CN107482338A - Front and back double-sided electric connection structure - Google Patents

Abstract

The present invention provides a front and back double-sided electrical connection structure, which includes: a butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with an upper plate surface and a lower plate surface, the upper plate surface and the lower plate surface are respectively provided with a row of first contacts, the two rows of first contacts are formed on two rows of first terminals, the two rows of first terminals are positioned on the insulator of the butt joint structure, at least one pair of the first contacts which are arranged in opposite directions are arranged in the two rows of first contacts, the shape of the butt joint structure can be butt-jointed and clamped on a butt joint connector in a positive and negative double-sided way, the left side and the right side of the butt joint structure are provided with clamping structures made of metal materials, and when the butt joint structure is butt-jointed with the butt joint connector, the clamping structures can be clamped with the.

Description

Front and back double-sided electrical connection structure

This application is a divisional application of an invention patent application with an application date of August 30, 2011, an application number of 201110252587.1, and an invention title of "electronic device with plate-type connector and its manufacturing method".

technical field

The present invention relates to an electrical connector, in particular to a positive and negative double-sided electrical connection structure.

Background technique

The most popular signal transmission specification for computer equipment today is the Universal Serial Bus (USB for short). Connector sockets and transmission lines made of this specification can be used to connect external peripheral equipment to the computer, such as mice, keyboards, and flash drives. etc., which are measured by the computer and used immediately.

At present, both the USB socket and the USB connector are one-way electrical connection. In order to ensure that the USB connector can be electrically connected when it is inserted into the USB socket, the two have a fool-proof design on the docking, that is, when the USB connector is inserted in the reverse direction, it cannot be inserted. Use Or it will be inserted in another direction, and it can be inserted only when the direction is correct, so as to ensure that there is an electrical connection after insertion.

At present, there are two specifications of USB 2.0 and 3.0. Please refer to Fig. 1 and Fig. 2. It is an existing USB 2.0 specification and has a plate-type connector disc 1, which is provided with a plastic seat 10 and a circuit board 15. The rear section of the circuit board 15 is covered by the plastic base body 10, and only one surface of the front section of the circuit board 15 is exposed outside the plastic base body 10, and the board surface is provided with a row of four contacts 16.

Please refer to Fig. 3, it is the electrical connection female seat 20 of the existing USB2. On the upper position of the slot, only the bottom of the tongue is provided with a row of 4 contact points 23, and the top surface and the bottom surface of the metal shell 25 are punched to protrude two elastic pieces 24.

Please refer to FIG. 4 , in use, the flash drive 1 must be inserted into the connection groove 21 with the contacts 16 facing up to be electrically connected to a row of contacts 23 located under the tongue 22 , and the four elastic plates 24 are pressed against the body of the disc. Disc 1; if the disc body disc 1 is inserted into the connection slot 21 on the reverse side, it will not be able to be electrically connected. The user usually inserts it at random, so the probability of not being able to insert it is 1/2, so it is often inserted twice, causing inconvenience in use.

For the convenience of use, it is still necessary to be electrically connected in both directions to meet the requirements. Therefore, the applicant has developed an electronic device with a double-sided electrical connection function and a front-to-back double-sided connector. In order to match the double-sided electrical connection function, the connector must be designed with two rows of contacts. However, in use, it is feared that the shrapnel 24 electrically connected to the female seat will abut against the contacts on the other board and cause a short circuit, so this problem must also be overcome.

The applicant of the present invention devoted himself to researching the double-sided plug-in design of the above-mentioned products, and finally proposed an improved product structure to overcome the above-mentioned potential problems.

In order to facilitate the examination, the implementation of the independent claims is as follows, claim 1 is implemented in Figures 49-51, 56-59, claim 2 is implemented in Figures 56-59, and claim 3 is implemented in Figures 111-114 , claim 4 is implemented in Figures 111-114, claim 5 is implemented in Figures 75-77, 96, claim 6 is implemented in Figures 49, 75-80, 94-96, 111-114, and claim 7 is implemented in Implementation in Figures 17-18, 22-24, Claim 8 in Figures 49-51, 56-59, Claim 9 in Figures 52, 75-77, 94-97, Claim 10 in Figure 33- 34, claim 11 is implemented in Figures 36-37, claim 12 is implemented in Figure 24, claim 13 is implemented in Figures 25-32, claim 14 is implemented in Figure 22, and claims 15-19 are implemented in 17-18, claim 20 is implemented in FIGS. 14-15, 22, claim 21 is implemented in FIGS. 47-48, claim 22 is implemented in FIGS. 45-48, and claim 23 is implemented in FIG. 22 , Claim 24 is implemented in Figures 111-114, Claim 25 is implemented in Figures 20-21 and Figures 43-46, Claim 26 is implemented in Figures 47-48, and Claims 27-28 are implemented in Figures 17-18 Implementation, claim 30 is implemented in Figure 55, Figures 43-44.

Contents of the invention

The main purpose of the present invention is to provide a front and back double-sided electrical connection structure, wherein both the upper and lower boards of the docking structure have contact points, so as to achieve convenience and diversity in use.

To achieve the above object, the present invention provides a double-sided electrical connection structure, which includes:

A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, the two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the The insulator of the butt joint structure, at least one pair of contacts with the same circuit number in the two rows of contacts are arranged in opposite directions. A locking structure made of metal is provided on the side, and when the docking structure is docked with the docking electrical connector, the locking structure can be locked with the docking electrical connector.

The present invention further provides a positive and negative double-sided electrical connection structure, which includes: a pair of butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row Contacts, the two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the insulator of the butt joint structure. In the two rows of contacts, at least one pair of contacts with the same circuit number are arranged in opposite directions. The shape of the butt joint structure can be positive Anti-double-sided mating is positioned on a mating electrical connector; and

A metal plate is arranged in the middle of the thickness of the butt joint structure, and the metal plate separates the two rows of terminals.

With the above structure, the present invention can achieve convenience and diversity in use.

The above and other objects, advantages and features of the present invention can be more clearly understood from the detailed description of the preferred embodiments with reference to the drawings.

Description of drawings

FIG. 1 is a perspective view of a known flash drive.

Fig. 2 is a front sectional view of a known flash drive.

Fig. 3 is a front view of a conventional electrical connection socket.

Fig. 4 is a front view of a conventional USB flash drive inserted into an electrical connection socket.

Fig. 5 is an exploded perspective view of the first embodiment of the present invention.

Fig. 6 is a three-dimensional assembled view of the first embodiment of the present invention.

Fig. 7 is a front sectional view of the first embodiment of the present invention.

FIG. 8 is a schematic diagram of the serial connection of two rows of first contacts according to the first embodiment of the present invention.

Fig. 9 is a diagram of the use state of the first embodiment of the present invention.

Fig. 10 is a three-dimensional assembled view of the second embodiment of the present invention.

Fig. 11 is a front sectional view of a second embodiment of the present invention.

Fig. 12 is a three-dimensional assembled view of the third embodiment of the present invention.

FIG. 13 is a schematic diagram of the serial connection of two rows of first contacts according to the third embodiment of the present invention.

Fig. 14 is a side sectional view of a fourth embodiment of the present invention.

Fig. 15 is a front view of a fourth embodiment of the present invention.

Fig. 16 is a perspective combined view of the fifth embodiment of the present invention.

Fig. 17 is an exploded perspective view of the sixth embodiment of the present invention.

Fig. 18 is a perspective combined view of the sixth embodiment of the present invention.

Fig. 19 is a perspective combined view of the seventh embodiment of the present invention.

Fig. 20 is a perspective assembled front view of the eighth embodiment of the present invention.

Fig. 21 is a perspective combined view of the reverse side of the eighth embodiment of the present invention.

Fig. 22 is a side sectional view of a ninth embodiment of the present invention.

Fig. 23 is a side sectional view of a tenth embodiment of the present invention.

Fig. 24 is a side sectional view of an eleventh embodiment of the present invention.

Fig. 25 is a three-dimensional assembled view of the twelfth embodiment of the present invention.

Fig. 26 is a front sectional view of a twelfth embodiment of the present invention.

Fig. 27 is a side sectional view of a twelfth embodiment of the present invention.

Fig. 28 is a schematic diagram of a switch device and a control circuit according to a twelfth embodiment of the present invention.

Fig. 29 is a schematic diagram of a switch device and a control circuit according to a twelfth embodiment of the present invention.

Fig. 30 is a schematic diagram of a switch device and a control circuit according to a twelfth embodiment of the present invention.

Fig. 31 is a schematic diagram of a switch device and a control circuit according to a thirteenth embodiment of the present invention.

Fig. 32 is a schematic diagram of a switch device and a control circuit according to a fourteenth embodiment of the present invention.

Fig. 33 is a front plan view of a fifteenth embodiment of the present invention.

Fig. 34 is a reverse plan view of a fifteenth embodiment of the present invention.

Fig. 35 is a front sectional view of a sixteenth embodiment of the present invention.

Fig. 36 is a front plan view of a seventeenth embodiment of the present invention.

Fig. 37 is a reverse plan view of a seventeenth embodiment of the present invention.

Fig. 38 is a top view of an eighteenth embodiment of the present invention.

Fig. 39 is a side sectional view of an eighteenth embodiment of the present invention.

Fig. 39A is a front sectional view of an eighteenth embodiment of the present invention.

Fig. 40 is a three-dimensional assembled view of the nineteenth embodiment of the present invention.

Fig. 41 is a side sectional view of a nineteenth embodiment of the present invention.

Fig. 42 is a side sectional view of a twentieth embodiment of the present invention.

Fig. 43 is a side sectional view of a twenty-first embodiment of the present invention.

Fig. 44 is a front sectional view of a twenty-first embodiment of the present invention.

Fig. 45 is a side sectional view of a twenty-second embodiment of the present invention.

Fig. 46 is a front view of a twenty-second embodiment of the present invention.

Fig. 47 is a side sectional view of a twenty-third embodiment of the present invention.

Fig. 48 is a perspective view of a connecting plate according to the twenty-third embodiment of the present invention.

Fig. 49 is a three-dimensional assembled view of the twenty-fourth embodiment of the present invention.

Fig. 50 is a three-dimensional assembled view of the twenty-fifth embodiment of the present invention.

Fig. 51 is a three-dimensional assembled view of the twenty-sixth embodiment of the present invention.

Fig. 52 is a side sectional view of a twenty-seventh embodiment of the present invention.

Fig. 53 is a side sectional view of a twenty-eighth embodiment of the present invention.

Fig. 54 is a side sectional view of a twenty-ninth embodiment of the present invention.

Fig. 55 is a side sectional view of a thirtieth embodiment of the present invention.

Fig. 56 is a three-dimensional assembled view of the thirty-first embodiment of the present invention.

Fig. 57 is a front sectional view of a thirty-first embodiment of the present invention.

Fig. 58 is a three-dimensional assembled view of the thirty-second embodiment of the present invention.

Fig. 59 is a three-dimensional assembled view of the thirty-third embodiment of the present invention.

Fig. 60 is a top view of a thirty-fourth embodiment of the present invention.

Fig. 61 is a side sectional view of a thirty-fourth embodiment of the present invention.

Fig. 62 is a front sectional view of a thirty-fourth embodiment of the present invention.

Fig. 63 is a perspective view of a thirty-fourth embodiment of the present invention.

Fig. 63A is another perspective view of the thirty-fourth embodiment of the present invention.

Fig. 64 is a perspective view of a thirty-fifth embodiment of the present invention.

Fig. 65 is a side sectional view of a thirty-sixth embodiment of the present invention.

Fig. 66 is a side sectional view of a thirty-seventh embodiment of the present invention.

Fig. 67 is a side sectional view of a thirty-eighth embodiment of the present invention.

Fig. 68 is a front sectional view of a thirty-eighth embodiment of the present invention.

Fig. 69 is a top view of a thirty-ninth embodiment of the present invention.

Fig. 70 is a side sectional view of a thirty-ninth embodiment of the present invention.

Fig. 71 is a front sectional view of a thirty-ninth embodiment of the present invention.

Fig. 72 is a top view of a fortieth embodiment of the present invention.

Fig. 73 is a side sectional view of a fortieth embodiment of the present invention.

Fig. 74 is a front sectional view of a fortieth embodiment of the present invention.

Fig. 75 is a top view of the forty-first embodiment of the present invention.

Fig. 76 is a side sectional view of a forty-first embodiment of the present invention.

Fig. 77 is a front view of a forty-first embodiment of the present invention.

Fig. 78 is a side sectional view of a forty-second embodiment of the present invention.

Fig. 79 is a side sectional view of a forty-third embodiment of the present invention.

Fig. 80 is a side sectional view of a forty-fourth embodiment of the present invention.

Fig. 81 is a top view of a forty-fifth embodiment of the present invention.

Fig. 82 is a side sectional view of a forty-fifth embodiment of the present invention.

Fig. 83 is a front sectional view of a forty-fifth embodiment of the present invention.

Fig. 84 is a perspective view of the forty-sixth embodiment of the present invention (with the outer covering removed).

Fig. 85 is a perspective view of a forty-sixth embodiment of the present invention.

Fig. 86 is a side sectional view of a forty-seventh embodiment of the present invention.

Fig. 87 is a perspective view of a forty-eighth embodiment of the present invention.

Fig. 88 is a side sectional view of a forty-eighth embodiment of the present invention.

Fig. 89 is a side sectional view of a forty-ninth embodiment of the present invention.

Fig. 90 is a rear sectional view of a forty-ninth embodiment of the present invention.

Fig. 91 is a rear view of a fiftieth embodiment of the present invention.

Fig. 92 is a rear view of a fifty-first embodiment of the present invention.

Fig. 93 is a rear view of a fifty-second embodiment of the present invention.

Fig. 94 is a side sectional view of a fifty-third embodiment of the present invention.

Fig. 95 is a rear view of a fifty-third embodiment of the present invention.

Fig. 96 is a side sectional view of a fifty-fourth embodiment of the present invention.

Fig. 97 is a rear view of a fifty-fourth embodiment of the present invention.

Fig. 98 is a side sectional view of a fifty-fifth embodiment of the present invention.

Fig. 99 is a rear view of a fifty-fifth embodiment of the present invention.

Fig. 100 is a rear view of a fifty-sixth embodiment of the present invention.

Fig. 101 is a rear view of a fifty-seventh embodiment of the present invention.

Fig. 102 is a rear view of a fifty-eighth embodiment of the present invention.

Fig. 103 is a rear view of a fifty-ninth embodiment of the present invention.

Fig. 104 is a side sectional view of a sixtieth embodiment of the present invention.

Fig. 105 is a front sectional view of a sixtieth embodiment of the present invention.

Fig. 106 is a three-dimensional assembled view of the sixtieth embodiment of the present invention.

Fig. 107 is a bottom perspective view of a sixtieth embodiment of the present invention.

Fig. 108 is a three-dimensional combined view of the sixty-first embodiment of the present invention.

Fig. 109 is a three-dimensional assembled view of the sixty-second embodiment of the present invention.

Fig. 110 is an exploded perspective view of the sixty-third embodiment of the present invention.

Fig. 111 is a front perspective exploded view of the sixty-fourth embodiment of the present invention.

Fig. 112 is a reverse perspective exploded view of the sixty-fourth embodiment of the present invention.

Fig. 113 is a front perspective exploded view of the sixty-fourth embodiment of the present invention after sealing.

Fig. 114 is a front perspective assembled view of the sixty-fourth embodiment of the present invention after sealing.

Fig. 115 is a perspective exploded front view of the sixty-fifth embodiment of the present invention after sealing.

Fig. 116 is a front perspective assembled view of the sixty-fifth embodiment of the present invention after sealing.

detailed description

Please refer to Fig. 5, Fig. 6, and Fig. 7, it is the first embodiment of the present invention, it is a USB2. Body 30, a circuit board 40, a connecting plate 55, an electronic unit 4 and a position-limiting structure 50, wherein:

The outer covering body 30 is made of plastic material, and has a lower seat 31 and an upper cover 32 , and the lower seat 31 has a chamber 33 .

The circuit board 40 is placed in the chamber 33 of the outer covering body 30, the rear section of the circuit board 40 is covered by the outer covering body 30, and the front section of the circuit board 40 is exposed outside the outer covering body 30, which is the Connecting plate 55, so this connecting plate 55 is directly contacted and fixed on this outer covering body 30, and the two board surfaces (upper and lower board surfaces) of this connecting board 55 are respectively provided with a row of first contacts 41, and the two rows of first contacts 41 It is the circuit contact formed on the circuit board 40, and the first contact 41 of the two rows is 4, which can respectively transmit 1. VCC (power supply), 2. USB D- (signal), 3. USB D+ (signal) and 4 .GND (grounding) and other circuits, the two rows of first contacts 41 are the same connection interface and the circuit numbers are arranged in reverse, as shown in Figure 7, the first row of contacts 41 on the connection board 55 The circuit numbers are a1, a2, a3, a4 from right to left, and the circuit numbers of a row of first contacts 41 on the bottom surface of the connecting board 55 are b4, b3, b2, b1 from right to left. In addition, the shape of the connecting plate 55 is symmetrical in front and back, so that the front and back sides can be aligned and positioned on an electrical connection socket.

The outer covering body 30 and the connecting plate 55 are combined into a butt joint structure. The following second embodiment to the sixty-fifth embodiment are all combined with the outer covering body 30 and the connecting plate 55 into a butt joint structure, that is, the connecting plate 55 is a butt joint structure. part of it.

Please refer to Fig. 8, those with the same circuit number of the first contacts 41 in the two rows are electrically connected in series to form a group, that is, a1 and b1 are electrically connected, a2 and b2 are electrically connected, a3 and b3 are electrically connected, a4 and b4 are electrically connected, Among them, a1 and b1 are power contacts, which must not cause a short circuit. Therefore, a1 and b1 are electrically connected to each other through a Schottky diode 46. The function of the Schottky diode 46 is mainly to prevent the current from flowing backward. Anti-short circuit effect.

The above-mentioned use of Schottky diode anti-short circuit is a kind of electronic anti-backflow or anti-short circuit safety protection method, but there are also many ways such as setting anti-backflow electronic components or anti-short circuit electronic components or circuit safety protection Components or safety circuit setting means to achieve the effect of circuit safety protection.

The electronic unit 4 is a storage unit, which is electrically connected to the circuit board 40 and covered by the outer covering body 30. It includes a memory 43 and a control circuit 45. The memory 43 can be but not limited to Flash memory (flash memory) or read-only memory (ROM), the capacity of the memory 43 is not limited, the control circuit 45 is to control the operation of the memory 43 of the electronic unit, the two rows of first contacts 41 The electronic unit 4 is electrically connected.

The limiting structure 50 is integrally formed with the outer covering body 30, and the limiting structure 50 forms four ribs in the front and rear directions on the two surfaces of the connecting plate 55 respectively. The first contacts 41 protrude to protect the two rows of first contacts 41 and prevent short circuit. The connecting plate 55 is provided with two through holes 42 matching with the two ribs in the middle of the limiting structure 50 .

Please refer to Fig. 9, by the above structure, when the USB flash drive 3 of the present embodiment is inserted into an electrical connection female seat 20, due to the shape of the connecting plate, both front and back sides can be positioned on the electrical connecting female seat 20 and the connecting plate The two boards are provided with the same connection interface and the circuit numbers are two rows of first contacts 41 arranged in opposite directions, so the user can use any board to insert the connection groove 21 of the electrical connection socket 20 to locate and electrically connect. As shown in the figure, when a row of first contacts a1, a2, a3, a4 is electrically connected with a row of contacts 23 of the electrical connection female seat 20, the elastic piece 24 of the electrical connection female seat 20 is to reach the limit of the other board surface. The bit structure 50 does not touch the first contacts b1, b4 to cause a short circuit. Furthermore, since the first contact b1 is electrically connected to the Schottky diode 46, the current will not flow back to the first contact b1, thus ensuring that the power contact, that is, the first contact b1, will not be short-circuited.

In addition, this embodiment may further include a control means combined with the USB2.0 flash drive to perform a data storage and control program on the storage unit.

The outer cover 30 of the above-mentioned embodiment is a plastic shell, and the electronic unit 4 is welded to the circuit board. The outer cover 30 covers the circuit board 40 and the electronic unit 4. However, in order to make the overall flash drive lighter The memory and the control circuit of the electronic unit 4 can also be packaged on the circuit board 40 in a Chip On Board (COB) manner, so that the electronic unit 4 is also electrically connected to the circuit board and is an outer covering Encapsulation and encapsulation in the form of COB still fall within the scope of the present invention.

Please refer to Fig. 10 and Fig. 11, it is the second embodiment of the present invention, which is roughly the same as the first embodiment, the difference is that the limiting structure 50 of this embodiment is a metal layer, which is plated on the connecting plate by electroplating 55 on both sides of the two boards.

Please refer to Fig. 12 and Fig. 13, which is the third embodiment of the present invention, which is roughly the same as the second embodiment. A row of first contacts a1 , a2 , a3 , a4 and a row of first contacts b1 , b2 , b3 , b4 are each electrically connected to a Schottky diode 46 to prevent current backflow and achieve short-circuit prevention.

Please refer to Fig. 14 and Fig. 15, it is the fourth embodiment of the present invention, and it is substantially the same as the first embodiment, and this embodiment is also provided with an outer covering body 30, a circuit board 40, a connecting plate 55 and an electronic unit and A limit structure 50, the difference is that the connection plate 55 is integrally formed with the outer covering body 30, it is provided with a row of four first terminals 60 and a detection structure 80, each first terminal 60 is provided with a first contact 62, 63 are flatly attached to the two board surfaces of the connection plate 55 respectively, and the detection structure 80 is fixed on the outer covering body 30, and it is provided with two movable terminals 81, 82 and a fixed terminal 83, and the two movable terminals 81 , 82 are located above and below the fixed terminal 83 and are provided with a protruding point 85 protruding from the upper and lower surfaces of the connecting plate 55 respectively. When a row of first contacts 62 is electrically connected to the electrical connection socket, the movable terminal 81 is pressed and conducts with the fixed terminal 83 to complete the detection. In this way, the control circuit can know that the row of first contacts 62 is electrically connected. Corresponding circuit signal transmission is adopted; on the contrary, when the reverse side of the flash drive is inserted into the electrical connection base for electrical connection, when the row of first contacts 63 are electrically connected to the electrical connection base, the movable terminal 82 is pressed and fixed. The detection of the conduction of the terminal 83 is completed, so that the control circuit can know that the row of first contacts 63 is electrically connected and can perform signal transmission opposite to the aforementioned circuit.

Please refer to FIG. 16 , which is the fifth embodiment of the present invention, which is a USB3.0 standard flash drive, which is roughly the same as the first embodiment. The connecting plate 55, an electronic unit and a position-limiting structure 50 are different in that two rows of five second terminals 70 are added in this embodiment, and the second terminals 70 are provided with a springable extension 71. The extension 71 One end extends to the connecting plate 55 and is provided with a protruding second contact 72, and the other end of the extension is provided with pins welded to the circuit board 40 to be electrically connected with the electronic unit, and the two rows of second contacts 72 protrude respectively. The second contact 72 can bounce up and down along with the extension portion 71 .

Please refer to Fig. 17 and Fig. 18, it is the sixth embodiment of the present invention, it is a USB3. Circuit board 40, a connection board 55, an electronic unit 4, two rows of first terminals 60 and two rows of second terminals 70, wherein:

The outer covering body 30 is made of plastic material, and has a lower seat 31 and an upper cover 32 , and the lower seat 31 has a chamber 33 .

The circuit board 40 is placed in the chamber 33 of the outer covering body 30 , and the circuit board 40 is covered by the outer covering body 30

The connection plate 55 is integrally formed at the front end of the outer covering body 30. The shape of the connection plate 55 can be positioned on the electrical connection socket with both front and back sides facing each other. The upper and lower surfaces of the connection plate 55 are provided with a row of four concave surfaces 57. And the concave surface 57 is provided with a row of 5 through holes 56 behind.

The electronic unit 4 is a storage unit, which is electrically connected to the circuit board 40 and covered by the outer covering body 30. It includes a memory 43 and a control circuit 45. The capacity of the memory 43 is not limited. , the control circuit 45 controls the operation of the memory 43 of the electronic unit.

There are four first terminals 60 in each of the two rows. The first terminals 60 are provided with a non-elastic extension 61. One end of the extension 61 extends to the connecting plate 55 and has a first contact 62 flat against the concave surface. 57, the first contact 62 is a flat contact and is the highest surface of the two boards of the connecting board 55, the other end of the extension 61 is provided with pins welded to the circuit board 40 and electrically connected to the electronic unit 4, the The two rows of first contacts 62 are respectively flatly attached to the concave surfaces 57 of the two surfaces of the connecting plate 55 .

There are five second terminals 70 in the two rows. The second terminals 70 are provided with a springable extension 71. One end of the extension extends to the connecting plate 55 and a protruding second contact 72 is provided. The extension The other end of the part is provided with pins welded on the circuit board 40 to be electrically connected with the electronic unit 4, and the two rows of second contacts 72 respectively protrude from the two surfaces of the connection board 55 and are located behind the two rows of first contacts 62. , the second contact point 72 can bounce up and down with the extension portion 71 .

According to the USB association standard, the USB3.0 connection interface is the first 4 contacts in the front row, which are 1.VBUS (power supply), 2.USB D- (signal), 3.USB D+ (signal) and 4.GND ( Ground) and other circuits, the 5 second contacts in the back row are 5.RX- (signal), 6.RX+ (signal), 7.GND (ground), 8.TX- (signal), 9.TX+ (signal ) and other circuits, this is a supplementary description of the USB Association specification.

The second row of first contacts 62 and the second row of second contacts 72 in this embodiment are all the same connection interface and the circuit numbers are arranged in reverse order. Although this embodiment does not have a limiting structure, it can be equipped with electronic anti-backflow or anti-short circuit However, there are many ways such as setting Schottky diodes or anti-backflow electronic components or anti-short circuit electronic components or circuit safety protection components or safety circuit setting means to achieve circuit safety protection effect .

Please refer to FIG. 19 , which is the seventh embodiment of the present invention, which is substantially the same as the sixth embodiment, the difference being that this embodiment has a limiting structure 50 protruding from both surfaces of the connecting plate 55 .

Please refer to Fig. 20 and Fig. 21, it is the eighth embodiment of the present invention, and it is roughly the same as the fifth embodiment, and its difference is that the electronic unit of this embodiment is further provided with a memory 44, and the connection interface of the connecting plate 55-board surface It is electrically connected to the memory 43, which is the same interface as the fifth embodiment, which is the connection interface of USB3.0, and the other board surface of the connection board 55 is provided with a row of 9 first contacts 41, which are miCard The connection interface, the row of nine first contacts 41 is electrically connected to the memory 44 .

Please refer to FIG. 22 , which is the ninth embodiment of the present invention, which is a flash drive with USB3.0 specification, which is roughly the same as the seventh embodiment. The connection plate 55 and an electronic unit 4, two rows of first terminals 60 and two rows of second terminals 70 and a position-limiting structure, the difference is that this embodiment is additionally equipped with a detection structure, which includes two movable terminals and two contacts, the two movable terminals are respectively one terminal in the second row of terminals 70, the two contacts are respectively the contacts 417, 418 located on the two board surfaces of the circuit board 40, and the contacts 417, 418 are electrically connected to the control Circuit 45, the control circuit 45 of the electronic unit 4 includes safety circuit setting means. In use, when the front of the flash drive is inserted into the electrical connection socket, when the row of first terminals 60 and the row of first terminals 60 on the upper surface of the connection board 55 When the two terminals 70 are electrically connected to the electrical connection socket, one of the second terminals 70 is connected to the contact point 417 to complete the detection, so the control circuit 45 can know that it is a row of first terminals 60 and the first terminal 60 on the upper surface of the connection board 55. A row of second terminals 70 is electrically connected to the electrical connection socket, and can be used as appropriate circuit safety protection to prevent a row of first terminals 60 and a row of second terminals 70 on the lower surface of the connecting plate 55 from causing a short circuit; otherwise, when The opposite side of the flash drive is inserted into the electrical connection socket. When a row of first terminals 60 and a row of second terminals 70 on the lower surface of the connecting plate 55 are electrically connected to the electrical connection socket, one of the second terminals 70 is connected to the contact point 418. Conduction to complete the detection, so the control circuit 45 can know that a row of first terminals 60 and a row of second terminals 70 on the lower surface of the connecting plate 55 are electrically connected to the electrical connection female seat, and can be used for appropriate circuit safety protection. To prevent a short circuit caused by a row of first terminals 60 and a row of second terminals 70 on the upper surface of the connection board 55 .

Please refer to Fig. 23, which is the tenth embodiment of the present invention, which is a USB3.0 standard flash drive, which is roughly the same as the ninth embodiment, the difference is that this embodiment is only provided with a row of first terminals 60, and each first A terminal 60 is provided with first contacts 62 and 63 flatly attached to two surfaces of the connection board 55 respectively.

Please refer to Fig. 24, it is the eleventh embodiment of the present invention, it is a USB3. A control circuit 45 further includes another memory 44, and the first contact of a row of first terminals 60 and the second contact of a row of second terminals 70 on one surface of the connection board 55 are electrically connected to the memory 43, The first contacts of a row of first terminals 60 and the second contacts of a row of second terminals 70 on the other surface of the connection board are electrically connected to the memory 44 .

Please refer to Fig. 25, Fig. 26 and Fig. 27, it is the twelfth embodiment of the present invention, it is a USB2. In addition to including a memory 43 (A) and a control circuit 45, the unit 4 also includes another memory 44 (B), and a switch device 90 is provided on the outer covering body 30. There is a sliding button 91 and a sliding groove 92, the sliding button 91 can slide in the sliding groove 92 to switch between A, B and C, as shown in Figure 28, the sliding button 91 is provided with two rows of conductive parts 93 inside, Each of the two rows of conductive parts 93 is four, and the control circuit 45 is provided with an IC control chip 47. The first contacts 41 of the two rows are the same connection interface and the circuit numbers are arranged in reverse order. After being connected in series to form a group, it is electrically connected with the IC control chip 47, and the IC control chip 47 is electrically connected to the memory A and the memory B by four circuits 49 respectively, and each circuit 49 is respectively provided with a pair of separated Contact 48, the four pairs of contacts 48 electrically connected to the circuit of the memory A are in a row, and the four pairs of contacts 48 electrically connected to the circuit of the memory B are also in a row, and the two rows of conductive parts 93 of the sliding button 91 The 4 pairs of contact points 48 of the four circuits electrically connected to the memory A can be single-conducted or the four pairs of contacts 48 of the four circuits electrically connected to the memory B can be connected in a single way or the four circuits electrically connected to the memory A can be connected at the same time The four pairs of contact points 48 of the circuit and the four pairs of contact points 48 of the circuit of the memory B are electrically connected.

Please refer to Fig. 28, when the slide button 91 is switched to the A position, a row of conductive parts 93 of the slide button 91 is a single conduction connection to the four contact points 48 of the four circuits electrically connected to the memory A, at this time the memory A can be electrically connected on both sides, the control circuit 45 only operates on the memory A, and the memory B becomes an open circuit state at this time and can prevent reading and writing; please refer to Figure 29, when the sliding button 91 is switched to the B position, A row of conductive parts 93 of the sliding button 91 is a single guide to the 4 pairs of contact points 48 of the four circuits electrically connected to the memory B. At this time, the memory B can be electrically connected on both sides, and the control circuit 45 is only for the memory. Body B is in operation, and the memory A is in an open state at this time and can prevent reading and writing; please refer to FIG. Four pairs of contact points 48 electrically connected to the circuit of the memory A and four pairs of contacts 48 of the four circuits electrically connected to the memory B, at this time, the memory A and B can be electrically connected on both sides, the control circuit 45 operates on memory A and memory B at the same time.

Please refer to FIG. 31, which is the thirteenth embodiment of the present invention, which is a USB2.0 standard flash drive, which is roughly the same as the twelfth embodiment, and the difference is that the control circuit 45 of this embodiment is provided with two IC control Chip 47, an IC control chip 47 is electrically connected to the memory A and a row of first contacts a1, a2, a3, a4, and another IC control chip 47 is electrically connected to the memory B and a row of first contacts b1, b2, b3, b4.

Please refer to Fig. 32, which is the fourteenth embodiment of the present invention, which is a USB2.0 standard flash drive, which is roughly the same as the twelfth embodiment, the difference is that the control circuit 45 of this embodiment is provided with two IC control Chips 47 , one IC control chip 47 is electrically connected to the memory A, and the other IC control chip 47 is electrically connected to the memory B.

Please refer to Fig. 33 and Fig. 34, which is the fifteenth embodiment of the present invention, which is a secure digital card (Secure Digital Card referred to as SDC), which can be electrically connected to an electrical connection socket on both sides, which includes an outer covering 30. A circuit board 40, a connecting plate 55, a position-limiting structure 50 and an electronic unit 4, wherein:

The outer covering body 30 is a plastic material.

The connection plate 55 is integrally formed on the front end of the outer covering body 30 , and the shape of the connection plate 55 is left-right symmetrical, so it can be positioned on the electrical connection socket with both front and back sides facing each other.

The circuit board 40 is covered by the outer covering body 30, and the front section of the circuit board 40 extends to the connection plate 55. The two front sections of the circuit board 40 are respectively provided with a row of first contacts 41, which are formed by mesh lines. As shown, the two rows of first contacts 41 expose the two board surfaces of the connection board 55, and the two rows of first contacts 41 are all nine for the same connection interface and the circuit numbers are arranged in reverse order. The two rows of first contacts 41 In order to provide a plurality of longer flat contact points and a plurality of shorter flat contact points, in addition, the shape of the connecting plate 55 is symmetrical on the front and back sides, so the front and back sides can be aligned and positioned on an electrical connection socket.

The electronic unit 4 is a storage unit, which is electrically connected to the circuit board 40 and covered by the outer covering body 30 . The two rows of first contacts 41 are electrically connected to the electronic unit 4 .

The limiting structure 50 is also integrally formed with the outer covering body 30 and the connecting plate 55. The limiting structure 50 is arranged on both surfaces of the connecting plate 55 and protrudes from the first contacts 41 of the two rows, so as to prevent the two rows from The first contact 41 is scratched and short-circuited.

With the above structure, the front and back sides of the SDC can be inserted into the connection groove of an electrical connection socket and can be positioned and electrically connected.

In addition, about miCard, micro SDC, mini SDC, Memory Stick Card (MSC for short), Memory Stick Dou Card (MS-Dou C for short)...etc. The general implementation of embodiment.

Please refer to Fig. 35, which is the sixteenth embodiment of the present invention, which is roughly the same as the seventh embodiment, the difference being that the two rows of first contact points 62 on the two board surfaces of the connection plate 55 of this embodiment are different connection interfaces, and the connection The position-limiting structures 50 on the two board surfaces of the board 55 are also staggered up and down.

Please refer to Fig. 36 and Fig. 37, it is the seventeenth embodiment of the present invention, and it is an IC chip card (smart card for short), and it can be electrically connected to an electrical connection socket on both sides, and it includes an outer covering body, A connecting plate and an electronic unit 4, wherein:

The outer covering body and the connecting plate are a butt joint structure 58 integrally formed of plastic material in a plate shape. The two boards of 55 are respectively flatly attached with the same connection interface and a row of first contacts 62 and a row of second contacts 72 with circuit numbers arranged in opposite directions. The two rows of second contacts 72 are located in the two rows of first contacts. After 62.

The electronic unit 4 is an IC chip disposed in the docking structure 58 , and the two rows of first contacts 62 and the two rows of second contacts 72 are electrically connected to the electronic unit 4 .

With the above structure, the front and back sides of the IC chip card can be inserted into the connection groove of an electrical connection female seat and can be positioned and electrically connected.

Please refer to Fig. 38, Fig. 39 and Fig. 39A, which are the eighteenth embodiment of the present invention, which is an electrical connection cable of USB2.0 specification, which can be electrically connected to an electrical connection socket on both sides, which includes an outer Covering body 30, an electronic unit 4, a connecting plate 55, two rows of first terminals 60 and an electronic unit 4, wherein:

The outer covering body 30 is a plastic material.

The connecting plate 55 is integrally formed on the front end of the outer covering body 30 .

The electronic unit 4 is a set of four wires 419 covered by the outer covering body 30 .

The two rows of first terminals 60 are fixed on the outer covering body 30, and each of the two rows of first terminals 60 is four, which can respectively transmit signals such as VCC, USB D-, USB D+ and GND. The first terminals 60 are provided with A non-elastic extension, one end of the extension extends to the connection plate 55 and a first contact point 62 is flatly attached to a surface of the connection plate 55, and the other end of the extension is electrically connected to a wire of the electronic unit 4 , the two rows of first contacts 62 are respectively flatly attached to the two board surfaces of the connection board 55, the two rows of first contacts 62 are the same connection interface and the circuit numbers are arranged in reverse order, as shown in Figure 39A, the front circuit numbers From right to left are 1, 2, 3, 4, and the circuit numbers on the reverse side are 4, 3, 2, 1 from right to left, and those with the same circuit numbers of the first contacts 62 in the second row are electrically connected to the same circuit number of the electronic unit 4. electric wire.

With the above structure, the front and back sides of the electrical connection wire can be inserted into the connection groove of an electrical connection socket to be positioned and electrically connected, and the other end of the electrical connection wire can be electrically connected to such as keyboard, mouse, LED lamp, fan, etc. , adapters... and other electronic devices.

Please refer to Fig. 40 and Fig. 41, which are the nineteenth embodiment of the present invention, which is a wireless transceiver device of USB2.0 specification, which can be electrically connected to an electrical connection socket on both front and back sides, and which includes an outer covering body 30 , a circuit board 40, an electronic unit 4, a connecting plate 55, and a position-limiting structure 50, wherein:

The outer covering body 30 is a plastic material.

The connecting plate 55 is integrally formed on the front end of the outer covering body 30 .

The rear section of the circuit board 40 is covered by the outer covering body 30, and the front section of the circuit board 40 is exposed outside the outer covering body 30, which is the connecting plate 55, and the two board surfaces of the connecting plate 55 are provided with two rows. The first contacts 41 , the two rows of first contacts 41 are circuit contacts formed on the circuit board 40 , the two rows of first contacts 41 are all four for the same connection interface and the circuit numbers are arranged in opposite directions.

The electronic unit 4 is a wireless transceiver module, which is electrically connected to the circuit board 40 and covered by the outer covering body 30. It can transmit and receive electronic signals wirelessly. The first contacts 41 of the two rows are electrically connected to the Electronic unit 4.

The limiting structure 50 is a metal layer, which is plated on both sides of the connecting plate 55 by electroplating. The limiting structure 50 protects the two rows of first contacts 41 on the connecting plate 55 from being scratched. hurt.

With the above structure, the front and back sides of the wireless transceiver device can be inserted into the connection groove of an electrical connection female base to be positioned and electrically connected.

The wireless transceiver device of this embodiment can be a wireless network card, a bluetooth receiver, a 2.4G wireless transmission receiver (such as a wireless mouse transceiver) ... and other electronic devices.

Please refer to FIG. 42 , which is the twentieth embodiment of the present invention, which is a USB3.0 standard transfer electrical connector, which can be electrically connected to an electrical connection socket on both front and back sides, and includes an outer covering body 30, An electronic unit 4, a connection board 55, a circuit board 40, two rows of first terminals 60 and two rows of second terminals 60, wherein:

The outer covering body 30 is a plastic material.

The connecting plate 55 is a plastic plate, which is combined and fixed on the front end of the outer covering body 30 , and its rear end is integrally formed with a fixing seat 59 fixed in the outer covering body 30 , and the connecting plate 55 is exposed outside the outer covering body 30 .

The circuit board 40 is disposed inside the outer covering body 30 .

The electronic unit 4 is a USB3.0 standard electrical connector and a switching circuit, part of which is covered by the outer covering body 30 , and is electrically connected to the circuit board 40 .

The two rows of first terminals 60 are fixed on the outer covering body 30, and each of the two rows of first terminals 60 is four. The first terminals 60 are provided with a non-elastic extension, and one end of the extension extends to the connecting plate. 55 and is provided with a first contact 62 flat against the first surface of the connection plate 55, the other end of the extension is welded with the circuit board 40 and electrically connected with the electronic unit 4, and the two rows of first contacts 62 are respectively flat against the Connecting plate 55 two board faces.

There are five second terminals 70 in the two rows. The second terminals 70 are provided with a springable extension. The other end is welded on the circuit board 40 to be electrically connected to the electronic unit 4. The two rows of second contacts 72 respectively protrude from the two surfaces of the connection plate 55 and are located behind the two rows of first contacts 62. The contact point 72 can bounce up and down with the extension portion 71 .

In this embodiment, the two rows of first contacts 62 and the two rows of second contacts 72 all have the same connection interface, and the circuit numbers are arranged in opposite directions.

With the above structure, the transfer electrical connector can be positioned and electrically connected by inserting the front and back sides of the connection board 55 into the connection groove of an electrical connection socket.

Please refer to FIG. 43 and FIG. 44, which are the twenty-first embodiment of the present invention, which is a transfer electrical connector with dual connection interfaces, which includes an outer covering body 30, a circuit board 40, a connecting board 55, An electronic unit 4 and a position-limiting structure 50, wherein:

The outer covering body 30 is a plastic material.

The rear section of the circuit board 40 is fixed in the outer covering body 30, and the front section of the circuit board 40 is exposed outside the outer covering body 30, which is the connecting plate 55, and the two board surfaces of the connecting plate 55 are provided with two rows of the first A contact 41, the two rows of first contacts 41 are circuit contacts formed on the circuit board 40, and the two rows of first contacts 41 are different connection interfaces. In addition, the shape of the connecting plate 55 is symmetrical in front and back, so that the front and back sides can be aligned and positioned on an electrical connection socket.

The electronic unit 4 is a USB2.0 standard electrical connection socket and a switching circuit, which is arranged in the outer covering body 30, and is electrically connected to the circuit board 40, and the two rows of first contacts 41 are electrically connected to the Electronic unit 4.

With the above structure, the transfer electrical connector is electrically connected by inserting the front and back sides of the connection plate 55 into the connection slots of the electrical connection sockets of different connection interfaces.

Please refer to FIG. 45 and FIG. 46, which are the twenty-second embodiment of the present invention, which is a USB2.0 standard transfer electrical connector, which is roughly the same as the twenty-first embodiment, and the difference lies in the two aspects of this implementation. The first contact points 41 in the row are all 4 of the same connection interface and the circuit numbers are arranged in reverse. The tongue 413 of the unit 4 is provided with a row of first contact points 411 respectively on both board surfaces. The two rows of first contact points 411 are different connection interfaces. The electronic unit 4 is arranged in the outer covering body 30 and is electrically connected to the circuit. board 40 , the two rows of first contacts 41 are electrically connected to the electronic unit 4 .

Please refer to Fig. 47 and Fig. 48, which are the twenty-third embodiment of the present invention, which is a USB3.0 standard transfer electrical connector, which is roughly the same as the twentieth embodiment, the difference lies in the electronic unit of this implementation 4 is a double-sided electrical connection male head and a switch circuit, the top surface and the bottom surface of the connection groove 410 of the electronic unit 4 are provided with a row of first contacts 411 and a row of second contacts 412, the top surface A row of first contacts 411 and a row of second contacts 412 and a row of first contacts 411 and a row of second contacts 412 on the bottom surface are the same connection interface and the circuit numbers are arranged in reverse order. The second electrical connection structure The connection interface is electrically connected to the switching circuit. The front end of the connection groove 410 is an insertion port. The rear section of the top and bottom surfaces is thicker than the front section, and the second contact 412 is higher than the first contact 411. The butt joint of the electrical connection structure The structure is provided with an outer casing covering an insulator; in addition, the upper and lower surfaces of the connecting plate 55 are provided with protruding limiting structures 50 .

The shape of the docking structure of the electrical connection structure of the electronic unit 4 can be positioned on an electrical connection base with both front and back faces facing each other. The structure of the electrical connection base is roughly the same as the electrical connection base shown in FIG. At least one row of contacts (411) are respectively provided on the upper and lower two board surfaces of the tongue of the mother seat, and at least one row of contacts on the upper and lower two board surfaces of the tongue are respectively electrically connected to the two connection interfaces of the electrical connection structure of the electronic unit 4 .

In addition, the connection plate 55 of the electrical connection structure on the right side of FIG. They are respectively electrically connected to the two rows of contacts on the upper and lower surfaces of the connection board.

Please refer to Fig. 49, which is the twenty-fourth embodiment of the present invention, which is a USB2.0 specification flash drive, which is roughly the same as the first embodiment, and the difference is that the connecting plate 55 and the limiting structure 50 of this embodiment are The plastic is integrally molded, and the upper and lower surfaces of the connecting plate 55 are each flatly provided with a row of four first contacts 62, and the two rows of first contacts 62 are formed on the second row of first terminals 60, and the two rows of first contacts 62 are the same The connection interface and the circuit numbers are arranged in opposite directions. The outer covering body 30 is a metal shell. The outer covering body 30 covers the periphery of the connecting plate 55 so that only the upper and lower plates are exposed. The outer covering bodies on both sides of the connecting plate 55 30 is provided with a positioning groove 35, when the USB flash drive is inserted into a female socket, it can be locked with the female socket by the positioning groove 35.

The two rows of first terminals 60 can be positioned on the connection board 55 by embedding and injection, or positioned on the connection board 55 by assembly.

Please refer to FIG. 50 , which is a twenty-fifth embodiment of the present invention, which is a USB2.0 flash drive, which is roughly the same as the twenty-fourth embodiment, except that the positioning groove 35 of this embodiment is slightly different.

Please refer to Fig. 51, which is the twenty-sixth embodiment of the present invention, which is a USB2.0 standard flash drive, which is roughly the same as the twenty-fourth embodiment, and the difference lies in the outer sides of the connecting plate 55 in this embodiment. The covering body 30 is provided with a positioning elastic piece 36, when the USB flash drive is inserted into a female socket, the positioning elastic piece 36 can be locked with the female socket.

Please refer to Fig. 52, which is the twenty-seventh embodiment of the present invention, which is a USB2.0 standard flash drive, which includes an outer covering body 30, a circuit board 40, a connecting plate 55, an electronic unit 4 and a The limiting structure 50 is roughly the same as the first embodiment, the difference is that the connecting plate 55 and the limiting structure 50 of this embodiment are integrally formed of plastic, the circuit board 40 is relatively thin, and the rear end of the connecting plate 55 is provided with a socket. The slot 52 is for one end of the circuit board 40 to be inserted and fixed. The upper and lower surfaces of the connection board 55 are each flatly provided with a row of four first contact points 62, and the two rows of first contact points 62 are formed on the second row of first terminals 60. The two rows of first contacts 62 are the same connection interface and the circuit numbers are arranged in opposite directions. The two rows of first contacts 62 are electrically connected to the circuit board 40. The electronic unit 4 is a storage unit, which is electrically connected to the circuit board 40. and covered by the outer covering body 30, it includes a memory 43 and a control circuit 45, the control circuit 45 controls the operation of the memory 43 of the electronic unit, and the two rows of first contacts 62 are electrically connected to the Electronic unit 4.

With the above structure, the circuit board 40 can adopt a thinner plate body. When the thickness of the outer covering body 30 is approximately the same as that of the connecting plate 55, there is still enough space for the circuit board 40 located in the outer covering body 30 to be arranged. The electronic unit 4.

Please refer to Fig. 53, which is the twenty-eighth embodiment of the present invention, which is a USB2.0 standard flash drive, which includes an outer covering body 30, a circuit board 40, a connecting plate 55, an electronic unit 4 and a The position-limiting structure 50 is roughly the same as the first embodiment. The difference is that the circuit board 40 of this embodiment is thinner. The combined upper circuit board 422, circuit board 40 and lower circuit board 422 protrude from the front end of the outer covering body 30 to form the connecting plate 55. The upper and lower circuit boards 422, 423 are each provided with a row of four first contacts 41, The two rows of first contacts 41 are the same connection interface and the circuit numbers are arranged in opposite directions. The two rows of first contacts 41 are electrically connected to the circuit board 40 through the conductive part 420 that runs through the connecting plate 55. The conductive part 420 is adopted. The electronic unit 4 is a storage unit, which is electrically connected to the circuit board 40 and covered by the outer covering body 30. It includes a memory 43 and a control circuit 45. The control circuit 45 controls the operation of the memory 43 of the electronic unit, and the two rows of first contacts 41 are electrically connected to the electronic unit 4 .

Please refer to Fig. 54, which is the twenty-ninth embodiment of the present invention, which is a USB2.0 standard flash drive, which is roughly the same as the twenty-eighth embodiment, and the difference is that the circuit board 40 of this implementation is the front section of the lower board A plastic board 37 and a lower circuit board 423 are superimposed on each other. The laminated circuit board 40, the plastic board 37 and the lower circuit board 422 protrude from the front end of the outer covering body 30 to form the connection board 55. In addition, the conductive part 420 It is drilled and then inserted into a terminal and welded.

Please refer to Fig. 55, which is the thirtieth embodiment of the present invention, which is a dual-interface flash drive, which is roughly the same as the twenty-ninth embodiment, the difference is that this embodiment is provided with two circuit boards 40 and an electronic unit 4, The front sections of the two circuit boards 40 are stacked with a plastic plate 37 and stretch out from the front end of the outer covering body 30 to form the connecting plate 55. The upper and lower surfaces of the connecting plate 55 are respectively provided with a row of first contacts 41. Contacts 41 are different connection interfaces. The electronic unit is a storage unit and is covered by the outer covering body 30. The electronic unit 4 includes a memory 43, a memory 44 and two control circuits 45. The two control circuits 45 respectively controls the operation of the memory 43, 44, wherein a circuit board 40 is provided with the memory 43 and a control circuit 45, and the memory 43 and a control circuit 45 are electrically connected to a row of first contacts 41 on it, Another circuit board 40 is provided with the memory 44 and another control circuit 45 , and the memory 44 and another control circuit 45 are electrically connected to a row of first contacts 41 thereon.

Please refer to Fig. 56 and Fig. 57, it is the thirty-first embodiment of the present invention, which is a USB2.0 standard electrical connecting wire, which is roughly the same as the eighteenth embodiment, the difference lies in the connection plate 55 of this embodiment. The boards are integrally formed with a protruding limit structure 50 to prevent the first contact 62 from short-circuiting. In addition, the first contact 62 with the circuit number 1 (transmitting VCC) on the two boards of the connecting board 55 is electrically connected to a Xiaoji respectively. The diode 46 is electrically connected to an electric wire of the electrical connection line. The Schottky diode 46 can prevent the current from flowing backwards, so as to ensure that the first contact 62 that transmits VCC will not be short-circuited, except that the Schottky diode is used. In addition to anti-short circuit, other anti-backflow electronic components or anti-short circuit electronic components or circuit safety protection components or safety circuit setting means can also be used to achieve the effect of circuit safety protection.

The front edge, two sides and the rear section of the connection plate 55 of this embodiment are sheathed with a metal shell 38, and the two sides of the metal shell 38 are respectively provided with a positioning groove 35, when the electrical connection wire is inserted into a female seat, it can be The positioning groove 35 is locked with the female seat.

Please refer to Fig. 58, which is the thirty-second embodiment of the present invention, which is a USB2.0 electrical connecting wire, which is roughly the same as the thirty-first embodiment, the difference is that the connecting board 55 of this embodiment is further set There is a reinforcing plate 59 made of metal, which separates the two rows of first terminals 60 and the two rows of first contacts 62 .

Please refer to Fig. 59, which is the thirty-third embodiment of the present invention, which is an electrical connecting wire of USB2.0 specification, which is roughly the same as the thirty-second embodiment, and a metal supplementary material is also arranged in the connecting plate 55. The strong plate 59 is different in that this embodiment does not have a metal shell.

The connecting board of the present invention is directly contacted and fixed on the outer covering body, which is different from the packaged electronic components on the display card fixed on the circuit board through pins, and the difference is specifically stated here.

Please refer to Fig. 60, Fig. 61, Fig. 62, and Fig. 63, which are the thirty-fourth embodiment of the present invention, which is a USB2.0 standard flash drive, which can be electrically connected to an electrical connection socket on both sides, It includes an outer covering body 30, a circuit board 40, a connection board 55, an electronic unit 4, a position-limiting structure 50 and a row of first terminals 60, wherein:

The front section of the circuit board 40 is provided with an insulating seat body 34 to form the connecting plate 55. The connecting plate 55 of this embodiment is a butt joint structure, and the insulating seat body 34 is provided with the row of four first terminals 60, each of the first terminals 60 A terminal 60 is provided with a first contact point 62 flatly attached to the upper surface of the connection board 55 and extends a pin 64 to be welded with the circuit board 55. The pin 64 is bent from the front end of the connection board 55 down to the circuit The top of the board 40 is welded by SMT, so that the area above the rear section of the circuit board 40 is not occupied, which is conducive to the utilization of the top of the rear section of the circuit board 40, and a row of four first contacts 41 of gold fingers are arranged under the front section of the circuit board 40 , the row of first contacts 41 form the connection interface on the lower surface of the connecting plate 55, the cross section of the insulating base 34 is in the shape of a ㄇ, so that a space 39 is formed between the insulating base 34 and the front section of the circuit board 40, such that the circuit board Electronic components 430 can still be arranged on the front section of 40, and the circuit board 40 is a thin plate, about 0.3mm to 0.5mm.

The two rows of first contacts 62 and 41 are both USB2.0 connection interfaces, which can respectively transmit signals such as VCC, USB D-, USB D+ and GND. The two rows of first contacts 41 are the same connection interface and the circuit numbers are mutually For the reverse arrangement, as shown in Figure 62, the circuit numbers of a row of first contacts 62 on the upper surface of the connection board 55 are a1, a2, a3, a4 from right to left, and one row of the lower surface of the connection board 55 The circuit numbers of the first row of contacts 41 are b4, b3, b2, b1 from right to left. In addition, the shape of the connecting plate 55 is symmetrical in front and back, so that the front and back sides can be aligned and positioned on an electrical connection socket.

The two rows of first contact points 62 and 41 with the same circuit numbers are electrically connected to form a group, that is, a1 and b1 are electrically connected, a2 and b2 are electrically connected, a3 and b3 are electrically connected, and a4 and b4 are electrically connected, wherein a1 and b1 are electrically connected. b1 is a power contact, and it must not cause a short circuit. Therefore, a1 and b1 are electrically connected to each other through a Schottky diode 46. The function of the Schottky diode 46 is mainly to prevent the reverse flow of current, so as to achieve the anti-short circuit effect .

The above-mentioned use of Schottky diode anti-short circuit is a kind of electronic anti-backflow or anti-short circuit safety protection method, but there are also many ways such as setting anti-backflow electronic components or anti-short circuit electronic components or circuit safety protection Components or safety circuit setting means to achieve the effect of circuit safety protection.

The outer covering body 30 and the connecting plate 55 are combined into a paired structure. The outer covering body 30 and the insulating seat body 34 are integrally injection molded by plastic. The outer covering body 30 covers the rear section of the circuit board 40. The outer covering body 30 The cross section is also in the shape of ㄇ, so that there is a space 39 between the outer covering body 30 and the rear section of the circuit board 40 .

The electronic unit 4 is a storage unit, which is electrically connected to the rear section of the circuit board 40 and covered by the outer covering body 30. It includes a memory and a control circuit. The memory can be but not limited to flash Memory (flash memory) or read-only memory (ROM), the capacity of the memory is not limited, the control circuit is to control the operation of the memory of the electronic unit, the two rows of first contacts 62, 41 are electrically connected to the Electronic unit 4.

In addition, this embodiment may further include a control means combined with the USB2.0 flash drive to perform a data storage and control program on the storage unit.

The limiting structure 50 is integrally formed with the insulating seat body 34, and the limiting structure 50 forms a convex rib in the front and rear directions on both sides of the two board surfaces of the connecting plate 55. The first contacts 62 , 41 on the surface protrude to protect the two rows of first contacts 41 .

The reinforcing plate 59 is made of metal and has a ㄈ shape in cross-section. It is located on both sides of the insulating base 34. The reinforcing plate 59 extends from the connecting plate 55 to the rear section of the circuit board 40 and is provided with a welding plate 591 and The circuit board 40 is welded and fixed.

In addition, in practice, the insulating base 34 can also be directly provided with a plurality of small-area welding plates, and the reinforcing effect can also be achieved by welding the welding plates to the circuit board.

With the above structure, this embodiment has the following advantages:

1. The space 39 is formed in the connection board 55 so that the electronic components 430 can still be arranged on the front section of the circuit board 40 .

2. The outer covering body 30 and the insulating base body 34 are integrally injection-molded with plastic, which is very easy to manufacture.

3. Simultaneously design the electronic anti-short circuit Schottky diode 46 and the mechanical anti-scratch and anti-short circuit limit structure 50, which can ensure the safety of the double-sided plug-in circuit.

The manufacturing method of the present embodiment comprises the following steps:

1. Provide a circuit board, one side of the circuit board is provided with two sets of serial circuits of the USB2.0 connection interface in reverse order, a set of contacts of the USB2.0 connection interface, anti-backflow or short-circuit prevention or other electronic circuits The circuit and contacts of the safety protection device, the circuit and contacts of an electronic unit, and the welding area of the reinforcement board, the two groups of serial circuits of the connection interface arranged in reverse order are electrically connected to the circuit of the electronic unit, and the circuit board On the other side, there is a set of USB2.0 connection interface, which is a golden finger;

2. Provide an insulating seat body, which is a plastic seat body and is provided with a USB2.0 connection interface with a terminal structure. The terminals are provided with pins, and a space is formed between the bottom of the insulating seat body and the circuit board. Electronic components can be arranged in the space. The insulating base body is provided with a reinforcement plate. The insulating base body extends the length of the base body integrally to form an outer covering body. The insulating base body is flush with the circuit so that the circuit can be completely covered. The area on the board where electronic components are drained;

3. Provide anti-backflow electronic components or anti-short circuit electronic components or Schottky diodes or other electronic circuit safety protection devices;

4. Provide an electronic unit, which is a storage unit, including a memory and a control circuit;

5. Provide welding materials to smear on the contacts of the circuit board and the welding area of the reinforcement board;

6. The anti-backflow electronic components or anti-short circuit electronic components or Schottky diodes or other electronic circuit safety protection devices, electronic units, and insulating bases are respectively arranged and placed on the contacts of the circuit board. fully cover the area of the circuit board where electronic components drain; and

7. Perform reflow soldering processing on the components respectively attached to the circuit board, and complete the processing process of the simple board-type double-sided connection interface electronic device.

In the above-mentioned manufacturing method, two sets of USB2, 0 connection interfaces of the circuit board are serially connected circuits, wherein the circuits of the circuit number 1 are respectively electrically connected to the one anti-backflow electronic component or the anti-short circuit electronic component or the Schottky diode or other electronic components. Type circuit safety protection device, in addition, the insulating base is provided with a short-circuit-proof and protruding two-group USB2.0 connection interface limit structure.

In addition, the electronic unit can be a wireless transceiver unit to form a wireless transceiver device, or can be a connecting wire to form a male electrical connection line, or can be a transfer circuit and an electrical connector to form a transfer electrical connector , or can be an expansion circuit and a group of electrical connection sockets to form an expansion socket, or can be a control unit to form an IC controller.

Related manufacturing methods of the present invention are also disclosed in other embodiments.

Please refer to FIG. 63A, the top and two side surfaces of the outer covering body 30 of the thirty-fourth embodiment and the two side surfaces of the insulating base body 34 can be provided with hollow holes 301, so that the outer covering body 30 and the insulating base body 34 can be heated Sealing on the circuit board 40 or reflow soldering board processing has air convection, and has better heat sealing effect or better reflow soldering board processing.

Please refer to FIG. 64, which is the thirty-fifth embodiment of the present invention, which is a USB2.0 flash drive, which is roughly the same as the thirty-fourth embodiment, the difference being that the circuit board 40 of this embodiment is thicker, About 0.8mm to 1.1mm.

Please refer to Fig. 65, which is the thirty-sixth embodiment of the present invention, which is a USB2.0 standard flash drive, which is roughly the same as the thirty-fourth embodiment, the difference lies in a row of first terminals 60 of this embodiment The pins 64 are bent from the rear end of the connecting board 55 down to the rear section of the circuit board and welded in SMT mode.

Please refer to Fig. 66, which is the thirty-seventh embodiment of the present invention, which is a USB2.0 standard flash drive, which is roughly the same as the thirty-sixth embodiment, the difference lies in a row of first terminals 60 of this embodiment The pin 64 is welded through the circuit board, and the outer covering body 30 is a sealing body, which covers the circuit board 40 in a sealing mode, and simultaneously connects the insulating seat body of the connection board 55 and the space of the circuit board 40 Filling up to increase strength is also a way of reinforcement.

Please refer to Fig. 67 and Fig. 68, which is the thirty-eighth embodiment of the present invention, which is a USB2.0 specification flash drive, which is roughly the same as the thirty-seventh embodiment, and the difference lies in the circuit board 40 of this embodiment A second circuit board 422 is superimposed on the front section to form the connecting plate 55. A row of first contacts 41 on the upper surface of the connecting plate is formed on the second circuit board and is a row of gold fingers. The lower plate of the connecting plate A row of first contacts 41 on the surface is formed under the front section of the circuit board 40 and is a row of gold fingers. In addition, the limiting structure 50 is two insulating seats, which respectively protrude from the upper and lower sides of the connecting board 55 and are on the two sides. Between circuit numbers 1 and 2 and between circuit numbers 3 and 4 of the first contact.

Please refer to Fig. 69, Fig. 70 and Fig. 71, it is the thirty-ninth embodiment of the present invention, which is a USB2. The insulating seat body of the connection board 55 and the outer covering body 30 are both sealed with glue, which covers the top of the circuit board 40 in a sealed way, and the front and rear ends of the row of first terminals 60 are all bent downwards to the pins 64. The upper surface of the circuit board is welded by SMT, and the position-limiting structure 50 is directly formed during sealing, and the position of the position-limiting structure 50 is the same as that of the thirty-eighth embodiment.

Please refer to Fig. 72, Fig. 73 and Fig. 74, which are the fortieth embodiment of the present invention, which is a USB2.0 specification flash drive, which is roughly the same as the thirty-seventh embodiment, the difference lies in the circuit of this embodiment The board 40 is a thick board, about 1.0 mm, and there is no space between the insulating seat body 37 of the connecting board 55 and the front section of the circuit board 40 .

Please refer to Fig. 75, Fig. 76 and Fig. 77, which are the forty-first embodiment of the present invention, which is a USB2. Two rows of first terminals 60 are embedded in the connecting plate 55 and injection molded. The outer covering body 30 is a sealing body, which covers the circuit board 40 in a sealing manner. In addition, a reinforcing plate is provided on both sides of the connecting plate 55 59 , the reinforcing plate 59 is made of metal and has a concave cross section, the reinforcing plate 59 extends from the connecting plate 55 to the circuit board 40 , and the reinforcing plate 59 and the circuit board 40 are clamped and fixed.

Please refer to Fig. 78, which is the forty-second embodiment of the present invention, which is a USB2.0 specification flash drive, which is roughly the same as the forty-first embodiment, the difference is that the second row of first terminals 60 of this implementation The pins 64 are soldered on the circuit board 40 .

Please refer to Figure 79, which is the forty-third embodiment of the present invention, which is a USB2.0 flash drive, which is roughly the same as the forty-first embodiment, the difference is that the connecting plate of this embodiment does not have a card slot The circuit board 40 is locked.

Please refer to FIG. 80 , which is the forty-fourth embodiment of the present invention, which is a USB2.0 standard flash drive, which is roughly the same as the forty-second embodiment, and the difference lies in the two rows of first terminals 60 of this embodiment. All the pins 64 are soldered to the bottom of the circuit board 40 .

Please refer to Fig. 81, Fig. 82 and Fig. 83, it is the forty-fifth embodiment of the present invention, which is a USB2. A plastic block 312 is respectively provided on both sides of the front section of the circuit board 40, and the two plastic blocks 312 are laminated with a second circuit board 424 to form the connection plate 55. A space is formed between the second circuit board 424 and the circuit board 40. And the two are aligned front and back, a row of first contacts 41 on one surface of the connection board 55 is formed outside the second circuit board 424 and is a row of gold fingers, and a row of first contacts on the other surface of the connection board 55 41 is formed outside the front section of the circuit board 40 and is a row of golden fingers.

The second circuit board 424 and the circuit board 40 are fixed together with the two plastic blocks 312 through the pin 425. In addition, the two plastic blocks 312 are integrally formed with the position-limiting structure 50, and the outer covering body 30 is a sealing body. The inner surfaces of the circuit board 40 and the second circuit board 425 are covered with glue.

Please refer to FIG. 84 and FIG. 85, which are the forty-sixth embodiment of the present invention, which is an electronic device of USB2.0 specification, which is roughly the same as the thirty-sixth embodiment, and the difference lies in the outer covering body 30 of this embodiment. It is a plastic box with a height greater than that of the connecting plate 55, so that the circuit board 40 is in the middle of the outer covering body 30, and both sides of the circuit board 40 and the outer covering body 30 have enough space for disposing related electronic components.

Please refer to Fig. 86, which is the forty-seventh embodiment of the present invention, which is an electronic device of USB2.0 specification, which is roughly the same as the thirtieth embodiment, the difference is that the outer covering body 30 of this embodiment is a higher height The connecting plate 55 is a large plastic box, and the two circuit boards 40 are thin plates of about 0.3mm, so that the two circuit boards 40 are in the middle of the outer covering body 30, and there is enough space on both sides of the two circuit boards 40 to configure related Electronic components that reduce the length of the entire electronic device.

Please refer to Fig. 87 and Fig. 88, it is the forty-eighth embodiment of the present invention, which is a mini USB2.0 electronic device, which is roughly the same as the thirty-fourth embodiment, the difference lies in the connecting board of this embodiment 55 is a butt joint structure, the butt joint structure is a circuit board 40 combined with a plastic insulating seat body 34, the insulating seat body is provided with a row of first terminals 60, and the butt joint structure is a row of first contact points 62 on the board surface. Formed on the row of first terminals 60, the extension pins of the row of first terminals 60 are electrically connected to the circuit board 40, and a row of first contacts 41 on the other board surface of the docking structure are formed under the circuit board 40 and It is a row of gold fingers, and there is a space between the insulating base body 34 and the circuit board 40 , the electronic unit 4 is arranged in the connection board 55 and is electrically connected to the circuit board 40 .

The electronic unit 4 in the above-mentioned thirty-fourth embodiment to the forty-eighth embodiment may be a storage unit to form a flash drive, or may be a wireless transceiver unit to form a wireless transceiver device, or may be a connecting wire It can form an electrical connecting line male, or it can be a switching circuit and an electrical connector to form a switching electrical connector, or it can be an expansion circuit and a set of electrical connection sockets to form an expansion socket, or it can be a control The unit becomes an IC controller.

In the manufacturing method described in the thirty-fourth embodiment, two groups of the circuit board are arranged reversely in sequence, behind the serial circuit and contacts of the USB2.0 connection interface, there are another two groups reversely arranged in sequence. The serial connection circuit and welding pads of the arranged connection interface; the insulating base body is provided with another two sets of USB3.0 connection interfaces with a spring terminal structure, the spring terminals are provided with pins, and the USB3. The connection interface is behind; the circuit board is provided with a hollow slot for the elastic terminal connection interface to bounce; thus a USB3.0 standard electronic product can be manufactured.

In addition, in manufacturing, the insulating base body can also be directly equipped with a plurality of small-area welding plates, and the reinforcing effect can also be achieved by welding the welding plates with the circuit board, and the insulating base body can also be separated to extend the length of the base body And an outer covering body is formed to completely cover the area where the electronic components are discharged on the circuit board.

Please refer to Fig. 89 and Fig. 90, it is the forty-ninth embodiment of the present invention, it is a USB2. The second row of first terminals 60 is molded by plastic injection molding in an embedded manner. A reinforcing plate 59 is provided on both sides of the connecting plate 55. The reinforcing plate 59 is made of metal and has a cross-sectional shape. font, the reinforcing plate 59 extends from the connecting plate 55 to the circuit board 40, and the reinforcing plate 59 is clipped and fixed with the circuit board 40. The difference in this implementation is that there is no sealant covering the circuit board 40 and The electronic unit 4 is covered.

In addition, the two rows of first contacts 62 and 41 are both USB2.0 connection interfaces, which can respectively transmit signals such as VCC, USB D-, USBD+ and GND. The two rows of first contacts 41 are the same connection interface and the circuit number They are mutually arranged in opposite directions, as shown in Figure 62, the circuit numbers of a row of first contacts 62 on the upper surface of the connecting plate 55 are a1, a2, a3, a4 from right to left, and the circuit numbers of the first contacts 62 on the lower surface of the connecting plate 55 are The circuit numbers of a row of first contacts 41 are b4, b3, b2, b1 from right to left. In addition, the shape of the connecting plate 55 is symmetrical in front and back, so that the front and back sides can be aligned and positioned on an electrical connection socket.

The two rows of first contact points 62 and 41 with the same circuit numbers are electrically connected to form a group, that is, a1 and b1 are electrically connected, a2 and b2 are electrically connected, a3 and b3 are electrically connected, and a4 and b4 are electrically connected, wherein a1 and b1 are electrically connected. b1 is a power contact, and it must not cause a short circuit. Therefore, a1 and b1 are electrically connected to each other through a Schottky diode 46. The function of the Schottky diode 46 is mainly to prevent the reverse flow of current, so as to achieve the anti-short circuit effect .

The above-mentioned use of Schottky diode anti-short circuit is a kind of electronic anti-backflow or anti-short circuit safety protection method, but there are also many ways such as setting anti-backflow electronic components or anti-short circuit electronic components or circuit safety protection Components or safety circuit setting means to achieve the effect of circuit safety protection.

Please refer to Figure 91, which is the fiftieth embodiment of the present invention, which is roughly the same as the forty-ninth embodiment, the difference is that the section of the reinforcing plate 59 in this embodiment is shape.

Please refer to Fig. 92, which is the fifty-first embodiment of the present invention, which is roughly the same as the forty-ninth embodiment, the difference is that the section of the reinforcing plate 59 in this embodiment is shape.

Please refer to Figure 93, which is the fifty-second embodiment of the present invention, which is roughly the same as the forty-ninth embodiment, the difference is that the cross-section of the reinforcing plate 59 in this embodiment also has a shape, but the circuit board 40 is not engaged.

Please refer to Fig. 94 and Fig. 95, it is the fifty-third embodiment of the present invention, which is a USB2.0 standard flash drive, which is roughly the same as the forty-ninth embodiment, the difference of this implementation is the reinforcing plate 59 The connecting plate 55 is molded integrally with plastic, and the reinforcing plate 59 is integrally connected to the two sides of the rear end of the connecting plate 55 and extends backward.

In addition, the cross-section of the reinforcing plate 59 can be in other shapes, so as to fit or engage or bond the two sides of the circuit board.

Please refer to Fig. 96 and Fig. 97, it is the fifty-fourth embodiment of the present invention, which is a USB2.0 specification flash drive, which is roughly the same as the forty-ninth embodiment, the difference of this implementation is that the reinforcing structure is The socket groove 52 is provided on the connection plate 55 , the front section of the circuit board 40 is socketed and locked in the socket groove 52 , and the socket groove 52 is located in the middle of the thickness of the connection plate 55 .

Please refer to Fig. 98 and Fig. 99, which is the fifty-fifth embodiment of the present invention, which is a USB2.0 specification flash drive, which is roughly the same as the fortieth embodiment and the forty-ninth embodiment, and this implementation is also The connection plate 55 includes an insulating base body 34 and the front section of the circuit board 40, the insulating base body 34 is arranged on the front section of the circuit board 40, the row of first contacts 62 are arranged on the insulating base body 34, the A row of first contacts 62 on the insulating base body is formed in a row of first terminals 60, and the first terminals 60 are provided with pins 64 to be electrically connected or welded to the circuit board 40, and the front section of the circuit board 40 is provided with a The row of first contacts 41, the row of first contacts 41 of the circuit board are circuit contacts, a reinforcing plate 59 is provided on both sides of the insulating base body 34, the reinforcing plate 59 and a row of first terminals 60 are connected to The insulating seat body 34 is injection molded by embedding plastic, and the reinforcing plate 59 is made of metal and has a cross-section Shape, the reinforcing plate 59 extends to the rear of the circuit board 40 and welds the circuit board 40 , the difference in this embodiment is that there is no sealing body covering the circuit board 40 and the electronic unit 4 temporarily.

Please refer to Figure 100, which is the fifty-sixth embodiment of the present invention, which is roughly the same as the fifty-fifth embodiment, the difference is that the section of the reinforcing plate 59 in this implementation is shape.

Please refer to Figure 101, which is the fifty-seventh embodiment of the present invention, which is roughly the same as the fifty-fifth embodiment, the difference is that the section of the reinforcing plate 59 in this embodiment is shape.

Please refer to Figure 102, which is the fifty-eighth embodiment of the present invention, which is roughly the same as the fifty-fifth embodiment, the difference is that the section of the reinforcing plate 59 in this embodiment is shape.

Please refer to Figure 103, which is the fifty-ninth embodiment of the present invention, which is roughly the same as the fifty-fifth embodiment, the difference is that the section of the reinforcing plate 59 in this embodiment is shape.

Please refer to Fig. 104, Fig. 105, Fig. 106 and Fig. 107, which are the sixtieth embodiment of the present invention, which is a USB2.0 flash drive, which is roughly the same as the thirty-ninth embodiment, the difference of this implementation is A circuit board 40 and a second circuit board 424 are provided. A row of four first contact points 41 are arranged on the front section below the circuit board 40. An electronic unit 4 is first welded on the circuit board 40, and two sides are welded with two supplementary parts extending forward and backward. After the strong plate 59 and the front section are welded with four ㄈ-shaped conductive sheets 593, an outer covering body 30 is formed to cover the circuit board 40 and the electronic unit 4 in a sealing mode, and the two reinforcing plates 59 and the four The upper end of a conductive sheet 593 is exposed, as shown in Figure 107, a row of four first contact points 41 is provided above the second circuit board 424 and welding pads corresponding to the two reinforcing plates 59 and the four conductive sheets 593 are provided below. The upper row of four first contacts 41 are arranged in reverse and are electrically connected to the lower pads through the conductive part 420. The second circuit board 424 is superimposed on the front section of the outer covering body 30 and the lower pads are welded. A connection plate 55 is formed on the upper ends of the two reinforcing plates 59 and the four conductive sheets 593, so that a row of first contacts with circuit numbers arranged in reverse order are respectively formed on the top and bottom of the connection plate 55.

The manufacturing method of this embodiment includes the following steps:

1. A circuit board 40 is provided, the circuit board 40 is provided with 2 sets of conductive contacts, a series connection circuit in which the 2 sets of conductive contacts are arranged in reverse order, a circuit for preventing backflow or short circuit or other electronic circuit safety protection devices and Contacts, the circuit and contacts of an electronic unit 4, and the contacts of the reinforcing plate 59, the series circuit of the two groups of conductive contacts arranged in reverse order is electrically connected with the circuit of the electronic unit 4, and the two groups of conductive contacts are respectively set On different sides of the circuit board, a group of conductive contacts on the other side of the front section of the circuit board 40 relative to the contacts of the electronic unit 4 is a group of connection interfaces, that is, a row of four first contacts 41, which are USB2. 0 connection interface;

2. Provide an insulator, the insulator is a second circuit board 424, on which is provided the other set of connection interfaces, that is, a row of first contacts 41, which are the connection interfaces of USB2.0;

3. Provide anti-backflow electronic components or anti-short circuit electronic components or Schottky diode 46 or other electronic circuit safety protection devices;

4. Provide an electronic unit 4, an additional set of conductive contacts and a reinforcing plate 59, the additional set of conductive contacts is a set of conductive sheets 593;

5. Provide welding material to smear on the contacts of the circuit board 40;

6. The anti-backflow electronic components or anti-short circuit electronic components or Schottky diodes or other electronic circuit safety protection devices, the electronic unit 4, and the second reinforcing plate 59 are respectively arranged and pasted on the corresponding contacts of the circuit board 40 , the group of conductive sheets 593 is attached to a group of conductive contacts on the surface of the circuit board;

7. Perform reflow soldering processing on the components respectively attached to the circuit board 40;

8. Encapsulate the circuit board 40 welded with the above elements to form an outer covering body 30, and make and make the circuit board 40 and the outer covering body 30 combine into a package body, and make the group of conductive sheets 593 and The second reinforcing plate 59 exposes the upper surface of the outer covering body 30, and a group of connection interfaces on the other side of the circuit board, that is, a row of four first contacts 41 exposes the circuit board side of the package;

9. Provide a set of conductive sheets 593 and reinforcing plates 59 for welding materials to be applied on the upper surface of the outer covering; and

10. Lay the second circuit board 424 on the front section of the upper surface of the outer covering body 30, the welding points of a group of connection interfaces of the second circuit board 424 are connected to the group of conductive sheets 593 and the second circuit board 424 is provided with The welding points are connected to the two reinforcing plates 59, and finally the reflow welding process is performed.

The above-mentioned reinforcing structure uses the reinforcing plate 59 , but a welding plate can also be used, and the second circuit board 424 can be combined with the outer covering body 30 in an ultrasonic or high-frequency manner.

Please refer to FIG. 108 , which is the sixty-first embodiment of the present invention, which is roughly the same as the sixtieth embodiment, the difference being that the outer covering body 30 of this embodiment further covers the two sides of the circuit board 40 .

Please refer to Figure 109, which is the sixty-second embodiment of the present invention, which is roughly the same as the sixtieth embodiment, the difference is that an insulating seat 34 is stacked on the outer covering body 30 of this embodiment, and the insulating seat 34 The row of first contacts 62 is provided on the top, and the row of first contacts 62 is formed on a row of first terminals 60. The insulating base 34 and the row of first terminals 60 are formed by embedded plastic injection molding. The first terminal 60 is provided with pins welded to the upper ends of the four conductive sheets on the front section of the outer covering body 30 , and the insulating seat 34 can be combined with the outer covering body 30 in an ultrasonic or high frequency manner.

Please refer to Fig. 110, which is the sixty-third embodiment of the present invention, which is roughly the same as the thirty-fourth embodiment, the difference is that the outer covering body 30 and the insulating seat body 34 of this embodiment are provided separately rather than integrally formed. The outer covering body 30 and the insulating base body 34 can be combined on the circuit board 40 by means of ultrasonic wave or high frequency wave.

Please refer to Fig. 111, Fig. 112, Fig. 113 and Fig. 114, it is the sixty-fourth embodiment of the present invention, which is a USB2. A circuit board 40, two insulating bases 34, 34', an electronic unit 4, and an outer covering 30, wherein:

The upper and lower sides of the circuit board 40 are provided with a set of conductive contacts 430 and two soldering areas 432 are respectively provided at the front end, and two soldering areas 434 extending forward and backward are respectively provided on the lower side of the circuit board 40 .

Each of the two insulating bases 34, 34' is provided with a set of conductive contacts, and the set of conductive contacts is a row of four first contacts 62, which are the connection interface of USB2.0. The two rows of first contacts 62 are formed In the second row of first terminals 60, the two insulating bases 34, 34' and the two rows of first terminals 60 are respectively embedded in plastic injection molding, and the two rows of first terminals 60 are provided with pins 64 respectively welded to A group of conductive contacts 430 on the upper and lower sides of the circuit board 40, the front ends 66 of the two rows of first terminals 60 are welded to the welding area 432 on the upper and lower sides of the circuit board 40, and the front ends of the two insulating bases 34, 34' correspond to the welding areas 432 is respectively provided with two gaps 342, by which the gap 342 can be repaired and welded. In addition, the insulating base body 34 is relatively large, and its two sides are roughly flush with the circuit board 40, and its two sides are respectively provided with a reinforcing plate extending back and forth. 59 , the reinforcing plate 59 is welded to the welding area 434 .

The electronic unit 4 is a storage unit, which includes related electronic components and control circuits. The electronic unit 4 is electrically connected to the circuit board 40 .

The outer cover 30 is an insulating sealing body, which covers the side of the circuit board 40 welded with the electronic unit 4 and the insulating base 34' with sealing glue, so that only a row of first contacts 62 on the insulating base 34' The upper surface of the outer covering body 30 is exposed.

With the above structure, the upper and lower sides of the front section of the circuit board 40 are respectively provided with an insulating base to form the connection board 55 , and each of the two sides of the connection board 55 has a set of connection interfaces, that is, the row of first contacts 62 .

The manufacturing method of this embodiment includes the following steps:

1. Provide a circuit board 40, the circuit board is provided with 2 sets of conductive contacts 430, a series connection circuit in which the 2 sets of conductive contacts are arranged in reverse order, a circuit for preventing backflow or short circuit or other electronic circuit safety protection devices and The contact, the circuit of an electronic unit and the soldering area 434 of the contact and the reinforcing plate 59, the series connection circuit is electrically connected with the circuit of the electronic unit, and the two groups of conductive contacts 430 are respectively arranged on different surfaces of the circuit board 40;

2. An insulator is provided, which is an insulating base body 34, on which a set of USB2.0 connection interfaces and a reinforcing plate 59 are provided, which are a row of four first contacts 62, and the row of first contacts 62 It is formed on a row of first terminals 60, and the insulating base body 34' and the row of first terminals 60 are molded by embedded plastic injection molding;

3. Provide anti-backflow electronic components or anti-short circuit electronic components or Schottky diodes or other electronic circuit safety protection devices;

4. Provide an electronic unit 4 and an additional set of conductive contacts. The additional set of conductive contacts is located on an insulating base 34', which is a set of USB2.0 connection interfaces, which are 4 in a row The first contact 62, the row of first contacts 62 is formed on a row of first terminals 60, the insulating base 34' and the row of first terminals 60 are embedded in plastic injection molding;

5. Provide welding material to smear the contact and welding area 432 on one side of the circuit board 40;

6. The anti-backflow electronic components or anti-short circuit electronic components or Schottky diodes or other electronic circuit safety protection devices and electronic units 4 are respectively arranged and pasted on the corresponding contacts on the circuit board 40, and the additional set Conductive contacts, that is, the pins 64 of a row of first terminals 60 of the insulating base 34' are attached to a group of conductive contacts 430 on the surface of the circuit board, wherein the front ends 66 of the two first terminals 60 are connected to the welding area 432;

7. Perform reflow soldering processing on the components respectively attached to the circuit board 40;

8. Encapsulate one side of the circuit board welded with the above components to form an outer cover 30, and combine the circuit board 40 and the outer cover 30 into a package, and make the additional set of conductive contacts, that is, the The first contact 62 of a row of first terminals 60 exposes the upper surface of the outer cover 30 of the package, and a group of conductive contacts on the other side of the circuit board exposes one side of the circuit board of the package;

9. Provide welding material to apply a group of conductive contacts 430, welding area 432 and welding area 434 of the reinforcing plate on one side of the circuit board; and

10. The insulating base body 34 is stacked on the front section of the circuit board 40 of the package, and the pins 64 of a row of first terminals 60 of the insulating base body 34 are connected to the group of conductive contacts 430 coated with solder material, The front ends 66 of the two first terminals 60 are connected to the soldering area 432 , and the reinforcing plate 59 is connected to the soldering area 434 for reflow soldering process.

The insulating seat on the front section of the circuit board 40 of this embodiment is made of a smaller insulating seat 34' sealed with glue to form an insulating seat flush with both sides of the circuit board 40. The insulating seat 34' is mainly used for first Combining the row of first terminals 60 achieves ease of manufacture, but the row of first terminals 60 can also be directly welded on the circuit board 40 and sealed with glue to directly form an insulating base.

The above-mentioned reinforcing structure uses a reinforcing plate 59 , but a welding plate can also be used, and the insulating base 34 can also be combined with the circuit board 40 in an ultrasonic or high-frequency manner.

Please refer to Fig. 115 and Fig. 116, it is the sixty-fifth embodiment of the present invention, which is a USB2.0 specification flash drive, which is roughly the same as the sixty-fourth embodiment, the difference lies in the insulating base 34 of this implementation Both sides are integrally provided with a limiting structure 50 protruding from the group of connecting interfaces and a group of conductive contacts corresponding to the group of connecting interfaces, that is, the limiting structure 50 protrudes from a row of first contacts 62 on both sides of the connecting plate 55 .

The electronic unit 4 in the above-mentioned forty-ninth embodiment to the sixty-fifth embodiment can be a storage unit to form a flash drive, or can be a wireless transceiver unit to form a wireless transceiver device, or can be a connecting wire It can form an electrical connecting line male, or it can be a switching circuit and an electrical connector to form a switching electrical connector, or it can be an expansion circuit and a set of electrical connection sockets to form an expansion socket, or it can be a control The unit becomes an IC controller.

The specific embodiment proposed in the detailed description of the preferred embodiment is only for the ease of explaining the technical content of the present invention, and the present invention is not limited to this embodiment in a narrow sense, without departing from the spirit of the present invention and the following claims In some cases, various changes can be made.

List of main symbol names

Pen drive 1 Pen drive 3

Plastic base 10 circuit board 15 contacts 16

Electric connection socket 20 connection groove 21 tongue 22

Contact 23 metal shell 25 shrapnel 24

Cover body 30 lower seat 31 upper cover 32

Housing chamber 33 insulating seat body 34 positioning groove 35

Positioning shrapnel 36 Plastic plate 37 Metal shell 38

Space 39 plastic block 312 hollow hole 301

Electronic unit 4 circuit board 40 first contact 41

Through hole 42 memory 43

Memory 44 Control circuit 45 Schottky diode 46

IC control chip 47 contact 48 circuit 49

Connection groove 410 First contact point 411 Second contact point 412

Tongue 413 Contact 417 Contact 418

Electric wire 419 Conductive part 420 Upper circuit board 422

Lower circuit board 423 Second circuit board 424 Pin 425

Conductive contact 430 Welding area 432 Welding area 434

Card slot 52 Limiting structure 50 Connecting plate 55

Perforation 56 Concavity 57 Docking configuration 58

Reinforcing plate 59 Welding plate 591 Conductive sheet 593

first terminal 60 extension 61 first contact 62

First contact 63 Pin 64 Front end 66

Second terminal 70 Extension 71 Second contact point 72

Detection Structure 80 Movable Terminal 81 Movable Terminal 82

Fixed terminal 83 bump 85 switch device 90

Slide button 91 Slide groove 92 Conductive part 93

Claims (64)

1. A positive and negative double-sided electrical connection structure, which includes: A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, the two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the The insulator of the butt joint structure, at least one pair of contacts with the same circuit number in the two rows of contacts are arranged in opposite directions. A locking structure made of metal is provided on the side, and when the docking structure is docked with the docking electrical connector, the locking structure can be locked with the docking electrical connector. 2. A positive and negative double-sided electrical connection structure, which includes: A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, the two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the An insulator with a butt joint structure, at least one pair of contacts with the same circuit number in the two rows of contacts are arranged in opposite directions, and the shape of the butt joint structure can be positioned on a butt joint electrical connector; and A metal plate is arranged in the middle of the thickness of the butt joint structure, and the metal plate separates the two rows of terminals. 3. A positive and negative double-sided electrical connection structure, which includes: a docking configuration, the docking configuration An insulator is provided, and the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, and among the two rows of contacts, at least one pair of contacts with the same circuit number are arranged in opposite directions and at least one pair of the same circuit The contacts of the docking structure are electrically connected. The shape of the docking structure can be positioned on a pair of docking electrical connectors. The lower insulating base body is provided with the lower plate surface, the two rows of contacts are formed on the second row of terminals, the two rows of terminals are respectively provided with pins, and the upper and lower insulating base bodies are respectively fixed with the row of terminals. 4. A positive and negative double-sided electrical connection structure, which includes: A circuit board, the circuit board is provided with two sets of conductive contacts, and the two sets of conductive contacts are respectively arranged on different sides of the circuit board; and Upper and lower insulating bases, the upper and lower insulating bases are respectively arranged on two sides of the circuit board to form two upper and lower board surfaces of a connecting board, each of the two board surfaces of the connecting board is provided with at least one row of contacts, the two boards Among them, at least one pair of contacts with the same circuit number are arranged in opposite directions. The shape of the connecting plate can be oppositely facing and positioned on a pair of electrical connectors. The two rows of contacts are formed on the two rows of terminals. Each of the lower insulating bases is fixed with the row of terminals, and the two rows of terminals are respectively electrically connected or welded to two sets of conductive contacts of the circuit board. 5. A positive and negative double-sided electrical connection structure, which includes: A connection board, which is an insulator, with at least one row of contacts on each of the two board surfaces of the connection board, of which at least one pair of contacts with the same circuit number are arranged in opposite directions, and the shape of the connection board can be reversed The double-sided butt joint is positioned on a butt joint electrical connector, the two rows of contacts are formed on the second row of terminals, the two rows of terminals are embedded and fixed on the connecting plate, and at least one pair of the same circuit is connected to the two rows of terminals. The boards are electrically connected in series to form the same circuit. 6. A positive and negative double-sided electrical connection structure, which includes: A circuit board, the circuit board is provided with two sets of conductive contacts, and at least one pair of conductive contacts of the same circuit in the two sets of conductive contacts forms an electrically connected circuit; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, each of the upper and lower boards is provided with at least one row of contacts, and at least one pair of contacts with the same circuit number in the two rows of contacts are opposite to each other Arranged, the shape of the docking structure can be positioned on a pair of docking electrical connectors. The two rows of contacts are formed on the second row of terminals. Each terminal is provided with a row of pins which are respectively electrically connected to two sets of conductive contacts of the circuit board. 7. A positive and negative double-sided electrical connection structure, which includes: A circuit board, the circuit board is provided with 2 sets of conductive contacts, and at least one pair of conductive contacts of the same circuit in the 2 sets of conductive contacts forms an electrically connected circuit; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least two rows of contacts at the front and back, and at least one pair of contacts with the same circuit number in the two rows of rear contacts are connected to each other. For the reverse arrangement, the shape of the docking structure can be positioned on a pair of docking electrical connectors, and the two rear contacts are formed on the second row of terminals, and the second row of terminals is positioned on the insulator of the docking structure. 8. A positive and negative double-sided electrical connection structure, which includes: a circuit board, the circuit board is provided with two sets of conductive contacts; A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, of which at least one pair of contacts with the same circuit number are opposite to each other Arranged, the shape of the docking structure can be positioned on a pair of electrical connectors, the two rows of contacts are formed on the two rows of terminals, the two rows of terminals are positioned on the insulator of the docking structure, and the two rows of terminals are respectively set a row of pins electrically connected to two sets of conductive contacts of the circuit board; and A reinforcing structure, which is provided on the docking structure, so as to enhance the strength of the docking structure. 9. A positive and negative double-sided electrical connection structure, which includes: a circuit board provided with two sets of conductive contacts; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, of which at least one pair of contacts with the same circuit number are opposite to each other Arranged, the shape of the docking structure can be positioned on a pair of electrical connectors, the two rows of contacts are formed on the two rows of terminals, the two rows of terminals are positioned on the insulator of the docking structure, and the two rows of terminals are respectively set There are at least one row of pins electrically connected to two sets of conductive contacts of the circuit board; It is characterized in that the rear section of the insulator of the butt joint structure is provided with a socket slot, and the front section of the circuit board is socketed and locked in the socket slot. 10. A positive and negative double-sided electrical connection structure, which includes: A butt joint structure, the butt joint structure is provided with an insulator, and the insulator is provided with two upper and lower board surfaces, and each of the upper and lower two board surfaces is flatly provided with a row of at least nine contacts, and each of the two rows of contacts is provided with a plurality of longer contacts and multiple contacts. A relatively short contact, at least one pair of contacts with the same circuit number in the two rows of contacts are arranged in opposite directions, and the shape of the butt joint structure can be positioned on a pair of butt electrical connectors. 11. A positive and negative double-sided electrical connection structure, comprising: A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with two upper and lower boards, the upper and lower boards are respectively flatly provided with contacts arranged at the front and back, the contacts in the front are a row of contacts, and at least one of the two rows of contacts A pair of contacts with the same circuit number are arranged opposite to each other, and the shape of the docking structure can be positioned on a pair of docking electrical connectors. 12. A positive and negative double-sided electrical connection structure, comprising: A circuit board, the circuit board is provided with two sets of conductive contacts, and at least one pair of conductive contacts of the two sets of conductive contacts is electrically connected to a separate signal transmission circuit; an electronic unit electrically connected to the circuit board and electrically connected to two sets of conductive contacts of the circuit board; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, of which at least one pair of contacts with the same circuit number are opposite to each other Arranged, the shape of the docking structure can be positioned on a pair of docking electrical connectors, the two rows of contacts are formed on the two rows of terminals, and the two rows of terminals are positioned in the docking structure. A row of pins is respectively electrically connected to two groups of conductive contacts of the circuit board. 13. A positive and negative double-sided electrical connection structure, comprising: a circuit board, the circuit board is provided with two sets of conductive contacts; An electronic unit, the electronic unit includes a control circuit, the control circuit is provided with at least one IC control chip, the electronic unit is electrically connected to the circuit board; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, and its shape can be positioned on a pair of docking electrical connectors. In the two rows of contacts, at least one pair of contacts with the same circuit number are arranged in opposite directions. The two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the insulator of the butt joint structure. The rows of pins are respectively electrically connected to two groups of conductive contacts of the circuit board, and the two rows of contacts are electrically connected to the electronic unit through the circuit of the circuit board. 14. A positive and negative double-sided electrical connection structure, comprising: A circuit board, the circuit board is provided with two sets of conductive contacts, and each of the two sets of conductive contacts is electrically connected to at least one pair of separate signal transmission circuits; An electronic unit, the electronic unit includes a control circuit, the control circuit is provided with at least one IC control chip, the electronic unit is electrically connected to the circuit board, and the at least one IC control chip is electrically connected to at least two pairs of individual signal transmission circuit; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contact points, and its shape can be positioned on a pair of docking electrical connectors, wherein At least one pair of contacts with the same circuit number are arranged oppositely to each other. The two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the insulator of the butt joint structure. Two sets of conductive contacts of the circuit board are connected, and the two rows of contacts are electrically connected to the electronic unit and the at least one IC control chip through the circuit of the circuit board. 15. A positive and negative double-sided electrical connection structure, comprising: A circuit board, the circuit board is provided with two sets of conductive contacts, and at least one pair of conductive contacts in the two sets of conductive contacts is electrically connected to a safety circuit setting means; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, and its shape can be positioned on a pair of docking electrical connectors. In the two rows of contacts, at least one pair of contacts with the same circuit number are arranged in opposite directions. The two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the insulator of the butt joint structure. The row pins are respectively electrically connected to two groups of conductive contacts of the circuit board. 16. A positive and negative double-sided electrical connection structure, comprising: a circuit board, the circuit board is provided with two sets of conductive contacts; an electronic unit electrically connected to the circuit board and electrically connected to two sets of conductive contacts of the circuit board; and A connection plate, which is an insulator, and the upper and lower surfaces of the connection plate are respectively provided with contacts with a low front and a high rear. The contacts in the front are a row of contacts, and the row of contacts is a flat connection with at least two sides longer Interface, among the two rows of contacts, at least one pair of contacts with the same circuit number are arranged in opposite directions. , the two rows of terminals are positioned on the connection board, and each of the two rows of terminals is provided with at least one row of pins respectively electrically connected to two sets of conductive contacts of the circuit board. 17. A positive and negative double-sided electrical connection structure, comprising: a circuit board, the circuit board is provided with two sets of conductive contacts; an electronic unit electrically connected to the circuit board and electrically connected to two sets of conductive contacts of the circuit board; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and the upper and lower boards are respectively provided with two rows of contacts, the rear row of contacts is higher than the front row of contacts, and the two rear rows of contacts are At least one pair of contacts with the same circuit number are arranged in opposite directions. The shape of the docking structure can be positioned on a pair of docking electrical connectors. The two rear contacts are formed on the second row of terminals. The second row of terminals is positioned The insulator of the docking structure is provided with at least one row of pins. 18. A positive and negative double-sided electrical connection structure, comprising: A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and the upper and lower boards are respectively provided with two rows of contacts at the front and back, and at least one pair of contacts with the same circuit number in the two rear rows of contacts are opposite to each other. The butt joint structure is provided with a row of concave surfaces and a row of perforations on the upper and lower board surfaces, and the front and rear two rows of contacts correspond to a row of concave surfaces and a row of perforation holes respectively. The shape of the butt joint structure can be positioned on both sides In a mating electrical connector, the two rear contacts are formed on two rows of terminals positioned on the insulator of the mating structure. 19. A positive and negative double-sided electrical connection structure, comprising: a circuit board, the circuit board is provided with two sets of conductive contacts; an electronic unit, the electronic unit includes a control circuit, the control circuit includes safety circuit setting means, the electronic unit is electrically connected to the circuit board; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, and its shape can be positioned on a pair of docking electrical connectors. In the two rows of contacts, at least one pair of contacts with the same circuit number are arranged in opposite directions. The two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the insulator of the butt joint structure. A row of pins is respectively electrically connected to two sets of conductive contacts of the circuit board, and the two rows of contacts are electrically connected to the electronic unit through the circuit board; It is characterized in that it further includes a control means combined with the front and back double-sided electric connector to control the electronic unit. 20. A positive and negative double-sided electrical connection structure, comprising: a circuit board, the circuit board is provided with two sets of conductive contacts; an electronic unit electrically connected to the circuit board; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, and its shape can be positioned on a pair of docking electrical connectors. In the two rows of contacts, at least one pair of contacts with the same circuit number are arranged in opposite directions. The two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the insulator of the butt joint structure. A row of pins is respectively electrically connected to two sets of conductive contacts of the circuit board, and the two rows of contacts are electrically connected to the electronic unit through the circuit of the circuit board; It is characterized in that the electronic unit includes a control circuit, and the control circuit can control the electronic unit to adopt forward and reverse corresponding circuit signal transmission. 21. A positive and negative double-sided electrical connection structure, comprising: A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with a connection groove, the front end of the connection groove is an insertion port and is provided with a top surface and a bottom surface, the top surface and the bottom surface are respectively provided with a connection interface, and the two connection interfaces are respectively There is at least one row of contacts, each of the at least one row of contacts of the two connection interfaces is formed on at least one row of terminals, the at least two rows of terminals are fixed to the insulator, and at least one pair of contacts of the same circuit number in the two connection interfaces are opposite to each other Arranged in the opposite direction, the shape of the docking structure can be positioned on a pair of docking electrical connectors; at least one row of welding pads, which are arranged behind the insulator of the butt joint structure, and the two connection interfaces are electrically connected to the at least one row of welding pads; and An electronic unit, the electronic unit is electrically connected to the at least one row of pads. 22. A positive and negative double-sided electrical connection structure, comprising: A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with a connection groove, the front end of the connection groove is an insertion port and is provided with a top surface and a bottom surface, the top surface and the bottom surface are respectively provided with a connection interface, and the two connection interfaces are respectively There is at least one row of contacts, each of the at least one row of contacts of the two connection interfaces is formed on at least one row of terminals, the at least two rows of terminals are fixed to the insulator, and at least one pair of contacts of the same circuit number in the two connection interfaces are opposite to each other Arranged in the opposite direction, the shape of the docking structure can be positioned on an electrical connection base with both front and back sides. At least one row of contacts on each side is electrically connected to the two connection interfaces. 23. A positive and negative double-sided electrical connection structure, comprising: a circuit board, the circuit board is provided with two sets of conductive contacts; an electronic unit, the electronic unit includes a control circuit, the control circuit includes safety circuit setting means, the electronic unit is electrically connected to the circuit board; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, and each of the upper and lower boards is provided with at least one row of contacts, and its shape can be positioned on a pair of docking electrical connectors. In the two rows of contacts, at least one pair of contacts with the same circuit number are arranged in opposite directions. The two rows of contacts are formed on two rows of terminals, and the two rows of terminals are positioned on the insulator of the butt joint structure. A row of pins is respectively electrically connected to two sets of conductive contacts of the circuit board, and the two rows of contacts are electrically connected to the electronic unit through the circuit of the circuit board; It is characterized in that, by means of setting the safety circuit of the control circuit, when the docking structure is bidirectionally docked and positioned on the docking electrical connector, proper circuit safety protection can be performed. 24. A positive and negative double-sided electrical connection structure, comprising: A circuit board, the circuit board is provided with two sets of conductive contacts, and the two sets of conductive contacts are respectively arranged on different sides of the circuit board; and Two rows of terminals, the two rows of terminals are respectively welded to two sets of conductive contacts of the circuit board, and the terminals are provided with a contact; A connecting board, which is provided with an insulating base body formed by sealing glue on both sides of the circuit board, the two rows of terminals are embedded and fixed in the insulating base body, and the contacts of the two rows of terminals are respectively located on the upper and lower boards of the connecting board On the other hand, at least one pair of contacts with the same circuit number in the two rows of contacts are arranged oppositely to each other, and the shape of the connecting plate can be positioned on a pair of electrical connectors with front and back sides facing each other. 25. A front and back double-sided electrical connector, comprising: a circuit board; an electronic unit electrically connected to the circuit board; A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower plate surfaces, and the upper and lower plate surfaces are each provided with a connection interface, the two connection interfaces are different connection interfaces and each is provided with at least one row of contacts, wherein One connection interface is provided with a row of spring contacts, the other connection interface is provided with a row of planar contacts, at least one row of contacts of the at least two rows of contacts is formed in a row of terminals, and the two connection interfaces are electrically connected to the circuit board and the electronic unit, The shape of the docking structure can be double-sidedly positioned in the connection groove of the electrical connection socket, and the docking structure can be double-sidedly inserted into the connection grooves of the electrical connection socket with different connection interfaces for electrical connection. 26. A positive and negative double-sided electrical connection structure, comprising: A connecting board, which is an insulator, and the upper and lower two boards of the connecting board are respectively provided with at least one row of contacts, and the two rows of contacts are planar contacts flatly attached to the upper and lower two boards of the connecting board, and the two rows of contacts are formed on two A row of terminals, at least one pair of contacts with the same circuit number in the two rows of contacts are arranged in opposite directions. A bottom surface and a top surface, at least one row of contact points is provided on at least one of the top surface and the bottom surface, and the at least one row of contact points is a spring contact point protruding from the top surface or the bottom surface, at least one row of contact points of the connecting groove and the At least one row of contacts on the upper and lower board surfaces of the connection board are electrically connected. 27. A positive and negative double-sided electrical connection structure, comprising: a circuit board provided with two sets of conductive contacts; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower boards, the upper and lower boards are respectively provided with contacts arranged at the front and back, and the contacts arranged at the front and back include at least one row of contacts, at least one of the two rows of contacts A pair of contacts with the same circuit number are arranged opposite to each other. The shape of the docking structure can be double-faced and positioned on a pair of docking electrical connectors. The two rows of contacts are formed on the second row of terminals, and the second row of terminals is positioned on the For the insulator of butt joint structure, the contacts arranged in the front and rear of the upper and lower boards are each provided with only one row of pins to electrically connect two sets of conductive contacts of the circuit board. 28. A positive and negative double-sided electrical connection structure, comprising: a circuit board provided with two sets of conductive contacts; and A butt joint structure, the butt joint structure is provided with an insulator, and the insulator is provided with upper and lower board surfaces, and each of the upper and lower board surfaces is provided with at least five rows of contacts protruding from the upper and lower board surfaces, at least one pair of the two rows of contacts The contacts of the same circuit number are arranged in opposite directions, and the shape of the docking structure can be positioned on a pair of docking electrical connectors. The two rows of contacts are formed on the second row of terminals, and the two rows of terminals are positioned on the docking structure. Each of the two rows of terminals is provided with a row of pins that are electrically connected to two sets of conductive contacts of the circuit board, and at least one row of pins is a horizontal pin. 29. A positive and negative double-sided electrical connection structure, comprising: a circuit board provided with two sets of conductive contacts; and A butt joint structure, the butt joint structure is provided with an insulator, the insulator is provided with upper and lower plate surfaces, each of the upper and lower plate surfaces is provided with a high and low connection part with a front low and a rear high one, and the upper and lower two plate surfaces are respectively provided with at least One row of contacts, at least one pair of contacts with the same circuit number in the two rows of contacts are arranged in opposite directions. A row of terminals, the two rows of terminals are positioned on the insulator of the butt joint structure, each of the two rows of terminals is provided with a row of pins electrically connected to two sets of conductive contacts of the circuit board, and at least one row of pins is a horizontal pin. 30. A positive and negative double-sided electrical connection structure, comprising: a circuit board; an electronic unit electrically connected to the circuit board; and A connecting board, which is connected to the circuit board, each of the two boards of the connecting board is provided with at least one row of contacts of the printed circuit, at least one pair of contacts of the same circuit number in the two rows of contacts are arranged in opposite directions, the connecting board The shape can be double-faced and positioned on a pair of electrical connectors. The two boards of the connecting board are each provided with a large number of printed circuits that are electrically connected to the two rows of contacts. At least one pair of signal contacts in the two rows of contacts are electrically connected. The printed circuit is an independent signal circuit, and the printed circuit electrically connected to the two rows of contacts is electrically connected to the electronic unit. 31. The front and back double-sided electrical connection structure as claimed in claim 30 can be one of the following or a combination of both: a. The separate signal printed circuit in which the at least one pair of signal contacts is electrically connected is not electrically connected to the signal printed circuit connected electrically to other contacts; b. Wherein the circuit board is integrally connected with the connection board. 32. The front and back double-sided electrical connection structure as claimed in claim 1, wherein a metal plate is further provided in the middle of the insulator of the butt joint structure, and the metal plate separates the two rows of terminals. 33. The front and back double-sided electrical connection structure as claimed in claim 1 or 2, wherein the left and right sides of the docking structure are provided with a locking structure of metal material, and when the docking structure is docked with the docking electrical connector, the locking structure The structure can be locked with the locking structure of the docking electrical connector. 34. The front and back double-sided electrical connection structure as claimed in claim 1, wherein the locking structure can be a positioning recess or a positioning elastic piece. 35. The front and back double-sided electrical connection structure as claimed in claim 2, wherein the insulator of the docking structure is provided with a connecting plate, the upper and lower sides of the connecting plate are the upper and lower surfaces of the docking structure, and the metal plate is arranged on the The middle of the connecting plate thickness. 36. The front and back double-sided electrical connection structure as claimed in claim 29, wherein the high and low connection parts are high and low contacts, and the high and low contacts include the at least one row of contacts. 37. As in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23 Or 24 or 25 or 26 or 27 or 28 or 29 or 30 or 31 or 32 or 33 or 34 or 35 or 36 described positive and negative double-sided electrical connection structure, which is a male head, wherein the docking electrical connector is One is electrically connected to the female seat. 38. As claimed in claim 1 or 2 or 3 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 17 or 18 or 19 or 20 or 23 or 27 or 28 or 29 or 32 or 33 Or 34, 35 or 36, the positive and negative double-sided electrical connection structure, wherein the insulator of the butt joint structure is provided with a connecting plate, and the upper and lower sides of the connecting plate are the upper and lower two board surfaces of the butt joint structure. 39. As in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 12 or 13 or 14 or 15 or 17 or 18 or 19 or 20 or 23 or 24 or 26 or 27 or 29 or 32 Or the positive and negative double-sided electrical connection structure described in 33 or 34 or 35 or 36 can be one of the following: a. The two rows of contacts are located in the front of the two side contacts, and the two rows of contacts are the same connection interface; b. The two rows of contacts are flat contacts with longer sides, and the two rows of contacts are the same connection interface; c. The second row of contacts is located in the front of the two side contacts; d. Among them, the two rows of contacts are flat contacts with longer sides. 40. As in claim 1 or 2 or 3 or 4 or 5 or 6 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 19 or 20 or 21 or 22 or 23 or 24 or 26 or 27 Or 28 or 29 or 30 or 31 or 32 or 33 or 34 or 35 or 36 described front and back double-sided electrical connection structure, can be one of the following: a. The contacts of the same circuit number in the two rows of contacts are arranged in opposite directions; b. The two rows of contacts are the same connection interface and the contacts of the same circuit number are arranged in reverse order; c. The two rows of contacts are the same connection interface. 41. The front and back double-sided electrical connection structure as claimed in claim 7 or 17 or 18, which can be one or a combination of more than one of the following: a. The contacts with the same circuit number of the two rear contacts are arranged in opposite directions; b. The contacts of the same circuit number of the two rear contacts are arranged in opposite directions and the two rear contacts have the same connection interface; c. The two rows of contacts are the same connection interface; d. Among the two rows of contacts, at least one pair of contacts of the same circuit is electrically connected; e. Among the two rows of contacts, at least one pair of contacts of the same signal circuit is electrically connected; f. Among the two rows of contacts, the contacts of the same grounding circuit are electrically connected and the contacts of the same power circuit are electrically connected; g. The two rows of first contacts are the same connection interface and the contacts of the same circuit are all electrically connected. 42. The front and back double-sided electrical connection structure as claimed in claim 1 or 2 or 8 or 9 or 12 or 15 or 17 or 21 or 22 or 23 or 27 or 28, which can be one of the following: a. There is also a metal shell, which covers the docking structure so that only the upper and lower boards and the two rows of contacts are exposed; b. The insulator of the docking structure is provided with a connecting plate, the upper and lower sides of the connecting plate are the upper and lower board surfaces of the docking structure, and a metal shell is further provided, and the metal shell covers the connecting plate so that only the upper and lower board surfaces And the two rows of contacts are exposed. 43. The front and back double-sided electrical connection structure as claimed in claim 1 or 2 or 3 or 4 or 8 or 9 or 15 or item 19 or 20 item 23 item 26 can be one of the following: a. Wherein the two rows of terminals are buried and projected on the insulator; b. The insulator of the docking structure is provided with a connecting plate, the upper and lower sides of the connecting plate are the upper and lower board surfaces of the docking structure, and the two rows of terminals are embedded and projected on the connecting plate. 44. As claimed in claim 1 or 2 or 3 or 4 or 6 or 8 or 9 or 10 or 11 or 12 or 13 or 15 or 16 or 19 or 20 or 21 or 22 or 23 or 24 or 26 or 27 or 28 or 29 Or 32 or 33 or 34 or 35 or 36 described positive and negative double-sided electrical connection structure, can be one of the following: a. Among the two rows of contacts, at least one pair of contacts of the same circuit are electrically connected; b. Among the two rows of contacts, at least one pair of contacts of the same signal circuit is electrically connected; c. Among the two rows of contacts, the contacts of the same grounding circuit are electrically connected and the contacts of the same power circuit are electrically connected; d. The two rows of first contacts are the same connection interface and the contacts of the same circuit are all electrically connected. 45. The front and back double-sided electrical connection structure as claimed in claim 1 or 2 or 3 or 5 or 18 or 22 or 26 or 32 or 33 or 34 or 35, wherein a circuit board and an electronic unit are further provided, the circuit The board is provided with two sets of conductive contacts, each of the two rows of terminals is provided with pins that are electrically connected to the two sets of conductive contacts of the circuit board, and the electronic unit is electrically connected to the circuit board and the two groups of conductive contacts through a circuit. 46. The front and back double-sided electrical connection structure according to claim 45, wherein it can be one or a combination of more than one of the following: a. Among the contacts of the two rows of terminals, at least one pair of contacts of the same circuit is electrically connected through the circuit board; b. Among the two rows of contacts, at least one pair of contacts of the same signal circuit are electrically connected through the circuit board; c. Among the two rows of contacts, the contacts of the same ground circuit and the contacts of the same power circuit are respectively electrically connected through the circuit board; d. Among the contacts of the two rows of terminals, the contacts of the same circuit are all electrically connected through the circuit board; e. The electronic unit is a storage unit, which includes at least one memory and a control circuit; f is provided with an outer covering body covering the circuit board; g. The two sets of conductive contacts are electrically connected to the independent signal circuit and electrically connected to the electronic unit; h. The two sets of conductive contacts of the circuit board are located on different sides of the circuit board; i. The two sets of conductive contacts of the circuit board are arranged on different sides of the circuit board, and each of the two rows of first terminals is provided with a row of horizontal pins respectively electrically connected to the two sets of conductive contacts of the circuit board; j. The electronic unit is a group of multiple wires to form an electrical connection line male, or the electronic unit is a wireless transceiver module to form a wireless transceiver device, or the electronic unit is a switch circuit and an electrical connector An electrical transfer connector, or the electronic unit is an expansion circuit and a set of electrical connection sockets to form an expansion socket, or the electronic unit is a control unit to form an IC controller; k. At least one pair of the two sets of conductive contacts of the circuit board is electrically connected to a separate signal transmission circuit; l. The electronic unit includes a control circuit, which can control the electronic unit to adopt forward and reverse corresponding circuit signal transmission; m. The electronic unit includes a control circuit, the control circuit is provided with at least one IC control chip, and the at least one IC control chip is electrically connected to at least two pairs of separate signal transmission circuits of the circuit board; n. The electronic unit includes a control circuit including a safety circuit setting means. 47. The front and back double-sided electrical connection structure as claimed in claim 4 or 6 or 7 or 8 or 9 or 15 or 24 or 27 or 28 or 29, wherein an electronic unit is further provided, and the electronic unit is electrically connected to the circuit board The two groups of conductive contacts are electrically connected through a circuit. 48. The front and back double-sided electrical connection structure according to claim 47, wherein it can be one or a combination of more than one of the following: a. Among the two rows of contacts, at least one pair of contacts of the same circuit is electrically connected through the circuit board; b. Among the two rows of contacts, at least one pair of contacts of the same signal circuit are electrically connected through the circuit board; c. Among the two rows of contacts, the contacts of the same ground circuit and the contacts of the same power circuit are respectively electrically connected through the circuit board; d. Among the two rows of contacts, the contacts of the same circuit are all electrically connected through the circuit board; e. The electronic unit is a storage unit, which includes at least one memory and a control circuit; f. An outer covering body is provided to cover the circuit board; g. The two sets of conductive contacts are electrically connected to the independent signal circuit and electrically connected to the electronic unit; h. The two sets of conductive contacts of the circuit board are located on different sides of the circuit board; i. The two sets of conductive contacts of the circuit board are arranged on different sides of the circuit board, and each of the two rows of first terminals is provided with a row of horizontal pins respectively electrically connected to the two sets of conductive contacts of the circuit board; j. The electronic unit is a group of multiple wires to form an electrical connection line male, or the electronic unit is a wireless transceiver module to form a wireless transceiver device, or the electronic unit is a switch circuit and an electrical connector An electrical transfer connector, or the electronic unit is an expansion circuit and a set of electrical connection sockets to form an expansion socket, or the electronic unit is a control unit to form an IC controller; k. At least one pair of the two sets of conductive contacts of the circuit board is electrically connected to a separate signal transmission circuit; l. The electronic unit includes a control circuit, which can control the electronic unit to adopt forward and reverse corresponding circuit signal transmission; m. The electronic unit includes a control circuit, the control circuit is provided with at least one IC control chip, and the at least one IC control chip is electrically connected to at least two pairs of separate signal transmission circuits of the circuit board; n. The electronic unit includes a control circuit including a safety circuit setting means. 49. The front and back double-sided electrical connection structure according to claim 3 or 4, wherein the two rows of terminals are respectively embedded and projected to be positioned on the upper and lower insulating bases. 50. As in claim 1 or 2 or 3 or 4 or 6 or 7 or 8 or 9 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 23 or 24 or 25 or 26 or 27 or 28 Or 29 or 32 or 33 or 34 or 35 or 36 described in the positive and negative double-sided electrical connection structure, wherein each of the two rows of terminals is a row of horizontal pins of different heights, or the two rows of terminals are in a row of the same height Horizontal pins. 51. The front and back double-sided electrical connection structure according to claim 8, wherein it can be one or a combination of more than one of the following: a. The reinforcement structure is provided in the socket groove of the insulator of the docking structure, and the front section of the circuit board is socketed and locked in the socket groove; b. The reinforcement structure is a metal partition plate located in the middle of the insulator of the butt joint structure; c. The reinforcement structure is a metal shell, and the metal shell covers the docking structure so that only the upper and lower panels and the two rows of contacts are exposed; d. Combine the docking structure and the circuit board with the reinforcing structure and enhance the strength of the docking structure and the circuit board; e. The circuit board is provided with a circuit safety protection means, such as a circuit safety protection element or a safety circuit setting means. 52. As in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 item 10 or 11 or 12 or 13 or 14 or 15 or 16 or 19 or 20 or 23 or 26 or 27 or 28 or 29 or 32 or 33 or 34 or 35 or 36 the front and back double-sided electrical connection structure, wherein the two rows of contacts are the same flat connection interface. 53. The front and back double-sided electrical connection structure as claimed in claim 7 or 12 or 17 or 18 or 21 or 22 or 27 or 28 or 29 or 32 or 33 or 34 or 35 or 36, wherein the contacts of the two rows of terminals For the spring contact. 54. The front and back double-sided electrical connection structure as claimed in claim 13 or 14 or 19 or 20 or 23, wherein there is a switching device, which can switch the front and back sides and use the corresponding contacts on one side to conduct connection instead of using The corresponding contacts on the other side are connected, or the corresponding contacts on both sides of the front and back are used for connection, and the two rows of contacts are electrically connected to the switching device and the control circuit. 55. The front and back double-sided electrical connection structure according to claim 21 or 22, wherein it can be one of the following or a combination of more than one: a. wherein the docking structure is further provided with an outer casing covering the insulator; b wherein the rear section of the top and bottom surfaces is higher than the front section; c. The at least two rows of contacts can bounce up and down and respectively protrude from the top surface and bottom surface of the connecting groove; d. At least one row of contacts on the top surface and the bottom surface are at least two rows of contacts at the front and back, and at least the rear row of contacts is the connection interface. The two rear row contacts can bounce up and down and protrude respectively from the top surface and the connection groove bottom surface; e. At least one row of contacts on the top surface and the bottom surface are at least two rows of contacts at the front and back, and at least the rear row of contacts is the connection interface. The two rear rows of contacts can bounce up and down and protrude respectively from the top surface and bottom surface, the rear row of contacts is higher than the front row of contacts; f. At least one row of contacts on the top surface and the bottom surface are at least two rows of contacts at the front and back, and at least the rear row of contacts is the connection interface, and the two rear rows of contacts can bounce up and down and protrude respectively from the top surface and The bottom surface, the rear section of the top surface and the bottom surface are higher than the front section, and the rear row of contacts is higher than the front row of contacts. 56. The front and back double-sided electrical connection structure as claimed in claim 21, wherein a circuit board is provided, the circuit board is provided with two sets of conductive contacts and the at least one row of welding pads, and the electronic unit is electrically connected on the circuit board On at least one row of welding pads, at least one row of terminals of the two connection interfaces is provided with pins to electrically connect two sets of conductive contacts of the circuit board to electrically connect with the electronic unit. 57. As in claim 1 or 2 or 3 or 4 or 5 or 6 or 8 or 9 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 or 26 or 27 Or the positive and negative double-sided electrical connection structure described in 28 or 29 or 32 or 33 or 34 or 35 or 36 can be one of the following: a. Among the contacts of the two rows of terminals, at least one pair of contacts of the same circuit is electrically connected to a circuit safety protection element or safety circuit installation means; b. At least one pair of contact points of the two rows of terminals is electrically connected to a circuit safety protection element or safety circuit setting means; c. Among the contacts of the two rows of terminals, at least one pair of contacts of the same circuit shall be electrically connected to a circuit safety protection element or safety circuit installation means before being electrically connected; d. At least one pair of contact points of the two rows of terminals shall be electrically connected to a circuit safety protection element or safety circuit installation means before being electrically connected. 58. The front and back double-sided electrical connection structure according to claim 25, which can be one of the following or a combination of more than two: a. The electronic unit is a transfer circuit and an electrical connector to form a transfer electrical connector; b. The electronic unit is a storage unit, which includes at least one memory and a control circuit; c. The electronic unit is a storage unit, which includes two memories and a control circuit, and the two connection interfaces are respectively electrically connected to the two memories; d. The one connection interface is provided with a row of spring contacts, and the row of spring contacts is formed on a row of spring terminals. 59. The front and back double-sided electrical connection structure as claimed in claim 12 or 14, wherein the electronic unit is a storage unit, which includes two memories, and the two groups of conductive contacts are electrically connected through separate signal transmission circuits. Connect the two memory. 60. The front and back double-sided electrical connection structure according to claim 10, which can be one of the following or a combination of more than two: a. Among the two rows of contacts, there are multiple longer contacts; b. The two rows of contacts are the same connection interface; c. There is also a circuit board and an electronic unit, the electronic unit is electrically connected to the circuit board and electrically connected to the two rows of contacts through the circuit; d. There is also a circuit board and an electronic unit, the two sides of the circuit board are provided with the two rows of contacts, the electronic unit is electrically connected to the circuit board and the two rows of contacts through the circuit, and the electronic unit is a storage unit into a memory card. 61. The front and back double-sided electrical connection structure as claimed in claim 11, wherein an IC chip is arranged in the docking structure to form an IC chip card, and the upper and lower boards are flatly attached with contacts arranged before and after. There are two rows of contacts at the front and rear, and the two rows of contacts on the upper and lower boards, wherein the contacts with the same circuit number are arranged in opposite directions. 62. The front and back double-sided electrical connection structure as claimed in claim 12 or 13 or 14 or 16 or 17 or 19 or 20 or 23 can be one of the following or a combination of more than two: a. Among the two rows of contacts, at least one pair of contacts of the same circuit is electrically connected through the circuit board; b. Among the two rows of contacts, at least one pair of contacts of the same signal circuit are electrically connected through the circuit board; c. Among the two rows of contacts, the contacts of the same ground circuit and the contacts of the same power circuit are respectively electrically connected through the circuit board; d. Among the two rows of contacts, the contacts of the same circuit are all electrically connected through the circuit board; e. The electronic unit is a storage unit, which includes at least one memory and a control circuit; f. An outer covering body is provided to cover the circuit board; g. The two sets of conductive contacts are electrically connected to the independent signal circuit and electrically connected to the electronic unit; h. The two sets of conductive contacts of the circuit board are located on different sides of the circuit board; i. The two sets of conductive contacts of the circuit board are arranged on different sides of the circuit board, and each of the two rows of first terminals is provided with a row of horizontal pins respectively electrically connected to the two sets of conductive contacts of the circuit board; j. The electronic unit is a group of multiple wires to form an electrical connection line male, or the electronic unit is a wireless transceiver module to form a wireless transceiver device, or the electronic unit is a switch circuit and an electrical connector An electrical transfer connector, or the electronic unit is an expansion circuit and a set of electrical connection sockets to form an expansion socket, or the electronic unit is a control unit to form an IC controller; k. At least one pair of the two sets of conductive contacts of the circuit board is electrically connected to a separate signal transmission circuit; l. The electronic unit includes a control circuit, which can control the electronic unit to adopt forward and reverse corresponding circuit signal transmission; m. The electronic unit includes a control circuit, the control circuit is provided with at least one IC control chip, and the at least one IC control chip is electrically connected to at least two pairs of separate signal transmission circuits of the circuit board; n. The electronic unit includes a control circuit including a safety circuit setting means. 63. As claimed in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or item 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 Or 23 or 24 or 26 or 27 or 28 or 29 or 32 or 33 or 34 or 35 or 36 described in the positive and negative double-sided electrical connection structure, which can be one of the following, or a combination of more than one: a. Among them, the upper and lower boards are respectively equipped with a high and low connection part with a low front and a high rear; b. Among them, the upper and lower boards are respectively provided with contacts arranged at the front and back; c. Among them, the upper and lower boards are respectively provided with contacts arranged front and back, and the contacts arranged front and back include at least one row of contacts; d. Wherein the upper and lower boards are respectively provided with front and rear contacts and the front and rear contacts include at least one row of contacts, and the front and back contacts of the upper and lower boards are each provided with only one row of pins; e. At least one of the two rows of terminals is a detection terminal; f. The back section of the insulator of the docking structure is provided with a socket slot, and the front section of the circuit board is socketed and locked in the socket slot; g. There is also a reinforcing structure, which is set on the docking structure, so as to enhance the strength of the docking structure; h. The two rows of contacts are electrically connected to at least one pair of separate signal transmission circuits; i. The two rows of contacts are electrically connected to at least two pairs of separate signal transmission circuits; j. The insulation system of the docking structure is the upper and lower insulating bases; k. Two rows of terminals are buried and injected into the insulator fixed to the butt joint structure; l. The two rows of terminals are respectively embedded and fixed on the upper and lower insulating bases of the docking structure. 64. The front and back double-sided electrical connection structure as claimed in claim 15, wherein the means for setting the safety circuit can be a circuit safety protection element.