TWI786393B - electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector, which includes an insulating base body, a terminal group and a housing, wherein a tongue plate extends from one side of the base of the insulating base body, and a plurality of terminals of the terminal group are combined in the insulating base body, and The terminal has a base that is combined in the base, and a butt end that is combined with the tongue plate extends from one side of the base, and the upper and lower sides of the butt end are formed with butt joint surfaces that are exposed on the tongue plate and the lower two sides, And on the other side of the base, there is a connection end for forming an electrical connection with the preset circuit board, and the outer cover of the insulating base and the terminal group is covered with a shell, because the butt end is directly using the butt surface of the upper and lower sides To form electrical contact with the preset electrical connector for power transmission, the cross-sectional area of the current passing can be increased through multiple terminals, so that a larger current can pass through, thereby achieving the effect of carrying a large current.

Description

electrical connector

The present invention provides an electrical connector, especially the butt-joint ends of multiple terminals, which directly use the butt-joint surfaces of the upper and lower sides to form electrical contact with the preset electrical connector for power transmission, which can be achieved through multiple terminals. Increase the cross-sectional area when the current passes, and then allow a larger current to pass through, thereby achieving the effect of being able to load a large current.

By the way, today's electronic technology is growing at an ever-changing speed, which makes the computer type develop from a desktop computer to a small and portable notebook computer, which is widely used in every corner of the society. When users want to perform data transmission or When connecting with other peripheral devices, the peripheral device interface is required. Generally, the peripheral device interface on the market is the most common and widely used by the public. The universal serial bus (USB) is still the mainstream, and the use of USB can support The hot-swappable function is plug-and-play, making it easier to use.

Moreover, USB3.0 has become the most popular mainstream connection interface at present, and is fully used in various external electronic products, such as external hard disks, solid state disks (SSD), multimedia audio-visual players, etc., while USB faces For other high-speed interface challenges, the USB3.1 Type-C specification was launched, which is mainly slightly larger in size than the existing USB2.0 Micro-B, and supports higher power charging and power supply capabilities, and the transmission speed can reach up to 10Gbps , it can support front and back plugging in use, so that users no longer need to divide Distinguishing the front and back can also be expanded to be applicable to thin and light mobile devices such as tablet computers, smart phones, and notebook computers, so it is especially used in the market.

However, because today's electronic products are all developing towards small size and high current transmission requirements, so that continuous improvement and innovation are required to change the interface type and quantity of power transmission. If the terminals of power transmission cannot withstand high current, a short circuit will occur , or the impedance generated by the current causes temperature rise and causes overheating and burning, which leads to damage and damage to electronic products.

Therefore, how to solve the deficiency and inconvenience of the above-mentioned common usage is the direction that the related industry engaged in this industry eagerly wants to study and improve.

Therefore, in view of the above shortcomings, the inventor collected relevant information, and after various evaluations and considerations, he designed the invention patent of this kind of electrical connector.

The first object of the present invention is that the insulating base body has a base, and a tongue plate extends on one side of the base, and a plurality of terminals of the terminal group are combined in the insulating base, and the terminals have a plurality of terminals combined in the base. On one side of the base, there is a butt end that is integrated into the tongue plate, and the upper and lower sides of the butt end form a butt joint surface that is exposed on the tongue plate and the lower two sides, and extends on the other side of the base. The connection end that forms an electrical connection with the preset circuit board, and the outer cover of the insulating base and the terminal group is covered with a housing, because the butt end directly uses the butt surfaces of the upper and lower sides to form a preset electrical connector Electrical contact is used for power transmission, which can increase the cross-sectional area of current passing through a plurality of terminals, and then allow larger current to pass through, so as to achieve the purpose of carrying large current.

The second object of the present invention is that the spacer between the terminal groups can improve the insulation The structural strength of the tongue plate of the seat can achieve the purpose of reducing the breakage of the tongue plate during long-term insertion and extraction.

The third purpose of the present invention is that when the tongue plate of the insulating base extends into the docking space of the external electrical connector to form a docking connection, the elastic buckle arms at the left and right sides of the docking space are buckled into the left side of the spacer. 1. The buckle grooves on the two right sides are positioned with a buckle. Since the spacer is made of metal, when the inner wall of the buckle groove rubs against the elastic buckle arm, the two sides of the tongue plate made of plastic can be avoided. Structural damage is caused by repeated plugging and unplugging, so as to achieve the purpose of improving the service life.

The fourth object of the present invention is that when the plurality of terminals of the terminal group are in-moulded with an insulating seat body, the insulating seat will be filled in at least one notch at the butt end and the slot at the front end, so that the plurality of terminals and the insulating seat can be lifted The bonding strength between the body, and then achieve the purpose of increasing the pull-out resistance.

The fifth purpose of the present invention is that the contact arm of the spacer is in contact with the top surface of the accommodating space of the casing, so it will form a ground loop, which can improve the path and density of ground conduction, so as to ensure that the signal is transmitted The purpose of exporting the generated electromagnetic wave and crosstalk interference.

The sixth purpose of the present invention is that the upper and lower end faces of the plurality of terminals are formed with arc-shaped or inclined guide surfaces, so that the distance between the tongue plate and the insulating base can be increased through the guide surfaces. Combination, and when the plurality of conductive terminals and the plurality of grounding terminals of the external electrical connector touch the butt end of the plurality of terminals, the butt end will use the guide surfaces on the upper and lower sides to connect the plurality of conductive terminals and the plurality of grounding terminals The terminals are guided to the docking surfaces on the upper and lower sides to achieve the purpose of improving the smoothness of docking and use.

1: Insulation base

11: Base

111: buttonhole

112: positioning column

12: tongue plate

121: Groove

2: Terminal group

21: terminal

211: base

212: Butt end

2121: docking surface

2122: perforation

2123: missing holes

2124: card slot

2125: guide surface

213: connection end

214: fixed end

22: spacer

221: Through hole

222: button slot

223: contact arm

224: Positioning end

225: binding end

3: Shell

30:Accommodating space

301: opening

31: button piece

32: Pin

[Fig. 1] is a three-dimensional appearance view of the present invention.

[Fig. 2] is a three-dimensional exploded view of the present invention.

[Fig. 3] is an exploded perspective view of another perspective of the present invention.

[Fig. 4] is a three-dimensional appearance view of the terminal group of the present invention.

[Fig. 5] is a three-dimensional appearance view of another viewing angle of the terminal group of the present invention.

[Fig. 6] is a three-dimensional appearance view of the combination of the insulating base body and the terminal group of the present invention.

[Fig. 7] is a three-dimensional appearance view of another perspective after the combination of the insulating base body and the terminal group of the present invention.

[Fig. 8] is a side sectional view of the present invention.

In order to achieve the above-mentioned purpose and effect, the technical means and the structure adopted by the present invention are hereby illustrated in detail with respect to the preferred embodiments of the present invention. Its features and functions are as follows, so that it can be fully understood.

Please refer to Figures 1, 2, 3, 4, 5, 6, 7, and 8, which are the three-dimensional appearance diagram, the three-dimensional exploded view, the three-dimensional exploded view of another angle of view, the three-dimensional appearance diagram of the terminal group, The three-dimensional appearance diagram of the terminal group from another angle, the three-dimensional appearance diagram after the combination of the insulating base body and the terminal group, the three-dimensional appearance diagram and the side view section view after the combination of the insulating base body and the terminal group, which can be clearly seen from the figure It can be seen that the present invention includes an insulating base body 1, a terminal group 2 and a housing 3, wherein:

The insulating seat body 1 has a base 11, and a plurality of buttonholes 111 are provided on the surface of the base 11, and a plurality of positioning posts 112 are protruded from the bottom surface of the base 11, and a tongue plate is extended on one side of the base 11. 12, and the left and right sides of tongue plate 12 are provided with grooves 121.

The terminal group 2 includes a plurality of terminals 21, and a spacer 22 integrally formed of metal material, wherein the terminal 21 has a base 211, and a butt end 212 extends on one side of the base 211, and the upper and lower sides of the butt end 212 The butt surface 2121 is formed, and at least one through hole 2122 is provided inside the butt end 212 of the two opposite outer terminals 21, and at least one notch 2123 is provided inside the other butt end 212, and a card is recessed at the front end of the plurality of butt ends 212 Slot 2124, and an arc-shaped or inclined guide surface 2125 is formed at the upper and lower ends of the opening of the slot 2124, and at least one connecting end 213 extends downward on the other side of the base 211, and two opposite outer terminals 21 The base 211 is provided with a fixed end 214 bent and extended outwards on the opposite side of the butt end 212 and the connection end 213, and the interior of the spacer 22 is provided with at least one through hole 221 for a plurality of terminals 21 to be inserted, and The left and right sides of the spacer 22 are concavely provided with buckle grooves 222, and the top surface of the rear side of the spacer 22 is provided with a contact arm 223, and at least one positioning end 224 is extended at the bottom surface of the rear side of the spacer 22. The left and right sides of the sheet 22 are bent and extended to have joint ends 225 .

The hollow interior of the casing 3 is formed with an accommodating space 30, and an opening 301 is provided on one side of the accommodating space 30, and a plurality of buckle pieces 31 are arranged on the top surface of the accommodating space 30, and a plurality of buckles 31 are provided on the bottom surface of the casing 3 to A plurality of pins 32 extend downward.

The plurality of terminals 21 of the above-mentioned terminal group 2 preferably has six terminals 21 , which may include the middle four terminals 21 for power supply and the outer two terminals 21 for grounding.

When the present invention is actually assembled, the plurality of terminals 21 and the spacers 22 of the terminal group 2 can be integrally molded in the form of in-mold injection (Insert Molding) prior to the interior of the insulating base 1, and the bases 211 of the plurality of terminals 21 are combined. Inside the base 11 of the insulating base 1, and the butt ends 212 of the plurality of terminals 21 extend to the insulating base 1 at the tongue plate 12, and the tongue plate 12 is perpendicular to each other, and the butt joint surfaces 2121 on the upper and lower sides of the butt end 212 are respectively exposed on the surface of the tongue plate 12, and the connection ends 213 of the plurality of terminals 21 are Go out to the bottom of the base 11, and the fixed end 214 of the plurality of terminals 21 is positioned laterally inside the base 11. In addition, the spacer 22 is combined with the tongue plate 12 of the insulating base 1, so that the plurality of terminals 21 are arranged at intervals in the plurality of through holes 221 of the spacer 22, and the buckle grooves 222 on the left and right sides of the spacer 22 are exposed at the groove 121 of the tongue plate 12. At this time, the contact of the spacer 22 The arm 223 just extends to the outer side of the top of the base 11. At the same time, the plurality of positioning ends 224 at the bottom surface of the rear side of the spacer 22 pass out to the place below the base 11, and the two joint ends 225 of the spacer 22 are positioned laterally. Inside the base 11, after the terminal group 2 is indeed formed in the insulating seat body 1, the accommodating space 30 of the housing 3 can be used to accommodate the insulating base body 1 and the terminal group 2, so that the multiple buckles of the housing 3 The sheet 31 is fastened into the plurality of buttonholes 111 on the top surface of the insulating seat body 1 to be positioned, and the contact arm 223 of the spacer sheet 22 is brought into contact with the top surface of the housing space 30 of the housing 3, whereby the insulating seat can be penetrated. Body 1, terminal group 2 and housing 3 to complete the electrical connector in the form of a universal serial bus Type-C socket.

The above-mentioned terminal group 2 is preferably implemented by using plastics to jointly over-inject and mold the insulating base body 1 by means of in-mold injection (Insert Molding). The plurality of terminals 21 and spacers 22 can also be combined and positioned with the insulating base 1 by in-mold injection molding or assembly according to actual needs or different structural designs.

Furthermore, when the plurality of terminals 21 of the above-mentioned terminal group 2 are injected into the insulating base 1, the insulating base 1 will fill at least one through hole 2122 of the butt end 212, at least A notch 2123 and a slot 2124 are used to increase the bonding strength between the plurality of terminals 21 and the insulating base 1, thereby achieving the effect of increasing the pull-out resistance.

Moreover, the spacer 22 between the above-mentioned terminal groups 2 is formed inside the tongue plate 12 of the insulating seat body 1, so that the structural strength of the tongue plate 12 can be improved through the spacer 22, so as to reduce the occurrence of the tongue plate 12 when plugging and unplugging for a long time. The fracture situation.

When the present invention is actually used, the present invention can be combined on the preset circuit board (not shown in the figure) first, and the base 11 and the housing 3 of the insulating seat body 1 are multiple positioning posts that can pass through the bottom surface 112 and a plurality of pins 32 are set to be located in the plurality of holes corresponding to the preset circuit board, and the terminal group 2 can use the through hole method (Through hole) to solder the connecting ends 213 of the plurality of terminals 21 to the external circuit board. The plurality of positioning ends 224 of the spacer 22 can also be positioned in the fixing holes of the external circuit board by welding, so that the present invention can be stably fixed on the external circuit board without shaking, and When the present invention is docked with a relative type of external electrical connector (such as: Type-C plug type electrical connector; not shown in the figure), the accommodating space 30 of the housing 3 can be accessed through the opening 301 on one side. For the insertion of the external electrical connector, so that the tongue plate 12 of the insulating seat body 1 extends into the docking space of the external electrical connector, and at the same time, the elastic buckle arms at the left and right sides of the docking space are buckled into the spacer 22. The buckle grooves 222 on the left and right sides are locked and positioned. At this time, the butt joint ends 212 of the plurality of terminals 21 can use the butt joint surfaces 2121 of the upper and lower sides to connect with the upper and lower sides of the docking space. A plurality of conductive terminals and a plurality of grounding terminals form an electrical contact to perform power transmission and form a grounding loop, and because the present invention can directly increase the cross-sectional area of the current passing through the structural design of the plurality of terminals 21, thereby allowing larger currents to pass through , so as to achieve the effect of carrying large current, so as to avoid the problem of short circuit or arc jump.

The connecting ends 213 of the plurality of terminals 21 are preferably soldered to the soldering holes of the external circuit board through a through hole, but in practical applications, surface mount technology (SMT) can also be used to connect with the external circuit The board forms an electrical connection, so all structures and devices that can achieve the aforementioned effects should be covered by the present invention, and such simple modifications and equivalent structural changes should be included in the patent scope of the present invention in the same way. Bright.

Moreover, when the tongue plate 12 of the above-mentioned insulating base 1 extends into the docking space of the external electrical connector to form a docking connection, the elastic buckle arms at the left and right sides of the docking space are buckled into the left and right sides of the spacer 22. The buckle groove 222 on the two sides is a buckle positioning, because the spacer 22 is made of metal material, so when the inner wall surface of the buckle groove 222 is buckled and rubbed with the elastic buckle arm, the tongue plate 12 made of plastic can be avoided. Structural damage is caused by the side being plugged and pulled out many times, thereby achieving the effect of improving the service life.

And the butt end 212 of the plurality of terminals 21 uses the butt surface 2121 of the upper and lower sides to form electrical contact with the plurality of conductive terminals and the plurality of ground terminals, so only a single terminal 21 is needed to achieve the effect of forming electrical contact at the same time , which in turn can reduce the mold manufacturing cost.

However, when the above-mentioned power transmission is performed with the external electrical connector, because the contact arm 223 of the spacer 22 is in contact with the top surface of the accommodating space 30 of the housing 3, a ground loop will be formed, which can improve the ground conduction path. And density, in order to truly export the electromagnetic wave and crosstalk interference generated during signal transmission.

In addition, the upper and lower end surfaces of the butt ends 212 of the plurality of terminals 21 are formed with arc-shaped or inclined guide surfaces 2125, which can increase the distance between the tongue plate 12 of the insulating base 1 through the guide surfaces 2125. Combination, and when the plurality of conductive terminals of the external electrical connector And when the plurality of grounding terminals touch the butt end 212 of the plurality of terminals 21, the butt end 212 will use the guide surface 2125 on the upper and lower sides to guide the plurality of conductive terminals and the plurality of grounding terminals to the upper and lower sides of the butt joint. The 2121 points on the surface can improve the fluency of docking and use.

Therefore, the above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. One side of the base 11 of the insulating seat body 1 of the present invention is extended with a tongue plate 12, and the insulating seat A plurality of terminals 21 of the terminal group 2 are combined in the body 1, and the terminals 21 have a base 211 combined in the base 11, and a butt end 212 that is combined with the tongue plate 12 extends from the side of the base 211, and the butt end The upper and lower sides of 212 are formed with abutting surfaces 2121 exposed on the upper and lower sides of the tongue plate 12, and the other side of the base 211 is extended with a connecting end 213 for forming an electrical connection with the preset circuit board, and the insulating seat body 1 and the terminal group 2 are covered with a shell 3, and its butt end 212 is to directly use the butt surface 2121 of the upper and lower sides to form electrical contact with the external electrical connector to transmit power, and then through the plurality of terminals 21 To increase the cross-sectional area when the current passes through, and then allow a larger current to pass through, thereby achieving the effect of being able to load a large current. Therefore, all structures and devices that can achieve the aforementioned effects should be covered by the present invention. This simple modification and Equivalent structural changes should be included in the patent scope of the present invention in the same way, and should be stated together.

To sum up, the electrical connector of the present invention can indeed achieve its function and purpose when used, so the present invention is an invention with excellent practicability. In order to meet the requirements for applying for an invention patent, an application is filed in accordance with the law, and it is hoped that The trial committee approved this case as soon as possible to protect the hard-working invention of the inventor. If the Jun Ju trial committee has any doubts, please feel free to send a letter to instruct. The inventor will do his best to cooperate, and I really appreciate it.

1: Insulation base

11: base

111: buttonhole

112: positioning column

12: tongue plate

121: Groove

2: Terminal group

21: terminal

211: base

212: Butt end

2121: docking surface

2122: perforation

2123: missing holes

2124: card slot

2125: guide surface

213: connection end

214: fixed end

22: spacer

221: Through hole

222: button slot

223: contact arm

224: Positioning end

225: binding end

3: shell

30:Accommodating space

301: opening

32: Pin

Claims (7)

An electrical connector includes an insulating base body, a terminal group and a housing, wherein: the insulating base body has a base, and extends from one side of the base to extend into the docking space of the preset electrical connector Tongue plate; the terminal group includes a plurality of terminals combined in the insulating seat, wherein the plurality of terminals respectively have bases combined in the base, and extend from one side of the plurality of bases to a plurality of butt ends combined in the tongue, And the upper and lower sides of the plurality of butt ends are formed with a butt surface that is exposed on the tongue plate and the lower two sides and forms an electrical connection with the plurality of conductive terminals on the upper and lower sides of the preset docking space, and then on the other side of the plurality of bases. There is at least one extended connection end for forming an electrical connection with the predetermined circuit board. The terminal group is located inside the tongue plate to be provided with a spacer, and the inside of the spacer is pierced with at least one through hole for at least one terminal to be inserted. , the interior of the butt end of the at least one terminal is provided with at least one through hole, at least one notch and a card slot for the filling of the insulating seat body to be combined and positioned, and the left and right tongue plates of the insulating seat body are two There are grooves on the side, and the spacer between the terminal groups is located at the two grooves, and there are multiple button grooves that are exposed; the hollow interior of the housing is formed with an accommodating space for the insulating base and the terminal group. , and one side of the accommodating space is provided with an opening for inserting the preset electrical connector. The electrical connector according to claim 1, wherein a plurality of buttonholes are provided on the surface of the base of the insulating base, and a plurality of buttonholes are provided on the top surface of the accommodating space of the housing. The electrical connector as claimed in claim 1, wherein the bottom surface of the base of the insulating base is protrudingly provided with a plurality of positioning posts positioned on the predetermined circuit board. The electrical connector as claimed in claim 1, wherein the bases of the two outer terminals are opposite to each other On the other side of the butt end and the connection end, there is a fixed end combined with the base. The electrical connector according to claim 1, wherein the top surface of the back side of the spacer between the terminal groups is provided with a contact arm that contacts the inner wall surface of the accommodation space of the housing. The electrical connector as described in claim 1, wherein the back side of the spacer between the terminal groups is extended with at least one positioning end positioned on the preset circuit board, and the left and right sides of the spacer are bent and extended by Combined with the joint end on the base. The electrical connector as claimed in claim 1, wherein a plurality of pins extending downward on the bottom surface of the housing are positioned on a predetermined circuit board.

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