CN109193209B

CN109193209B - Electrical connector

Info

Publication number: CN109193209B
Application number: CN201811065875.4A
Authority: CN
Inventors: 金左锋
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2018-09-13
Filing date: 2018-09-13
Publication date: 2020-06-26
Anticipated expiration: 2038-09-13
Also published as: CN109193209A

Abstract

The invention discloses an electric connector, which comprises a body, wherein a row of first terminals are arranged on the body, each first terminal is provided with a base part, a contact part is extended from one end of the base part and is exposed out of the body and is connected with a butting element, a guide part is extended from the other end of the base part and is exposed out of the body and is connected with an electronic element, and a bending part is arranged on the base part. The first terminal is divided into a signal terminal and a grounding terminal, a plurality of grounding terminals are connected through a connecting piece, and the length of the signal terminal is the same as that of the grounding terminal after the signal terminal and the grounding terminal are unfolded. In actual use, the connecting piece is connected with the adjacent grounding terminals, so that the grounding effect of the grounding terminals is enhanced, the transmission quality and the transmission rate are improved, meanwhile, the lengths of transmission paths of current passing through the two terminals with different functions are the same, the synchronism of signal transmission is realized, the resonance is reduced, and the high-frequency performance of the electric connector is ensured.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector ensuring high frequency performance.

Background

Nowadays, electrical connectors are used in various fields of life, and with the development of scientific technology, the exchange rate between information is faster and faster, so the requirement for electrical connectors is higher and higher, and the electrical connectors are required to support the fast transmission rate and improve the signal transmission stability of the electrical connectors. An electrical connector for electrically connecting a mating component and an electronic component is known, which includes a body, a plurality of terminals disposed in the body in two rows, the terminals having a base portion, a contact portion extending from one end of the base portion for electrically connecting the mating component, a conductive portion extending from the other end of the base portion for exposing the body and being in conductive contact with the electronic component, the plurality of terminals including a plurality of signal terminals and a plurality of ground terminals, the signal terminals and the ground terminals in the same row being alternately arranged, adjacent ground terminals being connected by a connecting member, the signal terminals being disposed between the adjacent ground terminals for not contacting the connecting member, the signal terminals being provided with a bent portion for yielding the connecting member, the ground terminals and the signal terminals having different lengths after being unfolded, resulting in different path lengths of current transmitted between the signal terminals and the ground terminals during high-speed current transmission, resonance occurs, affecting the high frequency characteristics of the electrical connector.

Therefore, in view of the above problems, a new electrical connector needs to be designed to solve the above drawbacks.

Disclosure of Invention

The invention provides an electric connector which can improve the signal transmission rate and ensure the stable signal transmission.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electrical connector for electrically connecting a mating component and an electronic component, comprising: a body; a row of first terminals disposed on the body, each first terminal having a base portion disposed on the body, a contact portion extending from one end of the base portion and exposed on the body for connecting with the butting element, a connecting portion extending from the other end of the base portion and exposed on the body for connecting with the electronic element, and a bending portion protruding toward the base portion in a direction perpendicular to the arrangement direction of the first terminals; the first terminal includes a plurality of ground terminal and an at least signal terminal, at least one the signal terminal is located adjacent two between the ground terminal, adjacent two connect through a connecting piece between the ground terminal, the signal terminal the kink is used for letting to be located the connecting piece, the ground terminal with signal terminal expandes the back length the same.

Further, the bending part of the ground terminal and the bending part of the signal terminal are arranged in opposite protruding directions.

Further, the body has a front end and a rear end opposite to the front end, the contact portion extends from the base portion toward the front end, the bent portion of the signal terminal is protruded toward the front end, and the bent portion of the ground terminal is protruded toward the rear end.

Further, the connecting piece is connected with the bending parts of two adjacent grounding terminals.

Further, two adjacent ground terminals and the connecting piece are integrally formed.

Further, two signal terminals are arranged between two adjacent ground terminals and used for transmitting differential signals.

Further, the base portion is provided with a wide portion wider than other portions of the base portion, the base portion is bent at the wide portion, and the base portion is substantially L-shaped.

Furthermore, the body is provided with a front end and a slot which is recessed backwards from the front end and is used for accommodating the butt joint element, and the contact part protrudes into the slot to be electrically connected with the butt joint element.

Furthermore, the body is provided with a fool-proof part positioned in the slot, the fool-proof part divides the body into a first slot and a second slot, the first slot and the second slot respectively and correspondingly accommodate a plurality of the grounding terminals, the plurality of grounding terminals corresponding to the first slot are connected with the connecting piece into a whole, and the plurality of grounding terminals corresponding to the second slot are connected with the other connecting piece into a whole.

Further, the body has with a rear end that the front end is relative to the setting, the body has a plurality of terminal grooves certainly the rear end towards the front end is concave establish and with the slot intercommunication, first terminal installation extremely the terminal groove, the body has a mounting groove intercommunication a plurality of the terminal groove, the connecting piece install in the mounting groove.

Further, at least one side of the body is provided with a fixing groove which is communicated with one of the terminal grooves located on the outermost side, and one of the ground terminals located on the outermost side of the first terminals extends from the base to form a fixing section which is fixed on the fixing groove.

Further, the fixing groove is formed by being recessed forward from the rear end.

Further, the fixing groove and the mounting groove are located on the same straight line.

Furthermore, the body is provided with a mounting hole from both sides of the front end in a concave manner, the electric connector further comprises a locking piece arranged corresponding to each mounting hole, and the locking piece is fixedly arranged in the mounting hole and used for fixedly holding the butting element.

The body is provided with a first terminal and a second terminal, the first terminal and the second terminal are arranged in parallel on the body, and the first terminal and the second terminal are arranged in a staggered mode in the arrangement direction.

Compared with the prior art, the electric connector designed by the invention has the following beneficial effects:

the invention designs that a row of first terminals comprise at least one signal terminal and a plurality of grounding terminals, the adjacent grounding terminals are connected through a connecting piece, as the base parts of the signal terminal and the grounding terminal are respectively provided with a bending part, the bending parts of the signal terminal are used for leading the connecting piece, and the base parts of the grounding terminals are simultaneously provided with the bending parts, the lengths of the signal terminal and the grounding terminal after being unfolded are equal, so that the paths of current transmitted in the signal terminal and the grounding terminal are equal, the transmission synchronism is realized, the resonance is reduced, and the high-frequency performance is ensured.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of the electrical connector of the present invention;

FIG. 2 is a perspective assembly view of FIG. 1;

FIG. 3 is a perspective view of FIG. 2 in another orientation;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a front view of FIG. 3;

FIG. 6 is a side view of FIG. 2;

fig. 7 is a perspective view of a row of first terminals of fig. 2;

fig. 8 is a side view of two rows of terminals of fig. 2;

fig. 9 is an expanded view of the ground terminal and the signal terminal of the first terminal in fig. 1;

fig. 10 is a perspective view of the second terminal of fig. 1.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

electrical connector 10	Body 1	Front end 11
			Socket 12	First slot 121	Second slot 122
Fool-proof part 13	Mounting hole 14	Terminal groove 15
			Horizontal groove 151	Vertical slot 152	Receiving hole 16
Rear end 17	Mounting groove 18	Fixing groove 19
			Fastener 2	First metal sheet 21	Locking part 211
Second metal sheet 22	Holding part 221	First terminal 3
			Ground terminal 3a	Signal terminal 3b	Base	31
Horizontal part 311	Vertical portion 312	Bent portion 3121
			Holding section 3122	Contact part 32	Lead-in part 33
Second terminal 4	Main body 41	Catch 411
			Abutment 42	Solder tail 43	Connecting piece 5

[ detailed description ] embodiments

The invention will now be described in further detail with reference to specific embodiments and illustrations for a better understanding of the invention.

For convenience of description, the x-axis is defined as the front-back direction, the y-axis is defined as the left-right direction, and the z-axis is defined as the up-down direction.

Referring to fig. 1, an electrical connector 10 according to the present invention is shown for connecting a docking component (not labeled) and an electronic component (not labeled), in the present embodiment, the docking component is an electronic card, the electronic component is a circuit board, and the electrical connector 10 is mounted on the electronic component from top to bottom. The electrical connector 10 includes a body 1, two locking members 2 fixed to the body 1, a row of first terminals and a row of second terminals disposed on the body 1. One row of the first terminals comprises a plurality of first terminals 3 and one row of the second terminals comprises a plurality of second terminals 4.

Referring to fig. 1 and 3, the main body 1 has a front end 11, a slot 12 is recessed from the front end 11 for accommodating the docking element, a fool-proof portion 13 is disposed in the slot 12 of the main body 1 to divide the slot 12 into a first slot 121 and a second slot 122, and the length of the first slot 121 in the left-right direction is longer than the length of the second slot 122 in the left-right direction. Each of the two sides of the front end 11 is recessed backward to form a mounting hole 14, and the mounting hole 14 penetrates through the body 1 in the front-rear direction.

Referring to fig. 3 and 4, the body 1 is provided with a plurality of terminal grooves 15 and a plurality of receiving holes 16, which are respectively disposed in the first slot 121 and the second slot 122 in an upper row and a lower row, the body 1 further has a rear end 17 disposed opposite to the front end 11, the terminal grooves 15 include a horizontal groove 151 and a vertical groove 152, the horizontal groove 151 extends in the front-rear direction and is connected to the vertical groove 152 in the front-rear direction, the horizontal groove 151 is disposed above the slot 12, the front end of the horizontal groove 151 is connected to the slot 12 in the upper-lower direction, and the vertical groove 152 is formed by recessing the rear end 17 in the front direction. The receiving hole 16 is formed by being recessed backward from the front end 11 and is communicated with the slot 12 upward.

Referring to fig. 2 and 3, the rear end 17 is further provided with a mounting groove 18 corresponding to the left and right sides of the fool-proof portion 13, and each mounting groove 18 communicates with a plurality of corresponding vertical grooves 152.

Referring to fig. 1, 3 and 6, a plurality of fixing grooves 19 are recessed forward from the rear end 17, in this embodiment, four fixing grooves 19 are recessed on the rear end 17, two fixing grooves 19 are disposed on the left side of the fool-proof portion 13 and distributed on two opposite sides of the first slot 121, the other two fixing grooves 19 are disposed on the right side of the fool-proof portion 13 and distributed on two opposite sides of the second slot 122, each fixing groove 19 is communicated with the adjacent vertical groove 152, and the fixing grooves 19 and the mounting grooves 18 are located on the same straight line.

Referring to fig. 1 and 3, the locking members 2 are held in the corresponding mounting holes 14 and are used for locking the docking element. The locking member 2 includes a first metal sheet 21 and a second metal sheet 22, one end of the first metal sheet 21 and one end of the second metal sheet 22 after being stacked are inserted into the mounting hole 14 from front to back together and fixed with the body 1, and a locking portion 211 is disposed at the front end of the first metal sheet 21 for locking the butt-joint element. The second metal sheet 22 has a holding portion 221 formed by extending downward, the holding portion 221 is located below and behind the locking portion 211, and the holding portion 221 is fixed to the electronic component by soldering. First sheetmetal 21 with second sheetmetal 22 is sheet metal stamping forming, has certain elasticity respectively, for the centre gripping the butt joint component provides certain clamping-force, has guaranteed the stability after the butt joint component grafting, the independent shaping of hasp piece 2 is convenient for install and change, has practiced thrift the cost.

Referring to fig. 1, fig. 3 and fig. 4, a plurality of the first terminals 3 are correspondingly accommodated in a plurality of the terminal slots 15, and a plurality of the second terminals 4 are correspondingly accommodated in a plurality of the accommodating holes 16. The plurality of first terminals 3 and the plurality of second terminals 4 are arranged in a staggered manner in the left-right direction.

Referring to fig. 4, 7 and 8, the first terminal 3 includes a base portion 31, and the base portion 31 includes a horizontal portion 311 and a vertical portion 312 connected to each other, and both are bent into an L shape. The horizontal portion 311 is received in the horizontal groove 151, the vertical portion 312 is received in the vertical groove 152, and the base portion 31 has a wide portion (not numbered) including the horizontal portion 311 and the upper end of the vertical portion 312, which is wider than other sections of the base portion 31. A bent portion 3121 is convexly disposed on the vertical portion 312, the bent portion 3121 is substantially in a horizontal "U" shape, and the bent portion 3121 is disposed near the lower end of the vertical portion 312. A contact portion 32 is formed by bending and extending forward from the front end of the horizontal portion 311, and the contact portion 32 protrudes into the slot 12 for electrically contacting with the docking element. A conductive portion 33 extends downward from the bending portion 3121 and then backward, the conductive portion 33 is exposed outside the insulating body 1, and is electrically connected to the electronic component by soldering.

Referring to fig. 7 and 8, the first terminals 3 include two types of terminals with different functions, and in this embodiment, the first terminals include a plurality of ground terminals 3a and a plurality of signal terminals 3b, and the ground terminals 3a and the signal terminals 3b have substantially the same structure. The bent portion 3121 of the ground terminal 3a is formed to protrude toward the front end 11, and the signal terminal 3b is formed to protrude toward the rear end 17, that is, the protruding directions of the bent portions 3121 of the first terminals 3 of the two types are opposite, and the bent portion 3121 of the ground terminal 3a and the bent portion 3121 of the signal terminal 3b are located at the same height.

Referring to fig. 7, two signal terminals 3b are located between two adjacent ground terminals 3a, and the two ground terminals 3a are connected by a connecting member 5, so that the shielding effect on the signal terminals 3b is increased. In this embodiment, the connecting member 5 and the ground terminal 3a are formed by stamping the same metal plate, in other embodiments, the connecting member 5 and the ground terminal 3a may be formed separately and then welded or clamped to each other or abutted to each other.

Referring to fig. 3, 6 and 7, all the ground terminals 3a located in the first slot 121 are connected to the connecting members 5 to form an integral structure, and each of the outermost ground terminals 3a in the first slot 121 extends horizontally from the bent portion 3121 to form a holding section 3122, and the holding sections 3122 and the connecting members 5 are located on two opposite sides of the same ground terminal 3 a. All the ground terminals 3a in the second slot 122 are integrally connected to the connecting members 5, and each of the outermost ground terminals 3a in the second slot 122 extends horizontally from the bent portion 3121 to form a holding section 3122. The connecting member 5 is not connected between one of the ground terminals 3a located in the first insertion groove 121 and adjacent to the fool-proof portion 13 and one of the ground terminals 3a located in the second insertion groove 122 and adjacent to the fool-proof portion 13. Each of the holding sections 3122 is installed within the corresponding fixing groove 19.

Referring to fig. 7 and 8, the connecting member 5 extends from the bent portion 3121 of the ground terminal 3a to the bent portion 3121 of the other ground terminal 3a, and the bent portion 3121 of the signal terminal 3b and the bent portion 3121 of the ground terminal 3a are located at the same height. In this embodiment, the bending portion 3121 of the ground terminal 3a is protruded rearward, and the bending portion 3121 of the signal terminal 3b is protruded forward, so that the bending portion 3121 of the signal terminal 3b is located at the connecting member 5, and the distance between the connecting member 5 and the signal terminal 3b is increased, so as to improve the shielding effect, and meanwhile, the bending portion 3121 is provided for both the ground terminal 3a and the signal terminal 3b, so that the signal terminal 3b does not need to be too long to meet the setting of the bending portion 3121, and is separated from the connecting member 5 to avoid short circuit, so that the signal terminal 3b can easily meet the high frequency requirement.

Referring to fig. 9, the signal terminal 3b and the ground terminal 3a have the same length after being unfolded, when the electrical connector 10 is used, current is transmitted at a high speed in the electrical connector 10, and the path lengths of the current transmitted in the signal terminal 3b and the ground terminal 3a are the same, so that the transmission frequencies are synchronized, resonance is reduced, crosstalk and characteristic impedance during transmission are reduced, and high-frequency performance is ensured.

Referring to fig. 3 and 10, the second terminal 4 has a main body 41, the main body 41 is bent for multiple times to form an S shape, an abutting portion 42 extends from an upper end of the main body 41 to protrude into the slot 12 for electrical connection with the docking element, the main body 41 has a holding portion 411 for being fixed in the receiving hole 16, and a solder leg 43 extends forward from the holding portion 411 to protrude into the main body 1 for electrical connection with the electronic element by soldering.

In summary, the electrical connector of the present invention has the following advantages:

1. the extension lengths of the grounding terminal 3a and the signal terminal 3b are the same, when current is transmitted at a high speed in the electric connector 10, and the current is output through the signal terminal 3b and then input through the grounding terminal 3a, the paths of the current transmitted through the signal terminal 3b and the grounding terminal 3a are the same, so that the current is in step with the input and the output, the synchronism is realized, the resonance effect is reduced, and the high-frequency performance of the electric connector 10 is ensured.

2. The ground terminal 3a and the signal terminal 3b are both provided with the bending portion 3121, and the bending directions are opposite, and the bending portion 3121 of the ground terminal 3a and the bending portion 3121 of the signal terminal 3b are located at the same height, so that the signal terminal 3b does not need to be too long to meet the setting of the bending portion 3121, and is located at the connecting piece 5, the distance from the connecting piece 5 is increased, the situation that the signal terminal 3b is deviated after being shaken or vibrated and contacts the connecting piece 5 is avoided, the signal transmission stability is ensured, and the signal terminal 3b can easily meet the requirement of high frequency.

3. The connecting member 5 and the bent portion 3121 extending from the bent portion 3121 of the ground terminal 3a to the other ground terminal 3a connect the ground terminals 3a in the same row into a whole, so as to improve the effect of shielding the signal terminal 3b, reduce the undesirable resonance peak in the signal terminal 3b, and improve the quality and transmission rate of signal transmission.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector for electrically connecting a mating component and an electronic component, comprising:

a body;

a row of first terminals disposed on the body, each first terminal having a base portion disposed on the body, a contact portion extending from one end of the base portion and exposed on the body for connecting with the butting element, a connecting portion extending from the other end of the base portion and exposed on the body for connecting with the electronic element, and a bending portion protruding toward the base portion in a direction perpendicular to the arrangement direction of the first terminals;

the first terminal comprises a plurality of grounding terminals and at least one signal terminal, at least one signal terminal is located between two adjacent grounding terminals, the bending part of each grounding terminal is opposite to the bending part of each signal terminal in protruding arrangement direction, two adjacent grounding terminals are connected through a connecting piece, the connecting piece is connected with the bending parts of the two adjacent grounding terminals, the bending parts of the signal terminals are used for yielding to the connecting piece, and the grounding terminals are the same in length after being unfolded with the signal terminals.

2. The electrical connector of claim 1, wherein: the body has a front end and a rear end opposite to the front end, the contact portion extends from the base portion toward the front end, the bent portion of the signal terminal is protruded toward the front end, and the bent portion of the ground terminal is protruded toward the rear end.

3. The electrical connector of claim 1, wherein: two adjacent ground terminals and connecting piece integrated into one piece.

4. The electrical connector of claim 1, wherein: two signal terminals are arranged between two adjacent ground terminals and used for transmitting differential signals.

5. The electrical connector of claim 1, wherein: the base part is provided with a wide part which is wider than other parts of the base part, the base part is bent at the wide part, and the shape of the base part is approximately L-shaped.

6. The electrical connector of claim 1, wherein: the body is provided with a front end and a slot which is recessed backwards from the front end and is used for accommodating the butt joint element, and the contact part protrudes into the slot to be electrically connected with the butt joint element.

7. The electrical connector of claim 6, wherein: the body is provided with a fool-proof part which is positioned in the slot and divides the body into a first slot and a second slot, the first slot and the second slot respectively and correspondingly accommodate a plurality of grounding terminals, the grounding terminals corresponding to the first slot are connected with the connecting piece into a whole, and the grounding terminals corresponding to the second slot are connected with the other connecting piece into a whole.

8. The electrical connector of claim 6, wherein: the body has with a rear end that the front end set up relatively, the body has a plurality of terminal grooves certainly the rear end towards the front end is concave establish and with the slot intercommunication, first terminal installation extremely the terminal groove, the body has a mounting groove intercommunication a plurality of the terminal groove, the connecting piece install in the mounting groove.

9. The electrical connector of claim 8, wherein: at least one side of the body is provided with a fixing groove which is communicated with one terminal groove positioned on the outermost side, one grounding terminal on the outermost side of the first terminals extends from the base part to form a fixing section, and the fixing section is fixed on the fixing groove.

10. The electrical connector of claim 9, wherein: the fixing groove is formed by being concavely arranged from the rear end to the front.

11. The electrical connector of claim 9, wherein: the fixing groove and the mounting groove are located on the same straight line.

12. The electrical connector of claim 6, wherein: the body is provided with a mounting hole from both sides of the front end in a concave mode, the electric connector further comprises a locking piece arranged corresponding to each mounting hole, and the locking piece is fixedly arranged in the mounting hole and used for fixedly holding the butting element.

13. The electrical connector of claim 1, wherein: the terminal structure further comprises a row of second terminals, the second terminals and the first terminals are arranged in the body in parallel, and the first terminals and the second terminals are arranged in a staggered mode in the arrangement direction.