CN110994227B

CN110994227B - Electrical connector

Info

Publication number: CN110994227B
Application number: CN201910489180.7A
Authority: CN
Inventors: 萧世伟; 萧裕三; 张衍智; 林威州; 陈玉科; 刘朦; 杨娜; 刘肖利
Original assignee: Fu Ding Precision Industry Zhengzhou Co Ltd; Hongteng Precision Technology Co Ltd
Current assignee: Fu Ding Precision Industry Zhengzhou Co Ltd; Hongteng Precision Technology Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2021-06-18
Anticipated expiration: 2039-06-06
Also published as: TW202103385A; CN110994227A

Abstract

The invention discloses an electric connector, which comprises a plurality of first terminals, a grounding plate and a grounding strip, wherein the first terminals are arranged in a row along the vertical direction and comprise opposite contact ends and welding ends, the first terminals comprise at least two grounding terminals, the grounding plate is provided with a plurality of first contact parts, the first contact parts are respectively contacted with the corresponding grounding terminals one by one, the electric connector also comprises a grounding strip arranged between the grounding terminals and the grounding plate, the grounding strip extends to form a plurality of first contact points and second contact points, the first contact points are respectively lapped with the grounding terminals one by one, and the second contact points are lapped with the grounding plate; the first contact point and the second contact point are arranged in the area between the first contact part and the welding end, and the first contact point and the second contact point can realize multi-point contact between the grounding terminal and the grounding strip, so that the resonance phenomenon can be improved.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly, to an electrical connector capable of improving resonance.

[ background of the invention ]

The electrical connector disclosed in the related prior art patent application publication No. CN105071072A includes a terminal assembly, where the terminal assembly includes an insulating body, and a plurality of signal terminals and a plurality of ground terminals fixed to the insulating body, the insulating body is provided with a docking cavity, and the terminals include contact portions exposed in the docking cavity, soldering portions extending out of the insulating body, and connecting portions connecting the contact portions and the soldering portions.

Therefore, there is a need for a new electrical connector to overcome the above-mentioned drawbacks.

[ summary of the invention ]

The invention aims to provide an electric connector which can improve resonance phenomenon.

The purpose of the invention is realized by the following technical scheme: an electric connector comprises a plurality of first terminals, a grounding plate and a grounding strip, wherein the first terminals are vertically arranged in a row and comprise opposite contact ends and welding ends, the first terminals comprise at least two grounding terminals, the grounding plate is provided with a plurality of first contact parts, the first contact parts are respectively contacted with the corresponding grounding terminals one by one, the electric connector also comprises a grounding strip arranged between the grounding terminals and the grounding plate, the grounding strip extends to form a plurality of first contact points and second contact points, the first contact points are respectively lapped with the grounding terminals one by one, and the second contact points are lapped with the grounding plate; the first and second contact points are arranged in an area between the first contact part and the welding end.

Further, the electric connector comprises a plurality of second terminals, the second terminals are arranged in a row along the vertical direction, and the grounding plate is positioned between the two rows of terminals; the grounding plate is provided with a plurality of second contact parts, the second contact parts are respectively contacted with grounding terminals arranged in the second terminals one by one, and another grounding strip is arranged between the second terminals and the grounding plate to realize mutual contact.

Furthermore, the grounding strip comprises a longitudinal central shaft and a plurality of arc-shaped parts, wherein the arc-shaped parts are bent from two opposite sides of the central shaft respectively in an arc shape, the grounding piece is C-shaped when viewed along the longitudinal direction of the central shaft, the adjacent arc-shaped parts are arranged at intervals, and the first contact point and the second contact point are respectively positioned on the arc-shaped parts.

Further, the arc-shaped portions have elasticity and the free ends of the arc-shaped portions on the same side are connected to each other by an elongated rod.

Furthermore, the ground strip includes the solid post and certainly the convex bulge of bamboo joint shape is personally submitted to the solid post surface, first, second contact point is located respectively the bulge.

Furthermore, the ground strip is wavy and has elasticity, and the first contact point and the second contact point are respectively located at the wave crest or the wave trough of the wave.

Further, the ground strip includes a main body portion, the first contact point is a pair of elastic fingers extending from two sides of the main body portion to the ground terminal, the second contact point is an elastic piece extending from the main body portion to the ground plate, and each pair of the elastic fingers are aligned in the extending direction of the ground terminal and are in contact with the same ground terminal.

Furthermore, the main body portion is a strip-shaped metal sheet extending in the arrangement direction perpendicular to the first terminals, the grounding strip is provided with a pair of elastic sheets, and the pair of elastic sheets are formed by tearing the main body portion and are opposite in extension direction.

Furthermore, the material of ground connection strip is copper, or electrically conductive plastic.

Further, the electrical connector further comprises conductive glue filled between the grounding strip and the grounding plate and between the grounding strip and the grounding terminal.

Further, the ground plate is embedded in the insulating plate to form a ground plate module, the first contact portion penetrates through the insulating plate, the insulating plate is provided with an accommodating groove, and the ground strip is assembled in the accommodating groove.

Further, the extending direction of the ground strip is perpendicular to the extending direction of the first terminal.

Further, the electric connector is provided with a plurality of the grounding bars, two of which are parallel to each other, and one of which is adjacent to the welding end and forms a certain angle with the two.

Compared with the prior art, the invention has the following beneficial effects: the electric connector realizes the multi-point contact between the grounding terminal and the grounding strip by arranging the plurality of first contact points on the grounding strip, realizes the multi-point contact between the grounding terminal and the grounding plate by the second contact point, can effectively improve the resonance phenomenon between the terminals and is beneficial to improving the signal transmission performance of the electric connector.

[ description of the drawings ]

Fig. 1 is a perspective view of the electrical connector of the present invention mounted on a circuit board.

Fig. 2 is a partially exploded view from another angle of fig. 1.

Fig. 3 is a partially exploded view of the electrical connector of the present invention shown in fig. 1.

Fig. 4 is a partially exploded view of the electrical connector of the present invention shown in fig. 1 from another angle.

Fig. 5 is a further partially exploded view of fig. 3.

Fig. 6 is a partially exploded view of the connection module according to the first to third embodiments of the present invention.

Fig. 7 is a perspective view of fig. 6 from another angle.

Fig. 8 is a further partially exploded view of fig. 6.

Fig. 9 is a perspective view of the grounding bar shown in fig. 8 in contact with the first terminal.

FIG. 10 is a perspective view of the connection module of the present invention with the insulator and insulator removed.

Fig. 11 is a perspective view of a ground strip in a first embodiment of the invention.

Fig. 12 is a perspective view of a ground strip in a second embodiment of the invention.

Fig. 13 is a perspective view of a ground strip in a third embodiment of the invention.

Fig. 14 is a partially exploded view of a connection module according to a fourth embodiment of the present invention.

Fig. 15 is a partially exploded view of fig. 14.

Fig. 16 is a perspective view of the grounding bar shown in fig. 15 in contact with the first terminal.

Fig. 17 is a perspective view of a ground strip in a fourth embodiment of the invention.

Fig. 18 is a perspective view of the connection module of the fourth embodiment of the present invention, cut along the line a-a in fig. 3.

Fig. 19 is a perspective view of the connection module of the fourth embodiment of the present invention, cut along the line B-B in fig. 3.

[ description of main element symbols ]

First terminal 301 of electrical connector 100

Second terminal 302 of insulating body 11

Contact end 31 of containing cavity 110

Chute 111 weld end 32

Connection module 12 insulating plate 4

The raised rib 120 receiving groove 40

Ground plate 5 of terminal module 121

First contact part 51 of grounding plate module 122

Second contact portion 52 of retaining groove 123

Metal housing 13

grounding bar

6, 6a, 6b, 6c

Center shaft 601 of salient point 130

The arcuate portion 602 of the first retaining member 14

The first retaining tab 141 is elongated rod 603

Second retaining piece 142 solid post 604

Protrusion 605 of second fastener 15

Body portion 606 of the cavity 150

Elastic finger 607 of third fastening piece 151

Insulator 2 spring 608

First contact point 61 of circuit board 200

Second contact point 62 of ground terminal 3

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

Hereinafter, a specific embodiment of the electrical connector of the present invention will be described with reference to fig. 1 to 19.

As shown in fig. 1 to 8, the present invention provides an electrical connector 100 for being mounted on a circuit board 200 to mate with a mating connector (not shown), the electrical connector 100 includes an insulating body 11, a connecting module 12 and a metal housing 13 covering the insulating body 11, the connecting module 12 includes two terminal modules 121 and a ground plate module 122 clamped between the two terminal modules, the insulating body 11 has a hollow receiving cavity 110, the connecting module 12 is assembled in the receiving cavity 110, the terminal modules 121 include an insulator 2 and a plurality of terminals fixed on the insulator 2, the two terminal modules 121 are a first terminal module and a second terminal module respectively, the first terminal module includes a plurality of first terminals 301, the second terminal module includes a plurality of second terminals 302, the first and

second terminals

301 and 302 each include a contact end 31 and a soldering end 32 opposite to each other, the contact end 31 is exposed in the accommodating cavity 110, the soldering end 32 extends out of the insulating body 2, and the ground plate module 122 includes an insulating plate 4 and a ground plate 5 embedded in the insulating plate 4.

The plurality of first terminals 301 are arranged in a row along a vertical direction, the plurality of first terminals 301 include at least two ground terminals 3, the ground plate 5 is provided with a plurality of first contact portions 51, the plurality of first contact portions 51 are respectively in one-to-one contact with the corresponding ground terminals 3, the electrical connector 100 further includes a ground strip 6 disposed between the ground terminals 3 and the ground plate 5, the ground strip 6 extends to form a plurality of first contact points 61 and second contact points 62, the plurality of first contact points 61 are respectively in one-to-one lap joint with the ground terminals 3, and the second contact points 62 are in lap joint with the ground plate 5; the first and second contact points 61, 62 are provided in the region between the first contact portion 51 and the welding tip 32. The first contact portion 51 penetrates through the insulating plate 4, the insulating plate 4 is provided with a receiving groove 40, and the grounding strip 6 is assembled in the receiving groove 40. In a preferred embodiment, the extending direction of the grounding bar 6 is perpendicular to the extending direction of the first terminal 301. The plurality of ground terminals 3 are electrically connected to the ground plate 5 through the first contact portions 51, and in addition, the plurality of ground terminals 3 are also in multi-point contact with the ground strip 6 through the plurality of first contact points 61 on the ground strip 6, and meanwhile, the second contact points 62 on the ground strip 6 are also in contact with the ground plate 5, so that the ground terminals 3 are further connected to the ground plate 5 in a multi-channel manner.

A plurality of the second terminals 302 are arranged in a row along the vertical direction, and the ground plate 5 is positioned between the two rows of the

terminals

301 and 302; the grounding plate 5 is provided with a plurality of second contact parts 52, the plurality of second contact parts 52 are respectively contacted with the grounding terminal 3 arranged in the second terminal 302 one by one, and another grounding strip 6 is arranged between the second terminal 302 and the grounding plate 5 to realize mutual contact. The material of the grounding strip of the present invention is copper or conductive plastic, and in a preferred embodiment, the electrical connector 100 further includes conductive glue filled between the grounding strip 6 and the grounding plate 5 and between the grounding strip 6 and the grounding terminal 3, so as to further ensure a stable contact therebetween. In a preferred embodiment, the extension direction of the grounding bar 6 is perpendicular to the extension direction of the second terminal 302.

The grounding bar 6 of the electrical connector 100 of the present invention can be configured in various forms, and the first to third embodiments of the grounding bar of the present invention will be described with reference to fig. 6 to 13. In the first embodiment of the present invention, the grounding bar 6a includes a longitudinal central shaft 601 and a plurality of arc-shaped portions 602 bent from two opposite sides of the central shaft 601 in an arc shape, the grounding member 6 is in a "C" shape when viewed along the longitudinal direction of the central shaft 601, adjacent arc-shaped portions 602 are disposed at intervals, and the first and second contact points 61 and 62 are respectively located on the arc-shaped portions 602. The arc-shaped part 602 has elasticity and the free ends of the arc-shaped part 602 on the same side are connected with each other by an elongated rod 603. in this embodiment, the grounding strip 6 is made of copper, so that the grounding strip 6 has better elasticity. In the second embodiment of the present invention, the ground strip 6a includes a solid pillar 604 and a protrusion 605 protruding from the surface of the solid pillar 604 in a bamboo joint shape, the first and second contact points 61 and 62 are respectively located on the protrusion 605, the material of the ground strip 6a is copper, which can ensure that the ground strip 6a has better elasticity, in other embodiments, the material of the ground strip 6a is conductive plastic, and if an inelastic conductive plastic is used, conductive glue can be filled between the ground strip 6a and the ground plate 5 and between the ground strip 6a and the ground terminal 3 to further ensure the contact stability. In the third embodiment of the present invention, the grounding bar 6b is wavy and has elasticity, and the first and second contact points 61 and 62 are respectively located at the wave crest or the wave trough of the wave, in this embodiment, the grounding bar 6b is made of copper, so as to ensure that the grounding bar 6b has good elasticity.

Fig. 14 to 19 show a fourth embodiment of the present invention. In the fourth embodiment of the present invention, the ground strip 6c includes a main body 606, the first contact points 62 are a pair of elastic fingers 607 extending from two sides of the main body 606 to the ground terminal 3, the second contact points 61 are elastic pieces 608 extending from the main body 606 to the ground plate 5, and each pair of the elastic fingers 607 is aligned in the extending direction of the ground terminal 3 and contacts with the same ground terminal 3. The main body 606 is a strip-shaped metal sheet extending in a direction perpendicular to the arrangement direction of the first terminals 301, the ground strip 6c is provided with a pair of elastic sheets 608, the elastic sheets 608 are a pair, and the pair of elastic sheets 608 are formed by tearing the main body 606 and extend in opposite directions. As shown in fig. 18 to 19, the grounding strip 6c is clamped between the grounding plate 5 and the grounding terminal 3, the spring sheet 608 is in elastic contact with the grounding plate 5, and the elastic fingers 607 are in elastic contact with the grounding terminal 3.

The electrical connector 100 of the present invention can be selectively provided with one or more grounding strips, or different grounding strips can be selected to be combined in the same electrical connector, so as to further realize multi-channel connection between the grounding terminal 3 and the grounding plate 5, and improve the resonance phenomenon of the electrical connector 100. As shown in fig. 6 to 10, the electrical connector 100 includes three kinds of grounding bars in the first to third embodiments of the present invention, two of which are parallel to each other, and one of which is adjacent to the soldering terminal 32 and forms an angle with the two; as shown in fig. 14 to 16, the electrical connector 100 includes two kinds of grounding bars in the third and fourth embodiments of the present invention, and in other embodiments, different combinations of grounding bars can be optionally provided.

Referring to fig. 1 to 5, the two opposite outer surfaces of the connecting module 12 are provided with a protruding rib 120, the inner surface of the insulating housing 11 includes a sliding groove 111 disposed and recessed corresponding to the protruding rib 120, and the protruding rib 120 can move along the sliding groove 111 to assemble the connecting module 12 into the receiving cavity 110 of the insulating housing 11. The electrical connector 100 further includes a first latching member 14 assembled to the insulating body 11 and a second latching member 15 assembled to the metal housing 13, wherein the first latching member 14 includes a first latching piece 141 protruding outward and a plurality of second latching pieces 142 protruding into the accommodating cavity 110, a protruding point 130 is disposed at an inner bottom of the metal housing 13, the second latching member 15 includes a hole 150 sleeved on the protruding point 130 and a third latching piece 151 protruding upward, and the insulating body 11 and the metal housing 13 are fastened and fixed to each other through the first latching piece 141 and the third latching piece 151. The outer surface of the connecting module 12 further includes a plurality of fastening grooves 123, and the second fastening pieces 142 and the plurality of fastening grooves 123 are fastened to each other so as to stably assemble the connecting module 12 in the insulating body 11.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims

1. The utility model provides an electric connector, includes a plurality of first terminals and ground plate, a plurality of first terminals are arranged into one row and are included relative contact tip and welding end along vertical direction, and a plurality of first terminals include two at least ground terminal, the ground plate is equipped with a plurality of first contact site, and a plurality of first contact site do not contact with corresponding ground terminal one by one, its characterized in that: the electric connector also comprises a grounding strip with electric conductivity, which is arranged between the grounding terminal and a grounding plate, wherein the grounding strip extends to form a plurality of first contact points and second contact points, the plurality of first contact points are respectively lapped with the grounding terminal one by one, and the second contact points are lapped with the grounding plate; the electric connector is provided with a plurality of grounding strips, a first terminal and the ground plate are respectively arranged in different insulating plates, the insulating plates are provided with accommodating grooves, the grounding strips are assembled in the accommodating grooves, and conductive glue is arranged between the grounding strips and the ground plate and between the grounding strips and the grounding terminals.

2. The electrical connector of claim 1, wherein: the electric connector comprises a plurality of second terminals, the second terminals are arranged in a row along the vertical direction, and the grounding plate is positioned between the two rows of terminals; the grounding plate is provided with a plurality of second contact parts, the second contact parts are respectively contacted with grounding terminals arranged in the second terminals one by one, and another grounding strip is arranged between the second terminals and the grounding plate to realize mutual contact.

3. The electrical connector of claim 1, wherein: the grounding strip comprises a lengthwise central shaft and a plurality of arc-shaped parts, wherein the arc-shaped parts are bent at two opposite sides of the central shaft respectively, the grounding strip is C-shaped when viewed along the lengthwise direction of the central shaft, the adjacent arc-shaped parts are arranged at intervals, and the first contact point and the second contact point are respectively located on the arc-shaped parts.

4. The electrical connector of claim 3, wherein: the curved portions are resilient and the free ends of the curved portions on the same side are connected to each other by an elongate rod.

5. The electrical connector of claim 1, wherein: the grounding strip comprises a solid column and a protruding portion protruding from the surface of the solid column in a bamboo joint shape, and the first contact point and the second contact point are respectively located on the protruding portion.

6. The electrical connector of claim 1, wherein: the grounding strip is wavy and has elasticity, and the first contact point and the second contact point are respectively located at the wave crest or the wave trough of the wave.

7. The electrical connector of claim 1, wherein: the grounding strip comprises a main body part, the first contact points are a pair of elastic fingers extending from two sides of the main body part to the grounding terminal, the second contact points are elastic pieces extending from the main body part to the grounding plate, and each pair of elastic fingers are aligned in the extending direction of the grounding terminal and are in contact with the same grounding terminal.

8. The electrical connector of claim 7, wherein: the main body part is a strip-shaped metal sheet extending in the arrangement direction perpendicular to the first terminals, the grounding strip is provided with a pair of elastic sheets, and the pair of elastic sheets are formed by tearing the main body part and are opposite in extension direction.

9. The electrical connector of any one of claims 1-8, wherein: the grounding strip is made of copper or conductive plastic.

10. The electrical connector of claim 1, wherein: the ground plate is embedded in the insulating plate to form a ground plate module, and the first contact part penetrates through the insulating plate.

11. The electrical connector of claim 10, wherein: the extending direction of the grounding strip is perpendicular to the extending direction of the first terminal.

12. The electrical connector of claim 10, wherein: the electric connector is provided with a plurality of the grounding strips, wherein two grounding strips are parallel to each other, and one grounding strip is adjacent to the welding end and forms a certain angle with the two grounding strips.