TW201707283A - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector. The electrical connector includes an insulative housing and a number of contacts. The insulaitve housing has a base and a mating portion forwardly extending from the base. The base defines a plurality of contact slots extending along a front to back direction. The contacts are divided in a first group, a second group and a third group. Each contact has a retaining portion retained in the contact slot, a contact portion extending into the mating portion, a tail portion extending to a rear side of the base. The base further defines a number of position slots which are perpendicular to the contact slots. The tail portions are received in the position slots. The position slots are formed with supporting surfaces for supporting the tail portions. The supporting surfaces are located at a same plane.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector that can effectively ensure the coplanarity of a conductive terminal.

With the rapid development of the electronics industry, electrical connectors have been widely used as a connection device for transmitting digital signals, audio signals, and image signals. With the development of science and technology, the requirements for signal transmission speed, security and size of electrical connectors are gradually increasing, and thus more and more electrical connectors need to accommodate more conductive terminals for signal transmission. Therefore, in the case where the size of the electrical connector is small, the arrangement of the terminals is also diversified, which in turn leads to difficulty in positioning the solder joints of the terminals of the electrical connector and the coplanarity is difficult to secure.

In view of this, it is necessary to further improve the conventional electrical connector to solve the above problems.

It is an object of the present invention to provide an electrical connector that effectively ensures the coplanarity of the conductive terminals.

In order to achieve the above object, the present invention relates to an electrical connector comprising: an insulative housing having a base and an abutting portion extending forward from the base, the base being provided with a plurality of terminal fixing grooves extending forward and backward, the butt portion having a longitudinal a long extending butt groove and a first wall and a second wall oppositely disposed on opposite sides of the docking groove, the second wall has a groove communicating with the docking groove and a first portion and a second portion formed by the groove spacing, first The wall has a first extension portion disposed opposite to the recess; the conductive terminal includes a plurality of first terminal groups, second terminal groups, and third terminal groups respectively disposed on the first portion, the second portion, and the first extension portion, each The conductive terminal has a fixing portion fixed in the fixing groove of the terminal, a contact portion extending from one end of the fixing portion to the abutting portion and a soldering leg extending from the other end of the fixing portion to the rear side of the base; wherein the rear side of the base is further provided with a plurality of legs a positioning slot corresponding to the terminal fixing slot, the positioning slot is disposed perpendicular to the terminal fixing slot, and the soldering legs are respectively received in the positioning slot, and the plurality of positioning slots are respectively Abutting the inner portion of the support surface is provided with a support of the foot pad, the support surface on the same plane.

According to a further improvement of the present invention, the conductive terminal has a plurality of pairs of differential signal terminals and a ground terminal disposed between the adjacent two pairs of differential signal terminals, wherein the differential signal terminals and the ground terminals are distributed in the first terminal group and In the third terminal group, the electrical connector further includes a grounding member having a main body portion fixed to the base portion and a plurality of first connecting legs extending from the main body portion, the first connecting leg being at least partially grounded The terminals abut.

According to a further improvement of the present invention, the base portion is further provided with a communication slot communicating with a part of the terminal fixing groove in the thickness direction of the insulating body, the communication groove being disposed corresponding to the at least part of the grounding terminal, the body portion along the insulating body The thickness direction is spaced apart from the fixing portion of the plurality of conductive terminals, the first connecting leg is provided with a soldering portion on the same plane as the soldering leg of the at least part of the grounding terminal, and a spring arm extending from the soldering portion into the connecting groove The elastic arm is formed with an abutting portion that protrudes toward the fixing portion of the at least part of the grounding terminal, and the abutting portion abuts against the fixing portion of the at least part of the grounding terminal.

As a further improvement of the present invention, the main body portion of the grounding member is fixedly disposed behind the first portion and located outside the terminal fixing slot, and the at least part of the grounding terminal is a grounding terminal in the first terminal group, the first terminal group The soldering leg of the middle grounding terminal extends in the same direction as the soldering portion of the first connecting leg on the grounding element.

According to a further improvement of the present invention, the grounding element is further provided with a plurality of second connecting legs extending from the main body, the second connecting legs extending toward the free ends of the grounding pins of the third terminal group Reciprocal.

As a further improvement of the present invention, the second connecting leg is located on the same plane as the soldering leg of the grounding terminal in the third terminal group.

As a further improvement of the present invention, the second terminal set includes a plurality of power terminals, and the electrical connector further includes a bus bar fixed to the base and abutting with the solder legs of at least a portion of the power terminals.

As a further improvement of the present invention, the bus bar is disposed near the end of the solder tail, and the base is provided with a fixing groove formed by the recess from the rear side, and the bus bar is received in the fixing groove and formed at the rear end. The gap of the soldering leg is received, and the notch of the bus bar communicates with the positioning groove along a thickness direction of the insulating body.

As a further improvement of the present invention, the inner wall surface of the notch adjacent to the abutting portion is located on the same plane as the supporting surface.

As a further improvement of the present invention, the first wall further includes a second extension disposed opposite to the first portion, the conductive terminal further comprising a fourth terminal group fixed on the second extension, the fourth terminal group including And a pair of differential signal terminals and a detecting terminal, and the soldering legs of the conductive terminals in the fourth terminal group are spaced apart from the soldering legs of the conductive terminals in the first terminal group.

According to the present invention, a plurality of positioning grooves corresponding to the terminal fixing grooves are further disposed on the rear side of the base of the insulating body, so that the soldering legs of the conductive terminals are respectively received in the positioning grooves, thereby positioning the soldering legs of the conductive terminals to prevent the solder feet Moving and contacting each other for short circuit; in addition, the supporting surface of the positioning groove for supporting the soldering foot is disposed on the same plane, thereby enabling the positioning soldering feet to be located on the same plane, thereby effectively controlling the conductive terminals in different groups. The coplanarity of the solder fillet improves the soldering effect.

100‧‧‧Electrical connector
1‧‧‧Insulating body
11‧‧‧ base
110‧‧‧ Housing Department
111‧‧‧Locking slot
112‧‧‧through slot
12‧‧‧Docking Department
121‧‧‧ docking slot
122‧‧‧ first wall
1221‧‧‧First Extension
1222‧‧‧Second Extension
123‧‧‧ second wall
1231‧‧‧ Groove
1232‧‧‧Part 1
1233‧‧‧Part II
13‧‧‧ Guide column
14‧‧‧ terminal fixing slot
15‧‧‧ accommodating slots
16‧‧‧fixed slot
17‧‧‧Boss
171‧‧‧ positioning slot
172‧‧‧Support surface
18‧‧‧Connecting slot
2‧‧‧Electrical terminals
20‧‧‧First terminal group
21‧‧‧Second terminal group
22‧‧‧ Third terminal group
23‧‧‧fourth terminal group
24‧‧‧Fixed Department
25‧‧‧Contacts
26‧‧‧ solder feet
3‧‧‧ Grounding components
31‧‧‧ Main body
32‧‧‧First connecting leg
321‧‧‧Weld Department
322‧‧‧Bounce arm
3221‧‧‧Apartment
33‧‧‧second connecting leg
4‧‧‧Confluence
41‧‧‧ gap
5‧‧‧Back cover
51‧‧‧ cover
511‧‧‧ openings
52‧‧‧Bucking arm
53‧‧‧ side

The first figure is a perspective view of a preferred embodiment of the electrical connector of the present invention.
The second figure is a perspective view of another angle after the electrical connector is removed from the back cover shown in the first figure.
The third figure is an exploded perspective view of the electrical connector shown in the first figure.
The fourth figure is an exploded perspective view of another angle of the electrical connector shown in the first figure.
The fifth figure is a connection diagram of the conductive terminals, the grounding elements and the bus bars in the electrical connector shown in the first figure.

Referring to the first to fifth embodiments, a preferred embodiment of the electrical connector 100 of the present invention is shown. In the embodiment, the electrical connector 100 is a line end SATA connector. The electrical connector 100 includes an insulative housing 1 , a plurality of conductive terminals 2 fixed in the insulative housing 1 , a grounding element 3 , a bus bar 4 , and a back cover 5 that is fastened to the rear side of the insulative housing 1 .

As shown in the first to fourth figures, the insulative housing 1 is generally elongated and has a base portion 11, an abutting portion 12 extending forward from the base portion 11, and extending forward from the front end portions of the base portion 11, respectively. Two guide posts 13. The guide posts 13 are respectively connected to both sides of the abutting portion 12 in the longitudinal direction to guide the docking of the mating connector (not shown).

The abutting portion 12 has a longitudinally extending butting groove 121 and a first wall 122 and a second wall 123 opposite to the upper and lower sides of the mating groove 121. The docking slot 121 is open to the front and is used to receive the docking connector. The second wall 123 has a groove 1231 communicating with the docking groove 121 and a first portion 1232 and a second portion 1233 which are formed by the groove 1231. The conductive terminal is not disposed in the groove 1231 and penetrates the front end surface of the insulating body 1 in the mating direction. The first wall 122 has a first expanded portion 1221 disposed opposite to the groove 1231 in the thickness direction and a second expanded portion 1222 disposed opposite to the first portion 1232 in the thickness direction. The first expansion portion 1221 and the second expansion portion 1222 have a certain height in the thickness direction and the width direction of the insulative housing 1 such that the thickness of the portion is thicker than other portions of the first wall 122.

A receiving portion 110 is formed in the middle of the rear side of the base portion 11 in the front-rear direction, and a plurality of latching grooves 111 are respectively disposed on the upper side and the lower side of the thickness direction, and the left and right sides of the longitudinal direction are respectively formed through the receiving portion 110. The slot 112 is provided. The through slot 112 is used to lead out a wire (not shown) that electrically connects the conductive terminal 2 . The back cover 5 is provided with a cover body 51 for covering the rear side of the accommodating portion 110, a plurality of latching arms 52 extending forward from the upper and lower sides of the cover body 51, and two sides extending forward from the two sides of the cover body 51, respectively. 53. The latching arm 52 is configured to be fastened to the latching slot 111 to fix the rear cover 5 to the rear side of the insulative housing 1 . The cover 51 is provided with an opening 511 penetrating forward and backward at a position close to the side portions 53. The opening 511 is in communication with the through slot 112 for the wire to pass therethrough.

The insulative housing 1 has a plurality of terminal fixing grooves 14 penetratingly disposed in the front-rear direction. The first portion 1232 and the first expansion portion 1221 are respectively provided with seven terminal fixing slots 14, and the second portion 1233 is provided with fifteen terminal fixing slots 14, the second extension Three of the terminal fixing grooves 14 are provided in the groove 1222. The front end of the terminal fixing groove 14 on the first expanding portion 1221 and the second expanding portion 1222 penetrates the front end surface of the insulating body 1 forward and penetrates the outer surface of the first wall 122 upward. In addition, the base portion 11 of the insulative housing 1 is further provided with a receiving groove 15 for fixing the grounding member 3 and a fixing groove 16 for fixing the bus bar 4. The accommodating groove 15 is disposed directly behind the first portion 1232 and disposed on the outer side of the terminal fixing groove 14 along the thickness direction of the insulating body 1 and spaced apart from the terminal fixing grooves 14. In the present embodiment, the partial terminal fixing groove 14 and the accommodating groove 15 are vertically connected in the thickness direction of the insulating body 1 on the rear side of the first portion 1232 by the communication groove 18. Of course, the communication groove 18 can also be disposed only in the up-and-down communication with the partial terminal fixing groove 14 without passing through the accommodating groove 15, and the same can be achieved for the purpose of the invention. The fixing groove 16 is disposed between the second portion 1233 and the first wall 122 along the thickness direction of the insulative housing 1.

A longitudinally extending boss 17 is disposed in the middle of the receiving portion 110. The boss 17 is provided with a plurality of positioning slots 171 corresponding to the terminal fixing slots 14 in one-to-one correspondence. In the embodiment, the positioning slots 171 are arranged in a row along the longitudinal direction, and the terminal fixing slots 14 and the terminal fixing slots 14 on the second wall 123 are located on the first wall 122 along the thickness direction of the insulating body 1. between. The positioning groove 171 is disposed perpendicular to the terminal fixing groove 14. A plurality of the positioning grooves 171 are disposed near the inner side of the abutting portion 12 with support surfaces 172 for supporting the conductive terminals 2, and the supporting surfaces 172 are located on the same plane. The fixing groove 16 is disposed between the boss 17 and the first wall 122 along the thickness direction of the insulating body 1 and is disposed above and below the partial positioning groove 171.

Referring to the first to fifth figures, the conductive terminal 2 includes a plurality of pairs of differential signal terminals, a plurality of ground terminals, and a plurality of power terminals. The conductive terminals 2 are generally divided into four groups, which include a first terminal group 20 and a second terminal group 21 respectively fixed to the first portion 1232, the second portion 1233, the first expanding portion 1221 and the second expanding portion 1222. The third terminal group 22 and the fourth terminal group 23.

Each of the conductive terminals 2 has a fixing portion 24 fixed in the terminal fixing groove 14 of the base portion 11, and a solder portion extending from one end of the fixing portion 24 to the contact portion 25 of the abutting portion 12 and the other end of the fixing portion 24 to the rear side of the base portion 11 Feet 26. The contact portion 25 protrudes into the mating slot 121 to be electrically connected to the mating connector. The solder fillet 26 is located in the accommodating portion 110 on the rear side of the base portion 11; specifically, the solder fillet 26 is bent upward or downward from the rear end of the fixing portion 24 and is respectively received in the positioning groove 171, and simultaneously The front surface is abutted against the support surface 172 on the inner side of the positioning groove 171, thereby allowing the solder fillet 26 to be positioned by the positioning groove 171, and the positioned solder fillet 26 is located on the same plane, thereby effectively controlling the conductive terminals in different groups. The coplanarity of the solder fillet 26 of 2 to facilitate the soldering of the rear side conductor or circuit board (not shown) to improve the soldering effect.

The differential signal terminals are distributed in the first terminal group 20 and the third terminal group 22. The first terminal group 20 and the third terminal group 22 respectively include seven conductive terminals 2, and are respectively fixed to the first fixing portion 1 of the insulative housing 1 and the terminal fixing groove 14 of the first extending portion 1221. . The seven conductive terminals 2 of the first terminal group 20 conform to the definition of the signal terminals S1-S7 in the SATA connector specification, and include three ground terminals and two pairs of differential signal terminals spaced between adjacent ground terminals; The seven conductive terminals 2 of the third terminal group 22 conform to the definition of the signal terminals S8-S14 in the SATA connector specification, and also include three ground terminals and two pairs of differential intervals between adjacent ground terminals. Signal terminal. The second terminal group 21 includes fifteen conductive terminals 2 respectively corresponding to the terminal fixing slots 14 fixed on the second portion 1233 of the insulative housing 1, and the conductive terminals 2 in the second terminal group 21 conform to the SATA. The definition of terminals P1-P15 in the connector specification includes six power terminals of P7, P8, P9 and P13, P14 and P15. The fourth terminal group 23 includes three conductive terminals 2 respectively corresponding to the terminal fixing grooves 14 fixed to the second expanding portion 1222. The three conductive terminals 2 conform to the definition of the terminals E7-E9 in the SATA connector specification.

In addition, the arrangement of the conductive terminals 2 in the insulative housing 1 is the same as the arrangement direction in the SATA connector specification, that is, the conductive terminals 2 in the first terminal group 20 and the second terminal group 21 are arranged in a row. On the lower side of the docking groove 121, the conductive terminals 2 of the third terminal group 22 and the fourth terminal group 23 are arranged in a row on the upper side of the mating groove 121.

Referring to FIG. 3 to FIG. 5 , at least part of the solder fillet 26 of the solder tail 26 of the power terminal of the second terminal group 21 is further limited and connected by the bus bar 4 . Specifically, in the embodiment, the solder legs 26 corresponding to the three power terminals of P7, P8, and P9 in the SATA connector specification are further limited and connected in parallel by a bus bar 4, corresponding to the SATA connector specification. The soldering legs 26 of the three power terminals of the P13, P14, and P15 are further limited and connected in parallel by the other busbar 4, thereby increasing the current transmission effect of the present electrical connector 100 on the one hand, and reducing the power supply on the other hand. Wire settings.

The bus bar 4 is fixed in the fixing slot 16 and is disposed near the end of the solder tail 26 of the power terminal. The rear end of each of the bus bars 4 is formed with a notch 41 spaced apart to receive the end of the solder tail 26 of the power terminal. The notch 41 communicates with the positioning groove 171 in the thickness direction of the insulative housing 1 , and the inner wall surface of the notch 41 adjacent to the abutting portion 12 is on the same plane as the supporting surface 172 of the positioning groove 171 , thereby positioning The solder fillet 26 in the notch 41 of the bus bar 4 is on the same plane as the solder fillet 26 of the other contact support surface 172.

Referring to the second to fifth figures, the grounding member 3 has a main body portion 31 fixed in the receiving groove 15 of the base portion 11 and a plurality of connecting legs extending from the main body portion 31. As can be seen from the foregoing, in the embodiment, the differential signal terminals are arranged in rows in the first terminal group 20 and the third terminal group 22, respectively. The main body portion 31 of the grounding member 3 has a sheet-like design extending along the longitudinal direction of the insulative housing 1 , and the length of the main body portion 31 along the longitudinal direction of the insulative housing 1 is not less than the total length of the differential signal terminals. Therefore, the grounding element 3 can eliminate the interference signal around the differential signal terminal by the main body portion 31 in time to ensure stable transmission of the high frequency signal.

The connecting leg is disposed in one-to-one correspondence with the soldering legs 26 of the ground terminals of the first terminal group 20 and the third terminal group 22. Specifically, the connecting leg includes a plurality of first connecting legs 32 abutting the soldering legs 26 of the grounding terminals of the first terminal group 20, and a plurality of second connecting portions abutting the soldering legs of the grounding terminals of the third terminal group 22 Feet 33. The second connecting leg 33 extends toward the soldering leg 26 of the grounding terminal of the third terminal group 22 and abuts against the free ends of the two. The second connecting leg 33 and the soldering leg 26 of the grounding terminal of the third terminal group 22 are also located on the same plane to facilitate soldering.

The first connecting leg 32 is provided with a soldering portion 321 which is located on the same plane as the soldering leg 26 of the grounding terminal of the first terminal group 20, and a spring arm 322 which extends forward from the soldering portion 321 into the communication slot 18. The soldering portion 321 extends in the same direction as the solder tail 26 of the ground terminal in the first terminal group 20. The elastic arm 322 is formed with an abutting portion 3221 protruding toward the fixing portion 24 of the ground terminal of the first terminal group 20, and the abutting portion 3221 is opposite to the fixing portion 24 of the ground terminal of the first terminal group 20 Pick up.

In the above embodiment of the present invention, the main body portion 31 of the grounding member 3 is disposed directly behind the first portion 1232, and the first connecting leg 32 abutting the grounding terminal of the first terminal group 20 is disposed to have the structure of the elastic arm 322; It is a matter of course that, as another embodiment of the present invention, the main body portion 31 of the grounding member 3 may be disposed behind the first wall 122. In this case, the third terminal group 22 and the first terminal group 20 may be grounded. The connecting pin of the terminal abuts the transposition design. In short, the welding part of the connecting leg and the soldering leg 26 of the grounding terminal are located on the same plane, and the object of the present invention can be achieved.

In the above, the positioning groove 171 corresponding to the terminal fixing groove 14 is further disposed on the rear side of the base portion 11 of the insulative housing 1 so that the soldering legs 26 of the conductive terminal 2 are respectively received in the positioning groove 171. The soldering legs 26 of the conductive terminals 2 are positioned to prevent the soldering legs 26 from moving and short-circuited with each other; and the supporting surface 172 for supporting the soldering legs 26 in the positioning groove 171 is disposed on the same plane, thereby making it possible to After the positioning, the soldering legs 26 are located on the same plane, thereby effectively controlling the coplanarity of the conductive terminals 2 in different groups and improving the welding effect. Moreover, by the arrangement of the grounding component 3, on the one hand, the external interference can be effectively shielded, and the signal transmission stability can be improved. On the other hand, the setting of the connecting wire behind the grounding terminal can be reduced by the setting of the connecting leg, and on the other hand, the grounding component 3 The structural arrangement of the first connecting leg 32 not only ensures the coplanarity of the soldering portion 321 and the solder fillet 26, but also the contact of the elastic arm 322 ensures the contact effect with the grounding terminal.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

1‧‧‧Insulating body

11‧‧‧ base

110‧‧‧ Housing Department

111‧‧‧Locking slot

12‧‧‧Docking Department

171‧‧‧ positioning slot

172‧‧‧Support surface

2‧‧‧Electrical terminals

26‧‧‧ solder feet

3‧‧‧ Grounding components

4‧‧‧Confluence

5‧‧‧Back cover

Claims (10)

An electrical connector comprising:
The insulative housing has a base portion and an abutting portion extending forward from the base portion, the base portion is provided with a plurality of terminal fixing grooves extending forward and backward, the abutting portion has a longitudinally extending butting groove and a first oppositely disposed on opposite sides of the mating groove a wall and a second wall, the second wall having a groove in communication with the docking groove and a first portion and a second portion formed by the groove spacing, the first wall having a first extension disposed opposite the groove;
The conductive terminal includes a plurality of first terminal groups, a second terminal group and a third terminal group respectively disposed on the first portion, the second portion and the first expansion portion, each of the conductive terminals having a fixing portion fixed in the terminal fixing groove. a soldering leg extending from one end of the fixing portion to the contact portion of the abutting portion and extending from the other end of the fixing portion to the rear side of the base portion;
The rear side of the base is further provided with a plurality of positioning slots corresponding to the terminal fixing slots, the positioning slots are disposed perpendicular to the terminal fixing slots, and the soldering legs are respectively received in the positioning slots, the plurality The positioning groove is disposed near the inner side of the abutting portion with a supporting surface for supporting the solder fillet, and the supporting surface is located on the same plane. The electrical connector of claim 1, wherein the conductive terminal has a plurality of pairs of differential signal terminals and a ground terminal disposed between the adjacent two pairs of differential signal terminals, the differential signal terminal and the ground terminal Distributed in the first terminal group and the third terminal group, the electrical connector further includes a grounding member having a body portion fixed to the base portion and a plurality of first connecting legs extending from the body portion, the A connecting leg abuts at least part of the grounding terminal. The electrical connector of claim 2, wherein the base portion is further provided with a communication slot communicating with a part of the terminal fixing groove in a thickness direction of the insulating body, the communication slot being disposed corresponding to the at least part of the grounding terminal, The main body portion is spaced apart from the fixing portion of the plurality of conductive terminals along the thickness direction of the insulating body, and the first connecting leg is provided with a soldering portion on the same plane as the soldering legs of the at least part of the grounding terminal and extends forward from the soldering portion The elastic arm that enters the communication slot is formed with an abutting portion that protrudes toward the fixing portion of the at least part of the grounding terminal, and the abutting portion abuts against the fixing portion of the at least part of the grounding terminal. The electrical connector of claim 3, wherein the body portion of the grounding member is fixedly disposed behind the first portion and located outside the terminal fixing slot, and the at least part of the grounding terminal is a grounding terminal in the first terminal group. The soldering leg of the grounding terminal in the first terminal group extends in the same direction as the soldering portion of the first connecting leg on the grounding component. The electrical connector of claim 2, wherein the grounding element is further provided with a plurality of second connecting legs extending from the main body, and the soldering legs of the grounding terminals of the second connecting leg and the third terminal group Oppose to each other and resist each other at the free end. The electrical connector of claim 5, wherein the second connecting leg and the soldering leg of the grounding terminal of the third terminal group are on the same plane. The electrical connector of claim 1, wherein the second terminal set comprises a plurality of power terminals, the electrical connector further comprising a base fixed to the base and abutting with at least a portion of the soldering pins of the power terminals Confluence film. The electrical connector of claim 7, wherein the bus bar is disposed near an end of the solder tail, the base is provided with a fixing groove formed by a recess from the rear side, and the bus bar is received in the fixing slot, and A notch for receiving the solder fillet is formed at the rear end, and the notch of the bus bar is in communication with the positioning groove along a thickness direction of the insulating body. The electrical connector of claim 7, wherein the inner wall surface of the notch adjacent to the abutting portion is in the same plane as the supporting surface. The electrical connector of claim 1, wherein the first wall further comprises a second extension disposed opposite the first portion, the conductive terminal further comprising a fourth terminal fixed to the second extension The fourth terminal group includes a pair of differential signal terminals and a detecting terminal, and the soldering legs of the conductive terminals of the fourth terminal group are spaced apart from the soldering legs of the conductive terminals of the first terminal group.