TWI593178B - Socket connector - Google Patents

Description

Socket connector

The present invention relates to a socket connector, and more particularly to a socket connector mounted on a circuit board.

With the rapid development of electronic technology, electrical connectors are widely used in electronic products to exchange information and materials with external devices. The existing electrical connector generally includes an insulative housing and a plurality of terminals received in the insulative housing. The receiving body is provided with a receiving groove for receiving the terminal, and the terminal is provided with a barb structure, so that the terminal can be stably inserted into the receiving groove by the interference between the barb structure and the receiving groove.

However, the terminal barb structure of the existing electrical connector is generally planar, so that although the assembly is convenient, the interference effect of the planar barb structure and the receiving groove is not obvious, and the terminal cannot be effectively fixed, thereby soldering the electrical connector to When the circuit board and the electrical connector are docked with the mating connector, the terminal is easily deflected in the receiving groove to cause deflection, which not only causes welding difficulties, but also affects the docking effect.

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

The object of the present invention is to provide a socket connector. The terminal spur structure of the socket connector is not only easy to assemble, but also can effectively fix the terminal and prevent the terminal from rotating in the plastic groove, and the terminal retaining force is strong.

To achieve the above object, the present invention provides a socket connector that is mounted on a circuit board for mating with a plug connector, and includes: a plastic body having a mating surface that is mated with the plug connector and the mating surface And a plurality of partition walls connecting the abutting surface and the top surface, the bottom wall, the two side walls and the plurality of side walls parallel to the side wall, wherein the plurality of receiving grooves penetrate from the abutting surface to the mounting surface, and are formed on the side wall And the terminal between the partition wall and the adjacent two partition walls; and the terminal is correspondingly received in the receiving groove, the terminal includes a contact portion electrically connected to the plug connector, and a terminal tail portion electrically connected to the circuit board and a connecting portion connecting the contact portion and the terminal tail portion, wherein the terminal tail portion extends from a side of the connecting portion toward the contact portion, and the contact portion and the terminal tail portion are arranged up and down, and the terminal tail portion includes a flat plate shape a soldering pad; wherein the connecting portion is U-shaped, and at least one side of the connecting portion protrudes from at least one spur; The spurs are provided with a barb structure on the lower side of the height direction of the terminal, and the receiving groove includes a card slot formed by recessing from the inner wall of the receiving groove toward the side wall and/or the partition wall to receive the spur; When the spur is received in the card slot, the barb structure interferes with the upper wall of the card slot to effectively fix the terminal and prevent the terminal from rotating in the receiving groove; the outer wall of the bottom wall is recessed to form a groove, and the concave portion The groove is provided corresponding to the receiving groove, and the pad is received in the groove when the terminal is received in the receiving groove.

As a further improvement of the present invention, the opposite side walls of the connecting portion are disposed The spurs are disposed on the upper side of the plastic body, and the inner walls of the two sides of each of the receiving slots have a card slot for receiving the spurs.

As a further improvement of the present invention, the top ends of the two side walls respectively protrude from the height direction of the terminal to form a barb, and the receiving groove further includes a groove for receiving the barb, the channel is oriented from the inner wall of the receiving groove The top wall of the plastic body is recessed.

As a further improvement of the present invention, the aforementioned burrs are formed at intermediate positions of the two side walls such that the aforementioned barbs on each of the side walls are arranged up and down with the aforementioned spurs.

According to a further improvement of the present invention, the spur is provided with an inclined guiding surface at one end of the contact portion, and the guiding surface extends obliquely in the terminal insertion direction.

As a further improvement of the present invention, the contact portion includes a pair of contact arms protruding outwardly from the connecting portion and symmetrically disposed, and the front end of the receiving groove is provided with a stopper for resisting the contact arm.

As a further improvement of the present invention, the receiving groove is provided with a protrusion, and the connecting portion is disposed outside the protruding block to hold the opposite side walls of the connecting portion on the inner wall of the protruding block and the receiving groove. between.

Compared with the prior art, the socket connector of the present invention has a U-shaped terminal connection portion, and at least one spur is protruded from at least one side wall of the connecting portion, thereby interfering with the plastic body by the spur The function can effectively fix the terminal and prevent the terminal from rotating in the plastic groove, and the terminal retaining force is strong.

1, 2‧‧‧ socket connector

10, 10'‧‧‧ plastic body

101‧‧‧ docking

102, 102’‧‧‧ mounting surface

103‧‧‧ top wall

104‧‧‧ bottom wall

105‧‧‧ side wall

11‧‧‧ partition wall

12‧‧‧ housing trough

13‧‧‧ card slot

14‧‧‧ channel

15‧‧ ‧stop

16‧‧‧Bumps

17‧‧‧Limited slot

18‧‧‧ Groove

20, 20'‧‧‧ terminals

21, 21’ ‧ ‧ contact

211‧‧‧Contact arm

22, 22’‧‧‧ Connections

23, 23'‧‧‧ terminal tail

231, 231'‧‧‧ solder pads

24‧‧‧Spur

241‧‧‧ Guide surface

242‧‧‧ barbed structure

25‧‧‧ barbed

The first figure is a perspective view of the socket connector of the present invention.

The second figure is an exploded view of the socket connector shown in the first figure.

The third figure is a perspective view of the plastic body shown in the second figure.

The fourth figure is another perspective view of the plastic body shown in the third figure.

The fifth figure is a perspective view of the terminal shown in the second figure.

Figure 6 is a perspective view of another embodiment of the receptacle connector of the present invention.

The seventh figure is a perspective view of the terminal shown in the sixth figure.

Referring to the first and second figures, the receptacle connector 1 of the present invention can be mounted on a circuit board (not shown) for mating engagement with a corresponding plug connector (not shown). The socket connector 1 includes a plastic body 10 and a terminal 20 received in the plastic body 10.

Referring to the third and fourth figures, in conjunction with the first and second figures, the plastic body 10 is formed with an abutting surface 101 that is butted against the plug connector, and a mounting surface 102 that is disposed opposite the mating surface 101. And connecting the abutting surface 101 and the top wall 103, the bottom wall 104 and the two side walls 105 of the mounting surface 102. A plurality of partition walls 11 parallel to the side wall 105 are disposed between the top wall 103 and the bottom wall 104. The plurality of receiving grooves 12 penetrate from the abutting surface 101 to the mounting surface 102, and are formed on the side wall 105 and the partition wall 11. Between and between two adjacent partition walls 11.

The receiving slot 12 is simultaneously opened on the abutting surface 101 and the top wall 103, so that the heat generated by the terminal 20 in the receiving slot 12 can be dissipated as soon as possible through the receiving slot 12, and the corresponding plug connector can be along the terminal. 20 plugged in the opposite direction (ie, the first direction shown in the figure), perpendicular to the direction of the top wall 103 (ie, the second direction shown in the figure), and the third direction shown in the figure, to achieve multi-directional docking .

The receiving groove 12 includes from the inner wall of the receiving groove 12 toward the side wall 105 and Or a groove 13 formed by recessing the partition wall 11 and a groove 14 formed by recessing from the inner wall of the receiving groove 12 toward the top wall 103. The card slot 13 and the channel 14 are also simultaneously from the mounting surface 102. It is formed to be recessed toward the abutting surface 101. The front end of the receiving groove 12 is provided with a stopper 15 , and the stopper 15 is distributed on a side of the side wall 105 adjacent to the receiving groove 12 and on both sides of the partition wall 11 .

A protrusion 16 is disposed in the receiving groove 12 near the mounting surface 102, and a limit groove 17 is left between the two sides of the protrusion 16 and the inner wall of the receiving groove 12. In the embodiment, the protrusion 16 is The aforementioned bottom wall 104 is integrally provided. A groove 18 is formed in the outer side of the bottom wall 104. The groove 18 communicates with the limiting groove 17 , and the groove 18 is disposed corresponding to the receiving groove 12 .

Referring to the fifth embodiment and the third and fourth figures, the terminal 20 is correspondingly received in the receiving groove 12. The terminal 20 includes a contact portion 21 electrically connected to the plug connector, a terminal tail portion 23 electrically connected to the circuit board, and a connecting portion 22 connecting the contact portion 21 and the terminal tail portion 23. The contact portion 21 includes a pair of contact arms 211 protruding from the connecting portion 22 and symmetrically disposed. The stopper 15 is configured to abut the end of the contact arm 211 to prevent the contact arm 211 from being inserted beyond the receiving slot. 12 front end.

The connecting portion 22 is U-shaped, and the opposite side walls of the connecting portion 22 are provided with spurs 24, and the spurs 24 extend away from the longitudinal direction of the plastic body 10 from the two side walls. One end of the spur 24 adjacent to the contact portion 21 is provided with an inclined guiding surface 241, and the guiding surface 241 extends obliquely along the insertion direction of the terminal 20. The spurs 24 are provided with a barb structure 242 on the lower side of the terminal height direction. The spurs 24 are received in the card slot 13 , and the barb structure 242 is interference-fitted with the upper wall of the card slot 13 to effectively fix the terminal 20 . And prevent the terminal 20 from receiving the above The tank 12 is rotated inside. The top ends of the two side walls are respectively formed with barbs 25 protruding in the height direction of the terminal 20, and the barbs 25 are received in the grooves 14. The aforementioned spurs 24 are formed at intermediate positions of the two side walls such that the aforementioned barbs 25 on each of the side walls are arranged up and down with the aforementioned spurs 24.

The U-shaped connecting portion 22 is disposed outside the protruding block 16 to restrain the opposite sidewalls of the U-shaped connecting portion 22 from being locked in the limiting slot 17 while limiting the assembly direction of the terminal 20 to The mounting surface 102 is assembled toward the mating surface 101. The engagement of the burr 24 with the card slot 13 , the engagement of the barb 25 with the channel 14 , and the engagement of the two side walls of the connecting portion 22 with the limiting slot 17 can limit the terminal 20 in the receiving slot. 12 moves back and forth, up and down, left and right, thereby ensuring that the socket connector 1 of the present invention is stable in docking with the corresponding plug connector.

The terminal tail portion 23 extends from one side of the connecting portion 22 toward the contact portion 21, and the contact portion 21 and the terminal tail portion 23 are arranged up and down. The terminal tail portion 23 includes a flat pad 231. The pad 231 is located directly under the contact portion 21, and the pad 231 is received in the recess 18 when the terminal 20 is received in the receiving groove 12.

Please refer to the sixth and seventh figures in combination with the fifth figure. The sixth and seventh figures show another embodiment of the socket connector 1 of the present invention. The socket connector 2 of the present embodiment has substantially the same structure as the socket connector 1 described above, and the difference between the two is that the extension directions of the terminal tail portions 23 and 23' are different, and the difference will be mainly described below. Other structures will not be described again.

In the present embodiment, the terminal tail portion 23' extends from the side of one of the connecting portions 22' away from the contact portion 21', and the terminal tail portion 23' extends substantially horizontally in the opposite direction of the terminal 20'. The terminal tail portion 23' also includes a flat pad 231' which extends beyond the mounting surface 102' in the width direction of the plastic body 10' to facilitate soldering to the circuit board.

Compared with the prior art, the socket connectors 1, 2 of the present invention are provided with U-shaped connecting portions 22, 22' of the terminals 20, 20', and protruded on the two side walls of the U-shaped connecting portions 22, 22'. The spurs 24 are provided, so that the terminals 20, 20' can be effectively fixed by the interference fit between the burrs 24 and the card slots 13, and the terminals 20, 20' are prevented from rotating in the receiving slots 12, and the terminal retaining force is maintained. Stronger.

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‧‧‧Socket connector

10‧‧‧Plastic body

102‧‧‧Installation surface

103‧‧‧ top wall

105‧‧‧ side wall

11‧‧‧ partition wall

12‧‧‧ housing trough

15‧‧ ‧stop

16‧‧‧Bumps

20‧‧‧ terminals

211‧‧‧Contact arm

22‧‧‧Connecting Department

24‧‧‧Spur

Claims (7)

A socket connector is mounted on a circuit board for docking with a plug connector, and includes: a plastic body having a mating surface that is mated with the plug connector, a mounting surface opposite to the mating surface, and the docking connection a top wall, a bottom wall, two side walls and a plurality of partition walls parallel to the side wall, a plurality of receiving grooves penetrating from the abutting surface to the mounting surface, and formed between the side wall and the partition wall and adjacent to each other The terminal is correspondingly received in the receiving groove, and the terminal includes a contact portion electrically connected to the plug connector, a terminal tail portion electrically connected to the circuit board, and a connection between the contact portion and the terminal tail portion. a connecting portion, wherein the terminal tail portion extends from a side of the connecting portion toward the contact portion, and the contact portion and the terminal tail portion are arranged up and down, and the terminal tail portion includes a flat pad; wherein the connecting portion is U-shaped, and at least one spur protrudes from at least one side wall of the connecting portion; the spur is above and below a height direction of the terminal The side of the receiving groove includes a barb that is recessed from the inner wall of the receiving groove toward the side wall and/or the partition wall to receive the spur; the spur is received in the card slot. The barb structure is interference-fitted with the upper wall of the card slot to effectively fix the terminal and prevent the terminal from rotating in the receiving slot; the outer wall of the bottom wall is recessed with a groove, and the groove is disposed corresponding to the receiving slot. When the terminal is received in the receiving groove, the pad is received in the groove. The socket connector of claim 1, wherein the two side walls of the connecting portion are provided with the spurs, and the spurs are opposite to each other along the length of the plastic body. The inner wall on both sides of each of the foregoing receiving slots has a card slot for receiving the aforementioned spurs. The socket connector of claim 2, wherein the top ends of the two side walls respectively protrude from the height direction of the terminal to form a barb, and the receiving groove further includes a channel for receiving the barb, the channel The inner wall of the receiving groove is recessed toward the top wall of the plastic body. The socket connector of claim 3, wherein the spurs are formed at intermediate positions of the two side walls such that the barbs on each of the side walls are arranged up and down with the spurs. The socket connector of claim 1, wherein the spur is provided with an inclined guiding surface at one end of the contact portion, and the guiding surface extends obliquely along the terminal insertion direction. The socket connector of claim 1, wherein the contact portion includes a pair of contact arms protruding outwardly from the connecting portion and symmetrically disposed, and the front end of the receiving groove is provided to abut the contact arm. Stoppers. The socket connector of claim 1, wherein the receiving groove is provided with a protrusion, and the connecting portion is disposed outside the protrusion to clamp the opposite side walls of the connecting portion to the foregoing The bump is between the inner wall of the receiving groove.