TWI452771B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector with a waterproof function.

A conventional technique relating to the present invention can be found in U.S. Patent No. 7,874,876, issued Jan. 25, 2011, which is incorporated herein incorporated by reference. The insulating body is provided with a cylindrical receiving space and a plurality of terminal receiving grooves communicating with the receiving space. The conductive terminal is mounted on the insulative housing from a mounting surface of the insulative housing. When the conductive terminals are installed, the terminal receiving slots are not completely filled. Therefore, if there is water around the voice socket connector during use, water can penetrate into the accommodating space through the unfilled terminal receiving groove, which seriously affects the service life of the voice socket connector.

Of course, in order to achieve the waterproof function of the connector, in the prior art, a waterproof film is often applied to the mounting surface of the insulating body after the assembly of the conductive terminals is completed. However, this complicates the structure of the connector and requires an additional step of adding a film.

Therefore, it is indeed necessary to provide a new electrical connector to overcome the above drawbacks.

It is an object of the present invention to provide an electrical connector, and more particularly to an electrical connector that is structurally simple and has a waterproof function.

In order to achieve the above object, the electrical connector of the present invention includes an insulative housing and a first terminal module mounted on the insulative housing. The insulative housing is provided with a receiving space for receiving the mating connector and mounting on a side of the receiving space. a first receiving slot that communicates with the receiving space and penetrates the mounting wall, the first terminal module includes a first conductive terminal extending into the receiving space and a first positioning block that fixes the first conductive terminal The first positioning block seals the first receiving groove.

Further, the first positioning block is overmolded on the first conductive terminal.

Further, the first positioning block is provided with a first inner surface and a first positioning groove formed by recessing from the first inner surface; the mounting wall is provided with a first positioning block protruding into the first receiving groove, The first positioning block is received in the first positioning slot.

Further, the first positioning block includes a second positioning groove formed by recessing from the first inner surface and an intermediate protrusion located between the first and second positioning grooves, and the mounting wall is provided to protrude into the first receiving a second positioning block of the slot and an intermediate groove between the first and second positioning blocks, wherein the second positioning block is received in the second positioning slot, and the intermediate protrusion is received in the intermediate groove.

Further, the first positioning block is provided with a stepped first inner wall surface.

Further, the first conductive terminal includes a pair of first curved arms and a first contact arm between the pair of first curved arms, and a first contact arm is disposed between the pair of first curved arms a first opening that is elastically deformed, and the first contact arm is provided with a first contact portion that protrudes into the receiving space.

Further, the first curved arm is opposite to the protruding direction of the first contact arm, and the first curved arm and the first contact arm are both simply supported beams.

Further, the first conductive terminal includes connecting the pair of first curved arms to the first connection And contacting the first fixing portion of the first positioning block, the insulating body is provided with a first slot for holding the first fixing portion.

Further, the first conductive terminal includes a soldering portion extending from the first positioning block, and the soldering portion is attached to the first positioning block.

Further, the electrical connector is a voice socket electrical connector, and the receiving space is cylindrical.

Compared with the prior art, the present invention has the following effects: the first receiving groove is sealed by the first positioning block, so that the waterproof function can be achieved after the first terminal module is assembled, and no additional steps are required to seal the electrical connection. , which simplifies the structure of the electrical connector.

100‧‧‧Electrical connector

1‧‧‧Insulating body

10‧‧‧ accommodating space

11‧‧‧Installation wall

111‧‧‧First storage trough

112‧‧‧Second holding trough

113‧‧‧3rd storage trough

114‧‧‧4th storage trough

115‧‧‧5th receiving trough

116‧‧‧First positioning block

117‧‧‧Second positioning block

118‧‧‧Intermediate groove

119‧‧‧First slotting

12‧‧‧ bottom wall

121‧‧‧Depression

13‧‧‧ side wall

14‧‧‧ Back wall

2‧‧‧Terminal module

21‧‧‧First Terminal Module

22‧‧‧Second terminal module

23‧‧‧ Third terminal module

24‧‧‧fourth terminal module

25‧‧‧ fifth terminal module

3‧‧‧First conductive terminal

31‧‧‧First curved arm

311‧‧‧ first opening

32‧‧‧First contact arm

321‧‧‧First contact

33‧‧‧First Fixed Department

34‧‧‧Second fixed department

35‧‧‧Weld Department

4‧‧‧First positioning block

41‧‧‧First inner surface

411‧‧‧First positioning slot

412‧‧‧Second positioning slot

413‧‧‧Intermediate bumps

42‧‧‧First outer surface

421‧‧‧ slot

5‧‧‧4th conductive terminal

51‧‧‧ Fixed Department

52‧‧‧Weld Department

53‧‧‧First Extension

531‧‧‧ barbed

54‧‧‧Second extension

541‧‧‧ barbed

55‧‧‧Connecting Department

551‧‧‧Resistance Department

6‧‧‧four positioning block

61‧‧‧Four inner surface

62‧‧‧Four outer surface

621‧‧‧ slot

63‧‧‧ protruding parts

631‧‧‧ cantilever

The first figure is a three-dimensional combination diagram of the original electrical connector; the second figure is a three-dimensional combination diagram of the other angle of the first figure; the third figure is an exploded view of the original electrical connector; the fourth figure is the third figure A perspective view of the first terminal module at another angle; a fifth view is an exploded perspective view of the first terminal module; and a sixth view is a side view of the first terminal module shown in FIG. 5; 3 is a perspective view of the fourth terminal module in the third figure at another angle; the eighth figure is a perspective view of the fourth terminal module in the seventh figure at a further angle; the ninth figure is the fourth in the seventh figure An exploded perspective view of the terminal module; the tenth figure is a sectional view of the present electrical connector along the line XX in the second figure; Figure 11 is a cross-sectional view of the present electrical connector along the line XI-XI in the second figure; the twelfth is a cross-sectional view of the present electrical connector along the line XII-XII in the second figure.

Referring to the first to third figures, the present invention discloses an electrical connector 100 including an insulative housing 1 and a plurality of terminal modules 2 mounted in the insulative housing 1. In the illustrated embodiment, the electrical connector 100 is a voice jack electrical connector. Of course, in other embodiments, the electrical connector 100 can also be other types of electrical connectors.

Referring to the second and third figures, the insulative housing 1 includes a mounting wall 11 , a bottom wall 12 opposite the mounting wall 11 , two side walls 13 connecting the mounting wall 11 and the bottom wall 12 , and a rear end Wall 14. The insulative housing 1 is further provided with a receiving space 10 for escaping forwardly for receiving the mating connector (in the illustrated embodiment, the receiving space 10 is cylindrical). The mounting wall 11 is located on one side of the accommodating space 10 (in the illustrated embodiment, the mounting wall 11 is located on the upper side of the accommodating space 10). The mounting wall 11 is provided with a first receiving slot 111 , a second receiving slot 112 , a third receiving slot 113 , a fourth receiving slot 114 , and a fifth receiving slot 115 that communicate with the receiving space 10 and penetrate the mounting wall 11 . The first receiving slot 111 is adjacent to one of the side walls 13 , and the second and third receiving slots 112 , 113 are adjacent to the other side wall 13 . The fourth receiving groove 114 and the fifth receiving groove 115 are adjacent to the rear wall 14 and are symmetrically disposed on the left and right sides.

Correspondingly, the terminal module 2 includes a first terminal module 21 received in the first receiving slot 111, a second terminal module 22 received in the second receiving slot 112, and received in the third receiving slot 113. The third terminal module 23 and the fourth terminal module 24 housed in the fourth receiving slot 114 and the fifth terminal module 25 received in the fifth receiving slot 115. Since the structures of the first, second, and third receiving slots 111, 112, and 113 are similar, the following Only the first receiving slot 111 will be described in detail. In addition, the structures of the first, second, and third terminal modules 21, 22, and 23 are also similar. Accordingly, only the first terminal module 21 will be described in detail below.

As shown in FIG. 3 , the mounting wall 11 is provided with a first positioning block 116 and a second positioning block 117 protruding upward into the first receiving slot 111 . The first positioning block 116 is spaced apart from the second positioning block 117. An intermediate groove 118 is disposed between the first positioning block 116 and the second positioning block 117. In addition, the mounting wall 11 is further provided with a first slot 119 at the bottom of the first receiving slot 111.

As shown in FIG. 4 to FIG. 6 , the first terminal module 21 includes a first conductive terminal 3 extending into the receiving space 10 and a first positioning block 4 fixed to the first conductive terminal 3 . In the illustrated embodiment, the first positioning block 4 is substantially rectangular, and the first conductive terminal 3 is insert molded on the first positioning block 4. The first positioning block 4 includes a first inner surface 41 , a first outer surface 42 opposite to the first inner surface 41 , and a first positioning groove 411 and a second positioning groove 412 formed by recessing from the first inner surface 41 . As shown in FIG. 10 , the first positioning slot 411 is configured to receive the first positioning block 116 . The second positioning slot 412 is configured to receive the second positioning block 117. The first positioning slot 411 is spaced apart from the second positioning slot 412, and an intermediate protrusion 413 is formed between the first positioning slot 411 and the second positioning slot 412. The intermediate protrusion 413 is received in the middle recess 118. . In addition, the first positioning block 4 is further provided with a slot 421 recessed from the first outer surface 42. When the first terminal block 21 is inserted into the first receiving slot 111 from the top to the bottom, the first positioning block 4 seals the first receiving slot 111, thereby achieving waterproof effect. Referring to FIG. 10, the first positioning block 4 is provided with a stepped first inner wall surface (not labeled) due to the presence of the first and second positioning grooves 411, 412. The stepped first inner wall surface can extend the siphon path to improve waterproof performance.

The first conductive terminal 3 includes a pair of first curved arms 31 and a first contact arm 32 between the pair of first curved arms 31. A first opening 311 for elastically deforming the first contact arm 32 is disposed between the pair of first curved arms 31. The first contact arm 32 is provided with a first contact portion 321 protruding into the receiving space 10 . In the illustrated embodiment, the first contact portion 321 is a hemispherical convex hull and is formed at an intermediate position of the first contact arm 32. The protruding directions of the first curved arm 31 and the first contact arm 32 are opposite. By means of the arrangement, when the double-arc terminal is subjected to a force, a plurality of arm arms can be used to disperse the stress, thereby increasing the life of the terminal. The first curved arm 31 and the first contact arm 32 are both simply supported beams, that is, both ends of the first curved arm 31 and the first contact arm 32 are fixed. Specifically, the first conductive terminal 3 includes The first fixed portion 33 and the second fixed portion 34 of the pair of first curved arms 31 and the first contact arms 32 are respectively connected from both ends. The first fixing portion 33 is away from the first positioning block 4 and is received in the first slot 119 of the insulative housing 1 (as shown in FIG. 12). In the illustrated embodiment, the first conductive terminal 3 has a small structure and a high material utilization rate, and the first conductive terminal 3 has a wider portion to facilitate an overmolding process, and the first positioning block The 4 series is coated on the second fixing portion 34. In addition, the first conductive terminal 3 also includes a soldering portion 35 extending from the first positioning block 4, and the soldering portion 35 is attached to the first positioning block 4 to ensure that the soldering portion 35 can be smoothly surface soldered. (SMT) soldered to the board. The weld portion 35 is also confined in the slit 421 to prevent the weld portion 35 from shaking.

The second and third terminal modules 22 and 23 are similar in structure to the first terminal module 21, and can be rotated by 180 degrees along the horizontal plane by the first terminal module 21.

The structures of the fourth and fifth receiving slots 114 and 115 are similar. Only the fourth receiving slot 114 will be described in detail below. In addition, the structures of the fourth and fifth terminal modules 24 and 25 are also similar and symmetrically arranged. Accordingly, only the fourth terminal module 24 is only described in detail below. description.

As shown in FIG. 3 , the fourth receiving groove 114 is provided with two recessed portions 121 , and the inner wall surface of the fourth receiving groove 114 is a meandering surface. The meandering surface is formed at a gap when the fourth terminal module 24 and the fourth receiving groove 114 are engaged with each other. The design of this tortuous surface lengthens the siphon path, which greatly reduces the risk of siphoning and improves the waterproof performance.

Referring to FIG. 7 to FIG. 9 , the fourth terminal module 24 includes a fourth conductive terminal 5 extending into the receiving space 10 and a fourth positioning block 6 fixed to the fourth conductive terminal 5 . In the illustrated embodiment, the fourth positioning block 6 is substantially rectangular, and the fourth conductive terminal 5 is insert molded on the fourth positioning block 6. The fourth positioning block 6 includes a fourth inner surface 61, a fourth outer surface 62 opposite to the fourth inner surface 61, and a pair of protrusions 63 protruding from the fourth inner surface 61. The protruding portion 63 is received in the recessed portion 121 of the fourth receiving groove 114 (refer to FIG. 11). Each of the projections 63 includes a pair of spaced apart cantilevers 631 for increasing the reliability of the engagement of the projections 63 with the recesses 121. In addition, the fourth positioning block 6 is further provided with a slot 621 recessed from the fourth outer surface 62. When the fourth terminal module 24 is inserted into the fourth receiving slot 114 from the top to the bottom, the fourth positioning block 6 seals the fourth receiving slot 114, thereby achieving waterproof function.

The fourth conductive terminal 5 includes a fixing portion 51 , a soldering portion 52 bent perpendicularly from a top end of the fixing portion 51 , a first extending portion 53 and a second extending portion 54 extending downward from a bottom end of the fixing portion 51 , and A connecting portion 55 spanning the first and second extending portions 53, 54. The connecting portion 55 is also a simple beam, and the two ends are fixed. The connecting portion 55 is provided with a pressing portion 551 that protrudes into the receiving space 10 . The pressing portion 551 is used for pressing against the docking connector to increase the insertion force. The ends of the first and second extensions 53, 54 are provided inward The protruding plurality of barbs 531, 541 are used to pierce the corresponding recesses of the insulative housing 1 so that the first and second extensions 53, 54 can be stably held in the recesses.

Compared with the prior art, the present electrical connector 100 seals the corresponding first receiving slot 111 and fourth receiving slot 114 by using the first positioning block 4 and the fourth positioning block 6 of the terminal module 2, thereby waterproofing The utility model has the advantages of simple structure, no need to additionally set the sealing sleeve, and can be realized simultaneously when the terminal is assembled.

The above description is only for the several embodiments of the present invention, and not all of the embodiments, any equivalent changes taken by those skilled in the art by reading the specification of the present invention are the patents of the present invention. Covered by the scope.

100‧‧‧Electrical connector

1‧‧‧Insulating body

21‧‧‧First Terminal Module

22‧‧‧Second terminal module

23‧‧‧ Third terminal module

24‧‧‧fourth terminal module

25‧‧‧ fifth terminal module

Claims (9)

An electrical connector includes an insulative housing and a first terminal module mounted on the insulative housing, the insulative housing is provided with a receiving space for receiving the mating connector and a mounting wall on a side of the receiving space, the mounting wall a first receiving slot that is connected to the receiving space and extends through the mounting wall, wherein the first terminal module includes a first conductive terminal extending into the receiving space and a first positioning block for fixing the first conductive terminal. The first positioning block is overmolded on the first conductive terminal, the first positioning block seals the first receiving slot, the first conductive terminal includes a pair of first curved arms and the pair of first curved arms A first contact arm between the first contact arms is elastically deformable between the first curved arms. The electrical connector of claim 1, wherein the first positioning block is provided with a first inner surface and a first positioning groove recessed from the first inner surface; the mounting wall is provided with a protruding end The first positioning block of the first receiving slot is received in the first positioning slot. The electrical connector of claim 2, wherein the first positioning block comprises a second positioning groove formed by recessing from the first inner surface and an intermediate protrusion between the first and second positioning grooves, The mounting wall is provided with a second positioning block protruding into the first receiving slot and an intermediate groove between the first and second positioning blocks, and the second positioning block is received in the second positioning slot, The middle bump is received in the intermediate groove. The electrical connector of claim 2, wherein the first positioning block is provided with a stepped first inner wall surface. The electrical connector of claim 1, wherein the first curved arm is provided with a first opening for elastically deforming the first contact arm, and the first contact arm is provided with a protruding and receiving device. The first contact in the space. The electrical connector of claim 1, wherein the first curved arm is in contact with the first The protruding directions of the arms are opposite, and the first curved arms and the first contact arms are simply supported beams. The electrical connector of claim 6, wherein the first conductive terminal comprises a first fixing portion connecting the pair of first curved arms and the first contact arm and away from the first positioning block, the insulation The body is provided with a first slot for holding the first fixing portion. The electrical connector of claim 6, wherein the first conductive terminal comprises a soldering portion extending from the first positioning block, the soldering portion being attached to the first positioning block. The electrical connector of any one of clauses 1 to 8, wherein the electrical connector is a voice jack electrical connector, and the receiving space is cylindrical.