CN210296781U

CN210296781U - Audio socket

Info

Publication number: CN210296781U
Application number: CN201921485006.7U
Authority: CN
Inventors: 唐敏; 王红豪; 杨伟
Original assignee: JUST CONNECTOR KUNSHAN CO Ltd
Current assignee: JUST CONNECTOR KUNSHAN CO Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-04-10
Anticipated expiration: 2029-09-06

Abstract

An audio socket comprises an insulating body provided with a plug cavity, a plurality of signal terminals inserted in the insulating body and a switch terminal group inserted in the insulating body, the insulation body is provided with a switch terminal groove which comprises a first groove body, a second groove body and a third groove body which are sequentially arranged and mutually communicated, the third groove body is communicated with the inserting cavity, the switch terminal group comprises a first switch terminal, a second switch terminal and a third switch terminal which are inserted in the first groove body, the second groove body and the third groove body, the third switch terminal comprises a third elastic arm extending into the plugging cavity, the second switch terminal comprises a second elastic arm and a second welding spot part, the second elastic arm extends obliquely from the third elastic arm, the first switch terminal comprises a first welding spot part, and an insulator is arranged at the extrusion position of the third elastic arm and the second elastic arm; the audio socket switch is stable in performance.

Description

Audio socket

Technical Field

The present application relates to the field of connectors, and more particularly, to an audio jack.

Background

The audio jack generally includes an insulating body having a plug cavity, a plurality of signal terminals and ground terminals installed in the insulating body and extending into the plug cavity, and a switch terminal for providing a prompt that an audio plug has been inserted in place. The existing switch terminal generally comprises a static terminal and a movable terminal which are welded on a printed circuit board, the static terminal is fixed, the movable terminal is provided with an elastic arm, and the elastic arm is extruded and deformed to electrically contact the static terminal to realize the switch function after the audio plug is inserted. In order to avoid noise or interference signals, the audio plug and the movable terminal need to be in an insulation abutting mode, an insulator is usually formed at the contact position of the elastic arm and the audio plug, but the insulator is abraded along with the increase of the plugging times, and the performance of the switch is further influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, there is a need for an audio jack that does not suffer from the switch performance due to the switch terminals being worn by the insertion and removal of the audio jack.

In order to solve the above technical problem, the present application provides an audio jack, including an insulating body having a plugging cavity, a plurality of signal terminals inserted into the insulating body, and a switch terminal set inserted into the insulating body, wherein the insulating body is provided with a switch terminal groove, the switch terminal groove includes a first groove body, a second groove body, and a third groove body which are sequentially arranged and are communicated with each other, the third groove body is communicated with the plugging cavity, the switch terminal set includes a first switch terminal, a second switch terminal, and a third switch terminal inserted into the first groove body, the second groove body, and the third groove body, the third switch terminal includes a third elastic arm extending into the plugging cavity, the second switch terminal includes a second elastic arm and a second welding point portion, the second elastic arm is extruded by the third elastic arm and electrically contacts with the first switch terminal, and an insulator is arranged at the extrusion position of the third elastic arm and the second elastic arm.

Preferably, the third elastic arm includes a pressing protrusion extending into the insertion cavity and a pressing end portion formed by bending the pressing protrusion toward the insulator, and an insulator is disposed at a contact position of the pressing end portion and the second elastic arm.

Preferably, the insulator is integrally formed on the pressing end portion, and the insulator on the side of the pressing end portion facing the second elastic arm is in contact with the second elastic arm to achieve insulation.

Preferably, the insulator is integrally formed on the side of the second elastic arm facing the extrusion end, and the insulator on the side of the second elastic arm facing the extrusion end is in contact with the extrusion end to realize insulation.

Preferably, the third switch terminal includes a third frame fixed in the third slot and a latch arm extending from the third frame and latched in the third slot.

Preferably, the second switch terminal further includes a second frame fixed in the second groove, the second elastic arm is formed by tearing the second frame and extending obliquely to the third elastic arm, a free end side of the second elastic arm abuts against the pressing end portion, and the second solder portion is formed by extending from the second frame.

Preferably, the first switch terminal includes a first frame fixed in the first groove, an barb fixed by interference with the first groove is arranged outside the first frame, and the first welding spot is formed by extending the first frame.

Preferably, the first switch terminal further includes a first elastic arm formed by tearing the first frame body and extending obliquely to the second elastic arm, and the first elastic arm is in electrical contact with the second elastic arm.

Preferably, a free end side of the first elastic arm is stamped towards a side of the second elastic arm to form a contact convex hull, and the contact convex hull is electrically contacted with the second elastic arm.

Preferably, the insulating body includes a main body portion provided with the plugging cavity, and a plurality of signal terminal grooves opened on the main body portion for plugging the signal terminals, and each signal terminal includes a holding portion fixed in the signal terminal groove, a contact portion extending from the holding portion to the plugging cavity, and a solder leg extending from the holding portion.

The switch terminal group of the audio socket is characterized in that the switch terminal grooves of the first groove body, the second groove body and the third groove body are sequentially arranged on the insulating body, a first switch terminal, a second switch terminal and a third switch terminal are respectively inserted into the first to the third slots, the third switch terminal comprises a third elastic arm, the free end of the third elastic arm is bent to form an extrusion convex part extending to the plug cavity, the second switch terminal is provided with a second elastic arm, after the audio plug is inserted, the extrusion convex part is extruded to extrude the second elastic arm outwards and the second elastic arm is electrically contacted with the first switch terminal, the third elastic arm and the second elastic arm are provided with insulators at the positions where the third elastic arm and the second elastic arm are mutually abutted, so that the audio plug is not connected with the switch terminal group through signals, and meanwhile, the defect that the traditional insulator is directly damaged due to friction with the audio plug is overcome.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

Fig. 1 is a perspective view of an audio jack according to the present application;

FIG. 2 is a perspective view of an audio jack according to the present application from another angle;

FIG. 3 is an exploded perspective view of an audio jack according to the present application;

fig. 4 is a perspective view of a switch terminal set of the audio jack of the present application;

fig. 5 is a cross-sectional view of a switch terminal set of the audio jack of the present application;

fig. 6 is an exploded perspective view of the switch terminal set of the audio jack of the present application.

Description of the main component symbols:

an insulator body-10; a main body portion-11; a plug cavity-12; front end-13; a fixture block-14; notch-15; signal terminal slots-161, 162, 163; switch terminal slot-17; first, second and third slots-171, 172, 713; a grounding plate-20; a cover portion 21; a bending part-22; a butting portion 23; a weld-24; a clamping hole-25; signal terminals-31, 32, 33; a switch terminal group-40; a first switch terminal-41; a second switch terminal-42; third switch terminal-43.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings.

In the present application, the X direction shown in fig. 1 is the front, the Y direction is the right, and the Z direction is the upper.

Referring to fig. 1 to 3, the audio jack of the present application includes an insulating body 10, a plurality of

signal terminals

31, 32, 33 inserted into the insulating body 10, and a switch terminal set 40 inserted into the insulating body 10.

The insulation body 10 includes a main body 11, a plug cavity 12 disposed in the main body 11 in a front-rear direction, a plurality of

signal terminal slots

161, 162, 163 opened from an outer side of the main body 11 and communicated with the plug cavity 12, and a switch terminal slot 17 formed by extending forward from a rear end of the main body 11. The bottom of the front end part 13 of the main body part 11 is cut off to form an inclined surface, the top of the front end part 13 is provided with a notch 15 communicated with the inside of the plugging cavity 12, and the left side and the right side of the front end part 13 are provided with clamping blocks 14. The

signal terminal slots

161, 162, 163 allow the

signal terminals

31, 32, 33 to be inserted from the outside of the main body 11 and partially extend into the plug cavity 12. The switch terminal groove 17 comprises a first groove body 171, a second groove body 172 and a third groove body 173 which are sequentially arranged, at least part of positions of the first groove body 171, the second groove body 172 and the third groove body 173 are communicated with each other, and the third groove body 173 is communicated with the inserting cavity 12.

Each

signal terminal

31, 32, 33 includes a holding portion fixed in the

signal terminal groove

161, 162, 163, a contact portion extending from the holding portion into the plug cavity 12, and a solder foot extending from the holding portion; the signal terminal structure is the prior art and is not described herein.

The top surface of the front end part 13 of the main body part 11 is further buckled with a grounding piece 20, and the grounding piece 20 comprises a covering part 21 covering the top surface of the front end part 13, a bending part 22 formed by bending and extending downwards from the left side and the right side of the covering part 21, a clamping hole 25 arranged on the bending part 22 and buckled on the clamping blocks 14 on the left side and the right side of the front end part 13, a butting part 23 extending from the front end of the covering part 21 into the notch 15, and a welding part 24 formed by extending from the bending part 22. The abutting portion 23 abuts against the audio plug inserted into the plug cavity 12 to be grounded.

As shown in fig. 4 to fig. 6, the switch terminal set 40 includes a first switch terminal 41 inserted into the first slot 171, a second switch terminal 42 inserted into the second slot 172, and a third switch terminal 43 inserted into the third slot 173.

The first switch terminal 41 includes a first fixing frame 411, a first elastic arm 412 formed by tearing the first fixing frame 411, a contact convex hull 413 formed by punching towards the second switch terminal 42, a barb 414 formed on the side edge of the first fixing frame 411, and a first welding point 415 formed by extending from the first fixing frame 411. In a specific implementation process, the first elastic arm 412 may be omitted, and a contact convex hull 413 may be directly formed in the middle of the first fixing frame 411 by punching towards the bottom switch terminal group 42; alternatively, the middle portion of the first fixing frame 411 is directly used as a contact portion, and the contact convex hull 413 does not need to be formed by punching.

The second switch terminal 42 includes a second fixed frame 421, a second elastic arm 422 formed by tearing the second fixed frame 421 and extending obliquely toward the third switch terminal 43, an insulator 423 formed on a free end side of the second elastic arm 422, and a second solder portion 425 formed by extending from the second fixed frame 421. The lateral margin of the fixed frame 421 of second is equipped with barb 426, the insulator 423 shaping in the free end orientation of second elastic arm 422 third switch terminal 43 one side, the free end orientation of second elastic arm 422 contact convex closure 413 one side is equipped with electrical contact part 424.

The third switch terminal 43 includes a third frame 431, a third elastic arm 432 formed by tearing the third frame 431 and extending obliquely to the plugging cavity 12, and an elastic fastening arm 435 formed on a side of the third frame 431, wherein the fastening arm 435 is fastened in the third groove 173. The third elastic arm 432 includes a pressing protrusion 433 bent to extend into the plugging chamber 12 and a pressing end 434 bent from the pressing protrusion 433 toward the insulator 423.

In a specific implementation, the insulator 423 may be formed on the pressing end portion 434 of the third elastic arm 432, so that the third switch terminal 43 does not electrically contact with the second switch terminal 42.

The principle of the switch terminal group 40 is as follows: when the audio plug is inserted from the plugging cavity 12, the audio plug presses the pressing protrusion 433 positioned in the plugging cavity 12, so that the pressing end 434 presses the insulator 423 outwards, and finally the electrical contact part 424 of the second elastic arm 422 is forced to be electrically contacted with the contact protrusion 413 to realize a switch function, thereby prompting that the audio plug is inserted completely.

The switch terminal group 40 of the audio jack of the present application is provided with the switch terminal groove 17, in which the first to

third groove bodies

171, 172, 173 are sequentially arranged, and the first to

third groove bodies

171, 172, 173 are respectively inserted into the first, second,

third switch terminals

41, 42, 43, the third switch terminal 43 includes the third elastic arm 432, the free end of the third elastic arm 432 is bent to form the extrusion convex portion 433 extending to the plugging cavity, the second switch terminal 42 is provided with the second elastic arm 422, after the audio plug is inserted, the extrusion convex portion 433 is extruded to extrude the second elastic arm 422 and to make the second elastic arm 422 electrically contact the first switch terminal 41, the position where the third elastic arm 432 and the second elastic arm 422 are mutually abutted is provided with the insulator 423, so that the audio plug does not generate signal transmission with the switch terminal group 40, meanwhile, the defect that the traditional insulator is directly rubbed with the audio plug and is easily damaged is avoided.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An audio socket comprises an insulating body provided with a plug-in cavity, a plurality of signal terminals inserted in the insulating body and a switch terminal group inserted in the insulating body, and is characterized in that the insulating body is provided with a switch terminal groove, the switch terminal groove comprises a first groove body, a second groove body and a third groove body which are sequentially arranged and mutually communicated, the third groove body is communicated with the plug-in cavity, the switch terminal group comprises a first switch terminal, a second switch terminal and a third switch terminal, the first switch terminal, the second switch terminal and the third switch terminal are inserted in the first groove body, the second groove body and the third groove body, the third switch terminal comprises a third elastic arm extending into the plug-in cavity, the second switch terminal comprises a second elastic arm and a second welding spot portion, the second elastic arm extends obliquely from the third elastic arm, the first switch terminal comprises a first welding spot portion, and the second elastic arm is extruded by the third elastic arm to be electrically contacted with the first switch terminal, and an insulator is arranged at the extrusion position of the third elastic arm and the second elastic arm.

2. The audio jack of claim 1, wherein the third resilient arm includes a pressing protrusion extending into the cavity and a pressing end bent from the pressing protrusion toward the insulator, and an insulator is disposed at a contact position of the pressing end and the second resilient arm.

3. The audio jack of claim 2, wherein the insulator is integrally formed on the pressing end portion, and the insulator on a side of the pressing end portion facing the second elastic arm is in contact with the second elastic arm to achieve insulation.

4. The audio jack of claim 2, wherein the insulator is integrally formed on a side of the second resilient arm facing the pressing end portion, and the insulator on the side of the second resilient arm facing the pressing end portion is in contact with the pressing end portion to insulate.

5. The audio jack of any one of claims 2-4, wherein the third switch terminal includes a third frame fixed in the third slot and a latch arm extending from the third frame and latching in the third slot.

6. The audio jack according to claim 3 or 4, wherein the second switch terminal further includes a second frame fixed in the second groove, the second elastic arm is formed by tearing the second frame and extending obliquely to the third elastic arm, a free end side of the second elastic arm abuts against the pressing end portion, and the second solder portion is formed by extending from the second frame.

7. The audio jack of claim 6, wherein the first switch terminal comprises a first frame fixed in the first slot, a barb fixed with the first slot in an interference manner is arranged on the outer side of the first frame, and the first welding point is formed by extending from the first frame.

8. The audio jack of claim 7, wherein the first switch terminal further comprises a first resilient arm formed by tearing from the first frame body and extending obliquely to the second resilient arm, the first resilient arm being in electrical contact with the second resilient arm.

9. The audio jack of claim 8, wherein a free end side of the first resilient arm is stamped toward a side of the second resilient arm to form a contact bump, the contact bump being in electrical contact with the second resilient arm.

10. The audio jack of claim 1, wherein the housing includes a main body portion having the insertion cavity, a plurality of signal terminal slots formed in the main body portion for inserting the signal terminals, and the signal terminals include holding portions fixed in the signal terminal slots, contact portions extending from the holding portions into the insertion cavity, and solder tails extending from the holding portions.