CN210296173U

CN210296173U - Push switch

Info

Publication number: CN210296173U
Application number: CN201921010108.3U
Authority: CN
Inventors: 康昭镇
Original assignee: JUST CONNECTOR KUNSHAN CO Ltd
Current assignee: JUST CONNECTOR KUNSHAN CO Ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-04-10
Anticipated expiration: 2029-07-01

Abstract

A push switch comprises an insulating body, a first terminal and a second terminal which are formed on the insulating body, a metal shell covering the upper part of the insulating body, a push rod which can be pushed in a containing space enclosed by the metal shell and the insulating body, and a positioning mechanism which is assembled on one side of the insulating body and matched with the push rod, wherein a conducting strip is arranged below the push rod, and the push rod can be positioned in a state of being contacted with the first terminal and a state of conducting the first terminal and the second terminal by the positioning mechanism; the application can position the disconnection and the conduction states through different pressing times.

Description

Push switch

Technical Field

The present application relates to the field of electronic switches, and more particularly, to a push switch.

Background

The existing electronic switches, such as volume switches and power switches on the side of mobile phones, all adopt a push switch structure, that is, a drum-shaped contact element with elastic force is arranged inside a switch tube body, the drum-shaped contact element is pressed and elastically deformed to contact a contact element below the drum-shaped contact element for conduction, and a push rod is pushed back to an initial state through the drum-shaped contact element. The patent application No. 200620075898 of the people's republic of China discloses a push switch, wherein a push rod is pushed in to enable a push rod to extrude a movable terminal to generate elastic deformation so as to conduct a static terminal to achieve the function of the switch. However, the switch has no automatic return function and needs to be pushed and pulled manually.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a push switch that can realize a normally closed conducting state, a conducting state by a single push, and a function of pushing out the conducting state again.

In order to solve the technical problem, the application provides a push switch, including insulator, shaping in first, second terminal on the insulator, cover in the metal casing of insulator top, can in metal casing with the insulator encloses the push rod that promotes in the accommodating space who establishes and assemble in insulator one side and with push rod complex positioning mechanism, the push rod below is equipped with the conducting strip, the push rod can by positioning mechanism be located with the state of first terminal contact and switch on the state of first, second terminal.

Preferably, the insulating body includes a base portion, a peripheral wall integrally extending upward from an outer periphery of the base portion, an opening provided in the peripheral wall on one side, the accommodating space defined by the peripheral wall and the base portion, and a slide groove provided on one side of the accommodating space in a lateral direction for mounting the positioning mechanism.

Preferably, the first and second terminals are formed on the base portion, and each of the first and second terminals includes a fixing portion formed in the base portion, an elastic contact portion extending obliquely from the fixing portion into the receiving space, and a solder fillet extending from the fixing portion to a bottom surface of the base portion.

Preferably, the base body portion is provided with an avoidance portion at the position of the elastic contact portion to avoid elastic deformation of the elastic contact portion, the bottom surface of the base body portion is further attached with a printed circuit board and a cover plate covering under the printed circuit board, and the solder legs are welded to the printed circuit board.

Preferably, the push rod further comprises an insulator and a pressing end formed at the rear end of the insulator, and the conductive sheet is formed on the lower bottom surface of the insulator.

Preferably, the top of the insulator is provided with a limiting groove and a protruding portion located on the limiting groove, the metal shell comprises a plate body portion and a side wall located outside the peripheral wall and formed by bending and extending from the periphery of the plate body portion, and the plate body portion is further torn to form a pressing elastic sheet extending into the limiting groove.

Preferably, the printed circuit board is a flexible board, extends out of the press switch, and is provided with a board-to-board connector.

Preferably, the positioning mechanism comprises a sliding block, a spring arranged between the sliding block and the peripheral wall, and a positioning rod, wherein a heart-shaped groove is formed in the sliding block, and one end of the positioning rod is positioned in the heart-shaped groove.

This application push switch in insulator set up with the positioning mechanism that the push rod interferes, make the push rod is in switching on first, second terminal and disconnection first, second terminal are through pressing the push rod realizes.

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 a push switch of the present application;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a perspective view of a push rod of the push switch of the present application;

FIG. 4 is a perspective view of the push rod of the push switch of the present application at another angle;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 6 is a perspective view of the insulating body of the push switch of the present application;

fig. 7 is a three-dimensional assembly view of the insulating body, the conductive terminals and the cover plate of the push switch of the present application;

fig. 8 is a perspective view of the insulating body, the conductive terminal and the positioning mechanism of the push switch of the present application.

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.

Referring to fig. 1 and 2, the push switch of the present application includes an insulating body 10, a first terminal 61 and a second terminal 62 formed on the insulating body 10, a metal shell 20 covering the insulating body 10, a push rod 30 capable of being pushed in an accommodating space 14 enclosed by the metal shell 20 and the insulating body 10, and a positioning mechanism 70 assembled at one side of the insulating body 10 and engaged with the push rod 30.

As shown in fig. 3 to 5, the push rod 30 includes an insulator 31, a conductive sheet 33 formed in the insulator 31 and having a bottom surface exposed from the insulator 31, and a pressing end 32 formed at a rear end of the insulator 31. The top of the insulator 31 is provided with a limiting groove 311 and a boss 312 located on the limiting groove 311.

As shown in fig. 6 to 8, the insulating main body 10 includes a base portion 11, a peripheral wall 12 integrally extending from the outer periphery of the base portion 11, an opening 13 formed in the peripheral wall 12 on one side, the accommodating space 14 defined by the peripheral wall 12 and the base portion 11, and a sliding groove 15 formed in one side of the accommodating space 14 in the lateral direction for mounting the positioning mechanism 70. The base portion 11 is formed with the first and

second terminals

61 and 62, which respectively include a first fixing portion and a second fixing portion (not numbered) formed in the base portion 11,

elastic contact portions

611 and 621 extending from the fixing portions obliquely into the receiving space 14, and

solder tails

612 and 622 extending from the fixing portions to the bottom surface of the base portion 11. The base portion 11 is provided with an escape portion 111 at the position of the

elastic contact portions

611 and 612 to escape elastic deformation of the

elastic contact portions

611 and 621. A plurality of clamping blocks 121 are also arranged on the peripheral wall 12.

The positioning mechanism 70 includes a slider 71, a spring 73 disposed between the slider 71 and the peripheral wall 12, and a positioning lever 72. The positioning mechanism 70 is a conventional one, and is mostly used for withdrawing a card from a card holder product, that is, the position of the slider 71 is changed and positioned by a heart-shaped channel arranged on the slider 71 or the insulating body 10 and a positioning rod 72, and the spring 73 provides an elastic restoring force of the slider 71. The slider 71 is provided with a pushing portion (not numbered) extending into the accommodating space 14, and the front end of the push rod 30 can contact and drive the pushing portion to move. The positioning mechanism is not described in detail here.

As shown in fig. 1, the metal shell 20 includes a plate portion 21 and a sidewall 22 formed by bending and extending from the outer periphery of the plate portion and located outside the peripheral wall 12. The side wall 22 is provided with a plurality of fastening holes 23 fastened with the fastening blocks 121. The plate body 21 is further torn and extended toward the accommodating space 14 to form a pressing elastic sheet 24, the pressing elastic sheet 24 is pressed in a limiting groove 311 of the push rod 30, and when the push rod 30 is inserted into the accommodating space 14, the pressing elastic sheet 24 is bounced into the limiting groove 311 to limit the push rod 30 to be pulled out. When the pressing elastic sheet 24 passes through, the protruding part 312 in the limiting groove 311 prompts the hand feeling to display that the switch is on or the switch is turned off.

The push switch further includes a printed circuit board 40 attached to the bottom surface of the base portion 11 of the insulating body 10 and a cover plate 50 covering the bottom surface of the printed circuit board 40, and the

solder tails

612 and 622 of the first and

second terminals

61 and 62 are soldered to the printed circuit board 40. The printed circuit board 40 is a flexible board, extends out of the press switch, and is provided with a board-to-board connector.

The working principle of the push switch of the present application will be described below:

the push rod 30 is inserted into the accommodating space 14 between the insulating body 10 and the metal shell 20, and when the push rod 30 is in an extended state, the conductive sheet 33 at the bottom of the push rod 30 is in electrical contact with the elastic contact portion 611 of the first terminal 61; when the push rod 30 continues to push inwards, the front end of the conductive sheet 33 and the elastic contact part 621 of the second terminal 62 make the first and

second terminals

61, 62 in conductive contact; when the push rod 30 is further pushed, the slide block 71 is further pushed to make the positioning rod 72 exit from the locking position of the heart-shaped slot and exit under the elastic force of the spring 73, so that the conductive sheet 33 of the push rod 30 is disconnected from the contact with the second terminal 62 and returns to the initial position.

The push switch is provided with a positioning mechanism interfering with the push rod 30 in the insulating body 10, so that the push rod 30 is realized by pressing the push rod 30 when the first and

second terminals

61 and 62 are connected and the first and

second terminals

61 and 62 are disconnected.

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. A push switch is characterized by comprising an insulating body, a first terminal and a second terminal which are formed on the insulating body, a metal shell covering the upper portion of the insulating body, a push rod capable of being pushed in a containing space formed by the metal shell and the insulating body in an enclosing mode, and a positioning mechanism assembled on one side of the insulating body and matched with the push rod, wherein a conducting strip is arranged below the push rod, and the push rod can be positioned in a state of being in contact with the first terminal and a state of conducting the first terminal and the second terminal by the positioning mechanism.

2. The push switch according to claim 1, wherein the insulating body includes a base portion, a peripheral wall integrally formed extending upward from an outer periphery of the base portion, an opening provided in the peripheral wall on one side, the accommodating space defined by the peripheral wall and the base portion, and a slide groove provided on one side in a lateral direction of the accommodating space for mounting the positioning mechanism.

3. The push switch of claim 2, wherein the first and second terminals are formed on the base portion, and each of the first and second terminals includes a fixing portion formed in the base portion, an elastic contact portion extending obliquely from the fixing portion into the receiving space, and a solder tail extending from the fixing portion to a bottom surface of the base portion.

4. The push switch according to claim 3, wherein the base body has an escape portion at the position of the elastic contact portion to avoid elastic deformation of the elastic contact portion, a printed circuit board and a cover plate covering under the printed circuit board are further attached to a bottom surface of the base body, and the solder leg is soldered to the printed circuit board.

5. The push switch of claim 3, wherein the push rod further comprises an insulator and a push end formed at a rear end of the insulator, and the conductive sheet is formed on a lower bottom surface of the insulator.

6. The push switch according to claim 5, wherein the top of the insulator has a limiting groove and a protrusion located on the limiting groove, the metal shell includes a plate body and a sidewall bent and extended from the periphery of the plate body and located outside the peripheral wall, and the plate body is further torn to form a pressed elastic piece extending into the limiting groove.

7. The push switch of claim 4, wherein said printed circuit board is a flexible board extending beyond said push switch, said flexible board having board-to-board connections.

8. The push switch of claim 2 wherein said positioning mechanism includes a slider, a spring disposed between said slider and said peripheral wall, and a positioning rod, said slider having a heart-shaped channel therein, said positioning rod having one end positioned within said heart-shaped channel.