CN212084878U

CN212084878U - Micro-switch

Info

Publication number: CN212084878U
Application number: CN202020641247.2U
Authority: CN
Inventors: 余正明; 彭建兵
Original assignee: Huizhou Zhengpai Kedian Co ltd
Current assignee: Huizhou Zhengpai Kedian Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-12-04
Anticipated expiration: 2030-04-24

Abstract

The application discloses a microswitch which comprises a mounting base, a light correlation device, an upper cover, a moving part and a pressing component, wherein the light correlation device is arranged at the lower part of the mounting base; the upper cover is covered on the mounting seat and combined with the mounting seat to form an accommodating cavity; the movable piece is arranged in the accommodating cavity and comprises a light blocking part and a limiting part; the pressing component is arranged in the accommodating cavity and penetrates out of the upper cover; along the first direction, when applying pressure to the pressing component, the pressing component moves along the first direction and drives the moving part to move along the first direction, so that the light blocking part blocks or is communicated with a light ray correlation loop of the light correlation device, and the limiting part is used for limiting the distance of the light blocking part moving along the first direction. The moving part in the micro-gap switch of this application is through being provided with spacing portion, restricts the displacement distance of the portion that is in the light through spacing portion, has improved this micro-gap switch's stability and reliability.

Description

Micro-switch

Technical Field

The application relates to the technical field of switches, in particular to a microswitch.

Background

The microswitch is a switch which has a minute contact interval and a quick action mechanism, performs a switching action by a specified stroke and a specified force, is covered by a shell, and has a driving rod outside. The microswitch in which the on-off of the switch is realized by the principle of light correlation is called an optical microswitch.

But the existing optical microswitch has low reliability,

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems of the prior art, the present application mainly aims to provide a microswitch with high reliability.

In order to achieve the above object, the following technical solutions are specifically adopted in this application:

the application discloses micro-gap switch, this micro-gap switch includes:

a mounting seat;

the light correlation device is arranged at the lower part of the mounting seat;

the upper cover is covered on the mounting seat and combined with the mounting seat to form an accommodating cavity;

the movable piece is arranged in the accommodating cavity and comprises a light blocking part and a limiting part;

the pressing component is arranged in the accommodating cavity and penetrates out of the upper cover;

when pressure is applied to the pressing component along the first direction, the pressing component moves along the first direction and drives the moving part to move along the first direction, so that the light blocking part blocks or is communicated with a light ray correlation loop of the light correlation device, and the limiting part is used for limiting the distance of the light blocking part moving along the first direction.

Preferably, the moving part further includes a connecting portion, the light blocking portion is connected with the limiting portion through the connecting portion, a limiting groove and a first through hole are formed in the mounting base, the connecting portion is arranged in the accommodating cavity, the light blocking portion penetrates through the first through hole, and the limiting portion penetrates through the limiting groove.

Preferably, the light blocking part is provided with a light transmitting groove;

when pressure is applied to the pressing component along the first direction, the pressing component moves along the first direction and drives the light blocking part to move along the first direction, so that the light ray correlation loop of the light correlation device can be communicated through the light transmission groove.

Preferably, the pressing assembly comprises a button and a moving plate, and the button and the moving plate are respectively arranged in the accommodating cavity;

one end of the movable piece is connected with the mounting seat, and the other end of the movable piece is connected with the movable piece; one end of the button is abutted to the moving piece, and the other end of the button penetrates out of the upper cover.

Preferably, the mounting seat comprises a base and a fixing piece, and the upper cover is covered on the fixing piece to form the accommodating cavity;

the fixing piece is arranged on the base and located in the containing cavity, the moving piece is connected with the fixing piece, and the fixing piece and the moving piece are both made of metal materials.

Preferably, the base is provided with a fixing groove, and the fixing piece is connected with the fixing groove in a clamping manner.

Preferably, the microswitch further comprises a circuit board, the circuit board is arranged at the lower part of the mounting seat, and the light correlation device is arranged on the circuit board.

Preferably, the light correlation device is disposed on a side of the circuit board close to the upper cover.

Preferably, the light correlation device is disposed on a side of the circuit board away from the upper cover.

Preferably, the mounting base comprises a base and a lower base, the circuit board and the lower base are respectively arranged at the lower part of the base, and the lower base is positioned at one side of the circuit board far away from the upper cover.

Compared with the prior art, the movable part in the microswitch comprises the light blocking part and the limiting part, and the light ray correlation loop of the light correlation device can be blocked or communicated by moving the light blocking part, so that the microswitch is switched on or off; the limiting part limits the moving distance of the light blocking part, and the stability and reliability of the microswitch are improved.

Drawings

Fig. 1 is a cross-sectional view of a microswitch provided in an embodiment of the present application.

Fig. 2 is an exploded perspective view of a microswitch provided in an embodiment of the present application.

Fig. 3 is a cross-sectional view of a microswitch from another angle provided by an embodiment of the present application.

Fig. 4 is a perspective view of a mounting seat in a microswitch provided in an embodiment of the present application.

Fig. 5 is a perspective view of another angle of a mounting seat in a microswitch provided in an embodiment of the present application.

Fig. 6 is a perspective assembly view of a microswitch provided in an embodiment of the present application.

Fig. 7 is a cross-sectional view of a microswitch provided in yet another embodiment of the present application.

Fig. 8 is an exploded perspective view of a microswitch provided in another embodiment of the present application.

Fig. 9 is a perspective view of a microswitch provided in another embodiment of the present application.

Fig. 10 is a perspective view of another angle of a microswitch provided in accordance with yet another embodiment of the present application.

Fig. 11 is a cross-sectional view of a microswitch provided in yet another embodiment of the present application.

Fig. 12 is an exploded perspective view of a microswitch provided in yet another embodiment of the present application.

Fig. 13 is another angular cross-sectional view of a microswitch provided in yet another embodiment of the present application.

Fig. 14 is a perspective view of a mounting seat in a microswitch according to yet another embodiment of the present application.

Fig. 15 is a perspective view of another angle of a mounting seat in a microswitch according to yet another embodiment of the present application.

Fig. 16 is a perspective assembly view of a microswitch provided in yet another embodiment of the present application.

Fig. 17 is a cross-sectional view of a micro-switch provided in accordance with another embodiment of the present application.

Fig. 18 is an exploded perspective view of a microswitch provided in another embodiment of the present application.

Fig. 19 is a perspective assembly view of a microswitch provided in another embodiment of the present application.

Fig. 20 is a perspective assembly view of another angle of a microswitch provided in another embodiment of the present application.

The attached drawings are as follows:

1. a mounting seat; 11. a base; 111. a first through hole; 112. a limiting groove; 113. a first correlation channel; 114. fixing grooves; 12. a fixing member; 13. a limiting member; 14. a lower base plate; 141. a second correlation channel; 15. buckling; 16. a positioning column; 2. an upper cover; 21. an opening; 3. a moving plate; 4. a movable member; 41. a light blocking section; 411. a light-transmitting groove; 42. a limiting part; 421. connecting grooves; 43. a connecting portion; 5. a light correlation device; 6. a button; 61. a pressing part; 62. a dust pocket; 63. a dust-proof groove; 7. a circuit board; 71. a card slot; 72. positioning holes; 73. a second through hole; 100. an accommodating chamber; 200. a micro switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Referring to fig. 1, an embodiment of the present application discloses a micro switch, where the micro switch 200 includes a mounting base 1, an upper cover 2, a moving plate 3, a moving member 4, a light correlation device 5, and a button 6, where the moving plate 3 and the button 6 together form a pressing component. The light correlation device 5 is disposed at the lower portion of the mounting base 1, and the upper cover 2 covers the mounting base 1 to form an accommodating cavity 100. The moving plate 3, the moving part 4 and the button 6 are arranged in the accommodating cavity 100 respectively, one end of the moving plate 3 is connected with the mounting base 1, the other end of the moving plate 3 is connected with the moving part 4, the top of the button 6 penetrates out of the upper cover 2, and the bottom of the button 6 abuts against the moving plate 3.

When the microswitch is turned on, pressure is applied to the button 6 along a first direction (the direction of the button pointing to the mounting base, namely the-Z direction in the drawing), the button 6 moves along the first direction, the pressure along the first direction is applied to the moving plate 3, the moving plate 3 moves along the first direction, the moving plate 3 drives the moving part 4 to move along the first direction while moving along the first direction, and the moving part 4 is enabled to block or communicate a light ray correlation loop of the light correlation device 5, so that the microswitch is turned on or turned off.

Referring to fig. 1 to 6, the mounting base 1 includes a base 11, a fixing member 12 and a limiting member 13, wherein one end of the base 11 is provided with a fixing groove 114, the other end of the base 11 is provided with a first through hole 111 and a limiting groove 112, and the lower portion of the base 11 is provided with a first injection channel 113. The upper cover 2 is engaged with the base 11 to form an accommodating chamber 100, and the fixing member 12 is disposed in the accommodating chamber 100 and engaged with the fixing groove 114. The limiting member 13 is disposed in the accommodating cavity 100 and located at the limiting groove 112, and is integrally formed with the base 11. The first shooter passage 113 communicates with the first through hole 111.

The movable member 4 includes a light blocking portion 41, a limiting portion 42 and a connecting portion 43, an upper portion of the light blocking portion 41 is connected to an upper portion of the limiting portion 42 through the connecting portion 43 to form an approximately "n" -shaped structure, and a connecting groove 421 is formed in an upper portion of the limiting portion 42. Further, the light blocking portion 41, the stopper portion 42, and the connecting portion 43 are integrally formed. During assembly, the movable member 4 is disposed in the accommodating cavity 100, so that the connecting portion 43 is located in the accommodating cavity 100, the light blocking portion 41 is disposed in the first through hole 111, and the limiting portion 42 is disposed in the limiting groove 112. One end of the moving plate 3 is sleeved on the fixed member 12 and connected with the fixed member 12, and the other end of the moving plate 3 passes through the lower part of the limiting member 13 and extends into the connecting groove 421 to be connected with the moving member 4. The light correlation device 5 is positioned in the first correlation channel 113

When pressure is applied to the button 6 along the first direction, the movable piece 4 is driven to move along the first direction by the movement of the movable piece 3, so that the light blocking portion 41 blocks or communicates with the light ray correlation loop of the light correlation device 5, and the distance of the light blocking portion 41 moving along the first direction is limited by the limiting portion 42. The stability and the reliability of the microswitch are improved.

In this embodiment, the fixed member 12 and the moving plate 3 are made of metal material, so as to avoid the generation of debris when the two move relatively, and further improve the reliability of the microswitch.

Referring to fig. 2 and 5, the mounting base 1 further includes a buckle 15 and a positioning column 16, the buckle 15 and the positioning column 16 are disposed at the bottom of the base 11 and are integrally formed with the base 11. The microswitch also comprises a circuit board 7, and the circuit board 7 is provided with a clamping groove 71, a positioning hole 72 and a second through hole 73. The clamping groove 71 corresponds to the buckle 15, the positioning hole 72 corresponds to the positioning column 16, the second through hole 73 corresponds to the first through hole 111, and the first through hole 111, the first correlation channel 113 and the second through hole 73 are communicated with each other. The light correlation device 5 is a signal lamp, which is composed of an emitting end and a receiving end. During assembly, the signal lamp is disposed on the circuit board 7, and the transmitting end and the receiving end are respectively disposed on two sides of the second through hole 73. When the positioning column 16 is inserted into the positioning hole 72, positioning is performed, and the buckle 15 is inserted into the slot 71 for clamping, so that the base 11 and the circuit board 7 are clamped and fixed. At this time, the light correlation device 5 is located in the first correlation channel 113.

Further, the button 6 includes a pressing portion 61 and a dust-proof pocket 62, and the dust-proof pocket 62 is sleeved on the pressing portion 61, so that the periphery of the pressing portion 61 has a dust-proof groove 63. The upper cover 2 is opened with an opening 21. In assembly, the push button 6 is placed in the housing cavity 100 such that the top of the pressing portion 61 passes through the opening 21 and the bottom of the pressing portion 61 abuts against the rotor 3.

In a natural state, dust directly falls into the dust-proof groove 63 after entering the microswitch from the gap between the opening 21 and the pressing portion 61, so that the dust is prevented from entering the first opposite-emitting channel 113 and affecting the normal operation of the optical circuit of the signal lamp.

In this embodiment, the on-off mode between the light blocking portion 41 and the signal lamp in the microswitch is normally open, and the specific working process is as follows: in a natural state, the signal lamp is in a correlation state, and at the moment, a circuit in the microswitch is in a disconnection state. The button 6 is pressed to apply pressure along the first direction to the moving piece 3 by the button 6, and the moving piece 3 moves along the first direction under the action of the pressure, so that the moving piece 4 is driven to move along the first direction. The light blocking part 41 is moved to the position of the first incident channel 113 to block the incident of the traffic light, and at this time, the circuit in the microswitch is in a conducting state.

Based on the above embodiment, referring to fig. 7 to 10, the difference between the embodiment and the embodiment is that in the embodiment, the mounting base 1 further includes a lower plate 14, the lower plate 14 is disposed at the lower portion of the base 11 and located at a side of the circuit board 7 away from the upper cover 2, the lower plate 14 is provided with a second opposite-radiation channel 141, and the second opposite-radiation channel 141, the second through hole 73 and the first through hole 111 are communicated with each other. The light correlation device 5 (i.e., the signal lamp) is disposed on a side of the circuit board 7 away from the upper cover 2 and is located in the second correlation channel 141. In this embodiment, since the light correlation device 5 is disposed on the side of the circuit board 7 away from the upper cover 2, the lower plate 14 needs to be disposed to shield the light emitted from the signal lamp by the lower plate 14.

In this embodiment, the on-off mode between the light blocking portion 41 of the microswitch 200 and the signal lamp is normally open, and the specific working process is as follows: in a natural state, the signal lamp is in a correlation state, and at the moment, a circuit in the microswitch is in a disconnection state. The button 6 is pressed to apply pressure along the first direction to the moving piece 3 by the button 6, and the moving piece 3 moves downwards along the first direction under the action of the pressure, so that the moving piece 4 is driven to move along the first direction. The light blocking part 41 is moved to the position of the second correlation channel 141 to block the correlation of the light correlation device 5, and at this time, the circuit in the microswitch is in a conducting state.

Based on the above embodiments, the present application further discloses a specific implementation manner, please refer to fig. 11 to fig. 16, which is different from the above embodiments in that in the present embodiment, the light blocking portion 41 is provided with a light-transmitting slot 411.

In this embodiment, the light blocking portion 41 of the microswitch and the signal lamp are normally closed, and the specific working process is as follows: in the natural state, the opposite emission of the signal lamp is blocked by the light blocking portion 41, and at this time, the circuit in the microswitch is in the off state. The button 6 is pressed to apply pressure along the first direction to the moving piece 3 by the button 6, and the moving piece 3 moves along the first direction under the action of the pressure, so that the moving piece 4 is driven to move along the first direction. The light-transmitting slot 411 is moved to the position of the first opposite channel 113, and at this time, the signal lamp is in the opposite state, and the circuit in the microswitch is in the conducting state.

Based on the above embodiments, the present application further discloses a specific implementation manner, please refer to fig. 17 to fig. 20, which is different from the above embodiments in that in the present embodiment, the light blocking portion 41 is further provided with a light-transmitting slot 411. The mounting base 1 further includes a lower base plate 14, the lower base plate 14 is disposed at the lower portion of the base 11 and located at a side of the circuit board 7 away from the upper cover 2, the lower base plate 14 is provided with a second opposite-radiation channel 141, and the second opposite-radiation channel 141, the second through hole 73 and the first through hole 111 are communicated with each other. The light correlation device 5 (i.e., the signal lamp) is disposed on a side of the circuit board 7 away from the upper cover 2 and is located in the second correlation channel 141. In this embodiment, since the light correlation device 5 is disposed on the side of the circuit board 7 away from the upper cover 2, the lower plate 14 needs to be disposed to shield the light emitted from the signal lamp by the lower plate 14.

In this embodiment, the light blocking portion 41 of the microswitch and the signal lamp are normally closed, and the specific working process is as follows: in the natural state, the opposite emission of the signal lamp is blocked by the light blocking portion 41, and at this time, the circuit in the microswitch is in the off state. The button 6 is pressed to apply pressure along the first direction to the moving piece 3 by the button 6, and the moving piece 3 moves along the first direction under the action of the pressure, so that the moving piece 4 is driven to move downwards. The light-transmitting slot 411 is located at the position of the second opposite-emitting channel 141, at this time, the signal lamp is in the opposite-emitting state, and the circuit in the micro-switch-on state is in the conducting state.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A micro-switch, comprising:

a mounting seat;

2. The microswitch of claim 1, wherein the movable member further comprises a connecting portion, the light blocking portion is connected with the limiting portion through the connecting portion, the mounting base is provided with a limiting groove and a first through hole, the connecting portion is disposed in the accommodating cavity, the light blocking portion is disposed through the first through hole, and the limiting portion is disposed through the limiting groove.

3. The microswitch of claim 2, wherein the light blocking portion is provided with a light transmitting groove;

4. The microswitch of any one of claims 1 to 3, wherein the pressing assembly comprises a button and a moving plate, and the button and the moving plate are respectively arranged in the accommodating cavity;

5. The microswitch of claim 4, wherein the mounting base comprises a base and a fixing piece, and the upper cover is arranged on the fixing piece to form the accommodating cavity;

6. The microswitch of claim 5, wherein the base is provided with a fixing groove, and the fixing member is connected with the fixing groove in a clamping manner.

7. The micro-switch according to any one of claims 1 to 3, further comprising a circuit board disposed at a lower portion of the mounting base, wherein the light correlation device is disposed on the circuit board.

8. The microswitch of claim 7, wherein the light correlation device is disposed on a side of the circuit board adjacent to the top cover.

9. The microswitch of claim 7, wherein the light correlation device is disposed on a side of the circuit board away from the top cover.

10. The microswitch of claim 9, wherein the mounting base comprises a base and a lower base plate, the circuit board and the lower base plate are respectively arranged at the lower part of the base, and the lower base plate is positioned at one side of the circuit board far away from the upper cover.