CN216698167U - Micro-gap switch button limit structure - Google Patents
Micro-gap switch button limit structure Download PDFInfo
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- CN216698167U CN216698167U CN202123021131.2U CN202123021131U CN216698167U CN 216698167 U CN216698167 U CN 216698167U CN 202123021131 U CN202123021131 U CN 202123021131U CN 216698167 U CN216698167 U CN 216698167U
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Abstract
The utility model discloses a limit structure of a microswitch button, which comprises a shell, the microswitch button, a microswitch shrapnel, a common terminal and a normally open terminal, wherein the shell is provided with a first end and a second end; the interior of the shell is provided with a containing cavity; the inner side wall of the shell is provided with an upper stroke limiting groove and a lower stroke limiting groove, and the upper end and the lower end of the upper stroke limiting groove and the lower stroke limiting groove are respectively provided with an upper limiting part and a lower limiting part; the micro switch button extends into the upper and lower stroke limiting grooves, and the micro switch button can move up and down between the upper limiting part and the lower limiting part. Therefore, the microswitch button is limited up and down, the upper limit has the effect of ensuring that the height of the microswitch button is not changed after the microswitch button is reset, and the lower limit has the effect of ensuring that the downward pressing overtravel of the microswitch button is not too long, so that the service life of the microswitch button is protected; meanwhile, the microswitch button is internally arranged, so that the microswitch is not easily influenced by external dust, and the use precision and the control feasibility of the key switch are favorably improved.
Description
Technical Field
The utility model relates to the technical field of key switches, in particular to a limit structure of a microswitch button.
Background
Taking a mouse button switch as an example, in the traditional technology, a microswitch is often used, and comprises an insulating base, an upper shell, a microswitch button, a microswitch shrapnel, a common terminal and a normally open terminal; the public terminal and the normally open terminal are respectively provided with a public closed end and a normally open closed end which are protruded and exposed at the upper side of the inner bottom of the accommodating cavity; one end of the micro-motion elastic sheet is electrically connected with the public closed end, and the other end of the micro-motion elastic sheet is acted by the micro-motion switch button and can be selectively contacted with or disconnected from the normally open closed end; because the micro-gap switch button exposes the shell, when pressing, there is the hidden danger that dirt got into, moreover, the overstroke when pushing down because of the micro-gap switch button easily leads to the micro-gap shell fragment tired, and after repetitious usage, the micro-gap shell fragment is impaired, influences key switch performance and life.
Therefore, a new technical solution needs to be developed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to the defects existing in the prior art, and a main object of the present invention is to provide a limit structure for a microswitch button, which ensures that the height of the microswitch button is not changed after the microswitch button is reset, and also ensures that the downward pressing overtravel of the microswitch button is not too long, thereby playing a role in protecting the service life of the microswitch button; meanwhile, the microswitch button is internally arranged, so that the microswitch is not easily influenced by external dust, and the use precision and the control feasibility of the key switch are favorably improved.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a limit structure of a microswitch button comprises a shell, the microswitch button, a microswitch elastic sheet, a common terminal and a normally open terminal; the interior of the shell is provided with an accommodating cavity, and the common terminal and the normally open terminal are respectively provided with a common closed end and a normally open closed end which are protruded to the upper side of the inner bottom of the accommodating cavity; one end of the micro-motion elastic sheet is electrically connected with the public closed end, and the other end of the micro-motion elastic sheet is acted by the micro-motion switch button and can be selectively contacted with or disconnected from the normally open closed end;
the inner side wall of the shell is provided with an upper stroke limiting groove and a lower stroke limiting groove, and the upper end and the lower end of the upper stroke limiting groove and the lower stroke limiting groove are respectively provided with an upper limiting part and a lower limiting part; the micro switch button extends into the upper and lower stroke limiting grooves, and the micro switch button can move up and down between the upper limiting part and the lower limiting part.
As a preferable scheme, the up-down stroke limiting groove is arranged on the left side wall and/or the right side wall of the shell; the front end and the rear end of the up-down stroke limit groove are respectively provided with a front limit part and a rear limit part, and the front side and the rear side of the microswitch button are respectively limited by the front limit part and the rear limit part.
Preferably, the housing includes an insulating base and a cavity housing, the upper and lower stroke limiting grooves are disposed on an inner sidewall of the cavity housing, the insulating base is assembled at a bottom of the cavity housing, and the lower limiting portion is disposed at a top of the insulating base.
As a preferred scheme, the microswitch button is provided with an elastic sheet pressing part and a lower limit adapting part; the elastic sheet abutting part is positioned above the micro-motion elastic sheet, and when the micro-motion switch button is pressed, the elastic sheet abutting part abuts downwards against the micro-motion elastic sheet; the lower limiting adapting part is arranged downwards in a protruding mode to exceed the bottom end of the elastic sheet pressing part.
As a preferable scheme, the microswitch button is provided with a main body part extending leftwards and rightwards, a pressure-bearing convex part is arranged in the middle of the upper end of the main body part, the upper sides of the left end and the right end of the main body part are used as upper limit adapting parts, the upper limit adapting parts are positioned below the upper limit parts, and the lower limit adapting parts integrally extend downwards from the lower sides of the left end and the right end of the main body part to be convexly arranged.
As a preferred scheme, the upper end of the cavity shell is provided with an avoiding hole, an outer button is arranged in the avoiding hole, and the outer button can be pressed to act on a pressed convex part of the microswitch button.
As a preferable scheme, the pressing axial direction of the outer button and the axial direction of the pressed convex part of the microswitch button are arranged in parallel; and the projection area of the avoidance hole is far away from the micro switch button so as to keep a distance from the micro switch button.
Compared with the prior art, the microswitch push button has obvious advantages and beneficial effects, and particularly, according to the technical scheme, the microswitch push button is limited up and down, the upper limit has the effect of ensuring that the height of the microswitch push button is not changed after the microswitch push button is reset, and the lower limit has the effect of ensuring that the downward pressing overtravel of the microswitch push button is not too long, so that the service life of the microswitch is protected; meanwhile, the microswitch button is internally arranged, so that the microswitch is not easily influenced by external dust, and the use precision and the control feasibility of the key switch are favorably improved.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is an assembled view of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an embodiment of the present invention;
FIG. 4 is another cross-sectional view of an embodiment of the present invention;
FIG. 5 is a partial exploded view of an embodiment of the present invention;
FIG. 6 is another partially exploded view of an embodiment of the present invention;
FIG. 7 is a perspective view of a chamber housing of an embodiment of the present invention;
FIG. 8 is another angular perspective view of the chamber housing of an embodiment of the present invention;
fig. 9 is a perspective view of a microswitch button of an embodiment of the utility model.
The attached drawings indicate the following:
the touch switch comprises a shell 1, a micro switch button 2, a micro elastic sheet 3, a common terminal 4, a normally open terminal 5, an accommodating cavity 11, a common closed end 41, a normally open closed end 51, an up-down stroke limiting groove 12, an upper limiting part 121, a lower limiting part 122, a front limiting part 123, a rear limiting part 124, an insulating base 101, a cavity shell 102, a middle cover 103, an upper cover 104, an elastic sheet pressing part 21, a lower limiting adapting part 22, a main body part 23, a pressed convex part 24, an upper limiting adapting part 25, an avoiding hole 1021, an outer button 6, a light touch elastic sheet 7, a third terminal 8, a light touch switch pressing piece 9 and a light touch switch cavity cover 10.
Detailed Description
Fig. 1 to 9 show specific structures of an embodiment of the present invention.
A limit structure of a microswitch button comprises a shell 1, a microswitch button 2, a microswitch shrapnel 3, a common terminal 4 and a normally open terminal 5; the interior of the shell 1 is provided with an accommodating cavity 11, and the common terminal 4 and the normally open terminal 5 are respectively provided with a common closed end 41 and a normally open closed end 51 which are protruded out of the upper side of the inner bottom of the accommodating cavity 11; one end of the micro spring plate 3 is electrically connected with the common closed end 41, and the other end of the micro spring plate 3 is acted by the micro switch button 2 to be selectively contacted with or disconnected from the normally open closed end 51.
An upper and lower travel limit groove 12 is formed in the inner side wall of the housing 1, and an upper limit portion 121 and a lower limit portion 122 are respectively formed at the upper and lower ends of the upper and lower travel limit groove 12; the microswitch button 2 extends into the up-down stroke limiting groove 12, and the microswitch button 2 can move up and down between the upper limiting part 121 and the lower limiting part 122.
Generally, the up-down stroke limiting groove 12 is arranged on the left side wall and/or the right side wall of the shell 1; the upper and lower stroke limit grooves 12 are provided at front and rear ends thereof with front and rear limit portions 123 and 124, respectively, and the microswitch buttons 2 are limited at front and rear sides thereof by the front and rear limit portions 123 and 124, respectively.
In this embodiment, the housing 1 includes an insulating base 101 and a cavity housing 102, the up-down stroke limiting groove 12 is disposed on an inner sidewall of the cavity housing 102, the insulating base 101 is assembled at a bottom of the cavity housing 102, and the lower limiting portion 122 is disposed at a top of the insulating base 101. The chamber housing 102 includes a middle cover 103 and an upper cover 104 that snap into place with respect to each other.
As shown in fig. 9, the microswitch button 2 is provided with a spring plate pressing part 21 and a lower limit adapting part 22; the elastic sheet abutting part 21 is positioned above the micro-motion elastic sheet 3, and when the micro-motion switch button 2 is pressed, the elastic sheet abutting part 21 downwardly abuts against the micro-motion elastic sheet 3; the lower limiting adapting part 22 protrudes downwards to exceed the bottom end of the elastic piece pressing part 21. The microswitch button 2 has a main body 23 extending in the left and right directions, a pressure receiving convex portion 24 is provided in the center of the upper end of the main body 23, the upper sides of the left and right ends of the main body 23 serve as upper limit fitting portions 25, the upper limit fitting portions 25 are located below the upper limit portion 121, and the lower limit fitting portions 22 integrally extend downward from the lower sides of the left and right ends of the main body 23 to be protruded.
An avoiding hole 1021 is formed in the upper end of the cavity shell 102, an outer button 6 is arranged in the avoiding hole 1021, and the outer button 6 can be pressed to act on the pressed convex part 24 of the micro switch button 2. The pressing axial direction of the outer button 6 and the axial direction of the pressed convex part 24 of the micro switch button 2 are arranged in parallel; and, the projection area of the avoidance hole 1021 is far away from the micro switch button 2 to keep a distance from the micro switch button 2.
The switch also comprises a light touch elastic sheet 7, a third terminal 8 (the common terminal 4 and the normally open terminal 5 are respectively defined as a first terminal and a second terminal), a light touch switch pressing piece 9 and a light touch switch cavity cover 10, the micro switch and the light touch switch are switched by rotating the outer button 6, the sound and soundless switching is achieved, the outer button 6 is pressed, and the outer button 6 correspondingly drives the micro switch button 2 or the light touch switch pressing piece 9 so as to control the pressing of the micro elastic sheet 3 or the light touch elastic sheet 7. Usually, the first terminal, the second terminal, and the third terminal are fixed to the insulating base 101 by injection molding.
It should be noted that:
in this embodiment, a key switch product capable of switching between sound and sound is taken as an example for description, but the technical scheme of the limit structure of the microswitch button is not limited to the product structure shown in this embodiment, and the technical scheme can also be applied to a tact switch product without a switching function, such as a microswitch.
The design of the utility model is characterized in that the up-down limit is mainly carried out on the microswitch button 2, the upper limit has the function of ensuring that the height of the microswitch button 2 is not changed after the microswitch button 2 is reset, and the lower limit has the function of ensuring that the downward pressing overtravel of the microswitch button 2 is not too long, thereby playing the role of protecting the service life of the microswitch; meanwhile, the microswitch button 2 is internally arranged, so that the microswitch is not easily influenced by external dust, and the use precision and the control feasibility of the key switch are favorably improved.
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operation, and should not be construed as limiting the specific scope of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (7)
1. A limit structure of a microswitch button comprises a shell, the microswitch button, a microswitch elastic sheet, a common terminal and a normally open terminal; the interior of the shell is provided with an accommodating cavity, and the common terminal and the normally open terminal are respectively provided with a common closed end and a normally open closed end which are protruded to the upper side of the inner bottom of the accommodating cavity; one end of the micro-motion elastic sheet is electrically connected with the public closed end, and the other end of the micro-motion elastic sheet is acted by the micro-motion switch button and can be selectively contacted with or disconnected from the normally open closed end; the method is characterized in that:
the inner side wall of the shell is provided with an upper stroke limiting groove and a lower stroke limiting groove, and the upper end and the lower end of the upper stroke limiting groove and the lower stroke limiting groove are respectively provided with an upper limiting part and a lower limiting part; the micro switch button extends into the upper and lower stroke limiting grooves, and the micro switch button can move up and down between the upper limiting part and the lower limiting part.
2. The microswitch button limiting structure of claim 1, wherein: the upper and lower stroke limiting grooves are arranged on the left side wall and/or the right side wall of the shell; the front end and the rear end of the up-down stroke limit groove are respectively provided with a front limit part and a rear limit part, and the front side and the rear side of the microswitch button are respectively limited by the front limit part and the rear limit part.
3. The microswitch button limiting structure of claim 1, wherein: the shell comprises an insulating base and a cavity shell, the up-down stroke limiting groove is formed in the inner side wall of the cavity shell, the insulating base is assembled at the bottom of the cavity shell, and the lower limiting part is arranged at the top of the insulating base.
4. The microswitch button limiting structure of claim 3, wherein: the microswitch button is provided with an elastic sheet pressing part and a lower limit adapting part; the elastic sheet abutting part is positioned above the micro-motion elastic sheet, and when the micro-motion switch button is pressed, the elastic sheet abutting part abuts downwards against the micro-motion elastic sheet; the lower limiting adapting part is arranged downwards in a protruding mode to exceed the bottom end of the elastic sheet pressing part.
5. The microswitch button limiting structure of claim 4, wherein: the micro-gap switch button has the main part of controlling extension, the upper end of main part is provided with the pressurized convex part between two parties, the upside of the left and right ends of main part is as last spacing adaptation portion, it is located the below of last spacing portion to go up spacing adaptation portion, it is protruding from the integrative downwardly extending of the left and right sides of main part to go up spacing adaptation portion down.
6. The microswitch button limiting structure of claim 5, wherein: the upper end of chamber shell is provided with dodges the hole, dodge downthehole being provided with outer button, outer button can press and act on the pressurized convex part of micro-gap switch button.
7. The microswitch button limiting structure of claim 6, wherein: the pressing axial direction of the outer button and the axial direction of the pressed convex part of the microswitch button are arranged in parallel; and the projection area of the avoidance hole is far away from the micro switch button so as to keep a distance from the micro switch button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123021131.2U CN216698167U (en) | 2021-12-03 | 2021-12-03 | Micro-gap switch button limit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123021131.2U CN216698167U (en) | 2021-12-03 | 2021-12-03 | Micro-gap switch button limit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216698167U true CN216698167U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123021131.2U Active CN216698167U (en) | 2021-12-03 | 2021-12-03 | Micro-gap switch button limit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216698167U (en) |
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2021
- 2021-12-03 CN CN202123021131.2U patent/CN216698167U/en active Active
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