CN210296182U - Optical microswitch capable of generating mechanical switch hand feeling and sound - Google Patents

Abstract

The utility model relates to a can produce light micro-gap switch that mechanical type switch felt and sound, including base, cover plate and button, elastic component, the torsional spring of setting between base and cover plate, the button can reciprocate for the base, is provided with on the button with the protruding stupefied of torsional spring contact, is provided with spacing protruding stupefied on the base, the torsional spring includes the spirochaeta, with integrative first torque arm and the second torque arm of spirochaeta, first torque arm and spirochaeta are all fixed on the base, the one-way restraint of second torque arm is in spacing protruding stupefied department. The utility model discloses a torsional spring is made the button and is felt, after pressing this light micro-gap switch, the torsional spring can crescent and the change that disappears after increasing to the certain degree suddenly protruding stupefied effort, and this change of people's accessible is felt directly perceivedly and is received this operation of pressing and whether successfully trigger light micro-gap switch, strikes spacing protruding stupefied sound of feedback still of striking during the torsional spring return.

Description

Optical microswitch capable of generating mechanical switch hand feeling and sound

Technical Field

The utility model relates to a light micro-gap switch field especially relates to a can produce mechanical type switch and feel and light micro-gap switch of sound.

Background

The optical micromotion is a new type of mouse switch in recent years, and utilizes optical principle and optical coupling technique, and the light-emitting element and light-receiving element form optical channel, and the light-resisting piece can be used for actuating optical coupler in the course of cutting off and closing optical path, and changing circuit impedance value to implement on-off of circuit so as to implement electro-optic-electric conversion, and can control open circuit and channel of switch, and the photoelectric signals can be mutually isolated between input and output.

The optical micromotion does not have a mechanical contact point, so that the problems of oxidation and abrasion of the mechanical contact point cannot be caused, but the optical micromotion does not have the feedback hand feeling of the mechanical micromotion just because of the reason that the optical micromotion does not have the mechanical contact point, and people cannot judge whether the pressing operation is successful or not through the touch feeling of fingers after pressing the optical micromotion, so that the urgent need for improvement exists.

Patent No. CN2019200540760 discloses a dust-proof structure of a microswitch, wherein a dust-proof pocket platform is arranged on the upper portion of a button, but a block body in mechanical contact with a spring sheet is arranged on the lower portion of the button, and the microswitch is in traditional mechanical contact.

Patent No. CN2015200649638 discloses an empty pair of tubular axle keyboards, and its button lower part is provided with the conduction post, and the conduction post is connected with casing sliding, and the restraint button carries out the up-and-down motion orbit for the casing from this, but its button upper portion does not set up dustproof pocket platform, and the external dust easily gets into inside the product.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can produce light micro-gap switch that mechanical type switch felt and sound, through the feeling of torsional spring manufacturing button, people are after pressing this light micro-gap switch, and the torsional spring can crescent and the change that disappears after increasing to the certain degree after protruding stupefied effort, and the change of feeling of people's accessible is felt directly perceivedly and is received this and press the operation and whether successfully trigger light micro-gap switch, strikes spacing protruding stupefied feedback sound still can send during the torsional spring return.

The purpose of the utility model is realized through the following technical scheme:

a light microswitch capable of generating mechanical switch hand feeling and sound comprises a base, a cover plate connected to the upper part of the base, a button arranged between the base and the cover plate, an elastic part and a torsion spring, wherein the button can move up and down relative to the base; when the button is pressed down from the highest point of the stroke, the bottom of the convex edge exerts acting force on the second torsion arm and causes the torsion spring to generate elastic deformation.

Preferably, an inflection point exists in the process that the button is pressed down to the lowest point of the stroke from the highest point of the stroke, when the button reaches the inflection point, the acting force applied to the torsion spring by the bottom of the convex edge is suddenly changed to zero, and the torsion spring quickly rebounds and impacts the limiting convex edge to produce sound.

Preferably, the optical pair tube and the circuit board are connected to the lower part of the base.

Preferably, the second torque arm is located on a track of the up-and-down movement of the convex edge, when the button is pressed down from the highest point of the stroke, the bottom of the convex edge exerts acting force on the second torque arm and causes the torsion spring to generate elastic deformation, the bottom of the convex edge is provided with a gradual change bulge, and when the highest point of the gradual change bulge is in contact with the second torque arm, the moment when the button reaches the inflection point is obtained.

Preferably, the second torque arm is clamped in the second torque arm groove, the upper portion of the second torque arm groove is provided with a limiting protruding edge, and the second torque arm and the lower surface of the limiting protruding edge are mutually extruded.

Preferably, be provided with the cylindricality that supplies the button to reciprocate on the base and lead to the groove, encircle the annular blind groove that leads to the groove periphery at the cylindricality, be located the other second torque arm groove of annular blind groove, be located the other spirochaeta groove of second torque arm groove, be located the other first torque arm groove of spirochaeta groove, the elastic component sets up in the annular blind groove, the button is connected with the elastic component and the suspension leads to the groove in the cylindricality, be provided with the recess that is used for holding the light geminate transistor on the base, the cylindricality leads to and is provided with the correlation passageway on the groove, the light of light geminate transistor transmission passes the correlation passageway, the lower part of button is for leading on the post, it imbeds in the cylindric.

Preferably, the second torsion arm groove is communicated with the spiral body groove, the spiral body groove is communicated with the first torsion arm groove, the first torsion arm is inserted into the first torsion arm groove, and the spiral body is clamped into the spiral body groove in an elastic deformation state.

Preferably, the gradual change bulge comprises a steep slope surface and a gentle slope surface which are bounded by the highest point of the gradual change bulge, wherein the steep slope surface faces downwards, and the gentle slope surface faces upwards.

Preferably, a trigger point exists in the process that the button is pressed from the highest point of the stroke to the lowest point of the stroke, when the button reaches the trigger point, the bottom of the button blocks the light pair tubes mutually, the light pair tubes send out trigger signals to the circuit board, and the circuit board sends out trigger instructions to the outside.

Preferably, the optical pair tube is arranged on the upper surface of the circuit board or the lower surface of the circuit board, the button is provided with a dustproof pocket platform, and the base and the circuit board are detachably connected through a buckle or fixed through welding feet in a welding mode.

Preferably, the base is provided with an inclined wall used for sliding the second torque arm out of the convex edge, and the inclined wall is positioned at the upper part of the second torque arm groove.

The utility model discloses compare in prior art's beneficial effect and be:

the utility model discloses a light micro-gap switch, through set up protruding stupefied on the button, when the button reciprocates, its protruding stupefied bottom is domatic all takes place the extrusion with the torsional spring, produce the feeling of button by torsional spring and protruding stupefied effort, people are after pressing this light micro-gap switch, the power way that the finger was experienced can be along with the button pushes down the increase of distance and crescent, and because protruding stupefied on being provided with the gradual change arch, the button pushes down the in-process, the second torque arm is close to gradually-changing protruding peak along the skew wall gradually, after gradually-changing protruding peak and second torque arm contact each other, protruding stupefied and second torque arm alternate segregation, the effort between protruding stupefied and second torque arm disappears thereupon, the torsional spring disappears after increasing to the certain degree suddenly to protruding stupefied effort promptly, this kind of power way of people accessible changes, directly perceived receives and should press the operation and successfully trigger light micro-gap switch. In addition, when the torsion spring returns to the original position, the impact limiting convex edge can also send feedback sound.

The light pair tube can be selectively arranged on the upper surface of the circuit board or on the lower surface of the circuit board according to the actual requirement of the product. Be provided with dustproof pocket platform on the button, when the button reciprocated, when external dust reachd button and cover plate clearance, most can be blockked by dustproof pocket platform, can effectively improve light micro-gap switch's dustproof ability, avoids the phenomenon emergence that the dust influences light geminate transistor performance.

Drawings

Fig. 1 is an exploded view of an optical microswitch capable of generating a mechanical switch feel and sound according to an embodiment of the present invention.

Fig. 2 is a top view of an optical micro switch capable of generating mechanical switch hand feeling and sound according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is a cross-sectional view B-B of fig. 2.

Fig. 5 is a structural diagram of a button according to an embodiment of the present invention.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to specific embodiments and drawings.

Referring to fig. 1-5, an embodiment of the present invention includes:

a light microswitch capable of generating mechanical switch hand feeling and sound comprises a base 1, a cover plate 2 connected to the upper part of the base 1, a button 3 arranged between the base 1 and the cover plate 2, an elastic part 4 and a torsion spring 5, wherein the button 3 can move up and down relative to the base 1, a convex edge 6 contacted with the torsion spring 5 is arranged on the button 3, a limiting convex edge 7 is arranged on the base 1, the torsion spring 5 comprises a spiral body 8, a first torsion arm 9 and a second torsion arm 10 which are integrated with the spiral body 8, the first torsion arm 9 and the spiral body 8 are both fixed on the base 1, and the second torsion arm 10 is unidirectionally restrained at the limiting convex edge 7; when the button 3 is pressed down from the highest point of the stroke, the bottom of the convex edge 6 applies acting force to the second torsion arm 10 and causes the torsion spring 5 to generate elastic deformation, and the second torsion arm 10 rebounds quickly and impacts the limiting convex edge 7 to generate sound. An inflection point exists in the process that the button 3 is pressed down to the lowest point of the stroke from the highest point of the stroke, when the button 3 reaches the inflection point, the acting force applied to the torsion spring 5 by the bottom of the convex edge 6 is suddenly changed into zero, and the torsion spring 5 rebounds quickly and impacts the limiting convex edge 7 to produce sound.

A light pair tube 11 and a circuit board 12 connected to the lower part of the base 1. The second torque arm 10 is located on the track that the convex edge 6 moves up and down, when the button 3 is pressed down from the highest point of the stroke, the bottom of the convex edge 6 exerts acting force on the second torque arm 10 and causes the torsion spring 5 to generate elastic deformation, the bottom of the convex edge 6 is provided with a gradual change bulge 13, and when the highest point of the gradual change bulge 13 is in contact with the second torque arm 10, the moment when the button 3 reaches the inflection point is the moment. The second torque arm 10 is clamped in the second torque arm groove 16, the upper portion of the second torque arm groove 16 is provided with a limiting protruding ridge 7, and the lower surfaces of the second torque arm 10 and the limiting protruding ridge 7 are mutually extruded.

The base 1 is provided with a cylindrical through groove 14 for the button 3 to move up and down, an annular blind groove 15 surrounding the periphery of the cylindrical through groove 14, a second torsion arm groove 16 located beside the annular blind groove 15, a spiral body groove 17 located beside the second torsion arm groove 16, and a first torsion arm groove 18 located beside the spiral body groove 17, the elastic piece 4 is arranged in the annular blind groove 15, the button 3 is connected with the elastic piece 4 and suspended in the cylindrical through groove 14, the base 1 is provided with a groove 19 for accommodating the light-to-tube 11, the cylindrical through groove 14 is provided with a correlation channel 20, light emitted by the light-to-tube 11 passes through the correlation channel 20, the lower part of the button 3 is a conduction column 21, and the conduction column 21 is embedded in the cylindrical through groove 14 and is connected with the cylindrical through groove 14 in a sliding manner.

The second torsion arm groove 16 communicates with the screw groove 17, the screw groove 17 communicates with the first torsion arm groove 18, the first torsion arm 9 is inserted in the first torsion arm groove 18, and the screw 8 is caught in the screw groove 17 in a state of having elastic deformation. The gradual change bulge 13 comprises a steep slope 22 and a gentle slope 23 which are bounded by the highest point of the gradual change bulge 13, wherein the steep slope 22 faces downwards, and the gentle slope 23 faces upwards. When the button 3 reaches the trigger point, the bottom of the button 3 blocks the light pair tube 11, the light pair tube 11 sends a trigger signal to the circuit board 12, and the circuit board 12 sends a trigger instruction to the outside. The light-to-light pipe 11 is disposed on the upper surface of the circuit board 12, and in other embodiments, the light-to-light pipe may also be disposed on the lower surface of the circuit board. The button 3 is provided with a dustproof pocket platform 25, the base 1 and the circuit board 12 are detachably connected through a buckle 24, and in other embodiments, the base and the circuit board can be fixed through welding feet in a welding mode. The base 1 is provided with a slant wall 26 for sliding the second torque arm 10 out of the flange, and the slant wall 26 is located at the upper part of the second torque arm groove 16.

The specific working principle is that as the button is provided with the convex edge and the torsional spring is arranged beside the button, when the button moves up and down, the convex edge and the second torque arm are extruded, the hand feeling of the button is produced by the acting force of the second torque arm and the convex edge, after people press the optical microswitch, the force felt by fingers is gradually increased along with the increase of the pressing distance of the button, and because the convex edge is provided with the gradual change bulge, the second torque arm is gradually close to the highest point of the gradual change bulge along the inclined wall in the process of pressing the button, when the highest point of the gradual change bulge is contacted with the second torque arm, the convex edge is separated from the second torque arm, the acting force between the convex edge and the second torque arm disappears, that is, the acting force of the torsion spring on the convex edge disappears suddenly after being increased to a certain degree, and people can intuitively sense whether the pressing operation successfully triggers the optical microswitch or not through the hand feeling change. In addition, when the torsion spring returns to the original position, the impact limiting convex edge can also send feedback sound.

The light micro-gap switch of this embodiment, be different from the patent that patent number is 2019200540760, the button has downwardly extending's the post of conducting, be provided with on the base simultaneously and supply to conduct the gliding cylindricality of post and lead to the groove, it leads to the groove mutually supporting and the post of conducting and can lead to the post and lead to the groove and slide from top to bottom for the cylindricality, the cooperation structure that the post led to the groove with the cylindricality is the upper and lower slip limited movement track of button, be particularly suitable for light this kind of small in size, inner structure is complicated, and have mobilizable micro. Secondly, be different from the patent that patent number is 2015200649638, the button still has the protruding stupefied of horizontal extension, protruding stupefied through with the torsional spring cooperation, for the button provides good pressing and feels, strikes spacing protruding stupefied and still can send feedback sound when the torsional spring return.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims (10)

1. The light microswitch is characterized by comprising a base (1), a cover plate (2) connected to the upper portion of the base (1), and a button (3), an elastic piece (4) and a torsion spring (5) which are arranged between the base (1) and the cover plate (2), wherein the button (3) can move up and down relative to the base (1), a convex edge (6) in contact with the torsion spring (5) is arranged on the button (3), a limiting convex edge (7) is arranged on the base (1), the torsion spring (5) comprises a spiral body (8), a first torsion arm (9) and a second torsion arm (10) which are integrated with the spiral body (8), the first torsion arm (9) and the spiral body (8) are fixed on the base (1), and the second torsion arm (10) is unidirectionally restricted at the limiting convex edge (7); when the button (3) is pressed down from the highest point of the stroke, the bottom of the convex edge (6) applies acting force to the second torsion arm (10) and causes the torsion spring (5) to generate elastic deformation.

2. The optical microswitch capable of generating mechanical switch hand feeling and sound according to claim 1, wherein an inflection point exists in the process that the button (3) is pressed down from the highest point of travel to the lowest point of travel, when the button (3) reaches the inflection point, the acting force applied to the torsion spring (5) by the bottom of the convex rib (6) is suddenly changed into zero, and the torsion spring (5) rebounds rapidly and impacts the limiting convex rib (7) to generate sound.

3. The optical microswitch capable of generating mechanical switch hand feeling and sound according to claim 2, wherein the optical pair tube (11) and the circuit board (12) are connected to the lower part of the base (1).

4. The optical microswitch capable of generating mechanical switch hand feeling and sound according to claim 1, wherein the second torque arm (10) is located on a track of the up-and-down movement of the protrusion (6), when the button (3) is pressed down from the highest point of the stroke, the bottom of the protrusion (6) applies an acting force to the second torque arm (10) and causes the torsion spring (5) to elastically deform, the bottom of the protrusion (6) is provided with a gradual change bulge (13), and when the highest point of the gradual change bulge (13) is in contact with the second torque arm (10), the moment when the button (3) reaches the inflection point is the moment.

5. The optical microswitch capable of generating mechanical switch hand feeling and sound according to claim 1, wherein the second torque arm (10) is clamped in a second torque arm groove (16), the limiting convex rib (7) is arranged on the upper portion of the second torque arm groove (16), and the lower surfaces of the second torque arm (10) and the limiting convex rib (7) are mutually extruded.

6. The optical microswitch capable of generating mechanical switch hand feeling and sound according to claim 1, wherein the base (1) is provided with a cylindrical through groove (14) for the up and down movement of the button (3), an annular blind groove (15) surrounding the periphery of the cylindrical through groove (14), a second torsion arm groove (16) beside the annular blind groove (15), a spiral groove (17) beside the second torsion arm groove (16), and a first torsion arm groove (18) beside the spiral groove (17), the elastic member (4) is arranged in the annular blind groove (15), the button (3) is connected with the elastic member (4) and is suspended in the cylindrical through groove (14), the base (1) is provided with a groove (19) for accommodating the optical pair tube (11), the cylindrical through groove (14) is provided with a correlation channel (20), and light emitted by the optical pair tube (11) passes through the correlation channel (20), the lower part of button (3) is for leading through post (21), lead through post (21) and imbed the cylindricality and lead to groove (14) sliding connection in groove (14) and with the cylindricality, light geminate transistor (11) set up the lower surface at the upper surface of circuit board (12) or circuit board (12), be provided with dustproof pocket platform (25) on button (3), base (1) and circuit board (12) are through buckle (24) releasable connection or through leg welded fastening.

7. An optical microswitch producing mechanical switch feel and sound according to claim 1, characterized in that the second torsion arm groove (16) communicates with the spiral groove (17), the spiral groove (17) communicates with the first torsion arm groove (18), the first torsion arm (9) is inserted in the first torsion arm groove (18), and the spiral body (8) is snapped into the spiral groove (17) in an elastically deformed state.

8. A light microswitch capable of producing mechanical switch feel and sound according to claim 4, wherein the gradual change protrusion (13) comprises a steep slope (22) and a gentle slope (23) bounded by the highest point of the gradual change protrusion (13), the steep slope (22) facing downwards and the gentle slope (23) facing upwards.

9. The optical microswitch capable of generating mechanical switch hand feeling and sound according to claim 2, wherein a trigger point exists in the process that the button (3) is pressed from the highest point of travel to the lowest point of travel, when the button (3) reaches the trigger point, the bottom of the button (3) blocks the optical pair tubes (11) from each other, the optical pair tubes (11) send a trigger signal to the circuit board (12), and the circuit board (12) sends a trigger instruction to the outside.

10. Optical microswitch capable of generating mechanical switch feel and sound according to claim 1, characterized in that a slanted wall (26) for sliding the second torque arm (10) out of the ledge is arranged on the base (1), said slanted wall (26) being located at the upper part of the second torque arm slot (16).

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