CN216818172U - Double-trigger type sound switch - Google Patents

Abstract

The utility model discloses a double-trigger type sound switch.A key seat is arranged on a PCB (printed Circuit Board), the bottom of a switch shaft is sleeved with an elastic reset piece, the PCB is provided with a Hall element, the bottom of the switch shaft is provided with a shaft column groove, and the shaft column groove is provided with a magnet capable of triggering an electromagnetic signal of the Hall element; the switch shaft can trigger signals through contact of the metal elastic sheet, can output signals through the matching of the magnet and the Hall element, has two output modes, ensures that the switch obtains double insurance, can still continuously work on the other side when one side fails, is safe and durable, and can be suitable for different keyboard manufacturers; the holistic overall arrangement space of switch has been optimized to this switch, and structural arrangement is reasonable, and in addition, the switch still has the function of sound production and paragraph feel concurrently, satisfies user's user demand.

Description

Double-trigger type sound switch

Technical Field

The utility model relates to a key switch device, in particular to a double-trigger type audible switch.

Background

Each key of the keyboard is an independent switch, and a circuit board with the size corresponding to the position of the key area is arranged below the key area to ensure the normal operation.

The existing keyboard key is generally only provided with one contact point, or a plurality of contact points are arranged at the central position, dust is easily adhered to the existing keyboard key when the keyboard key is switched on or switched off, poor contact is caused, and therefore the existing keyboard key is unstable in use.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention aims to provide a touch-stable dual-trigger type audible switch with a sectional feel.

In order to realize the technical purpose, the scheme of the utility model is as follows: a double-trigger type sound switch is used for being matched with an electric element to output a switch signal and comprises a key seat arranged on a PCB (printed circuit board), wherein a switch shaft and an elastic reset piece for resetting the switch shaft are arranged in the key seat, the electric element is a Hall element arranged on the PCB, a shaft column groove is formed in the bottom of the switch shaft, and a magnet capable of triggering the electromagnetic signal of the Hall element is arranged on the shaft column groove;

the switch assembly comprises a metal elastic sheet and a contact end matched with the metal elastic sheet, a pushed protrusion and a movable contact which are linked are arranged on the metal elastic sheet, and a pushing protrusion used for extruding the pushed protrusion is arranged on the shaft column groove, so that the movable contact is in contact with or separated from the contact end.

Preferably, hooks are arranged on two sides of the switch shaft, hook grooves extend from the inner wall of the shaft column groove, the shaft column groove is hung on the hook of the switch shaft through the hook grooves under the action of no external force, and the pushing protrusion is of an oblique platform structure with a narrow top and a wide bottom;

when the switch shaft is pressed, the switch shaft moves downwards to push the shaft column groove, the pushing protrusion downwards extrudes the pushed protrusion to store force outwards and then rebound, the hand feeling of the section is generated, and the pushed protrusion drives the movable contact to move inwards to switch on a power supply; when the switch shaft is loosened, the switch shaft resets under the action of the elastic resetting piece.

Preferably, the switch shaft is provided with a sounding boss, the shaft groove is provided with a struck groove matched with the sounding boss, when the switch shaft is pressed, the switch shaft descends to push the shaft groove, the pushing protrusion downwards crosses the pushed protrusion, and the pushed protrusion rapidly rebounds after storing force to enable the struck groove of the shaft groove to strike the sounding boss.

Preferably, the shaft column groove is provided with a mounting hole for mounting the magnet, and the magnet is bonded in the mounting hole through glue.

Preferably, the contact end is provided with two stationary contacts matched with the movable contact, a concave table matched with the pushed protrusion is arranged between the two stationary contacts, and the pushed protrusion protrudes out of the concave table under the action of no external force.

Preferably, the metal elastic sheet and the contact end are provided with pins, and the PCB is provided with pin jacks for connecting the pins.

Preferably, the PCB board is further provided with an LED module.

Preferably, a key cover is further mounted on the key base.

The utility model has the beneficial effects that: the switch shaft can trigger signals through contact of the metal elastic sheet, can output signals through the matching of the magnet and the Hall element, has two output modes, ensures that the switch obtains double insurance, can still continuously work when one side breaks down, is safe and durable, can be suitable for different keyboard manufacturers to select and apply, and can be used for producing single-Hall working trigger type or double-insurance working trigger type switches; in addition, still have the arch on the metal bullet piece, can produce the paragraph and feel when pressing the switch, this switch has optimized the holistic overall arrangement space of switch, and structural arrangement is reasonable, and in addition, the switch still has the function of sound production and paragraph and feels concurrently, satisfies user's user demand.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of a switch shaft and a shaft groove in the present invention;

FIG. 4 is a schematic view of the construction of the spindle socket according to the present invention;

fig. 5 is a schematic structural view of a metal dome of the present invention;

fig. 6 is a schematic structural diagram of the switch assembly of the present invention.

In the figure: 1. a switch shaft; 11. hooking; 12. a sound projection; 2. a shaft groove; 21. mounting holes; 22. a magnet; 23. a struck groove; 24. hooking a groove; 25. pushing the bulge; 3. an elastic reset member; 4. a key cover; 5. a key base; 6. a PCB board; 7. a Hall switch; 8. a switch assembly; 81. metal spring, 811, moving contact; 812. a pushed protrusion; 82. a contact end; 821. a stationary contact; 822. a concave platform; 9. an LED module.

Detailed Description

In order to clearly and completely describe the technical scheme, the following embodiments are selected for illustration; the following examples are part of the present invention; other embodiments, which can be obtained without inventive step based on the present application, are within the scope of the present invention.

In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top/bottom", and the like are all based on the orientations and positional relationships shown in the drawings, and are only for the convenience of clearly describing the embodiments, but do not indicate or imply that the referred devices or elements have to have specific orientations, and therefore, the present application is not limited thereto.

As shown in fig. 1 to 6, the present embodiment provides a dual-trigger type acoustic switch, where the switch is used to cooperate with an electrical element to output a switch signal, and a manufacturer may select the switch to output the signal by the electrical element or a metal elastic sheet according to requirements, or only select the switch to output the signal by the electrical element, and use the metal elastic sheet as an elastic member for triggering the hand feeling of the section, or select the electrical element and a conventional mechanical output to output the signal at the same time.

The switch comprises a key base 5 and a switch shaft 1 positioned on the key base 5, the key base 5 is installed on a PCB, a key cover 4 is further arranged on the key base 5, an elastic reset piece 3 is sleeved at the bottom of the switch shaft 1, a Hall element 7 is arranged on the PCB, a shaft column groove 2 is arranged at the bottom of the switch shaft 1, and a magnet 22 capable of triggering an electromagnetic signal of the Hall element 7 is arranged on the shaft column groove 2; when the switch shaft 1 is pressed, the magnet 22 on the shaft column groove 2 can output different electromagnetic signals by changing the magnetic flux of the Hall element 7, and the magnetic block of the switch is in a circular structure and is preferably combined with the mounting hole 21 in an adhesion mode.

The switch further comprises a switch component 8, the switch component 8 comprises a metal elastic sheet 81 and a contact end 82 matched with the metal elastic sheet 81, a linked pushed protrusion 812 and two moving contacts 811 are arranged on the metal elastic sheet 81, the pushed protrusion 812 is positioned in the centers of the two moving contacts 811, and a pushing protrusion 25 for extruding the pushed protrusion 812 is arranged on the shaft column groove 2, so that the moving contacts 811 contact with or leave the contact end 82.

The utility model provides a switch shaft 1's both sides are equipped with couple 11, the inner wall in the jack-post groove 2 extends there is hook groove 24, under no exogenic action, jack-post groove 2 hangs couple 11 at switch shaft 1 through hook groove 24, when pressing to the bottom, switch shaft 1's sound production arch 12 contacts with the recess 23 of hitting of jack-post groove 2, in order to make the switch bring the paragraph sense, it is wide ramp structure under the narrow to push away protruding 25, be provided with on this switch's contact jaw 82 with two stationary contact 821 of moving contact 811 assorted, be provided with between two stationary contact 821 with push away protruding 812 assorted concave station 822, under no exogenic action, push away protruding 812 protrusion in concave station 822 setting, when pushing away protruding 25 and overcoming convex push away protruding 812 downstream, can provide unique paragraph sense for the user.

When the switch shaft 1 is in a non-pressed state, the movable contact 811 is far away from the contact end 82, when the switch shaft 1 is pressed, the switch shaft 1 moves downwards to push the shaft column groove 2, the pushing protrusion 25 downwards extrudes the pushed protrusion 812 to store force outwards and then rebounds to generate paragraph hand feeling, and the pushed protrusion 812 drives the movable contact 811 to move inwards to switch on a power supply; when the switch shaft 1 is loosened, the switch shaft 1 is reset under the action of the elastic reset piece 3.

In order to enable the switch to sound when being pressed, the switch shaft 1 is provided with a sounding boss, the shaft column groove 2 is provided with a hitting groove 23 matched with the sounding boss, when the switch shaft 1 is pressed, the switch shaft 1 pushes the shaft column groove 2 downwards, the pushing protrusion 25 goes over the pushing protrusion 812 downwards, and after the pushing protrusion 812 stores force, the pushing protrusion rebounds quickly to enable the hitting groove 23 of the shaft column groove 2 to hit the sounding boss.

In order to connect the metal elastic sheet 81 and the contact end 82 to a power supply, pins are arranged on the metal elastic sheet 81 and the contact end 8282, and pin jacks for connecting the pins are arranged on the PCB.

In order to enable the switch to have a light-emitting function, an LED module is further arranged on the PCB.

The switch is provided with a switch shaft 1 and a shaft column groove 2 matched with the switch shaft, the shaft column groove 2 is provided with an oblique platform structure, when the switch shaft 1 is pressed down, the oblique platform structure of the shaft column groove 2 can overcome resistance to push away a pushed protrusion 812 of a metal elastic sheet 81, so that the hand feeling of a paragraph is provided, and in addition, the metal elastic sheet 81 can be contacted with or separated from a contact end 82 by changing the contact or the separation of the metal elastic sheet 81 and the contact end 82, so that a switch power supply is in a closed circuit or open circuit state; the shaft column groove 2 is also provided with a magnet 22 which can be used for changing the magnetic flux received by the Hall element 7 on the PCB and outputting different electromagnetic signals; during production, a single Hall sensing output mode or a mode of combined work of Hall sensing and metal shrapnel can be adopted according to different requirements.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides a two formula of triggering voiced switch, voiced switch is used for cooperating electrical element output switch signal, including installing the key seat on the PCB board, be equipped with a switch axle in the key seat and supply the elasticity that the switch axle resets, its characterized in that: the electric element is a Hall element arranged on the PCB, a shaft column groove is formed in the bottom of the switch shaft, and a magnet capable of triggering an electromagnetic signal of the Hall element is arranged on the shaft column groove;

the switch assembly comprises a metal elastic sheet and a contact end matched with the metal elastic sheet, a pushed protrusion and a movable contact which are linked are arranged on the metal elastic sheet, and a pushing protrusion used for extruding the pushed protrusion is arranged on the shaft column groove, so that the movable contact is in contact with or separated from the contact end.

2. The dual trigger audible switch of claim 1, wherein: hooks are arranged on two sides of the switch shaft, hook grooves extend from the inner wall of the shaft column groove, the shaft column groove is hung on the hook of the switch shaft through the hook grooves under the action of no external force, and the pushing protrusion is of an inclined table structure with a narrow upper part and a wide lower part;

when the switch shaft is pressed, the switch shaft moves downwards to push the shaft column groove, the pushing bulge is extruded downwards to enable the pushed bulge to rebound after outwards storing force, the hand feeling of the section is generated, and the pushed bulge drives the movable contact to move inwards to switch on a power supply; when the switch shaft is loosened, the switch shaft resets under the action of the elastic resetting piece.

3. The dual trigger audible switch of claim 2, wherein: the switch is epaxial to be provided with the sound production boss, be provided with on the shaft groove with sound production boss assorted hit the recess, when pressing the switch axle, the switch axle descends and promotes the shaft groove, pushes away the arch and crosses the promotion arch downwards, and the promotion arch is kept rebounding rapidly after the power and is made the hitting recess in shaft groove and hit the sound production boss.

4. The dual trigger audible switch of claim 1, wherein: the shaft column groove is provided with a mounting hole for mounting the magnet, and the magnet is bonded in the mounting hole through glue.

5. The dual trigger audible switch of claim 1, wherein: the contact end is provided with two stationary contacts matched with the movable contact, a concave platform matched with the pushed protrusion is arranged between the two stationary contacts, and the pushed protrusion protrudes out of the concave platform without external force.

6. The dual trigger audible switch of claim 1, wherein: the metal elastic sheet and the contact end are provided with pins, and the PCB is provided with pin jacks for connecting the pins.

7. The dual trigger audible switch of claim 1, wherein: and the PCB is also provided with an LED module.

8. The dual trigger audible switch of claim 1, wherein: and the key seat is also provided with a key cover.

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