CN219800728U

CN219800728U - Ultrathin key switch

Info

Publication number: CN219800728U
Application number: CN202320659659.2U
Authority: CN
Inventors: 姜裕国; 魏志明; 张国诚
Original assignee: Longsheng Electric Appliance Co ltd
Current assignee: Longsheng Electric Appliance Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-10-03
Anticipated expiration: 2033-03-29

Abstract

The utility model discloses an ultrathin key switch, which comprises a base, an electric connection assembly arranged in the base, a mounting seat arranged on the base and a key plate arranged on the base in a swinging way, wherein the key plate and the electric connection assembly are linked through a linkage piece; the middle part of the linkage piece is provided with a plurality of first rotating shafts, the mounting seat is provided with a plurality of guide holes which are matched with the first rotating shafts and are in a strip shape, and the key board drives the linkage piece to move so as to enable the first rotating shafts to slide in the corresponding guide holes in a reciprocating manner. The utility model has the advantages of small swing angle and short key stroke, so that the whole body is lighter, thinner and more attractive.

Description

Ultrathin key switch

Technical Field

The utility model relates to the field of switches, in particular to an ultrathin key switch.

Background

The key switch is generally installed on a wall or a cabinet body, one end of the key is pressed to be opened, and the other end of the key is pressed to be closed. The prior key switch generally comprises a base, an electric connection component arranged in the base, a mounting seat arranged on the base and a key plate arranged on the base in a swinging manner, wherein the key plate and the electric connection component are linked through a linkage piece. In this structure, have the pivot on the linkage, have on the mount pad with this pivot matched with circular shaft hole, when pressing the keypad, the keypad makes the linkage swing around the shaft hole central line, and the key switch only can make electric coupling assembling's circular telegram or outage need drive linkage swing specific angle, and current key switch's keypad swing angle is great, leads to key switch overall thickness big, looks thick and heavy and unsightly.

Disclosure of Invention

The utility model aims to provide an ultrathin key switch which has the advantages of small swing angle and short key range, so that the whole switch is lighter, thinner and more attractive.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the ultrathin key switch comprises a base, an electric connection assembly arranged in the base, a mounting seat arranged on the base and a key plate arranged on the base in a swinging manner, wherein the key plate and the electric connection assembly are linked through a linkage piece; the middle part of the linkage piece is provided with a plurality of first rotating shafts, the mounting seat is provided with a plurality of guide holes which are matched with the first rotating shafts and are in a strip shape, and the key board drives the linkage piece to move so as to enable the first rotating shafts to slide in the corresponding guide holes in a reciprocating manner.

Through adopting above-mentioned technical scheme, when pressing the keypad, because the special track design of guide hole, the keypad can drive the linkage piece motion and make first pivot slide on the guide hole on the mount pad, wherein, the motion of pressing the board is the combination of swing plus vertical slip for the linkage piece has reduced the arm length of its both sides on reaching the basis of same swing angle, has reduced the requirement of keypad swing angle simultaneously, makes the switching operation of this key switch have the advantage of little swing angle, short key journey, makes whole lighter and thinner and pleasing to the eye.

The present utility model is further configured such that the guide hole has a circular arc shape with both ends extending outward and bending toward a direction approaching the key sheet.

Through adopting above-mentioned technical scheme, the relative linear type guide hole of circular arc shape can make the pivot on the linkage piece shift more smoothly in the guide hole, and the wobbling orbit of linkage piece coincide more, and then guarantees that the linkage piece motion is more smooth and easy, makes the pressing operation of keypad more light, promotes user experience and feels.

The utility model is further characterized in that a plurality of second rotating shafts are arranged on the base, and a plurality of first movable grooves matched with the second rotating shafts are arranged on the key board.

Through adopting above-mentioned technical scheme, can realize the connection of keypad and base, connection structure is simple reliable, and the dismouting is very convenient.

The utility model is further characterized in that the mounting seat is also provided with a plurality of third rotating shafts, and the key board is provided with a plurality of second movable grooves matched with the third rotating shafts.

By adopting the technical scheme, as the key board moves frequently, the movable connecting structure of the key board and the mounting seat is additionally arranged, so that the stability of the key board can be further improved.

The utility model is further arranged that two groups of extrusion protrusions for respectively extruding two ends of the linkage piece are arranged on one side, close to the base, of the key board.

Through adopting above-mentioned technical scheme, the keypad drives the linkage through the protruding extrusion linkage piece of extrusion and swings, not only can promote two complex sensitivity, can reduce the cooperation friction moreover, makes the switch operation more light and smooth and easy.

The utility model is further characterized in that a convex rib for surrounding the periphery of the linkage piece is arranged on one side, close to the base, of the key board.

Through adopting above-mentioned technical scheme, protruding muscle plays the effect that shelters from the gap between keypad and the base, can further promote this key switch's pleasing to the eye degree.

The utility model is further provided that the mounting seat is detachably arranged on the base, a mounting cavity is formed between the mounting seat and the base, and the electric connection assembly is arranged in the mounting cavity; the electric connection assembly comprises a first wiring terminal used for being connected with a live wire, a second wiring terminal used for being connected with a zero line and a third wiring terminal used for being connected with a ground wire, a trigger plate is arranged in the base in a swinging mode, the trigger plate is in butt joint with the second wiring terminal, two ends of the trigger plate are respectively provided with a moving contact, the first wiring terminal and the third wiring terminal are respectively arranged on two sides of the trigger plate, fixed contacts matched with the corresponding moving contacts are respectively arranged on the first wiring terminal and the third wiring terminal, and a push rod used for pushing the trigger plate to swing is arranged at the inner end of the linkage piece.

By adopting the technical scheme, when the switch is turned on, the key board is pressed, the key board drives the linkage piece to swing, the push rod of the linkage piece pushes the trigger plate, and the trigger plate is driven to swing, so that the moving contact at one end of the trigger plate is propped against the fixed contact on the first wiring terminal, and the current conduction is realized; when the switch is closed, the key board is reversely pressed, the key board drives the linkage piece to reversely swing, the push rod of the linkage piece pushes the trigger board, and the trigger board is reversely swung, so that the movable contact at the other end of the trigger board is propped against the fixed contact on the third wiring terminal, the current is cut off, the structure is simple and reliable, and the assembly production is facilitated.

The utility model is further characterized in that the inner end of the linkage piece is provided with a guide cavity matched with the push rod, and a spring acting on the push rod is arranged in the guide cavity.

Through adopting above-mentioned technical scheme, not only can realize the axial slip of push rod, the spring provides damping force for the push rod moreover, guarantees that the push rod can support tightly with the trigger plate under each state, has promoted switch structure's reliability, has also promoted switch operation's feel simultaneously.

Drawings

FIG. 1 is a perspective view of the whole of the present utility model;

FIG. 2 is a schematic view of the mounting structure of the linkage of the present utility model;

FIG. 3 is a schematic view showing the mounting structure of the key sheet of the present utility model;

FIG. 4 is a cross-sectional view of the entirety of the present utility model;

FIG. 5 is a schematic view of the structure of the face cover of the present utility model;

fig. 6 is a schematic structural view of the mounting base of the present utility model.

In the figure: 1. a base; 2. an electrical connection assembly; 3. a mounting base; 4. a key sheet; 5. a linkage member; 6. a first rotating shaft; 7. a guide hole; 8. a second rotating shaft; 9. a first movable groove; 10. a third rotating shaft; 11. a second movable groove; 12. extruding the bulge; 13. convex ribs; 14. a mounting cavity; 15. a first connection terminal; 16. a second connection terminal; 17. a third connection terminal; 18. a trigger plate; 19. a moving contact; 20. a stationary contact; 21. a push rod; 22. a guide chamber; 23. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: the ultrathin key switch as shown in the accompanying drawings 1-6 comprises a base 1, an electric connection assembly 2 arranged in the base 1, a mounting seat 3 arranged on the base 1, and a key board 4 arranged on the base 1 in a swinging manner, wherein the key board 4 and the electric connection assembly 2 are linked through a linkage piece 5; the middle part of the linkage piece 5 is provided with a plurality of first rotating shafts 6, the mounting seat 3 is provided with a plurality of guide holes 7 which are matched with the first rotating shafts 6 and are in a strip shape, and the key board 4 drives the linkage piece 5 to move so as to enable the first rotating shafts 6 to slide in the corresponding guide holes 7 in a reciprocating manner. When the key board 4 is pressed, due to the special track design of the guide hole 7, the key board 4 can drive the linkage piece 5 to move so as to enable the first rotating shaft 6 to slide on the guide hole 7 on the mounting seat 3, wherein the movement of the pressing board is the combination of swinging and longitudinal sliding, so that the arm lengths of two sides of the linkage piece 5 are reduced on the basis of the same swinging angle, and meanwhile, the requirement of the swinging angle of the key board 4 is reduced, and the switch operation of the key switch has the advantages of small swinging angle and short key range, so that the whole is lighter, thinner and more attractive.

The shape of the guide hole 7 may be one of a straight line, a V-shape, and an arc shape, and in this embodiment, the guide hole 7 has an arc shape with both ends extending outward and bending toward a direction approaching the key sheet 4. The guide hole 7 of circular arc shape is relative linear type guide hole 7 and V font guide hole 7, can make the pivot on the linkage piece 5 shift more smoothly in guide hole 7, coincide linkage piece 5 wobbling orbit more, and then guarantee linkage piece 5 motion more smooth and easy, make the press operation of keypad 4 more light, promote user experience and feel.

As shown in fig. 3, the base 1 is provided with a plurality of second rotating shafts 8, the keypad 4 is provided with a plurality of first movable grooves 9 matched with the second rotating shafts 8, and the first movable grooves 9 are in a C shape with an opening. The key board 4 can be connected with the base 1 through the design, and the key board is simple and reliable in connection structure and quite convenient to assemble and disassemble.

As shown in fig. 3, the mounting base 3 is further provided with a plurality of third rotating shafts 10, the keypad 4 is provided with a plurality of second movable grooves 11 matched with the third rotating shafts 10, and the second movable grooves 11 are in a C shape with an opening. Because the key board 4 moves frequently, install the movable connection structure of key board 4 and mount pad 3 additional, can further promote the stability of key board 4 activity.

As shown in fig. 2, two groups of extrusion protrusions 12 for respectively extruding two ends of the linkage member 5 are integrally arranged on one side of the key board 4 close to the base 1, and the two groups of extrusion protrusions 12 are symmetrically arranged on the key board 4. The key board 4 extrudes the linkage piece 5 through the extrusion bulge 12 to drive the linkage piece 5 to swing, so that the sensitivity of the two coordination is improved, the coordination friction is reduced, and the switch operation is easier and smoother.

As shown in fig. 4 and fig. 5, a rib 13 for surrounding the periphery of the linkage member 5 is integrally provided on one side of the keypad 4 near the base 1, and the rib 13 is in a closed loop structure. The ribs 13 have the effect of shielding the gap between the key sheet 4 and the base 1, and can further improve the aesthetic degree of the key switch.

As shown in fig. 4, the mounting base 3 is detachably mounted on the base 1 (connected by a snap connection manner), a mounting cavity 14 is formed between the mounting base 3 and the base 1, and the electrical connection assembly 2 is disposed in the mounting cavity 14; the electric connection assembly 2 comprises a first wiring terminal 15 used for being connected with a live wire, a second wiring terminal 16 used for being connected with a zero line and a third wiring terminal 17 used for being connected with a ground wire, a trigger plate 18 is arranged in the base 1 in a swinging mode, specifically, two sides of the trigger plate 18 are respectively provided with a rotating bulge, the positions of the base 1 corresponding to the two sides of the trigger plate 18 are respectively provided with a limiting groove matched with the rotating bulge, the trigger plate 18 is abutted to the second wiring terminal 16, two ends of the trigger plate 18 are respectively provided with a moving contact 19, the first wiring terminal 15 and the third wiring terminal 17 are respectively arranged on two sides of the trigger plate 18, the first wiring terminal 15 and the third wiring terminal 17 are respectively provided with a fixed contact 20 matched with the corresponding moving contact 19, and the inner end of the linkage 5 is provided with a push rod 21 used for pushing the trigger plate 18 to swing. When the switch is turned on, the key board 4 is pressed, the key board 4 drives the linkage piece 5 to swing, the push rod 21 of the linkage piece 5 pushes the trigger board 18 to drive the trigger board 18 to swing, so that the movable contact 19 at one end of the trigger board 18 abuts against the fixed contact 20 on the first wiring terminal 15, and current conduction is realized; when the switch is turned off, the key board 4 is reversely pressed, the key board 4 drives the linkage piece 5 to reversely swing, the push rod 21 of the linkage piece 5 pushes the trigger plate 18, and the trigger plate 18 is reversely swung, so that the movable contact 19 at the other end of the trigger plate 18 is propped against the fixed contact 20 on the third wiring terminal 17, the current is cut off, the structure is simple and reliable, and the assembly production is facilitated.

As shown in fig. 4, the inner end of the linkage member 5 is provided with a guiding cavity 22 matched with the push rod 21, the guiding cavity 22 is in a cylindrical shape, and a spring 23 acting on the push rod 21 is arranged in the guiding cavity 22. The design not only can realize axial sliding of the push rod 21, but also the spring 23 provides damping force for the push rod 21, so that the push rod 21 can be tightly propped against the trigger plate 18 in each state, the reliability of the switch structure is improved, and meanwhile, the hand feeling of switch operation is also improved.

Claims

1. The ultrathin key switch comprises a base (1), an electric connection assembly (2) arranged in the base (1), a mounting seat (3) arranged on the base (1) and a key board (4) arranged on the base (1) in a swinging mode, wherein the key board (4) and the electric connection assembly (2) are linked through a linkage piece (5); the method is characterized in that: the middle part of the linkage piece (5) is provided with a plurality of first rotating shafts (6), the mounting seat (3) is provided with a plurality of guide holes (7) which are matched with the first rotating shafts (6) and are in a strip shape, and the key board (4) drives the linkage piece (5) to move so as to enable the first rotating shafts (6) to slide back and forth in the corresponding guide holes (7).

2. The ultra-thin key switch of claim 1, wherein: the guide hole (7) has a circular arc shape with both ends extending outwards and bending towards the direction approaching the key board (4).

3. The ultra-thin key switch of claim 1, wherein: the base (1) is provided with a plurality of second rotating shafts (8), and the key board (4) is provided with a plurality of first movable grooves (9) matched with the second rotating shafts (8).

4. The ultra-thin key switch of claim 3, wherein: the mounting seat (3) is also provided with a plurality of third rotating shafts (10), and the key board (4) is provided with a plurality of second movable grooves (11) matched with the third rotating shafts (10).

5. The ultra-thin key switch of claim 1, wherein: two groups of extrusion protrusions (12) used for respectively extruding two ends of the linkage piece (5) are arranged on one side, close to the base (1), of the key board (4).

6. The ultra-thin key switch of claim 1, wherein: one side of the key board (4) close to the base (1) is provided with a convex rib (13) for surrounding the periphery of the linkage piece (5).

7. The ultra-thin key switch of claim 1, wherein: the mounting seat (3) is detachably mounted on the base (1), a mounting cavity (14) is formed between the mounting seat (3) and the base (1), and the electric connection assembly (2) is arranged in the mounting cavity (14); the utility model provides an electric connection subassembly (2) including be used for with live wire first binding post (15) be connected, be used for with zero line second binding post (16) and be used for with ground connection's third binding post (17), swing in base (1) is provided with trigger plate (18), trigger plate (18) and second binding post (16) looks butt, trigger plate (18) both ends are equipped with a moving contact (19) respectively, first binding post (15) and third binding post (17) set up respectively in trigger plate (18) both sides to be equipped with respectively on first binding post (15) and third binding post (17) with one with corresponding moving contact (19) matched with stationary contact (20), link (5) inner be equipped with be used for promoting trigger plate (18) wobbling push rod (21).

8. The ultra-thin key switch of claim 7, wherein: the inner end of the linkage piece (5) is provided with a guide cavity (22) matched with the push rod (21), and a spring (23) acting on the push rod (21) is arranged in the guide cavity (22).