CN217983169U

CN217983169U - Key structure of keyboard

Info

Publication number: CN217983169U
Application number: CN202221657856.2U
Authority: CN
Inventors: 陈九平
Original assignee: Shenzhen Youcaijia Technology Co ltd
Current assignee: Shenzhen Youcaijia Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-12-06
Anticipated expiration: 2032-06-29

Abstract

The utility model provides a keyboard button structure, include: the novel scissors comprise a keycap, scissor feet, an elastic body, a thin film circuit board and a supporting plate, wherein the thin film circuit board is arranged on the supporting plate, the elastic body is arranged on the thin film circuit board and is arranged in a hollow position of the scissor feet, the inner side of the keycap abuts against the elastic body, the scissor feet are respectively connected to the inner side of the keycap and the supporting plate, each scissor foot comprises an inner frame and an outer frame hinged to the outer periphery of the inner frame, the inner frame is provided with an upper inner frame bulge facing the keycap, the inner frame is provided with a lower inner frame facing the supporting plate, the outer frame is provided with an upper bulge facing the keycap, and the outer frame is provided with a lower bulge facing the supporting plate.

Description

Key structure of keyboard

Technical Field

The utility model relates to a keyboard especially relates to a keyboard button structure.

Background

As a common input device, a keyboard is widely used for inputting of computers and various electronic devices. With the widespread use of electronic products, keyboards have a very important position in the whole system as a means for human-computer communication. The prior art provides a variety of key structures of computer keyboards, among which the technology of using scissors-shaped principle structure to realize the internal composition structure of the keyboard keys is the most popular.

As shown in fig. 1 and 2, a conventional keyboard key structure includes a key cap 21, scissors 23, an elastic body 25, a thin film circuit board 27 and a supporting board 29. The scissor legs 23 include an inner frame 231 and an outer frame 233 hinged to the outer circumference of the inner frame 231. The two middle shafts of the inner frame 231 are matched with the middle shaft holes of the outer frame 233 to realize the hinge connection between the two middle shafts, so that the opening and closing action of the front knife leg 23 is realized, and the structure is a mature process structure. However, when the conventional scissor legs 23 are matched with the keycaps 21 and the supporting plate 29, the matching gaps of the structures are different, so that the keycaps 21 are greatly inclined, the surface flatness of the whole set of keycaps of the keyboard is influenced, and the attractiveness is influenced; and moreover, the large fit clearance of each structure can also occur, so that the keycap 21 is greatly shaken, the hand feeling is influenced, even the keyboard function is influenced, and the production yield is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a keyboard button structure, the clearance that produces when it can reduce scissors foot and key cap, backup pad cooperation avoids producing the clearance even, realizes reducing the key cap slope, and the surface smoothness of the whole set of key cap of guarantee keyboard reduces the volume of shaking when the key cap is pressed, promotes to use and feels, guarantees the keyboard quality, and does benefit to the equipment, improves production efficiency, the guarantee yield.

In order to achieve the above object, the present invention provides a keyboard key structure, including: the novel scissors comprise a keycap, scissor feet, an elastic body, a thin film circuit board and a supporting plate, wherein the thin film circuit board is arranged on the supporting plate, the elastic body is arranged on the thin film circuit board and is arranged in a hollow position of the scissor feet, the inner side of the keycap abuts against the elastic body, the scissor feet are respectively connected to the inner side of the keycap and the supporting plate, each scissor foot comprises an inner frame and an outer frame hinged to the outer periphery of the inner frame, the inner frame is provided with an upper inner frame bulge facing the keycap, the inner frame is provided with a lower inner frame facing the supporting plate, the outer frame is provided with an upper bulge facing the keycap, and the outer frame is provided with a lower bulge facing the supporting plate.

The inner surface of the inner frame facing the keycap is provided with an inner frame upper bulge, and the inner frame upper bulge abuts against the inner surface of the keycap.

The arch is cuboid, square, class square or class cuboid on the inside casing, and its quantity is the several, if 1, then sets up in the centre of the upper end surface towards the key cap internal surface, if more than two, parallel arrangement sets up the upper end surface towards the key cap internal surface between the several.

The inner frame is protruded downwards to press the film circuit board to abut against the supporting plate.

The arch is cuboid, square, class square or class cuboid under the inside casing, and its quantity is the several, if 1, then sets up in the centre towards the lower terminal surface of backup pad, if more than two, parallel arrangement sets up the lower terminal surface towards the backup pad between the several.

The inner surface of the outer frame facing the keycap is provided with an outer frame upper bulge which abuts against the inner surface of the keycap.

The arch is cuboid, square, class square or class cuboid on the frame, and its quantity is the several, if 1, then sets up in the centre of the upper end surface towards the key cap internal surface, if more than two, parallel arrangement sets up the upper end surface towards the key cap internal surface between the several.

The outer frame is protruded downwards to press the film circuit board to abut against the supporting plate.

The arch is cuboid, square, class square or class cuboid under the frame, and its quantity is the several, if 1, then sets up in the centre of the lower extreme surface towards the backup pad, if more than two, parallel arrangement sets up the lower extreme surface towards the backup pad between the several.

The two middle shafts of the inner frame are matched with the middle shaft hole of the outer frame to realize the hinging between the two middle shafts; the sum of the number of the inner frame upper protrusions (311) and the number of the outer frame upper protrusions (331) is at least 3, and the sum of the number of the inner frame lower protrusions (313) and the number of the outer frame lower protrusions (333) is at least 3.

The utility model has the advantages that: the utility model discloses keyboard button structure is through setting up arch on the inside casing at the scissors foot, arch under the inside casing, arch and frame are protruding down on the frame, reduce the clearance that produces when scissors foot and key cap, backup pad cooperation, avoid producing the clearance even, realize reducing the key cap slope, the surface smoothness of the whole set of key cap of guarantee keyboard, the volume of shaking when reducing the key cap and pressing down, it feels to promote the use, guarantees the keyboard quality, and does benefit to the equipment, improves production efficiency, the guarantee yield.

For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the present invention and accompanying drawings, which are provided for the purpose of illustration and description and are not intended to limit the present invention.

Drawings

The technical solution and other advantages of the present invention will be apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.

In the drawings, there is shown in the drawings,

FIG. 1 is a schematic cross-sectional exploded view of a conventional keyboard key structure;

FIG. 2 is a cross-sectional view of a conventional keyboard key structure;

FIG. 3 is an exploded view of the key structure of the keyboard of the present invention;

FIG. 4 is a schematic view of the sectional combination of the key structure of the keyboard of the present invention;

fig. 5 is a schematic perspective front view of the scissors of the keyboard key structure of the present invention;

fig. 6 is a schematic perspective back view of the scissors of the key structure of the keyboard of the present invention;

fig. 7 is a schematic perspective front view of the inner frame of the scissor legs of the keyboard key structure of the present invention;

fig. 8 is a schematic perspective back view of the inner frame of the scissor legs of the keyboard key structure of the present invention;

fig. 9 is a schematic perspective front view of an outer frame of the scissor legs of the keyboard key structure of the present invention;

fig. 10 is a schematic perspective back view of the outer frame of the scissor legs of the key structure of the keyboard of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

As shown in fig. 3-10, the key structure of the keyboard of the present invention includes a key cap 1, scissors 3, an elastic body 5, a thin film circuit board 7 and a supporting plate 9. The film circuit board 7 is positioned on the supporting plate 9, the elastic body 5 is arranged on the film circuit board 7 and is arranged in the hollow part of the scissor feet 3, the inner side of the keycap 1 abuts against the elastic body 5, and the scissor feet 3 are respectively connected to the inner side of the keycap 1 and the supporting plate 9. When the key cap 1 is pressed, the key cap 1 presses the elastic body 5 to press the thin film circuit board 7 to realize the conduction of the input point, and simultaneously presses the scissor feet 3. When the keycap 1 is loosened, the elastic body 5 bounces upwards to release the conduction of the input point, push the keycap to rise towards 1, and simultaneously pull the scissor feet 3.

The scissor legs 3 comprise an inner frame 31 and an outer frame 33 hinged to the outer periphery of the inner frame 31. The two middle shafts 310 of the inner frame 31 are matched with the middle shaft holes 330 of the outer frame 233 to realize the hinge connection between the two middle shafts, so that the opening and closing action of the front knife leg 23 is realized. The inner frame 31 is provided with inner frame upper protrusions 311 facing the inner surface of the keycap 1, and the inner frame upper protrusions 311 abut against the inner surface of the keycap 1. The inner frame 31 is provided with an inner frame lower projection 313 facing the support plate 9, and the inner frame lower projection 313 presses the film circuit board 7 against the support plate 9. The inner surface of the outer frame 33 facing the keycap 1 is provided with an outer frame upper protrusion 331, and the outer frame upper protrusion 331 abuts against the inner surface of the keycap 1. The outer frame 33 is provided with an outer frame lower projection 333 facing the support plate 9, and the outer frame lower projection 333 is pressed against the film circuit board 7 and is pressed against the support plate 9.

The inner frame upper protrusions 311 and the outer frame upper protrusions 331 abut against the inner surface of the keycap 1, so that no gap is formed between the keycap 1 and the scissor legs 3, and the problems that the conventional clearance difference is generated when the scissor legs are matched with the keycap, the keycap is inclined greatly, the surface flatness of the whole set of keycap of the keyboard is influenced, and the appearance is influenced are solved; also solved and had now to produce the clearance when scissors foot and key cap cooperation big, leaded to the key cap to rock big to influence and feel, influence keyboard function even, lead to the production yield to descend.

The film circuit board 7 is pressed against the support plate 9 through the inner frame lower protrusion 313 and the outer frame lower protrusion 333, so that no gap is formed between the scissor legs 3 and the support plate 9, and the problems that the keycaps are inclined greatly and the surface flatness of the whole set of keycaps of the keyboard is influenced when the scissor legs are matched with the support plate in the prior art are solved; also solved and had now to produce the clearance when scissors foot and backup pad cooperation big, leaded to the key cap to rock big to influence and feel, influence keyboard function even, lead to the production yield to descend.

The keyboard key structure of the utility model has the advantages that no gap is generated when the scissor legs 3 are matched with the keycaps 1 and the supporting plate 9, the technical problems caused by the difference of the matching gap or the large gap in the prior art can be avoided naturally, the keycaps can be prevented from inclining, the surface smoothness of the whole set of keycaps of the keyboard can be improved, and the visual attractiveness of the keyboard can be improved; the shaking amount of pressing the keycaps is avoided, so that the use handfeel of the keyboard is improved, the quality of the keyboard is guaranteed, the production yield is guaranteed, the assembly is facilitated, and the production efficiency is improved.

Because of considering scissors foot 3 and key cap 1, relative motion between the backup pad 9, as a change design, the utility model discloses arch 311 also can not lean on the internal surface at key cap 1 with the frame on the inside casing that scissors foot 3 set up, only realize reducing the clearance between key cap 1 and the scissors foot 3, and/or the utility model discloses arch 313 under the inside casing that scissors foot 3 set up, also can not support to press film circuit board 7 and lean on in backup pad 9 with frame lower arch 333, only realize reducing the clearance between scissors foot 3 and the backup pad 9, through reducing the clearance that scissors foot 3 and key cap 1, produce when backup pad 9 cooperates, also can reduce the key cap slope, guarantee the whole set of surface degree of key cap of keyboard, also can reduce the leveling when pressing and shake, promote to use and feel, guarantee the keyboard quality, and do benefit to the equipment, improve production efficiency, the guarantee yield.

The inner frame is provided with a cuboid bulge 311, the number of the cuboid bulge is 1, and the bulge is arranged in the middle of the upper end surface facing the inner surface of the keycap 1. As a variable design, the number of the key caps can be two or more, and the two or more are arranged in parallel on the upper end surface facing the inner surface of the key cap (1); the shape may be a cube, a quasi-rectangular parallelepiped, or the like.

The inner frame lower protrusions 313 are formed in rectangular parallelepipeds, 2 in number, and are provided on the lower end surface facing the support plate 9, and are arranged in parallel therebetween. As a variation, the number may also be 1 or more; the shape may be a cube, a quasi-cuboid, or the like. 1, and is disposed toward the middle of the lower end surface of the support plate 9. When a plurality of the substrates are arranged in parallel, the substrates are also arranged in parallel.

The outer frame upper protrusions 331 are cuboid, 2 in number, and are arranged on the upper end surface facing the inner surface of the keycap 1, and the two protrusions are arranged in parallel. As a variation, the number may be 1 or more; the shape may be a cube, a quasi-cuboid, or the like. 1, the key cap is arranged in the middle of the upper end surface facing the inner surface of the key cap (1). When a plurality of the substrates are arranged in parallel, the substrates are also arranged in parallel.

The outer frame lower protrusions 333 are rectangular parallelepiped in number of 2, and are provided on the lower end surface facing the support plate 9 in parallel arrangement. As a variation, the number may be 1 or more; the shape may be a cube, a quasi-rectangular parallelepiped, or the like. 1, and is disposed toward the middle of the lower end surface of the support plate 9. When a plurality of the substrates are arranged in parallel, the substrates are also arranged in parallel.

The sum of the number of the inner frame upper bulges (311) and the number of the outer frame upper bulges (331) is at least 3, preferably 3, namely 1 and 2 respectively. Three supports a face, according to the atress condition of scissors foot 3 upper end, three has already been enough, and manufacturing cost also can be saved to a small quantity. The sum of the number of the inner frame lower protrusions (313) and the number of the outer frame lower protrusions (333) is at least 3, preferably 4, namely 2, and the two side portions are beneficial to ensuring the descending stability of the keycap 1 and improving the hand feeling according to the stress condition of the lower end of the scissor foot 3.

To sum up, the utility model discloses keyboard button structure is through setting up protruding 311 on the inside casing at scissors foot 3, protruding 313 under the inside casing, protruding 331 and frame under the frame protruding 333, reduce the clearance that produces when scissors foot 3 and key cap 1, the cooperation of backup pad 9, avoid producing the clearance even, realize reducing the key cap slope, the surface smoothness of the whole set of key cap of guarantee keyboard, the volume of shaking when reducing the key cap and pressing down, promote to use and feel, guarantee the keyboard quality, and do benefit to the equipment, and the production efficiency is improved, the guarantee yield.

In the above, it is obvious to those skilled in the art that various other changes and modifications can be made according to the technical solution and the technical idea of the present invention, and all such changes and modifications should fall within the protection scope of the present invention.

Claims

1. A keyboard key structure, comprising: keycap (1), scissors foot (3), elastomer (5), film circuit board (7) and backup pad (9), film circuit board (7) are located backup pad (9), elastomer (5) are located on film circuit board (7) and are placed in scissors foot (3) cavity, keycap (1) inboard is supported and is leaned on elastomer (5), scissors foot (3) are connected respectively on keycap (1) inboard and backup pad (9), scissors foot (3) include inside casing (31) and articulate frame (33) around outside inside casing (31), inside casing (31) are equipped with inner casing upper hump (311) facing keycap (1), inside casing (31) are equipped with inner casing lower hump (313) facing backup pad (9), frame (33) are equipped with frame upper hump (331) facing keycap (1), frame (33) are equipped with frame lower hump (333) facing outer casing backup pad (9).

2. A keyboard key structure according to claim 1, characterized in that the inner frame (31) is provided with inner frame protrusions (311) facing the inner surface of the key cap (1), said inner frame protrusions (311) abutting against the inner surface of the key cap (1).

3. The keypad key structure of claim 2, wherein the inner frame upper protrusions (311) are formed in a shape of a rectangular parallelepiped, a cube-like, or a cuboid-like, and the number thereof is several, and if it is 1, the number thereof is disposed in the middle of the upper end surface facing the inner surface of the key cap (1), and if it is more than two, the number thereof is disposed in parallel between the upper end surfaces facing the inner surface of the key cap (1).

4. The keypad key structure of claim 1, wherein the inner frame lower protrusions (313) press the film circuit board (7) against the supporting plate (9).

5. The keypad key structure of claim 4, wherein the inner frame lower protrusions (313) are formed in a rectangular parallelepiped, a square, a cube-like, or a cuboid-like shape, and the number thereof is several, if 1, in the middle of the lower end surface facing the support plate (9), and if more than two, the number thereof is arranged in parallel in the lower end surface facing the support plate (9).

6. A keyboard key structure according to claim 1, wherein the inner surface of the outer frame (33) facing the key cap (1) is provided with outer frame protrusions (331), the outer frame protrusions (331) abutting against the inner surface of the key cap (1).

7. The keyboard key structure of claim 6, wherein the protrusions (331) of the outer frame are in the form of a rectangular parallelepiped, a cube-like, or a cuboid-like, and the number of the protrusions is several, and if 1, the protrusions are disposed in the middle of the upper end surface facing the inner surface of the key cap (1), and if more than two protrusions are disposed in parallel between the protrusions disposed on the upper end surface facing the inner surface of the key cap (1).

8. The keyboard key structure according to claim 1, wherein the outer frame lower projection (333) presses the film circuit board (7) against the support plate (9).

9. The keypad key structure of claim 8, wherein the outer frame lower protrusion (333) has a rectangular parallelepiped, a square, a cube-like, or a cuboid-like shape, and the number thereof is several, if 1, it is disposed toward the middle of the lower end surface of the support plate (9), and if more than two, it is disposed in parallel between the several, it is disposed toward the lower end surface of the support plate (9).

10. The keypad structure of claim 1, wherein the hinge connection is accomplished by two middle axes (310) of the inner frame (31) cooperating with a middle axis hole (330) of the outer frame (33); the sum of the number of the inner frame upper protrusions (311) and the number of the outer frame upper protrusions (331) is at least 3, and the sum of the number of the inner frame lower protrusions (313) and the number of the outer frame lower protrusions (333) is at least 3.