CN115036162A - Key structure of keyboard - Google Patents

Key structure of keyboard Download PDF

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Publication number
CN115036162A
CN115036162A CN202210753039.5A CN202210753039A CN115036162A CN 115036162 A CN115036162 A CN 115036162A CN 202210753039 A CN202210753039 A CN 202210753039A CN 115036162 A CN115036162 A CN 115036162A
Authority
CN
China
Prior art keywords
outer frame
protrusions
inner frame
keycap
facing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210753039.5A
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Chinese (zh)
Inventor
陈九平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Youcaijia Technology Co ltd
Original Assignee
Shenzhen Youcaijia Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Youcaijia Technology Co ltd filed Critical Shenzhen Youcaijia Technology Co ltd
Priority to CN202210753039.5A priority Critical patent/CN115036162A/en
Publication of CN115036162A publication Critical patent/CN115036162A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/002—Calculator, computer

Abstract

The invention provides a keyboard key structure, comprising: 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 present disclosure relates to keyboards, and particularly to a keyboard key 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 gained importance in the entire system as a means of 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 periphery 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.
Disclosure of Invention
The invention aims to provide a keyboard key structure which can reduce gaps generated when scissor feet are matched with a key cap and a supporting plate, even avoid the generation of gaps, realize the reduction of the inclination of the key cap, ensure the surface smoothness of the whole set of key caps of a keyboard, reduce the shaking amount of the key caps when being pressed, improve the use hand feeling, ensure the quality of the keyboard, facilitate the assembly, improve the production efficiency and ensure the yield.
In order to achieve the above object, the present invention provides a key structure of a keyboard, 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 frame is provided with inner frame upper bulges facing the inner surface of the keycap, and the inner frame upper bulges are abutted 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 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 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 provided with a support plate and a pressing film circuit board.
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 hinge joint 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 invention has the beneficial effects that: according to the keyboard key structure, the scissors pins are provided with the inner frame upper bulges, the inner frame lower bulges, the outer frame upper bulges and the outer frame lower bulges, so that gaps generated when the scissors pins are matched with the key caps and the supporting plate are reduced, even gaps are avoided, the inclination of the key caps is reduced, the surface smoothness of the whole set of key caps of the keyboard is guaranteed, the shaking amount of the key caps when being pressed is reduced, the use hand feeling is improved, the keyboard quality is guaranteed, the assembly is facilitated, the production efficiency is improved, and the yield is guaranteed.
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
Drawings
The technical solution and other advantages of the present invention will become 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 a schematic cross-sectional exploded view of a key structure of a keyboard according to the present invention;
FIG. 4 is a sectional view of the key structure of the keyboard according to the present invention;
FIG. 5 is a schematic perspective front view of scissors of the key structure of the keyboard of the present invention;
FIG. 6 is a schematic perspective back view of scissors of the key structure of the keyboard of the present invention;
FIG. 7 is a schematic perspective front view of an inner frame of scissors of the keyboard key structure of the present invention;
FIG. 8 is a schematic perspective back view of an inner frame of scissors of the key structure of the keyboard of the present invention;
FIG. 9 is a schematic perspective front view of an outer frame of scissor legs of the key structure of the keyboard of the present invention;
fig. 10 is a schematic perspective back view of an outer frame of scissors 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 board 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. The keycap 1 is pressed, the keycap 1 presses the elastic body 5 to press the 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, the conduction of the input point is released, the keycap is pushed to ascend towards the keycap 1, and meanwhile, the scissor feet 3 are pulled up.
The scissor legs 3 comprise an inner frame 31 and an outer frame 33 hinged around the outer circumference 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 inner frame lower protrusions 313 facing the support plate 9, and the inner frame lower protrusions 313 press 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 protrusion 333 facing the support plate 9, and the outer frame lower protrusion 333 presses the film circuit board 7 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 to have now produced the clearance when scissors foot and key cap cooperation big, lead to the key cap to rock greatly 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 to have now produced the clearance when scissors foot and backup pad cooperation big, lead to the key cap to rock greatly to influence and feel, influence the keyboard function even, lead to the production yield to descend.
According to the keyboard key structure, no gap is generated when the scissor legs 3 are matched with the keycaps 1 and the supporting plate 9, so that the technical problem caused by the difference of the matching gaps or large gaps in the prior art is avoided, the keycaps are prevented from inclining, the surface smoothness of the whole set of keycaps of the keyboard is improved, and the visual attractiveness of the keyboard is improved; the shaking amount of the pressed keycaps is also avoided, so that the keyboard use hand feeling is improved, the quality of the keyboard is guaranteed, the production yield is guaranteed, the assembly is facilitated, and the production efficiency is improved.
As a change design, the inner frame upper protrusions 311 and the outer frame upper protrusions 331 arranged on the scissor legs 3 of the invention can not abut against the inner surface of the keycap 1, only the gap between the keycap 1 and the scissor legs 3 is reduced, and/or the inner frame lower protrusion 313 and the outer frame lower protrusion 333 which are arranged on the scissor legs 3 of the invention can not press the film circuit board 7 to abut on the supporting plate 9, only the gap between the scissor legs 3 and the supporting plate 9 is reduced, through reducing the clearance that produces when scissors foot 3 cooperates with key cap 1, backup pad 9, also can reduce the key cap slope, the surface smoothness of the whole key cap of guarantee keyboard also can reduce the key cap and shake the momentum when pressing, promotes to use and feels, guarantees the keyboard quality, and does benefit to the equipment, improves production efficiency, the guarantee yield.
The inner frame upper protrusions 311 are cuboids, the number of the inner frame upper protrusions is 1, and the inner frame upper protrusions are 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 keycaps 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 keycap (1); the shape may be a cube, a quasi-cuboid, or the like.
The inner frame lower protrusions 313 are rectangular solids, the number of which is 2, and are arranged in parallel between the lower end surfaces facing the support plates 9. As a variation, the number may 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 cuboids, the number of the outer frame upper protrusions is 2, the outer frame upper protrusions are arranged on the upper end surface facing the inner surface of the keycap 1, and the two outer frame upper protrusions are arranged in parallel. As a variation, the number may also be 1 or more; the shape may be a cube, a quasi-rectangular parallelepiped, 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 solids, the number of which is 2, 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 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 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.
In summary, in the keyboard key structure of the present invention, the inner frame upper protrusion 311, the inner frame lower protrusion 313, the outer frame upper protrusion 331 and the outer frame lower protrusion 333 are disposed on the scissor legs 3, so as to reduce a gap generated when the scissor legs 3 are matched with the keycap 1 and the support plate 9, even avoid the generation of the gap, reduce the tilt of the keycap, ensure the surface flatness of the whole set of keycaps of the keyboard, reduce the amount of shake when the keycap is pressed, improve the use hand feeling, ensure the keyboard quality, facilitate the assembly, improve the production efficiency, and ensure the yield.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.

Claims (10)

1. A keyboard key structure, comprising: a keycap (1), scissor feet (3), an elastomer (5), a film circuit board (7) and a supporting plate (9), wherein the film circuit board (7) is positioned on the supporting plate (9), the elastomer (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) is propped against the elastomer (5), the scissor feet (3) are respectively connected with the inner side of the keycap (1) and the supporting plate (9), the scissor feet (3) comprise an inner frame (31) and an outer frame (33) hinged at the outer periphery of the inner frame (31), the inner frame (31) is provided with inner frame upper bulges (311) facing the keycap (1), the inner frame (31) is provided with an inner frame lower protrusion (313) facing the support plate (9), the outer frame (33) is provided with an outer frame upper bulge (331) facing the keycap (1), the outer frame (33) is provided with an outer frame lower projection (333) facing the support plate (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 keyboard key structure according to claim 2, wherein the inner frame upper protrusions (311) are rectangular parallelepiped, square, cube-like, or cuboid-like, and the number thereof is several, if 1, the plurality is disposed in the middle of the upper end surface facing the inner surface of the key cap (1), if more than two, the plurality is disposed in parallel arrangement 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) on the outer frame are rectangular parallelepiped, square, cube-like, or cuboid-like, and the number of the protrusions is several, if 1, the protrusions are disposed in the middle of the upper end surface facing the inner surface of the key cap (1), if more than two, the protrusions are disposed in parallel between the upper end surfaces facing the inner surface of the key cap (1).
8. The keyboard key structure of 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 key structure of claim 1, wherein the hinge joint between the two middle shafts (310) of the inner frame (31) and the middle shaft hole (330) of the outer frame (233) is realized; 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.
CN202210753039.5A 2022-06-29 2022-06-29 Key structure of keyboard Pending CN115036162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210753039.5A CN115036162A (en) 2022-06-29 2022-06-29 Key structure of keyboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210753039.5A CN115036162A (en) 2022-06-29 2022-06-29 Key structure of keyboard

Publications (1)

Publication Number Publication Date
CN115036162A true CN115036162A (en) 2022-09-09

Family

ID=83127893

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210753039.5A Pending CN115036162A (en) 2022-06-29 2022-06-29 Key structure of keyboard

Country Status (1)

Country Link
CN (1) CN115036162A (en)

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