CN220232988U - Keyboard key Structure of the - Google Patents
Keyboard key Structure of the Download PDFInfo
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- CN220232988U CN220232988U CN202320903072.1U CN202320903072U CN220232988U CN 220232988 U CN220232988 U CN 220232988U CN 202320903072 U CN202320903072 U CN 202320903072U CN 220232988 U CN220232988 U CN 220232988U
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- outer frame
- shaft hole
- key cap
- inner frame
- frame
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- 239000010409 thin film Substances 0.000 claims abstract description 18
- 229920001971 elastomer Polymers 0.000 abstract description 6
- 239000000806 elastomer Substances 0.000 abstract description 6
- 239000010408 film Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Abstract
The utility model provides a keyboard key structure, comprising: the device comprises a key cap, a scissor leg, an elastomer, a thin film circuit board and a supporting plate, wherein the thin film circuit board is positioned on the supporting plate, the elastomer is arranged on the thin film circuit board and is arranged in a hollow part of the scissor leg, the inner side of the key cap is abutted against the elastomer, and the scissor leg is respectively connected with the inner side of the key cap and the supporting plate; the scissor legs comprise an inner frame and an outer frame, and the inner frame is hinged with the middle shaft hole of the outer frame through the middle shaft of the inner frame in a matched manner; the inner frame is provided with an inner frame upper bulge facing the inner surface of the key cap and an inner frame lower bulge facing the supporting plate; the inner surface of the outer frame, which faces the keycap, is provided with an outer frame upper bulge, and the outer frame lower bulge, which faces the supporting plate; the upper bulge of the inner frame and the upper bulge of the outer frame are abutted against the inner surface of the keycap, and the lower bulge of the inner frame and the lower bulge of the outer frame penetrate through the film circuit board and are abutted against the supporting plate; the shaft end of the middle shaft, which is matched with the middle shaft hole, is provided with a first guide part, the outer frame is provided with a second guide part communicated with the middle shaft hole, and the first guide part of the middle shaft enters the middle shaft hole through the second guide part.
Description
Technical Field
The present disclosure relates to keyboards, and particularly to a keyboard key structure.
Background
A keyboard is widely used as a common input device for inputting various electronic products and computers. With the widespread use of electronic products, keyboards are important as a means of man-machine communication in the whole system. The prior art provides a wide variety of computer keyboard key structures, and among them, the technology of realizing the internal composition structure of the keyboard key by utilizing the scissor-shaped principle structure is most popular.
As shown in fig. 1-2, one conventional keyboard key structure includes a key cap 21, a scissor leg 23, an elastic body 26, a thin film circuit board 27 and a support plate 29. The scissor leg 23 comprises an inner frame 231 and an outer frame 233 hinged around the outer periphery of the inner frame 231, the inner frame 231 is provided with an inner frame upper protrusion (not shown) facing the keycap 21, the inner frame 231 is provided with an inner frame lower protrusion (not shown) facing the supporting plate 29, the outer frame 233 is provided with an outer frame upper protrusion (not shown) facing the keycap 21, the outer frame 233 is provided with an outer frame lower protrusion (not shown) facing the supporting plate 29, and the two middle shafts 2311 of the inner frame 231 are matched with middle shaft holes 2331 of the outer frame 233 to realize the hinging between the two middle shafts, so that the opening and closing actions of the scissor leg 23 are realized, and the scissor leg 23 is a mature process structure. However, the center shaft 2311 of the inner frame 231 and the center shaft hole 2331 of the outer frame 233 of the existing scissors are both cylindrical, when the inner frame 231 is combined with the outer frame 233, the upper side/lower side of the center shaft hole 2331 is easily crushed, the center shaft 2311 is easily extruded and deformed, and the inner frame 231 and the outer frame 233 are matched and clamped, so that poor key hand feeling is caused; moreover, the outer frame of the outer frame 233 of the existing scissors is cylindrical, and when the keyboard is pressed strongly, the key cap sliding groove is easily crushed by the upper protrusion of the outer frame 233 of the scissors, so that the key cap 21 and the scissors 23 are matched and clamped, and the key has poor hand feeling.
Disclosure of Invention
The utility model aims to provide a keyboard key structure which can reduce extrusion generated when an inner frame of a scissor is matched with an outer frame, avoid extrusion deformation of a central shaft of the inner frame of the scissor, prevent compression injury of the upper side and the lower side of a central shaft hole of the outer frame, prevent the inner frame of the scissor from being matched and clamped with the outer frame, ensure the stable matching of the whole set of key caps of a keyboard, improve the sense of hand, ensure the quality of the keyboard, facilitate assembly, improve the production efficiency and ensure the yield.
In order to achieve the above object, the present utility model provides a keyboard key structure, comprising: the device comprises a key cap, scissors pins, an elastomer, a thin film circuit board and a supporting plate, wherein the thin film circuit board is positioned on the supporting plate, the elastomer is arranged on the thin film circuit board and is arranged in a hollow part of the scissors pins, the inner sides of the key cap are abutted against the elastomer, the scissors pins are respectively connected to the inner sides of the key cap and the supporting plate, the scissors pins comprise an inner frame and an outer frame hinged to the outer periphery of the inner frame, and the inner frame and the outer frame are matched through a central shaft of the inner frame and a central shaft hole of the outer frame to realize the hinge connection between the inner frame and the outer frame; the inner frame is provided with an inner frame upper bulge facing the inner surface of the key cap, the inner frame is provided with an inner frame lower bulge facing the supporting plate, the outer frame is provided with an outer frame upper bulge facing the inner surface of the key cap, and the outer frame is provided with an outer frame lower bulge facing the supporting plate; the upper bulge of the inner frame and the upper bulge of the outer frame are propped against the inner surface of the key cap, and the lower bulge of the inner frame and the lower bulge of the outer frame penetrate through the thin film circuit board to be propped against the supporting plate; the shaft end of the middle shaft, which is matched with the middle shaft hole, is provided with a first guide part; the outer frame is provided with a second guiding part communicated with the middle shaft hole, and the first guiding part of the middle shaft enters the middle shaft hole through the second guiding part.
The upper side of the center shaft is provided with a first guide part, and the lower side of the center shaft hole is provided with a second guide part.
The lower side of the middle shaft is provided with a first guide part, and the upper side of the middle shaft hole is provided with a second guide part.
The upper bulge of the outer frame is also provided with a third guide part matched with the keycap.
The first guide part is a chamfer arranged on the end face of the shaft end of the middle shaft matched with the middle shaft hole, the second guide part is an inclined plane matched with the middle shaft and arranged on the upper side or the lower side of the middle shaft hole of the outer frame, and the inclined plane is obtuse with Kong Miancheng of the middle shaft hole.
The third guide part is a chamfer arranged on the end face of the outer frame, which is in contact with the keycap, and protrudes from the outer frame.
The first guide part is a chamfer arranged at 1/3 of the diameter of the end face of the shaft end, which is matched with the central shaft hole, of the central shaft; the end face of the shaft end, which is matched with the center shaft and is opposite to the center shaft hole, of the chamfer is 120-150 degrees.
The chamfer and the shaft end surface of the middle shaft, which is matched with the middle shaft hole, are 135 degrees.
The third guide part is a chamfer arranged at 1/3 of the diameter of the end surface of the outer frame, which is in contact with the key cap, of the bulge; the chamfer is 120-150 degrees relative to the end face of the protrusion on the outer frame, which is contacted with the keycap.
The chamfer is 135 degrees relative to the end face of the protrusion on the outer frame, which is contacted with the keycap.
The utility model has the beneficial effects that: according to the keyboard key structure, the first guide part is arranged at the shaft end of the inner frame of the scissor leg, which is matched with the central shaft hole, and the second guide part communicated with the central shaft hole is arranged at the outer frame, so that extrusion generated when the inner frame of the scissor leg is matched with the outer frame can be prevented, extrusion deformation of the inner frame central shaft of the scissor leg and compression injury of the upper side and the lower side of the central shaft hole of the outer frame are avoided, the inner frame of the scissor leg is prevented from being matched and clamped with the outer frame, the stability of the matching of the whole set of key caps of the keyboard is ensured, the quality of the keyboard is improved, the assembly is facilitated, the production efficiency is improved, and the yield is ensured. Furthermore, the third guide part matched with the key cap can be arranged on the outer frame in a protruding mode, extrusion can be prevented when the outer frame of the scissor leg is matched with the key cap through the third guide part, the situation that the sliding groove matched with the protrusion on the outer frame is crushed is avoided, the outer frame of the scissor leg is prevented from being matched and clamped with the key cap, the matching stability of the whole set of key cap of the keyboard is guaranteed, the using sense is improved, the keyboard quality is guaranteed, the assembly is facilitated, the production efficiency is improved, and the yield is guaranteed.
For a further understanding of the nature and technical aspects of the present utility model, reference should be made to the following detailed description of the utility model and to the accompanying drawings, which are provided for purposes of reference only and are not intended to limit the utility model.
Drawings
The technical solution and other advantageous effects of the present utility model will be made apparent by the following detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings.
In the drawings of which there are shown,
FIG. 1 is a schematic sectional view of a conventional keyboard key structure;
FIG. 2 is a schematic plan view of an inner frame of a scissors of a key structure of a conventional keyboard;
FIG. 3 is a schematic sectional view of a keyboard key structure according to the present utility model;
FIG. 4 is a schematic plan view of an inner frame of a scissors assembly of the keyboard key structure of the present utility model;
fig. 5-6 are exploded views of different angles of the keyboard key structure of the present utility model.
Detailed Description
In order to further explain the technical means adopted by the present utility model and the effects thereof, the following detailed description is given with reference to the preferred embodiments of the present utility model and the accompanying drawings.
As shown in fig. 3-6, the key structure of the keyboard of the present utility model comprises a key cap 1, a scissor leg 3, an elastic body 6, a thin film circuit board 7 and a supporting board 9. The thin film circuit board 7 is positioned on the supporting plate 9, the elastic body 6 is arranged on the thin film circuit board 7 and is arranged at the hollow part of the scissors foot 3, the inner side of the key cap 1 is abutted against the elastic body 6, and the scissors foot 3 is respectively connected with the inner side of the key cap 1 and the supporting plate 9. Pressing the key cap 1, the key cap 1 presses the elastic body 6 to press the thin film circuit board 7 to realize the conduction of the input point, and simultaneously presses the scissor legs 3. The key cap 1 is loosened, the elastic body 6 is sprung upwards, the conduction of the input point is released, the key cap 1 is pushed to ascend, and the scissor legs 3 are pulled up.
The scissors 3 comprises an inner frame 31 and an outer frame 33 hinged around the outer periphery of the inner frame 31. The two middle shafts 311 of the inner frame 31 are matched with the middle shaft holes 331 of the outer frame 33 to realize the hinging between the two middle shafts, thereby realizing the opening and closing actions of the scissor legs. The inner surface of the inner frame 31 facing the key cap 1 is provided with an inner frame upper protrusion 312, and the inner frame upper protrusion 312 abuts against the inner surface of the key cap 1. The inner frame 31 is provided with an inner frame lower protrusion 313 facing the support plate 9, and the inner frame lower protrusion 313 abuts against the support plate 9 through the thin film circuit board 7. The inner surface of the outer frame 33 facing the key cap 1 is provided with an outer frame upper protrusion 332, and the outer frame upper protrusion 332 abuts against the inner surface of the key cap 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 passes through the thin film circuit board 7 to be abutted against the support plate 9; the middle shaft 311 is provided with a first guide part 3111 at the shaft end matched with the middle shaft hole 331; the outer frame 33 is provided with a second guide portion 335 communicating with the central shaft hole 331, and the central shaft first guide portion 3111 enters the central shaft hole 331 through the second guide portion 335.
Through setting up first guide 3111 at the axis 311 of scissors foot inside casing 31 and axis hole 331 complex axle head, set up the second guide 335 with axis hole 331 intercommunication at frame 33, can prevent to produce the extrusion when the inside casing 31 of scissors foot 3 cooperates with frame 33, avoid scissors foot 3 inside casing axis 311 to take place extrusion deformation, the pressure wound takes place for the downside in the axis hole 331 in the frame, the cooperation chucking of inside casing 31 and frame 33 of prevention scissors foot 3, the cooperation of the whole key cap of guarantee keyboard is stable, promote the use feel, guarantee keyboard quality, and do benefit to the equipment, improve production efficiency, the guarantee yield.
The bottom bracket 311 is provided with a first guide part 3111 at the lower side of the shaft end matched with the bottom bracket hole 331; a second guiding part 335 matched with the middle shaft 311 is arranged on the upper side of the middle shaft hole 331; as a variant, a first guide 3111 may be provided on the upper side of the shaft end where the bottom bracket 311 is fitted to the bottom bracket hole 331, and a second guide 335 may be provided on the lower side of the bottom bracket hole 331.
The outer frame upper protrusion 332 is further provided with a third guiding portion 3321 that is matched with the key cap 1.
Through be equipped with key cap 1 complex third guiding part 3321 on the frame protruding 332, can prevent to produce the extrusion when the frame 33 of scissors foot and key cap 1 cooperation, avoid key cap 1 and the protruding 332 complex spout of frame to be pressed to hurt, the frame 33 of prevention scissors foot and the cooperation chucking of key cap 1, the cooperation of the whole key cap of guarantee keyboard is stable, promotes the use sense of hand, guarantees keyboard quality, and does benefit to the equipment, improves production efficiency, guarantee yield.
The first guide portion 3111 is a chamfer disposed on an end surface of the shaft end of the middle shaft 311, which is matched with the middle shaft hole 331, and the second guide portion 335 is an inclined surface disposed on the upper side of the middle shaft hole 331 of the outer frame 33, which is matched with the middle shaft 311, and the inclined surface is obtuse with Kong Miancheng of the middle shaft hole 331.
The third guiding portion 3321 is a chamfer provided on the end surface of the protrusion 332 on the outer frame contacting the key cap 1.
The first guide part 3111 is a chamfer arranged at 1/3 of the diameter of the end face of the shaft end where the middle shaft 311 is matched with the middle shaft hole 331; the chamfer is 135 degrees with the shaft end of the middle shaft 311 corresponding to the middle shaft hole 331. As a variant, the angle formed by the first guide 3111 and the axial end face of the central shaft 311, which is engaged with the central shaft hole 331, may be 120-150 degrees, preferably 135 degrees.
The third guiding portion 3321 is a chamfer provided at 1/3 of the diameter of the end surface of the protrusion 332 on the outer frame contacting the key cap 1. The chamfer is 135 degrees relative to the end surface of the protrusion 332 on the outer frame, which is in contact with the key cap 1. As a variant, the angle formed by the chamfer may be 120-150 degrees, preferably 135 degrees, with respect to the end face of the protrusion 332 on the outer frame that contacts the key cap 1.
The first guide portion 3111, the second guide portion 335 and the third guide portion 3321 are all very simple in structure and convenient to process.
The inner frame upper protrusions 312 are cylindrical, the number of which is 2, and are arranged on the upper end surface facing the inner surface of the key cap 1, and the two protrusions are arranged in parallel. As a variant, the number may also be 1 or more; the shape may be a cuboid, a cube, or a cylinder-like, cube-like, cuboid-like, or the like. When the number is 1, it is provided in the middle of the upper end surface facing the inner surface of the key cap 1. When the number is plural, the two are arranged in parallel.
The inner frame lower protrusions 313 are cylindrical in number of 2 and are disposed toward the lower end surface of the support plate 9, and are arranged in parallel therebetween. As a variant, the number may also be 1 or more; the shape may be a cuboid, a cube, or a cylinder-like, cube-like, cuboid-like, or the like. In the middle of the lower end surface toward the support plate 9, 1 in number. When the number is plural, the two are arranged in parallel.
The outer frame upper protrusions 332 are cylindrical, the number of which is 2, and are disposed on the upper end surface facing the inner surface of the key cap 1, and the two protrusions are arranged in parallel. As a variant, the number may also be 1 or more; the shape may be a cuboid, a cube, or a cylinder-like, cube-like, cuboid-like, or the like. When the number is 1, it is provided in the middle of the upper end surface facing the inner surface of the key cap 1. When the number is plural, the two are arranged in parallel.
The outer frame lower protrusions 333 are cylindrical in number of 2 and disposed toward the lower end surface of the support plate 9, and are arranged in parallel therebetween. As a variant, the number may also be 1 or more; the shape may be a cuboid, a cube, or a cylinder-like, cube-like, cuboid-like, or the like. In the middle of the lower end surface toward the support plate 9, 1 in number. When the number is plural, the two are arranged in parallel.
As a variant, the sum of the number of projections 312 on the inner frame and projections 332 on the outer frame is at least 3, preferably 3, i.e. 1 and 2, respectively. Three supports one surface, three supports can be used according to the stress condition of the upper ends of the scissor legs 3, and the production cost can be saved due to the small quantity. The sum of the number of the inner frame lower protrusions 313 and the number of the outer frame lower protrusions 313 is at least 3, preferably 4, namely 2, and the two protrusions are at one side according to the stress condition of the lower ends of the scissor legs 3, so that the descending stability of the key cap 1 is guaranteed, and the hand feeling is improved.
In summary, according to the keyboard key structure disclosed by the utility model, the first guide part is arranged at the shaft end of the inner frame of the scissors pin, which is matched with the central shaft hole, and the second guide part is arranged at the outer frame, which is communicated with the central shaft hole, so that the inner frame of the scissors pin is prevented from being extruded when being matched with the outer frame, the inner frame of the scissors pin is prevented from being extruded and deformed, the upper side and the lower side of the central shaft hole of the outer frame are prevented from being crushed, the inner frame of the scissors pin is prevented from being matched and clamped with the outer frame, the stable matching of the whole set of key caps of the keyboard is ensured, the using feeling is improved, the keyboard quality is ensured, the assembly is facilitated, the production efficiency is improved, and the yield is ensured. Furthermore, the third guide part matched with the key cap can be arranged on the outer frame in a protruding mode, extrusion can be prevented when the outer frame of the scissor leg is matched with the key cap through the third guide part, the situation that the sliding groove matched with the protrusion on the outer frame is crushed is avoided, the outer frame of the scissor leg is prevented from being matched and clamped with the key cap, the matching stability of the whole set of key cap of the keyboard is guaranteed, the using sense is improved, the keyboard quality is guaranteed, the assembly is facilitated, the production efficiency is improved, and the yield is guaranteed. In addition, the guide part of the keyboard key structure is simple in structure and easy to process.
In the above, it should be apparent to those skilled in the art that various other modifications and variations can be made in accordance with the technical solution and the technical idea of the present utility model, and all such modifications and variations are intended to fall within the scope of the claims of the present utility model.
Claims (10)
1. A keyboard key structure comprising: the novel scissors comprise a key cap (1), scissors legs (3), an elastic body (6), a thin film circuit board (7) and a supporting plate (9), wherein the thin film circuit board (7) is positioned on the supporting plate (9), the elastic body (6) is arranged on the thin film circuit board (7) and is arranged at a hollow part of the scissors legs (3), the inner sides of the key cap (1) are abutted against the elastic body (6), the scissors legs (3) are respectively connected to the inner sides of the key cap (1) and the supporting plate (9), the scissors legs (3) comprise an inner frame (31) and an outer frame (33) hinged to the outer periphery of the inner frame (31), and the inner frame (31) and the outer frame (33) are matched with a central shaft hole (331) of the outer frame (33) through a central shaft (311) of the inner frame (31) to realize hinging between the inner frame and the outer frame (33); an inner frame upper protrusion (312) is arranged on the inner surface of the inner frame (31) facing the key cap (1), an inner frame lower protrusion (313) is arranged on the inner frame (31) facing the supporting plate (9), an outer frame upper protrusion (332) is arranged on the inner surface of the outer frame (33) facing the key cap (1), and an outer frame lower protrusion (333) is arranged on the outer frame (33) facing the supporting plate (9); the inner frame upper protrusion (312) and the outer frame upper protrusion (332) are abutted against the inner surface of the key cap (1), and the inner frame lower protrusion (313) and the outer frame lower protrusion (333) penetrate through the thin film circuit board (7) and are abutted against the supporting board (9);
the device is characterized in that a first guide part (3111) is arranged at the shaft end of the middle shaft (311) matched with the middle shaft hole (331); the outer frame (33) is provided with a second guide part (335) communicated with the middle shaft hole (331), and the first guide part (3111) of the middle shaft (311) enters the middle shaft hole (331) through the second guide part (335).
2. The keyboard key structure according to claim 1, wherein a first guide portion (3111) is provided on an upper side of the center shaft (311), and a second guide portion (335) is provided on a lower side of the center shaft hole (331).
3. The keyboard key structure according to claim 1, wherein a first guide portion (3111) is provided at a lower side of the center shaft (311), and a second guide portion (335) is provided at an upper side of the center shaft hole (331).
4. The keyboard key structure according to claim 1, wherein the outer frame upper protrusion (332) is provided with a third guide portion (3321) which is matched with the key cap (1).
5. The keyboard key structure according to claim 1, wherein the first guide part (3111) is a chamfer provided on an end face of the shaft end where the central shaft (311) is engaged with the central shaft hole (331), and the second guide part (335) is an inclined surface provided on an upper side or a lower side of the central shaft hole (331) of the outer frame (33) where the inclined surface is engaged with the central shaft (311), and the inclined surface is obtuse with Kong Miancheng of the central shaft hole (331).
6. The keyboard key structure according to claim 4, wherein the third guiding portion (3321) is a chamfer provided on an end surface of the protrusion (332) of the outer frame contacting the key cap (1).
7. The keyboard key structure according to claim 5, wherein said first guide portion (3111) is a chamfer provided at 1/3 of a diameter of an end face of a shaft end where said center shaft (311) is fitted to said center shaft hole (331); the end surface of the shaft end, which is matched with the center shaft (311) relative to the center shaft hole (331), of the chamfer is 120-150 degrees.
8. The keyboard key structure of claim 7, wherein said chamfer is 135 degrees from the axial end of said central shaft (311) which is engaged with said central shaft hole (331).
9. The keyboard key structure according to claim 6, wherein the third guide portion (3321) is a chamfer provided at 1/3 of the diameter of the end face of the outer frame where the protrusion (332) contacts the key cap (1); the chamfer is 120-150 degrees relative to the end face of the protrusion (332) on the outer frame, which is contacted with the keycap (1).
10. The keyboard key structure of claim 9, wherein the chamfer is 135 degrees with respect to an end surface of the protrusion (332) of the outer frame, which is in contact with the key cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320903072.1U CN220232988U (en) | 2023-04-10 | 2023-04-10 | Keyboard key Structure of the |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320903072.1U CN220232988U (en) | 2023-04-10 | 2023-04-10 | Keyboard key Structure of the |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220232988U true CN220232988U (en) | 2023-12-22 |
Family
ID=89171485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320903072.1U Active CN220232988U (en) | 2023-04-10 | 2023-04-10 | Keyboard key Structure of the |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220232988U (en) |
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2023
- 2023-04-10 CN CN202320903072.1U patent/CN220232988U/en active Active
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