Keyboard key device
By using a combination of positioning units and scissor-switch units made of metal sheets, the problem of damage and deformation during the assembly process of existing keyboard key structures has been solved, improving the yield and production capacity of the keyboard, and enhancing the backlighting effect.
Patent Information
- Application Number
- CN202520149445.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-12-24
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The existing keyboard key structure is prone to problems such as pivot cuts, crushing, and base plate hook deformation during assembly, resulting in a high defect rate and requiring additional fixtures and workstations, which affects production capacity and yield.
The positioning unit, made of sheet metal, is integrally formed by stamping. Combined with scissor-foot units and elastic components, it simplifies the assembly process and avoids damage and deformation of the pivot during the pressing process.
It improved the yield and production capacity of keyboards, reduced assembly costs and time, solved defective products such as key loss and unevenness, and improved backlight effect and overall assembly quality.
Smart Images
Figure CN223911574U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an input device, in particular to a keyboard key device. BACKGROUND
[0002] A kind of light-emitting key structure (Taiwan disclosure No.202441541) is included in sequence from bottom to top by one driving circuit board, one spacer, one bottom plate, one switch circuit board, one elastic reset piece, one lifting mechanism and one key cap.The driving circuit board has several light-emitting pieces, the lifting mechanism is connected between the bottom plate and the key cap, so that the key cap can be moved up and down relative to the bottom plate via the lifting mechanism.The elastic reset piece corresponding to one switch is arranged between the key cap and the switch.The key cap can be pressed to press the elastic reset piece downward, so that the elastic reset piece triggers the switch.
[0003] Although the above-mentioned key structure can achieve the expected operation purpose, when the lifting mechanism is assembled on the bottom plate, the pivots of the lifting mechanism must be forced to be sleeved in the corresponding hooks of the bottom plate, and during the forced sleeving process, each pivot may be cut, broken, and the hooks of the bottom plate may be deformed, so that after assembly, there are problems such as key falling, height difference, inclination and other defective products.
[0004] Moreover, in order to reduce the above-mentioned problems, special jigs and workstations must be provided in the process, which leads to the extension of the production process and the reduction of production capacity. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a keyboard key device that can solve the problems of the prior art.
[0006] The utility model discloses a keyboard key device, contain circuit board unit, positioning unit, scissors foot unit, elastic member and key cap. The positioning unit sets up on the circuit board unit, and includes the annular frame spare of hollow ring frame shape, a pair of first pivot connection group connected with the annular frame spare and a pair of second pivot connection group connected with the annular frame spare, the annular frame spare defines the inner hole, the annular frame spare has bottom surface, the top surface opposite the bottom surface, the top surface extends the datum plane to the inner hole, every first pivot connection group has at least one first connecting plate connected with the annular frame spare and the first guide pivot portion connected with the first connecting plate and protruding from the top surface, and the first guide pivot portion has the first guide surface above the datum plane, and every second pivot connection group has at least one second connecting plate connected with the annular frame spare and the second guide pivot portion protruding from the top surface, and the second guide pivot portion has the second guide surface above the datum plane. The scissors foot unit is installed by the bottom surface of the positioning unit to the direction of the top surface, and the scissors foot unit includes the first frame spare of hollow frame shape and the second frame spare of hollow frame shape and pivot connection with the first frame spare, the first frame spare has two first lower pivot rods pivotally connected with the first guide pivot portion and two first upper pivot rods, and every first lower pivot rod abuts on the corresponding first guide surface, and the second frame spare has two second lower pivot rods pivotally connected with the second guide pivot portion and two second upper pivot rods, and every second lower pivot rod abuts on the corresponding second guide surface. The elastic member is arranged on the circuit board unit and is arranged in the scissors foot unit.
[0007] The keyboard key device has the positioning unit made of metal plate and integrally formed in a punching mode, and the first pivot connection group and the second pivot connection group are integrally connected to the annular frame spare.
[0008] The keyboard key device has the positioning unit made of metal plate and integrally formed in a punching mode, and the first pivot connection group and the second pivot connection group are integrally connected to the annular frame spare.
[0009] The keyboard key device has the positioning unit made of metal plate and integrally formed in a punching mode, and the first pivot connection group and the second pivot connection group are integrally connected to the annular frame spare.
[0010] The keyboard key device, each first pivot connection group of the positioning unit further has at least one first arc guide part arranged between the first connecting plate and the first pivot guide part, and each second pivot connection group further has at least one second arc guide part arranged between the second connecting plate and the second pivot guide part.
[0011] The keyboard key device, the first connecting plate of each first pivot connection group of the positioning unit is connected with the first pivot guide part in an L shape, the first pivot guide part is in an inverted L shape, the second connecting plate of each second pivot connection group is connected with the second pivot guide part in an L shape, and the second pivot guide part is in an inverted L shape.
[0012] The positive progress effect of the utility model lies in that the scissors foot unit is installed in the positioning unit from the bottom surface of the ring frame piece to the direction of the top surface, so that the manpower and equipment, the cost of a complete set of jigs and the like in the assembly process can be reduced, the first lower pivot rod and the second lower pivot rod of the first frame piece can be prevented from being cut and broken in the pressing process, the first pivot guide part and the second pivot guide part can be prevented from being deformed due to being pressed, and therefore the yield and production capacity can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a perspective exploded view of a first embodiment of the utility model keyboard key device;
[0014] Figure 2 is a perspective view of a positioning unit of the first embodiment;
[0015] Figure 3 is a side view of Figure 2 ;
[0016] Figure 4 is a perspective assembly view of the first embodiment;
[0017] Figure 5 is a top view of Figure 4 ;
[0018] Figure 6 is a sectional view taken along the straight line VI-VI in Figure 5 ;
[0019] Figure 7 is a perspective exploded view of a second embodiment of the utility model keyboard key device;
[0020] Figure 8 is a perspective view of a positioning unit of the second embodiment;
[0021] Figure 9 is a side view of Figure 8 ;
[0022] Figure 10 is a perspective assembly schematic view of the second embodiment;
[0023] Figure 11 is a top view schematic view of Figure 10 ;
[0024] Figure 12 is a sectional view taken along the straight line XI I-XI I in Figure 11 . DETAILED DESCRIPTION
[0025] The utility model will be described in detail below in combination with the drawings and embodiments.
[0026] Before the utility model is described in detail, it should be noted that similar components are indicated by the same numerals in the following description.
[0027] Referring to Figure 1 and Figure 6 , a first embodiment of the utility model keyboard key device contains a circuit board unit 10, a positioning unit 20, a scissors leg unit 30, an elastic member 40 and a key cap 50.
[0028] The circuit board unit 10 of this embodiment can adopt three-in-one liquid-proof back light adhesive roll, that is, thin film circuit board with back light module.
[0029] Referring to Figure 2 , Figure 3The positioning unit 20 is arranged on the circuit board unit 10 and includes a ring member 21 in a hollow ring frame shape, a first pivot set 22 connected to the ring member 21, and a second pivot set 23 connected to the ring member 21. In this embodiment, the positioning unit 20 is made of a metal plate (e.g., a stainless steel plate or an aluminum plate) and is integrally formed by stamping, and the first pivot set 22 and the second pivot set 23 are integrally connected to the ring member 21. The ring member 21 defines an inner hole 211, has a bottom surface 212, and has a top surface 213 opposite to the bottom surface 212, the top surface 213 extending toward the inner hole 211 to form a reference surface P. Each first pivot set 22 has two first connecting plates 221 connected to the ring member 21, a first guide pivot portion 222 protruding from the top surface 213, two first guide arc portions 223 arranged between the first connecting plates 221 and the first guide pivot portion 222, and a first stop portion 224 connected to the first guide pivot portion 222. The first guide pivot portion 222 has a first guide surface 225 located above the reference surface P. Each first connecting plate 221 is inclined and gradually extends away from the reference surface P while extending from the ring member 21 toward the inner hole 211. Each second pivot set 23 has two second connecting plates 231 connected to the ring member 21, a second guide pivot portion 232 protruding from the top surface 213, two second guide arc portions 233 arranged between the second connecting plates 231 and the second guide pivot portion 232, and a second stop portion 234 connected to the second guide pivot portion 232. The second guide pivot portion 232 has a second guide surface 235 located above the reference surface P. Each second connecting plate 231 is inclined and gradually extends away from the reference surface P while extending from the ring member 21 toward the inner hole 211.
[0030] The scissors leg unit 30 is mounted from the bottom surface 212 of the positioning unit 20 toward the top surface 213, and includes a first frame member 31 in a hollow frame shape and a second frame member 32 in a hollow frame shape and pivotally connected to the first frame member 31. The first frame member 31 has two first lower pivot rods 311 pivotally connected to the first guide pivot portions 222, respectively, and two first upper pivot rods 312, each first lower pivot rod 311 abutting against the corresponding first guide surface 225. The second frame member 32 has two second lower pivot rods 321 pivotally connected to the second guide pivot portions 232, respectively, and two second upper pivot rods 322, each second lower pivot rod 321 abutting against the corresponding second guide surface 235.
[0031] The elastic member 40 is arranged on the circuit board unit 10 and passes through the inside of the scissors leg unit 30.
[0032] The key cap 50 abuts against the top of the elastic member 40, and has a pair of first upper pivot portions 51 for respectively pivoting the first upper pivot rods 312, and a pair of second upper pivot portions 52 for respectively pivoting the second upper pivot rods 322.
[0033] For further understanding of the effects of the cooperation of the components of the utility model, the application of technical means, and the expected effects achieved, the following will be described, and it is believed that a more in-depth and specific understanding of the utility model can be obtained.
[0034] The cooperation of the components of the utility model Figures 4 to 6 When assembling, the scissor leg unit 30 is installed from the bottom surface 212 of the positioning unit 20 to the direction of the top surface 213, and the first lower pivot rods 311 of the first frame 31 abut against the first guide pivot portions 222, and the second lower pivot rods 321 of the second frame 32 abut against the second guide pivot portions 232. The first upper pivot rods 312 of the first frame 31 and the second upper pivot rods 322 of the second frame 32 can pass through the inner hole 211 and be located above the reference surface P.
[0035] Then, the circuit board unit 10 assembled with the elastic member 40 is abutted against the bottom of the bottom surface 212. Finally, the key cap 50 is combined with the scissor leg unit 30 and abutted against the top of the elastic member 40, and the first upper pivot portions 51 of the scissor leg unit 30 are respectively nested in the first upper pivot rods 312 and the second upper pivot rods 322, so that the overall assembly is completed.
[0036] When the overall assembly is completed and the key cap 50 is not pressed, the elasticity provided by the elastic member 40 can make the key cap 50 maintain the original state away from the positioning unit 20, and the scissor leg unit 30 can be in an unfolded state. When the key cap 50 is pressed, the scissor leg unit 30 is in a folded state, the key cap 50 approaches the positioning unit 20 (the elastic member 40 stores the released elastic force), and the elastic member 40 triggers the circuit board unit 10 to generate a signal.
[0037] Therefore, by the cooperation of the utility model as a whole, the advantages and effects can be summarized as follows:
[0038] I. The process of the keyboard does not need to hold and position the scissor leg unit 30, and the scissor leg unit 30 can be directly put into the bottom surface 212 of the positioning unit 20. The in-plant keyboard assembly process station can be shortened, and the manpower, equipment, and complete set of jigs for the holding and positioning process of the scissor leg unit 30 are directly eliminated, which significantly improves the cost advantage and production capacity of the product.
[0039] II. The existing structure is completely solved. In the hooking and positioning process of the scissor leg unit 30, the pivot of the scissor leg unit 30 causes cuts, breakage, and iron plate hook lifting and deformation. It can also prevent key drop, high and low key, and other customer complaint abnormalities, and fundamentally improve the factory shipment quality.
[0040] III. The lightened punch structure encountered in mass production is excluded, and various factors such as difficult assembly, insufficient interference amount, and shaking are excluded, which is not conducive to mass production. The punch structure is better promoted, and the competitiveness in the field of lightweight notebook keyboard is improved.
[0041] IV. Because the positioning unit 20 is completely cut in the central area (inner hole 211) of the structure, the light emitting assembly of the backlight module is not blocked by other parts except the scissor leg unit 30, and the backlight light efficiency is more uniform, more transparent, and brighter.
[0042] For example Figures 6 to 12 As shown in the second embodiment of the utility model, the utility model also comprises a circuit board unit 10, a positioning unit 20', a scissor leg unit 30, an elastic member 40 and a keycap 50. The difference from the first embodiment is that the first connecting plate 221' of each first pivot connection group 22' of the positioning unit 20' is connected with the first guide pivot part 222' to form an L shape, the first guide pivot part 222' is in an inverted L shape, and the first connecting plate 221' of the first pivot connection group 22' is connected with each other. The second connecting plate 231' of each second pivot connection group 23' is connected with the second guide pivot part 232' to form an L shape, and the second guide pivot part 232' is in an inverted L shape. Compared with the first embodiment, the first guide arc part 223, the first stop part 224, the second guide arc part 233 and the second stop part 234 in the first embodiment are omitted.
[0043] Therefore, the second embodiment of the utility model can also achieve the same purpose and effect as the first embodiment.
[0044] In summary, the keyboard key device of the utility model has simple overall structure, easy assembly operation, low defect rate, improved production capacity, and indeed achieves the purpose of the utility model.
Claims
1. A keyboard key device, comprising a circuit board unit, a positioning unit, a scissors leg unit, a resilient member and a key cap, characterized in that: the positioning unit is arranged on the circuit board unit and comprises a ring frame member in a hollow ring frame shape, a pair of first pivot groups connected to the ring frame member, and a pair of second pivot groups connected to the ring frame member, the ring frame member defines an inner hole, the ring frame member has a bottom surface, a top surface opposite to the bottom surface, and the top surface extends towards the inner hole to form a reference surface, each first pivot group has at least one first connecting plate connected to the ring frame member, and a first guide pivot portion connected to the first connecting plate and protruding from the top surface, the first guide pivot portion has a first guide surface above the reference surface, and each second pivot group has at least one second connecting plate connected to the ring frame member, and a second guide pivot portion protruding from the top surface, the second guide pivot portion has a second guide surface above the reference surface; the scissors leg unit is installed from the bottom surface of the positioning unit to the direction of the top surface, the scissors leg unit comprises a first frame member in a hollow frame shape, and a second frame member in a hollow frame shape and pivotally connected to the first frame member, the first frame member has two first lower pivot rods pivotally connected to the first guide pivot portions, and two first upper pivot rods, each first lower pivot rod abuts against the corresponding first guide surface, and the second frame member has two second lower pivot rods pivotally connected to the second guide pivot portions, and two second upper pivot rods, each second lower pivot rod abuts against the corresponding second guide surface; the resilient member is arranged on the circuit board unit and passes through the inside of the scissors leg unit; and the key cap has a pair of first upper pivot portions for pivotally connecting the first upper pivot rods, and a pair of second upper pivot portions for pivotally connecting the second upper pivot rods. The positioning unit is made of sheet metal and integrally formed by stamping, and the first pivot groups and the second pivot groups are integrally connected to the ring frame member. Each first pivot group of the positioning unit further has a first stop portion connected to the first guide pivot portion, and each second pivot group further has a second stop portion connected to the second guide pivot portion. The first connecting plate of each first pivot group of the positioning unit is in an inclined shape and gradually away from the reference surface while extending from the ring frame member towards the inner hole, and the second connecting plate of each second pivot group is in an inclined shape and gradually away from the reference surface while extending from the ring frame member towards the inner hole. Each first pivot group of the positioning unit further has at least one first guide arc portion arranged between the first connecting plate and the first guide pivot portion, and each second pivot group further has at least one second guide arc portion arranged between the second connecting plate and the second guide pivot portion.
2. The keyboard key device of claim 1, wherein: The first connecting plate and the first guide pivot portion of each first pivot group of the positioning unit are connected in an L shape, and the first guide pivot portion is in an inverted L shape, and the second connecting plate and the second guide pivot portion of each second pivot group are connected in an L shape, and the second guide pivot portion is in an inverted L shape.
3. The keyboard key device of claim 2, wherein: 4. The keyboard key device of claim 2, wherein: 5. The keyboard key device of claim 2, wherein: 6. The keyboard key device of claim 2, wherein: