Wing type balance key assembly and keyboard with height-adjustable key cap

Abstract

The utility model discloses a wing type balance key assembly, which comprises a movable part which is arranged at the position of a bottom plate and can move relative to the bottom plate, and the movable part is provided with an abutting part with a high position and a low position. The wing frame extends towards the bottom plate to form an abutting end which abuts against the abutting portion of the movable piece. According to the key assembly in the scheme, the movable part capable of moving is ingeniously designed for the structure of the wing type balance key, limiting adjustment of the reset radian of the wing frame is changed through the high position and the low position of the movable part, and then adjustment of the height of the key cap of the key relative to the bottom plate in the reset state is achieved. The design allows a user to easily adjust the reset height of the keycap according to personal preferences or actual demands, and the keycap is ingenious in structural conception, stable in structure, controllable in cost, suitable for industrial mass production, high in practicability and huge in market prospect.

Description

Technical Field

[0001] The utility model relates to the field of keys, in particular to a wing-type balanced key assembly and a keyboard with adjustable key cap height. Background Art

[0002] With the advancement of technology and the diversification of consumer demand, ultra-thin keys are being developed and applied more and more widely in the market. The design of ultra-thin keys aims to enhance the overall aesthetics of the product by reducing the physical thickness of the keys while maintaining or optimizing their functionality. The following are a series of innovative patents for ultra-thin key technology.

[0003] Patent number CN202220891002.4, a utility model patent named "An ultra-thin balanced key", proposes "an ultra-thin balanced key, used to trigger an electrical component set on a PCB board to generate a signal, including a keycap, a base plate and a linkage component arranged between the keycap and the base plate, the linkage component includes a linkage wing and a trigger wing pivotally connected to each other, both sides of the linkage wing and the trigger wing extend with a pivot arm, and the end of the linkage wing pivot arm is pivotally connected to the end of the trigger wing pivot arm."

[0004] Patent No. 202122203592.5, the utility model patent named "A micro-balanced ultra-thin photoelectric switch structure" proposes "a micro-balanced ultra-thin photoelectric switch structure, including a keycap and a light-emitting element and a photosensitive element arranged on a PCB board, and a grating structure for causing the photosensitive element to receive a variable amount of light from the light-emitting element, the grating structure is a grating wing coupled with a linkage wing, the linkage wing and the grating wing are coupled to move up and down synchronously; the grating wing and the linkage wing are coupled through a connecting seat. Two coupling arms are coupled to each other, and the end of one coupling arm is configured as a concave coupling port, and the end of the other coupling arm is configured as a coupling block that can be inserted into the coupling port."

[0005] Patent No. 202222417488.0, a utility patent named "An ultra-thin silicone key", proposes "an ultra-thin silicone key, used to trigger an electronic component arranged on a PCB board to generate a signal, including a keycap, a base plate and a linkage component arranged between the keycap and the base plate, the linkage component includes a left wing and a right wing pivotally connected to each other, both ends of the left wing and the right wing extend with a pivot arm and are pivotally connected to each other through the pivot arm, each pivot arm is provided with a limiting structure, and the limiting structure is limited by a bracket component on the base plate."

[0006] The above improved ultra-thin key patent mainly adopts a wing frame composed of a first wing and a second wing that are interconnected in a V-shape as a supporting structure. The ultra-thin key of this V-shaped wing frame cannot adjust the height of the key after it is reset. With the continuous pursuit of consumers for product appearance design and user experience, the fixed key height design has gradually failed to meet the diverse needs of users. When using the keyboard for a long time for work, study or entertainment, the fixed height keys may cause inconvenience to users with different hand shapes and different usage habits, and even cause hand fatigue and discomfort. Therefore, it is particularly important to develop a key and keyboard that can adjust the height of the key. Utility Model Content

[0007] In view of the above problems, the utility model aims to provide a wing-type balanced key assembly and a keyboard with adjustable key cap height.

[0008] To achieve the technical purpose, the scheme of the utility model is: a wing-type balanced key assembly, used for triggering an electrical component arranged on a PCB board to generate a signal, comprising a keycap, a base plate, and a wing frame assembled between the base plate and the keycap, the wing frame being composed of a first wing and a second wing linked to each other in a V shape, and a bracket component for mounting and limiting the wing frame is provided on the base plate; a reset elastic member is also provided between the first wing and the second wing, the key assembly also includes a movable member arranged at the base plate and movable relative to the base plate, and a high and low position abutting portion is constructed on the movable member; the wing frame extends toward the base plate with an abutting end abutting against the abutting portion of the movable member; when the movable member is moved so that the high position of the abutting portion abuts against the abutting end, the arc of the wing frame being reset under the action of the reset elastic member is limited and becomes smaller, thereby reducing the reset height of the keycap; when the movable member is moved so that the low position of the abutting portion abuts against the abutting end, the arc of the wing frame being reset under the action of the reset elastic member becomes larger, thereby increasing the reset height of the keycap.

[0009] Preferably, linkage arms are extended from both sides of the first wing and the second wing of the wing frame to pivot or hinge the two wings, and the abutting end is the end of the linkage arm.

[0010] Preferably, linkage arms are extended on both sides of the first wing and the second wing of the wing frame to pivot or hinge the two wings, and at least one of the first wing and the second wing is also provided with an abutment arm extending toward the bottom plate, and the end of the abutment arm is the abutment end.

[0011] Preferably, the abutment arm is parallel to the linkage arm adjacent thereto.

[0012] Preferably, the abutment portion on the movable member is configured as a sloped protrusion.

[0013] Preferably, the movable member is in the shape of an elongated strip, a slide groove is formed on the bottom plate, and the movable member is arranged in the slide groove.

[0014] Preferably, a limiting protrusion is further provided on the slide groove, and a limiting long slot hole is provided on the movable part corresponding to the limiting protrusion.

[0015] Preferably, the PCB board is arranged on the bottom plate, the movable part is located between the bottom plate and the PCB board, and a through hole is opened on the PCB board at a position corresponding to the abutment portion of the movable part.

[0016] The utility model also provides a keyboard with adjustable key cap height, which adopts any one of the above-mentioned wing-type balanced key components.

[0017] The beneficial effects of the utility model are as follows: the key assembly of the present scheme cleverly designs a movable active part for the structure of the wing-type balance key, and changes the limit adjustment of the wing frame reset arc by the high and low positions constructed on the movable part, thereby realizing the adjustment of the keycap height relative to the base plate when the key is in the reset state; this design allows the user to easily adjust the reset height of the keycap according to personal preferences or actual needs. Its structural conception is ingenious, the structure is stable and the cost is controllable, it is suitable for industrial mass production, has strong practicality, and has huge market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded view of a specific embodiment 1 of the utility model;

[0019] Figure 2 It is a side view of a specific embodiment 1 of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the wing frame in the first specific embodiment of the utility model;

[0021] Figure 4 It is one of the bottom schematic diagrams of the utility model;

[0022] Figure 5 This is the second bottom schematic diagram of the utility model;

[0023] Figure 6 It is a partial enlarged view of the key rise in the utility model;

[0024] Figure 7 It is a partial enlarged view of the button in the utility model being lowered;

[0025] Figure 8 This is a schematic diagram of the structure of the second specific embodiment of the utility model;

[0026] Fig. 9 It is a structural schematic diagram of the wing frame in the specific embodiment 2 of the present utility model;

[0027] Fig.10 This is a schematic diagram of the structure of the third specific embodiment of the present utility model;

[0028] Fig.11 This is a schematic diagram of the structure of the wing frame in the third specific embodiment of the present utility model;

[0029] Fig.12 This is a schematic diagram of the structure of the fourth specific embodiment of the present utility model;

[0030] Fig.13 It is a structural schematic diagram of the four wing frames specifically implemented in the utility model;

[0031] Fig.14 It is a cross-sectional view of a fifth specific embodiment of the present utility model;

[0032] Fig.15 It is a schematic diagram of the working principle of the utility model.

[0033] In the figure: 1. keycap; 2. bottom plate; 201. slide groove; 202. limiting protrusion; 3. wing frame; 301. first wing; 302. second wing; 303. abutment end; 304. linkage arm; 305. abutment arm; 4. bracket component; 5. reset elastic member; 6. movable member; 601. abutment part; 602. limiting long slot hole; 7. PCB board; 701. through hole. DETAILED DESCRIPTION

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In order to clearly and completely describe the technical solution, the following embodiments are selected for illustration; the following embodiments are part of the embodiments of the utility model; based on this application, other embodiments obtained without creative work are all within the scope of protection of the utility model.

[0035] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of clearly describing the present embodiment, rather than indicating or implying that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present application. At the same time, "first" and "second" in the embodiments are only used for distinguishing description purposes, and do not represent or imply relative importance.

[0036] like Figure 1-14As shown, the specific embodiment of the utility model is a wing-type balanced key assembly, which is used to trigger an electrical component set on a PCB board 7 to generate a signal, including a key cap 1, a base plate 2, and a wing frame 3 assembled between the base plate 2 and the key cap 1, wherein the wing frame 3 is composed of a first wing 301 and a second wing 302 that are linked to each other in a V shape, and a bracket member 4 for mounting and limiting the wing frame 3 is provided on the base plate 2; when the key cap 1 is pressed to the bottom, the opening angle between the linkage arm 304 of the first wing 301 and the second wing 302 gradually increases, and the linkage arm 304 The maximum angle between them can be 180 degrees; each linkage arm 304 has a rocking fulcrum formed near the end thereof toward the side of the bottom plate 2, and when the keycap 1 is pressed, the first wing 301 and the second wing 302 descend around the rocking fulcrum of the linkage arm 304, and the end of the linkage arm 304 rises but is limited on the bracket member 4 due to the limiting structure, and a reset elastic member 5 is also arranged between the first wing 301 and the second wing 302, and when the keycap 1 is released, the reset elastic member 5 contracts to pull the first wing 301 and the second wing 302 upward. In a specific preferred embodiment, the reset elastic member can be a structural member such as a tension spring.

[0037] The key assembly also includes a movable part 6 arranged at the bottom plate 2 and movable relative to the bottom plate 2, and a high and low position abutment portion 601 is constructed on the movable part 6; the wing frame 3 extends toward the bottom plate 2 with an abutment end 303 abutting against the abutment portion 601 of the movable part 6; the cooperation between the abutment end 303 and the abutment portion 601 is the key to achieving height adjustment of the key assembly. By adjusting the position of the movable part 6 and changing the contact state between the abutment portion 601 and the abutment end 303, the reset arc of the wing frame 3 can be controlled.

[0038] The abutment portion 601 is a structure on the movable member 6, having two position structures of high and low positions. In the preferred embodiment, it is a slope or arc-shaped protrusion, which changes the motion trajectory of the wing frame 3 under the action of the reset elastic member 5 by contacting the abutment end 303 of the wing frame 3. The height of the abutment portion 601 determines the size of the reset arc of the wing frame 3, thereby affecting the reset height of the keycap 1. Fig.15 The principle is illustrated. Specifically, when the movable member 6 is moved so that the high position of the abutting portion 601 abuts against the abutting end 303, the arc of the wing frame 3 is limited and reduced under the action of the reset elastic member 5, thereby reducing the reset height of the keycap 1; when the movable member 6 is moved so that the low position of the abutting portion 601 abuts against the abutting end 303, the arc of the wing frame 3 is increased under the action of the reset elastic member 5, thereby increasing the reset height of the keycap 1. Fig.15 As shown, when the abutting end 303 abuts against the high position of the abutting portion 601, the reset arc of the wing frame 3 becomes larger, and the height of the wing frame 3 is H. When the abutting end 303 leaves the abutting portion or abuts against the low position of the abutting portion 601, the reset arc of the wing frame 3 becomes smaller, and the height of the wing frame 3 is h. In the figure, H is smaller than h. It should be emphasized that Fig.15 It is just a simple schematic diagram to help you understand the working principle of the core technology of this patent.

[0039] Linkage arms 304 are extended from both sides of the first wing 301 and the second wing 302 of the wing frame 3 to enable the two wings to be pivoted or hinged. The linkage arm 304 is a structural arm in the wing frame 3 used to connect the first wing 301 and the second wing 302 to achieve pivotal or hinged connection between the two wings.

[0040] The assembly forms of the wing frame 3 and the base plate 2 in the present application include but are not limited to the following three main types, which are all adapted to the design of the base plate 2 and the movable part 6 of the present invention, and can realize the function of flexibly adjusting the height of the keycap 1 through the movable part 6 on the base plate 2.

[0041] In a specific embodiment 1 of the present application, as shown in FIGS. 1-3 , a first wing 301 and a second wing 302 are pivotally connected, and a central positioning column is provided on the outer side of the end of one of the linkage arms 304 of the first wing 301, and a pivot axis is provided on the inner side, and a pivot hole is only provided on the end of the other linkage arm 304 of the first wing 301; a central positioning column is provided on the outer side of the end of one of the linkage arms 304 of the second wing 302, and a pivot axis is provided on the inner side, and a pivot hole is only provided on the end of the other linkage arm 304 of the second wing 302; the first wing 301 and the second wing 302 are coupled with each other's pivot holes through their respective pivot axes to form a pivot relationship.

[0042] In the specific embodiment 2 of the present application, Figure 8-9 As shown, the first wing 301 and the second wing 302 are hinged, and two mutually hinged linkage arms 304 extend between the first wing 301 and the second wing 302, wherein the end of one linkage arm 304 is configured as a concave coupling port, and the end of the other linkage arm 304 is configured as a coupling block that can be extended into the coupling port.

[0043] In the specific embodiment 3 of the present application, Figure 10-11 As shown, the first wing 301 and the second wing 302 are coupled through the bracket component 4, and linkage arms 304 are extended on both sides of the first wing 301 and the second wing 302; an anti-slip fulcrum is protruded on one side of the linkage arm 304; a bracket is provided at a position corresponding to the anti-slip fulcrum on the bracket component 4, and a accommodating groove is provided on the bracket component 4, and the anti-slip fulcrum can be movably embedded in the corresponding accommodating groove and limited up and down, and also includes a limiting cover plate that can be fixed on the bracket component 4, and the limiting cover plate is provided with an anti-slip groove at a position corresponding to the accommodating groove, and the anti-slip groove can prevent the fulcrum embedded in the accommodating groove from detaching from the accommodating groove; the reset elastic member 5 is a reset torsion spring with two tilting arms, one tilting arm of the reset torsion spring provides an upward elastic force for the first wing, and the other tilting arm provides an upward elastic force for the second wing.

[0044] The abutting end 303 of the present application may be configured at the end of the linkage arm 304 or extend from at least one of the first wing 301 and the second wing 302 .

[0045] In the specific embodiment 4 of the present application, Figure 12-13 As shown, the abutting end 303 is the end of the linkage arm 304 , and the abutting end 303 and the linkage arm 304 are integrally constructed, extending from the linkage arm 304 , and abutting against the high and low positions of the abutting portion 601 to change the reset curvature of the wing frame 3 .

[0046] In the specific embodiment 5 of the present application, Fig.14 As shown, at least one of the first wing 301 and the second wing 302 has an abutting arm 305 extending therefrom, and the end of the abutting arm 305 is the abutting end 303. By moving the movable member 6 and changing the position (high position or low position) where the abutting portion 601 contacts the abutting end 303, the reset arc of the wing frame 3 under the action of the reset elastic member 5 can be affected. This adjustment force is transmitted to the wing frame 3 through the abutting arm 305, thereby realizing the control of the reset height of the keycap 1. The design of the abutting arm 305 makes the contact between the wing frame 3 and the movable member 6 more stable, which helps to maintain the stability and accuracy of the key assembly. When the reset height of the keycap 1 needs to be reduced, the high position of the abutting portion 601 can be in contact with the abutting end 303; when the reset height of the keycap 1 needs to be increased, the low position of the abutting portion 601 can be in contact with the abutting end 303. This design makes the key assembly more flexible and adaptable. Preferably, the abutment arm 305 is parallel to the adjacent linkage arm 304 , so that the key pressing is more stable.

[0047] The abutting portion 601 on the movable member 6 in the best embodiment of the present invention is configured as a sloped protrusion (of course, it can also be an arc-shaped protrusion), so that different contact effects can be produced when contacting the abutting end 303 of the wing frame 3. By adjusting the position of the movable member 6, the height of the sloped protrusion will contact the abutting end 303 at different positions, thereby changing the arc of contraction and expansion of the wing frame 3 under the action of the reset elastic member 5, and realizing the adjustment of the reset height of the keycap 1.

[0048] In order to facilitate dragging of the movable part 6, the movable part 6 is in the shape of an elongated strip, and a slide groove 201 is constructed on the bottom plate 2. The movable part 6 is arranged in the slide groove 201. The existence of the slide groove 201 provides a sliding track and limit for the movable part 6, ensuring that the movable part 6 can move smoothly and accurately along the predetermined path.

[0049] The slide groove 201 is also provided with a limiting protrusion 202, and the movable member 6 is provided with a limiting long slot hole 602 corresponding to the limiting protrusion 202. Figure 4-5As shown, the limiting protrusion 202 is used to limit the moving range of the movable part 6 on the slide groove 201. When the movable part 6 moves on the slide groove 201, once the inner edge of the limiting long slot hole 602 contacts the limiting protrusion 202, it is limited and cannot move anymore, thereby ensuring that the movable part 6 moves within a predetermined range, so as to ensure that the abutting end 303 and the abutting portion 601 on the movable part 6 can accurately determine the abutting position.

[0050] The PCB board 7 in the present application is placed on the bottom plate 2, and the movable part 6 is located between the bottom plate 2 and the PCB board. The PCB board 7 is provided with a through hole 701 corresponding to the abutment portion 601 of the movable part 6, so that when the movable part 6 moves between the PCB board 7 and the bottom plate 2, the abutment portion 601 on the movable part 6 can be exposed to the PCB board and contact the abutment end 303.

[0051] The utility model also provides a keyboard with adjustable keycap height, which uses a plurality of wing-type balanced key components in the utility model scheme to form a keyboard according to the layout method of manufacturing keyboards. In specific implementation, the movable member 6 is arranged as a whole through the bottom of the key according to the row or column of the key, so that the keycap height of each column or row on the entire keyboard can be directly changed when the movable member 6 is dragged.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A wing-type balanced key assembly, used to trigger an electrical component arranged on a PCB board to generate a signal, comprising a key cap, a base plate, and a wing frame assembled between the base plate and the key cap, wherein the wing frame is composed of a first wing and a second wing that are linked to each other in a V shape, and a bracket member for mounting and limiting the wing frame is provided on the base plate; a reset elastic member is also provided between the first wing and the second wing, characterized in that: The key assembly also includes a movable part arranged on the bottom plate and movable relative to the bottom plate, and the movable part is provided with a high and low position abutting part; the wing frame extends toward the bottom plate and has an abutting end abutting against the abutting part of the movable part; when the movable part is moved to make the high position of the abutting part abut against the abutting end, the arc of the wing frame reset under the action of the reset elastic part is limited and becomes smaller, thereby reducing the reset height of the keycap; when the movable part is moved to make the low position of the abutting part abut against the abutting end, the arc of the wing frame reset under the action of the reset elastic part becomes larger, thereby increasing the reset height of the keycap.

2. The wing-type balance button assembly according to claim 1, characterized in that: Both sides of the first wing and the second wing of the wing frame extend with linkage arms for pivoting or hingedly connecting the two wings, and the abutting end is the end of the linkage arm.

3. The wing-type balance button assembly according to claim 1, characterized in that: Linkage arms are extended on both sides of the first wing and the second wing of the wing frame to pivot or hinge the two wings. At least one of the first wing and the second wing is also provided with an abutment arm extending toward the bottom plate, and the end of the abutment arm is the abutment end.

4. The wing-type balance button assembly according to claim 3, characterized in that: The abutment arm is parallel to the linkage arm adjacent thereto.

5. The wing-type balance button assembly according to claim 3, characterized in that: The abutting portion on the movable member is configured as a sloped protrusion.

6. The wing-type balance button assembly according to claim 5, characterized in that: The movable member is in the shape of an elongated strip, a slide groove is formed on the bottom plate, and the movable member can be slidably arranged in the slide groove.

7. The wing-type balance button assembly according to claim 6, characterized in that: The slide groove is also provided with a limiting protrusion, and the movable part is provided with a limiting long slot hole corresponding to the limiting protrusion.

8. The wing-type balance button assembly according to claim 7, characterized in that: The PCB board is arranged on the bottom plate, the movable part is located between the bottom plate and the PCB board, and a through hole is opened at a position of the PCB board corresponding to the abutting part of the movable part.

9. A keyboard with adjustable keycap height, characterized in that: A wing-type balance button assembly according to any one of claims 1 to 8 is adopted.

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