Key with pressing section hand feeling

Abstract

The utility model discloses a key with pressing section hand feeling, which comprises a key seat, a pressing handle capable of moving up and down in the key seat and a spring combination, the spring combination is abutted between the pressing handle and the key seat, and the spring combination is formed by connecting at least two reset springs in series through a spring seat. When the pressing handle is pressed and moves towards the base from the initial position, the pressing force applied to the spring combination by the pressing handle is sequentially transmitted to the key base from top to bottom. The reset spring has different spring constants which are gradually increased from top to bottom, and when the pressing handle is pressed, the hand feeling provided by the spring combination is enhanced along with the increase of the pressing stroke. By designing the spring combination formed by connecting at least two reset springs with different spring constants in series, the gradually enhanced resistance feeling in the pressing process is achieved, and therefore more comfortable and diversified pressing experience is provided for a user.

Description

Technical Field

[0001] The utility model relates to the field of buttons, in particular to a button with a segmented pressing feel. Background Art

[0002] Currently, key designs primarily rely on springs or silicone domes to achieve the desired rebound effect in keycaps. Typically, these springs have a constant spring constant. In contrast, the deformation mechanism of silicone domes differs from the linear deformation of springs, and their spring constant is not fixed. During the initial elastic deformation stage, the silicone domes maintain their geometric shape and exhibit a large spring constant. However, as the structure enters the buckling deformation stage, the spring constant provided by the silicone domes decreases. Therefore, during use, users initially experience a high pressure threshold, which then gradually decreases, and the elastic energy stored in the silicone domes after deformation is relatively low.

[0003] However, both of these design approaches result in a single pressing feel, and are unable to provide users with a diverse pressing experience or adjust the feel according to the pressing depth. Utility Model Content

[0004] In view of the above problems, the present invention aims to provide a key with a segment pressing feel.

[0005] To achieve this technical objective, the solution of the present invention is: a key with a pressing segment feel, comprising a key base, and a handle that can move up and down in the key base, and also comprising a spring combination, wherein the spring combination abuts between the handle and the key base, and the spring combination is composed of at least two return springs connected in series via a spring base, so that when the handle is pressed and moves from an initial position toward the base, the pressing force applied by the handle to the spring combination is sequentially transmitted from top to bottom to the key base; the return spring has different spring constants, and increases step by step from top to bottom, and when the handle is pressed, as the pressing stroke becomes larger, the feel provided by the spring combination becomes stronger.

[0006] Preferably, the spring combination includes a first spring, a second spring, a third spring and a fourth spring, the first spring and the fourth spring have the same first outer diameter, and the second spring and the third spring have the same second outer diameter.

[0007] Preferably, the first outer diameter is smaller than the second outer diameter.

[0008] Preferably, the spring combination also includes an upper spring seat, an intermediate spring seat and a lower spring seat, the upper spring seat has an upper outer convex ring and a lower inner concave ring, the middle outer wall of the intermediate spring seat has a layer of middle convex ring, and the lower spring seat has an upper inner concave ring and a lower outer convex ring.

[0009] Preferably, the bottom of the handle abuts against a "T"-shaped linkage shaft, the top of the first spring is sleeved under the linkage shaft, and the bottom of the first spring abuts against the lower concave ring of the upper spring seat; the top of the second spring abuts against the upper outer convex ring of the upper spring seat, and the bottom of the second spring abuts against the middle convex ring of the intermediate spring seat; the top of the third spring abuts against the middle convex ring of the intermediate spring seat, and the bottom of the third spring abuts against the lower outer convex ring of the lower spring seat; the top of the fourth spring abuts against the upper concave ring of the lower spring seat.

[0010] Preferably, a hollow guide seat is protruded upward and downward from the middle of the key seat, the bottom of the fourth spring is sleeved outside the upper part of the guide seat of the key seat, and the push handle can be pressed into the lower part of the guide seat of the key seat.

[0011] Preferably, it further includes a hollow support with upper and lower cylinders, the base is provided with a through hole, the lower end of the support passes through and is fixed on the base, the bottom of the fourth spring is sleeved on the upper cylinder of the support, and the handle can be pressed into the lower cylinder of the support.

[0012] Preferably, a PCB board is further included, wherein the PCB board is located at the bottom of the key base, and legs extend from the bottom of the key base, and the PCB board is provided with through holes for the legs to pass through.

[0013] Preferably, a Hall element is provided on the patch on the PCB board, and a magnetic part is installed in the linkage shaft. When the handle is pressed, the magnetic part in the linkage shaft moves downward to trigger the Hall element to output an electrical signal; the first spring, the second spring, the third spring and the fourth spring are non-magnetic springs.

[0014] Preferably, the linkage shaft consists of a shaft top and a shaft body. The linkage shaft is independent of the push handle, and the shaft top contacts the bottom center position of the push handle; a magnetic capsule is provided at the bottom of the linkage shaft, and the magnetic part is installed in the magnetic capsule.

[0015] The beneficial effect of the present invention is that by designing a spring combination composed of at least two return springs with different spring constants connected in series, a gradually increasing sense of resistance is achieved during the pressing process, thereby providing the user with a more comfortable and diverse pressing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the spring assembly and the PCB board in the present utility model;

[0019] Figure 4 An exploded view of the spring assembly in the present invention;

[0020] Figure 5 It is a cross-sectional view of the spring assembly in the present utility model;

[0021] Figure 6 It is a structural schematic diagram of the key base in the utility model.

[0022] In the figure: 1. Push handle; 2. Spring assembly; 21. First spring; 22. Second spring; 23. Third spring; 24. Fourth spring; 25. Upper spring seat; 251. Upper outer convex ring; 252. Lower inner concave ring; 26. Middle spring seat; 261. Middle convex ring; 27. Lower spring seat; 271. Upper inner concave ring; 272. Lower outer convex ring; 28. Linkage shaft; 29. ​​Support; 3. Key seat; 31. Guide seat; 32. Support foot; 4. Hall element; 5. PCB board. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. To provide a clear and complete description of the technical solution, the following embodiments are selected for illustration; the following embodiments are part of the present invention; any other embodiments obtained based on this application without creative effort are within the scope of protection of the present invention.

[0024] In the following embodiments, it should be noted that the terms "upper," "lower," "left," "right," "inner," "outer," "top / bottom," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the clear description of the embodiments. They do not indicate or imply that the devices or components referred to must have a specific orientation and should not be construed as limitations on the present application. Furthermore, the terms "first" and "second" in the embodiments are used solely for descriptive purposes and do not indicate or imply relative importance.

[0025] like Figure 1-5 As shown, the specific embodiment of the present invention is a key with a step-by-step pressing feel, comprising a keybed 3, a handle 1 that can move up and down within the keybed 3, and a spring assembly 2. The spring assembly 2 is located between the handle 1 and the keybed 3 and serves to provide the step-by-step pressing feel.

[0026] The spring assembly 2 consists of at least two return springs connected in series via a spring seat. In this embodiment, the spring assembly 2 includes a first spring 21, a second spring 22, a third spring 23, and a fourth spring 24. These springs are connected in series via an upper spring seat 25, an intermediate spring seat 26, and a lower spring seat 27. Each return spring has a different spring constant, which increases from top to bottom. This means that as the handle 1 is pressed further, the resistance provided by the spring assembly 2 gradually increases, providing a distinct click feel.

[0027] The spring constant refers to the force generated by a spring under unit deformation. In this application, different springs have different spring constants, which directly affects the feel during the pressing process. When the handle 1 is pressed, it first compresses the spring with a smaller spring constant (such as the first spring 21), at which point the pressing force felt by the user is relatively small. As the pressing stroke increases, the springs with larger spring constants (such as the second, third, and fourth springs 24) are gradually compressed, and the pressing force felt by the user also increases. This gradually increasing pressing force creates a distinct segmented feel, allowing the user to feel the changes in resistance at different stages during the pressing process.

[0028] Specifically, the first spring 21 and the fourth spring 24 have the same first outer diameter, while the second spring 22 and the third spring 23 have the same second outer diameter. Furthermore, the first outer diameter is smaller than the second outer diameter. This design makes the spring assembly 2 more compact while ensuring effective series connection between the different springs.

[0029] The upper spring seat 25 has an upper outer convex ring 251 and a lower inner concave ring 252. The middle outer wall of the intermediate spring seat 26 has a middle convex ring 261. The lower spring seat 27 has an upper inner concave ring 271 and a lower outer convex ring 272. These structural features allow the springs to be stably abutted between the spring seats, ensuring a smooth and stable pressing process.

[0030] The bottom of the handle 1 abuts against a T-shaped linkage shaft 28. The top of the first spring 21 is sleeved below the linkage shaft 28, and its bottom abuts against the lower concave ring 252 of the upper spring seat 25. The top of the second spring 22 abuts against the upper outer convex ring 251 of the upper spring seat 25, and its bottom abuts against the middle convex ring 261 of the intermediate spring seat 26. The top of the third spring 23 abuts against the middle convex ring 261 of the intermediate spring seat 26, and its bottom abuts against the lower outer convex ring 272 of the lower spring seat 27. The top of the fourth spring 24 abuts against the upper concave ring 271 of the lower spring seat 27. This structure ensures that the pressing force can be transmitted sequentially from top to bottom, achieving a paragraph feel, and the top and bottom of each spring abut against the corresponding spring seat to ensure stable transmission of the pressing force.

[0031] A hollow guide 31 extends upward and downward from the center of the keybed 3. The bottom of the fourth spring 24 is positioned outside the upper portion of the guide 31 of the keybed 3, allowing the push handle 1 to be pressed into the lower portion of the guide 31 of the keybed 3. This design not only ensures the stability of the spring assembly 2 but also allows the push handle 1 to move smoothly during the pressing process.

[0032] As another embodiment, the present application may also include a hollow support 29 with upper and lower cylindrical ends. The keybed 3 has a through-hole, through which the lower end of the support 29 passes and is fixed to the keybed 3. The bottom of the fourth spring 24 is sleeved on the upper cylindrical end of the support 29, and the handle 1 can be pressed into the lower cylindrical end of the support 29. This design provides another way to install the spring assembly 2, making the key structure more flexible.

[0033] The present application also includes a PCB 5 located at the bottom of the keybed 3. Legs 32 extend from the bottom of the keybed 3, and the PCB 5 has through-holes through which the legs 32 pass. This design facilitates the connection of the keys to the PCB, enabling electrical signal transmission and providing greater key stability.

[0034] A Hall effect element 4 is mounted on a patch on the PCB 5, and a magnetic element is installed within the linkage shaft 28. When the handle 1 is pressed, the magnetic element within the linkage shaft 28 moves downward, triggering the Hall effect element 4 to output an electrical signal. This design allows the button to function as an electrical switch, achieving electrical control. Furthermore, to ensure the proper operation of the Hall effect element 4, the first spring 21, second spring 22, third spring 23, and fourth spring 24 are all non-magnetic springs to prevent interference with the Hall effect element 4.

[0035] The linkage shaft 28, consisting of a shaft tip and a shaft body, is independent of the push handle 1, with its apex contacting the center of the bottom of the handle 1. This design allows the linkage shaft 28 to stably transmit pressing force while ensuring smooth movement of the handle 1. A magnetic capsule is located at the bottom of the linkage shaft 28, housing the magnetic element. This structure not only protects the magnetic element but also ensures effective triggering between the magnetic element and the Hall effect element 4.

[0036] In summary, the keypad with a click-to-click feel provided by this application achieves a distinct click-to-click feel by designing return springs and spring seat structures with different spring constants. Furthermore, the design of the linkage shaft and Hall element enables the keypad to function as an electrical switch, thus offering broad application prospects.

[0037] 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 replacements and improvements made to the above embodiments based on the technical essence of the present invention should be included in the scope of protection of the technical solution of the present invention.

Claims

1. A key having a pressing feel, comprising a keybed and a handle capable of moving up and down within the keybed, characterized in that: It also includes a spring combination, which abuts between the button handle and the key seat. The spring combination is composed of at least two return springs connected in series via a spring seat, so that when the button handle is pressed and moves from an initial position toward the key seat, the pressing force applied by the button handle to the spring combination is transmitted to the key seat in sequence from top to bottom; the return spring has different spring constants and increases step by step from top to bottom. When the button handle is pressed, as the pressing stroke becomes larger, the feel provided by the spring combination becomes stronger.

2. The key with a paragraph-like pressing feel according to claim 1, characterized in that: The spring assembly includes a first spring, a second spring, a third spring and a fourth spring. The first spring and the fourth spring have the same first outer diameter, and the second spring and the third spring have the same second outer diameter.

3. The key with a paragraph-like pressing feel according to claim 2, characterized in that: The first outer diameter is smaller than the second outer diameter.

4. The key with a paragraph-like pressing feel according to claim 3, characterized in that: The spring assembly also includes an upper spring seat, an intermediate spring seat and a lower spring seat. The upper spring seat has an upper outer convex ring and a lower inner concave ring. The middle outer wall of the intermediate spring seat has a layer of middle convex ring. The lower spring seat has an upper inner concave ring and a lower outer convex ring.

5. The key with a paragraph-like pressing feel according to claim 4, characterized in that: The bottom of the push handle abuts against a "T"-shaped linkage shaft, the top of the first spring is sleeved under the linkage shaft, and the bottom of the first spring abuts against the lower concave ring of the upper spring seat; the top of the second spring abuts against the upper outer convex ring of the upper spring seat, and the bottom of the second spring abuts against the middle convex ring of the intermediate spring seat; the top of the third spring abuts against the middle convex ring of the intermediate spring seat, and the bottom of the third spring abuts against the lower outer convex ring of the lower spring seat; the top of the fourth spring abuts against the upper concave ring of the lower spring seat.

6. The key with a paragraph-like pressing feel according to claim 5, characterized in that: The middle part of the key seat extends upward and downward to form a hollow guide seat. The bottom of the fourth spring is sleeved outside the upper part of the guide seat of the key seat. The push handle can be pressed into the lower part of the guide seat of the key seat.

7. The key with a paragraph-like pressing feel according to claim 5, characterized in that: It also includes a hollow support with upper and lower cylinders, the key base is provided with a through hole, the lower end of the support passes through and is fixed on the key base, the bottom of the fourth spring is sleeved on the upper cylinder of the support, and the handle can be pressed into the lower cylinder of the support.

8. The key with a paragraph-pressing feel according to any one of claims 5 to 7, characterized in that: The key base further comprises a PCB board, which is located at the bottom of the key base. A supporting foot extends from the bottom of the key base, and a through hole is provided on the PCB board for the supporting foot to pass through.

9. The key with a paragraph-like pressing feel according to claim 8, characterized in that: A Hall element is provided on the patch on the PCB board, and a magnetic part is installed in the linkage shaft. When the handle is pressed, the magnetic part in the linkage shaft moves downward to trigger the Hall element to output an electrical signal; the first spring, the second spring, the third spring and the fourth spring are non-magnetic springs.

10. The key with a paragraph-like pressing feel according to claim 9, characterized in that: The linkage shaft consists of a shaft top and a shaft body. The linkage shaft is independent of the button handle, and the shaft top contacts the bottom center position of the button handle; a magnetic capsule is provided at the bottom of the linkage shaft, and the magnetic part is installed in the magnetic capsule.

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