Ultrathin key structure with good pressing hand feeling and capability of making metal sound
By adding torsion springs and limiting protrusions to the ultra-thin button structure, the problem of reduced hand feel in the ultra-thin button design is solved, and a better control experience and sound feedback is achieved, which improves the use feeling.
Patent Information
- Application Number
- CN202420149611.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-22
AI Technical Summary
In the ultra-thin button design of electronic products, as the product becomes smaller, the compression of the press stroke leads to a decrease in the control feel, and how to improve the press feel becomes the focus of the design.
An ultra-thin button structure including a button body, a support base, an elastic member and a circuit board is designed, by setting a first protrusion and a second protrusion on the positioning end, and installing a torsion spring and a limiting protrusion on the support base When released, increase the pressing resistance, and when released, the rebound force of the torsion spring pushes the buttons together with the elastic components to reset, forming a clear metal sound.
It effectively improves the handling feel and use feeling, increases the pressing resistance and rebound force, limits the pressing and rebound stroke, increases deformation resistance, and makes clear metal sounds through the collision of the torsion spring, enhancing the control experience.
Smart Images
Figure CN222233503U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of keyboards, in particular to an ultra-thin key structure which has a good pressing feel and can emit a metallic sound. Background Art
[0002] The feel of an operational product generally refers to the user's ability to clearly perceive changes in the product when operating the product. For example, when pressing a button, the user can clearly feel the resistance during the button pressing process or when the button is pressed into place, or the rebound force during the resetting process. The quality of the feel directly affects the user's control experience and is an important evaluation indicator for manually controlled products.
[0003] Keys are widely used in various electronic products. With the development trend of miniaturization of electronic products, the pressing stroke of keys is also compressed due to space limitations or design requirements. The structural parts related to the stroke of keys also need to be made smaller accordingly, but this change will directly lead to a decrease in the control feel. Therefore, how to improve the pressing feel is the design focus of the ultra-thin key structure. Utility Model Content
[0004] In response to the problems existing in the above-mentioned prior art, the utility model provides an ultra-thin key structure with a good pressing feel and a metallic sound, which can increase the pressing resistance of the key body during pressing the key body without affecting the stroke of the key body pushing the elastic component to trigger the circuit board; when the key body is released, the rebound force of the torsion spring can work together with the elastic component to quickly push the key body to reset, and can collide with the torsion spring during its rotation to emit a clear metallic sound, further improving the control feel and usage experience.
[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is as follows:
[0006] An ultra-thin key structure with a good pressing feel and a metallic sound, comprising a key body, a support seat, an elastic component and a circuit board, wherein the key body is a columnar structure, and a character end and a positioning end are provided along its axial direction, and pressing the character end can synchronously push the positioning end through the support seat to press the elastic component and press it against the circuit board; wherein,
[0007] A first protrusion and two or more second protrusions are provided on the outer wall of the positioning end, and a plurality of the second protrusions are arranged on the outer wall of the positioning end at equal intervals with the central axis of the positioning end as the center;
[0008] The support seat is provided with a guiding part, a mounting part and a limiting part in sequence along the axial direction of the key body, and an avoidance hole groove adapted to the positioning end is coaxially provided on the supporting seat; the guiding part is provided with a first slot, a third limiting protrusion, a fourth limiting protrusion and a plurality of clamping grooves, the first slot matches the first protrusion and penetrates through a side wall of the guiding part along the axial direction, the third limiting protrusion and the fourth limiting protrusion are respectively arranged on both sides of the first slot and are staggered, and a plurality of the clamping grooves match the second protrusions one by one and are arranged on the inner wall of the guiding part; a torsion spring is installed on the mounting part beside the first slot, one end of the torsion spring is fixed on the mounting part, and the other end extends to the side of the first slot and is located between the third limiting protrusion and the fourth limiting protrusion; the limiting The character end is arranged on the periphery of the elastic component, and its end extends to the side of the circuit board. The elastic component is arranged on the end of the support base away from the key body and is coaxially arranged with the positioning end; pressing the character end can synchronously drive the support base to move against the circuit board and compress the elastic component, synchronously drive the first protrusion on the positioning end to pass through the first slot and push one end of the torsion spring to deflect, and synchronously drive a plurality of the second protrusions to slide in the slot, release the character end, the elastic component can push the support base and the key body to leave the circuit board, and at the same time the torsion spring can push the key body to slide on the support base, and each of the slots can clamp one of the second protrusions to limit the rebound stroke of the key body on the support base.
[0009] As a further elaboration of the above technical solution:
[0010] In the above technical solution, a third groove extending axially is provided on the side wall of the positioning end on both sides of each second protrusion, and one end of each third groove extends to the end of the positioning end.
[0011] In the above technical solution, the end surface of the fourth limiting protrusion close to the torsion spring is an inclined surface, and one end portion of the torsion spring can slide along the inclined surface under the pressure of an external force.
[0012] In the above technical solution, a mounting groove adapted to the torsion spring is formed on the mounting portion beside the guide portion, and a through hole extending axially and adapted to one end of the torsion spring is provided on the mounting portion, and the through hole is connected to the mounting groove.
[0013] In the above technical solution, a second groove extending in the axial direction is further formed on the side wall of the limiting portion, and the second groove is communicated with the mounting groove.
[0014] In the above technical solution, the positioning end is a hollow structure, and a hole column extending along the axis is provided on the inner wall thereof, and a plurality of reinforcing ribs are provided on the periphery of the hole column.
[0015] In the above technical solution, the elastic component is a bowl-shaped structure with one end larger and the other end smaller, the smaller end is adapted to the hole column and its inner wall is provided with a contact extending toward the circuit board, the larger end is an open end and faces the circuit board and is provided with a plurality of ventilation holes.
[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: by installing a torsion spring on the support seat, and providing a first protrusion above the positioning end and a matching first groove on the guide portion, the pressing resistance of the key body can be increased during the pressing of the key body without affecting the stroke of the key body pushing the elastic component to trigger the circuit board; when the key body is released, the rebound force of the torsion spring can work together with the elastic component to quickly push the key body to reset; at the same time, the third limiting protrusion and the fourth limiting protrusion provided above and below the torsion spring can limit the pressing stroke and rebound stroke of the torsion spring, thereby improving its deformation resistance and control feel, and can collide with the torsion spring during its rotation to emit a clear metallic sound, thereby further improving the use experience; by providing a plurality of third grooves, a plurality of cantilever beams can be formed on the positioning end, thereby further enhancing the compressive deformation amount of the second protrusion, thereby further improving the deformation resistance and the control feel. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of the structure of this embodiment in a natural state;
[0018] Figure 2 is a schematic diagram of the decomposed structure of this embodiment;
[0019] Figure 3 Schematic diagram of the structure of the support base in this embodiment;
[0020] Figure 4 is a structural schematic diagram of the support base in another perspective of this embodiment;
[0021] Figure 5 Schematic diagram of the structure of the key body in this embodiment;
[0022] Figure 6 Schematic diagram of the structure of the elastic component in this embodiment.
[0023] In the figure: 10, button body; 11, character end; 12, positioning end; 20, support seat; 21, guide part; 22, mounting part; 23, limiting protrusion; 24, avoidance hole groove; 30, elastic component; 40, circuit board; 50, torsion spring; 1, first protrusion; 2, second protrusion; 3, first groove; 4, card slot; 5, third limiting protrusion; 6, fourth limiting protrusion; 7, mounting groove; 8, through hole; 9, second groove; 13, hole column; 14, reinforcing rib; 15, contact; 16, vent groove; 17, third groove. DETAILED DESCRIPTION
[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0025] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0026] like Figure 1-4As shown, an ultra-thin key structure with good pressing feel and metallic sound comprises a key body 10, a support seat 20, an elastic component 30 and a circuit board 40. The key body 10 is a columnar structure, and a character end 11 and a positioning end 12 are arranged along its axial direction. Pressing the character end 11 can synchronously push the positioning end 12 through the support seat 20 to press the elastic component 30 and press it against the circuit board 40; wherein:
[0027] A first protrusion 1 and two or more second protrusions 2 are provided on the outer wall of the positioning end 12, and a plurality of second protrusions 2 are provided on the outer wall of the positioning end 12 at equal intervals with the central axis of the positioning end 12 as the center.
[0028] A guide portion 21, a mounting portion 22 and a limiting portion 23 are sequentially provided on the support seat 20 along the axial direction of the key body, and an avoidance hole groove 24 adapted to the positioning end 12 is coaxially provided on the support seat 20; a first groove 3, a third limiting protrusion 5, a fourth limiting protrusion 6 and a plurality of clamping grooves 4 are provided on the guide portion 21, the first groove 3 matches the first protrusion 1 and penetrates a side wall of the guide portion 21 along the axial direction, the third limiting protrusion 5 and the fourth limiting protrusion 6 are respectively arranged on both sides of the first groove 3 and are staggered, and a plurality of clamping grooves 4 are matched one by one with the second protrusion 2 and are arranged on the inner wall of the guide portion 21; a torsion spring 50 is installed on the mounting portion 22 beside the first groove 3, one end of the torsion spring 50 is fixed on the mounting portion 22, and the other end extends to the side of the first groove 3 and is located between the third limiting protrusion 5 and the fourth limiting protrusion 6. ; The limiting portion 23 is arranged on the periphery of the elastic component 30, and its end extends to the side of the circuit board 40. The elastic component 30 is arranged at the end of the support seat 20 away from the key body 10 and is coaxially arranged with the positioning end 12; pressing the character end 11 can synchronously drive the support seat 20 to move against the circuit board 40 and compress the elastic component 30, synchronously drive the first protrusion 1 on the positioning end 12 to pass through the first slot 3 and push one end of the torsion spring 50 to deflect, and synchronously drive a plurality of second protrusions 2 to slide in the slot 4, release the character end 11, the elastic component 30 can push the support seat 20 and the key body 10 to leave the circuit board 40, and at the same time the torsion spring 50 can push the key body 10 to slide on the support seat 20, and each slot 4 can clamp a second protrusion 2 to limit the rebound stroke of the key body 10 on the support seat.
[0029] The utility model installs a torsion spring 50 on the support seat 20, and provides a first protrusion 1 on the positioning end 12 and a first groove 3 on the guide portion 21, so that the pressing resistance of the key body 10 can be increased during the pressing of the key body 10 without affecting the stroke of the key body 10 pushing the elastic component 30 to trigger the circuit board 40. When the key body 10 is released, the rebound force of the torsion spring 50 can work together with the elastic component 30 to quickly push the key body 10 to reset. At the same time, the third limiting protrusion 5 and the fourth limiting protrusion 6 provided above and below the torsion spring 50 can limit the pressing stroke and rebound stroke of the torsion spring 50, thereby improving its deformation resistance and control feel, and can collide with the torsion spring 50 during the rotation process to emit a clear metallic sound, thereby further improving the use experience.
[0030] Further, such as Figure 3-4 As shown, the end face of the fourth limiting protrusion 6 close to the torsion spring 50 is an inclined surface, and one end of the torsion spring 50 can slide along the inclined surface under the pressure of external force; a mounting groove 7 adapted to the torsion spring 50 is formed on the mounting plate 22 beside the guide protrusion 21, and a through hole 8 extending axially and adapted to one end of the torsion spring 50 is provided on the mounting plate 22, and the through hole 8 is connected to the mounting groove 7; a second cutting groove 9 extending axially is also formed on the side wall of the limiting protrusion 23, and the second cutting groove 9 is connected to the mounting groove 7.
[0031] It can be understood that the inclined surface can ensure that the torsion spring 50 slides smoothly on the support seat 20 after being compressed, and the inclined surface and the torsion spring 50 can gradually increase the resistance of the key body 10 to be pressed downward; the interconnected second slot 9 and the mounting slot 7 facilitate the production and processing of the support seat 20 and expand the extension space of the fourth limiting protrusion 6, so as to achieve the first protrusion 1, the torsion spring 50 and the fourth limiting protrusion 6 to match the total stroke of the key. In this embodiment, the support seat 20 is an integrally formed structural member.
[0032] Further, such as Figure 5 As shown, the side wall of the positioning end 12 is provided with an axially extending third groove 17 on both sides of each second protrusion 2, and one end of each third groove 17 extends to the end of the positioning end 12; the positioning end 12 is a hollow structure, and a hole column 13 extending along the axis is provided on its inner wall, and a plurality of reinforcing ribs 14 are provided on the periphery of the hole column 13.
[0033] It can be understood that the setting of several third grooves 17 can form several cantilever beams on the positioning end 12, and each second protrusion 2 is arranged on a cantilever beam. This structural setting can further enhance the compressive deformation of the second protrusion 2. Even if the groove 4 below is deeper (the guide part 21 is larger in size), it can still slide over the guide part 21 into the groove 4 and be stuck and limited by it in the return stroke, thereby reducing the limitations of the guide part 21 in size design, expanding the setting space of other limiting structural parts, and assisting in improving the limiting resistance and improving the hand feel.
[0034] Further, such as Figure 6 As shown, the elastic component 30 is a bowl-shaped structure with one end larger than the other end. The smaller end is adapted to the hole column 13 and a contact 15 extending toward the circuit board 40 is provided on its inner wall. The larger end is an open end facing the circuit board 40 and is provided with a plurality of ventilation holes 16.
[0035] It can be understood that the vent groove 16 and the connected mounting groove 7 and the second groove can avoid the formation of a vacuum in the elastic component 30 and between the key body 10 and the support seat 20 during the pressing process, ensuring smooth pressing and rebound of the key body 10, reducing the probability of its operational failure and extending its service life.
[0036] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. An ultra-thin key structure with a good pressing feel and a metallic sound, comprising a key body, a support seat, an elastic component and a circuit board, wherein the key body is a cylindrical structure, and a character end and a positioning end are provided along its axial direction, and pressing the character end can synchronously push the positioning end through the support seat to press the elastic component and press it against the circuit board; characterized in that: A first protrusion and two or more second protrusions are provided on the outer wall of the positioning end, and a plurality of the second protrusions are arranged on the outer wall of the positioning end at equal intervals with the central axis of the positioning end as the center; The support seat is provided with a guiding part, a mounting part and a limiting part in sequence along the axial direction of the key body, and an avoidance hole groove adapted to the positioning end is coaxially provided on the supporting seat; the guiding part is provided with a first slot, a third limiting protrusion, a fourth limiting protrusion and a plurality of clamping grooves, the first slot matches the first protrusion and penetrates through a side wall of the guiding part along the axial direction, the third limiting protrusion and the fourth limiting protrusion are respectively arranged on both sides of the first slot and are staggered, and a plurality of the clamping grooves match the second protrusions one by one and are arranged on the inner wall of the guiding part; a torsion spring is installed on the mounting part beside the first slot, one end of the torsion spring is fixed on the mounting part, and the other end extends to the side of the first slot and is located between the third limiting protrusion and the fourth limiting protrusion; the limiting The character end is arranged on the periphery of the elastic component, and its end extends to the side of the circuit board. The elastic component is arranged on the end of the support base away from the key body and is coaxially arranged with the positioning end; pressing the character end can synchronously drive the support base to move against the circuit board and compress the elastic component, synchronously drive the first protrusion on the positioning end to pass through the first slot and push one end of the torsion spring to deflect, and synchronously drive a plurality of the second protrusions to slide in the slot, release the character end, the elastic component can push the support base and the key body to leave the circuit board, and at the same time the torsion spring can push the key body to slide on the support base, and each of the slots can clamp one of the second protrusions to limit the rebound stroke of the key body on the support base.
2. The ultra-thin key structure with good pressing feel and metallic sound according to claim 1, characterized in that: Axially extending third grooves are provided on the side wall of the positioning end on both sides of each second protrusion, and one end of each third groove extends to the end of the positioning end.
3. The ultra-thin key structure with good pressing feel and metallic sound according to claim 1, characterized in that: The end surface of the fourth limiting protrusion close to the torsion spring is an inclined surface, and one end of the torsion spring can slide along the inclined surface under the pressure of external force.
4. The ultra-thin key structure with good pressing feel and metallic sound according to claim 1, characterized in that: The mounting portion is provided with a mounting groove matched with the torsion spring at the side of the guide portion, and the mounting portion is provided with a through hole extending in the axial direction and matched with one end portion of the torsion spring, and the through hole is communicated with the mounting groove.
5. The ultra-thin key structure with good pressing feel and metallic sound according to claim 4, characterized in that: A second groove extending in the axial direction is also formed on the side wall of the limiting portion, and the second groove is communicated with the mounting groove.
6. An ultra-thin key structure with good pressing feel and metallic sound according to any one of claims 1 to 5, characterized in that: The positioning end is a hollow structure, and a hole column extending along the axis is arranged on the inner wall thereof, and a plurality of reinforcing ribs are arranged on the periphery of the hole column.
7. The ultra-thin key structure with good pressing feel and metallic sound according to claim 6, characterized in that: The elastic component is a bowl-shaped structure with one end larger than the other end, the smaller end of which is adapted to the hole column and has a contact extending toward the circuit board on its inner wall, and the larger end of which is an open end facing the circuit board and has a plurality of ventilation holes and grooves thereon.