Key structure

Abstract

This application relates to the field of plastic button technology, and in particular to a button structure. The button structure includes a faceplate, a button body, and a tactile switch; the button body includes a keycap and a push-button; a receiving groove for mounting the keycap is formed on the faceplate, and a first through hole is formed in the bottom wall of the receiving groove; the tactile switch is disposed on the side of the bottom wall opposite to the keycap, and the push-button is connected to the side of the keycap facing the bottom wall, passing through the first through hole and positioned directly opposite the spring of the tactile switch; an elastic element is disposed on the bottom wall, and the keycap abuts against the elastic element. In the free state of the keycap, the elastic element is in a compressed state; when the keycap is subjected to external force, the push-button can move towards the tactile switch to compress the spring of the tactile switch; when the external force is removed, the keycap can return to its original position under the action of the elastic element. This button structure solves the problems of key jamming and poor user experience inherent in traditional button structures.

Description

Technical Field

[0001] This application relates to the field of plastic button technology, and in particular to a button structure. Background Technology

[0002] Traditional button structures typically consist of a plastic button (the outer pressing part, providing elasticity and tactile feedback) and a tactile switch (the internal electronic component). The plastic button has a raised "press post" at its bottom, directly opposite the tactile switch's contact spring. When the user presses the plastic button, the press post pushes down on the tactile switch's contact spring, making it conductive; when released, the pressure disappears, the metal contact spring returns to its original position due to its elasticity, the contacts separate, and the circuit is broken again.

[0003] However, in traditional button structures, when the user releases the pressure, the reset of the plastic button relies solely on the elasticity of the metal spring and the rubber button itself. During use, due to the mating gaps and burrs on the plastic buttons, the edges of the buttons often jam. Furthermore, the single downward press of the plastic button results in a dull tactile feel and a poor user experience. Utility Model Content

[0004] The purpose of this application is to provide a button structure that solves the problems of mating gaps and burrs on plastic buttons, frequent button jamming at the edges of plastic buttons, and dull button feel and poor user experience when using traditional button structures.

[0005] According to this application, a button structure is provided, the button structure including a faceplate, a button body, and a tactile switch; the button body includes a keycap and a push button; a receiving groove for mounting the keycap is formed on the faceplate, and a first through hole is formed in the bottom wall of the receiving groove; the tactile switch is disposed on the side of the bottom wall opposite to the keycap, and the push button is connected to the side of the keycap facing the bottom wall, the push button passes through the first through hole and is disposed directly opposite the spring of the tactile switch; an elastic element is disposed on the bottom wall, and the keycap abuts against the elastic element. In the free state of the keycap, the elastic element is in a compressed state; when the keycap is subjected to external force, the push button can move toward the tactile switch to compress the spring of the tactile switch; when the external force is removed, the keycap can be reset under the action of the elastic element.

[0006] In any of the above technical solutions, the key body further includes a claw, which is connected to the side of the keycap facing the bottom wall; the bottom wall has a second through hole for the claw to pass through, and a hook is provided at the end of the claw away from the keycap, which engages with the side of the bottom wall opposite to the keycap, so that the keycap compresses the elasticity.

[0007] In any of the above technical solutions, the push post is further connected to the middle of the keycap, and the first through hole is opened in the middle of the bottom wall; the number of the second through holes is multiple, and the multiple second through holes are arranged around the first through hole.

[0008] In any of the above technical solutions, the elastic element is a cantilever structure formed on the bottom wall, the cantilever structure is part of the bottom wall and integrally formed with the bottom wall; the cantilever structure includes a fixed end and a suspended end opposite to each other, the cantilever structure also includes a first protrusion structure, the first protrusion structure is connected to the side of the suspended end of the cantilever structure facing the keycap; the key body also includes a second protrusion structure, the second protrusion structure is connected to the side of the keycap facing the bottom wall, and the second protrusion structure abuts against the first protrusion structure.

[0009] In any of the above technical solutions, the cantilever structure further includes a main cantilever, the receiving groove is a circular groove, the main cantilever includes a fixed end and a suspended end that are opposite to each other in the radial direction of the receiving groove; the suspended end of the main cantilever is disposed in the middle of the bottom wall, the first through hole is opened in the suspended end of the main cantilever, the first protrusion structure on the main cantilever is an annular first rib, the first rib is formed on the side of the first through hole facing the keycap and is disposed around the edge of the first through hole; the second protrusion structure includes a second protrusion, the second protrusion is connected to the outer edge of the key post, and the second protrusion abuts against the first rib.

[0010] In any of the above technical solutions, the cantilever structure further includes multiple cantilever arms, each cantilever arm having a fixed end and a suspended end opposite to each other in the radial direction. In the radial direction, the fixed end of the cantilever arm is disposed near the first through hole, and the multiple cantilever arms are disposed around the first through hole. The first protrusion structure on the cantilever arm is a first protrusion point. The second protrusion structure also includes an annular second surrounding bone, and the first protrusion point abuts against the second surrounding bone.

[0011] In any of the above technical solutions, the elastic element is further defined as an annular elastic pad; the elastic element is press-fitted between the bottom wall and the keycap.

[0012] In any of the above technical solutions, a ring groove is further provided between the bottom wall and the surrounding wall of the receiving groove, and the elastic element is limited within the ring groove.

[0013] In any of the above technical solutions, the key body further includes an annular second rib, which is connected to the side of the keycap facing the bottom wall. The second rib has a gap with the edge of the keycap to limit the elastic element.

[0014] In any of the above technical solutions, the button structure further includes a circuit module; the circuit module is fixedly connected to the faceplate, and the circuit module is electrically connected to the side of the tactile switch opposite to the button body.

[0015] In any of the above technical solutions, the face shell further includes a shell body and a boss protruding relative to the shell body, and the receiving groove is formed on the boss.

[0016] The button structure of this application includes a faceplate, a button body, and a tactile switch. The button body includes a keycap and a push button. A receiving groove for mounting the keycap is formed on the faceplate, and a first through hole is formed in the bottom wall of the receiving groove. The tactile switch is located on the side of the bottom wall opposite to the keycap. The push button is connected to the side of the keycap facing the bottom wall, passes through the first through hole, and is positioned directly opposite the spring of the tactile switch. An elastic element is provided on the bottom wall, and the keycap abuts against the elastic element. In the free state of the keycap, the elastic element is in a compressed state. When the keycap is subjected to external force, the push button can move towards the tactile switch to compress the spring of the tactile switch. When the external force is removed, the keycap can return to its original position under the action of the elastic element.

[0017] Based on the above technical features, the beneficial effects of this application are as follows: This application features an elastic element on the bottom wall. During assembly, the keycap abuts against the elastic element to apply pre-pressure. This design, with reverse pre-pressure on the key body, ensures the key body remains elastic within its designed receiving groove. When the keycap is subjected to external force, it further compresses the elastic element, causing the key post to move towards the tactile switch, compressing the tactile switch's spring and activating it. When the external force is removed, the keycap returns to its original position under the action of the elastic element.

[0018] Because of the elastic element's design, in the pre-compression state, the elastic element (button body) is in an "energy-storing" state. When the user presses the button body, the elastic element is further compressed, and the compressed elastic force creates reverse resistance, giving the user a crisp feel and a smooth, silky experience. After releasing, the compressed elastic force quickly pushes the keycap back to its original position, preventing the button body from jamming. Additionally, in the initial state (free state), the button body is designed with reverse pre-compression, keeping it elastic within its designed receiving groove. This pre-compression elasticity can compensate for assembly errors through its own deformation, ultimately ensuring that the button body maintains a consistent initial state and trigger feel after assembly, and preventing wobbling issues caused by assembly errors.

[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This diagram shows the overall structure of the button structure in the first embodiment of this application; Figure 2 Show Figure 1 A schematic diagram of the exploded structure; Figure 3 Show Figure 2 Enlarged schematic diagram of part of the structure; Figure 4 This is a schematic diagram of the overall structure of the button body in the first embodiment of this application; Figure 5 A corresponding assembly diagram of the button body in the first embodiment is shown; Figure 6 Show Figure 1 Cross-sectional view; Figure 7 Show Figure 6 Enlarged schematic diagram of part of the structure; Figure 8 This diagram shows an exploded view of the button structure in a second embodiment of the present application. Figure 9 Show Figure 8 Enlarged schematic diagram of part of the structure; Figure 10 This is a schematic diagram of the overall structure of the button body in the second embodiment of this application; Figure 11 A cross-sectional view of the button structure of this application in a second embodiment is shown; Figure 12 Show Figure 11 A magnified schematic diagram of part of the structure.

[0022] Icons: 100-Faceplate; 110-Shell Body; 120-Boss; 121-Receiving Slot; 1211-Bottom Wall; 1212-First Through Hole; 1213-Second Through Hole; 1214-Annular Slot; 200-Button Body; 210-Keycap; 220-Button Post; 230-Claw; 240-Second Protrusion; 250-Second Support Rib; 300-Tact Switch; 400-Screw; 500-Circuit Module; 600-Main Cantilever; 610-First Support Rib; 700-Support Cantilever; 710-First Protrusion; 800-Elastic Pad. Detailed Implementation

[0023] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0024] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0025] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0026] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0027] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0028] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0029] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0030] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0031] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0032] This application provides a button structure that solves the problems of traditional button structures, such as mating gaps and burrs on plastic buttons, frequent button jamming at the edges of plastic buttons, and dull tactile feedback and poor user experience when only pressed downwards. See below for reference. Figures 1 to 12 The button structure described in some embodiments of this application is described.

[0033] like Figure 2 , Figure 7 , Figure 8 and Figure 12As shown, the button structure of this application includes a faceplate 100, a button body 200, and a tactile switch 300. The button body 200 includes a keycap 210 and a push button 220. A receiving groove 121 for mounting the keycap 210 is formed on the faceplate 100, and a first through hole 1212 is formed on the bottom wall 1211 of the receiving groove 121. The tactile switch 300 is disposed on the side of the bottom wall 1211 opposite to the keycap 210. The push button 220 is connected to the side of the keycap 210 facing the bottom wall 1211, and the push button 220 passes through the first through hole 1212 and is positioned directly opposite the spring contact of the tactile switch 300. An elastic element is provided on the bottom wall 1211, and the keycap 210 abuts against the elastic element to pre-compress the elastic element (i.e., when the keycap is free, the elastic element is in a compressed state). When the keycap 210 is subjected to external force, the push post 220 can move toward the tactile switch 300 to press the spring of the tactile switch 300; when the external force is removed, the keycap 210 can be reset under the action of the elastic element.

[0034] As described above, this application provides an elastic element on the bottom wall 1211, and during assembly, the keycap 210 abuts against the elastic element to pre-compress it. With this configuration, the key body 200 is designed with reverse pre-compression, allowing it to remain elastic within the designed receiving groove 121. When the keycap 210 is subjected to external force, it further compresses the elastic element, causing the push button 220 to move towards the tactile switch 300, compressing the spring of the tactile switch 300 and making it conductive. When the external force is removed, the keycap 210 can return to its original position under the action of the elastic element.

[0035] Because of the elastic element's design, in the pre-compressed state (initial state), the elastic element (key body 200) is in an "energy-storing" state. When the user presses the key body 200, the elastic element is further compressed, and the compressed elastic force creates reverse resistance, giving the user a crisp feel and a smooth, silky experience. After releasing, the compressed elastic force quickly pushes the keycap 210 back to its original position, preventing the key body 200 from getting stuck. Additionally, in the initial state (free state), the key body 200 is designed with reverse pre-compress, ensuring that it remains elastic within the designed receiving groove 121. The pre-compressed elasticity can compensate for assembly errors through its own deformation, ultimately ensuring that the key body 200 maintains a consistent initial state and trigger feel after assembly, and preventing wobbling issues caused by assembly errors.

[0036] See below Figures 1 to 7 The button structure in the first embodiment of this application is described, and see also... Figures 8 to 12 The button structure of the second embodiment of this application is described.

[0037] like Figure 4 and Figure 7As shown, in the first embodiment, the key body 200 of this application further includes a claw 230, which is connected to the side of the keycap 210 facing the bottom wall 1211, as shown. Figure 3 and Figure 7 As shown, the bottom wall 1211 has a second through hole 1213 for the claw 230 to pass through. A hook is provided at the end of the claw 230 away from the keycap 210. The hook engages with the side of the bottom wall 1211 opposite to the keycap 210, so that the keycap 210 pre-compresses the elastic element. With this design, the traditional plastic key body 200 does not meet space requirements and requires pre-fixation via heat fusion or additional fasteners. Therefore, the fixing method of this application uses the claw 230, which passes through the second through hole 1213 of the bottom wall 1211 and engages with the back side of the bottom wall 1211 using the existing space within the receiving groove 121. Compared to existing technologies, this saves design space, and the claw 230, with its hook, ensures that the key body 200 will not detach after assembly.

[0038] In the first embodiment, preferably, as follows: Figure 3 and Figure 7 As shown, the key post 220 is connected to the middle of the keycap 210, the first through hole 1212 is opened in the middle of the bottom wall 1211, and the number of second through holes 1213 is multiple. Figure 3 The diagram illustrates three second through holes 1213 (evenly distributed), with multiple second through holes 1213 surrounding the first through hole 1212. This arrangement results in more even force distribution on the keycap 210 and the elastic element, leading to smoother and more fluid movement of the keycap 210.

[0039] In the first embodiment, as Figure 3 As shown, the elastic element is a cantilever structure formed on the bottom wall 1211. The cantilever structure is part of the bottom wall 1211 and is integrally formed with it. The cantilever structure includes a fixed end and a suspended end that are opposite to each other. The cantilever structure also includes a first protrusion structure, which is connected to the side of the suspended end of the cantilever structure facing the keycap 210. The key body 200 also includes a second protrusion structure, which is connected to the side of the keycap 210 facing the bottom wall 1211 and abuts against the first protrusion structure. That is, the pre-pressure on the cantilever structure is achieved by the cooperation between the second protrusion structure at the bottom of the key body 200 and the first protrusion structure of the cantilever structure.

[0040] In the first embodiment, as an example, such as Figure 3As shown, the cantilever structure includes a main cantilever 600, a receiving groove 121 which is a circular groove, and a fixed end and a suspended end that are opposite each other in the radial direction of the receiving groove 121. The suspended end of the main cantilever 600 is located in the middle of the bottom wall 1211. A first through hole 1212 is formed at the suspended end of the main cantilever 600. The first protrusion structure on the main cantilever 600 is an annular first rib 610. The first rib 610 is formed on the side of the first through hole 1212 facing the keycap 210 and is arranged around the edge of the first through hole 1212. Figure 4 and Figure 7 As shown, the second protrusion structure includes a plurality of second protrusions 240, and the plurality of second protrusions 240 are connected to the outer edge of the push post 220. Figure 4 The diagram illustrates four evenly distributed convex points, such as... Figure 5 and Figure 7 As shown, multiple second protrusions 240 abut against the first rib 610. That is, the multiple second protrusions 240 at the bottom of the button body 200 cooperate with the first rib 610 on the main cantilever 600 to achieve pre-pressure on the main cantilever 600.

[0041] In the first embodiment, preferably, as follows: Figure 3 As shown, the cantilever structure also includes multiple cantilever arms 700. Each cantilever arm 700 includes a fixed end and a suspended end that are opposite to each other in the radial direction. In the radial direction, the fixed end of the cantilever arm 700 is disposed near the first through hole 1212, and the multiple cantilever arms 700 are disposed around the first through hole 1212. Figure 3 The diagram illustrates three evenly distributed cantilever arms 700, one of which is located on the main cantilever arm 600. The first protrusion on the cantilever arm 700 is the first protrusion point 710. Figure 4 As shown, the second protruding structure also includes a ring-shaped second periosteal bone 250, as... Figure 5 and Figure 7 As shown, the first protrusion 710 abuts against the second rib 250. As described above, in the first embodiment, the pre-pressure on the main cantilever 600 is achieved by the cooperation of multiple second protrusions 240 at the bottom of the key body 200 with the first rib 610 on the main cantilever 600, and the pre-pressure on the support cantilever 700 is achieved by the cooperation of the second rib 250 at the bottom of the key body 200 with the first protrusion 710 on the support cantilever 700. With this configuration, the force on the keycap 210 and the cantilever structure is more even, and the movement of the keycap 210 is smoother and more fluid.

[0042] In addition, to further ensure more even force distribution on the keycap 210 and the cantilever structure, and to facilitate the processing of the key body 200 and the bottom wall 1211, preferably, as follows: Figure 3 As shown, the three first protrusions 710 and the three second through holes 1213 are on the same circle, and as... Figure 4As shown, the three claws 230 and the second circumference 250 are on the same circle.

[0043] The usage process is as follows: In the initial state, the multiple second protrusions 240 on the bottom of the button body 200 cooperate with the first rib 610 on the main cantilever 600 to pre-press the main cantilever 600, and the second rib 250 on the bottom of the button body 200 cooperates with the first protrusion 710 on the support cantilever 700 to pre-press the support cantilever 700 (the pre-press size can be 0.1mm), so that the button body 200 remains elastic within the designed receiving groove 121.

[0044] During use, when the keycap 210 is subjected to external force, the key body 200 further presses the main cantilever 600 and the support cantilever 700, causing the key post 220 to move toward the tactile switch 300 to press the spring of the tactile switch 300 and make it conductive; when the external force is removed, the keycap 210 can be reset under the action of the main cantilever 600 and the support cantilever 700.

[0045] Because of the design of the main cantilever 600 and the supporting cantilever 700, in the pre-compression state, the main cantilever 600 and the supporting cantilever 700 (and the key body 200) are in an "energy storage" state. When the user presses the key body 200, the main cantilever 600 and the supporting cantilever 700 are further compressed. The elastic force of the compression will form a reverse resistance, giving the user a crisp feel and a smooth, silky experience. After releasing, the elastic force of the compression will quickly push the keycap 210 back to its original position, preventing the key body 200 from getting stuck.

[0046] Additionally, in the first embodiment, as Figure 2 and Figure 7 As shown, the button structure also includes a circuit module 500, which can be a PCM board (a PCM board is a collection of PCB boards and various components and connectors). The circuit module 500 is fixedly connected to the front cover 100 by screws 400, and the circuit module 500 is electrically connected to the side of the tactile switch 300 opposite to the button body 200. With this configuration, the circuit module 500 not only provides support for the tactile switch 300 but also facilitates electrical connection with external energy storage products. For example, when the button structure of this application is applied to an energy storage product, it can be electrically connected to the energy storage product through the circuit module 500.

[0047] Additionally, in the first embodiment, as Figure 1 and Figure 2 As shown, the faceplate 100 includes a shell body 110 and a boss 120 protruding relative to the shell body 110, with a receiving groove 121 formed on the boss 120. With this configuration, the button body 200 is better suited for use in the product, and its appearance is more prominent.

[0048] like Figures 8 to 12 As shown, in the second embodiment, similarly, the key body 200 also includes a latch 230, which is connected to the side of the keycap 210 facing the bottom wall 1211, as shown. Figure 9 and Figure 12 As shown, the bottom wall 1211 has a second through hole 1213 for the claw 230 to pass through. A hook is provided at the end of the claw 230 away from the keycap 210. The hook engages with the side of the bottom wall 1211 opposite to the keycap 210, so that the keycap 210 pre-compresses the elastic element. Preferably, as shown... Figure 10 and Figure 12 As shown, the key post 220 is connected to the middle of the keycap 210, the first through hole 1212 is opened in the middle of the bottom wall 1211, and the number of second through holes 1213 is multiple. Figure 9 The diagram illustrates three second through holes 1213 (evenly distributed), with multiple second through holes 1213 surrounding the first through hole 1212. This arrangement results in more even force distribution on the keycap 210 and the elastic element, leading to smoother and more fluid movement of the keycap 210.

[0049] In the second embodiment, as Figure 8 and Figure 12 As shown, the elastic element is an annular elastic pad 800, which is press-fitted between the bottom wall 1211 and the keycap 210. That is, the elastic pad 800 is pre-pressed by the keycap 210 and the bottom wall 1211.

[0050] In the second embodiment, preferably, as follows: Figure 9 As shown, an annular groove 1214 is provided between the bottom wall 1211 and the surrounding wall of the receiving groove 121. The elastic element is limited within the annular groove 1214. This arrangement prevents the elastic pad 800 from shifting during use.

[0051] Furthermore, in the second embodiment, to further prevent the elastic pad 800 from shifting position during use, as follows... Figure 10 and Figure 12 As shown, the key body 200 also includes an annular second rib 250, which is connected to the side of the keycap 210 facing the bottom wall 1211. There is a gap between the second rib 250 and the edge of the keycap 210 to limit the elastic element.

[0052] The usage process is as follows: In the initial state, the button body 200 pre-presses the elastic pad 800 (the pre-press size can be 0.1mm), so that the button body 200 remains elastic within the designed receiving groove 121.

[0053] During use, when the keycap 210 is subjected to external force, the key body 200 further compresses the elastic pad 800, causing the key post 220 to move toward the tactile switch 300 to compress the spring of the tactile switch 300 and make it conductive; when the external force is removed, the keycap 210 can be reset under the action of the elastic pad 800.

[0054] Because of the design of the elastic pad 800, in the pre-compression state, the elastic pad 800 (and the key body 200) are in an "energy-storing" state. When the user presses the key body 200, the elastic pad 800 is further compressed. The compressive elastic force creates reverse resistance, giving the user a crisp feel and a smooth, silky experience. After releasing, the compressed elastic force quickly pushes the keycap 210 back to its original position, preventing the key body 200 from getting stuck.

[0055] Similarly, in the second embodiment, as Figure 8 and Figure 12 As shown, the button structure also includes a circuit module 500, which can be a PCM board (a collection of PCB boards and various components and connectors). The circuit module 500 is fixedly connected to the front cover 100 by screws 400, and the circuit module 500 is electrically connected to the side of the tactile switch 300 opposite to the button body 200.

[0056] Similarly, in the second embodiment, the faceplate 100 includes a shell body 110 and a boss 120 protruding relative to the shell body 110, with a receiving groove 121 formed on the boss 120. This configuration makes the button body 200 more suitable for various product applications and allows it to stand out more visually.

[0057] In summary, the button structures designed in both the first and second embodiments of this application have reverse pre-pressure, resulting in a crisp and light button feel, a smooth and silky user experience, and the elimination of button jamming issues.

[0058] In addition, the design of the claw structure for pre-pressing fixation saves space in the button structure design, and the claw structure will not fall off after assembly.

[0059] In addition, the first and second embodiments of this application are simple to assemble and highly practical.

[0060] Assembly process of the first embodiment: The main cantilever 600 and the supporting cantilever 700 structure are designed for the assembly position of the face shell 100. After the claw 230 is assembled, the main cantilever 600 and the supporting cantilever 700 are adjusted in size to form a pre-pressure on the button body 200, so that the button body 200 maintains elasticity within the designed reserved space; then the PCM board is assembled and the screws 400 are screwed in to complete the assembly.

[0061] Assembly process of the second embodiment: The faceplate 100 is designed with a receiving groove 121, and the elastic pad 800 (e.g., a soft silicone pad) is assembled in the corresponding position. After size adjustment, the elastic pad 800 forms a pre-pressure on the button body 200, so that the button body 200 maintains elasticity within the designed reserved space; then the PCM board is assembled and the screws 400 are screwed in to complete the assembly.

[0062] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the scope of the technology disclosed in this application, or make equivalent substitutions for some of the technical features. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application.

Claims

1. A key structure characterized by comprising: The button structure includes a faceplate, a button body, and a tactile switch; the button body includes a keycap and a push button. The faceplate has a receiving groove for mounting the keycap, and the bottom wall of the receiving groove has a first through hole; The tactile switch is located on the side of the bottom wall opposite to the keycap, and the push post is connected to the side of the keycap facing the bottom wall. The push post passes through the first through hole and is positioned directly opposite the spring of the tactile switch. An elastic element is provided on the bottom wall, and the keycap abuts against the elastic element. In the free state of the keycap, the elastic element is in a compressed state. When the keycap is subjected to an external force, the push post can move toward the tactile switch to press the spring of the tactile switch; when the external force is removed, the keycap can be reset under the action of the elastic element.

2. The key structure according to claim 1, wherein The key body also includes a latch, which is connected to the side of the keycap facing the bottom wall; The bottom wall has a second through hole for the claw to pass through. The end of the claw away from the keycap is provided with a hook. The hook engages with the side of the bottom wall opposite to the keycap, so that the keycap squeezes the elastic element.

3. The key structure according to claim 2, wherein The push post is connected to the middle of the keycap, and the first through hole is opened in the middle of the bottom wall; The number of second through holes is multiple, and the multiple second through holes are arranged around the first through hole.

4. The key structure according to claim 2 or 3, characterized in that, The elastic element is a cantilever structure formed on the bottom wall, and the cantilever structure is part of the bottom wall and is integrally formed with the bottom wall; The cantilever structure includes a fixed end and a suspended end that are opposite to each other. The cantilever structure also includes a first protrusion structure, which is connected to the side of the suspended end of the cantilever structure facing the keycap. The key body also includes a second protruding structure, which is connected to the side of the keycap facing the bottom wall, and the second protruding structure abuts against the first protruding structure.

5. The button structure according to claim 4, characterized in that, The cantilever structure includes a main cantilever, the receiving groove is a circular groove, and the main cantilever includes a fixed end and a suspended end that are opposite to each other in the radial direction of the receiving groove. The suspended end of the main cantilever is located in the middle of the bottom wall. The first through hole is opened at the suspended end of the main cantilever. The first protrusion structure on the main cantilever is a ring-shaped first rib. The first rib is formed on the side of the first through hole facing the keycap and is arranged around the edge of the first through hole. The second protrusion structure includes a second protrusion, which is connected to the outer edge of the push post and abuts against the first surrounding bone.

6. The key structure according to claim 5, wherein The cantilever structure also includes multiple cantilever arms, each cantilever arm having a fixed end and a suspended end that are opposite to each other in the radial direction. In the radial direction, the fixed end of the cantilever arm is disposed close to the first through hole, and the multiple cantilever arms are disposed around the first through hole. The first protrusion on the cantilever is the first protrusion point; The second protrusion structure also includes a ring-shaped second periphery, and the first protrusion abuts against the second periphery.

7. The key structure according to claim 2 or 3, wherein The elastic element is a ring-shaped elastic pad; The elastic element is press-fitted between the bottom wall and the keycap.

8. The key structure according to claim 7, wherein An annular groove is provided between the bottom wall and the surrounding wall of the receiving groove, and the elastic element is limited within the annular groove.

9. The key structure according to claim 7, wherein The key body also includes a ring-shaped second rib, which is connected to the side of the keycap facing the bottom wall. The second rib has a gap with the edge of the keycap to limit the elastic element.

10. The key structure according to claim 1, wherein The button structure also includes a circuit module; The circuit module is fixedly connected to the faceplate, and the circuit module is electrically connected to the side of the tactile switch opposite to the button body.

11. The key structure according to claim 1, wherein The shell includes a shell body and a boss protruding relative to the shell body, and the receiving groove is formed on the boss.

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