Key assembly and electronic equipment

Abstract

The utility model discloses a key assembly and electronic equipment. The key assembly has a first direction and a second direction which are perpendicular to each other, and comprises a key plate, an elastic piece and a key cap which are sequentially arranged in a stacked mode in the first direction. Wherein a switch element is arranged on the key board, the elastic piece comprises a base body, a first elastic supporting body and at least one second elastic supporting body, the first elastic supporting body and the second elastic supporting body are arranged on the side, close to the key cap, of the base body, and the first elastic supporting body and the second elastic supporting body are arranged in a spaced mode in the second direction; the first elastic supporting bodies are used for supporting the key caps and providing resilience force for the key caps at the same time, the projection of the first elastic supporting bodies in the first direction falls on the switch element, and the first elastic supporting bodies are arranged to move downwards in the first direction when the key caps are subjected to external pressing force and trigger the switch element.

Description

Technical Field

[0001] This application relates to the technical field of electronic information, specifically the design of a button assembly and an electronic device. Background Technology

[0002] Electronic devices typically include button components to allow users to control them. When these button components are relatively large, improving the trigger rate when pressing the edge of the button is a pressing technical problem that needs to be solved. Utility Model Content

[0003] This application provides a button assembly having a first direction and a second direction perpendicular to each other, and including a button plate, an elastic element, and a button cap stacked sequentially along the first direction; wherein, a switch element is provided on the button plate, and the elastic element includes a base, a first elastic support, and at least one second elastic support. The first and second elastic supports are disposed on the side of the base near the button cap, and the first and second elastic supports are spaced apart along the second direction to support the button cap respectively and provide a rebound force to the button cap. The projection of the first elastic support along the first direction falls on the switch element, and the first elastic support is configured to move downward along the first direction when the button cap is subjected to external pressure, thereby triggering the switch element.

[0004] In some embodiments, the switching element can provide a tactile feedback to the button assembly; when the first elastic support and the second elastic support have the same downward travel along the first direction, the rebound force provided by the first elastic support is less than the rebound force provided by the second elastic support.

[0005] In some embodiments, the first elastic support includes a first support block and a first elastic wall, the first elastic wall surrounding the first support block and connecting the first support block to a base, the first support block supporting a keycap, and the first elastic wall providing a rebound force; the second elastic support includes a second support block and a second elastic wall, the second elastic wall surrounding the second support block and connecting the second support block to a base, the second support block supporting a keycap, and the second elastic wall providing a rebound force; the thickness of the first elastic wall is less than the thickness of the second elastic wall; and / or, both the first elastic wall and the second elastic wall are made of silicone, and the hardness of the silicone used to form the first elastic wall is less than the hardness of the silicone used to form the second elastic wall.

[0006] In some embodiments, the first elastic support includes a first support block and a first elastic wall, the first elastic wall surrounding the first support block and connecting the first support block to the base, the first support block supporting the keycap, and the first elastic wall providing a rebound force; the second elastic support includes a second support block and a second elastic wall, the second elastic wall surrounding the second support block and connecting the second support block to the base, the second support block supporting the keycap, and the second elastic wall providing a rebound force; on a reference section passing through the central axis of the first elastic wall, a first reference line passing through both ends of the inner contour line of the first elastic wall on one side of the central axis of the first elastic wall forms a first angle with the main surface of the keypad; on a reference section passing through the central axis of the second elastic wall, a second reference line passing through both ends of the inner contour line of the second elastic wall on one side of the central axis of the second elastic wall forms a second angle with the main surface of the keypad; the first angle is smaller than the second angle.

[0007] In some embodiments, when the button cap is not subjected to external pressing pressure, the first spring wall is arranged in a flat plate shape parallel to the main surface of the button plate, and the second spring wall is arranged in a tapering cylindrical shape in the direction from the base to the second support block.

[0008] In some embodiments, the second bullet wall is arranged in an arc shape on a reference section passing through the central axis of the second bullet wall.

[0009] In some embodiments, the elastic member abuts against the keypad via a base and against the keycap via a first elastic support and a second elastic support; the base is provided with a first opening and at least one second opening, the first elastic support covers the first opening and protrudes toward the side near the keycap to form a first deformation cavity on the side away from the keycap, the second elastic support covers the corresponding second opening and protrudes toward the side near the keycap to form a second deformation cavity on the side away from the keycap; a connecting port is provided on the base between the first opening and the second opening, the connecting port being used to connect the first deformation cavity and the second deformation cavity.

[0010] In some embodiments, when the button cap is not subjected to external pressing force, the first deformation cavity and the second deformation cavity are connected to each other.

[0011] In some embodiments, when the button cap is not subjected to external pressing force, the button cap forms a pre-compression on the first elastic support, and the pre-compression degree of the second elastic support is less than that of the first elastic support.

[0012] In some embodiments, the button assembly further includes a third direction, which is perpendicular to the first direction and the second direction, and the dimension of the button assembly along the second direction is larger than the dimension of the button assembly along the third direction; in the second direction, the first elastic support is closer to the center of the button assembly than the second elastic support.

[0013] In some embodiments, the number of second elastic supports is two, the two second elastic supports are spaced apart along a second direction, and the first elastic support is disposed between the two second elastic supports.

[0014] In some embodiments, in the second direction, the ratio of the length of the longest line connecting the two second elastic supports to the length of the keycap is between 0.6 and 1.

[0015] In another aspect, this application provides an electronic device, including a housing and a first button assembly, wherein the first button assembly is the button assembly described in any of the above embodiments, the housing is provided with a mounting groove, and the first button assembly is disposed in the mounting groove.

[0016] In some embodiments, the electronic device further includes a circuit board; the housing encloses an installation space, the circuit board is disposed within the installation space, the mounting groove is a blind groove disposed on the side wall of the housing, and the switching element is electrically connected to the circuit board through a wire hole disposed at the bottom of the blind groove.

[0017] In some embodiments, the electronic device further includes a button cover, which is disposed on the opening end of the mounting groove and has a third opening. The button cap includes a pressing body and a limiting part. The pressing body includes a first surface and a second surface disposed opposite to each other. The first surface is supported by an elastic member, and the second surface is exposed through the third opening. The limiting part is disposed on the outer periphery of the pressing body and extends outward. When the button cap is not subjected to external pressing force, the button cover presses the limiting part in the direction toward the button plate, and the elastic member supports the pressing body in the direction away from the button plate.

[0018] In some embodiments, the electronic device further includes a second button assembly disposed in a mounting slot, and a fourth opening is provided on the button cover, at least a portion of the second button assembly being exposed through the fourth opening, and the second button assembly sharing an elastic element with the first button assembly.

[0019] In this application, the elastic element includes a first elastic support and a second elastic support spaced apart. The switch element on the keypad is positioned corresponding to the first elastic support. When a downward pressing force is applied to the position corresponding to the first elastic support, the switch element is easily triggered. Furthermore, since the second elastic support is spaced apart from the first elastic support and is an independent module, even when a downward pressing force is applied to the position corresponding to the second elastic support, the second elastic support can move downwards as a whole after being pressed. This allows the pressing force applied to the keycap to effectively act on the first elastic support, causing the first elastic support to move downwards, thereby easily triggering the switch element. Therefore, this application's solution has lower requirements for the pressing position. When the second elastic support is positioned corresponding to the edge of the keycap, even pressing that edge position can smoothly trigger the switch element, which helps improve the key trigger rate. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the electronic device of this application;

[0022] Figure 2 yes Figure 1 An exploded view of an electronic device in China;

[0023] Figure 3 yes Figure 1 A cross-sectional view of the first button component along AA;

[0024] Figure 4 It shows Figure 1 An exploded view of the first button component;

[0025] Figure 5 This is a schematic diagram of another embodiment of the elastic element in this application;

[0026] Figure 6 It shows Figure 1 Partial structure of the first button component;

[0027] Figure 7 The diagram shows a partial structure of the button component in the relevant scheme;

[0028] Figure 8 It is a schematic diagram of the compression load curve;

[0029] Figure 9 yes Figure 2 Cross-sectional schematic diagram of the elastic element;

[0030] Figure 10 This is a cross-sectional schematic diagram of another embodiment of the elastic element in this application. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] like Figures 1 to 2 As shown, Figure 1 This is a schematic diagram of the structure of an embodiment of the electronic device 1 of this application. Figure 2 yes Figure 1 An exploded view of an electronic device 1. This application provides an electronic device 1, which includes a housing 10 and a first button assembly 20. The housing 10 has a mounting groove 121, and the first button assembly 20 is disposed within the mounting groove 121.

[0033] For example, electronic device 1 may be a walkie-talkie. Housing 10 may include a bottom wall 11 and side walls 12 surrounding the bottom wall 11. The bottom wall 11 and side walls 12 together enclose a mounting space 13, such as... Figure 2 As shown, the electronic device 1 may further include other components such as a circuit board 40 disposed within the mounting space 13.

[0034] In some embodiments, such as Figure 2 As shown, the mounting groove 121 is a blind groove provided on the side wall 12 of the housing 10, and the first button assembly 20 is disposed in the mounting groove 121. The mounting groove 121 is a blind groove, which makes the mounting groove 121 separate from the mounting space 13 inside the housing 10, thereby preventing moisture from entering the mounting space 13 through the mounting groove 121 and causing adverse effects on electronic components such as the circuit board 40 disposed in the mounting space 13.

[0035] In some embodiments, such as Figure 2 As shown, the electronic device 1 may further include a button cover 30, which is used to press and fix the first button assembly 20 in the mounting groove 121.

[0036] Next, the structure of the first button assembly 20 will be described in detail.

[0037] like Figure 3 As shown, Figure 3 yes Figure 1The first button assembly 20 is shown in a cross-sectional view along AA. The first button assembly 20 has a first direction Z and a second direction X that are perpendicular to each other, and includes a button plate 21, an elastic element 22, and a button cap 23 stacked sequentially along the first direction Z. The button plate 21 is provided with a switching element 211. The elastic element 22 includes a base 221, a first elastic support 222, and at least one second elastic support 223. The first elastic support 222 and the second elastic support 223 are disposed on the side of the base 221 near the button cap 23. The first elastic support 222 and the second elastic support 223 are spaced apart along the second direction X to support the button cap 23 and provide a rebound force to it. The projection of the first elastic support 222 along the first direction Z falls on the switching element 211, and is configured to move downward along the first direction Z when the button cap 23 is subjected to external pressure, triggering the switching element 211. In the description of this application, the term "rebound force" refers to the rebound force provided to the button cap in the first direction Z.

[0038] like Figure 1 and Figure 3 As shown, the first button assembly 20 also includes a third direction Y, which is perpendicular to the first direction Z and the second direction X. The dimension of the first button assembly 20 along the second direction X is larger than the dimension of the first button assembly 20 along the third direction Y. That is, the first button assembly 20 is generally elongated, where the second direction X can be understood as the length direction, and the third direction Y can be understood as the width direction. The first direction Z can be understood as the thickness direction. In some embodiments, in the second direction X, the first elastic support 222 may be closer to the center of the first button assembly 20 than the second elastic support 223.

[0039] The button cap 23 may be made of plastic and is used to receive external pressing pressure. The elastic element 22 may be made of silicone and may be integrally molded to support the button cap 23 and provide a rebound force. The switching element 211 on the button plate 21 may be electrically connected to the circuit board 40 within the mounting space 13.

[0040] like Figure 4 As shown, Figure 4 It shows Figure 1 The exploded view of the first button component 20 shows that there can be two second elastic supports 223 and one first elastic support 222. The two second elastic supports 223 are spaced apart along the second direction X, and the first elastic support 222 is disposed between the two second elastic supports 223.

[0041] like Figure 3As shown, in the second direction X, the ratio of the length L1 of the longest line connecting the two second elastic supports 223 to the length L2 of the keycap 23 can be between 0.6 and 1 to provide sufficient support for the keycap 23 and reduce the possibility of the keycap 23 wobbling. For example, the ratio of the length L1 of the longest line connecting the two second elastic supports 223 to the length L2 of the keycap 23 can be 0.6, 0.7, 0.85, 0.9, or 0.95, etc., and this application does not limit this; those skilled in the art can choose according to actual needs. In the description of this application, "between A and B" includes endpoint A and endpoint B.

[0042] like Figure 5 As shown, Figure 5 This is a schematic diagram of another embodiment of the elastic element 22 of this application. In some embodiments, the first button assembly 20 may also be circular in shape, and there may be one first elastic support 222, located at the center of the first button assembly 20, with several second elastic supports 223 surrounding the first elastic support 222. For example, there may be four second elastic supports 223 surrounding the first elastic support 222. Of course, this application does not impose a specific limitation on the specific number of second elastic supports 223, and those skilled in the art can choose according to actual needs.

[0043] The following will combine Figure 6 and Figure 7 , Figure 6 It shows Figure 1 Partial structure of the first button component 20 in the middle, Figure 7 The diagram illustrates a portion of the button component structure in a related solution, and provides a detailed description of the technical effects of this application. It should be noted that, although... Figure 6 and Figure 7 The button components shown are all elongated. This application does not limit the shape of the first button component 20. It can be circular, upright, regular or irregular hexagon. This application does not limit it. Those skilled in the art can choose according to actual needs.

[0044] Figure 7 In the button assembly shown, the elastic element 22 has only one elastic support 222', which is elongated to provide sufficient support for the button cap 23 and prevent it from wobbling. The switch element 211 is positioned at the middle of the elastic support 222' (the middle part described here refers to the midpoint in the length direction). When a downward pressing force F1 is applied to the uppermost end of the button cap 23, the uppermost end B of the elastic support 222' deforms and moves downward, causing the middle part of the elastic support 222' to move downward a distance S1.

[0045] Figure 6 In the first button assembly 20 shown, the elastic element 22 is provided with a first elastic support 222 and two second elastic supports 223. The two second elastic supports 223 are spaced apart along the second direction X. The first elastic support 222 is disposed between the two second elastic supports 223 to provide sufficient support for the button cap 23 and prevent the button cap 23 from shaking. The switch element 211 is disposed corresponding to the first elastic support 222 in the middle. When an equal pressing force F1 is applied to the uppermost end of the button cap 23, the uppermost second elastic support 223 deforms and moves downward, causing the first elastic support 222 in the middle to move downward by a distance S2.

[0046] When an equal pressing force F1 is applied to the top of the button cap 23, Figure 6 The downward movement distance S2 in the first button component 20 shown will be greater than Figure 7 The downward movement distance S1 in the button assembly shown. Therefore, when an equal pressing force F1 is applied to the edge of the button cap 23, Figure 6 The first button assembly 20 shown is compared to Figure 7 The button components shown are easier to trigger. The reason is that... Figure 6 In the first button assembly 20 shown, the second elastic support 223 is spaced apart from the first elastic support 222 and is an independent module. When a pressing force F1 is applied to the uppermost end of the button cap 23, the uppermost second elastic support 223 can move down as a whole after being pressed. In this way, the pressing force applied to the button cap 23 is more likely to act on the first elastic support 222 in the middle, causing the first elastic support 222 to move down more, thereby making it easier to trigger the switch element 211.

[0047] In this application, the elastic element 22 includes a first elastic support 222 and a second elastic support 223 spaced apart. The switch element 211 on the keypad 21 is positioned corresponding to the first elastic support 222. When a downward pressing force is applied to the position corresponding to the first elastic support 222, the switch element 211 is easily triggered. Furthermore, since the second elastic support 223 is spaced apart from the first elastic support 222 and is an independent module, even when a downward pressing force is applied to the position corresponding to the second elastic support 223, the second elastic support 223 can move downward as a whole after being pressed, so that the pressing force applied to the keycap 23 can effectively act on the first elastic support 222, causing the first elastic support 222 to move downward, thereby easily triggering the switch element 211. Therefore, the solution of this application has low requirements for the pressing position. When the second elastic support is positioned corresponding to the edge of the keycap, even pressing the edge position can smoothly trigger the switch element 211, which is beneficial to improving the key triggering rate.

[0048] In some embodiments, the switching element 211 can provide a tactile feedback to the first button assembly 20. When the first elastic support 222 and the second elastic support 223 have the same downward travel along the first direction Z, the rebound force provided by the first elastic support 222 is less than the rebound force provided by the second elastic support 223.

[0049] For example, the switching element 211 can be a dome switch; however, this application does not limit this, and those skilled in the art can choose according to actual needs. The tactile feedback is closely related to the feel value (i.e., click value) obtained based on the press load curve. The click value is equal to the ratio of the difference between the peak and trough values ​​in the press load curve to the peak value. The larger the click value, the better the tactile feedback when the user presses the button component.

[0050] like Figure 8 As shown, Figure 8 This is a schematic diagram of the pressure load curve. When a downward pressing force is applied to the center of the button cap 23, the button assembly will exhibit the following behavior: Figure 8 The pressing load curve is shown. Figure 8 As shown by curve Q1, when the first elastic support 222 provides a small rebound force, the difference between the peak and trough values ​​is relatively large, and the click value is relatively large, resulting in a better tactile feedback in the middle of the first button assembly 20. In other words, the tactile feedback provided by the switch element 211 can be transmitted outward to the pressing experience. Figure 8 As shown in curve Q2, when the rebound force provided by the first elastic support 222 increases, the difference between the peak and valley values ​​decreases, the click value is relatively small, and the paragraph feel deteriorates.

[0051] This application sets the rebound force provided by the first elastic support 222 to be less than that provided by the second elastic support 223, so that the first elastic support 222 has a relatively small rebound force, thereby the tactile feedback provided by the switch element 211 can be transmitted outward to the pressing experience, which is beneficial to improving the tactile feedback of the middle part of the first button assembly 20. On the other hand, the second elastic support 223 has a relatively large rebound force, thereby ensuring that the first button assembly 20 as a whole can generate sufficient rebound force, ensuring the elastic feel of the first button assembly 20.

[0052] like Figure 9 As shown, Figure 9 yes Figure 3 A cross-sectional schematic diagram of the elastic element 22. In some embodiments, the first elastic support 222 includes a first support block 2221 and a first spring wall 2222. The first spring wall 2222 surrounds the first support block 2221 and connects the first support block 2221 to the base 221. The first support block 2221 supports the button cap 23, and the first spring wall 2222 provides a rebound force. The second elastic support 223 includes a second support block 2231 and a second spring wall 2232. The second spring wall 2232 surrounds the second support block 2231 and connects the second support block 2231 to the base 221. The second support block 2231 supports the button cap 23, and the second spring wall 2232 provides a rebound force.

[0053] The rebound force provided by the first elastic wall 2222 and the second elastic wall 2232 is affected by factors such as thickness, material, and shape. For example, with a fixed material and shape, the thicker the elastic wall, the greater the rebound force. Furthermore, with a fixed thickness and shape, the greater the hardness of the silicone used to form the elastic wall, the greater the rebound force. Finally, with a fixed material and thickness, the shape of the elastic wall becomes the main factor affecting the rebound force.

[0054] In some embodiments, the first elastic wall 2222 and the second elastic wall 2232 are formed of the same type of silicone material, and their shapes are substantially the same. For example, the elastic element 22 is integrally molded from the same type of silicone material. In this case, the substrate 221, the first elastic support 222, and the second elastic support 223 are all formed of the same type of silicone material. The thickness of the first elastic wall 2222 can be less than the thickness of the second elastic wall 2232, so that the rebound force provided by the first elastic support 222 is less than the rebound force provided by the second elastic support 223.

[0055] In some embodiments, the thickness of the first elastic wall 2222 is the same as the thickness of the second elastic wall 2232, and their shapes are approximately the same. For example, the first elastic support 222 and the second elastic support 223 can be formed of silicone of different materials, so that the materials of the first elastic wall 2222 and the second elastic wall 2232 are different. The hardness of the silicone used to form the first elastic wall 2222 can be less than the hardness of the silicone used to form the second elastic wall 2232, so that the rebound force provided by the first elastic support 222 is less than the rebound force provided by the second elastic support 223.

[0056] In some embodiments, the first elastic wall 2222 and the second elastic wall 2232 have approximately the same shape. The thickness of the first elastic wall 2222 may be less than the thickness of the second elastic wall 2232, and the hardness of the silicone used to form the first elastic wall 2222 may be less than the hardness of the silicone used to form the second elastic wall 2232, so that the rebound force provided by the first elastic support 222 is less than the rebound force provided by the second elastic support 223.

[0057] In some embodiments, the thickness of the first elastic wall 2222 is the same as the thickness of the second elastic wall 2232, and the first elastic wall 2222 and the second elastic wall 2232 are formed of the same type of silicone material and have the same hardness. The shape of the first elastic wall 2222 may be different from the shape of the second elastic wall 2232 so that the rebound force provided by the first elastic support 222 is less than the rebound force provided by the second elastic support 223.

[0058] like Figure 9 and Figure 10 As shown, on a reference section passing through the central axis C1 of the first elastic wall 2222, on one side of the central axis C1 of the first elastic wall 2222, the first reference line N1 passing through both ends of the inner contour line of the first elastic wall 2222 forms a first angle with the main surface N0 of the keypad 21; on a reference section passing through the central axis C2 of the second elastic wall 2232, on one side of the central axis C2 of the second elastic wall 2232, the second reference line N2 passing through both ends of the inner contour line of the second elastic wall 2232 forms a second angle with the main surface N0 of the keypad 21; by setting the first angle to be smaller than the second angle, the rebound force provided by the first elastic support 222 is less than the rebound force provided by the second elastic support 223.

[0059] It should be noted that when the first reference line N1 is perpendicular to the main surface N0 of the keypad 21, the first included angle is 90°; when the first reference line N1 is parallel to the main surface N0 of the keypad 21, the first included angle is 0°; when the first reference line N1 intersects with the main surface N0 of the keypad 21 but is not perpendicular, the first included angle is the acute angle formed by the first reference line N1 and the main surface N0 of the keypad 21. Similarly, when the second reference line N2 is perpendicular to the main surface N0 of the keypad 21, the second included angle is 90°; when the second reference line N2 is parallel to the main surface N0 of the keypad 21, the second included angle is 0°; when the second reference line N2 intersects with the main surface N0 of the keypad 21 but is not perpendicular, the second included angle is the acute angle formed by the second reference line N2 and the main surface N0 of the keypad 21.

[0060] like Figure 9 and Figure 10 As shown, when the button cap 23 is not subjected to external pressure, the first spring wall 2222 is arranged in a flat plate shape parallel to the main surface N0 of the button plate 21, and the second spring wall 2232 is arranged in a tapering cylindrical shape from the base 221 to the second support block 2231. At this time, the first included angle is 0°, and the second included angle is as shown. Figure 9 and Figure 10 The β angle is shown in the figure. By setting the first included angle to be smaller than the second included angle, the rebound force provided by the first elastic support 222 is less than the rebound force provided by the second elastic support 223.

[0061] For example, the second spring wall 2232 can be arranged in a reduced cylindrical shape, or it can be arranged in an irregularly shaped cylindrical shape. When the second spring wall 2232 is arranged in an irregularly shaped cylindrical shape, the central axis C2 of the second spring wall 2232 can refer to the central axis of a reference cylinder that can be inserted into the cylindrical structure and is not easily dislodged from the cylindrical structure. The definition of the central axis C1 of the first spring wall 2222 can be the same as or similar to the central axis C2 of the second spring wall 2232. As is easily understood by those skilled in the art, it will not be elaborated here.

[0062] like Figure 9 As shown, on the reference section passing through the central axis C2 of the second projectile wall 2232, the second projectile wall 2232 can be arranged in an arc shape. For example... Figure 10 As shown, on the reference section passing through the central axis C2 of the second projectile wall 2232, the second projectile wall 2232 can also be an inclined straight wall.

[0063] Compared to Figure 10 The second bullet wall 2232 shown in the figure, Figure 9The arc-shaped second elastic wall 2232 has the following advantages: on the one hand, it can provide greater rebound force in the first direction Z; on the other hand, when the edge of the second elastic wall 2232 is compressed and deformed, the deformation is more easily transmitted along the circumference of the second elastic wall 2232, allowing the second elastic support 223 to move downward as a whole, which helps reduce the possibility of the second elastic support 223 tilting to one side. When the second elastic support 223 tilts to one side, it will cause the other side to tilt upward, dispersing the pressing force applied to the first elastic support 222, which is not conducive to pushing the first elastic support 222 downward.

[0064] In some embodiments, the first spring wall 2222 is arranged in the form of a flat plate parallel to the main surface N0 of the keypad 21, in which case the first included angle is 0°; on the reference section passing through the central axis C2 of the second spring wall 2232, the second spring wall 2232 can be a straight wall arranged along the first direction Z, in which case the second included angle is 90°. This application does not specifically limit the specific shape of the first spring wall 2222 and the second spring wall 2232, as long as the rebound force provided by the first spring wall 2222 is less than the rebound force provided by the second spring wall 2232.

[0065] Please continue reading. Figure 9 The elastic element 22 abuts against the keypad 21 via the base 221 and against the keycap 23 via the first elastic support 222 and the second elastic support 223. The base 221 is provided with a first opening 2211 and at least one second opening 2212. The first elastic support 222 covers the first opening 2211 and protrudes toward the side closer to the keycap 23 to form a first deformation cavity 2223 on the side away from the keycap 23. The second elastic support 223 covers the corresponding second opening 2212 and protrudes toward the side closer to the keycap 23 to form a second deformation cavity 2233 on the side away from the keycap 23. A connecting port 2213 is provided on the base 221 located between the first opening 2211 and the second opening 2212. The connecting port 2213 is used to connect the first deformation cavity 2223 and the second deformation cavity 2233. The first deformation cavity 2223 is formed by the first elastic support 222, the base 221, and the keypad 21; the second deformation cavity 2233 is formed by the second elastic support 223, the base 221, and the keypad 21.

[0066] This application sets the first deformation cavity 2223 and the second deformation cavity 2233 to be connected to each other, so that the first elastic support 222 and the second elastic support 223 can quickly rebound after being deformed by pressure, which is beneficial to improving the elastic feel of the first button assembly 20.

[0067] Please continue reading. Figure 3When the button cap 23 is not subjected to external pressure, it applies pre-compression to the first elastic support 222, while the pre-compression of the second elastic support 223 is less than that of the first elastic support 222. For example, when the button cap 23 is not subjected to external pressure, the second elastic support 223 may just come into contact with the button cap 23 without applying pre-compression. This application, by setting the button cap 23 to apply pre-compression to the first elastic support 222, helps to reduce the possibility of the button cap 23 wobbling in the first direction Z.

[0068] Please refer to section 2. In some embodiments, the mounting groove 121 is a blind groove provided on the side wall 12 of the housing 10, and the switching element 211 is electrically connected to the circuit board 40 through a wire hole 122 provided at the bottom of the blind groove. For details, please refer to section 2 as well. Figure 2 and Figure 4 The switching element 211 can be electrically connected to the circuit board 40 disposed in the mounting space 13 via the flexible circuit board 212 passing through the wire hole 122.

[0069] Please refer to the following: Figure 2 and Figure 3 In some embodiments, the electronic device 1 further includes a button cover 30, which covers the opening end of the mounting groove 121 and has a third opening 31. The button cap 23 includes a pressing body 231 and a limiting part 232, which may be integrally formed. The pressing body 231 includes a first surface 2311 and a second surface 2312 disposed opposite to each other. The first surface 2311 is supported by an elastic member 22, and the second surface 2312 is exposed through the third opening 31 to receive external pressing pressure. The limiting part 232 is disposed on the outer periphery of the pressing body 231 and extends outward. When the button cap 23 is not subjected to external pressing pressure, the button cover 30 presses the limiting part 232 in the direction toward the button plate 21, and the elastic member 22 supports the pressing body 231 in the direction away from the button plate 21 to prevent the button cap 23 from shaking in the first direction Z.

[0070] In some embodiments, such as Figure 1 As shown, the electronic device 1 also includes a second button assembly 50 disposed within the mounting slot 121. A fourth opening 32 is also provided on the button cover 30, through which at least a portion of the second button assembly 50 is exposed. The second button assembly 50 shares an elastic element 22 with the first button assembly 20. It is readily understood that in some embodiments, the electronic device 1 may only include the first button assembly 20; or, in some embodiments, the electronic device 1 may further include a third button assembly in addition to the first button assembly 20 and the second button assembly 50. This application does not limit this, and those skilled in the art can choose according to actual needs.

[0071] For example, the second button assembly 50 and the first button assembly 20 may be spaced apart along the second direction X. The second button assembly 50 may have the same or similar structure as the first button assembly 20; for example, the second button assembly 50 may also include a button plate, an elastic element, and a button cap stacked sequentially along the first direction Z. In some embodiments, the second button assembly 50 may not include the button cap 23.

[0072] The second button assembly 50 shares the elastic element 22 with the first button assembly 20. In other words, the elastic element of the second button assembly 50 can be integrally formed with the elastic element 22 of the first button assembly 20 to improve the waterproof performance of the electronic device 1.

[0073] Furthermore, the periphery of the integrally molded elastic element 22 can also be interference-fitted with the inner wall of the mounting groove 121 to improve the waterproof performance of the electronic device 1.

[0074] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to 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 an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0075] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present application and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present application.

[0076] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0077] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A button assembly, characterized in that, The button assembly has a first direction and a second direction that are perpendicular to each other, and includes a button plate, an elastic element and a button cap that are stacked sequentially along the first direction. The keypad is provided with a switching element. The elastic element includes a base, a first elastic support, and at least one second elastic support. The first and second elastic supports are disposed on the side of the base near the keycap. The first and second elastic supports are spaced apart along the second direction to support the keycap and provide a rebound force to the keycap. The projection of the first elastic support along the first direction falls on the switching element. The first elastic support is configured to move downward along the first direction when the keycap is subjected to external pressure, thereby triggering the switching element.

2. The button assembly according to claim 1, characterized in that, The switching element can provide a tactile feedback to the button assembly; When the first elastic support and the second elastic support move downward along the first direction at the same distance, the rebound force provided by the first elastic support is less than the rebound force provided by the second elastic support.

3. The button assembly according to claim 2, characterized in that, The first elastic support includes a first support block and a first elastic wall. The first elastic wall surrounds the first support block and connects the first support block to the base. The first support block is used to support the button cap, and the first elastic wall is used to provide the rebound force. The second elastic support includes a second support block and a second elastic wall. The second elastic wall surrounds the second support block and connects the second support block to the base. The second support block is used to support the button cap, and the second elastic wall is used to provide the rebound force. The thickness of the first elastic wall is less than the thickness of the second elastic wall; and / or, both the first elastic wall and the second elastic wall are made of silicone, and the hardness of the silicone used to form the first elastic wall is less than the hardness of the silicone used to form the second elastic wall.

4. The button assembly according to claim 2, characterized in that, The first elastic support includes a first support block and a first elastic wall. The first elastic wall surrounds the first support block and connects the first support block to the base. The first support block is used to support the button cap, and the first elastic wall is used to provide the rebound force. The second elastic support includes a second support block and a second elastic wall. The second elastic wall surrounds the second support block and connects the second support block to the base. The second support block is used to support the button cap, and the second elastic wall is used to provide the rebound force. On a reference section passing through the central axis of the first spring wall, a first reference line passing through both ends of the inner contour line of the first spring wall on one side of the central axis of the first spring wall forms a first angle with the main surface of the keypad; on a reference section passing through the central axis of the second spring wall, a second reference line passing through both ends of the inner contour line of the second spring wall on one side of the central axis of the second spring wall forms a second angle with the main surface of the keypad; the first angle is smaller than the second angle.

5. The button assembly according to claim 4, characterized in that, When the button cap is not subjected to external pressure, the first spring wall is arranged in a flat plate shape parallel to the main surface of the button plate, and the second spring wall is arranged in a tapering cylindrical shape in the direction from the base to the second support block.

6. The button assembly according to claim 5, characterized in that, On a reference section passing through the central axis of the second projectile wall, the second projectile wall is arranged in an arc shape.

7. The button assembly according to claim 1, characterized in that, The elastic element abuts against the keypad via the base, and abuts against the keycap via the first elastic support and the second elastic support; The base is provided with a first opening and at least one second opening. The first elastic support covers the first opening and protrudes toward the side close to the keycap to form a first deformation cavity on the side away from the keycap. The second elastic support covers the corresponding second opening and protrudes toward the side close to the keycap to form a second deformation cavity on the side away from the keycap. A connecting port is provided on the substrate located between the first opening and the second opening, the connecting port being used to connect the first deformation cavity and the second deformation cavity.

8. The button assembly according to claim 1, characterized in that, When the button cap is not subjected to external pressure, the button cap forms a pre-compression on the first elastic support, and the pre-compression degree of the second elastic support is less than that of the first elastic support.

9. The button assembly according to claim 1, characterized in that, The button assembly further includes a third direction, which is perpendicular to the first direction and the second direction, and the dimension of the button assembly along the second direction is greater than the dimension of the button assembly along the third direction. In the second direction, the first elastic support is closer to the center of the button assembly than the second elastic support.

10. The button assembly according to claim 9, characterized in that, The number of the second elastic support is two, and the two second elastic supports are spaced apart along the second direction, with the first elastic support disposed between the two second elastic supports.

11. The button assembly according to claim 10, characterized in that, In the second direction, the ratio of the length of the longest line connecting the two second elastic supports to the length of the keycap is between 0.6 and 1.

12. An electronic device, characterized in that, The device includes a housing and a first button assembly, wherein the first button assembly is the button assembly according to any one of claims 1-11, the housing is provided with a mounting groove, and the first button assembly is disposed in the mounting groove.

13. The electronic device according to claim 12, characterized in that, The electronic device also includes a circuit board; The housing encloses an installation space, the circuit board is disposed within the installation space, the mounting groove is a blind groove disposed on the side wall of the housing, and the switching element is electrically connected to the circuit board through a wire hole disposed at the bottom of the blind groove.

14. The electronic device according to claim 13, characterized in that, The electronic device also includes a button cover, which is disposed over the opening end of the mounting groove, and the button cover has a third opening. The button cap includes a pressing body and a limiting part. The pressing body includes a first surface and a second surface disposed opposite to each other. The first surface is supported by the elastic member, and the second surface is exposed through the third opening. The limiting part is disposed on the outer periphery of the pressing body and extends outward. When the button cap is not subjected to external pressing force, the button cap presses the limiting part in the direction toward the button plate, and the elastic member supports the pressing body in the direction away from the button plate.

15. The electronic device according to claim 14, characterized in that, The electronic device further includes a second button assembly disposed in the mounting slot, and the button cover is provided with a fourth opening, through which at least a portion of the second button assembly is exposed, and the second button assembly shares the elastic element with the first button assembly.

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