Waterproof button module and electronic device

Abstract

To provide a waterproof button module.SOLUTION: A waterproof button module used in an electronic device includes: a button body made of a flexible material and including a pressing part, a connection part integrally enclosing the pressing part, and at least two annular projection structures provided spaced apart from each other in the connection part; a key shaft connected at a first end to an inner surface of the button body and used to touch and press a touch unit with a second end; and at least one elastic connection member connected to the key shaft. The structure allows the waterproof button module of the present invention to achieve excellent waterproof and dustproof effect and effectively extend a durable life of the waterproof button module.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a button module and an electronic device, particularly a waterproof button module and an electronic device that can effectively prevent the intrusion of water and dust.

Background Art

[0002] Buttons are very important for the operation of electronic devices. However, the buttons of electronic devices are movable members, and after being pressed multiple times, the internal components of the buttons may wear or break. Therefore, the electronic device may not be able to operate through the buttons and may lose its functions. In addition, the buttons are provided by being assembled in the case of the electronic device for the user to press and operate by hitting the internal components. However, dust and moisture outside the electronic device may enter the electronic device through the gap between the button and the case of the electronic device, which may affect the internal elements. For this reason, the demand for waterproof and dustproof specifications for the buttons of currently commercially available electronic devices is also increasing.

[0003] In order to solve the above problems, commercially available button structures often prevent the intrusion of dust and moisture into the electronic device by applying waterproof rubber between the button structure and the main body of the electronic device or attaching an O-ring to the button structure. However, the method of adhering the waterproof rubber may cause the rubber to harden or fall off after being pressed multiple times, resulting in the loss of the waterproof function and shortening the service life of the button structure. When achieving the waterproof effect due to the interference of the O-ring, the hard button may be inhibited by the O-ring and cannot be effectively pressed.

[0004] Therefore, developing a button structure that combines durability and a high waterproof and dustproof effect has become the goal of research being carried out by the related industry.

Summary of the Invention

Means for Solving the Problems

[0005] The present invention provides a waterproof button module and an electronic device including a base, a button body, a key shaft, and at least one elastic connection member. The button body includes at least two annular protrusion structures, and the at least two annular protrusion structures are in contact with the inner wall of the base of the electronic device, so that moisture and dust can be prevented from entering the accommodation space of the electronic device through the gap between the button body and the base. In this way, in the well-known button structure, not only can the cost of waterproofing by applying waterproof rubber or attaching an O-ring be saved, but also an International Protection Marking of IP67 or higher can be achieved even after being pressed multiple times, having an excellent waterproof and dustproof effect, and effectively extending the service life of the waterproof button module.

[0006] An embodiment of the present invention provides a waterproof button module including a base including a groove hole, a button body provided on the base and covering the groove hole, made of a flexible material, and having a pressing portion exposed in the groove hole, a connection portion integrally surrounding the pressing portion and located in the groove hole, and at least two annular protrusion structures provided at intervals from each other on the connection portion and in contact with the inner edge surface of the groove hole, a key shaft provided on the base, having a first end connected to the inner surface of the button body and a second end for pressing and touching a touch unit, and at least one elastic connection member having a first end fixedly provided on the base and a second end connected to the key shaft.

[0007] Another embodiment of the present invention provides an electronic device comprising a housing having an accommodation space, a printed circuit board provided in the accommodation space and including a touch unit, a base provided on the housing and including a groove hole, a pressing portion provided on the base to cover the groove hole and made of a flexible material and exposed in the groove hole, a connection portion integrally surrounding the pressing portion and located in the groove hole, at least two annular protrusion structures provided on the connection portion and spaced apart from each other and abutting against the inner edge surface of the groove hole, a button body including the above components, a key shaft provided on the base, with its first end connected to the inner surface of the button body and its second end pressing the touch unit for touching, and at least one elastic connection member having one end fixedly provided on the base and the other end connected to the key shaft.

[0008] Another embodiment of the present invention provides a waterproof button module for use in an electronic device, the waterproof button module including a button body made of a flexible material and including a pressing portion, a connection portion integrally surrounding the pressing portion, and at least two annular protrusion structures provided on the connection portion and spaced apart from each other, a key shaft with its first end connected to the inner surface of the button body and its second end pressing the touch unit for touching, and at least one elastic connection member connected to the key shaft and being a curved cantilever.

[0009] For a clearer and more understandable description of the above and other objects, features, advantages and embodiments of the present invention, the description of the accompanying drawings is as follows.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

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Figure 7

Figure 8

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Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0011] Hereinafter, each embodiment of the present invention will be examined in more detail. However, this embodiment may be an application of various inventive concepts and may be specifically implemented within various different specific ranges. The specific embodiment is for the purpose of illustration only and is not limited to the disclosed range. In order to simplify the drawings, some well-known and commonly used structures and elements are shown simply and schematically in the drawings, and repeated elements or similar elements may be represented by the same numbers.

[0012] Please refer to FIGS. 1 to 4. FIG. 1 is a schematic view showing the electronic device 100 of the present invention, FIG. 2 is an exploded schematic view showing the electronic device 100 of FIG. 1, FIG. 3 is a schematic view showing the waterproof button module 200 of the present invention in the electronic device 100 of FIG. 1, and FIG. 4 is a schematic view observing the waterproof button module 200 of FIG. 3 from another direction. The electronic device 100 includes a housing 110, a printed circuit board 120, and a waterproof button module 200.

[0013] The housing 110 has a receiving space 101. As shown in FIG. 1, the housing 110 covers the outside of the electronic device 100 and separates the receiving space 101 from the external space of the electronic device 100. And the housing 110 may select a plastic material or a metal material as needed. When selecting a plastic material, the housing 110 has an excellent heat insulation effect. When selecting a metal material, the housing 110 has an excellent heat conduction effect. The present invention is not limited to a specific material.

[0014] The printed circuit board 120 is provided in the receiving space 101 and includes a touch unit 121. The touch unit 121 is fixedly provided on the surface (not shown) of the printed circuit board 120. The touch unit 121 may be a tact switch, having a low rated voltage and current, and can be touched by a touch impact, but the present invention is not limited thereto.

[0015] The waterproof button module 200 is provided on the housing 110. Specifically, the waterproof button module 200 of the present invention is provided on the housing 110 of the electronic device 100 via a base 130. The base 130 may be an inner frame of the electronic device 100, or may be an element for connecting to the housing 110 in the waterproof button module 200, but the present invention is not limited thereto. The waterproof button module 200 basically includes a button body 210, a key shaft 220, and at least one elastic connection member 230.

[0016] Please refer to FIGS. 1 to 4 and FIGS. 5 to 7 simultaneously. FIG. 5 is a cross-sectional view showing the waterproof button module 200 of FIG. 3, FIG. 6 is a schematic view showing the button body 210 of the waterproof button module 200 of FIG. 3, and FIG. 7 is a partial enlarged view of the waterproof button module 200 of FIG. 3. In the electronic device 100, the button body 210 is provided on the base 130. The base 130 may include a groove hole 133. The button body 210 is provided in and covers the groove hole 133, thereby initially preventing moisture and dust from entering the accommodation space 101 of the electronic device 100 through the groove hole 133. Further, the button body 210 may be made of a flexible material and can be rapidly deformed and reset while being repeatedly pressed, satisfying the repeated pressing requirement of the waterproof button module 200.

[0017] As shown in FIG. 6, the button body 210 includes a pressing portion 211, a connecting portion 212, at least two annular protrusion structures 213, a ring sheet 214, and an extending portion 215. The connecting portion 212 integrally surrounds the pressing portion 211. The at least two annular protrusion structures 213 are provided on the connecting portion 212 at intervals from each other. The ring sheet 214 is integrally connected to the pressing portion 211 and extends outward from the pressing portion 211. The extending portion 215 is connected to a side of the connecting portion 212 different from the pressing portion 211. As shown in FIGS. 3, 5, and 7, in the electronic device 100, the pressing portion 211 of the button body 210 is exposed in the groove hole 133 of the base 130. The connecting portion 212 integrally surrounds the pressing portion 211 and is located in the groove hole 133. The at least two annular protrusion structures 213 are in contact with the inner edge surface (not shown) of the groove hole 133. The ring sheet 214 extends integrally outward from the pressing portion 211 and covers the groove hole 133. Thereby, the ring sheet 214 can prevent moisture from flowing into the accommodation space 101 of the electronic device 100 through the gap between the button body 210 and the base 130. The at least two annular protrusion structures 213 arranged in sequence from the connecting portion 212 toward the extending portion 215 and in contact with the inner edge surface of the groove hole 133 can be deformed due to their flexibility when contacting the inner edge surface of the groove hole 133, and can be further closely connected to the groove hole 133, and further form a waterproof barrier inside the groove hole 133 to block the intrusion of moisture into the accommodation space 101. Thus, in the well-known button structure, not only can the cost of waterproofing by applying waterproof rubber or attaching an O-ring be saved, but also the waterproof button module 200 of the present invention can have a grade of IP67 or higher in the International Protection Marking even after being pressed multiple times, and has an excellent waterproof and dustproof effect.

[0018] Also, as shown in FIGS. 6 and 7, the number of the annular protrusion structures 213 may be four, and the heights of the four annular protrusion structures 213 increase in order in the direction from the pressing portion 211 to the touch unit 121. Thereby, a multi-layer waterproof threshold effect that increases in order in the direction from the pressing portion 211 to the touch unit 121 can be formed, and the waterproof and dustproof specifications of the waterproof button module 200 can be further enhanced. Further, the heights of the four annular protrusion structures 213 arranged in order in the direction from the pressing portion 211 to the touch unit 121 may be 0.16 mm, 0.18 mm, 0.20 mm, and 0.23 mm respectively, but the present invention is not limited thereto. Similarly, the present invention is not limited to the number of the annular protrusion structures 213 disclosed in the drawings.

[0019] Also, although not shown, the heights of the four annular protrusion structures 213 may be configured to be the same. In this case, the groove holes 133 are configured to gradually become smaller in order in the direction from the pressing portion 211 to the touch unit 121. Thus, when the annular protrusion structure 213 abuts against the inner edge surface of the groove hole 133, the interference effect between the four annular protrusion structures 213 and the inner edge surface of the groove hole 133 gradually increases in the direction from the pressing portion 211 to the touch unit 121, and thus a multi-layer waterproof threshold effect that increases in order in the direction from the pressing portion 211 to the touch unit 121 can be formed.

[0020] Please refer to FIGS. 2, 5 and 7. The base 130 may further include a first body 131 and a second body 132. The first body 131 is connected to the second body 132 and is also connected to the connection portion 212 of the button body 210. Specifically, the inner edge surface of the groove hole 133 is located on the first body 131, and the second body 132 includes an annular restriction structure 134. The annular restriction structure 134 is used to abut against the button body 210 and position the button body 210. Further, as shown in FIG. 7, the first body 131 is connected corresponding to the second body 132 to define an inner base gap 135. The annular restriction structure 134 is located in the inner base gap 135, and the extension portion 215 of the button body 210 is also located in the inner base gap 135. Further, the annular restriction structure 134 is abutted against the surface (not shown) of the extension portion 215. Since the button body 210 is made of a flexible material, the annular restriction structure 134 can abut against the surface of the extension portion 215 and deform it, and further stably position the extension portion 215 in the inner base gap 135. Thereby, it is possible to effectively prevent the button body 210 from being displaced or falling off after being pressed multiple times, and to maintain stability when pressed. The waterproof button module 200 can have a protection effect of IP67 or higher even after being pressed more than 10,000 times.

[0021] Please refer to FIGS. 2 to 5 and FIGS. 7 to 10 simultaneously. FIG. 8 is a schematic connection diagram of the key shaft 220 and the elastic connection member 230 of the waterproof button module 200 in FIG. 3, FIG. 9 is a schematic connection diagram of the key shaft 220 and the elastic connection member 230 in FIG. 8 observed from another direction, and FIG. 10 is a schematic operation diagram of the waterproof button module 200 in FIG. 4. In the electronic device 100, the key shaft 220 is provided on the base 130, the first end 221 of the key shaft 220 is connected to the inner surface 216 of the button body 210, and the second end 222 of the key shaft 220 is used to press and touch the touch unit 121. Specifically, as shown in FIG. 7, the button body 210 may further include a joining structure 217 provided on the inner surface 216 of the button body 210, and the key shaft 220 may include a connection structure 223. The connection structure 223 is provided at the first end 221 of the key shaft 220 and is connected to the joining structure 217. Thereby, after the waterproof button module 200 is pressed multiple times, it is possible to effectively prevent the relative position between the button body 210 and the key shaft 220 from changing, and it is possible to maintain the alignment of the heights of the button body 210 and the key shaft 220.

[0022] As shown in FIGS. 4, 5, 8 to 10, the first end 231 of the elastic connection member 230 is connected to the base 130, and the second end 232 of the elastic connection member 230 is connected to the key shaft 220. Specifically, in the waterproof button module 200, the elastic connection member 230 may be a curved cantilever. The elastic connection member 230 is fixedly provided on the base 130 through its first end 231 and meanders and extends in close contact with the surface of the base 130, and then is connected to the key shaft 220 through its second end 232. In this way, as shown in FIG. 10, when the button body 210 is pressed and the key shaft 220 is pressed to displace in the direction of the touch unit 121, the elastic connection member 230 can provide a reset force for the key shaft 220 in the direction of the button body 210 so that the second end portion 222 of the key shaft 220 quickly rebounds and resets after touching and impacting the touch unit 121. In addition, the elastic connection member 230 can prevent the key shaft 220 from hitting the touch unit 121 excessively and prevent the touch unit 121 from being damaged by excessive external force. In addition, since the elastic connection member 230 can control the width of the displacement of the key shaft 220 along the direction from the button body 210 to the touch unit 121, the waterproof button module 200 can be provided with better touch feeling, and it can be ensured that the key shaft 220 will not be permanently deformed or broken under excessive force during the process of being repeatedly pressed.

[0023] In addition, in the waterproof button module 200, the number of the elastic connection members 230 may be 2. The two elastic connection members 230 are respectively fixedly provided on the base 130 through their first ends 231 and connected to the key shaft 220 through their second ends 232, and the total length of the two elastic connection members 230 may be 60 mm to 100 mm. Or the total length of the two elastic connection members 230 may be 80 mm. Thereby, the pressing feeling of the waterproof button module 200 can be further enhanced, and the risk of deformation or breakage when an external force is applied to the key shaft 220 can be effectively reduced. In addition, in order to avoid the use of additional parts, the elastic connection member 230 is fixedly provided on the base 130 through its first end 231 by thermal welding fixation, but the present invention is not limited thereto.

[0024] Please refer to FIGS. 3 to 5 and FIGS. 8 to 11 simultaneously. FIG. 11 is a schematic view of observing the waterproof button module 200 of FIG. 10 from the direction of the touch unit 121. As shown in FIGS. 3 to 5 and FIGS. 8 to 11, the key shaft 220 may include a first slider 224 extending along the first end portion 221 in the direction of the second end portion 222. The base 130 is located within the accommodation space 101 and on a side different from the button body 210 of the base 130, and may further include a chute 136 in which the first slider 224 is displaceably restricted. Thereby, when the key shaft 220 reciprocally displaces along the direction from the button body 210 to the touch unit 121, the first slider 224 restricted within the chute 136 can avoid the shift during the displacement of the key shaft 220, and the key shaft 220 can stably transmit the pressing force from the button body 210 to the touch unit 121 of the printed circuit board 120, and can further achieve the requirement of stably pressing.

[0025] As shown in FIGS. 3 and 8 to 11, the key shaft 220 may further include two side plates 225 each including a second slider 226, which are located on both sides of the first slider 224 respectively. The base 130 is located within the accommodation space 101 and on the said side different from the button body 210 of the base 130, and may further include two slide bases 137 in which the two second sliders 226 of the two side plates 225 are respectively displaceably restricted. The height direction of the first slider 224 is perpendicular to the height direction of each second slider 226.

[0026] Specifically, the waterproof button module 200 of the present invention achieves the function of touching and pressing due to the displacement in the accommodation space 101 of the key shaft 220, and through the corresponding configurations of the first slider 224, the chute 136, the second slider 226 and the slide base 137, it achieves the effect of stably pressing in the three axial directions of the X-axis, Y-axis and Z-axis of the electronic device 100. As shown in FIGS. 10 and 11, the height direction of the first slider 224 extends along the Y-axis direction of the electronic device 100 from the axis (not shown) of the key shaft 220, and the height direction of each second slider 226 extends in a direction different from the key shaft 220 along the X-axis direction of the electronic device 100 from each side plate 225. Moreover, the first slider 224 is restricted to be displaceable within the chute 136, and the second slider 226 is respectively restricted to be displaceable within the two slide bases 137. When the key shaft 220 reciprocates along the Z-axis direction of the electronic device 100, since the height direction of the first slider 224 extends along the Y-axis direction of the electronic device 100 and the height direction of the second slider 226 extends along the X-axis direction of the electronic device 100, at this time, the first slider 224 restricted within the chute 136 can avoid shifting along the X-axis direction of the electronic device 100 while the key shaft 220 displaces along the Z-axis direction of the electronic device 100. The second slider 226 restricted within the two slide bases 137 respectively can avoid shifting along the Y-axis direction of the electronic device 100 during the displacement of the key shaft 220. The key shaft 220 can stably transmit the pressing force from the button body 210 to the printed circuit board 120 along the Z-axis direction of the electronic device 100 by the elastic reset force of the elastic connection member 230 and can touch the touch unit 121, and further can achieve the requirement of more stable pressing.

[0027] As shown in FIGS. 3, 4, and 10, when the key shaft 220 reciprocates along the direction from the button body 210 to the touch unit 121 (i.e., the Z-axis direction of the electronic device 100), the chute 136 abuts against the two side plates 225 of the key shaft 220 when resetting in the direction from the key shaft 220 to the button body 210. In this way, it is further possible to avoid the key shaft 220 from rebounding excessively and colliding with the inner surface 216 of the button body 210. The waterproof button module 200 of the present invention has excellent operation stability, can maintain good structural integrity even after being pressed more than 10,000 times, and can have a protection effect with a grade of IP67 or above.

[0028] As described above, in the electronic device 100 and the waterproof button module 200 of the present invention, the button body 210 of the waterproof button module 200 includes at least two annular protrusion structures 213, and at least two annular protrusion structures 213 are in contact with the inner edge surface of the groove hole 133 of the base 130 of the electronic device 100. In this configuration, it is possible to prevent moisture and dust from entering the accommodation space 101 of the electronic device 100 through the gap between the button body 210 and the base 130. Thus, in the well-known button structure, not only can the cost of waterproofing by applying waterproof rubber or attaching an O-ring be saved, but also protection of IP67 or higher grade can be provided even after being pressed multiple times. Further, since the first end 231 of the elastic connection member 230 is fixedly provided on the base 130 and the second end 232 of the elastic connection member 230 is connected to the key shaft 220, not only can the key shaft 220 provide a reset force to reset to the button body 210, but also the pressing feel of the waterproof button module 200 can be enhanced, and it is possible to prevent the key shaft 220 from damaging the touch unit 121 by hitting it excessively. Also, due to the corresponding configurations of the first slider 224, the side plate 225, and the second slider 226 of the key shaft 220 and the chute 136 and the slide base 137 of the base 130, when the key shaft 220 reciprocates in the direction from the button body 210 to the touch unit 121, a three-dimensional direction regulation effect in the electronic device 100 can be provided. Furthermore, the waterproof button module 200 of the present invention has excellent operation stability and can maintain its protection effect of IP67 or higher grade even after being pressed more than 10,000 times.

[0029] Although the present invention is disclosed in the above embodiments, the above-described embodiments are not used to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on what is limited by the patent scope of the application attached later.

Explanation of Reference Numerals

[0030] 100: Electronic device 101: Accommodation space 110: Housing 120: Printed circuit board 121: Touch unit 130: Base 131: First body 132: Second body 133: Groove hole 134: Annular restriction structure 135: Space inside the base 136: Shoot 137: Slide base 200: Waterproof button module 210: Button body 211: Pushing part 212: Connection part 213: Annular protrusion structure 214: Ring sheet 215: Extending part 216: Inner surface 217: Joining structure 220: Key shaft 221: First end 222: Second end 223: Connection structure 224: First slider 225: Side plate 226: Second slider 230: Elastic connection member 231: First end 232: Second end

Claims

1. A base including a groove hole, provided on the base and covering the groove hole, made of a flexible material, a pressing part exposed in the groove hole, a connecting part integrally surrounding the pressing part and located in the groove hole, a button body including at least two annular protrusion structures provided at intervals from each other on the connecting part and abutting against the inner edge surface of the groove hole, a key shaft provided on the base, with a first end connected to the inner surface of the button body and a second end pressing against a touch unit for touching, at least one elastic connecting member having a first end fixedly provided on the base and a second end connected to the key shaft, a waterproof button module including the above.

2. The base is, a first main body connected to the connecting part and where the inner edge surface of the groove hole is located, a second main body including an annular restricting structure for abutting against the button body and positioning the button body, and connected to the first main body, The waterproof button module according to claim 1, further including the above.

3. The first main body is connected corresponding to the second main body to define an inner gap in the base, and the annular restricting structure is located in the inner gap in the base, The button body is located in the inner gap in the base and further includes an extending part on the surface where the annular restricting structure abuts. The waterproof button module according to claim 2.

4. The button body is, The waterproof button module according to claim 1, further including a ring sheet integrally connected to the pressing part, extending from the pressing part and covering the groove hole.

5. The heights of the at least two annular protrusion structures increase in order in the direction from the pressing part to the touch unit. The waterproof button module according to claim 1.

6. The at least one elastic connecting member is a curved cantilever. The waterproof button module according to claim 1.

7. The button body further includes a joining structure provided on the inner surface of the button body, The key shaft includes a connecting structure provided at the first end and connected to the joining structure. The waterproof button module according to claim 1.

8. The key shaft includes a first slider extending along the direction from the first end to the second end, The base further includes a chute located on a side different from the button body of the base, and the first slider is displaceably restricted. The waterproof button module according to claim 1.

9. A housing having a receiving space, A printed circuit board provided in the accommodation space and including a touch unit, Provided on the housing, A base provided on the housing and including a groove hole, Provided on the base and covering the groove hole, and made of a flexible material, A pressing portion exposed in the groove hole, A connecting portion integrally surrounding the pressing portion and located in the groove hole, A button body including at least two annular protrusion structures provided at intervals from each other on the connecting portion and abutting against the inner edge surface of the groove hole, A key shaft provided on the base, having a first end connected to the inner surface of the button body and a second end for pressing and touching the touch unit, A waterproof button module including at least one elastic connection member having one end fixedly provided on the base and the other end connected to the key shaft, An electronic device comprising.

10. The base is, A first main body connected to the connecting portion and where the inner edge surface of the groove hole is located, An electronic device according to claim 9, further comprising a second main body that abuts against the button body and includes an annular restricting structure for positioning the button body, and is connected to the first main body.

11. The first main body is connected corresponding to the second main body to define an inner gap in the base, and the annular restricting structure is located in the inner gap in the base, The electronic device according to claim 10, wherein the button body is located in the inner gap in the base and further includes an extending portion on the surface where the annular restricting structure abuts.

12. The button body is, An electronic device according to claim 9, further comprising a ring sheet integrally connected to the pressing portion, extending from the pressing portion and covering the groove hole.

13. The height of the at least two annular protrusion structures increases in order in the direction from the pressing portion to the touch unit in the electronic device according to claim 9.

14. The at least one elastic connection member is a curved cantilever in the electronic device according to claim 9.

15. The button body further includes a joining structure provided on the inner surface of the button body, The key shaft includes a connection structure provided at the first end and connected to the joining structure in the electronic device according to claim 9.

16. The key shaft includes a first slider extending along the direction from the first end to the second end, The base further includes a chute located in the accommodation space and where the first slider is displaceably restricted in the electronic device according to claim 9. ​

17. A waterproof button module for use in an electronic device, manufactured from a flexible material, a pressing portion, a connecting portion integrally surrounding the pressing portion, a button body including at least two annular protrusion structures provided spaced apart from each other in the connecting portion, a key shaft having a first end connected to the inner surface of the button body and a second end for pressing and touching a touch unit, at least one elastic connecting member connected to the key shaft and being a curved cantilever, a waterproof button module including the above.

18. The waterproof button module according to claim 17, wherein the heights of the at least two annular protrusion structures increase in order in a direction from the pressing portion to the touch unit.

19. The button body further includes a joining structure provided on the inner surface of the button body, The key shaft includes a connecting structure provided at the first end and connected to the joining structure. The waterproof button module according to claim 17.

20. The key shaft includes a first slider extending along a direction from the first end to the second end, and two side plates respectively located on both sides of the first slider and each including a second slider, The height direction of the first slider is perpendicular to the height direction of each of the second sliders. The first slider is displaceably restricted within a chute of the electronic device, and the two second sliders of the two side plates are respectively displaceably restricted within two slide bases of the electronic device. The waterproof button module according to claim 17.

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