Waterproof key module and electronic device

Abstract

The invention discloses a waterproof key module and an electronic device. The waterproof key module is applied to an electronic device and comprises a key body, a key shaft and at least one elastic connecting piece, the key body is made of a flexible material and comprises a pressing part, a connecting part and at least two annular bulge structures; the connecting part integrally surrounds the pressing part; the at least two annular bulge structures are separately arranged on the connecting part; a first end part of the key shaft is connected with an inner surface of the key body, and a second end part of the key shaft is used for pressing and touching a touch unit; the at least one elastic connecting piece is connected with the key shaft. Therefore, the waterproof key module has excellent waterproof and dustproof effects, and the service life of the waterproof key module can be effectively prolonged.

Description

Technical Field

[0001] The present invention relates to a key module and an electronic device, and particularly to a waterproof key module and an electronic device that can effectively prevent moisture and dust from entering. Background Art

[0002] Keys are very important for the operation of electronic devices. However, the keys of electronic devices are actuating parts, and after being pressed multiple times, the internal parts of the keys may be worn or broken, resulting in the electronic device being unable to operate through the keys and losing its function. Moreover, the keys are assembled and set on the outer shell of the electronic device for the user to press and strike the internal parts for operation. However, dust and moisture outside the electronic device may also enter the electronic device through the gap between the key and the outer shell of the electronic device, affecting the internal components. Therefore, the current market demand for the waterproof and dustproof specifications of the keys of electronic devices is also increasing day by day.

[0003] To solve the above problems, most of the key structures on the market coat waterproof back glue between the key structure and the electronic device body, or prevent dust and moisture from entering the electronic device by installing an O-ring in the key structure. However, the method of attaching with waterproof back glue may cause the back glue to harden or fall off after being pressed multiple times, losing the waterproof function and at the same time reducing the service life of the key structure. When using the interference of the O-ring to achieve the waterproof effect, it is easy to cause the hard key to be blocked by the O-ring and unable to be effectively pressed.

[0004] Therefore, developing a key structure and an electronic device with both durability and high waterproof and dustproof effects has become the goal that the relevant industry is committed to researching. Summary of the Invention

[0005] The present invention provides a waterproof key module and an electronic device. The waterproof key module includes a base, a key body, a key shaft, and at least one elastic connecting member. By configuring that the key body includes at least two annular convex structures and the at least two annular convex structures abut against the inner wall of the base of the electronic device, moisture or dust can be prevented from entering the accommodation space of the electronic device through the gap between the key body and the base. In this way, not only can the cost of waterproofing by the known key structure by coating waterproof back glue or installing an O-ring be saved, but also the IP67 or above level of the International Protection Marking can be maintained after being pressed multiple times, having excellent waterproof and dustproof effects and effectively improving the service life of the waterproof key module.

[0006] One embodiment of the present invention is to provide a waterproof button module, which includes a base, a button body, a key shaft, and at least one elastic connecting member. The base includes a slot. The button body is disposed on the base and covers the slot. The button body is made of a flexible material and includes a pressing portion, a connecting portion, and at least two annular protrusion structures. The pressing portion is exposed outside the slot. The connecting portion integrally surrounds the pressing portion and is located in the slot. The at least two annular protrusion structures are separately disposed on the connecting portion, and the at least two annular protrusion structures abut against the inner edge surface of the slot. The key shaft is disposed on the base. One first end of the key shaft is connected to an inner surface of the button body, and one second end of the key shaft is used to press and touch a touch unit. One first end of the at least one elastic connecting member is fixedly disposed on the base, and one second end of the at least one elastic connecting member is connected to the key shaft.

[0007] Another embodiment of the present invention is to provide an electronic device, which includes a housing, a printed circuit board, and a waterproof button module. The housing has an accommodation space. The printed circuit board is disposed in the accommodation space and includes a touch unit. The waterproof button module is disposed on the housing, and the waterproof button module includes a base, a button body, a key shaft, and at least one elastic connecting member. The base is disposed on the housing and includes a slot. The button body is disposed on the base and covers the slot. The button body is made of a flexible material and includes a pressing portion, a connecting portion, and at least two annular protrusion structures. The pressing portion is exposed outside the slot. The connecting portion integrally surrounds the pressing portion and is located in the slot. The at least two annular protrusion structures are separately disposed on the connecting portion, and the at least two annular protrusion structures abut against the inner edge surface of the slot. The key shaft is disposed on the base. One first end of the key shaft is connected to an inner surface of the button body, and one second end of the key shaft is used to press and touch the touch unit. One end of the at least one elastic connecting member is fixedly disposed on the base, and the other end of the at least one elastic connecting member is connected to the key shaft.

[0008] Another embodiment of the present invention is to provide a waterproof button module, which is applied to an electronic device. The waterproof button module includes a button body, a key shaft, and at least one elastic connecting member. The button body is made of a flexible material and includes a pressing portion, a connecting portion, and at least two annular protrusion structures. The connecting portion integrally surrounds the pressing portion. The at least two annular protrusion structures are separately disposed on the connecting portion. One first end of the key shaft is connected to an inner surface of the button body, and one second end of the key shaft is used to press and touch a touch unit. The at least one elastic connecting member is connected to the key shaft, and the at least one elastic connecting member is a curved cantilever. Description of the Drawings

[0009] To make the above and other objects, features, advantages, and embodiments of the present invention more obvious and understandable, the description of the drawings is as follows:

[0010] Figure 1 Schematic diagram showing the electronic device of the present invention;

[0011] Figure 2 Showing Figure 1 exploded schematic diagram of the electronic device;

[0012] Figure 3 Showing Figure 1 schematic diagram of the waterproof button module of the present invention in the electronic device;

[0013] Figure 4 Showing Figure 3 schematic diagram of the waterproof button module viewed from another direction;

[0014] Figure 5 Showing Figure 3 cross-sectional view of the waterproof button module;

[0015] Figure 6 Showing Figure 3 schematic diagram of the button body of the waterproof button module;

[0016] Figure 7 Showing Figure 3 partial enlarged view of the waterproof button module;

[0017] Figure 8 Showing Figure 3 connection schematic diagram of the key shaft and the elastic connecting member of the waterproof button module;

[0018] Figure 9 Showing Figure 8 connection schematic diagram of the key shaft and the elastic connecting member viewed from another direction;

[0019] Figure 10 Showing Figure 4 actuation schematic diagram of the waterproof button module; and

[0020] Figure 11 Showing Figure 10 schematic diagram of the waterproof button module viewed from the direction of the touch unit.

[0021] Description of main component symbols:

[0022] 100 Electronic device

[0023] 101 Accommodation space

[0024] 110 Housing

[0025] 120 Printed circuit board

[0026] 121 Touch unit

[0027] 130 Base

[0028] 131 First body

[0029] 132 Second body

[0030] 133 Slot

[0031] 134 Ring-shaped limiting structure

[0032] 135 Clearance inside the base

[0033] 136 Slide groove

[0034] 137 Slide block

[0035] 200 Waterproof button module

[0036] 210 Button body

[0037] 211 Pressing part

[0038] 212 Connecting part

[0039] 213 Ring-shaped convex structure

[0040] 214 Ring piece

[0041] 215 Extension part

[0042] 216 Inner surface

[0043] 217 Joining structure

[0044] 220 Key shaft

[0045] 221 First end

[0046] 222 Second end

[0047] 223 Connecting structure

[0048] 224 First slider

[0049] 225 Side plate

[0050] 226 Second slider

[0051] 230 Elastic connecting piece

[0052] 231 First end

[0053] 232 Second end Detailed implementation mode

[0054] The following will discuss various embodiments of the present invention in more detail. However, these embodiments can be applications of various inventive concepts and can be specifically implemented within various different specific scopes. The specific embodiments are for illustrative purposes only and are not limited to the disclosed scope. In addition, for the sake of simplifying the drawings, some well-known and conventional structures and elements will be shown in a simple schematic manner in the drawings, and repeated or identical elements may be represented by the same reference numerals.

[0055] Please refer to Figures 1 to 4 , Figure 1 which is a schematic diagram showing the electronic device 100 of the present invention, Figure 2 showing Figure 1 an exploded schematic diagram of the electronic device 100, Figure 3 showing Figure 1 a schematic diagram of the waterproof button module 200 of the present invention in the electronic device 100, and Figure 4 showing Figure 3 a schematic diagram of the waterproof button module 200 viewed from another direction. The electronic device 100 includes a housing 110, a printed circuit board 120, and a waterproof button module 200.

[0056] The housing 110 has an accommodation space 101. As Figure 1 shown, the housing 110 is wrapped outside the electronic device 100 and is used to isolate the accommodation space 101 from the external space of the electronic device 100, and the housing 110 can be selected from a plastic material or a metal material according to requirements. When a plastic material is selected, the housing 110 will have excellent heat insulation effect, and when a metal material is selected, the housing 110 will have excellent heat conduction effect, and the present invention is not limited to a specific material.

[0057] The printed circuit board 120 is disposed in the accommodation space 101, and the printed circuit board 120 includes a touch unit 121. The touch unit 121 is fixedly disposed on the surface of the printed circuit board 120 (not shown in the figure), and the touch unit 121 can be a touch switch, which has a low rated voltage and current and can be triggered by touching, but the present invention is not limited thereto.

[0058] The waterproof button module 200 is disposed on the housing 110. Specifically, the waterproof button module 200 of the present invention is disposed on the housing 110 of the electronic device 100 through a base 130, where the base 130 can be a frame inside the electronic device 100, or the base 130 can also be an element in the waterproof button module 200 for connecting to the housing 110, but the present invention is not limited thereto. The waterproof button module 200 basically includes a button body 210, a button shaft 220, and at least one elastic connecting member 230.

[0059] Please also refer to Figures 1 to 4 and Figures 5 to 7, wherein Figure 5 shows Figure 3 a cross-sectional view of the waterproof button module 200, Figure 6 shows Figure 3 a schematic view of the button body 210 of the waterproof button module 200, and Figure 7 shows Figure 3 a partial enlarged view of the waterproof button module 200. In the electronic device 100, the button body 210 is disposed on the base 130, wherein the base 130 may include a slot 133, and the button body 210 is disposed in and covers the slot 133 to preliminarily prevent moisture or dust from entering the accommodation space 101 of the electronic device 100 through the slot 133. Furthermore, the button body 210 may be made of a flexible material, so that the button body 210 can be quickly deformed and reset during repeated pressing to meet the repeated pressing requirements of the waterproof button module 200.

[0060] As Figure 6 shown, the button body 210 includes a pressing portion 211, a connecting portion 212, at least two annular protrusion structures 213, a ring piece 214, and an extension portion 215. The connecting portion 212 integrally surrounds the pressing portion 211, and at least two annular protrusion structures 213 are disposed on the connecting portion 212 separately from each other. The ring piece 214 is integrally connected to the pressing portion 211 and extends outward from the pressing portion 211, and the extension portion 215 is connected to the side of the connecting portion 212 different from the pressing portion 211. As shown in Figure 3 , Figure 5 and Figure 7 shown, in the electronic device 100, the pressing portion 211 of the button body 210 is exposed outside the slot 133 of the base 130, the connecting portion 212 integrally surrounds the pressing portion 211 and is located in the slot 133, at least two annular protrusion structures 213 abut against an inner edge surface (not shown in the figure) of the slot 133, and the ring piece 214 extends integrally outward from the pressing portion 211 and covers the slot 133. Thereby, the ring piece 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, and at least two annular protrusion structures 213 arranged in sequence from the connecting portion 212 to the extension portion 215 and abutting against the inner edge surface of the slot 133 will deform due to their flexibility when abutting against the inner edge surface of the slot 133, and further form a tight connection with the slot 133, thereby forming a waterproof barrier inside the slot 133 to block moisture from entering the accommodation space 101. In this way, not only can the cost of waterproofing the known button structure by applying waterproof back glue or installing an O-ring be eliminated, but also the waterproof button module 200 of the present invention can still maintain an International Protection Marking of IP67 or above after multiple presses, and has excellent waterproof and dustproof effects.

[0061] Furthermore, if Figure 6 and Figure 7 As shown, the number of the annular protrusion structures 213 can be four, and the heights of the four annular protrusion structures 213 are sequentially increased from the pressing portion 211 to the touch unit 121. In this way, a multi-layer waterproof threshold effect that is sequentially increased from the pressing portion 211 to the touch unit 121 can be formed, and the waterproof and dustproof specifications of the waterproof key module 200 can be further improved. Furthermore, the heights of the four annular protrusion structures 213 sequentially arranged from the pressing portion 211 to the touch unit 121 can be 0.16mm, 0.18mm, 0.20mm and 0.23mm respectively, but the present invention is not limited thereto. Similarly, the present invention is not limited to the number of annular protrusion structures 213 disclosed in the accompanying drawings.

[0062] In addition, although not shown in the figure, the heights of the four annular protrusion structures 213 can also be configured to be the same. In this case, the slot 133 will be configured to gradually shrink in sequence from the pressing portion 211 to the touch unit 121. In this way, when the annular protrusion structure 213 abuts against the inner edge surface of the slot 133, the interference effect between the four annular protrusion structures 213 and the inner edge surface of the slot 133 will gradually increase from the pressing portion 211 to the touch unit 121. In this way, a multi-layer waterproof threshold effect that gradually increases in sequence from the pressing portion 211 to the touch unit 121 can also be formed.

[0063] Please refer to Figure 2 , Figure 5 and Figure 7 , the base 130 may further include a first body 131 and a second body 132, wherein the first body 131 is connected to the second body 132, and the first body 131 is connected to the connecting portion 212 of the key body 210. In detail, the inner edge surface of the slot 133 is located on the first body 131, and the second body 132 includes an annular limiting structure 134, wherein the annular limiting structure 134 abuts against the key body 210, and the annular limiting structure 134 is used to position the key body 210. Further, as Figure 7As shown, the first body 131 and the second body 132 are correspondingly connected to define a base inner gap 135. The annular limiting structure 134 is located in the base inner gap 135, and the extension 215 of the button body 210 is also located in the base inner gap 135, so that the annular limiting structure 134 abuts against a surface (not shown in the figure) of the extension 215. Since the button body 210 is made of a flexible material, the annular limiting structure 134 will abut against the surface of the extension 215 and deform it, thereby stably positioning the extension 215 in the base inner gap 135. Thereby, it is possible to effectively prevent the button body 210 from being displaced or detached after being pressed multiple times, and it can remain stable during pressing, so that the waterproof button module 200 still has a protection effect of IP67 or above after being pressed more than ten thousand times.

[0064] Please also refer to Figures 2 to 5 and Figures 7 to 10 where Figure 8 shows Figure 3 a schematic connection diagram of the key shaft 220 and the elastic connecting member 230 of the waterproof button module 200, Figure 9 shows Figure 8 a schematic connection diagram of the key shaft 220 and the elastic connecting member 230 as viewed from another direction, and Figure 10 shows Figure 4 a schematic operation diagram of the waterproof button module 200. In the electronic device 100, the key shaft 220 is disposed on the base 130, wherein a first end 221 of the key shaft 220 is connected to an inner surface 216 of the button body 210, and a second end 222 of the key shaft 220 is used to press the touch control unit 121. Specifically, as Figure 7 shown, the button body 210 may further include a joining structure 217, the joining structure 217 is disposed 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 disposed on the first end 221 of the key shaft 220, and the connection structure 223 is connected to the joining structure 217. Thereby, it is possible to effectively prevent the relative position between the button body 210 and the key shaft 220 from changing after the waterproof button module 200 is pressed multiple times, and the height alignment between the button body 210 and the key shaft 220 can be maintained.

[0065] Again, as Figure 4 , Figure 5 , Figures 8 to 10As shown, a first end 231 of the elastic connecting member 230 is assembled to the base 130, and a second end 232 of the elastic connecting member 230 is connected to the key shaft 220. Specifically, in the waterproof button module 200, the elastic connecting member 230 can be a curved cantilever, and the elastic connecting member 230 is fixed to the base 130 at its first end 231 and extends meanderingly while closely adhering to the surface of the base 130, and then its second end 232 is connected to the key shaft 220. In this way, as Figure 10 shown, when the button body 210 is pressed to push the key shaft 220 to displace in the direction of the touch unit 121, the elastic connecting member 230 can provide a restoring force for the key shaft 220 in the direction towards the button body 210, so as to quickly rebound and reset after the second end portion 222 of the key shaft 220 touches the touch unit 121. Furthermore, the elastic connecting member 230 can also prevent the key shaft 220 from hitting the touch unit 121 excessively, preventing the touch unit 121 from being damaged due to excessive external force. Furthermore, since the elastic connecting member 230 can control the displacement amplitude of the key shaft 220 along the direction from the button body 210 to the touch unit 121, the waterproof button module 200 has an excellent touch feel, and at the same time, it can ensure that the key shaft 220 will not bear excessive force during repeated pressing, resulting in permanent deformation or fracture.

[0066] Furthermore, in the waterproof button module 200, the number of the elastic connecting members 230 can be two. The two elastic connecting members 230 are respectively fixed to the base 130 at their first ends 231, and their second ends 232 are connected to the key shaft 220, and the total length of the two elastic connecting members 230 can be 60 mm to 100 mm. Or, the total length of the two elastic connecting members 230 can be 80 mm. Thereby, the pressing feel of the waterproof button module 200 can be further improved, and the possibility of deformation and fracture caused when an external force is applied to the key shaft 220 can be effectively reduced. Furthermore, the first end 231 of the elastic connecting member 230 can be fixed to the base 130 by a hot melting fixing method, so as to avoid the use of additional parts, but the present invention is not limited thereto.

[0067] Please also refer to Figures 3 to 5 and Figures 8 to 11 , in which Figure 11 shows Figure 10 a schematic view of the waterproof button module 200 as observed from the direction of the touch unit 121. As Figures 3 to 5 and Figures 8 to 11As shown, the key shaft 220 may include a first slider 224 that extends along the first end 221 in the direction of the second end 222. The base 130 may further include a chute 136 located in the accommodation space 101 and on a side of the base 130 different from the key body 210, and the first slider 224 may be displaceably limited in the chute 136. Thereby, when the key shaft 220 reciprocates in the direction from the key body 210 to the touch unit 121, the first slider 224 limited in the chute 136 can prevent the key shaft 220 from shifting during displacement, enabling the key shaft 220 to stably transfer the pressing force from the key body 210 to the touch unit 121 of the printed circuit board 120, thereby achieving the requirement of stable pressing.

[0068] Again, Figure 3 and Figures 8 to 11 As shown, the key shaft 220 may further include two side plates 225 that are respectively located on two sides of the first slider 224, and each side plate 225 includes a second slider 226. The base 130 may further include two sliding seats 137 located in the accommodation space 101 and on the side of the base 130 different from the key body 210. The two second sliders 226 of the two side plates 225 may be displaceably limited in the two sliding seats 137 respectively, and a height direction of the first slider 224 is perpendicular to a height direction of each second slider 226.

[0069] Specifically, the waterproof key module 200 of the present invention achieves the function of touch pressing by the displacement of the key shaft 220 in the accommodation space 101, and achieves the effect of stable pressing in the three axial directions of the X-axis, Y-axis, and Z-axis of the electronic device 100 through the corresponding configuration of the first slider 224, the chute 136, the second slider 226, and the sliding seat 137. As Figure 10 and Figure 11As shown, the height direction of the first slider 224 extends along the Y-axis direction of the electronic device 100 from the axis of the key shaft 220 (not marked in the figure), and the height direction of each second slider 226 extends from each side plate 225 along the X-axis direction of the electronic device 100 towards a direction different from the key shaft 220. The first slider 224 is displaceably limited in the sliding groove 136, and the second sliders 226 are displaceably limited in the two sliding seats 137 respectively. 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, the first slider 224 limited in the sliding groove 136 can prevent the key shaft 220 from deviating along the X-axis direction of the electronic device 100 during the displacement along the Z-axis direction of the electronic device 100, and the second sliders 226 limited in the two sliding seats 137 respectively can prevent the key shaft 220 from deviating along the Y-axis direction of the electronic device 100 during the displacement, so that the key shaft 220 can stably transmit the pressing force from the key body 210 along the Z-axis direction of the electronic device 100 to the printed circuit board 120 and touch the touch control unit 121 through the elastic restoring force of the elastic connecting member 230, thereby achieving the requirement of stable pressing.

[0070] For another example Figure 3 , Figure 4 and Figure 10 As shown, when the key shaft 220 reciprocates along the direction from the key body 210 to the touch control unit 121 (i.e., the Z-axis direction of the electronic device 100), the sliding groove 136 will abut against the two side plates 225 of the key shaft 220 when the key shaft 220 returns to the key body 210. In this way, it can further prevent the key shaft 220 from rebounding excessively and hitting the inner surface 216 of the key body 210, so that the waterproof key module 200 of the present invention has excellent operation stability, retains good structural integrity after more than ten thousand presses, and can maintain its protection effect at IP67 or above level.

[0071] In summary, for 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 the at least two annular protrusion structures 213 abut against the inner edge surface of the slot hole 133 of the base 130 of the electronic device 100. This configuration can prevent moisture or dust from entering the accommodation space 101 of the electronic device 100 through the gap between the button body 210 and the base 130. In this way, not only can the cost of waterproofing by applying waterproof back glue or installing an O-ring in the known button structure be eliminated, but also the protection level of IP67 or above can be maintained after multiple presses. Furthermore, by fixing the first end 231 of the elastic connecting member 230 on the base 130 and connecting the second end 232 of the elastic connecting member 230 to the key shaft 220, not only can a restoring force for the key shaft 220 to return to the button body 210 be provided, but also the pressing feel of the waterproof button module 200 can be improved, and damage caused by the key shaft 220 hitting the touch unit 121 excessively can be prevented. Moreover, through the corresponding configuration of the first slider 224, the side plate 225, and the second slider 226 of the key shaft 220 with the sliding groove 136 and the sliding seat 137 of the base 130, a three-dimensional direction limiting effect of the key shaft 220 in the electronic device 100 when reciprocatingly displacing in the direction from the button body 210 to the touch unit 121 can be provided. Furthermore, the waterproof button module 200 of the present invention has excellent operation stability, and can still maintain its protection effect of IP67 or above after more than ten thousand presses.

[0072] Although the present invention has been disclosed as above in the embodiments, it is not intended 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 defined by the scope of the appended claims.

Claims

1. A waterproof key module, the waterproof key module comprising: a base, the base comprising a slot; A key body is disposed on the base and covers the slot, wherein the key body is made of a flexible material and includes: A pressing portion, the pressing portion is exposed outside the slot; a connecting portion, the connecting portion integrally surrounding the pressing portion and located in the slot; and At least two annular protrusion structures, the at least two annular protrusion structures are separately disposed on the connecting portion, and the at least two annular protrusion structures abut against an inner edge surface of the slot; a key shaft, the key shaft being disposed on the base, wherein a first end of the key shaft is connected to an inner surface of the key body, and a second end of the key shaft is used for pressing and touching a touch unit; and At least one elastic connecting member, wherein a first end of the at least one elastic connecting member is fixed on the base, and a second end of the at least one elastic connecting member is connected to the key shaft.

2. The waterproof key module according to claim 1, wherein the base further comprises: a first body connected to the connecting portion, and an inner edge surface of the slot is located on the first body; and A second body is connected to the first body, wherein the second body includes an annular limiting structure, the annular limiting structure abuts against the button body, and the annular limiting structure is used to position the button body.

3. The waterproof key module according to claim 2, wherein: The first body is connected to the second body correspondingly to define a gap in the base, and the annular limiting structure is located in the gap in the base; and The button body also includes an extension portion, wherein the extension portion is located in the inner gap of the base, and the annular limiting structure abuts against a surface of the extension portion.

4. The waterproof key module according to claim 1, wherein the key body further comprises: A ring piece is integrally connected to the pressing portion and extends from the pressing portion to cover the slot. 5 . The waterproof keypad module as claimed in claim 1 , wherein heights of the at least two annular protrusion structures increase sequentially from the pressing portion toward the touch unit. 6 . The waterproof keypad module as claimed in claim 1 , wherein the at least one elastic connecting member is a curved cantilever. 7 . The waterproof key module as claimed in claim 6 , wherein the number of the at least one elastic connecting member is two, and the total length of the two elastic connecting members is 60 mm to 100 mm.

8. The waterproof key module according to claim 1, wherein: The key body further includes a joint structure, and the joint structure is disposed on the inner surface of the key body; and The key shaft includes a connection structure, which is arranged at the first end and connected to the joint structure.

9. The waterproof key module according to claim 1, wherein: The key shaft includes a first slider extending from the first end toward the second end; and The base also includes a slide groove, which is located on a side of the base different from the key body, and the first sliding block is displaceably limited in the slide groove.

10. The waterproof key module according to claim 9, wherein: The key shaft further includes two side plates, the two side plates are respectively located on two sides of the first slider, and each of the side plates includes a second slider; and The base also includes two slide seats, the two slide seats are located on the side of the base different from the key body, and the two second sliding blocks of the two side plates are displaceably limited in the two slide seats respectively; Wherein, a height direction of the first sliding block is perpendicular to a height direction of each of the second sliding blocks.

11. An electronic device, comprising: A housing having a containing space; a printed circuit board, the printed circuit board is disposed in the accommodating space, and the printed circuit board includes a touch unit; as well as A waterproof key module, which is disposed on the housing and includes: A base, which is disposed on the housing and includes a slot; A key body is disposed on the base and covers the slot, wherein the key body is made of a flexible material and includes: A pressing portion, the pressing portion is exposed outside the slot; a connecting portion, the connecting portion integrally surrounding the pressing portion and located in the slot; and At least two annular protrusion structures, which are separately disposed on the connecting portion and abut against the inner edge surface of the slot; a key shaft, the key shaft being disposed on the base, wherein a first end of the key shaft is connected to an inner surface of the key body, and a second end of the key shaft is used for pressing and touching the touch unit; and At least one elastic connecting member, wherein one end of the at least one elastic connecting member is fixed on the base, and the other end of the at least one elastic connecting member is connected to the key shaft.

12. The electronic device as claimed in claim 11, wherein the base further comprises: a first body connected to the connecting portion, and an inner edge surface of the slot is located on the first body; and A second body is connected to the first body, wherein the second body includes an annular limiting structure, the annular limiting structure abuts against the button body, and the annular limiting structure is used to position the button body.

13. The electronic device of claim 12, wherein: The first body is connected to the second body correspondingly to define a gap in the base, and the annular limiting structure is located in the gap in the base; The button body also includes an extension portion, wherein the extension portion is located in the inner gap of the base, and the annular limiting structure abuts against a surface of the extension portion.

14. The electronic device as claimed in claim 11, wherein the key body further comprises: A ring piece is integrally connected to the pressing portion and extends from the pressing portion to cover the slot. 15 . The electronic device as claimed in claim 11 , wherein heights of the at least two annular protrusion structures increase sequentially from the pressing portion toward the touch unit.

16. The electronic device as claimed in claim 11, wherein the at least one elastic connecting member is a curved cantilever. 17 . The electronic device as claimed in claim 16 , wherein the number of the at least one elastic connecting member is two, and the total length of the two elastic connecting members is 60 mm to 100 mm.

18. The electronic device of claim 11, wherein: The key body further includes a joint structure, and the joint structure is disposed on the inner surface of the key body; and The key shaft includes a connection structure, which is arranged at the first end and connected to the joint structure.

19. The electronic device of claim 11, wherein: The key shaft includes a first slider extending from the first end toward the second end; and The base further comprises a slide groove, the slide groove is located in the accommodating space, and the first sliding block is displaceably limited in the slide groove.

20. The electronic device of claim 19, wherein: The key shaft further includes two side plates, the two side plates are respectively located on two sides of the first slider, and each of the side plates includes a second slider; and The base also includes two slide seats, the two slide seats are located in the accommodating space, and the two second sliding blocks of the two side plates are displaceably limited in the two slide seats respectively; Wherein, a height direction of the first sliding block is perpendicular to a height direction of each of the second sliding blocks.

21. A waterproof key module, which is applied to an electronic device, and comprises: A key body, the key body is made of a flexible material, and the key body includes: a pressing portion; a connecting portion, the connecting portion integrally surrounding the pressing portion; and At least two annular protrusion structures, the at least two annular protrusion structures are separately disposed on the connecting portion; a key shaft, a first end of which is connected to an inner surface of the key body, and a second end of which is used for pressing and touching a touch unit; and At least one elastic connecting piece is connected to the key shaft, and the at least one elastic connecting piece is a curved cantilever. 22 . The waterproof key module as claimed in claim 21 , wherein the number of the at least one elastic connecting member is two, and the total length of the two elastic connecting members is 60 mm to 100 mm. 23 . The waterproof keypad module as claimed in claim 21 , wherein heights of the at least two annular protrusion structures increase sequentially from the pressing portion toward the touch unit.

24. The waterproof key module according to claim 21, wherein: The key body further includes a joint structure, and the joint structure is disposed on the inner surface of the key body; and The key shaft includes a connection structure, which is arranged at the first end and connected to the joint structure.

25. The waterproof key module as claimed in claim 21, wherein the key shaft comprises: a first slider extending from the first end portion toward the second end portion; as well as Two side plates, the two side plates are respectively located on two sides of the first sliding block, and each of the side plates includes a second sliding block; Among them, a height direction of the first slider is perpendicular to a height direction of each second slider, the first slider is displaceably limited in a slide groove of the electronic device, and the two second sliders of the two side plates are displaceably limited in two slide seats of the electronic device respectively.

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