Equipment and waterproof components

Abstract

The embodiments of the present application provide a device and a waterproof assembly, the device comprising: a housing provided with a first cavity, the first cavity connecting at least part of the internal cavity of the device and the external space; a sealing component provided with a first through hole, the first through hole being arranged in the first cavity; a key comprising a key shaft, the key shaft comprising a first section and a second section along the axial direction, the radial cross-sectional dimension of the first section being larger than the radial cross-sectional dimension of the second section; when the key shaft is inserted into the first through hole, the outer wall of the first section circumferentially abuts against the side wall of the first through hole, isolating the internal cavity of the device from the external space; under the action of an external force, the key shaft can move relative to the sealing component toward the internal cavity of the device, the first through hole being circumferentially sleeved on the outside of the second section, the radial cross-sectional dimension of the first through hole being larger than the radial cross-sectional dimension of the second section, connecting the internal cavity of the device to the external space. The device has waterproof and breathable functions.

Description

Technical Field

[0001] The present application relates to the field of equipment technology, and in particular to an equipment and a waterproof component. Background Art

[0002] Common devices typically include a housing with an internal cavity that houses other components. To prevent external liquids from entering the internal cavity and impacting the normal operation of other components, the device typically requires a waterproof structure. For example, a waterproof membrane can be attached to the opening of the housing, which can provide a certain degree of waterproofing. However, when the device operates for extended periods of time under deep water pressure, the membrane risks swelling and deformation due to the water pressure, compromising the device's waterproofing function and affecting the normal operation of other components within the internal cavity. Summary of the Invention

[0003] The present application provides a device and a waterproof component, which can improve the waterproof performance of the device.

[0004] According to a first aspect of an embodiment of the present application, a device is provided, comprising: a housing, wherein the housing is provided with a first cavity, wherein the first cavity is communicated with at least part of the internal cavity of the device, and the first cavity is communicated with the external space of the housing; a sealing component, wherein the sealing component is an annular structure, wherein the sealing component is provided with a first through hole, and wherein the sealing component is fixedly disposed in the first cavity; a key, wherein the key comprises a key shaft, wherein the key shaft comprises a first section and a second section along the axial direction, wherein the radial cross-sectional dimension of the first section is greater than the radial cross-sectional dimension of the second section; when the key shaft is inserted into the first through hole, The outer wall of the first section is in circumferential abutment with the side wall of the first through hole, so that the internal cavity of the device is isolated from the external space; when the outer wall of the first section is in circumferential abutment with the side wall of the first through hole, under the action of external force, the key shaft can move toward the internal cavity of the device relative to the sealing component, and the outer wall of the first section and the side wall of the first through hole are changed from circumferential abutment to circumferential non-abutment. The first through hole is circumferentially sleeved on the outside of the second section, and the radial cross-sectional dimension of the first through hole is larger than the radial cross-sectional dimension of the second section, so that the internal cavity of the device is connected with the external space.

[0005] In the above-mentioned device, by setting a waterproof component and moving the button axially, the sealing component can be used to block or open the first cavity, thereby realizing the waterproof function and breathable function of the device, that is, when the inner wall of the sealing component is in circumferential contact with the first section of the button, the function of blocking the inner cavity of the device and the external environment is realized (the device has a waterproof function). At this time, compared with the waterproof structure with a waterproof film in the prior art, the sealing performance of this solution is better, so that the device has good waterproof performance. When the inner wall of the sealing component is in gap with the second section of the button, the inner cavity of the device and the external environment are connected through the third cavity, realizing the exhaust function. At this time, in addition to the waterproof function, the device of this solution also has a breathable function, thereby improving the performance of the device. And in the process of switching the device from having a waterproof function to having a breathable function, it only needs to move the button axially, which has the advantage of simple operation.

[0006] In one possible design, the radial cross-section of the first section is circular, the radial cross-section of the second section is circular, and the diameter of the radial cross-section of the second section is smaller than the diameter of the radial cross-section of the first section.

[0007] In one possible design, the first through hole is a circular hole, the diameter of the first through hole in a natural state is larger than the diameter of the radial cross section of the second section, and the diameter of the first through hole in a natural state is smaller than the diameter of the radial cross section of the first section.

[0008] In one possible design, when the outer wall of the first section forms a circumferential interference fit with the sidewall of the first through-hole, the internal cavity of the device is isolated from the external space. In this embodiment, when the outer wall of the first section forms an interference fit with the sidewall of the first through-hole, the seal between the sealing component and the first section is highly reliable, preventing liquid from the external environment from entering the internal cavity of the device through the first through-hole, further improving the waterproof performance of the device.

[0009] In one possible design, the shell also includes a second cavity, which is away from the internal cavity of the device relative to the first cavity; the button also includes a first limiting portion; the side wall of the second cavity is also circumferentially provided with a sliding groove, and the first limiting portion can rotate along the sliding groove; the ends of the sliding groove include a first end and a second end, the second end is provided with a bottom wall, and the first end extends toward the internal cavity of the device to form a groove; when the first limiting portion is located at the second end, the bottom wall limits the key shaft from moving toward the internal cavity of the device relative to the sealing component; when the first limiting portion rotates along the sliding groove to the first end, the key shaft can move along the groove relative to the sealing component toward the internal cavity of the device.

[0010] In this embodiment, by providing the first limiting portion and the bottom wall of the chute, it is possible to prevent the device from switching to the breathable state due to accidental touch of the button when in the waterproof state, thereby preventing liquid from entering the interior of the device housing due to accidental touch, thereby improving the stability of the waterproof component structure and the stability of the waterproof function. At the same time, when the device needs to switch from the waterproof state to the breathable state, the first limiting portion can be driven to rotate by rotating the button, thereby releasing the restriction on the axial movement of the button, thereby enabling the device to be in the breathable state. Therefore, while ensuring the waterproof performance of the device, it is also possible to conveniently switch the device between the waterproof state and the breathable state. Moreover, by providing the chute, the protrusion can rotate along the chute, thereby guiding the rotational movement of the protrusion through the chute. At the same time, after providing the chute, at least a portion of the protrusion can be accommodated in the chute, thereby reducing the space occupied by the waterproof component in the axial direction and facilitating the miniaturization of the device.

[0011] In one possible design, the key also includes a keycap connected to the key shaft, and the first limiting portion is arranged on the keycap; the second cavity is used to accommodate at least part of the keycap, and the radial cross-sectional dimension of the second cavity is larger than the radial cross-sectional dimension of the keycap.

[0012] In one possible design, along the circumference of the slide groove, the slide groove has a first side wall and a second side wall that are relatively arranged; during the rotation of the protrusion, when it abuts against the first side wall, the protrusion is located at the first end and corresponds to the notch of the groove, and when the protrusion abuts against the second side wall, the protrusion is located at the second end.

[0013] In this solution, by making the protrusion abut against the first side wall and the second side wall respectively, the user can easily sense the position of the protrusion and save time in aligning the protrusion with the groove, thereby facilitating the operation of the button and improving work efficiency.

[0014] In one possible design, the radial cross-sectional dimension of the second cavity is larger than the radial cross-sectional dimension of the first cavity; when the key shaft moves toward the internal cavity of the device relative to the sealing component, the upper surface of the first cavity is used to limit the movement of the key cap toward the internal cavity of the device.

[0015] In this solution, when the waterproof component moves axially toward the interior of the shell, the upper surface of the first cavity limits the key from continuing to move into the shell, thereby preventing the key shaft from extending into the shell cavity too long and scratching the electronic components in the shell cavity.

[0016] In one possible design, the first cavity includes a third cavity and a fourth cavity along the axial direction; the distance between the third cavity and the internal cavity of the device is smaller than the distance between the fourth cavity and the internal cavity of the device; the radial cross-sectional dimension of the third cavity is smaller than the radial cross-sectional dimension of the fourth cavity; the sealing component is arranged in the fourth cavity, and the bottom of the sealing component abuts against the upper surface of the third cavity.

[0017] In this solution, when the sealing component is fixed within the first cavity, the sealing component and the housing remain relatively stationary during the axial movement of the key shaft, thereby preventing the sealing component from moving with the key shaft, enabling relative movement between the key shaft and the sealing component, thereby switching the state of the waterproof assembly. At the same time, the sealing component can be limited by the upper surface of the third cavity, thereby preventing the sealing component from moving axially toward the interior of the housing.

[0018] In a possible design, the bottom wall of the sealing component is fixedly connected to the upper surface of the third cavity, or the outer wall of the sealing component is fixedly connected to the side wall of the fourth cavity.

[0019] In one possible design, the sealing component is made of rubber; the sealing component is injection-molded or bonded to the upper surface of the third cavity; or the outer wall of the sealing component is injection-molded or bonded to the side wall of the fourth cavity.

[0020] In one possible design, the radial cross-sectional dimension of the first section is smaller than the radial cross-sectional dimension of the third cavity. In this solution, there is a gap between the outer wall of the first section and the side wall of the third cavity, and the gap connects the internal cavity of the shell and the fourth cavity.

[0021] In a possible design, the key further includes an elastic component, which is sleeved on the key shaft and located between the key cap and the sealing component.

[0022] In a possible design, the key further includes a pressing piece, which is sleeved on the key shaft and arranged between the elastic component and the sealing component.

[0023] In this solution, when the key shaft of the waterproof component moves toward the interior of the shell and the elastic component is in a compressed state, the elastic component applies pressure toward the interior of the shell on the pressing plate, and the pressure acts on the sealing component through the pressing plate, thereby pressing the sealing component against the upper surface of the third cavity. At the same time, under the axial pressure of the pressing plate, the sealing component has a tendency to expand radially outward, thereby improving the sealing effect between the sealing component and the fourth cavity.

[0024] In one possible design, when the outer wall of the first section is circumferentially abutted against the side wall of the first through hole, the compression amount of the elastic component is a first compression amount; when the first through hole is circumferentially sleeved on the outside of the second section, the compression amount of the elastic component is a second compression amount, and the first compression amount is greater than the second compression amount.

[0025] In a possible design, when the first through hole is circumferentially arranged on the outside of the second section, under the action of the restoring force of the elastic component, the elastic component drives the button to move in a direction away from the internal cavity of the device.

[0026] In one possible design, the elastic component includes a spring having a third end and a fourth end; the first cavity is provided with a first mounting groove, and the third end is installed in the first mounting groove; the button is provided with a second mounting groove, and the fourth end is installed in the second mounting groove.

[0027] In this solution, the provision of the first mounting groove and the second mounting groove can improve the connection reliability between the elastic component and the mounting portion and the button, and can prevent the elastic component from becoming loose from the mounting portion and the button when the button is rotated.

[0028] In one possible design, the elastic component includes a torsion spring; the button is provided with a protrusion, and the mounting portion of the shell is provided with a slide groove and a groove. Along the circumference of the slide groove, the slide groove has a first end and a second end relatively arranged, and the groove is located at the first end and extends from the bottom wall of the slide groove to the internal cavity of the device; in the initial state, the protrusion is located at the second end, the outer wall of the first section is circumferentially abutted with the side wall of the first through hole, and the protrusion is abutted with the bottom wall of the slide groove to limit the movement of the key shaft relative to the sealing component toward the internal cavity of the device.

[0029] In this solution, when a torsion spring is used as the elastic component, the button can automatically return to the position where the protrusion is located at the second end of the slide groove under the action of the restoring force generated by the torsion spring. That is, after the external force on the button is removed, the axial movement of the button can be restricted without rotating the button, avoiding the situation where the button is accidentally touched due to the protrusion not rotating to the second end, thereby improving the reliability of the waterproof component.

[0030] In a possible design, the bottom of the sealing component and the upper surface of the third cavity are fixedly connected.

[0031] In a possible design, the outer side wall of the sealing component and the side wall of the fourth cavity are fixedly connected.

[0032] In one possible design, the key also includes a gasket and a keycap, the keycap is connected to the key shaft, and the gasket is sleeved on the end of the key shaft away from the keycap; the gasket is located in the internal cavity of the device, and the radial dimension of the gasket is larger than the radial dimension of the third cavity; when the key moves in a direction away from the internal cavity of the device, the gasket restricts the key from detaching from the device.

[0033] In this solution, by providing a gasket, when the key moves axially and away from the inner cavity of the shell, the gasket prevents the key from separating from the shell under the action of the restoring force of the elastic component, thereby improving the installation reliability of the waterproof component and the shell.

[0034] In one possible design, the device includes an electronic component, which is located in the internal cavity of the shell.

[0035] According to a second aspect of an embodiment of the present application, a waterproof component is provided, which includes: a sealing component, which is an annular structure and is provided with a first through hole; a button, which includes a key shaft, which includes a first section and a second section along the axial direction, and the radial cross-sectional dimension of the first section is larger than the radial cross-sectional dimension of the second section; when the first through hole is circumferentially sleeved on the outside of the first section, the outer wall of the first section is circumferentially abutted with the side wall of the first through hole; when the outer wall of the first section is circumferentially abutted with the side wall of the first through hole, under the action of external force, the key shaft can move axially relative to the sealing component, and the outer wall of the first section and the side wall of the first through hole are changed from circumferential abutment to circumferential non-abutment, and the first through hole is circumferentially sleeved on the outside of the second section, and the radial cross-sectional dimension of the first through hole is larger than the radial cross-sectional dimension of the second section.

[0036] In a possible design, the key further includes a keycap connected to the key shaft, and the keycap is provided with a first limiting portion.

[0037] In a possible design, the key further includes an elastic component, which is sleeved on the key shaft and located between the key cap and the sealing component.

[0038] In one possible design, when the outer wall of the first section is circumferentially abutted against the side wall of the first through hole, the compression amount of the elastic component is a first compression amount; when the first through hole is circumferentially sleeved on the outside of the second section, the compression amount of the elastic component is a second compression amount, and the first compression amount is greater than the second compression amount.

[0039] In a possible design, the key further includes a pressing piece, which is sleeved on the key shaft and arranged between the elastic component and the sealing component.

[0040] In a possible design, the key further includes a gasket, which is sleeved on an end of the key shaft away from the keycap.

[0041] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the structure of a device provided in an embodiment of the present application;

[0043] Figure 2 for Figure 1 A partial enlarged view of part I;

[0044] Figure 3 for Figure 2 Structural diagram of the middle installation part;

[0045] Figure 4 for Figure 3 A cross-sectional view of the middle mounting portion along the AA direction;

[0046] Figure 5 for Figure 3 A top view of

[0047] Figure 6 for Figure 2 A front view of the waterproof assembly in one embodiment;

[0048] Figure 7 This is an exploded view of the waterproof component;

[0049] Figure 8 for Figure 6 Schematic diagram of the structure of the middle button;

[0050] Figure 9 for Figure 2 A schematic diagram of the structure of the middle mounting portion and the waterproof assembly, wherein the waterproof assembly is in a first state;

[0051] Figure 10 for Figure 1 A schematic diagram of the structure of the middle shell and the waterproof assembly in cooperation, wherein the waterproof assembly is in a first state;

[0052] Figure 11 for Figure 2 A schematic diagram of the structure of the middle mounting portion and the waterproof assembly, wherein the waterproof assembly is in the second state;

[0053] Figure 12 for Figure 1 A schematic diagram of the structure of the middle shell and the waterproof assembly in cooperation, wherein the waterproof assembly is in the second state;

[0054] Figure 13 for Figure 9 A top view of

[0055] Figure 14 for Figure 11 A top view of

[0056] Figure 15 Schematic diagram of the structure of the mounting portion and the waterproof component, wherein the waterproof component can be switched from a first state to a second state;

[0057] Figure 16 It is a structural diagram of the coordination between the elastic component and the mounting portion;

[0058] Figure 17 for Figure 1 A schematic diagram of the local structure of the elastic component and the shell;

[0059] Figure 18 for Figure 17 BB cross-sectional view;

[0060] Figure 19 for Figure 18 Schematic diagram of the middle installation part.

[0061] Reference numerals:

[0062] 1-housing; 1A-first cavity; 11-third cavity; 12-fourth cavity; 121-first step; 13-second cavity; 131-second step; 14-groove; 141-first mounting slot; 15-slide; 151-first end; 152-second end; 153-first side wall; 154-second side wall; 155-bottom wall; 16-inner cavity; 17-mounting portion; 171-inner wall;

[0063] 2-waterproof component; 21-button; 211-key shaft; 211a-slot; 211b-first section; 211c-second section; 211c1-first part; 211c2-second part; 212-keycap; 212a-second mounting slot; 213a-first limiting portion; 231b-second limiting portion; 214-protrusion; 22-sealing component; 221-first through hole; 23-elastic component; 231-third end; 232-fourth end; 24-gasket; 241-second through hole; 242-notch; 25-pressing sheet; 251-third through hole.

[0064] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0065] The terms used in the following embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0066] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0067] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described based on the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also be indirectly connected to the other element "on" or "under" through an intermediate element.

[0068] The embodiment of the present application provides a waterproof component 2 and a device including the waterproof component 2. Figure 1 and Figure 2 As shown, the device can be an electronic device, that is, the housing of the device is used to accommodate electronic devices such as circuit boards and batteries. By providing a waterproof component 2, the risk of external liquid entering the interior of the housing is reduced, thereby achieving a waterproof function of the electronic device. Among them, the electronic device can be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, as well as a cellular phone, a personal digital assistant (PDA), an augmented reality (AR) device, a virtual reality (VR) device, an artificial intelligence (AI) device, a wearable device, an in-vehicle device, a smart home device and / or a smart city device. The embodiments of the present application do not impose any special restrictions on the specific type of the electronic device.

[0069] Of course, the waterproof assembly 2 in the embodiment of the present application is not limited to electronic devices, but can also be used in other devices in the field, such as water purifiers, water pumps, and other devices that may operate in liquid environments. The following uses the waterproof assembly 2 for electronic devices as an example, and other devices are similar.

[0070] Specifically, if Figures 1 to 2 As shown, the shell 1 has a mounting portion 17, which is used to install the waterproof component 2, wherein the mounting portion 17 can be a structure protruding from the surface of the shell 1 (can be a structure protruding from the side wall of the shell 1), and the mounting portion 17 can be set close to the side button of the electronic device.

[0071] like Figure 3 As shown, the housing 1 is provided with a first cavity 1A at the location of the mounting portion 17. The first cavity 1A is in communication with the inner cavity of the housing 1, and at least a portion of the waterproof assembly 2 is mounted in the first cavity 1A. The first cavity 1A is also in communication with the external environment of the housing 1.

[0072] like Figure 6 and Figure 7 As shown, the waterproof component 2 may include a button 21 and a sealing component 22, wherein the button 21 includes a key shaft 211, and the key shaft 211 includes at least a first section 211b and a second section 211c along its axial direction H, and the radial cross-sectional dimensions of the first section 211b and the second section 211c are different, and the radial cross-sectional dimension of the first section 211b is larger than the radial cross-sectional dimension of the second section 211c (for example, when the first section 211b and the second section 211c are both cylindrical structures, the diameters of the two are different, and the diameter of the first section 211b is larger than the diameter of the second section 211c).

[0073] In one embodiment, the second section 211c can be a cylindrical structure, a cubic structure, or a conical structure. This embodiment does not specifically limit the structure of the second section 211c. The size of the cross section of the second section 211c is smaller than the size of the cross section of the first section 211b. For example, when the second section 211c is a cylindrical structure and the first section 211b is a cylindrical structure, the diameter of the second section 211c is smaller than the diameter of the first section 211b. When the second section 211c is a cubic structure and the first section 211b is a cylindrical structure, the maximum size of the cross section of the second section 211c is smaller than the diameter of the first section 211b. For example, when the second section 211c is a cubic structure and the first section 211b is a cylindrical structure, and the cross section of the second section 211c is a square or rectangular, the maximum size of the diagonal of the cross section of the second section 211c is smaller than the diameter of the first section 211b.

[0074] exist Figure 7 and Figure 8In the embodiment shown, the first section 211b is a cylindrical structure, and the second section 211c can be the first part 211c1 of the cylindrical structure. At the same time, the key shaft 21 can also include a second part 211c2 connected between the first part 211c1 and the first section 211b. The diameter of the first part 211c1 is smaller than the diameter of the first section 211b, and the diameter of the second part 211c2 gradually decreases along the direction from the first section 211b to the first part 211c1.

[0075] At the same time, if Figure 7 As shown, the sealing component 22 has a first through hole 221, that is, the radial cross section of the sealing component 22 is annular. Figure 6 As shown, the sealing component 22 is sleeved on the key shaft 211 through the first through hole 221 , and the key shaft 211 can move along the axial direction H relative to the sealing component 22 . Figure 6 In the illustrated embodiment, the sealing member 22 is fitted onto the first section 211 b of the key shaft 211 .

[0076] When the sealing component 22 is not mounted on the key shaft 211, the diameter of the first through hole 221 is smaller than or equal to the diameter of the first section 211b, and the diameter of the first through hole 221 is larger than the diameter of the second section 211c. Figure 10 , the side wall of the first through hole 221 of the sealing component 22 is circumferentially abutted against the outer wall of the first section 211b (the two are circumferentially sealed and can be matched without clearance. In this case, the sealing component 22 and the first section 211b can also be interference fit); when the sealing component 22 is matched with the second section 211c of the key shaft 211, that is, at least a part of the second section 211c is located in the first through hole 221 of the sealing component 22, please refer to the attached Figure 12 A first gap is defined along the radial direction R between the side wall of the first through hole 221 in the sealing component 22 and the first section 211 c.

[0077] When the waterproof assembly 2 is installed in the mounting portion 17 of the housing 1, the key shaft 211 passes through the first cavity 1A and can move relative to the sealing component 2 along the axial direction H, thereby enabling the waterproof assembly 2 to be in either a first state or a second state. In the first state, the sealing component 22 is fitted over the first section 211b. When the waterproof assembly 2 is in the first state, the sealing component 22 seals the internal cavity of the electronic device from the external space. At this point, the electronic device is waterproof, and external liquids cannot enter the internal cavity of the electronic device.

[0078] Specifically, if Figure 4As shown, the first cavity 1A may specifically include a third cavity 11 and a fourth cavity 12, and when the waterproof component 2 is not installed on the housing 1, the third cavity 11 is connected to the fourth cavity 12. In a specific embodiment, the radial cross-sectional dimension of the fourth cavity 12 is larger than the radial cross-sectional dimension of the third cavity 11, for example, Figure 4 As shown, when the cross sections of both are circular, the diameter of the fourth cavity 12 is greater than the diameter of the third cavity 11 , and a first step 121 is formed between the fourth cavity 12 and the third cavity 11 .

[0079] In one embodiment, at least a portion of the sealing component 22 is located in the fourth cavity 12 and is fixedly installed in the fourth cavity 12. The sealing component 22 can be fixed by at least one of the following embodiments: the outer wall of the sealing component 22 is fixedly connected to the side wall of the fourth cavity 12, or the bottom wall of the sealing component 22 is fixedly connected to the first step 121; or Figure 11 and Figure 12 The elastic component 23, the pressing piece 25 and the first step 121 shown are used to limit the movement of the sealing component 23 along the axial direction H, so that the bottom wall of the sealing component 22 abuts against the first step 121, thereby fixing the sealing component 22 and preventing the sealing component 22 from moving with the key shaft 211 when the key shaft 211 moves relative to the housing 1, thereby affecting the sealing effect.

[0080] In a specific embodiment, the sealing component 22 can be disposed in the fourth cavity 12 by injection molding, thereby achieving a fixed connection between the sealing component 22 and the side wall of the fourth cavity 12 or the first step 121. In another specific embodiment, the bottom wall of the sealing component 22 can be bonded to the first step 121 by adhesive, or the side wall of the sealing component 22 can be bonded to the side wall of the fourth cavity 12 by adhesive.

[0081] In a first specific embodiment, Figure 7 As shown, the sealing component 22 can be a torus with a circular or elliptical longitudinal cross-section. At the same time, the outer wall of the first section 211b and the side wall of the fourth cavity 12 are both cylindrical surfaces. When the sealing component 22 is sleeved on the first section 211b, the inner wall of the sealing component 22 and the outer wall of the first section 211b are matched through the arc and the cylindrical surface, and the outer wall of the sealing component 22 and the side wall of the fourth cavity 12 are matched through the arc and the cylindrical surface.

[0082] In another specific embodiment, Figure 10As shown, the sealing component 22 is a circular ring with a rectangular longitudinal cross-section. At the same time, the outer wall of the first section 211b and the side wall of the fourth cavity 12 are both cylindrical surfaces. When the sealing component 22 is sleeved on the first section 211b, the inner wall of the sealing component 22 and the outer wall of the first section 211b are matched through two cylindrical surfaces, and the contact area between the two is large, thereby improving the sealing reliability between the sealing component 22 and the first section 211b. The outer wall of the sealing component 22 and the side wall of the fourth cavity 12 are matched through two cylindrical surfaces, and the contact area between the two is large, thereby improving the connection reliability between the sealing component 22 and the side wall of the fourth cavity 12.

[0083] At the same time, when the waterproof component 2 is in Figure 10 In the first state shown, under the action of external force, the key shaft 211 can move along the axial direction H relative to the sealing ring 22, that is, the key shaft 211 can move toward the inner cavity of the shell 1, so that the waterproof component 2 is in the second state. At this time, the electronic device is in a breathable state.

[0084] like Figure 11 and Figure 12 As shown in FIG. 1 , in the second state, the sealing member 22 is engaged with the second section 211c. Since the diameter of the cross section of the first through hole 221 of the sealing member 22 along the radial direction R is larger than the diameter of the cross section of the second section 211c along the radial direction R, Figure 12 As shown, a first gap exists along the radial direction R between the inner wall of the sealing component 22 and the second section 211c. This first gap communicates with the third cavity 11. This means that the sealing component 22 no longer seals the third cavity 11, and the first cavity 1A communicates with the inner cavity of the housing 1. Furthermore, since the first cavity 1A also communicates with the external environment surrounding the electronic device, when the first cavity 1A communicates with the inner cavity of the housing 1, the inner cavity of the housing 1 communicates with the external environment. At this point, the electronic device is in a breathable state.

[0085] Specifically, the key 21 may further include a key cap 212 connected to the key shaft 211. Figure 4 As shown, the mounting portion 17 further includes a second cavity 13 communicating with the fourth cavity 12. Along the axial direction H, the fourth cavity 12 is located between the second cavity 13 and the third cavity 11. The second cavity 13 is used to accommodate at least part of the keycap 212. Along the radial direction R, the radial cross-sectional dimension of the keycap 212 is smaller than the radial cross-sectional dimension of the second cavity 13, so that a second gap is formed between the keycap 212 and the side wall of the second cavity 13. At this time, the external environment and the first cavity 1A are communicated through the second gap. Therefore, in the second state, as shown in FIG. Figure 12 As shown by the arrows in , the third cavity 11 , the first gap between the inner wall of the sealing component 22 and the second section 211 c and the second gap between the key cap 212 and the side wall of the second cavity 13 form an exhaust channel.

[0086] During the movement of the key 21 along the axial direction H, a portion of the key cap 212 may extend from the second cavity 13. In a specific embodiment, when the waterproof component 2 is in the first state, such as Figure 10 As shown, a portion of the key cap 212 extends out of the second cavity 13; when the waterproof component 2 is in the second state, as shown Figure 12 As shown, the keycap 212 may be entirely located in the second cavity 13. In this embodiment, when at least a portion of the keycap 212 is accommodated in the second cavity 13, the space occupied by the key 21 can be reduced, thereby helping to reduce the overall size of the electronic device.

[0087] At the same time, if Figure 4 As shown, in the above embodiment, the third cavity 11, the fourth cavity 12 and the second cavity 13 can be coaxially arranged. The diameter of the cross section of the second cavity 13 along the radial direction R is larger than the diameter of the cross section of the fourth cavity 12 along the radial direction R, so that a second step 131 is formed between the fourth cavity 12 and the second cavity 13. And the cross section diameter of the key cap 212 is larger than the cross section diameter of the fourth cavity 12. Figure 12 As shown, when the waterproof component 2 moves along the axial direction H toward the interior of the shell 1, the bottom surface of the key cap 212 can abut against the second step 131, thereby limiting the key 21 from continuing to move toward the interior of the shell 1, thereby preventing the key shaft 211 from extending into the inner cavity of the shell 1 for too long and scratching the electronic components in the inner cavity of the shell 1.

[0088] In the electronic device described above, by providing a waterproof component 2 and moving the button 21 along the axial direction H, the sealing component 22 blocks or opens the third cavity 11, thereby achieving the waterproof and breathable functions of the electronic device. That is, in the first state, the inner wall of the sealing component 22 circumferentially abuts against the first section 211b of the button 21 to seal the inner cavity of the electronic device from the external environment (the electronic device has a waterproof function). In the second state, the inner wall of the sealing component 22, through a clearance fit with the second section 211c of the button 21, connects the inner cavity of the electronic device to the external environment through the third cavity 11, thereby achieving the exhaust function. Moreover, in the process of switching the waterproof component 2 from the first state to the second state, it is only necessary to drive the button 21 to move along the axial direction H, which has the advantage of simple operation.

[0089] In addition, when the electronic device is immersed in deeper liquid, on the one hand, the key 21 has good strength and is not easily damaged under high liquid pressure. On the other hand, when the sealing component 22 is subjected to liquid pressure in the direction of the axial direction H pointing to the interior of the housing 1, the sealing component 22 has a tendency to extend along the radial direction R of the sealing component 22, so that the pressure between the sealing component 22 and the key shaft 211 and the sealing component 22 and the first step 121 increases, thereby making the sealing effect of the sealing component on the key shaft 211 and the third cavity 11 better, thereby further improving the pressure resistance and waterproof performance of the waterproof component 2. Therefore, by providing the above-mentioned waterproof component 2, the waterproof performance and waterproof level of the electronic device are improved.

[0090] In a specific embodiment, the key shaft 211 passes through the third cavity 11, and along the radial direction R, there is a third gap between the key shaft 211 and the side wall of the third cavity 11, and the third gap is connected to the inner cavity of the housing 1 of the electronic device. When the waterproof component 2 is in the first state, as shown in FIG. Figure 9 and Figure 10 As shown, the sealing component 2 blocks the third gap, so that the third gap is isolated from the external environment, thereby isolating the inner cavity of the electronic device from the external environment; when the waterproof component 2 is in the second state, as shown Figure 12 As shown, the third gap is connected to the inner cavity of the housing 1, and the third gap (the gap between the side wall of the third cavity 11 and the outer wall of the key shaft 211) is connected to the first gap (the gap between the inner wall of the sealing component 22 and the outer wall of the key shaft 211). The first gap is connected to the external environment through the second gap (the gap between the key 21 and the second cavity 13), thereby connecting the inner cavity of the electronic device with the external environment. One end of the key shaft 211 can extend into the inner cavity of the housing 1.

[0091] Therefore, in this embodiment, by passing a portion of the key shaft 211 through the third cavity 11 , the space occupied by the waterproof component 2 along the axial direction H can be reduced, thereby helping to reduce the volume of the electronic device and increase the stroke of the key shaft 211 .

[0092] In a possible design, the waterproof component 2 may further include a first limiting portion 213a and a second limiting portion 213b, wherein the first limiting portion 213a is provided on the button 21, and the second limiting portion 213b is provided on the mounting portion 17 of the housing 1. Figure 9 and Figure 10 As shown, when the waterproof component 2 is in the first state, the first limiting portion 213a cooperates with the second limiting portion 213b to limit the button 21 along the axial direction H to limit the movement of the key shaft 211 along the axial direction H toward the inner cavity of the shell 1, thereby limiting the waterproof component 2 from switching from the first state to the second state, thereby preventing the electronic device from switching from the waterproof state to the breathable state due to accidental touch, and further improving the waterproof performance of the electronic device.

[0093] At the same time, when the electronic device needs to be ventilated, the waterproof assembly 2 needs to switch from the first state to the second state, that is, the restriction imposed by the limiter 213 on the movement of the key shaft 211 along the axial direction H toward the inner cavity of the housing 1 needs to be released. To achieve the switch from the first state to the second state, the key 21 can not only move along the axial direction H but also rotate to switch the waterproof assembly 2 between the first and second states.

[0094] Specifically, when the waterproof component 2 is in the first state, the first limiting portion 213a and the second limiting portion 213b limit the movement of the button 21 along the axial direction H toward the inside of the shell 1 (at this time, the electronic device is in a waterproof state), if it is necessary to switch to the second state, by rotating the button 21 and driving the first limiting portion 213a set on the button 21 to rotate, the cooperation between the first limiting portion 213a and the second limiting portion 213b is released, that is, the restriction on the movement of the button 21 along the axial direction H is released, so that the waterproof component 2 can be switched from the first state to the second state.

[0095] Therefore, in this embodiment, the provision of the first limiting portion 213a and the second limiting portion 213b prevents the waterproof assembly 2 from switching to the second state due to an accidental touch of the button 21 when in the first state. This prevents the electronic device from switching from the waterproof state to the breathable state due to an accidental touch, thereby preventing liquid from entering the interior of the electronic device's housing 1 due to an accidental touch, thereby improving the structural stability and waterproof performance of the waterproof assembly 2. Furthermore, when the waterproof assembly 2 needs to switch to the second state, the button 21 can be rotated to drive the first limiting portion 213a, thereby releasing the restriction on the axial movement H of the button 21, thereby allowing the waterproof assembly 2 to enter the second state. Therefore, while maintaining the waterproof performance of the electronic device, it can also conveniently switch between the first and second states.

[0096] Specifically, if Figure 7 As shown, the button 21 may further include a protrusion 214. Accordingly, the mounting portion 17 of the housing 1 may be provided with a slide 15, which is circumferentially arranged on the side wall of the second cavity 13. The slide 15 includes a first end 151 and a second end 152, and the second end 152 is provided with a bottom wall 155. The first end 151 is recessed toward the internal cavity of the electronic device to form a groove 14, as shown in FIG. Figure 3 As shown, the groove 14 extends along the axial direction H. In the first state, the protrusion 214 does not correspond to the groove 14 along the axial direction H. Figure 10As shown, the protrusion 214 can abut against the bottom wall 155 of the slide groove 15, thereby limiting the movement of the key shaft 21 toward the internal cavity of the electronic device through the bottom wall 155, that is, the waterproof component 2 can be limited to the first state by abutting against the bottom wall of the slide groove 155, preventing it from switching to the second state due to accidental touch.

[0097] When the waterproof component 2 needs to be switched to the second state, the button 21 can be rotated so that the protrusion 214 corresponds to the notch of the groove 14 along the axial direction H. Figure 15 As shown, at this time, under the action of external force, the protrusion 214 can move in the groove 14 along the axial direction H toward the inside of the electronic housing 1, so as to switch to Figure 12 The second state is shown. In this embodiment, the protrusion 214 serves as the first limiting portion 213a, and the bottom wall 155 of the chute 15 serves as the second limiting portion 213b. Therefore, when the protrusion 214 abuts the bottom wall 155 of the chute 15, the movement of the button 21 toward the inner cavity of the housing 1 is restricted. When the protrusion 214 rotates with the button 21 by a preset angle and aligns with the notch of the groove 14, the button 21 can move toward the inner cavity of the housing 1. The cooperation between the first limiting portion 213a and the second limiting portion 213b is achieved through the abutment between the protrusion 214 and the bottom wall 155 of the chute 15, which has the advantage of a simple structure.

[0098] More specifically, if Figure 7 and Figure 8 As shown, the key 21 may further include a key cap 212, which is connected to the key shaft 211 and can extend out of the second cavity 13 along the axial direction H, so that the user can drive the key shaft 211 to move by pressing the key cap 212. Specifically, when the waterproof component 2 is in the first state, as shown in FIG. Figure 10 As shown, by the protrusion 214 (arranged on the key cap 212) abutting against the bottom wall 155 of the slide groove 15 along the axial direction H, the key shaft 211 can be restricted from moving along the axial direction H toward the inner cavity of the housing 1, thereby restricting the waterproof component 2 from switching from the first state to the second state; when the waterproof component 2 needs to be in the second state (the electronic device needs to be in a breathable state), the user can rotate the key cap 212 to drive the protrusion 214 to rotate, so that the protrusion 214 rotates to a position aligned with the notch of the groove 14, as shown in FIG. Figure 15 As shown, at this time, the restriction on the key shaft 211 moving along the axial direction H toward the inner cavity of the housing 1 is released. The user presses the key cap 212 to move the key shaft 211 along the axial direction H toward the inner cavity of the housing 1, thereby switching the waterproof component 2 from the first state to the second state, as shown in FIG. Figure 12 shown.

[0099] Based on this, Figure 7As shown, the protrusion 214 is provided at the edge of the key cap 212, and the protrusion 214 protrudes outward along the radial direction R of the key cap 212. Figure 3 As shown, the groove 14 is connected to the second cavity 13 along the radial direction R, and the groove 14 is connected to the outside along the axial direction H.

[0100] In addition, in order to further prevent accidental touch, the waterproof component 2 can also be provided with a locking member, for example, the locking member can be a buckle and a slot that cooperate with each other, wherein one of the buckle and the slot is provided on the protrusion 214, and the other is provided on the mounting portion 17, such as Figure 10 As shown, when the waterproof component 2 is in the first state and the protrusion 214 abuts against the bottom wall 155 of the slide groove 15, the buckle is engaged with the slot, thereby limiting the protrusion 214 to this position, and then limiting the waterproof component 2 to the first state, further preventing accidental touch.

[0101] Specifically, combined Figure 3 and Figure 5 The chute 15 can be an arc-shaped structure, and the central angle α of the chute 15 is a preset angle, which is less than 360 degrees. In the rotation direction of the protrusion 214 (the circumferential direction of the chute 15), the chute 15 has a first end 151 and a second end 152 that are oppositely arranged, and the groove 14 is located at the first end 151, that is, when the protrusion 214 rotates to the first end 151, the protrusion 214 can be aligned with the groove 14 (at Figure 15 The state shown in FIG2 ) enables the protrusion 214 to move along the axial direction H along the groove 14 (in the process of movement, the protrusion 214 can be in the state shown in FIG2 ). Figure 11 and Figure 12 At the same time, when the waterproof component is in the first state, the protrusion 214 rotates to the second end 152, and the protrusion 214 abuts against the bottom wall 155 of the slide groove 15 (in the state shown). Figure 10 The state shown in the figure) limits the button 21 from moving in the axial direction H toward the inside of the housing 1. At this time, the distance between the protrusion 214 and the groove 14 is relatively far, which can further prevent the waterproof function of the electronic device from failing due to accidental touch (in a breathable state).

[0102] Therefore, in this embodiment, the central angle α of the chute 15 represents the angle that the button 21 needs to rotate to switch from the first state to the second state. When the central angle α is too small, there is still a high probability of accidental touches. However, when the central angle α is too large, the time required to rotate the button 21 is longer, and the rotation angle is too large, resulting in a poor user experience. To further reduce the probability of accidental touches of the button 21 and ensure the user experience, the central angle α of the chute 15 can be set between 70° and 100°. For example, the central angle α of the chute 15 can be set to 90°.

[0103] In addition, if Figure 13 and Figure 14 As shown, the chute 15 has a first side wall 153 and a second side wall 154 that are oppositely arranged along its circumference, and the first side wall 153 is located near the first end 151, and the second side wall 154 is located near the second end 152. Figure 13 As shown, when the protrusion 214 rotates to the second end 152 (away from the groove 14), the protrusion 214 can abut against the second side wall 154 (or may not abut), thereby indicating that the protrusion 214 has rotated to the position farthest from the groove 14. At this time, it can further prevent accidental touch from causing the waterproof function of the electronic device to fail; Figure 14 and Figure 15 As shown, when the protrusion 214 rotates to the first end 151 (and the protrusion 214 may or may not abut against the first side wall 153), it means that the protrusion 214 corresponds to the notch of the groove 14. At this time, the button 21 can be pressed in the direction toward the inside of the electronic device, so that the waterproof component 2 can switch from the first state to the second state, thereby realizing the ventilation function of the electronic device.

[0104] Therefore, in this embodiment, by setting the protrusion 214 to abut against the first side wall 153 and the second side wall 154 respectively, the user can easily sense the position of the protrusion 214, and can save the time of aligning the protrusion 214 with the groove 14, thereby facilitating the operation of the button 21 and improving work efficiency.

[0105] Specifically, if Figure 13 and Figure 14 As shown, the outer contour of the protrusion 214 is arc-shaped. Accordingly, the cross section of the groove 14 may also be arc-shaped, thereby reducing the wear of the protrusion 214 sliding along the groove 14 and reducing the wear of the protrusion 214 rotating along the slide groove 15.

[0106] In the above embodiments, Figure 6 and 7 As shown, the waterproof component 2 can also include an elastic component 23. Along the axial direction H, one end of the elastic component 23 is connected to the key 21 (can be connected to the keycap 212), and the other end is connected to the mounting portion 17, and the second section 211c of the key shaft 211 passes through the elastic component 23.

[0107] When the waterproof component 2 switches from the first state to the second state, the user presses the button 21 to move it along the axial direction H toward the inside of the housing 1, and during the movement, the elastic component 23 between the mounting portion 17 and the button 21 can be compressed, so that the waterproof component 2 is in the second state, and the electronic device is in the second state. Figure 12 The ventilation status shown.

[0108] When the exhaust is completed, the user removes the external force, and the button 21 automatically rebounds to its initial state under the action of the restoring force of the elastic component 23 .

[0109] Specifically, the elastic component 23 can be a spring, such as Figure 7 As shown, the spring has a third end 231 and a fourth end 232 . The third end 231 is connected to the mounting portion 17 , and the fourth end 232 can be connected to the keycap 212 of the key 21 .

[0110] In this embodiment, when the elastic component 23 is a spring, the initial state of the button 21 in the waterproof component 2 is Figure 15 The state shown in FIG. 1 shows that after the button 21 is released, the button 21 can automatically return to the state shown in FIG. Figure 15 The status shown. Figure 15 In the state shown (i.e., the protrusion 214 is located at the first end 151 of the chute 15, corresponding to the groove 14), the sealing component 22 is fitted on the first section 211b of the key shaft 211. At this time, the sealing component 22 and the first section 211b are tightly matched, and the sealing component 22 blocks the third cavity 11. That is, under the action of the rebound force of the elastic component 23, the waterproof component 2 can automatically switch from the second state to the first state, that is, the electronic device can automatically switch from the breathable state to the waterproof state. And by rotating the button 21, the protrusion 214 can be rotated to the second end 152 of the chute 15, as shown in FIG. Figure 9 and Figure 10 As shown, at this time, the protrusion 214 abuts against the bottom wall 155 of the slide groove 15 along the axial direction H, which can limit the button 21 from moving toward the inside of the housing 1 along the axial direction H, thereby limiting the button 21 to this state.

[0111] More specifically, combined Figure 16 、 Figure 18 and Figure 19 As shown, the mounting portion 17 is further provided with a first mounting groove 141 extending along the axial direction H. For example, the first mounting groove 141 can extend downward from the bottom wall of the groove 14 along the axial direction H. For example, the first mounting groove extends toward the inner cavity 16 of the housing 1. Figure 3 As shown, in the mounting portion 17, the height of the bottom wall 155 of the slide groove 15 is higher than the height of the bottom wall of the groove 14, and the height of the bottom wall of the groove 14 is higher than the height of the bottom wall of the first mounting groove 141, that is, along the axial direction H, the bottom wall 155 of the slide groove 15, the bottom wall of the groove 14 and the bottom wall of the first mounting groove 141 gradually approach the inner cavity of the shell 1.

[0112] At the same time, the third end 231 of the spring extends along the axial direction H, and the third end 231 extends into the first mounting groove 141. The third end 231 can cooperate with the first mounting groove 141, thereby achieving the connection between the spring and the mounting portion 17. In addition, the fourth end 232 can extend along the radial direction R. Accordingly, please refer to Figure 7 The keycap 212 is provided with a second mounting groove 212 a extending along the radial direction R, and the fourth end 232 can be engaged with the second mounting groove 212 a, thereby realizing the connection between the spring and the keycap 212 of the button 21.

[0113] In this embodiment, the provision of the first mounting groove 141 and the second mounting groove 212a can improve the connection reliability between the elastic component 23 and the mounting portion 17 and the button 21, and can prevent the elastic component 23 from becoming loose from the mounting portion 17 and the button 21 when the button 21 is rotated.

[0114] In addition, the initial state of the waterproof component 2 can be Figure 9 and Figure 10 The first state shown in FIG. 1 is shown in FIG. 2 , and at this time the protrusion 214 is located at the second end 152 of the slide groove 15. Therefore, the spring in this state can be set to a state with the least force, which helps to maintain the spring in this state, that is, the spring is not subjected to a torsional moment. When it is necessary to switch from the first state to the second state, the button 21 is rotated so that the protrusion 214 rotates toward the first end 151, and the spring is subjected to a torsional moment; when the button 21 is pressed so that the button 21 moves along the axial direction H toward the inside of the housing 1, the spring is subjected to an axial moment. After the external force disappears, under the action of the above-mentioned axial moment and torsional moment, the spring returns to its original position. Figure 9 and Figure 10 The state shown in FIG. 1 is displayed, thereby causing the waterproof component 2 to automatically switch from the second state to the first state.

[0115] In another specific embodiment, the elastic component 23 can also be a torsion spring. When the waterproof component 2 is in the first state and is switched to the second state, it is necessary to rotate the button 21 and press the button 21 toward the inner cavity 16 of the shell 1. During this process, the button 21 causes the torsion spring to deform. The torsion spring generates two directions of restoring force. The first direction is along the axial direction H and away from the inner cavity 16 of the shell 1. The second direction is from the first end 151 of the slide groove 15 to the second end 152. Therefore, after the external force on the button 21 is released, the button 21 is deformed under the action of the restoring force in the first direction and the restoring force in the second direction. Figure 14 The status shown is restored to Figure 13 In the state shown, the protrusion 214 automatically rebounds to the second end 152 of the chute 15. Figure 13 The state shown is an initial state (the protrusion 214 is located at the second end 152 of the slide groove 15 ).

[0116] In one embodiment, when a torsion spring is used as the elastic component 23, under the action of the restoring force generated by the torsion spring, the button 21 can automatically return to the position where the protrusion 214 is located at the second end 152 of the slide groove 15, that is, after the external force on the button 21 is removed, the axial H movement of the button 21 can be restricted without rotating the button 21, thereby avoiding the situation where the button 21 is accidentally touched due to the protrusion 214 not rotating to the second end, thereby improving the reliability of the waterproof component 2.

[0117] In the above embodiments, the key shaft 211 extends away from the end of the key cap 212 into the inner cavity 16 of the housing 1. Figure 6 and Figure 7 As shown, the waterproof assembly 2 may further include a gasket 24, which is fixed to the end of the key shaft 211 away from the keycap 212, that is, the gasket 24 is fixed to the end of the key shaft 211 that extends into the inner cavity of the housing 1, that is, the gasket 24 is located within the internal cavity of the housing 1, and the radial dimension R of the gasket 24 is greater than the radial dimension of the third cavity 11. When the key 21 moves in a direction away from the internal cavity of the electronic device, the gasket 24 can limit the travel of the key 21 toward the outside of the housing 1, thereby preventing the key 21 from separating from the housing 1 under the restoring force of the elastic component 23, thereby improving the installation reliability of the waterproof assembly 2 and the housing 1.

[0118] Specifically, if Figure 7 As shown, a slot 211a is provided at one end of the first section 211b of the key shaft 211 that extends into the interior of the housing 1. The slot 211a extends circumferentially along the key shaft 211 and can be a closed annular slot 211a. Accordingly, the gasket 24 is provided with a second through hole 241. When the gasket 24 is not mounted on the key shaft 211, the size of the second through hole 241 can be smaller than the size of the first section 211b. The gasket 24 can engage with the slot 211a of the key shaft 211, such as by snapping, thereby preventing the gasket 24 from separating from the key shaft 211.

[0119] In order to facilitate the engagement of the gasket 24 with the slot 211 a , the gasket 24 may be provided with a notch 242 , and the gasket 24 cooperates with the key shaft 211 through the notch 242 so that the gasket 24 is engaged in the slot 211 a .

[0120] In some embodiments, as Figure 6 and Figure 7As shown, a pressing piece 25 is provided on the side of the sealing component 22 facing the keycap 212. The pressing piece 25 is provided with a third through hole 251. The pressing piece 25 is sleeved on the key shaft 211 through the third through hole 251, and the pressing piece 25 is located between the elastic component 23 and the sealing component 22. When the waterproof assembly 2 is in the second state and the elastic component 23 is in a compressed state, the elastic component 23 applies pressure toward the interior of the housing 1 to the pressing piece 25, and the pressure acts on the sealing component 22 through the pressing piece 25, thereby further improving the sealing effect of the sealing component 22.

[0121] Among them, Figure 12 As shown, there is a fourth gap along the radial direction R between the third through hole 251 of the pressing plate 25 and the second section 211c of the key shaft 211. At this time, the inner cavity of the shell 1 and the external environment are connected through the above-mentioned third gap (the gap between the side wall of the third cavity 11 and the outer wall of the key shaft 211), the first gap (the gap between the inner wall of the sealing component 22 and the second section 211c of the key shaft 211 along the radial direction R), the fourth gap (the gap between the side wall of the third through hole 251 of the pressing plate 25 and the outer wall of the key shaft 211) and the second gap (the gap between the keycap 212 of the key 21 and the side wall of the second cavity 13), so that when the waterproof component 2 is in the second state (the electronic device is in a breathable state), the gas inside the shell 1 can be discharged.

[0122] The material of the above-mentioned button 21 includes metal or plastic, and the material of the gasket 24 and the pressing piece 25 includes metal to ensure the strength of the waterproof component 2; the material of the sealing component 22 includes rubber, and the rubber material has good ductility, so that the sealing component 22 can be flexibly abutted against the key shaft 211 and the shell 1 respectively to achieve a good sealing effect.

[0123] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A device, characterized in that The device comprises: a housing, the housing being provided with a first cavity, the first cavity being in communication with at least a portion of an internal cavity of the device, the first cavity being in communication with an external space where the device is located, and at least a portion of an internal cavity of the device being in communication with the external space where the device is located through the first cavity; A sealing component, the sealing component is an annular structure, the sealing component is provided with a first through hole, and the sealing component is disposed in the first cavity; A key, the key comprising a key shaft, the key shaft comprising a first section and a second section along the axial direction, wherein a radial cross-sectional dimension of the first section is greater than a radial cross-sectional dimension of the second section; The device has a waterproof state and a breathable state; In the waterproof state, the key shaft is inserted into the first through hole, and the outer wall of the first section is circumferentially abutted against the side wall of the first through hole, so that the internal cavity of the device is isolated from the liquid space in which the device is located; in the breathable state, the outer wall of the first section and the side wall of the first through hole change from circumferential abutment to circumferential non-abutment, and the first through hole is circumferentially sleeved on the outside of the second section. The radial cross-sectional dimension of the first through hole is larger than the radial cross-sectional dimension of the second section, so that the internal cavity of the device is connected to the external space in which the device is located, so that the gas in the internal cavity of the shell can be discharged.

2. The device according to claim 1, characterized in that The radial cross-section of the first section is circular, the radial cross-section of the second section is circular, and the diameter of the radial cross-section of the second section is smaller than the diameter of the radial cross-section of the first section.

3. The device according to claim 1, characterized in that The first through hole is a circular hole. The diameter of the first through hole in a natural state is larger than the diameter of the radial cross section of the second section. The diameter of the first through hole in a natural state is smaller than the diameter of the radial cross section of the first section.

4. The device according to claim 1, characterized in that The outer wall of the first section is in circumferential abutment with the side wall of the first through hole, including: the outer wall of the first section is in circumferential interference fit with the side wall of the first through hole.

5. The device according to any one of claims 1 to 4, characterized in that The housing further includes a second cavity, the second cavity being remote from the internal cavity of the device relative to the first cavity; The button further includes a first limiting portion; The side wall of the second cavity is further circumferentially provided with a sliding groove, and the first limiting portion can rotate along the sliding groove; The end portion of the chute includes a first end and a second end, the second end is provided with a bottom wall, and the first end extends toward the internal cavity of the device to form a groove; When the first limiting portion is located at the second end, the bottom wall limits the key shaft from moving relative to the sealing component toward the internal cavity of the device; When the first limiting portion rotates along the sliding groove to the first end, the key shaft can move along the groove relative to the sealing component toward the internal cavity of the device.

6. The device according to claim 5, characterized in that The key further comprises a key cap connected to the key shaft, and the first limiting portion is provided on the key cap; The second cavity is used to accommodate at least a portion of the keycap, and a radial cross-sectional dimension of the second cavity is larger than a radial cross-sectional dimension of the keycap.

7. The device according to claim 6, characterized in that The radial cross-sectional dimension of the second cavity is greater than the radial cross-sectional dimension of the first cavity; When the key shaft moves toward the internal cavity of the device relative to the sealing component, the upper surface of the first cavity is used to limit the movement stroke of the key cap toward the internal cavity of the device.

8. The device according to any one of claims 1 to 4, 6 to 7, characterized in that The first cavity includes a third cavity and a fourth cavity along the axial direction; The distance between the third cavity and the internal cavity of the device is smaller than the distance between the fourth cavity and the internal cavity of the device; The cross-sectional dimension of the third cavity along the radial direction is smaller than the cross-sectional dimension of the fourth cavity along the radial direction; The sealing component is disposed in the fourth cavity, and the bottom of the sealing component abuts against the upper surface of the third cavity.

9. The device according to claim 8, characterized in that The radial cross-sectional dimension of the first section is smaller than the radial cross-sectional dimension of the third cavity.

10. The device according to claim 6 or 7, characterized in that The key further includes an elastic component, which is sleeved on the key shaft and located between the key cap and the sealing component.

11. The device according to claim 10, characterized in that The key further includes a pressing piece, which is sleeved on the key shaft and arranged between the elastic component and the sealing component.

12. The device according to claim 10, characterized in that When the outer wall of the first section is in circumferential contact with the side wall of the first through hole, the elastic component is compressed to a first compression amount; When the first through hole is circumferentially sleeved on the outer side of the second section, the compression amount of the elastic component is the second compression amount, and the first compression amount is greater than the second compression amount.

13. The device according to claim 11 or 12, characterized in that When the first through hole is circumferentially sleeved on the outer side of the second section, under the action of the restoring force of the elastic component, the elastic component drives the button to move in a direction away from the internal cavity of the device.

14. The device according to claim 11 or 12, characterized in that The elastic component is a spring or a torsion spring.

15. The device according to claim 8, characterized in that The bottom of the sealing component is fixedly connected to the upper surface of the third cavity.

16. The device according to claim 15, characterized in that The outer side wall of the sealing component is fixedly connected to the side wall of the fourth cavity.

17. The device according to claim 15, characterized in that The key further comprises a gasket and a keycap, wherein the keycap is connected to the key shaft, and the gasket is sleeved on an end of the key shaft away from the keycap; The gasket is located in the internal cavity of the device, and the radial dimension of the gasket is larger than the radial dimension of the third cavity; When the button moves in a direction away from the internal cavity of the device, the gasket restricts the button from separating from the device.

18. The apparatus according to any one of claims 1 to 4, or any one of claims 6 to 7, or claim 9, 11, 12 or 15, characterized in that The device includes electronic components located in the interior cavity of the housing.

19. A waterproof component, characterized in that: The waterproof component includes: A sealing component, the sealing component is an annular structure and is provided with a first through hole; A key, the key comprising a key shaft, the key shaft comprising a first section and a second section along the axial direction, wherein a radial cross-sectional dimension of the first section is greater than a radial cross-sectional dimension of the second section; The waterproof component has a waterproof state and a breathable state; In the waterproof state, the first through hole is circumferentially sleeved on the outside of the first section, and the outer wall of the first section is circumferentially abutted against the side wall of the first through hole; In the breathable state, the outer wall of the first section and the side wall of the first through hole change from circumferential abutment to circumferential non-abutment, the first through hole is circumferentially sleeved on the outside of the second section, and the radial cross-sectional dimension of the first through hole is larger than the radial cross-sectional dimension of the second section.

20. The waterproof assembly according to claim 19, characterized in that: The key further includes a key cap connected to the key shaft, and the key cap is provided with a first limiting portion.

21. The waterproof assembly according to claim 20, characterized in that: The key further includes an elastic component, which is sleeved on the key shaft and located between the key cap and the sealing component.

22. The waterproof assembly according to claim 21, characterized in that: When the outer wall of the first section is in circumferential contact with the side wall of the first through hole, the elastic component is compressed to a first compression amount; When the first through hole is circumferentially sleeved on the outer side of the second section, the compression amount of the elastic component is the second compression amount, and the first compression amount is greater than the second compression amount.

23. The waterproof assembly according to claim 21, characterized in that: The key further includes a pressing piece, which is sleeved on the key shaft and arranged between the elastic component and the sealing component.

24. The waterproof assembly according to any one of claims 20 to 23, characterized in that: The key further comprises a gasket, which is sleeved on an end of the key shaft away from the key cap.

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