Housing components, electronic devices and wearable devices

Abstract

The present application relates to a shell assembly, an electronic device and a wearable device. The shell assembly includes a shell, a waterproof breathable module and a pressure plate. The inner surface of the shell is provided with a mounting groove, and the bottom of the mounting groove is provided with an air hole extending to the outer surface of the shell. The waterproof breathable module is arranged in the mounting groove, and the waterproof breathable module includes a buffer and a waterproof breathable membrane. The waterproof breathable membrane covers the air hole, and the buffer covers the waterproof breathable membrane. The pressure plate covers and presses the buffer, and the pressure plate is buckled with the shell. When the above-mentioned shell assembly is applied to a wearable device, the air hole of the shell can not only balance the air pressure inside and outside the wearable device, but also enable the wearable device to maintain a high waterproof performance. The buffer can eliminate the gap between the waterproof breathable membrane and the pressure plate, so that the waterproof breathable membrane can be more effectively pressed against the pressure plate, thereby ensuring the working reliability of the waterproof breathable membrane. The assembly of the shell assembly is relatively convenient, and the assembly dimension chain is short, which can simplify the assembly steps and improve the product yield.

Description

Technical Field

[0001] The present application relates to the technical field of wearable devices, and in particular to a shell component, an electronic device, and a wearable device. Background Art

[0002] The outer shell of wearable devices such as smart watches generally has air holes, which can be used to balance the air pressure inside and outside the wearable device. The setting of air holes reduces the waterproof performance of the wearable device. Summary of the Invention

[0003] A first aspect of an embodiment of the present application discloses a shell assembly that can be used for a wearable device to improve the waterproof performance of the wearable device.

[0004] A shell assembly comprising:

[0005] A housing, wherein an inner surface of the housing is provided with a mounting groove, and a bottom of the mounting groove is provided with an air hole extending to the outer surface of the housing;

[0006] a waterproof breathable module, disposed in the mounting groove, the waterproof breathable module comprising a buffer and a waterproof breathable membrane, the waterproof breathable membrane covering the air holes, and the buffer covering the waterproof breathable membrane; and

[0007] A pressing plate covers and presses the buffer component, and the pressing plate is buckled with the shell.

[0008] When the above-mentioned shell assembly is applied to a wearable device, since the shell is provided with air holes, and the air holes are covered by a waterproof and breathable membrane, the waterproof and breathable membrane has waterproof and breathable properties. Therefore, the air holes can not only balance the air pressure inside and outside the wearable device, but also enable the wearable device to maintain a high level of waterproof performance. The buffer component can eliminate the gap between the waterproof and breathable membrane and the pressure plate, so that the pressure plate can more effectively press the waterproof and breathable membrane, thereby ensuring the working reliability of the waterproof and breathable membrane. The above-mentioned shell assembly, the pressure plate, the waterproof and breathable module and the shell are relatively convenient to assemble, and the assembly dimension chain is relatively short, which can not only simplify the assembly steps and improve production efficiency, but also ensure the matching accuracy and improve the product yield.

[0009] In one embodiment, the buffer member is provided with a through hole corresponding to the air hole.

[0010] In one embodiment, the pressing plate is a steel sheet or a plastic sheet.

[0011] In one embodiment, the buffer member is foam.

[0012] In one embodiment, the waterproof breathable module includes a first adhesive layer, and the first adhesive layer is arranged between the waterproof breathable membrane and the buffer component.

[0013] In one embodiment, the waterproof breathable module includes a second adhesive layer, which is provided on a side of the waterproof breathable membrane away from the buffer component, and the waterproof breathable module is bonded to the housing via the first adhesive layer.

[0014] In one embodiment, the side wall of the mounting groove is provided with a first boss and a second boss, the first boss and the second boss are arranged opposite to each other, the first boss and the bottom of the mounting groove form a first gap, the second boss and the bottom of the mounting groove form a second gap, one end of the pressure plate is inserted into the first gap, and the other end of the pressure plate is inserted into the second gap.

[0015] In one embodiment, the pressure plate includes a main body and a first elastic arm and a second elastic arm extending from opposite ends of the main body, the main body is provided with a through hole corresponding to the air hole, the first elastic arm is inserted into the first interval and pressed against the first boss, the second elastic arm is inserted into the second interval and pressed against the second boss, and the main body is pressed against the waterproof and breathable module.

[0016] In one embodiment, at least one of the first elastic arm and the second elastic arm is bent and protrudes from a side of the main body facing the waterproof breathable module.

[0017] In one embodiment, the first elastic arm and the second elastic arm are axially symmetrically connected to the main body, and the side of the first boss facing the bottom of the mounting groove and the side of the second boss facing the bottom of the mounting groove are flush.

[0018] In one embodiment, the distance between the first boss and the second boss is d1, the distance between the end of the first elastic arm and the end of the second elastic arm is d2, d1 is smaller than d2, and d2 is smaller than the width of the mounting groove.

[0019] In one embodiment, the pressure plate includes a first extension arm and a second extension arm extending from opposite ends of the main body, the first extension arm and the first elastic arm are located at the same end of the main body, and the second extension arm and the second elastic arm are located at the same end of the main body, and the side wall of the mounting groove can limit the movement range of the first extension arm and the second extension arm.

[0020] In one embodiment, the width of the mounting slot is D1, the distance between the end of the first extension arm and the end of the second extension arm is D2, and the difference between D1 and D2 is less than or equal to 1 mm.

[0021] In one embodiment, both the first extension arm and the second extension arm are bent and protrude from a side of the main body facing the waterproof breathable module.

[0022] In one embodiment, the pressure plate includes a first limiting arm and a second limiting arm extending from opposite ends of the main body, the first limiting arm and the first elastic arm are located at the same end of the main body, the second limiting arm and the second elastic arm are located at the same end of the main body, the first limiting arm and the second limiting arm are located on one side of the first elastic arm, and the first extension arm and the second extension arm are located on the other side of the first elastic arm; the shell is provided with a first limiting groove and a second limiting groove connected to the mounting groove, the first limiting arm is at least partially accommodated in the first limiting groove and limited by the first boss and the side wall of the first limiting groove, the second limiting arm is at least partially accommodated in the second limiting groove and limited by the second boss and the side wall of the second limiting groove.

[0023] In one embodiment, the first limiting arm and the second limiting arm are both bent and protruded from a side of the main body away from the waterproof and breathable module.

[0024] In one embodiment, the first limiting arm and the first extending arm are both spaced apart from the first elastic arm, and the second limiting arm and the second extending arm are both spaced apart from the second elastic arm.

[0025] A second aspect of an embodiment of the present application discloses an electronic device that can be used in a wearable device to improve the waterproof performance of the wearable device.

[0026] An electronic device comprises a display screen module and the above-mentioned shell assembly, wherein the inner surface of the shell forms a mounting cavity, and the display screen module covers one end of the mounting cavity.

[0027] A third aspect of an embodiment of the present application discloses a wearable device, which can achieve relatively high waterproof performance.

[0028] A wearable device comprises a strap and the above-mentioned electronic device, wherein the strap is connected to the housing and is configured to enable the electronic device to be worn on the arm of a user. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 is a schematic diagram of a wearable device according to an embodiment;

[0031] Figure 2 is a schematic diagram of an electronic device of a wearable device according to an embodiment;

[0032] Figure 3 is a schematic diagram of a housing assembly of a wearable device according to an embodiment;

[0033] Figure 4 for Figure 3 an exploded view of a housing assembly of the illustrated wearable device;

[0034] Figure 5 for Figure 3 a front view of a housing assembly of the illustrated wearable device;

[0035] Figure 6 for Figure 3 a top view of a housing assembly of the wearable device shown;

[0036] Figure 7 for Figure 6 a partial cross-sectional view of a housing assembly of the wearable device shown;

[0037] Figure 8 for Figure 4 A schematic diagram of a pressure plate of a housing assembly of the wearable device shown;

[0038] Figure 9 for Figure 4 A schematic diagram of a housing component of a wearable device in a certain assembled state is shown. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0040] refer to Figure 1 and Figure 2The wearable device 10 includes an electronic device 100 and a strap 200. The strap 200 is installed on the electronic device 100 and is configured to be able to wear the electronic device 100 on the user's arm. The electronic device 100 includes a shell assembly 110 and electronic components such as a circuit board and a battery. The shell assembly 110 is provided with a mounting cavity, and the electronic components such as the circuit board and the battery are arranged in the mounting cavity. The shell assembly 110 may further include a shell 111 and a functional structure arranged in the shell 111. The shell 111 may be made of non-metallic materials such as plastic, rubber, silicone, wood, ceramic or glass. The shell 111 may also be made of metal materials such as stainless steel, aluminum alloy or magnesium alloy. Of course, the shell 111 may also be a metal injection molded part, that is, the metal material is used to ensure the structural rigidity of the shell 111, and the inner surface of the shell 111 is formed by injection molding with protrusions, grooves, threaded holes and other structures for assembly and positioning. The functional structure may be a key structure, for example, the shell 111 is provided with a key hole, and the mechanical key is installed in the key hole. The functional structure may also be a contact structure, for example, the housing 111 is provided with a mounting hole, and a metal contact is inserted into the mounting hole and electrically connected to the circuit board for charging or data transmission of the electronic device 100. The functional structure may also be an air hole structure, that is, the housing 111 is provided with air holes, and the air holes can be used to balance the air pressure inside and outside the electronic device 100, or for sound transmission. For example, the air holes can be used for sound input of a microphone or sound output of a speaker. In some embodiments, the wearable device 10 is a smart watch, and the mounting cavity can be used to install electronic components such as a battery, a circuit board, a display screen module 120, and a biosensor. The circuit board can integrate electronic components such as a processor, a storage unit, and a communication module, and the battery can power the circuit board, the display screen module 120 and other electronic components.

[0041] The display screen module 120 covers one end of the mounting cavity and is connected to the housing 111. It can be used to display information and provide an interactive interface for the user. The display screen module 120 can further include a screen and a cover plate covering the screen. The screen can be an LCD (Liquid Crystal Display) screen or an OLED (Organic Light-Emitting Diode) screen, etc. The cover plate can be a glass cover plate or a sapphire cover plate, etc. The display screen module 120 can have a touch function, but the touch function is not required, and the display screen module 120 is not required. Biosensors can be used to detect biological data such as heart rate, respiratory rate, blood pressure or body fat. In some embodiments, the biosensor can also be used to detect exercise status, such as for step counting. In some embodiments, the wearable device 10 can be a sports watch or a conventional watch, etc. The common form of sports watches is electronic watches, and the common form of conventional watches is mechanical watches. In some other embodiments, the wearable device 10 can also be a smart bracelet, etc.

[0042] The housing 111 is roughly rectangular, and the four corners of the rectangle can be chamfered to form arc transitions to give the wearable device 10 a better appearance. In other embodiments, the housing 111 can also be circular. The side of the housing 111 can be provided with a slot 103 for installing the strap 200. Figure 1 The strap 200 is strip-shaped and can be installed in the housing 111 through the slot 103 and form a secure connection with the housing 111, allowing the electronic device 100 to be securely worn on the user's arm. In some embodiments, the strap 200 can also be easily detached from the housing 111, allowing the user to easily replace the strap 200. For example, a user can purchase multiple styles of straps 200 and change them according to the usage scenario to improve convenience. For example, a user can use a more formal strap 200 in formal occasions and a more casual strap 200 in leisure and entertainment settings. In some embodiments, the strap 200 is divided into two sections. The slots 103 are respectively provided at opposite ends of the electronic device 100. Each end of the two straps 200 is connected to the electronic device 100. The ends of the two straps 200 facing away from the electronic device 100 can be interlocked to form a storage space, allowing the wearable device 10 to be worn on the user's arm through the strap 200. In other embodiments, the strap 200 can be a one-piece structure, with both ends of the strap 200 connected to the electronic device 100 respectively. The strap 200 can adjust the size of the accommodation space through other structures such as buckles, snaps, elastic expansion, etc. to facilitate user wearing.

[0043] refer to Figure 3 and Figure 4The inner surface of the housing 111 is provided with a mounting groove 105, and the bottom of the mounting groove 105 is provided with an air hole 107 extending to the outer surface of the housing 111. The housing assembly 110 further includes a waterproof breathable module 113 and a pressure plate 115. The waterproof breathable module 113 is disposed in the mounting groove 105 and includes a waterproof breathable membrane 113a and a buffer 113b. The waterproof breathable membrane 113a covers the air hole 107, and the buffer 113b covers the waterproof breathable membrane 113a. The pressure plate 115 covers and presses against the buffer 113b. The pressure plate 115 is engaged with the housing 111, so that the buffer 113b presses against the waterproof breathable membrane 113a, maintaining contact between the waterproof breathable membrane 113a and the housing 111. The microstructure of the waterproof and breathable membrane 113a makes it waterproof and breathable, so the pores 107 can be used to balance the air pressure inside and outside the electronic device 100, while also allowing the electronic device 100 to maintain a high level of waterproof performance. Furthermore, in some embodiments, the pressing plate 115 is a metal sheet that can be formed using a stamping and bending process, making it relatively easy to process. In other embodiments, the pressing plate 115 can be a plastic sheet. The pressing plate 115 has a simple structure, is easy to manufacture, takes up little space, and has significant cost advantages, meeting the development needs of increasingly lightweight, compact, and modular consumer electronic products.

[0044] Furthermore, in some embodiments, the buffer 113b is a foam that can eliminate the gap between the pressure plate 115 and the waterproof breathable membrane 113a, allowing the pressure plate 115 to better press the waterproof breathable membrane 113a against the housing 111. Furthermore, the waterproof breathable module 113 can include a first adhesive layer disposed between the waterproof breathable membrane 113a and the buffer 113b. The first adhesive layer ensures a reliable connection between the waterproof breathable membrane 113a and the buffer 113b, thereby improving sealing and waterproofing performance. Furthermore, the waterproof breathable module 113 can include a second adhesive layer disposed on the side of the waterproof breathable membrane 113a facing away from the buffer 113b. The waterproof breathable module 113 is bonded to the housing 111 via the second adhesive layer. The second adhesive layer can ensure a reliable connection between the waterproof breathable membrane 113a and the housing 111, and enhance sealing and waterproofing performance.

[0045] During the assembly process of the shell assembly 110, the waterproof breathable module 113 can be first attached to the bottom of the mounting groove 105 so that the waterproof breathable membrane 113a is adhered to the shell 111 through the second adhesive layer, and then the pressure plate 115 is snapped onto the shell 111, so that the buffer 113b is pressed by the pressure plate 115, and the waterproof breathable membrane 113a is reliably pressed against the shell 111 to ensure the working reliability of the waterproof breathable membrane 113a. The assembly method of the shell assembly 110 is simple. Compared with the conventional hot melt and screw locking scheme, it greatly simplifies the assembly steps and improves production efficiency. Since the assembly process of the waterproof breathable membrane 113a only involves the coordination of the shell 111, the waterproof breathable module 113, and the pressure plate 115, the assembly dimension chain is short, ensuring the accuracy of the coordination. In addition, the above-mentioned assembly method reduces the risk of damage to the waterproof breathable membrane 113a during the assembly process, improves the reliability and yield of the product, makes the product more competitive, and can enhance the user experience.

[0046] When the shell assembly 110 is applied to the wearable device 10, since the shell 111 is provided with an air hole 107, and the air hole 107 is covered by the waterproof breathable membrane 113a, which has waterproof and breathable properties, the air hole 107 can not only balance the air pressure inside and outside the wearable device 10, but also enable the wearable device 10 to maintain a high waterproof performance. The buffer member 113b can eliminate the gap between the waterproof breathable membrane 113a and the pressure plate 115, so that the waterproof breathable membrane 113a can be more effectively pressed against the pressure plate 115, thereby ensuring the working reliability of the waterproof breathable membrane 113a. The assembly of the shell assembly 110, the pressure plate 115, the waterproof breathable module 113 and the shell 111 is relatively convenient, and the assembly dimension chain is relatively short, which can not only simplify the assembly steps and improve production efficiency, but also ensure the matching accuracy and improve the product yield.

[0047] refer to Figure 4In some embodiments, the buffer member 113b is provided with a through hole 113c corresponding to the air hole 107. The through hole 113c is circumferentially closed and corresponds to the position of the air hole 107. That is, air in the through hole 113c can pass through the waterproof breathable membrane 113a and enter the air hole 107, and vice versa. Furthermore, the cross-sectional area of ​​the through hole 113c can be larger than the cross-sectional area of ​​the air hole 107, so that the portion of the buffer member 113b circumferential to the through hole 113c can be arranged around the air hole 107. The pressure plate 115 can be configured to at least press against this portion of the buffer member 113b, so that the waterproof breathable membrane 113a can be well adhered to the housing 111 circumferential to the air hole 107, thereby ensuring the operational reliability of the waterproof breathable membrane 113a. In some embodiments, the outer contour of the buffer 113b is similar to the outer contour of the waterproof breathable membrane 113a, and both can be rectangular sheets. The pressure plate 115 can be configured to press against the entire buffer 113b to ensure the reliability of the connection between the waterproof breathable membrane 113a and the shell 111, and to ensure the working reliability of the waterproof breathable membrane 113a.

[0048] Furthermore, the pressure plate 115 is provided with a through hole 115a corresponding to the air hole 107, and the through hole 115a is connected to the through hole 113c. Air from the through hole 115a and the through hole 113c can pass through the waterproof breathable membrane 113a and enter the air hole 107, or air from the air hole 107 can pass through the waterproof breathable membrane 113a and enter the through hole 113c and the through hole 115a. The through hole 115a can be connected to the installation cavity, and the cross-sectional area of ​​the through hole 115a can be less than or equal to the cross-sectional area of ​​the through hole 113c, so that the portion of the pressure plate 115 circumferentially of the through hole 115a can effectively press against the buffer 113b, thereby maintaining the working reliability of the waterproof breathable membrane 113a. Furthermore, in some embodiments, the pressure plate 115 is roughly rectangular, and its width direction is roughly parallel to the thickness direction (Z-axis direction) of the electronic device 100. For a housing 111 having a rectangular frame shape, the length direction of the pressing plate 115 can extend along the length direction (X-axis direction) of the housing 111. This application takes the housing 111 having a rectangular frame shape as an example for explanation. In other embodiments, the housing 111 can have other shapes, such as a circle. The aperture of the air hole 107 can be set to be relatively small to reduce the area of ​​the waterproof and breathable module 113 and the pressing plate 115, thereby reducing the space occupied by the waterproof and breathable module 113, and thus facilitating the lightweight design of the electronic device 100. Of course, in other embodiments, the waterproof and breathable membrane 113a, the buffer member 113b and the pressing plate 115 can have other shapes.

[0049] refer to Figure 5 and Figure 6In the longitudinal direction (X-axis direction) of the housing 111, the side wall of the mounting groove 105 is provided with a first boss 111a and a second boss 111b, and the first boss 111a and the second boss 111b are arranged opposite to each other. Figure 7 The first boss 111a forms a first gap 111c with the bottom of the mounting groove 105, and the second boss 111b forms a second gap 111d with the bottom of the mounting groove 105. One end of the pressing plate 115 is inserted into the first gap 111c, and the other end of the pressing plate 115 is inserted into the second gap 111d. As the pressing plate 115 presses against the waterproof and breathable module 113, the reaction force exerted by the waterproof and breathable module 113 on the pressing plate 115 causes the side of the pressing plate 115 facing away from the waterproof and breathable module 113 to press against the first and second bosses 111a and 111b, thereby securely fastening the pressing plate 115 to the housing 111.

[0050] Specifically, combined Figure 7 and Figure 8 The pressure plate 115 includes a main body 1151 and first and second elastic arms 1152 and 1153 extending from opposite ends of the main body 1151. The main body 1151 is generally rectangular, with a through hole 115a provided therein. The main body 1151 presses against the waterproof and breathable module 113. The first elastic arm 1152 is inserted into the first spacer 111c and presses against the first protrusion 111a. The second elastic arm 1153 is inserted into the second spacer 111d and presses against the second protrusion 111b. The main body 1151 presses against the waterproof and breathable module 113. Furthermore, at least one of the first and second elastic arms 1152 and 1153 is bent and protrudes from the side of the main body 1151 facing the waterproof and breathable module 113. Furthermore, the first elastic arm 1152 and the second elastic arm 1153 are axially symmetrically connected to the main body 1151. This structure of the pressure plate 115 is relatively simple and easy to process and mold for mass production. Regarding the first elastic arm 1152 and the second elastic arm 1153, which are axially symmetrically arranged on either side of the main body 1151, the side of the first boss 111a facing the bottom of the mounting groove 105 and the side of the second boss 111b facing the bottom of the mounting groove 105 can be aligned, so that the main body 1151 can be positioned substantially parallel to the bottom of the mounting groove 105, thereby ensuring that the waterproof and breathable membrane 113a is evenly stressed.

[0051] Further, refer to Figure 7 and Figure 8 The distance between the first boss 111a and the second boss 111b is d1, and the distance between the end of the first elastic arm 1152 and the end of the second elastic arm 1153 is d2, where d1 is smaller than d2. Figure 9During assembly of the pressure plate 115 with the housing 111, the first elastic arm 1152 can be inserted into the first gap 111c. The pressure plate 115 is then rotated with the first boss 111a as a fulcrum, causing the second elastic arm 1153 to approach and abut the second boss 111b. Further pressing of the second elastic arm 1153 causes it to elastically deform and pass over the second boss 111b to enter the second gap 111d. The reaction force of the waterproof and breathable module 113 on the pressure plate 115 causes the first elastic arm 1152 to press against the first boss 111a, and the second elastic arm 1153 to press against the second boss 111b. This forces the pressure plate 115 to press against the waterproof and breathable module 113, and limits its movement along its thickness direction via the first and second bosses 111a and 111b. The matching structure of the mounting groove 105 and the pressing plate 115 simplifies the assembly of the pressing plate 115 and the housing 111 , thereby improving the assembly efficiency while ensuring the reliability of the pressing plate 115 pressing against the waterproof breathable membrane 113 a .

[0052] Furthermore, a coordinate system is established with the length direction of the mounting groove 105 as the X axis, the width direction as the Y axis, and the depth direction as the Z axis. Figure 7 and Figure 8 The width of the mounting groove 105 is D1, and d2 is smaller than the width D1 of the mounting groove 105. That is, in the direction of the extension of the X-axis, the two opposing side walls of the mounting groove 105 do not exert an extrusion force along the X-axis on the pressure plate 115. This prevents the main body 1151 of the pressure plate 115 from being deformed by pressure and bulging toward the side away from the air hole 107 (in the Y-axis direction), thereby ensuring the reliability of the pressure plate 115 pressing against the waterproof breathable module 113. This structural arrangement also prevents the pressure plate 115 from exerting a tangential shear force on the waterproof breathable module 113 due to the extrusion force along the width of the mounting groove 105 (in the X-axis direction), further ensuring the reliability of the pressure plate 115 pressing against the waterproof breathable module 113 and preventing damage to the waterproof breathable membrane 113a due to shear force during assembly.

[0053] Further, refer to Figure 8 The pressure plate 115 further includes a first extension arm 1154 and a second extension arm 1155 extending from opposite ends of the main body 1151. The first extension arm 1154 and the first elastic arm 1152 are located at the same end of the main body 1151, and the second extension arm 1155 and the second elastic arm 1153 are located at the same end of the main body 1151. The side wall of the mounting groove 105 can limit the movement range of the first extension arm 1154 and the second extension arm 1155. Specifically, referring to Figure 8 The distance between the end of the first extension arm 1154 and the end of the second extension arm 1155 is D2. Figure 7, the difference between D1 and D2 is less than or equal to 1 mm. For example, the difference between D1 and D2 can be 0, or 0.1 mm, or 0.2 mm, or 0.3 mm, or 0.5 mm, or 0.8 mm, or 1 mm, etc. With the above arrangement, in the X-axis direction, the side walls of the mounting groove 105 limit the movement of the pressing plate 115 in the X-axis direction through the first extension arm 1154 and the second extension arm 1155, and the opposite side walls of the mounting groove 105 do not generate an extrusion force on the pressing plate 115 along the width direction (X-axis direction) of the mounting groove 105, thereby preventing the main body 1151 of the pressing plate 115 from being deformed by pressure and bulging toward the side away from the air hole 107, thereby ensuring the reliability of the pressing plate 115 pressing against the waterproof breathable module 113. This structural arrangement also prevents the pressure plate 115 from generating tangential shear forces on the waterproof breathable module 113 due to the extrusion force along the width of the mounting slot 105, further ensuring the reliability of the pressure plate 115's pressure on the waterproof breathable module 113 and preventing damage to the waterproof breathable membrane 113a due to shear forces during assembly. In particular, since the first elastic arm 1152 and the second elastic arm 1153 need to undergo elastic deformation, their dimensions may change. After the first extension arm 1154 and the second extension arm 1155, which do not withstand the extrusion force, limit the movement of the pressure plate 115 in the X-axis direction of the mounting slot 105, the first elastic arm 1152 and the second elastic arm 1153 no longer need to perform the X-axis limit function, thereby further ensuring the reliability of the pressure plate 115's pressure on the waterproof breathable module 113.

[0054] Furthermore, the first extension arm 1154 and the second extension arm 1155 are both bent and protruded from the side of the main body 1151 facing the waterproof breathable module 113. This structure, combined with the structure in which the first elastic arm 1152 and the second elastic arm 1153 are both bent and protruded from the main body 1151 facing the waterproof breathable module 113, can form a recessed area on the pressure plate 115 facing the waterproof breathable module 113 for accommodating the waterproof breathable module 113. This recessed area can then be used to achieve initial positioning of the waterproof breathable module 113 and the pressure plate 115 during assembly, thereby improving assembly convenience and reliability.

[0055] refer to Figure 8 The pressure plate 115 may further include a first limiting arm 1156 and a second limiting arm 1157 extending from opposite ends of the main body 1151. The first limiting arm 1156 and the first elastic arm 1152 are located at the same end of the main body 1151, and the second limiting arm 1157 and the second elastic arm 1153 are located at the same end of the main body 1151. The first limiting arm 1156 and the second limiting arm 1157 are located on one side of the first elastic arm 1152, and the first extension arm 1154 and the second extension arm 1155 are located on the other side of the first elastic arm 1152. Figure 9The housing 111 is provided with a first limiting groove 111e and a second limiting groove 111f connected to the mounting groove 105, and the first limiting groove 111e and the second limiting groove 111f both extend along the X-axis direction. The first limiting arm 1156 is at least partially accommodated in the first limiting groove 111e and is limited by the first boss 111a and the side wall of the first limiting groove 111e, and the second limiting arm 1157 is at least partially accommodated in the second limiting groove 111f and is limited by the second boss 111b and the side wall of the second limiting groove 111f. Specifically, in some embodiments, the first limiting arm 1156 and the second limiting arm 1157 are both bent and protruded from the side of the main body 1151 facing away from the waterproof and breathable module 113, and the first limiting arm 1156 and the second limiting arm 1157 can be arranged axially symmetrically at both ends of the main body 1151. The first boss 111 a and the side wall of the first limiting groove 111 e limit the movement of the pressing plate 115 in the Z-axis direction, and the second boss 111 b and the side wall of the second limiting groove 111 f limit the movement of the pressing plate 115 in the Z-axis direction.

[0056] During the assembly process of the pressure plate 115 and the shell 111, the first elastic arm 1152 can be inserted into the first gap 111c, the first limiting arm 1156 can be inserted into the first limiting groove 111e, and then the pressure plate 115 can be rotated with the first boss 111a as the fulcrum to make the second elastic arm 1153 approach and abut the second boss 111b; when the second elastic arm 1153 continues to be pressed, the second elastic arm 1153 produces elastic deformation and passes over the second boss 111b to enter the second gap 111d, and the second limiting arm 1157 enters the second limiting groove 111f. By utilizing the reaction force of the waterproof and breathable module 113 on the pressure plate 115, the first elastic arm 1152 can be pressed against the first boss 111a, and the second elastic arm 1153 can be pressed against the second boss 111b, so that the pressure plate 115 is pressed tightly against the waterproof and breathable module 113, and the movement of the pressure plate 115 along the Y-axis direction is limited by the first boss 111a and the second boss 111b. Since the cooperation between the mounting groove 105 and the first extension arm 1154 and the second extension arm 1155 limits the movement of the pressure plate 115 in the X-axis direction, the cooperation between the first limiting arm 1156 and the first limiting groove 111e, and the cooperation between the second limiting arm 1157 and the second limiting groove 111f limit the movement of the pressure plate 115 in the Z-axis direction, and the cooperation between the first elastic arm 1152 and the first boss 111a, and the cooperation between the second elastic arm 1153 and the second boss 111b limit the movement of the pressure plate 115 in the Y-axis direction, the pressure plate 115 can be completely fixed to the shell 111, thereby realizing effective fixation of the waterproof and breathable membrane 113a, avoiding problems such as loosening and deformation under the impact of water pressure.

[0057] Further, refer to Figure 8In the embodiment of the present application, the first limiting arm 1156 and the first extension arm 1154 are spaced apart from the first elastic arm 1152, and the second limiting arm 1157 and the second extension arm 1155 are spaced apart from the second elastic arm 1153. In conjunction with the coordinate system, that is, in the Z-axis direction, the first limiting arm 1156, the first elastic arm 1152, and the first extension arm 1154 are sequentially spaced apart, and the second limiting arm 1157, the second elastic arm 1153, and the second extension arm 1155 are sequentially spaced apart. This structural arrangement can reduce the influence of the deformation of the first elastic arm 1152 on the limiting function of the first extension arm 1154 and the first limiting arm 1156, and reduce the influence of the deformation of the second elastic arm 1153 on the limiting function of the second extension arm 1155 and the second limiting arm 1157, thereby improving the reliability of assembly positioning.

[0058] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A shell assembly, characterized in that: include: A housing, wherein an inner surface of the housing is provided with a mounting groove, a bottom of the mounting groove is provided with an air hole extending to the outer surface of the housing, a side wall of the mounting groove is provided with a first boss and a second boss, the first boss and the second boss are arranged opposite to each other, the first boss and the bottom of the mounting groove form a first gap, and the second boss and the bottom of the mounting groove form a second gap; a waterproof breathable module, disposed in the mounting groove, the waterproof breathable module comprising a buffer and a waterproof breathable membrane, the waterproof breathable membrane covering the air holes, and the buffer covering the waterproof breathable membrane; and A pressure plate covers and presses the buffer member, and the pressure plate is buckled with the shell, and the pressure plate includes a main body, a first elastic arm and a second elastic arm extending from opposite ends of the main body, a first extension arm and a second extension arm extending from opposite ends of the main body, and a first limiting arm and a second limiting arm extending from opposite ends of the main body, the first extension arm, the first elastic arm and the first limiting arm are located at the same end of the main body, the second extension arm, the second elastic arm and the second limiting arm are located at the same end of the main body, the first limiting arm and the second limiting arm are located on one side of the first elastic arm, and the first extension arm and the second limiting arm are located on the same side of the first elastic arm. The second extension arm is located on the other side of the first elastic arm, the first elastic arm is inserted in the first interval and pressed against the first boss, the second elastic arm is inserted in the second interval and pressed against the second boss, and the main body is pressed against the waterproof and breathable module; the side walls of the mounting groove can limit the movement range of the first extension arm and the second extension arm; the shell is provided with a first limiting groove and a second limiting groove connected to the mounting groove, the first limiting arm is at least partially accommodated in the first limiting groove and limited by the first boss and the side wall of the first limiting groove, the second limiting arm is at least partially accommodated in the second limiting groove and limited by the second boss and the side wall of the second limiting groove.

2. The shell assembly according to claim 1, wherein The buffer member is provided with a through hole corresponding to the air hole.

3. The shell assembly according to claim 2, wherein: The pressing plate is a steel sheet or a plastic sheet.

4. The shell assembly according to claim 2, wherein: The buffer component is foam.

5. The shell assembly according to claim 2, wherein: The waterproof and breathable module includes a first adhesive layer, which is arranged between the waterproof and breathable membrane and the buffer component.

6. The shell assembly according to claim 5, wherein: The waterproof breathable module includes a second adhesive layer, which is arranged on a side of the waterproof breathable membrane away from the buffer component. The waterproof breathable module is adhered to the housing through the first adhesive layer.

7. The shell assembly according to claim 1, wherein: The main body is provided with a through hole corresponding to the air hole.

8. The shell assembly according to claim 7, wherein: At least one of the first elastic arm and the second elastic arm is bent and protrudes from a side of the main body facing the waterproof and breathable module.

9. The shell assembly according to claim 8, wherein: The first elastic arm and the second elastic arm are connected to the main body in an axisymmetric manner, and a side of the first boss facing the bottom of the installation groove and a side of the second boss facing the bottom of the installation groove are flush with each other.

10. The shell assembly according to claim 8, wherein The distance between the first boss and the second boss is d1, the distance between the end of the first elastic arm and the end of the second elastic arm is d2, d1 is smaller than d2, and d2 is smaller than the width of the mounting groove.

11. The shell assembly according to claim 7, wherein The width of the mounting groove is D1, the distance between the end of the first extension arm and the end of the second extension arm is D2, and the difference between D1 and D2 is less than or equal to 1 mm.

12. The shell assembly according to claim 7, wherein The first extension arm and the second extension arm are both bent and protruded from a side of the main body facing the waterproof breathable module.

13. The shell assembly according to claim 7, wherein: The first limiting arm and the second limiting arm are both bent and protruded from a side of the main body away from the waterproof and breathable module.

14. The shell assembly according to claim 7, wherein The first limiting arm and the first extending arm are both spaced apart from the first elastic arm, and the second limiting arm and the second extending arm are both spaced apart from the second elastic arm.

15. An electronic device, characterized in that: It comprises a display screen module and the shell assembly according to any one of claims 1 to 14, wherein the inner surface of the shell forms a mounting cavity, and the display screen module covers one end of the mounting cavity.

16. A wearable device, characterized in that: The device comprises a strap and the electronic device according to claim 15 , wherein the strap is connected to the housing and is configured to enable the electronic device to be worn on an arm of a user.

Images