Plugging assembly, shell assembly and electronic equipment

Abstract

The invention relates to the technical field of electronic equipment waterproofing, and discloses a plugging assembly, a shell assembly and electronic equipment. A plugging waterproof device of the plugging assembly comprises a pressure difference cylinder and a first sealing gasket, and the pressure difference cylinder is used for covering an orifice of the second through hole of the shell. Under the action of external pressure, the differential pressure cylinder moves in the first direction to drive the first sealing gasket to move towards the first through hole so as to block the first through hole. According to the design scheme of the plugging assembly, under the condition that the external pressure is large, the differential pressure cylinder can move in the first direction under the action of the external pressure and drive the first sealing gasket to move in the direction facing the first through hole, so that the first through hole is plugged, waterproof sealing of the first through hole is achieved through the first sealing gasket, and the sealing effect of the first through hole is improved. Therefore, the high-grade waterproof requirement is met. Therefore, the plugging assembly provided by the invention can meet the waterproof requirement in a high-waterproof-grade scene.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic device waterproofing, and in particular to a plugging assembly, a shell assembly and an electronic device. BACKGROUND

[0002] With the rapid development of electronic device technology, the forms of intelligent terminal devices are more and more various, and the application scenarios are more and more wide, which also makes users have higher and higher requirements for the performance of electronic devices.

[0003] For example, in some scenarios, users require electronic devices to have waterproof performance. However, the waterproof level of some electronic devices with waterproof function at present is low, which is only suitable for daily life or shallow water area waterproof requirement, and cannot support higher waterproof requirement. Therefore, it is urgent to optimize the waterproof design of electronic devices. SUMMARY

[0004] The present application provides a plugging assembly, a shell assembly and an electronic device to improve the waterproof performance of the electronic device.

[0005] In a first aspect, the present application provides a plugging assembly, which can be arranged in a shell. The plugging assembly includes a plugging waterproof device. The plugging waterproof device includes a differential pressure cylinder and a first sealing gasket. The number of the differential pressure cylinder is one, and the differential pressure cylinder is used to cover the hole of the second through hole of the shell. Under the action of external pressure, the differential pressure cylinder can move in a first direction, driving the first sealing gasket to move in the direction of the first through hole, so as to plug the first through hole. By using the design scheme of the plugging assembly provided by the present application, under the condition of large external pressure, the differential pressure cylinder can move under the action of external pressure, and drive the first sealing gasket to move in the direction of the first through hole, so as to plug the first through hole, so as to realize waterproof sealing of the first through hole by the first sealing gasket, to meet the higher waterproof requirement. Therefore, the plugging assembly provided by the present application can meet the waterproof requirement in the high waterproof level scene. It should be noted that the differential pressure cylinder is used to cover the hole of the second through hole of the shell, which can be understood as that when the plugging assembly is arranged in the shell, the differential pressure cylinder covers the hole of the second through hole of the shell.

[0006] In a possible implementation manner of the present application, under the action of external pressure, the differential pressure cylinder can move in a second direction, driving the first sealing gasket to move in a direction away from the first through hole, so as to release the first through hole, wherein the first direction and the second direction are opposite. In this way, the air permeability requirement of the shell with the plugging assembly can be met, so as to balance the internal and external pressure of the shell and improve the structural reliability of the shell.

[0007] In some possible implementation manners of the present application, the first direction is parallel to the axial direction of the pressure differential cylinder, and the second direction is parallel to the axial direction of the pressure differential cylinder. That is, under the action of the external pressure, the pressure differential cylinder can move away from or towards the outside along the axial direction thereof, so as to drive the first sealing gasket to move in the direction towards or away from the first through hole, thereby achieving the plugging or releasing of the first through hole. This implementation manner is relatively simple, and is conducive to reducing the design difficulty of the plugging assembly.

[0008] In a possible implementation manner of the present application, the plugging and waterproof device further comprises a first extension arm, the first extension arm is connected with the pressure differential cylinder, and the first sealing gasket is arranged on the first extension arm, so that the first sealing gasket is connected with the pressure differential cylinder through the first extension arm. In this way, the structure of the plugging and waterproof device can be simplified, so as to reduce the design difficulty of the plugging and waterproof device.

[0009] The connection position of the first extension arm and the pressure differential cylinder is not limited. For example, in a possible implementation manner, the first extension arm is connected with the end of the pressure differential cylinder away from the second through hole. In this way, the stroke of the first sealing gasket moving in the direction towards or away from the first through hole can be ensured, and meanwhile, the axial dimension of the plugging and waterproof device can be reduced, thereby facilitating the miniaturization design of the plugging and waterproof device.

[0010] In a possible implementation manner of the present application, the plugging and waterproof device can further comprise a balance pad, and the first sealing gasket and the balance pad are located on two sides of the pressure differential cylinder in the radial direction of the pressure differential cylinder. When the first sealing gasket plugs the first through hole, the balance pad is used to abut against the shell. In this way, when the first sealing gasket plugs the first through hole, the reaction force acting on the first sealing gasket and the reaction force acting on the balance pad can generate moments on the pressure differential cylinder in opposite directions with similar magnitudes, so that the pressure differential cylinder can be prevented from tilting, the risk of the pressure differential cylinder and the shell being stuck can be reduced, the stability of the movement of the pressure differential cylinder relative to the shell can be improved, and the reliability of waterproofing by using the plugging and waterproof device can be improved. The balance pad is used to abut against the shell, which can be understood as that the plugging assembly is arranged on the shell, and when the first sealing gasket plugs the first through hole, the balance pad abuts against the shell.

[0011] It is worth mentioning that in the present application, the first sealing gasket and the balance pad can both be elastic pads, and when the first sealing gasket plugs the first through hole and the balance pad abuts against the shell, the first sealing gasket and the balance pad are used to provide elastic force towards the outside. In this way, the first sealing gasket and the balance pad can be elastically abutted against the shell, so as to ensure the force balance of the pressure differential cylinder by using the moments generated on the pressure differential cylinder by the reaction force provided by the first sealing gasket and the balance pad. The first sealing gasket and the balance pad are used to provide elastic force towards the outside, which can be understood as that the plugging assembly is arranged on the shell, and when the first sealing gasket plugs the first through hole and the balance pad abuts against the shell, the first sealing gasket and the balance pad provide elastic force towards the outside.

[0012] It can be understood that the elastic force towards the outside can be understood as an elastic force in the second direction.

[0013] In a possible implementation of the present application, when the first sealing gasket blocks the first through hole and the sealing gasket abuts against the shell, the elastic force provided by the first sealing gasket generates a moment M1 on the pressure difference cylinder, and the elastic force provided by the balancing gasket generates a moment M2 on the pressure difference cylinder, and at least one of the following conditions is satisfied: |M1-M2| / M2≤30% or |M1-M2| / M1≤30%. Thus, the inclination of the pressure difference cylinder can be effectively avoided, the risk of the pressure difference cylinder and the shell being stuck can be reduced, the stability of the movement of the pressure difference cylinder relative to the shell can be improved, and the reliability of waterproofing by the waterproof plugging device can be improved.

[0014] In a possible implementation of the present application, the waterproof plugging device can further include a second extension arm, the second extension arm is connected with the pressure difference cylinder, and the balancing gasket is arranged on the second extension arm, so that the balancing gasket is connected with the pressure difference cylinder through the second extension arm. By adopting such a structure design, the structure of the waterproof plugging device can be simplified, and the design difficulty of the waterproof plugging device can be reduced.

[0015] The connection position of the second extension arm and the pressure difference cylinder is not limited. For example, in a possible implementation, the second extension arm is connected with the end of the pressure difference cylinder away from the second through hole. In this way, the stroke of the movement of the balancing gasket in the direction towards or away from the shell can be ensured, and the axial size of the waterproof plugging device can be reduced, so that the miniaturization design of the waterproof plugging device can be achieved.

[0016] In a possible implementation of the present application, the first extension arm, the pressure difference cylinder and the second extension arm are integrally formed. In this way, the structure of the waterproof plugging device can be simplified, and the miniaturization design of the waterproof plugging device can be achieved.

[0017] In a possible implementation of the present application, the pressure difference cylinder is arranged in a mounting groove of the shell, and the hole of the second through hole is located at the groove bottom of the mounting groove. In this way, the assembly of the pressure difference cylinder on the shell can be achieved, and the hole of the second through hole can be covered, so that the structure of the shell assembly to which the plugging assembly is applied can be simplified. The pressure difference cylinder arranged in the mounting groove of the shell can be understood as that when the plugging assembly is arranged on the shell, the pressure difference cylinder is arranged in the mounting groove of the shell.

[0018] In addition, the sealing waterproof device further comprises a sealing ring, the sealing ring is sleeved on the differential pressure cylinder, and the sealing ring is used for abutting against the circumferential groove wall of the mounting groove. Since the second through hole is located at the groove bottom of the mounting groove, the sealing waterproof device can achieve sealing of the second through hole by abutting the sealing ring against the circumferential groove wall of the mounting groove and the differential pressure cylinder, thereby achieving waterproof sealing between the differential pressure cylinder and the shell, so as to improve the waterproof performance. The sealing ring is used for abutting against the circumferential groove wall of the mounting groove, which can be understood as that when the sealing assembly is arranged in the shell, the sealing ring abuts against the circumferential groove wall of the mounting groove.

[0019] In a possible implementation of the present application, the sealing waterproof device further comprises an elastic member, the elastic member abuts against the differential pressure cylinder along the axial direction of the differential pressure cylinder. With this scheme, the elastic member can be compressed during movement of the differential pressure cylinder away from the outside, so that the elastic member accumulates elastic force. When the external pressure decreases to a certain value, the elastic force released by the elastic member can be used to drive the differential pressure cylinder to move towards the outside. Thus, the movement of the differential pressure cylinder along the axial direction can be achieved by using the external pressure and the elastic force of the elastic member, so as to switch the waterproof level. The elastic force released by the elastic member can be used to drive the differential pressure cylinder to move towards the outside, which can be understood as that when the sealing assembly is arranged in the shell, the elastic force released by the elastic member drives the differential pressure cylinder to move towards the outside.

[0020] In a possible implementation of the present application, at least part of the elastic member is located in the differential pressure cylinder. The elastic member can be a spring, and the spring is sleeved on the first protrusion at the groove bottom of the mounting groove. In this way, the first protrusion can guide the movement of the spring along the axial direction of the spring during compression or release of the elastic force of the spring, thereby reducing the risk of bending of the spring during movement, improving the movement stability of the spring, and improving the movement stability of the differential pressure cylinder.

[0021] In a possible implementation of the present application, the sealing waterproof device further comprises a second sealing gasket, the second sealing gasket and the first sealing gasket are located on two sides of the differential pressure cylinder along the radial direction of the differential pressure cylinder. When the differential pressure cylinder moves in the first direction, the second sealing gasket can be driven to move towards the third through hole of the shell, so as to seal the third through hole. With this design scheme, the movement of one differential pressure cylinder along the axial direction can be used to drive multiple sealing gaskets to seal corresponding through holes respectively, so as to meet the waterproof requirements of the through holes while reducing the size of the sealing waterproof device.

[0022] In addition, when the differential pressure cylinder moves in the second direction, the second sealing gasket can be driven to move away from the third through hole, so as to release the third through hole. The first direction and the second direction are opposite. This can meet the air permeability requirement of the shell, balance the internal and external pressures of the shell, and improve the structural reliability of the shell.

[0023] In a possible implementation of the present application, the waterproof plugging assembly further comprises a waterproof and breathable membrane assembly, and the waterproof and breathable membrane assembly is configured to cover the hole of the first through hole of the shell. In this way, when the first sealing gasket seals the first through hole, the waterproof and breathable membrane assembly can meet the lower waterproof requirement at the first through hole and can meet the air permeability requirement of the shell to balance the pressure inside and outside the shell and improve the structural reliability of the shell. The waterproof and breathable membrane assembly is configured to cover the hole of the first through hole of the shell, and it can be understood that when the plugging assembly is arranged on the shell, the waterproof and breathable membrane assembly covers the hole of the first through hole of the shell.

[0024] In a possible implementation of the present application, the waterproof and breathable membrane assembly comprises a first waterproof and breathable membrane and a second waterproof and breathable membrane, the first waterproof and breathable membrane and the second waterproof and breathable membrane are arranged in layers, and the first waterproof and breathable membrane is located on the side of the second waterproof and breathable membrane facing the outside. It can be understood that by arranging the waterproof and breathable membrane assembly to comprise multiple waterproof and breathable membranes, the waterproof effect of the waterproof and breathable membrane assembly can be effectively improved, thereby improving the waterproof performance of the plugging assembly.

[0025] When the waterproof and breathable membrane assembly comprises the first waterproof and breathable membrane and the second waterproof and breathable membrane, the oil-repellent level of the first waterproof and breathable membrane is higher than that of the second waterproof and breathable membrane. Since the first waterproof and breathable membrane is arranged close to the outside, the higher oil-repellent level can effectively reduce the corrosion of the waterproof and breathable membrane assembly by oil in the outside, thereby facilitating the improvement of the structural reliability of the waterproof and breathable membrane assembly.

[0026] In addition to the above structure, the plugging assembly can further comprise other structures. For example, in a possible implementation, the plugging assembly further comprises a support net, the support net is located on the side of the waterproof and breathable membrane assembly facing away from the outside, the hardness of the support net is greater than the hardness of the first waterproof and breathable membrane and greater than the hardness of the second waterproof and breathable membrane. In this way, the support net can effectively support the waterproof and breathable membranes in the waterproof and breathable membrane assembly to reduce the risk of damage to the waterproof and breathable membranes, thereby improving the structural reliability of the waterproof and breathable membrane assembly.

[0027] In a possible implementation of the present application, the support net comprises mesh holes, and the aperture d1 of the mesh holes satisfies: 0 < d1 ≤ 0.25 mm. In this way, the structural reliability of the support net can be ensured while reducing the influence of the support net on the air permeability of the electronic device.

[0028] In the present application, the relative positions of the waterproof and breathable membrane assembly and each hole of the first through hole are not limited, for example, in a possible implementation, the waterproof and breathable membrane assembly covers the hole of the first through hole facing away from the outside. In this way, when the first sealing gasket seals the first through hole, the waterproof and breathable membrane assembly can be effectively prevented from being squeezed, thereby facilitating the improvement of the structural reliability of the waterproof and breathable membrane assembly.

[0029] In a possible implementation of the present application, the sealing assembly further comprises a third waterproof and breathable membrane, the third waterproof and breathable membrane is away from the outside relative to the waterproof and breathable membrane assembly, and the third waterproof and breathable membrane covers the hole of the first through hole away from the outside. In this way, the third waterproof and breathable membrane can be used to prevent water from seeping through the waterproof and breathable membrane assembly from entering the shell assembly in which the sealing assembly is applied, thereby facilitating the improvement of the waterproof reliability of the shell assembly and the prolongation of the service life of the electronic device in which the shell assembly is applied.

[0030] In a possible implementation of the present application, the sealing assembly further comprises a pressing support configured to be connected with the shell. The pressing support and the waterproof and breathable membrane assembly are in abutment. In this way, the assembly of the waterproof and breathable membrane assembly and the shell can be realized through the connection of the pressing support and the shell, so as to simplify the assembly process of the electronic device. The pressing support is configured to be connected with the shell, which can be understood as that when the sealing assembly is arranged in the shell, the pressing support is connected with the shell.

[0031] In a possible implementation of the present application, the pressing support comprises a fourth through hole in communication with the first through hole. The sealing assembly further comprises a third waterproof and breathable membrane located on a side of the pressing support away from the outside, and the third waterproof and breathable membrane covers the hole of the fourth through hole. In this way, the compactness of the sealing assembly can be improved, thereby facilitating the miniaturization design of the sealing assembly.

[0032] In a possible implementation of the present application, the sealing assembly further comprises a first fastener configured to pass through the second through hole and be connected with the pressing support to fix the pressing support to the shell. In this way, the space of the shell occupied by the first fastener for realizing the connection of the pressing support and the shell can be reduced, thereby reducing the space of the shell occupied by the sealing assembly, facilitating the miniaturization design of the shell assembly in which the sealing assembly is applied, or reserving space for the arrangement of other structures on the shell, thereby improving the structural diversity of the shell assembly. The first fastener is configured to pass through the second through hole and be connected with the pressing support, which can be understood as that when the sealing assembly is arranged in the shell, the first fastener passes through the second through hole and is connected with the pressing support.

[0033] In a possible implementation of the present application, the sealing assembly further comprises a foam located between the supporting net and the pressing support and in abutment with the supporting net and the pressing support. In this way, the abutment reliability of the supporting net and the pressing support and the waterproof and breathable membrane assembly can be improved, thereby facilitating the improvement of the adhesion reliability of the waterproof and breathable membrane assembly and the shell, and improving the waterproof effect of the waterproof and breathable membrane assembly.

[0034] In a possible implementation of the present application, the plugging assembly further comprises a support sheet, the support sheet comprises a fifth through hole, the support sheet is located at a side of the first through hole facing the outside, and the fifth through hole is in communication with the first through hole. The support sheet is closer to the outside relative to the waterproof and breathable membrane assembly, and the hardness of the support sheet is greater than the hardness of the shell. When the pressure difference cylinder moves in the first direction, the first sealing gasket is driven to move in a direction towards the fifth through hole, so as to plug the fifth through hole. In this way, the plugging of the first through hole can be indirectly realized by the plugging of the fifth through hole by the first sealing gasket, so that the impact force exerted by the first sealing gasket on the shell can be reduced, and the structural reliability of the shell can be improved.

[0035] In addition, when the pressure difference cylinder moves in the second direction, the first sealing gasket is driven to move in a direction away from the fifth through hole, so as to release the fifth through hole, and the first direction and the second direction are opposite. In this way, in the case that the pressure of the outside is small, the lower level of waterproof requirement at the first through hole can be met by using the waterproof and breathable membrane assembly, and the air permeability requirement of the shell can be met, so as to balance the pressure inside and outside the shell, and improve the structural reliability of the shell.

[0036] The present application does not limit the specific structure of the support sheet. For example, in a possible implementation, the support sheet comprises a second protrusion, the second protrusion is located at a side of the support sheet facing the outside, and the second protrusion is arranged around the fifth through hole. In this way, the plugging of the fifth through hole can be realized when the first sealing gasket abuts against the second protrusion and plugs the area surrounded by the second protrusion, which is beneficial to improve the plugging reliability of the first sealing gasket on the fifth through hole, and thus is beneficial to improve the waterproof performance of the plugging assembly.

[0037] In a second aspect, the present application further provides a shell assembly, the shell assembly comprising a shell and the plugging assembly of the first aspect, the shell comprising the first through hole and a second through hole, and the first through hole and the second through hole are arranged at intervals. The shell assembly provided by the present application can realize waterproof by plugging the first through hole by the first sealing gasket to meet the higher level of waterproof in the case that the pressure of the outside is large. And when the outside with large pressure enters the outside with small pressure, the first sealing gasket releases the first through hole, so as to realize the lower level of waterproof at the first through hole by using the waterproof and breathable membrane assembly. Therefore, the shell assembly provided by the present application can realize the dynamic adjustment of the waterproof level according to the pressure of the outside, so as to meet the waterproof requirement in various scenes. And in the case that the pressure of the outside is small, the balance of the pressure inside and outside the shell assembly can be realized by using the first through hole, so as to be beneficial to improve the structural reliability of the shell assembly.

[0038] In a possible implementation of the present application, the shell comprises a mounting groove, a bottom of the mounting groove comprises a first protrusion, and a second through hole penetrates the first protrusion. The elastic member is a spring, and the spring is sleeved on the first protrusion. In this way, the first protrusion can guide the axial movement of the spring during the compression or release of the spring, thereby reducing the risk of bending of the spring during movement, improving the stability of the spring, and improving the stability of the pressure difference cylinder.

[0039] In a possible implementation of the present application, the shell further comprises a third through hole, and the second through hole is located between the first through hole and the third through hole. The waterproof plugging device further comprises a second sealing gasket, and the second sealing gasket and the first sealing gasket are located on two sides of the pressure difference cylinder in the radial direction of the pressure difference cylinder. Under the action of external pressure, the pressure difference cylinder moves in the axial direction, driving the second sealing gasket to move in the direction of facing or facing away from the third through hole, so as to plug or release the third through hole. With this design, the axial movement of one pressure difference cylinder can drive multiple sealing gaskets to plug corresponding through holes respectively, so that the waterproof plugging device can meet the waterproof requirements of each through hole while being small in size, thereby facilitating the miniaturization design of the shell assembly or reserving space for the arrangement of other structures on the shell, and improving the structural diversity of the shell assembly.

[0040] In a possible implementation of the present application, the shell assembly further comprises an appearance decoration cover located on the side of the pressure difference cylinder facing the outside. The appearance decoration cover is connected with the shell, and the appearance decoration cover comprises a sixth through hole in communication with the first through hole. In this way, the movement of the pressure difference cylinder in the direction facing the outside can be limited, thereby avoiding the pressure difference cylinder from falling off the shell, and improving the structural reliability of the shell assembly. Moreover, since the appearance decoration cover can be located on the outermost side of the shell, it serves as an appearance part of the shell assembly, thereby improving the appearance aesthetics of the shell assembly.

[0041] In a possible implementation of the present application, the appearance decoration cover is detachably connected with the shell, thereby facilitating the maintenance and replacement of the waterproof plugging device.

[0042] The present application does not limit the specific connection mode of the appearance decoration cover and the shell. For example, one end of the appearance decoration cover is connected with the shell through a second fastener, and the other end of the appearance decoration cover is connected with the shell through a clamping connection. In this way, the detachable connection of the appearance decoration cover and the shell is facilitated.

[0043] In addition, in order to realize the clamping connection of the appearance decoration cover and the shell, the appearance decoration cover is provided with a buckle, and the shell is provided with a clamping groove. In this way, the clamping connection of the appearance decoration cover and the shell can be realized through the clamping connection of the buckle and the clamping groove. It should be noted that the positions of the buckle and the clamping groove can be interchanged. That is, the buckle can be arranged on the shell, and the clamping groove can be arranged on the appearance decoration cover.

[0044] In a possible implementation of the present application, the shell assembly further comprises a dust screen, which is located on the side of the appearance decoration cover away from the outside. The dust screen is located at the aperture of the sixth through hole, and the pore size of the mesh of the dust screen is smaller than the pore size of the sixth through hole. In this way, the sixth through hole of the appearance decoration cover can be used to filter impurities with relatively large particles, and the mesh of the dust screen can be used to filter impurities with relatively small particles, thereby achieving the effect of filtering impurities in stages, so as to improve the dustproof effect of the shell assembly.

[0045] In a possible implementation of the present application, the pore size d2 of the sixth through hole may, for example, satisfy: 0 < d2 ≤ 0.25 mm. In this way, the filtering effectiveness of some impurities with relatively large particles can be ensured, so as to improve the dustproof effect of the shell assembly.

[0046] In a third aspect, the present application also provides an electronic device, which comprises the shell assembly of the second aspect. The electronic device provided by the present application can realize dynamic adjustment of the waterproof level according to the external pressure, thereby meeting the waterproof requirements in various scenarios. Moreover, in a scenario where the external pressure is small, the first through hole can be used to balance the pressure inside and outside the shell of the electronic device, thereby helping to reduce the risk of performance degradation or failure of the electronic components in the electronic device due to pressure, so as to improve the structural reliability of the electronic device.

[0047] In a possible implementation of the present application, the electronic device further comprises an audio device, which is located on the side of the first through hole away from the outside. That is, in a scenario where the external pressure is small, the first through hole of the electronic device provided by the present application can communicate the cavity of the electronic device with the outside, and the audio device can realize its audio function through the first through hole.

[0048] In a possible implementation of the present application, the shell comprises a frame, the frame comprises the first through hole and the second through hole, and the plugging assembly is arranged on the frame. In this way, the waterproof performance of the frame of the electronic device can be effectively improved, thereby improving the waterproof performance of the entire electronic device.

[0049] In a possible implementation of the present application, the electronic device further comprises a display screen, and the shell further comprises a back cover. The display screen and the back cover are arranged opposite to each other, and the frame connects the display screen and the back cover to enclose the cavity of the electronic device. In this implementation, the cavity can be used to accommodate the circuit board and electronic components of the electronic device. Since the waterproof performance of the electronic device provided by the present application is good, it is helpful to improve the reliability of the circuit board and electronic components accommodated in the cavity of the electronic device, thereby helping to prolong the service life of the entire electronic device.

[0050] In a possible implementation of the present application, when the difference between the pressure of the outside and the pressure of the cavity is greater than a first set value, the pressure difference cylinder moves axially towards the cavity, driving the first sealing gasket to move in a direction towards the first through hole, so as to block the first through hole. The first set value is the resultant force of the pressure difference cylinder towards the outside when the pressure difference cylinder moves towards the cavity, which can be set according to the waterproof requirement of the electronic device, so that the electronic device can meet the waterproof requirement in a set scene.

[0051] In another possible implementation of the present application, when the difference between the pressure of the outside and the pressure of the cavity is less than a second set value, the pressure difference cylinder moves axially towards the outside, driving the first sealing gasket to move in a direction away from the first through hole, so as to release the first through hole. The second set value is the resultant force of the pressure difference cylinder towards the outside when the pressure difference cylinder moves towards the outside, which can be set according to the waterproof requirement of the electronic device, so that the electronic device can meet the waterproof requirement in a set scene.

[0052] In a possible implementation of the present application, the electronic device is a diving watch or a diving bracelet. Since the electronic device provided in the present application can realize reliable sealing of the through hole by using the sealing gasket in a scene with high pressure of the outside, it can be applied to a deep water diving scene, such as a diving scene of 200 ATM and above, so as to meet the deep water diving requirement of the user and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 A structural schematic diagram of an electronic device provided by an embodiment of the present application;

[0054] Figure 2 A sectional view of a structure of an electronic device provided by an embodiment of the present application;

[0055] Figure 3 A schematic diagram of a design principle of an electronic device provided by an embodiment of the present application;

[0056] Figure 4 A schematic diagram of a design principle of an electronic device provided by an embodiment of the present application;

[0057] Figure 5 A schematic diagram of a design principle of an electronic device provided by an embodiment of the present application;

[0058] Figure 6 An exploded view of a structure of an electronic device provided by an embodiment of the present application;

[0059] Figure 7 A sectional view of a structure of an electronic device provided by an embodiment of the present application;

[0060] Figure 8An assembly relationship diagram of the pressure difference barrel, the first sealing gasket and the balance gasket provided by the embodiment of the present application;

[0061] Figure 9 An exploded view of the electronic device shown in the embodiment of the present application; Figure 6

[0062] Figure 10 A structure diagram of the waterproof and breathable film assembly provided by the embodiment of the present application;

[0063] Figure 11 A structure diagram of the pressing support provided by the embodiment of the present application;

[0064] Figure 12 A structure diagram of the support sheet provided by the embodiment of the present application;

[0065] Figure 13a A setting mode diagram of the first sealing gasket and the support sheet provided by the embodiment of the present application;

[0066] Figure 13b Another setting mode diagram of the first sealing gasket and the support sheet provided by the embodiment of the present application;

[0067] Figure 13c Another setting mode diagram of the first sealing gasket and the support sheet provided by the embodiment of the present application;

[0068] Figure 14 A structure diagram of the appearance decoration cover provided by the embodiment of the present application;

[0069] Figure 15 Another structure diagram of the electronic device provided by the embodiment of the present application.

[0070] Reference signs:

[0071] 1000-electronic device; 100-housing; 100a-bezel; 100b-back cover; 101-first through hole; 102-second through hole; 103-third through hole;

[0072] 104-mounting groove; 1041-first protrusion; 105-clamping groove; 200-display screen; 1-plugging assembly; 10-waterproof and breathable film assembly;

[0073] 11-first waterproof and breathable film; 12-second waterproof and breathable film; 20-plugging waterproof device; 21-pressure difference barrel; 212-first extension arm;

[0074] 2121-recess; 213-second extension arm; 214-third extension arm; 22-elastic member; 23-sealing gasket; 231-first sealing gasket;

[0075] ​232 - second sealing gasket; 24 - sealing ring; 25 - balance pad; 30 - support net; 34 - foam; 40 - pressing support; 41 - fourth through hole;

[0076] 42 - accommodating groove; 50 - third waterproof and breathable film; 60 - first fastener; 61 - second fastener; 70 - support sheet; 71 - fifth through hole;

[0077] 72 - second protrusion; 80 - appearance decoration cover; 81 - sixth through hole; 82 - buckle; 90 - dustproof net. DETAILED DESCRIPTION

[0078] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will combine the drawings to make further detailed description of the embodiments of the present application. However, the example embodiments can be implemented in various forms, and should not be understood as being limited to the embodiments set forth herein. The same reference signs in the drawings represent the same or similar structures, and thus repeated description thereof will be omitted. The words expressing position and direction described in the embodiments of the present application are described with the drawings as an example, but changes can also be made as needed, and the changes made are included in the protection scope of the present application. The drawings of the embodiments of the present application are only used to show the relative position relationship and do not represent the true proportion.

[0079] It should be noted that specific details are set forth in the following description in order to provide an understanding of the present application. However, the embodiments of the present application can be implemented in various other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the embodiments of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0080] In the present application, the electronic device can be a terminal device, and the terminal device can exemplarily be a smart ring, a smart watch, a smart bracelet, or a smart glasses phone, a notebook computer, a tablet computer, or a personal digital assistant (PDA) and the like, and the present application does not limit the specific product form of the electronic device and the functions that can be achieved. It should be noted that the terminal device that can be worn on the human body, such as a smart ring, a smart watch, a smart bracelet, smart glasses, a wrist computer and the like, can also be referred to as a wearable device.

[0081] The electronic device can generally include a cavity and electronic devices such as a circuit board, a battery, a microphone, a loudspeaker, a depth meter or a camera module accommodated in the cavity. Generally, the electronic device can also include a through hole for communicating the cavity of the electronic device with the outside, on the one hand to ensure the audio effect of the audio devices such as the microphone and the loudspeaker, and on the other hand to balance the pressure inside and outside the cavity of the electronic device, so as to reduce the influence of the pressure on the performance and reliability of the electronic devices.

[0082] However, since the through hole communicates the cavity of the electronic device with the outside world, there is a risk that the liquid in the outside world enters the cavity along the through hole, thereby causing damage to the electronic devices in the cavity of the electronic device. In order to improve the waterproof performance of the electronic device, at present, a waterproof and breathable film is usually attached at any one of the orifices of the through hole. Since the water pressure increases as the water depth increases, and the waterproof and breathable film is a flexible film, the pressure it can withstand is usually small, so when the water depth reaches a certain level, the waterproof and breathable film has a risk of damage, therefore the waterproof level of the commonly used waterproof and breathable film is usually low, for example, it can only meet the waterproof requirements of daily life or shallow water depth. Furthermore, if it is desired to achieve waterproofing of a deeper water depth by using a waterproof and breathable film, due to the limitations of the processing technology, the waterproof capability of the currently mass-produced waterproof and breathable film can only support 12.5 ATM, that is, waterproofing of a depth of 125 meters, which cannot meet the requirements of higher waterproof levels, and the higher the waterproof capability of the waterproof and breathable film, the more expensive it is, thereby resulting in a higher cost of the electronic device. Another waterproof solution is to attach a waterproof sound transmission film at any one of the orifices of the through hole, since its air permeability is poor, the waterproof effect is good, and it can meet the requirements of higher waterproof levels. The waterproof sound transmission film can transmit sound by vibration, although it can support the audio function of the microphone, but due to the influence of factors such as temperature, when the internal air pressure of the cavity of the electronic device changes, it may cause the loudspeaker to produce noise or even be silent, and there is also a risk that the device will be affected by the pressure and fail or be damaged. That is, the current electronic device is difficult to balance high waterproof level, air pressure balance and audio effect.

[0083] Therefore, the electronic device provided in the present application can dynamically adjust the waterproof sealing performance to meet the waterproof requirements of users in different scenarios, and can meet the communication requirements between the cavity of the electronic device and the outside world in scenarios with low waterproof requirements, so as to balance the air pressure inside and outside the cavity of the electronic device, thereby improving the reliability and audio effect of the electronic device, which is beneficial to improve the user experience and thus improve the market competitiveness of the electronic device. In order to facilitate understanding of the scheme provided in the present application, the following will be described in detail in conjunction with the drawings.

[0084] Referring to Figure 1 , Figure 1 A structural schematic diagram of an electronic device provided in an embodiment of the present application. In the embodiment of the present application, the electronic device 1000 is taken as an example of a smart watch, and the design principle thereof is introduced. In the embodiment shown in Figure 1 The electronic device 1000 includes a housing 100. In some embodiments, the housing 100 can include a bezel 100a, and the keys or knobs and other structures of the electronic device 1000 can be arranged on the bezel 100a.

[0085] Referring to Figure 1In some embodiments of the present application, the shell 100 can further include a back cover 100b. In addition, the electronic device 1000 can further include a display screen 200 for realizing the screen display function of the electronic device 1000. As shown in Figure 1 , the display screen 200 is arranged opposite to the back cover 100b, and the frame 100a connects the display screen 200 and the back cover 100b to form a cavity of the electronic device 1000.

[0086] It is worth mentioning that, in some embodiments of the present application, the frame 100a and the back cover 100b can also be an integrated structure, which can still form the cavity of the electronic device 1000 together with the display screen 200.

[0087] In some embodiments of the present application, the frame 100a and the back cover 100b can constitute the shell 100 of the electronic device 1000. However, it should be noted that the constituting manner of the shell 100 described in the embodiments of the present application is not limited thereto. For example, in some embodiments, the shell 100 can further include a front cover (not shown in the figure). Figure 1 That is, the front cover, the frame 100a and the back cover 100b can constitute the shell 100 of the electronic device 1000. The front cover and the back cover 100b can be arranged opposite to each other, and the frame 100a is connected to the front cover and the back cover 100b.

[0088] It should be noted that the "shell" can also be referred to as "housing". When the electronic device 1000 is a smart watch or a smart bracelet, it can also be referred to as "watch case".

[0089] Figure 2 A sectional view of a structure of an electronic device provided in an embodiment of the present application can be used to show, for example, a sectional view of a structure of an electronic device shown in Figure 1 . As shown in Figure 2 , the shell 100 includes a first through hole 101. The first through hole 101 can be used to communicate the cavity of the electronic device 1000 with the outside world, so as to realize the communication between the cavity and the outside world in a scenario with low waterproof requirement, thereby balancing the air pressure inside and outside the cavity of the electronic device 1000 to improve the reliability of the electronic components of the electronic device 1000.

[0090] It is worth mentioning that, in the present application, the outside world refers to the external environment in which the whole electronic device 1000 is located, which can be an underwater environment or an above-water environment. For ease of understanding, the outside world is taken as an underwater environment as an example in the following embodiments of the present application.

[0091] Continuing to refer to Figure 2 , the electronic device 1000 further includes a plugging assembly 1 arranged in the shell 100 to form a shell assembly for realizing the waterproof design of the shell 100. As shown inFigure 2 As shown, the plugging assembly 1 includes a waterproof and breathable film assembly 10, which can be used to cover the hole of the first through hole 101. In Figure 2 In the embodiment shown, the waterproof and breathable film assembly 10 covers the hole of the first through hole 101 facing the outside world, and in other embodiments, the waterproof and breathable film assembly 10 can also cover the hole of the first through hole 101 facing the cavity. No matter which hole of the first through hole 101 is covered by the waterproof and breathable film assembly 10, it can play a role in improving the waterproofness at the first through hole 101.

[0092] From the above introduction, it can be seen that the scene of using only waterproof and breathable film to meet the waterproof requirement is limited, so, as Figure 2 As shown, in the embodiment of the present application, the plugging assembly 1 further includes a plugging waterproof device 20 to meet the waterproof requirement in multiple scenes through the cooperation of the plugging waterproof device 20 and the waterproof and breathable film assembly 10. In Figure 2 As shown in the embodiment, the plugging waterproof device 20 includes two differential pressure cylinders 21 connected to each other, and the housing 100 includes two second through holes 102, so that the two differential pressure cylinders 21 correspondingly cover the two second through holes 102. It is worth mentioning that in some embodiments of the present application, the first through hole 101 and the second through hole 102 can be arranged on the frame 100a of the housing 100.

[0093] In addition, referring to Figure 2 , the plugging waterproof device 20 further includes two elastic members 22, which are arranged one by one with the two differential pressure cylinders 21, and each elastic member 22 abuts against the corresponding differential pressure cylinder 21. In addition, the plugging waterproof device 20 further includes a sealing gasket 23, which is located between the two differential pressure cylinders 21 and connected to the side of the differential pressure cylinder 21 facing the first through hole 101.

[0094] As shown in Figure 2 , since the first through hole 101 is located between the two second through holes 102, under the action of the external pressure, when the two differential pressure cylinders 21 move away from the outside world along their respective axes, or in other words, when they move towards the cavity along their respective axes, the sealing gasket 23 can be driven to move in the direction of the first through hole 101, and when the sealing gasket 23 abuts against the part of the housing 100 located at the hole of the first through hole 101, the plugging of the first through hole 101 can be realized, thereby realizing the waterproof sealing of the first through hole 101.

[0095] It can be understood that, in the process of moving the two pressure difference barrels 21 along the respective axes towards the cavity, the two pressure difference barrels 21 extrude the corresponding elastic members 22, so that the elastic members 22 accumulate the elastic force towards the outside. When the external pressure decreases to a certain value, the elastic member 22 can push the pressure difference barrel 21 to move towards the outside to drive the sealing gasket 23 to move away from the first through hole 101, thereby releasing the first through hole 101, and at this time the first through hole 101 can be waterproof through the waterproof and breathable film assembly 10.

[0096] Referring to Figure 3 , Figure 3 A schematic diagram of the design principle of the electronic device provided by the embodiment of the present application. Unlike the embodiment shown in the above Figure 2 , the number of pressure difference barrels 21 of the plugging waterproof device 20 shown in Figure 3 is one, which is beneficial to reduce the space occupied by the plugging waterproof device 20 in the shell 100, and is beneficial to reduce the assembly size precision requirement between the plugging waterproof device 20 and the shell 100, thereby reducing the difficulty of implementation of the scheme, and is beneficial to improve the waterproof sealing effect of the plugging waterproof device 20.

[0097] From the above introduction, since the second through hole 102 is in communication with the cavity of the electronic device 1000. It can be understood that the pressure difference barrel 21 is subjected to the external pressure and the cavity pressure. It can be understood that the pressure on the side of the pressure difference barrel 21 covering the orifice of the second through hole 102 is the cavity pressure of the electronic device 1000, and the pressure on the side of the pressure difference barrel 21 facing the outside is the external pressure. The external pressure can be understood as the pressure exerted by the external space on the pressure difference barrel. For example, in the underwater environment, the external pressure can be understood as the water pressure.

[0098] In addition, referring to Figure 3 , the plugging waterproof device 20 can further include an elastic member 22, the elastic member 22 being in abutment with the pressure difference barrel 21 and the shell 100. When the cavity pressure of the electronic device 1000 is different from the external pressure, the pressure difference between the outside and the cavity causes the pressure difference barrel 21 to have a tendency to move relative to the shell 100.

[0099] In addition, it is considered that if the pressure difference barrel 21 can move relative to the shell 100, the frictional force between the pressure difference barrel 21 and the shell 100 and the elastic force of the extruded elastic member 22 need to be overcome. Therefore, in the scenario where the pressure exerted by the outside on the pressure difference barrel 21 is large enough, such as diving at 1 ATM or above, when the difference between the pressure of the outside and the cavity is greater than a first set value, the pressure difference barrel 21 can move towards the cavity along the axis, wherein the first set value can be the resultant force towards the outside that the pressure difference barrel 21 can move towards the cavity. For example, in Figure 3In the shown embodiment, when the pressure difference F1 between the outside and the cavity satisfies F1>F2+F3, the pressure difference cylinder 21 can move in the axial direction towards the cavity. As shown in the figure, when the pressure difference cylinder 21 moves in the first direction, i.e. towards the cavity, the first sealing pad 231 can be driven to move in the direction towards the first through hole 101, and the waterproof sealing of the first through hole 101 can be realized when the first sealing pad 231 blocks the first through hole 101. Figure 3 As shown, the waterproof device 20 can further include a first sealing pad 231 which can be arranged opposite to the first through hole 101. In this way, when the pressure difference cylinder 21 moves in the first direction, i.e. towards the cavity, under the action of the pressure of the outside, the first sealing pad 231 can be driven to move in the direction towards the first through hole 101, and the waterproof sealing of the first through hole 101 can be realized when the first sealing pad 231 blocks the first through hole 101.

[0100] It can be understood that, by using the waterproof solution provided in the present application, since the waterproof and breathable film assembly 10 is breathable, when the electronic device 1000 is in the water environment, the first through hole 101 communicates the cavity with the outside, i.e. the first through hole 101 is in the breathable state, and the cavity pressure of the electronic device 1000 is the same as the outside pressure, and no pressure difference exists between them. As introduced above, one side of the pressure difference cylinder 21 is the cavity pressure, and the other side is the outside pressure, so when there is no pressure difference between the cavity pressure and the outside pressure, the pressure difference cylinder 21 will not move towards the cavity.

[0101] When the electronic device 1000 enters the underwater environment from the water environment, since the waterproof and breathable film assembly 10 blocks the first through hole 101, the waterproof and breathable film assembly 10 can play a waterproof role, so the first through hole 101 is not water-permeable, and the cavity pressure of the electronic device 1000 is less than the outside pressure, so as to form a pressure difference between the inside and outside of the cavity of the electronic device 1000. As introduced above, when the pressure difference between the outside and the cavity reaches a certain value, the pressure difference cylinder 21 can move towards the cavity, thereby driving the first sealing pad 231 to move towards the first through hole 101 and block the first through hole 101, thereby realizing the underwater waterproof of the electronic device 1000.

[0102] It is worth mentioning that in some embodiments of the present application, by designing the differential pressure cylinder 21 to move away from the outside world in the case of a small water depth, for example, at 1 ATM, 2 ATM, 2.5 ATM, 3 ATM or 5 ATM water depth, to drive the first sealing gasket 231 to block the first through hole 101, waterproof at the first through hole 101, the waterproof and breathable film assembly 10 can select a waterproof and breathable film with lower waterproof grade, which is conducive to reducing the cost of the waterproof and breathable film assembly 10. In addition, since the sealing and waterproof device 20 has good structural reliability, it can withstand a larger water pressure, so in the underwater environment, after the first sealing gasket 231 blocks the first through hole 101, the first sealing gasket 231 can still effectively block the first through hole 101, thereby meeting the waterproof requirements in the case of a large water depth, for example, meeting the waterproof requirements of 200 ATM and above.

[0103] Continuing to refer to Figure 3 In some embodiments of the present application, the sealing and waterproof device 20 can include a first extension arm 212, and the first extension arm 212 is connected with the differential pressure cylinder 21, so that the first extension arm 212 can move synchronously with the differential pressure cylinder 21. In addition, as shown in Figure 3 The first sealing gasket 231 can be arranged on the first extension arm 212, so that the first extension arm 212 can drive the first sealing gasket 231 to move when the first extension arm 212 moves with the differential pressure cylinder 21.

[0104] It can be understood that when the sealing and waterproof device 20 includes the first extension arm 212, the force applied to the differential pressure cylinder 21 can refer to the force applied to the overall structure formed by the connection of the differential pressure cylinder 21 and the first extension arm 212. For example, in the underwater environment, when the first sealing gasket 231 is subjected to a compression force, the force applied to the overall structure can include the water pressure applied to the differential pressure cylinder 21 and the first extension arm 212, the elastic force of the elastic member 22 applied to the differential pressure cylinder 21, the rebound force (elastic force) of the first sealing gasket 231 due to compression applied to the first extension arm 212, etc. Still taking the underwater environment as an example, before the first sealing gasket 231 is compressed, the force applied to the overall structure can include the water pressure applied to the differential pressure cylinder 21 and the first extension arm 212, the elastic force of the elastic member 22 applied to the differential pressure cylinder 21, and the friction between the differential pressure cylinder 21 and the shell, etc.

[0105] It can be understood that in the present application, under the action of the force applied to the overall structure, the differential pressure cylinder 21 moves (in the first direction or the second direction, the second direction is opposite to the first direction), which can be understood as the differential pressure cylinder 21 moving (in the first direction or the second direction) under the action of the external pressure.

[0106] The application does not limit the specific connection mode of the first extension arm 212 and the differential pressure cylinder 21. Exemplarily, the first extension arm 212 can be an integral molding structure with the differential pressure cylinder 21, so as to simplify the structure of the plugging waterproof device 20, thereby facilitating the miniaturization design of the plugging waterproof device 20. In some other embodiments of the application, the first extension arm 212 and the differential pressure cylinder 21 can also be two independent structures, which are connected through welding, bonding, threaded connection or riveting, so as to improve the setting flexibility of the plugging waterproof device 20.

[0107] In the application, the first sealing gasket 231 can be an elastic gasket. During the movement of the first sealing gasket 231 in the direction towards the first through hole 101, when the first sealing gasket 231 contacts the structure of the electronic device 1000 at the aperture of the first through hole 101, the first sealing gasket 231 is compressed by the external force towards the outside, which is beneficial to improve the sealing effect of the first sealing gasket 231 on the first through hole 101, thereby improving the waterproof effect of the whole electronic device 1000.

[0108] The application does not limit the material of the first sealing gasket 231, which can exemplarily be silica gel, rubber or other flexible waterproof materials, so as to reduce the risk of damaging the shell 100 while meeting the sealing requirements of the first through hole 101.

[0109] For example, when moving from a shallow water area to a deep water area, as the water depth increases, the external pressure increases, and the water pressure applied to the differential pressure cylinder 21 is greater than the cavity pressure applied to the differential pressure cylinder 21, the elastic force F2 of the elastic member 22 applied to the differential pressure cylinder 21 and the friction force F3 between the differential pressure cylinder 21 and the shell 100, the differential pressure cylinder 21 moves from the first position to the second position, driving the first sealing gasket 231 to move from the third position to the fourth position, until the first sealing gasket 231 blocks the first through hole 101. It can be understood that the fourth position is closer to the first through hole 101 than the third position, and the second position is closer to the second through hole 102 than the first position.

[0110] From the above introduction, it can be known that in the electronic device 1000 provided by the application, the elastic coefficient of the elastic member 22 and the friction coefficient between the differential pressure cylinder 21 and the shell 100 can be designed according to the waterproof requirements in specific application scenarios, so that the differential pressure cylinder 21 can move under the pressure difference between the outside and the cavity in the corresponding scene, so as to block the first through hole 101, thereby realizing the waterproof of the first through hole 101.

[0111] For example, it can be designed to allow the differential pressure cylinder 21 to move away from the external environment in scenarios with different water depths (such as 100 meters, 80 meters, 50 meters, and 30 meters), thereby driving the first sealing gasket 231 towards the first through hole 101 and sealing it. Understandably, in deeper water environments, the first sealing gasket 231 always seals the first through hole 101 to ensure a waterproof seal. When the first sealing gasket 231 releases the first through hole 101, the first through hole 101 remains open to meet air permeability requirements.

[0112] It is understandable that when the electronic device 1000 moves from a high-pressure external environment to a low-pressure external environment, such as from a deep water area to a shallow water area, the pressure difference F1 between the external environment and the cavity decreases. Furthermore, when the pressure difference F1 is less than a second set value, such as... Figure 4 As shown, the differential pressure cylinder 21 moves in the second direction, that is, towards the outside. The second set value is the resultant force on the differential pressure cylinder 21 towards the outside when it can move towards the outside. For example, when the differential pressure F1, the elastic force F2 applied to the differential pressure cylinder 21 by the elastic element 22, the frictional force F3 between the differential pressure cylinder 21 and the housing 100, and the rebound force F4 provided by the first sealing gasket 231 satisfy the condition: F1 < F2 + F4 - F3, when the differential pressure cylinder 21 moves axially, it can drive the first sealing gasket 231 to move in the direction away from the first through hole 101, thereby releasing the first through hole 101. At this time, the first through hole 101 can be waterproofed by the waterproof and breathable membrane assembly 10.

[0113] For example, when moving from deep water to shallow water, as the water depth decreases, the external pressure decreases. When the sum of the water pressure applied to the differential pressure cylinder 21 and the frictional force F3 between the differential pressure cylinder 21 and the housing 100 is less than the cavity pressure applied to the differential pressure cylinder 21, the elastic force F2 applied to the differential pressure cylinder 21 by the elastic element 22, and the rebound force F4 provided by the first sealing gasket 231, then... Figure 4 As shown, the differential pressure cylinder 21 is triggered to move towards the outside. The differential pressure cylinder 21 moves from the second position to the first position, which drives the first sealing gasket 231 to move from the fourth position to the third position, thereby causing the first sealing gasket 231 to release the first through hole 101.

[0114] As described above, in this application, the first direction is the direction away from the outside, and the second direction is the direction towards the outside; therefore, the first direction and the second direction are opposite. Furthermore, in some embodiments, both the first and second directions are parallel to the axial direction of the differential pressure cylinder 21, so the differential pressure cylinder 21 moves axially under the pressure difference between the outside and the cavity.

[0115] It can be seen that, by using the waterproof design scheme of the electronic device provided in the present application, the movement of the pressure difference cylinder 21 under the action of the pressure difference between the outside and the cavity of the electronic device 1000 can be utilized to block the first through hole 101 by the first sealing gasket 231 in the scenario of high waterproof level, so as to realize the high-level waterproof requirement. And in the scenario of lower waterproof level, the first through hole 101 is released to utilize the waterproof and breathable film assembly 10 to meet the lower-level waterproof requirement. Thus, the waterproof requirement in different scenarios can be met, and at the same time, the air permeability requirement of the first through hole 101 can be met in the scenario of lower waterproof level, so as to realize the air pressure balance between the inside and outside of the cavity of the electronic device 1000. And when the electronic device 1000 includes an audio device such as a loudspeaker, the audio device can be located on the side of the first through hole 101 facing the cavity, so as to ensure the audio effect of the audio device.

[0116] It should be noted that, in some embodiments of the present application, the blocking assembly 1 can also be provided with other components. For example, referring to Figure 5 , Figure 5 A schematic diagram of the design principle of the electronic device provided in the embodiments of the present application is shown, and the blocking waterproof device 20 further includes a balance pad 25. It can be seen that, along the radial direction of the pressure difference cylinder 21, the first sealing gasket 231 and the balance pad 25 can be located on both sides of the pressure difference cylinder 21.

[0117] Continuing to refer to Figure 5 , the blocking waterproof device 20 can further include a second extension arm 213, and the first extension arm 212 and the second extension arm 213 are arranged on both sides of the pressure difference cylinder 21 along the radial direction of the pressure difference cylinder 21. The balance pad 25 can be connected with the second extension arm 213, so that when the pressure difference cylinder 21 moves along the axial direction, the balance pad 25 can be driven to move in the direction towards or away from the shell 100.

[0118] It can be understood that, in the present application, the second extension arm 213 also moves synchronously with the pressure difference cylinder 21, that is, the first extension arm 212 and the second extension arm 213 move synchronously with the pressure difference cylinder 21.

[0119] In addition, in some embodiments of the present application, the force applied to the differential cylinder 21 can refer to the force applied to the whole structure formed by the differential cylinder 21, the first extension arm 212 and the second extension arm 213. For example, in the underwater environment, when the first sealing gasket 231 and the balance gasket 25 are subjected to the extrusion force, the force applied to the whole structure can include the water pressure applied to the differential cylinder 21, the first extension arm 212 and the second extension arm 213, the elastic force of the elastic member 22 applied to the differential cylinder 21, the rebound force (elastic force) of the first sealing gasket 231 applied to the first extension arm 212 due to compression, and the rebound force (elastic force) of the balance gasket 25 applied to the second extension arm 213 due to compression, and the like. Still taking the underwater environment as an example, before the first sealing gasket 231 and the balance gasket 25 are compressed, the force applied to the whole structure can include the water pressure applied to the differential cylinder 21, the first extension arm 212 and the second extension arm 213, the elastic force of the elastic member 22 applied to the differential cylinder 21, and the friction between the differential cylinder 21 and the shell, and the like.

[0120] It can be understood that, in the present application, the movement of the differential cylinder 21 (in the first direction or the second direction) under the action of the force applied to the whole structure can be understood as the movement of the differential cylinder 21 (in the first direction or the second direction) under the action of the external pressure.

[0121] The present application does not limit the specific connection mode of the second extension arm 213 and the differential cylinder 21. For example, the first extension arm 212, the second extension arm 213 and the differential cylinder 21 can be an integral structure, so as to simplify the structure of the plugging and waterproof device 20, thereby facilitating the miniaturization design of the plugging and waterproof device 20. In some other embodiments of the present application, the first extension arm 212, the second extension arm 213 and the differential cylinder 21 can also be independently arranged structures, which can be connected by welding, bonding, threaded connection or riveting, so as to improve the flexibility of the plugging and waterproof device 20.

[0122] In the present application, the materials of the first sealing gasket 231 and the balance gasket 25 can be the same or different. For example, in one possible embodiment, the first sealing gasket 231 and the balance gasket 25 can be elastic gaskets such as silica gel gaskets, which can be formed on the first extension arm 212 and the second extension arm 213 respectively by injection molding, so as to reduce the processing difficulty of the plugging and waterproof device 20 and improve the connection reliability of the first sealing gasket 231 and the balance gasket 25 with the corresponding extension arm. In some other possible embodiments, the first sealing gasket 231 and the balance gasket 25 can also be connected with the corresponding extension arm 213 by bonding or other possible ways, as long as the connection reliability can be ensured.

[0123] It can be understood that, when the differential cylinder 21 moves in the axial direction to the first sealing gasket 231 to block the hole of the first through hole 101, as shown inFigure 5 As shown, the first sealing gasket 231 can provide an elastic force F4 due to compression, and the elastic force F4 can generate a moment M1 on the differential pressure cylinder 21 in the direction shown by ω1. The balance gasket 25 abuts against the shell 100, and the balance gasket 25 can provide an elastic force F5 due to compression, and the elastic force F5 can generate a moment M2 on the differential pressure cylinder 21 in the direction shown by ω2. It can be understood that the directions of the moments M1 and M2 are opposite, and in some embodiments of the present application, the moments M1 and M2 can satisfy at least one of the following conditions: |M1-M2| / M2≤30%, or |M1-M2| / M1≤30%, that is, the moments M1 and M2 differ by no more than 30%, for example, the moments M1 and M2 differ by 5%, 10%, 15%, 20%, or 25%, etc., which can effectively prevent the differential pressure cylinder 21 from tilting, thereby reducing the risk of the differential pressure cylinder 21 being stuck with the mounting groove 104, thereby facilitating to improve the stability of the movement of the differential pressure cylinder 21 relative to the shell 100, thereby improving the reliability of the waterproof of the electronic device 1000 by using the plugging waterproof device 20.

[0124] From the above introduction, it can be known that in the present application, when the plugging waterproof device 20 only includes one differential pressure cylinder 21, the risk of the differential pressure cylinder 21 tilting can be reduced by the setting of the balance gasket 25, thereby facilitating to reduce the space of the shell 100 occupied by the plugging waterproof device 20, thereby facilitating to realize the miniaturization design of the electronic device 1000, or the space can be reserved for the setting of other structures in the electronic device 1000, thereby improving the functional diversity of the electronic device 1000.

[0125] After understanding the waterproof design principle of the electronic device 1000 provided by the present application, the specific structure of the electronic device 1000 will be described in some exemplary manners in combination with the drawings.

[0126] Figure 6 An exploded view of a structure of an electronic device provided by an embodiment of the present application, which can be used to show the structure of the electronic device 1000 shown in Figure 1 As shown in 6, in the electronic device 1000 provided by the present application, the plugging waterproof device 20 can be mounted on the shell 100 from the outside of the shell 100. In addition, in the embodiment shown in Figure 6 The plugging waterproof device 20 can be arranged on the frame 100a.

[0127] For the convenience of understanding the setting manner of the plugging waterproof device 20 on the shell 100, the Figure 7 Figure 7 ​A cross-sectional view of another structure of the electronic device provided in the embodiments of this application, which can be used exemplarily to illustrate Figure 1 The diagram shows a cross-sectional view (AA) of the electronic device. In some embodiments of this application, the housing 100 may include a mounting groove 104, and the opening of the second through hole 102 may be located at the bottom of the mounting groove 104. Additionally, a differential pressure cylinder 21 is mounted in the mounting groove 104, and at least a portion of the elastic element 22 is located within the differential pressure cylinder 21. This improves the structural reliability of the elastic element 22 and allows for a more compact structure of the sealing and waterproofing device 20, thereby reducing its space occupation on the housing 100. This facilitates the miniaturization design of the electronic device 1000, or allows for the provision of space for other functional modules on the housing 100, thus enhancing the functional versatility of the electronic device 1000.

[0128] You can continue to refer to Figure 7 In some embodiments of this application, the sealing and waterproofing device 20 further includes a sealing ring 24, which is sleeved on the differential pressure cylinder 21 and abuts against the circumferential groove wall of the mounting groove 104. This achieves a waterproof seal between the differential pressure cylinder 21 and the housing 100, thereby improving the waterproof performance of the electronic device 1000.

[0129] like Figure 7 As shown in some embodiments of this application, the outer periphery of the differential pressure cylinder 21 may also include an annular groove, and the sealing ring 24 may be installed in the annular groove to improve the connection reliability between the sealing ring 24 and the differential pressure cylinder 21, thereby reducing the risk of the sealing ring 24 disengaging from the differential pressure cylinder 21 during the axial movement of the differential pressure cylinder 21, and improving the reliability of the waterproof seal between the differential pressure cylinder 21 and the housing 100.

[0130] This application does not limit the material of the sealing ring 24, which can be, for example, a rubber ring or other sealing rings with compression sealing properties. Furthermore, the number of sealing rings 24 in the waterproof sealing device 20 can be set according to the waterproofing requirements of specific scenarios, for example in... Figure 6 In the embodiment shown, the sealing and waterproofing device 20 includes two sealing rings 24, which are spaced apart along the axial direction of the differential pressure cylinder 21, thereby ensuring effective waterproofing between the differential pressure cylinder 21 and the housing 100.

[0131] This application does not limit the specific type of the elastic element 22. For example, in some embodiments, the elastic element 22 may be a spring to simplify the structure of the sealing and waterproofing device 20, thereby making the structure of the electronic device 1000 simpler.

[0132] In addition, such as Figure 7As shown, in some embodiments of the present application, the groove bottom of the mounting groove 104 further comprises a first protrusion 1041, and the second through hole 102 penetrates the first protrusion 1041, so as to make the cavity of the shell 100 communicate with the mounting groove 104. Since the pressure difference cylinder 21 is mounted in the mounting groove 104, and the pressure difference cylinder 21 is sealed and abuts against the circumferential groove wall of the mounting groove 104 through the sealing ring 24, the space formed by the sealing of the pressure difference cylinder 21 and the circumferential groove wall of the mounting groove 104 towards the second through hole 102 is connected with the cavity through the second through hole 102, so that the pressure on the side of the pressure difference cylinder 21 towards the second through hole 102 is the cavity pressure of the electronic device 1000, that is, the pressure on the side of the pressure difference cylinder 21 covering the orifice of the second through hole 102 is the cavity pressure of the electronic device 1000.

[0133] Continuing to refer to Figure 6 In some embodiments of the present application, when the elastic member 22 is a spring, the spring can be sleeved on the first protrusion 1041. In this way, the first protrusion 1041 can guide the axial movement of the spring during the extrusion or release of the elastic force of the spring, so as to reduce the risk of bending of the spring during the movement, improve the movement stability of the spring, and improve the movement stability of the pressure difference cylinder 21.

[0134] The above embodiments are only exemplary display of the setting mode of the elastic member 22 and the sealing ring 24 of the plugging waterproof device 20, and in some other embodiments of the present application, the sealing ring 24 can be located in the pressure difference cylinder 21 and sleeved on the first protrusion 1041, so as to realize the waterproof sealing between the pressure difference cylinder 21 and the first protrusion 1041, and realize the waterproof sealing of the pressure difference cylinder to the second through hole 102. It can be understood that, in this embodiment, the area formed by the sealing of the pressure difference cylinder 21 and the first protrusion 1041 through the sealing ring 24 can be communicated with the cavity through the second through hole 102, so that the pressure on the side of the pressure difference cylinder 21 towards the second through hole 102 is also the cavity pressure, which can also be understood as the pressure on the side of the pressure difference cylinder 21 covering the orifice of the second through hole 102 is the cavity pressure of the electronic device 1000.

[0135] In addition, the elastic member 22 can be sleeved on the pressure difference cylinder 21 and abut against the pressure difference cylinder 21 and the shell 100 respectively, so as to ensure the movement stability of the elastic member 22 while realizing the elastic abutment with the pressure difference cylinder 21.

[0136] As can be seen from the above description, in some embodiments of the present application, the plugging waterproof device 20 can comprise a first sealing gasket 231 and a balance pad 25. Referring to Figure 8 , Figure 8A schematic view of an assembly relationship between the differential pressure cylinder and the first sealing gasket and the balance gasket provided by the embodiments of the present application is shown in FIG. 2. As can be seen, along the radial direction of the differential pressure cylinder 21, the first sealing gasket 231 and the balance gasket 25 can be located on both sides of the differential pressure cylinder 21. It is worth mentioning that, in some embodiments of the present application, for example, in the embodiment shown in FIG. 2, along the axial direction of the differential pressure cylinder 21, the end faces of the first sealing gasket 231 and the balance gasket 25 facing the outside world are flushly arranged; while in some other embodiments of the present application, along the circumferential direction of the differential pressure cylinder 21, the end faces of the first sealing gasket 231 and the balance gasket 25 facing the outside world can also be arranged in a staggered manner. Figure 8

[0137] Referring to FIGS. 2 and 3 together, Figure 7 and Figure 8 the first extension arm 212 is connected to the end of the differential pressure cylinder 21 away from the second through hole 102. In this way, while ensuring the stroke of the first sealing gasket 231 moving in the direction towards or away from the first through hole 101, the axial dimension of the water sealing device 20 can be reduced, thereby facilitating the miniaturization design of the water sealing device 20.

[0138] In addition, the second extension arm 213 can also be connected to the end of the differential pressure cylinder 21 away from the second through hole 102. In this way, while ensuring the stroke of the balance gasket 25 moving in the direction towards or away from the housing 100, the axial dimension of the water sealing device 20 can be reduced, thereby facilitating the miniaturization design of the water sealing device 20.

[0139] It is worth mentioning that, Figure 8 only a possible structure of the water sealing device 20 provided by the present application is exemplarily shown, in some other embodiments of the present application, the water sealing device 20 can also be arranged in other possible ways to realize the connection between the first sealing gasket 231 and the balance gasket 25 and the differential pressure cylinder 21, for example, the water sealing device 20 can include an annular extension arm arranged circumferentially around the outside of the differential pressure cylinder 21, and then the first sealing gasket 231 and the balance gasket 25 can be arranged in the annular extension arm. In addition, the water sealing device 20 can also be arranged in other possible ways, which are not listed here.

[0140] The material of the differential pressure cylinder 21 is not limited in the present application, exemplarily, in some embodiments of the present application, the material of the differential pressure cylinder 21 can be metal material such as stainless steel, or non-metal material such as plastic.

[0141] ​As can be seen from the above, the first sealing gasket 231 and the balance gasket 25 can be elastic gaskets such as silica gel gaskets that can be elastically deformed. In addition, the first sealing gasket 231 and the balance gasket 25 can be connected to the corresponding extension arms respectively by means of adhesion. Alternatively, the first sealing gasket 231 and the balance gasket 25 can be formed on the first extension arm 212 and the second extension arm 213 respectively by means of injection molding, so as to reduce the processing difficulty of the sealing and waterproof device 20 and improve the connection reliability of the first sealing gasket 231 and the balance gasket 25 with the corresponding extension arms.

[0142] It can be understood that, in some embodiments of the present application, for example, reference can be made to Figure 9 , Figure 9 As shown in the exploded view of the electronic device shown in Figure 7 , the first extension arm 212 can further include a recessed portion 2121. During the process of forming the first sealing gasket 231 on the first extension arm 212 by means of injection molding, the injection molding material can fill the recessed portion 2121 and protrude from the surface of the first extension arm 212, that is, part of the first sealing gasket 231 is located in the recessed portion and part of the first sealing gasket 231 protrudes from the surface of the first extension arm 212, which is beneficial to improve the bonding area of the first sealing gasket 231 with the first extension arm 212, thereby improving the connection reliability of the first sealing gasket 231 with the first extension arm 212. Similarly, when the balance gasket 25 is formed on the second extension arm 213 by means of injection molding, a recessed portion can also be provided on the second extension arm 213, so that part of the balance gasket 25 is located in the recessed portion and part of the balance gasket 25 protrudes from the surface of the second extension arm 213, so as to improve the bonding force between the balance gasket 25 and the second extension arm 213. The above embodiments are only some exemplary descriptions of the connection mode of the first sealing gasket 231 and the balance gasket 25 with the corresponding extension arms, and on this basis, other possible connection modes of the first sealing gasket 231 and the balance gasket 25 with the corresponding extension arms can also be adopted, as long as the connection reliability can be ensured.

[0143] It should be noted that, in the present application, the forming mode of the first sealing gasket 231 on the first extension arm 212 can be the same as or different from the forming mode of the balance gasket 25 on the second extension arm 213.

[0144] Continuing to refer to Figure 9 , in the embodiment shown in Figure 9 , the specific setting mode of the waterproof and breathable film assembly 10 in the electronic device 1000 is shown by taking the hole opening of the first through hole 101 towards the cavity as an example.

[0145] The present application does not limit the specific structure of the waterproof and breathable film assembly 10, and exemplary reference can be made to Figure 10 , Figure 10This is a schematic diagram of a waterproof and breathable membrane assembly provided in an embodiment of this application. Figure 10 As shown, the waterproof and breathable membrane assembly 10 includes a first waterproof and breathable membrane 11 and a second waterproof and breathable membrane 12, wherein the first waterproof and breathable membrane 11 and the second waterproof and breathable membrane 12 are stacked, and the first waterproof and breathable membrane 11 is located on the outward-facing side of the second waterproof and breathable membrane 12. This two-layer waterproof and breathable membrane design helps to improve the waterproof rating of the waterproof and breathable membrane assembly 10, thereby improving the overall waterproof performance of the electronic device 1000.

[0146] It is worth mentioning that, in this application, the first waterproof and breathable membrane 11 and the second waterproof and breathable membrane 12 are stacked together, meaning that at least part of the first waterproof and breathable membrane 11 and the second waterproof and breathable membrane 12 overlap along the stacking direction. Furthermore, the first waterproof and breathable membrane 11 and the second waterproof and breathable membrane 12 can be configured as follows: Figure 10 As shown in the adjacent spacing arrangement, in some embodiments, other layer structures may also be provided between the first waterproof and breathable membrane 11 and the second waterproof and breathable membrane 12, which are not limited in this application.

[0147] In some embodiments of this application, the oleophobic rating of the first waterproof and breathable membrane 11 is higher than that of the second waterproof and breathable membrane 12, thereby improving the corrosion resistance of the waterproof and breathable membrane assembly 10 and thus enhancing its structural reliability. Additionally, the waterproof rating of the second waterproof and breathable membrane 12 is higher than that of the first waterproof and breathable membrane 11, which improves the waterproof performance of the waterproof and breathable membrane assembly 10 and thus enhances the waterproof performance of the electronic device 1000. In other embodiments, the waterproof rating of the second waterproof and breathable membrane 12 may be less than or equal to that of the first waterproof and breathable membrane 11 to meet the waterproof requirements of the corresponding scenario.

[0148] Understandably, in some scenarios with lower waterproofing requirements, the waterproof and breathable membrane assembly 10 may consist of only one layer of waterproof and breathable membrane in order to reduce the cost of electronic devices while meeting waterproofing requirements.

[0149] Furthermore, in this application, the sealing trigger condition of the waterproofing device 20 for the first through-hole 101 can be set by selecting the waterproof rating of the waterproof and breathable membrane. For example, when the waterproof rating of the waterproof and breathable membrane is low, the waterproofing device 20 can be designed to seal the first through-hole 101 under water pressure at a relatively low water depth. For example, at a water depth of 1 ATM, 2 ATM, or 3 ATM, the differential pressure cylinder 21 can drive the first sealing gasket 231 toward the first through-hole 101 and seal the first through-hole. This helps to reduce the cost of the waterproof and breathable membrane assembly 10.

[0150] Considering that waterproof and breathable membranes are typically flexible membranes, in some embodiments of this application, such as Figure 9As shown, the waterproof plugging device 20 further comprises a support net 30, the support net 30 is located on the side of the waterproof and breathable membrane assembly 10 facing the cavity, and the hardness of the support net 30 is greater than the hardness of the first waterproof and breathable membrane 11 and greater than the hardness of the second waterproof and breathable membrane 12. In this way, the support net 30 can support each waterproof and breathable membrane in the waterproof and breathable membrane assembly 10, which is beneficial to improve the structural reliability of the waterproof and breathable membrane assembly 10.

[0151] The present application does not limit the specific setting mode of the support net 30. For example, in one possible embodiment of the present application, the material of the support net 30 can be stainless steel to improve the support reliability of the support net 30 to the waterproof and breathable membrane assembly 10. In addition, the aperture d1 of the mesh of the support net 30 can satisfy: 0 < d1 ≤ 0.25 mm, for example, d1 can be 0.1 mm, 0.12 mm, 0.15 mm, 0.2 mm or 0.23 mm, etc. In this way, while ensuring the structural reliability of the support net 30, the influence of the support net 30 on the air permeability of the electronic device is reduced.

[0152] In some embodiments of the present application, the waterproof plugging device 20 further comprises a pressing support 40. As shown, Figure 9 The pressing support 40 is located in the cavity, the support net 30 can be located between the pressing support 40 and the waterproof and breathable membrane assembly 10, and the pressing support 40 and the waterproof and breathable membrane assembly 10 abut. In this way, the assembly of the support net 30, the waterproof and breathable membrane assembly 10 and the shell 100 can be realized through the connection of the pressing support 40 and the shell 100, so as to simplify the assembly process of the electronic device 1000.

[0153] Continue to refer to Figure 9 In some embodiments of the present application, the support net 30 and the pressing support 40 are further provided with a foam 34, and the foam 34 can be bonded with at least one of the support net 30 and the pressing support 40. In this way, the support net 30 and the pressing support 40 abut through the foam 34, which improves the abutting reliability of the support net 30, the pressing support 40 and the waterproof and breathable membrane assembly 10, thereby facilitating the improvement of the adhesion reliability of the waterproof and breathable membrane assembly 10 and the shell 100, and improving the waterproof effect of the waterproof and breathable membrane assembly 10.

[0154] It is worth mentioning that in some embodiments of the present application, the waterproof plugging device 20 can also not be provided with the support net 30, but the adhesion of the waterproof and breathable membrane assembly 10 and the shell 100 can be realized through the abutment of the pressing support 40 and the waterproof and breathable membrane assembly 10. Among them, the pressing support 40 and the waterproof and breathable membrane assembly 10 can directly abut, or the plugging assembly 1 further comprises a foam 34, and the foam 34 is located between the pressing support 40 and the waterproof and breathable membrane assembly 10 to realize the indirect abutment of the pressing support 40 and the waterproof and breathable membrane assembly 10.

[0155] Figure 11 A structural schematic diagram of the compression support provided in the embodiments of the present application is shown in FIG. 1. As shown in FIG. 1, in the present application, the compression support 40 can further include a fourth through hole 41. It can be understood that, referring to FIGS. 1 and 2 together, Figure 11 Figure 9 and Figure 11 , the fourth through hole 41 is in communication with the first through hole 101, so as to meet the air permeation requirement of the electronic device 1000.

[0156] Due to the effect of the external water pressure, the first sealing gasket 231 will block the orifice of the first through hole 101 at the same time, and also seal the liquid in the first through hole 101. In some application scenarios, for example, in the scenario where the electronic device 1000 reciprocates between the low-pressure external environment and the high-pressure external environment, the water-proof blocking device 20 will repeatedly move in the axial direction, which causes the repeated change of the cavity pressure between the water-proof air-permeable membrane assembly 10 and the sealing gasket 23. In this case, the water-proof air-permeable membrane assembly 10 has the risk of micro water seepage. In view of this, referring to FIGS. 1 and 2 together, Figure 9 , the electronic device 1000 can further include a third water-proof air-permeable membrane 50, which is away from the external environment relative to the water-proof air-permeable membrane assembly 10, or in other words, the third water-proof air-permeable membrane 50 is close to the cavity relative to the water-proof air-permeable membrane assembly 10, and the third water-proof air-permeable membrane 50 covers the orifice of the first through hole 101. In this way, the third water-proof air-permeable membrane 50 can be used to avoid the water seeping out through the water-proof air-permeable membrane assembly 10 from entering the cavity of the electronic device 1000, thereby facilitating the improvement of the overall water-proof reliability of the electronic device 1000, and facilitating the prolongation of the service life of the electronic device 1000.

[0157] As shown in FIGS. 1 and 2, in some embodiments of the present application, the third water-proof air-permeable membrane 50 can be located on the side of the compression support 40 away from the water-proof air-permeable membrane assembly 10, and the third water-proof air-permeable membrane 50 covers the orifice of the fourth through hole 41. In this way, it is beneficial to improve the structural compactness of the electronic device 1000, thereby facilitating the miniaturization design of the electronic device 1000, or reserving space for the setting of more functional modules in the electronic device 1000, so as to improve the functional diversity of the electronic device 1000. Figure 9 In addition, referring to FIGS. 1 and 2 together,

[0158] , the side of the compression support 40 facing the third water-proof air-permeable membrane 50 can be further provided with a containing groove 42. At least part of the third water-proof air-permeable membrane 50 can be contained in the containing groove 42, so as to improve the connection reliability between the third water-proof air-permeable membrane 50 and the compression support 40, effectively seal the fourth through hole 41, and at the same time, facilitate the reduction of the additional space occupied by the third water-proof air-permeable membrane 50. Figure 11

[0159] ​​The above embodiments are merely illustrative examples of the specific arrangement of the third waterproof and breathable membrane 50 in the electronic device 1000. The specific arrangement of the third waterproof and breathable membrane 50 is not limited to these examples. For instance, in some embodiments, the third waterproof and breathable membrane 50 can be directly adhered to the housing 100 or disposed on the support mesh 30. These embodiments are not listed here, but all should be understood to fall within the protection scope of this application.

[0160] Can be referred to together Figure 6 and Figure 9 The electronic device 1000 may also include a first fastener 60 such as a screw or bolt, which can be threaded through the second through hole 102 and connected to the clamping bracket 40. This avoids occupying additional space in the housing 100 to connect the clamping bracket 40 to the housing 100, thereby saving space in the housing 100 and improving the structural compactness of the electronic device 1000.

[0161] In other embodiments of this application, the first fastener 60 may not be disposed inside the differential pressure cylinder 21, but may be connected to other parts of the housing 100 to achieve the connection between the clamping bracket 40 and the housing 100. In addition, as mentioned above, the elastic member 22 may also be located outside the differential pressure cylinder 21, for example, it may abut against the first extension arm 212 and the second extension arm 213 to indirectly apply a rebound force toward the outside to the differential pressure cylinder 21.

[0162] It is understood that the above embodiments are merely an exemplary demonstration of the connection method between the clamping bracket 40 and the housing 100. In other embodiments of this application, the connection between the clamping bracket 40 and the housing 100 can also be achieved by means of welding, riveting, or bonding, but not limited to these methods.

[0163] You can continue to refer to Figure 9 In some embodiments of this application, the sealing component 1 may further include a support sheet 70, which is closer to the outside than the waterproof and breathable membrane component 10. For example... Figure 9 As shown, the support piece 70 is also located on the side of the first through hole 101 facing outwards. This application does not limit the specific structure of the support piece 70; exemplarily, refer to... Figure 12 , Figure 12 This is a schematic diagram of a support sheet provided in an embodiment of this application. Figure 12 As shown, the support piece 70 includes a fifth through hole 71, and the fifth through hole 71 is connected to... Figure 9The first through hole 101 is communicated with the first through hole 101 shown in the middle to meet the air permeability requirement of the electronic device 1000. In addition, the hardness of the support sheet 70 is greater than the hardness of the shell 100. In this way, under the action of the pressure difference between the outside and the cavity, when the pressure difference cylinder 21 moves in the axial direction, the first sealing gasket 231 can be driven to move in the direction towards the fifth through hole 71, so as to indirectly achieve the blocking of the first through hole 101 by blocking the fifth through hole 71 by the first sealing gasket 231, thereby reducing the impact force of the first sealing gasket 231 applied to the shell 100, and improving the structural reliability of the shell 100. That is, driving the first sealing gasket 231 to move in the direction towards the first through hole 101 of the shell 100 for blocking the first through hole 101 can mean that the first sealing gasket 231 moves towards the first through hole 101 to directly block the first through hole 101, or the first sealing gasket 231 moves towards the structure covering the first through hole 101 to indirectly block the first through hole 101 by blocking the structure. In addition, in the present application, covering can be direct contact and covering, or can be non-contact relationship, for example, spacing some structures, but meeting the spacing covering relationship in the stacking direction.

[0164] It can be understood that in some embodiments of the present application, under the action of the pressure of the outside, the pressure difference cylinder 21 moves in the second direction, and the first sealing gasket 231 is driven to move in the direction away from the fifth through hole 71 to release the fifth through hole 71, thereby releasing the first through hole 101 to realize the communication between the inside and the outside of the cavity of the electronic device 1000. The first through hole 101 can serve as a balance hole to equalize the pressure in the cavity of the electronic device 1000 to the outside pressure.

[0165] The present application does not limit the material of the support sheet 70, which can exemplarily be a metal material, or can also be a non-metal material with relatively high hardness.

[0166] Continuing to refer to Figure 12 The support sheet 70 can include a second protrusion 72 located on the side of the support sheet 70 facing the outside. In some embodiments of the present application, the second protrusion 72 can be arranged around the fifth through hole 71, or it can also be understood that the fifth through hole 71 penetrates the second protrusion 72. In the present application, by arranging the second protrusion 72 around the fifth through hole 71, the blocking of the fifth through hole 71 can be achieved when the first sealing gasket 231 abuts against the second protrusion 72 and blocks the area surrounded by the second protrusion 72, which is beneficial to improve the blocking reliability of the first sealing gasket 231 to the fifth through hole 71, thereby improving the waterproof performance of the electronic device 1000.

[0167] It can be understood that the part of the first sealing gasket 231 for plugging the fifth through hole 71 projects on the support sheet 70 to cover the second protrusion 72. The present application does not limit the shape of the end face of the first sealing gasket 231 for plugging the fifth through hole 71. For example, as shown in Figure 13a Figure 13a A schematic diagram of one setting mode of the first sealing gasket and the support sheet provided in the embodiments of the present application is shown in Figure 13a In the embodiment shown in the figure, the end face of the first sealing gasket 231 facing the second protrusion 72 is a convex surface, which may, for example, be a spherical surface, etc. In this way, when the first sealing gasket 231 and the second protrusion 72 are in abutment, the rebound force of the first sealing gasket 231 from the second protrusion 72 is relatively small, thereby facilitating the improvement of the plugging reliability of the first sealing gasket 231 to the area surrounded by the second protrusion 72, and further improving the sealing effect of the first sealing gasket 231 on the first through hole 101.

[0168] Figure 13b A schematic diagram of another setting mode of the first sealing gasket and the support sheet provided in the embodiments of the present application is shown in Figure 13b In the embodiment shown in the figure, the end face of the first sealing gasket 231 facing the second protrusion 72 is a plane, which can achieve the plugging of the area surrounded by the second protrusion 72 while simplifying the processing technology of the first sealing gasket 231.

[0169] Figure 13c A schematic diagram of another setting mode of the first sealing gasket and the support sheet provided in the embodiments of the present application is shown in Figure 13c In the embodiment shown in the figure, the end face of the first sealing gasket 231 facing the second protrusion 72 is a concave surface, which can still achieve effective plugging of the area surrounded by the second protrusion 72, thereby achieving waterproof sealing of the first through hole 101.

[0170] The above embodiments are only some exemplary displays of the structure of the support sheet 70 and the first sealing gasket 231 provided in the present application. In other embodiments of the present application, the support sheet 70 and the first sealing gasket 231 can also adopt other possible structural settings, for example, the support sheet 70 can also adopt a flat plate design, etc., which are not listed one by one here, but should be understood as falling within the protection scope of the present application.

[0171] The above embodiments can continue to refer to Figure 9 ​The electronic device 1000 can further include an appearance decoration cover 80 located on the side of the differential pressure cylinder 21 facing the outside. In addition, the appearance decoration cover 80 can be connected with the shell 100, so as to limit the movement of the differential pressure cylinder 21 in the axial direction away from the cavity, thereby avoiding the differential pressure cylinder 21 from falling off the shell 100, so as to improve the structural reliability of the electronic device 1000. Moreover, since the appearance decoration cover 80 can be located at the outermost side of the shell 100, it serves as an appearance part of the electronic device, which is conducive to improving the appearance aesthetics of the electronic device 1000.

[0172] In some embodiments of the present application, the appearance decoration cover 80 and the shell 100 are detachably connected, which is conducive to improving the convenience of maintaining and replacing the waterproof sealing device.

[0173] The present application does not limit the specific connection mode of the appearance decoration cover 80 and the shell 100. For example, the appearance decoration cover 80 and the shell 100 can be threadedly connected by screws or bolts, or can be clamped by a clamping structure, so as to meet the detachable connection requirement of the appearance decoration cover 80 and the shell 100. For example, as shown in Figure 9 , one end of the appearance decoration cover 80 can be threadedly connected with the shell 100 by a second fastener 61 such as a screw or a bolt, and the other end of the appearance decoration cover 80 is clamped with the shell 100.

[0174] In some embodiments of the present application, as shown in Figure 9 , the appearance decoration cover 80 is provided with a clamping buckle 82, and the shell 100 is provided with a clamping groove 105. The clamping buckle 82 is clamped with the clamping groove 105, so as to realize the clamping of the appearance decoration cover 80 and the shell 100. In other embodiments of the present application, the clamping buckle can also be provided on the shell, and the clamping groove can be provided on the appearance decoration cover 80 to realize the clamping of the appearance decoration cover 80 and the shell 100.

[0175] Figure 14 A structural schematic view of the appearance decoration cover provided in the embodiments of the present application can be used to show the structure of the appearance decoration cover 80 of the electronic device 1000 shown in Figure 9 . As shown in Figure 14 , in some embodiments of the present application, the appearance decoration cover 80 includes a sixth through hole 81, and the differential pressure cylinder 21 communicates with the outside through the sixth through hole 81, so that the pressure on the side of the differential pressure cylinder 21 facing the appearance decoration cover 80 is the outside pressure.

[0176] In some embodiments of the present application, the aperture d2 of the sixth through hole 81 satisfies: 0 < d2≤ 0.25 mm, and exemplarily, d2 can be 0.1 mm, 0.12 mm, 0.15 mm, 0.2 mm or 0.23 mm, etc. In this way, the filtration of some larger-particle impurities can be achieved to improve the dustproof effect of the electronic device 1000.

[0177] It is worth mentioning that the specific shape of the sixth through hole 81 is not limited in the present application, which can be exemplarily a circular hole, or a long hole, or other regular or irregular shapes. When the sixth through hole 81 is a non-circular hole, its maximum radial dimension can be the above-mentioned d2 to ensure the dustproof effect of the electronic device 1000.

[0178] Continuing to refer to Figure 9 In some embodiments of the present application, the electronic device 1000 can further include a dustproof screen 90 located on the side of the appearance decoration cover 80 facing the shell 100, and the dustproof screen 90 is located at the aperture of the sixth through hole 81. In addition, the aperture of the mesh hole of the dustproof screen 90 is smaller than the aperture of the sixth through hole 81, so as to filter smaller-particle impurities through the dustproof screen 90, thereby further improving the dustproof effect of the electronic device 1000.

[0179] It is worth mentioning that the specific arrangement of the dustproof screen 90 is not limited in the present application, and in one possible embodiment, the dustproof screen 90 can be a double-layer structure to achieve a hierarchical filtration of small-particle impurities, thereby improving the dustproof level of the electronic device 1000.

[0180] It is worth mentioning that in the above-mentioned embodiments of the present application, the shielding of the differential pressure cylinder 21, the first extension arm 212 and the second extension arm 213 by one appearance decoration cover 80 is exemplarily introduced. In some other embodiments of the present application, the appearance decoration cover 80 can be multiple, so that each appearance decoration cover 80 shields at least one of the differential pressure cylinder 21, the first extension arm 212 and the second extension arm 213, which is beneficial to improve the design flexibility of the appearance decoration cover 80, thereby improving the design flexibility of the electronic device 1000.

[0181] Figure 15 Another structural schematic diagram of an electronic device provided in an embodiment of the present application is shown in Figure 15 In the embodiment shown, the shell 100 of the electronic device 1000 further includes a third through hole 103, which can be provided, for example, in the frame of the shell 100. The third through hole 103 can be, for example, a balance hole for balancing the pressure inside and outside the cavity of the electronic device 1000, or can be a hole for realizing the audio effect of an audio device such as a microphone or a loudspeaker, or can be a hole for realizing the function of a pressure measuring device, which is not limited in the present application.

[0182] With reference to the above description, Figure 15 In this embodiment, the sealing and waterproof device 20 can include a first sealing gasket 231 and a second sealing gasket 232. The first sealing gasket 231 and the second sealing gasket 232 are located on both sides of the differential cylinder 21 along the radial direction of the differential cylinder 21. Under the action of the external pressure, the differential cylinder 21 moves in the axial direction, and the second sealing gasket 232 is also driven to move in the direction towards the third through hole 103 to seal the third through hole 103, thereby achieving the waterproof sealing of the third through hole 103. In addition, under the action of the external pressure, the differential cylinder 21 moves in the axial direction, and the second sealing gasket 232 is also driven to move in the direction away from the third through hole 103 to release the third through hole 103, thereby achieving the conduction between the inside and outside of the cavity of the electronic device 1000.

[0183] It can be understood that the first sealing gasket 231 can be arranged on the first extension arm 212, and the second sealing gasket 232 can be arranged on the third extension arm 214. The arrangement of the second sealing gasket 232 on the third extension arm 214 can refer to the description of the arrangement of the first sealing gasket 231 on the first extension arm 212. The connection mode of the third extension arm 214 and the differential cylinder 21 can refer to the description of the fixing mode of the second extension arm 213 and the differential cylinder 21 and the fixing mode of the first extension arm 212 and the differential cylinder 21. Here, no further description is given.

[0184] It can be understood that, in Figure 15 In the embodiment shown, a waterproof and breathable film assembly 10 can also be arranged at the third through hole 103 to meet the lower waterproof requirement of the electronic device 1000 when the second sealing gasket 232 releases the third through hole 103. The specific arrangement mode of the waterproof and breathable film assembly 10 at the third through hole 103 can refer to the description in any of the above embodiments, and no further description is given herein.

[0185] In addition, Figure 15 The electronic device shown can also be provided with at least one of the support net 30, the pressing support 40, the third waterproof and breathable film 50, and the support sheet 70. The specific arrangement mode thereof can refer to the description in any of the above embodiments, and no further description is given herein.

[0186] In Figure 15 In the electronic device shown, the sealing and waterproof device 20 can be arranged to achieve the waterproof sealing of the plurality of through holes on the shell 100, which is beneficial to improve the structural compactness of the electronic device 1000, thereby meeting the high-level waterproof requirement of the electronic device 1000 while facilitating the miniaturization design of the electronic device 1000.

[0187] That is, the skilled in the art can adaptively select the number of sealing pads and balance pads in the plugging waterproof device 20 according to the number of through holes to be plugged, so as to ensure the force balance of the pressure difference cylinder 21, improve the plugging reliability of the plugging waterproof device 20 on the through hole, and meet the waterproof requirement of the electronic device 1000.

[0188] The above embodiments are only some exemplary display of the specific setting mode of the electronic device 1000 provided by the present application, and based on the design principle of the electronic device 1000, a series of adaptive adjustments can be made to the specific structure of the electronic device 1000 according to the specific design needs. For example, in some embodiments of the present application, the waterproof and breathable membrane assembly 10 can also be located between the support sheet 70 and the orifice of the first through hole 101 as shown in Figure 9 , at this time, the pressing support 40 is not required, and the waterproof and breathable membrane assembly 10 can be pressed to the shell 100 through the connection of the support sheet 70 and the shell 100. That is, the waterproof and breathable membrane assembly 10 can be arranged on the side of the first through hole 101 facing the cavity, or on the side of the first through hole 101 facing the outside. In some other embodiments, the plugging assembly 1 can also not include the waterproof and breathable membrane assembly 10, that is, it only meets the waterproof requirement in the higher waterproof level scene through the plugging waterproof device 20. Here, various possible setting modes of the electronic device provided by the present application are not listed one by one, but they should be understood as falling within the protection scope of the present application.

[0189] In the above embodiments, the electronic device 1000 is taken as a diving watch or a diving bracelet, and some possible setting modes thereof are introduced. When the electronic device 1000 is other forms of products, the specific setting mode is similar, which is not described here.

[0190] It is worth mentioning that in each embodiment of the present application, if there is no special description and logical conflict, the terms and / or descriptions of different embodiments include consistency and can be mutually referred, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0191] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A closure assembly (1) for being arranged in a housing, characterized in that The sealing waterproof device (20) comprises a pressure differential cylinder (21) and a first sealing gasket (231), the number of the pressure differential cylinder (21) is one, and the pressure differential cylinder (21) is used for covering the orifice of the second through hole (102) of the shell. Under the action of external pressure, the pressure differential cylinder (21) can move in a first direction, driving the first sealing gasket (231) to move in a direction towards the first through hole (101) of the shell, so as to block the first through hole (101). Under the action of external pressure, the pressure differential cylinder (21) can move in a second direction, driving the first sealing gasket (231) to move in a direction away from the first through hole (101), so as to release the first through hole (101), and the first direction and the second direction are opposite.

2. Occlusion assembly (1) according to claim 1, characterized in that The first direction is parallel to the axial direction of the pressure differential cylinder (21); and the second direction is parallel to the axial direction of the pressure differential cylinder (21).

3. Occlusion assembly (1) according to claim 2, characterized in that The sealing waterproof device (20) further comprises a first extension arm (212), the first extension arm (212) is connected with the pressure differential cylinder (21), and the first sealing gasket (231) is arranged on the first extension arm (212).

4. Occlusion assembly (1) according to any one of claims 1 to 3, characterized in that The first extension arm (212) is connected with the end of the pressure differential cylinder (21) away from the second through hole (102).

5. Occlusion assembly (1) according to claim 4, characterized in that The sealing waterproof device (20) further comprises a balance pad (25), the first sealing gasket (231) and the balance pad (25) are located on two sides of the pressure differential cylinder (21) in the radial direction of the pressure differential cylinder (21); and the balance pad (25) is used for abutting against the shell when the first sealing gasket (231) blocks the first through hole (101).

6. Occlusion assembly (1) according to claim 4 or 5, characterized in that The first sealing gasket (231) and the balance pad (25) are both elastic pads, the first sealing gasket (231) and the balance pad (25) are used for providing elastic force towards the outside when the first sealing gasket (231) blocks the first through hole (101) and the balance pad (25) abuts against the shell.

7. Occlusion assembly (1) according to claim 6, characterized in that When the first sealing gasket (231) blocks the first through hole (101) and the balance pad (25) abuts against the shell, the elastic force provided by the first sealing gasket (231) generates a moment M1 on the pressure differential cylinder (21), and the elastic force provided by the balance pad (25) generates a moment M2 on the pressure differential cylinder (21), and the following conditions are met: |M1-M2| / M2≤30% or |M1-M2| / M1≤30%.

8. Occlusion assembly (1) according to claim 7, characterized in that The sealing waterproof device (20) further comprises a second extension arm (213), the second extension arm (213) is connected with the pressure differential cylinder (21), and the balance pad (25) is arranged on the second extension arm (213).

9. Occlusion assembly (1) according to any one of claims 6 to 8, characterized in that The second extension arm (213) is connected with the end of the pressure differential cylinder (21) away from the second through hole (102).

10. Occlusion assembly (1) according to claim 9, characterized in that The first extension arm (212), the pressure differential cylinder (21) and the second extension arm (213) are integrally formed.

11. Occlusion assembly (1) according to claim 9 or 10, characterized in that ​ 12. Occlusion assembly (1) according to any one of claims 1 to 11, characterized in that The differential pressure cylinder (21) is arranged in the mounting groove (104) of the shell, and the opening of the second through hole (102) is located at the groove bottom of the mounting groove (104).

13. Occlusion assembly (1) according to claim 12, characterized in that The sealing waterproof device (20) further comprises a sealing ring (24), the sealing ring (24) is sleeved on the differential pressure cylinder (21), and the sealing ring (24) is used for abutting against the circumferential groove wall of the mounting groove (104).

14. Occlusion assembly (1) according to claim 12 or 13, characterized in that The sealing waterproof device (20) further comprises an elastic member (22), which abuts against the differential pressure cylinder (21) along the axial direction of the differential pressure cylinder (21).

15. Occlusion assembly (1) according to claim 14, characterized in that At least part of the elastic member (22) is located in the differential pressure cylinder (21); the elastic member (22) is a spring, and the spring is sleeved on the first protrusion (1041) of the groove bottom of the mounting groove (104).

16. Occlusion assembly (1) according to any one of claims 1 to 15, characterized in that The sealing waterproof device (20) further comprises a second sealing gasket (232), which is located on the two sides of the differential pressure cylinder (21) along the radial direction of the differential pressure cylinder (21); when the differential pressure cylinder (21) moves along the first direction, the second sealing gasket (232) is driven to move towards the third through hole (103) of the shell, so as to seal the third through hole (103).

17. Occlusion assembly (1) according to claim 16, characterized in that When the differential pressure cylinder (21) moves along the second direction, the second sealing gasket (232) is driven to move away from the third through hole (103), so as to release the third through hole (103), and the first direction is opposite to the second direction.

18. Occlusion assembly (1) according to any one of claims 1 to 17, characterized in that The sealing assembly (1) further comprises a waterproof and breathable membrane assembly (10), which is used for covering the opening of the first through hole (101).

19. Occlusion assembly (1) according to claim 18, characterized in that The waterproof and breathable membrane assembly (10) comprises a first waterproof and breathable membrane (11) and a second waterproof and breathable membrane (12), the first waterproof and breathable membrane (11) and the second waterproof and breathable membrane (12) are arranged in layers, and the first waterproof and breathable membrane (11) is located on the side of the second waterproof and breathable membrane (12) facing the outside.

20. Occlusion assembly (1) according to claim 19, characterized in that The oil-repellent grade of the first waterproof and breathable membrane (11) is higher than that of the second waterproof and breathable membrane (12).

21. Occlusion assembly (1) according to claim 19 or 20, characterized in that The sealing assembly (1) further comprises a support net (30), which is located on the side of the waterproof and breathable membrane assembly (10) away from the outside, the hardness of the support net (30) is greater than that of the first waterproof and breathable membrane (11) and that of the second waterproof and breathable membrane (12).

22. Occlusion assembly (1) according to claim 21, characterized in that The support net (30) comprises mesh holes, and the aperture d1 of the mesh holes satisfies: 0 < d1 ≤ 0.25 mm.

23. Occlusion assembly (1) according to any one of claims 18 to 22, characterized in that The waterproof and breathable membrane assembly (10) covers the opening of the first through hole (101) away from the outside.

24. Occlusion assembly (1) according to any one of claims 18 to 23, characterized in that The sealing assembly (1) further comprises a third waterproof and breathable membrane (50), which is located away from the outside with respect to the waterproof and breathable membrane assembly (10), and covers the opening of the first through hole (101) away from the outside.

25. Occlusion assembly (1) according to any one of claims 18 to 23, characterized in that The sealing assembly (1) further comprises a compression support (40) configured to be connected with the shell; the compression support (40) and the waterproof and breathable membrane assembly (10) are in abutment.

26. Occlusion assembly (1) according to claim 25, characterized in that The compression support (40) comprises a fourth through hole (41) in communication with the first through hole (101). The sealing assembly (1) further comprises a third waterproof and breathable membrane (50) located on a side of the compression support (40) facing away from the outside, and covering the aperture of the fourth through hole (41).

27. Occlusion assembly (1) according to claim 25 or 26, characterized in that The sealing assembly (1) further comprises a first fastener (60) configured to pass through the second through hole (102) and be connected with the compression support (40) to fix the compression support (40) to the shell.

28. Occlusion assembly (1) according to any one of claims 25 to 27, characterized in that The sealing assembly (1) further comprises a foam (34) located between the support net (30) and the compression support (40) and in abutment with the support net (30) and the compression support (40).

29. Occlusion assembly (1) according to any one of claims 1 to 28, characterized in that The sealing assembly (1) further comprises a support sheet (70) comprising a fifth through hole (71), the support sheet (70) being located on a side of the first through hole (101) facing the outside, and the fifth through hole (71) being in communication with the first through hole (101). The support sheet (70) is closer to the outside relative to the waterproof and breathable membrane assembly (10), and the hardness of the support sheet (70) is greater than the hardness of the shell; when the differential pressure cylinder (21) moves in the first direction, the first sealing gasket (231) is driven to move in a direction towards the fifth through hole (71) to seal the fifth through hole (71).

30. Occlusion assembly (1) according to claim 29, characterized in that When the differential pressure cylinder (21) moves in a second direction, the first sealing gasket (231) is driven to move in a direction away from the fifth through hole (71) to release the fifth through hole (71), the first direction and the second direction being opposite.

31. Occlusion assembly (1) according to claim 29 or 30, characterized in that The support sheet (70) comprises a second protrusion (72) located on a side of the support sheet (70) facing the outside; the second protrusion (72) surrounds the fifth through hole (71).

32. A housing assembly characterized by, The shell assembly comprises the shell and the sealing assembly (1) according to any one of claims 1-31, wherein the shell comprises the first through hole (101) and the second through hole (102), and the first through hole (101) and the second through hole (102) are arranged in a spaced manner.

33. The housing assembly of claim 32, wherein, The shell comprises a mounting groove (104), a groove bottom of the mounting groove (104) comprises a first protrusion (1041), and the second through hole (102) penetrates through the first protrusion (1041); the elastic member (22) is a spring, and the spring is sleeved on the first protrusion (1041).

34. The housing assembly of claim 32 or 33, wherein, The shell further comprises a third through hole (103), and the second through hole (102) is located between the first through hole (101) and the third through hole (103); the sealing waterproof device (20) further comprises a second sealing gasket (232), and the second sealing gasket (232) and the first sealing gasket (231) are located on two sides of the pressure difference cylinder (21) in the radial direction of the pressure difference cylinder (21); under the action of the external pressure, the pressure difference cylinder (21) moves in the axial direction, and drives the second sealing gasket (232) to move in the direction towards or away from the third through hole (103), so as to block or release the third through hole (103).

35. A housing assembly as claimed in any of Claims 32 to 34, wherein, The shell assembly further comprises an appearance decoration cover (80), and the appearance decoration cover (80) is located on the side of the pressure difference cylinder (21) facing the external environment; the appearance decoration cover (80) is connected with the shell, and the appearance decoration cover (80) comprises a sixth through hole (81) in communication with the first through hole (101).

36. The housing assembly of claim 35, wherein, The appearance decoration cover is detachably connected with the shell.

37. The housing assembly of claim 36, wherein, One end of the appearance decoration cover (80) is connected with the shell through a second fastener, and the other end of the appearance decoration cover (80) is clamped with the shell.

38. The housing assembly of claim 37, wherein, The appearance decoration cover is provided with a buckle, and the shell is provided with a clamping groove, and the buckle is clamped with the clamping groove.

39. The housing assembly of claim 37 or 38, wherein, The shell assembly further comprises a dust screen (90), and the dust screen (90) is located on the side of the appearance decoration cover (80) away from the external environment and is located at the aperture of the sixth through hole (81); the aperture of the mesh hole of the dust screen (90) is smaller than the aperture of the sixth through hole (81).

40. A housing assembly as claimed in any of Claims 35 to 39, wherein, The aperture d2 of the sixth through hole (81) satisfies: 0 < d2 ≤ 0.25 mm.

41. An electronic device, comprising: The electronic device comprises the shell assembly according to any one of claims 32-40.

42. The electronic device of claim 41, wherein, The electronic device further comprises an audio device, and the audio device is located on the side of the first through hole (101) away from the external environment.

43. The electronic device of claim 41 or 42, wherein, The shell comprises a frame (100a), and the frame (100a) comprises the first through hole (101) and the second through hole (102); the sealing assembly (1) is arranged in the frame (100a).

44. The electronic device of any of claims 41-43, wherein, The electronic device further comprises a display screen (200), and the shell further comprises a back cover (100b); the display screen (200) and the back cover (100b) are oppositely arranged; and the frame (100a) connects the display screen (200) and the back cover (100b) to form a cavity of the electronic device.

45. The electronic device of claim 44, wherein, When the difference between the pressure of the external environment and the pressure of the cavity is greater than or equal to a first set value, the pressure difference cylinder (21) moves in the axial direction towards the cavity, and drives the first sealing gasket (231) to move in the direction towards the first through hole (101), so as to block the first through hole (101).

46. The electronic device of claim 44 or 45, wherein, When the difference between the pressure of the outside and the pressure of the cavity is less than a second set value, the pressure differential cylinder (21) moves axially towards the outside, driving the first sealing gasket (231) to move in a direction away from the first through hole (101), so as to release the first through hole (101).

47. The electronic device of any of claims 41-46, wherein, The electronic device is a diving watch or a diving bracelet.

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