Crown assembly of smart watch and smart watch

Abstract

The utility model discloses a crown assembly of a smart watch and the smart watch. The crown assembly comprises a crown body; the first side of the fixing piece is mechanically coupled with a watchcase of the smart watch, and the second side of the fixing piece is connected with the crown body in a sealing manner, so that a first sealing cavity is formed between the crown body and the lining ring, and the first sealing cavity is filled with filling gas; under the condition that pressing of a user is received, the crown body moves in the first direction relative to the fixing piece, so that the first sealing cavity is compressed; under the condition that the pressing is withdrawn, the first sealing cavity is recovered under the action of the filling gas, so that the crown body is driven to move along a second direction relative to the fixed part; wherein the first direction is opposite to the second direction.

Description

Technical Field

[0001] This application relates to the technical field of smart wearable devices, for example, to a crown assembly of a smart watch and a smart watch. Background Art

[0002] Smart watches usually use a crown as an input component. A receiving recess is usually provided on the side of the watch case. The shaft of the input component extends through a through hole provided in the receiving recess into the interior of the watch case. An elastic member is provided between the receiving recess and the input component, for example, a coil spring or a pair of like-polarity magnets arranged oppositely. The elastic force of the elastic member is used to bias the operating part of the input component towards the outside of the smart watch case. In addition, a plurality of waterproof members are provided on the outer periphery of the shaft portion of the input component of the smart watch, and the plurality of waterproof members slide in a state of being pressed against the inner peripheral surface of the receiving groove.

[0003] In the above-mentioned smart watch, due to the relative movement between the input component and the outer shell, foreign matters such as sand, water or sweat are easily brought into the gap between the receiving recess of the outer shell and the input component. When the foreign matters enter the above-mentioned gap, on the one hand, it will cause the foreign matters to enter the interior of the watch, bringing the risk of affecting the performance of multiple components inside the watch; on the other hand, it will also cause the performance of the waterproof member and the elastic member to decline or even fail; furthermore, foreign matters such as sand will also cause the user to have a poor feel when operating the operating part of the input component, resulting in a decline in user experience. Summary of the Utility Model

[0004] This application provides a crown assembly of a smart watch and a smart watch, which avoids the situation of performance decline caused by foreign matter jamming, corrosion, etc. when using a traditional elastic member as a reset member, and optimizes the user's operation feel.

[0005] A crown assembly of a smart watch is provided. The smart watch includes a watch case. The crown assembly includes: a crown body; a fixing member. The first side of the fixing member is set to be mechanically coupled with the watch case, and the second side of the fixing member is set to be hermetically connected with the crown body, so as to form a first sealed cavity between the crown body and the fixing member. The first sealed cavity is filled with a filling gas; when receiving a user's press, the crown body moves relative to the fixing member in a first direction, so as to compress the first sealed cavity; when the press is withdrawn, the first sealed cavity recovers under the action of the filling gas, so as to drive the crown body to move relative to the fixing member in a second direction; wherein, the first direction is opposite to the second direction.

[0006] As an alternative technical solution of the crown assembly, the fixing member includes a first sleeve provided with a cavity. The crown body is rotatably sleeved outside the first sleeve, and the crown body is sealingly connected to the outer peripheral wall of the first sleeve. The crown body covers the opening of the cavity to form the first sealed cavity.

[0007] As an alternative technical solution of the crown assembly, the crown assembly further includes: a first sealing ring sleeved on the outer periphery of the first sleeve, and the first sealing ring is arranged to block the gap between the first sleeve and the crown body.

[0008] As an alternative technical solution of the crown assembly, the cross-section of the first sealing ring is arranged as a flat strip-shaped structure, and two opposite long sides on the cross-section of the first sealing ring respectively abut against the outer peripheral wall of the first sleeve and the inner peripheral wall of the crown body.

[0009] As an alternative technical solution of the crown assembly, the fixing member further includes a second sleeve provided with a first relief hole communicating with the cavity; the crown assembly further includes a shaft body movably penetrating through the first relief hole and the cavity in a first direction, and the crown body is connected to the shaft body.

[0010] As an alternative technical solution of the crown assembly, the crown assembly further includes: a second sealing ring sleeved on the outer periphery of the first section of the shaft body in the first relief hole, and the second sealing ring is arranged to block the gap between the shaft body and the second sleeve.

[0011] As an alternative technical solution of the crown assembly, the second sleeve is embedded in a through hole of the watch case, and the crown assembly further includes: a third sealing ring sleeved on the outer periphery of the shaft body outside the second sleeve, and the third sealing ring is arranged to block the gap between the second sleeve and the watch case.

[0012] As an alternative technical solution of the crown assembly, the fixing member further includes a third sleeve located in the first sealed cavity. The third sleeve is movably sleeved on the shaft body, and the shaft body is sealingly connected to the third sleeve. The outer peripheral part of the third sleeve is sealingly connected to the inner wall of the first sleeve. The third sleeve, the first sleeve and the shaft body enclose a second sealed cavity, and the filling gas is filled in the second sealed cavity. The filling gas can drive the third sleeve and the crown body to move away from the second sleeve along the axis of the shaft body.

[0013] As an alternative technical solution of the crown assembly, a convex ring is provided on one of the top surface of the third sleeve and the bottom surface of the crown body, the convex ring abuts against the other of the top surface of the third sleeve and the bottom surface of the crown body, the convex ring is made of a compressible material, and the convex ring is arranged to seal the gap between the top surface of the third sleeve and the crown body.

[0014] As an alternative technical solution of the crown assembly, an elastomer is provided in the second sealing cavity, and the elastomer is arranged to drive the third sleeve to move away from the first sleeve along the axis of the shaft body.

[0015] As an alternative technical solution of the crown assembly, the first end of the shaft body passes through the fixing member from the first relief hole, and the crown assembly further includes a shaft retainer, the shaft retainer is fixed to the outer peripheral wall of the first end of the shaft body, and the shaft retainer can abut against the end of the second sleeve away from the first sleeve to define the axial position of the shaft body.

[0016] Provided is a smart watch, including a watch case, a trigger switch, and the crown assembly as described above, the trigger switch is provided in the watch case, the fixing member is mechanically coupled with the mounting hole on the watch case, and when the crown body moves along the first direction, the crown body approaches and triggers the trigger switch.

[0017] As an alternative technical solution of the smart watch, when the crown body moves along the second direction, the crown body moves away from and stops triggering the trigger switch.

[0018] As an alternative technical solution of the smart watch, the watch case is provided with a mounting hole; the fixing member is connected to the mounting hole in at least one of the ways of plugging and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following will briefly introduce the drawings required for the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present application and these drawings.

[0020] Figure 1 is a schematic structural diagram of the crown assembly provided in Embodiment 1 of the present application;

[0021] Figure 2 is a cross-sectional view of the crown assembly provided in Embodiment 1 of the present application;

[0022] Figure 3 is Figure 2 an enlarged schematic view of area A in

[0023] Figure 4 is an exploded view of the crown assembly provided in the first embodiment of the present application;

[0024] Figure 5 is a cross-sectional view of the fixing member provided in the first embodiment of the present application;

[0025] Figure 6 is a structural view of the smart watch provided in the first embodiment of the present application;

[0026] Figure 7 is a cross-sectional view of the smart watch provided in the first embodiment of the present application;

[0027] Figure 8 is a partial cross-sectional view of the smart watch provided in the first embodiment of the present application;

[0028] Figure 9 is a cross-sectional view of the crown assembly provided in the second embodiment of the present application;

[0029] Figure 10 is an exploded view of the crown assembly provided in the second embodiment of the present application;

[0030] Figure 11 is a cross-sectional view of the third sleeve provided in the second embodiment of the present application;

[0031] Figure 12 is a cross-sectional view of the smart watch provided in the second embodiment of the present application;

[0032] Figure 13 is a cross-sectional view of the crown assembly provided in the third embodiment of the present application;

[0033] Figure 14 is an exploded view of the crown assembly provided in the third embodiment of the present application;

[0034] Figure 15 is a cross-sectional view of the smart watch provided in the third embodiment of the present application.

[0035] In the figure:

[0036] 1. Fixing member; 11. First sleeve; 111. Cavity; 112. L-shaped step; 113. Annular tube wall; 1131. Circular arc chamfer; 12. Second sleeve; 121. Second sealing groove; 122. Second limiting groove; 123. First relief hole; 13. Third sleeve; 131. Third sealing groove; 132. Fourth sealing groove; 2. Shaft body; 21. First sealing groove; 22. First limiting groove; 3. Crown body; 31. First sealing cavity; 32. Second sealing cavity; 4. First sealing ring; 5. Second sealing ring; 6. Third sealing ring; 7. Convex ring; 8. Fourth sealing ring; 9. Elastic body; 10. Shaft retainer; 101. Fifth sealing ring; 102. Limiting sleeve plate;

[0037] 100, Crown assembly; 200, Watch case; 210, Limiting step; 300, Trigger switch; 310, Elastic piece. Specific embodiments

[0038] The technical solutions of the embodiments of the present application will be described below in conjunction with the accompanying drawings. The described embodiments may be a part of the embodiments of the present application. Based on the embodiments of the present application, those skilled in the art can obtain other embodiments without creative efforts, and these embodiments should all fall within the scope protected by the present application.

[0039] In one embodiment, as Figure 5 shown, the smart watch includes a crown assembly 100 and a watch case 200, and the crown assembly 100 is configured to input a control signal to the watch that mates with it. As Figures 1-5 shown, the crown assembly 100 includes a crown body 3 and a fixing member 1. The first side of the fixing member 1 is mechanically coupled to the watch case 200, and the second side of the fixing member 1 is hermetically connected to the crown body 3, so as to form a first sealed cavity 31 between the crown body 3 and the fixing member 1. The first sealed cavity 31 is filled with a filling gas; when receiving the user's pressing, the crown body 3 moves relative to the fixing member 1 in a first direction, so as to compress the first sealed cavity 31; when the pressing is withdrawn, the first sealed cavity 31 recovers under the action of the filling gas, so as to drive the crown body 3 to move relative to the fixing member 1 in a second direction; wherein, the first direction is opposite to the second direction, and the first direction is the X direction indicated by the arrow in the figure.

[0040] The crown assembly 100 further includes a shaft body 2. The fixing member 1 includes a first sleeve 11 and a second sleeve 12. The first sleeve 11 is provided with a cavity 111, and a first relief hole 123 is provided in the second sleeve 12. The first relief hole 123 communicates with the cavity 111. The shaft body 2 is movably inserted along the X-axis through the first relief hole 123 and the cavity 111. The crown body 3 is connected to the shaft body 2. The crown body 3 rotatably covers the outside of the first sleeve 11. The crown body 3 is hermetically connected to the outer peripheral wall of the first sleeve 11. The crown body 3 covers the opening of the cavity 111 to form the first sealed cavity 31.

[0041] The crown assembly 100 provided in this embodiment includes a shaft body 2 that can move relative to the fixed member 1 along the X-axis and a crown body 3. When a user pushes the crown body 3 to move relative to the fixed member 1 along the X-axis or twists the crown body 3, the shaft body 2 will act accordingly, thereby inputting corresponding control signals to the smart watch. When the user presses the crown body 3 along the X-axis, the filling gas in the first sealing cavity 31 is squeezed, so the air pressure in the first sealing cavity 31 rises. Thus, when the pressing force is removed, it can push the crown body 3 to move in the opposite second direction away from the fixed member 1, causing the crown body 3 to pop back into place. The crown assembly 100 provided in this embodiment uses the filling gas in the first sealing cavity 31 as the power member for resetting, preventing foreign objects from entering the crown assembly 100, and avoiding the performance degradation caused by foreign objects getting stuck or corroded when using a traditional elastic member as the reset member, ensuring the user's operation feel.

[0042] Optionally, the crown assembly 100 further includes a first sealing ring 4. The first sealing ring 4 is sleeved on the outer periphery of the first sleeve 11, and the first sealing ring 4 is arranged to block the gap between the first sleeve 11 and the crown body 3. As Figure 2 and Figure 3 shown, the cross-section of the first sealing ring 4 is set as a flat strip-shaped structure. The two long sides opposite to each other on the cross-section of the first sealing ring 4 respectively abut against the outer peripheral wall of the first sleeve 11 and the inner peripheral wall of the crown body 3. When the crown body 3 and the fixed member 1 move relative to each other (this relative movement includes translation and rotation along the X-axis), through the flat strip-shaped cross-section structure, the first sealing ring 4 can reliably ensure the seal between the fixed member 1 and the crown body 3.

[0043] Optionally, as Figure 5 shown, an L-shaped step 112 is provided on the outer wall of the first sleeve 11. The first sealing ring 4 is tightly sleeved in the recessed area of the L-shaped step 112. Since the cross-section of the first sealing ring 4 is set as a flat strip-shaped structure, the structure of the first sealing ring 4 is adapted to the L-shaped step 112, improving the sealing effect of the first sealing ring 4 between the fixed member 1 and the crown body 3.

[0044] Optionally, the first sealing ring 4 can be formed of synthetic rubber, fluoropolymer elastomer, silicone resin or other compressible elastic materials.

[0045] Optionally, in order to improve the user's operation feel, the first sealing ring 4 can be made of a low-friction material or a low-friction layer is provided on the surface of the first sealing ring 4 in contact with the crown body 3. The low-friction layer can be formed by processes such as coating and deposition.

[0046] Optionally, the crown assembly 100 further includes a second sealing ring 5, which is sleeved around the outer circumference of the first section of the shaft body 2 within the first clearance hole 123. The second sealing ring 5 is an elastic O-ring and is compressed and disposed between the second sleeve 12 and the shaft body 2, thereby sealing the gap between the shaft body 2 and the second sleeve 12. The shaft body 2 is provided with an annular first sealing groove 21, and the second sealing ring 5 is tightly sleeved in the first sealing groove 21. The provision of the first sealing groove 21 ensures that the second sealing ring 5 remains stably in its installed position during movement of the shaft body 2, thereby ensuring the stability of the dynamic seal.

[0047] Optionally, at least two second sealing rings 5 are provided, and at least two first sealing grooves 21 are also provided accordingly, the number of which is the same as the number of second sealing rings 5. The first sealing grooves 21 are arranged at intervals along the axial direction of the shaft body 2 to improve the reliability of the seal.

[0048] Optionally, the second sealing ring 5 can be made of nitrile rubber, fluororubber, silicone rubber, ethylene propylene rubber, chloroprene rubber, butyl rubber, polytetrafluoroethylene, natural rubber, etc.

[0049] Optionally, the first end of the shaft body 2 passes through the fixing member 1 through the first clearance hole 123. The crown assembly 100 further includes a shaft retainer 10, which is fixed to the outer peripheral wall of the first end of the shaft body 2. The shaft retainer 10 can abut against the end of the second sleeve 12 facing away from the first sleeve 11 to limit the axial position of the shaft body 2. An annular first limiting groove 22 is provided on the shaft body 2. The shaft retainer 10 is configured as an annular thin sheet structure with a clearance notch provided therein so that the shaft retainer 10 can be snapped into the first limiting groove 22 to limit the movement of the shaft body 2 along the X-axis toward the crown body 3, thereby preventing the shaft body 2 and the crown body 3 from being separated from the fixing member 1 when the crown body 3 is pulled outward.

[0050] In other embodiments, the shaft retainer 10 may also be configured as other limiting structures protruding from the radial direction of the shaft body 2, or may be connected to the shaft body 2 by other connection methods such as threaded connection and welding.

[0051] Optionally, the crown body 3 includes a first annular wall disposed about the X-axis and a second wall disposed perpendicular to the X-axis. The first annular wall and the second wall together form a cylindrical structure with one side of the crown body 3 open, with the opening oriented opposite the second wall. The first annular wall and the second wall may be integrally formed, or they may be secured by threads, welding, adhesive bonding, or other means. It should be noted that regardless of which of the aforementioned securing methods is used, the connection between the first annular wall and the second wall must be sealed.

[0052] Optionally, the shaft body 2 is mechanically or electrically connected to the second wall of the crown body 3. The shaft body 2 and the crown body 3 can be integrally formed, or the shaft body 2 can also be fixed to the crown body 3 by connection means such as welding, threaded connection, or bonding.

[0053] Optionally, an annular pipe wall 113 is provided in the middle of the first sleeve 11. The annular pipe wall 113 is arranged around the X-axis and extends towards the crown body 3. The inner diameter of the annular pipe wall 113 is the same as that of the second sleeve 12. As Figure 3 shown, an arc-shaped chamfer 1131 is provided at one end of the second annular pipe wall 113 close to the crown body 3. The annular pipe wall 113 and its arc-shaped chamfer 1131 are arranged to guide the shaft body 2 to pass through the first relief hole 123.

[0054] As Figures 6-8 shown, this embodiment also provides a smart watch, which includes a watch case 200, a trigger switch 300, and the aforementioned crown assembly 100. The trigger switch 300 is arranged in the watch case 200, and the fixing member 1 is mechanically coupled with the watch case 200; when the crown body 3 moves in the first direction, the crown body 3 approaches and triggers the trigger switch 300.

[0055] When the crown body 3 moves in the second direction, the crown body 3 moves away from and stops triggering the trigger switch 300.

[0056] The fixing member 1 is fixedly inserted and sealed with the mounting hole on the watch case 200, and the shaft body 2 can be pressed against and trigger the trigger switch 300 under the push of the crown body 3.

[0057] Optionally, the second sleeve 12 is embedded in the through hole of the watch case 200. The crown assembly 100 further includes a third sealing ring 6. The third sealing ring 6 is sleeved on the outer periphery of the shaft body 2 in the second sleeve 12. The third sealing ring 6 is arranged to block the gap between the second sleeve 12 and the watch case 200, prevent foreign objects from entering the inside of the watch through the gap between the bottom wall of the first sleeve 11 and the watch case 200, and avoid affecting the performance of the internal devices of the watch.

[0058] Optionally, the third sealing ring 6 is an elastic O-ring, and the third sealing ring 6 can be made of synthetic rubber, fluoropolymer elastomer, silicone resin, or other compressible materials.

[0059] An annular second sealing groove 121 is provided on the outer wall of the second sleeve 12. The second sealing groove 121 is arranged to install the third sealing ring 6, and the third sealing ring 6 is effectively restricted in the second sealing groove 121 to ensure the sealing effect.

[0060] As Figure 8As shown, on the inner wall of the through hole of the housing opposite to the second sealing groove 121, a limiting step 210 that cooperates with the second sealing groove 121 is provided. The limiting step 210 and the second sealing groove 121 together form the installation position of the third sealing ring 6. On the other hand, the setting of the limiting step 210 is beneficial to the assembly of the third sealing ring 6. In an optional embodiment, the third sealing ring 6 can be placed at the corresponding position of the limiting step 210, and then the second sleeve 12 is inserted into the through hole of the watch case 200. The third sealing ring 6 abuts against the bottom wall of the limiting step 210 perpendicular to the X-axis, so that during the process of inserting the second sleeve 12 into the through hole of the watch case 200, the third sealing ring 6 is always kept in the installation position.

[0061] Optionally, a fixing member holder (not shown in the figure) is provided at one end of the second sleeve 12 close to the inner wall of the watch case 200. The fixing member holder can limit the position of the fixing member 1 relative to the watch case 200 on the X-axis. The fixing member holder can be fixed on the outer wall of the second sleeve 12 by means of threaded connection, snap connection or bonding, etc. In this embodiment, a second limiting groove 122 is provided on the outer wall of one end of the second sleeve 12 close to the inner wall of the watch case 200, and the fixing member holder is clamped in the second limiting groove 122 and abuts against the inner wall of the watch case 200.

[0062] Optionally, as Figure 7 shown, the smart watch further includes a shrapnel 310. The shrapnel 310 is arranged between the shaft body 2 and the trigger switch 300. When the user presses the crown body 3 to input a control signal, the crown body 3 advances towards the inside of the smart watch along the X-axis direction, so that the shaft body 2 presses the shrapnel 310 arranged between the trigger switch 300 and the shaft body 2, and then triggers the trigger switch 300 located on one side of the shrapnel 310. The trigger switch 300, the shrapnel 310 and the crown body 3 are symmetrically arranged with respect to the axis center of the shaft body 2, which can ensure that the pressing force is always on the axis of the shaft body 2, and can also ensure that the shrapnel 310 and the trigger switch 300 can still be stably fixed inside the smart watch after being pressed for a long time and multiple times. Optionally, in order to ensure the resilience of the crown body 3, the shrapnel 310 can be set as a spring-biased shrapnel 310. The spring-biased shrapnel 310 has a certain shearing force and can partially provide the resilience required by the crown body 3.

[0063] Optionally, a photoelectric sensor is further provided inside the smart watch. The photoelectric sensor can identify the rotational movement of the shaft body 2 around the X-axis and transmit the detection signal to the processing system of the smart watch.

[0064] Optionally, the filling gas in the first sealing cavity 31 is compressed gas, and the lowest air pressure value in the first sealing cavity 31 is greater than one atmosphere.

[0065] In some embodiments, as Figures 9-12As shown in the figure, the fixing member 1 further includes a third sleeve 13. The third sleeve 13 is located in the first sealing cavity 31. The third sleeve 13 is movably sleeved on the shaft body 2, and the shaft body 2 is hermetically connected to the third sleeve 13. The outer peripheral portion of the third sleeve 13 is hermetically connected to the inner wall of the first sleeve 11. The third sleeve 13, the first sleeve 11 and the shaft body 2 enclose a second sealing cavity 32. The filling gas is filled in the second sealing cavity 32, and the filling gas can drive the third sleeve 13 and the crown body 3 to move away from the second sleeve 12 along the axis of the shaft body 2.

[0066] The filling gas is placed in the second sealing cavity 32, and the second sealing cavity 32 is arranged in the first sealing cavity 31. Therefore, the filling gas is further sealed, and the reliability of elastic reset is further improved.

[0067] Optionally, a dynamic seal is provided between the outer peripheral wall of the third sleeve 13 and the inner peripheral wall of the first sleeve 11. A fourth sealing ring 8 is provided between the outer peripheral wall of the third sleeve 13 and the inner peripheral wall of the first sleeve 11. The fourth sealing ring 8 is made of a compressible elastic material such as rubber. On the one hand, the fourth sealing ring 8 can maintain the seal between the third sleeve 13 and the first sleeve 11, preventing the filling gas from leaking out and foreign objects from entering; on the other hand, after the crown body 3 is pressed, the fourth sealing ring 8 can provide partial resilience of the third sleeve 13 in the first sleeve 11 based on its own elastic deformation force.

[0068] To ensure that the fourth sealing ring 8 is always located between the third sleeve 13 and the first sleeve 11, a third sealing groove 131 is provided on the side wall of the third sleeve 13 and / or the first sleeve 11 to define the position of the fourth sealing ring 8. In this embodiment, the third sealing groove 131 is provided on the outer peripheral wall of the third sleeve 13, and the third sealing groove 131 is an annular groove.

[0069] Optionally, to ensure the sealing performance between the third sleeve 13 and the shaft body 2, a dynamic seal is provided between the outer peripheral wall of the third sleeve 13 and the shaft body 2. A fifth sealing ring 101 is provided between the third sleeve 13 and the shaft body 2. The fifth sealing ring 101 is made of a compressible elastic material such as rubber. A fourth sealing groove 132 is provided on the inner wall of the through hole of the third sleeve 13, and the fifth sealing ring 101 is installed in the fourth sealing groove 132 to define the position of the fifth sealing ring 101. To ensure the structural strength and stability of the third sleeve 13, the installation positions of the fourth sealing ring 8 and the fifth sealing ring 101 are at different positions in the direction perpendicular to the X-axis.

[0070] In this embodiment, the fifth sealing ring 101 is provided with an opening at one end close to the second sleeve 12 in the X-axis direction, and the opening is blocked by a detachable limiting sleeve plate 102. The limiting sleeve plate 102 is arranged as an annular thin plate structure to facilitate the disassembly and assembly of the fifth sealing ring 101.

[0071] A convex ring 7 is provided on either the top surface of the third sleeve 13 or the bottom surface of the crown body 3. The convex ring 7 abuts against the other of the top surface of the third sleeve 13 and the bottom surface of the crown body 3. The convex ring 7 is made of a compressible material such as rubber, a fluoropolymer elastomer, or silicone resin. The convex ring 7 is arranged to seal the gap between the top surface of the third sleeve 13 and the crown body 3, so as to further improve the sealing performance between the third sleeve 13 and the shaft body 2. In this embodiment, the convex ring 7 is arranged on the top surface of the third sleeve 13.

[0072] In this embodiment, the convex ring 7 is integrally formed with the third sleeve 13. In other embodiments, the convex ring 7 can also be fixed on the top surface of the third sleeve 13 by coating, physical vapor deposition, bonding, or other means.

[0073] In some embodiments, the third sleeve 13 is integrally formed with the shaft body 2 and / or the crown body 3, that is, the third sleeve 13 can be integrally formed on the peripheral wall of the shaft body 2, or can also be integrally formed on the inner side of the second wall of the crown body 3. In the embodiment where the shaft body 2 and the crown body 3 are integrally formed, the third sleeve 13, the shaft body 2, and the crown body 3 can also be integrally formed, so as to improve the sealing performance between the third sleeve 13 and the shaft body 2 and the crown body 3, and ensure that the filling gas can continuously provide resilience.

[0074] In some embodiments, as Figures 13-15 shown, an elastomer 9 is provided in the second sealing cavity 32. The elastomer 9 is arranged to drive the third sleeve 13 to move away from the first sleeve 11 along the axis of the shaft body 2, so as to further improve the resilience performance of the crown body 3.

[0075] The elastomer 9 is a spring. The first end of the spring abuts against the bottom wall of the first sleeve 11 of the fixing member 1, and the second end abuts against the bottom wall of the third sleeve 13. The spring is biased. To ensure the positioning of the spring, the spring is sleeved on the shaft body 2. Optionally, the first end of the spring is also sleeved on the annular pipe wall 113 of the first sleeve 11.

[0076] Optionally, the elastomer 9 can also be an elastic sheet or permanent magnets arranged with the same polarity facing each other. When the elastomer 9 is a pair or more pairs of permanent magnets arranged with the same polarity, one of each pair of permanent magnets is fixed on the bottom wall of the first sleeve 11, and the other is fixed on the bottom wall of the third sleeve 13. The permanent magnets can be fixed to the first sleeve 11 and the third sleeve 13 by clamping, bonding, or other means.

[0077] Due to the sealing arrangements between the first sleeve 11 and the crown body 3, between the first sleeve 11 and the third sleeve 13, and between the third sleeve 13 and the shaft body 2, it is largely ensured that foreign matters, such as water, sweat stains, or sediment, etc., cannot invade the second sealing cavity 32, thereby ensuring the performance and lifespan of the elastomer 9.

[0078] In some embodiments, an elastomer 9 is provided in the first sealing cavity 31. The elastomer 9 is configured to drive the crown body 3 to move away from the first sleeve 11 along the axis of the shaft body 2, so as to further improve the resilience performance of the crown body 3.

[0079] The elastomer 9 is a spring. The first end of the spring abuts against the bottom wall of the first sleeve 11 of the fixing member 1, and the second end abuts against the inner side surface of the second wall of the crown body 3. The spring is biased. To ensure the positioning of the spring, the spring is sleeved on the shaft body 2. Optionally, the first end of the spring is also sleeved on the annular tube wall 113 of the first sleeve 11.

[0080] Optionally, the elastomer 9 can also be an elastic sheet or permanent magnets arranged with the same polarity facing each other. When the elastomer 9 is one or more pairs of permanent magnets arranged with the same polarity, one of each pair of permanent magnets is fixed on the bottom wall of the first sleeve 11, and the other is fixed on the inner side surface of the second wall of the crown body 3. The permanent magnets can be fixed to the first sleeve 11 and the crown body 3 by means of clamping, bonding, etc.

[0081] Due to the sealing arrangement between the first sleeve 11 and the crown body 3, it is ensured to a great extent that foreign matters, such as water, sweat stains or sediment, etc. cannot invade the second sealing cavity 32, thereby ensuring the performance and service life of the elastomer 9.

Claims

1. A crown assembly of a smart watch, characterized in that, Comprising: A crown body (3); A fixing member (1), the first side of the fixing member (1) is mechanically coupled to the watch case (200) of the smart watch, and the second side of the fixing member (1) is hermetically connected to the crown body (3), so as to form a first sealed cavity (31) between the crown body (3) and the fixing member (1), and a filling gas is filled in the first sealed cavity (31); When receiving a user's press, the crown body (3) moves relative to the fixing member (1) in a first direction, thereby compressing the first sealed cavity (31); When the press is withdrawn, the first sealed cavity (31) recovers under the action of the filling gas, thereby driving the crown body (3) to move relative to the fixing member (1) in a second direction; Wherein, the first direction is opposite to the second direction.

2. The crown assembly according to claim 1, wherein The fixing member (1) includes a first sleeve (11), the first sleeve (11) is provided with a cavity (111), the rotating cover of the crown body (3) is arranged outside the first sleeve (11), the crown body (3) is hermetically connected to the outer peripheral wall of the first sleeve (11), and the crown body (3) covers the opening of the cavity (111) to form the first sealed cavity (31).

3. The crown assembly according to claim 2, wherein The crown assembly (100) further includes: A first sealing ring (4), sleeved on the outer periphery of the first sleeve (11), and the first sealing ring (4) is arranged to block the gap between the first sleeve (11) and the crown body (3).

4. The crown assembly according to claim 3, wherein, The cross-section of the first sealing ring (4) is arranged as a flat strip-shaped structure, and the two long sides oppositely arranged on the cross-section of the first sealing ring (4) respectively abut against the outer peripheral wall of the first sleeve (11) and the inner peripheral wall of the crown body (3).

5. The crown assembly according to claim 2, characterized in that, The fixing member (1) further includes a second sleeve (12), the second sleeve (12) is provided with a first relief hole (123), and the first relief hole (123) communicates with the cavity (111); the crown assembly (100) further includes a shaft body (2), and the shaft body (2) movably penetrates through the first relief hole (123) and the cavity (111) in the first direction, and the crown body (3) is connected to the shaft body (2).

6. The crown assembly according to claim 5, wherein, The crown assembly (100) further includes: A second sealing ring (5), sleeved on the outer periphery of the first section of the shaft body (2) in the first relief hole (123), and the second sealing ring (5) is arranged to block the gap between the shaft body (2) and the second sleeve (12).

7. The crown assembly according to claim 5, wherein The second sleeve (12) is embedded in a through hole of the watch case (200), and the crown assembly (100) further includes: A third sealing ring (6), sleeved on the outer periphery of the shaft body (2) where the second sleeve (12) is located, and the third sealing ring (6) is arranged to block the gap between the second sleeve (12) and the watch case (200).

8. The crown assembly according to claim 5, characterized in that, The fixing member (1) further includes a third sleeve (13). The third sleeve (13) is located in the first sealing cavity (31). The third sleeve (13) is movably sleeved on the shaft body (2), and the shaft body (2) is hermetically connected to the third sleeve (13). The outer peripheral portion of the third sleeve (13) is hermetically connected to the inner wall of the first sleeve (11). The third sleeve (13), the first sleeve (11) and the shaft body (2) enclose a second sealing cavity (32). The filling gas is filled in the second sealing cavity (32), and the filling gas can drive the third sleeve (13) and the crown body (3) to move away from the second sleeve (12) along the axis of the shaft body (2).

9. The crown assembly according to claim 8, wherein A convex ring (7) is provided on one of the top surface of the third sleeve (13) and the bottom surface of the crown body (3). The convex ring (7) abuts against the other of the top surface of the third sleeve (13) and the bottom surface of the crown body (3). The convex ring (7) is made of a compressible material, and the convex ring (7) is arranged to seal the gap between the top surface of the third sleeve (13) and the crown body (3).

10. The crown assembly according to claim 8, characterized in that, An elastic body (9) is provided in the second sealing cavity (32). The elastic body (9) is arranged to drive the third sleeve (13) to move away from the first sleeve (11) along the axis of the shaft body (2).

11. The crown assembly according to any one of claims 5 to 10, characterized in that, The first end of the shaft body (2) passes through the fixing member (1) from the first relief hole (123). The crown assembly (100) further includes a shaft retainer (10). The shaft retainer (10) is fixed to the outer peripheral wall of the first end of the shaft body (2). The shaft retainer (10) can abut against the end of the second sleeve (12) away from the first sleeve (11) to define the axial position of the shaft body (2).

12. An intelligent watch, characterized in that, It includes a watch case (200), a trigger switch (300) and the crown assembly (100) according to any one of claims 1 to 11. The trigger switch (300) is arranged in the watch case (200). The fixing member (1) is mechanically coupled to the watch case (200). When the crown body (3) moves in the first direction, the crown body (3) approaches and triggers the trigger switch (300).

13. The smart watch according to claim 12, characterized in that, When the crown body (3) moves in the second direction, the crown body (3) moves away from and stops triggering the trigger switch (300).

14. The smart watch according to claim 12, characterized in that, The watch case (200) is provided with a mounting hole; the fixing member (1) is connected to the mounting hole in at least one of the ways of plugging and sealing.

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