Box device and refrigeration equipment

Abstract

The application discloses a box device and a refrigeration equipment, wherein the box device comprises a box, a door body, a hinge assembly and a self-locking assembly. The self-locking assembly comprises an elastic member and a clamping member. During the process that the door body is rotated from an open state to a closed state relative to the box, the elastic member and the clamping member are separated from each other and then are in contact with each other. The elastic deformation of the elastic member under the action of the clamping member forms a lateral pushing force. The lateral pushing force generates a relative movement tendency along the radial direction of the sliding shaft between the sliding shaft and the groove wall of the sliding groove. The box device is further provided with a force decomposition mechanism. The force decomposition mechanism decomposes the lateral pushing force into a first force component and decomposes the gravity of the door body into a second force component. The first force component and the second force component are opposite to each other, so that the shaking and the jerk feeling of the door body during the closing process can be reduced or even avoided, the noise during the closing process of the door body is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigeration equipment, and specifically relates to a box device and refrigeration equipment. Background Art

[0002] For a box device comprising a door and a box, the door and the box are typically connected by a hinge, allowing the door to rotate relative to the box. Currently, the self-locking structure of the hinge between the box and the door typically utilizes a self-locking hook in combination with the hinge to achieve a self-locking effect. However, the existing self-locking hook and hinge assembly is prone to door shaking. Summary of the Invention

[0003] The present application provides a box device and a refrigeration device to solve the technical problem that the door body is prone to shaking when the existing self-locking hook and hinge assembly are combined.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: a box device, comprising: a box body, a storage space provided inside the box body, wherein the storage space has an opening; a door body, the door body being used to block the opening; a hinge assembly being arranged on the pivot side of the box body and pivotally connected to the box body and the door body; the hinge assembly comprising a first connecting member and a second connecting member, the first connecting member being arranged on one of the box body and the door body, and the second connecting member being arranged on the other; the first connecting member being provided with at least a sliding shaft, and the second connecting member being provided with at least a sliding groove, and when the door body is pivoted relative to the box body, the sliding shaft moves along the sliding groove The self-locking component comprises an elastic member and a snap-fit ​​member. When the door body rotates from an open state to a closed state relative to the box body, the elastic member and the snap-fit ​​member transition from being separated from each other to being in contact with each other. The elastic deformation of the elastic member under the action of the snap-fit ​​member forms a lateral driving force. The lateral driving force generates a relative movement trend along the radial direction of the sliding shaft between the sliding shaft and the groove wall of the sliding groove. The box body device is further provided with a force decomposition mechanism. The force decomposition mechanism decomposes the lateral driving force into a first force component and decomposes the gravity of the door body into a second force component. The first force component and the second force component are opposite to each other.

[0005] In order to solve the above technical problems, another technical solution adopted in the present application is: a refrigeration device, which adopts the above-mentioned box device.

[0006] The beneficial effects of the present application are as follows: by setting up a force decomposition mechanism, the force component of the door body's gravity can be used to balance the radial force component of the lateral driving force formed by the elastic deformation of the elastic member on the sliding shaft, thereby allowing the sliding shaft to move smoothly in the sliding groove, reducing or even avoiding the sliding shaft from shaking in the sliding groove. The door body of the box device of the present application rotates smoothly, avoiding the clearance fit problem between the sliding shaft and the sliding groove due to design and manufacturing tolerances, reducing or even avoiding the shaking and stuttering feeling of the door body during the door opening and closing process, reducing the door body opening and closing noise, and improving the user experience. The force decomposition mechanism and self-locking assembly of the present application have a simple structure, mature technology, easy manufacturing, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0008] Figure 1 This is a partial structural diagram of an embodiment of the box device of the present application. At this time, the box device is in a closed state;

[0009] Figure 2 This is a schematic diagram of a partial explosion structure of an embodiment of the box device of the present application;

[0010] Figure 3 This is a structural diagram of the second connecting member of an embodiment of the box device of the present application;

[0011] Figure 4 yes Figure 3 Enlarged view of part A;

[0012] Figure 5 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in an open state;

[0013] Figure 6 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in a closed state;

[0014] Figure 7 This is a structural diagram of a second connecting member of another embodiment of the box device of the present application;

[0015] Figure 8 This is a structural diagram of a first connecting member of another embodiment of the box device of the present application;

[0016] Figure 9 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in an open state;

[0017] Figure 10 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in a closed state;

[0018] Figure 11 This is a structural diagram of a second connecting member of another embodiment of the box device of the present application;

[0019] Figure 12 This is a schematic cross-sectional view of another embodiment of the box device of the present application;

[0020] Figure 13 yes Figure 12 Enlarged view of part B;

[0021] Figure 14 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in an open state;

[0022] Figure 15 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in a closed state;

[0023] Figure 16 This is a structural diagram of a second connecting member of another embodiment of the box device of the present application;

[0024] Figure 17 yes Figure 16 Schematic diagram of the enlarged structure of part C;

[0025] Figure 18 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in an open state;

[0026] Figure 19 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in a closed state;

[0027] Figure 20 It is a structural schematic diagram of the second connecting member of another embodiment of the box device of the present application. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] See also Figures 1 to 4 , Figure 1 This is a partial structural diagram of an embodiment of the box device of the present application. At this time, the box device is in a closed state; Figure 2 This is a schematic diagram of a partial explosion structure of an embodiment of the box device of the present application; Figure 3 This is a structural diagram of the second connecting member of an embodiment of the box device of the present application; Figure 4 yes Figure 3 Enlarged view of part A.

[0031] An embodiment of the present application provides a box device 100. The box device 100 includes a box body 110, a door body 120 and a hinge assembly 130. A storage space is formed inside the box body 110, and the storage space has an opening. The door body 120 is used to block or open. The hinge assembly 130 is arranged on the pivot side of the box body 110, and the hinge assembly 130 pivotally connects the door body 120 and the box body 110, that is, realizes a rotational connection between the box body 110 and the door body 120. The door body 120 can be opened or closed relative to the box body 110 under the action of the hinge assembly 130. The hinge assembly 130 includes a first connecting member 131 and a second connecting member 132. The first connecting member 131 is arranged on one of the box body 110 and the door body 120, and the second connecting member 132 is arranged on the other of the door body 120 and the box body 110. The first connecting member 131 is provided with at least a first sliding shaft 1311, and the second connecting member 132 is provided with at least a first sliding groove 1321. When the door body 120 pivots relative to the box body 110, the first sliding shaft 1311 moves along the first sliding groove 1321. Specifically, the first connecting member 131 is provided on the door body 120, and the second connecting member 132 is provided on the box body 110; or the first connecting member 131 is provided on the door body 120, and the second connecting member 132 is provided on the box body 110.

[0032] The first slide groove 1321 is provided with a first interference region 133, and the first slide shaft 1311 has an interference fit with the first slide groove 1321 in the first interference region 133. At least one side wall of the first slide groove 1321 in the first interference region 133 has a first elastic section 1331, and the first elastic section 1331 has a first maximum interference point 1332. When the door body 120 rotates toward the housing 110 until the first slide shaft 1311 passes the first maximum interference point 1332, the rebound force of the first elastic section 1331 causes the door body 120 to rotate toward the housing 110, thereby automatically closing the door body 120.

[0033] The box device 100 of the present application is provided with a first interference area 133 in the first slide groove 1321, and the first interference area 133 has a first elastic section 1331. When the first slide shaft 1311 squeezes and passes the first maximum interference point 1332 of the first elastic section 1331, the rebound force of the first elastic section 1331 drives the first slide shaft 1311 to continue to move along the first slide groove 1321, and the door body 120 continues to rotate toward the side of the box body 110. Even if the user's push is lost, the door body 120 can still close automatically. The box device 100 of the present application does not need to be provided with corresponding self-locking devices on the first connecting member 131 and the second connecting member 132, which simplifies the self-locking structure, reduces costs, and has a simpler and more beautiful appearance.

[0034] Specifically, in the process of the door body 120 rotating from the open state relative to the box body 110 to the closed state, the user pushes the door body 120, and the first sliding shaft 1311 moves along the first sliding groove 1321. When the door body 120 rotates relative to the box body 110 to a certain angle, the first sliding shaft 1311 squeezes the first elastic section 1331, and the first elastic section 1331 is deformed; when the first sliding shaft 1311 passes the first maximum interference point 1332, even if the user no longer pushes the door body 120, the rebound force generated by the deformation of the first elastic section 1331 can be converted into a self-locking force, and push the first sliding shaft 1311 to continue to move along the first sliding groove 1321. The door body 120 continues to rotate toward the box body 110 until the magnetic strips of the box body 110 and the door body 120 are attracted, and then the door body 120 is in a closed state. The user does not need to push the door body 120 completely to close it with the box body 110. Instead, after closing the door body 120 to a certain angle, the door body 120 can be automatically closed, ensuring the tightness of the closure of the door body 120 and the box body 110 and improving user convenience.

[0035] It should be noted that the position of the first interference region 133 within the first chute 1321 can be adjusted according to actual conditions. When the first slide shaft 1311 moves to the first highest interference point within the first chute 1321, the opening angle of the door body 120 relative to the box body 110 is a preset angle. The position of the first interference region 133 within the first chute 1321 can be adjusted according to the specific value of the preset angle, and the parameters of the first elastic section 1331 can be adjusted to achieve the preset angle. The rebound force of the first elastic section 1331 is used to cause the door body 120 to rotate toward the box body 110, thereby achieving automatic closing of the door body 120. The preset angle can be 10°-30°, such as 10°, 15°, 30°, etc., or 30°-60°, such as 30°, 45°, or 60°, etc. The preset angle can also be greater than 60° or less than 10°, and can be adjusted according to actual conditions.

[0036] In order to make the first sliding shaft 1311 move more smoothly within the first sliding groove 1321, in some embodiments, the first elastic section 1331 is configured such that, in a natural state, the width of the first sliding groove 1321 gradually decreases from both sides of the first maximum interference point 1332 toward the first maximum interference point 1332. As a result, when the first sliding shaft 1311 moves within the first sliding groove 1321, the width of the first sliding groove 1321 gradually changes, and the first sliding shaft 1311 can gradually compress or release the first elastic section 1331. This allows the first sliding shaft 1311 to move smoothly within the first sliding groove 1321, avoiding any jamming and ensuring smooth opening and closing of the door body 120. It should be noted that the direction perpendicular to the direction of movement of the first sliding shaft 1311 within the first sliding groove 1321 is defined as the first direction, and the distance between the intersection of the first direction and the groove walls on both sides of the first sliding groove 1321 is defined as the width of the first sliding groove 1321.

[0037] Furthermore, to prevent the door from getting stuck when closing and to generate a strong self-locking force, the first elastic section 1331 includes a first front interference section 1333 and a first rear interference section 1334 located on either side of the first maximum interference point 1332. When the door body 120 rotates toward the housing 110, the first sliding shaft 1311 passes through the first front interference section 1333 and the first rear interference section 1334 in sequence. The slope of the first rear interference section 1334 is greater than the slope of the first front interference section 1333. The slope of the first front interference section 1333 is relatively gentle, which facilitates the door body 120 to gradually squeeze the first front interference section 1333. When the first sliding shaft 1311 passes through the first front interference section 1333, the door body 120 closes smoothly, preventing the door from getting stuck when closing and improving the door closing experience. The slope of the first rear interference section 1334 is relatively steep. After the first sliding shaft 1311 passes the first maximum interference point 13321332, the rebound process of the first rear interference section 1334 is relatively fast, which can form a larger self-locking force to push the first sliding shaft 1311 to move along the first sliding groove 1321. The rebound force of the first rear interference section 1334 makes the door body 120 rotate toward the box body 110 side, and the door body 120 can be automatically closed.

[0038] In some embodiments, the first elastic section 1331 is an elastic layer attached to the wall of the first chute 1321. By providing the first elastic section 1331 on the wall of the first chute 1321, after the door body 120 rotates toward the housing 110 until the first slide shaft 1311 passes the first maximum interference point 1332, the rebound force of the first elastic section 1331 causes the door body 120 to rotate toward the housing 110, thereby achieving automatic closing of the door body 120. The first elastic section 1331 can be made of a material with resilience, such as polyformaldehyde. In other embodiments, the first elastic section 1331 is formed by the wall of the first chute 1321 with resilience. The wall of the first chute 1321 is made of a material with resilience, such as polyformaldehyde. Furthermore, the second connecting member 132 is formed of a polyformaldehyde material, such as polyformaldehyde.

[0039] Specifically, first elastic sections 1331 are provided on both sides of the first sliding groove 1321, corresponding to the first interference region 133. When the first sliding shaft 1311 moves along the first sliding groove 1321, the first sliding shaft 1311 squeezes the first elastic sections 1331 on both sides. The rebound force of the first elastic sections 1331 on both sides causes the door body 120 to rotate toward the housing 110. The rebound force of the first elastic sections 1331 on both sides of the groove wall effectively pushes the first sliding shaft 1311, causing the door body 120 to rotate toward the housing 110.

[0040] In some embodiments, a second sliding shaft 1312 is further provided on one of the first connecting member 131 and the second connecting member 132, and a second sliding groove 1322 is further provided on the other of the first connecting member 131 and the second connecting member 132. When the door body 120 pivots relative to the box body 110, the second sliding shaft 1312 moves along the second sliding groove 1322, and the second sliding groove 1322 is provided with a second interference area 134. The second sliding shaft 1312 is interference-fitted with the second sliding groove 1322 in the second interference area 134. At least one side groove wall of the second sliding groove 1322 in the second interference area 134 has a second elastic section 1341, and the second elastic section 1341 has a second maximum interference point 1342. After the door body 120 rotates toward the box body 110 until the second sliding shaft 1312 passes the second maximum interference point 1342, the rebound force of the second elastic section 1341 causes the door body 120 to rotate toward the box body 110 side.

[0041] The box device 100 of the present application may adopt a single-axis or double-axis hinge assembly 130 , and may also adopt a three-axis or more hinge assembly 130 .

[0042] By providing a second interference region 134 within the second chute 1322, and the second interference region 134 having a second elastic segment 1341, when the second slide shaft 1312 squeezes and passes the second maximum interference point 1342 of the second elastic segment 1341, the rebound force of the second elastic segment 1341 drives the second slide shaft 1312 to continue moving along the second chute 1322, and the door body 120 continues to rotate toward the side of the box body 110. Even if the user's push is lost, the door body 120 can still automatically close. The box body device 100 of the present application, through the rebound force of the first elastic segment 1331 and the second elastic segment 1341, does not need to provide corresponding self-locking devices on the first connecting member 131 and the second connecting member 132, thereby simplifying the self-locking structure, reducing costs, and having a simpler and more beautiful appearance.

[0043] When the door body 120 rotates from the open state to the closed state relative to the box body 110, the user pushes the door body 120, and the second sliding shaft 1312 moves along the second sliding groove 1322. When the door body 120 rotates relative to the box body 110 to a certain angle, the second sliding shaft 1312 squeezes the second elastic section 1341, and the second elastic section 1341 is deformed; when the second sliding shaft 1312 passes the second maximum interference point 1342, even if the user no longer pushes the door body 120, the rebound force generated by the deformation of the second elastic section 1341 can be converted into a self-locking force, and push the second sliding shaft 1312 to continue to move along the second sliding groove 1322. The door body 120 continues to rotate toward the box body 110 until the magnetic strips of the box body 110 and the door body 120 are attracted, and then the door body 120 is in a closed state. The user does not need to push the door body 120 completely to close it with the box body 110. Instead, after closing the door body 120 to a certain angle, the door body 120 can be automatically closed, ensuring the tightness of the closure of the door body 120 and the box body 110 and improving user convenience.

[0044] Specifically, the second sliding shaft 1312 can be provided on the first connecting member 131, and the corresponding second sliding groove 1322 can be provided on the second connecting member 132, that is, the first sliding shaft 1311 and the second sliding shaft 1312 are provided on the first connecting member 131, and the first sliding groove 1321 and the second sliding groove 1322 are provided on the second connecting member 132. Alternatively, the second sliding groove 1322 is provided on the first connecting member 131, and the corresponding second sliding shaft 1312 is provided on the second connecting member 132, that is, the first sliding shaft 1311 and the second sliding groove 1322 are provided on the first connecting member 131, and the second sliding shaft 1312 and the first sliding groove 1321 are provided on the second connecting member 132.

[0045] In order to make the second slide shaft 1312 move more smoothly in the second slide groove 1322, in some embodiments, the second elastic section 1341 is configured so that in a natural state, the width of the second slide groove 1322 gradually decreases from both sides of the second maximum interference point 1342 to the second maximum interference point 1342, so that when the second slide shaft 1312 moves in the second slide groove 1322, the width of the second slide groove 1322 gradually changes, and the second slide shaft 1312 can gradually compress or gradually release the second elastic section 1341, so that the second slide shaft 1312 moves smoothly in the second slide groove 1322 and avoids jamming. It should be noted that the direction perpendicular to the movement direction of the second slide shaft 1312 in the second slide groove 1322 is the second direction, and the distance between the intersection of the second direction and the groove walls on both sides of the second slide groove 1322 is the width of the second slide groove 1322.

[0046] In some embodiments, the second elastic section 1341 is an elastic layer attached to the wall of the second chute 1322. By providing the second elastic section 1341 on the wall of the second chute 1322, after the door body 120 rotates toward the housing 110 until the second slide shaft 1312 passes the second maximum interference point 1342, the rebound force of the second elastic section 1341 causes the door body 120 to rotate toward the housing 110, thereby achieving automatic closing of the door body 120. The second elastic section 1341 can be made of a material with resilience, such as polyformaldehyde. In other embodiments, the first elastic section 1331 is formed by the wall of the first chute 1321 with resilience. The wall of the second chute 1322 is made of a material with resilience, such as polyformaldehyde. Furthermore, the connector where the second chute 1322 is located is made of a polyformaldehyde material, such as polyformaldehyde.

[0047] Specifically, the second sliding groove 1322 has second elastic sections 1341 disposed on both sides of the groove wall, corresponding to the second interference region 134. When the second sliding shaft 1312 moves along the second sliding groove 1322, it squeezes the second elastic sections 1341 on both sides. The rebound force of the second elastic sections 1341 on both sides causes the door body 120 to rotate toward the housing 110. The rebound force of the second elastic sections 1341 on both sides of the groove wall effectively pushes the second sliding shaft 1312, causing the door body 120 to rotate toward the housing 110.

[0048] Furthermore, when the door body 120 rotates relative to the box body 110, the first sliding shaft 1311 and the second sliding shaft 1312 enter and leave the first interference area 133 and the second interference area 134 respectively at the same time, so that the force of the first interference area 133 on the first sliding shaft 1311 and the force of the second interference area 134 on the second sliding shaft 1312 can simultaneously form a combined force, and the door body 120 rotates more smoothly, avoiding jamming when opening and closing the door.

[0049] Furthermore, when the door body 120 rotates relative to the box body 110, the first sliding shaft 1311 and the second sliding shaft 1312 pass through the first maximum interference point 1332 and the second maximum interference point 1342 respectively at the same time, so that the maximum rebound force of the first elastic section 1331 on the first sliding shaft 1311 and the maximum rebound force of the second elastic section 1341 on the second sliding shaft 1312 can simultaneously form a combined force, and make the door body 120 rotate toward the box body 110 side, so that the door body 120 rotates more smoothly and the door body 120 can be better self-closed.

[0050] It should be noted that the first interference region 133 in the present application may function as a self-locking component in the following embodiments, and other structures in the following embodiments may be adaptively incorporated into the present application.

[0051] See also Figures 5 to 8 , Figure 5This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in an open state; Figure 6 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in a closed state; Figure 7 This is a structural diagram of a second connecting member of another embodiment of the box device of the present application; Figure 8 It is a structural schematic diagram of the first connecting member of another embodiment of the box device of the present application.

[0052] One embodiment of the present application provides a box 210 device 200. The box 210 device 200 includes a box 210, a door 220, a hinge assembly 230, and a self-locking assembly 240. A storage space is formed inside the box 210, and the storage space has an opening. The door 220 is used to block or open. The hinge assembly 230 is arranged on the pivot side of the box 210, and the hinge assembly 230 pivotally connects the door 220 and the box 210, that is, realizes a rotational connection between the box 210 and the door 220. The door 220 can be opened or closed relative to the box 210 under the action of the hinge assembly 230. The self-locking assembly 240 includes an elastic member 241 and a clamping member 242. The elastic member 241 is provided on one of the box 210 and the door 220, and the clamping member 242 is provided on the other of the box 210 and the door 220. The clamping member 242 has a most convex point 2421 and a locking position 2422. The most convex point 2421 is the position on the clamping member 242 where the elastic deformation of the elastic member 241 is the largest. When the door body 220 rotates from an open state relative to the box body 210 to a closed state, the elastic member 241 and the clamping member 242 contact each other, and after the elastic member 241 passes over the most convex point 2421 of the clamping member 242, it enters the locking position 2422, thereby locking the door body 220 in the closed state.

[0053] There is a continuous and smooth transition between the most convex point 2421 and the locking position 2422. As the elastic member 241 moves from the most convex point 2421 to the locking position 2422, the deformation of the elastic member 241 gradually recovers, and the rebound force of the elastic member 241 is gradually released, so that the door body 220 gradually rotates toward the box body 210 due to the rebound force, thereby achieving automatic closing of the door body 220. The deformation, rebound and release process of the elastic member 241 of the box body 210 device 200 of the present application is smooth, without obvious sudden force change inflection points, thereby avoiding shaking and jerking of the door body 220 during the closing process, reducing noise during the closing process of the door body 220, and improving the user experience.

[0054] Specifically, in the process of the door body 220 rotating from the open state relative to the box body 210 to the closed state, the user pushes the door body 220. When the door body 220 rotates to a certain angle relative to the box body 210, the clamping member 242 contacts and squeezes the elastic member 241. After the elastic member 241 passes the most convex point 2421 of the clamping member 242, the rebound force generated by the deformation of the elastic member 241 can be converted into a self-locking force that pushes the door body 220 to continue to rotate toward the box body 210. Due to the continuous and smooth transition between the most convex point 2421 and the locking position 2422, the rebound force of the elastic member 241 is gradually released, so that the deformation of the elastic member 241 gradually recovers, and the door body 220 gradually rotates toward the box body 210 under the rebound force. After the door body 220 continues to rotate toward the box body 210 until the magnetic strips of the box body 210 and the door body 220 are attracted, the door body 220 is in a closed state. The user does not need to push the door body 220 completely to close it with the box body 210. Instead, after closing the door body 220 to a certain angle, the door body 220 can be automatically closed, ensuring the tightness of the closure of the door body 220 and the box body 210 and improving user convenience.

[0055] The elastic member 241 may be disposed on the door body 220 , and the clamping member 242 may be disposed on the box body 210 . Alternatively, the elastic member 241 may be disposed on the box body 210 , and the clamping member 242 may be disposed on the door body 220 .

[0056] It should be noted that the location of the most convex point 2421 of the clip 242 can be adjusted according to actual conditions. When the elastic member 241 passes through the most convex point 2421 of the clip 242, the opening angle of the door body 220 relative to the box body 210 is a preset angle. The location of the most convex point 2421 of the clip 242 can be adjusted according to the specific value of the preset angle, and the parameters of the elastic member 241 can be adjusted to achieve the preset angle. The rebound force of the first elastic section is used to cause the door body 220 to rotate toward the box body 210, thereby achieving automatic closing of the door body 220. The preset angle can be 10°-30°, such as 10°, 15°, 30°, etc. The preset angle can also be greater than 30° or less than 10°, and can be adjusted according to actual conditions.

[0057] In some embodiments, the elastic member 241 is arranged in a hook shape and has a fixed end 2411 and a free end 2412. In the direction from the fixed end 2411 to the free end 2412, the elastic member 241 first extends away from the clamping member 242 and then extends toward the clamping member 242. The free end 2412 is used to contact the clamping member 242.

[0058] In some embodiments, the latching member 242 includes a first contact segment 2423 and a second contact segment 2424 located on either side of the most convex point 2421. When the door 220 rotates from an open position relative to the housing 210 to a closed position, the elastic member 241 sequentially contacts the first contact segment 2423 and the second contact segment 2424. The second contact segment 2424 connects the most convex point 2421 and the locking position 2422, forming a continuous and smooth transition.

[0059] During the process of the door body 220 rotating from the open state to the box body 210 side to the closed state, the first contact section 2423 first contacts the elastic member 241, and the first contact section 2423 contacts and squeezes the elastic member 241; after the elastic member 241 passes the most convex point 2421 of the clamping member 242, the second contact section 2424 contacts the elastic member 241, and the rebound force generated by the deformation of the elastic member 241 can be converted into a self-locking force that pushes the door body 220 to continue to rotate toward the box body 210. Since the second contact section 2424 has a continuous and smooth transition, the deformation of the elastic member 241 gradually recovers, so that the rebound force of the elastic member 241 is gradually released, so that the door body 220 is gradually rotated toward the box body 210 side under the rebound force until the elastic member 241 contacts the locking position 2422, and the door body 220 is in a closed state.

[0060] Specifically, the second contact section 2424 is configured in an arc shape that protrudes outward from the clamping member 242. During the rotation process of the door body 220, after the elastic member 241 passes over the most convex point 2421 of the clamping member 242, the elastic member 241 gradually moves along the most convex point 2421 of the second contact section 2424 to the locking position 2422 because the second contact section 2424 is configured in an arc shape that protrudes outward from the clamping member 242. The elastic member 241 gradually recovers its deformation, and the rebound force of the elastic member 241 is gradually released. Under the rebound force, the door body 220 gradually rotates toward the box body 210 until it is closed. The door body 220 rotates smoothly, avoiding shaking and jerking during the closing process of the door body 220, reducing the closing noise of the door body 220, and improving the user experience.

[0061] Furthermore, the first contact section 2423 presents a continuous smooth transition. When the door body 220 is closed, the elastic member 241 contacts the first contact section 2423 , and the elastic member 241 deforms smoothly, thereby preventing shaking and jamming of the door body 220 during rotation.

[0062] In some embodiments, the second contact segment 2424 is in an arc shape, and the arc radius of the second contact segment 2424 is greater than or equal to 5 mm, such as 5 mm, 8 mm, 10 mm, or 14 mm. The arc length of the second contact segment 2424 is greater than or equal to 11 mm, such as 11 mm, 15 mm, or 18 mm. During the process of the door body 220 rotating from the open state to the closed state, the second contact segment 2424 can gradually reduce the squeezing of the elastic member 241, and the elastic member 241 gradually recovers its deformation. The rebound force of the elastic member 241 is gradually released, and the door body 220 gradually rotates toward the side of the box body 210 under the rebound force until it is closed. The door body 220 rotates smoothly, avoiding shaking and jerking during the closing process of the door body 220, reducing the closing noise of the door body 220, and improving the user experience. In other embodiments, the second contact segment 2424 can be formed into a smooth streamlined shape by a plurality of arcs with different radii. As long as the elastic member 241 gradually recovers its deformation and releases its rebound force during the process of entering the locking position 2422 from the most convex point 2421, the elastic member 241 gradually recovers its deformation.

[0063] During the contact between the elastic member 241 and the second contact section 2424, the door body 220 rotates relative to the housing 210 at an angle greater than 10°, such as 10°, 14°, 16°, or 20°. During the contact between the elastic member 241 and the second contact section 2424, the door body 220 rotates at a sufficient angle relative to the housing 210, allowing the elastic member 241 to gradually recover its deformation. The resilience of the elastic member 241 is gradually released, and the door body 220 is gradually rotated toward the housing 210 due to the resilience until it is closed. The door body 220 rotates smoothly, avoiding shaking and jerking during the closing process, reducing closing noise, and improving user experience.

[0064] In some embodiments, the hinge assembly 230 includes a first connector 231 and a second connector 232. The first connector 231 is disposed on one of the housing 210 and the door 220, and the second connector 232 is disposed on the other. Specifically, the first connector 231 is disposed on the door 220, and the second connector 232 is disposed on the housing 210; or the first connector 231 is disposed on the door 220, and the second connector 232 is disposed on the housing 210.

[0065] The first connecting member 231 and the second connecting member 232 are respectively provided with a first sliding shaft 2311 and a first sliding groove 2321 that cooperate with each other, and a second sliding shaft 2312 and a second sliding groove 2322 that cooperate with each other. When the door body 220 pivots relative to the box body 210, the first sliding shaft 2311 moves along the first sliding groove 2321, and the second sliding shaft 2312 moves along the second sliding groove 2322. Specifically, the first sliding shaft 2311 and the second sliding shaft 2312 can be provided on the first connecting member 231, and the corresponding first sliding groove 2321 and the second sliding groove 2322 can be provided on the second connecting member 232. Alternatively, the first sliding groove 2321 and the second sliding groove 2322 are provided on the first connecting member 231, and the corresponding first sliding shaft 2311 and the second sliding shaft 2312 are provided on the second connecting member 232. Alternatively, one of the first sliding shaft 2311 and the second sliding shaft 2312 is set on the first connecting member 231, and the other is set on the second connecting member 232, corresponding to one of the first sliding groove 2321 and the second sliding groove 2322 being set on the second connecting member 232, and the other being set on the first connecting member 231.

[0066] Because the sliding groove and the sliding shaft of the biaxial hinge do not move in a circular motion, there is clearance between the sliding shaft and the sliding groove. The single-side distance between the first sliding shaft 2311 and the groove wall of the first sliding groove 2321, and the single-side distance between the second sliding shaft 2312 and the groove wall of the second sliding groove 2322, is less than or equal to 0.15 mm. By reducing the clearance between the sliding shaft and the sliding groove, the potential shaking of the sliding shaft during movement along the sliding groove can be reduced.

[0067] During the contact between the elastic member 241 and the second contact section 2424, the first slide shaft 2311 travels a distance greater than or equal to 6 mm within the first slide groove 2321, and the second slide shaft 2312 travels a distance greater than or equal to 5 mm within the second slide groove 2322. The first slide shaft 2311 and the second slide shaft 2312 move a sufficient distance within the first slide groove 2321 and the second slide groove 2322, respectively, allowing the elastic member 241 to gradually recover its deformation. The resilience of the elastic member 241 is gradually released, and the door body 220 gradually rotates toward the housing 210 due to the resilience until it is closed. The door body 220 rotates smoothly, avoiding shaking and jerking during the closing process, reducing closing noise, and improving the user experience.

[0068] Furthermore, the elastic member 241 and the clamping member 242 are respectively arranged on the first connecting member 231 and the second connecting member 232. The arc radius of the second contact segment 2424 is greater than or equal to 14 mm, such as 14 mm, 16 mm or 18 mm. Since the arc radius of the second contact segment 2424 is greater than or equal to 14 mm. In the process of the door body 220 rotating from the open state to the closed state, the second contact segment 2424 can gradually reduce the squeezing of the elastic member 241, the elastic member 241 gradually recovers its deformation, the rebound force of the elastic member 241 is gradually released, and the door body 220 is gradually rotated toward the box body 210 side by the rebound force until it is closed. The door body 220 rotates smoothly, avoiding shaking and frustration during the closing process of the door body 220, reducing the closing noise of the door body 220, and improving the user experience.

[0069] In some embodiments, when the elastic member 241 contacts the first contact segment 2423, the angle between the tangent line of the first contact segment 2423 at the contact point formed by the elastic member 241 and the tangent line of the elastic member 241 at the contact point is less than or equal to 10°, for example, 10°, 8°, or 5°. Therefore, when the door body 220 rotates from an open state to a closed state, when the elastic member 241 begins to contact the first contact segment 2423, the first contact segment 2423 can gradually compress the elastic member 241, thereby preventing the elastic member 241 from suddenly deforming due to force when it begins to contact the engaging member 242, causing the door body 220 to shake. Moreover, during the process of the door body 220 rotating from the closed state to the open state, when the elastic member 241 is in contact with the first contact section 2423 and then separated from the first contact section 2423, the elastic member 241 can gradually release the rebound force, and the door body 220 rotates smoothly, avoiding shaking and jerking during the opening process of the door body 220, reducing the rotation noise of the door body 220, and improving the user experience.

[0070] See also Figures 9 to 13 , Figure 9 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in an open state; Figure 10 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in a closed state; Figure 11 This is a structural diagram of a second connecting member of another embodiment of the box device of the present application;

[0071] Figure 12 This is a schematic cross-sectional view of another embodiment of the box device of the present application; Figure 13 yes Figure 12 Magnified view of part B.

[0072] Another embodiment of the present application provides a box device 300. The box device 300 includes a box body 310, a door body 320, a hinge assembly 330, and a self-locking assembly 340. A storage space is formed inside the box body 310, and the storage space has an opening. The door body 320 is used to block or open the opening. The hinge assembly 330 is arranged on the pivot side of the box body 310. The hinge assembly 330 pivotally connects the door body 320 and the box body 310, thereby realizing a rotational connection between the box body 310 and the door body 320. The door body 320 can be opened or closed relative to the box body 310 under the action of the hinge assembly 330. The hinge assembly 330 includes a first connecting member 331 and a second connecting member 332. The first connecting member 331 is arranged on one of the box body 310 and the door body 320, and the second connecting member 332 is arranged on the other of the door body 320 and the box body 310. The first connecting member 331 is provided with at least a sliding shaft 3310, and the second connecting member 332 is provided with at least a sliding groove 3320. When the door body 320 pivots relative to the housing 310, the sliding shaft 3310 moves along the sliding groove 3320. Specifically, the first connecting member 331 is provided on the door body 320, and the second connecting member 332 is provided on the housing 310; alternatively, the first connecting member 331 is provided on the door body 320, and the second connecting member 332 is provided on the housing 310. The self-locking assembly 340 includes an elastic member 341 and a clamping member 342. When the door body 320 pivots from an open state relative to the housing 310 to a closed state, the elastic member 341 and the clamping member 342 transition from being separated to being in contact with each other.

[0073] When the engaging member 342 contacts and compresses the elastic member 341, the elastic deformation of the elastic member 341 under the action of the engaging member 342 generates a rebound force, which propels the sliding shaft 3310 along the sliding groove 3320. This rebound force, in turn, transforms into a self-locking force that propels the door body 320 to continue rotating toward the housing 310. The door body 320 gradually rotates toward the housing 310 until it is closed. Simultaneously, the elastic deformation of the elastic member 341 under the action of the engaging member 342 generates a lateral force. As the sliding shaft 3310 moves within the sliding groove 3320, there is a certain clearance between the sliding shaft 3310 and the groove wall 3320. This lateral force generates a relative motion along the radial direction of the sliding shaft 3310, causing the sliding shaft 3310 to wobble within the sliding groove 3320, which in turn causes the door body 320 to wobble and stutter during rotation. The box device 300 is further provided with a force decomposition mechanism 350, which decomposes the lateral driving force into a first force component and decomposes the gravity of the door body 320 into a second force component, wherein the first force component and the second force component are opposite to each other. By providing the force decomposition mechanism 350, the force component of the gravity of the door body 320 can be used to balance the radial force component of the lateral driving force formed by the elastic deformation of the elastic member 341 on the sliding shaft 3310, thereby allowing the sliding shaft 3310 to move smoothly in the sliding groove 3320, reducing or even avoiding the shaking of the sliding shaft 3310 in the sliding groove 3320. The door body 320 of the box device 300 of the present application rotates smoothly, avoiding the clearance fit problem caused by the design and manufacturing tolerances of the sliding shaft 3310 and the sliding groove 3320, reducing or even avoiding the shaking and frustration of the door body 320 during the opening and closing process, reducing the opening and closing noise of the door body 320, and improving the user experience. The force decomposition mechanism 350 and the self-locking assembly 340 of the present application have a simple structure, mature technology, easy manufacturing, and low cost.

[0074] It should be noted that the clamping member 342 squeezes and compresses the elastic member 341, and a part of the rebound force generated by the elastic deformation of the elastic member 341 forms a lateral driving force to generate a relative movement trend along the radial direction of the sliding shaft 3310 between the sliding shaft 3310 and the groove wall of the sliding groove 3320, and the other part of the rebound force generated by the elastic deformation of the elastic member 341 can push the sliding shaft 3310 to move along the sliding groove 3320.

[0075] In some embodiments, the force decomposition mechanism 350 includes a first contact portion 351 disposed on the sliding shaft 3310 and a second contact portion 352 disposed on the groove wall of the sliding groove 3320. The first contact portion 351 and the second contact portion 352 are in contact with each other, and at least one of the first contact portion 351 and the second contact portion 352 is inclined relative to the radial cross-section of the sliding shaft 3310, thereby decomposing the lateral pushing force and the weight of the door body 320 into a first force component and a second force component along the inclination direction of at least one of the first contact portion 351 and the second contact portion 352 relative to the radial cross-section of the sliding shaft 3310. The second force component decomposed from the gravity of the door body 320 can balance the first force component decomposed from the lateral pushing force of the elastic part 341, so that the sliding shaft 3310 can move smoothly in the sliding groove 3320, reducing or even avoiding the shaking of the sliding shaft 3310 in the sliding groove 3320, thereby making the door body 320 rotate smoothly, reducing or even avoiding the shaking and frustration during the closing process of the door body 320, reducing the noise of opening and closing the door body 320, and improving the user experience.

[0076] Specifically, the first contact portion 351 is located at one end of the sliding shaft 3310 close to the first connecting member 331, and the second contact portion 352 is located at the notch of the sliding groove 3320; or, the first contact portion 351 is located at one end of the sliding shaft 3310 away from the first connecting member 331, and the second contact portion 352 is located at the bottom of the sliding groove 3320.

[0077] In some embodiments, the slide groove 3320 includes a first slide groove 3321 and a second slide groove 3322, and the slide shaft 3310 includes a first slide shaft 3311 and a second slide shaft 3312. The first contact portion 351 is disposed on at least one of the first slide shaft 3311 and the second slide shaft 3312, and the second contact portion 352 is correspondingly disposed on at least one of the first slide groove 3321 and the second slide groove 3322. Specifically, the first contact portion 351 and the second contact portion 352 are disposed on the first slide shaft 3311 and the first slide groove 3321; alternatively, the first contact portion 351 and the second contact portion 352 are disposed on the second slide shaft 3312 and the second slide groove 3322; alternatively, the first contact portion 351 is disposed in both the first slide shaft 3311 and the second slide shaft 3312, and correspondingly, the second contact portion 352 is disposed in both the first slide groove 3321 and the second slide groove 3322.

[0078] In order to increase the contact area between the first contact portion 351 and the second contact portion 352 and reduce wear, the first contact portion 351 and the second contact portion 352 are inclined surfaces that are inclined relative to the radial cross-section of the sliding shaft 3310 and have the same inclination angle, so that the first contact portion 351 and the second contact portion 352 are in surface contact. The contact area between the first contact portion 351 and the second contact portion 352 is increased, which can reduce the wear between the first contact portion 351 and the second contact portion 352 when the sliding shaft 3310 moves in the sliding groove 3320, thereby improving the smoothness of movement of the door body 320 and increasing the service life of the box device 300.

[0079] Of course, in other embodiments, the first contact portion 351 and the second contact portion 352 may be inclined surfaces inclined relative to the radial cross-section of the sliding shaft 3310 at different angles, with the first contact portion 351 and the second contact portion 352 in line contact. Alternatively, the first contact portion 351 and the second contact portion 352 may be curved surfaces inclined relative to the radial cross-section of the sliding shaft 3310 and conforming to their shapes, with the first contact portion 351 and the second contact portion 352 in surface contact. Alternatively, the first contact portion 351 and the second contact portion may be curved surfaces inclined relative to the radial cross-section of the sliding shaft 3310 and not conforming to their shapes, with the first contact portion 351 and the second contact portion 352 in line contact. Alternatively, one of the first contact portion 351 and the second contact portion 352 may be an inclined or curved surface inclined relative to the radial cross-section of the sliding shaft 3310, with the other having a right angle, with the first contact portion 351 and the second contact portion 352 in line contact. Various setting forms of the first contact part 351 and the second contact part 352 can decompose the lateral pushing force and the gravity of the door body 320 into a first force component and a second force component along the inclination direction of at least one of the first contact part 351 and the second contact part 352 relative to the radial cross-section of the sliding shaft 3310. The second force component can balance the first force component, so that the sliding shaft 3310 can move smoothly in the sliding groove 3320, reduce or even avoid the shaking of the sliding shaft 3310 in the sliding groove 3320, and thus make the door body 320 rotate smoothly, reduce or even avoid the shaking and frustration of the door body 320 during the opening and closing process, reduce the opening and closing noise of the door body 320, and improve the user experience.

[0080] When the first contact portion 351 and the second contact portion 352 are inclined surfaces that are inclined relative to the radial cross-section of the sliding shaft 3310 and have the same inclination angle, in order to increase the second force component decomposed by gravity relative to the inclination direction of the radial cross-section of the sliding shaft 3310 and prevent the door body 320 from shaking in the vertical direction, the inclination angle of the first contact portion 351 and the second contact portion 352 relative to the radial cross-section of the sliding shaft 3310 is greater than or equal to 45° and less than 90°, such as 45°, 60°, or 70°, etc., thereby increasing the second force component decomposed by gravity relative to the inclination direction of the radial cross-section of the sliding shaft 3310, so that the second component force is greater than or equal to the first component force, thereby preventing the door body 320 from shaking in the vertical direction.

[0081] In some embodiments, the width of the orthographic projection of the first contact portion 351 and the second contact portion 352 on the radial cross section of the sliding shaft 3310 is greater than or equal to 0.6 mm, such as 0.6 mm, 0.75 mm, or 1 mm. By increasing the width of the orthographic projection of the first contact portion 351 and the second contact portion 352 on the radial cross section of the sliding shaft 3310, the contact area between the first contact portion 351 and the second contact portion 352 can be increased, the pressure between the first contact portion 351 and the second contact portion 352 can be reduced, the wear between the first contact portion 351 and the second contact portion 352 can be reduced, the smoothness of the movement of the door body 320 can be improved, and the service life of the box device 300 can be increased.

[0082] In some embodiments, the height of the orthographic projection of the first contact portion 351 on the axial cross-section of the sliding shaft 3310 is greater than the height of the orthographic projection of the second contact portion 352 on the axial cross-section of the sliding shaft 3310. In this case, there is a height difference between the first contact portion 351 and the second contact portion 352, and the surface area of ​​the first contact portion 351 is larger than the second contact surface area. When the sliding shaft 3310 and the slide groove 3320 move relative to each other in the axial direction of the sliding shaft 3310, the first contact portion 351 and the second contact portion 352 can always maintain contact, so that the lateral pushing force and the weight of the door body 320 are decomposed into a first force component and a second force component along the inclination direction of at least one of the first contact portion 351 and the second contact portion 352 relative to the radial cross-section of the sliding shaft 3310. Thus, the second force component decomposed from the gravity of the door body 320 can balance the first force component decomposed from the lateral pushing force of the elastic member 341, thereby allowing the sliding shaft 3310 to move smoothly within the sliding groove 3320, reducing or even preventing the sliding shaft 3310 from shaking within the sliding groove 3320, thereby allowing the door body 320 to rotate smoothly, reducing or even preventing shaking and jerking during the opening and closing of the door body 320, reducing the opening and closing noise of the door body 320, and improving the user experience. In addition, there is a height difference between the first contact portion 351 and the second contact portion 352, with the first contact portion 351 having a larger surface area than the second contact portion, which can improve the adaptability of the force decomposition mechanism 350 and offset certain manufacturing and installation errors.

[0083] When the elastic member 341 and the clamping member 342 are separated from each other, the outer peripheral wall of the sliding shaft 3310 and the groove wall of the sliding groove 3320 have a radial gap A along the radial direction of the sliding shaft 3310, and the contact area between the first contact portion 351 and the second contact portion 352 has a movable margin B along the axial direction of the sliding shaft 3310. The movable margin is greater than or equal to a first preset value, and the first preset value is the product of the tangent value tanβ of the inclination angle β of the first contact portion 351 and the radial gap A, that is, B≥A*tanβ. Therefore, the sliding shaft 3310 and the sliding groove 3320 can be completely contacted through the first contact part 351 and the second contact part 352, and the gravity of the door body 320 can completely act on the first contact part 351 and the second contact part 352. The second force component decomposed from the gravity of the door body 320 can fully balance the first force component decomposed from the lateral pushing force of the elastic part 341, so that the sliding shaft 3310 can move smoothly in the sliding groove 3320, avoiding the sliding shaft 3310 from shaking in the sliding groove 3320, and then making the door body 320 rotate smoothly, avoiding shaking and frustration during the opening and closing process of the door body 320, reducing the opening and closing noise of the door body 320, and improving the user experience.

[0084] Similarly, there is a certain gap between the free end of the sliding shaft 3310 and the bottom wall of the sliding groove 3320, so that the sliding shaft 3310 and the sliding groove 3320 can be completely contacted through the first contact part 351 and the second contact part 352, and the gravity of the door body 320 can completely act on the first contact part 351 and the second contact part 352. The second force component decomposed from the gravity of the door body 320 can fully balance the first component force decomposed from the lateral pushing force of the elastic part 341, so that the sliding shaft 3310 can move smoothly in the sliding groove 3320, avoiding the sliding shaft 3310 from shaking in the sliding groove 3320.

[0085] See also Figures 14 to 17 , Figure 14 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in an open state; Figure 15 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in a closed state; Figure 16 This is a structural diagram of a second connecting member of another embodiment of the box device of the present application;

[0086] Figure 17 yes Figure 16 Schematic diagram of the enlarged structure of part C.

[0087] Another embodiment of the present application provides a box device 400. The box device 400 includes a box body 410, a door body 420, a hinge assembly 430, and a self-locking assembly 440. A storage space is formed inside the box body 410, and the storage space has an opening. The door body 420 is used to block or open. The hinge assembly 430 is arranged on the pivot side of the box body 410. The hinge assembly 430 pivotally connects the door body 420 and the box body 410, that is, realizes a rotational connection between the box body 410 and the door body 420. The door body 420 can be opened or closed relative to the box body 410 under the action of the hinge assembly 430. The hinge assembly 430 includes a first connecting member 431 and a second connecting member 432. The first connecting member 431 is arranged on one of the box body 410 and the door body 420, and the second connecting member 432 is arranged on the other of the door body 420 and the box body 410. The first connecting member 431 is provided with at least a sliding shaft 4310, and the second connecting member 432 is provided with at least a sliding groove 4320. When the door body 420 pivots relative to the housing 410, the sliding shaft 4310 moves along the sliding groove 4320. Specifically, the first connecting member 431 is provided on the door body 420, and the second connecting member 432 is provided on the housing 410; alternatively, the first connecting member 431 is provided on the door body 420, and the second connecting member 432 is provided on the housing 410. The self-locking assembly 440 includes an elastic member 441 and a clamping member 442. When the door body 420 pivots from an open state relative to the housing 410 to a closed state, the elastic member 441 and the clamping member 442 transition from being separated from each other to being in contact with each other.

[0088] When the engaging member 442 contacts and compresses the elastic member 441, the elastic deformation of the elastic member 441 under the action of the engaging member 442 generates a rebound force, which propels the sliding shaft 4310 along the sliding groove 4320, thereby converting into a self-locking force that propels the door body 420 to continue rotating toward the housing 410. The door body 420 gradually rotates toward the housing 410 until it is closed. Simultaneously, the elastic deformation of the elastic member 441 under the action of the engaging member 442 generates a lateral force. As the sliding shaft 4310 moves within the sliding groove 4320, there is a certain clearance between the sliding shaft 4310 and the groove wall 4320. This lateral force generates a relative motion tendency along the radial direction of the sliding shaft 4310 between the sliding shaft 4310 and the groove wall 4320, causing the sliding shaft 4310 to wobble within the sliding groove 4320, thereby causing the door body 420 to wobble and stutter during rotation. The slide groove 4320 includes a transition region 450. During at least partial contact between the elastic member 441 and the engaging member 442, the slide shaft 4310 is located within the transition region 450. When the slide shaft 4310 is located within the transition region 450, a first radial gap exists between the slide shaft 4310 and the groove wall of the slide groove 4320. When the slide shaft 4310 is located in at least a portion of the groove section outside the transition region 450, a second radial gap exists between the slide shaft 4310 and the groove wall of the slide groove 4320. The first radial gap is smaller than the second radial gap. By providing the transition region 450, when the slide shaft 4310 is located within the transition region 450, the first radial gap between the slide shaft 4310 and the groove wall of the slide groove 4320 is smaller than the second radial gap when the slide shaft 4310 is located in at least a portion of the groove section. The transition region 450 can reduce or even prevent the slide shaft 4310 from sliding between the slide shaft 4310 and the groove wall of the slide groove 4320 under lateral force. The door 420 of the box device 400 of the present application rotates smoothly, avoiding clearance fit issues between the slide shaft 4310 and the slide groove 4320 caused by design and manufacturing tolerances, reducing or even eliminating shaking and jerking during the closing process of the door 420, reducing closing noise of the door 420, and improving the user experience. The force decomposition mechanism and self-locking assembly 440 of the present application have a simple structure, mature technology, easy manufacturing, and low cost.

[0089] In some embodiments, the clip 442 has a most convex point 4421, which is the position on the clip 442 where the elastic deformation of the elastic member 441 is maximized. At this point, the elastic member 441 reaches its maximum deformation, and the lateral driving force generated by the elastic deformation of the elastic member 441 under the action of the clip 442 reaches its maximum. At this point, the sliding shaft 4310 is more likely to wobble within the slide groove 4320. The sliding shaft 4310 is located within the transition region 450, at least within the predetermined contact range before and after the most convex point 4421. This reduces or even eliminates any wobble or jerkiness of the door body 420 during opening and closing, reduces noise during opening and closing, and improves the user experience.

[0090] Specifically, when the door 420 rotates from the open state relative to the box body 410 to the closed state, the user pushes the door 420. When the door 420 rotates to a certain angle relative to the box body 410, the clamping member 442 contacts and squeezes the elastic member 441. After the elastic member 441 passes the most convex point 4421 of the clamping member 442, the rebound force generated by the deformation of the elastic member 441 can be converted into a self-locking force that pushes the door 420 to continue rotating toward the box body 410. Under the rebound force, the door 420 gradually rotates toward the box body 410. After the magnetic strips of the box body 410 and the door 420 are attracted, the door 420 is in the closed state. The user does not need to push the door 420 completely to close it with the box body 410. Instead, after closing the door 420 to a certain angle, the door 420 can automatically close, ensuring the tightness of the door 420 and the box body 410, and improving user convenience. Since the sliding shaft 4310 is located in the transition area 450 within the predetermined contact range before and after the most convex point 4421, the shaking of the sliding shaft 4310 in the sliding groove 4320 can be reduced or even avoided, and the shaking and jerking feeling of the door body 420 during the opening and closing process can be reduced or even avoided, thereby reducing the noise of the door body 420 during the opening and closing process and improving the user experience.

[0091] Furthermore, when the elastic member 441 contacts the most convex point 4421 of the clamping member 442, the sliding shaft 4310 is located at the preset reference point C1 within the transition region 450. The width of the slide groove 4320 within the transition region 450 gradually widens from the preset reference point C1 toward both sides. As a result, when the sliding shaft 4310 moves within the slide groove 4320, as the lateral driving force generated by the elastic deformation of the elastic member 441 under the action of the clamping member 442 increases, the width of the slide groove 4320 within the transition region 450 gradually narrows at positions more prone to radial deviation. This can reduce or even prevent shaking of the sliding shaft 4310 within the slide groove 4320, reduce or even prevent shaking and jerking of the door body 420 during opening and closing, reduce noise during opening and closing of the door body 420, and improve the user experience. It should be noted that the direction perpendicular to the direction of movement of the slide shaft 4310 in the slide groove 4320 is defined as the first direction, and the distance between the intersection of the first direction and the groove walls on both sides of the slide groove 4320 is defined as the width of the slide groove 4320. For example, the width of the slide groove 4320 in other areas is 6 mm. After the transition area 450 is provided, the width of the slide groove 4320 at the preset reference point C1 is 5.8 mm. The width of the slide groove 4320 in the transition area 450 gradually widens from the preset reference point C1 toward both sides.

[0092] To effectively prevent the door body 420 from shaking and jerking during opening and closing, when the sliding shaft 4310 is located in the transition region 450, an interference fit is formed between the sliding shaft 4310 and the slide groove 4320. This prevents shaking of the sliding shaft 4310 within the slide groove 4320, thus preventing shaking and jerking of the door body 420 during opening and closing, and reducing noise during opening and closing of the door body 420. When the sliding shaft 4310 is located in other slot sections, a clearance fit is formed between the sliding shaft 4310 and the slide groove 4320, thereby facilitating smooth movement of the sliding shaft 4310 within the other slide grooves 4320 and improving the smoothness of the door body 420's rotation.

[0093] In some embodiments, at least one side wall of the chute 4320 in the transition region 450 has an elastic section 453. The elastic section 453 is used to provide elastic support for the sliding shaft 4310 located in the transition region 450 along the radial direction of the sliding shaft 4310. Specifically, the side walls of the chute 4320 are each provided with an elastic section 453 in the transition region 450. When the sliding shaft 4310 moves along the chute 4320, the sliding shaft 4310 squeezes the elastic sections 453 on both sides. The rebound force of the elastic sections 453 on both sides provides effective elastic support for the sliding shaft 4310 located in the transition region 450 along the radial direction of the sliding shaft 4310. The rebound force of the elastic sections 453 on both sides of the chute wall can effectively push the sliding shaft 4310, causing the door body 420 to rotate toward the box body 410.

[0094] The elastic section 453 is an elastic layer attached to the wall of the first chute 4321. The elastic layer can be made of a resilient material, such as polyformaldehyde. In other embodiments, the elastic section 453 is formed by the resilient wall of the chute 4320. The wall of the chute 4320 is made of a resilient material, such as polyformaldehyde. Furthermore, the second connector 432 is made of a polyformaldehyde material, such as polyformaldehyde.

[0095] In some embodiments, when the elastic member 441 contacts the most convex point 4421 of the engaging member 442, the sliding shaft 4310 is located at a preset reference point C1 within the transition region 450. The elastic section 453 is an elastic layer attached to the wall of the first slide groove 4321. The thickness of the elastic section 453 along the width of the slide groove 4320 gradually decreases from the preset reference point C1 toward both sides. As a result, the interference fit provided by the elastic section 453 for the sliding shaft 4310 gradually decreases from the preset reference point C1 toward both sides. The width of the slide groove 4320 within the transition region 450 gradually widens from the preset reference point C1 toward both sides. This prevents the sliding shaft 4310 from shaking within the slide groove 4320, prevents shaking and jerking of the door body 420 during opening and closing, and reduces noise during opening and closing of the door body 420.

[0096] At the preset reference point C1, the interference between the sliding shaft 4310 and the sliding groove 4320 is 0-1 mm, for example, 0 mm, 0.5 mm, or 1 mm. When the interference between the sliding shaft 4310 and the sliding groove 4320 is 0 mm, the sliding shaft 4310 and the sliding groove 4320 are in contact at the preset reference point C1 but without any interaction force, thereby reducing the wobble of the sliding shaft 4310 within the sliding groove 4320. The interference between the sliding shaft 4310 and the sliding groove 4320 can be adjusted based on the elastic modulus of the elastic layer and the gap between the sliding shaft 4310 and the groove wall of the sliding groove 4320.

[0097] In some embodiments, the slide groove 4320 includes a first slide groove 4321 and a second slide groove 4322, the sliding shaft 4310 includes a first slide shaft 4311 and a second slide shaft 4312, and the transition area 450 includes a first transition area 451 located at the first slide groove 4321 and a second transition area 452 located at the second slide groove 4322. When the door body 420 pivots relative to the box body 410, the first slide shaft 4311 moves along the first slide groove 4321, and the second slide shaft 4312 moves along the second slide groove 4322. The first slide shaft 4311 and the second slide shaft 4312 enter and leave the first transition area 451 and the second transition area 452 respectively at the same time. Thus, the force exerted by the first transition area 451 on the first sliding shaft 4311 can reduce or even avoid the sliding of the first sliding shaft 4311 between the first sliding shaft 4311 and the groove wall of the first sliding groove 4321 under the lateral pushing force, and the force exerted by the second transition area 452 on the second sliding shaft 4312 can reduce or even avoid the sliding of the second sliding shaft 4312 between the groove wall of the second sliding shaft 4312 and the second sliding groove 4322 under the lateral pushing force. The first sliding shaft 4311 and the second sliding shaft 4312 enter and leave the first transition area 451 and the second transition area 452 respectively at the same time, which can make the door body 420 rotate more smoothly, reduce or even avoid the shaking and frustration during the closing process of the door body 420, reduce the closing noise of the door body 420, and improve the user experience.

[0098] The parameters of the second transition region 452 are similar to those of the first transition region 451 and are not described in detail herein.

[0099] Specifically, the first sliding shaft 4311 and the second sliding shaft 4312 can be provided on the first connecting member 431, and the corresponding first sliding groove 4321 and the second sliding groove 4322 can be provided on the second connecting member 432. Alternatively, the first sliding groove 4321 and the second sliding groove 4322 can be provided on the first connecting member 431, and the corresponding first sliding shaft 4311 and the second sliding shaft 4312 can be provided on the second connecting member 432. Alternatively, one of the first sliding shaft 4311 and the second sliding shaft 4312 can be provided on the first connecting member 431, and the other can be provided on the second connecting member 432, and one of the first sliding groove 4321 and the second sliding groove 4322 can be provided on the second connecting member 432, and the other can be provided on the first connecting member 431.

[0100] The box device 400 of the present application may adopt a single-axis or double-axis hinge assembly 430, and may also adopt a three-axis or more hinge assembly 430.

[0101] See also Figures 18 to 20 , Figure 18This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in an open state; Figure 19 This is a partial structural diagram of another embodiment of the box device of the present application. At this time, the box device is in a closed state; Figure 20 It is a structural schematic diagram of the second connecting member of another embodiment of the box device of the present application.

[0102] Another embodiment of the present application provides a box device 500. The box device 500 includes a box body 510, a door body 520, a hinge assembly 530, and a self-locking assembly 540. A storage space is formed inside the box body 510, and the storage space has an opening. The door body 520 is used to block or open the opening. The hinge assembly 530 is arranged on the pivot side of the box body 510. The hinge assembly 530 pivotally connects the door body 520 and the box body 510, thereby achieving a rotational connection between the box body 510 and the door body 520. The door body 520 can be opened or closed relative to the box body 510 under the action of the hinge assembly 530. The hinge assembly 530 includes a first connecting member 531 and a second connecting member 532. The first connecting member 531 is arranged on one of the box body 510 and the door body 520, and the second connecting member 532 is arranged on the other of the door body 520 and the box body 510. The first connecting member 531 is provided with at least a sliding shaft 5310, and the second connecting member 532 is provided with at least a sliding groove 5320. When the door body 520 pivots relative to the housing 510, the sliding shaft 5310 moves along the sliding groove 5320. Specifically, the first connecting member 531 is provided on the door body 520, and the second connecting member 532 is provided on the housing 510; alternatively, the first connecting member 531 is provided on the door body 520, and the second connecting member 532 is provided on the housing 510. The self-locking assembly 540 includes an elastic member 541 and a clamping member 542. When the door body 520 pivots from an open state relative to the housing 510 to a closed state, the elastic member 541 and the clamping member 542 transition from being separated from each other to being in contact with each other. The clamping member 542 has a most convex point 5421 and a locking position 5422. The most convex point 5421 is the position on the clamping member 542 where the elastic deformation of the elastic member 541 is the largest. When the door body 520 rotates from an open state relative to the box body 510 to a closed state, the elastic member 541 and the clamping member 542 contact each other, and after the elastic member 541 passes over the most convex point 5421 of the clamping member 542, it enters the locking position 5422, thereby locking the door body 520 in the closed state.

[0103] In which, before the elastic member 541 forms contact with the snap-connecting member 542, the sliding shaft 5310 moves in the first section D1 of the sliding groove 5320, and before the elastic member 541 forms contact with the snap-connecting member 542 and reaches the most convex point 5421, the sliding shaft 5310 moves in the second section D2 of the sliding groove 5320, and in the process of the elastic member 541 reaching the locking position 5422 from the most convex point 5421, the sliding shaft 5310 moves in the third section D3 of the sliding groove 5320, wherein the width of at least part of the third section D3 of the sliding groove 5320 close to the locking position 5422 is greater than the width of the first section D1 of the sliding groove 5320. When the door body 520 rotates to a state close to being closed, that is, when the sliding shaft 5310 is located in the third section D3 of the sliding groove 5320, since the width of at least part of the third section D3 corresponding to the elastic member 541 close to the locking position 5422 is greater than the width of the first section D1 of the sliding groove 5320, the fitting clearance between the sliding shaft 5310 and the sliding groove 5320 is larger, and the friction between the sliding shaft 5310 and the sliding groove 5320 is smaller, thereby avoiding affecting the rebound force of the elastic member 541, effectively improving the smoothness of closing the door at a small angle, and improving the quality of the box door device.

[0104] Specifically, in the process of the door body 520 rotating from the open state to the closed state relative to the box body 510, the user pushes the door body 520. When the door body 520 rotates relative to the box body 510 to a certain angle, the clamping member 542 contacts and squeezes the elastic member 541. After the elastic member 541 passes the most convex point 5421 of the clamping member 542, the rebound force generated by the deformation of the elastic member 541 can be converted into a self-locking force that pushes the door body 520 to continue to rotate toward the box body 510. The door body 520 gradually rotates toward the side of the box body 510 under the rebound force. After the door body 520 continues to rotate toward the box body 510 until the magnetic strips of the box body 510 and the door body 520 are attracted, the door body 520 is in a closed state. However, after the elastic member 541 passes over the most convex point 5421 of the clamping member 542, the door body 520 needs to rely on the rebound force of the elastic member 541 to automatically close the door body 520 without the action of external force. At this time, the sliding shaft 5310 is located in the third section D3 of the sliding groove 5320. If the door body 520 in the area cannot be effectively closed at this time, a gap will exist between the door seal and the door body 520. Since the door closing angle is already small, the door opening alarm function designed on the refrigerator has determined that the door body 520 is closed and no longer has a prompt alarm function. During the long-term use of the refrigerator, the door body 520 will leak cold and condensation and ice will form seriously. In the present application, when the sliding shaft 5310 is located in the third section D3 of the slide groove 5320, since the width of at least part of the third section D3 corresponding to the elastic member 541 near the locking position 5422 is greater than the width of the first section D1 of the slide groove 5320, the matching clearance between the sliding shaft 5310 and the slide groove 5320 is large, and the friction between the sliding shaft 5310 and the slide groove 5320 is small, thereby avoiding affecting the rebound force of the elastic member 541, effectively improving the smoothness of closing the door at a small angle, improving the quality of the box door device, and avoiding a series of problems caused by the door body 520 not being closed. In the box device 500 of the present application, the user does not need to push the door body 520 completely to close it with the box body 510. Instead, after closing the door body 520 to a certain angle, the door body 520 can be automatically closed, and the closing tightness of the door body 520 and the box body 510 is guaranteed, thereby improving user convenience.

[0105] In some embodiments, the width of the third section D3 gradually widens as it moves away from the second section D2. As the elastic member 541 approaches the locking position 5422 from the most convex point 5421, the clearance between the sliding shaft 5310 and the sliding groove 5320 in the third section D3 gradually increases. This gradually reduces friction between the sliding shaft 5310 and the sliding groove 5320, preventing it from affecting the resilience of the elastic member 541. This effectively improves smooth door closing at small angles and ensures that the door 520 is securely closed on the housing 510. Furthermore, the gradually widening width of the third section D3 as it moves away from the second section D2 reduces or even eliminates wobble of the sliding shaft 5310 within the sliding groove 5320 when the elastic member 541 passes the most convex point 5421. This reduces or even eliminates wobble and jerking of the door 520 during opening and closing, reduces noise during door opening and closing, and improves the user experience.

[0106] In some embodiments, the third interval D3 includes a first sub-interval and a second sub-interval. In the process of the elastic member 541 reaching the locking position 5422 from the most convex point 5421, the sliding shaft 5310 passes through the first sub-interval and the second sub-interval in succession. The first sub-interval is close to the second interval D2, and the second sub-interval is far away from the second interval D2. When the sliding shaft 5310 is in the first sub-interval, the elastic member just passes over the most convex point 5421 of the clamping member 542. In order to reduce or even avoid the shaking of the sliding shaft 5310 in the sliding groove 5320, the width of the first sub-interval is smaller than the width of the first interval D1 of the sliding groove 5320, thereby reducing or even avoiding the shaking and jerk of the door body 520 during the opening and closing process, and reducing the noise of the door body 520 during the opening and closing process. When the sliding shaft 5310 is located in the second sub-interval, the elastic member 541 is close to the locking position 5422 of the latching member 542. In order to reduce the friction between the sliding shaft 5310 and the sliding groove 5320, the width of the second sub-interval is greater than the width of the first interval D1 of the sliding groove 5320, which can effectively reduce the friction between the sliding shaft 5310 and the sliding groove 5320, avoid affecting the rebound force of the elastic member 541, effectively improve the smoothness of closing the door at a small angle, and ensure that the door body 520 is closed on the box body 510.

[0107] In some embodiments, the length of the third section D3 is greater than that of the second section D2, so that both the first and second subsections of the third section D3 are of sufficient length. When the elastic member 541 passes over the most convex point 5421 of the engaging member 542, the first subsection can be set to a certain length to accommodate the release of the elastic member 541's rebound force, effectively reducing or even eliminating the wobble of the sliding shaft 5310 within the sliding groove 5320, reducing or even eliminating the wobble and jerking sensation of the door body 520 during opening and closing, and reducing noise during opening and closing of the door body 520. When the elastic member 541 approaches the locking position 5422 of the engaging member 542, the second subsection can be set to a certain length to increase the sliding clearance between the sliding shaft 5310 and the sliding groove 5320, effectively reducing friction between the sliding shaft 5310 and the sliding groove 5320, effectively improving the smoothness of closing the door at a small angle, and ensuring that the door body 520 is closed on the housing 510. Specifically, the length of the third section D3 is 8 mm, and the length of the second section D2 is 4.5 mm.

[0108] When the elastic member 541 and the snap-in member 542 transition from being separated from each other to being in contact with each other, and the elastic member 541 is close to the most convex point 5421 of the snap-in member 542, the rebound force of the elastic member 541 is relatively large. In order to reduce or even avoid the shaking of the sliding shaft 5310 in the sliding groove 5320, the width of at least part of the second section D2 of the sliding groove 5320 close to the most convex point 5421 is smaller than the width of the first section D1 of the sliding groove 5320, thereby reducing or even avoiding the shaking of the sliding shaft 5310 in the sliding groove 5320, reducing or even avoiding the shaking and frustration of the door body 520 during the opening and closing process, reducing the noise of the door body 520 during the opening and closing process, and improving the user experience.

[0109] When the sliding shaft 5310 is located in the first section D1 of the sliding groove 5320, and when the sliding shaft 5310 is located in at least a part of the third section D3 of the sliding groove 5320 close to the locking position 5422, the elastic member 541 does not contact the clamping member 542 or the interaction force between the elastic member 541 and the clamping member 542 is very small, and the sliding shaft 5310 is not likely to shake when moving in the sliding groove 5320. In order to improve the smoothness of the movement of the sliding shaft 5310 in the sliding groove 5320, the sliding groove is The width of the first section D1 of 5320 and the width of at least part of the third section D3 of the slide groove 5320 near the locking position 5422 are set so that the slide groove 5320 and the sliding shaft 5310 are matched along the radial clearance of the sliding shaft 5310, thereby reducing the friction between the sliding shaft 5310 and the slide groove 5320, improving the smoothness of the movement of the sliding shaft 5310 in the slide groove 5320, and the door body 520 rotates smoothly relative to the box body 510, thereby improving the quality of the box body device 500.

[0110] When the sliding shaft 5310 is located in at least a part of the second section D2 of the sliding groove 5320 close to the most convex point 5421, the rebound force of the elastic member 541 is relatively large. In order to reduce or even avoid the shaking of the sliding shaft 5310 in the sliding groove 5320, the width of at least a part of the second section D2 of the sliding groove 5320 close to the most convex point 5421 is set so that the sliding groove 5320 and the sliding shaft 5310 have a radial interference fit along the sliding shaft 5310, thereby reducing or even avoiding the shaking of the sliding shaft 5310 in the sliding groove 5320, reducing or even avoiding the shaking and stuttering of the door body 520 during the opening and closing process, reducing the noise of the door body 520 during the opening and closing process, and improving the user experience.

[0111] When the sliding shaft 5310 is located in at least a part of the third section D3 of the sliding groove 5320 close to the most convex point 5421, the rebound force of the elastic member 541 is relatively large. In order to reduce or even avoid the shaking of the sliding shaft 5310 in the sliding groove 5320, the width of at least a part of the third section D3 of the sliding groove 5320 close to the most convex point 5421 is set so that the sliding groove 5320 and the sliding shaft 5310 are interference fit along the radial direction of the sliding shaft 5310, thereby reducing or even avoiding the shaking of the sliding shaft 5310 in the sliding groove 5320, reducing or even avoiding the shaking and frustration of the door body 520 during the opening and closing process, reducing the noise of the door body 520 during the opening and closing process, and improving the user experience.

[0112] In some embodiments, the portion of the second section D2 of the chute 5320 that is in radial interference fit with the sliding shaft 5310 has an elastic section, and the elastic section is used to provide elastic support along the radial direction of the sliding shaft 5310 to the sliding shaft 5310 located in this section. Specifically, the groove walls on both sides of the chute 5320 are correspondingly provided with elastic sections in this section. Among them, the elastic section is an elastic layer attached to the groove wall of the chute 5320, and the elastic layer can be made of a material with resilience, such as polyformaldehyde material. In other embodiments, the elastic section is formed by the groove wall of the chute 5320 with resilience. The groove wall of the chute 5320 is made of a material with resilience, such as polyformaldehyde material. Further, the second connecting member 532 is formed of polyformaldehyde material, such as polyformaldehyde material.

[0113] Similarly, the portion of the third section D3 of the chute 5320 that is in radial interference fit with the sliding shaft 5310 has an elastic section, and the elastic section is used to provide elastic support along the radial direction of the sliding shaft 5310 to the sliding shaft 5310 located in this section. Specifically, the groove walls on both sides of the chute 5320 are correspondingly provided with elastic sections in this section. Among them, the elastic section is an elastic layer attached to the groove wall of the chute 5320, and the elastic layer can be made of a material with resilience, such as polyformaldehyde material. In other embodiments, the elastic section is formed by the groove wall of the chute 5320 with resilience. The groove wall of the chute 5320 is made of a material with resilience, such as polyformaldehyde material. Further, the second connecting member 532 is formed of a polyformaldehyde material, such as polyformaldehyde material.

[0114] In addition, the width of the second section D2 gradually widens as it moves away from the third section D3. When the elastic member 541 and the clip 542 transition from separation to contact, and the elastic member 541 approaches the most convex point 5421 of the clip 542, the resilience of the elastic member 541 gradually increases. To reduce or even prevent wobbling of the sliding shaft 5310 within the chute 5320, the width of the second section D2 gradually widens as it moves away from the third section D3. That is, the clearance between the sliding shaft 5310 and the second section D2 of the chute 5320 gradually decreases as it approaches the third section D3. This can reduce or even prevent wobbling of the sliding shaft 5310 within the chute 5320, reduce or even prevent wobbling and jerking of the door body 520 during opening and closing, reduce noise during opening and closing of the door body 520, and enhance the user experience.

[0115] Furthermore, when the sliding shaft 5310 is located in the first section D1 of the slide groove 5320, a first radial gap is defined between the sliding shaft 5310 and the slide groove 5320. When the sliding shaft 5310 is located in at least a portion of the third section D3 of the slide groove 5320 near the locking position 5422, a second radial gap is defined between the sliding shaft 5310 and the slide groove 5320. The difference between the second radial gap and the first radial gap is not less than 0.15 mm, such as 0.15 mm, 0.3 mm, 0.45 mm, etc. By setting a sufficient difference between the second radial gap and the first radial gap, the fitting clearance between the sliding shaft 5310 and the slide groove 5320 can be sufficiently increased when the sliding shaft 5310 is located in at least a portion of the third section D3 of the slide groove 5320 near the locking position 5422, thereby reducing the friction between the sliding shaft 5310 and the slide groove 5320, effectively improving the smoothness of door closing and enhancing the quality of the door device.

[0116] Specifically, the diameter of the sliding shaft 5310 is 5.95 mm. When the sliding shaft 5310 is located in the first section D1 of the sliding groove 5320, the width of the sliding groove 5320 is 6.1 mm, the force required to close the door is approximately 6 N, and the first radial clearance is 0.15 mm. When the elastic member 541 contacts the most convex point 5421 of the clamping member 542, the sliding shaft 5310 is located at the junction of the second section D2 and the third section D3. Here, the width of the sliding groove 5320 is the smallest, at 5.8 mm, and the force required to close the door is approximately 12 N. When the elastic member 541 passes over the most convex point 5421 of the clamping member 542, there is no external force, and the door body 520 automatically closes by relying on the rebound force of the elastic member 541. When the sliding shaft 5310 moves to at least a part of the third section D3 of the sliding groove 5320 close to the locking position 5422, the width of the sliding groove 5320 is 6.25mm, and the second radial gap is 0.3mm. At this time, the difference between the second radial gap and the first radial gap is 0.15mm.

[0117] In some embodiments, the slide groove 5320 includes a first slide groove 5321 and a second slide groove 5322, and the slide shaft 5310 includes a first slide shaft 5311 and a second slide shaft 5312. When the door body 520 pivots relative to the housing 510, the first slide shaft 5311 moves along the first slide groove 5321, and the second slide shaft 5312 moves along the second slide groove 5322. The first slide groove 5321 includes the aforementioned first section D1, second section D2, and third section D3. If the second slide shaft 5312 is already positioned and rotated within the second slide groove 5322 when the first slide shaft 5311 moves within the third section D3 of the first slide groove 5321, the width of the second slide groove 5322 segment when the elastic member 541 is near the locking position 5422 can be set to be greater than the width of the other segments, thereby facilitating the rotation of the second slide shaft 5312 within the second slide groove 5322. When the first sliding shaft 5311 moves within the third section D3 of the first sliding groove 5321, the second sliding shaft 5312 moves within the second sliding groove 5322. The second sliding groove 5322 can also be configured to include the first section D1, the second section D2, and the third section D3 described above. The clearance between the sliding shaft 5310 and the sliding groove 5320 is large, and the friction between the sliding shaft 5310 and the sliding groove 5320 is low, thus preventing the resilience of the elastic member 541 from being affected. This effectively improves the smoothness of closing the door at a small angle and enhances the quality of the door assembly.

[0118] Specifically, the first sliding shaft 5311 and the second sliding shaft 5312 can be provided on the first connecting member 531, and the corresponding first sliding groove 5321 and the second sliding groove 5322 can be provided on the second connecting member 532. Alternatively, the first sliding groove 5321 and the second sliding groove 5322 can be provided on the first connecting member 531, and the corresponding first sliding shaft 5311 and the second sliding shaft 5312 can be provided on the second connecting member 532. Alternatively, one of the first sliding shaft 5311 and the second sliding shaft 5312 can be provided on the first connecting member 531, and the other can be provided on the second connecting member 532, and the corresponding one of the first sliding groove 5321 and the second sliding groove 5322 can be provided on the second connecting member 532, and the other can be provided on the first connecting member 531.

[0119] The box device 500 of the present application may adopt a single-axis or double-axis hinge assembly 530, and may also adopt a three-axis or more hinge assembly 530.

[0120] Another embodiment of the present application provides a refrigeration device. The refrigeration device includes the housing assembly of any of the above embodiments. Specifically, the refrigeration device utilizes the aforementioned door, housing, and hinge assembly between the door and housing. The refrigeration device can be a refrigerator, freezer, wine cabinet, fresh produce cabinet, or the like.

[0121] The terms "first", "second" and "third" in this application are only used for descriptive purposes and should not be understood as indicating the number of the indicated technical features. Thus, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of these features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative positional relationship, movement, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0122] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A box device, characterized in that: include: A box body, wherein a receiving space is provided inside the box body, wherein the receiving space has an opening; A door body, the door body is used to block the opening, and the door body is provided with a magnetic strip; A hinge assembly is provided on the pivot side of the box body and pivotally connects the box body and the door body; The hinge assembly includes a first connecting member and a second connecting member, the first connecting member being provided on one of the box body and the door body, and the second connecting member being provided on the other; the first connecting member being provided with at least a sliding shaft, and the second connecting member being provided with at least a sliding groove, and the sliding shaft moving along the sliding groove when the door body pivots relative to the box body; The self-locking assembly includes an elastic member and a clamping member. When the door body rotates from an open state relative to the box body to a closed state, the elastic member and the clamping member transition from being separated from each other to being in contact with each other. The elastic deformation of the elastic member under the action of the clamping member forms a lateral driving force. The lateral driving force generates a relative movement tendency along the radial direction of the sliding shaft between the sliding shaft and the groove wall of the sliding groove. The box device is further provided with a force decomposition mechanism, which decomposes the lateral driving force into a first force component and decomposes the gravity of the door body into a second force component, wherein the first force component and the second force component are opposite to each other; The force decomposition mechanism includes a first contact portion provided on the sliding shaft and a second contact portion provided on the groove wall of the sliding groove, wherein the first contact portion and the second contact portion are in contact with each other, and at least one of the first contact portion and the second contact portion is inclined relative to the radial cross section of the sliding shaft, thereby decomposing the lateral pushing force and the gravity of the door body into the first force component and the second force component along the inclination direction of at least one of the first contact portion and the second contact portion relative to the radial cross section of the sliding shaft; When the elastic member and the clamping member are separated from each other, the outer peripheral wall of the sliding shaft and the groove wall of the sliding groove have a radial gap along the radial direction of the sliding shaft, and the contact area between the first contact portion and the second contact portion has a movable margin along the axial direction of the sliding shaft, and the movable margin is greater than or equal to a first preset value, and the first preset value is the product of the tangent value of the inclination angle of the first contact portion and the radial gap.

2. The box device according to claim 1, characterized in that: The first contact portion and the second contact portion are inclined surfaces that are inclined relative to a radial cross section of the sliding shaft and have the same inclination angle.

3. The box device according to claim 2, characterized in that: An inclination angle of the first contact portion and the second contact portion relative to a radial cross section of the sliding shaft is greater than or equal to 45° and less than 90°.

4. The box device according to claim 1, characterized in that: The width of the orthographic projections of the first contact portion and the second contact portion on the radial cross section of the sliding shaft is greater than or equal to 0.6 mm.

5. The box device according to claim 1, characterized in that: A height of an orthographic projection of the first contact portion on the axial cross section of the sliding shaft is greater than a height of an orthographic projection of the second contact portion on the axial cross section of the sliding shaft.

6. The box device according to claim 1, characterized in that: The first contact portion is located at one end of the sliding shaft close to the first connecting member, and the second contact portion is located at the notch of the sliding groove, or the first contact portion is located at one end of the sliding shaft away from the first connecting member, and the second contact portion is located at the bottom of the sliding groove.

7. The box device according to claim 1, characterized in that: The slide groove includes a first slide groove and a second slide groove, the sliding shaft includes a first slide shaft and a second slide shaft, the first contact portion is arranged on at least one of the first slide shaft and the second slide shaft, and the second contact portion is correspondingly arranged on at least one of the first slide groove and the second slide groove.

8. A refrigeration device, characterized in that: The refrigeration equipment includes the box device according to any one of claims 1 to 7.

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