Refrigerator

Abstract

The embodiment of the utility model provides a refrigerator, belongs to the technical field of household appliances, and aims to solve the technical problems that in the related technology, a gap is likely to occur between a door body and a refrigerator body, and the sealing performance of a containing cavity is poor. The refrigerator comprises a refrigerator body, a door body and a gravity self-closing structure. The gravity self-closing structure comprises a fixed part and a movable part which are matched with each other, and the movable part is provided with a track groove with a first inflection point; the fixing piece is provided with a first hinge shaft and a second hinge shaft; the movable part is provided with an abutting part facing the fixed part; the fixing piece is provided with an inclined part, and the inclined part is provided with a high end and a low end; in the closing process of the door body, the first hinge shaft and the second hinge shaft move in the track groove, and the abutting part at least abuts against the inclined part; when the abutting part moves from the high end of the inclined part to the low end of the inclined part, the door body moves downwards in the vertical direction. According to the refrigerator, a gap between the door body and the refrigerator body can be reduced, and the sealing performance of the containing cavity is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of household appliances, and in particular to a refrigerator. Background Art

[0002] A refrigerator is a common household appliance that can keep food or other items at a constant low temperature. The refrigerator includes a box body and a door body. The box body is formed with a receiving cavity for receiving food or other items. The door body can be movably arranged on the box body so as to close or open the receiving cavity through the door body. However, when the door body is closed to close the receiving cavity, a gap is likely to appear between the door body and the box body, and the sealing performance of the receiving cavity is poor. Utility Model Content

[0003] The embodiment of the present application provides a refrigerator that can solve the technical problems of gaps easily appearing between the door body and the box body and poor sealing of the accommodating cavity.

[0004] In a first aspect, an embodiment of the present application provides a refrigerator, comprising:

[0005] A box body, wherein the box body is formed with a receiving cavity;

[0006] A door body, the door body can be rotatably arranged on the box body to close or open the accommodating cavity;

[0007] A gravity self-closing structure is arranged at the lower end of the door body; the gravity self-closing structure comprises a matching fixed part and a movable part, the fixed part is arranged on the box body, and the movable part is fixedly arranged on the door body;

[0008] The movable member is provided with a track groove, the track groove faces the fixed member, and the track groove has a first inflection point; the movable member is provided with an abutment portion, the abutment portion faces the fixed member;

[0009] The fixing member is provided with a first hinge shaft and a second hinge shaft, and the first hinge shaft and the second hinge shaft can move in the track groove; the fixing member has an inclined portion facing the movable member, the first end of the inclined portion is higher than the second end of the inclined portion, and the second end of the inclined portion is inclined downward;

[0010] During the process of the door body rotating to open, the first hinge shaft and the second hinge shaft move from the first end of the track groove toward the second end of the track groove, and the abutment portion at least moves from the second end of the inclined portion toward the first end of the inclined portion;

[0011] During the process of the door body rotating to open, the first hinge shaft and the second hinge shaft move from the first end of the track groove toward the second end of the track groove; when the abutting portion is in sliding contact with the inclined portion, the abutting portion moves from the lower end of the inclined portion toward the higher end of the inclined portion, and the door body is displaced upward in the vertical direction; when the upward displacement of the door body in the vertical direction ends, at least one of the first hinge shaft and the second hinge shaft has not moved to the first inflection point;

[0012] During the process of the door body rotating and closing, the first hinge axis and the second hinge axis move from the second end of the track groove toward the first end of the track groove; when the abutment portion slides in contact with the inclined portion, the abutment portion moves from the high end of the inclined portion toward the low end of the inclined portion, and the door body is displaced downward in the vertical direction; when the downward displacement of the door body in the vertical direction begins, at least one of the first hinge axis and the second hinge axis has passed the first inflection point.

[0013] By adopting the above technical solution, during the process of the door body rotating and closing, the hinge shaft can move from the second end of the track groove toward the first end of the track groove, and the abutment portion at least moves from the first end of the inclined portion toward the second end of the inclined portion, and the door body produces a downward displacement in the vertical direction, thereby making the door body and the box body more tightly combined.

[0014] Since the door body has a certain gravity, during the process of rotating and opening the door body, the gravity of the door body needs to be overcome so that the door body can drive the abutting part to move from the second end of the inclined part to the first end of the inclined part, thereby limiting the abutting part through the inclined part to a certain extent and reducing the possibility of movement of the abutting part; and, during the process of rotating and closing the door body, when the abutting part abuts against the inclined part, the abutting part can move toward the second end of the inclined part under the action of the gravity of the door body.

[0015] Moreover, when the abutting portion and the inclined portion abut against each other, the door body generates an upward or downward displacement in the vertical direction, and at least one of the first hinge axis and the second hinge axis is located between the first end and the first inflection point of the track groove, thereby reducing the amount of change in the speed of the first hinge axis and the second hinge axis in the horizontal direction and improving the stability of the movement process of the movable part relative to the fixed part.

[0016] It is easy to understand that when the first hinge axis and the second hinge axis move to the first inflection point, the change in the speed of the first hinge axis and the second hinge axis in the horizontal direction is large, the force on the movable part in the horizontal direction is large, and the movement of the movable part is unstable. At least one of the first hinge axis and the second hinge axis is located between the first end of the track groove and the first inflection point. When the first hinge axis and the second hinge axis move a unit length in the track groove, the door body rotates at a small angle in the horizontal direction, the change in the speed of the first hinge axis and the second hinge axis in the horizontal direction is small, the force on the movable part in the horizontal direction is small, and the movement process of the movable part is more stable.

[0017] The embodiment of the present application provides a refrigerator, including a cabinet, a door, and a gravity self-closing structure;

[0018] The door body is used to close or open the accommodating cavity of the box body; the gravity self-closing structure is arranged at the lower end of the door body, and the gravity self-closing structure comprises a fixed part and a movable part, the fixed part is arranged on the box body, and the movable part is arranged on the door body;

[0019] The movable member is provided with a track groove, and the track groove faces the fixed member; the track groove has a first inflection point; the fixed member is provided with a first hinge axis and a second hinge axis, and the first hinge axis and the second hinge axis can move along the extension direction of the track groove;

[0020] The movable member is provided with an abutment portion, the abutment portion faces the fixed member; the fixed member has an inclined portion facing the movable member, the first end of the inclined portion is higher than the second end of the inclined portion, and the second end of the inclined portion is inclined downward;

[0021] During the process of the door body rotating and closing, the hinge shaft moves from the second end of the trajectory groove toward the first end of the trajectory groove, the first hinge shaft and the second hinge shaft pass through the first inflection point, and the abutment portion moves at least from the first end of the inclined portion toward the second end of the inclined portion. When at least one of the first hinge shaft and the second hinge shaft is located between the first inflection point and the first end of the trajectory groove, the abutment portion faces the inclined portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0024] Figure 2 An exploded schematic diagram of the gravity self-closing structure of an embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the structure of the hinge plate located at the upper end of the door body according to an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the relative positions of the fixed part and the movable part in the gravity self-closing structure of the embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of an abutting portion of an embodiment of the present application being located at a first contact portion;

[0028] Figure 6 For the embodiments of this application Figure 5 Schematic diagram of the gravity-enclosed structure from another perspective;

[0029] Figure 7 This is a schematic diagram of an embodiment of the present application in which the abutting portion is located at the inclined portion;

[0030] Figure 8 For the embodiments of this application Figure 7 Schematic diagram of the gravity-enclosed structure from another perspective;

[0031] Fig. 9 It is a schematic diagram of an embodiment of the present application in which the abutting portion is located at the second end of the inclined portion;

[0032] Fig.10 For the embodiments of this application Fig. 9 Schematic diagram of the gravity-enclosed structure from another perspective;

[0033] Fig.11 This is a schematic diagram of the first hinge axis of the embodiment of the present application being located at the second end of the track groove;

[0034] Fig.12 This is a schematic diagram of an embodiment of the present application in which the first hinge axis is located at a first inflection point;

[0035] Fig.13 This is a schematic diagram of an embodiment of the present application in which the first hinge axis is located in the first slot section;

[0036] Fig.14 This is a schematic diagram of the second hinge axis of the embodiment of the present application being located at the first end of the track groove;

[0037] Fig.15 This is a schematic diagram of the first hinge axis being located in the first groove section when the abutting portion of the embodiment of the present application abuts against the first end of the inclined portion;

[0038] Fig.16 This is a schematic diagram of the first hinge axis and the second hinge axis of an embodiment of the present application being located in the first slot section.

[0039] Description of reference numerals:

[0040] 100, box body;

[0041] 200, door body;

[0042] 300, fixings;

[0043] 310, first hinge axis; 320, second hinge axis; 330, first contact portion; 340, inclined portion; 350, second contact portion; 360, hinge plate; 370, connecting member; 380, adjusting member; 381, protruding portion;

[0044] 400, movable parts;

[0045] 410, abutment portion; 411, first abutment surface; 412, second abutment surface; 413, third abutment surface; 420, track groove. DETAILED DESCRIPTION

[0046] In the related art, a refrigerator includes a box body and a door body, wherein the box body is formed with a receiving cavity for receiving food or other items, and the door body is movably arranged on the box body so as to close or open the receiving cavity through the door body. For example, the door body can be rotatably arranged on the box body, and when the door body is attached to the box body, the door body closes the receiving cavity, and when an angle is formed between the door body and the box body, the door body opens the receiving cavity so as to take out or put in food or other items through the receiving cavity.

[0047] However, when the door body is rotated to close the accommodating cavity through the door body, the door body moves toward the accommodating cavity. When the door body is attached to the surface of the box body, due to the influence of the air pressure change in the accommodating cavity, the door body is easily bounced off the surface of the box body, so that a gap is formed between the door body and the surface of the box body, thereby affecting the sealing of the accommodating cavity.

[0048] In view of this, in the refrigerator of the embodiment of the present application, during the process of rotating and closing the door body, the hinge shaft can move from the second end of the track groove toward the first end of the track groove, and the abutment portion is successively toward the first contact portion and the inclined portion, and the abutment portion can move from the first end of the first contact portion to the inclined portion, and can move downward from the first end of the inclined portion toward the second end of the inclined portion.

[0049] Since the door body has a certain gravity, during the process of rotating and opening the door body, it is necessary to overcome the gravity of the door body so that the door body can drive the abutting part to move from the second end of the inclined part to the first end of the inclined part, thereby limiting the abutting part through the inclined part to a certain extent, reducing the possibility of movement of the abutting part; and, during the process of rotating and closing the door body, when the abutting part abuts against the inclined part, the abutting part can move toward the second end of the inclined part under the action of the gravity of the door, thereby making the process of the door body moving from the inclined part to the second contact part more convenient. In addition, when the door body is closed to seal the accommodating cavity, the possibility of a gap between the door body and the box body can be reduced, thereby improving the sealing of the accommodating cavity.

[0050] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0051] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and common meanings.

[0052] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0053] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0054] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0055] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0057] Reference Figure 1 An embodiment of the present application provides a refrigerator, which includes a cabinet 100 having a receiving cavity, a door 200 connected to the cabinet 100 to open and close the receiving cavity, and a refrigeration device for supplying cold air to the receiving cavity.

[0058] The cabinet 100 includes an inner container defining a receiving cavity, an outer shell connected to the outer side of the inner container to form the appearance of a refrigerator, and an insulating layer provided between the inner container and the outer shell to insulate the receiving cavity.

[0059] The box body 100 may define a plurality of accommodating chambers. In this embodiment, the plurality of accommodating chambers may include a refrigerating chamber and a freezing chamber located below the refrigerating chamber. It should be noted that the types and arrangements of the plurality of accommodating chambers of the refrigerator are not limited thereto.

[0060] The front end of the accommodating cavity is formed with a take-in and put-out opening, through which a user can place food into the accommodating cavity or take food out of the accommodating cavity. A rotatable door 200 is provided on the box body 100 to open or close the take-in and put-out opening of the accommodating cavity.

[0061] For example, the door body 200 may be rotatably connected to the housing 100 by a hinge assembly located at an upper portion of the door body 200 and a hinge assembly located at a lower portion of the door body 200 .

[0062] The door body 200 may have a door rear wall close to the box body 100 when the door body 200 is closed, a door front wall away from the box body 100 when the door body 200 is closed, and a door side wall connected to the door rear wall. The door front wall and the door rear wall are arranged opposite to each other, the door front wall and the door side wall are connected to form a door front edge, and the door rear wall and the door side wall are connected to form a door rear edge. The door rear edge and the door front edge are arranged parallel to each other.

[0063] In some possible implementations, the hinge assembly may be close to the door side wall, so that the door body 200 can rotate relative to the box body 100 through the hinge assembly, so as to close or open the accommodating cavity through the door body 200 .

[0064] For example, when the hinge assembly is located on the right side of the box 100, the right side wall of the door body 200 can be set as the door side wall. When the hinge assembly is located on the left side of the box 100, the left side wall of the door body 200 can be set as the door side wall.

[0065] A door seal may be provided on the rear wall of the door body 200. When the door body 200 is closed, the door seal surrounds the access opening and fits against the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100, thereby ensuring that the door body 200 seals the access opening to prevent cold air from escaping. For example, the door seal may be ring-shaped.

[0066] For example, the upper and lower ends of the door body 200 may be provided with hinge assemblies. For the hinge assembly located at the upper end of the door body 200, the hinge assembly may include a hinge plate 360 ​​connected to the upper end of the box body 100, at least one hinge shaft, and a limited shaft connected to the hinge plate 360 ​​to form a guide for the movement of the door body 200. The hinge plate 360 ​​and the hinge shaft may be formed integrally, or may be provided separately and assembled with each other.

[0067] The number of hinge axes may be set to at least two. For example, the number of hinge axes may be set to two, and the two hinge axes are respectively set to the first hinge axis 310 and the second hinge axis 320.

[0068] For the hinge assembly located at the upper end of the door body 200, the hinge assembly may include a guide member connected to the upper end of the door body 200. The guide member may be provided with a track groove 420. The track groove 420 may accommodate the hinge shaft, so that the door body 200 can be opened or closed by the sliding process of the hinge shaft in the track groove 420.

[0069] Reference Figure 1-Figure 4 In some embodiments, the refrigerator may further include a gravity self-closing structure. The gravity self-closing structure may be disposed at the lower end of the door body 200, and the gravity self-closing structure may include a matching fixing member 300 and a movable member 400.

[0070] The fixing member 300 can be fixedly arranged on the box body 100, and the movable member 400 can be fixedly arranged on the door body 200. The movable member 400 and the fixing member 300 can be arranged in a vertical direction. The hinge assembly at the lower end of the door body 200 can be reused to form at least one of the fixing member 300 and the movable member 400, so as to facilitate the formation process of the gravity self-closing structure.

[0071] Alternatively, the fixing member 300 may be fixedly disposed on the door body 200 , and the movable member 400 may be fixedly disposed on the box body 100 .

[0072] When the door body 200 rotates and closes to a closed state, the door body 200 can move toward the box body 100 through the gravity self-closing structure. The door body 200 can move in a vertical direction relative to the fixed part 300 driven by the movable part 400, so that the door body 200 can abut against the box body 100.

[0073] When the door body 200 needs to be rotated to open, the gravity of the door body 200 needs to be overcome to separate the door body 200 from the box body 100, so as to reduce the gap between the door body 200 and the box body 100 when the door body 200 is in a closed state, thereby improving the sealing of the accommodating cavity.

[0074] For example, the refrigerator can be configured as a side-by-side refrigerator, and the number of door bodies 200 of the side-by-side refrigerator is set to two, so as to seal multiple accommodating cavities through the two door bodies 200; compared with other types of refrigerators such as cross-door refrigerators, the height of the door body 200 of the side-by-side refrigerator is higher, and the weight of the door body 200 of the side-by-side refrigerator is larger, so that the door body 200 of the side-by-side refrigerator has a better gravity self-closing effect through the gravity self-closing structure, thereby increasing the gravity that needs to be overcome when rotating the door body 200 to open.

[0075] It should be noted that the gap between the door body 200 and the box body 100 can also be reduced by providing a suction aid or other structures between the door body 200 and the box body 100. However, compared with other types of refrigerators such as cross-door refrigerators, the door body 200 of the side-by-side refrigerator is heavier, and the side-by-side refrigerator is usually unable to achieve a tight seal between the door body 200 and the box body 100 only by the suction aid, which also makes the gravity self-closing structure more suitable for refrigerators such as side-by-side refrigerators with heavy door bodies 200 or other types of refrigerators where the door body 200 can bear a large weight, so as to further improve the sealing effect of the door body 200 on the accommodating cavity.

[0076] Reference Figure 1-Figure 4 In some possible embodiments, the surface of the fixed part 300 facing the movable part 400 may be provided with an inclined portion 340, and the inclined portion 340 may have a high end and a low end, the high end of the inclined portion 340 may be set as the first end of the inclined portion, and the low end of the inclined portion 340 may be set as the second end of the inclined portion.

[0077] The fixing member 300 may include a first contact portion 330. The first contact portion 330 may be arranged parallel to the horizontal plane. Alternatively, the first contact portion 330 may be arranged obliquely to the horizontal plane. For example, one end of the first contact portion 330 away from the inclined portion 340 may be inclined upward or downward.

[0078] The first end of the inclined portion 340 is connected to the first contact portion 330 , the second end of the inclined portion 340 is connected to the second contact portion 350 , the first end of the inclined portion 340 is higher than the second end of the inclined portion 340 , and the inclination angle of the inclined portion 340 is greater than the inclination angle of the first contact portion 330 .

[0079] The surface of the movable member 400 facing the fixed member 300 may be provided with an abutment portion 410. During the process of the door body 200 rotating to open, the abutment portion 410 can move obliquely upward from the second end of the inclined portion 340 to the first end of the inclined portion 340, and then move to the first contact portion 330 through the first end of the inclined portion 340, thereby realizing the opening process of the door body 200.

[0080] During the process of the door body 200 rotating and closing, the abutment portion 410 can move from the first contact portion 330 to the first end of the inclined portion 340, and then move obliquely downward from the first end of the inclined portion 340 to the second end of the inclined portion 340, thereby completing the closing process of the door body 200.

[0081] Alternatively, the surface of the fixed member 300 facing the movable member 400 may be provided with a first contact portion 330, an inclined portion 340, and a second contact portion 350 connected in sequence. The first end of the inclined portion 340 is connected to the first contact portion 330, the second end of the inclined portion 340 is connected to the second contact portion 350, the first end of the inclined portion 340 is higher than the second end of the inclined portion 340, and the first contact portion 330 is closer to the movable member 400 than the second contact portion 350.

[0082] At least one of the first contact portion 330 and the second contact portion 350 may be disposed parallel to the horizontal plane. For example, the first contact portion 330 and the second contact portion 350 are disposed parallel to the horizontal plane. Alternatively, one of the first contact portion 330 and the second contact portion 350 is disposed parallel to the horizontal plane, and the other of the first contact portion 330 and the second contact portion 350 is disposed obliquely.

[0083] For example, the end of the first contact portion 330 away from the inclined portion 340 may be inclined upward or downward. The inclination angle of the first contact portion 330 may be greater than the inclination angle of the inclined portion 340. Alternatively, the inclination angle of the first contact portion 330 may be less than the inclination angle of the inclined portion 340. The second contact portion 350 may be arranged parallel to the horizontal plane.

[0084] The first contact portion 330 may be arranged parallel to the horizontal plane. The end of the second contact portion 350 away from the inclined portion 340 may be inclined upward or downward. The inclination angle of the second contact portion 350 may be greater than the inclination angle of the inclined portion 340. Alternatively, the inclination angle of the second contact portion 350 may be less than the inclination angle of the inclined portion 340.

[0085] Alternatively, the end of the first contact portion 330 away from the inclined portion 340 may be inclined upward or downward. The inclination angle of the first contact portion 330 may be greater than or less than the inclination angle of the inclined portion 340. The end of the second contact portion 350 away from the inclined portion 340 may be inclined upward or downward. The inclination angle of the second contact portion 350 may be greater than or less than the inclination angle of the inclined portion 340.

[0086] In some embodiments, the surface of the movable member 400 facing the fixed member 300 may be provided with an abutment portion 410. The abutment portion 410 may be used to abut the first contact portion 330, the inclined portion 340, and the second contact portion 350. When it is set to 0 degrees, that is, when the door body 200 is in a closed state, the bottom of the abutting portion 410 can abut against the second contact portion 350 .

[0087] It should be noted that when the refrigerator is set as a double-door refrigerator, during the process of the door body 200 rotating to open or rotate to close, the door body 200 needs to move in the horizontal direction, and the door body 200 needs to move in the vertical direction relative to the fixed part 300 under the drive of the movable part 400, so that the first hinge axis 310 and the second hinge axis 320 in the gravity self-closing structure not only need to drive the door body 200 to move in the horizontal direction, but also need to withstand the gravity from the door body 200. Due to the heavy weight of the door body 200, the first hinge axis 310 and the second hinge axis 320 are prone to deformation or even breakage due to large force.

[0088] Therefore, by providing the abutment portion 410 and using the abutment portion 410 in conjunction with the fixing member 300, part of the gravity of the door body 200 can be shared by the abutment portion 410, so that part of the gravity of the door body 200 can be transferred to the fixing member 300 through the abutment portion 410, and part of the gravity of the door body 200 is transferred to the first hinge shaft 310 and the second hinge shaft 320, thereby reducing the force applied to the first hinge shaft 310 and the second hinge shaft 320, thereby reducing the possibility of deformation of the first hinge shaft 310 and the second hinge shaft 320.

[0089] It should be noted that the opening angle of the door body 200 The opening angle of the door body 200 can be determined based on the relative position of the door body 200 and the box body 100. Taking the door body 200 located on the left side of the box body 100 as an example, the opening angle of the door body 200 is It may be equal to the angle between a horizontal line perpendicular to the left side surface of the box body 100 and the surface of the door body 200 facing the box body 100 .

[0090] For example, the opening angle of the door body 200 It can be set as: the difference between the angle between the horizontal line on the left side of the box 100 and the horizontal line on the surface of the door 200 facing the box 100 minus 90 degrees. And when the door 200 is in the closed state, when the angle between the horizontal line on the left side of the box 100 and the horizontal line on the surface of the door 200 facing the box 100 is less than 90 degrees, the opening angle of the door 200 It can also be less than 0 degrees.

[0091] Reference Figure 5-Figure 10 , the following describes the relative movement relationship between the abutment portion 410 and the fixing member 300 during the process of the door body 200 rotating to open or rotating to close by taking the fixing member 300 provided with the first contact portion 330, the inclined portion 340 and the second contact portion 350 as an example.

[0092] During the process of rotating and opening the door body 200, the abutment portion 410 can move from the second contact portion 350 to the second end of the inclined portion 340, then move obliquely upward from the second end of the inclined portion 340 to the first end of the inclined portion 340, and then move to the first contact portion 330 through the first end of the inclined portion 340, thereby realizing the opening process of the door body 200.

[0093] During the process of rotating and closing the door body 200, the abutment portion 410 can move from the first contact portion 330 to the first end of the inclined portion 340, then move obliquely downward from the first end of the inclined portion 340 to the second end of the inclined portion 340, and then move to the second contact portion 350 through the second end of the inclined portion 340, thereby realizing the closing process of the door body 200.

[0094] It should be noted that the door body 200 has a certain gravity. During the process of rotating and opening the door body 200, the gravity of the door body 200 needs to be overcome so that the door body 200 can drive the abutment part 410 to move from the second end of the inclined part 340 to the first end of the inclined part 340, thereby limiting the abutment part 410 through the inclined part 340 and reducing the possibility of movement of the abutment part 410.

[0095] When the door body 200 rotates and closes, the abutting portion 410 abuts against the inclined portion 340 and the abutting portion 410 can move toward the second end of the inclined portion 340 under the action of the gravity of the door body 200, thereby making the process of the door body 200 moving from the inclined portion 340 to the second contact portion 350 more convenient.

[0096] For example, when the abutment portion 410 moves to the second contact portion 350, the door seal located on the rear wall of the door can surround the loading and unloading opening, so that the door seal fits against the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100, thereby ensuring that the door body 200 seals the loading and unloading opening through the cooperation of the gravity self-closing structure and the door seal to prevent cold air from overflowing.

[0097] It is easy to understand that when the abutting portion 410 is located on the surface of the second contact portion 350, the bottom of the abutting portion 410 can abut against the surface of the second contact portion 350, and the bottom of the abutting portion 410 can be relatively slidably arranged on the second contact portion 350, so that part of the gravity of the door body 200 can be transferred to the second contact portion 350 through the abutting portion 410, and part of the gravity of the door body 200 is transferred to the first hinge shaft 310 and the second hinge shaft 320, thereby increasing the support of the fixing member 300 for the door body 200.

[0098] The second contact portion 350 is spaced apart relative to the abutting portion 410, and the abutting portion 410 is brought into contact with the second contact portion 350 by abutting the bottom of the abutting portion 410 against the surface of the second contact portion 350. The second contact portion 350 can bear part of the gravity of the door body 200, thereby reducing the force applied to the first hinge shaft 310 and the second hinge shaft 320, thereby reducing the possibility of deformation of the first hinge shaft 310 and the second hinge shaft 320.

[0099] Alternatively, the bottom of the abutting portion 410 (e.g., the subsequent first abutting surface 411) may also be spaced apart from the second contact portion 350. When the abutting portion 410 is located on the surface of the second contact portion 350, the bottom of the abutting portion 410 may be spaced apart from the second contact portion 350. The distance between the bottom of the abutting portion 410 and the second contact portion 350 may be set to be greater than or equal to 0.5 mm and less than or equal to 3 mm.

[0100] For example, the distance between the bottom of the abutment portion 410 and the second contact portion 350 can be set within any distance range of 0.5 mm-1 mm, 1 mm-1.5 mm, 1.5 mm-2 mm, 2 mm-2.5 mm, and 2.5 mm-3 mm, so as to reduce the friction between the abutment portion 410 and the second contact portion 350, reduce the wear of the abutment portion 410, and reduce the possibility of extrusion deformation and the like of the abutment portion 410.

[0101] Furthermore, the distance between the bottom of the abutting portion 410 and the second contact portion 350 can be determined according to parameters such as the thickness of the door body 200, the height of the door body 200, and the assembly space of the gravity self-closing structure. For example, when the assembly space of the gravity self-closing structure is larger, the distance between the bottom of the abutting portion 410 and the second contact portion 350 can be increased accordingly, and the smaller the distance between the bottom of the abutting portion 410 and the second contact portion 350, the more compact the position between the fixed part 300 and the movable part 400, and the smaller the assembly space required for the gravity self-closing structure.

[0102] The positions of the inclined portion 340 and the second contact portion 350 may be adjusted according to the opening angle of the door body 200. For example, the opening angle of the door body 200 There may be a first setting angle, a second setting angle and a third setting angle which decrease in sequence. When the second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 340. When the third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 340 .

[0103] For example, when the opening angle of the door body 200 is When set to 130 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is Set to: When the abutting portion 410 abuts against the first contact portion 330, when the opening angle of the door body 200 When the door body 200 is opened The second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 340, and when the opening angle of the door body 200 is When the door body 200 is opened The third setting angle is set, and the abutting portion 410 abuts against the second end of the inclined portion 340; when the opening angle of the door body 200 is Set to: When the contact portion 410 contacts the second contact portion 350 .

[0104] Phase 1

[0105] When the door body 200 is rotated to close, the opening angle of the door body 200 is When set to 130 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is When the abutting portion 410 abuts against the first contact portion 330, and the abutting portion 410 moves from the end of the first contact portion 330 away from the inclined portion 340 toward the inclined portion 340, when the opening angle of the door body 200 is degrees, the door body 200 is at a second set angle, and the abutting portion 410 can move to the first end of the inclined portion 340.

[0106] Phase II

[0107] When the door body opens at an angle of 200 Set to: When the abutting portion 410 abuts against the inclined portion 340, the door body 200 can drive the abutting portion 410 to move downward under the action of gravity, so that the abutting portion 410 moves from the first end of the inclined portion 340 to the second end of the inclined portion 340, and the movable member 400 drives the door body 200 to move downward through the abutting portion 410; when the door body 200 is opened at an angle of When the door body 200 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 340;

[0108] Phase 3

[0109] When the door body opens at an angle of 200 Set to: , the abutting portion 410 abuts against the second contact portion 350 to drive the abutting portion 410 to move toward the end of the second contact portion 350 away from the inclined portion 340; when the opening angle of the door body 200 is When the abutting portion 410 abuts against the second contact portion 350, the door seal located on the rear wall of the door body 200 fits with the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100.

[0110] It should be noted that if the user pushes the door body 200 to rotate and close the door body 200, the door body 200 will move downward in the process of the abutting portion 410 abutting against the first contact portion 330, the inclined portion 340 and the second contact portion 350 in sequence, thereby causing the user to have a certain sense of frustration. The vertical movement distance of the door body 200 can be changed by adjusting the inclination angle of the inclined portion 340 and the height difference between the first contact portion 330 and the second contact portion 350, thereby reducing the user's sense of frustration in the process of closing the door and improving the user's experience.

[0111] For example, the first set angle, the second set angle and the third set angle of the door body 200 can be changed by adjusting the horizontal position and length of the first contact portion 330, the inclined portion 340 and the second contact portion 350 to change the first stage, the second stage and the third stage time during the process of the door body 200 rotating and closing.

[0112] The angle corresponding to the first contact portion 330 is equal to the difference between the first setting angle and the second setting angle. The angle corresponding to the inclined portion 340 is equal to the difference between the second setting angle and the third setting angle. The angle corresponding to the second contact portion 350 is equal to the third setting angle.

[0113] For example, during the process of the door body 200 rotating and closing, when the length of the first contact portion 330 increases, the time for the contact portion 410 to move in the horizontal direction at the first contact portion 330 increases. When the length of the inclined portion 340 in the horizontal direction increases, the time for the contact portion 410 to move in the horizontal and vertical directions at the inclined portion 340 increases, and the difference between the second set angle and the third set angle increases; when the length of the second contact portion 350 increases, the time for the contact portion 410 to move in the horizontal direction at the first contact portion 330 increases.

[0114] In addition, the position of the second set angle of the door body 200 can be changed by adjusting the position of the first end of the inclined portion 340 in the horizontal direction, and the position of the third set angle of the door body 200 can be adjusted by adjusting the position of the second end of the inclined portion 340 in the horizontal direction to determine the movement time of the door body 200 in the vertical direction.

[0115] The angle corresponding to the inclined portion 340 (i.e., the difference between the second setting angle and the third setting angle) can be set to be greater than or equal to 5 degrees and less than or equal to 20 degrees. For example, the angle corresponding to the inclined portion 340 (i.e., the difference between the second setting angle and the third setting angle) can be set within any angle range of 5 degrees to 10 degrees, 10 degrees to 15 degrees, and 15 degrees to 20 degrees to reduce the user's sense of frustration during the door closing process.

[0116] In some embodiments, in the horizontal direction, the length of the first contact portion 330 may be equal to the length of the second contact portion 350. Alternatively, in the horizontal direction, the length of the first contact portion 330 may be greater than the length of the second contact portion 350, and the length of the first contact portion 330 is greater than the length of the inclined portion 340.

[0117] For example, in the horizontal direction, the length of the first contact portion 330 is greater than or equal to three times the length of the inclined portion 340, that is, the difference between the first set angle and the second set angle is greater than or equal to three times the difference between the second set angle and the third set angle.

[0118] For example, when the opening angle of the door body 200 is When set to 130 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is Set to: When the opening angle of the door body 200 is When the door body 200 is opened The second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 340 , and the difference between the first setting angle and the second setting angle is 110 degrees.

[0119] When the door body opens at an angle of 200 When the door body 200 is opened The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 340, and the difference between the second setting angle and the third setting angle is 15 degrees. Set to: When the contact portion 410 contacts the second contact portion 350 .

[0120] Phase 1

[0121] When the door body 200 is rotated to close, the opening angle of the door body 200 is When set to 130 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is When the abutting portion 410 abuts against the first contact portion 330, and the abutting portion 410 moves from the end of the first contact portion 330 away from the inclined portion 340 toward the inclined portion 340, when the opening angle of the door body 200 is degrees, the door body 200 is at a second set angle, and the abutting portion 410 can move to the first end of the inclined portion 340.

[0122] Phase II

[0123] When the door body opens at an angle of 200 Set to: When the abutting portion 410 abuts against the inclined portion 340, the door body 200 can drive the abutting portion 410 to move downward under the action of gravity, so that the abutting portion 410 moves from the first end of the inclined portion 340 to the second end of the inclined portion 340, and the movable member 400 drives the door body 200 to move downward through the abutting portion 410; when the door body 200 is opened at an angle of =5 degrees, the door body 200 is at a third setting angle, and the abutting portion 410 moves to the second end of the inclined portion 340;

[0124] Phase 3

[0125] When the door body opens at an angle of 200 Set to: , the abutting portion 410 abuts against the second contact portion 350 to drive the abutting portion 410 to move toward the end of the second contact portion 350 away from the inclined portion 340. When the abutting portion 410 abuts against the second contact portion 350, the door seal located on the rear wall of the door body 200 fits with the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100.

[0126] It should be noted that when the contact portion 410 has a certain width in the horizontal direction, the contact portion 410 may correspond to a part of the central angle. For example, when the central angle corresponding to the contact portion 410 is 5 degrees, and the angle corresponding to the second contact portion 350 (i.e., the third set angle) is 5 degrees, when the contact portion 410 moves to the second end of the inclined portion 340, the contact portion 410 moves to the second contact portion 350, and the contact portion 410 does not move on the second contact portion 350.

[0127] For example, when the opening angle of the door body 200 is When set to 30 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is Set to: When the abutting portion 410 abuts against the first contact portion 330, when the opening angle of the door body 200 When the door body 200 is opened The second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 340 , and the difference between the first setting angle and the second setting angle is 10 degrees.

[0128] When the door body opens at an angle of 200 When the door body 200 is opened The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 340, and the difference between the second setting angle and the third setting angle is 15 degrees. Set to: When the contact portion 410 contacts the second contact portion 350 .

[0129] Phase 1

[0130] When the door body 200 is rotated to close, the opening angle of the door body 200 is When set to 30 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is When the abutting portion 410 abuts against the first contact portion 330, the abutting portion 410 moves from the end of the first contact portion 330 away from the inclined portion 340 toward the inclined portion 340. degrees, the door body 200 is at a second set angle, and the abutting portion 410 can move to the first end of the inclined portion 340.

[0131] Phase II

[0132] When the door body opens at an angle of 200 Set to: When the abutment portion 410 abuts against the inclined portion 340, the door body 200 can drive the abutment portion 410 to move downward under the action of gravity, so that the abutment portion 410 moves from the first end of the inclined portion 340 to the second end of the inclined portion 340, and the movable part 400 drives the door body 200 to move downward through the abutment portion 410.

[0133] When the door body opens at an angle of 200 degrees, the door body 200 is at a third set angle, the abutment portion 410 moves to the second end of the inclined portion 340, the bottom surface of the abutment portion 410 is completely in contact with the second contact portion 350, and the door seal located on the rear wall of the door body 200 is in contact with the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100.

[0134] It should be noted that when the bottom of the abutment portion 410 has no width in the horizontal direction, for example, the abutment portion 410 can be set as a triangular abutment portion 410, the first surface of the abutment portion 410 is arranged parallel to the inclined portion 340, and the second surface of the abutment portion 410 is arranged vertically; then the angle of the second contact portion 350 can be set to 0 degrees, that is, the second contact portion 350 can be not set, and the third set angle can be equal to 0 degrees.

[0135] For example, when the opening angle of the door body 200 is When set to 30 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is Set to: When the opening angle of the door body 200 is When the door body 200 is opened The second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 340 , and the difference between the first setting angle and the second setting angle is 10 degrees.

[0136] When the door body opens at an angle of 200 When the door body 200 is opened The third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 340, and the first surface of the abutting portion 410 completely fits the inclined portion 340, and the difference between the second setting angle and the third setting angle is 20 degrees.

[0137] Phase 1

[0138] When the door body 200 is rotated to close, the opening angle of the door body 200 is When set to 30 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is When the abutting portion 410 abuts against the first contact portion 330, and the abutting portion 410 moves from the end of the first contact portion 330 away from the inclined portion 340 toward the inclined portion 340, when the opening angle of the door body 200 is degrees, the door body 200 is at a second set angle, and the abutting portion 410 can move to the first end of the inclined portion 340.

[0139] Phase II

[0140] When the door body opens at an angle of 200 Set to: When the abutment portion 410 abuts against the inclined portion 340, the door body 200 can drive the abutment portion 410 to move downward under the action of gravity, so that the abutment portion 410 moves from the first end of the inclined portion 340 to the second end of the inclined portion 340, and the movable part 400 drives the door body 200 to move downward through the abutment portion 410.

[0141] When the door body opens at an angle of 200 degrees, the door body 200 is at a third set angle, the abutment portion 410 moves to the second end of the inclined portion 340, and the first surface of the abutment portion 410 is completely fitted to the inclined portion 340, and the door seal located on the rear wall of the door body 200 is fitted to the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100.

[0142] For example, when the opening angle of the door body 200 is When the door body 200 is opened The first setting angle is set. When the opening angle of the door body 200 is When the door body 200 is opened The second setting angle is set. When the opening angle of the door body 200 is When the door body 200 is opened Set to the third setting angle.

[0143] At this time, on the surface of the fixed part 300 facing the movable part 400, the central angle corresponding to the first contact portion 330, the inclined portion 340 and the second contact portion 350 is set to 115 degrees, that is, in the process of the abutment portion 410 moving from the end of the first contact portion 330 away from the second contact portion 350 through the inclined portion 340 to the end of the second contact portion 350 away from the first contact portion 330, the rotation angle of the door body 200 is 115 degrees.

[0144] For example, when the opening angle of the door body 200 is When the door body 200 is opened The first setting angle is set. When the opening angle of the door body 200 is When the door body 200 is opened The second setting angle is set. When the opening angle of the door body 200 is When the door body 200 is opened Set to the third setting angle.

[0145] At this time, on the surface of the fixed part 300 facing the movable part 400, the central angle corresponding to the first contact portion 330, the inclined portion 340 and the second contact portion 350 is set to 15 degrees, that is, in the process of the abutment portion 410 moving from the end of the first contact portion 330 away from the second contact portion 350 through the inclined portion 340 to the end of the second contact portion 350 away from the first contact portion 330, the rotation angle of the door body 200 is 15 degrees.

[0146] For example, when the opening angle of the door body 200 is When the door body 200 is opened The first setting angle is set. When the opening angle of the door body 200 is When the door body 200 is opened The second setting angle is set. When the opening angle of the door body 200 is When the door body 200 is opened Set to the third setting angle.

[0147] At this time, on the surface of the fixed part 300 facing the movable part 400, the central angle corresponding to the first contact portion 330, the inclined portion 340 and the second contact portion 350 is set to 30 degrees, that is, in the process of the abutment portion 410 moving from the end of the first contact portion 330 away from the second contact portion 350 through the inclined portion 340 to the end of the second contact portion 350 away from the first contact portion 330, the rotation angle of the door body 200 is 30 degrees.

[0148] It should be noted that the second setting angle can be set to be greater than or equal to 8 degrees and less than or equal to 25 degrees. For example, the second setting angle can be set within any angle range of 8 degrees to 10 degrees, 10 degrees to 12 degrees, 12 degrees to 14 degrees, 14 degrees to 16 degrees, 16 degrees to 18 degrees, 18 degrees to 20 degrees, 20 degrees to 22 degrees, and 22 degrees to 25 degrees.

[0149] When the door body 200 is at the third setting angle, the door body 200 may not be in the closed state. Alternatively, the door body 200 may not be in the closed state.

[0150] The third setting angle can be set to be greater than or equal to -5 degrees and less than or equal to 10 degrees, and the third setting angle is smaller than the second setting angle. For example, the third setting angle can be set within any angle range of -5 degrees to 0 degrees, 0 degrees to 5 degrees, 5 degrees to 8 degrees, 8 degrees to 10 degrees, 10 degrees to 12 degrees, 12 degrees to 15 degrees, 15 degrees to 18 degrees, and 18 degrees to 20 degrees.

[0151] During the process of rotating the door body 200 to open or close, the user pulls or pushes the door body 200 to rotate around the first hinge axis 310 and the second hinge axis 320. When the door body 200 rotates to between the second set angle and the third set angle, the door body 200 moves in the vertical direction relative to the fixed part 300 driven by the movable part 400.

[0152] During the process of rotating and opening the door body 200 , the door body 200 can rotate from the third setting angle toward the second setting angle, the opening angle of the door body 200 gradually increases, and the door body 200 moves upward in the vertical direction driven by the abutment portion 410 .

[0153] When the third setting angle is smaller, the user can feel the rising process of the door body 200 earlier during the door opening process; when the second setting angle is smaller, the user can feel the end of the rising process of the door body 200 earlier during the door opening process; and when the difference between the second setting angle and the third setting angle is smaller, the user can feel the shorter the rising process of the door body 200 is during the door opening process.

[0154] During the process of the door body 200 rotating and closing, the door body 200 can rotate from the second setting angle toward the third setting angle, the opening angle of the door body 200 gradually decreases, and the door body 200 drives the abutment portion 410 to move downward in the vertical direction.

[0155] When the second setting angle is smaller, the user can feel the descending process of the door body 200 earlier during the process of closing the door; when the third setting angle is smaller, the user can feel the end of the descending process of the door body 200 earlier during the process of opening the door; and the smaller the difference between the second setting angle and the third setting angle, the shorter the descending process of the door body 200 felt by the user during the process of opening the door.

[0156] In some embodiments, the refrigerator may be arranged in a cabinet. When the door body 200 is in a closed state, in a built-in refrigerator in which the front wall of the door body 200 is flush with the front end of the cabinet wall, after the door body 200 is opened until the front wall of the door and the cabinet wall are in the same plane (the door body 200 is opened approximately 90°), interference occurs between the front wall of the door and the cabinet wall, and the door body 200 cannot be opened further, that is, the maximum opening angle of the door body 200 is 90°, which affects the user's access to items in the refrigeration device.

[0157] Exemplarily, during the process of rotating and opening the door body 200, the movement trajectory of the door body 200 can be controlled to include the following stages: while the door body 200 continues to open from a preset opening angle to a maximum opening angle, the door body 200 is driven to move from the pivot side to the opening side, thereby avoiding interference between the door body 200 and the cabinet wall when the door body 200 is further opened, thereby increasing the opening angle of the door body 200 (greater than 120°) to facilitate users to store and retrieve items.

[0158] In some embodiments, the hinge assembly can be configured such that before the door body 200 rotates and opens to a preset opening angle, the door body 200 first moves toward the opening side and then moves toward the pivoting side while rotating and opening.

[0159] During the process of rotating and opening the door body 200, the door body 200 first moves toward the opening side, that is, gradually moves away from the cabinet wall on the pivot side, which can increase the distance between the end of the door body 200 on the pivot side and the cabinet wall on the pivot side, and avoid the cabinet wall. On the one hand, even if there is no gap between the built-in refrigerator and the cabinet, interference between the door body 200 and the cabinet wall can be avoided during the door opening process. On the other hand, it can provide more space for the door body 200 to move toward the pivot side in the subsequent further opening process, avoiding interference between the door body 200 and the cabinet wall during the opening process.

[0160] It is easy to understand that after the door body 200 moves to the opening side, it moves to the pivoting side to further open the door body 200, and can expose a larger area of ​​the storage space in the box body 100 to the user, making it easier for the user to take items.

[0161] It should be noted that the pivot side mentioned above refers to the side of the built-in refrigerator corresponding to the rotation end of the door body 200. The opening side mentioned above refers to the side of the built-in refrigerator corresponding to the free end of the door body 200.

[0162] Reference Figure 5-Figure 10 ,as well as Figure 11-Figure 16 In some embodiments, the number of hinge axes is set to two. The two hinge axes are respectively set to be a first hinge axis 310 and a second hinge axis 320. The first hinge axis 310 is closer to the second end of the track groove 420 relative to the second hinge axis 320, and the second hinge axis 320 is closer to the first end of the track groove 420 relative to the first hinge axis 310.

[0163] When the door 200 is in a closed state, the second hinge shaft 320 may be located at the first end of the track groove 420, and the first hinge shaft 310 and the second hinge shaft 320 are arranged at intervals. When the door 200 is in an open state, the first hinge shaft 310 may be located at the second end of the track groove 420.

[0164] During the process of rotating and opening the door body 200, when the first hinge shaft 310 and the second hinge shaft 320 are in the first slot section and move toward the second slot section, the hinge shaft is guided to move along the track slot 420 close to the opening side to drive the door body 200 to move toward the opening side first.

[0165] When the door body 200 rotates open until the second hinge shaft 320 is located in the first slot section and the first hinge shaft 310 is located in the second slot section, and continues to rotate open, the first hinge shaft 310 is in the second slot section and moves toward the third slot section, guiding the hinge shaft to move along the track groove 420 toward the end of the track groove 420 close to the pivot side, so as to drive the door body 200 to move toward the pivot side.

[0166] When the door body 200 rotates open until the second hinge shaft 320 is located in the second slot section and the first hinge shaft 310 is located in the third slot section, and continues to rotate open, the first hinge shaft 310 moves in the third slot section and away from the second slot section, guiding the hinge shaft to move along the track groove 420 toward the end of the track groove 420 close to the opening side, thereby driving the door body 200 to move toward the opening side.

[0167] It should be noted that the track groove 420 may be provided with a first inflection point P and a second inflection point Q which are arranged at intervals. The first inflection point P may be provided between the first groove section and the second groove section, and the second inflection point Q may be provided between the second groove section and the third groove section.

[0168] In a plane perpendicular to the door rear wall and the door side walls, for example, in the upper top surface or lower bottom surface of the door body 200, a straight line parallel to the door rear wall can be used as the first reference line, and the first reference line can be gradually moved from the door rear wall toward the door front wall. The position where the first reference line is tangent to the trajectory groove 420 can be set as the first inflection point P of the trajectory groove 420.

[0169] In a plane perpendicular to the door rear wall and the door side walls, for example, in the upper top surface or lower bottom surface of the door body 200, a straight line parallel to the door side wall can be used as a second reference line, and the second reference line is gradually moved from the door side wall toward the middle of the door body 200. The position where the second reference line is tangent to the trajectory groove 420 can be set as the second inflection point Q of the trajectory groove 420.

[0170] The curvature of the first groove section may be smaller than that of the second groove section, and the curvature of the second groove section may be larger than that of the third groove section. The first end of the track groove 420 is close to the door front wall relative to the first inflection point P, and the first end of the first groove section is far away from the door side wall relative to the first inflection point P. The first inflection point P is close to the door rear wall relative to the second inflection point Q, and the first inflection point P is far away from the door side wall relative to the second inflection point Q. The second inflection point Q is far away from the door front wall relative to the second end of the track groove 420, and the second inflection point Q is close to the door side wall relative to the second end of the track groove 420.

[0171] In some embodiments, during the process of the door body 200 rotating to open or rotating to close, the moving directions of the first hinge shaft 310 and the second hinge shaft 320 can be determined according to the track grooves 420 at corresponding positions.

[0172] For example, when the first hinge axis 310 and the second hinge axis 320 move in the track groove 420, the first hinge axis 310 and the second hinge axis 320 will contact the inner wall of the track groove 420, and the tangent direction of the track groove 420 contacting the first hinge axis 310 can be set as the moving direction of the first hinge axis 310, and the tangent direction of the track groove 420 contacting the second hinge axis 320 can be set as the moving direction of the second hinge axis 320.

[0173] For example, when the first hinge axis 310 and the second hinge axis 320 move in the first slot section of the track slot 420, the moving direction of the first hinge axis 310 is relatively close to the moving direction of the second hinge axis 320. When the first hinge axis 310 moves in the first slot section of the track slot 420 and the second hinge axis 320 moves in the second slot section of the track slot 420, the angle formed by the moving direction of the first hinge axis 310 and the moving direction of the second hinge axis 320 is relatively large.

[0174] During the process of the door body 200 rotating and closing, the first hinge shaft 310 and the second hinge shaft 320 can move from the second end of the track groove 420 to the first end of the track groove 420 in the track groove 420. The abutting portion 410 can move from the first contact portion 330 to the first end of the inclined portion 340, then move obliquely downward from the first end of the inclined portion 340 to the second end of the inclined portion 340, and then move to the second contact portion 350 through the second end of the inclined portion 340, thereby realizing the closing process of the door body 200.

[0175] It is easy to understand that when the first hinge axis 310 and the second hinge axis 320 move to the first inflection point P, the speed of the first hinge axis 310 and the second hinge axis 320 changes greatly in the horizontal direction, the movable part 400 is subjected to a large force in the horizontal direction, and the movement of the movable part 400 is unstable.

[0176] At least one of the first hinge axis 310 and the second hinge axis 320 is located between the first end of the track groove 420 and the first inflection point P. When the first hinge axis 310 and the second hinge axis 320 move a unit length in the track groove 420, the horizontal rotation angle of the door body 200 is small, the change in speed of the first hinge axis 310 and the second hinge axis 320 in the horizontal direction is small, the movable part 400 is subjected to less force in the horizontal direction, and the movement process of the door body 200 is more stable.

[0177] The "unit length" may be used to refer to the distance that the first hinge shaft 310 and the second hinge shaft 320 move in the track groove 420. For example, the "unit length" may be a portion of the length of the center line of the track groove 420 or the side wall of the track groove 420, and the rotation angle of the door body 200 may be obtained by measuring the angle between the rear wall of the door body 200 and the box body 100.

[0178] It is easy to understand that when at least one of the first hinge axis 310 and the second hinge axis 320 is located between the first end of the track groove 420 and the first inflection point P, for example, the first hinge axis 310 and the second hinge axis 320 are located between the first end of the track groove 420 and the first inflection point P, the rotation angle of the door body 200 is small for each same unit length of movement, relative to the case where the first hinge axis 310 and the second hinge axis 320 are located at other positions of the track groove 420.

[0179] In some embodiments, the opening angle of the door body 200 There may be a first setting angle, a second setting angle and a third setting angle which decrease in sequence. When the second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 340. When the third setting angle is set, the abutting portion 410 abuts against the second end of the inclined portion 340 .

[0180] During the process of rotating and closing the door body 200, the first hinge shaft 310 and the second hinge shaft 320 can move in the track groove 420 from the second end of the track groove 420 toward the first end of the track groove 420, and the first hinge shaft 310 and the second hinge shaft 320 can move from the third groove section toward the second groove section and the first groove section.

[0181] When the door body opens at an angle of 200 When the first setting angle is set, the abutment portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. The first hinge axis 310 can be located at the second end of the track groove 420, and the second hinge axis 320 can be located in the third groove section, or the second hinge axis 320 can be located in the second groove section.

[0182] When the door body opens at an angle of 200 When the second setting angle is set, the abutment portion 410 is located at the first end of the inclined portion 340. The first hinge shaft 310 can be located in the first slot section, or the first hinge shaft 310 can be located in the second slot section. The second hinge shaft 320 can be located in the first slot section to make the process of rotating and closing the door body 200 more stable.

[0183] When the door body opens at an angle of 200 When the third setting angle is set, the abutment portion 410 is located at the second end of the inclined portion 340. The first hinge axis 310 can be located in the first slot section. The second hinge axis 320 can be located at the second end of the track slot 420, and the first hinge axis 310 and the second hinge axis 320 are arranged at intervals.

[0184] It is easy to understand that during the process of the door body 200 rotating and closing, when the opening angle of the door body 200 is When the angle is greater than the third setting angle and less than the second setting angle, the abutment portion 410 is located on the inclined portion 340 and moves obliquely downward from the first end of the inclined portion 340 to the second end of the inclined portion 340 , and the door body 200 moves downward driven by the abutment portion 410 and the inclined portion 340 .

[0185] The first hinge shaft 310 and the second hinge shaft 320 move in the first groove section of the track groove 420, and the moving direction of the first hinge shaft 310 is relatively close to the moving direction of the second hinge shaft 320, so that the horizontal movement of the door body 200 driven by the first hinge shaft 310 and the second hinge shaft 320 is more stable, thereby reducing the sense of frustration of the door body 200 during the rotation and closing process.

[0186] In some embodiments, the first slot section may be a straight slot section. When the first hinge shaft 310 and the second hinge shaft 320 move in the first slot section of the track slot 420 , the moving direction of the first hinge shaft 310 is the same as the moving direction of the second hinge shaft 320 .

[0187] When the door body 200 rotates to close, the contact portion 410 is located at the inclined portion 340 and moves obliquely downward from the first end of the inclined portion 340 to the second end of the inclined portion 340. When the door body 200 rotates to open, the contact portion 410 is located at the inclined portion 340 and moves obliquely upward from the second end of the inclined portion 340 to the first end of the inclined portion 340, so that the descending process of the door body 200 is more stable.

[0188] For example, when the opening angle of the door body 200 is When set to 130 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is Set to: When the contact portion 410 contacts the first contact portion 330 .

[0189] When the door body opens at an angle of 200 When the door body 200 is opened When the second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 340, the first hinge axis 310 can be located at the first inflection point P, and the second hinge axis 320 can be located in the first groove section. When the door body 200 is opened The third setting angle is set, and the abutting portion 410 abuts against the second end of the inclined portion 340; when the opening angle of the door body 200 is Set to: When the contact portion 410 contacts the second contact portion 350 .

[0190] When the door body opens at an angle of 200 When it is greater than the third set angle and less than the second set angle, the first hinge shaft 310 and the second hinge shaft 320 move in the first groove section of the track groove 420, so that the door body 200 can move more stably in the horizontal direction driven by the first hinge shaft 310 and the second hinge shaft 320.

[0191] Phase 1

[0192] When the door body 200 is rotated to close, the opening angle of the door body 200 is When set to 130 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is When the abutting portion 410 abuts against the first contact portion 330, and the abutting portion 410 moves from the end of the first contact portion 330 away from the inclined portion 340 toward the inclined portion 340, when the opening angle of the door body 200 is degrees, the door body 200 is at a second set angle, and the abutting portion 410 can move to the first end of the inclined portion 340.

[0193] The first hinge axis 310 and the second hinge axis 320 can move in the trajectory groove 420 from the second end of the trajectory groove 420 toward the first end of the trajectory groove 420, the second hinge axis 320 can move through the second groove section to the first groove section, and the first hinge axis 310 can move from the third groove section through the second groove section to the first inflection point P.

[0194] It is easy to understand that when the door body 200 is opened at an angle When the first hinge shaft 310 and the second hinge shaft 320 are moved at a large angle, the first hinge shaft 310 and the second hinge shaft 320 are subjected to a large force. The abutting portion 410 abuts against the first contact portion 330, so that the door body 200 only needs to move in the horizontal direction, and does not need to move in the vertical direction, making the rotation process of the door body 200 more stable.

[0195] Phase II

[0196] When the door body opens at an angle of 200 Set to: When the abutting portion 410 abuts against the inclined portion 340, the door body 200 can drive the abutting portion 410 to move downward under the action of gravity, so that the abutting portion 410 moves from the first end of the inclined portion 340 to the second end of the inclined portion 340, and the movable member 400 drives the door body 200 to move downward through the abutting portion 410; when the door body 200 is opened at an angle of When the door body 200 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 340;

[0197] The first hinge shaft 310 and the second hinge shaft 320 move in the first groove section of the track groove 420, and the moving direction of the first hinge shaft 310 is relatively close to the moving direction of the second hinge shaft 320, so that the door body 200 can move more stably in the horizontal direction driven by the first hinge shaft 310 and the second hinge shaft 320.

[0198] Phase 3

[0199] When the door body opens at an angle of 200 Set to: , the abutting portion 410 abuts against the second contact portion 350 to drive the abutting portion 410 to move toward the end of the second contact portion 350 away from the inclined portion 340; when the opening angle of the door body 200 is When the abutting portion 410 abuts against the second contact portion 350, the door seal located on the rear wall of the door body 200 fits with the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100.

[0200] For example, when the opening angle of the door body 200 is When set to 130 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is Set to: When the contact portion 410 contacts the first contact portion 330 .

[0201] When the door body opens at an angle of 200 When the door body 200 is opened When the second setting angle is set, the abutting portion 410 abuts against the first end of the inclined portion 340, the first hinge shaft 310 can be located in the first groove section, and the second hinge shaft 320 can be located in the first groove section. When the door body 200 is opened The third setting angle is set, and the abutting portion 410 abuts against the second end of the inclined portion 340; when the opening angle of the door body 200 is Set to: When the contact portion 410 contacts the second contact portion 350 .

[0202] When the door body opens at an angle of 200 When it is greater than the third set angle and less than the second set angle, the first hinge shaft 310 and the second hinge shaft 320 move in the first groove section of the track groove 420, so that the door body 200 can move more stably in the horizontal direction driven by the first hinge shaft 310 and the second hinge shaft 320.

[0203] Phase 1

[0204] When the door body 200 is rotated to close, the opening angle of the door body 200 is When set to 130 degrees, the opening angle of the door body 200 The first setting angle is set, and the abutting portion 410 is located at an end of the first contact portion 330 away from the inclined portion 340. When the opening angle of the door body 200 is When the abutting portion 410 abuts against the first contact portion 330, and the abutting portion 410 moves from the end of the first contact portion 330 away from the inclined portion 340 toward the inclined portion 340, when the opening angle of the door body 200 is degrees, the door body 200 is at a second set angle, and the abutting portion 410 can move to the first end of the inclined portion 340.

[0205] The first hinge axis 310 and the second hinge axis 320 can move in the trajectory groove 420 from the second end of the trajectory groove 420 toward the first end of the trajectory groove 420, the second hinge axis 320 can move through the second groove section to the first groove section, and the first hinge axis 310 can move from the third groove section through the second groove section to the first groove section.

[0206] It is easy to understand that when the door body 200 is opened at an angle When the first hinge shaft 310 and the second hinge shaft 320 are moved at a large angle, the first hinge shaft 310 and the second hinge shaft 320 are subjected to a large force. The abutting portion 410 abuts against the first contact portion 330, so that the door body 200 only needs to move in the horizontal direction, and does not need to move in the vertical direction, making the rotation process of the door body 200 more stable.

[0207] Phase II

[0208] When the door body opens at an angle of 200 Set to: When the abutting portion 410 abuts against the inclined portion 340, the door body 200 can drive the abutting portion 410 to move downward under the action of gravity, so that the abutting portion 410 moves from the first end of the inclined portion 340 to the second end of the inclined portion 340, and the movable member 400 drives the door body 200 to move downward through the abutting portion 410; when the door body 200 is opened at an angle of When the door body 200 is at a third set angle, the abutting portion 410 moves to the second end of the inclined portion 340;

[0209] The first hinge shaft 310 and the second hinge shaft 320 move in the first groove section of the track groove 420, and the moving direction of the first hinge shaft 310 is relatively close to the moving direction of the second hinge shaft 320, so that the door body 200 can move more stably in the horizontal direction driven by the first hinge shaft 310 and the second hinge shaft 320.

[0210] Phase 3

[0211] When the door body opens at an angle of 200 Set to: , the abutting portion 410 abuts against the second contact portion 350 to drive the abutting portion 410 to move toward the end of the second contact portion 350 away from the inclined portion 340; when the opening angle of the door body 200 is When the abutting portion 410 abuts against the second contact portion 350, the door seal located on the rear wall of the door body 200 fits with the front end surface of the box body 100 to effectively seal the connection between the door body 200 and the box body 100.

[0212] By way of example, the abutment portion 410 may be provided with a first abutment surface 411 and a second abutment surface 412 that are connected to each other, the first abutment surface 411 may be arranged parallel to the horizontal plane, the first abutment surface 411 may be parallel to the first contact portion 330 and the second contact portion 350, the second abutment surface 412 may be arranged inclined relative to the vertical direction, the second abutment surface 412 may be arranged parallel to the inclined portion 340, so as to make the movement process of the abutment portion 410 more stable, and the connection position of the first abutment surface 411 and the second abutment surface 412 may be used to represent the bottom end position of the abutment portion 410.

[0213] The following describes the movement process of the abutting portion 410 by taking the bottom of the abutting portion 410 abutting against the first contact portion 330 as an example.

[0214] For example, during the process of rotating and opening the door body 200, the first abutting surface 411 of the abutting portion 410 abuts against the second contact portion 350, so that the abutting portion 410 can move horizontally from the second contact portion 350 to the second end of the inclined portion 340, and then the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 340, and the abutting portion 410 moves obliquely upward from the second end of the inclined portion 340 to the first end of the inclined portion 340, and then moves to the first contact portion 330 through the first end of the inclined portion 340, so that the first abutting surface 411 of the abutting portion 410 abuts against the first contact portion 330, and the first abutting surface 411 can move in the horizontal direction relative to the first contact surface, thereby realizing the opening process of the door body 200.

[0215] During the process of rotating and closing the door body 200, the first abutting surface 411 of the abutting portion 410 abuts against the first contact portion 330, and the abutting portion 410 can move horizontally from the first contact portion 330 to the first end of the inclined portion 340, and then the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 340, and the abutting portion 410 moves obliquely downward from the first end of the inclined portion 340 to the second end of the inclined portion 340, and then moves to the second contact portion 350 through the second end of the inclined portion 340, so that the first abutting surface 411 of the abutting portion 410 abuts against the second contact portion 350, and the first abutting surface 411 can move in the horizontal direction relative to the second contact surface, thereby realizing the closing process of the door body 200.

[0216] The first portion of the track groove 420 is located on the first abutting surface 411 , and the second portion of the track groove 420 is located on the second abutting surface 412 ; and / or, the first portion of the track groove 420 is located on the first abutting surface 411 , and the second portion of the track groove 420 is located on the second abutting surface 412 .

[0217] During the process of rotating and closing the door body 200, the first abutting surface 411 of the abutting portion 410 abuts against the first contact portion 330, and the abutting portion 410 can move horizontally from the first contact portion 330 to the first end of the inclined portion 340, and then the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 340, and the abutting portion 410 moves obliquely downward from the first end of the inclined portion 340 to the second end of the inclined portion 340, and the first hinge axis 310 and the second hinge axis 320 can be located in the first abutting surface 411 or the second abutting surface 412, thereby making the movement process of the movable part 400 more stable.

[0218] Exemplarily, the abutment portion 410 may also be provided with a third abutment surface 413, which is connected to one end of the second abutment surface 412 facing away from the first abutment surface 411, and the third abutment surface 413 may be arranged parallel to the first contact portion 330, that is, the third abutment surface 413 may be arranged parallel to the first abutment surface 411.

[0219] Alternatively, the movable member 400 further has the third abutting surface 413 , and the third abutting surface 413 is connected to the first end of the second abutting surface 412 . When the door body 200 is in the closed state, the third abutting surface 413 faces the first contact portion 330 .

[0220] The first part of the trajectory groove 420 is located at the first abutment surface 411, the second part of the trajectory groove 420 is located at the second abutment surface 412, and the third part of the trajectory groove 420 is located at the third abutment surface 413; and / or, the first part of the trajectory groove 420 is located at the first abutment surface 411, the second part of the trajectory groove 420 is located at the second abutment surface 412, and the third part of the trajectory groove 420 is located at the third abutment surface 413.

[0221] During the process of rotating and closing the door body 200, the first abutting surface 411 of the abutting portion 410 abuts against the first contact portion 330, and the abutting portion 410 can move horizontally from the first contact portion 330 to the first end of the inclined portion 340, and then the second abutting surface 412 of the abutting portion 410 abuts against the inclined portion 340, and the abutting portion 410 moves obliquely downward from the first end of the inclined portion 340 to the second end of the inclined portion 340, and the first hinge axis 310 and the second hinge axis 320 can be located in the first abutting surface 411 or the second abutting surface 412 or the third abutting surface 413, thereby making the movement process of the movable part 400 more stable.

[0222] During the process of the door body 200 rotating to open or rotate to close, when the abutting portion 410 is facing the second contact portion 350, the abutting portion 410 can also be spaced apart from the second contact portion 350, and there is a gap between the first abutting surface 411 of the abutting portion 410 and the second contact portion 350, and the third abutting surface 413 can abut against the first contact portion 330.

[0223] Alternatively, during the process of the door body 200 rotating to open or rotate to close, when the abutting portion 410 is directed toward the second contact portion 350, the abutting portion 410 can also abut against the second contact portion 350, the first abutting surface 411 abuts against the second contact portion 350, and the third abutting surface 413 can abut against the first contact portion 330, so that the movable part 400 can abut against the second contact portion 350 through the first abutting surface 411, and abut against the first contact portion 330 through the third abutting surface 413, thereby increasing the contact area between the abutting portion 410 and the fixed part 300, so that the movement process of the movable part 400 is more stable.

[0224] In some embodiments, in the hinge assembly located at the lower end of the door body 200, the first hinge axis 310 and the second hinge axis 320 can be arranged on the surface of the fixed part 300 facing the movable part 400, and the first hinge axis 310 and the second hinge axis 320 can both extend upward in the vertical direction.

[0225] At least one of the first hinge axis 310 and the second hinge axis 320 may be disposed between the first contact portion 330 and the inclined portion 340 , and the track groove 420 may be correspondingly disposed on a surface of the movable member 400 facing the fixed member 300 .

[0226] It should be noted that, in the extension direction of the first hinge axis 310 and the second hinge axis 320, when the first hinge axis 310 is arranged between the first contact portion 330 and the inclined portion 340, the orthographic projection of the first hinge axis 310 is located at the first contact portion 330, and the remaining part of the orthographic projection of the first hinge axis 310 is located at the inclined portion 340.

[0227] When the second hinge axis 320 is disposed between the first contact portion 330 and the inclined portion 340 , the orthographic projection of the second hinge axis 320 is located on the first contact portion 330 , and the remaining orthographic projection of the second hinge axis 320 is located on the inclined portion 340 .

[0228] In some embodiments, the first hinge axis 310 may be disposed at the first contact portion 330 , and the second hinge axis 320 may be disposed at the second contact portion 350 .

[0229] The inclined portion 340 can be configured as a long strip, the length direction of the inclined portion 340 can be parallel to the horizontal direction, and the width direction of the inclined portion 340 can be parallel to the inclined direction. The first end of the inclined portion 340 and the second end of the inclined portion 340 are spaced apart along the width direction of the inclined portion 340, thereby increasing the contact area between the inclined portion 340 and the abutting portion 410, making the movement process of the door body 200 more stable.

[0230] In the horizontal direction, the arrangement direction of the first hinge axis 310 and the second hinge axis 320 may be approximately perpendicular to the length direction of the inclined portion 340 .

[0231] During the process of the door body 200 rotating to open and rotating to close, when the first hinge shaft 310 and the second hinge shaft 320 move in the first slot section, the moving direction of the first hinge shaft 310 is relatively close to the moving direction of the second hinge shaft 320. The moving direction of the first hinge shaft 310 and the moving direction of the second hinge shaft 320 can be approximately equal to the arrangement direction of the first hinge shaft 310 and the second hinge shaft 320, and the moving direction of the first hinge shaft 310 and the moving direction of the second hinge shaft 320 can be approximately equal to the width direction of the inclined portion 340, so that the process of the door body 200 rotating to open and rotating to close is more stable.

[0232] For example, between the first contact portion 330 and the inclined portion 340, the plane where the first contact portion 330 is located can be used as a reference plane, the portion located on the reference plane is the first contact portion 330, and the portion whose height is lower than the reference plane is the inclined portion 340. The inclined portion 340 coincides with the reference plane to form a positioning line.

[0233] For example, when the first hinge axis 310 is disposed between the first contact portion 330 and the inclined portion 340, the positioning line may pass through the first hinge axis 310, or the positioning line may be tangent to or coincide with the edge of the first hinge axis 310. When the second hinge axis 320 is disposed between the first contact portion 330 and the inclined portion 340, the positioning line may pass through the second hinge axis 320, or the positioning line may be tangent to or coincide with the edge of the second hinge axis 320.

[0234] When the door body 200 is rotated to open or close, in the horizontal direction, the first hinge shaft 310 and the second hinge shaft 320 move relative to the track groove 420 along the extension direction of the track groove 420. In the vertical direction, when the movable member 400 drives the door body 200 to move in the vertical direction through the abutment portion 410, the fixed member 300 is relatively fixed to the door body 200, so that the first hinge shaft 310 and the second hinge shaft 320 move relative to the track groove 420 in the vertical direction.

[0235] For example, when the movable member 400 drives the door body 200 to move upward through the abutment portion 410, part of the first hinge shaft 310 extends out of the track groove 420, and the distance between the first hinge shaft 310 and the bottom surface of the track groove 420 increases. Part of the second hinge shaft 320 extends out of the track groove 420, and the distance between the second hinge shaft 320 and the bottom surface of the track groove 420 increases.

[0236] In some embodiments, the fixed member 300 includes a first contact portion 330, an inclined portion 340 and a second contact portion 350 that are connected to each other. The fixed member 300 contacts the movable member 400 through the first contact portion 330, the inclined portion 340 and the second contact portion 350. The first surface of the fixed member 300 faces the movable member 400, and the second surface of the fixed member 300 faces away from the movable member 400. The surfaces of the first contact portion 330, the inclined portion 340 and the second contact portion 350 that face the movable member 400 together form the first surface of the fixed member 300 to increase the contact area between the movable member 400 and the fixed member 300 and improve the stability of the contact between the movable member 400 and the fixed member 300.

[0237] The first contact portion 330 and the second contact portion 350 may be arranged in parallel in the horizontal direction, and the height difference between the first contact portion 330 and the second contact portion 350 in the vertical direction may be set to be greater than or equal to 1 mm and less than or equal to 5 mm.

[0238] For example, the height difference between the first contact portion 330 and the second contact portion 350 in the vertical direction can be set within any height difference range of 1 mm-1.5 mm, 1.5 mm-2 mm, 2 mm-2.5 mm, 2.5 mm-3 mm, 3 mm-3.5 mm, 3.5 mm-4 mm, 4 mm-4.5 mm, and 4.5 mm-5 mm to reduce the user's sense of frustration during the door closing process.

[0239] Alternatively, in some embodiments, at least one of the first contact portion 330 and the second contact portion 350 may also be tilted, and the tilting direction of the first contact portion 330 and the second contact portion 350 may be the same as or different from the tilting direction of the tilting portion 340, and the tilting angle of the first tilting portion 340 and the tilting angle of the second contact portion 350 may be smaller than or greater than the tilting angle of the tilting portion 340, so as to further improve the closing effect of the gravity self-closing structure.

[0240] The height difference between the first end of the inclined portion 340 and the second end of the inclined portion 340 in the vertical direction can be set to be greater than or equal to 1 mm and less than or equal to 5 mm. For example, the height difference between the first end of the inclined portion 340 and the second end of the inclined portion 340 in the vertical direction can be set within any height difference range of 1 mm-1.5 mm, 1.5 mm-2 mm, 2 mm-2.5 mm, 2.5 mm-3 mm, 3 mm-3.5 mm, 3.5 mm-4 mm, 4 mm-4.5 mm, and 4.5 mm-5 mm to reduce the user's sense of frustration during the door closing process.

[0241] It is easy to understand that the height difference between the first contact portion 330 and the second contact portion 350 in the vertical direction, and the height difference between the first end of the inclined portion 340 and the second end of the inclined portion 340 in the vertical direction can be equal to the moving distance of the door body 200 in the vertical direction during the rotation opening or rotation closing process.

[0242] The smaller the height difference between the first contact portion 330 and the second contact portion 350 in the vertical direction and the height difference between the first end of the inclined portion 340 and the second end of the inclined portion 340 in the vertical direction, the smaller the moving distance of the door body 200 in the vertical direction during the rotation opening or rotation closing process.

[0243] Moreover, the smaller the distance that the door body 200 moves in the vertical direction during the process of rotational opening or rotational closing, the less frustration the user feels during the process of opening and closing the door; the larger the distance that the door body 200 moves in the vertical direction during the process of rotational opening or rotational closing, the better the gravity self-closing effect of the door body 200, and the greater the force required for the user to open the door.

[0244] The smaller the inclination angle of the inclined portion 340 is, the smaller the frustration felt by the user during the door closing process. The inclination angle of the inclined portion 340 can be set to be less than or equal to 40 degrees. For example, the inclination angle of the inclined portion 340 can be set to any one of the inclination angle ranges of 10 degrees-15 degrees, 15 degrees-20 degrees, 20 degrees-25 degrees, 25 degrees-30 degrees, 30 degrees-35 degrees, and 35 degrees-40 degrees to reduce the frustration felt by the user during the door closing process.

[0245] The inclination angle of the inclined portion 340 can be determined based on the vertical height difference between the first end of the inclined portion 340 and the second end of the inclined portion 340 in the vertical direction, and the horizontal distance between the first end of the inclined portion 340 and the second end of the inclined portion 340 in the horizontal direction, that is, when the vertical height difference between the first end of the inclined portion 340 and the second end of the inclined portion 340 is constant, the greater the horizontal distance between the first end of the inclined portion 340 and the second end of the inclined portion 340, the smaller the inclination angle of the inclined portion 340; when the horizontal distance between the first end of the inclined portion 340 and the second end of the inclined portion 340 is constant, the greater the vertical height difference between the first end of the inclined portion 340 and the second end of the inclined portion 340, the greater the inclination angle of the inclined portion 340.

[0246] It should be noted that the first end of the inclined portion 340 can be determined by a reference plane of the plane where the first contact portion 330 is located. For example, between the first contact portion 330 and the inclined portion 340, the plane where the first contact portion 330 is located can be used as a reference plane, the portion located on the reference plane is the first contact portion 330, and the portion whose height is lower than the reference plane is the inclined portion 340. The inclined portion 340 and the reference plane overlap to form a positioning line, that is, the first end of the inclined portion 340 forms the above positioning line, and the position of the positioning line can be used to refer to the first end of the inclined portion 340.

[0247] The second end of the inclined portion 340 can be configured as follows: when the door body 200 is in a closed state, the horizontal plane where the bottom end of the abutment portion 410 disposed on the door body 200 is located is configured as a reference plane, and the intersection of the reference plane and the inclined portion 340 is the second end of the inclined portion 340; and the bottom end of the inclined portion 340 can be used to connect to the second contact portion 350.

[0248] It is easy to understand that when the length of the inclined portion 340 is longer, that is, when the door body 200 is in a closed state, the first part of the inclined portion 340 can be located above the reference surface, and the first part of the inclined portion 340 is used to contact the abutment portion 410; the second part of the inclined portion 340 can be located below the reference surface, and the second part of the inclined portion 340 can be used to connect structures such as the hinge plate 360, then the first end of the inclined portion 340 and the second end of the inclined portion 340 are both the first part of the inclined portion 340, and the second part of the inclined portion 340 will not be used to contact the abutment portion 410, so that the second end of the inclined portion 340 can be connected to the second contact portion 350 through the second part of the inclined portion 340.

[0249] The inclined portion 340 may be provided as a plane-type inclined portion 340 having a plane, and a first end of the plane-type inclined portion 340 may be directly connected to the first contact portion 330 .

[0250] Alternatively, the first end of the planar inclined portion 340 can also be connected to the first contact portion 330 by means of an arc transition or the like, and the planar inclined portion 340 can have the above-mentioned first and second parts connected to each other, the first part of the planar inclined portion 340 can be used to contact the abutment portion 410, and the second part of the planar inclined portion 340 can be used to connect to a hinge plate 360 ​​or other mounting base structure.

[0251] Alternatively, the bottom end of the planar inclined portion 340 can be used to form the second end of the planar inclined portion 340, that is, the bottom end of the planar inclined portion 340 can be used to connect to a mounting base structure such as a hinge plate 360, or the bottom end of the planar inclined portion 340 can also be used to connect to a second contact portion 350.

[0252] In some embodiments, the inclined portion 340 can also be set as an arc-shaped inclined portion 340, and the arc-shaped inclined portion 340 has an arc-shaped surface. The arc-shaped inclined portion 340 can be protruded away from the first contact portion 330, that is, from the first end of the arc-shaped inclined portion 340 to the second end of the arc-shaped inclined portion 340, the inclination angle of the arc-shaped inclined portion 340 gradually increases.

[0253] During the process of rotating and opening the door body 200, the abutment portion 410 needs to move from the second end of the arc-shaped inclined portion 340 to the first end of the arc-shaped inclined portion 340. Since the inclination angle of the arc-shaped inclined portion 340 close to the second end is relatively large, the process of moving the abutment portion 410 to the arc-shaped inclined portion 340 is more laborious, further improving the self-closing effect of the gravity self-closing structure.

[0254] Alternatively, the arc-shaped inclined portion 340 may also be arranged to be concave away from the first contact portion 330 , that is, the inclination angle of the arc-shaped inclined portion 340 gradually decreases from the first end of the arc-shaped inclined portion 340 to the second end of the arc-shaped inclined portion 340 .

[0255] During the process of rotating and opening the door body 200, the abutment portion 410 needs to move from the second end of the arc-shaped inclined portion 340 to the first end of the arc-shaped inclined portion 340. When the weight of the door body 200 is large or the inclination angle of the arc-shaped inclined portion 340 is large, the gravity self-closing effect of the gravity self-closing structure can be guaranteed. Since the inclination angle of the arc-shaped inclined portion 340 close to the second end is small, the process of moving the abutment portion 410 to the arc-shaped inclined portion 340 is more labor-saving, making it more convenient for the user to rotate and open the door body 200.

[0256] In some embodiments, the inclined portion 340 may also have multiple planes or multiple arcuate surfaces, or the inclined portion 340 may also have at least one plane and at least one arcuate surface, and both the planes and the arcuate surfaces are used to contact the abutting portion 410 .

[0257] The inclined portion 340 may have a plurality of planes, and the plurality of planes are arranged in sequence along the vertical direction, and at least two of the plurality of planes have different inclination angles. For example, from the first end of the inclined portion 340 to the second end of the inclined portion 340, the inclination angles of the plurality of planes may gradually decrease. When the weight of the door body 200 is large or the inclination angle of the arc-shaped inclined portion 340 is large, the gravity self-closing effect of the gravity self-closing structure can be ensured. Since the inclination angle of the partial plane of the inclined portion 340 close to the second end is small, the process of moving the abutting portion 410 to the inclined portion 340 is more labor-saving, and the process of the user rotating to open the door body 200 is more convenient.

[0258] For example, the inclination angles of multiple planes can gradually increase from the first end of the inclined portion 340 to the second end of the inclined portion 340. During the process of rotating and opening the door body 200, the abutment portion 410 needs to move from the second end of the inclined portion 340 to the first end of the inclined portion 340. Since the inclination angle of the partial plane of the inclined portion 340 close to the second end is relatively large, the process of moving the abutment portion 410 to the inclined portion 340 is more laborious, thereby further improving the self-closing effect of the gravity self-closing structure.

[0259] The inclined portion 340 can have multiple arcuate surfaces, and the arcuate surface can be convexly arranged away from the first contact portion 330, and the inclination angle of the upper part of the arcuate surface is greater than the inclination angle of the lower part of the arcuate surface; or, the arcuate surface can also be concavely arranged away from the first contact portion 330, and the inclination angle of the upper part of the arcuate surface is less than the inclination angle of the lower part of the arcuate surface.

[0260] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0261] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: include: A box body, wherein the box body is formed with a receiving cavity; A door body, the door body can be rotatably arranged on the box body to close or open the accommodating cavity; A gravity self-closing structure is arranged at the lower end of the door body; the gravity self-closing structure comprises a matching fixed part and a movable part, the fixed part is arranged on the box body, and the movable part is fixedly arranged on the door body; The movable member is provided with a track groove, the track groove faces the fixed member, and the track groove has a first inflection point; the movable member is provided with an abutment portion, the abutment portion faces the fixed member; The fixing member is provided with a first hinge shaft and a second hinge shaft, and the first hinge shaft and the second hinge shaft can move in the track groove; the fixing member has an inclined portion facing the movable member; During the process of the door body rotating to open, the first hinge shaft and the second hinge shaft move from the first end of the track groove toward the second end of the track groove; when the abutting portion is in sliding contact with the inclined portion, the abutting portion moves from the lower end of the inclined portion toward the higher end of the inclined portion, and the door body is displaced upward in the vertical direction; When the door body ends its upward displacement in the vertical direction, at least one of the first hinge axis and the second hinge axis does not move to the first inflection point; During the process of the door body rotating and closing, the first hinge axis and the second hinge axis move from the second end of the track groove toward the first end of the track groove; when the abutment portion slides in contact with the inclined portion, the abutment portion moves from the high end of the inclined portion toward the low end of the inclined portion, and the door body is displaced downward in the vertical direction; when the downward displacement of the door body in the vertical direction begins, at least one of the first hinge axis and the second hinge axis has passed the first inflection point.

2. The refrigerator according to claim 1, characterized in that: The track groove also has a second inflection point; the track groove includes a first groove section, a second groove section and a third groove section that are connected in sequence; The curvature of the first slot segment is smaller than the curvature of the second slot segment, and the curvature of the second slot segment is larger than the curvature of the third slot segment; the first inflection point separates the first slot segment and the second slot segment, and the second inflection point separates the second slot segment and the third slot segment; The first end of the track groove is close to the door front wall of the door body relative to the first inflection point, and the first end of the first groove section is far away from the door side wall of the door body relative to the first inflection point; The first inflection point is closer to the door rear wall of the door body than the second inflection point, and the first inflection point is farther from the door side wall of the door body than the second inflection point; The second inflection point is located relative to the second end of the track groove and is far from the door front wall of the door body. The second inflection point is located relative to the second end of the track groove and is close to the door side wall of the door body.

3. The refrigerator according to claim 2, characterized in that: The first hinge shaft and the second hinge shaft are movably disposed in the track groove, and the first hinge shaft is closer to the second end of the track groove relative to the second hinge shaft; When the door body is in a closed state, the first hinge axis and the second hinge axis are located in the first slot section, and the second hinge axis is located at the first end of the track slot.

4. The refrigerator according to claim 3, characterized in that: When the abutting portion is located at the first end of the inclined portion, the first hinge axis is located at the first inflection point, and the second hinge axis is located in the first groove section.

5. The refrigerator according to claim 3, characterized in that: When the abutting portion is located at the first end of the inclined portion, the first hinge axis is located in the first slot section, and the second hinge axis is located in the first slot section.

6. The refrigerator according to claim 2, characterized in that: The abutment portion moves from the first end of the inclined portion to the second end of the inclined portion, and the rotation angle of the door body is greater than or equal to 5 degrees and less than or equal to 20 degrees.

7. The refrigerator according to claim 1, characterized in that: The fixing member includes a first contact portion and a second contact portion, the first contact portion is connected to the first end of the inclined portion, the second contact portion is connected to the second end of the inclined portion, and the height of the second contact portion is smaller than the height of the first contact portion; During the process of the door body rotating and closing, the abutting portion moves from the first contact portion through the inclined portion to the second contact portion; when the door body is in a closed state, the abutting portion faces the second contact portion.

8. The refrigerator according to claim 7, characterized in that: The abutting portion has a first abutting surface and a second abutting surface, the second abutting surface is arranged parallel to the inclined portion, and the first abutting surface is arranged parallel to at least one of the first contact portion and the second contact portion; The abutting portion faces the inclined portion through the second abutting surface, and the abutting portion faces the first contact portion and the second contact portion through the first abutting surface.

9. The refrigerator according to claim 1, characterized in that: When the hinge shaft is located at the first end of the track groove, the abutting portion abuts against the inclined portion.

10. A refrigerator, characterized in that: It includes a box body, a door body and a gravity self-closing structure; The door body is used to close or open the accommodating cavity of the box body; the gravity self-closing structure is arranged at the lower end of the door body, and the gravity self-closing structure comprises a fixed part and a movable part, the fixed part is arranged on the box body, and the movable part is arranged on the door body; The movable member is provided with a track groove, and the track groove faces the fixed member; the track groove has a first inflection point; the fixed member is provided with a first hinge axis and a second hinge axis, and the first hinge axis and the second hinge axis can move along the extension direction of the track groove; The movable member is provided with an abutment portion, the abutment portion faces the fixed member; the fixed member has an inclined portion facing the movable member, the inclined portion has a high end and a low end, and the low end of the inclined portion is inclined downward; During the process of the door body rotating and closing, the hinge shaft moves from the second end of the trajectory groove toward the first end of the trajectory groove, the first hinge shaft and the second hinge shaft pass through the first inflection point, and the abutment portion moves at least from the first end of the inclined portion toward the second end of the inclined portion. When at least one of the first hinge shaft and the second hinge shaft is located between the first inflection point and the first end of the trajectory groove, the abutment portion faces the inclined portion.

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