Refrigerator

Abstract

The embodiment of the invention 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, wherein the door body is rotatably arranged on the refrigerator body; the gravity self-closing structure comprises a fixed part and a movable part which are matched with each other, the movable part is provided with a first track groove and a second track groove, the first track groove is provided with a first inflection point, and the second track groove is provided with a second inflection point; the fixed part is provided with a first inclined part and a second inclined part, the second end of the first inclined part is inclined upwards, the second end of the second inclined part is inclined downwards, the movable part is provided with an abutting part, and the abutting part is used for abutting against the first inclined part and the second inclined part; when the abutting part is located at the first end of the first inclined part, the first hinge shaft passes through the first inflection point, or the second hinge shaft passes through the second inflection point. According to the refrigerator, the gap between the door body and the refrigerator body can be reduced, and the sealing performance of the containing cavity is improved.

Description

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 7, 2023, with application number 202311474059.X and application name “Refrigerator”, the contents of which are incorporated by reference in this application. Technical Field

[0002] The embodiments of the present application relate to the technical field of household appliances, and in particular to a refrigerator. Background Art

[0003] 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. Summary of the invention

[0004] 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.

[0005] In a first aspect, an embodiment of the present application provides a refrigerator, comprising:

[0006] A box body, wherein the box body is formed with a receiving cavity;

[0007] A door body, the door body can be rotatably arranged on the box body to close or open the accommodating cavity;

[0008] A gravity self-closing structure is arranged at the lower end of the door body, and the gravity self-closing structure includes a matching fixed part and a movable part, the fixed part is fixedly arranged on the box body, and the movable part is fixedly arranged on the door body;

[0009] The movable member is provided with a first track groove and a second track groove, the first track groove and the second track groove are both facing the fixed member, the first track groove has a first inflection point, and the second track groove has a second inflection point;

[0010] The fixing member is provided with a first hinge shaft and a second hinge shaft; the first hinge shaft can be relatively movably arranged in the first track groove, and the second hinge shaft can be relatively movably arranged in the second track groove;

[0011] The surface of the fixing member facing the movable member is further provided with a first inclined portion and a second inclined portion, wherein the first end of the first inclined portion is connected to the first part of the fixing member, and the second end of the first inclined portion is inclined upward; the first end of the second inclined portion is connected to the second end of the first inclined portion, and the second end of the second inclined portion is inclined downward, and the second end of the second inclined portion is connected to the second part of the fixing member;

[0012] The movable member is provided with an abutment portion, and the abutment portion is used to abut the first inclined portion and the second inclined portion;

[0013] When the abutment portion is located at the first end of the first inclined portion, the first hinge axis is located between the first inflection point and the second end of the first track groove; the second hinge axis is located between the first end of the second track groove and the second inflection point;

[0014] Alternatively, when the abutment portion is located at the first end of the first inclined portion, the first hinge axis is located between the first end of the first track groove and the first inflection point; and the second hinge axis is located between the second inflection point and the second end of the second track groove.

[0015] In the refrigerator of the embodiment of the present application, during the process of the door body rotating and closing, the abutment portion can move from the surface of the fixed member to the first end of the first inclined portion, and move along the first end of the first inclined portion to the second end of the first inclined portion, and the movable member drives the door body upward through the abutment portion; and the abutment portion moves from the second end of the first inclined portion to the first end of the second inclined portion, and moves along the first end of the second inclined portion to the second end of the second inclined portion, and the movable member drives the door body downward through the abutment portion, so that the abutment portion can move from the second end of the second inclined portion to the surface of the fixed member facing the movable member, so that the abutment portion can move from the side of the first inclined portion away from the second inclined portion to the side of the second inclined portion away from the first inclined portion;

[0016] 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 portion to move from the second end of the second inclined portion to the first end of the second inclined portion, thereby limiting the abutting portion to a certain extent through the second inclined portion, reducing the possibility of movement of the abutting portion; during the process of rotating and closing the door body, when the abutting portion abuts against the second inclined portion, the abutting portion can move toward the second end of the second inclined portion under the action of the gravity of the door, thereby making the process of the door body moving to the side of the second inclined portion away from the first inclined portion more convenient;

[0017] Furthermore, in the first trajectory groove, the first hinge axis is located at the first inflection point; in the second trajectory groove, the second hinge axis is located at the second inflection point. At this time, the movement directions of the first hinge axis and the second hinge axis change greatly in the horizontal direction. When the abutting portion moves along the first end of the first inclined portion toward the second end of the first inclined portion, the first hinge axis passes through the first inflection point, or the second hinge axis passes through the inflection point, so that the movement process of the movable part is more stable, thereby improving the stability of the door body during the rotation and closing process.

[0018] In a second aspect, an embodiment of the present application provides a refrigerator, comprising a box body, a door body, and a gravity self-closing structure, wherein the door body is used to close or open a receiving cavity of the box body; the opening angle of the door body relative to the box body has a first setting angle, a second setting angle, and a third setting angle that decrease in sequence;

[0019] 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, wherein the fixed part is arranged on the box body, and the movable part is arranged on the door body; the movable part is provided with a first track groove and a second track groove facing the fixed part, the first track groove has a first inflection point, and the second track groove has a second inflection point; the fixed part is provided with a first hinge shaft and a second hinge shaft, the first hinge shaft can be relatively movably arranged in the first track groove, and the second hinge shaft can be relatively movably arranged in the second track groove;

[0020] The surface of the fixing member facing the movable member is further provided with a first inclined portion and a second inclined portion, wherein the first end of the first inclined portion is connected to the first part of the fixing member, and the second end of the first inclined portion is inclined upward; the first end of the second inclined portion is connected to the second end of the first inclined portion, and the second end of the second inclined portion is inclined downward, and the second end of the second inclined portion is connected to the second part of the fixing member;

[0021] The movable member is provided with an abutment portion, and the abutment portion is used to abut the first inclined portion and the second inclined portion;

[0022] During the process of the door body rotating and closing to the first set angle, the abutment portion is movably arranged on the first part of the fixing member, the first hinge shaft moves toward the first inflection point, and the second hinge shaft moves toward the second inflection point;

[0023] When the door body is located at the first set angle, the first hinge axis is located at the first inflection point, the second hinge axis is located at the second inflection point, and the abutment portion is located at the first end of the first inclined portion;

[0024] During the process of the door body rotating and closing from the first setting angle to the second setting angle, the abutment portion moves obliquely upward from the first end of the first inclined portion to the second end of the first inclined portion; during the process of the door body rotating and closing from the second setting angle to the third setting angle, the abutment portion moves obliquely downward from the first end of the second inclined portion to the second end of the second inclined portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 is a perspective view of a refrigerator according to some embodiments;

[0027] Figure 2 is a top view according to some embodiments;

[0028] Figure 3 is a schematic structural diagram of a hinge assembly of a refrigerator according to some embodiments;

[0029] Figure 4 is an exploded view of a hinge assembly at the upper right corner of a refrigerator according to some embodiments;

[0030] Figure 5 is a structural diagram of a hinge assembly of a refrigerator when the door is in a closed state according to some embodiments;

[0031] Figure 6 The refrigerator according to some embodiments is opened to The structural diagram of the hinge assembly;

[0032] Figure 7 The refrigerator according to some embodiments is opened to The structural diagram of the hinge assembly;

[0033] Figure 8 The refrigerator according to some embodiments is opened to The structural diagram of the hinge assembly;

[0034] Fig. 9 The refrigerator according to some embodiments is opened to The structural diagram of the hinge assembly;

[0035] Fig.10 The refrigerator according to some embodiments is opened to Structural diagram of the hinge assembly chain;

[0036] Fig.11 is a schematic diagram of movement trajectories of a first side edge W and a second side edge N of a refrigerator relative to a hinge assembly according to some embodiments;

[0037] Fig.12 It is a schematic diagram of the movement of the first hinge axis of the refrigerator relative to the first track groove and the second hinge axis relative to the second track groove according to some embodiments;

[0038] Fig.13 The door of the refrigerator according to some embodiments is opened to A schematic diagram of the position of the first hinge axis relative to the first track groove and the second hinge axis relative to the second track groove;

[0039] Fig.14 The door of the refrigerator according to some embodiments is opened to A schematic diagram of the position of the first hinge axis relative to the first track groove and the second hinge axis relative to the second track groove;

[0040] Fig.15 The door of the refrigerator according to some embodiments is opened to A schematic diagram of the position of the first hinge axis relative to the first track groove and the position of the second hinge axis relative to the second track groove;

[0041] Fig.16 The door of the refrigerator according to some embodiments is opened to A schematic diagram of the position of the first hinge axis relative to the first track groove and the position of the second hinge axis relative to the second track groove;

[0042] Fig.17 The door of the refrigerator according to some embodiments is opened to A schematic diagram of the position of the first hinge axis relative to the first track groove and the position of the second hinge axis relative to the second track groove;

[0043] Fig.18 is a structural schematic diagram of a gravity self-closing structure of a refrigerator according to some embodiments;

[0044] Fig.19 An exploded view of fixed parts and movable parts of a gravity self-closing structure of a refrigerator according to some embodiments;

[0045] Fig. 20 It is a structural schematic diagram of the abutting portion abutting against the first inclined portion during the process of the door body rotating and closing according to some embodiments;

[0046] Fig.21 It is a structural schematic diagram of the abutting portion abutting against the second end of the first inclined portion during the process of the door body rotating and closing according to some embodiments;

[0047] Fig. 22It is a structural schematic diagram of the abutting portion abutting against the second inclined portion during the process of the door body rotating and closing according to some embodiments;

[0048] Fig.23 A schematic diagram of the positions of the first hinge axis located at the first track groove and the second hinge axis located at the second track groove when the door body is not rotated to the first set angle during the process of rotating and closing according to implementation mode 1 of some embodiments;

[0049] Fig.24 A schematic diagram of the positions of the first hinge axis located in the first track groove and the second hinge axis located in the second track groove when the door body rotates to a first set angle during the process of rotating and closing according to implementation mode 1 of some embodiments;

[0050] Fig.25 A schematic diagram of the position of the first hinge axis located in the first track groove and the second hinge axis located in the second track groove when the door body rotates to the second set angle during the process of rotating and closing according to implementation mode 1 of some embodiments;

[0051] Fig.26 A schematic diagram of the position of the first hinge axis located in the first track groove and the second hinge axis located in the second track groove when the door body rotates to a third set angle during the process of rotating and closing according to implementation mode 1 of some embodiments;

[0052] Fig. 27 A schematic diagram of the position of the first hinge axis located in the first track groove and the second hinge axis located in the second track groove when the door body is closed according to implementation mode 1 of some embodiments;

[0053] Fig.28 A schematic diagram of the positions of the first hinge axis located at the first track groove and the second hinge axis located at the second track groove when the door body is not rotated to the first set angle during the process of rotating and closing according to implementation mode 2 of some embodiments;

[0054] Fig.29 A schematic diagram of the position of the first hinge axis located in the first track groove and the second hinge axis located in the second track groove when the door body rotates to the first set angle during the process of rotating and closing in implementation mode 2 of some embodiments;

[0055] Fig.30 A schematic diagram of the position of the first hinge axis located in the first track groove and the second hinge axis located in the second track groove when the door body rotates to a second set angle during the process of rotating and closing according to implementation mode 2 of some embodiments;

[0056] Fig.31 A schematic diagram of the position of the first hinge axis located in the first track groove and the second hinge axis located in the second track groove when the door body rotates to a third set angle during the process of rotating and closing in implementation mode 2 of some embodiments;

[0057] Fig.32 This is a schematic diagram of the positions of the first hinge axis located in the first track groove and the second hinge axis located in the second track groove when the door body is closed according to implementation mode 2 of some embodiments.

[0058] Description of reference numerals:

[0059] 1. Refrigerator; 5. Door seal; 10. Refrigerator body; 30. Door body; 40. Hinge plate; 41. First hinge axis; 42. Second hinge axis; 50. First track groove; 60. Second track groove; 100. Fixing member; 110. First inclined portion; 120. Second inclined portion; 200. Movable member; 210. Abutting portion; 211. First abutting surface; 212. Second abutting surface. DETAILED DESCRIPTION

[0060] As described in the background technology, in the related art, a refrigerator includes a box body and a door body, the box body is formed with a receiving cavity for accommodating food or other items, and the door body can be movably arranged on the box body to close or open the receiving cavity through the door body. Exemplarily, the door body can be rotatably arranged on the box body, 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 that food or other items can be taken out or put in through the receiving cavity.

[0061] 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.

[0062] In view of this, the refrigerator of the embodiment of the present application is provided with a gravity self-closing structure, and the gravity self-closing structure includes a matching fixed part and a movable part. During the process of rotating and closing the door body, the abutting portion can move from the surface of the fixed part to the first end of the first inclined part, and move along the first end of the first inclined part to the second end of the first inclined part, and the movable part drives the door body to move upward through the abutting portion; and the abutting portion moves from the second end of the first inclined part to the first end of the second inclined part, and moves along the first end of the second inclined part to the second end of the second inclined part, and the movable part drives the door body to move downward through the abutting portion, so that the abutting portion can move from the second end of the second inclined part to the surface of the fixed part facing the movable part, so that the abutting portion can move from the side of the first inclined part away from the second inclined part to the side of the second inclined part away from the first inclined part;

[0063] 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 portion to move from the second end of the second inclined portion to the first end of the second inclined portion, thereby limiting the abutting portion to a certain extent through the second inclined portion, reducing the possibility of movement of the abutting portion; during the process of rotating and closing the door body, when the abutting portion abuts against the second inclined portion, the abutting portion can move toward the second end of the second inclined portion under the action of the gravity of the door, thereby making the process of the door body moving to the side of the second inclined portion away from the first inclined portion more convenient;

[0064] Furthermore, in the first trajectory groove, the first hinge axis is located at the first inflection point; in the second trajectory groove, the second hinge axis is located at the second inflection point. At this time, the movement directions of the first hinge axis and the second hinge axis change greatly in the horizontal direction. When the abutting portion moves along the first end of the first inclined portion toward the second end of the first inclined portion, the first hinge axis passes through the first inflection point, or the second hinge axis passes through the inflection point, so that the movement process of the movable part is more stable, thereby improving the stability of the door body during the rotation and closing process.

[0065] 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, rather than all the embodiments.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] In a first aspect, an embodiment of the present application provides a refrigerator, referring to Figure 1 The refrigerator 1 includes a housing 10 having a receiving cavity, a door 30 connected to the housing 10 to open and close the receiving cavity, and a refrigeration device for supplying cold air to the receiving cavity. The housing 10 includes an inner liner defining the receiving cavity, an outer shell connected to the outer side of the inner liner to form the appearance of the refrigerator, and an insulating layer provided between the inner liner and the outer shell to insulate the receiving cavity.

[0073] The box body 10 defines 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 1 are not limited thereto.

[0074] A take-in / take-out opening is formed at the front end of the accommodating cavity, through which a user can place food into the accommodating cavity or take food out of the accommodating cavity. A rotatable door body 30 is provided on the box body 10 to open or close the take-in / take-out opening of the accommodating cavity. For example, the door body 30 is rotatably connected to the box body 10 by a hinge assembly located at the upper part of the refrigerator 1 and a hinge assembly located at the lower part of the refrigerator 1.

[0075] The box body 10 includes a first side wall (ie, one of the left and right walls of the box body 10) and a second side wall (ie, the other of the left and right walls of the box body 10) that are oppositely disposed. The hinge assembly is disposed on the box body 10 and is close to the first side wall.

[0076] The door body 30 has a door front wall 31 away from the box body 10 when the door body 30 is closed, a door rear wall 33 arranged opposite to the door front wall 31, and a door side wall 32 close to the hinge assembly and connected to the door front wall 31. For example, when the hinge assembly is located on the right side of the box body 10, the right side wall of the door body 30 is the door side wall 32. When the hinge assembly is located on the left side of the box body 10, the left side wall of the door body 30 is the door side wall 32.

[0077] The front wall 31 and the side wall 32 of the door body 30 intersect to form a first side edge W, and the side wall 32 and the rear wall 33 intersect to form a second side edge N. When the door body 30 is closed, the first side edge W is located on the side of the second side edge N away from the box body 10 .

[0078] It should be noted that when both the door front wall 31 and the door side wall 32 are flat wall surfaces, the intersection line of the plane where the door front wall 31 is located and the plane where the door side wall 32 is located is the theoretical first side edge W. The setting of the rounded transition at the intersection of the door front wall 31 and the door side wall 32 forms a first side edge W along the height direction of the door body 30 (i.e., Figure 1 A surface extending in the up and down directions (as shown in FIG. 1 ).

[0079] For ease of description, any straight line extending along the height direction of the door body 30 on the curved surface represents the first side edge W. Similarly, the rounded transition is set at the intersection of the door rear wall 33 and the door side wall 32, and the second side edge N can be represented by the intersection line of the planes where the door rear wall 33 and the door side wall 32 are located, or by a straight line close to and parallel to the intersection line.

[0080] like Figure 2 and Figure 3 As shown, a door seal 5 is provided on the rear wall of the door body 30. When the door body 30 is closed, the door seal 5 surrounds the access opening and fits with the front end surface of the box body 10 to effectively seal the connection between the door body 30 and the box body 10, thereby ensuring that the door body 30 seals the access opening to prevent cold air from escaping. For example, the door seal 5 is ring-shaped.

[0081] Below, a refrigerator 1 is arranged in a cabinet (for example Figure 3 The structure of the hinge assembly is described as follows, referring to Figures 2 to 4The hinge assembly includes a first hinge shaft 41 (i.e., a main hinge shaft), and a second hinge shaft 42 (i.e., an auxiliary hinge shaft) located on the side of the first hinge shaft 41 away from the first body side wall. The end of the door body 30 close to the hinge assembly is provided with a first track groove 50 and a second track groove 60. The first hinge shaft 41 is adapted to the first track groove 50, and the second hinge shaft 42 is adapted to the second track groove 60. When the door body 30 rotates to open or close, the first hinge shaft 41 moves relative to the first track groove 50, and the second hinge shaft 42 moves relative to the second track groove 60.

[0082] The hinge assembly includes a hinge plate 40 fixedly connected to the box body 10, and the hinge plate 40 includes a connecting portion 401 connected to the box body 10 and an extending portion 402 extending forward from the connecting portion 401 and in a horizontal plate shape. The connecting portion 401 can be connected to the box body 10 by fasteners such as screws, pins and bolts.

[0083] For example, see Figure 4 For the hinge assembly located at the upper end of the door body 30, the hinge assembly includes a hinge plate 40 connected to the upper end of the box body 10, and a first hinge shaft 41 and a second hinge shaft 42 are connected to the hinge plate 40 to form a limited axis for guiding the movement of the door body 30. The hinge plate 40, the first hinge shaft 41 and the second hinge shaft 42 can be formed integrally, or can be provided separately and assembled with each other. Among them, the first hinge shaft 41 and the second hinge shaft 42 are arranged on the extension part 402 and extend vertically downward.

[0084] See also Figure 5-Figure 8 For the hinge assembly located at the lower end of the door body 30, the connecting portion 401 is connected to the front end surface of the box body 10. The first hinge shaft 41 and the second hinge shaft 42 are arranged on the hinge plate 40 and extend upward.

[0085] Corresponding to the position of the hinge plate 40, the upper and lower ends of the door body 30 are provided with a first track groove 50 and a second track groove 60. For example, the positions of the two first track grooves 50 at the upper and lower ends of the door body 30 in the height direction of the refrigerator 1 correspond, and the positions of the two second track grooves 60 in the height direction of the refrigerator 1 correspond, so that the movements of the upper and lower ends of the door body 30 are consistent, so that the door body 30 can be opened or closed more smoothly.

[0086] In this embodiment, continue to refer to Figure 2 The plane where the side wall of the box body 10 close to the hinge plate 40 (i.e., the first body side wall) is located is defined as the reference plane M0. When the refrigerator 1 is housed in a cabinet, the side of the reference plane M0 close to the cabinet is defined as the outer side, and the opposite side close to the accommodating cavity is defined as the inner side.

[0087] It is understandable that in order for the door body 30 of the refrigerator 1 to open normally, during the rotation of the door body 30, the first side edge W cannot exceed the reference plane M0 too much to avoid the first side edge W colliding with the cabinet and causing the door body 30 to fail to open normally.

[0088] In summary, if the door body 30 can move toward the inner side during the rotation process, the first side edge W will not exceed the reference plane M0 too much. For example, when the hinge plate 40 is arranged on the right side of the door body 30, the inner side is the left side of the reference plane M0, and the door body 30 needs to move to the left during the rotation process. When the hinge plate 40 is arranged on the left side of the door body 30, the inner side is the right side of the reference plane M0, and the door body 30 needs to move to the right during the rotation process.

[0089] For example, Figure 3 As shown, the central trajectory line of the first trajectory groove 50 is recorded as the first trajectory line S, and the first trajectory line S is defined by the shape of the first trajectory groove 50. The first trajectory line S includes a straight trajectory segment and a curved trajectory segment connected by a smooth transition. The straight trajectory segment extends toward the door side wall 32, and the curved trajectory segment is located on the side of the straight trajectory segment close to the door side wall 32, and protrudes toward the direction close to the second side edge N.

[0090] The first trajectory groove 50 has a first inflection point, which divides the first trajectory groove 50 into a curved groove segment and a straight groove segment. The portion of the first trajectory groove 50 located between the first end of the first trajectory groove 50 and the first inflection point forms a curved groove segment, and the center trajectory line of the curved groove segment is correspondingly recorded as the curved trajectory segment; the portion of the first trajectory groove 50 located between the first inflection point and the second end of the first trajectory groove 50 forms a straight groove segment, and the center trajectory line of the straight groove segment is correspondingly recorded as the straight trajectory segment.

[0091] The second track groove 60 can be set as a curved groove, and one end of the second track groove 60 is farther away from the door rear wall 33 and the door side wall 32 than the other end of the second track groove 60. The second track groove 60 protrudes toward the door rear wall 33. The center track line of the second track groove 60 is recorded as the second track line K. The second track line K is defined by the shape of the second track groove 60, and the second track line K is curved and protrudes toward the door rear wall 33.

[0092] The second inflection point divides the second track groove 60 into a first curved segment and a second curved segment; the portion of the second track groove 60 between the first end of the second track groove 60 and the second inflection point forms the first curved segment, and the portion of the second track groove between the second inflection point and the second end of the second track groove 60 forms the second curved segment.

[0093] When the door body 30 rotates by a unit angle, the speed at which the first hinge axis 41 is located in the curved groove section is less than the speed at which the first hinge axis is located in the straight groove section; the curvature of the second curved segment is less than the curvature of the first curved segment, and when the door body 30 rotates by a unit angle, the speed at which the second hinge axis is located in the first curved segment is less than the speed at which the second hinge axis is located in the second curved segment.

[0094] Alternatively, the first trajectory groove 50 can also be set as a curved groove, and the first inflection point divides the first trajectory groove 50 into a first curved portion and a second curved portion; the portion of the first trajectory groove 50 located between the first end of the first trajectory groove 50 and the first inflection point forms the first curved portion, and the portion of the first trajectory groove 50 located between the first inflection point and the second end of the first trajectory groove 50 forms the second curved portion.

[0095] Among them, Figure 5 As shown, the first track line S includes a first positioning point P1 away from the door side wall 32 and a sixth positioning point P6 close to the door side wall 32. The first track line S first extends from the first positioning point P1 along a straight line toward the door side wall 32, and then extends along a curve to the sixth positioning point P6;

[0096] For example, the first trajectory line S extends from the first positioning point P1 along a straight line toward the door side wall 32, and then extends to the sixth positioning point P6 along a curve toward the door side wall 32 and the door front wall 31. The distance between the first positioning point P1 and the door front wall 31 is recorded as D1, and the distance between the sixth positioning point P6 and the door front wall 31 is recorded as D2, and D1>D2.

[0097] For example, the sixth positioning point P6 is located on the side of the first positioning point P1 close to the door side wall 32 and away from the door front wall 31, that is, the first trajectory line S extends from the first positioning point P1 along a straight line toward the door side wall 32, and then extends along a curve toward the door side wall 32 and away from the door front wall 31 to the sixth positioning point P6.

[0098] Hereinafter, the first trajectory line S will be described as extending from the first positioning point P1 along a straight line toward the door side wall 32 and then along a curve toward the door side wall 32 and the door front wall 31 to the sixth positioning point P6.

[0099] like Figure 5 As shown, the second trajectory line K includes a first guide point Q1 away from the door side wall 32 and a sixth guide point Q6 close to the door side wall 32. The sixth guide point Q6 is located on the side of the first guide point Q1 away from the door front wall 31 and close to the door side wall 32, and the second trajectory line K extends from the first guide point Q1 to the direction away from the door front wall 31 and close to the door side wall 32 along a curve to the sixth guide point Q6.

[0100] When the door body 30 is in the closed state (i.e. When the door 30 is in the closed state, the first hinge axis is located at the side of the second hinge axis close to the door side wall 32 and close to the door rear wall 33.

[0101] The distance between the first guide point Q1 and the door front wall 31 is recorded as Z1, and the distance between the sixth guide point Q6 and the door front wall 31 is recorded as Z2. For example, Z1<D2<D1<Z2. The above configuration enables the second track groove 60 to effectively limit the movement of the second hinge shaft 42, so as to drive the first hinge shaft 41 to move in the first track groove 50, so that the door body 30 moves a certain distance inward during the opening process of the door body 30, and ensures the stability of the door body 30 rotating to open.

[0102] like Figure 5 As shown, in this embodiment, when the door body 30 is in a closed state, the central axis (positioning central axis P) of the first hinge axis 41 is located at the first positioning point P1 of the first track line S, and the central axis (guide central axis Q) of the second hinge axis 42 is located at the first guide point Q1 of the second track line K. That is, when the door body 30 is in a closed state, the first hinge axis 41 is located on the side of the second hinge axis 42 close to the door side wall 32 and close to the door rear wall 33.

[0103] Combination Figure 5 , the door body 30 is in a closed state, the distance between the first hinge axis 41 and the second hinge axis 42 in the first direction parallel to the door side wall 32 is recorded as L1=D1-Z1, and 2.5mm≤L1≤10mm, the distance between the first hinge axis 41 and the second hinge axis 42 in the second direction perpendicular to the door side wall 32 is recorded as L2, and 7.5mm≤L2≤30mm. For example, when L1=5mm and L2=15mm, the thickness of the door body 30 is between 44mm and 53mm, so that when the door body 30 is opened, the distance of the first side edge W beyond the reference plane M0 is small, for example, less than 3mm.

[0104] For example, L1 is 2.5 mm, 5 mm, 7.5 mm or 10 mm, and L2 is 7.5 mm, 15 mm, 25 mm or 30 mm.

[0105] During the process of the door body 30 rotating and closing, when the door body 30 is rotated from the maximum angle G maxDuring the process of rotating to the closed state, the first hinge shaft moves relative to the first track groove 50 and always moves in the direction away from the door side wall 32, and the second hinge shaft moves relative to the second track groove 60 and always moves in the direction away from the door side wall 32, that is, during the entire process of closing the door body 30, the first hinge shaft and the second hinge shaft both maintain unidirectional movement without reversing, so that the force directions of the first hinge shaft and the second hinge shaft are always consistent, which is conducive to improving the feel of the door body 30 when opening and closing, improving the user experience, and extending the service life of the first track groove 50 and the second track groove 60. In addition, during the process of closing the door body 30, the first hinge shaft and the second hinge shaft maintain movement, so that the acceleration change of the door body 30 is small, which is conducive to improving the smoothness of the door body 30 when opening.

[0106] 0°<G1<G2<G3<G4<G max The first positioning point P1, the second positioning point P2, the third positioning point P3, the fourth positioning point P4, the fifth positioning point P5, and the sixth positioning point P6 are sequentially distributed along the first track line S. The second positioning point P2, the third positioning point P3, and the fourth positioning point P4 are distributed along the straight track segment toward the direction close to the door side wall 32, and the fourth positioning point P4, the fifth positioning point P5, and the sixth positioning point P6 are distributed along the curved track segment toward the direction close to the door side wall 32 and the door front wall 3131.

[0107] For example, the first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, and the sixth guide point Q6 are sequentially distributed along the first track line S. The second guide point Q2, the third guide point Q3, the fourth guide point Q4, and the fifth guide point Q5 are distributed along the second track line K in a direction close to the door side wall 32 and away from the door front wall 31, and the fifth guide point Q5 and the sixth guide point Q6 are distributed along the second track line K in a direction close to the door side wall 32 and close to the door front wall 31. It should be noted that G1, G2, G3, G4, G max They can be recorded in sequence as the first angle, the second angle, the third angle, the fourth angle and the maximum angle.

[0108] In the following description, Indicates the opening angle of the door body 30. The opening angle when the door body 30 is closed The opening angle of the door 30 when it is opened relative to the box body 10 to open the access opening is a positive number;

[0109] like Figure 5 As shown, positioning center axis P is located at the first positioning point P1 of the first trajectory line S, and the guide center axis Q is located at the first guide point Q1 of the second trajectory line K.

[0110] like Figure 6As shown, During the process, the door body 30 opens from a closed state to any angle less than G2. During this process, the first hinge shaft 41 moves along the straight trajectory segment of the first trajectory line S toward the door side wall 32, and the second hinge shaft 42 moves along the curved second trajectory line K toward the door side wall 32 and away from the door front wall 31.

[0111] Above, when the opening angle of the door body 30 is The movement trend of the door body 30 remains unchanged; the difference is that when the door body 30 is opened to different angles, the position of the first hinge axis 41 relative to the straight track segment of the first track line S is different, and the position of the second hinge axis 42 relative to the second track line K is different.

[0112] Thus, when the door body 30 is opened at an angle When any angle in the range of 0° to G2 is selected, it can represent the relative positions of the first hinge axis 41 and the first track groove 50, and the second hinge axis 42 and the second track groove 60 when the door body 30 is opened to the interval (0°, G2). Figure 6 and Fig.13 As shown, Represents the position within the opening angle range for comparison with when the door body 30 is opened to other angles.

[0113] like Figure 6 and Fig.13 As shown, when the door body 30 is opened to G1, the positioning center axis P is located at the second positioning point P2 of the first trajectory line S, and the second positioning point P2 is located on the side of the first positioning point P1 close to the door side wall 32. The guiding center axis Q is located at the second guiding point Q2 of the second trajectory line K, and the second guiding point Q2 is located on the side of the first guiding point Q1 close to the door side wall 32 and away from the door front wall 31.

[0114] like Figure 7 and Fig.14 As shown, when When the door body 30 rotates and opens to G2, the central axis P is located at the third positioning point P3 of the straight track segment of the first track line S, and the third positioning point P3 is located on the side of the second positioning point P2 close to the door side wall 32. The third positioning point P3 is the end point of the straight track segment close to the door side wall 32, that is, the third positioning point P3 is the end point of the first hinge axis 41 moving relative to the first track groove 50 along the straight line toward the door side wall 32.

[0115] The guide center axis Q is located at the third guide point Q3 of the second trajectory line K, and the third guide point Q3 is located on the side of the second guide point Q2 close to the door side wall 32 and away from the door front wall 31. For example, G2∈[26°, 30°] is any value. In summary, when the door body 30 is opened from the closed state to G2, the first hinge axis 41 moves along a straight line toward the direction close to the door side wall 32, and the second hinge axis 42 moves along a curve toward the direction close to the door side wall 32 and away from the door front wall 31.

[0116] like Figure 8 As shown, During the process, the door body 30 opens from G2 to any angle less than G4. During this process, the first hinge shaft 41 moves along the curved trajectory segment of the first trajectory line S toward the direction close to the door side wall 32 and close to the door front wall 31, and the second hinge shaft 42 moves along the second trajectory line K toward the direction close to the door side wall 32 and away from the door front wall 31.

[0117] Above, when the opening angle of the door body 30 is The movement trend of the door body 30 remains unchanged; the difference is that when the opening angle of the door body 30 is different, the position of the first hinge axis 41 relative to the curved track segment of the first track line S is different, and the position of the second hinge axis 42 relative to the second track line K is different. Similarly, when the opening angle of the door body 30 is different, the movement trend of the door body 30 remains unchanged; the difference is that when the opening angle of the door body 30 is different, the position of the first hinge axis 41 relative to the curved track segment of the first track line S is different, and the position of the second hinge axis 42 relative to the second track line K is different. When the door body 30 is opened to the interval, any opening angle in the range of G2 to G4 can represent the relative positions of the first hinge axis 41 and the first track groove 50, and the second hinge axis 42 and the second track groove 60. Fig.15 As shown, It represents the position of the door body 30 opened to the angle range, so as to compare with the position of the door body 30 opened to other angles.

[0118] See also Figure 8 and Fig.15 , when the door body 30 is opened to G3, the positioning center axis P is located at the fourth positioning point P4 of the first track line S, and the fourth positioning point P4 is located on the side of the third positioning point P3 close to the door side wall 32 and close to the door front wall 31; the guiding center axis Q is located at the fourth guiding point Q4 of the second track line K, and the fourth guiding point Q4 is located on the side of the third guiding point Q3 close to the door side wall 32 and away from the door front wall 31. For example, G3∈[43°, 47°] is any value; in this embodiment, G3=45°.

[0119] like Fig. 9 and Fig.16 As shown, when , the door body 30 rotates and opens to G4. The positioning center axis P is located at the fifth positioning point P5 of the curved track segment of the first track line S, and the fifth positioning point P5 is located on the side of the fourth positioning point P4 close to the door side wall 32 and close to the door front wall 31. The guiding center axis Q is located at the fifth guiding point Q5 of the second track line K, and the fifth guiding point Q5 is located on the side of the fourth guiding point Q4 close to the door side wall 32 and away from the door front wall 31. For example, G4∈any value in [88°, 92°].

[0120] In this embodiment, When the door body is opened to 90°, the first hinge axis 41 is located relative to the first track groove 50 on the side close to the door side wall 32 when the door body 30 is closed; that is, the fifth positioning point P5 is located on the side of the first positioning point P1 close to the door side wall 32.

[0121] like Fig.10 As shown, when When the door 30 is rotated from G4 to G max In this process, the first hinge shaft 41 moves along the curved track segment of the first track line S toward the direction close to the door side wall 32 and the door front wall 31, and the second hinge shaft 42 moves along the second track line K toward the direction close to the door side wall 32 and the door front wall 31. max =116°.

[0122] Above, when the opening angle of the door body 30 is When the door 30 is opened to G4 to G max When the angles between the first hinge axis 41 and the second hinge axis 42 are different, the position of the first hinge axis 41 relative to the curved track segment of the first track line S is different, and the position of the second hinge axis 42 relative to the second track line K is different.

[0123] Similarly, when the opening angle of the door body 30 is When any opening angle in the interval is selected, the relative positions of the first hinge axis 41 and the first track groove 50, and the relative positions of the second hinge axis 42 and the second track groove 60 when the door body 30 is opened to the interval can be represented. Fig.17 As shown, It represents the position of the door body 30 within the opening angle range, for comparison with when the door body 30 is opened to other states.

[0124] When the door 30 is opened to G maxWhen the angle is greater than 90°, the positioning center axis P is located at the sixth positioning point P6 of the first trajectory line S, and the sixth positioning point P6 is located on the side of the fifth positioning point P5 close to the door side wall 32 and the door front wall 31. The guiding center axis Q is located at the sixth guiding point Q6 of the second trajectory line K, and the sixth guiding point Q6 is located on the side of the fifth guiding point Q5 close to the door side wall 32 and the door front wall 31.

[0125] It should be noted that some embodiments of the present disclosure are not limited to the above settings. In some embodiments, when the door body 30 is opened from G4 to G max During the process, the second hinge shaft 42 moves relative to the second track groove 60 toward the door side wall 32, and the first hinge shaft 41 withdraws relative to the first track groove 50, that is, the first hinge shaft 41 moves relative to the first track groove 50 toward the door side wall 32.

[0126] For example, the sixth positioning point Q6 is located on the side of the fifth positioning point Q5 close to the door side wall 32. During the opening process of the door body 30, after the guide center axis Q moves to the fifth positioning point Q5, as the door body 30 continues to open, the guide center axis Q continues to move toward the direction close to the door side wall 32 to the sixth positioning point Q6, and the positioning center axis P moves along the first trajectory line S in the direction away from the door side wall 32 to the sixth positioning point Q6.

[0127] It can be understood that, in combination with the door body 30 being opened to a specific angle (including the first angle G1, the second angle G2, the third angle G3, the fourth angle G4 and the maximum angle G max ), the positions of the two hinge axes relative to the two track grooves can be known, and the matching relationship between the first hinge axis 41 and the first track groove 50, and the second hinge axis 42 and the second track groove 60 includes the following situations.

[0128] When the door is opened at an angle of 30 When the first hinge shaft 41 moves along the straight track section of the first track groove 50, the first hinge shaft 41 moves along the straight track section of the first track groove 50. When the first hinge shaft 41 moves to the end point of the straight track segment of the first track groove 50 close to the door side wall 32 (i.e., the third positioning point P3). When the first hinge shaft 41 moves along the curved track segment of the first track groove 50 .

[0129] When the door is opened at an angle of 30 When G4=90°, the second hinge shaft 42 moves along the second track groove 60 toward the door side wall 32 and away from the door front wall 31. When the second hinge shaft 42 moves along the second track groove 60 toward the direction close to the door side wall 32 and the door front wall 31 .

[0130] In this embodiment, when the door body 30 is opened from the closed state to the G max During the process of opening the door 30 from the closed state to the open state, the door 30 always moves inward relative to the position of the central axis P of the first hinge shaft 41 when the door 30 is closed. That is, when the first hinge shaft 41 is used as a stationary reference, when the door 30 is opened from the closed state to the open state, the door 30 always moves inward relative to the position of the central axis P of the first hinge shaft 41 when the door 30 is closed. max During the process, the door body 30 always moves toward the inner side relative to the central axis P of the first hinge axis 41.

[0131] When the door body 30 (or the first track groove 50 and the second track groove 60) is taken as a stationary reference, the position of the first hinge axis 41 when the door body 30 is closed is recorded as the first initial position. Then, when the door body 30 is opened from the closed state to the G max During the process of opening, the distance between the first hinge axis 41 and the first initial position gradually increases. That is, when the door body 30 is opened from the closed state to the G max During the process, the first hinge shaft 41 always moves towards the door side wall 32 relative to the door body 30.

[0132] For example, when the door body 30 is rotated from G2 to G max During the process, the first hinge shaft 41 moves along the curved trajectory segment of the first trajectory line S toward the door side wall 32 and the door front wall 31. Every time the door body 30 rotates to open a unit angle, the speed at which the first hinge shaft 41 moves toward the door front wall 31 is approximately equal to the speed at which it moves toward the door side wall 32 (i.e., the difference between the two speeds is less than 1 mm).

[0133] Reference Fig.18 and Fig.19 In some embodiments, the refrigerator also includes a gravity self-closing structure, which can be arranged at the lower end of the door body 30, and the gravity self-closing structure can include matching fixed parts 100 and movable parts 200, wherein the fixed part 100 can be fixedly arranged on the box body 10, the movable part 200 can be fixedly arranged on the door body 30, the movable part 200 and the fixed part 100 can be arranged in a vertical direction, and the hinge assembly located at the lower end of the door body 30 can be reused to form at least one of the fixed part 100 and the movable part 200, so as to make the formation process of the gravity self-closing structure more convenient.

[0134] When the door body is rotated and closed to a closed state, the door body 30 can move toward the box body 10 through the gravity self-closing structure, so that the door body 30 can abut against the box body 10, reducing the gap between the door body 30 and the box body 10.

[0135] For example, refer to Figure 20-Figure 22A first inclined portion 110 and a second inclined portion 120 may be provided on the surface of the fixed member 100 facing the movable member 200, wherein a first end of the first inclined portion 110 is connected to a first portion of the fixed member 100, a second end of the first inclined portion 110 is close to the movable member 200 relative to the first end of the first inclined portion 110, and the first inclined portion 110 is inclined upward; a first end of the second inclined portion 120 is connected to a second end of the first inclined portion 110, a second end of the second inclined portion 120 is connected to a second portion of the fixed member 100, and the second inclined portion 120 is inclined downward.

[0136] It is easy to understand that the first portion of the fixing member 100 may refer to a portion of the fixing member 100 located at the first inclined portion 110 away from the second inclined portion 120, or the first portion of the fixing member 100 may also refer to a portion of the fixing member 100 located below the first inclined portion 110, that is, the first end of the first inclined portion 110 may be flush with the edge of the fixing member 100;

[0137] The second part of the fixing member 100 may represent the part of the fixing member 100 located at the second inclined portion 120 away from the first inclined portion 110, or the second part of the fixing member 100 may also represent the part of the fixing member 100 located below the second inclined portion 120, that is, the second end of the second inclined portion 120 may be flush with the edge of the fixing member 100.

[0138] The surface of the movable member 200 facing the fixed member 100 may be provided with an abutment portion 210, which can be used to abut against the surface of the fixed member 100 facing the movable member 200, and the abutment portion 210 can also be used to abut against the first inclined portion 110 and the second inclined portion 120, so that the movable member 200 drives the door body 30 to move up and down in the vertical direction through the abutment portion 210. The height of the first inclined portion 110 can be equal to the height of the second inclined portion 120, and the first inclined portion 110 can be connected to the second inclined portion 120, so that the abutment portion 210 can move from the first inclined portion 110 to the second inclined portion 120, or from the second inclined portion 120 to the first inclined portion 110.

[0139] The first inclined portion 110 is configured such that: when the abutting portion 210 abuts against the first inclined portion 110 and moves from the first end of the first inclined portion 110 to the second end of the first inclined portion 110, the movable member 200 can drive the door body 30 to move upward through the abutting portion 210; when the abutting portion 210 abuts against the first inclined portion 110 and moves from the second end of the first inclined portion 110 to the first end of the first inclined portion 110, the movable member 200 can drive the door body 30 to move downward through the abutting portion 210;

[0140] The second inclined portion 120 is configured as follows: when the abutting portion 210 abuts against the second inclined portion 120 and moves from the first end of the second inclined portion 120 to the second end of the second inclined portion 120, the movable part 200 can drive the door body 30 to move downward through the abutting portion 210; when the abutting portion 210 abuts against the second inclined portion 120 and moves from the second end of the second inclined portion 120 to the first end of the second inclined portion 120, the movable part 200 can drive the door body 30 to move upward through the abutting portion 210.

[0141] For example, when the door body 30 is in the closed state (ie When the door body 30 is in the open state (for example, When the contact portion 210 is in contact with the surface of the fixed member 100 facing the movable member 200 , the contact portion 210 is located on a side of the first inclined portion 110 away from the second inclined portion 120 .

[0142] Refer to Fig. 22 , Fig.21 and Fig. 20 , during the process of rotating and opening the door body 30, the abutment portion 210 can move from the surface of the fixing member 100 to the second end of the second inclined portion 120, and move along the second end of the second inclined portion 120 to the first end of the second inclined portion 120, and the movable member 200 drives the door body 30 to move upward through the abutment portion 210; and the abutment portion 210 moves from the first end of the second inclined portion 120 to the second end of the first inclined portion 110, and moves along the second end of the first inclined portion 110 to the first end of the first inclined portion 110, and the movable member 200 drives the door body 30 to move downward through the abutment portion 210, so that the abutment portion 210 can move from the first end of the first inclined portion 110 to the surface of the fixing member 100 facing the movable member 200, so that the abutment portion 210 can move from the side of the second inclined portion 120 away from the first inclined portion 110 to the side of the first inclined portion 110 away from the second inclined portion 120.

[0143] Refer to Fig. 20 , Fig.21 and Fig. 22During the process of rotating and closing the door body 30, the abutment portion 210 can move from the surface of the fixed member 100 to the first end of the first inclined portion 110, and move along the first end of the first inclined portion 110 to the second end of the first inclined portion 110, and the movable member 200 drives the door body 30 to move upward through the abutment portion 210; and the abutment portion 210 moves from the second end of the first inclined portion 110 to the first end of the second inclined portion 120, and moves along the first end of the second inclined portion 120 to the second end of the second inclined portion 120, and the movable member 200 drives the door body 30 to move downward through the abutment portion 210, so that the abutment portion 210 can move from the second end of the second inclined portion 120 to the surface of the fixed member 100 facing the movable member 200, so that the abutment portion 210 can move from the side of the first inclined portion 110 away from the second inclined portion 120 to the side of the second inclined portion 120 away from the first inclined portion 110.

[0144] The door body 30 has a certain gravity. During the process of rotating and opening the door body 30, it is necessary to overcome the gravity of the door body 30 so that the door body 30 can drive the abutting portion to move from the second end of the second inclined portion 120 to the first end of the second inclined portion 120, thereby limiting the abutting portion 210 to a certain extent through the second inclined portion 120, reducing the possibility of movement of the abutting portion 210; and, during the process of rotating and closing the door body 30, when the abutting portion abuts against the second inclined portion 120, the abutting portion 210 can move toward the second end of the second inclined portion 120 under the action of the gravity of the door body 30, thereby making the process of moving the door body 30 to the side of the second inclined portion 120 away from the first inclined portion 110 more convenient.

[0145] For example, when the abutment portion 210 moves to the side of the second inclined portion 120 away from the first inclined portion 110, the door seal 5 located on the rear wall of the door body 30 can surround the loading and unloading opening, so that the door seal 5 fits against the front end surface of the box body 10 to effectively seal the connection between the door body 30 and the box body 10, thereby ensuring that the door body 30 seals the loading and unloading opening through the cooperation of the gravity self-closing structure and the door seal 5 to prevent cold air from overflowing.

[0146] It should be noted that the second end of the first inclined portion 110 can be directly connected to the first end of the second inclined portion 120, or the second end of the first inclined portion 110 can also be connected to the first end of the second inclined portion 120 through a transition structure, so that the abutment portion 210 can move from the second end of the first inclined portion 110 to the first end of the second inclined portion 120 through the transition structure, and the surface of the transition structure facing the movable part 200 can be flush with the second end of the first inclined portion 110 and the first end of the second inclined portion 120, so that the abutment portion 210 can more stably abut against the surface of the transition structure facing the movable part 200.

[0147] Reference Fig.19In some embodiments, the first hinge axis 41 and the second hinge axis 42 can be arranged on the surface of the fixed part 100 facing the movable part 200, and the first hinge axis 41 and the second hinge axis 42 can both extend upward in the vertical direction; and the first track groove 50 and the second track groove 60 can both be correspondingly arranged on the surface of the movable part 200 facing the fixed part 100.

[0148] During the process of the door body 30 rotating to open or close, in the horizontal direction, the first hinge shaft moves relative to the first track groove 50 along the extension direction of the first track groove 50, and the second hinge shaft moves relative to the second track groove 60 along the extension direction of the second track groove 60; in the vertical direction, when the movable part 200 drives the door body 30 to move in the vertical direction through the abutment part 210, the fixed part 100 is relatively fixed to the door body 30, so that the first hinge shaft moves relative to the first track groove 50 in the vertical direction, and the second hinge shaft moves relative to the second track groove 60 in the vertical direction.

[0149] For example, when the movable part 200 drives the door body 30 to move upward through the abutment portion 210, part of the first hinge shaft 41 extends out of the first track groove 50, and the distance between the first hinge shaft 41 and the bottom surface of the first track groove 50 increases; part of the second hinge shaft 42 extends out of the second track groove 60, and the distance between the second hinge shaft 42 and the bottom surface of the second track groove 60 increases.

[0150] It is easy to understand that the length of the first hinge axis 41 extending out of the first track groove 50 and the length of the second hinge axis 42 extending out of the second track groove 60 are equal to the distance between the second end of the first inclined portion 110, the first end of the second inclined portion 120 and the surface of the fixing member 100, and the greater the length of the first hinge axis 41 located in the first track groove 50, the better the stability of the first hinge axis 41, and the greater the length of the second hinge axis 42 located in the second track groove 60, the better the stability of the second hinge axis 42.

[0151] For example, when the distance between the second end of the first inclined portion 110, the first end of the second inclined portion 120 and the surface of the fixed member 100 remains unchanged, the stability of the first hinge shaft 41 in the first track groove 50 can be improved by increasing the length of the first hinge shaft 41 and the depth of the first track groove 50, and the stability of the second hinge shaft 42 in the second track groove 60 can be improved by increasing the length of the second hinge shaft 42 and the depth of the second track groove 60, so as to reduce the possibility of the movable member 200 being detached from the fixed member 100.

[0152] For example, when the abutment portion 210 abuts against the surface of the fixed part 100 facing the movable part 200, the length of the first hinge axis 41 in the first trajectory groove 50 is set as the first length of the first hinge axis 41, and the length of the second hinge axis 42 in the second trajectory groove 60 is set as the first length of the second hinge axis 42; when the abutment portion 210 abuts against the second end of the first inclined portion 110 or the first end of the second inclined portion 120, the length of the first hinge axis 41 in the first trajectory groove 50 is set as the second length of the first hinge axis 41, and the length of the second hinge axis 42 in the second trajectory groove 60 is set as the second length of the second hinge axis 42.

[0153] It is easy to understand that in the hinge assembly located at the upper end of the door body 30, in the vertical direction, the distance between the first hinge axis 41 and the bottom surface of the first track groove 50, and the distance between the second hinge axis 42 and the bottom surface of the second track groove 60 are both greater than or equal to the distance between the second end of the first inclined portion 110, the first end of the second inclined portion 120 and the surface of the fixing member 100, so as to improve the stability of the door body 30 during rotation.

[0154] In some embodiments, the abutting portion 210 may be provided with a first abutting surface 211 and a second abutting surface 212 connected to each other, and the first abutting surface 211 and the second abutting surface 212 are both inclined relative to the vertical direction. When the door body 30 is in the open state (for example, When the contact portion 210 is in contact with the fixed member 100, the bottom of the contact portion 210 may contact the surface of the fixed member 100 facing the movable member 200, and the contact portion 210 is located on a side of the first inclined portion 110 away from the second inclined portion 120.

[0155] The first abutting surface 211 and the second abutting surface 212 are used to abut against the inclined surface of the first inclined portion 110 , and the second abutting surface 212 is used to abut against the inclined surface of the second inclined portion 120 . The bottom end of the first abutting surface 211 is connected to the bottom end of the second abutting surface 212 .

[0156] During the process of rotating and opening the door body 30, the bottom of the abutment portion 210 can move from the surface of the fixing member 100 to the second end of the second inclined portion 120, and the second abutment surface 212 can move along the second end of the second inclined portion 120 to the first end of the second inclined portion 120, and the movable member 200 drives the door body 30 to move upward through the abutment portion 210; and the bottom of the abutment portion 210 moves from the first end of the second inclined portion 120 to the second end of the first inclined portion 110 through the arc surface, and the first abutment surface 211 can move along the second end of the first inclined portion 110 to the first end of the first inclined portion 110, and the movable member 200 drives the door body 30 to move downward through the abutment portion 210, so that the abutment portion 210 can move from the first end of the first inclined portion 110 to the surface of the fixing member 100 facing the movable member 200, so that the abutment portion 210 can move from the side of the second inclined portion 120 away from the first inclined portion 110 to the side of the first inclined portion 110 away from the second inclined portion 120.

[0157] During the process of rotating and closing the door body 30, the bottom of the abutment portion 210 can move from the surface of the fixing member 100 to the first end of the first inclined portion 110, the first abutment surface 211 moves along the first end of the first inclined portion 110 to the second end of the first inclined portion 110, and the movable member 200 drives the door body 30 to move upward through the abutment portion 210; and the bottom of the abutment portion 210 moves from the second end of the first inclined portion 110 to the first end of the second inclined portion 120 through the arc surface, the second abutment surface 212 moves along the first end of the second inclined portion 120 to the second end of the second inclined portion 120, and the movable member 200 drives the door body 30 to move downward through the abutment portion 210, so that the abutment portion 210 can move from the second end of the second inclined portion 120 to the surface of the fixing member 100 facing the movable member 200, so that the abutment portion 210 can move from the side of the first inclined portion 110 away from the second inclined portion 120 to the side of the second inclined portion 120 away from the first inclined portion 110.

[0158] For example, in a vertical plane, the first abutment surface 211 can be arranged parallel to the inclined surface of the first inclined portion 110, and the second abutment surface 212 can be arranged parallel to the inclined surface of the second inclined portion 120, so as to increase the fitting area between the first abutment surface 211 and the first inclined portion 110 and the fitting area between the second abutment surface 212 and the second inclined portion 120, thereby improving the stability of the bottom end of the abutment portion 210 moving along the moving path during the rotation and closing of the door body 30.

[0159] When the bottom of the abutment portion 210 is located at the connection between the surface of the fixing member 100 and the first end of the first inclined portion 110, the first abutment surface 211 is in contact with the first inclined portion 110. When the abutment portion 210 moves from the first end of the first inclined portion 110 toward the second end of the first inclined portion 110, the area in which the first abutment surface 211 is in contact with the first inclined portion 110 gradually decreases. When the abutment portion 210 moves to the second end of the first inclined portion 110, the first abutment surface 211 is completely separated from the first inclined portion 110, and the bottom of the abutment portion 210 abuts against the arc surface.

[0160] When the bottom of the abutting portion 210 moves to the first end of the second inclined portion 120 and moves from the first end of the second inclined portion 120 toward the second end of the second inclined portion 120, the area of ​​the second abutting surface 212 fitting against the second inclined portion 120 gradually increases. When the abutting portion 210 moves to the second end of the second inclined portion 120, the fitting area between the second abutting surface 212 and the second inclined portion 120 is the largest, and the bottom of the abutting portion 210 abuts against the surface of the fixed member 100 facing the movable member 200.

[0161] When the inclination angle of the first inclined portion 110 is equal to the inclination angle of the second inclined portion 120, the inclination angle of the first abutting surface 211 can be equal to the inclination angle of the second abutting surface 212; when the inclination angle of the first inclined portion 110 is smaller than the inclination angle of the second inclined portion 120, the inclination angle of the first abutting surface 211 can be correspondingly smaller than the inclination angle of the second inclined portion 120, so as to increase the fitting area between the first abutting surface 211 and the first inclined portion 110 and the fitting area between the second abutting surface 212 and the second inclined portion 120.

[0162] For example, the inclination angle of the second inclined portion 120 may also be greater than the inclination angle of the first inclined portion 110. When the door body 30 is in the closed state (ie When the inclination angle of the second inclined portion 120 is larger, the more difficult it is for the second abutting surface 212 to move from the first end of the second inclined portion 120 to the second end of the second inclined portion 120, and the tighter the connection between the door body 30 and the box body 10, thereby improving the sealing of the closed loading and unloading port of the door body 30 by adjusting the inclination angle of the second inclined portion 120.

[0163] The smaller the distance between the second end of the first inclined portion 110, the first end of the second inclined portion 120 and the surface of the fixing member 100, the smaller the user's sense of frustration during the door closing process. The distance between the second end of the first inclined portion 110, the first end of the second inclined portion 120 and the surface of the fixing member 100 can be set to be greater than or equal to 1 mm and less than or equal to 5 mm. For example, the distance between the second end of the first inclined portion 110, the first end of the second inclined portion 120 and the surface of the fixing member 100 can be set to one of 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm and 5 mm to reduce the user's sense of frustration during the door closing process.

[0164] The length of the abutment portion 210 can be set to be greater than or equal to 1 mm and less than or equal to 5 mm. For example, the length of the abutment portion 210 can be set to one of 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm and 5 mm to reduce the user's sense of frustration during the door closing process.

[0165] The smaller the inclination angle of the first inclined portion 110 is, the less frustration the user feels during the door closing process. The inclination angle of the first inclined portion 110 can be set to be less than or equal to 40 degrees. For example, the inclination angle of the first inclined portion 110 can be set to one of 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees and 40 degrees to reduce the frustration the user feels during the door closing process.

[0166] Furthermore, during the process of the door body 30 rotating and closing, when the bottom of the abutment portion 210 moves to the surface of the fixed part 100 facing the movable part 200, the distance between the second end of the first inclined part 110, the first end of the second inclined part 120 and the bottom of the abutment portion 210 can be set to be greater than or equal to 1 mm and less than or equal to 3 mm. For example, the distance between the second end of the first inclined part 110, the first end of the second inclined part 120 and the bottom of the abutment portion 210 can be set to 1 mm, 1.5 mm, 2 mm, 2.5 mm and 3 mm to make the process of the door body rotating and closing more stable.

[0167] It is easy to understand that during the process of the door body 30 rotating and closing, the lower end of the door body 30 is spaced apart from the top surface of the fixing member 100, and the distance between the lower end of the door body 30 and the top surface of the fixing member 100 can be set to be greater than or equal to 0.5 mm and less than or equal to 2.5 mm. For example, the distance between the lower end of the door body 30 and the top surface of the fixing member 100 can be set to one of 0.5 mm, 1 mm, 1.5 mm, 2 mm and 2.5 mm, and the smaller the distance between the lower end of the door body 30 and the top surface of the fixing member 100, the more compact the overall structure of the gravity self-closing structure.

[0168] Reference Figure 20-Figure 22 In some embodiments, the inclined surface of the first inclined portion 110 and the inclined surface of the second inclined portion 120 can be set in the same vertical plane as the moving path, that is, the inclined surface of the first inclined portion 110 and the inclined surface of the second inclined portion 120 are both facing the vertical direction; or, the inclined surface of the first inclined portion 110 and the inclined surface of the second inclined portion 120 can also face the first hinge axis 41 and the second hinge axis 42. When the movable part 200 rotates relative to the fixed part 100 through the first hinge axis 41 and the second hinge axis 42, the abutment portion 210 can abut against the surfaces of the first inclined portion 110 and the second inclined portion 120 facing the first hinge axis 41 and the second hinge axis 42.

[0169] For example, on the surface of the fixed part 100 facing the movable part 200, the first inclined portion 110 and the second inclined portion 120 integrally form a raised structure, the first surface of the raised structure faces the first hinge axis 41 and the second hinge axis 42, the second surface of the raised structure turns away from the first hinge axis 41 and the second hinge axis 42, the first surface of the raised structure forms an inclined surface of the first inclined portion 110 and an inclined surface of the second inclined portion 120 connected to each other, and the first surface of the raised structure also forms an arc surface.

[0170] On the surface of the movable part 200 facing the fixed part 100, the first surface of the abutment portion 210 faces the first track groove 50 and the second track groove 60, and the second surface of the abutment portion 210 faces away from the first track groove 50 and the second track groove 60, and the second surface of the abutment portion 210 forms a first abutment surface 211 and a second abutment surface 212 connected to each other; when the movable part 200 rotates relative to the fixed part 100 through the first hinge shaft 41 and the second hinge shaft 42, the abutment portion 210 is arranged on the first surface of the protruding structure.

[0171] In some embodiments, the position of the first inclined portion 110 and the position of the second inclined portion 120 can be determined according to the opening angle of the door body 30; for example, the opening angle of the door body 30 It can have a first setting angle, a second setting angle and a third setting angle that decrease in sequence, wherein when the opening angle of the door body 30 is set to the first setting angle, the abutment portion 210 abuts against the first end of the first inclined portion 110; when the opening angle of the door body 30 is set to the second setting angle, the abutment portion 210 abuts against the second end of the first inclined portion 110; when the opening angle of the door body 30 is set to the third setting angle, the abutment portion 210 abuts against the second end of the second inclined portion 120.

[0172] For example, when the opening angle of the door body 30 is Set to: 15 degrees ≤ ≤25 degrees, the abutting portion 210 abuts against the first inclined portion 110, and when the opening angle of the door body 30 is degrees, the opening angle of the door body 30 is set to a first set angle, the abutting portion 210 abuts against the first end of the first inclined portion 110, and when the opening angle of the door body 30 is degrees, the opening angle of the door body 30 is set to the second set angle, and the abutting portion 210 abuts against the second end of the first inclined portion 110; when the opening angle of the door body 30 is Set to: 5 degrees ≤ When the opening angle of the door body 30 is less than 15 degrees, the abutting portion 210 abuts against the second inclined portion 120. degrees, the opening angle of the door body 30 is set to a third setting angle, the abutting portion 210 abuts against the second end of the second inclined portion 120, and when the opening angle of the door body 30 is When the angle of the abutting portion 210 is greater than 100 degrees, the abutting portion 210 can move from the second end of the first inclined portion 110 toward the first end of the second inclined portion 120 .

[0173] During the process of the door body 30 rotating and closing, when the opening angle of the door body 30 When the door 30 is opened at an angle of 1.5°, the contact portion 210 contacts the surface of the fixing member 100, and the contact portion 210 is located on the side of the first inclined portion 110 away from the second inclined portion 120. When the opening angle of the door body 30 is Set to: 15 degrees ≤ When the angle is ≤25 degrees, the abutting portion 210 abuts against the first inclined portion 110 , and the movable member 200 drives the door body 30 to move upward through the abutting portion 210 ;

[0174] When the door is opened at an angle of 30 degrees, the abutment portion 210 can move from the second end of the first inclined portion 110 to the first end of the second inclined portion 120; when the opening angle of the door body 30 is Set to: 5 degrees ≤ When the opening angle of the door body 30 is less than 15 degrees, the abutting portion 210 abuts against the second inclined portion 120, and the door body 30 can drive the abutting portion 210 to move downward under the action of gravity, so as to drive the abutting portion 210 to move to the second end of the second inclined portion 120; when the opening angle of the door body 30 is When the angle is 0.5, the abutting portion 210 abuts against the second end of the second inclined portion 120, and the door seal 5 located on the rear wall of the door body 30 fits with the front end surface of the box body 10 to effectively seal the connection between the door body 30 and the box body 10.

[0175] It should be noted that if the user pushes the door body 30 to rotate and close the door body 30, the door body 30 will have a jumping process of first upward and then downward when the abutting portion 210 abuts against the first inclined portion 110 and the second inclined portion 120 in sequence, thereby causing the user to have a certain sense of frustration. The distance between the second end of the first inclined portion 110, the first end of the second inclined portion 120 and the surface of the fixing member 100 can be adjusted to change the moving distance of the door body 30 in the vertical direction, thereby reducing the user's sense of frustration during the door closing process and improving the user's experience.

[0176] For example, when the opening angle of the door body 30 is degrees, the opening angle of the door body 30 is set to the first setting angle. degrees, the opening angle of the door body 30 is set to the second set angle; when the opening angle of the door body 30 degrees, the opening angle of the door body 30 is set to a third set angle.

[0177] At this time, on the surface of the fixed part 100 facing the movable part 200, the central angle corresponding to the first end of the first inclined portion 110 and the second end of the second inclined portion 120 is set to 37 degrees, that is, when the abutment portion 210 moves between the first end of the first inclined portion 110 and the second end of the second inclined portion 120, the rotation angle of the door body 30 is 37 degrees.

[0178] It should be noted that, with respect to the surface of the fixed member 100 facing the movable member 200, the central angle corresponding to the first end of the first inclined portion 110 and the second end of the second inclined portion 120 can be set to be greater than or equal to 10 degrees and less than or equal to 45 degrees. For example, the central angle corresponding to the first end of the first inclined portion 110 and the second end of the second inclined portion 120 can be set to one of 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees and 45 degrees.

[0179] The difference between the first setting angle and the third setting angle can be greater than or equal to 10 degrees and less than or equal to 45 degrees, so that the abutment portion 210 moves faster from the first end of the first inclined portion 110 to the second end of the second inclined portion 120, thereby reducing the user's sense of frustration during the door closing process and improving the use effect of the gravity self-closing structure.

[0180] The difference between the first set angle and the second set angle can be greater than or equal to the difference between the second set angle and the third set angle, so that the inclination angle of the first inclined portion 110 is less than or equal to the inclination angle of the second inclined portion 120. When the inclination angle of the first inclined portion 110 is smaller, the user's sense of frustration during door closing is smaller. When the door body 30 is in a closed state, the larger the inclination angle of the second inclined portion 120, the more difficult it is for the abutment portion 210 to move from the first end of the second inclined portion 120 to the second end of the second inclined portion 120, and the tighter the combination between the door body 30 and the box body 10, so that the sealing of the closed access port of the door body 30 can be improved by adjusting the inclination angle of the second inclined portion 120.

[0181] For example, the first setting angle, the second setting angle and the third setting angle of the door body 30 can be changed by adjusting the position and length of the first inclined portion 110 and the second inclined portion 120 to change the moving time of the door body 30 in the vertical direction. For example, when the length of the first inclined portion 110 increases, the moving time of the door body 30 in the vertical direction increases, and the difference between the second setting angle and the first setting angle increases; when the length of the second inclined portion 120 increases, the moving time of the door body 30 in the vertical direction increases, and the difference between the third setting angle and the second setting angle increases; when the distance between the second end of the first inclined portion 110 and the first end of the second inclined portion 120 and the surface of the fixing member 100 remains unchanged, the inclination angle of the first inclined portion 110 decreases, and the inclination angle of the second inclined portion 120 increases.

[0182] In addition, the position of the first set angle of the door body 30 can be changed by adjusting the position of the first end of the first inclined portion 110, and the position of the third set angle of the door body 30 can be adjusted by adjusting the position of the second end of the second inclined portion 120 to determine the movement time of the door body 30 in the vertical direction.

[0183] For example, the length of the first inclined portion 110 may be equal to the length of the second inclined portion 120, so that the inclination angle of the first inclined portion 110 is equal to the inclination angle of the second inclined portion 120; or, the length of the first inclined portion 110 may be greater than the length of the second inclined portion 120, so that the inclination angle of the first inclined portion 110 is smaller than the inclination angle of the second inclined portion 120; or, the length of the first inclined portion 110 may be smaller than the length of the second inclined portion 120, and the inclination length of the first inclined portion 110 is greater than the inclination angle of the second inclined portion 120.

[0184] For example, when the opening angle of the door body 30 is Set to: 15 degrees ≤ ≤45 degrees, the abutting portion 210 abuts against the first inclined portion 110, and when the opening angle of the door body 30 is degrees, the opening angle of the door body 30 is set to a first set angle, the abutting portion 210 abuts against the first end of the first inclined portion 110, and when the opening angle of the door body 30 is degrees, the opening angle of the door body 30 is set to the second set angle, and the abutting portion 210 abuts against the second end of the first inclined portion 110; when the opening angle of the door body 30 is Set to: 8 degrees ≤ When the opening angle of the door body 30 is less than 15 degrees, the abutting portion 210 abuts against the second inclined portion 120. degrees, the opening angle of the door body 30 is set to a third setting angle, the abutting portion 210 abuts against the second end of the second inclined portion 120, and when the opening angle of the door body 30 is When the angle of the abutting portion 210 is greater than 100 degrees, the abutting portion 210 can move from the second end of the first inclined portion 110 toward the first end of the second inclined portion 120 .

[0185] In some embodiments, the position of the first inclined portion 110 and the position of the second inclined portion 120 can also be determined according to the relative positions of the first hinge shaft 41 and the first track groove 50, and the relative positions of the second hinge shaft 42 and the second track groove 60, so as to improve the stability of the movement process of the first hinge shaft 41 and the second hinge shaft 42.

[0186] Implementation Method 1

[0187] Reference Figure 12-Figure 17 , Figure 20-Figure 22 ,as well as Figure 23-Figure 27 When the inflection point of the first track groove 50 and the inflection point of the second track groove 60 correspond to different angles of the door body 30, when the door body 30 rotates to close to the first set angle, the first hinge axis 41 passes through the first inflection point, and the second hinge axis 42 moves toward the second inflection point; that is, when the positioning center axis P passes through the first inflection point U, and the guide center axis Q does not move to the second inflection point V, combined with the door body 30 rotating to a specific angle (including the first angle G1, the second angle G2, the third angle G3, the fourth angle G4 and the maximum angle G5), the door body 30 rotates to close to the first set angle, and the first hinge axis 41 passes through the first inflection point, and the second hinge axis 42 moves toward the second inflection point; that is, when the positioning center axis P passes through the first inflection point U, and the guide center axis Q does not move to the second inflection point V, the door body 30 rotates to a specific angle (including the first angle G1, the second angle G2, the third angle G3, the fourth angle G4 and the maximum angle G5). max ), the positions of the two hinge axes relative to the two track grooves can be known, and the matching relationship between the first hinge axis and the first track groove 50, and the second hinge axis and the second track groove 60 includes the following situations.

[0188] In the first stage, the door body 30 is made of G max Rotate closed to G4;

[0189] In the first stage, the first hinge axis moves linearly along the straight groove section of the first trajectory groove 50, and the average movement speed of the first hinge axis relative to the straight groove section of the first trajectory groove 50 is recorded as the first average speed ν1;

[0190] For example, the positioning center axis P moves from the sixth positioning point P6 along the curved track segment of the first track line S in a direction away from the door side wall 32 and away from the door front wall 31, and the guide center axis Q moves from the sixth guide point Q6 along the second track line K in a direction away from the door side wall 32 and away from the door front wall 31. For example, the positioning center axis P moves from the sixth positioning point P6 along the curved track segment of the first track line S to the fifth positioning point P5; the guide center axis Q moves from the sixth guide point Q6 along the second track line K to the fifth guide point Q5.

[0191] Reference Fig.23 and Fig.24 , in the door body 30 by G max During the process of rotating to close to G4, the first hinge axis moves along the curved trajectory segment of the first trajectory line S in the direction away from the door side wall 32 and away from the door front wall 31. For every unit angle of rotation of the door body 30 to close, the speed at which the first hinge axis moves away from the door front wall 31 is approximately equal to the speed at which it moves away from the door side wall 32 (for example, the difference between the two speeds may be less than 1 mm).

[0192] Furthermore, in the first stage, the contact portion 210 always contacts the surface of the fixed member 100 facing the movable member 200 , is located on the surface of the first inclined portion 110 away from the second inclined portion 120 , and moves toward the first end of the first inclined portion 110 .

[0193] The first inflection point U of the first trajectory groove 50 can be set between the sixth positioning point P6 and the fifth positioning point P5; in the first stage, the first hinge axis moves linearly along the straight groove section of the first trajectory groove 50, the positioning center axis P passes through the first inflection point U of the first trajectory groove 50, and the second hinge axis 42 moves in the second trajectory groove 60.

[0194] In the second stage, the door body 30 is rotated and closed from G4 to G3;

[0195] Reference Fig.24 and Fig.25 In the second stage, the first hinge axis moves in a curve along the curved groove section of the first trajectory groove 50, and the average movement speed of the first hinge axis relative to the curved groove section of the first trajectory groove 50 is recorded as the second average speed ν2, and the relationship between the first average speed and the second average speed satisfies: ν1>ν2;

[0196] The door body 30 is closed from G4 to G3 to G2, and the positioning center axis P moves from the fifth positioning point P5 along the curved trajectory segment of the first trajectory line S toward the direction close to the door side wall 32 and close to the door front wall 31, and the guide center axis Q moves from the fifth guide point Q5 along the second trajectory line K toward the direction away from the door side wall 32 and close to the door front wall 31.

[0197] For example, refer to 15 and Fig.16 The positioning center axis P moves from the fifth positioning point P5 along the curved trajectory segment of the first trajectory line S through the fourth positioning point P4 to the third positioning point P3; the guiding center axis Q moves from the fifth guiding point Q5 along the second trajectory line K through the fourth guiding point Q4 to the third guiding point Q3.

[0198] And, refer to Fig.24 and Fig.25 In the second stage, the first setting angle can be set between the fourth angle G4 and the third angle G3, and the second inflection point V of the second track groove 60 can be set between the fourth guide point Q4 and the third guide point Q3; for example, when the door body 30 is at the fourth angle G4, the positioning center axis P passes through the inflection point of the first track groove 50, and then the positioning center axis P passes through the fifth positioning point P5 and moves toward the fourth positioning point P4, and the guiding center axis Q of the second hinge shaft 42 passes through the fifth guiding point Q5 and moves to the fourth guiding point Q4, refer to Fig. 20 and Fig.21 , the abutting portion 210 can move from the surface of the fixing member 100 to the first end of the first inclined portion 110 , and move along the first end of the first inclined portion 110 toward the second end of the first inclined portion 110 ;

[0199] The second angle G2 can be reused to form a second set angle. For example, when the positioning center axis P of the first hinge shaft 41 moves to the third positioning point P3, and the guide center axis Q of the second hinge shaft 42 moves to the third guide point Q3, the abutment portion 210 can move from the first end of the first inclined portion 110 to the second end of the first inclined portion 110; and, in the process of the guide center axis Q moving from the fourth guide point Q4 toward the third guide point Q3, the guide center axis Q passes through the second inflection point V.

[0200] When the door body 30 is at the third angle G3, the guide central axis Q moves to the inflection point (i.e., the second inflection point V) of the second track groove 60, and the abutting portion 210 abuts against the first inclined portion 110 and slides upwardly, and the abutting portion 210 is located between the first end of the first inclined portion 110 and the second end of the first inclined portion 110. When the door body 30 is closed from G4 to G3 to G2, the abutting portion 210 moves along the first end of the first inclined portion 110 to the second end of the first inclined portion 110, thereby driving the door body 30 to move upward in the vertical direction.

[0201] In the third stage, the door body 30 is rotated and closed by G2 to a closed state;

[0202] In the third stage, the first hinge axis moves in a curve along the curved groove section of the first trajectory groove 50, and the positioning center axis P moves from the third positioning point P3 along the straight trajectory section of the first trajectory line S toward the direction away from the door side wall 32; the guide center axis Q moves from the third guide point Q3 along the second trajectory line K toward the direction away from the door side wall 32 and away from the door front wall 31.

[0203] For example, the positioning center axis P moves from the third positioning point P3 along the straight trajectory segment of the first trajectory line S through the second positioning point P2 to the first positioning point P1; the guiding center axis Q moves from the third guiding point Q3 along the second trajectory line K through the second guiding point Q2 to the first guiding point Q1.

[0204] And, refer to Fig. 22 , Figure 25-27 In the third stage, the first angle G1 can be reused to form a third set angle. For example, when the door body 30 is closed from G2 to G1, the positioning center axis P of the first hinge shaft 41 moves toward the second positioning point P2, and the guiding center axis Q of the second hinge shaft 42 moves toward the second guiding point Q2. The door body 30 can move from the second end of the first inclined portion 110 to the first end of the second inclined portion 120, and can move along the first end of the second inclined portion 120 toward the second end of the second inclined portion 120, thereby driving the door body 30 to move downward in the vertical direction. When the positioning center axis P of the first hinge shaft 41 moves to the second positioning point P2, and the guiding center axis Q of the second hinge shaft 42 moves to the second guiding point Q2, the abutment portion 210 moves to the second end of the second inclined portion 120;

[0205] During the process of the door body 30 closing from G1 to the closed state, the positioning center axis P of the first hinge shaft 41 moves toward the first positioning point P1, and the guide center axis Q of the second hinge shaft 42 moves toward the first guide point Q1, and the abutment portion 210 can move from the second end of the second inclined portion 120 to the surface of the fixed part 100 facing the movable part 200, and the abutment portion 210 moves to the side of the second inclined portion 120 away from the first inclined portion 110, and the door seal 5 located on the rear wall of the door body 30 moves toward the front end face of the box body 10, so that the door body 30 can move to the closed state.

[0206] Furthermore, in the process of the door body 30 closing from G1 to the closed state, the door seal 5 can gradually contact the front end surface of the box body 10, thereby gradually increasing the bonding force between the door body 30 and the box body 10, and under the action of the gravity of the door body 30, the door body 30 can drive the abutment portion 210 to move downward in the vertical direction on the surface of the second inclined portion 120, thereby making the process of the door body 30 closing from G1 to the closed state smoother, further reducing the possibility of a gap between the door body 30 and the box body 10.

[0207] Implementation Method 2

[0208] Reference Figure 12-Figure 17 , Figure 20-Figure 22 ,as well as Figure 28-Figure 32 When the inflection point of the first track groove 50 and the inflection point of the second track groove 60 correspond to different angles of the door body 30, when the door body 30 rotates and closes to the first set angle, the first hinge shaft 41 moves toward the first inflection point, and the second hinge shaft 42 passes the second inflection point, that is, the positioning center axis P does not move to the first inflection point U, and the guide center axis Q passes the second inflection point V, combined with the door body 30 rotating to a specific angle (including the first angle G1, the second angle G2, the third angle G3, the fourth angle G4 and the maximum angle G5), the door body 30 rotates to the first set angle, and the second hinge shaft 42 passes the second inflection point. max ), the positions of the two hinge axes relative to the two track grooves can be known, and the matching relationship between the first hinge axis and the first track groove 50, and the second hinge axis and the second track groove 60 includes the following situations.

[0209] In the first stage, the door body 30 is made of G max Rotate closed to G4;

[0210] In the first stage, the first hinge axis moves linearly along the straight groove section of the first trajectory groove 50, and the average movement speed of the first hinge axis relative to the straight groove section of the first trajectory groove 50 is recorded as the first average speed ν1;

[0211] For example, the positioning center axis P moves from the sixth positioning point P6 along the curved track segment of the first track line S in a direction away from the door side wall 32 and away from the door front wall 31, and the guide center axis Q moves from the sixth guide point Q6 along the second track line K in a direction away from the door side wall 32 and away from the door front wall 31. For example, the positioning center axis P moves from the sixth positioning point P6 along the curved track segment of the first track line S to the fifth positioning point P5; the guide center axis Q moves from the sixth guide point Q6 along the second track line K to the fifth guide point Q5.

[0212] Reference Fig.28 and Fig.29 , in the door body 30 by G max During the process of rotating to close to G4, the first hinge axis moves along the curved trajectory segment of the first trajectory line S in the direction away from the door side wall 32 and away from the door front wall 31. For every unit angle of rotation of the door body 30 to close, the speed at which the first hinge axis moves away from the door front wall 31 is approximately equal to the speed at which it moves away from the door side wall 32 (for example, the difference between the two speeds may be less than 1 mm).

[0213] Furthermore, in the first stage, the contact portion 210 always contacts the surface of the fixed member 100 facing the movable member 200 , is located on the surface of the first inclined portion 110 away from the second inclined portion 120 , and moves toward the first end of the first inclined portion 110 .

[0214] The second inflection point V of the second trajectory groove 60 can be set between the sixth guide point Q6 and the fifth guide point Q5; in the first stage, the first hinge axis moves linearly along the straight groove section of the first trajectory groove 50, the positioning center axis P does not move to the first inflection point U of the first trajectory groove 50, the second hinge axis 42 moves in the second trajectory groove 60, and the guide center axis Q passes through the second inflection point V of the second trajectory groove 60.

[0215] In the second stage, the door body 30 is rotated and closed from G4 to G3;

[0216] Reference Fig.29 and Fig.30 In the second stage, the first hinge axis moves in a curve along the curved groove section of the first trajectory groove 50, and the average movement speed of the first hinge axis relative to the curved groove section of the first trajectory groove 50 is recorded as the second average speed ν2, and the relationship between the first average speed and the second average speed satisfies: ν1>ν2;

[0217] The door body 30 is closed from G4 to G3 to G2, and the positioning center axis P moves from the fifth positioning point P5 along the curved trajectory segment of the first trajectory line S toward the direction close to the door side wall 32 and close to the door front wall 31, and the guide center axis Q moves from the fifth guide point Q5 along the second trajectory line K toward the direction away from the door side wall 32 and close to the door front wall 31.

[0218] For example, refer to Fig.15 and Fig.16 The positioning center axis P moves from the fifth positioning point P5 along the curved trajectory segment of the first trajectory line S through the fourth positioning point P4 to the third positioning point P3; the guiding center axis Q moves from the fifth guiding point Q5 along the second trajectory line K through the fourth guiding point Q4 to the third guiding point Q3.

[0219] Furthermore, in the second stage, the first setting angle may be set between the fourth angle G4 and the third angle G3, and the first inflection point U of the first track groove 50 may be set between the fourth positioning point P4 and the third positioning point P3; for example, when the door body 30 is at the fourth angle G4, the guide center axis Q moves to the inflection point (i.e., the second inflection point V) of the second track groove 60;

[0220] Then, the positioning center axis P passes through the fifth positioning point P5 and moves toward the fourth positioning point P4, and the guide center axis Q of the second hinge shaft 42 passes through the fifth guide point Q5 (i.e., the second inflection point V) and moves to the fourth guide point Q4, and the abutting portion 210 can move from the surface of the fixing member 100 to the first end of the first inclined portion 110, and move along the first end of the first inclined portion 110 toward the second end of the first inclined portion 110;

[0221] The second angle G2 can be reused to form a second set angle. For example, when the positioning center axis P of the first hinge shaft 41 moves to the third positioning point P3, and the guide center axis Q of the second hinge shaft 42 moves to the third guide point Q3, the abutment portion 210 can move from the first end of the first inclined portion 110 to the second end of the first inclined portion 110; and, in the process of the positioning center axis P moving from the fourth positioning point P4 toward the third positioning point P3, the positioning center axis P passes through the first inflection point U.

[0222] When the door body 30 is at the third angle G3, the positioning center axis P passes through the inflection point (i.e., the first inflection point U) of the first track groove 50, and the abutting portion 210 can abut against the first inclined portion 110 and slide upwardly, and the abutting portion 210 is located between the first end of the first inclined portion 110 and the second end of the first inclined portion 110. When the door body 30 is closed from G4 to G3 to G2, the abutting portion 210 moves along the first end of the first inclined portion 110 to the second end of the first inclined portion 110, thereby driving the door body 30 to move upward in the vertical direction.

[0223] In the third stage, the door body 30 is rotated and closed by G2 to a closed state;

[0224] In the third stage, the first hinge axis moves in a curve along the curved groove section of the first trajectory groove 50, and the positioning center axis P moves from the third positioning point P3 along the straight trajectory section of the first trajectory line S toward the direction away from the door side wall 32; the guide center axis Q moves from the third guide point Q3 along the second trajectory line K toward the direction away from the door side wall 32 and away from the door front wall 31.

[0225] For example, the positioning center axis P moves from the third positioning point P3 along the straight trajectory segment of the first trajectory line S through the second positioning point P2 to the first positioning point P1; the guiding center axis Q moves from the third guiding point Q3 along the second trajectory line K through the second guiding point Q2 to the first guiding point Q1.

[0226] And, refer to Fig. 22 , Figure 30-Figure 32 In the third stage, the first angle G1 can be reused to form a third set angle. For example, when the door body 30 is closed from G2 to G1, the positioning center axis P of the first hinge shaft 41 moves toward the second positioning point P2, and the guiding center axis Q of the second hinge shaft 42 moves toward the second guiding point Q2. The door body 30 can move from the second end of the first inclined portion 110 to the first end of the second inclined portion 120, and can move along the first end of the second inclined portion 120 toward the second end of the second inclined portion 120, thereby driving the door body 30 to move downward in the vertical direction. When the positioning center axis P of the first hinge shaft 41 moves to the second positioning point P2, and the guiding center axis Q of the second hinge shaft 42 moves to the second guiding point Q2, the abutment portion 210 moves to the second end of the second inclined portion 120;

[0227] During the process of the door body 30 closing from G1 to the closed state, the positioning center axis P of the first hinge shaft 41 moves toward the first positioning point P1, and the guide center axis Q of the second hinge shaft 42 moves toward the first guide point Q1, and the abutment portion 210 can move from the second end of the second inclined portion 120 to the surface of the fixed part 100 facing the movable part 200, and the abutment portion 210 moves to the side of the second inclined portion 120 away from the first inclined portion 110, and the door seal 5 located on the rear wall of the door body 30 moves toward the front end face of the box body 10, so that the door body 30 can move to the closed state.

[0228] Furthermore, in the process of the door body 30 closing from G1 to the closed state, the door seal 5 can gradually contact the front end surface of the door body 30, thereby gradually increasing the bonding force between the door body 30 and the box body 10, and under the action of the gravity of the door body 30, the door body 30 can drive the abutment portion 210 to move downward in the vertical direction on the surface of the second inclined portion 120, thereby making the process of the door body 30 closing from G1 to the closed state smoother, further reducing the possibility of a gap between the door body 30 and the box body 10.

[0229] It should be noted that, taking the movement process of the positioning center axis P in the first trajectory groove 50 as an example, “not moved to” means that the positioning center axis P is before a certain point in the first trajectory groove 50, “moved to” means that the positioning center axis P is located at a certain point in the first trajectory groove 50, and “passed by” means that the positioning center axis P is after a certain point in the first trajectory groove 50.

[0230] In some embodiments, the abutment portion 210 can be set as a columnar abutment portion 210, the first end of the columnar abutment portion 210 is connected to the surface of the movable part 200 facing the fixed part 100, the columnar abutment portion 210 extends in the vertical direction, the second end of the columnar abutment portion 210 forms the bottom of the abutment portion 210, and the second end of the columnar abutment portion 210 is used to abut the surface of the fixed part 100 facing the movable part 200, the first inclined portion 110 and the second inclined portion 120, so as to drive the door body 30 to move in the vertical direction through the columnar abutment portion 210.

[0231] The abutment portion 210 can also be set as a roller-type abutment portion 210, which can be rotatably set on the surface of the movable part 200 facing the fixed part 100, and the peripheral surface of the roller-type abutment portion 210 is used to abut against the inclined surface of the first inclined portion 110 and the inclined surface of the second inclined surface. The bottom end of the peripheral surface of the roller-type abutment portion 210 forms the bottom of the abutment portion 210, and the rotation axis of the roller-type abutment portion 210 can be parallel to the inclined surface of the first inclined portion 110 and the inclined surface of the second inclined portion 120.

[0232] In a second aspect, an embodiment of the present application provides a refrigerator, including a cabinet 10, a door 30 and a gravity self-closing structure, wherein the door 30 is used to close or open the accommodating cavity of the cabinet 10; the opening angle of the door 30 relative to the cabinet 10 has a first setting angle, a second setting angle and a third setting angle that decrease in sequence;

[0233] The gravity self-closing structure is arranged at the lower end of the door body 30, and the gravity self-closing structure includes a fixed part 100 and a movable part 200, the fixed part 100 is arranged on the box body 10, and the movable part 200 is arranged on the door body 30; the movable part 200 is provided with a first track groove 50 and a second track groove 60 facing the fixed part 100, the first track groove 50 has a first inflection point, and the second track groove 60 has a second inflection point; the fixed part 100 is provided with a first hinge shaft 41 and a second hinge shaft 42, the first hinge shaft 41 can be relatively movably arranged in the first track groove 50, and the second hinge shaft 42 can be relatively movably arranged in the second track groove 60;

[0234] The surface of the fixing member 100 facing the movable member 200 is further provided with a first inclined portion 110 and a second inclined portion 120, wherein a first end of the first inclined portion 110 is connected to a first portion of the fixing member 100, and a second end of the first inclined portion 110 is inclined upward; a first end of the second inclined portion 120 is connected to a second end of the first inclined portion 110, and a second end of the second inclined portion 120 is inclined downward, and a second end of the second inclined portion 120 is connected to a second portion of the fixing member 100;

[0235] The movable member 200 is provided with an abutting portion 210 , and the abutting portion 210 is used to abut against the first inclined portion 110 and the second inclined portion 120 ;

[0236] When the door body 30 rotates and closes to the first set angle, the abutting portion 210 is movably disposed on the first portion of the fixing member 100, the first hinge shaft 41 passes through the first inflection point, and the second hinge shaft 42 passes through the second inflection point;

[0237] When the door body 30 rotates and closes to the first set angle, the abutting portion 210 is movably disposed on the first portion of the fixing member 100, the first hinge shaft 41 moves toward the first inflection point, and the second hinge shaft 42 moves toward the second inflection point;

[0238] When the door body 30 is located at the first set angle, the first hinge shaft 41 is located at the first inflection point, the second hinge shaft 42 is located at the second inflection point, and the abutting portion 210 is located at the first end of the first inclined portion 110;

[0239] During the process of the door body 30 rotating and closing from the first set angle to the second set angle, the abutment portion 210 moves obliquely upward from the first end of the first inclined portion 110 to the second end of the first inclined portion 110; during the process of the door body 30 rotating and closing from the second set angle to the third set angle, the abutment portion 210 moves obliquely downward from the first end of the second inclined portion 120 to the second end of the second inclined portion 120.

[0240] On the surface of the fixed part 100 facing the movable part 200, the central angle corresponding to the first end of the first inclined portion 110 and the second end of the second inclined portion 120 can be set to be greater than or equal to 10 degrees and less than or equal to 45 degrees. For example, the central angle corresponding to the first end of the first inclined portion 110 and the second end of the second inclined portion 120 can be set to one of 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees and 45 degrees.

[0241] The difference between the first setting angle and the third setting angle can be greater than or equal to 10 degrees and less than or equal to 45 degrees, so that the abutment portion 210 moves faster from the first end of the first inclined portion 110 to the second end of the second inclined portion 120, thereby reducing the user's sense of frustration during the door closing process and improving the use effect of the gravity self-closing structure.

[0242] The difference between the first set angle and the second set angle can be greater than or equal to the difference between the second set angle and the third set angle, so that the inclination angle of the first inclined portion 110 is less than or equal to the inclination angle of the second inclined portion 120. When the inclination angle of the first inclined portion 110 is smaller, the user's sense of frustration during door closing is smaller. When the door body 30 is in a closed state, the larger the inclination angle of the second inclined portion 120, the more difficult it is for the abutment portion 210 to move from the first end of the second inclined portion 120 to the second end of the second inclined portion 120, and the tighter the combination between the door body 30 and the box body 10, so that the sealing of the closed access port of the door body 30 can be improved by adjusting the inclination angle of the second inclined portion 120.

[0243] 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.

[0244] 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, and the gravity self-closing structure includes a matching fixed part and a movable part, the fixed part is fixedly arranged on the box body, and the movable part is fixedly arranged on the door body; The movable member is provided with a first track groove and a second track groove, the first track groove and the second track groove are both facing the fixed member, the first track groove has a first inflection point, and the second track groove has a second inflection point; The fixing member is provided with a first hinge shaft and a second hinge shaft; the first hinge shaft can be relatively movably arranged in the first track groove, and the second hinge shaft can be relatively movably arranged in the second track groove; The fixing member is provided with a first inclined portion and a second inclined portion, wherein the first end of the first inclined portion is connected to the first part of the fixing member, and the second end of the first inclined portion is inclined upward; the first end of the second inclined portion is connected to the second end of the first inclined portion, and the second end of the second inclined portion is inclined downward, and the second end of the second inclined portion is connected to the second part of the fixing member; The movable member is provided with an abutment portion, and the abutment portion is used to abut the first inclined portion and the second inclined portion; When the abutment portion is located at the first end of the first inclined portion, the first hinge axis is located between the first inflection point and the second end of the first track groove; the second hinge axis is located between the first end of the second track groove and the second inflection point; Alternatively, when the abutment portion is located at the first end of the first inclined portion, the first hinge axis is located between the first end of the first track groove and the first inflection point; and the second hinge axis is located between the second inflection point and the second end of the second track groove.

2. The refrigerator according to claim 1, characterized in that: When the first hinge axis is located at the first inflection point, the second hinge axis is located between the first end of the second track groove and the second inflection point, and the abutment portion corresponds to the first portion of the fixing member; Alternatively, when the second hinge axis is located at the second inflection point, the first hinge axis is located between the first end of the first track groove and the first inflection point, and the abutment portion corresponds to the first part of the fixing member.

3. The refrigerator according to claim 1, characterized in that: The first inflection point divides the first track groove into a curved groove segment and a straight groove segment; a portion of the first track groove between the first end of the first track groove and the first inflection point forms the curved groove segment, and a portion of the first track groove between the first inflection point and the second end of the first track groove forms the straight groove segment; The second inflection point divides the second trajectory groove into a first curve segment and a second curve segment; the portion of the second trajectory groove located between the first end of the second trajectory groove and the second inflection point forms the first curve segment, and the portion of the second trajectory groove located between the second inflection point and the second end of the second trajectory groove forms the second curve segment.

4. The refrigerator according to claim 1, characterized in that: The first inflection point divides the first track groove into a first curved portion and a second curved portion; a portion of the first track groove between the first end of the first track groove and the first inflection point forms the first curved portion, and a portion of the first track groove between the first inflection point and the second end of the first track groove forms the second curved portion; The second inflection point divides the second trajectory groove into a first curve segment and a second curve segment; the portion of the second trajectory groove located between the first end of the second trajectory groove and the second inflection point forms the first curve segment, and the portion of the second trajectory groove located between the second inflection point and the second end of the second trajectory groove forms the second curve segment.

5. The refrigerator according to claim 1, characterized in that: The abutting portion comprises a first abutting surface and a second abutting surface connected to each other, the first abutting surface is arranged parallel to the first inclined portion, and the second abutting surface is arranged parallel to the second inclined portion; During the process of the door body rotating and closing, when the abutting portion moves from the first end of the first inclined portion toward the second end of the first inclined portion, the first abutting surface abuts against the first inclined portion, and the door body moves upward in the vertical direction through the movable part; when the abutting portion moves from the first end of the second inclined portion toward the second end of the second inclined portion, the second abutting surface abuts against the second inclined portion, and the door body moves downward in the vertical direction.

6. The refrigerator according to claim 1, characterized in that: The second end of the first inclined portion is connected to the first end of the second inclined portion; Alternatively, an arc surface is provided between the first inclined portion and the second inclined portion, a first end of the arc surface is connected to the second end of the first inclined portion, and a second end of the arc surface is connected to the first end of the second inclined portion.

7. The refrigerator according to any one of claims 1 to 6, characterized in that: The door body further comprises a door rear wall and a door seal, wherein the door rear wall is a side wall of the door body close to the box body; The door seal is arranged on the door rear wall; when the door body is in the closed state, the door seal abuts against the box body to block the gap between the door body and the box body; when the abutting portion abuts against the second inclined portion, the side of the door seal facing away from the door rear wall contacts the box body.

8. A refrigerator, characterized in that: It comprises a box body, a door body and a gravity self-closing structure, wherein the door body is used to close or open the accommodating cavity of the box body; the opening angle of the door body relative to the box body has a first setting angle, a second setting angle and a third setting angle which decrease in sequence; 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, wherein the fixed part is arranged on the box body, and the movable part is arranged on the door body; the movable part is provided with a first track groove and a second track groove facing the fixed part, the first track groove has a first inflection point, and the second track groove has a second inflection point; the fixed part is provided with a first hinge shaft and a second hinge shaft, the first hinge shaft can be relatively movably arranged in the first track groove, and the second hinge shaft can be relatively movably arranged in the second track groove; The surface of the fixing member facing the movable member is further provided with a first inclined portion and a second inclined portion, wherein the first end of the first inclined portion is connected to the first part of the fixing member, and the second end of the first inclined portion is inclined upward; the first end of the second inclined portion is connected to the second end of the first inclined portion, and the second end of the second inclined portion is inclined downward, and the second end of the second inclined portion is connected to the second part of the fixing member; The movable member is provided with an abutment portion, and the abutment portion is used to abut the first inclined portion and the second inclined portion; During the process of the door body rotating and closing to the first set angle, the abutment portion is movably disposed on the first part of the fixing member, the first hinge axis passes through the first inflection point, and the second hinge axis moves toward the second inflection point; Alternatively, during the process of the door body rotating and closing to the first set angle, the abutment portion is movably disposed on the first portion of the fixing member, the first hinge axis moves toward the first inflection point, and the second hinge axis passes through the second inflection point; During the process of the door body rotating and closing from the first setting angle to the second setting angle, the abutment portion moves obliquely upward from the first end of the first inclined portion to the second end of the first inclined portion; during the process of the door body rotating and closing from the second setting angle to the third setting angle, the abutment portion moves obliquely downward from the first end of the second inclined portion to the second end of the second inclined portion.

9. The refrigerator according to claim 8, characterized in that: During the process of the door body rotating and closing from the first setting angle to the second setting angle, the first hinge axis passes through the first inflection point, or the second hinge axis passes through the second inflection point; During the process of the door body rotating and closing from the second setting angle to the third setting angle, the first hinge axis passes through the first inflection point, or the second hinge axis passes through the second inflection point.

10. The refrigerator according to claim 8, characterized in that: The difference between the first setting angle and the third setting angle is greater than or equal to 10 degrees and less than or equal to 45 degrees; And / or, the difference between the first set angle and the second set angle is greater than or equal to the difference between the second set angle and the third set angle.

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