REFRIGERATOR

Description

[0001] The present disclosure claims priority to Chinese Patent Application NO. 202110844775.7, filed with the Chinese Patent Office on July 26, 2021; Chinese Patent Application NO. 202110846078.5, filed with the Chinese Patent Office on July 26, 2021; and Chinese Patent Application NO. 202110844802.0, filed with the Chinese Patent Office on July 26, 2021.TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of refrigerators.BACKGROUND

[0003] Hinge structures of door bodies of refrigerators are mostly in a form of a single shaft. The door body rotates around a hinge shaft by cooperation of the hinge shaft and a bushing of the door body. In a case where the door body with such hinge structure is opened, corners of the door body extend beyond a side of the door body.

[0004] The relevant prior art documents are CN112282542A, US10859307B2, EP3026375B1, US11009285B2, WO2021 / 012652A1 and CN112302450A.SUMMARY

[0005] The present invention is disclosed in the independent claim 1. Further embodiments are disclosed in the dependent claims.

[0006] A refrigerator according to claim 1 is provided. The refrigerator includes a refrigerator body, a door body, and a cold air supply device. The refrigerator body has a storage chamber. The door body is connected to the refrigerator body to open or close the storage chamber. The cold air supply device supplies cold air to the storage chamber. The refrigerator body includes an inner shell, an outer shell, and an insulator. The inner shell defines the storage chamber. The outer shell is connected to an outside of the inner shell, so as to constitute an appearance of the refrigerator. The insulator is disposed between the inner shell and the outer shell to insulate the storage chamber. The storage chamber has an open front portion for putting in and taking out food, and the door body is rotatably connected to the refrigerator body, so as to open and close the open front portion of the storage chamber. The door body is rotatably supported by a hinge located at an upper end of the door body and a hinge located at a lower end of the door body. The hinge located at the upper end of the door body includes a hinge plate, a first hinge shaft, and a second hinge shaft. The hinge plate is connected to an upper end of the refrigerator body. The first hinge shaft and the second hinge shaft are connected to the hinge plate to constitute rotation shafts. The hinge plate includes a connecting portion and a first extending portion. The connecting portion has a substantially horizontal plate shape and connected to the refrigerator body. The first extending portion extends forward from the connecting portion and has a horizontal plate shape. The connecting portion is fixed on the refrigerator body by means of a fastener. In the hinge located at the lower end of the door body, the connecting portion is connected to a front surface of the refrigerator body, the first hinge shaft and the second hinge shaft extend upwards from the hinge plate. Corresponding to positions of the hinge plates, the upper and lower ends of the door body each are provided with a first trajectory slot and a second trajectory slot. In a case where the hinge plate is located on a right side of the refrigerator body, a right side of the door body is a side wall. In a case where the hinge plate is located on a left side of the refrigerator body, a left side of the door body is the side wall. A front wall and the side wall of the door body meet to constitute a side edge. The door body includes a mounting block. The mounting block is installed at a position of the door body corresponding to the hinge plate, and the first trajectory slot and the second trajectory slot are disposed on the mounting block. The mounting block includes an upper mounting block disposed at the upper end of the door body and a lower mounting block disposed at the lower end of the door body. An upper surface of a plate body extends upwards to constitute a second extending portion of the lower mounting block. The first trajectory slot and the second trajectory slot are recessed upwards from a lower surface of the plate body to the second extending portion. A lower accommodating groove is disposed at the lower end of the door body. The lower mounting block is inserted into the lower accommodating groove, and the plate body is fixedly connected to the door body by means of a screw. The lower mounting block includes a locking hook structure. The lower mounting block includes a locking hook disposed on an inner side of the plate body, the locking hook extends inwards and is bent towards a rear side. An opening of the locking hook faces the plate body, and a free end of the locking hook is located on the rear side. A blocking portion is disposed on an inner side of the hinge plate located at the lower end of the door body and extends outwards. In a case where the door body is in a closed state, the locking hook on the door body hooks the blocking portion on the hinge plate. A limiting block is disposed at the lower end of the door body and located at a front end of the lower mounting block. In a case where the door body rotates to a maximum allowable position, the limiting block abuts against a side of the hinge plate, so as to prevent the door body from continuing to rotate. In a case where the door body is in the closed state, the first hinge shaft is closer to the side wall and farther away from the front wall than the second hinge shaft. A vertical distance between the first hinge shaft and the second hinge shaft in a front-rear direction is greater than or equal to 2.5 mm and less than or equal to 10 mm. a vertical distance between the first hinge shaft and the second hinge shaft in a left-right direction is greater than or equal to 7.5 mm and less than or equal to 30 mm. in a case where the door body is in the closed state, the first hinge shaft is located at an end portion of the first trajectory slot, and the second hinge shaft is located at an end portion of the second trajectory slot. The first hinge shaft moves from an end of the first trajectory slot to another end of the first trajectory slot and the second hinge shaft moves from an end of the second trajectory slot to another end of the second trajectory slot during an entire process of opening the door body. The first trajectory slot has a first positioning position and a second positioning position. A movement trajectory of the first hinge shaft in the first trajectory slot from the first positioning position to the second positioning position is a first positioning trajectory line. The second trajectory slot has a first guiding position and a second guiding position. A movement trajectory of the second hinge shaft in the second trajectory slot from the first guiding position to the second guiding position is a first guiding trajectory line. In a case where the door body is opened from the closed state to a first state, the first hinge shaft moves from the first positioning position to the second positioning position along the first positioning trajectory line with respect to the first trajectory slot. Meanwhile, the second hinge shaft moves from the first guiding position to the second guiding position along the first guiding trajectory line with respect to the second trajectory slot. The second positioning position is farther away from the front wall and closer to the side wall than the first positioning position, and the first positioning trajectory line extends in a direction away from the front wall and proximate to the side wall. The second guiding position is farther away from the front wall and closer to the side wall than the first guiding position, and the first guiding trajectory line extends in a direction away from the front wall and proximate to the side wall. The first trajectory slot further has a third positioning position. A movement trajectory of the first hinge shaft in the first trajectory slot from the second positioning position to the third positioning position is a second positioning trajectory line. The second trajectory slot further has a third guiding position. A movement trajectory of the second hinge shaft in the second trajectory slot from the second guiding position to the third guiding position is a second guiding trajectory line. In a case where the door body continues to be opened from the first state to a second state, an opening angle of the door body in the second state is less than 90°, the first hinge shaft moves from the second positioning position to the third positioning position along the second positioning trajectory line with respect to the first trajectory slot, the second hinge shaft moves from the second guiding position to the third guiding position along the second guiding trajectory line with respect to the second trajectory slot. The third positioning position is closer to the front wall and the side wall than the second positioning position, and the second positioning trajectory line extends from the second positioning position to the third positioning position in a direction proximate to the front wall and the side wall, so that the door body moves a second distance inward. The third guiding position is farther away from the front wall and closer to the side wall than the second guiding position, and the second guiding trajectory line extends in a direction away from the front wall and proximate to the side wall.BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to describe the technical solutions in the embodiments of the present disclosure or the prior art more clearly, accompanying drawings to be used in the description of the embodiments or the prior art will be introduced briefly below. However, the accompanying drawings to be described below are merely some embodiments of the present application, whereas the invention is disclosed in the following claims. FIG. 1 is a perspective view of a refrigerator, in accordance with some embodiments; FIG. 2 is a top view of a refrigerator, in accordance with some embodiments; FIG. 3 is an enlarged view of a region A in FIG. 2; FIG. 4 is an exploded view of a hinge at an upper right corner of a refrigerator, in accordance with some embodiments; FIG. 5 is a bottom view of a hinge at a lower end of a door body of a refrigerator, in accordance with some embodiments; FIG. 6 is an exploded view of a hinge at a lower end of a door body of a refrigerator, in accordance with some embodiments; FIG. 7 is a diagram showing a relative position of a first hinge shaft and a second hinge shaft, in accordance with some embodiments; FIG. 8 is a diagram of a hinge in a case where a door body of a refrigerator is in a closed state, in accordance with some embodiments; FIG. 9 is a diagram of the hinge in FIG. 8; FIG. 10 is another diagram of the hinge in FIG. 8; FIG. 11 is a diagram of a door body of a refrigerator in a first state, in accordance with some embodiments; FIG. 12 is a diagram of a door body of a refrigerator in a state between a first state and a second state, in accordance with some embodiments; FIG. 13 is a diagram of a door body of a refrigerator in a second state, in accordance with some embodiments; FIG. 14 is a diagram of a door body of a refrigerator in a state with a 90° opening angle, in accordance with some embodiments; FIG. 15 is a diagram of a door body of a refrigerator in a maximum open state, in accordance with some embodiments; FIG. 16 is a diagram of a hinge shaft of a refrigerator, in accordance with some embodiments; FIG. 17 is another exploded view of a hinge at an upper right corner of a refrigerator, in accordance with some embodiments; FIG. 18 is a perspective view of an upper mounting block of a refrigerator, in accordance with some embodiments; FIG. 19 is another exploded view of a hinge at a lower end of a door body of a refrigerator, in accordance with some embodiments; FIG. 20 is a perspective view of a lower mounting block of a refrigerator, in accordance with some embodiments; FIG. 21 is a diagram of a hinge at a lower end of a door body of a refrigerator, in accordance with some embodiments; FIG. 22 is a diagram of a door body of a refrigerator, in accordance with some embodiments; and FIG. 23 is a diagram of a door body of a refrigerator from another perspective, in accordance with some embodiments. DETAILED DESCRIPTION

[0008] Figures 1-5, 7-18 and 21-23 show embodiments being useful for understanding the invention, whereas figures 6, 19 and 20 show embodiments according to the present invention, which disclose a refrigerator according to claim 1.

[0009] In the description of the present disclosure, it will be understood that, orientations or positional relationships indicated by the terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are based on orientations or positional relationships shown in the drawings, which are merely to facilitate and simplify the description of the present disclosure, and are not to indicate or imply that the devices or elements referred to must have a particular orientation, or must be constructed or operated in a particular orientation. Therefore, these terms will not be construed as limitations on the present disclosure.

[0010] The terms such as "first," "second," "third," "fourth" and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined by "first," "second," "third," "fourth" or "fifth" may explicitly or implicitly include one or more of the features.

[0011] In the description of the present disclosure, it will be noted that, unless otherwise explicitly stated and limited, terms such as "installation," "connection," and "connect" should be understood in a broad sense. For example, the terms such as "installation," "connection," and "connect" may represent a fixed connection, a detachable connection, or a one-piece connection; or may represent a direct connection, an indirect connection through an intermediate medium, or a connection that two elements are internally communicated with each. Specific meanings of the above terms in the present disclosure may be understood by those skilled in the art according to specific situations.

[0012] Hereinafter, embodiments of this application will be described in detail with reference to the drawings. In the drawings, a side of a refrigerator facing users during use is defined as a front side, and a side opposite to the front side is defined as a rear side.

[0013] FIG. 1 is a perspective view of a refrigerator, in accordance with some embodiments. Referring to FIG. 1, a refrigerator 1 includes a refrigerator body 10 having a storage chamber 20, a door body 30 connected to the refrigerator body 10 to open and close the storage chamber 20, and a cold air supply device supplying cold air to the storage chamber 20.

[0014] In some embodiments, the cold air supply device includes an evaporator, a compressor, a condenser, and an expansion device, so as to generate cold air by using latent heats of evaporation of refrigerant.

[0015] In some embodiments, the refrigerator body 10 includes an inner shell defining the storage chamber 20, an outer shell connected to an outside of the inner shell to form an appearance of the refrigerator 1, and an insulator disposed between the inner shell and the outer shell to insulate the storage chamber 20.

[0016] In some embodiments, the refrigerator body 10 includes a horizontal partition plate dividing the storage chamber 20 into an upper storage chamber 21 and a lower storage chamber 22, and a vertical partition plate separating the lower storage chamber 22 from a side to another side. The upper storage chamber 21 may be served as a refrigerating chamber for storing food in a refrigerating mode by maintaining air at a temperature within a range of about 0°C to 5°C. The lower storage chamber 22 may be served as a freezing chamber for storing food in a freezing mode by maintaining air at a temperature within a range of 0°C to minus 30°C (i.e., -30°C).

[0017] In some embodiments, the storage chamber 20 has an open front portion to allow food to be put in and taken out, and the open front portion of the storage chamber 20 may be opened and closed by the rotatable door body 30.

[0018] In some embodiments, the door body 30 is rotatably supported by a hinge located on an upper end of the door body 30 and a lower hinge located on a lower end of the door body 30. For example, a hinge may be disposed on the upper end of the door body 30, so as to rotatably support the door body 30.

[0019] FIG. 2 is a top view of a refrigerator, in accordance with some embodiments. FIG. 3 is an enlarged view of the region A in FIG. 2. FIG. 4 is an exploded view of a hinge at an upper right corner of a refrigerator, in accordance with some embodiments. Referring to FIGS. 2 to 4, the hinge includes a first hinge shaft 41, a second hinge shaft 42, a first trajectory slot 50, and a second trajectory slot 60. The first hinge shaft 41 is matched with the first trajectory slot 50, and the second hinge shaft 42 is matched with the second trajectory slot 60. The first hinge shaft 41 moves relatively in the first trajectory slot 50 and the second hinge shaft 42 moves relatively in the second trajectory slot 60 during a process of rotating the door body 30 to be opened or closed.

[0020] For the hinge on an upper end of the door body 30, the hinge includes a hinge plate 40 connected to an upper end of the refrigerator body 10. The first hinge shaft 41 and the second hinge shaft 42 are connected to the hinge plate 40, so as to form rotation shafts. In some embodiments, the hinge plate 40, the first hinge shaft 41, and the second hinge shaft 42 are integrally formed. In some other embodiments, the hinge plate 40, the first hinge shaft 41, and the second hinge shaft 42 are provided separately and assembled from each other.

[0021] Referring to FIG. 4, the hinge plate 40 includes a connecting portion 401 having a substantially horizontal plate shape and connected to the refrigerator body 10, and a first extending portion 402 extending forward from the connecting portion 401 and having a horizontal plate shape. The connecting portion 401 may be fastened onto the refrigerator body 10 by means of fasteners such as screws, pins and bolts.

[0022] In some embodiments, the first hinge shaft 41 and the second hinge shaft 42 are formed on the first extending portion 402 and extend vertically downward.

[0023] FIG. 5 is a bottom view of a hinge at a lower end of a door body of a refrigerator, in accordance with some embodiments. FIG. 6 is an exploded view of a hinge at a lower end of a door body of a refrigerator, in accordance with some embodiments. As shown in FIGS. 5 and 6, for the hinge on a lower end of the door body 30, the connecting portion 401 is connected to a front end surface of the refrigerator body 10. The first hinge shaft 41 and the second hinge shaft 42 are on the hinge plate 40 and extend upward.

[0024] Corresponding to a position of the hinge plate 40, the upper end and the lower end of the door body 30 each are provided with the first trajectory slot 50 and the second trajectory slot 60.

[0025] For convenience of description, a side of left and right sides of the door body 30 proximate to the hinge plate 40 is referred to as a side wall 32. For example, in a case where the hinge plate 40 is located on a right side of the refrigerator body 10, the right side of the door body 30 is the side wall 32; in a case where the hinge plate 40 is located on a left side of the refrigerator body 10, the left side of the door body 30 is the side wall 32. A front wall 31 and the side wall 32 of the door body 30 meet to form a side edge 33.

[0026] With continued reference to FIG. 2, planes where sides of the refrigerator body 10 proximate to the hinge plate 40 are located are defined as a reference plane O. Aside of the reference plane O proximate to a cabinet is an outer side, and another side of the reference plane O opposite to the side of the reference plane O proximate to the cabinet is an inner side. In a case where the refrigerator is placed in the cabinet 100 for use, in order to avoid factors such as uneven ground of the user and deformation of the cabinet, the cabinet is usually located 5 mm (i.e., α = 5 mm) away from a side (i.e., the reference plane O) of the refrigerator when being provided. In order to ensure that the door body 30 of the refrigerator is opened normally, the side edge 33 of the door body 30 cannot extend too far beyond the side (i.e., the reference plane O) of the refrigerator body 10 during rotation of the door body 30. Otherwise, the side edge 33 collides with the cabinet 100 and the door body 30 cannot be opened normally.

[0027] Therefore, the door body 30 needs to be able to move to the inner side during the rotation process, so that the side edge 33 may not extend too far beyond the side of the refrigerator body 10. For the hinge plate 40 disposed on the right side of the door body 30, the inner side is the left side. That is to say, the door body 30 may move to the left side. For the hinge plate 40 disposed on the left side of the door body 30, the inner side is the right side. That is to say, the door body 30 may move to the right side.

[0028] There are a relative movement relationship between the first trajectory slot 50 and the first hinge shaft 41 and a relative movement relationship between the second trajectory slot 60 and the second hinge shaft 42. Therefore, if the first trajectory slot 50 and the second trajectory slot 60 are stationary reference objects during the process of opening the door body 30, it is equivalent to that the first hinge shaft 41 moves in the first trajectory slot 50 and the second hinge shaft 42 moves in the second trajectory slot 60. For the convenience of description, the present disclosure is introduced by considering an example in which the first trajectory slot 50 and the second trajectory slot 60 are used as the reference objects, and the first hinge shaft 41 and the second hinge shaft 42 move with respect to the reference objects.

[0029] In some embodiments of the this application, in a case where the door body 30 rotates to be opened from a closed state to a state with a 90° opening angle, a movement trajectory of the first hinge shaft 41 with respect to the first trajectory slot 50 approximately extends in a direction proximate to the side wall 32 and the front wall 31, a movement trajectory of the second hinge shaft 42 with respect to the second trajectory slot 60 approximately extends in a direction away from the front wall 31 and proximate to the side wall 32, so that the door body 30 may move inwards for a distance while rotating, thereby avoiding a problem that the door body 30 cannot be opened normally due to interference between the side edge 33 extending beyond the reference plane O and the cabinet during the process of opening the door body 30.

[0030] FIG. 7 is a diagram showing a relative position of a first hinge shaft and a second hinge shaft of a refrigerator, in accordance with some embodiments. Referring to FIG. 7, in a case where the door body 30 is in the closed state, the first hinge shaft 41 is closer to the side wall 32 and farther from the front wall 31 than the second hinge shaft 42. A vertical distance L1 between the first hinge shaft 41 and the second hinge shaft 42 in a front-rear direction is greater than or equal to 2.5 mm and less than or equal to 10 mm (i.e., 2.5 mm ≤ L1 ≤ 10 mm), and a vertical distance L2 between the first hinge shaft 41 and the second hinge shaft 42 in a left-right direction is greater than or equal to 7.5 mm and less than or equal to 30 mm (i.e., 7.5 mm ≤ L2 ≤ 30 mm). For example, the vertical distance L1 is equal to 5 mm, the vertical distance L2 is equal to 15 mm, and a thickness of the door body 30 is within a range of 44 mm to 53 mm, inclusive, so that corners of the door body 30 always extends beyond the side of the refrigerator body 10 by a small distance during the process of opening the door body 30, and the distance is specifically less than 3 mm.

[0031] FIG. 8 is a diagram of a hinge in a case where a door body of a refrigerator is in a closed state, in accordance with some embodiments. In some embodiments of the present disclosure, referring to FIG. 8, in a case where the door body 30 is in the closed state, the first hinge shaft 41 is located at an end portion of the first trajectory slot 50 and the second hinge shaft 42 is located at an end portion of the second trajectory slot 60. Thus, starting end portions of the first trajectory slot 50 and the second trajectory slot 60 may be determined. The first trajectory slot 50 approximately extends from the starting end portion to another end portion of the first trajectory slot 50 in a direction proximate to the side wall 32 and the front wall 31. The second trajectory slot 60 approximately extends from the starting end portion to another end portion of the second trajectory slot 60 in a direction away from the front wall 31 and proximate to the side wall 32. The first trajectory slot 50 and the second trajectory slot 60 each extend in the direction proximate to the side wall 32, so that the door body 30 may move to the inner side relative to the hinge plate 40.

[0032] In some embodiments, in a case where the door body 30 is in the closed state, there is a gap between the second hinge shaft 42 and a lower end portion of the second trajectory slot 60, so that the second hinge shaft 42 may be not in contact with the lower end portion of the second trajectory slot 60 in a case where the door body 30 is thrown hard, thereby preventing the door body 30 from being bounced open.

[0033] The detailed process of rotating and opening the door body 30 from the closed state is introduced below:First stage

[0034] FIG. 10 is a diagram of the hinge in FIG. 8. Referring to FIG. 10, the first trajectory slot 50 has a first positioning position 51 and a second positioning position 52. A movement trajectory of the first hinge shaft 41 from the first positioning position 51 to the second positioning position 52 in the first trajectory slot 50 is a first positioning trajectory line. Correspondingly, the second trajectory slot 60 has a first guiding position 61 and a second guiding position 62, a movement trajectory of the second hinge shaft 42 from the first guiding position 61 to the second guiding position 62 in the second trajectory slot 60 is a first guiding trajectory line.

[0035] FIG. 11 is a diagram of a door body of a refrigerator in a first state, in accordance with some embodiments. Referring to FIGS. 8 and 11, in a case where the door body 30 rotates to be opened from the closed state shown in FIG. 8 to a first state shown in FIG. 11, the first hinge shaft 41 moves from the first positioning position 51 to the second positioning position 52 along the first positioning trajectory line with respect to the first trajectory slot 50. Meanwhile, the second hinge shaft 42 moves from the first guiding position 61 to the second guiding position 62 along the first guiding trajectory line with respect to the second trajectory slot 60.

[0036] The second positioning position 52 is further away from the front wall 31 and closer to the side wall 32 than the first positioning position 51, and the first positioning trajectory line extends in the direction away from the front wall 31 and proximate to the side wall 32. In this way, the first hinge shaft 41 moves in the direction proximate to the side wall 32 and away from the front wall 31, which is equivalent to that the door body 30 with the first trajectory slot 50 moves a first distance in a direction (towards the inner side) away from the side wall 32 and moves a distance in a direction (towards the front side) proximate to the front wall 31, so that the door body 30 moving inwards may prevent the side edge 33 from extending too far beyond the side of the refrigerator body 10 to touch the cabinet. In a case where the door body 30 is just opened, a right rear end of the door body 30 will rotate backwards relative to the first hinge shaft 41. Therefore, a door seal 30a on the door body 30 will come into contact and friction with the front side of the refrigerator body 10 as the door body 30 moves inwards. However, in this application, friction between the door seal 30a and the front side of the refrigerator body 10 may be avoided and the service life of the door seal 30a may be increased by providing the door body 30 moving towards the front side.

[0037] The second guiding position 62 is further away from the front wall 31 and closer to the side wall 32 than the first guiding position 61, and the first guiding trajectory line extends in the direction away from the front wall 31 and proximate to the side wall 32.

[0038] In some embodiments, the first positioning trajectory line is a first straight line 512 and the first guiding trajectory line is a second straight line 612. However, in other embodiments, the first positioning trajectory line and the first guiding trajectory line may also be curves.

[0039] In a case where the door body 30 of the refrigerator is in the first state (as shown in FIG. 11), an opening angle of the door body 30 is within a range of about 5° to 10°, inclusive, and the side edge 33 extends beyond the side of the refrigerator body 10 by a distance β, and the distance β is about 2 mm.

[0040] In this stage, an included angle between the first straight line 512 and the second straight line 612 is greater than 45°, which may avoid the shaking of door body 30 due to a small included angle between the first straight line 512 and the second straight line 612 that are nearly parallel to each other, so as to improve stationarity of the door body 30 during the rotation process.Second stage

[0041] Referring to FIG. 10, the first trajectory slot 50 further has a third positioning position 53. A movement trajectory of the first hinge shaft 41 from the second positioning position 52 to the third positioning position 53 in the first trajectory slot 50 is a second positioning trajectory line. Correspondingly, the second trajectory slot 60 further has a third guiding position 63, and a movement trajectory of the second hinge shaft 42 from the second guiding position 62 to the third guiding position 63 in the second trajectory slot 60 is a second guiding trajectory line.

[0042] FIG. 13 is a diagram of a door body of a refrigerator in a second state, in accordance with some embodiments. Referring to FIG. 13, in a case where the door body 30 continues to be opened from the first state shown in FIG. 11 to a second state shown in FIG. 13, the opening angle of the door body in the second state is less than 90°, and the first hinge shaft 41 moves from the second positioning position 52 to the third positioning position 53 along the second positioning trajectory line with respect to the first trajectory slot 50, and the second hinge shaft 42 moves from the second guiding position 62 to the third guiding position 63 along the second guiding trajectory line with respect to the second trajectory slot 60.

[0043] The third positioning position 53 is closer to the front wall 31 and the side wall 32 than the second positioning position 52, and the second positioning trajectory line extends from the second positioning position 52 to the third positioning position 53 in a direction proximate to the front wall 31 and the side wall 32, so that the door body 30 may move inwards for a second distance.

[0044] The third guiding position 63 is further away from the front wall 31 and closer to the side wall 32 than the second guiding position 62, and the second guiding trajectory line extends in the direction away from the front wall 31 and proximate to the side wall 32.

[0045] In some embodiments, the second positioning trajectory line is a first curve 523, and the second guiding trajectory line is a second curve 623. However, in other embodiments, the second positioning trajectory line and the second guiding trajectory line may also be straight lines.

[0046] In a case where the door body 30 is in the closed state, a center of a curvature of the first curve 523 is located on a side of the first curve 523 proximate to the front wall, and a center of a curvature of the second curve 623 is located on a side of the second curve 623 proximate to the side edge.

[0047] The present disclosure divides the process of the door body 30 moving inwards when the door body 30 is opened into two different stages, namely moving to the first state along a straight line and moving to the second state along a curve, which may avoid a problem that the door body 30 shakes due to the trajectories being close to parallelism in a case where the door body rotates at a large angle along only a straight line or only a curve.

[0048] In some embodiments, during a process of opening the door body 30 from the closed state to the second state, the side edge 33 of the door body 30 rotates on the outer side of the reference plane O and moves towards the inner side. During this process, the distance β that the side edge 33 is beyond the reference plane O is always less than the distance α (5 mm) between the reference plane O and the cabinet, so that the side edge 33 will not touch and interfere with the cabinet. Meanwhile, the side edge 33 of the door body 30 is on the outer side of the reference plane O, which avoids a problem that the user feels discontinuity when opening the door in a case where the door body 30 moves a large distance to the inner side of the reference plane O.

[0049] In some embodiments, a distance from the second positioning position 52 to the third positioning position 53 is greater than a distance from the first positioning position 51 to the second positioning position 52. That is to say, a length of the first straight line 512 is less than that of the first curve 523, a length of the second straight line 612 is less than that of the second curve 623. In this way, the first hinge shaft 41 and the second hinge shaft 42 each perform a linear movement with a small distance only at the beginning, and then perform a curve movement with a large angle. The curve movement may ensure continuity of the movement of the door body 30 and prevent the user from feeling discontinuity due to the door body 30 moving inwards during a linear movement.

[0050] In some embodiments of the second stage, the first curve 523 and the second curve 623 each include at least two curve segments with decreasing curvature.

[0051] In this way, as the curvature of the curve decreases, a distance that the door body 30 moves inwards at a unit angle decreases. That is to say, the movement of the door body 30 moving inwards slows down during a process of the door body 30 rotating to be opened and moving inwards, so as to ensure continuity of the door body 30 during movement.

[0052] Referring to FIGS. 12 and 13, in some embodiments of curvature change, the first curve 523 includes a first curve segment 5231 and a third curve segment 5232 connected in sequence, and the second curve 623 includes a second curve segment 6231 and a fourth curve segment 6232 connected in sequence. A curvature of the third curve segment 5232 is less than that of the first curve segment 5231, and a curvature of the fourth curve segment 6232 is less than that of the second curve segment 6231.

[0053] In a case where the first hinge shaft 41 moves along the first curve segment 5231, the second hinge shaft 42 moves along the second curve segment 6231. During such process, a distance for the door body 30 to move inwards is d1 in a case where the door body 30 is opened at a unit angle. In a case where the first hinge shaft 41 continues to move along the third curve segment 5232, the second hinge shaft 42 moves along the fourth curve segment 6232. During such process, a distance for the door body 30 to move inwards is d2 in a case where the door body 30 is opened at a unit angle. The distance d2 is less than the distance d1 (i.e., d2<d1). As a specific example, the distance d2 may be half of the distance d1 (i.e., d2 = d1 / 2).

[0054] In other embodiments, the first curve 523 and the second curve 623 each may also include three or more curve segments with decreasing curvature.

[0055] In some other embodiments of curvature change, the curvatures of the first curve 523 and the second curve 623 each decrease. In this way, it is also possible to ensure that the movement of the door body 30 slows down during a process of the door body 30 rotating to be opened and moving inwards, so as to ensure the continuity of the door body 30 during movement.Third stage

[0056] FIG. 14 is a diagram of a door body of a refrigerator in a state with a 90° opening angle, in accordance with some embodiments. Referring to FIG. 14, in a case where the door body 30 continues to be opened from the second state shown in FIG. 13 to the state with the 90° opening angle shown in FIG. 14, the door body 30 only performs rotational movement, and the position of the first hinge shaft 41 remains unchanged in the first trajectory slot 50, the door body 30 rotates with the first hinge shaft 41 as a center of a circle, and the second hinge shaft 42 moves to a fourth guiding position 64 along a third guiding trajectory line in the second trajectory slot 60. The third guiding trajectory line is a third curve 634 and in a shape of an arc, and the fourth guiding position 64 is farther from the front wall 31 and closer to the side wall 32 than the third guiding position 63.

[0057] In some embodiments, in a case where the door body 30 is in the state with the 90° opening angle, there is a gap γ between the front wall 31 or the side edge 33 of the door body 30 and the side (reference plane O) of the refrigerator body 10 in a thickness direction (e.g., the left-right direction) of the door body 30. That is to say, the front wall 31 of the door body 30 is located on the inner side of the reference plane O and a distance from the front wall 31 to the reference plane O is γ, the distance γ is greater than 0, so that the door body 30 may continue to be opened at a small angle without interfering with the cabinet. In such example, in a case where the refrigerator is disposed in the cabinet, the door body 30 may be opened by an opening angle greater than 90°, and the opening angle is approximately within a range of 105° to 110°, inclusive.

[0058] In order to allow the refrigerator to be opened by a large angle in a case where the refrigerator is not embedded in the cabinet for use, embodiments improve the first trajectory slot 50 and the second trajectory slot 60.Fourth stage

[0059] Referring to FIG. 10, the first trajectory slot 50 also has a first end position 54, and a movement trajectory of the first hinge shaft 41 from the third positioning position 53 to the first end position 54 in the first trajectory slot 50 is a third positioning trajectory line. Correspondingly, the second trajectory slot 60 also has a second end position 65, and a movement trajectory of the second hinge shaft 42 from the fourth guiding position 64 to the second end position 65 in the second trajectory slot 60 is a fourth guiding trajectory line.

[0060] FIG. 15 is a diagram of a door body of a refrigerator in a maximum open state, in accordance with some embodiments. Referring to FIG. 15, in a case where the door body 30 continues to be opened from the state with the 90° opening angle as shown in FIG. 14, the first hinge shaft 41 moves from the third positioning position 53 to the first end position 54 along the third positioning trajectory line with respect to the first trajectory slot 50, the second hinge shaft 42 moves from the fourth guiding position 64 to the second end position 65 along the fourth guiding trajectory line with respect to the second trajectory slot 60.

[0061] The first end position 54 is closer to the front wall 31 and the side wall 32 than the third positioning position 53, and the third positioning trajectory line extends from the third positioning position 53 to the first end position 54 in a direction proximate to the front wall 31 and the side wall 32. The second end position 65 is closer to the front wall 31 and the side wall 32 than the fourth guiding position 64, and the fourth guiding trajectory line extends from the fourth guiding position 64 to the second end position 65 in a direction proximate to the front wall 31 and the side wall 32.

[0062] In the above description, the extending directions of the trajectory lines use a movement direction of the first hinge shaft 41 relative to the first trajectory slot 50, or a movement direction of the second hinge shaft 42 relative to the second trajectory slot 60 during the process of opening the door body 30 as a reference.

[0063] In such embodiment, the third positioning trajectory line is a fourth curve 534, and the fourth guiding trajectory line is a fifth curve 645. However, in other embodiments, the third positioning trajectory line and the fourth guiding trajectory line may also be straight lines.

[0064] If the movement trajectory at this stage is still the same as only rotational movement performed by the door body 30 at the previous stage, in a large rotation range, it is easy to occur a phenomenon that the door body 30 shakes in a case where movement trends of the first hinge shaft 41 and the second hinge shaft 42 are parallel to each other. Therefore, at this stage, the side edge of the door body 30 is set to move forward and inward for a distance while rotating, so that the movement trajectory of the first hinge shaft 41 and the movement trajectory of the second hinge shaft 42 may have an included angle at any point.

[0065] Specifically, an included angle between tangents of the movement trajectories of the first hinge shaft 41 and the second hinge shaft 42 at any corresponding points is greater than 30°, so as to ensure the stationarity of the movement of the door body 30.

[0066] In some embodiments of this application, the first hinge shaft 41 mainly plays a positioning role and the second hinge shaft 42 mainly plays a guiding role, in the two hinge shafts, the first hinge shaft 41 is a main shaft and the second hinge shaft 42 is an auxiliary shaft, and the force is mainly concentrated on the main shaft. Therefore, the first hinge shaft 41 is set to be longer than the second hinge shaft 42, and correspondingly, the first trajectory slot 50 is deeper than the second trajectory slot 60. In this way, it is possible to avoid wasting material due to the second hinge shaft 42 being too long, and also avoid a problem that the trajectory slot easily detaches from the hinge shaft in a case where the door body is inclined and the first hinge shaft 41 is short, so as to save material cost on the basis of ensuring structural reliability.

[0067] In addition, since the force is concentrated on the first hinge shaft 41, a diameter of the first hinge shaft 41 may be greater than that of the second hinge shaft 42. In this way, the first hinge shaft 41 is thick and withstands large forces, and has sufficient strength to withstand the force in a case where the door body is inclined. Meanwhile, the second trajectory slot 60 is long and occupies a lot of space in a thickness direction of the door body. Therefore, the second hinge shaft 42 may be set to be thin, and correspondingly, the second trajectory slot 60 may be narrow, so that the door body may be designed thin, an overall thickness of the refrigerator may be small, and the refrigerator may have the advantage of small volume.

[0068] FIG. 16 is a diagram of a hinge shaft of a refrigerator, in accordance with some embodiments. Referring to FIG. 16, bushings 90 are disposed outside the first hinge shaft 41 and the second hinge shaft 42, respectively, and the bushing 90 may rotate relative to the shaft. During the movement of a hinge with two shafts, the bushing 90 rotates relative to the hinge shaft while the bushing 90 slides relative to the trajectory slot, which may reduce friction and increase service life. The bushing 90 may be made of wear-resistant polyformaldehyde (POM), and the bushing 90 may be connected to the hinge shaft through a bearing or connected to the hinge plate 40 through a bearing.

[0069] In other embodiments, a lining made of POM may also be disposed on an inner wall of the trajectory slot, and the hinge shaft moves in the lining.

[0070] In some embodiments of this application, referring to FIGS. 17 to 20, the door body 30 includes a mounting block 70 installed at a position of the door body 30 opposite to the hinge plate 40, the first trajectory slot 50 and the second trajectory slot 60 are disposed on mounting block 70.

[0071] The mounting block 70 includes an upper mounting block 71 disposed on the upper end of the door body 30 and a lower mounting block 72 disposed on the lower end of the door body 30.

[0072] Specifically, referring to FIGS. 17 and 18, the upper mounting block 71 may include a plate body 711 and a second extending portion 712 formed by a lower surface of the plate body 711 extending downwards. The first trajectory slot 50 and the second trajectory slot 60 are recessed downwards from an upper surface of the plate body 711 to the second extending portion 712. A shape of the second extending portion 712 corresponds to the trajectory slots.

[0073] The upper end of the door body 30 is correspondingly provided with an upper accommodating groove 34. The upper mounting block 71 is inserted into the upper accommodating groove 34, and then the plate body 711 is tightly connected to the door body 30 by means of screws or the like.

[0074] Specifically, referring to FIGS. 19 and 20, the lower mounting block 72 has same structures as the plate body 711, the second extending portion 712, and the trajectory slots of the upper mounting block 71. An upper surface of the plate body 711 extends upward to form the second extending portion 712 of the lower mounting block 72. The first trajectory slot 50 and the second trajectory slot 60 are recessed upwards from the lower surface of the plate body 711 to the second extending portion 712. Meanwhile, the lower end of the door body 30 is provided with a lower accommodating groove 36. The lower mounting block 72 is inserted into the lower accommodating groove 36, and then the plate body 711 is tightly connected to the door body 30 by means of screws or the like.

[0075] The upper mounting block 71 and the lower mounting block 72 may be made of POM. POM has a strong friction resistance characteristic and may improve the service life of the hinge.

[0076] In some embodiments of this application, with reference to FIG. 6, the lower mounting block 72 includes a locking hook structure. The lower mounting block 72 includes a locking hook 721 disposed on the inner side of the plate body 711. The locking hook 721 extends inwards and is bent toward the rear side. An opening of the locking hook 721 faces the plate body 711, and a free end of the locking hook 721 is located on the rear side.

[0077] A blocking portion 403 is disposed on the inner side of the hinge plate 40 located at the lower end of the door body 30 and extends outwards. In a case where the door body 30 is in the closed state, the locking hook 721 on the door body 30 hooks the blocking portion 403 on the hinge plate 40, so as to lock the door body 30 and avoid the door body 30 not closing tightly and affecting the refrigerating and freezing effects of the refrigerator. In a case where the door body 30 is opened, the locking hook 721 is deformed due to force and overcomes the obstruction of the blocking portion 403, thereby disengaging from the blocking portion 403.

[0078] The locking hook 721 may include a fixing portion 7211 and a hook portion 7212. The fixing portion 7211 is connected to the plate body 711, and the hook portion 7212 is connected to the fixing portion 7211 and bent backward. Screws pass through the fixing portion 7211 and are connect with the door body 30, so as to strengthen the connection strength between the fixing portion 7211 and the door body 30, so that only the hook portion 7212 may be deformed when the locking hook 721 disengages from the blocking portion 403.

[0079] Free ends of the hook portion 7212 and the blocking portion 403 each are in a shape of an arc, which is beneficial for the hook portion 7212 to hook or disengage from the blocking portion 403 along the arc.

[0080] In some embodiments, a first convex portion 37 and a second convex portion 38 may be disposed on the door body 30. In a case where the door body 30 is in the closed state, the first convex portion 37 and the second convex portion 38 are approximately arranged in the front-rear direction. Moreover, there is a slot 39 between the first convex portion 37 and the second convex portion 38, and a portion 7211a of the fixing portion 7211 is inserted into the slot 39. In this way, the deformation of the fixing portion 7211 in the front-rear direction may be avoided by the limitation of the first convex portion 37 and the second convex portion 38.

[0081] In some embodiments of this application, a limiting structure is disposed between the door body 30 and the hinge plate 40, so as to limit a maximum angle at which the door body 30 may be opened, thereby avoiding damage to the mounting block 70 in a case where the door is opened to an angle with great force.

[0082] Specifically, referring to FIGS. 19 and 21, a limiting block 80 is disposed at the lower end of the door body 30, and the limiting block 80 is located at a front end of the lower mounting block 72. In a case where the door body 30 rotates to a maximum allowable position, the limiting block 80 is in contact with a side 404 of the hinge plate 40, so as to prevent the door body 30 from continuing to rotate.

[0083] The limiting block 80 may be a sheet metal member and include an embedded portion 81, a limiting portion 82 and a reinforcing portion 83.

[0084] The embedded portion 81 is in a shape of a plate and installed in the lower accommodating groove 36 of the door body 30. The plate body 711 of the lower mounting block 72 clamps the embedded portion 81 on the door body 30 from the lower end of the door body 30, so as to fix the limiting block 80 on the door body 30.

[0085] The reinforcing portion 83 and the embedded portion 81 form a right angle. That is to say, the embedded portion 81 is in a transverse state and the reinforcing portion 83 is in a vertical state in the assembled state. A front end of the embedded portion 81 is bent downwards to form the reinforcing portion 83.

[0086] The limiting portion 82 is in a shape of a block, and a portion of the lower end of the reinforcing portion 83 continues to extend downwards to form the limiting portion 82. The limiting portion 82 extends vertically beyond the lower surface of the door body 30, so that the limiting portion 82 will be blocked by the side 404 of the hinge plate 40 in a case where the door body 30 drives the limiting block 80 to rotate to the maximum angle, thereby forcing the door body 30 to stop being opened.

[0087] The limiting block 80 is clamped on the door body 30 by the lower mounting block 72, which may omit the connection structure between the limiting block 80 and the door body 30 and simplify the structure of product and has the advantage of simple structure.

[0088] It will be noted that the limiting block 80 may also be disposed at the upper end of the door body 30, and details will not be repeated herein.

[0089] If the distance between the first hinge shaft 41 and the second hinge shaft 42 is far, the movement of the hinge will be greatly affected and the normal rotation of the hinge may be even affected in a case where the door body 30 is inclined or the two shafts are not parallel to each other. Therefore, in some embodiments of this application, referring to FIG. 18, a thickness of the plate body 711 of the mounting block 70 is marked as H3, and a minimum wall thickness between the first trajectory slot 50 and the second trajectory slot 60 is marked as H4, and the thickness H4 equals 0.5 to 1 times the minimum wall thickness H3. In this way, it is possible to make the distance between the first hinge shaft 41 and the second hinge shaft 42 small, so that the movement of the hinge will be less affected while the strength of the mounting block 70 will not be affected in a case where the door body is slightly inclined or the two shafts are not parallel to each other.

[0090] In the above embodiments, the first trajectory slot 50 and the second trajectory slot 60 are disposed on the mounting block 70, and then the mounting block 70 is installed on the door body 30. However, in other embodiments, the first trajectory slot 50 and the second trajectory slot 60 may also be directly disposed on the door body 30.

[0091] Referring to FIGS. 22 and 23, a position of the door body 30 corresponding to the hinge plate 40 located on the upper end is recessed downwards, so as to form the first trajectory slot 50 and the second trajectory slot 60. A position of the door body 30 corresponding to the hinge plate 40 located on the lower end is recessed upwards, so as to form the first trajectory slot and the second trajectory slot 60.

[0092] Specifically, the door body 30 includes a door shell 301 and a protruding portion 302 extending vertically from the door shell 301 to the interior of the door shell 301. The first trajectory slot 50 and the second trajectory slot 60 are formed by an outer end surface of the door shell 301 being recessed inward to the protruding portion 302.

[0093] The protruding portion 302 may be integrally formed with the door shell 301. The protruding portion 302 includes a first protruding portion 303 and a second protruding portion 304. The first protruding portion 303 has a shape corresponding to the first trajectory slot 50, and the second protruding portion 304 has a shape corresponding to the second trajectory slot 60.

[0094] A thickness of the door shell 301 is marked as H1, and a minimum wall thickness between the first trajectory slot 50 and the second trajectory slot 60 is marked as H2, the thickness H2 equals 0.5 to 1 times the minimum wall thickness H1. In this way, it is possible to make the distance between the first hinge shaft 41 and the second hinge shaft 42 small, so that the movement of the hinge will be less affected while the strength of the mounting block 70 will not be affected in a case where the door body is slightly inclined or the two shafts are not parallel to each other.

[0095] In the above embodiments, the first hinge shaft 41 and the second hinge shaft 42 are disposed on the hinge plate 40, and the first trajectory slot 50 and the second trajectory slot 60 are disposed on the door body 30. In other embodiments, the first hinge shaft 41 and the second hinge shaft 42 may be disposed on the door body 30, and the first trajectory slot 50 and the second trajectory slot 60 are disposed on the hinge plate 40. Alternatively, in another embodiment, the first hinge shaft 41 and the second trajectory slot 60 are disposed on the hinge plate 40, and the second hinge shaft 42 and the first trajectory slot 50 are disposed on the door body 30. Alternatively, the first hinge shaft 41 and the second trajectory slot 60 are disposed on the door body 30, and the second hinge shaft 42 and the first trajectory slot 50 are disposed on the hinge plate 40.

[0096] In this application, the door body 30 moves inwards for a first distance and forwards for a distance in a case where the door body 30 is initially opened. The door body 30 moves inwards for the first distance, which may ensure that the door body 30 will not interfere with the cabinet, and the door body 30 moves forwards for the distance, which may avoid wear and tear caused by friction between the door seal 30a and the front side of the refrigerator body 10.

[0097] In this application, it is possible to avoid a problem that the door body 30 shakes due to the trajectories being close to parallelism in a case where the door body rotates at a large angle only along a straight line or a curve by dividing the process of the door body 30 rotating to be opened and moving inwards into two stages (that is, the movement trajectories of the first hinge shaft 41 and the second hinge shaft 42 are straight lines in a case where the door body 30 is opened from the closed state to the first state, the movement trajectories of the first hinge shaft 41 and the second hinge shaft 42 are curves in a case where the door body 30 continues to be opened from the first state to the second state, and from the first state along the straight lines to the second state along the curves). Moreover, the first hinge shaft 41 and the second hinge shaft 42 each perform a linear movement for a small distance only at the beginning, and then perform a curve movement with a large angle. The curve movement may ensure continuity of the movement of the door body 30 and prevent the user from feeling discontinuity due to the door body 30 moving inwards during the linear movement.

[0098] In this application, in a case where the door body 30 is opened from the first state to the second state, the curve trajectories of the movements of the first hinge shaft 41 and the second hinge shaft 42 each include at least two curve segments with decreasing curvature, so that a distance at which the door body 30 moves inwards at a unit angle may decrease, the movement of the door body 30 may slow down during a process of the door body 30 rotating to be opened and moving inwards, so as to ensure continuity of the door body 30 during movement.

[0099] In this application, in a case where the door body 30 continues to be opened from the state with the 90° opening angle, the movement trajectory of the first hinge shaft 41 is the fourth curve 534, and the movement trajectory of the second hinge shaft 42 is the fifth curve 645, so that the movement trajectory of the first hinge shaft 41 and the movement trajectory of the second hinge shaft 42 may have an included angle at any point, which avoids the problem that the door body 30 is prone to shaking when rotating within a large angle range, and ensures the stationarity of the movement of the door body 30.

[0100] In this application, during the entire process of opening the door body 30, the first hinge shaft moves from one end of the first trajectory slot to another end of the first trajectory slot, and the second hinge shaft moves from one end of the second trajectory slot to another end of the second trajectory slot, and the movement process will not retract, which ensures continuity when the door body 30 is opened.

[0101] The foregoing descriptions are merely specific implementation manners of the present disclosure, but the protection scope of the present disclosure is not limited thereto.

[0102] The protection scope of the present invention is subject to the protection scope of the claims.

Claims

1. A refrigerator, comprising: a refrigerator body (10) having a storage chamber (20); a door body (30) connected to the refrigerator body (10) to open or close the storage chamber (20); and a cold air supply device supplying cold air to the storage chamber (20); the refrigerator body (10) includes: an inner shell defining the storage chamber (20); an outer shell connected to an outside of the inner shell, so as to constitute an appearance of the refrigerator (1); and an insulator disposed between the inner shell and the outer shell to insulate the storage chamber (20); the storage chamber (20) has an open front portion for putting in and taking out food, and the door body (30) is rotatably connected to the refrigerator body (10), so as to open and close the open front portion of the storage chamber (20); the door body (30) is rotatably supported by a hinge located at an upper end of the door body (30) and a hinge located at a lower end of the door body (30); the hinge located at the upper end of the door body (30) includes a hinge plate (40) connected to an upper end of the refrigerator body (10), and a first hinge shaft (41) and a second hinge shaft (42) that are connected to the hinge plate (40) to constitute rotation shafts; the hinge plate (40) includes: a connecting portion (401) having a substantially horizontal plate shape and connected to the refrigerator body (10); and a first extending portion (402) extending forward from the connecting portion (401) and having a horizontal plate shape; the connecting portion (401) being fixed on the refrigerator body (10) by means of a fastener; in the hinge located at the lower end of the door body (30), the connecting portion (401) is connected to a front surface of the refrigerator body (10), the first hinge shaft (41) and the second hinge shaft (42) extend upwards from the hinge plate (40); corresponding to positions of the hinge plates (40), the upper and lower ends of the door body (30) each are provided with a first trajectory slot (50) and a second trajectory slot (60); in a case where the hinge plate (40) is located on a right side of the refrigerator body (10), a right side of the door body (30) is a side wall (32); in a case where the hinge plate (40) is located on a left side of the refrigerator body (10), a left side of the door body (30) is the side wall (32); a front wall (31) and the side wall (32) of the door body (30) meet to constitute a side edge (33); the door body (30) includes a mounting block (70), the mounting block (70) is installed at a position of the door body (30) corresponding to the hinge plate (40), and the first trajectory slot (50) and the second trajectory slot (60) are disposed on the mounting block (70); the mounting block (70) includes an upper mounting block (71) disposed at the upper end of the door body (30) and a lower mounting block (72) disposed at the lower end of the door body (30); an upper surface of a plate body (711) extends upwards to constitute a second extending portion (712) of the lower mounting block (72), the first trajectory slot (50) and the second trajectory slot (60) are recessed upwards from a lower surface of the plate body (711) to the second extending portion (712), a lower accommodating groove (36) is disposed at the lower end of the door body (30), the lower mounting block (72) is inserted into the lower accommodating groove (36), and the plate body (711) is fixedly connected to the door body (30) by means of a screw; the lower mounting block (72) includes a locking hook structure, the lower mounting block (72) includes a locking hook (721) disposed on an inner side of the plate body (711), the locking hook (721) extends inwards and is bent towards a rear side, an opening of the locking hook (721) faces the plate body (711), and a free end of the locking hook (721) is located on the rear side; a blocking portion (403) is disposed on an inner side of the hinge plate (40) located at the lower end of the door body (30) and extends outwards, in a case where the door body (30) is in a closed state, the locking hook (721) on the door body (30) hooks the blocking portion (403) on the hinge plate (40); a limiting block (80) is disposed at the lower end of the door body (30) and located at a front end of the lower mounting block (72), in a case where the door body (30) rotates to a maximum allowable position, the limiting block (80) abuts against a side (404) of the hinge plate (40), so as to prevent the door body (30) from continuing to rotate; in a case where the door body (30) is in the closed state, the first hinge shaft (41) is closer to the side wall (32) and farther away from the front wall (31) than the second hinge shaft (42); a vertical distance (L1) between the first hinge shaft (41) and the second hinge shaft (42) in a front-rear direction is greater than or equal to 2.5 mm and less than or equal to 10 mm, a vertical distance (L2) between the first hinge shaft (41) and the second hinge shaft (42) in a left-right direction is greater than or equal to 7.5 mm and less than or equal to 30 mm; in a case where the door body (30) is in the closed state, the first hinge shaft (41) is located at an end portion of the first trajectory slot (50), and the second hinge shaft (42) is located at an end portion of the second trajectory slot (60); the first hinge shaft (41) moves from an end of the first trajectory slot (50) to another end of the first trajectory slot (50) and the second hinge shaft (42) moves from an end of the second trajectory slot (60) to another end of the second trajectory slot (60) during an entire process of opening the door body (30); the first trajectory slot (50) has a first positioning position (51) and a second positioning position (52), a movement trajectory of the first hinge shaft (41) in the first trajectory slot (50) from the first positioning position (51) to the second positioning position (52) is a first positioning trajectory line; the second trajectory slot (60) has a first guiding position (61) and a second guiding position (62), a movement trajectory of the second hinge shaft (42) in the second trajectory slot (60) from the first guiding position (61) to the second guiding position (62) is a first guiding trajectory line; in a case where the door body (30) is opened from the closed state to a first state, the first hinge shaft (41) moves from the first positioning position (51) to the second positioning position (52) along the first positioning trajectory line with respect to the first trajectory slot (50); meanwhile, the second hinge shaft (42) moves from the first guiding position (61) to the second guiding position (62) along the first guiding trajectory line with respect to the second trajectory slot (60); the second positioning position (52) is farther away from the front wall (31) and closer to the side wall (32) than the first positioning position (51), and the first positioning trajectory line extends in a direction away from the front wall (31) and proximate to the side wall (32); the second guiding position (62) is farther away from the front wall (31) and closer to the side wall (32) than the first guiding position (61), and the first guiding trajectory line extends in a direction away from the front wall (31) and proximate to the side wall (32); the first trajectory slot (50) further has a third positioning position (53), a movement trajectory of the first hinge shaft (41) in the first trajectory slot (50) from the second positioning position (52) to the third positioning position (53) is a second positioning trajectory line; the second trajectory slot (60) further has a third guiding position (63), a movement trajectory of the second hinge shaft (42) in the second trajectory slot (60) from the second guiding position (62) to the third guiding position (63) is a second guiding trajectory line; in a case where the door body (30) continues to be opened from the first state to a second state, an opening angle of the door body (30) in the second state is less than 90°, the first hinge shaft (41) moves from the second positioning position (52) to the third positioning position (53) along the second positioning trajectory line with respect to the first trajectory slot (50), the second hinge shaft (42) moves from the second guiding position (62) to the third guiding position (63) along the second guiding trajectory line with respect to the second trajectory slot (60); the third positioning position (53) is closer to the front wall (31) and the side wall (32) than the second positioning position (52), and the second positioning trajectory line extends from the second positioning position (52) to the third positioning position (53) in a direction proximate to the front wall (31) and the side wall (32), so that the door body (30) moves a second distance inward; the third guiding position (63) is farther away from the front wall (31) and closer to the side wall (32) than the second guiding position (62), and the second guiding trajectory line extends in a direction away from the front wall (31) and proximate to the side wall (32).

2. The refrigerator according to claim 1, wherein in a case where the door body (30) continues to be opened from the second state to a state with a 90° opening angle, the door body (30) performs a rotational movement; a position of the first hinge shaft (41) remains unchanged in the first trajectory slot (50), the door body (30) rotates with the first hinge shaft (41) as a center of a circle, and the second hinge shaft (42) moves to a fourth guiding position (64) along a third guiding trajectory line in the second trajectory slot (60); the third guiding trajectory line is in a shape of an arc, and the fourth guiding position (64) is farther from the front wall (31) and closer to the side wall (32) than the third guiding position (63).

3. The refrigerator according to claim 1 or 2, wherein the locking hook (721) includes a fixing portion (7211) and a hook portion (7212), the fixing portion (7211) is connected to the plate body (711), and the hook portion (7212) is connected to the fixing portion (7211) and bent backward, the screw passes through the fixing portion (7211) and is connect with the door body (30), so as to strengthen a connection strength between the fixing portion (7211) and the door body (30).

4. The refrigerator according to claim 1 or 2, wherein the second positioning trajectory line is a first curve (523), and the second guiding trajectory line is a second curve (623); in a case where the door body (30) is in the closed state, a center of a curvature of the first curve (523) is located on a side of the first curve (523) proximate to the front wall (31), and a center of a curvature of the second curve (623) is located on a side of the second curve (623) proximate to the side edge (33).

5. The refrigerator according to claim 1 or 2, wherein the second trajectory slot (60) further has a second end position (65), and a movement trajectory of the second hinge shaft (42) from a fourth guiding position (64) to the second end position (65) in the second trajectory slot (60) is a fourth guiding trajectory line; the second end position (65) is closer to the front wall (31) and the side wall (32) than the fourth guiding position (64), and the fourth guiding trajectory line extends from the fourth guiding position (64) to the second end position (65) in a direction proximate to the front wall (31) and the side wall (32).

6. The refrigerator according to claim 1 or 2, wherein in a case where the door body (30) is in the closed state, there is a gap between the second hinge shaft (42) and a lower end portion of the second trajectory slot (60).

7. The refrigerator according to claim 1 or 2, wherein the limiting block (80) is a sheet metal member and includes an embedded portion (81) and a limiting portion (82); the embedded portion (81) is in a shape of a plate and installed in the lower accommodating groove (36) of the door body (30), the plate body (711) of the lower mounting block (72) clamps the embedded portion (81) on the door body (30) from the lower end of the door body (30), so as to fix the limiting block (80) on the door body (30).

8. The refrigerator according to claim 1 or 2, wherein the upper mounting block (71) includes the plate body (711) and the second extending portion (712) constituted by the lower surface of the plate body (711) extending downwards; the first trajectory slot (50) and the second trajectory slot (60) are recessed downwards from the upper surface of the plate body (711) to the second extending portion (712), a shape of the second extending portion (712) corresponds to the trajectory slots; an upper accommodating groove (34) is correspondingly disposed at the upper end of the door body (30), the upper mounting block (71) is inserted into the upper accommodating groove (34), and the plate body (711) is fixedly connected to the door body (30) by means of the screw.

9. The refrigerator according to claim 1 or 2, wherein a minimum wall thickness (H4) between the first trajectory slot (50) and the second trajectory slot (60) is 0.5 to 1 times a thickness (H3) of the plate body (711) of the mounting block (70).

10. The refrigerator according to claim 1 or 2, wherein a minimum wall thickness (H2) between the first trajectory slot (50) and the second trajectory slot (60) is 0.5 to 1 times a thickness (H1) of the door shell (301).

11. The refrigerator according to claim 1 or 2, wherein in a case where the door body (30) is opened in a state with a 90° opening angle, there is a gap between the front wall (31) of the door body (30) and a side of the refrigerator body (10) in a thickness direction of the door body (30).

12. The refrigerator according to claim 1 or 2, wherein a length of the first hinge shaft (41) is greater than a length of the second hinge shaft (42); the first trajectory slot (50) is deeper than the second trajectory slot (60).