Refrigerator

Abstract

Refrigerator, with a refrigerator body (10); and a door body (30) rotatably supported by a hinge disposed at an upper end of the door body (30) and a hinge disposed at a lower end of the door body (30), the upper and lower ends of the door body (30) each being provided with a first track slot (50) and a second track slot (60); wherein the hinge arranged at the upper end of the door body (30) has a hinge plate (40) connected to an upper end of the refrigerator body (10), and a first hinge axis (41) and a second hinge axis (42) connected to the hinge plate (40) to form rotation axes; the hinge arranged at the lower end of the door body (30), a hinge plate (40) connected to a lower end of the refrigerator body (10), and a first hinge axis (41) and a second hinge axis (42) connected to the hinge plate (40) to form the rotation axes; the first hinge axis (41) is in fitting engagement with the first track slot (50) and the second hinge axis (42) is in fitting engagement with the second track slot (60); in a case where the hinge plate (40) is arranged 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 arranged on a left side of the refrigerator body (10), a left side of the door body (30) is the side wall (32); in a case where the door body (30) is in a closed state, the first hinge axis (41) is closer to the side wall (32) and farther from a front wall (31) of the door body (30) than the second hinge axis (42); the first track slot (50) has a first positioning position (51) and a second positioning position (52), a movement path of the first hinge axis (41) in the first track slot (50) from the first positioning position (51) to the second positioning position (52) is a first positioning track line; the second track slot (60) accordingly has a first guide position (61) and a second guide position (62), a movement path of the second hinge axis (42) in the second track slot (60) from the first guide position (61) to the second guide position (62) is a first guide track line; in a case where the door body (30) is opened from the closed state to a first state, the first hinge axis (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); while the second hinge axis (42) moves from the first guide position (61) to the second guide position (62) along the first guide movement 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 track line extends in a direction away from the front wall (31) and toward the side wall (32); the second guide position (62) is farther away from the front wall (31) and closer to the side wall (32) than the first guide position (61), and the first guide track line extends in a direction away from the front wall (31) and toward the side wall (32); the first track slot (50) further has a third positioning position (53), a movement path of the first hinge axis (41) in the first track slot (50) from the second positioning position (52) to the third positioning position (53) is a second positioning track line; and the second track slot (60) correspondingly further has a third guide position (63), a movement path of the second hinge axis (42) in the second track slot (60) from the second guide position (62) to the third guide position (63) is a second guide track line; in a case where the door body (30) is further opened from the first state to a second state, the first hinge axis (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 axis (42) moves from the second guide position (62) to the third guide position (63) along the second guide movement line with respect to the second trajectory slot (60); the third positioning position (53) is arranged closer to the front wall (31) and the side wall (32) than the second positioning position (52), and the second positioning path line extends from the second positioning position (52) to the third positioning position (53) in a direction that runs towards the front wall (31) and the side wall (32); the third guide position (63) is arranged further away from the front wall (31) and closer to the side wall (32) than the second guide position (62), and the second guide path line extends in a direction that runs away from the front wall (31) and towards the side wall (32); an opening angle of the door body (30) in the second state is less than 90°; and in a case where the door body (30) is further opened from the second state to a state with an opening angle of 90°, a position of the first hinge axis (41) in the first track slot (50) remains unchanged, the door body (30) rotates with the first hinge axis (41) as the center of a circle, and the second hinge axis (42) moves along a third guide track line in the second track slot (60) to a fourth guide position (64); the third guide track line has the shape of an arc, and the fourth guide position (64) is located farther from the front wall (31) and closer to the side wall (32) than the third guide position (63).

Description

Reference to related applications

[0001] The present application claims priority to Chinese Patent Application No. 202110844775.7, entitled “Refrigerator,” filed with the China Patent Office on July 26, 2021; Chinese Patent Application No. 202110846078.5, entitled “Refrigerator,” filed with the China Patent Office on July 26, 2021; and Chinese Patent Application No. 202110844802.0, entitled “Refrigerator,” filed with the China Patent Office on July 26, 2021, which are hereby incorporated by reference in their entirety. Technical field

[0002] The present invention relates to the technical field of household appliances and in particular to a refrigerator. State of the art

[0003] Refrigerator door hinge structures typically have a single-axis design. The door body rotates around a hinge axis by the interaction of the hinge axis and a bushing on the door body. When the door body with such a hinge structure is opened, the corners of the door body protrude beyond one side of the door body. Brief summary of the invention

[0004] Some embodiments of the present invention provide a refrigerator comprising a refrigerator body provided with a storage chamber; a hinge plate attached to the refrigerator body; a door body rotatable with respect to the hinge plate to open or close the storage chamber, the door body having a front wall and a side wall adjacent to the hinge plate; a first hinge axis and a first track slot, the first hinge axis being disposed on one of the door body and the hinge plate, and the first track slot being disposed on another of the door body and the hinge plate; a second hinge axis and a second track slot, the second hinge axis being disposed on one of the door body and the hinge plate, and the second track slot being disposed on another of the door body and the hinge plate.In a case where the door body rotates to be opened from a closed state to a first state, the first hinge axis moves from a first positioning position of the first track slot to a second positioning position along a first straight line, and the second hinge axis moves from a first guide position of the second track slot to a second guide position along a second straight line, so that the door body moves inward by a first distance.In a case where the door body is further opened from the first state to a second state and the second state is less than 90°, the first hinge axis moves from the second positioning position of the first track slot to a third positioning position along a first curve, and the second hinge axis moves from the second guide position of the second track slot to a third guide position along a second curve, so that the door body moves inward by a second distance.

[0005] Embodiments of the present invention provide a refrigerator comprising a refrigerator body provided with a storage chamber; a hinge plate fixed to the refrigerator body; a door body rotatable with respect to the hinge plate to open or close the storage chamber, the door body having a front wall and a side wall adjacent to the hinge plate; a first hinge axis and a first track slot, the first hinge axis being disposed on one of the door body and the hinge plate, and the first track slot being disposed on another of the door body and the hinge plate; a second hinge axis and a second track slot, the second hinge axis being disposed on one of the door body and the hinge plate, and the second track slot being disposed on another of the door body and the hinge plate.In a case where the door body is opened 90° from a closed state, a movement path of the first hinge axis in the first track slot extends approximately in a direction converging toward the front wall and the side wall, and a movement path of the second hinge axis in the second track slot extends approximately away from the front wall and toward the side wall, so that the door body moves inward by a distance. When the door body is opened more than 90°, the movement path of the first hinge axis is a fourth curve, the movement path of the second hinge axis is a fifth curve, and the fourth and fifth curves each extend in a direction converging toward the front wall and the side wall. Short description of the characters

[0006] In order to more clearly describe the technical solutions in the embodiments of the present invention or the related art, the accompanying drawings used in the description of the embodiments or the related art will be briefly introduced below. However, the accompanying drawings described below are only some embodiments of the present application, and one skilled in the art can obtain other drawings according to these drawings without inventive effort. Fig. 1 is a perspective view of a refrigerator according to some embodiments; Fig. 2 is a top view of a refrigerator according to some embodiments; Fig. 3 is an enlarged view of a direction A in Fig. 2; Fig. 4 is an exploded view of a hinge at an upper right corner of a refrigerator according to some embodiments; Fig. 5 is a bottom view of a hinge at a lower end of a door body of a refrigerator according to some embodiments; Fig. 6 is an exploded view of a hinge at a lower end of a door body of a refrigerator according to some embodiments; Fig. 7 is a diagram showing a relative position of a first hinge axis and a second hinge axis according to 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, according to some embodiments; Fig. 9 is a representation of the hinge in Fig. 8; Fig. 10 is a representation of the hinge in Fig. 8; Fig. 11 is an illustration of a door body of a refrigerator in a first state according to some embodiments; Fig. 12 is an illustration of a door body of a refrigerator in a state between a first state and a second state according to some embodiments; Fig. 13 is an illustration of a door body of a refrigerator in a second state, according to some embodiments; Fig. 14 is an illustration of a door body of a refrigerator in a 90° open state, according to some embodiments; Fig. 15 is an illustration of a door body of a refrigerator in a maximum open state, according to some embodiments; Fig. 16 is an illustration of a hinge axis of a refrigerator, according to some embodiments; Fig. 17 is an exploded view of a hinge at an upper right corner of a refrigerator according to some embodiments; Fig. 18 is a perspective view of an upper mounting block of a refrigerator according to some embodiments; Fig. 19 is an exploded view of a hinge at a lower end of a door body of a refrigerator according to some embodiments; Fig. 20 is a perspective view of a lower mounting block of a refrigerator according to some embodiments; Fig. 21 is an illustration of a hinge at a lower end of a door body of a refrigerator, according to some embodiments; Fig. 22 is an illustration of a door body of a refrigerator, according to some embodiments; and Fig. 23 is an illustration of a door body of a refrigerator, according to some embodiments. List of reference symbols 1 refrigerator; 10 refrigerator bodies; 20 storage chamber; 21 upper storage chamber; 22 lower storage chamber; 30 door bodies; 301 door shell; 302 protruding section; 303 first protruding section; 304 second protruding section; 31 front wall; 32 side wall; 33 side edge; 34 upper mounting groove; 36 lower mounting groove; 37 first convex section; 38 second convex section; 39 slot; 40 hinge plate; 401 connecting section; 402 extension section; 403 blocking section; 41 first hinge axis; 42 second hinge axis; 50 first track slot; 51 first positioning position; 512 first straight line; 52 second positioning position; 523 first curve; 5231 first curve segment; 5232 third curve segment; 53 third positioning position; 534 fourth curve; 54 first final position; 60 second track slot; 61 first management position; 612 second straight line; 62 second leadership position; 623 second curve; 6231 second curve segment; 6232 fourth curve segment; 63 third leadership position; 634 third curve; 64 fourth leadership position; 645 fifth curve; 65 second final position; 70 mounting block; 71 upper mounting block; 711 plate body; 712 extension section; 72 lower mounting block; 721 locking hook; 7211 fastening section; 7212 hook section; 80 boundary block; 81 embedded section; 82 boundary section; 83 reinforcement section; 90 socket; 100 cabinet Detailed description

[0007] The present invention will be described in detail below using exemplary embodiments. However, it should be understood that elements, structures, and features of one embodiment may be advantageously combined in other embodiments without further description.

[0008] In describing the present invention, it is understood that the orientations or positional relationships described by terms such as "center," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "upper," "lower," "inside," "outside," and the like, as illustrated in the drawings, are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the recited devices or elements must have a particular orientation or be constructed or operated in a particular orientation. Therefore, these terms should not be construed as limitations on the present invention.

[0009] Terms such as "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or to indicate the number of technical features specified. Therefore, a feature defined by "first," "second," "third," "fourth," or "fifth" may explicitly or implicitly include one or more of the features.

[0010] In describing the present invention, it is understood that terms such as "installation," "connection," and "connect" are to be understood in a broad sense unless expressly stated and limited otherwise. For example, the terms "installation," "connection," and "connect" may represent a fixed connection, a detachable connection, or a one-piece connection; or they may represent a direct connection, an indirect connection via an intermediate medium, or a connection in which two elements are internally connected. The specific meanings of the above terms in the present invention can be understood by those skilled in the art depending on the situation.

[0011] Embodiments of this application will be described in detail below with reference to the drawings. In the drawings, a side of a refrigerator facing the user during use is defined as the front side, and a side opposite the front side is referred to as the rear side.

[0012] Fig. 1 is a perspective view of a refrigerator according to some embodiments. With reference 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 that supplies cold air to the storage chamber 20.

[0013] In some embodiments, the cold air supply device includes an evaporator, a compressor, a condenser, and an expansion device to generate cold air by utilizing the latent heat of vaporization of the refrigerant.

[0014] In some embodiments, the refrigerator body 10 includes an inner shell forming the storage chamber 20, an outer shell connected to an outer side of the inner shell to form the appearance of the refrigerator 1, and an insulator disposed between the inner shell and the outer shell to insulate the storage chamber 20.

[0015] In some embodiments, the refrigerator body 10 includes a horizontal partition plate that divides the storage chamber 20 into an upper storage chamber 21 and a lower storage chamber 22, and a vertical partition plate that separates the lower storage chamber 22 from one side to the other. The upper storage chamber 21 can serve as a refrigeration chamber for storing food in refrigeration mode by maintaining the air temperature in a range of approximately 0°C to 5°C. The lower storage chamber 22 can serve as a freezing chamber for storing food in freezing mode by maintaining the air temperature in a range of 0°C to minus 30°C (i.e., -30°C).

[0016] In some embodiments, the storage chamber 20 has an open front portion to allow food to be inserted and removed, and the open front portion of the storage chamber 20 can be opened and closed by the rotatable door body 30 to open or close the storage chamber 20.

[0017] In some embodiments, the door body 30 is rotatably supported by a hinge disposed at an upper end of the door body 30 and a lower hinge disposed at a lower end of the door body 30. For example, a hinge may be disposed at the upper end of the door body 30 to rotatably support the door body 30.

[0018] Fig. 2 is a top view of a refrigerator, according to some embodiments. Fig. 3 is an enlarged view of area A in Fig. 2. Fig. 4 is an exploded view of a hinge at an upper right corner of a refrigerator, according to some embodiments. Referring to the Fig. 2 to 4, the hinge has a first hinge axis 41, a second hinge axis 42, a first track slot 50, and a second track slot 60. The first hinge axis 41 is connected to the first track slot 50, and the second hinge axis 42 is connected to the second track slot 60. The first hinge axis 41 moves relatively in the first track slot 50, and the second hinge axis 42 moves relatively in the second track slot 60 during a rotational operation of the door body 30 to be opened or closed.

[0019] For the hinge at 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 axis 41 and the second hinge axis 42 are connected to the hinge plate 40 to form pivot axes. In some embodiments, the hinge plate 40, the first hinge axis 41, and the second hinge axis 42 are integrally formed. In some other embodiments, the hinge plate 41, the first hinge axis 41, and the second hinge axis 42 are provided separately and assembled separately from each other.

[0020] In relation to Fig. 4, the hinge plate 40 includes a connecting portion 401 having a substantially horizontal plate shape, which is connected to the refrigerator body 10, and an extending portion 402 extending forward from the connecting portion 401 and having a horizontal plate shape. The connecting portion 401 can be attached to the refrigerator body 10 using fasteners such as screws, pins, and bolts.

[0021] In some embodiments, the first hinge axis 41 and the second hinge axis 42 are formed on the extension portion 402 and extend vertically downward.

[0022] Fig. 5 is a bottom view of a hinge at a lower end of a door body of a refrigerator according to some embodiments. Fig. 6 is an exploded view of a hinge at a lower end of a door body of a refrigerator according to some embodiments. As shown in Fig. 5 and Fig. 6, in the hinge at 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 axis 41 and the second hinge axis 42 are arranged on the hinge plate 40 and extend upward.

[0023] According to a position of the hinge plate 40, the upper end and the lower end of the door body 30 are respectively provided with the first track slot 50 and the second track slot 60.

[0024] For convenience of description, one of the left and right sides of the door body 30 adjacent to the hinge plate 40 is referred to as the side wall 32. For example, when the hinge plate 40 is disposed on the right side of the refrigerator body 10, the right side of the door body 30 is the side wall 32; when the hinge plate 40 is disposed on the 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 each other to form a side edge 33.

[0025] With continued reference to Fig. 2, planes in which sides of the refrigerator body 10 are arranged adjacent to the hinge plate 40 are defined as a reference plane O. A side of the reference plane O adjacent to a cabinet is an outer side, and another side of the reference plane O opposite to the side of the reference plane O arranged adjacent to the cabinet is an inner side. When the refrigerator is placed for use in a cabinet 100, the cabinet is generally placed 5 mm (i.e., α = 5 mm) away from one side (i.e., the reference plane O) of the refrigerator to avoid factors such as an uneven user floor and deformation of the cabinet. To ensure that the door body 30 of the refrigerator opens normally, the side edge 33 of the door body 30 must not protrude too much 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.

[0026] Therefore, it is necessary for the door body 30 to be able to move inward during the turning process so that the side edge 33 does not protrude too far beyond the side of the refrigerator body 10. For the hinge plate 40 arranged on the right side of the door body 30, the inside is the left side. This means that the door body 30 can move to the left. For the hinge plate 40 arranged on the left side of the door body 30, the inside is the right side. This means that the door body 30 can move to the right.

[0027] There is a relative movement relationship between the first track slot 50 and the first hinge axis 41, and a relative movement relationship between the second track slot 60 and the second hinge axis 42. Therefore, when the first track slot 50 and the second track slot 60 are stationary reference objects during the opening operation of the door body 30, this corresponds to the movement of the first hinge axis 41 in the first track slot 50 and the movement of the second hinge axis 42 in the second track slot 60. For better illustration, the present invention is introduced by considering an example in which the first track slot 50 and the second track slot 60 are used as reference objects, and the first hinge axis 41 and the second hinge axis 41 move with respect to the reference objects.

[0028] In some embodiments of this application, in a case where the door body 30 rotates to be opened by 90° from a closed state, a movement path of the first hinge axis 41 with respect to the first track slot 50 extends approximately in a direction converging toward the side wall 32 and the front wall 31, and a movement path of the second hinge axis 41 with respect to the second track slot 60 extends approximately in a direction away from the front wall 31 and toward the side wall 32, so that the door body 30 can move inward by a distance during the rotation, thereby avoiding the problem that the door body 30 cannot be opened normally due to interference between the side edge 33 protruding beyond the reference plane O and the cabinet during the opening operation of the door body 30.

[0029] Fig. 7 is a diagram showing a relative position of a first hinge axis and a second hinge axis of a refrigerator according to some embodiments. With reference to Fig. 7, in a case where the door body 30 is in the closed state, the first hinge axis 41 is arranged closer to the side wall 32 and farther from the front wall 31 than the second hinge axis 42. The vertical distance L1 between the first hinge axis 41 and the second hinge axis 42 in a front-to-back direction is greater than or equal to 2.5 mm and less than or equal to 10 mm (ie, 2.5 mm ≤ L1 ≤ 10 mm), and a vertical distance L2 between the first hinge axis 41 and the second hinge axis 42 in a left-right direction is greater than or equal to 7.5 mm and less than or equal to 30 mm (ie, 7.5 mm ≤ L2 ≤ 30 mm).For example, the vertical distance L1 is 5 mm, the vertical distance L2 is 15 mm, and the thickness of the door body 30 is in the range of 44 mm to 53 mm inclusive, so that when the door body 30 is opened, the corners of the door body 30 always protrude a little beyond the side of the refrigerator body 10, and the distance is specifically less than 3 mm.

[0030] Fig. Figure 8 is an illustration of a door body of a refrigerator in a closed state, according to some embodiments. In some embodiments of the present invention relating to the Fig. 8, in a case where the door body 30 is in the closed state, the first hinge axis 41 is arranged at one end portion of the first track slot 50 and the second hinge axis 42 is arranged at one end portion of the second track slot 60. Thus, the starting end portions of the first track slot 50 and the second track slot 60 can be determined. The first track slot 50 extends approximately from the starting end portion to another end portion of the first track slot 50 in a direction converging toward the side wall 32 and the front wall 31. The second track slot 60 extends approximately from the starting end portion to another end portion of the second track slot 60 in a direction away from the front wall 31 and toward the side wall 32.The first track slot 50 and the second track slot 60 each extend in the direction tapering toward the side wall 32 so that the door body 30 can move toward the inside relative to the hinge plate 40.

[0031] In some embodiments, in a case where the door body 30 is in the closed state, a gap is disposed between the second hinge axis 42 and a lower end portion of the second track slot 60, so that in a case where the door body 30 is strongly thrown, the second hinge axis 42 may not be in contact with the lower end portion of the second track slot 60, thereby causing the door body 30 to spring open.

[0032] The detailed operation of rotating and opening the door body 30 from the closed state is explained below: First phase

[0033] Fig. 10 is a representation of the hinge in Fig. 8. With regard to Fig. 10, the first track slot 50 has a first positioning position 51 and a second positioning position 52. A movement path of the first hinge axis 41 from the first positioning position 51 to the second positioning position 52 in the first track slot 50 is a first positioning trajectory line. Similarly, the second track slot 60 has a first guide position 61 and a second guide position 62, and a movement path of the second hinge axis 42 from the first guide position 61 to the second guide position 62 in the second track slot 60 is a first guide trajectory line.

[0034] Fig. 11 is an illustration of a door body of a refrigerator in a first state according to some embodiments. Referring to the Fig. 8 and Fig. 11 moves in a case where the door body 30 rotates to move out of the Fig. 8 shown closed state into a Fig. 11, the first hinge axis 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 axis 42 moves from the first guide position 61 to the second guide position 62 along the first guide trajectory line with respect to the second trajectory slot 60.

[0035] The second positioning position 52 is farther 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 toward the side wall 32. In this way, the first hinge axis 41 moves in the direction toward the side wall 32 and away from the front wall 31, which is equivalent to the door body 30 having the first trajectory slot 50 moving a first distance in a direction (toward the inside) away from the side wall 32 and a distance in a direction (toward the front) toward the front wall 31, so that the inwardly moving door body 30 can prevent the side edge 33 from protruding too far beyond the side of the refrigerator body 10 to contact the cabinet.In a case where the door body 30 is being opened, a right rear end of the door body 30 rotates backward relative to the first hinge axis 41. As a result, a door seal 30a on the door body 30 comes into contact with the front side of the refrigerator body 10, and friction is generated as the door body 30 moves inward. However, in this application, by moving the door body 30 toward the front side, friction between the door seal 30a and the front side of the refrigerator body 10 can be avoided, and the service life of the door seal 30a can be increased.

[0036] The second guide position 62 is farther from the front wall 31 and closer to the side wall 32 than the first guide position 61, and the first guide path line extends in the direction away from the front wall 31 and toward the side wall 32.

[0037] In some embodiments, the first positioning trajectory is a first straight line 512 and the first guide trajectory is a second straight line 612. However, in other embodiments, the first positioning trajectory and the first guide trajectory may be curves.

[0038] In a case where the door body 30 of the refrigerator is in the first state (as 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.

[0039] In this phase, the angle formed by the first straight line 512 and the second straight line 612 is greater than 45°, whereby shaking of the door body 30 due to a small angle formed by the straight line 512 and the second straight line 612, which are almost parallel to each other, can be avoided to improve the stability of the door body 30 during the turning process. Second phase

[0040] In relation to Fig. 10, the first track slot 50 further has a third positioning position 53. A movement path of the first hinge axis 41 from the second positioning position 52 to the third positioning position 53 in the first track slot 50 is a second positioning trajectory line. Accordingly, the second track slot 60 further has a third guide position 63, and a movement path of the second hinge axis 42 from the second guide position 62 to the third guide position 63 in the second track slot 60 is a second guide trajectory line.

[0041] Fig. 13 is an illustration of a door body of a refrigerator in a second state, in accordance with some embodiments. With reference to Fig. 13, in a case where the door body 30 is further from the Fig. 11 shown first state into one in Fig. 13, the second state is less than 90°, and the first hinge axis 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 axis 42 moves from the second guide position 62 to the third guide position 63 along the second guide trajectory line with respect to the second trajectory slot 60.

[0042] The third positioning position 53 is located 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 toward the front wall 31 and the side wall 32, so that the door body 30 can move inward by a second distance.

[0043] The third guide position 63 is located farther from the front wall 31 and closer to the side wall 32 than the second guide position 62, and the second guide path line extends in the direction away from the front wall 31 and toward the side wall 32.

[0044] In some embodiments, the second positioning trajectory line is a first curve 523 and the second guide trajectory line is a second curve 623. However, in other embodiments, the second positioning trajectory line and the second guide trajectory line may be straight lines.

[0045] In a case where the door body 30 is in a closed state, a center of curvature of the first curve 523 is located on one side of the first curve 523 toward the front wall, and a center of curvature of the second curve 623 is located on one side of the second curve 623 toward the side edge.

[0046] The present invention divides the process in which the door body 30 moves inward when opening into two different phases, namely the movement to the first state along a straight line and the movement to the second state along a curve, whereby a problem that the door body 30 shakes due to the almost parallel movement paths when the door body rotates at a large angle only along a straight line or only along a curve can be avoided.

[0047] In some embodiments, during an operation 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 outside of the reference plane O and moves toward the inside. During this operation, the distance β that the side edge 33 extends beyond the reference plane O is always smaller than the distance α (5 mm) between the reference plane O and the cabinet, so that the side edge 33 does not touch and interfere with the cabinet. At the same time, the side edge 33 of the door body 30 is arranged on the outside of the reference plane O, thereby avoiding the user feeling a discontinuity when opening the door when the door body 30 moves a large distance to the inside of the reference plane O.

[0048] 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, a length of the first straight line 512 is shorter than that of the first curve 523, and a length of the second straight line 612 is shorter than that of the second curve 623. In this way, the first hinge axis 41 and the second hinge axis 42 each perform a linear movement with a small distance only at the beginning and then perform a curved movement with a large angle. The curved movement can ensure the continuity of the movement of the door body 30 and prevent the user from feeling a discontinuity because the door body 30 moves inward during a linear movement.

[0049] In some embodiments of the second phase, the first curve 523 and the second curve 623 each have at least two curve segments with decreasing curvature.

[0050] In this way, as the curvature of the curve decreases, the distance by which the door body 30 moves inward at a unit angle decreases. That is, the movement of the door body 30 moving inward slows down during an operation in which the door body 30 rotates to open and moves inward to ensure the continuity of the door body 30 during the movement.

[0051] With reference to the Fig. 12 and Fig. 13, in some embodiments of the curvature change, the first curve 523 includes a first curve segment 5231 and a third curve segment 5232 that are sequentially connected, and the second curve 623 includes a second curve segment 6231 and a fourth curve segment 6232 that are sequentially connected. The curvature of the third curve segment 5232 is less than that of the first curve segment 6231, and the curvature of the fourth curve segment 6232 is less than that of the second curve segment 6231.

[0052] In a case where the first hinge axis 41 moves along the first curve segment 5231, the second hinge axis 42 moves along the second curve segment 6231. During such an operation, the distance by which the door body 30 moves inward is d1 when the door body 30 is opened at a unit angle. As the first hinge axis 41 further moves along the third curve segment 5232, the second hinge axis 42 moves along the fourth curve segment 6232. During this operation, the distance by which the door body 30 moves inward is d2 when the door body 30 is opened at a unit angle. The distance d2 is smaller than the distance d1 (i.e., d2 <d1). Als konkretes Beispiel kann der Abstand d2 die Hälfte des Abstands d1 betragen (d. h. d2 = d1 / 2).

[0053] In other embodiments, the first curve 523 and the second curve 623 may each have three or more curve segments of decreasing curvature.

[0054] In some other embodiments of the curvature change, the curvatures of the first curve 523 and the first curve 623 each decrease. This also ensures that the movement of the door body 30 is slowed down during a rotational operation of the door body 30 to open and move inward, ensuring the continuity of the door body 30 during the movement. Third phase

[0055] Fig. 14 is an illustration of a door body of a refrigerator in a 90° opening state, in accordance with some embodiments. With reference to Fig. 14, the door body 30 leads in a case where the door body 30 is further from the Fig. 13 shown second state into one in Fig. 14, only a rotational movement, and the position of the first hinge axis 41 remains unchanged in the first track slot 50, the door body 30 rotates with the first hinge axis 41 as a circle center, and the second hinge axis 42 moves along a third guide track line in the second track slot 60 to a fourth guide position 64. The third guide track line has the shape of an arc, and the fourth guide position 64 is located farther from the front wall 31 and closer to the side wall 32 than the third guide position 63.

[0056] In some embodiments, in a case where the door body 30 is in a 90° open state, a vertical gap γ is provided 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. That is, the front wall 31 of the door body 30 is located on the inside of the reference plane O, and the distance from the front wall 31 to the reference plane O is γ, where the distance γ is greater than 0, so that the door body 30 can be further opened at a small angle without causing interference with the cabinet. In such an example where the refrigerator is arranged in the cabinet, the door body 30 can be opened to an opening angle of more than 90°, and the opening angle is approximately in a range of 105° to 110°, inclusive.

[0057] In order to enable the refrigerator to be opened at a large angle in a case where the refrigerator is not installed in the cabinet for use, the embodiments improve the first track slot 50 and the second track slot 60. Fourth phase

[0058] In relation to Fig. 10, the first track slot 50 also has a first end position 54, and a movement path of the first hinge axis 41 from the third positioning position 53 to the first end position 54 in the first track slot 50 is a third positioning trajectory line. Accordingly, the second track slot 60 also has a second end position 65, and a movement path of the second hinge axis 42 from the fourth guide position 64 to the second end position 65 in the second track slot 60 is a fourth guide trajectory line.

[0059] Fig. 15 is an illustration of a door body of a refrigerator in a maximum open state, in accordance with some embodiments. With reference to Fig. 15 moves in a case where the door body 30 is opened further from the 90°, as in Fig. 14, the first hinge axis 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, and the second hinge axis 42 moves from the fourth guide position 64 to the second end position 65 along the fourth guide trajectory line with respect to the second trajectory slot 60.

[0060] The first end position 54 is located 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 toward the front wall 31 and the side wall 32. The second end position 65 is located closer to the front wall 31 and the side wall 32 than the fourth guide position 64, and the fourth guide trajectory line extends from the fourth guide position 64 to the second end position 65 in a direction toward the front wall 31 and the side wall 32.

[0061] In the above description, the extending directions of the moving lines use a moving direction of the first hinge axis 41 relative to the first track slot 50 or a moving direction of the second hinge axis 42 relative to the second track slot 60 during the opening operation of the door body 30 as a reference.

[0062] In such an embodiment, the third positioning trajectory line is a fourth curve 534 and the fourth guide trajectory line is a fifth curve 645. However, in other embodiments, the third positioning trajectory line and the fourth guide trajectory line may also be straight lines.

[0063] If the movement trajectory in this phase is still the same as the single rotational movement that the door body 30 made in the previous phase, a phenomenon in which the door body 30 shakes may easily occur in a large rotation range if the movement tendencies of the first hinge axis 41 and the second hinge axis 42 are parallel to each other. Therefore, in this phase, the side edge of the door body 30 is set to move forward and inward a distance during rotation, so that the movement trajectory of the first hinge axis 41 and the movement trajectory of the second hinge axis 42 can have an included angle at each point.

[0064] In particular, an included angle between tangents of the movement paths of the first hinge axis 41 and the second hinge axis 42 at corresponding points is greater than 30° in order to ensure the stationarity of the movement of the door body 30.

[0065] In some embodiments of this application, the first hinge axis 41 mainly plays a positioning role and the second hinge axis 42 mainly plays a guiding role. In the two hinge axes, the first hinge axis 41 is a main axis and the second hinge axis 42 is an auxiliary axis, and the force is mainly concentrated on the main axis. Therefore, the first hinge axis 41 is formed longer than the second hinge axis 42, and accordingly, the first track slot 50 is formed deeper than the second track slot 60. In this way, it is possible to avoid material waste due to the second hinge axis 42 being too long, and also to avoid a problem that the track slot is easily separated from the hinge axis when the door body is tilted and the first hinge axis 41 is short, thus saving material costs on the basis of ensuring structural reliability.

[0066] Furthermore, since the force is concentrated on the first hinge axis 41, the diameter of the first hinge axis 41 can be larger than that of the second hinge axis 42. In this way, the first hinge axis 41 is thick and can withstand large forces, and has sufficient strength to withstand the force in a case where the door body is tilted. The second track slot 60 is formed long and occupies a large space in the thickness direction of the door body. Therefore, the second hinge axis 42 can be thin and the second track slot 60 can be formed correspondingly narrow, so that the door body can be designed thin, the overall thickness of the refrigerator can be small, and the refrigerator has the advantage of being small in volume.

[0067] Fig. 16 is an illustration of a hinge axis of a refrigerator according to some embodiments. With reference to Fig. 16, bushings 90 are arranged outside the first hinge axis 41 and the second hinge axis 42, and the bushing 90 can rotate relative to the axis. During the movement of a two-axis hinge, the bushing 90 rotates relative to the hinge axis while sliding relative to the track slot, which can reduce friction and increase service life. The bushing 90 can be formed of wear-resistant polyformaldehyde (POM), and the bushing 90 can be connected to the hinge axis via a bearing or to the hinge plate 40 via a bearing.

[0068] In other embodiments, a POM lining may be attached to an inner wall of the track slot, and the hinge axis moves within the lining.

[0069] In some embodiments of this application relating to the Fig. 17 to 20, the door body 30 has a mounting block 70 mounted at a position of the door body 30 opposite the hinge plate 40, wherein the first track slot 50 and the second track slot 60 are arranged on the mounting block 70.

[0070] The mounting block 70 has an upper mounting block 71 arranged at the upper end of the door body 30 and a lower mounting block 72 arranged at the lower end of the door body 30.

[0071] In particular, the upper mounting block 71, as shown in the Fig. 17 and Fig. 18, a plate body 711 and an extension portion 712 formed by a downwardly extending bottom surface of the plate body 711. The first track slot 50 and the second track slot 60 are recessed downward from an upper surface of the plate body 711 to the extension portion 712. The shape of the extension portion 712 corresponds to the track slots.

[0072] The upper end of the door body 30 is correspondingly provided with an upper receiving groove 34. The upper mounting block 71 is inserted into the upper receiving groove 34, and then the plate body 711 is firmly connected to the door body 30 by means of screws or the like.

[0073] In particular, the lower mounting block 72, as shown in the Fig. 19 and Fig. 20, the door body 30 has the same structures as the plate body 711, the extension portion 712, and the track slots of the upper mounting block 71. An upper surface of the plate body 711 extends upward to form the extension portion 712 of the lower mounting block 72. The first track slot 50 and the second track slot 60 are recessed upward from the lower surface of the plate body 711 to the extension portion 712. The lower end of the door body 30 is provided with a lower receiving groove 36. The lower mounting block 72 is inserted into the lower receiving groove 36, and then the plate body 711 is firmly connected to the door body 30 by means of screws or the like.

[0074] The upper mounting block 71 and the lower mounting block 72 can be made of POM. POM has strong friction resistance and can improve the service life of the hinge.

[0075] In some embodiments of this application, the lower mounting block 72 may be described with reference to Fig. 6 have a locking hook structure. Specifically, the lower mounting block 72 has a locking hook 721 disposed on the inside of the plate body 711. The locking hook 721 extends inward and is bent toward the back. An opening of the locking hook 721 faces the plate body 711, and a free end of the locking hook 721 is disposed on the back.

[0076] A locking 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 outward. When the door body 30 is in the closed state, the locking hook 721 on the door body 30 engages the locking portion 403 on the hinge plate 40 to lock the door body 30 and prevent the door body 30 from closing tightly and impairing the refrigerating and freezing performance of the refrigerator. When the door body 30 is opened, the locking hook 721 is deformed by the force and overcomes the locking of the locking portion 403, thereby disengaging from the locking portion 403.

[0077] The locking hook 721 may include a fastening portion 7211 and a hook portion 7212. The fastening portion 7211 is connected to the plate body 711, and the hook portion 7212 is connected to the fastening portion 7211 and bent backward. Screws extend through the fastening portion 7211 and are connected to the door body 30 to reinforce the connection strength between the fastening portion 7211 and the door body 30, so that only the hook portion 7212 can be deformed when the locking hook 721 detaches from the blocking portion 403.

[0078] Free ends of the hook portion 7212 and the blocking portion 403 each have the shape of an arc, which is advantageous for hooking or releasing the hook portion 7212 from the blocking portion 403 along the arc.

[0079] 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 disposed approximately in the front-to-back direction. Furthermore, a slit 39 is disposed 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 slit 39. In this way, the deformation of the fixing portion 7211 in the front-to-back direction can be avoided by restricting the first convex portion 37 and the second convex portion 38.

[0080] It is noted that the locking hook 721 may also be arranged on the upper mounting block 71 and the blocking portion 403 is correspondingly arranged on the hinge plate 40 arranged at the upper end of the door body 30.

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

[0082] In particular, with reference to the Fig. 19 and Fig. 21, a limit block 80 is disposed at the lower end of the door body 30, and the limit block 80 is disposed 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 limit block 80 is in contact with one side 404 of the hinge plate 40 to prevent the door body 30 from rotating further.

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

[0084] The embedded portion 81 is in the form of a plate and is mounted in the lower receiving groove 36 of the door body 30. The plate body 711 of the lower mounting block 72 clamps the embedded portion 81 to the lower end of the door body 30 to fix the limit block 80 to the door body 30.

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

[0086] The limiting portion 82 is shaped like a block, and a portion of the lower end of the reinforcing portion 83 extends further downward to form the limiting portion 82. The limiting portion 82 extends vertically beyond the lower surface of the door body 30, so that when the door body 30 drives the limiting block 80 to rotate to the maximum angle, the limiting portion 82 is blocked by the side 404 of the hinge plate 40, thereby forcing the door body 30 to be opened no further.

[0087] The limit block 80 is clamped to the door body 30 by the lower mounting block 72, whereby the connection structure between the limit block 80 and the door body 30 can be omitted and the structure of the product can be simplified, which has the advantage of a simple structure.

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

[0089] If the distance between the first hinge axis 41 and the second hinge axis 42 is large, the movement of the hinge will be severely affected, and the normal rotation of the hinge may even be impaired if the door body 30 is tilted or the two axes are not parallel to each other. Therefore, in some embodiments of this application relating to Fig. 18, a thickness of the plate body 711 of the mounting block 70 is marked as L1, and a minimum wall thickness between the first track slot 50 and the second track slot 60 is marked as L2, where the thickness L2 is 0.5 to 1 times the minimum wall thickness L1. In this way, it is possible to keep the distance between the first hinge axis 41 and the second hinge axis 42 small, so that the movement of the hinge is less affected, while the strength of the mounting block 70 is not compromised when the door body is slightly inclined or the two axes are not parallel to each other.

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

[0091] As in the Fig. 22 and Fig. As shown in Fig. 23, a position of the door body 30 corresponding to the upper-end hinge plate 40 is recessed downward to form the first track slot 50 and the second track slot 60. A position of the door body 30 corresponding to the lower-end hinge plate 40 is recessed upward to form the first track slot and the second track 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 track slot 50 and the second track slot 60 are formed by an outer end surface of the door shell 301 being recessed inward toward the protruding portion 302.

[0093] The protruding portion 302 may be formed integrally 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 track slot 50, and the second protruding portion 304 has a shape corresponding to the second track slot 60.

[0094] A thickness of the door shell 301 is denoted as H1, and a minimum wall thickness between the first track slot 50 and the second track slot 60 is denoted as H2, where the thickness H2 is 0.5 to 1 times the minimum wall thickness H1. In this way, it is possible to keep the distance between the first hinge axis 41 and the second hinge axis 42 small, so that the movement of the hinge is less affected, while the strength of the mounting block 70 is not compromised when the door body is slightly tilted or the two axes are not parallel to each other.

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

[0096] In this application, the door body 30 moves inward by a first distance and forward by a distance when the door body 30 is initially opened. The door body 30 moves inward by the first distance, which can ensure that the door body 30 does not collide with the cabinet, and the door body 30 moves forward by the distance, which can prevent wear due to friction between the door seal 30a and the front of the refrigerator body 10.

[0097] In this application, it is possible to avoid a problem in which the door body 30 shakes due to the almost parallel moving trajectories when the door body rotates at a large angle only along a straight line or a curve by dividing the process of rotating the door body 30 to open and move inward into two phases (ie, the moving trajectories of the first hinge axis 41 and the second hinge axis 42 are straight lines in a case where the door body 30 is opened from the closed state to the first state, the moving trajectories of the first hinge axis 41 and the second hinge axis 42 are curves in a case where the door body 30 is further 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).Furthermore, the first hinge axis 41 and the second hinge axis 42 each initially perform a linear movement over a short distance and then perform a curved movement with a large angle. The curved movement can ensure the continuity of the movement of the door body 30 and prevent the user from feeling a discontinuity due to the door body 30 moving inward 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 curved paths of the movements of the first hinge axis 41 and the second hinge axis 42 each have at least two curved segments with decreasing curvature, so that a distance at which the door body 30 moves inward at a unit angle can decrease, can slow down the movement of the door body 30 during a rotating operation of the door body 30 to open and move inward to ensure the continuity of the door body 30 during the movement.

[0099] In this application, in a case where the door body 30 is further opened from 90°, the movement path of the first hinge axis 41 is the fourth curve 54 and the movement path of the second hinge axis 42 is the fifth curve 645, so that the movement path of the first hinge axis 41 and the movement path of the second hinge axis 42 can have an included angle at each point, thereby avoiding the problem that the door body 30 tends to wobble when rotating within a large angle range and ensuring the stationary movement of the door body 30.

[0100] In this application, the first hinge axis moves from one end of the first track slot to the other end of the first track slot during the entire opening operation of the door body 30, and the second hinge axis moves from one end of the second track slot to the other end of the second track slot, and the moving operation is not repeated, thereby ensuring the continuity in opening the door body 30.

[0101] The above descriptions are merely specific embodiments of the present invention, but the scope of the present invention is not limited thereto. Anyone skilled in the art can conceive modifications or substitutions within the technical scope of the present invention, which are within the scope of the present invention. Therefore, the scope of the present invention is subject to the scope of the claims. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CH 202110844775.7

[0001]

Claims

[1] Refrigerator, with a refrigerator body (10); and a door body (30) rotatably supported by a hinge disposed at an upper end of the door body (30) and a hinge disposed at a lower end of the door body (30), the upper and lower ends of the door body (30) each being provided with a first track slot (50) and a second track slot (60); wherein the hinge arranged at the upper end of the door body (30) has a hinge plate (40) connected to an upper end of the refrigerator body (10), and a first hinge axis (41) and a second hinge axis (42) connected to the hinge plate (40) to form rotation axes; the hinge arranged at the lower end of the door body (30), a hinge plate (40) connected to a lower end of the refrigerator body (10), and a first hinge axis (41) and a second hinge axis (42) connected to the hinge plate (40) to form the rotation axes; the first hinge axis (41) is in fitting engagement with the first track slot (50) and the second hinge axis (42) is in fitting engagement with the second track slot (60); in a case where the hinge plate (40) is arranged 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 arranged on a left side of the refrigerator body (10), a left side of the door body (30) is the side wall (32); in a case where the door body (30) is in a closed state, the first hinge axis (41) is closer to the side wall (32) and farther from a front wall (31) of the door body (30) than the second hinge axis (42); the first track slot (50) has a first positioning position (51) and a second positioning position (52), a movement path of the first hinge axis (41) in the first track slot (50) from the first positioning position (51) to the second positioning position (52) is a first positioning track line; the second track slot (60) accordingly has a first guide position (61) and a second guide position (62), a movement path of the second hinge axis (42) in the second track slot (60) from the first guide position (61) to the second guide position (62) is a first guide track line; in a case where the door body (30) is opened from the closed state to a first state, the first hinge axis (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); while the second hinge axis (42) moves from the first guide position (61) to the second guide position (62) along the first guide movement 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 track line extends in a direction away from the front wall (31) and toward the side wall (32); the second guide position (62) is farther away from the front wall (31) and closer to the side wall (32) than the first guide position (61), and the first guide track line extends in a direction away from the front wall (31) and toward the side wall (32); the first track slot (50) further has a third positioning position (53), a movement path of the first hinge axis (41) in the first track slot (50) from the second positioning position (52) to the third positioning position (53) is a second positioning track line; and the second track slot (60) correspondingly further has a third guide position (63), a movement path of the second hinge axis (42) in the second track slot (60) from the second guide position (62) to the third guide position (63) is a second guide track line; in a case where the door body (30) is further opened from the first state to a second state, the first hinge axis (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 axis (42) moves from the second guide position (62) to the third guide position (63) along the second guide movement line with respect to the second trajectory slot (60); the third positioning position (53) is arranged closer to the front wall (31) and the side wall (32) than the second positioning position (52), and the second positioning path line extends from the second positioning position (52) to the third positioning position (53) in a direction that runs towards the front wall (31) and the side wall (32); the third guide position (63) is arranged further away from the front wall (31) and closer to the side wall (32) than the second guide position (62), and the second guide path line extends in a direction that runs away from the front wall (31) and towards the side wall (32); an opening angle of the door body (30) in the second state is less than 90°; and in a case where the door body (30) is further opened from the second state to a state with an opening angle of 90°, a position of the first hinge axis (41) in the first track slot (50) remains unchanged, the door body (30) rotates with the first hinge axis (41) as the center of a circle, and the second hinge axis (42) moves along a third guide track line in the second track slot (60) to a fourth guide position (64); the third guide track line has the shape of an arc, and the fourth guide position (64) is located farther from the front wall (31) and closer to the side wall (32) than the third guide position (63). [2] The refrigerator according to claim 1, wherein in a case where the door body (30) is in a closed state, a vertical distance (L1) between the first hinge axis (41) and the second hinge axis (42) in a front-rear direction is greater than or equal to 2.5 mm and less than or equal to 10 mm, and a vertical distance (L2) between the first hinge axis (41) and the second hinge axis (42) in a left-right direction is greater than or equal to 7.5 mm and less than or equal to 30 mm. [3] A refrigerator according to claim 1 or 2, wherein the thickness of the door body (30) is in the range of 44 mm to 53 mm inclusive and a corner of the door body (30) extends less than 3 mm beyond a side of the refrigerator body (10) during opening of the door body (30). [4] The refrigerator according to any one of claims 1 to 3, wherein in a case where the door body (30) is in the closed state, the first hinge axis (41) is arranged at an end portion of the first track slot (50) and the second hinge axis (42) is arranged at an end portion of the second track slot (60). [5] The refrigerator according to claim 4, wherein in a case where the door body (30) is in a closed state, the second hinge axis (42) has a gap with a lower end portion of the second track slot (60). [6] Refrigerator according to one of claims 1 to 5, wherein the refrigerator (1) satisfies at least one of the following conditions: the first positioning path line and the first guide path line are curves; or the second positioning path line and the second guide path line are curves; or 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); or a length of the first hinge axis (41) is greater than a length of the second hinge axis (42); or the first hinge axis (41) moves from one end of the first track slot (50) to another end of the first track slot (50) and the second hinge axis (42) moves from one end of the second track slot (60) to another end of the second track slot (60) during the entire opening process of the door body (30). [7] The refrigerator according to any one of claims 1 to 6, wherein the door body (30) has a mounting block (70), the mounting block (70) is mounted at a position of the door body (30) corresponding to the hinge plate (40), and the first track slot (50) and the second track slot (60) are arranged on the mounting block (70). [8] The refrigerator according to claim 7, wherein the mounting block (70) comprises 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). [9] The refrigerator according to claim 8, wherein the upper mounting block (71) comprises a plate body (711) and a second extension portion (712) formed by a downwardly extending lower surface of the plate body (711); an upper surface of the plate body (711) is recessed downward onto the second extension portion (712) to form the first track slot (50) and the second track slot (60). [10] A refrigerator according to claim 8 or 9, wherein the first track slot (50) in the upper mounting block (71) is deeper than the second track slot (60) in the upper mounting block (71). [11] Refrigerator according to one of claims 8 to 10, wherein the refrigerator (1) satisfies at least one of the following conditions: an upper receiving groove (34) is arranged correspondingly at the upper end of the door body (30), and the upper mounting block (71) is inserted into the upper receiving groove (34); or a lower receiving groove (36) is arranged correspondingly at the lower end of the door body (30), and the lower mounting block (72) is inserted into the lower receiving groove (36). [12] The refrigerator according to any one of claims 8 to 11, wherein the lower mounting block (72) comprises a plate body (711) and a second extension portion (712), an upper surface of the plate body (711) extending upward to form the second extension portion (712) of the lower mounting block (72), and a lower surface of the plate body (711) being recessed upward into the second extension portion (712) to form the first track slot (50) and the second track slot (60). [13] The refrigerator according to any one of claims 8 to 12, wherein the lower mounting block (72) comprises a plate body (711), a second extension portion (712), and a locking hook (721) disposed on an inner side of the plate body (711); the locking hook (721) extends to the inner side of the plate body (711) and is bent toward the rear side of the door body (30), an opening of the locking hook (721) faces the plate body (711), and a free end of the locking hook (721) is disposed on the rear side of the door body (30); an outwardly extending blocking portion (403) is arranged on an inner side of the hinge plate (40) arranged at the lower end of the door body (30); in a case where the door body (30) is in a closed state, the locking hook (721) on the door body (30) hooks into the blocking portion (403) of the hinge plate (40) to lock the door body (30); and in a case where the door body (30) is opened, the locking hook (721) is deformed due to the force and overcomes the blocking of the blocking portion (403) to release from the blocking portion (403). [14] The refrigerator according to claim 13, wherein the locking hook (721) has a fixing portion (7211) and a hook portion (7212), the fixing portion (7211) being connected to the panel body (711), the hook portion (7212) being connected to the fixing portion (7211) and bent backward, and a screw passing through the fixing portion (7211) and being connected to the door body (30). [15] A refrigerator according to any one of claims 8 to 14, wherein a limiting block (80) is arranged at the lower end of the door body (30), and the limiting block (80) is clamped to the door body (30) by the lower mounting block (72); and in a case where the door body (30) rotates to a maximum allowable position, the limit block (80) abuts against one side (404) of the hinge plate (40) to prevent the door body (30) from rotating further.

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