# US 12,760,959 B2 · Refrigerator

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- Number: US 12,760,959 B2
- Document ID: US12760959B2
- Status: Granted
- Kind: B2
- Application number: 18/900,137
- Filed: 2024-09-27
- Published: 2025-01-16
- Granted: 2026-10-13
- Earliest claimed: 2022-06-30
- Assignees: Hisense Refrigerator Co., Ltd.
- Applicants: Hisense Refrigerator Co., Ltd.
- Inventors: Chun Yang; Dong Guo; Xiangping Zhang
- Web page: https://patentgrep.com/patent/US12760959B2

## CPC

- F25D 23/028: {Details}
- E05D 3/18: with sliding pins or guides
- F25D 23/062: {defining a cabinet}
- E05Y 2900/31: for refrigerators
- F25D 2323/024: Door hinges
- F25D 2323/06: Details of walls not otherwise covered
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)
- E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00)
- E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF

## Abstract

A refrigerator includes a box body, a door body, a hinge assembly, and a mounting block. The door body is connected to the box body. The hinge assembly includes a first hinge shaft and a second hinge shaft. The mounting block includes a first trajectory groove and a second trajectory groove. During a process of the door body being rotated to open or close, the first hinge shaft moves relative to the first trajectory groove, and the second hinge shaft moves relative to the second trajectory groove. The first trajectory groove includes a curved groove segment. An end of the curved groove segment extends in a direction proximate to a first side edge, and a distance between the curved groove segment and the door side wall is decreased along a direction from a door rear wall to a door front wall.

## Claims

### Claim 1

A refrigerator, comprising:
a box body, including a plurality of storage compartments, an inner container defining the plurality of storage compartments, a shell forming an appearance of the refrigerator, and a heat insulation layer disposed between the inner container and the shell; wherein the box body includes a first body side wall and a second body side wall disposed opposite to each other; the plurality of storage compartments include a refrigerating compartment and a freezing compartment located below the refrigerating compartment, and an access opening is provided at a front end of any one storage compartment of the plurality of storage compartments;
a refrigeration device used for supplying cold air to the plurality of storage compartments;
at least one door body connected to the box body and used to open and close the access opening corresponding to the any one storage compartment of the plurality of storage compartments; each door body of the at least one door body includes:
a door front wall disposed away from the box body in a case where the door body is closed, a door rear wall disposed opposite to the door front wall and proximate to the box body, and a door side wall disposed proximate to a hinge assembly and connected to the door front wall;
a first side edge W provided by an intersection of the door front wall and the door side wall of the door body; and
a second side edge N provided by an intersection of the door side wall and the door rear wall; wherein in a case where the door body is closed, the first side edge W is located at a side of the second side edge N away from the box body;
the hinge assembly including a hinge plate fixedly connected to the box body; the hinge plate including a connecting portion connected to the box body, an extending portion extending from the connecting portion towards a front side and in a shape of a horizontal plate, and a first hinge shaft and a second hinge shaft integrally provided on the extending portion; wherein in a case where the door body is in a closed state, the first hinge shaft is located at a side of the second hinge shaft proximate to the door side wall and proximate to the door rear wall; and
a mounting block including a plate body and a first trajectory groove and a second trajectory groove provided on the plate body; a lower end surface of the door body being provided with an accommodating groove, and the mounting block being located in the accommodating groove and being fixedly connected to the door body;
wherein the first hinge shaft is adapted to the first trajectory groove, and the second hinge shaft is adapted to the second trajectory groove; during a process of the door body rotating to open or close, the first hinge shaft moves relative to the first trajectory groove, and the second hinge shaft moves relative to the second trajectory groove;
wherein the first trajectory groove includes a curved groove segment; an end of the curved groove segment extends in a direction proximate to the first side edge W, and a distance between the curved groove segment and the door side wall is decreased along a direction from the door rear wall to the door front wall; an end of the second trajectory groove is farther away from the door rear wall and the door side wall than another end of the second trajectory groove;
wherein a center trajectory line of the first trajectory groove is referred to as a first trajectory line S, and a center trajectory line of the second trajectory groove is referred to as a second trajectory line K; a center axis of the first hinge shaft is referred to as a positioning center axis P, and a center axis of the second hinge shaft is referred to as a guiding center axis Q;
in a case where the door body is in the closed state, the positioning center axis P is located at a first positioning point P1 of the first trajectory line S, and the guiding center axis Q is located at a first guiding point Q1 of the second trajectory line K; in a case where the door body is opened to a maximum angle Gmax, the positioning center axis P is located at a sixth positioning point P6 of the first trajectory line S, and the guiding center axis Q is located at a sixth guiding point Q6 of the second trajectory line K;
wherein the first positioning point P1 is an end point that the positioning center axis P reaches away from the door side wall when the positioning center axis P moves along the first trajectory line S; the sixth positioning point P6 is an end point that the positioning center axis P reaches proximate to the door side wall when the positioning center axis P moves along the first trajectory line S; the first guiding point Q1 is an end point that the guiding center axis Q reaches away from the door side wall when the guiding center axis Q moves along the second trajectory line K; the sixth guiding point Q6 is an end point that the guiding center axis Q reaches proximate to the door side wall when the guiding center axis Q moves along the second trajectory line K;
wherein a distance between the first positioning point P1 and the door front wall is referred to as D1, and a distance between the sixth positioning point P6 and the door front wall is referred to as D2,
a distance between the first guiding point Q1 and the door front wall is referred to as Z1, and a distance between the sixth guiding point Q6 and the door front wall is referred to as Z2, wherein Z1<D2;
in a case where the door body is in the closed state, a distance between the first hinge shaft and the second hinge shaft in a first direction parallel to the door side wall is referred to as L1, and L1 is equal to a difference between D1 and Z1; L1 is any value in a range from 2.5 mm to 10 mm; a distance between the first hinge shaft and the second hinge shaft in a second direction perpendicular to the door side wall is referred to as L2, and L2 is any value in a range from 7.5 mm to 30 mm;
wherein there is a first gap J1 between an end surface of the first hinge shaft away from the hinge plate and a groove bottom of the first trajectory groove, and there is a second gap J2 between an end surface of the second hinge shaft away from the hinge plate and a groove bottom of the second trajectory groove; the second gap J2 is greater than or equal to the first gap J1;
wherein the mounting block further includes a lock hook disposed on the plate body and located at a side of the plate body away from the door side wall; the lock hook includes a hooking portion extending towards a side away from the door side wall and bent to a side proximate to the door rear wall; the lock hook is provided with an opening facing towards the plate body; a free end of the lock hook is closer to the door rear wall than a fixed end of the lock hook; and
a side of the hinge plate away from the first body side wall is provided with a blocking portion; a side of the blocking portion proximate to the box body is provided with a hook gap;
in a case where the door body is in the closed state, the free end of the lock hook is accommodated in the hook gap, so that the lock hook is locked with the hinge plate to lock the door body; in a case where the door body is opened, the lock hook is deformed due to force and is disengaged from the blocking portion;
the hinge plate includes a limiting surface; and the limiting surface is disposed at an end of the hinge plate away from the box body and is proximate to the first body side wall;
a lower end portion of a door body proximate to the hinge assembly is provided with a limiting portion; the limiting portion includes an embedded portion and a limiting bar; the limiting portion is a sheet metal member; wherein
the embedded portion is plate-shaped; the mounting block is located at a side of the embedded portion away from the door body, and the mounting block is used to clamp and fix the embedded portion on the door body;
the limiting bar extends out of a surface of the door body from an edge of the embedded portion proximate to the door front wall towards a side away from the door body the surface of the door body;
in a case where the door body is opened from the closed state to the maximum angle Gmax, the limiting bar abuts against the limiting surface to prevent the door body from rotating; and
wherein an angle bisecting plane of an included angle provided by the door front wall and the door side wall is referred to as an angle bisecting plane H; in a case where the door body is closed, a central axis of the first hinge shaft is located at a side of the angle bisecting plane H away from the door side wall.

### Claim 2 (depends on 1)

The refrigerator according to claim 1, wherein the at least one door body includes two door bodies; the two door bodies are disposed opposite to each other;
the refrigerator further comprises:
a torsion spring;
a flipping beam disposed at an end of one of the two door bodies proximate to another of the two door bodies; the flipping beam being connected to the one of the two door bodies through a door hinge; the flipping beam and the door hinge being elastically connected through the torsion spring;
a guiding groove disposed in a top wall of the any one storage compartment; and
a guiding block disposed at a top end of the flipping beam, and cooperated with the guiding groove, so as to implement a switching of different angles between the flipping beam and a corresponding door body;
wherein during a process of the one of the two door bodies being closed from an open state, in a case where the one of the two door bodies is closed to an angle GB0, the hooking portion is in contact with the blocking portion;
in a case where the one of the two door bodies continues to be closed, the blocking portion is interacted with the hooking portion, the hooking portion is elastically deformed, and the hooking portion enters the hook gap;
in a case where the one of the two door bodies is closed to an angle GS, the guiding block at the top end of the flipping beam is in contact with the guiding groove; and
during a process of the one of the two door bodies continuing to be closed, the guiding block is flipped due to a pressure of a groove wall of the guiding groove.

### Claim 3 (depends on 2)

The refrigerator according to claim 2, wherein
in a case where the door body is opened from the closed state to the maximum angle Gmax, the first hinge shaft is in contact with an end portion of the first trajectory groove proximate to the door side wall, and the second hinge shaft is in contact with an end portion of the second trajectory groove proximate to the door side wall.

### Claim 4 (depends on 2)

The refrigerator according to claim 2, wherein
the first trajectory line S includes two trajectory segments extending in different directions, and a connection point of the two trajectory segments is referred to as a second positioning point P2; the first trajectory line S extends from an end thereof away from the door side wall to a direction proximate to the door side wall;
wherein a second angle G2 is an unlocking angle; in a case where the door body is opened to the second angle G2, the central axis of the first hinge shaft moves along the first trajectory line to the second positioning point P2, and the lock hook is disengaged from the blocking portion;
an end point of the central axis of the first hinge shaft on the first trajectory line S proximate to the door side wall is referred to as a sixth positioning point P6; during a process of the door body opening from the second angle G2 to the maximum angle Gmax, the central axis of the first hinge shaft moves along the first trajectory line S towards a direction proximate to the door side wall to the sixth positioning point P6, and a central axis of the second hinge shaft moves along the second trajectory line K towards a direction proximate to the door side wall to the sixth guiding point Q6; and
in a case where the door body is opened to the maximum angle Gmax, the limiting portion abuts against the limiting surface to prevent the door body from opening;
wherein the second angle G2<90°<the maximum angle Gmax.

### Claim 5 (depends on 2)

The refrigerator according to claim 2, wherein
a plane where the access opening of the any one storage compartment is located is referred to as a second reference plane M2; in a case where the door body is closed, a line intersecting a plane where the door front wall is located and a plane where the door side wall is located provides the first side edge W; a plane passing through the first side edge W and parallel to the second reference plane M2 is referred to as a third reference plane M3;
wherein in a case where the door body is closed, the door front wall is coplanar with the third reference plane M3; in a case where the door body is closed, the door front wall is parallel to the second reference plane M2; a fourth gap μ2 is provided between the second hinge shaft and an end wall of the second trajectory groove away from the door side wall, and a width of the fourth gap μ2 is greater than 0; and
in a case where the door body is in the closed state and continues to squeeze a door seal, the door front wall moves to a side of the third reference plane M3 proximate to the box body; an included angle between the door front wall and the third reference plane M3 is referred to as δ1, and δ1 is less than 0°.

### Claim 6 (depends on 2)

The refrigerator according to claim 2, wherein
a plane where the access opening of the any one storage compartment is located is referred to as a second reference plane M2; in a case where the door body is closed, a line intersecting a plane where the door front wall is located and a plane where the door side wall is located provides the first side edge W; a plane passing through the first side edge W and parallel to the second reference plane M2 is referred to as a third reference plane M3;
wherein in a case where the door body is closed, the door front wall is coplanar with the third reference plane M3; in a case where the door body is closed, the door front wall is parallel to the second reference plane M2; a third gap μ1 is provided between the first hinge shaft and an end wall of the first trajectory groove away from the door side wall, and the third gap μ1 is any value in a range from 0 to 0.2 mm; a fourth gap μ2 is provided between the second hinge shaft and an end wall of the second trajectory groove away from the door side wall, and a width of the fourth gap μ2 is greater than 0; and
in a case where the door body is in the closed state and continues to squeeze a door seal, the door front wall moves to a side of the third reference plane M3 proximate to the box body; an included angle between the door front wall and the third reference plane M3 is referred to as δ1, and δ1 is less than 0°.

### Claim 7 (depends on 1)

The refrigerator according to claim 1, wherein
in a case where the door body is opened from the closed state to the maximum angle Gmax, a separation gap μ0 is provided between the second hinge shaft and an end portion of the second trajectory groove proximate to the door side wall, and a width of the separation gap μ0 is greater than 0, so that the second hinge shaft and the end portion of the second trajectory groove are not in contact with each other and have no interaction force.

### Claim 8 (depends on 1)

The refrigerator according to claim 1, wherein
in a case where the door body is opened from the closed state to the maximum angle Gmax, the first hinge shaft is in contact with an end portion of the first trajectory groove proximate to the door side wall; a separation gap μ0 is provided between the second hinge shaft and an end portion of the second trajectory groove proximate to the door side wall, and a width of the separation gap μ0 is greater than 0, so that the second hinge shaft and the end portion of the second trajectory groove are not in contact with each other and have no interaction force.

### Claim 9 (depends on 1)

The refrigerator according to claim 1, further comprising a door seal; the door seal being disposed on the door rear wall; the door seal having a side sealing edge F proximate to the door side wall and away from the door front wall;
wherein during a process of the door body being closed from the open state, in a case where the door body is closed to an angle GB0, the hooking portion is in contact with the blocking portion; in a case where the door body continues to be closed, the blocking portion is interacted with the hooking portion, the hooking portion is elastically deformed, and the hooking portion enters the hook gap;
wherein the refrigerator further comprises a flipping beam, a guiding block disposed on a top end of the flipping beam, and a guiding groove disposed in the box body; in a case where the door body is closed to an angle GS, the guiding block is in contact with the guiding groove; during a process of the door body continuing to be closed, the guiding block is flipped due to a pressure of a groove wall of the guiding groove;
in a case where the door body is opened to 90°, a surface of the door seal away from the door front wall is approximately parallel to the first body side wall; and
during a process of the door body being opened from 90° to the maximum angle Gmax, an included angle between the surface of the door seal away from the door front wall and the first body side wall is increased monotonically, and a distance between the side sealing edge F and a plane where a surface of the door seal away from the door front wall is located in a case where the door body 30 is opened to 90° is increased monotonically.

### Claim 10 (depends on 9)

The refrigerator according to claim 9, wherein
an axis radius of the first hinge shaft and the second hinge shaft is rT, and a minimum curvature radius of curve trajectories of the first trajectory line S and the second trajectory line K is ρmin; rT and ρmin satisfy a relationship: rT≤0.8 ρmin.

### Claim 11 (depends on 10)

The refrigerator according to claim 10, wherein the door seal includes a side seal;
during a process of the door body being opened from the closed state to a first angle G1, an average change amount of a distance between the central axis of the first hinge shaft and an edge of the side seal away from the door side wall in a case where the door body 30 is opened for a unit angle is referred to as ζ1; during a process of the door body being opened from the first angle G1 to the second angle G2, an average change amount of a distance between the central axis of the first hinge shaft and an edge of the side seal away from the door side wall in a case where the door body 30 is opened for the unit angle is referred to as ζ2, wherein ζ1 and ζ2 satisfy: ζ1>ζ2.

### Claim 12 (depends on 10)

The refrigerator according to claim 10, wherein
in a case where the first hinge shaft moves along a straight line along a straight groove segment of the first trajectory groove, the door body moves a distance ξ1 to an inner side when being rotated and opened for a unit angle; and
in a case where the first hinge shaft moves along a curved line along the curved groove segment of the first trajectory groove, the door body moves a distance ξ2 to the inner side when being rotated and opened for the unit angle; wherein ξ1 and ξ2 satisfy: ξ1>ξ2.

### Claim 13 (depends on 1)

The refrigerator according to claim 1, wherein
an axis radius of the first hinge shaft and the second hinge shaft is rT, and a minimum curvature radius of curve trajectories of the first trajectory line S and the second trajectory line K is ρmin; rT and ρmin satisfy a relationship: rT≤0.8ρmin,
during a process of the door body being closed from the open state, in a case where the door body is closed to an angle GB0, the hooking portion is in contact with the blocking portion; in a case where the door body continues to be closed, the blocking portion is interacted with the hooking portion, the hooking portion is elastically deformed, and the hooking portion enters the hook gap;
wherein the refrigerator further comprises a flipping beam, a guiding block disposed on a top end of the flipping beam, and a guiding groove disposed in the box body; in a case where the door body is closed to an angle GS, the guiding block is in contact with the guiding groove;
during a process of the door body continuing to be closed, the guiding block is flipped due to a pressure of a groove wall of the guiding groove;
in a case where the first hinge shaft moves along a straight line along a straight groove segment of the first trajectory groove, the door body moves a distance ξ1 to an inner side when being rotated and opened for a unit angle; and
in a case where the first hinge shaft moves along a curved line along the curved groove segment of the first trajectory groove, the door body moves a distance ξ2 to the inner side when being rotated and opened for the unit angle; wherein ξ1 and ξ2 satisfy: ξ1>ξ2.

### Claim 14 (depends on 1)

The refrigerator according to claim 1, wherein
during a process of the door body being closed from the open state, in a case where the door body is closed to an angle GB0, the hooking portion is in contact with the blocking portion; in a case where the door body continues to be closed, the blocking portion is interacted with the hooking portion, the hooking portion is elastically deformed, and the hooking portion enters the hook gap; after the door body is closed to an angle GB1, the deformation of the hooking portion is restored; wherein GB0>GB1;
wherein the refrigerator further comprises a flipping beam, a guiding block disposed on a top end of the flipping beam, and a guiding groove disposed in the box body; in a case where the door body is closed to an angle GS, the guiding block is in contact with the guiding groove; during a process of the door body continuing to be closed, the guiding block is flipped due to a pressure of a groove wall of the guiding groove; wherein GB1>GS; and
wherein the refrigerator further comprises a torsion spring, and the flipping beam is connected to the door body through the torsion spring; in a case where the door body continues to be closed to an angle GF, the flipping beam is flipped over an angle G′F and reaches a critical value of the torsion spring; after the door body is closed to the angle GF, the flipping beam is flipped; wherein GS>GF.

### Claim 15 (depends on 1)

The refrigerator according to claim 1, wherein
a plane where the access opening of the any one storage compartment is located is referred to as a second reference plane M2; in a case where the door body is closed, a line intersecting a plane where the door front wall is located and a plane where the door side wall is located provides the first side edge W; a plane passing through the first side edge W and parallel to the second reference plane M2 is referred to as a third reference plane M3;
wherein in a case where the door body is closed, the door front wall is coplanar with the third reference plane M3; in a case where the door body is closed, the door front wall is parallel to the second reference plane M2; a third gap μ1 is provided between the first hinge shaft and an end wall of the first trajectory groove away from the door side wall, and the third gap μ1 is any value in a range from 0 to 0.2 mm; a fourth gap μ2 is provided between the second hinge shaft and an end wall of the second trajectory groove away from the door side wall, and a width of the fourth gap μ2 is greater than 0;
in a case where the door body is in the closed state and continues to squeeze a door seal, the door front wall moves to a side of the third reference plane M3 proximate to the box body; an included angle between the door front wall and the third reference plane M3 is referred to as δ1, and δ1 is less than 0°;
during a process of the door body being closed from the open state, in a case where the door body is closed to an angle GB0, the hooking portion is in contact with the blocking portion; in a case where the door body continues to be closed, the blocking portion is interacted with the hooking portion, the hooking portion is elastically deformed, and the hooking portion enters the hook gap; after the door body is closed to an angle GB1, the deformation of the hooking portion is restored; wherein GB0>GB1;
wherein the refrigerator further comprises a flipping beam, a guiding block disposed on a top end of the flipping beam, and a guiding groove disposed in the box body; in a case where the door body is closed to an angle GS, the guiding block is in contact with the guiding groove; during a process of the door body continuing to be closed, the guiding block is flipped due to a pressure of a groove wall of the guiding groove; wherein GB1>GS; and
wherein the refrigerator further comprises a torsion spring, and the flipping beam is connected to the door body through the torsion spring; in a case where the door body continues to be closed to an angle GF, the flipping beam is flipped over an angle G′F and reaches a critical value of the torsion spring; after the door body is closed to the angle GF, the flipping beam is flipped; wherein GS>GF.

### Claim 16 (depends on 1)

The refrigerator according to claim 1, wherein
an axis radius of the first hinge shaft and the second hinge shaft is rT, and a minimum curvature radius of curve trajectories of the first trajectory line S and the second trajectory line K is ρmin; rT and ρmin satisfy a relationship: rT≤0.8 ρmin;
a plane where the access opening of the any one storage compartment is located is referred to as a second reference plane M2; in a case where the door body is closed, a line intersecting a plane where the door front wall is located and a plane where the door side wall is located provides the first side edge W; a plane passing through the first side edge W and parallel to the second reference plane M2 is referred to as a third reference plane M3;
wherein in a case where the door body is closed, the door front wall is coplanar with the third reference plane M3; in a case where the door body is closed, the door front wall is parallel to the second reference plane M2; a third gap μ1 is provided between the first hinge shaft and an end wall of the first trajectory groove away from the door side wall, and the third gap μ1 is any value in a range from 0 to 0.2 mm; a fourth gap μ2 is provided between the second hinge shaft and an end wall of the second trajectory groove away from the door side wall, and a width of the fourth gap μ2 is greater than 0;
in a case where the door body is in the closed state and continues to squeeze a door seal, the door front wall moves to a side of the third reference plane M3 proximate to the box body; an included angle between the door front wall and the third reference plane M3 is referred to as δ1, and δ1 is less than 0°;
during a process of the door body being closed from the open state, in a case where the door body is closed to an angle GB0, the hooking portion is in contact with the blocking portion; in a case where the door body continues to be closed, the blocking portion is interacted with the hooking portion, the hooking portion is elastically deformed, and the hooking portion enters the hook gap; after the door body is closed to an angle GB1, the deformation of the hooking portion is restored; wherein GB0>GB1;
wherein the refrigerator further comprises a flipping beam, a guiding block disposed on a top end of the flipping beam, and a guiding groove disposed in the box body; in a case where the door body is closed to an angle GS, the guiding block is in contact with the guiding groove; during a process of the door body continuing to be closed, the guiding block is flipped due to a pressure of a groove wall of the guiding groove; wherein GB1>GS;
wherein the refrigerator further comprises a torsion spring, and the flipping beam is connected to the door body through the torsion spring; in a case where the door body continues to be closed to an angle GF, the flipping beam is flipped over an angle G′F and reaches a critical value of the torsion spring; after the door body is closed to the angle Gr, the flipping beam is flipped; wherein GS>GF; and
in a case where the door body is opened from the closed state to the maximum angle Gmax, a separation gap μ0 is provided between the second hinge shaft and an end portion of the second trajectory groove proximate to the door side wall, and a width of the separation gap μ0 is greater than 0, so that the second hinge shaft and the end portion of the second trajectory groove are not in contact with each other and have no interaction force.

### Claim 17 (depends on 1)

The refrigerator according to claim 1, wherein
in a case where the door body is closed from an angle GB0 to an angle GB1, an elastic deformation amount of the hooking portion reaches a maximum amount of deformation; after the door body is closed to the angle GB1, the deformation of the hooking portion is restored, wherein GB0>GB1;
wherein the refrigerator further comprises a flipping beam, a guiding block disposed on a top end of the flipping beam, and a guiding groove disposed in the box body; in a case where the door body is closed to an angle GS, the guiding block is in contact with the guiding groove; wherein GB1>GS; and
wherein the refrigerator further comprises a torsion spring, and the flipping beam is connected to the door body through the torsion spring; in a case where the door body continues to be closed from the angle GS to an angle GF, the flipping beam is flipped over an angle G′F and reaches a critical value of the torsion spring; after the door body is closed to the angle GF, the flipping beam is flipped; wherein GS>GF.

### Claim 18 (depends on 1)

The refrigerator according to claim 1, wherein
during a process of the door body being opened from the closed state to the maximum angle Gmax, the positioning center axis P of the first hinge shaft moves unidirectionally relative to the first trajectory groove towards the door side wall, so that the door body moves towards an inner side laterally; and
the first trajectory line S extends from the first positioning point ρ1 first towards a direction proximate to the door side wall, and then extends along a curve towards a direction proximate to the door side wall and proximate to the door front wall to the sixth positioning point ρ6; wherein the sixth positioning point ρ6 is located at a side of the first positioning point ρ1 proximate to the door side wall and away from the door front wall.

### Claim 19 (depends on 18)

The refrigerator according to claim 18, wherein the second trajectory line K extends along a curve from the first guiding point Q1 to a direction away from the door front wall and proximate to the door side wall to the sixth guiding point Q6; in a direction from an end of the the second trajectory line K away from the door side wall to the door side wall, a distance between the second trajectory line K and the door front wall is first increased and is then decreased.