Refrigerator

Abstract

The application provides a refrigerator, which comprises a box body with a first body side wall and a second body side wall arranged oppositely, a hinge arranged on the box body and close to the first body side wall, and a door body with a door front wall and a door side wall; a guide round block and a hinge shaft are arranged on the hinge; an end of the door body close to the hinge is provided with a guide groove, the guide round block is installed in the guide groove and matched with opposite groove walls of the guide groove; a positioning groove in a curved shape is arranged on a groove bottom of the guide groove, the positioning groove extends from an end far away from the door side wall to a direction close to the door side wall, and the distance between the positioning groove and the door front wall first increases and then decreases; the hinge shaft is matched with the positioning groove; when the door body is opened from a closed state, the guide round block moves relative to the guide groove; the hinge shaft moves relative to the positioning groove, so that the door body can rotate and move outward by a distance; the application effectively avoids that one door body of a side-by-side refrigerator is opened to drive the other door body to open, thus increasing the opening area of the refrigerator and reducing cold air overflow.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a refrigerator. BACKGROUND

[0002] In the related art, for a refrigerator having two oppositely arranged door bodies, the two oppositely arranged door bodies of the refrigerator are cooperatively opened or closed to open or close a taking and placing opening. In order to ensure the sealing performance when the door bodies are closed, a sealing strip is arranged on one side of any one of the two door bodies close to the other door body in the existing refrigerator. When the two door bodies are closed, the sealing strip on any one of the two door bodies is sealingly matched with the sealing strip on the other door body. That is, when the two door bodies are closed, the two sealing strips are pressed in the gap between the two door bodies to effectively seal the space between the two door bodies and the cabinet, so as to prevent cold air from overflowing.

[0003] The hinge structure of the refrigerator door body is mostly in the form of a single shaft. When one of the door bodies is opened, the other door body is opened due to the tight pressing of the sealing strips on the two door bodies in the closed state, which causes the taking and placing opening to have an increased opening area, increases the amount of cold air overflow, and increases the power consumption. SUMMARY

[0004] The present application at least partially solves one of the problems in the related art.

[0005] Therefore, the present application aims to provide a refrigerator, and the hinge structure of the refrigerator enables the door body to move outward by a certain distance when the door body is opened.

[0006] The refrigerator according to the present application comprises:

[0007] a cabinet having a first body side wall and a second body side wall arranged oppositely;

[0008] a hinge arranged on the cabinet and close to the first body side wall, wherein the hinge is provided with a guide round block and a hinge shaft fixed with the guide round block;

[0009] a door body having a door front wall away from the cabinet when the door body is closed and a door side wall close to the hinge and connected with the door front wall;

[0010] a guide groove arranged at the end of the door body close to the hinge, wherein the guide round block is installed in the guide groove and cooperates with the opposite groove walls of the guide groove;

[0011] a positioning groove in the form of a curved groove and located on the groove bottom of the guide groove, wherein the positioning groove extends from the end away from the door side wall to the direction close to the door side wall, and the distance between the positioning groove and the door front wall first increases and then decreases, and the hinge shaft cooperates with the positioning groove;

[0012] When the door body is closed, the hinge shaft is located at one end of the positioning slot away from the door side wall; during the opening of the door body from the closed state, the guide round block is always matched with the opposite two groove walls of the guide slot and moves relative to the guide slot; the hinge shaft moves relative to the positioning slot towards the direction close to the door side wall, so that the door body can move a distance away from the second body side wall while rotating.

[0013] In some embodiments of the present application, the guide slot comprises a first guide strip and a second guide strip arranged in parallel, the first guide strip is located on the side of the second guide strip away from the door side wall, and the positioning slot is located between the first guide strip and the second guide strip and extends in the direction from the first guide strip to the second guide strip; the first guide strip and the second guide strip are both matched with the guide round block.

[0014] In some embodiments of the present application, the central trajectory line of the guide slot is recorded as a second trajectory line K, and the second trajectory line K is perpendicular to the door front wall.

[0015] In some embodiments of the present application, the central axis of the hinge shaft is recorded as a positioning central axis P, and the central axis of the guide round block is recorded as a guide central axis I; in the projection of the box top wall, the radius of the circular cross section of the guide round block passing through the positioning central axis P is recorded as an axis center radius IA, and the length of the line segment IP is greater than the length of the line segment AP.

[0016] In some embodiments of the present application, the plane passing through the guide central axis I and parallel to the first body side wall is recorded as a first reference plane M1; in the projection of the box top wall, the included angle between the axis center radius IA and the first reference plane M1 is recorded as a first included angle θ; wherein the first included angle θ is any value within the range of 25°-35°.

[0017] In some embodiments of the present application, in the projection of the box top wall, the axis center radius IA is located on the side of the first reference plane M1 away from the first body side wall, and on the side close to the box of the plane passing through the guide central axis I and parallel to the door front wall when the door body is closed.

[0018] In some embodiments of the present application, the radius of the hinge shaft is recorded as r, and the radius of the guide round block is recorded as R, wherein r / R is any value within the range of 0.7-0.8.

[0019] In some embodiments of the present application, the central trajectory line of the positioning slot is recorded as a first trajectory line S, and the distance between one end of the first trajectory line S away from the door side wall and the door front wall is recorded as D0; the distance between one end of the first trajectory line S close to the door side wall and the door front wall is recorded as D1; wherein D0≥D1.

[0020] In some embodiments of this application, the door body includes a rear wall disposed opposite to the front wall of the door, and a door seal is provided on the rear wall of the door; wherein, the edge of the door seal that is close to the side wall of the door and far away from the front wall of the door is denoted as the side sealing edge H;

[0021] The enclosure defines an insulated storage room, which has an access opening that can be closed or opened by the door; the plane containing the access opening is denoted as the second reference plane M2; the plane containing the side wall of the first body is denoted as the reference plane M0; the second reference plane M2 and the reference plane M0 do not move during the opening of the door relative to the enclosure, and are reference planes that remain stationary relative to the enclosure;

[0022] During the process of the door opening from the closed state to G5, the side sealing edge H always moves away from the second reference plane M2 and the reference plane M0;

[0023] The door is opened from G5 to its maximum angle G. max During the process, the side sealing edge H moves away from the second reference plane M2 and closer to the reference plane M0; wherein, G max >G5>90°.

[0024] In some embodiments of this application, during the process of the door opening from the closed state to G5, the movement trajectory of the side sealing edge H is an arc.

[0025] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0026] This invention proposes a refrigerator comprising a cabinet having a first sidewall and a second sidewall disposed opposite to each other, a hinge disposed on the cabinet and close to the first sidewall, and a door having a front wall and a sidewall. The hinge has a guide block and a hinge shaft fixed to the guide block. A guide groove is provided at the end of the door near the hinge, and the guide block is installed in the guide groove and cooperates with the two opposite walls of the guide groove. A curved positioning groove is provided at the bottom of the guide groove, extending from the end away from the sidewall towards the sidewall, with its distance from the front wall first increasing and then decreasing. The hinge shaft cooperates with the positioning groove. When the door is opened from the closed state, the guide block moves relative to the guide groove; the hinge shaft moves relative to the positioning groove, so that the door can move outward a certain distance while rotating. This invention effectively avoids the situation where opening one door of a double-door refrigerator causes the other door to open, thus increasing the opening area of ​​the refrigerator and reducing cold air leakage. Attached Figure Description

[0027] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0028] Figure 1 is a perspective view of the refrigerator of the present application;

[0029] Figure 2 is a top view of the refrigerator of the present application;

[0030] Figure 3 is a partial structural schematic view of Figure 2

[0031] Figure 4 is an exploded structural schematic view of the hinge at the upper right corner of the refrigerator of the present application;

[0032] Figure 5 is an exploded structural schematic view of the hinge at the upper right corner of the refrigerator of the present application from another perspective;

[0033] Figure 6 is a structural schematic view of the hinge at the upper end of the door body of the refrigerator of the present application;

[0034] Figure 7 is a structural schematic view of the hinge at the upper end of the door body of the refrigerator of the present application from another perspective;

[0035] Figure 8 is a view of the hinge when the door body of the refrigerator of the present application is in a closed state;

[0036] Figure 9 is a view of the hinge when the door body of the refrigerator of the present application is opened to G1;

[0037] Figure 10 is a view of the hinge when the door body of the refrigerator of the present application is opened to G2;

[0038] Figure 11 is a view of the hinge when the door body of the refrigerator of the present application is opened to G3;

[0039] Figure 12 is a view of the hinge when the door body of the refrigerator of the present application is opened to G4;

[0040] Figure 13 is a view of the hinge when the door body of the refrigerator of the present application is opened to G5;

[0041] Figure 14 is a view of the hinge when the door body of the refrigerator of the present application is opened to G max >90°; ​

[0042] Figure 15 is the movement of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove in the process of opening the door body of the refrigerator of the present application from the closed state to G max >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0043] Figure 16 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0044] Figure 17 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0045] Figure 18 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0046] Figure 19 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0047] Figure 20 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0048] Figure 21 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure; max >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0049] Figure 22 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0050] Figure 23 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure; max >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0051] Figure 24 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0052] Figure 25 >90°, and the relative position of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door body of the refrigerator of the present application is opened relative to the closed state to G1 is shown in the figure;

[0053] Figure 26is a schematic diagram of the relative positions of the two side sealing strips when the door body of the refrigerator of the present application is initially opened;

[0054] Figure 27 is a comparison diagram of the relative positions of the door body and the cabinet when the door body of the refrigerator of the present application is rotated to G1 and when the door body is only rotated to G1 about the guide center axis;

[0055] Figure 28 is a comparison diagram of the relative positions of the door body and the cabinet when the door body of the refrigerator of the present application is rotated to G2 and when the door body is only rotated to G2 about the guide center axis;

[0056] Figure 29 is a comparison diagram of the relative positions of the door body and the cabinet when the door body of the refrigerator of the present application is rotated to G3 and when the door body is only rotated to G3 about the guide center axis;

[0057] Figure 30 is a comparison diagram of the relative positions of the door body and the cabinet when the door body of the refrigerator of the present application is rotated to G4 and when the door body is only rotated to G4 about the guide center axis;

[0058] Figure 31 is a comparison diagram of the relative positions of the door body and the cabinet when the door body of the refrigerator of the present application is rotated to G5 and when the door body is only rotated to G5 about the guide center axis;

[0059] Figure 32 is a comparison diagram of the relative positions of the door body and the cabinet when the door body of the refrigerator of the present application is rotated to G max and when the door body is only rotated to G max about the guide center axis;

[0060] Figure 33 is a comparison diagram of the movement of the first side edge W and the side sealing edge H during the rotation of the door body of the refrigerator of the present application and during the rotation of the door body about the guide center axis only;

[0061] Figure 34 is a schematic diagram of one structure of the hinge of the refrigerator of the present application;

[0062] Figure 35 is an exploded structural schematic diagram of another structure of the hinge provided on the upper end of the door body of the refrigerator of the present application;

[0063] Figure 36 is an exploded structural schematic diagram of another structure of the hinge provided on the upper end of the door body of the refrigerator of the present application; Figure 35 ; and

[0064] Figure 37 is an exploded structural schematic diagram of one structure of the hinge provided on the lower end of the door body of the refrigerator of the present application;

[0065] Figure 38 is Figure 31 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0066] Figure 39 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0067] Figure 40 is Figure 39 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0068] Figure 41 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0069] Figure 42 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0070] Figure 43 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0071] Figure 44 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0072] Figure 45 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0073] Figure 46 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0074] Figure 47 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0075] Figure 48 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0076] Figure 49 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0077] Figure 50 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0078] Figure 51 is a schematic view of the assembly structure of the hinge provided at the lower end of the door body in the present application;

[0079] Figure 52 is the relative position diagram of the hooking part and the stop part when the door body of the refrigerator of the present application is opened to the maximum angle and the hooking part is separated from the stop part from another perspective;

[0080] Figure 53 is the exploded structural diagram of the mounting block at the lower end of the door body and the door body in another embodiment of the refrigerator of the present application;

[0081] Figure 54 is Figure 53 is another perspective structural diagram of the mounting block in the refrigerator of the present application;

[0082] Figure 55 is Figure 53 is the assembly structural diagram of the mounting block and the door body in the refrigerator of the present application.

[0083] In the above figures: cabinet 10; door body 30; front wall of door 31; side wall of door 32; back wall of door 33; first side edge W; side sealing edge H; hinge plate 40; connecting part 401; extension part 402; door seal 2; side seal 3; hinge shaft 4; guide round block 5; positioning center shaft P; guide center shaft I; positioning groove 6; first trajectory line S; starting positioning point P0; first positioning point P1; second positioning point P2; third positioning point P3; fourth positioning point P4; fifth positioning point P5; sixth positioning point P6; guide groove 7; second trajectory line K; first guide strip 8; second guide strip 9; first guide end point K1; second guide end point K2; starting guide point I0 first guide point I1, second guide point I2, third guide point I3, fourth guide point I4, fifth guide point I5, sixth guide point I6; positioning shaft 60; first through hole 51; second through hole 52; first positioning hole 53; second positioning hole 54; recess 55; first protrusion 34; second protrusion 35; gap groove 36; accommodating groove 37; door end cover 38; stop part 41; hooking gap 42; accommodating cavity 39; locking hook 82; root connecting part 83; hooking part 84; plug-in plate 85; clamping protrusion 371; groove bottom 70; circumferential groove wall 71; slot 72; plate body 81; clamping interface 86. DETAILED DESCRIPTION

[0084] The present application will now be described in detail by way of example with reference to the accompanying drawings. It should be understood, however, that the elements, structures and features in one implementation can be beneficially combined with elements, structures or features of other implementations without further description.

[0085] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0086] The terms "first", "second", "third", "fourth", "fifth" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth" can explicitly or implicitly include one or more of the features.

[0087] In the following, the embodiments of the present application will be described in detail with reference to the accompanying drawings. In the drawings, the side of the refrigerator facing the user when in use is defined as the front side, and the side opposite to it is defined as the back side.

[0088] Figures 1-33 is a schematic view of the opening process of the door body in the present application; referring to Figure 1 The refrigerator includes a cabinet 10 having a storage compartment, a door body 30 connected to the cabinet 10 to open and close the storage compartment, and a refrigeration device for supplying cold air to the storage compartment. The refrigeration device is prior art and will not be described here.

[0089] The cabinet 10 includes an inner container defining a storage compartment, an outer shell connected to the outer side of the inner container to form the appearance of the refrigerator, and a thermal insulation layer provided between the inner container and the outer shell to thermally insulate the storage compartment. The cabinet 10 defines a plurality of storage compartments. In the present embodiment, the plurality of storage compartments includes a refrigeration compartment and a freezer compartment located below the refrigeration compartment.

[0090] The front end of the storage compartment is formed with a taking and placing opening to place food into the storage compartment or take food out of the storage compartment; the cabinet 10 is provided with a rotatable door body 30 to open or close the taking and placing opening of the storage compartment. Specifically, the door body 30 is rotatably connected to the cabinet 10 by hinges located at the upper part and hinges located at the lower part.

[0091] The cabinet 10 comprises a first body side wall and a second body side wall (i.e. the left side wall and the right side wall of the cabinet 10) arranged oppositely; the hinge is arranged on the cabinet 10 and close to the first body side wall; the door body 30 has a door front wall 31 away from the cabinet 10 when the door body 30 is closed, a door side wall 32 close to the hinge and connected with the door front wall 31, and a door back wall 33 close to the cabinet 10 and arranged oppositely to the door front wall 31. For example, when the hinge is located on the right side of the cabinet 10, the right side of the door body 30 is the door side wall 32 when the door body 30 is closed; when the hinge is located on the left side of the cabinet 10, the left side of the door body 30 is the door side wall 32 when the door body 30 is closed.

[0092] The door front wall 31 and the door side wall 32 of the door body 30 intersect to form a first side edge W. It should be noted that when the door front wall 31 and the door side wall 32 are both planes, the intersection line of the two planes is the theoretical first side edge W; in specific processing and arrangement, based on the arrangement of the round corner transition at the intersection of the door front wall 31 and the door side wall 32, a curved surface will be formed; in this application, for the convenience of description, a straight line on the curved surface which extends in the length direction of the door body 30 and is parallel to the theoretical first side edge W represents the first side edge W. In addition, a plane passing through the center of mass of the door body 30 and parallel to the door front wall 31 is referred to as the center of mass plane F; during the opening process of the door body 30, the center of mass plane F moves with the door body 30. In this embodiment, the geometric center of the door body 30 is taken as the center of mass to determine the center of mass plane F for description.

[0093] The door back wall 33 of the door body 30 is provided with a door seal 2; when the door body 30 is closed, the door seal 2 is attached to the front end face of the cabinet surrounding the taking and placing opening, so as to effectively seal the cooperation between the door body 30 and the cabinet 10, thereby ensuring that the door seal 2 seals the taking and placing opening and avoiding cold air overflow. In this embodiment, the door seal 2 comprises a side seal close to the door side wall 32, and the edge of the door seal 2 (side seal) close to the door side wall 32 and away from the door front wall 31 is referred to as a side seal edge H.

[0094] Referring to Figures 2-7 The hinge has a guide round block 5 and a hinge shaft 4 fixed with the guide round block 5 and perpendicular to the guide round block 5. The guide round block 5 is a flat plate with a circular cross section. It should be noted that the circular cross section of the guide round block 5 includes a standard equal-radius circle defined in mathematics, and also includes a non-standard circle which deviates from the standard circle but still has a circular characteristic and can be approximated as a circle due to manufacturing or assembly errors or slight deformation.

[0095] The door body 30 is provided with a guide groove 7 at the end close to the hinge, the extension direction of the guide groove 7 is consistent with the direction from the door front wall 31 to the door back wall 33, that is, the guide groove 7 extends from the door front wall 31 to the door back wall 33. In this embodiment, the guide groove 7 is jointly defined by the first guide strip 8 and the second guide strip 9 arranged in parallel; the area between the first guide strip 8 and the second guide strip 9 is provided with a positioning groove 6; that is, the positioning groove 6 is located at the groove bottom of the guide groove 7. The positioning groove 6 is arranged in the direction from the first guide strip 8 to the second guide strip 9. In addition, the first guide strip 8 and the second guide strip 9 both extend in the direction from the door front wall 31 to the door back wall 33, and the first guide strip 8 is located on the side of the second guide strip 9 away from the door side wall 32. In this embodiment, the first guide strip 8 and the second guide strip 9 are parallel to the door side wall 32.

[0096] It should be noted that the guide groove 7 is not limited to the form defined by the first guide strip 8 and the second guide strip 9, and the guide groove 7 can be directly formed in a recessed manner at the end of the door body, the guide round block 5 cooperates with the two opposite groove walls (the two side walls parallel to the door side wall 32) of the guide groove 7, and the positioning groove 6 is formed on the groove bottom of the guide groove 7.

[0097] The hinge shaft 4 is adapted to the positioning groove 6, and the guide round block 5 is adapted to the guide groove 7; in this embodiment, the guide round block 5 always gap fits the two opposite groove walls of the guide groove 7. The gap of the gap fit can be set in the range of 0-0.3mm; that is, it includes the principle contact fit, and also includes the small gap due to product manufacturing and processing. As a settable way, the diameter of the guide round block 5 is a, and the width of the guide groove 7 is equal to the diameter of the guide round block 5; that is, the width of the guide groove 7 (the distance between the first guide strip 8 and the second guide strip 9) is a. When the guide round block 5 moves relative to the guide groove 7, the guide round block 5 is always tangent to the first guide strip 8 and the second guide strip 9. In the process of rotating the door body 30 to open or close, the hinge shaft 4 moves relative to the positioning groove 6, and the guide round block 5 moves relative to the guide groove 7.

[0098] Here, it should be noted that the above-mentioned hinge shaft 4 and guide round block 5 are arranged on the hinge, and the positioning groove 6 and the guide groove 7 are arranged on the door body 30 as an example for illustration.

[0099] The hinge includes a hinge plate 40 fixedly connected to the cabinet 10, and the hinge plate 40 includes a connecting portion 401 connected to the cabinet 10, and an extension portion 402 extending forward from the connecting portion 401 and having a horizontal plate shape. The connecting portion 401 can be fastened to the top wall of the cabinet 10 by fasteners such as screws, pins, and bolts.

[0100] Specifically, for the hinge at the upper end of the door body 30, the hinge plate 40 is connected to the top wall of the cabinet 10, and the hinge shaft 4 and the guide round block 5 are located on the hinge plate 40. The hinge plate 40, the hinge shaft 4 and the guide round block 5 can be integrally formed; however, unlike this, the hinge plate 40, the hinge shaft 4 and the guide round block 5 can be separately provided and assembled with each other. The hinge shaft 4 and the guide round block 5 are formed on the extension part 402, and the hinge shaft 4 extends vertically downward.

[0101] For the hinge at the lower end of the door body 30, the connecting part 401 is connected to the front end face of the cabinet 10, and the extension part 402 extends to the side away from the front end face of the cabinet 10. The hinge shaft 4 and the guide round block 5 are on the extension part 402, and the hinge shaft 4 extends upward.

[0102] Corresponding to the position of the hinge plate 40, the upper and lower ends of the door body 30 are each provided with a positioning groove 6 and a guide groove 7. The positions of the two positioning grooves 6 at the upper and lower ends of the door body 30 correspond to each other in the vertical direction, and the positions of the two guide grooves 7 correspond to each other in the vertical direction. So that the hinge provided at the upper end of the door body 30 and the hinge provided at the lower end of the door body 30 move synchronously.

[0103] In the embodiment, as shown in Figures 2-7 , referring to Figure 8 , the plane on which the side (first body side wall) of the cabinet 10 close to the hinge plate 40 is located is defined as the reference plane M0, and the side of the reference plane M0 away from the storage chamber is recorded as the outer side, and the side close to the storage chamber is recorded as the inner side.

[0104] The refrigerator comprises two oppositely arranged door bodies 30, and the two oppositely arranged door bodies 30 jointly cooperate to open or close the taking and placing opening. Any one of the two door bodies 30 is provided with a side sealing strip 3 away from the door side wall 32 thereof; wherein, when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 sealingly cooperates with the side sealing strip 3 on the other one; that is, when the two door bodies 30 are closed, the two side sealing strips 3 are extruded in the gap between the two door bodies 30, so as to effectively close the space between the two door bodies 30 and the cabinet, so as to prevent the cold air from overflowing. When the refrigerator is provided with a conventional hinge (a hinge that is simply rotated to open), when one of the door bodies 30 is opened, due to the fact that the two side sealing strips 3 are tightly extruded in the closed state, the opened door body 30 will drive the other door body 30 to open in the opening process, which leads to the increase of the opening area of the taking and placing opening, the increase of the cold air overflow amount, the increase of the power consumption, and the increase of the temperature in the storage chamber, which affects the preservation of food. Therefore, in the present application, the hinge and the door body 30 cooperate to form a variable track mechanism, so that the opened door body 30 moves outward in the opening process, thereby avoiding the driving of the other door body 30 to be opened.

[0105] In this embodiment, the positioning groove 6 is a curved groove; along the direction from the end away from the door sidewall 32 to the end closer to the door sidewall 32, the distance between the positioning groove 6 and the front wall 31 of the door first increases and then decreases. In this embodiment, the positioning groove 6 is a smooth curve. Figure 3 As shown, in the projection of the top wall of the box 10, the projection line of the front wall 31 of the door is denoted as the x-axis, the projection line of the inner wall of the guide groove 7 away from the side wall 32 of the door (the first guide bar 8) is denoted as the y-axis, and the intersection of the x-axis and the y-axis is denoted as the origin O (0, 0); where the x-axis is positive in the direction from the first guide bar 8 to the second guide bar 9; the y-axis is positive in the direction from the front wall 31 of the door to the rear wall 33 of the door.

[0106] The center trajectory line of the positioning groove 6 is denoted as the first trajectory line S; the center first trajectory line S is denoted as the function f(x) in this coordinate system, and f(x) is located in the first quadrant of the xOy coordinate system; as a settable mode, as x increases, f(x) first increases and then decreases. That is, f(x) has only one extreme point. In this embodiment, f(x) is an upwardly convex function.

[0107] As an optional feature, the positioning groove 6 includes a first groove segment away from the door sidewall 32 and a second groove segment close to the door sidewall 32. Along the direction from the end away from the door sidewall 32 to the end close to the door sidewall 32, the distance between the first groove segment and the front wall 31 gradually increases, while the distance between the second groove segment and the front wall 31 gradually decreases. The first groove segment and the second groove segment are connected by a smooth transition. The center trajectory lines corresponding to the first groove segment and the second groove segment are respectively denoted as the first trajectory segment and the second trajectory segment; the smooth transition between the first trajectory segment and the second trajectory segment forms the first trajectory line S.

[0108] It can be configured that both the first and second groove segments are arc-shaped grooves. That is, both the first and second track segments are arc-shaped. As an optional configuration, the first and second track segments are tangent; that is, the first and second groove segments are tangent to form a smooth positioning groove 6.

[0109] As another configurable method, a transition groove segment is set to connect the first groove segment and the second groove segment; the first groove segment, the transition groove segment, and the second groove segment are smoothly connected; wherein, the center trajectory line of the transition groove segment is denoted as the transition trajectory segment; it can be configured that the first trajectory segment, the transition trajectory segment, and the second trajectory segment are tangent; that is, the first groove segment and the second groove segment are both tangent to the transition groove segment to form a smooth positioning groove 6.

[0110] The first trajectory line S is a curve, which is defined by the shape of the curved positioning groove 6. The first trajectory line S extends from a side away from the door side wall 32 to a side close to the door side wall 32, and the distance between the first trajectory line S and the door front wall 31 first increases and then decreases. In addition, in the embodiment, the guide groove 7 is linear, that is, the guide groove 7 is composed of a linear groove. The center line of the extension direction of the guide groove 7 is denoted as a second trajectory line K. Since the guide groove 7 is always tangent to the guide round block 5, the guide center axis I of the guide round block 5 always moves along the second trajectory line K. It should be noted that the expressions in the embodiment are standard theoretical settings, which include structural settings that deviate from the standard theoretical settings but still have the characteristics due to manufacturing or assembly errors or slight deformation.

[0111] In the embodiment, the hinge shaft 4 cooperates with the positioning groove 6, and the guide round block 5 cooperates with the guide groove 7, so that the door body 30 can move outward (away from the second body side wall) while rotating, to avoid interference between the side sealing strips 3 installed on the two opposite door bodies 30 when the door body 30 is opened, effectively avoiding the increase of cold loss when only one of the two door bodies 30 is opened. As another setting, the door body 30 moves forward (away from the cabinet) while opening and moving outward, to avoid pressing the door sealing strip 2 when the door body 30 is opened, preventing the door body 30 from interfering with the cabinet 10 and affecting the opening of the door body 30.

[0112] Since the positioning groove 6 and the hinge shaft 4 are in a relative motion relationship, and the guide groove 7 and the guide round block 5 are in a relative motion relationship, if the door body 30 is in the process of opening, and the positioning groove 6 and the guide groove 7 are taken as the static reference, it is equivalent to that the hinge shaft 4 moves in the positioning groove 6, and the guide round block 5 moves in the guide groove 7. In order to facilitate description, the positioning groove 6 and the guide groove 7 are taken as the reference, and the hinge shaft 4 and the guide round block 5 move relative to the reference.

[0113] In addition, in the embodiment, the center axis of the hinge shaft 4 is denoted as a positioning center axis P, and the center axis of the guide circular block 5 passing through the center of the cross section thereof is denoted as a guide center axis I; the radius of the circular cross section of the guide circular block 5 passing through the positioning center axis P is denoted as IA; wherein A is the intersection point of the boundary of the circular cross section of the guide circular block 5 and the radius of the cross section of the guide circular block 5 passing through the positioning center axis P. That is, I, P and A are on the same straight line and on the radius IA of the circular cross section of the guide circular block 5. In the embodiment, in the projection of the top wall of the cabinet 10, the length of the line segment IP is greater than that of the line segment AP, effectively increasing the limiting effect of the hinge shaft 4 and the guide circular block 5 on the door body 30 and increasing the connection stability of the door body 30 and the cabinet 10; wherein the line segment IP is denoted as an axis center line segment IP, the radius IA is denoted as an axis center radius IA, and A is denoted as an axis center radius point A. As a settable manner, IP / AP is any value between 2 and 3.

[0114] As an implementable manner, the plane passing through the guide center axis I and parallel to the reference plane M0 is denoted as a first reference plane M1; in the projection of the top wall of the cabinet 10, the axis center radius IA is located on the side of the first reference plane M1 away from the reference plane M0 and on the side of the plane passing through the guide center axis I and parallel to the front door wall 31 of the door body when the door body is closed close to the cabinet 10; that is, the distance between IA and the first reference plane M1 monotonously increases as I points to A. In the embodiment, the positioning center axis P is located on the side of the guide center axis I close to the taking and placing opening, increasing the limiting effect of the hinge shaft 4 and the guide circular block 5 on the door body 30 and increasing the connection stability of the door body 30 and the cabinet 10. In addition, in the embodiment, the positioning center axis P is located on the side of the guide center axis I close to the taking and placing opening and away from the first body side wall. The above setting effectively increases the angle range of the door body 30 moving outward during rotation, so that the door body 30 can maintain the trend of moving outward in a large angle range during rotation, which can avoid the interference between the side sealing strips 3 installed on the two opposite door bodies 30 and reduce the cold loss; on the other hand, it can reduce the transverse shielding of the door body 2 provided on the rear door wall 33 to the taking and placing opening, so as to increase the transverse size of the drawer installed in the storage compartment and increase the space utilization rate of the storage compartment; in addition, the hinge shaft 4 matched with the positioning groove 6 is located on the side of the guide center axis I close to the taking and placing opening and away from the first body side wall, and the hinge shaft 4 is matched with the guide circular block 5 to enhance the connection firmness of the door body 30 close to the cabinet 10, effectively enhancing the connection firmness of the door body and increasing the stability of the door body 30 opening, reducing shaking and improving the user experience.

[0115] In some embodiments of the application, in the projection of the top wall of the cabinet 10, the included angle between the axis center radius IA and the first reference plane M1 is denoted as a first included angle θ, and the first included angle θ is any value between 25° and 35°; as a settable manner, in the embodiment, θ = 30°.

[0116] In some embodiments of the present application, the radius of the hinge shaft 4 is denoted as r, and the radius of the guide circular block 5 is denoted as R; wherein r / R is any value between 0.7 and 0.8; the above radius settings are to reasonably utilize the thickness space of the door body 30 to arrange the positioning groove 6 and the guide groove so as to achieve the purpose of opening the door body 30 to the maximum angle; on the other hand, the strength of the hinge shaft 4 and the guide circular block 5 is ensured; in addition, the hinge shaft 4 cooperates with the positioning groove 6, and the guide circular block 5 cooperates with the guide groove 7, thereby increasing the stability of the opening of the door body 30.

[0117] As shown in Figures 8-23 , the movement of the hinge shaft 4 along the positioning groove 6 is equivalent to the movement of the positioning center axis P along the first trajectory line S. In the present embodiment, the hinge plate 40 is fixedly connected with the guide circular block 5, and the movement of the guide circular block 5 relative to the guide groove 7 is equivalent to the movement of the hinge plate 40 relative to the guide groove 7, and is also equivalent to the movement of the cabinet 10 relative to the door body 30. Wherein, the movement of the door body 30 relative to the cabinet 10 is equivalent to the relative movement of the two in the plane in which the top wall of the cabinet 10 is located (or in the plane parallel to the top wall of the cabinet 10); that is, the movement of the door body 30 relative to the cabinet 10 can be concluded as the relative movement in a two-dimensional plane. In the plane in which the top wall of the cabinet 10 is located, the movement of the axis center line segment IP relative to the guide groove 7 is equivalent to the movement of the axis center line segment IP relative to the second trajectory line K, and is also equivalent to the movement of the guide circular block 5 relative to the guide groove 7, and is also equivalent to the movement of the cabinet 10 relative to the door body 30.

[0118] In the following description, for the convenience of explanation, the movement of the hinge shaft 4 along the positioning groove 6 is selected to represent the movement of the positioning center axis P along the first trajectory line S, and the movement of the axis center line segment IP relative to the second trajectory line K represents the movement of the guide circular block 5 relative to the guide groove 7; that is, the movement of the cabinet 10 (hinge plate 40) relative to the door body 30 is represented by the movement of the axis center line segment IP relative to the second trajectory line K. Wherein, the second trajectory line K includes a first guide end point K1 close to the door front wall 31 and a second guide end point K2 close to the door rear wall 33; the second trajectory line K extends from the first guide end point K1 to the second guide end point K2 along a straight line. In some embodiments of the present application, the second trajectory line K is perpendicular to the door front wall 31, so as to increase the efficiency of the outward and forward movement of the door body 30 relative to the cabinet 10.

[0119] As shown in Figures 8-23 , the first trajectory line S includes a starting positioning point P0 away from the door side wall 32 and a sixth positioning point P6 close to the door side wall 32; the first trajectory line S extends from the starting positioning point P0 to the sixth positioning point P6 close to the door side wall 32 along a curve, and the distance between the first trajectory line S and the door front wall 31 first increases and then decreases.

[0120] In the embodiment, the first trajectory line S is closer to the back wall 33 than the front wall 31. When the user opens the door body 30, the external force applied to the door body 30 mainly acts on the side of the door body 30 close to the front wall 31 and away from the side wall 32. In the embodiment, the positioning groove 6 is close to the back wall 33 relative to the front wall 31, so that the door body 30 is positioned by the hinge shaft 4 when the door body 30 is close to the back wall 33 and close to the side wall 32 during opening, effectively improving the balance of force, making the mechanical stability of the opening of the door body 30 good, and ensuring the smoothness and stability of the movement of the door body 30; at the same time, the strength of the door body 30 and the positioning groove 6 is also ensured. In the embodiment, the distance between the starting positioning point P0 and the front wall 31 is denoted as D0, the distance between the sixth positioning point P6 and the front wall 31 is denoted as D1, and the distance between the sixth positioning point P6 and the back wall 33 is denoted as D2. Among them, D0≥D1>D2; that is, D2:D1∈[1 / 2, 1) can be set. The above setting can make the force more balanced, match the user's usage habit, and enhance the stability and smoothness of the opening of the door body 30. In the projection of the top wall of the cabinet 10, the middle plane between the front wall 31 and the back wall 33 is denoted as the middle plane (in the embodiment, the middle plane is the same as the center of mass plane F), the distance between the middle plane and the front wall 31 is equal to the distance between the middle plane and the back wall 33; the positioning groove 6 is located between the middle plane and the back wall 33. In the embodiment, 14mm≤D2≤18mm, and in the current example, D2=16mm and D1=32mm. The thickness of the door body 30 is between 45mm and 55mm.

[0121] In the embodiment, the positioning groove 6 is curved and protrudes towards the back wall 33; the center line (the second trajectory line K) of the guide groove 7 in the extension direction is parallel to the side wall 32, so that when the hinge shaft 4 drives the guide block 5 to move relative to the positioning groove, a significant displacement in the inside-outside direction (transverse direction / refrigerator width direction) is generated, and the door body 30 moves outward. Specifically, in the embodiment, the front wall 31 is perpendicular to the side wall 32; the first guide strip 8 and the second guide strip 9 are both perpendicular to the front wall 31, that is, the second trajectory line K is perpendicular to the front wall 31. In the embodiment, the second trajectory line K is perpendicular to the front wall 31 and parallel to the side wall 32. The first trajectory line S extends from the starting positioning point P0 to the sixth positioning point P6 along the curve protruding towards the back wall 33. The above setting effectively utilizes the thickness of the door body 30, on the one hand, makes the rotation and movement of the guide block 5 relative to the guide groove 7 more smooth, and on the other hand, makes the door body 30 move outward and forward during the rotation and opening process.

[0122] The positioning groove 6 effectively limits the movement of the hinge shaft 4, and the guide groove 7 effectively limits the movement of the guide round block 5, so that the guide round block 5 cooperates with the hinge shaft 4 to move in the guide groove 7, thereby moving the door body 30 outward and forward by a certain distance during the opening of the door body 30, and ensuring the stability and smoothness of the rotation opening of the door body 30.

[0123] In some embodiments of the present application, the two endpoints of the positioning groove 6 are located near the centroid plane F; the distance between the two endpoints of the positioning groove 6 and the centroid plane F can be less than 1 cm; so as to effectively support the door body 30 in the closed state and the state of being opened to the maximum angle, and improve the stability of the door body 30 in the state.

[0124] As shown in Figure 8 , in some embodiments of the present application, when the door body 30 is in the closed state, the positioning center axis P is located at the starting positioning point P0 of the first trajectory line S, and the guide round block 5 cooperates with the first guide strip 8 and the second guide strip 9 at the same time. It should be noted that in the entire opening process of the door body 30, the guide round block 5 always cooperates with the first guide strip 8 and the second guide strip 9 at the same time; in the projection of the plane in which the top wall of the cabinet 10 is located,

[0125] In this embodiment, the maximum opening angle G max of the refrigerator is taken as an example for description. The door body 30 is opened from the closed state to the maximum opening angle G max During the process of opening the door body 30 to the maximum opening angle G max , when the door body 30 is rotated and opened to a certain angle, the relative positions of the hinge shaft 4 to the positioning groove 6 and the guide round block 5 to the guide groove 7 are as follows:

[0126] Among them, θ represents the opening angle of the door body 30, and the opening angle of the door body 30 in the closed state is 0°.

[0127] As shown in Figure 8 , when the door body 30 is in the closed state, the positioning center axis P is located at the starting positioning point P0 of the first trajectory line S away from the door side wall 32, and the guide round block 5 cooperates with the first guide strip 8 and the second guide strip 9 at the same time. Combined with Figure 16 , , the guide center axis I of the guide round block 5, the positioning center point P, and the axis center radius point A are sequentially located at I0, P0, and A0 in the guide groove 7. Among them, I0 is located on the second trajectory line K.

[0128] As shown in Figures 9-11 , when the door body 30 is in the closed state, the positioning center axis P is located at the starting positioning point P0 of the first trajectory line S away from the door side wall 32, and the guide round block 5 cooperates with the first guide strip 8 and the second guide strip 9 at the same time. Combined with When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S.

[0129] When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. Figure 9 When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. Figure 10 When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S.

[0130] When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. Figure 9 When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. Figure 16 , When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S.

[0131] When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. Figure 10 When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. Figure 17 , When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S.

[0132] When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. Figure 11 When the door body 30 is rotated from the closed state to G3 (not including the end value), the guiding circular block 5 is matched with the first guiding strip 8 and the second guiding strip 9 at the same time; the positioning central axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S. When the door body 30 is opened to G3, the positioning center axis P is located at the third positioning point P3 of the first trajectory line S, and the third positioning point P3 is located on the side of the second positioning point P2 close to the door side wall 32 and away from the door front wall 31; the guide circular block 5 is matched with the first guide strip 8 and the second guide strip 9 at the same time. In this embodiment, the third positioning point P3 is the point with the smallest distance between the first trajectory line S and the door rear wall 33. That is, in the xOy coordinate system, the third positioning point P3 is the extreme point of f(x). In combination with Figure 18 , When the door body 30 is opened to G3, the positioning center axis P is located at the third positioning point P3 of the first trajectory line S, and the third positioning point P3 is located on the side of the second positioning point P2 close to the door side wall 32 and away from the door front wall 31; the guide circular block 5 is matched with the first guide strip 8 and the second guide strip 9 at the same time. In this embodiment, the third positioning point P3 is the point with the smallest distance between the first trajectory line S and the door rear wall 33. That is, in the xOy coordinate system, the third positioning point P3 is the extreme point of f(x). In combination with Figure 15 , I0, I1, I2 and I3 are all located on the second trajectory line K and arranged in sequence along the direction from the door front wall 31 to the door rear wall 33. In this embodiment, as shown in Figure 11 , G3 ∈ [48°, 52°] any value; that is, when the door body 30 is opened to about 50°, the positioning center point P moves to the third positioning point P3 of the first trajectory line S closest to the door rear wall 33.

[0133] As shown in Figures 11-12 , when the door body 30 is opened to G3, the guide center axis I of the guide circular block 5, the positioning center point P and the axis center radius point A are sequentially located at I3, P3 and A3 in the guide groove 7. Among them, I3 is located on the second trajectory line K and on the side of I2 away from the door front wall 31; that is, I3 is located on the side of I2 close to K2. In combination with , when the door body 30 is opened to G3, the guide center axis I of the guide circular block 5, the positioning center point P and the axis center radius point A are sequentially located at I3, P3 and A3 in the guide groove 7. Among them, I3 is located on the second trajectory line K and on the side of I2 away from the door front wall 31; that is, I3 is located on the side of I2 close to K2. In combination with

[0134] At this time, the opening angle of the door body 30 is , the matching relationship between the guide circular block 5 and the guide groove 7 in this opening angle interval is the same, the first guide strip 8 and the second guide strip 9 are always matched with the guide circular block 5; the movement trend of the positioning center axis P relative to the first trajectory line S is the same. The difference lies in that the opening angle is different, the point matched by the guide circular block 5 and the guide groove 7 is different, and the position of the positioning center axis relative to the first trajectory line S is different. In this way, when the opening angle , any one of the opening angles can represent the relative position of the guide circular block 5 and the guide groove 7, the hinge shaft 4 and the positioning groove 6 when the door body 30 is opened to the corresponding interval; specifically, as shown in Figure 12 , the state diagram when the door body 30 is opened to G3.

[0135] ​When the door body 30 is opened at G4, the positioning center axis P is located at the fourth positioning point P4 of the first trajectory line S, the fourth positioning point P4 is located between the third positioning point P3 and the sixth positioning point P6, and the fourth positioning point P4 is located on the side of the third positioning point P3 close to the door side wall 32 and the door front wall 31; in combination with Figure 19 , , the guiding center axis I of the guide circular block 5, the positioning center point P, and the axis center radius point A are sequentially located at I4, P4, and A4 in the guide groove 7. Among them, I4 is located on the second trajectory line K and is located on the side of I3 away from the door front wall 31; that is, I4 is located on the side of I3 close to K2. As an implementable manner, G4=90°;

[0136] As shown in Figures 12-14 , , the door body 30 is rotated and opened from G4 (G4=90°) to G max (>90°); in the above opening process, the guide circular block 5 is simultaneously matched with the first guide strip 8 and the second guide strip 9; the positioning center axis P moves along the first trajectory line S to the direction close to the door side wall 32 and the door front wall 31.

[0137] The above, as shown in Figures 12-14 , the door body 30 is opened at an angle , the matching relationship between the guide circular block 5 and the guide groove 7 in this opening angle interval is the same, the first guide strip 8 and the second guide strip 9 are always matched with the guide circular block 5; the movement trend of the positioning center axis P relative to the first trajectory line S is the same. The difference lies in that the opening angle is different, the point matched by the guide circular block 5 and the guide groove 7 is different, and the position of the positioning center axis relative to the first trajectory line S is different. In this way, when the opening angle satisfies (G4, G max ), any one of the opening angles can represent the relative positions of the guide circular block 5 and the guide groove 7, the hinge shaft 4 and the positioning groove 6 when the door body 30 is opened to the corresponding interval (G4, G max ); specifically, as shown in the state diagram of Figure 13 , , the state diagram can represent the matching state in this interval. As shown in

[0138] , when the door body 30 is opened at G5 (G max >G5>G4=90°), the positioning center axis P is located at the fifth positioning point P5 of the first trajectory line S, and the fifth positioning point P5 is located on the side of the fourth positioning point P4 close to the door front wall 31 and the door side wall 32. In combination with Figure 13 , Figure 20 , the guiding center axis I of the guide circular block 5, the positioning center point P, and the axis center radius point A are sequentially located at I5, P5, and A5 in the guide groove 7. Among them, I5 is located on the second trajectory line K and is located on the side of I4 close to the door front wall 31; that is, I5 is located on the side of I4 close to K2. As an implementable manner, G5=120°; At this time, the guide center axis I, the positioning center point P, and the axis radius point A of the guide block 5 are located at I5, P5, and A5 respectively in the guide groove 7. Among them, I5 is located on the second trajectory line K and is located on the side of I4 away from the front wall 31; that is, I5 is located on the side of I4 closer to K2. It can be set that G5∈[100°, 105°].

[0139] like Figure 14 As shown, door 30 opens G max Time (G) max >90°), the positioning center axis P is located at the sixth positioning point P6 of the first trajectory line S, and the sixth positioning point P6 is located on the side of the fifth positioning point P5 away from the sixth positioning point P6; at this time, the hinge axis 4 is located at the end of the positioning groove near the door side wall 32, that is, the positioning center axis P is located at the end of the first trajectory line S near the door side wall 32. Combined with Figure 21 , At this time, the guide center axis I, positioning center point P, and axis radius point A of the guide block 5 are located at I6, P6, and A6 respectively within the guide groove 7. Specifically, I6 is located on the second trajectory line K and on the side of I5 furthest from the front wall 31; that is, I6 is located on the side of I5 closest to K2. As a configurable method, G... max ∈[112°, 120°]. In this embodiment,

[0140] Among them, 0° < G1 < G2 < G3 < G4 < G5 < G max The initial positioning point P0, the first positioning point P1, the second positioning point P2, the third positioning point P3, the fourth positioning point P4, the fifth positioning point P5, and the sixth positioning point P6 are sequentially distributed along the first trajectory line S towards the side wall 32 of the door. In this embodiment, the opening angles of the door 30 are sequentially denoted as the first angle G1, the second angle G2, the third angle G3, the fourth angle G4, the fifth angle G5, and the maximum angle G6. max .

[0141] Door 30 opens from the closed state to its maximum angle G max During the process, the hinge shaft 4 moves relative to the positioning groove 6 towards the door side wall 32, and the guide block 5 moves relative to the guide groove 7 away from the front wall 31.

[0142] As can be seen from the above, during the entire opening process of the door 30, the two opposite groove walls of the guide groove 7 cooperate with the guide block 5. From the perspective of the movement trend of the hinge shaft 4 relative to the positioning groove 6, At this time, the hinge shaft 4 is located at the end of the positioning groove 6 away from the door side wall 32; At this time, the hinge axis 4 moves to the position where the positioning groove 6 is closest to the rear wall 33 of the door. At this time, the hinge shaft 4 moves to the end of the positioning groove 6 near the door side wall 32. That is, from the angle of the movement trend of the hinge shaft 4 relative to the positioning groove 6, Open door 30 from the closed state to G. max The process is divided into two stages. The following explanation of these two stages focuses on the movement trend of the hinge shaft 4 relative to the positioning groove 6:

[0143] The first stage, combined with Figures 16-18 ,like Figure 22 As shown, the process of the door 30 rotating from the closed state to G3 (<90°) is illustrated.

[0144] In this first stage, the door 30 opens sequentially from 0° through G1 and G2 to G3. During this process, the positioning center axis P moves from the starting positioning point P0 along the first trajectory line S towards the door side wall 32 and the door rear wall 33; specifically, the positioning center axis P moves from the starting positioning point P0 along the first trajectory line S, passing through the first positioning point P1 and the second positioning point P2, towards the door side wall 32 and the door rear wall 33 to the third positioning point P3; the guide center axis I of the guide block 5 moves relative to the guide groove 7 from the starting guide point I0 along the second trajectory line K towards the second guide endpoint K2 (near the door rear wall 33); specifically, the guide center axis I moves from the starting guide point I0 along the second trajectory line K, passing through the first guide point I1 and the second guide point I2, towards the door rear wall 33 to the third guide point I3.

[0145] In this application, the side of the refrigerator facing the user when in use is defined as the front side, and the opposite side is defined as the rear side; the side of the reference plane M0 away from the inner cavity of the storage room is defined as the outer side, and the opposite side closer to the storage room is defined as the inner side; this definition of the direction of use by the user is used as the reference for explanation.

[0146] During the first stage of opening (0°~G3) of the door 30, the second trajectory line K is parallel to the door side wall 32. As the door 30 rotates counterclockwise relative to the housing 10, the second trajectory line K also rotates counterclockwise during this first stage of opening. During this first stage, the second trajectory line K begins to rotate counterclockwise from a state parallel to the reference plane M0. The angle between the second trajectory line K and the plane containing the retrieval opening gradually decreases, while the angle between it and the reference plane M0 gradually increases. That is, during this first stage of opening, relative to the housing 10, in the direction from the rear door wall 33 to the front door wall 31, the second trajectory line K extends away from the second side wall and away from the retrieval opening. In other words, during this first stage of opening, in the direction from the rear door wall 33 to the front door wall 31 (from the second guide endpoint K2 to the first guide endpoint K1), the second trajectory line K always extends outward and forward. That is, during the process of the door 30 opening from the closed state to G3, the second trajectory line K extends inward and backward along the direction from the first guide endpoint K1 to the second guide endpoint K2.

[0147] During the opening process in the first stage described above, taking the positioning groove 6 and guide groove 7 as references, when the door 30 opens from 0° to G3, the axis segment IP rotates clockwise from I0P0 and moves inward and backward sequentially to I1P1, I2P2, and I3P3 (I0P0→I1P1→I2P2→I3P3). Since the positioning groove 6 and guide groove 7 are set on the door 30, and the axis segment IP represents the movement of the guide block 5 set on the housing 10, it can be concluded that: taking the door 30 as a reference, during the entire process of opening the door 30 from the closed state to G3, the housing 10 (i.e., the guide block 5) maintains a clockwise rotation relative to the door 30 and moves towards the second guide endpoint K2 along the second trajectory line K; that is, the housing 10 maintains a clockwise and inward and backward tendency relative to the door 30.

[0148] Based on the relativity of motion, taking the housing 10 as a reference (i.e., the guide block 5 as a reference), during the entire process of opening the door 30 from the closed state to G3, the door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise relative to the housing 10 and moves towards the first guide endpoint K1; that is, the door 30 maintains a counterclockwise rotation relative to the housing 10 and a tendency to move outward and forward. In other words, during the entire process of opening the door 30 from the closed state to G3, the door 30 moves outward and forward a certain distance relative to the housing 10, thereby preventing the opened door 30 from causing another door 30 to open and resulting in heat loss.

[0149] The second stage, such as Figure 23 As shown, door 30 is rotated open from G3 to G... max (G max During the process of >90°.

[0150] In the second stage, the door body 30 is opened by G3 through G4, G5 to G max In the process, the positioning center axis P is moved by the third positioning point P3 along the first trajectory line S to the direction close to the door side wall 32 and the door front wall 31. Specifically, the positioning center axis P is moved by the third positioning point P3 along the first trajectory line S to the direction close to the door side wall and the door front wall 31 through the fourth positioning point P4, the fifth positioning point P5 to the sixth positioning point P6 in sequence.

[0151] In the opening process of the second stage, when the door body 30 is rotated and opened from G3 to G4 (G4=90°), the movement trend of the second trajectory line K is consistent with that in the first stage (not described here). That is, before the door body 30 is rotated and opened from G3 to G4 (G4=90°), the second trajectory line K always extends outward and forward relative to the cabinet 10 in the direction from the second guide end point K2 to the first guide end point K1. That is, in the process that the door body 30 is opened from the closed state to G3, the second trajectory line K extends inward and backward in the direction from the first guide end point K1 to the second guide end point K2.

[0152] When the door body 30 is opened to 90°, the second trajectory line K is parallel to the plane where the taking and placing opening is located, and perpendicular to the reference plane M0; that is, the second trajectory line K extends from outside to inside relative to the cabinet 10 in the direction from the first guide end point K1 to the second guide end point K2.

[0153] When the door body 30 is rotated and opened from G4 (G4=90°) to G max , the second trajectory line K starts to rotate counterclockwise from the state perpendicular to the reference plane M0, the angle between the second trajectory line K and the plane where the taking and placing opening is located gradually increases, and the angle between the second trajectory line K and the reference plane M0 gradually decreases; that is, in the process that the door body 30 is rotated and opened from G4 (G4=90°) to G max , the second trajectory line K always extends outward and backward relative to the cabinet 10 in the direction from the door rear wall 33 to the door front wall 31 (the direction from the second guide end point K2 to the first guide end point K1). That is, in the process that the door body 30 is rotated and opened from G4 (G4=90°) to G max , the second trajectory line K extends inward and forward in the direction from the first guide end point K1 to the second guide end point K2.

[0154] In the opening process of the second stage, the positioning groove 6 and the guide groove 7 are taken as reference objects for analysis;

[0155] (1) As Figure 19As shown, when the door body 30 is opened from G3 to G4, the shaft center line segment IP rotates clockwise from I3P3 and moves inwardly and backwardly to I4P4 in sequence (I3P3→I4P4). In this process, the second trajectory line K extends inwardly and backwardly along the direction from the first guide end point K1 to the second guide end point K2. In addition, since the positioning groove 6 and the guide groove 7 are arranged on the door body 30, the shaft center line segment IP represents the movement of the guide round block 5 arranged on the box body 10. Therefore, it is concluded that, with the door body 30 as the reference, during the whole process of opening the door body 30 from G3 to G4, the box body 10 (i.e. the guide round block 5) keeps rotating clockwise relative to the door body 30 and moves along the second trajectory line K to the direction close to the second guide end point K2. Specifically, the guide center axis I moves from the third guide point I3 to the fourth guide point I4 along the second trajectory line K to the direction close to the door rear wall 33. That is, the box body 10 keeps the trend of rotating clockwise and moving inwardly and backwardly relative to the door body 30.

[0156] According to the relativity of motion, with the box body 10 as the reference (i.e. with the guide round block 5 as the reference), during the whole process of opening the door body 30 from G3 to G4, the door body 30 (i.e. the positioning groove 6 and the guide groove 7) keeps rotating counterclockwise relative to the box body 10 and moves to the direction close to the first guide end point K1. That is, the door body 30 keeps the trend of rotating counterclockwise and moving outwardly and forwardly relative to the box body 10. That is, during the whole process of opening the door body 30 from the closed state to G3, the door body 30 moves outwardly and forwardly relative to the box body 10 by a certain distance.

[0157] (2) As shown in Figures 19-21 , referring to Figure 15 and Figure 23 , when the door body 30 is opened from G4 to G max , the shaft center line segment IP rotates clockwise from I4P4 and moves inwardly and forwardly to I6P6 in sequence (I4P4→I5P5→I6P6). In this process, the second trajectory line K extends inwardly and forwardly along the direction from the first guide end point K1 to the second guide end point K2. In addition, since the positioning groove 6 and the guide groove 7 are arranged on the door body 30, the shaft center line segment IP represents the movement of the guide round block 5 arranged on the box body 10. Therefore, it is concluded that, with the door body 30 as the reference, during the whole process of opening the door body 30 from G4 to G max , the box body 10 (i.e. the guide round block 5) keeps rotating clockwise relative to the door body 30 and moves along the second trajectory line K to the direction close to the second guide end point K2. Specifically, the guide center axis I moves from the fourth guide point I4 to the sixth guide point I6 along the second trajectory line K to the direction close to the door rear wall 33 via the fifth guide point I5. That is, the box body 10 keeps the trend of rotating clockwise and moving inwardly and forwardly relative to the door body 30.

[0158] According to the relativity of motion, with the box body 10 as the reference (i.e. with the guide round block 5 as the reference), during the whole process of opening the door body 30 from G4 to G maxThroughout the process, the door body 30 (i.e. the positioning groove 6 and the guide groove 7) rotates counterclockwise relative to the cabinet 10 and moves towards the direction close to the first guide end point K1; that is, the door body 30 keeps a tendency of counterclockwise rotation and outward and backward movement relative to the cabinet 10. That is, the door body 30 is opened from G max Throughout the process, the door body 30 moves outward and backward relative to the cabinet 10 by a certain distance. In the above opening process, the door body 30 moves backward, effectively compensating for the distance of the previous forward movement of the door body 30, avoiding excessive forward movement caused by the rotation of the door body 30, and making the door body 30 significantly separate from the cabinet 10, thereby ensuring the stability of the door body 30 in this state.

[0159] In summary, the movement trend of the door body 30 in the opening process is as follows:

[0160] (1) In the process of opening the door body 30 from the closed state to G4, the door body 30 moves outward and forward relative to the cabinet 10 by a certain distance; in combination with Figures 24-26 , when the door body 30 is opened, the side sealing strip 3 carried by the opened door body 30 moves outward, and the moving side sealing strip 3 quickly separates from the side sealing strip on the other door body 30 (see Figure 25 and Figure 26 the change of the area in the dashed box), effectively avoiding the opening of the other door body 30 caused by the movement of the side sealing strip. That is, this stage can avoid the opening of the other door body 30 when one of the two oppositely arranged door bodies 30 is opened, effectively reducing the loss of cold energy; at the same time, it can effectively reduce the shielding of the door body 30 to the access opening; and effectively avoid the interference between the door body 30 and the cabinet 10 during the opening process.

[0161] (2) In the process of opening the door body 30 from G4 to G max , the door body 30 moves outward and backward relative to the cabinet 10 by a certain distance; this stage effectively compensates for the distance of the previous forward movement of the door body 30, avoids excessive forward movement caused by the rotation of the door body 30, and makes the door body 30 significantly separate from the cabinet 10, thereby ensuring the stability of the door body 30 in this state; at the same time, it can effectively reduce the shielding of the door body 30 to the access opening;

[0162] (3) In the process of opening the door body 30 from the closed state to the maximum angle G max , the door body 30 always has a tendency to move outward, which can effectively reduce the shielding of the door body 30 to the access opening, so that the drawer stored in the storage compartment can fully utilize the width of the storage compartment to increase the width size of the drawer, increase the space utilization rate of the drawer, and ensure that it can be pulled out from the storage compartment.

[0163] In summary, the setting with the above trajectory characteristics can avoid one of the two oppositely arranged door bodies 30 from being opened when the other door body 30 is opened, effectively reducing the loss of cold energy. On the other hand, the setting can also avoid the door body 30 from blocking the taking and placing opening when the door body 30 is opened to the maximum angle, thereby facilitating the increase of the width size of the drawer.

[0164] In summary, in combination with Figures 15-23 With the positioning groove 6 and the guide groove 7 as the reference, the axis line segment IP always rotates clockwise and moves relative to the second trajectory line K to the direction close to the second guide end point K2. Specifically, the movement direction of the axis line segment IP relative to the second trajectory line K is I0P0→I1P1→I2P2→I3P3→I4P4→I5P5→I6P6. In the present application, the movement trend of the axis line segment IP relative to the second trajectory line K is consistent, and the movement is continuous without acceleration mutation, so that the door body 30 is good in stress and more stable and smooth in opening.

[0165] In some embodiments of the present application, as Figures 27-33 shown, with the box body 10 (the hinge shaft 4 and the guide circular block 5) as the reference, the door body 30 (the positioning groove 6 and the guide groove 7) rotates and opens relative to the box body 10, corresponding to the door body 30 being opened to 0°, G1, G2, G3, G4, G5, G max , the position of the first side edge W relative to the guide circular block 5 is located at W0, W1, W2, W3, W4, W5, W6 in turn; that is, in the process of the door body 30 being rotated and opened to G max , the movement trajectory of the first side edge W is a curve in which W0, W1, W2, W3, W4, W5, W6 are located at the same time. It can be concluded that in the entire process of the door body 30 being first rotated and moved outward and forward and then being rotated and moved outward and backward, the first side edge W is first moved outward by a certain distance and then keeps the trend of moving outward, and the first side edge W is moved outward to the maximum position when the door body 30 is rotated to G3. In the present embodiment, G3∈[48°, 52°] any value, so it is concluded that the first side edge W is moved outward to the maximum point when the door body 30 is rotated and opened to an angle of about 50°.

[0166] It is assumed that the door body 30 rotates around the fixed shaft (the guide center axis I), and the position of the first side edge W relative to the guide circular block 5 is located at W`0, W`1, W`2, W`3, W`4, W`5, W`6 in turn when the door body 30 is opened to 0°, G1, G2, G3, G4, G5, G max .

[0167] Compared with the mode that the door body 30 rotates around the fixed shaft (the guide center shaft I), it can be known that W1 is located at the outward and forward side of W`1, W2 is located at the outward and forward side of W`2, W3 is located at the outward and forward side of W`3, W4 is located at the outward side of W`4, W5 is located at the outward and backward side of W`5, and W6 is located at the outward and backward side of W`6. In summary, compared with the mode that the door body 30 rotates around the fixed shaft (the guide center shaft I), in the whole process that the door body 30 is opened from the closed state to G max , the first side edge W always moves outward by a certain distance.

[0168] In the embodiment of the present application, when the door body 30 is opened to , the door body 30 moves outward while rotating. That is, the relative positions of the guide round block 5 and the guide groove 7 and the hinge shaft 4 and the positioning groove 6 are in the state of the initial state in the process of opening when the door body 30 is opened to . In the initial stage of opening, the door body 30 rotates and moves outward, and the other door body 30 can be avoided from being opened when one of the two oppositely arranged door bodies 30 is opened. Therefore, the guide round block 5 and the hinge shaft 4 can be arranged to be sequentially located at I1 and P1 above, or sequentially located at I2 and P2, or sequentially located at I3 and P3, and so on when the door body 30 is closed. That is, in the embodiment, the position of the center radius IA of the guide round block 5 relative to the door body 30 when the door body 30 is opened to can be arranged as the position of the center radius IA of the guide round block 5 relative to the door body 30 in the initial state when the door body 30 is closed.

[0169] In the embodiment of the present application, in the whole process that the door body 30 is opened from the closed state to the maximum angle G max > 90°, the position of the hinge shaft 4 in the positioning groove 6 and the position of the guide round block 5 in the guide groove 7 always change and move in one direction, and there is no force mutation, and the movement is more smooth.

[0170] In some embodiments of the present application, as shown in Figures 27-33 , assuming that the door body 30 rotates around the fixed shaft (the guide center shaft I), the position of the side sealing edge H relative to the guide round block 5 is sequentially located at H`0, H`1, H`2, H`3, H`4, H`5, and H`6 when the door body 30 is opened to 0°, G1, G2, G3, G4, G5, and G max .

[0171] Compared with the mode that the door body 30 rotates around the fixed shaft (the guide center shaft I), it can be known that H1 is located at the outward and forward side of H`1, H2 is located at the outward and forward side of H`2, H3 is located at the outward and forward side of H`3, H4 is located at the outward side of H`4, H5 is located at the outward and backward side of H`5, and H6 is located at the outward and backward side of H`6. In summary, compared with the mode that the door body 30 rotates around the fixed shaft (the guide center shaft I), the side sealing edge H always moves outward by a certain distance during the whole process that the door body 30 is opened from the closed state to G max , which greatly increases the distance that the side sealing edge H moves outward and effectively reduces the transverse shielding of the door body 30 to the taking and placing opening.

[0172] In the embodiment, a second reference plane M2 is further defined. As shown in Figure 11 , the second reference plane M2 is the plane where the taking and placing opening of the storage chamber is located. The second reference plane M2 does not move during the opening process of the door body 30 relative to the cabinet 10 and is a reference plane that remains stationary relative to the cabinet 10.

[0173] During the process that the door body 30 is opened from the closed state to G5, the side sealing edge H always moves in the direction away from the second reference plane M2 and the reference plane M0;

[0174] During the process that the door body 30 is opened from G5 to the maximum angle G max , the side sealing edge H moves in the direction away from the second reference plane M2 and close to the reference plane M0;

[0175] That is, when the door body 30 is opened to G5, the distance between the side sealing edge H and the second reference plane M2 is the largest. In the embodiment, G5 = 103°.

[0176] As an implementable mode, during the process that the door body 30 is opened from the closed state to G5, the movement track of the side sealing edge H is a circular arc. That is, during the opening process of the door body 30, the side sealing edge H moves in a circular arc. The "circular arc" includes a standard circular arc defined in mathematics and also includes an arc line with a small deviation from the standard circular arc. As an implementable mode, the small deviation is limited within 1 mm. The hinge with the above track characteristics and the track changing mechanism of the door body 20 make the opening of the door body 30 more smooth.

[0177] In some embodiments of the present application, in combination with Figure 15 , during the process that the door body 30 is rotated from the closed state to the maximum angle G max , the relative positional relationship between the center of mass plane F and the guide center shaft I and the positioning center shaft P constantly changes, which will be described below.

[0178] The distance between the guide center axis I and the centroid plane F in the projection of the top wall of the cabinet 10 is denoted as the offset distance J; in the process of opening the door body from the closed state to G`, the guide center axis I is located on the side of the centroid plane F close to the front wall of the door in the projection of the plane where the top wall of the cabinet is located; in the opening process, the offset distance gradually decreases with the increase of the opening angle of the door body, and the offset distance J is 0 when the door body is opened to G`.

[0179] In the process of opening the door body from G` to G max , the guide center axis I is located on the side of the centroid plane F away from the front wall of the door in the projection of the plane where the top wall of the cabinet is located; in the opening process, the offset distance gradually increases with the increase of the opening angle of the door body.

[0180] The above is explained from another angle, when the guide center axis I is located on the side of the centroid plane F close to the front wall 31 of the door, the offset distance J is positive; correspondingly, when the guide center axis I is located on the side of the centroid plane F away from the front wall 31 of the door, the offset distance J is negative; when the guide center axis I is located on the centroid plane F, the offset distance J is 0;

[0181] In the process of opening the door body 30 from the closed state to G`, the offset distance J between the guide center axis I and the centroid plane F shows a decreasing trend. And when the door body is opened to G`, the offset distance J is 0; it can be set that G` = 22°.

[0182] In the process of opening the door body 30 from G` to G max , the offset distance J is negative, and the offset distance J shows a decreasing trend with the increase of the opening angle.

[0183] In some embodiments of the present application, when the door body 30 is opened to G0, G1, G`, G2, G3, G4, G5, G max , the offset distances are denoted as J0, J1, J`, J2, J3, J4, J5, J6 in turn; J0 > J1 > J` = 0 > J2 > J3 > J4 > J5 > J6.

[0184] In the above embodiment, in the process of opening the door body 30 from the closed state to G max , the offset distance J (when the position is divided into positive and negative, it is the absolute value of J) is any value between 0 and 7 mm. In this embodiment, the distance between the centroid plane F of the door body 30 and the guide center axis is effectively limited, so that the centroid plane F is always near the guide center axis I, effectively enhancing the stability of the door body 30 in the whole opening process.

[0185] When the door body 30 is closed, the centroid plane F is located between the guide center axis I and the positioning center axis P, further ensuring the stability of the door body 30 in the closed state.

[0186] In some embodiments of this application, when the door is opened at 90°, the refrigerator door is flush with the side of the refrigerator body.

[0187] Furthermore, it prevents the door from extending too far beyond the side wall of the cabinet at 90° and conceals any bulging caused by foaming.

[0188] As an feasible approach, combining Figure 8 and Figure 12 As shown, when the door 30 is closed, the positioning center axis P is located at the starting positioning point P0 of the first trajectory line S; the distance between the starting positioning point P0 and the reference plane M0 is L1. The front wall 31 of the door is parallel to the plane where the pick-up and drop-off opening is located;

[0189] When the door 30 is opened to 90°, the front wall 31 of the door is parallel to the side wall of the first body; the positioning center axis P is located at the fourth positioning point P4 of the first trajectory line S; the distance between the fourth positioning point P4 and the front wall 31 of the door is L2.

[0190] When L1 = L2, when the door 30 is opened to 90°, the front wall 31 of the door is flush with the first side wall of the box 10; where L1 and L2 are equal is specifically defined as the difference between L1 and L2 being any value from -2mm to 2mm.

[0191] When L1 < L2, when the door 30 is opened to 90°, the front wall 31 of the door protrudes beyond the outer side of the first body side wall of the cabinet 10. As another feasible method, L1 < L2, 0 ≤ L2 - L1 ≤ 4cm, to cover the bulges on the cabinet 10 caused by foaming, effectively concealing the flaws and improving the aesthetics of the refrigerator.

[0192] It should be noted that, in this application example, "parallel" is specifically defined as two planes with an included angle of 0° to 3°. That is, two planes with an included angle of 0° to 3° are defined as parallel. "Aligned" is specifically defined as any value where the maximum distance between two planes is less than 2mm. "Perpendicular" is specifically defined as two planes with an included angle of 88° to 90°. This definition applies to the entire application.

[0193] Figure 34 This is a schematic diagram of one structure of the hinge in this application; such as Figures 4-7 and Figure 34 As shown, in some embodiments of this application, the hinge is integrally formed by die casting. Taking the hinge located at the lower end of the door as an example, the hinge plate 40, guide block 5, and hinge shaft 4 are integrally formed by die casting, which effectively increases the connection strength and integrity of the hinge plate 40, guide block 5, and hinge shaft 4.

[0194] It should be noted that the hinge is integrally formed by die casting and is applicable to hinges located at the lower end of the door body 30, as well as hinges located at the upper end of the door body 30.

[0195] Figures 35-38 Another structure diagram of the hinge in the application; as shown in the figure, in some embodiments of the application, the hinge plate 40 and the guide round block 5 are separately arranged. In this embodiment, the hinge arranged at the lower end of the door body is taken as an example for description; it is to be noted that the structure of the following hinge is also applicable to the upper hinge arranged at the upper end of the door body 30. Figures 35-38

[0196] Specifically, the extension part 402 of the hinge plate 40 is formed with the hinge shaft 4 and the positioning shaft 60. In this embodiment, the hinge shaft 4 is located at the side of the positioning shaft 60 close to the box body 10 and away from the first body side wall. The guide round block 5 is in the form of a flat plate, and the guide round block 5 is provided with a first through hole 51 and a second through hole 52; wherein the first through hole 51 is matched with the hinge shaft 4, and the second through hole 52 is matched with the positioning shaft 60; through the first through hole 51 and the second through hole 52, the guide round block 5 is installed on the extension part 402 of the hinge plate 40. The above-mentioned two shafts of the hinge shaft 4 and the positioning shaft 60 are matched with the guide round block 5, which facilitates the installation of the guide round block 5 and effectively limits the movement of the guide round block 5 in the surface of the extension part 402 close to the door body 30; the positioning groove 6 on the door body 30 is matched with the hinge shaft 4, and the guide groove 7 is matched with the guide round block 5, which effectively limits the movement of the guide round block 5 along the central axis direction of the hinge shaft 4; the above-mentioned arrangement effectively fixes the guide round block 5 and moves relative to the guide groove 7 during the opening of the door body 30. The above-mentioned separate arrangement of the hinge plate 40 and the guide round block 5 facilitates the replacement and maintenance of the parts.

[0197] In addition, in this embodiment, the guide round block 5 can be formed by injection molding or die casting.

[0198] It is to be noted that the height of the positioning shaft 60 is not higher than the depth of the second through hole 52 of the guide round block 5; in this embodiment, the height of the positioning shaft 60 is equal to the depth of the second through hole 52; that is, the positioning shaft 60 is accommodated in the second through hole 52, so as to avoid the interference of the positioning shaft 60 with other parts and affect the movement of the door body 30.

[0199] As a settable mode, the second through hole 52 is located at the center of the guide round block 5; the positioning shaft 60 is installed in the second through hole 52 and passes through the center of the guide round block 5. It can be set that the center of the second through hole 52 coincides with the center point of the guide round block 5. That is, the guide central axis I of the guide round block 5 coincides with the central axis of the positioning shaft 60, so as to effectively limit the movement of the hinge plate 40 and the guide round block 5 in the surface of the extension part 402 close to the door body 30, reduce the shaking, and improve the stability of the opening of the door body 30.

[0200] Figures 39-40 Another structure diagram of the hinge in the application; as shown in the figure, in some embodiments of the application, the hinge plate 40 and the guide round block 5 are separately arranged. In this embodiment, the hinge arranged at the lower end of the door body is taken as an example for description; it is to be noted that the structure of the following hinge is also applicable to the upper hinge arranged at the upper end of the door body 30. Figures 39-40 ​As shown, in some embodiments of the present application, the hinge plate 40 and the guide block 5 are separately arranged. In this embodiment, the hinge arranged at the lower end of the door body is taken as an example for description; it should be noted that the structure of the following hinge is also applicable to the upper hinge arranged at the upper end of the door body 30.

[0201] Specifically, the extension part 402 of the hinge plate 40 is formed with a first positioning hole 53 and a second positioning hole 54. In this embodiment, the first positioning hole 53 is located on the side of the second positioning hole 54 close to the box body 10 and away from the first body side wall. The guide block 5 is in the form of a flat plate, and the guide block 5 is provided with a hinge shaft 4 and a positioning shaft 60; wherein the hinge shaft 4 includes a first shaft segment located on the side of the guide block 5 close to the extension part 402, and a second shaft segment away from the extension part 402; wherein the positioning shaft 60 is located on the same side of the guide block 5 as the first shaft segment; the first shaft segment of the hinge shaft 4 cooperates with the first positioning hole 53, and the positioning shaft 60 cooperates with the second positioning hole 54; through the first positioning hole 53 and the second positioning hole 54, the guide block 5 is installed on the extension part 402 of the hinge plate 40. The above arrangement of the two positioning holes of the first positioning hole 53 and the second positioning hole 54 cooperates with the two shafts on the guide block 5, facilitating the installation of the guide block 5, and effectively limiting the movement of the guide block 5 in the surface of the extension part 402 close to the door body 30; the positioning groove 6 on the door body 30 cooperates with the second shaft segment of the hinge shaft 4, and the guide groove 7 cooperates with the guide block 5, effectively limiting the movement of the guide block 5 along the central axis direction of the hinge shaft 4; the above arrangement effectively fixes the guide block 5 and moves relative to the guide groove 7 during the opening of the door body 30.

[0202] In addition, in this embodiment, the guide block 5 can be formed by injection molding or die casting.

[0203] As a settable manner, the height of the positioning shaft 60 is not higher than the depth of the second through hole 52 of the guide block 5; in this embodiment, the height of the second positioning hole 54 is equal to the depth of the second through hole 52; that is, the second positioning hole 54 is accommodated in the second through hole 52, so as to avoid the interference of the second positioning hole 54 with other components and affect the movement of the door body 30.

[0204] As another settable manner, the positioning shaft 60 and the hinge shaft 4 are respectively located on opposite sides of the guide center axis I, so as to increase the firmness of the hinge and the guide block 5 and reduce the relative movement between the extension part 402 and the guide block 5. It can be set that, in the cross section of the guide block 5, the central axis of the positioning shaft 60, the central axis of the hinge shaft 4 and the guide center axis I are on the same straight line; that is, in the cross section of the guide block 5, the central axis of the positioning shaft 60 and the central axis of the hinge shaft 4 are on the same diameter of the cross section of the guide block 5. In order to increase the connection strength of the guide block 5, reduce the shaking of the guide block 5, and balance the force distribution.

[0205] Figure 41 Fig. 2 is another structure diagram of the hinge in the present application; refer to Figure 41 In some embodiments of the present application, the hinge plate 40 and the guide block 5 are separately arranged. In this embodiment, the hinge arranged at the lower end of the door body is taken as an example for description. It should be noted that the structure of the hinge described below is also applicable to the upper hinge arranged at the upper end of the door body 30. Specifically, the connecting portion 401 of the hinge arranged at the lower end of the door body 30 is connected to the front end face of the cabinet 10. The extension portion 402 of the hinge plate 40 is formed with a recess 55, and the projection of the recess 55 on the hinge plate 40 is circular. The recess 55 is formed with a hinge shaft 4 close to the cabinet 10, and the hinge shaft 4 is integrally formed with the extension portion 402 and the connecting portion 401. The guide block 5 is in the form of a flat plate, and the guide block 5 is provided with a first through hole 51 matched with the hinge shaft 4. Through the first through hole 51 and the recess 55, the guide block 5 is installed on the extension portion 402 of the hinge plate 40. The outer peripheral wall of the guide block 5 is in contact with the inner peripheral wall of the recess 55. Under the restriction of the recess 55, the guide block 5 is uniformly stressed in the circumferential direction, thereby increasing the stability of the cooperation between the guide block 5 and the hinge plate 40. The hinge shaft 4 and the recess 55 are arranged to enable the hinge to cooperate with the guide block 5, facilitate the installation of the guide block 5, and effectively limit the movement of the guide block 5 on the surface of the extension portion 402 close to the door body 30. The positioning groove 6 on the door body 30 cooperates with the hinge shaft 4, and the guide groove 7 cooperates with the guide block 5, thereby effectively limiting the movement of the guide block 5 along the central axis direction of the hinge shaft 4. The above arrangement effectively fixes the guide block 5 and enables the guide block 5 to move relative to the guide groove 7 during the opening of the door body 30. The hinge plate 40 and the guide block 5 are arranged separately, thereby facilitating the replacement and maintenance of the parts.

[0206] In addition, in this embodiment, the guide block 5 can be formed by injection molding or die casting.

[0207] It should be noted that in the direction perpendicular to the hinge plate 40, the thickness of the guide block 5 is higher than the depth of the recess 55, so as to ensure that the guide block 5 is at least partially located outside the recess 55, thereby realizing the cooperation between the guide block 5 and the guide groove 7.

[0208] Figures 42-52 Fig. 4 is a structure diagram of the locking of the door body and the cabinet in the present application; refer to Figures 42-52 In some embodiments of the present application, the positioning groove 6 and the guide groove 7 are formed on the door body 30, and the door body 30 is fixed with a locking block installed at a position adjacent to the guide groove 7 on the door body 30. In this embodiment, the end of the hinge away from the first body side wall is provided with a first matching portion, and the locking block is provided with a second matching portion for cooperating with the first matching portion to realize the locking and unlocking of the door body 30 and the cabinet 10.

[0209] Specifically, the locking block arranged at the lower end of the door body 30 is taken as an example for illustration in the embodiment. The door body 30 comprises a door end cover 38 arranged at the end of the door body 30 close to the hinge. The door end cover 38 has a positioning groove 6 and a guide groove 7 close to the hinge. That is, in the embodiment, the positioning groove 6 and the guide groove 7 are integrally formed on the door end cover 38. In the embodiment, the door end cover 38 is an injection molding part which is integrally formed by injection molding and has the positioning groove 6 and the guide groove 7 formed thereon. As mentioned above, the guide groove 7 is defined by the cooperation of the first guide strip 8 and the second guide strip 9.

[0210] The door end cover 38 is provided with a receiving groove 37 at a position away from the adjacent position of the door side wall 32, and the locking block is inserted into the receiving groove 37 and then fastened and connected with the door body 30 by screws or the like.

[0211] In the embodiment, the second cooperation part of the locking block is arranged as a locking hook 82. The locking hook 82 extends away from the door side wall 32 and is bent towards the side close to the door back wall 33 and the door side wall 32, and the opening of the locking hook 82 faces the door side wall 32, and the free end of the locking hook 82 is located at the side close to the door back wall 33.

[0212] The first cooperation part arranged at the side away from the first body side wall of the hinge plate 40 is arranged as a stopper 41, and the side close to the box body of the stopper 41 is formed with a hooking gap 42; when the door body 30 is in the closed state, the free end of the locking hook 82 is accommodated in the hooking gap 42, the stopper 41 is located in the locking hook 82, and the locking hook 82 on the door body 30 hooks the stopper 41 on the hinge plate 40, so as to lock the door body 30 and avoid affecting the refrigeration and freezing effect of the refrigerator due to the door body 30 not being closed tightly; when the door body 30 is opened, the locking hook 82 is deformed under force to overcome the block of the stopper 41, so as to be separated from the stopper 41.

[0213] The locking hook 82 can comprise a root connecting part 83 and a hooking part 84. The root connecting part 83 is fixedly connected with the receiving groove 37, and the hooking part 84 is connected with the root connecting part 83 and is bent towards the side close to the door back wall 33 and the door side wall 32. Screws are arranged to connect the root connecting part 83 with the door body 30, so as to strengthen the connection strength of the root connecting part 83 with the door body 30, so that only the hooking part 84 is deformed when the locking hook 82 is separated from the stopper 41.

[0214] The free ends of the hooking part 84 and the stopper 41 are both in the shape of a circular arc, which is beneficial to the smooth hooking or separation of the hooking part 84 from the stopper 41 along the circular arc.

[0215] In combination with Figures 42-52When the door body 30 is closed from the open state, the free end of the hooking part 84 gradually approaches the stop part 41 with the rotation closing of the door body 30, and when the hooking part 84 abuts against the stop part 41, the door body 30 continues to close, the hooking part 84 deforms under the action of the stop part 41, the stop part 41 enters the hooking part 84, and the free end of the hooking part 84 enters the hooking gap 42; the lock hook 82 is locked with the hinge plate 40, and the locking of the door body 30 and the box body 10 is realized. When the door body 30 is opened from the closed state, the process is opposite to that of the door body closing, which will not be described here. When the door body 30 is closed from the open state to an angle less than 7°, the door body 30 is automatically closed under the action of the hooking part 84 and the stop part 41; when the door body is opened to 5° to 8°, the hooking part 84 and the stop part 41 are separated.

[0216] In some embodiments, the first protrusion 34 and the second protrusion 35 can be arranged in the accommodating groove 37 on the door body 30, and the gap groove 36 is formed between the first protrusion 34 and the second protrusion 35; the first protrusion 34 is located on the side of the second protrusion 35 close to the door front wall 31 and the door side wall 32. The insertion plate 85 is formed at the root connecting part 83 and is inserted into the gap groove 36, so that the deformation of the root connecting part 83 in the direction from the door front wall 31 to the door rear wall 33 can be avoided by the limiting of the first protrusion 34 and the second protrusion 35.

[0217] Specifically, the insertion plate 85 is arranged as an arc-shaped plate; the second protrusion 35 is an arc-shaped plate, the edge of the first protrusion 34 close to the second protrusion 35 is consistent with the shape of the second protrusion 35, and the first protrusion 34 and the second protrusion 35 jointly define the arc-shaped gap groove 36; the arc-shaped insertion plate 85 cooperates with the arc-shaped gap groove 36. The above arc-shaped arrangement increases the limiting area of the gap groove 36 to the root connecting part 83, increases the connection strength of the locking block and the door body 30, and effectively limits the deformation of the root connecting part 83.

[0218] The locking block can be made of POM material, which has the characteristics of strong friction resistance and can improve the service life of the hinge.

[0219] Figures 53-55 It is a schematic view of the structure of the door body and the box body in the present application; refer to Figures 53-55 In some embodiments of the present application, the door body 30 includes a door end cover 38 arranged at the end of the door body 30 close to the hinge; the mounting block is arranged at the position opposite to the hinge plate 40 on the door end cover 38, and the positioning groove 6 and the guide groove 7 are formed on the mounting block. In the present embodiment, the first matching part is arranged at the end of the hinge away from the first body side wall, and the mounting block has the second matching part, which is used to cooperate with the first matching part to realize the locking and unlocking of the door body 30 and the box body 10.

[0220] Specifically, the mounting block arranged at the lower end of the door body 30 is taken as an example for illustration in the embodiment. In the embodiment, the mounting block is integrally formed.

[0221] The mounting block comprises a positioning groove 6, which comprises a groove bottom 70 and a circumferential groove wall 71. The circumferential groove wall 71 surrounds the edge of the groove bottom 70, and the circumferential groove wall 71 surrounds the groove opening 72 opposite to the groove bottom 70. The mounting block comprises a plate body 81 arranged at the groove opening 72 of the positioning groove 6 and surrounding the groove opening 72 of the positioning groove 6. The plate body 81 is provided with a first guide strip 8 and a second guide strip 9. The first guide strip 8 is arranged at the side of the positioning groove 6 away from the door side wall 32, and the second guide strip 9 is arranged at the side of the positioning groove 6 away from the door side wall 32. In addition, the door end cover 38 at the lower end of the door body 30 is provided with a receiving groove 37. The mounting block is inserted into the receiving groove 37, and then the plate body 81 is fastened and connected with the door body 30 by screws or the like. As a settable mode, the end of the plate body 81 close to the door back wall 33 is provided with a clamping interface 86. The inner wall of the receiving groove 37 is provided with a clamping protrusion 371 matched with the clamping interface 86. When the mounting block is inserted into the receiving groove 37, the clamping protrusion 371 is installed in the clamping interface 86 to limit the relative position of the mounting block and the door body 30. In the embodiment, the screw is fixed at the side of the plate body 81 away from the door side wall 32, i.e. the screw fixing position is located at the side of the clamping interface 86 and the clamping matching position of the clamping protrusion 371 away from the door side wall 32, which effectively increases the connection firmness of the mounting block and the door body 30. In the embodiment, the area of the receiving groove 37 close to the door side wall 32 is formed with a receiving cavity 39. The positioning groove 6 is installed in the receiving cavity 39, and the circumferential groove wall 71 is matched with the cavity wall of the receiving cavity 39.

[0222] In some embodiments of the present application, in combination with Figures 53-55 , the second matching part on the mounting block is arranged as a lock hook structure. Specifically, the second matching part comprises a lock hook 82 arranged at the side of the plate body 81 away from the door side wall 32. The lock hook 82 extends away from the door side wall 32 and is bent to form a side close to the door back wall 33 and the door side wall 32. The opening of the lock hook 82 faces the plate body 81 (the opening of the lock hook 82 faces the door side wall 32), and the free end of the lock hook 82 is located at the side close to the door back wall 33.

[0223] The first matching part arranged at the side of the hinge plate 40 away from the first body side wall is arranged as a stop part 41. The side close to the box body of the stop part 41 is formed with a hooking gap 42. When the door body 30 is in a closed state, the free end of the lock hook 82 is accommodated in the hooking gap 42, and the stop part 41 is located in the lock hook 82. The lock hook 82 on the door body 30 hooks the stop part 41 on the hinge plate 40, thereby locking the door body 30, avoiding the door body 30 from being closed too loosely to affect the refrigeration and freezing effect of the refrigerator. When the door body 30 is opened, the lock hook 82 is deformed under force to overcome the block of the stop part 41, thereby disengaging from the stop part 41.

[0224] The locking hook 82 can include a root connecting portion 83 and a hooking portion 84. The root connecting portion 83 is connected with the plate body 81, and the hooking portion 84 is connected with the root connecting portion 83 and is bent towards the side close to the door rear wall 33 and the door side wall 32. A screw is arranged through the root connecting portion 83 to connect with the door body 30, so as to strengthen the connection strength of the root connecting portion 83 with the door body 30, so that only the hooking portion 84 is deformed when the locking hook 82 is separated from the stop portion 41.

[0225] The free end of the hooking portion 84 and the free end of the stop portion 41 are both in the shape of a circular arc, which is beneficial for the hooking portion 84 to smoothly hook or separate from the stop portion 41 along the circular arc.

[0226] When the door body 30 is closed from the open state, with the rotation closing of the door body 30, the free end of the hooking portion 84 gradually approaches the stop portion 41. When the hooking portion 84 abuts against the stop portion 41, the door body 30 continues to close, and under the action of the stop portion 41, the hooking portion 84 is deformed, the stop portion 41 enters the hooking portion 84, and the free end of the hooking portion 84 enters the hooking gap 42; the locking hook 82 is locked with the hinge plate 40, and the locking of the door body 30 and the cabinet 10 is realized. When the door body 30 is opened from the closed state, the process is opposite to that of the door body closing, which will not be described herein. When the door body 30 is closed from the open state to an angle less than 7°, the door body 30 is automatically closed under the action of the hooking portion 84 and the stop portion 41; when the door body is opened to 5° to 8°, the hooking portion 84 and the stop portion 41 are separated.

[0227] In some embodiments, the door body 30 can be provided with a first protrusion 34 and a second protrusion 35, and a gap slot 36 is formed between the first protrusion 34 and the second protrusion 35; the first protrusion 34 is located on the side close to the door front wall 31 and the door side wall 32 of the second protrusion 35. A plug-in plate 85 is formed at the root connecting portion 83, and the plug-in plate 85 is plugged into the gap slot 36, so that the deformation of the root connecting portion 83 in the direction from the door front wall 31 to the door rear wall 33 can be avoided by the limiting of the first protrusion 34 and the second protrusion 35.

[0228] Specifically, the plug-in plate 85 is provided in the shape of an arc plate; the second protrusion 35 is provided in the shape of an arc plate, the edge of the first protrusion 34 close to the second protrusion 35 is consistent with the shape of the second protrusion 35, and the first protrusion 34 and the second protrusion 35 jointly define the arc-shaped gap slot 36; the plug-in plate 85 in the shape of an arc plate cooperates with the arc-shaped gap slot 36. The above arc-shaped arrangement increases the limited area of the gap slot 36 to the root connecting portion 83, increases the connection strength of the mounting block with the door body 30, and effectively limits the deformation of the root connecting portion 83.

[0229] Optionally, the mounting block at the upper end of the door body 30 has only a part provided with the positioning slot 6 and the guide slot 7, and does not include a locking hook structure. Correspondingly, when the structure of the mounting block is changed, the receiving slot 37 provided on the door body is adapted to the same, so as to accommodate and fix the mounting block.

[0230] The mounting block can use POM material, POM has the characteristics of strong friction resistance, which can improve the service life of the hinge. In addition, in the embodiment, the positioning groove 6, the guide groove 7 and the lock hook structure are integrally formed to form the mounting block, which increases the structural precision and the integrity and strength of the mounting block. The mounting block which integrates the positioning groove 6, the guide groove 7 and the lock hook structure can be integrally formed by injection molding.

[0231] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A refrigerator characterized by, It comprises: a box body having a first body side wall and a second body side wall arranged oppositely; a hinge arranged on the box body and close to the first body side wall, the hinge being provided with a guide round block and a hinge shaft fixed with the guide round block; a door body having a door front wall away from the box body when the door body is closed, a door side wall close to the hinge and connected with the door front wall; a guide groove arranged on the end of the door body close to the hinge, the guide round block being installed in the guide groove and matched with the opposite groove walls of the guide groove; a positioning groove being a curved groove and located on the groove bottom of the guide groove, the positioning groove extending from the end away from the door side wall to the direction close to the door side wall, and the distance between the positioning groove and the door front wall first increases and then decreases, the hinge shaft being matched with the positioning groove; when the door body is closed, the hinge shaft is located at the end of the positioning groove away from the door side wall, during the opening process of the door body from the closed state, the guide round block is always matched with the opposite groove walls of the guide groove and moves relative to the guide groove, the hinge shaft moves relative to the positioning groove to the direction close to the door side wall, so that the door body can rotate and move a distance away from the second body side wall at the same time.

2. The refrigerator according to claim 1, characterized in that: The guide groove comprises first and second guide strips arranged in parallel, the first guide strip is located on the side of the second guide strip away from the door side wall, and the positioning groove is located between the first and second guide strips and extends in the direction from the first guide strip to the second guide strip, the first and second guide strips are matched with the guide round block.

3. The refrigerator according to claim 1 or 2, characterized in that: The central trajectory line of the guide groove is recorded as a second trajectory line K, and the second trajectory line K is perpendicular to the door front wall.

4. The refrigerator according to claim 3, characterized in that: The central axis of the hinge shaft is recorded as a positioning central axis P, and the central axis of the guide round block is recorded as a guide central axis I, in the projection of the box body top wall, the radius of the circular cross section of the guide round block passing through the positioning central axis P is recorded as an axis center radius IA, A is the intersection point of the radius of the circular cross section of the guide round block passing through the positioning central axis P on the boundary of the circular cross section of the guide round block; I, P and A are on the same straight line and on the circular cross section radius IA of the guide round block; the line segment with the guide central axis I and the positioning central axis P as end points is recorded as a line segment IP, and the line segment with point A and the positioning central axis P as end points is recorded as a line segment AP, the length of the line segment IP is greater than the length of the line segment AP.

5. The refrigerator according to claim 4, characterized in that: the plane passing through the guide central axis I and parallel to the first body side wall is recorded as a first reference plane M1, in the projection of the box body top wall, the included angle between the axis center radius IA and the first reference plane M1 is recorded as a first included angle θ, wherein the first included angle θ is any value between 25° and 35°.

6. The refrigerator according to claim 5, characterized in that: in the projection of the box body top wall, the axis center radius IA is located on the side of the first reference plane M1 away from the first body side wall, and on the side close to the box body of the plane passing through the guide central axis I and parallel to the door front wall when the door body is closed.

7. The refrigerator according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The radius of the hinge shaft is denoted as r, and the radius of the guide circular block is denoted as R, wherein r / R is any value between 0.7 and 0.

8.

8. The refrigerator according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The center trajectory line of the positioning slot is denoted as a first trajectory line S, the distance between the end of the first trajectory line S away from the door side wall and the door front wall is denoted as D0, and the distance between the end of the first trajectory line S close to the door side wall and the door front wall is denoted as D1, wherein D0 is greater than D1.

9. The refrigerator according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The door body comprises a door back wall opposite to the door front wall, and a door seal strip is arranged on the door back wall, wherein the door seal strip is close to the door side wall and away from the door front wall, and the edge thereof is denoted as a side seal edge H. The box body defines a heat-insulated storage room, and the storage room has a taking and placing opening closed or opened by the door body; the plane where the taking and placing opening is located is denoted as a second reference plane M2; the plane where the first body side wall is located is denoted as a reference plane M0; the second reference plane M2 and the reference plane M0 do not move during the opening process of the door body relative to the box body, and are reference planes that remain stationary relative to the box body; During the process that the door body is opened from the closed state to G5, the side seal edge H always moves in a direction away from the second reference plane M2 and the reference plane M0. The door body is opened to a maximum angle G5 max In the process, the side sealing edge H moves away from the second reference plane M2 and approaches the reference plane M0; wherein G max > G5 > 90°.

10. The refrigerator according to claim 9, characterized in that: During the process that the door body is opened from the closed state to G5, the movement trajectory of the side seal edge H is a circular arc.

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