refrigerator

Abstract

The present invention proposes a refrigerator, which includes a box body having a first side wall and a second side wall, a hinge arranged on the box body and close to the first side wall, and a door body having a door front wall and a door side wall; a guide block, a hinge shaft, and a first matching portion are provided on the hinge; a guide groove is provided at the end of the door body close to the hinge, and the guide block matches with the two opposite groove walls of the guide groove; a positioning groove is provided on the groove bottom of the guide groove, and the hinge shaft matches with the positioning groove; a locking block is fixed at the end of the door body and located on the side of the guide groove away from the door side wall, and the locking block has a second matching portion for matching with the first matching portion; when the door body is opened from a closed state, the guide block moves relative to the guide groove; the hinge shaft moves relative to the positioning groove, so that the door body can move outward a certain distance while rotating; the present invention effectively avoids the situation where one door body of a double-door refrigerator drives the other door body to open when one is opened, thereby increasing the opening area of ​​the refrigerator, thereby reducing the overflow of cold air.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, in particular to a refrigerator. Background Art

[0002] In the related art, for a refrigerator with two door bodies arranged opposite to each other, the two door bodies arranged opposite to each other cooperate to open or close the access port; in order to ensure the sealing of the door bodies when they are closed, the existing refrigerator is provided with a sealing strip on the side of any one of the two door bodies close to the other; when the two door bodies are closed, the sealing strip on any one of the two door bodies is sealed with the sealing strip on the other; that is, when the two door bodies are closed, the two sealing strips are squeezed in the gap between the two door bodies to effectively seal the space between the two door bodies and the box body to prevent cold air from overflowing.

[0003] The hinge structure of refrigerator doors is mostly single-axis. When one door is opened, the sealing strips on the two doors are tightly squeezed when closed. The opened door will drive the other door to open, resulting in an increase in the opening area of ​​the access port, an increase in the amount of cold overflow, and an increase in power consumption. Summary of the Invention

[0004] The present invention solves one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the present application aims to provide a refrigerator whose hinge structure allows the door to move outward a certain distance when opened.

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

[0007] The box body has a first side wall and a second side wall that are oppositely arranged;

[0008] A hinge is provided on the box body and is close to the side wall of the first body; the hinge is provided with a guide round block and a hinge shaft fixed to the guide round block; wherein the hinge is provided with a first mating portion at one end away from the side wall of the first body;

[0009] The door body comprises a door front wall away from the box body when the door body is closed, and a door side wall close to the hinge and connected to the door front wall;

[0010] A guide groove is provided at the end of the door body close to the hinge; the guide round block is installed in the guide groove and cooperates with two opposite groove walls of the guide groove;

[0011] A positioning groove is provided on the bottom of the guide groove; the hinge shaft cooperates with the positioning groove;

[0012] a locking block fixed to the end of the door body and located on a side of the guide groove away from the door side wall; the locking block has a second matching portion for matching with the first matching portion to achieve locking and unlocking of the door body and the box body;

[0013] 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 move a distance away from the side wall of the second body while rotating.

[0014] In some embodiments of the present application, the guide groove includes a first guide bar and a second guide bar arranged in parallel, the first guide bar is located on the side of the second guide bar away from the door side wall, and the positioning groove is located between the first guide bar and the second guide bar, and extends in the direction from the first guide bar to the second guide bar; the first guide bar and the second guide bar are both matched with the guide circle block.

[0015] In some embodiments of the present application, the first matching portion is a stop portion, and the second matching portion is configured as a lock hook; when the door body is closed, the lock hook is locked with the stop portion; the lock hook includes a root connection portion and a hook portion; one end of the root connection portion is fixed to the door body, and the other end is connected to the hook portion.

[0016] In some embodiments of the present application, the door body is provided with a first protrusion and a second protrusion, the first protrusion is located on a side of the second protrusion close to the door front wall and the door side wall; and the first protrusion and the second protrusion jointly define a gap groove;

[0017] A plug-in board is formed at the root connection portion, and the plug-in board is installed in the gap groove.

[0018] In some embodiments of the present application, the center trajectory line of the guide groove is recorded as the second trajectory line K, and the second trajectory line K is perpendicular to the front wall of the door; the door body includes a rear door wall arranged opposite to the front door wall, and the positioning groove is close to the rear door wall relative to the front door wall.

[0019] In some embodiments of the present application, the central axis of the hinge axis is recorded as the positioning central axis P, and the central axis of the guide circle is recorded as the guide central axis I; in the projection of the top wall of the box, the radius of the circular cross-section of the guide circle passing through the positioning central axis P is recorded as the axis radius IA, and the length of the line segment IP is greater than the length of the line segment AP.

[0020] In some embodiments of the present application, the plane passing through the guide center axis I and parallel to the side wall of the first body is recorded as the first reference plane M1; in the projection of the top wall of the box, the angle between the axial radius IA and the first reference plane M1 is recorded as the first angle θ; wherein, the first angle θ is any value between 25° and 35°.

[0021] In some embodiments of the present application, in the projection of the top wall of the box body, the axial radius IA is located on the side of the first reference plane M1 away from the side wall of the first body, and is located on the side close to the box body of the plane passing through the guide center axis I and parallel to the front wall of the door when the door body is closed.

[0022] In some embodiments of the present application, the center trajectory line of the positioning groove is recorded as a first trajectory line S, and the distance between the 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 the 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.

[0023] In some embodiments of the present application, a door seal is provided on the door wall surface of the door body opposite to the door front wall; wherein the edge of the door seal close to the door side wall and away from the door front wall is marked as a side seal edge H;

[0024] The box body defines a heat-insulated storage chamber, the storage chamber having an access opening closed or opened by the door body; the plane on which the access opening is located is denoted as a second reference plane M2; the plane on which the side wall of the first body 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 of the door body relative to the box body, and are reference planes that remain stationary relative to the box body;

[0025] During the process of the door body opening from the closed state to G5, the side sealing edge H always keeps moving in the direction away from the second reference plane M2 and the reference plane M0;

[0026] The door body is opened from G5 to the maximum angle G max During the process, the side sealing edge H moves away from the second reference plane M2 and close to the reference plane M0; wherein, G max >G5>90°.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are:

[0028] The present invention provides a refrigerator, which includes a box body with a first side wall and a second side wall arranged opposite to each other, a hinge arranged on the box body and close to the first side wall, and a door body with a door front wall and a door side wall; a guide round block and a hinge shaft fixed to the guide round block are provided on the hinge, and a first matching portion is provided at an end of the hinge away from the first side wall; a guide groove is provided at the end of the door body close to the hinge, the guide round block is installed in the guide groove and matches with the two opposite groove walls of the guide groove; a positioning groove is provided on the bottom of the guide groove, and the hinge shaft matches with the positioning groove; a locking block is fixed at the end of the door body and located on the side of the guide groove away from the door side wall, the locking block has a second matching portion for matching with the first matching portion to achieve locking and unlocking of the door body and the box body; 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 move outward a distance while rotating; the present invention effectively prevents the opening of one door of the double-door refrigerator from causing the other door to open when one door is opened, thereby increasing the opening area of ​​the refrigerator, thereby reducing cold overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 is a perspective view of a refrigerator of the present invention;

[0031] Figure 2 is a top view of the refrigerator of the present invention;

[0032] Figure 3 yes Figure 2 Schematic diagram of the local structure;

[0033] Figure 4 Schematic diagram of the exploded structure of the hinge at the upper right corner of the refrigerator of the present invention;

[0034] Figure 5 is a schematic diagram of the exploded structure of the hinge at the upper right corner of the refrigerator of the present invention from another perspective;

[0035] Figure 6 Schematic diagram of the structure of the hinge at the upper end of the door of the refrigerator of the present invention;

[0036] Figure 7 1 is a schematic structural diagram of the hinge at the upper end of the door of the refrigerator of the present invention from another perspective;

[0037] Figure 8 This is a view of the hinge of the refrigerator door of the present invention when it is in a closed state;

[0038] Figure 9 This is a view of the hinge of the refrigerator door of the present invention when it is opened to G1;

[0039] Figure 10 This is a view of the hinge of the refrigerator door of the present invention when it is opened to G2;

[0040] Figure 11 This is a view of the hinge of the refrigerator door of the present invention when it is opened to G3;

[0041] Figure 12 This is a view of the hinge of the refrigerator door of the present invention when it is opened to G4;

[0042] Figure 13 This is a view of the hinge of the refrigerator door of the present invention when it is opened to G5;

[0043] Figure 14 The door of the refrigerator of the present invention is opened to G max View at the hinge when >90°;

[0044] Figure 15 The door of the refrigerator of the present invention is opened from the closed state to G max Schematic diagram of the movement of the guide circle relative to the guide groove and the hinge shaft relative to the positioning groove during the 90° process;

[0045] Figure 16 Schematic diagram of the relative positions of the guide round block relative to the guide groove and the hinge shaft relative to the positioning groove when the door of the refrigerator of the present invention is opened to G1 relative to the closed state;

[0046] Figure 17 Schematic diagram of the positional relationship between the guide round block and the guide groove, and the hinge shaft and the positioning groove when the door of the refrigerator of the present invention is opened to G2 relative to the closed state;

[0047] Figure 18 Schematic diagram of the positional relationship between the guide round block and the guide groove, and the hinge shaft and the positioning groove when the door of the refrigerator of the present invention is opened to G3 relative to the closed state;

[0048] Figure 19 Schematic diagram of the positional relationship between the guide round block and the guide groove, and the hinge shaft and the positioning groove when the door of the refrigerator of the present invention is opened to G4 relative to the closed state;

[0049] Figure 20 Schematic diagram of the positional relationship between the guide round block and the guide groove, and the hinge shaft and the positioning groove when the door of the refrigerator of the present invention is opened to G5 relative to the closed state;

[0050] Figure 21 The door of the refrigerator of the present invention is opened to G relative to the closed state. maxSchematic diagram of the positional relationship between the guide circle and the guide groove, and the hinge shaft and the positioning groove when the angle is greater than 90°;

[0051] Figure 22 Schematic diagram of the movement of the guide block relative to the guide groove and the hinge shaft relative to the positioning groove during the process of opening the door of the refrigerator from the closed state to G3;

[0052] Figure 23 The door of the refrigerator of the present invention is opened from G3 to G max Schematic diagram of the movement of the guide circle relative to the guide groove and the hinge shaft relative to the positioning groove during the 90° process;

[0053] Figure 24 2 is a schematic diagram of the coordination structure of two doors arranged opposite to each other when the doors of the refrigerator of the present invention are in a closed state;

[0054] Figure 25 Schematic diagram of the cooperation of two side sealing strips when the door of the refrigerator of the present invention is in a closed state;

[0055] Figure 26 Schematic diagram of the relative positions of the two side sealing strips when the door of the refrigerator of the present invention begins to open;

[0056] Figure 27 1 is a comparison diagram of the relative position of the door of the refrigerator of the present invention when it is rotated and opened to G1 and the relative position of the door when it is rotated and opened only around the guide center axis to G1;

[0057] Figure 28 1 is a comparison diagram of the relative position of the door of the refrigerator of the present invention when it is rotated and opened to G2 and the relative position of the door when it is rotated and opened only around the guide center axis to G2;

[0058] Figure 29 3. This is a comparison diagram of the relative position of the door of the refrigerator of the present invention when it is rotated and opened to G3 and the relative position of the door when it is rotated and opened only around the guide center axis to G3;

[0059] Figure 30 1 is a comparison diagram of the relative position of the door of the refrigerator of the present invention when it is rotated and opened to G4 and the relative position of the door when it is rotated and opened only around the guide center axis to G4;

[0060] Figure 31 1 is a comparison diagram of the relative position of the door of the refrigerator of the present invention when it is rotated and opened to G5 and the relative position of the door when it is rotated and opened only around the guide center axis to G5;

[0061] Figure 32 The door of the refrigerator of the present invention is rotated to open to G maxWhen the door is opened to G, its relative position to the box body and the door body only rotates around the guide center axis max A comparison diagram of its relative position with the box;

[0062] Figure 33 3. This is a comparison diagram of the movement of the first side edge W and the side sealing edge H during the rotational opening process of the refrigerator door of the present invention and during the rotational opening process of the door body only around the guide central axis;

[0063] Figure 34 This is a structural schematic diagram of a hinge for a refrigerator of the present invention;

[0064] Figure 35 This is a schematic diagram of an exploded structure of another structure of a hinge provided at the upper end of the door of the refrigerator of the present invention;

[0065] Figure 36 yes Figure 35 Schematic diagram of the decomposed structure of the middle hinge from another perspective;

[0066] Figure 37 This is a schematic diagram of the exploded structure of a hinge provided at the lower end of the door of the refrigerator of the invention;

[0067] Figure 38 yes Figure 31 Schematic diagram of the assembly structure of the hinge provided at the lower end of the door body;

[0068] Figure 39 This is an exploded structural diagram of another structure of the hinge provided at the lower end of the door body of the refrigerator of the invention;

[0069] Figure 40 yes Figure 39 A structural diagram of the hinge provided at the lower end of the door body from another perspective;

[0070] Figure 41 It is an exploded structural diagram of another structure of the hinge provided at the lower end of the door body of the refrigerator of the invention;

[0071] Figure 42 It is a schematic diagram of the assembly structure of the locking block at the lower end of the door body and the door body of the refrigerator of the present invention;

[0072] Figure 43 It is a schematic diagram of the exploded structure of the locking block at the lower end of the door body and the door body of the refrigerator of the present invention;

[0073] Figure 44 It is a structural schematic diagram of the locking block of the refrigerator of the present invention;

[0074] Figure 45 Schematic diagram of the relative positions of the hook portion and the stop portion when the door of the refrigerator of the present invention is in a closed state;

[0075] Figure 46Schematic diagram of the relative positions of the hook portion and the stop portion from another perspective when the door of the refrigerator of the present invention is in a closed state;

[0076] Figure 47 Schematic diagram of the relative positions of the hook portion and the stop portion when the door of the refrigerator of the present invention is opened;

[0077] Figure 48 1 is a schematic diagram of the relative positions of the hook portion and the stop portion when the door of the refrigerator of the present invention is opened, from another perspective;

[0078] Figure 49 Schematic diagram of the relative positions of the hook portion and the stop portion when the door of the refrigerator of the present invention is opened to 90 degrees;

[0079] Figure 50 2 is a schematic diagram of the relative positions of the hook portion and the stop portion when the door of the refrigerator of the present invention is opened to 90 degrees from another viewing angle;

[0080] Figure 51 2 is a schematic diagram of the relative positions of the hook portion and the stop portion when the door of the refrigerator of the present invention is opened to the maximum angle;

[0081] Figure 52 2 is a schematic diagram of the relative positions of the hook portion and the stop portion when the door of the refrigerator of the present invention is opened to the maximum angle, from another viewing angle;

[0082] Figure 53 2 is a schematic diagram of the exploded structure of the door lower end mounting block and the door body in another embodiment of the refrigerator of the present invention;

[0083] Figure 54 yes Figure 53 Another perspective structural diagram of the middle mounting block;

[0084] Figure 55 yes Figure 53 Schematic diagram of the assembly structure of the middle mounting block and the door body.

[0085] In the above figures: box body 10; door body 30; door front wall 31; door side wall 32; door rear wall 33; first side edge W; side sealing edge H; hinge plate 40; connecting portion 401; extension portion 402; door seal 2; side sealing strip 3; hinge shaft 4; guide round block 5; positioning center axis P; guide center axis 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 endpoint 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; pit 55; first protrusion 34; second protrusion 35; clearance groove 36; accommodating groove 37; door end cover 38; stop portion 41; hooking gap 42; accommodating chamber 39; locking hook 82; root connection portion 83; hooking portion 84; plug-in plate 85; card protrusion 371; groove bottom 70; circumferential groove wall 71; notch 72; plate body 81; card interface 86. DETAILED DESCRIPTION

[0086] The present invention is described in detail below by way of exemplary embodiments, but it should be understood that elements, structures, and features of one embodiment may be beneficially combined in other embodiments without further description.

[0087] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0088] The terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," "third," "fourth," or "fifth" may explicitly or implicitly include one or more of such features.

[0089] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. In the accompanying drawings, the side of the refrigerator facing the user when in use is defined as the front side, and the side opposite thereto is defined as the rear side.

[0090] Figures 1-33 This is a schematic diagram of the door opening process in this application; Figure 1 The refrigerator includes a cabinet 10 having a storage chamber, a door 30 connected to the cabinet 10 to open and close the storage chamber, and a refrigeration device for supplying cold air to the storage chamber. The refrigeration device is a prior art and will not be described in detail herein.

[0091] The housing 10 includes an inner liner defining a storage compartment, an outer shell connected to the outer side of the inner liner to form the appearance of a refrigerator, and an insulating layer disposed between the inner liner and the outer shell to insulate the storage compartment. The housing 10 defines a plurality of storage compartments. In this embodiment, the plurality of storage compartments includes a refrigerator compartment and a freezer compartment located below the refrigerator compartment.

[0092] The front end of the storage chamber is formed with an access opening for placing food into or taking food out of the storage chamber; a rotatable door 30 is provided on the box body 10 to open or close the access opening of the storage chamber. Specifically, the door 30 is rotatably connected to the box body 10 by a hinge located at the top and a hinge located at the bottom.

[0093] The housing 10 includes a first side wall and a second side wall (i.e., the left and right side walls of the housing 10) that are disposed opposite each other. The hinge is disposed on the housing 10 and adjacent to the first side wall. The door 30 includes a front wall 31 that is spaced away from the housing 10 when the door 30 is closed, a side wall 32 that is adjacent to the hinge and connected to the front wall 31, and a rear wall 33 that is adjacent to the housing 10 and opposite to the front wall 31. For example, if the hinge is located on the right side of the housing 10, when the door 30 is closed, the right side of the door 30 will be the side wall 32. If the hinge is located on the left side of the housing 10, when the door 30 is closed, the left side of the door 30 will be the side wall 32.

[0094] 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; during specific processing settings, based on the setting of a rounded transition at the intersection of the door front wall 31 and the door side wall 32, a curved surface will be formed; for the convenience of description in this application, a straight line on the curved surface extending along the length direction of the door body 30 and parallel to the theoretical first side edge W is used to represent the first side edge W. In addition, the plane passing through the center of mass of the door body 30 and parallel to the door front wall 31 is recorded 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 center of mass plane F is determined with the geometric center of the door body 30 as the center of mass for description.

[0095] A door seal 2 is provided on the rear wall 33 of the door body 30. When the door body 30 is closed, the door seal 2 abuts against the front face of the cabinet surrounding the access opening, effectively sealing the door body 30 and the cabinet 10. This ensures that the door seal 2 seals the access opening and prevents cold air from escaping. In this embodiment, the door seal 2 includes side seals adjacent to the door side walls 32. The edge of the door seal 2 (side seal) adjacent to the door side walls 32 and distal to the door front wall 31 is designated as the side seal edge H.

[0096] Reference Figures 2 to 7 The hinge comprises a guide block 5 and a hinge shaft 4 fixed to and perpendicular to the guide block 5. The guide block 5 is a flat plate with a circular cross-section. It should be noted that the circular cross-section of the guide block 5 includes a standard circle of constant radius as defined by mathematical definition, as well as non-standard circles that deviate from the standard circle due to manufacturing or assembly errors or slight deformation, but still possess circular characteristics and can be approximated as a circle.

[0097] A guide groove 7 is provided at the end of the door body 30 near the hinge, and the extension direction of the guide groove 7 is consistent with the direction from the door front wall 31 to the door rear wall 33; that is, the guide groove 7 extends from the door front wall 31 to the door rear wall 33. In this embodiment, the guide groove 7 is jointly defined by a first guide bar 8 and a second guide bar 9 arranged in parallel; a positioning groove 6 is provided in the area between the first guide bar 8 and the second guide bar 9; that is, the positioning groove 6 is located at the bottom of the guide groove 7. The positioning groove 6 is arranged along the direction from the first guide bar 8 to the second guide bar 9. In addition, the first guide bar 8 and the second guide bar 9 both extend in the direction from the door front wall 31 to the door rear wall 33, and the first guide bar 8 is located on the side of the second guide bar 9 away from the door side wall 32. In this embodiment, the first guide bar 8 and the second guide bar 9 are both parallel to the door side wall 32.

[0098] It should be noted that the guide groove 7 is not limited to the form defined by the first guide bar 8 and the second guide bar 9 above. It can directly form a concave guide groove 7 at the end of the door body, and the guide circle 5 cooperates with the two opposite groove walls of the guide groove 7 (the two side walls parallel to the door side wall 32), and the positioning groove 6 is formed on the bottom of the guide groove 7.

[0099] Among them, 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 and the two opposite groove walls of the guide groove 7 are always clearance-fitted. It can be set that the clearance of the clearance fit is set within the range of 0-0.3mm; that is, it includes the principle of contact fit, and also includes the tiny gap that exists due to reasons such as product manufacturing and processing. As a configurable 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 bar 8 and the second guide bar 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 bar 8 and the second guide bar 9. In the process of the door body 30 rotating 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.

[0100] It should be noted here that the embodiment of the present application is only described by taking the above-mentioned hinge shaft 4 and guide round block 5 as being arranged on the hinge, and the positioning groove 6 and guide groove 7 as being arranged on the door body 30 as an example.

[0101] The hinge includes a hinge plate 40 fixedly connected to the box body 10, and the hinge plate 40 includes: a connecting portion 401 connected to the box body 10, and an extending portion 402 extending forward from the connecting portion 401 and having a horizontal plate shape. The connecting portion 401 can be fastened to the top wall of the box body 10 by fasteners such as screws, pins and bolts.

[0102] Specifically, the hinge at the upper end of the door body 30 includes a hinge plate 40 connected to the top wall of the housing 10, with a hinge shaft 4 and a guide block 5 located on the hinge plate 40. The hinge plate 40, hinge shaft 4, and guide block 5 can be integrally formed; however, they can be provided separately and assembled together. The hinge shaft 4 and guide block 5 are formed on an extension 402, with the hinge shaft 4 extending vertically downward.

[0103] For the hinge at the lower end of the door body 30, the connecting portion 401 is connected to the front end surface of the box body 10, and the extending portion 402 extends to a side away from the front end surface of the box body 10. The hinge shaft 4 and the guide round block 5 are on the extending portion 402, and the hinge shaft 4 extends upward.

[0104] Corresponding to the position of the hinge plate 40, positioning slots 6 and guide slots 7 are provided at the upper and lower ends of the door body 30. The two positioning slots 6 and the two guide slots 7 at the upper and lower ends of the door body 30 correspond vertically, allowing the hinge at the upper end of the door body 30 to move synchronously with the hinge at the lower end.

[0105] In this embodiment, Figure 2-Figure 7 As shown, see Figure 8The plane where the side surface (first body side wall) of the box body 10 close to the hinge plate 40 is located is defined as the reference plane M0. The side of the reference plane M0 away from the inner cavity of the storage chamber is recorded as the outer side, and the opposite side close to the storage chamber is recorded as the inner side.

[0106] The refrigerator includes two door bodies 30 arranged opposite to each other, and the two door bodies 30 arranged opposite to each other cooperate to open or close the access opening. A side sealing strip 3 is provided on the side of any one of the two door bodies 30 away from its door side wall 32; wherein, when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is sealed with the side sealing strip 3 on the other; that is, when the two door bodies 30 are closed, the two side sealing strips 3 are squeezed into the gap between the two door bodies 30 to effectively seal the space between the two door bodies 30 and the cabinet to prevent cold air from overflowing. When the refrigerator is provided with a traditional hinge (a hinge that is simply rotated to open), when one of the door bodies 30 is opened, due to the tight squeezing of the side sealing strips 3 on both sides in the closed state, the opened door body 30 will drive the other door body 30 to open when it is opened, resulting in an increase in the opening area of ​​the access opening, an increase in the amount of cold overflow, and an increase in power consumption; and the temperature in the storage room is high, affecting the freshness of food. To this end, in the present invention, a track-changing mechanism is formed by the cooperation between the hinge and the door body 30, so that the opened door body 30 moves outward during the opening process, thereby preventing it from driving the other door body 30 to be opened.

[0107] In this embodiment, the positioning groove 6 is a curved groove; the distance between the positioning groove 6 and the door front wall 31 increases and then decreases along the upper edge of the door body 30 from the end away from the door side wall 32 to the direction close to the door side wall 32. 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 body 10, the projection line where the door front wall 31 is located is recorded as the x-axis, the projection line where the inner wall of the guide groove 7 away from the door side wall 32 (the first guide bar 8) is located is recorded as the y-axis, and the intersection point of the x-axis and the y-axis is recorded as the origin O(0, 0); wherein, the direction from the first guide bar 8 to the second guide bar 9 of the x-axis is positive; and the direction from the door front wall 31 to the door rear wall 33 of the y-axis is positive.

[0108] The center trajectory of the positioning groove 6 is denoted as the first trajectory S. In this coordinate system, the center first trajectory S is denoted as the function f(x). f(x) lies in the first quadrant of the xOy coordinate system. As a configurable method, 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.

[0109] As a configurable method, the positioning groove 6 includes a first groove section away from the door side wall 32 and a second groove section closer to the door side wall 32; wherein, along the upper edge of the door body 30, from the end away from the door side wall 32 to the direction closer to the door side wall 32, the distance between the first groove section and the door front wall 31 gradually increases, and the distance between the second groove section and the door front wall 31 gradually decreases. The first groove section and the second groove section are connected by a smooth transition. The center trajectory lines corresponding to the first groove section and the second groove section are respectively recorded as the first trajectory section and the second trajectory section; wherein, the first trajectory section and the second trajectory section are smoothly connected to form the first trajectory line S.

[0110] It is configurable that both the first and second groove segments are arc grooves. That is, both the first and second track segments are arc-shaped. As a configurable method, the first and second track segments are tangent to each other; that is, the first and second groove segments are tangent to each other, thereby forming a smooth positioning groove 6.

[0111] As another possible setting method, a transition groove section is set to connect the first groove section and the second groove section; the first groove section, the transition groove section and the second groove section are smoothly transitionally connected; wherein, the center trajectory line of the transition groove section is recorded as the transition trajectory section; it can be set that the first trajectory section, the transition trajectory section and the second trajectory section are tangent; that is, the first groove section and the second groove section are both tangent to the transition groove section to form a smooth positioning groove 6.

[0112] The first trajectory line S is a curve defined by the shape of the positioning groove 6, wherein the first trajectory line S extends from the side away from the door side wall 32 to the 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 this embodiment, the guide groove 7 is linear; that is, the guide groove 7 is composed of a section of linear groove. The center line of the extension direction of the guide groove 7 is recorded as the second trajectory line K; since the guide groove 7 is always tangent to the guide circular block 5, the guide center axis I of the guide circular block 5 always moves along the second trajectory line K. It should be noted that the descriptions in this embodiment are all standard theoretical settings, which include structural settings that deviate from the standard theoretical settings due to processing or assembly errors or slight deformations but still have this characteristic.

[0113] In this embodiment, the hinge shaft 4 cooperates with the positioning groove 6, and the guide block 5 cooperates with the guide groove 7, so that the door body 30 can move outward (away from the side wall of the second body) a certain distance while rotating. This prevents the side sealing strips 3 installed on the two opposing door bodies 30 from interfering with each other when the door body 30 is opened, effectively preventing the other door body 30 from being driven by the other door body 30 when only one of the two door bodies 30 is opened, thereby increasing cooling loss. As another arrangement, the door body 30 moves forward (away from the box body) a certain distance while opening and moving outward, so as to avoid squeezing the door sealing strip 2 when the door body 30 is opened, thereby preventing the door body 30 and the box body 10 from interfering with each other and affecting the opening of the door body 30.

[0114] Since the positioning groove 6 and the hinge shaft 4, as well as the guide groove 7 and the guide round block 5, are in a relative motion relationship, if the door body 30 is opened, with the positioning groove 6 and the guide groove 7 as stationary reference objects, it is equivalent to the hinge shaft 4 moving in the positioning groove 6 and the guide round block 5 moving in the guide groove 7. For the sake of convenience in description, this application first uses the positioning groove 6 and the guide groove 7, which are relatively fixed, as reference objects, and the hinge shaft 4 and the guide round block 5 moving relative to the reference objects for explanation.

[0115] In addition, in this embodiment, the central axis of the hinge shaft 4 is recorded as the positioning center axis P, and the central axis of the guide circular block 5 passing through the center of its cross section is recorded as the 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 recorded as IA; wherein A is the intersection 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 this embodiment, in the projection of the top wall of the box body 10, the length of the line segment IP is greater than the line segment AP, which effectively increases the limiting effect of the hinge shaft 4 and the guide circular block 5 on the door body 30 and increases the connection stability between the door body 30 and the box body 10; wherein, the line segment IP is recorded as the axis line segment IP, the radius IA is recorded as the axis radius IA, and A is recorded as the axis radius point A. As a configurable method, IP / AP is any value from 2 to 3.

[0116] As an implementable method, the plane passing through the guide center axis I and parallel to the reference plane M0 is recorded as the first reference plane M1; in the projection of the top wall of the box body 10, the axial radius IA is located on the side of the first reference plane M1 away from the reference plane M0, and is located on the side of the plane passing through the guide center axis I and parallel to the door front wall 31 when the door body is closed, which is close to the box body 10; that is, from I to A, the distance between IA and the first reference plane M1 increases monotonically and linearly. In this embodiment, the positioning center axis P is located on the side of the guide center axis I close to the access port, which increases the limiting effect of the hinge axis 4 and the guide circle 5 on the door body 30, and increases the connection stability between the door body 30 and the box body 10. In addition, in this embodiment, the positioning center axis P is located on the side of the guide center axis I close to the access port and away from the side wall of the first body. The above arrangement effectively increases the angular range of outward movement of the door body 30 during rotation, so that the door body 30 can maintain a trend of outward movement within a large angular range during rotation. On the one hand, it can avoid mutual interference between the side sealing strips 3 installed on the two opposite door bodies 30, thereby reducing cooling loss; on the other hand, it can reduce the lateral obstruction of the door seal 2 arranged on the door rear wall 33 to the access port, thereby increasing the lateral size of the drawer installed in the storage room and increasing the space utilization rate of the storage room; in addition, the hinge shaft 4 that cooperates with the positioning groove 6 is located on the side of the guide center axis I close to the access port and away from the side wall of the first body, and the hinge shaft 4 cooperates with the guide circle 5 to enhance the connection firmness of the door body 30 close to the box body 10, effectively enhancing the connection stability of the door body, and also increasing the stability of the door body 30 when opening, reducing shaking, and improving the user experience.

[0117] In some embodiments of the present application, in the projection of the top wall of the box body 10, the angle between the axial radius IA and the first reference plane M1 is recorded as the first angle θ, and the first angle θ is any value between 25° and 35°; it can be set, and in this embodiment, θ=30°.

[0118] In some embodiments of the present application, the radius of the hinge shaft 4 is recorded as r, and the radius of the guide circle 5 is recorded as R; wherein r / R is any value between 0.7 and 0.8; the setting of the above radius, on the one hand, reasonably utilizes the thickness space of the door body 30 to arrange the positioning groove 6 and the guide groove to achieve the purpose of opening the door body 30 to the maximum angle; on the other hand, it ensures the strength of the hinge shaft 4 and the guide circle 5; in addition, the hinge shaft 4 cooperates with the positioning groove 6, and the guide circle 5 cooperates with the guide groove 7, which increases the stability of the opening of the door body 30.

[0119] like Figure 8-Figure 23As shown, 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 S. In this embodiment, the hinge plate 40 is fixedly connected to the guide block 5, and the movement of the guide 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 box body 10 relative to the door body 30. Among them, the movement of the door body 30 relative to the box body 10 is equivalent to the relative movement of the two within the plane where the top wall of the box body 10 is located (or within a plane parallel to the top wall of the box body 10); that is, the movement of the door body 30 relative to the box body 10 can be attributed to relative movement within a two-dimensional plane. Within the plane where the top wall of the box body 10 is located, the movement of the axis line segment IP relative to the guide groove 7 is equivalent to the movement of the axis line segment IP relative to the second trajectory K, and is also equivalent to the movement of the guide block 5 relative to the guide groove 7, and is also equivalent to the movement of the box body 10 relative to the door body 30.

[0120] In the following description, for ease of explanation, the movement of the positioning center axis P along the first trajectory line S is selected to represent the movement of the hinge axis 4 along the positioning slot 6, and the movement of the axis line segment IP relative to the second trajectory line K is selected to represent the movement of the guide block 5 relative to the guide slot 7; that is, the movement of the axis line segment IP relative to the second trajectory line K represents the movement of the box body 10 (hinge plate 40) relative to the door body 30. The second trajectory line K includes a first guide endpoint K1 near the door front wall 31 and a second guide endpoint K2 near the door rear wall 33; the second trajectory line K extends in a straight line from the first guide endpoint K1 to the second guide endpoint K2. In some embodiments of the present application, the second trajectory line K is perpendicular to the door front wall 31 to increase the efficiency of the door body 30 moving outward and forward relative to the box body 10.

[0121] like Figure 8-Figure 23 As shown, 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 along a curve from the starting positioning point P0 to the side close to the door side wall 32 to the sixth positioning point P6, and the distance between the first trajectory line S and the door front wall 31 first increases and then decreases.

[0122] In this embodiment, the first trajectory line S is closer to the door rear wall 33 relative to the door 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 door front wall 31 and away from the door side wall 32. In this embodiment, the positioning groove 6 is close to the door rear wall 33 relative to the door front wall 31, so that the door body 30 is positioned by the hinge shaft 4 at the position close to the door rear wall 33 and close to the door side wall 32 when it is opened, which effectively improves the balance of force, makes the mechanical stability of the door body 30 good when opening, and can ensure the smoothness and stability of the movement of the door body 30; at the same time, it also ensures the strength of the door body 30 and the positioning groove 6. In this embodiment, the distance between the starting positioning point P0 and the door front wall 31 is recorded as D0, the distance between the sixth positioning point P6 and the door front wall 31 is recorded as D1, and the distance between the sixth positioning point P6 and the door rear wall 33 is recorded as D2. Among them, D0≥D1>D2; that is, it can be set that D2:D1∈[1 / 2,1). The above settings can make the force more balanced, match the user's usage habits, and enhance the stability and smoothness of the door body 30 when opening. It can be set that, in the projection of the top wall of the box body 10, the middle plane between the door front wall 31 and the door rear wall 33 is recorded as the middle plane (in this embodiment, the middle plane and the centroid plane F are the same plane), and the distance between the middle plane and the door front wall 31 is equal to the distance between it and the door rear wall 33; the positioning groove 6 is located in the area between the middle plane and the door rear wall 33. In this embodiment, 14mm≤D2≤18mm, in the current example, D2=16mm, D1=32mm is set. The thickness of the door body 30 is between 45mm and 55mm.

[0123] In this embodiment, the positioning groove 6 is curved and protrudes toward the door rear wall 33. The centerline of the guide groove 7 along its extension direction (second trajectory K) is parallel to the door side wall 32. This allows significant displacement in the inward-outward direction (laterally / across the refrigerator width) when the hinge shaft 4 drives the guide knob 5 relative to the positioning groove, causing the door body 30 to move outward. Specifically, in this embodiment, the door front wall 31 is perpendicular to the door side wall 32. The first guide bar 8 and the second guide bar 9 are both perpendicular to the door front wall 31, that is, the second trajectory K is perpendicular to the door front wall 31. In this embodiment, the second trajectory K is perpendicular to the door front wall 31 and parallel to the door side wall 32. The first trajectory S extends from the starting positioning point P0 along a curve that protrudes toward the door rear wall 33 to the sixth positioning point P6. This arrangement effectively utilizes the thickness of the door body 30, both facilitating smoother rotation and movement of the guide knob 5 relative to the guide groove 7 and allowing the door body 30 to move outward and forward a certain distance during the rotation and opening process.

[0124] The above positioning groove 6 effectively limits the movement of the hinge shaft 4, and the guide groove 7 effectively limits the movement of the guide circle 5, so that the guide circle 5 cooperates with the hinge shaft 4 to move in the guide groove 7, thereby making the door body 30 move outward and forward a certain distance during the opening process of the door body 30, and ensuring the stability and smoothness of the door body 30 rotating to open.

[0125] In some embodiments of the present application, the two endpoints of the positioning groove 6 are located near the centroid plane F; it can be set that the distance between the two endpoints of the positioning groove 6 and the centroid plane F is less than 1 cm; so that the door body 30 can effectively support the door body 30 in the closed state and the state opened to the maximum angle, thereby improving the stability of the door body 30 in maintaining this state.

[0126] like Figure 8 As shown, in some embodiments of the 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 is simultaneously coordinated with the first guide bar 8 and the second guide bar 9. It should be noted that in the present application, during the entire process of opening the door body 30, the guide round block 5 is always coordinated with the first guide bar 8 and the second guide bar 9; within the projection of the plane where the top wall of the box body 10 is located,

[0127] In this embodiment, the maximum opening angle of the refrigerator is G max The door body 30 is opened from the closed state to the maximum angle G max During the process, when the door body 30 rotates and opens to a specific angle, the position of the hinge shaft 4 relative to the positioning groove 6 and the position of the guide round block 5 relative to the guide groove 7 are specifically as follows:

[0128] in, Indicates the opening angle of the door 30. The opening angle when the door 30 is closed

[0129] like Figure 8 As shown, The door body 30 is in a 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 bar 8 and the second guide bar 9 at the same time. Figure 16 , When the guide block 5 is oriented, the guide center axis I, the positioning center point P, and the axis radius point A are located at I0, P0, and A0 in the guide groove 7, respectively.

[0130] like Figures 9-11 As shown, , the door body 30 rotates from the closed state to open to G3 (excluding the endpoint value); in the above opening process, the guide circle 5 cooperates with the first guide bar 8 and the second guide bar 9 at the same time; the positioning center axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S.

[0131] Above, the door body 30 opens at an angle of When the opening angle is , the matching relationship between the guide block 5 and the guide groove 7 is the same within the opening angle range, and the first guide bar 8 and the second guide bar 9 are always matched with the guide block 5; the movement trend of the positioning center axis P relative to the first track line S is the same. The difference is that: the opening angle is different, the matching point between the guide block 5 and the guide groove 7 is different, and the position of the positioning center axis P relative to the first track line S is different. When any one of the opening angles can represent the relative positions of the guide 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, Figure 9 As shown, State diagram when Figure 10 As shown, State diagram when ; Among them, 0°<G1<G2<G3; Or G2 can represent the coordination state within this range.

[0132] like Figure 9 As shown, when the door body 30 is opened G1, the positioning center axis P is located at the first positioning point P1 of the first trajectory line S, and the first positioning point P1 is located on the side of the starting positioning point P0 close to the door side wall 32 and away from the door front wall 31; see Figure 16 , When the guide block 5 is in the guide groove 7, the guide center axis I, the positioning center point P, and the axis radius point A are located at I1, P1, and A1 in sequence. Among them, I1 is located on the second trajectory line K and is located on the side of I0 away from the door front wall 31; that is, I1 is located on the side of I0 close to K2.

[0133] like Figure 10 As shown, when the door body 30 is opened G2, the positioning center axis P is located at the second positioning point P2 of the first trajectory line S, and the second positioning point P2 is located on the side of the first positioning point P1 close to the door side wall 32 and away from the door front wall 31; see Figure 17 , When the guide block 5 is in the guide groove 7, the guide center axis I, the positioning center point P, and the axis radius point A are located at I2, P2, and A2 in sequence. Among them, I2 is located on the second trajectory line K and is located on the side of I1 away from the door front wall 31; that is, I2 is located on the side of I1 close to K2.

[0134] like Figure 11 As shown, When the door 30 opens 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 circle 5 cooperates with the first guide bar 8 and the second guide bar 9 at the same time. In this embodiment, the third positioning point P3 is the point where the distance between the first trajectory line S and the door rear wall 33 is the smallest. That is, in the xOy coordinate system, the third positioning point P3 is the extreme value point of f(x). Combined with Figure 18 , When the guide block 5 is in the guide groove 7, the guide center axis I, the positioning center point P, and the axis radius point A are located at I3, P3, and A3 in the guide groove 7. Among them, I3 is located on the second trajectory line K and is located 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. Figure 15 , wherein I0, I1, I2, and I3 are all located on the second track line K and are arranged in sequence from the front door wall 31 to the rear door wall 33. In this embodiment, Figure 11 As shown, G3∈[48°, 52°] is any one of the values; that is, when the door body 30 is opened to about 50°, the positioning center point P moves to the third positioning point P3 on the first trajectory line S which is closest to the door rear wall 33.

[0135] like Figure 11-12 As shown, During the above opening process, the guide circle 5 cooperates with the first guide bar 8 and the second guide bar 9 at the same time; the positioning center axis P moves along the first trajectory line S toward the direction close to the door side wall 32 and the door front wall 31.

[0136] Above, the door body 30 opens at an angle of When the opening angle is , the matching relationship between the guide block 5 and the guide groove 7 is the same within the opening angle range, and the first guide bar 8 and the second guide bar 9 always match the guide block 5; the movement trend of the positioning center axis P relative to the first track line S is the same. The difference is that: the opening angle is different, the matching point between the guide block 5 and the guide groove 7 is different, and the position of the positioning center axis relative to the first track line S is different. In this way, the opening angle When any one of the opening angles can represent the relative positions of the guide 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, Figure 12 As shown, State diagram when .

[0137] When the door body 30 is opened 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; combined Figure 19 , When the guide block 5 is turned, the guide center axis I, positioning center point P, and axis radius point A are located at positions I4, P4, and A4 in the guide groove 7, respectively. I4 is located on the second trajectory line K and on the side of I3 away from the door front wall 31; that is, I4 is located on the side of I3 closer to K2. As an operative embodiment, G4 = 90°;

[0138] like Figure 12-14 As shown, When the door 30 is opened by rotating from G4 (G4 = 90°) to G max (> 90 °) process; during the above opening process, the guide circle 5 cooperates with the first guide bar 8 and the second guide bar 9; the positioning center axis P moves along the first trajectory line S toward the direction close to the door side wall 32 and the door front wall 31.

[0139] Above, such as Figure 12-14 As shown, the door body 30 opens at an angle of When the opening angle is , the matching relationship between the guide block 5 and the guide groove 7 is the same within the opening angle range, and the first guide bar 8 and the second guide bar 9 always match the guide block 5; the movement trend of the positioning center axis P relative to the first trajectory line S is the same. The difference is that: the opening angle is different, the matching point between the guide 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, the opening angle satisfies (G4, G max ), any one of the opening angles can represent that the door body 30 is opened to the corresponding interval (G4, G max ) when the guide block 5 and the guide groove 7, the relative position of the hinge shaft 4 and the positioning groove 6; specifically, as Figure 13 , The state diagram, It can represent the matching status within this range.

[0140] like Figure 13 As shown, when the door 30 is opened 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. Figure 20 , When the guide block 5 is positioned at the guide center axis I, the positioning center point P, and the axis radius point A, respectively, are located at positions I5, P5, and A5 within the guide groove 7. I5 is located on the second trajectory line K and on the side of I4 away from the door front wall 31; that is, I5 is located on the side of I4 closer to K2. G5 can be set to [100°, 105°].

[0141] like Figure 14 As shown, the door 30 is opened 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 close to the door side wall 32, that is, the positioning center axis P is located at the end point of the first trajectory line S close to the door side wall 32. Figure 21 , When the guide block 5 is positioned at the guide center axis I, the positioning center point P, and the axis radius point A, the guide block 5 is positioned at I6, P6, and A6 in the guide groove 7, respectively. I6 is positioned on the second trajectory line K and is positioned on the side of I5 away from the door front wall 31; that is, I6 is positioned on the side of I5 close to K2. As a configurable method, G max ∈[112°, 120°]. In this embodiment,

[0142] Among them, 0°<G1<G2<G3<G4<G5<G max The starting 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 toward the door sidewall 32. In this embodiment, the opening angles of the door body 30 are sequentially recorded as the first angle G1, the second angle G2, the third angle G3, the fourth angle G4, the fifth angle G5, the maximum angle G6, and the maximum angle G7. max .

[0143] The door body 30 opens from the closed state to the maximum angle G max During the process, the hinge shaft 4 moves relative to the positioning groove 6 toward the door side wall 32 , and the guide round block 5 moves relative to the guide groove 7 toward the door front wall 31 .

[0144] As can be seen from the above, during the entire process of the door body 30 opening, the two opposite groove walls of the guide groove 7 cooperate with the guide round block 5. From the perspective of the movement trend of the hinge shaft 4 relative to the positioning groove 6, When the hinge shaft 4 is located at the end of the positioning groove 6 away from the door side wall 32; When the hinge shaft 4 moves to the position where the positioning groove 6 and the door rear wall 33 are closest. When the hinge shaft 4 moves to the end of the positioning groove 6 close to the door side wall 32. That is, from the perspective of the movement trend of the hinge shaft 4 relative to the positioning groove 6, Open the door 30 from the closed state to G max The following describes the two stages from the perspective of the movement trend of the hinge shaft 4 relative to the positioning groove 6:

[0145] The first stage, combining Figure 16-18 ,like Figure 22 As shown, the door body 30 rotates from the closed state to open to G3 (<90°).

[0146] In the first stage, the door body 30 opens 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 toward 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, through the first positioning point P1 and the second positioning point P2, toward 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 circle 5 moves relative to the guide groove 7 from the starting guide point I0 along the second trajectory line K toward the second guide end point K2 (close to the door rear wall 33); specifically, the guide center axis I moves from the starting guide point I0 along the second trajectory line K, through the first guide point I1 and the second guide point I2, toward the door rear wall 33, to the third guide point I3.

[0147] 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 chamber is defined as the outer side, and the opposite side close to the storage chamber is defined as the inner side; this definition of the direction that conforms to user use is used as a reference for explanation.

[0148] During the first stage of opening of the door body 30 (0° to G3), the second trajectory line K is parallel to the door side wall 32. As the door body 30 rotates counterclockwise relative to the box body 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 where the access opening is located gradually decreases, while the angle between the second trajectory line K and the reference plane M0 gradually increases. That is, during this first stage of opening, relative to the box body 10, along the direction from the door rear wall 33 to the door front wall 31, the second trajectory line K extends toward a side away from the second body side wall and away from the access opening. That is, during this first stage of opening, along the direction from the door rear wall 33 to the door front wall 31 (the direction from the second guide endpoint K2 to the first guide endpoint K1), the second trajectory line K always extends outward and forward. That is, in the process of the door body 30 opening from the closed state to G3, the second trajectory line K extends inwardly and backward along the direction from the first guide end point K1 to the second guide end point K2.

[0149] During the first stage of opening, with the positioning groove 6 and the guide groove 7 as reference points, when the door 30 opens from 0° to G3, the axis line segment IP rotates clockwise from I0P0 and moves inward and backward to I1P1, I2P2, and I3P3, respectively (I0P0→I1P1→I2P2→I3P3). Since the positioning groove 6 and the guide groove 7 are provided on the door 30, the axis line segment IP represents the movement of the guide block 5 provided on the housing 10. This indicates that, with the door 30 as reference point, 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 clockwise rotation relative to the door 30 and moves along the second trajectory line K toward the second guide endpoint K2; that is, the housing 10 maintains a clockwise and inward and backward movement relative to the door 30.

[0150] Due to the relative nature of movement, with the cabinet 10 as a reference (i.e., the guide block 5 as a reference), during the entire process of the door 30 opening from the closed state to G3, the door 30 (i.e., the positioning slot 6 and the guide slot 7) rotates counterclockwise relative to the cabinet 10 and moves toward the first guide endpoint K1; that is, the door 30 maintains a counterclockwise rotation relative to the cabinet 10 and moves outward and forward. In other words, during the entire process of the door 30 opening from the closed state to G3, the door 30 moves outward and forward relative to the cabinet 10 by a certain distance, thereby preventing the opened door 30 from causing another door 30 to open and causing cooling loss.

[0151] The second stage, such as Figure 23 As shown, the door body 30 is rotated from G3 to G max (G max >90°).

[0152] In the second stage, the door 30 opens from G3 through G4 and G5 to G max During this process, the positioning center axis P moves from the third positioning point P3 along the first trajectory line S toward the door sidewall 32 and the door front wall 31. Specifically, the positioning center axis P moves from the third positioning point P3 along the first trajectory line S toward the door sidewall and the door front wall 31, passing through the fourth positioning point P4, the fifth positioning point P5, and finally to the sixth positioning point P6.

[0153] During the second stage of opening, as the door 30 rotates and opens from G3 to G4 (G4 = 90°), the movement trend of the second trajectory K remains consistent with the movement trend during the first stage (not further detailed here). Specifically, as the door 30 rotates and opens from G3 to G4 (G4 = 90°), the second trajectory K extends outward and forward relative to the housing 10, along the direction from the second guide endpoint K2 to the first guide endpoint K1. Specifically, as the door 30 opens from the closed position to G3, the second trajectory K extends inward and rearward, along the direction from the first guide endpoint K1 to the second guide endpoint K2.

[0154] When the door body 30 is opened to 90°, the second trajectory line K is parallel to the plane where the pick-up and release port is located, and is perpendicular to the reference plane M0; that is, relative to the box body 10, along the direction from the first guide end point K1 to the second guide end point K2, the second trajectory line K extends from the outside to the inside.

[0155] When the door 30 is rotated from G4 (G4 = 90 degrees) to G max During the process, the second track line K starts to rotate counterclockwise from a state perpendicular to the reference plane M0, and the angle between the second track line K and the plane where the take-and-put port is located gradually increases and the angle between the second track line K and the reference plane M0 gradually decreases; that is, when the door body 30 rotates open from G4 (G4 = 90°) to G max During the process, relative to the box body 10, along 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), the second track line K always extends outward and backward. max During the process, the second trajectory line K extends inwardly and forwardly from the first guide end point K1 to the direction of the second guide end point K2.

[0156] During the second stage of opening, the positioning groove 6 and the guide groove 7 are used as references for analysis;

[0157] (1) Figure 19As shown, when the door 30 opens from G3 to G4, the axis line segment IP rotates clockwise from I3P3 and moves inward and backward to I4P4 (I3P3→I4P4). During this process, the second trajectory line K extends inward and backward along the direction from the first guide endpoint K1 to the second guide endpoint K2. In addition, since the positioning groove 6 and the guide groove 7 are provided on the door 30, the axis line segment IP represents the movement of the guide block 5 provided on the box 10. Therefore, it can be concluded that: with the door 30 as a reference, during the entire process of the door 30 opening from G3 to G4, the box 10 (i.e., the guide block 5) maintains clockwise rotation relative to the door 30 and moves along the second trajectory line K toward the second guide endpoint K2. Specifically, the guide center axis I moves from the third guide point I3 along the second trajectory line K toward the door rear wall 33 to the fourth guide point I4. In other words, the box 10 maintains a clockwise and inward and backward movement relative to the door 30.

[0158] According to the relative nature of motion, with the box 10 as a reference (i.e., the guide block 5 as a reference), during the entire process of the door 30 opening from G3 to G4, the door 30 (i.e., the positioning slot 6 and the guide slot 7) rotates counterclockwise relative to the box 10 and moves toward the first guide end point K1; that is, the door 30 maintains a counterclockwise rotation relative to the box 10 and moves outward and forward. In other words, during the entire process of the door 30 opening from the closed state to G3, the door 30 moves outward and forward relative to the box 10 by a certain distance.

[0159] (2) Figures 19-21 As shown, see Figure 15 and Figure 23 , door 30 opens from G4 to G max When the axial line segment IP rotates clockwise from I4P4 and moves inward and backward to I6P6 (I4P4→I5P5→I6P6). In this process, the first guide endpoint K1 points to the direction of the second guide endpoint K2, and the second trajectory line K extends inward and forward. In addition, since the positioning groove 6 and the guide groove 7 are set on the door body 30, the axial line segment IP represents the movement of the guide round block 5 set on the box body 10. It can be concluded that: with the door body 30 as a reference, the door body 30 opens from G4 to G max During this entire process, the box 10 (i.e., the guide knob 5) maintains a clockwise rotation relative to the door 30 and moves along the second trajectory K toward the second guide endpoint K2. Specifically, the guide center axis I moves from the fourth guide point I4 along the second trajectory K, through the fifth guide point I5, toward the door rear wall 33, to the sixth guide point I6. In other words, the box 10 maintains a clockwise, inward, and forward movement relative to the door 30.

[0160] According to the relativity of movement, with the box 10 as a reference (i.e., with the guide round block 5 as a reference), the door 30 opens from G4 to G maxDuring the whole process, the door body 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise relative to the box body 10 and moves toward the first guide end point K1; that is, the door body 30 keeps rotating counterclockwise relative to the box body 10 and moves outward and backward. max During the entire process, the door body 30 moves outward and backward relative to the box body 10. During the above opening process, the door body 30 moves backward, effectively supplementing the distance the door body 30 moved forward in the early stage, avoiding excessive forward movement caused by the rotation of the door body 30, which would cause the door body 30 to be significantly separated from the box body 10, thereby ensuring the stability of the door body 30 in this state.

[0161] In summary, the movement trend of the door body 30 during opening is characterized as follows:

[0162] (1) During the process of the door body 30 opening from the closed state to G4, the door body 30 moves outward and forward relative to the box body 10 for a certain distance; Figure 24-26 When the door body 30 is opened, the opened door body 30 drives the side sealing strip 3 thereon to move outward, and the moving side sealing strip 3 is quickly separated from the side sealing strip on the other door body 30 (see Figure 25 and Figure 26 The area within the dotted box changes), effectively preventing the movement of the other door 30 from opening. That is, this stage prevents the opening of one of the two opposing doors 30 from causing the other door 30 to open, effectively reducing cooling loss. It also effectively reduces obstruction of the access opening by the door 30 and effectively prevents interference between the door 30 and the cabinet 10 during opening.

[0163] (2) Door 30 opens from G4 to G max During the process, the door body 30 moves outward and backward relative to the box body 10 for a certain distance; this stage effectively supplements the distance the door body 30 moved forward in the early stage, avoiding excessive forward movement caused by the rotation of the door body 30 and causing the door body 30 to be significantly separated from the box body 10, thereby ensuring the stability of the door body 30 in this state; at the same time, it can effectively reduce the obstruction of the door body 30 to the access opening;

[0164] (3) The door 30 opens from the closed state to the maximum angle G max During the process, the door body 30 always has a tendency to move outward, which can effectively reduce the obstruction of the door body 30 to the access port, so that the drawers accommodated in the storage room can make full use of the width of the storage room, increase the width of the drawer, increase the space utilization rate of the drawer, and ensure that it can be pulled out of the storage room.

[0165] In summary, the setting with the above trajectory characteristics, on the one hand, avoids the situation where one of the two relatively arranged door bodies 30 is opened and drives the other door body 30 to open, thereby effectively reducing the loss of cooling energy; on the other hand, it also avoids the door body 30 from blocking the access opening when it is opened to the maximum angle, thereby facilitating the increase of the width of the drawer.

[0166] In summary, combined Figure 15-Figure 23 , with the positioning groove 6 and the guide groove 7 as references, the axis line segment IP always rotates clockwise and moves relative to the second trajectory line K in 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; as described above, the movement change trend of the axis line segment IP relative to the second trajectory line K in the present application is consistent, and its movement is continuous without sudden acceleration changes. The door body 30 is well stressed when opening, and is more stable and smoother.

[0167] In some embodiments of the present application, Figures 27-33 As shown, with the box body 10 (hinge shaft 4 and guide round block 5) as a reference, the door body 30 (positioning groove 6 and guide groove 7) rotates relative to the box body 10 to open, corresponding to the door body 30 opening to 0°, G1, G2, G3, G4, G5, G max The first side edge W is located at W0, W1, W2, W3, W4, W5, and W6 relative to the guide circle 5; that is, when the door body 30 is rotated to open to G max During this process, the movement trajectory of the first side edge W is the curve on which W0, W1, W2, W3, W4, W5, and W6 are simultaneously located. It can be concluded that during the entire process in which the door body 30 rotates and moves outward and forward, and then rotates and moves outward and backward, the first side edge W first moves outward a certain distance, then maintains a trend of moving outward; and when the door body 30 rotates to G3, it moves outward to its maximum position. In this embodiment, if G3∈[48°, 52°] is any value, it can be concluded that when the door body 30 rotates to an opening angle of approximately 50°, the first side edge W moves outward to its maximum point.

[0168] It is assumed that the door body 30 rotates around the fixed axis (guide center axis I), and the door body 30 is opened to 0°, G1, G2, G3, G4, G5, G max When the first side edge W is positioned relative to the guide circular block 5, it is located at W'0, W'1, W'2, W'3, W'4, W'5, and W'6 in sequence.

[0169] Comparing the arrangement of the present application with the manner in which the door body 30 rotates around a fixed axis (the guide center axis I), it can be seen that: W1 is located on the outward and forward side of W'1, W2 is located on the outward and forward side of W'2, W3 is located on the outward and forward side of W'3, W4 is located outside W'4, W5 is located on the outward and backward side of W'5, and W6 is located on the outward and backward side of W'6; in summary, compared with the manner in which the door body 30 rotates around a fixed axis (the guide center axis I), the door body 30 in this embodiment is opened from the closed state to the G max During the whole process, the first side edge W always moves outwards a certain distance.

[0170] In the embodiment of the present application, the door body 30 is opened to an angle of When the door body 30 rotates, it keeps moving outward. That is, the relative positions of the guide block 5 and the guide groove 7, the hinge shaft 4 and the positioning groove 6 are as shown in the embodiment. When the door 30 is in the initial state, during the opening process, the door bodies 30 rotate and move outwards in the initial stage of opening, which can prevent the other door body 30 from being opened when one of the two door bodies 30 is opened. Therefore, when the door body 30 is closed, the guide round block 5 and the hinge shaft 4 are not limited to being located at I0 and P0 in this application, but can be set to be located at I1 and P1 in sequence, or at I2 and P2 in sequence, or at I3 and P3 in sequence... That is, in this embodiment, the door body 30 is opened to an angle of The position of the axial center radius IA of the guide circular block 5 relative to the door body 30 can be set to the position of the axial center radius IA of the guide circular block 5 relative to the door body 30 in the initial state when the door body 30 is closed.

[0171] In the embodiment of the present application, the door body 30 is opened from the closed state to the maximum angle G max During the entire process of >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. There is no sudden change in force, and the movement is smoother.

[0172] In some embodiments of the present application, Figures 27-33 As shown, assuming that the door body 30 rotates around the fixed axis (guide center axis I), the door body 30 is opened to 0°, G1, G2, G3, G4, G5, G max When the side sealing edge H is positioned relative to the guide circular block 5, it is located at H'0, H'1, H'2, H'3, H'4, H'5, and H'6 in sequence.

[0173] Comparing the arrangement of the present application with the manner in which the door body 30 rotates around a fixed axis (the guide center axis I), it can be seen that: H1 is located on the outward and forward side of H'1, H2 is located on the outward and forward side of H'2, H3 is located on the outward and forward side of H'3, H4 is located outside H'4, H5 is located on the outward and rearward side of H'5, and H6 is located on the outward and rearward side of H'6; in summary, compared with the manner in which the door body 30 rotates around a fixed axis (the guide center axis I), the door body 30 in the present embodiment is opened from the closed state to the G max During the entire process, the side sealing edge H always moves outward by a certain distance; this greatly increases the distance that the side sealing edge H moves outward, effectively reducing the lateral obstruction of the door body 30 to the access opening.

[0174] In this embodiment, a second reference plane M2 is further defined. Figure 11 As shown, the second reference plane M2 is the plane where the storage chamber access opening is located. The second reference plane M2 does not move when the door 30 is opened relative to the box body 10 and is a reference plane that remains stationary relative to the box body 10.

[0175] During the process of the door body 30 opening from the closed state to G5, the side sealing edge H always keeps moving in the direction away from the second reference plane M2 and the reference plane M0;

[0176] The door 30 opens from G5 to the 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;

[0177] 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 this embodiment, G5=103°.

[0178] As an operative approach, the trajectory of the side panel H during the opening of the door 30 from the closed position to G5 is a circular arc; that is, the side panel H moves in an arc as the door 30 opens. This "arc" encompasses both mathematically defined standard arcs and arcs with minor deviations from the standard arc. As a configurable approach, this minor deviation is limited to 1mm. The hinge and door 20's track-shifting mechanism, with these trajectory characteristics, allows for smoother opening of the door 30.

[0179] In some embodiments of the present application, Figure 15 As shown, the door body 30 rotates from the closed state to the maximum angle G max During the process, the relative position relationship between the centroid plane F and the guide center axis I and the positioning center axis P is constantly changing; this is explained below.

[0180] The distance between the guide center axis I and the centroid plane F within the projection of the top wall of the box body 10 is recorded as the offset distance J. During the process of the door body opening from the closed state to G', in the projection of the plane where the top wall of the box body is located, the guide center axis I is located on the side of the centroid plane F closer to the front wall of the door. During this opening process, as the door body opening angle increases, the offset distance gradually decreases, and when the door body is opened to G', the offset distance J is 0.

[0181] The door opens from G` to G max During the opening process, in the projection of the plane where the top wall of the box is located, the guide center axis I is located on the side of the centroid plane F away from the front wall of the door; during the opening process, as the opening angle of the door increases, the offset distance gradually increases.

[0182] To illustrate the above from another perspective, when the guide center axis I is located on the side of the centroid plane F close to the door front wall 31, the offset distance J is a positive number; correspondingly, when the guide center axis I is located on the side of the centroid plane F away from the door front wall 31, the offset distance J is a negative number; when the guide center axis I is located on the centroid plane F, the offset distance J is 0;

[0183] As the door 30 opens from the closed position to G', the offset distance J between the guide center axis I and the center of mass plane F decreases. When the door 30 opens to G', the offset distance J is 0. G' can be set to 22 degrees.

[0184] The door 30 opens from G' to G max During the process, the offset distance J is a negative number, and as the opening angle increases, the offset distance J tends to decrease.

[0185] In some embodiments of the present application, the door 30 is opened to G0, G1, G', G2, G3, G4, G5, G max When , the offset distances are recorded as J0, J1, J`, J2, J3, J4, J5, and J6 in sequence; J0>J1>J`=0>J2>J3>J4>J5>J6.

[0186] In the above embodiment, the door 30 is opened from the closed state to the G max During the opening process, the offset distance J (the absolute value of J when the position is positive or negative) is any value between 0 and 7 mm. In this embodiment, the distance between the center of mass plane F of the door body 30 and the guide center axis is effectively limited, so that the center of mass plane F is always near the guide center axis I, effectively enhancing the stability of the door body 30 during the entire opening process.

[0187] 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.

[0188] In some embodiments of the present application, when the door is opened at 90°, the refrigerator door is flush with the side of the cabinet.

[0189] It also prevents the door from extending too far beyond the side wall of the box at 90° and blocks bulging of the box caused by foaming.

[0190] As an implementable approach, combining Figure 8 and Figure 12 As shown, when the door body 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 door front wall 31 is parallel to the plane where the access port is located;

[0191] When the door body 30 is opened to 90°, the door front wall 31 is parallel to the first body side wall; 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 door front wall 31 is L2.

[0192] When L1=L2, when the door body 30 is opened to 90°, the door front wall 31 is flush with the first side wall of the box body 10; wherein, L1 and L2 are equal and specifically defined as the difference between L1 and L2 being any value between -2mm and 2mm.

[0193] When L1 is less than L2, when the door body 30 is opened to 90 degrees, the door front wall 31 protrudes outside the first side wall of the cabinet 10. As another practicable embodiment, L1 is less than L2, and 0≤L2-L1≤4cm, so as to cover the bulge on the cabinet 10 caused by foaming, effectively concealing the blemish and improving the aesthetics of the refrigerator.

[0194] It should be noted that in this application example, "parallel" is specifically defined as the angle between two planes falling within a range of 0° to 3°. In other words, two planes are defined as parallel if the angle between them falls within a range of 0° to 3°. "Flush" is specifically defined as the maximum distance between the two planes falling within a range of less than 2mm. "Perpendicular" is specifically defined as the angle between two planes falling within a range of 88° to 90°. This definition applies to the entire application.

[0195] Figure 34 A structural diagram of the hinge in this application; Figure 4-Figure 7 and Figure 34 As shown, in some embodiments of the present application, the hinge is integrally formed by die-casting. The above description uses the hinge provided at the lower end of the door body as an example. The hinge plate 40, the guide round block 5, and the hinge shaft 4 are integrally formed by die-casting, effectively increasing the connection strength and integrity of the hinge plate 40, the guide round block 5, and the hinge shaft 4.

[0196] It should be noted that the hinge is integrally formed by die-casting and is applicable to the hinge provided at the lower end of the door body 30 , and is also applicable to the hinge provided at the upper end of the door body 30 .

[0197] Figures 35-38 is another structural diagram of the hinge in this application; Figures 35-38 As shown, in some embodiments of the present application, the hinge plate 40 and the guide round block 5 are provided separately. In this embodiment, the hinge provided at the lower end of the door body is used as an example for description; it should be noted that the following hinge structure is also applicable to the upper hinge provided at the upper end of the door body 30;

[0198] Specifically, the hinge shaft 4 and the positioning shaft 60 are formed on the extension 402 of the hinge plate 40. In this embodiment, the hinge shaft 4 is located on the side of the positioning shaft 60 that is closer to the housing 10 and farther from the side wall of the first body. The guide block 5 is flat and has a first through-hole 51 and a second through-hole 52. The first through-hole 51 mates with the hinge shaft 4, and the second through-hole 52 mates with the positioning shaft 60. The guide block 5 is mounted on the extension 402 of the hinge plate 40 via the first through-hole 51 and the second through-hole 52. The above arrangement of the hinge shaft 4 and the positioning shaft 60 cooperates with the guide block 5, facilitating the installation of the guide block 5 and effectively limiting the movement of the guide block 5 within the surface of the extension 402 near 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, effectively limiting the movement of the guide block 5 along the central axis of the hinge shaft 4. The above arrangement effectively fixes the guide block 5 and allows it to move relative to the guide groove 7 during the opening process of the door body 30. The above arrangement of the hinge plate 40 and the guide block 5 as separate components facilitates the replacement and maintenance of parts.

[0199] In addition, in this embodiment, the guide round block 5 can be formed by injection molding or die casting.

[0200] It should 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 circle 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 to avoid the positioning shaft 60 interfering with other components and affecting the movement of the door body 30.

[0201] As a configuration, the second through-hole 52 is located at the center of the guide block 5; the positioning shaft 60 is installed in the second through-hole 52 and passes through the center of the guide block 5. Optionally, the center of the second through-hole 52 coincides with the center point of the guide block 5. That is, the central axis I of the guide block 5 coincides with the central axis of the positioning shaft 60, effectively limiting the movement of the hinge plate 40 and the guide block 5 within the surface of the extension 402 proximal to the door body 30, reducing shaking and improving the stability of the door body 30 when opening.

[0202] Figure 39-40 is another structural diagram of the hinge in this application; Figure 39-40As shown, in some embodiments of the present application, the hinge plate 40 and the guide round block 5 are provided separately. In this embodiment, the hinge provided at the lower end of the door body is used as an example for description; it should be noted that the following hinge structure is also applicable to the upper hinge provided at the upper end of the door body 30;

[0203] Specifically, a first positioning hole 53 and a second positioning hole 54 are formed on the extension portion 402 of the hinge plate 40. 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 side wall of the first body. The guide block 5 is in the shape of a flat plate, and has a hinge shaft 4 and a positioning shaft 60 on the guide block 5; wherein, the hinge shaft 4 includes a first shaft section located on the side of the guide block 5 close to the extension portion 402 and a second shaft section away from the extension portion 402; wherein, the positioning shaft 60 and the first shaft section are located on the same side of the guide block 5; the first shaft section 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 portion 402 of the hinge plate 40. The above-mentioned first positioning hole 53 and second positioning hole 54 cooperate with the two axes on the guide round block 5, which facilitates the installation of the guide round block 5 and can effectively limit the movement of the guide round block 5 on 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 axis section of the hinge shaft 4, and the guide groove 7 cooperates with the guide round block 5, effectively limiting the movement of the guide round block 5 along the central axis direction of the hinge shaft 4; the above setting effectively fixes the guide round block 5 and moves relative to the guide groove 7 during the opening process of the door body 30.

[0204] In addition, in this embodiment, the guide round block 5 can be formed by injection molding or die casting.

[0205] As a configurable method, the height of the positioning shaft 60 is not higher than the depth of the second through hole 52 of the guide circle 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 to avoid the second positioning hole 54 interfering with other components and affecting the movement of the door body 30.

[0206] Alternatively, the positioning shaft 60 and the hinge shaft 4 can be located on opposite sides of the guide center axis I to enhance the stability of the hinge and guide block 5 and reduce relative movement between the extension 402 and the guide block 5. Alternatively, within 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 can be aligned on the same straight line; that is, within 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 within the cross-section of the guide block 5. This increases the connection strength to the guide block 5, reduces its wobble, and evens out force distribution.

[0207] Figure 41 This is another structural diagram of the hinge in this application; refer to Figure 41 In some embodiments of the present application, the hinge plate 40 and the guide round block 5 are provided separately. In this embodiment, the hinge provided at the lower end of the door body is used as an example for explanation; it should be noted that the following hinge structure is also applicable to the upper hinge provided at the upper end of the door body 30; specifically, the connecting portion 401 of the hinge provided at the lower end of the door body 30 is connected to the front end surface of the box body 10. A recess 55 is formed on the extension portion 402 of the hinge plate 40, and the projection of the recess 55 on the hinge plate 40 is circular; a hinge shaft 4 is formed on the side of the recess 55 close to the box body 10, and the hinge shaft 4 is integrally formed with the extension portion 402 and the connecting portion 401; the guide round block 5 is flat and has a first through hole 51 on the guide round block 5 to cooperate with the hinge shaft 4; the guide round block 5 is mounted on the extension portion 402 of the hinge plate 40 through the first through hole 51 and the recess 55. The outer circumferential wall of the guide block 5 contacts and fits with the inner circumferential wall of the recess 55; restricted by the recess 55, the guide block 5 is subjected to uniform force in the circumferential direction, thereby increasing the stability of the fit between the guide block 5 and the hinge plate 40. The hinge shaft 4 and the recess 55 are arranged above to allow the hinge to fit with the guide block 5, facilitate the installation of the guide block 5, and effectively limit the movement of the guide block 5 within the surface of the extension 402 close to the door body 30; the positioning groove 6 on the door body 30 fits with the hinge shaft 4, and the guide groove 7 fits with the guide block 5, effectively limiting the movement of the guide block 5 along the central axis of the hinge shaft 4; the above arrangement effectively fixes the guide block 5 and allows it to move relative to the guide groove 7 during the opening process of the door body 30. The hinge plate 40 and the guide block 5 are arranged separately above to facilitate the replacement and maintenance of parts.

[0208] In addition, in this embodiment, the guide round block 5 can be formed by injection molding or die casting.

[0209] It should be noted that, in the direction perpendicular to the hinge plate 40 , the thickness of the guide block 5 is greater than the depth of the pit 55 to ensure that the guide block 5 is at least partially located outside the pit 55 to achieve its cooperation with the guide groove 7 .

[0210] Figures 42 to 52 This is a schematic diagram of the structure of the door and the box body locked in this application; Figures 42 to 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 a locking block is fixed to the door body 30, and the locking block is installed on the door body 30 at a position adjacent to the guide groove 7. In this embodiment, a first mating portion is provided at the end of the hinge away from the side wall of the first body, and the locking block has a second mating portion, which is used to cooperate with the first mating portion to achieve locking and unlocking of the door body 30 and the box body 10.

[0211] Specifically, in this embodiment, the locking block provided at the lower end of the door body 30 is used as an example for explanation. The door body 30 includes a door end cover 38, which is provided at the end of the door body 30 near the hinge. The door end cover 38 has a positioning groove 6 and a guide groove 7 near the hinge. That is, in this embodiment, the positioning groove 6 and the guide groove 7 are integrally formed on the door end cover 38. In this embodiment, the door end cover 38 is an injection molded part, which is integrally molded by injection molding and has the positioning groove 6 and the guide groove 7 formed thereon. As previously mentioned, the guide groove 7 is defined by the cooperation of the first guide bar 8 and the second guide bar 9.

[0212] An accommodating groove 37 is provided at an adjacent position of the door end cover 38 away from the door side wall 32 , and the locking block is inserted into the accommodating groove 37 , and then the locking block is fastened to the door body 30 by screws or the like.

[0213] In this embodiment, the second mating portion of the locking block is configured as a locking hook 82. The locking hook 82 extends away from the door side wall 32 and bends toward a side closer to the door rear wall 33 and the door side wall 32. The opening of the locking hook 82 faces the door side wall 32, and the free end of the locking hook 82 is located on the side closer to the door rear wall 33.

[0214] The first matching portion provided on the side of the hinge plate 40 away from the first body side wall is provided with a stop portion 41, and a hooking gap 42 is formed on the side of the stop portion 41 close to the box body; 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 portion 41 is located in the lock hook 82, and the lock hook 82 on the door body 30 hooks the stop portion 41 on the hinge plate 40, thereby locking the door body 30 to prevent the door body 30 from being loosely closed and affecting the refrigeration and freezing effect of the refrigerator; when the door body 30 is opened, the lock hook 82 is deformed by the force and overcomes the obstruction of the stop portion 41, thereby disengaging from the stop portion 41.

[0215] The lock hook 82 includes a root portion 83 and a hook portion 84. The root portion 83 is fixedly connected to the receiving slot 37, while the hook portion 84 is connected to the root portion 83 and bent toward the side near the door rear wall 33 and the door side wall 32. Screws are inserted through the root portion 83 to connect it to the door body 30 to strengthen the connection between the root portion 83 and the door body 30. This ensures that only the hook portion 84 deforms when the lock hook 82 is released from the stop portion 41.

[0216] The free ends of the hook portion 84 and the stop portion 41 are both in an arc shape, which helps the hook portion 84 to smoothly hook onto the stop portion 41 or detach from the stop portion 41 along the arc.

[0217] Combine Figures 42 to 52When the door body 30 is closed from an open state, as the door body 30 rotates to close, the free end of the hook portion 84 gradually approaches the stop portion 41. When the hook portion 84 abuts the stop portion 41, the door body 30 continues to close. Under the action of the stop portion 41, the hook portion 84 is deformed, the stop portion 41 enters the hook portion 84, and the free end of the hook portion 84 enters the hook gap 42; the lock hook 82 is locked with the hinge plate 40, thereby locking the door body 30 and the box body 10. When the door body 30 is opened from a closed state, the process is opposite to the process of closing the door body, and will not be repeated here. When the door body 30 is closed from the open state to an angle less than 7°, the door body 30 automatically closes under the action of the hook portion 84 and the stop portion 41; when the door body is opened to 5° to 8°, the hook portion 84 separates from the stop portion 41.

[0218] In some embodiments, a first protrusion 34 and a second protrusion 35 may be provided within the receiving groove 37 on the door body 30, with a clearance groove 36 formed between the first protrusion 34 and the second protrusion 35. The first protrusion 34 is generally located on the side of the second protrusion 35 that is closer to the door front wall 31 and the door side wall 32. A plug-in plate 85 is formed at the root joint 83, and the plug-in plate 85 is plugged into the clearance groove 36. In this way, the first protrusion 34 and the second protrusion 35 prevent the root joint 83 from deforming along the direction from the door front wall 31 to the door rear wall 33 by limiting the position.

[0219] Specifically, the plug plate 85 is configured as an arc-shaped plate; the second protrusion 35 is also an arc-shaped plate; the edge of the first protrusion 34 adjacent to the second protrusion 35 is consistent with the shape of the second protrusion 35; the first protrusion 34 and the second protrusion 35 together define an arc-shaped gap groove 36; the arc-shaped plug plate 85 cooperates with the arc-shaped gap groove 36. This arc-shaped configuration increases the area defined by the gap groove 36 on the root joint 83, increases the connection strength between the locking block and the door body 30, and effectively limits the deformation of the root joint 83.

[0220] The locking block can be made of POM material, which has strong friction resistance and can increase the service life of the hinge.

[0221] Figures 53 to 55 This is a schematic diagram of the structure of the door and the box body locked in this application; Figures 53 to 55 In some embodiments of the present application, the door body 30 includes a door end cap 38, which is located at the end of the door body 30 near the hinge. A mounting block is provided on the door end cap 38, opposite the hinge plate 40, and a positioning groove 6 and a guide groove 7 are formed on the mounting block. In this embodiment, a first mating portion is provided at the end of the hinge away from the first body sidewall, and the mounting block has a second mating portion, which is configured to cooperate with the first mating portion to achieve locking and unlocking of the door body 30 and the box body 10.

[0222] Specifically, this embodiment is described by taking the mounting block provided at the lower end of the door body 30 as an example. In this embodiment, the mounting block is integrally formed.

[0223] The mounting block includes a positioning groove 6, which includes a groove bottom 70 and a circumferential groove wall 71; wherein the circumferential groove wall 71 surrounds the edge of the groove bottom 70, and the circumferential groove wall 71 encloses a groove opening 72 arranged opposite to the groove bottom 70. The mounting block includes 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. A first guide bar 8 and a second guide bar 9 are provided on the plate body 81. The first guide bar 8 is located on the side of the positioning groove 6 away from the door side wall 32, and the second guide bar 9 is located on the side of the positioning groove 6 away from the door side wall 32. In addition, a receiving groove 37 is provided on the door end cover 38 located at the lower end of the door body 30. The mounting block is inserted into the receiving groove 37, and then the plate body 81 is fastened to the door body 30 by screws or the like. As a configuration option, a snap-in interface 86 is provided at one end of the plate 81 near the door rear wall 33; a latching protrusion 371 is provided on the inner wall of the receiving slot 37 to engage with the snap-in interface 86; when the mounting block is inserted into the receiving slot 37, the latching protrusion 371 fits within the snap-in interface 86, thereby defining the relative position of the mounting block and the door body 30. In this embodiment, the screw is fixed to the side of the plate 81 away from the door side wall 32, that is, the screw fixing position is located on the side away from the door side wall 32 where the latching interface 86 and the latching protrusion 371 engage, effectively increasing the secure connection between the mounting block and the door body 30. In this embodiment, a receiving cavity 39 is formed in the area of ​​the receiving slot 37 near the door side wall 32. The positioning groove 6 is installed within the receiving cavity 39, and its circumferential groove wall 71 engages with the cavity wall of the receiving cavity 39.

[0224] In some embodiments of the present application, Figures 53 to 55 The second mating portion on the mounting block is configured as a lock hook structure. Specifically, the second mating portion includes a lock hook 82 provided on the side of the plate 81 away from the door side wall 32. The lock hook 82 extends away from the door side wall 32 and bends toward the side close to the door rear wall 33 and the door side wall 32. The opening of the lock hook 82 faces the plate 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 on the side close to the door rear wall 33.

[0225] The first matching portion provided on the side of the hinge plate 40 away from the first body side wall is provided with a stop portion 41, and a hooking gap 42 is formed on the side of the stop portion 41 close to the box body; 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 portion 41 is located in the lock hook 82, and the lock hook 82 on the door body 30 hooks the stop portion 41 on the hinge plate 40, thereby locking the door body 30 to prevent the door body 30 from being loosely closed and affecting the refrigeration and freezing effect of the refrigerator; when the door body 30 is opened, the lock hook 82 is deformed by the force and overcomes the obstruction of the stop portion 41, thereby disengaging from the stop portion 41.

[0226] The lock hook 82 includes a root portion 83 and a hook portion 84. The root portion 83 is connected to the plate 81, and the hook portion 84 is connected to the root portion 83 and bent toward the side near the door rear wall 33 and the door side wall 32. Screws are inserted through the root portion 83 to connect it to the door body 30 to strengthen the connection between the root portion 83 and the door body 30. This ensures that only the hook portion 84 deforms when the lock hook 82 is released from the stop portion 41.

[0227] The free ends of the hook portion 84 and the stop portion 41 are both in an arc shape, which helps the hook portion 84 to smoothly hook onto the stop portion 41 or detach from the stop portion 41 along the arc.

[0228] When the door body 30 is closed from an open state, as the door body 30 rotates to close, the free end of the hook portion 84 gradually approaches the stop portion 41. When the hook portion 84 abuts the stop portion 41, the door body 30 continues to close. Under the action of the stop portion 41, the hook portion 84 is deformed, the stop portion 41 enters the hook portion 84, and the free end of the hook portion 84 enters the hook gap 42; the lock hook 82 is locked with the hinge plate 40, thereby locking the door body 30 and the box body 10. When the door body 30 is opened from a closed state, the process is opposite to the process of closing the door body, and will not be repeated here. When the door body 30 is closed from the open state to an angle less than 7°, the door body 30 automatically closes under the action of the hook portion 84 and the stop portion 41; when the door body is opened to 5° to 8°, the hook portion 84 separates from the stop portion 41.

[0229] In some embodiments, the door body 30 may be provided with a first protrusion 34 and a second protrusion 35, with a clearance groove 36 formed between the first protrusion 34 and the second protrusion 35. The first protrusion 34 is generally located on the side of the second protrusion 35 that is closer to the door front wall 31 and the door side wall 32. A plug-in plate 85 is formed at the root joint 83, and the plug-in plate 85 is plugged into the clearance groove 36. In this way, the first protrusion 34 and the second protrusion 35 prevent the root joint 83 from deforming along the direction from the door front wall 31 to the door rear wall 33 by limiting the position.

[0230] Specifically, the plug plate 85 is configured as an arc-shaped plate; the second protrusion 35 is also an arc-shaped plate; the edge of the first protrusion 34 adjacent to the second protrusion 35 is consistent with the shape of the second protrusion 35; the first protrusion 34 and the second protrusion 35 together define an arc-shaped gap groove 36; the arc-shaped plug plate 85 cooperates with the arc-shaped gap groove 36. This arc-shaped configuration increases the area defined by the gap groove 36 on the root joint 83, increases the connection strength between the mounting block and the door body 30, and effectively limits the deformation of the root joint 83.

[0231] Alternatively, the mounting block at the upper end of the door body 30 may have only the positioning slot 6 and the guide slot 7 provided therein, without the locking hook structure. Accordingly, when the structure of the mounting block changes, the receiving slot 37 provided on the door body will adapt thereto to accommodate and secure the mounting block.

[0232] The mounting block can be made of POM, which has strong friction resistance and can extend the life of the hinge. Furthermore, in this embodiment, the positioning groove 6, guide groove 7, and locking hook structure are integrally formed to form the mounting block, increasing structural precision, integrity, and strength. Optionally, the mounting block, which incorporates the positioning groove 6, guide groove 7, and locking hook structure, can be integrally formed by injection molding.

[0233] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A refrigerator, characterized in that It includes: The box body has a first side wall and a second side wall that are oppositely arranged; A hinge is provided on the box body and is close to the side wall of the first body; the hinge is provided with a guide round block and a hinge shaft fixed to the guide round block; wherein the hinge is provided with a first mating portion at one end away from the side wall of the first body; The door body comprises a door front wall away from the box body when the door body is closed, and a door side wall close to the hinge and connected to the door front wall; A guide groove is provided at the end of the door body close to the hinge; the guide round block is installed in the guide groove and cooperates with two opposite groove walls of the guide groove; A positioning groove is provided on the bottom of the guide groove; the hinge shaft cooperates with the positioning groove; a locking block fixed to the end of the door body and located on a side of the guide groove away from the door side wall; the locking block has a second matching portion for matching with the first matching portion to achieve locking and unlocking of the door body and the box body; 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 move a distance away from the side wall of the second body while rotating.

2. The refrigerator according to claim 1, wherein: The guide groove includes a first guide bar and a second guide bar arranged in parallel, the first guide bar is located on the side of the second guide bar away from the door side wall, and the positioning groove is located between the first guide bar and the second guide bar, and extends in the direction from the first guide bar to the second guide bar; the first guide bar and the second guide bar are both matched with the guide round block.

3. The refrigerator according to claim 1 or 2, characterized in that: The first matching part is a stop part, and the second matching part is configured as a lock hook; when the door body is closed, the lock hook is locked with the stop part; the lock hook includes a root connection part and a hook part; one end of the root connection part is fixed to the door body, and the other end is connected to the hook part.

4. The refrigerator according to claim 3, wherein: The door body is provided with a first protrusion and a second protrusion, wherein the first protrusion is located on a side of the second protrusion close to the door front wall and the door side wall; and the first protrusion and the second protrusion jointly define a gap groove; A plug-in board is formed at the root connection portion, and the plug-in board is installed in the gap groove.

5. The refrigerator according to claim 1, 2 or 4, characterized in that: The center trajectory line of the guide groove is recorded as the second trajectory line K, and the second trajectory line K is perpendicular to the front wall of the door; the door body includes a door rear wall arranged opposite to the front wall of the door, and relative to the front wall of the door, the positioning groove is close to the door rear wall.

6. The refrigerator according to claim 5, characterized in that: The central axis of the hinge shaft is recorded as the positioning central axis P, and the central axis of the guide circle is recorded as the guide central axis I; in the projection of the top wall of the box body, the radius of the circular cross-section of the guide circle passing through the positioning central axis P is recorded as the axis radius IA, and the length of the line segment IP is greater than the length of the line segment AP.

7. The refrigerator according to claim 6, characterized in that: The plane passing through the guide center axis I and parallel to the side wall of the first body is recorded as the first reference plane M1; in the projection of the top wall of the box, the angle between the axial radius IA and the first reference plane M1 is recorded as the first angle θ; wherein, the first angle θ is any value between 25° and 35°.

8. The refrigerator according to claim 7, wherein: In the projection of the top wall of the box body, the axial radius IA is located on the side of the first reference plane M1 away from the side wall of the first body, and is located on the side close to the box body of the plane passing through the guide center axis I and parallel to the front wall of the door when the door body is closed.

9. The refrigerator according to claim 1, 2, 4, 6, 7 or 8, characterized in that: The center trajectory line of the positioning groove is recorded as the first trajectory line S, and the distance between the 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 the 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.

10. The refrigerator according to claim 1 or 2 or 4 or 6 or 7 or 8, characterized in that: A door seal is provided on the door wall surface of the door body opposite to the door front wall; wherein the edge of the door seal close to the door side wall and away from the door front wall is marked as a side seal edge H; The box body defines a heat-insulated storage chamber, the storage chamber having an access opening closed or opened by the door body; the plane on which the access opening is located is denoted as a second reference plane M2; the plane on which the side wall of the first body 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 of the door body relative to the box body, and are reference planes that remain stationary relative to the box body; During the process of the door body opening from the closed state to the fifth angle G5, the side sealing edge H always keeps moving in a direction away from the second reference plane M2 and the base plane M0; The door body is opened from the fifth angle G5 to the maximum angle G max During the process, the side sealing edge H moves away from the second reference plane M2 and close to the reference plane M0; wherein, G max >G5>90°.

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