Refrigerator

Abstract

The invention provides a refrigerator which comprises a refrigerator body with a first body side wall and a second body side wall which are oppositely arranged, a door body and a hinge assembly connecting the refrigerator body and the door body. The hinge assembly comprises a first shaft and a second shaft which are fixed on the refrigerator body, and a guide part and a guide part which are arranged on the door body; the first shaft is matched with the guide part, and the second shaft is matched with the guide part; in the whole process that the door body is opened to the eighth angle G8 from the closed state, the axis center point I moves relative to the door body to form an axis center point trajectory; when the opening angle of the door body is # imgabs0 #, the instantaneous displacement of the central point of the axis relative to the trajectory of the central point of the axis is recorded as instantaneous midpoint displacement # imgabs1 #, and the instantaneous midpoint displacement # imgabs2 # points to the plane where the first body side wall and the pick-and-place opening are located; wherein the # imgabs3 # belongs to any one value from 0 to G8; according to the refrigerator, when the door body is opened, the door body does not interfere with the containing cabinet, the door body can be opened to the obtuse angle in the containing cabinet, the door body can be completely opened in the containing cabinet, and a user can conveniently take and place articles.

Description

Technical Field

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

[0002] Built-in refrigerators are generally built into a customized storage cabinet. In order to improve the fit of the refrigerator in the external storage cabinet, the gap between the outer wall of the refrigerator and the inner wall of the storage cabinet is generally set to be very small. When the refrigerator door is opened, the rotating door hinge vertical edge is easy to hit the inner wall of the external storage cabinet. Due to the space limitation of the storage cabinet, in order to ensure that the door body can be opened effectively, the corner of the door body must not exceed the size of the cabinet too much during the door opening process.

[0003] At present, in order to meet the needs of embedded installation, most of them are equipped with a double shaft on one of the door and the box body, and a guide structure matched with the double shaft is arranged on the other to control the door to move inward while rotating to open, so as to meet the needs of embedded installation. Under the setting of the combination of the double shaft and the guide, the door moves inward during the opening process, so as to ensure that the corner of the door body does not exceed the size of the box body too much during the door opening process.

[0004] When customizing the storage cabinet in which the built-in refrigerator is embedded, the standard is that when the refrigerator door is closed, the front wall of the door is flush with the plane where the opening end of the storage cabinet is located, so that the size of the refrigerator is adapted to the size of the storage cabinet, and a hidden flush installation is achieved. Under the premise that the door of the built-in refrigerator can be opened smoothly without interfering with the inner wall of the storage cabinet, as the opening angle of the refrigerator door increases, the front wall of the door approaches the end of the adjacent storage cabinet near its opening; when the front wall of the door contacts the end of the adjacent storage cabinet near its opening, the door body opens to the extreme position. In summary, the extreme angle that the refrigerator door installed in the storage cabinet can be opened is limited by the size of the storage cabinet for realizing the hidden installation of the refrigerator and the gap between the outer wall of the refrigerator and the inner wall of the storage cabinet. The extreme angle that the refrigerator door installed in the storage cabinet can be opened is small, which is inconvenient for users to take and put items. Summary of the invention

[0005] The present invention solves one of the many technical problems in the related art at least to some extent.

[0006] To this end, the present application aims to provide a refrigerator whose hinge assembly enables a door body placed in a storage cabinet to be opened to a larger angle.

[0007] The refrigerator according to the present application comprises:

[0008] The box body defines a storage chamber having a take-in and put-out opening; the box body comprises a first body side wall and a second body side wall arranged opposite to each other;

[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 first body side wall and connected to the door front wall;

[0010] A hinge assembly, which connects the box body and the door body so that the door body can rotate relative to the box body to open or close the access opening; the hinge assembly includes:

[0011] A hinge plate, comprising a connecting portion connected to the box body and close to the side wall of the first body, and an extending portion extending forward from the connecting portion;

[0012] A first shaft and a second shaft, which are disposed on the extension portion;

[0013] A guide part and a guide portion, which are arranged on the door body and close to the door side wall; the first shaft cooperates with the guide part, and the second shaft cooperates with the guide part;

[0014] The guide portion has a guide track line; the guide track line first extends from an end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall, and then extends to a direction close to the door front wall and the door side wall;

[0015] The guide portion has a guide track line; the guide track line first extends from an end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall, and then extends to a direction close to the door front wall and the door side wall;

[0016] During the process of opening the door body from a closed state, the central axis of the first shaft moves relative to the guide portion along its guide trajectory, and the central axis of the second shaft moves relative to the guide portion along its guide trajectory, so that the door body moves toward a side close to the side wall of the second body and away from the access opening while rotating;

[0017] The central axis of the first axis is denoted as the first central axis P, and the central axis of the second axis is denoted as the second central axis Q;

[0018] In the projection of the plane where the top wall of the box body is located, the line segment where the first central axis P and the second central axis Q are located is recorded as the axis line segment PQ, and the midpoint of the axis line segment PQ is recorded as the axis midpoint I;

[0019] During the whole process of the door body opening from the closed state to the eighth angle G8, the axis center point I moves relative to the door body to form an axis center point trajectory line;

[0020] The door opening angle is When the instantaneous displacement of the center point of the axis relative to the trajectory line of the center point of the axis is recorded as the instantaneous midpoint displacement Among them, the instantaneous midpoint displacement Pointing to the plane where the first body side wall and the access opening are located; wherein, Any value between 0° and G8.

[0021] A refrigerator comprising:

[0022] The box body defines a storage chamber having a take-in and put-out opening; the box body comprises a first body side wall and a second body side wall arranged opposite to each other;

[0023] 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 first body side wall and connected to the door front wall;

[0024] A hinge assembly, which connects the box body and the door body so that the door body can rotate relative to the box body to open or close the access opening; the hinge assembly includes:

[0025] A hinge plate, comprising a connecting portion connected to the box body and close to the side wall of the first body, and an extending portion extending forward from the connecting portion;

[0026] A first shaft and a second shaft, which are disposed on the extension portion;

[0027] A guide part and a guide portion, which are arranged on the door body and close to the door side wall; the first shaft cooperates with the guide part, and the second shaft cooperates with the guide part;

[0028] The guide portion has a guide track line; the guide track line first extends from an end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall, and then extends to a direction close to the door front wall and the door side wall;

[0029] The guide portion has a guide track line; the guide track line first extends from an end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall, and then extends to a direction close to the door front wall and the door side wall;

[0030] During the process of opening the door body from a closed state, the central axis of the first shaft moves relative to the guide portion along its guide trajectory toward the direction close to the door side wall, and the central axis of the second shaft moves relative to the guide portion along its guide trajectory toward the direction close to the door side wall, so that the door body moves toward the side close to the second body side wall and away from the access opening while rotating;

[0031] The central axis of the first axis is denoted as the first central axis P, and the central axis of the second axis is denoted as the second central axis Q;

[0032] In the projection of the plane where the top wall of the box body is located, the line segment where the first central axis P and the second central axis Q are located is recorded as the axis line segment PQ, and the midpoint of the axis line segment PQ is recorded as the axis midpoint I;

[0033] During the whole process of the door body opening from the closed state to the eighth angle G8, the axis center point I moves relative to the door body to form an axis center point trajectory line;

[0034] The door opening angle is When the instantaneous displacement of the center point of the axis relative to the trajectory line of the center point of the axis is recorded as the instantaneous midpoint displacement Among them, the instantaneous midpoint displacement Pointing to the plane where the first body side wall and the access opening are located; wherein, Any value between 0° and G8.

[0035] In some embodiments of the present application, when the door body is closed, the first central axis P is located at the starting guide point P0 of the guide trajectory line;

[0036] When the door body is opened to a fourth angle G4, the first central axis P is located at a fourth guide point P4 on the guide trajectory at the largest distance from the door front wall;

[0037] When the door body is opened to an eighth angle G8, the first central axis P is located at an eighth guiding point P8 of the guiding trajectory;

[0038] In the projection of the plane where the top wall of the box is located, in the direction perpendicular to the door side wall, the distance between the starting guide point P0 and the fourth guide point P4 is recorded as |P0P4|`, and the distance between the fourth guide point P4 and the eighth guide point P8 is recorded as |P4P8|`; wherein, |P0P4|`: |P4P8|`>1; G8>90°>G4>0°.

[0039] In some embodiments of the present application, the angle between the straight line P0P4 where the starting guide point P0 and the fourth guide point P4 are located and the front wall of the door is recorded as β1; the angle between the straight line P4P8 where the fourth guide point P4 and the eighth guide point P8 are located and the front wall of the door is recorded as β2; β1∈(0°, 90°), β2∈(0°, 90°); tanβ2>1>tanβ1>0.

[0040] In some embodiments of the present application, when the door body is closed, the center point of the axis is located at the starting midpoint I0 relative to the door body;

[0041] When the door body is opened to the reversing angle G', the center point of the axis is located at the reversing midpoint I' relative to the door body;

[0042] When the door body is opened to an eighth angle G8, the center point of the axis is located at an eighth midpoint I8 relative to the door body;

[0043] In the projection of the plane where the top wall of the box body is located, the plane where the door side wall is located is the Y1 axis, and the plane where the door front wall is located is the X1 axis; wherein the X1 axis is perpendicular to the Y1 axis and intersects at the origin O1; the direction from the door front wall to the wall surface on the door body opposite to the door front wall is the positive direction of the Y1 axis, and the direction from the door side wall to the end on the door body opposite to the door side wall is the positive direction of the X1 axis, forming a two-dimensional door body coordinate system X1O1Y1; the door body coordinate system X1O1Y1 is a two-dimensional coordinate system that is stationary relative to the door body;

[0044] In the door body coordinate system X1O1Y1, the slope of the straight line between the starting midpoint I0 and the reversing midpoint I' is recorded as F' I1 The slope of the straight line between the commutation midpoint I' and the eighth midpoint I8 is recorded as F' I2 ; Among them, F` I2 >0>F` I1 , 1>F` I2 >|F` I1 |>0.

[0045] In some embodiments of the present application, in the direction perpendicular to the door side wall, the distance between the starting midpoint I0 and the reversing midpoint I` is recorded as |I0I`|`, and the distance between the reversing midpoint I` and the eighth midpoint I8 is recorded as |I`I8|`; wherein, |I0I`|`:|I`I8|` belongs to any value from 1 to 3.

[0046] In some embodiments of the present application, the door body has a door rear wall arranged opposite to the door front wall;

[0047] The angle bisector of the angle formed by the door front wall and the door side wall is recorded as the first angle bisector V1; the angle bisector of the angle formed by the door rear wall and the door side wall is recorded as the second angle bisector V2;

[0048] During the whole process of the door body opening from the closed state to the eighth angle G8, the trajectory line of the axis center point I moving relative to the door body is recorded as the axis center point trajectory line;

[0049] The intersection of the axis center point trajectory line and the first angle bisector plane V1 is recorded as the first point I J1 , and the intersection with the second angle bisector V2 is recorded as the second point I J2 ;

[0050] Among them, the first point I J1 With the second point I J2 Both are close to intersection J.

[0051] In some embodiments of the present application, when the door body is in a closed state, the first axis and the second axis are both located on the side of the first angular bisector plane V1 away from the door side wall, and the first axis and the second axis are separated on opposite sides of the second angular bisector plane V2.

[0052] In some embodiments of the present application, when the door body is in a closed state, the distance between the central axis of the first axis and the second angle bisector plane V2 is denoted as λ P , the distance between the central axis of the second axis and the second angle bisector V2 is denoted as λ Q ; Among them, λ P :λ Q ≤1.

[0053] In some embodiments of the present application, the commutation angle G`=90°;

[0054] During the process of the door body opening from the closed state to 90°, the center point I of the axis moves relative to the door body toward the side close to the door side wall and away from the door front wall;

[0055] When the door body is opened from 90° to the eighth angle G8, the center point I of the axis moves relative to the door body toward the side close to the door side wall and the door front wall.

[0056] In some embodiments of the present application, a displacement coordinate system AOB is established within the projection of the plane where the top wall of the box is located; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access port is located, and the direction from the access port to the front wall of the door when the door is closed is taken as positive; OA is parallel to the plane where the access port is located, and the direction from the second body side wall to the first body side wall is taken as positive; the displacement coordinate system AOB is a coordinate system that is stationary relative to the box;

[0057] During the whole process of the door body opening from the closed state to the eighth angle G8, the door body has a first direction displacement parallel to the front wall of the door while rotating. A second direction displacement parallel to the door side wall The first direction displacement The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is

[0058] During the process of the door body opening from the closed state to 90°,

[0059] When the door is opened to 90°,

[0060] During the process of the door body opening from 90° to the eighth angle G8, Among them, 0°<G`=90°<G8.

[0061] In some embodiments of the present application, during the entire process of the door body opening from a closed state to the eighth angle G8, the midpoint I of the axis first moves toward the side close to the door side wall and away from the door front wall relative to the door body to the reversing midpoint I`, and then moves toward the side close to the door side wall and the door front wall.

[0062] In some embodiments of the present application, during the entire process of the door body opening from the closed state to the eighth angle G8, the door body has a first direction displacement parallel to the front wall of the door while rotating. A second direction displacement parallel to the door side wall The first direction displacement The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is

[0063] During the process of the door body opening from the closed state to the reversing angle G',

[0064] During the process of the door body opening from the reversing angle G' to 90°,

[0065] When the door is opened to 90°,

[0066] During the process of the door body opening from 90° to the eighth angle G8, Among them, 0°<G`<90°<G8.

[0067] In some embodiments of the present application, the guide trajectory line includes a first guide line and a second guide line connected to an end of the first guide line close to the door side wall;

[0068] Wherein, the first guide line is a straight line, and extends from one end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall;

[0069] The second guide line is a curve, and extends from its end close to the door side wall and the end of the first guide line close to the door side wall to a side close to the door side wall and away from the door front wall, and then extends to a side close to the door side wall and the door front wall.

[0070] In some embodiments of the present application, the connection point between the first guide line and the second guide line is recorded as the second guide point P2; the straight line between the second guide point P2 and the eighth guide point P8 is recorded as the straight line P2P8;

[0071] The point on the second guide line with the maximum distance from the straight line P2P8 is recorded as the second inflection point P m ; where γ3 = ∠P2P m P8 is any value between 100° and 120°.

[0072] In some embodiments of the present application, the guide trajectory line includes a third guide line, and the third guide line is connected to an end of the second guide line close to the door side wall;

[0073] The third guide line is a straight line, and extends from one end thereof away from the door side wall toward a direction close to the door front wall and the door side wall;

[0074] The first guide line is tangentially connected to the second guide line, and the second guide line is tangentially connected to the third guide line.

[0075] Compared with the prior art, the advantages and positive effects of the present invention are:

[0076] The present invention provides a refrigerator, which comprises a box body having a first body side wall and a second body side wall arranged opposite to each other, a door body, and a hinge assembly connecting the box body and the door body; the hinge assembly comprises a first shaft and a second shaft fixed to the box body, a guide portion and a guide portion arranged on the door body; the first shaft cooperates with the guide portion, and the second shaft cooperates with the guide portion; during the whole process of the door body opening from a closed state to an eighth angle G8, the center point I of the axis moves relative to the door body to form a trajectory line of the center point of the axis; the door body opening angle is When the instantaneous displacement of the center point of the axis relative to the trajectory line of the center point of the axis is recorded as the instantaneous midpoint displacement Among them, the instantaneous midpoint displacement Pointing to the plane where the first body side wall and the access opening are located; wherein, Belongs to any value among 0°~G8; The refrigerator of the present invention makes the door body not interfere with the storage cabinet when opening, and makes the door body open to an obtuse angle in the storage cabinet, so that the door body can be fully opened in the storage cabinet, which is convenient for users to take and put items. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 is a three-dimensional diagram of a refrigerator of the present invention;

[0078] Figure 2 is a top view of the refrigerator of the present invention;

[0079] Figure 3 It is a partial structural schematic diagram of a door body coordinate system X1O1Y1 of a door body of a refrigerator of the present invention;

[0080] Figure 4 It is a partial structural schematic diagram of the door body of the refrigerator of the present invention;

[0081] Figure 5 It is a schematic diagram of the relative positions of the guide track line, the guide track line and the axis center point track line on the door body of the refrigerator of the present invention;

[0082] Figure 6 This is a view of the hinge of the refrigerator door of the present invention when it is in a closed state;

[0083] Figure 7 The door of the refrigerator of the present invention is opened to The view at the hinge.

[0084] Figure 8 The door of the refrigerator of the present invention is opened to The view at the hinge.

[0085] Fig. 9 The door of the refrigerator of the present invention is opened to The view at the hinge.

[0086] Fig.10 The door of the refrigerator of the present invention is opened to The view at the hinge.

[0087] Fig.11 The door of the refrigerator of the present invention is opened to The view at the hinge.

[0088] Fig.12 The door of the refrigerator of the present invention is opened to The view at the hinge.

[0089] Fig.13 The door of the refrigerator of the present invention is opened to The view at the hinge.

[0090] Fig.14 The door of the refrigerator of the present invention is opened to The view at the hinge.

[0091] Fig.15 It is a schematic diagram of the motion trajectory of the first side edge W, the second side edge N and the side sealing edge F of the refrigerator of the present invention relative to the hinge;

[0092] Fig.16It is a schematic diagram of the movement of the first shaft relative to the guide part and the second shaft relative to the guide part of the refrigerator of the present invention;

[0093] Fig.17 The door of the refrigerator of the present invention is opened to A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion;

[0094] Fig.18 The door of the refrigerator of the present invention is opened to A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion;

[0095] Fig.19 The door of the refrigerator of the present invention is opened to A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion;

[0096] Fig. 20 The door of the refrigerator of the present invention is opened to A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion;

[0097] Fig.21 The door of the refrigerator of the present invention is opened to A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion;

[0098] Fig. 22 The door of the refrigerator of the present invention is opened to A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion;

[0099] Fig.23 The door of the refrigerator of the present invention is opened to A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion;

[0100] Fig.24 The door of the refrigerator of the present invention is opened to A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion;

[0101] Fig.25 It is a schematic diagram of the relative positions of the first shaft relative to the guide part and the second shaft relative to the guide part during the second stage of opening of the door of the refrigerator of the present invention;

[0102] Fig.26 It is a schematic diagram of the relative positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of the refrigerator of the present invention from G5 to G6 in the second stage;

[0103] Fig. 27It is a schematic diagram of the relative positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the third stage of opening of the door of the refrigerator of the present invention;

[0104] Fig.28 It is a schematic diagram of the relative positions of the door body and the refrigerator body when the door body of the refrigerator of the present invention is closed;

[0105] Fig.29 is the door opening angle of the refrigerator of the present invention Schematic diagram of the relative position of the door body and the box body;

[0106] Fig.30 is the door opening angle of the refrigerator of the present invention Schematic diagram of the relative position of the door body and the box body;

[0107] Fig.31 is the door opening angle of the refrigerator of the present invention Schematic diagram of the relative position of the door body and the box body when the angle is 90°;

[0108] Fig.32 is the door opening angle of the refrigerator of the present invention Schematic diagram of the relative position of the door body and the box body;

[0109] Fig.33 is a schematic diagram showing the movement of the first shaft relative to the guide part and the second shaft relative to the guide part during the door opening process of a conventional refrigerator compared with the refrigerator of the present invention;

[0110] Fig.34 Schematic diagram of the relative positions of the door and the cabinet of a conventional refrigerator in comparison with the refrigerator of the present invention at various stages of opening from a closed state to a maximum angle;

[0111] Fig.35 It is a comparison diagram of the position of the door of the refrigerator of the present invention when it is opened to G1 and the position of the door when it is rotated from the closed state to G1 with the center point I of the closed axis as the rotation axis;

[0112] Fig.36 It is a comparison diagram of the position of the door of the refrigerator of the present invention when it is opened to G2 and the position of the door when it is rotated from the state of opening to G1 to G2 with the center point I of the axis when it is opened to G2 as the rotation axis;

[0113] Fig.37 It is a comparison diagram of the position of the door of the refrigerator of the present invention when it is opened to G3 and the position of the door when it is rotated from the state of opening to G2 to G3 with the center point I of the axis when it is opened to G3 as the rotation axis;

[0114] Fig.38 It is a comparison diagram of the position of the door of the refrigerator of the present invention when it is opened to G4 and the position of the door when it is rotated from the state of opening to G3 to G4 with the center point I of the axis when it is opened to G4 as the rotation axis;

[0115] Fig.39 It is a comparison diagram of the position of the door of the refrigerator of the present invention when it is opened to G5 and the position of the door when it is rotated from the state of opening to G4 to G5 with the center point I of the axis when it is opened to G5 as the rotation axis;

[0116] Fig.40 It is a comparison diagram of the position of the door of the refrigerator of the present invention when it is opened to G6 and the position of the door when it is rotated from the state of opening to G5 to G6 with the center point I of the axis when it is opened to G6 as the rotation axis;

[0117] Fig.41 It is a comparison diagram of the position of the door of the refrigerator of the present invention when it is opened to G7 and the position of the door when it is opened to G6 and rotated to G6 with the axis center point I when it is opened to G7 as the rotation axis;

[0118] Fig.42 The door of the refrigerator of the present invention is opened to G max The position of the door body from opening to G6 state to opening to G max When the axis center point I is the rotation axis, rotate to G max Position comparison chart when

[0119] Fig.43 The door opening angle of the refrigerator of the present invention is and Comparison of translational motion at two angles;

[0120] Fig.44 Schematic diagram of the relative position relationship between the axis center point trajectory line of the refrigerator of the present invention and the middle plane of the door body;

[0121] Fig.45 It is a schematic diagram of the movement of the first axis relative to the guide part and the second axis relative to the guide part of the refrigerator of the present invention and their relative positions with the first angle bisector plane and the second angle bisector plane;

[0122] Fig.46 is a schematic diagram of the relative positions of the center point of the axis, the first angle bisector plane, and the second angle bisector plane when the door of the refrigerator of the present invention is opened to the fourth angle G4;

[0123] Fig.47 It is a schematic diagram of the relative positions of the first axis, the second axis, the first angle bisector plane and the second angle bisector plane when the door of the refrigerator of the present invention is in a closed state;

[0124] Fig.48 is a schematic structural diagram of a refrigerator of the present invention having a door body with another arrangement of guide track lines when the door body is closed;

[0125] Fig.49 is a schematic diagram of another arrangement form of the second hinge member of the refrigerator of the present invention;

[0126] Fig.50 It is a schematic diagram of another arrangement form of the second hinge of the refrigerator of the present invention;

[0127] Fig.51 is a schematic diagram of various parameters when the door of the refrigerator of the present invention is in a closed state;

[0128] Fig.52 is a schematic diagram of various parameters when the door of the refrigerator of the present invention is opened to the maximum angle;

[0129] Fig.53 is a schematic diagram of the door of the refrigerator of the present invention when it is closed in the coordinate system XOY;

[0130] Fig.54 is a schematic diagram of the door of the refrigerator of the present invention when it is rotated by θ° in the coordinate system XOY;

[0131] Fig.55 is a schematic diagram of a refrigerator door of the present invention when the first axis moves along an arc;

[0132] Fig.56 is a schematic diagram of the door of the refrigerator of the present invention when it is in a closed state in the coordinate system XOY;

[0133] Fig.57 is a schematic diagram of the door of the refrigerator of the present invention when it is opened to the maximum angle in the coordinate system XOY;

[0134] Fig.58 is a schematic diagram of the door of the refrigerator of the present invention when the opening angle is an acute angle in the coordinate system XOY;

[0135] Fig.59 It is a schematic diagram of the door of the refrigerator of the present invention when the opening angle is right angle in the coordinate system XOY.

[0136] In the above figures: box body 10; storage cabinet 100; door body 30; door front wall 31; door side wall 32; first side edge W; second side edge N; side sealing edge F; hinge plate 40; connecting part 401; extension part 402; door seal strip 5;

[0137] A first axis 41; a second axis 42;

[0138] First central axis P; second central axis Q; reference plane M0; first reference plane M1; second reference plane M2;

[0139] Guiding portion 50; guiding trajectory line S; guiding starting point P0; first guiding point P1; second guiding point P2; third guiding point P3; fourth guiding point P4; fifth guiding point P5; sixth guiding point P6; seventh guiding point P7; eighth guiding point P8;

[0140] Guide portion 60; guide trajectory line K; guide starting point Q0; first guide point Q1; second guide point Q2; third guide point Q3; fourth guide point Q4; fifth guide point Q5; sixth guide point Q6; seventh guide point Q7; eighth guide point Q8. DETAILED DESCRIPTION

[0141] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that elements, structures, and features in one embodiment may also be beneficially combined in other embodiments without further description.

[0142] 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 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 a limitation on the present invention.

[0143] The terms "first", "second", "third", "fourth", and "fifth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", "fourth", and "fifth" may explicitly or implicitly include one or more of the features.

[0144] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0145] 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.

[0146] Reference Figure 1 The refrigerator includes a cabinet 10 having a storage chamber, and a door 30 connected to the cabinet 10 to open and close the storage chamber.

[0147] In some embodiments of the present application, the box body 10 defines a plurality of storage chambers for storing items. A loading and unloading opening is formed at the front end of the storage chamber to place food into the storage chamber or take food out of the storage chamber; the refrigerator has a refrigeration device for supplying cold air to the storage chamber to store items rotating in the storage chamber at low temperatures. A rotatable door body 30 is provided on the box body 10 to open or close the loading and unloading opening of the storage chamber.

[0148] Specifically, the door body 30 is rotatably connected to the box body 10 through a hinge assembly located at an upper portion and a hinge assembly located at a lower portion.

[0149] In some embodiments of the present application, the hinge assembly includes a first hinge component and a second hinge component, and the first hinge component cooperates with the second hinge component and can rotate relative to each other.

[0150] The box body 10 includes a first body side wall and a second body side wall (i.e., a left side wall and a right side wall of the box body 10) that are arranged opposite to each other; a first hinge is arranged on the box body 10 and close to the first body side wall, and a second hinge is arranged at an end of the door body 30 close to the first hinge, and the first hinge cooperates with the second hinge to allow the box body 10 and the door body 30 to rotate relative to each other. The door body 30 includes a door front wall 31 that is away from the box body 10 when the door body 30 is closed, a door rear wall 33 that is arranged opposite to the door front wall 31, and a door side wall 32 that is close to the first hinge and connected to the door front wall 31. For example, when the first hinge is located on the right side of the box body 10, the right side of the door body 30 when it is closed is the door side wall 32; when the first hinge is located on the left side of the box body 10, the left side of the door body 30 when it is closed is the door side wall 32.

[0151] The door front wall 31 and the door side wall 32 of the door body 30 intersect to form a first side edge W, and the door side wall 32 intersects with the door rear wall 33 to form a second side edge N. When the door body 30 is closed, the first side edge W is located on the side of the second side edge N away from the box body 10. 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 (similarly, the theoretical second side edge N is the intersection line of the two planes of the door side wall 32 and the door rear wall 33); in actual production and processing settings, the intersection of the door front wall 31 and the door side wall 32 is a rounded transition setting, thereby forming a curved surface at the intersection of the door front wall 31 and the door side wall 32; on the curved surface at the intersection of the door front wall 31 and the door side wall 32, any straight line extending along the height direction of the door body 30 can represent the first side edge W (the same applies to the second side edge N). In this application, for the convenience of description, the theoretical first side edge W and the theoretical second side edge N are used for description. In addition, the plane passing through the centroid of the door body 30 and parallel to the door front wall 31 is recorded as the middle plane C; when the door body 30 is opened, the middle plane C moves with the door body 30. It should be noted here that in the relevant technical solutions involving the middle plane C in the present invention, the distance between the middle plane C and the door front wall 31 or the door rear wall 33 is less than the distance between the middle plane C and the plane where the access opening of the box body 10 is located when the door body 30 is closed. That is, in the relevant technical solutions involving the middle plane C in the present invention, the corresponding door rear wall 33 is located on the side of the plane where the access opening of the box body 10 is located away from the box rear wall when the door body 30 is closed.

[0152] In some embodiments of the present application, a door seal 5 is provided on the door rear wall 33; when the door body 30 is closed, the door seal 5 fits with the front end face of the box body surrounding the access opening to effectively seal the connection between the door body 30 and the box body 10, thereby ensuring that the door body 30 seals the access opening to prevent cold air from escaping. It can be set that the door seal 5 is annular; the edge of the door seal 5 close to the door side wall 32 and away from the door front wall 31 is marked as a side seal edge F. The door seal 5 is located between the door rear wall 33 and the front end face of the box body, and the door rear wall 33 is located on the side of the plane where the access opening of the box body 10 is located close to the door seal 5.

[0153] In some embodiments of the present application, reference Figures 2 to 3, the first hinge member includes a hinge plate 40, a first axis 41 and a second axis 42 arranged on the hinge plate 40. The hinge plate 40 includes: a connecting portion 401 connected to the box body 10 and close to the side wall of the first body, and an extending portion 402 extending forward from the connecting portion 401. The connecting portion 401 can be fastened to the top wall of the box body 10 by fasteners such as screws, pins and bolts, and the extending portion 402 is in the shape of a horizontal plate. Specifically, for the hinge at the upper end of the door body 30, the connecting portion 401 is connected to the top wall of the box body 10. 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. The first axis 41 and the second axis 42 are formed on the extending portion 402 of the first hinge member; wherein the second axis 42 is located on the side of the first axis 41 away from the side wall of the first body.

[0154] The second hinge member includes: a guide portion 50 and a guide portion 60 located at the end of the door body 30 near the first hinge member; wherein the first axis 41 is adapted to the guide portion 50, and the second axis 42 is adapted to the guide portion 60; during the process of the door body 30 rotating to open or close, the first axis 41 moves relative to the guide portion 50, and the second axis 42 moves relative to the guide portion 60.

[0155] In some embodiments of the present application, the first shaft 41 makes a curved motion relative to the door body 30 under the guidance of the guide portion 50 , and the second shaft 42 makes a curved motion relative to the door body 30 under the guidance of the guide portion 60 .

[0156] The first shaft 41 and the second shaft 42 are formed on the first hinge member connected to the box body 10 to form a limited axis for guiding the movement of the door body 30. Specifically, the first shaft 41 and the second shaft 42 extend in the vertical direction (the height direction of the box body 10) to adapt to the guide portion 50 or the guide portion 60 provided on the door body 30.

[0157] The built-in refrigerator is a refrigerator that is embedded as a whole in a customized storage cabinet. The end face of the storage cabinet defining its opening is recorded as the opening end face. The refrigerator is embedded flat in the storage cabinet. When the door body of the refrigerator is closed, the door front wall 31 of the door body 30 is flush with the opening end face of the storage cabinet. In the present invention, the first shaft 41 cooperates with the guide part 50, and the second shaft 42 cooperates with the guide part 60, so that the door body 30 moves inward by a certain distance, so that when the user opens and closes the door body 30 of the refrigerator, the door body 30 of the refrigerator will not collide with the storage cabinet, effectively avoiding scratches on the storage cabinet or the door body of the refrigerator. In addition, the door body 30 of the refrigerator placed in the storage cabinet is opened from a closed state, and the maximum angle that the door body 30 can open is not less than 115° (can be set, the maximum angle is not less than 120°), so that the door body of the refrigerator can be fully opened in the embedded state, and it is convenient to take things.

[0158] It should be noted that the "flush" in the above-mentioned flushness between the door front wall 31 and the opening end face of the storage cabinet 100 includes being on the same plane, or the distance between the two planes is not greater than 2 mm; specifically, the door front wall 31 is located on the side of the opening end face of the storage cabinet 100 away from the loading and unloading port and the distance between the two planes is not greater than 2 mm; or the door front wall 31 is located on the side of the opening end face of the storage cabinet 100 close to the loading and unloading port and the distance between the two planes is not greater than 2 mm.

[0159] In some embodiments of the present application, the first shaft 41 and the second shaft 42 are provided on the extension part 402 at the upper and lower ends of the door body 30, and the guide part 50 and the guide part 60 are provided at the upper and lower ends of the door body 30. It should be noted that the setting of this embodiment is not limited to being set at both the upper and lower ends of the door body 30, and it is set as needed to connect the door body 30 and the box body 10.

[0160] In some embodiments of the present application, Figure 2-Figure 3 As shown, the 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.

[0161] When the refrigerator is placed in the storage cabinet 100 for use, in order to prevent factors such as uneven ground and deformation of the storage cabinet 100, when the storage cabinet 100 is set in size, the distance α' between the storage cabinet 100 and the side of the refrigerator (the first body side wall, i.e., the reference plane M0) is set. In order to ensure that the door body 30 of the refrigerator opens normally, the first side edge W of the door body 30 cannot exceed the side of the box body 10 (reference plane M0) too much during the rotation process, so as to avoid the first side edge W colliding with the storage cabinet 100 and causing the door body 30 to fail to open normally.

[0162] In some embodiments of the present application, α` is any value between 3 and 5 mm.

[0163] In some embodiments of the present application, α`=3 mm; that is, the distance between the door side wall of the door body 30 and the containing cabinet is 3 mm.

[0164] To meet the above requirements, the door body 30 needs to be able to move inward during the rotation process, so that the first side edge W does not exceed the side surface (reference plane M0) of the box body 10 too much. Taking the hinge plate 40 being arranged on the right side of the door body 30 (in this example, the right side wall of the box body 10 is the first body side wall) as an example, the inner side is the left side, that is, the door body 30 needs to be able to move to the left; taking the hinge plate 40 being arranged on the left side of the door body 30 as an example, the inner side is the right side, that is, the door body 30 needs to be able to move to the right.

[0165] In some embodiments of the present application, the central axis of the first axis 41 is recorded as the first central axis P, and the central axis of the second axis 42 is recorded as the second central axis Q.

[0166] In some embodiments of the present application, Figure 3 As shown, in the projection of the top wall of the box body 10, the second central axis Q is located on the side of the first central axis P away from the plane where the first body side wall and the access opening are located.

[0167] In some embodiments of the present application, in the projection of the top wall of the box body 10, the second center axis Q is located on the side of the first center axis P away from the first body side wall and the access port, and the angle between the second center axis Q and the straight line QP where the first center axis P is located and the first body side wall is any value between 60° and 80°.

[0168] In some embodiments of the present application, when the door body 30 is closed, in the projection of the plane where the top wall of the box body 10 is located, the second center axis Q is located on the side of the first center axis P away from the door side wall 32 and close to the door front wall 31, and the angle between the second center axis Q and the straight line QP where the first center axis P is located and the door front wall 31 is any value between 10° and 20°.

[0169] In some embodiments of the present application, the guide portion 50 is configured as a guide groove, and the guide portion 60 is configured as a guide groove. The guide groove is a curved groove, and the guide groove is a curved groove. The guide groove is located on one side of the guide groove close to the first side edge W.

[0170] In some embodiments of the present application, the center trajectory line of the guide portion 50 is recorded as the guide trajectory line S, and the center trajectory line of the guide portion 60 is recorded as the guide trajectory line. Among them, the trajectory line of the first central axis P guided by the guide portion 50 for relative movement is the guide trajectory line S, and the trajectory line of the second central axis Q guided by the guide portion 60 for relative movement is the guide trajectory line K. When the guide portion 50 is configured as a guide groove, and the guide portion 60 is configured as a guide groove structure, the center trajectory line of the guide groove is recorded as the guide trajectory line S, and the center trajectory line of the guide groove is the guide trajectory line K.

[0171] In some embodiments of the present application, along the direction from the end of the door body 30 away from the door side wall 32 to the door side wall 32, the distance between the guide trajectory line S and the door front wall 31 first increases and then decreases, and the distance between the guide trajectory line K and the door front wall 31 first increases and then decreases.

[0172] In some embodiments of the present application, the guide track line S first extends from the side away from the door side wall 32 to the direction away from the door front wall 31 and close to the door side wall 32, and then extends to the side close to the door front wall 31 and the door side wall 32; the guide track line K is a curve, and it also first extends from the side away from the door side wall 32 to the direction away from the door front wall 31 and close to the door side wall 32, and then extends to the side close to the door front wall 31 and the door side wall 32. The guide track line S is located on the side of the guide track line K close to the first side edge W.

[0173] The guide track line S includes a first guide segment and a second guide segment connected to an end of the first guide segment close to the door side wall 32. The first guide segment extends from an end away from the door side wall 32 to a direction close to the door side wall 32 and away from the door front wall 31, and the second guide segment extends from an end of the first guide segment close to the door side wall to a direction close to the door side wall 32 and the door front wall 31.

[0174] The guide track line K includes a first guide section and a second guide section connected to an end of the first guide section close to the door side wall 32. The first guide section extends from an end away from the door side wall 32 to a direction close to the door side wall 32 and away from the door front wall 31, and the second guide section extends from an end of the first guide section close to the door side wall to a direction close to the door side wall 32 and the door front wall 31.

[0175] In some embodiments of the present application, Figure 3 As shown, in the projection of the plane where the top wall of the box body 10 (door body 30) is located, the door side wall 32 is the Y1 axis, and the plane passing through the first side edge W and perpendicular to the door side wall 32 is the X1 axis, that is, the plane where the door front wall 31 is located is the X1 axis (it can be set that the door front wall 31 is perpendicular to the door side wall 32); wherein, the X1 axis is perpendicular to the Y1 axis and intersects at the origin O1 (the first side edge W); the direction from the door front wall 31 to the door rear wall 33 is the positive direction of the Y1 axis, and the direction from the door side wall 32 to the opposite end of the door side wall 32 on the door body 30 is the positive direction of the X1 axis, forming a two-dimensional door body coordinate system X1O1Y1. It should be noted that the door body coordinate system X1O1Y1 is a two-dimensional coordinate system that is stationary relative to the door body 30.

[0176] In some embodiments of the present application, in the door body coordinate system X1O1Y1, the function corresponding to the guide trajectory line S in the coordinate system X1O1Y1 is recorded as Y1=F(X1); Y1=F(X1) is a piecewise function, and the piecewise function is a continuous function; then, at each segmentation point, its left limit is equal to its right limit.

[0177] In some embodiments of the present application, in the door body coordinate system X1O1Y1, Y1=F(X1) is as follows:

[0178]

[0179] Among them, X 10 >X 14 >X 18 >0;F1(X 14 )=F2(X 14 );

[0180] Y1=F1(X1) is the function of the first guide segment in the coordinate system X1O1Y1;

[0181] Y1=F2(X1) is a function of the second guide segment in the coordinate system X1O1Y1.

[0182] The end point of the first guide segment away from the door side wall 32 is recorded as the starting guide point P0; the connection point of the first guide segment and the second guide segment is recorded as the fourth guide point P4; the end of the second guide segment away from the first track segment is recorded as the eighth guide point P8. Correspondingly, in the coordinate system X1O1Y1, the coordinate of P0 is (X 10 ,F1(X 10 )), the coordinates of P4 are (X 14 , F4(X 14 )), the coordinates of P8 are (X 18 , F2(X 18 )). Among them, X 10 >X 14 >X 18 >0.

[0183] In some embodiments of the present application, |X 10 -X 14 |:|X 14 -X 18 |>1. The projection length of the first guide segment on the X1 axis is greater than the projection length of the second guide segment on the X1 axis.

[0184] In some embodiments of the present application, in the direction perpendicular to the door side wall 32, the distance |P0P4|` between the starting guide point P0 and the fourth guide point P4 is greater than the distance |P4P8|` between the fourth guide point P4 and the eighth guide point P8. That is, |P0P4|`:|P4P8|`>1.

[0185] In some embodiments of the present application, the angle between the straight line P0P4 where the starting guide point P0 and the fourth guide point P4 are located and the front wall 31 of the door is recorded as β1; the angle between the straight line P4P8 where the fourth guide point P4 and the eighth guide point P8 are located and the front wall 31 of the door is recorded as β2; wherein, β1<β2; β1∈(0°, 90°), β2∈(0°, 90°).

[0186] In some embodiments of the present application, tanβ2>1>tanβ1>0.

[0187] In some embodiments of the present application, the angle between the straight line P0P4 where the starting guide point P0 and the fourth guide point P4 are located and the door side wall 32 is recorded as β1`; the angle between the straight line P4P8 where the fourth guide point P4 and the eighth guide point P8 are located and the door side wall 32 is recorded as β2`; wherein, β2`<β1`; β1`∈(0°, 90°), β2`∈(0°, 90°).

[0188] In some embodiments of the present application, tanβ1`>1>tanβ2`>0.

[0189] In some embodiments of the present application, when the door body 30 is in a closed state, the first central axis P is located at a starting guide point P0 relative to the door body 30; when the first central axis P moves to a fourth guide point P4, the opening angle of the door body 30 is a fourth angle G4; when the first central axis P moves to an eighth guide point P8, the opening angle of the door body 30 is an eighth angle G8 (which can be set to the maximum angle G that the door body 30 installed in the storage cabinet 100 can open). max The displacement of the first axis 41 relative to the door body 30 toward the door side wall 32 when the door body 30 is opened from the closed state to the fourth angle G4 is greater than the displacement of the first axis 41 relative to the door body 30 toward the door side wall 32 when the door body 30 is opened from the fourth angle G4 to the maximum angle G8. max = G8, the first shaft 41 is displaced relative to the door body 30 toward the door side wall 32.

[0190] In some embodiments of the present application, the slope of the straight line between the starting guide point P0 and the fourth guide point P4 is recorded as F`1, and the slope of the straight line between the fourth guide point P4 and the eighth guide point P8 is recorded as F`2; wherein F`2>0>F`1.

[0191] In some embodiments of the present application, F'2>1>|F'1|>0. That is, the change rate of the straight line where the two end points of the first guide segment are located is smaller than the change rate of the straight line where the two end points of the second guide segment are located.

[0192] In some embodiments of the present application, the overall extension trend of the first guide segment is gentler than the overall extension trend of the second guide segment.

[0193] In some embodiments of the present application, F`1<0, and |F`1| is any value between 0.25 and 0.35; F`2>0, and F`2 is any value between 1.1 and 1.4. That is, the lateral length (X-axis direction) of the first guide line is greater than its longitudinal length (Y-axis direction), and the lateral length (X-axis direction) of the second guide line is less than its longitudinal length (Y-axis direction). That is, |X 10 -X 14 |>|F1(X 14 )-F1(X 10 )|,|X 14 -X 18|<|F2(X 18 )-F1(X 14 )|.

[0194] In some embodiments of the present application, the second derivative of Y1=F(X1) is recorded as F``(X1). Wherein, F``(X1)>0. That is, Y1=F(X1) is a convex function. The guide track line S is convex toward the side close to the door rear wall 32.

[0195] In some embodiments of the present application, in the door body coordinate system X1O1Y1, the function corresponding to the guide trajectory line K in the coordinate system X1O1Y1 is recorded as Y1=K(X1); Y1=K(X1) is a piecewise function, and the piecewise function is a continuous function; then, at each segment point, its left limit is equal to its right limit.

[0196] In some embodiments of the present application, in the door body coordinate system X1O1Y1, Y1=K(X1) is as follows:

[0197]

[0198] Among them, X 10 `>X 16 `>X 18 `>0;K1(X 16 `)=K2(X 16 `);

[0199] Y1=K1(X1) is the function of the first guide segment in the coordinate system X1O1Y1;

[0200] Y1=K2(X1) is a function of the second guide segment in the coordinate system X1O1Y1.

[0201] In some embodiments of the present application, the second derivative of Y1=K(X1) is recorded as K``(X1). Wherein, K``(X1)>0. That is, Y1=K(X1) is a convex function. The guide track line K is convex toward the side close to the door rear wall 32.

[0202] In some embodiments of the present application, the guide trajectory line S has a starting guide point P0, a first guide point P1, a second guide point P2, a third guide point P3, a fourth guide point P4, a fifth guide point P5, a sixth guide point P6, a seventh guide point P7, and an eighth guide point P8, which are successively close to the door side wall 32.

[0203] In some embodiments of the present application, the fourth guiding point P4 is the point where the distance between the guiding trajectory line S and the door front wall 31 is the largest.

[0204] In some embodiments of the present application, the guide trajectory line S includes a first guide line and a second guide line connected to an end of the first guide line close to the door side wall 32 .

[0205] In some embodiments of the present application, the first guide line is a straight line, and the second guide line is a curve. The second guide point P2 is the connection point of the first guide line and the second guide line. That is, the guide trajectory line S extends from the starting guide point P0 along a straight line away from the door front wall 31 and close to the door side wall 32 to the second guide point P2, and then extends from the second guide point P2 along a curve away from the door front wall 31 and close to the door side wall 32 to the fourth guide point P4, and then extends from the fourth guide point P4 along a curve close to the door front wall 31 and the door side wall 32 to the eighth guide point P8.

[0206] When the movement of the first shaft 41 relative to the guide portion 50 and the movement of the second shaft 42 relative to the guide portion 60 is described later, the guide trajectory line S including a straight first guide line and a curved second guide line will be used as an example for description.

[0207] In some embodiments of the present application, the starting guiding point P0 and the eighth guiding point P8 are two opposite end points of the guiding trajectory line S, respectively.

[0208] In some embodiments of the present application, the guide trajectory line K has a starting guide point Q0, a first guide point Q1, a second guide point Q2, a third guide point Q3, a fourth guide point Q4, a fifth guide point Q5, a sixth guide point Q6, a seventh guide point Q7, and an eighth guide point Q8, which are successively close to the door side wall 32.

[0209] In some embodiments of the present application, along the direction from the end of the door body 30 away from the door side wall 32 to the door side wall 32, the distance between the guide track line K and the door front wall 31 increases first and then decreases. Among them, it can be set that the distance between the sixth guide point Q6 and the door front wall 31 is the largest. The guide track line K extends from the starting guide point Q0 to the direction away from the door front wall 31 and close to the door side wall 32 along the curve, passing through the first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, and then extends from the sixth guide point Q6 along the curve to the direction close to the door side wall 32 and the door front wall 31 to the eighth guide point Q8.

[0210] In some embodiments of the present application, see Figure 5 The maximum distance between the guide track line S and the door front wall 31 is the fourth guide point P4, and the maximum distance between the guide track line K and the door front wall 31 is the sixth guide point Q6. The angle between the straight line P4Q6 where the fourth guide point P4 and the sixth guide point Q6 are located and the door front wall 31 is recorded as the first angle σ1.

[0211] It should be noted that the range of the line-plane angle is 0° to 90°. Relative to the door front wall 31, the straight line P4Q6 can be set to extend from one end close to the door front wall 31 to the side close to the door rear wall 33 and the door side wall 32 (such as Figure 5The straight line P4Q6 can also be arranged to extend from one end close to the door front wall 31 to the side close to the door rear wall 33 and away from the door side wall 32 (not shown in the figure). The first angle σ1 is the non-obtuse angle value of the angle between the straight line P4Q6 and the door front wall 31.

[0212] In some embodiments of the present application, the first angle σ1 is any value between 85° and 90°.

[0213] In some embodiments of the present application, the straight line P4Q6 where the fourth guide point P4 and the sixth guide point Q6 are located is approximately perpendicular to the door front wall 31. The first angle σ1 is any value between 89° and 90°.

[0214] In some embodiments of the present application, the angle between the straight line P4Q6 where the fourth guide point P4 and the sixth guide point Q6 are located and the door side wall 32 is recorded as a fourth angle σ4 (not shown in the figure). The fourth angle σ4 is any value between 0° and 5°.

[0215] In some embodiments of the present application, the straight line P4Q6 where the fourth guide point P4 and the sixth guide point Q6 are located is approximately parallel to the door side wall 32, and the fourth angle σ4 is any value between 0° and 1°.

[0216] As above, the range of the line-plane angle is 0° to 90°. With respect to the door side wall 32, the straight line P4Q6 can be set to extend from its end close to the door front wall 31 to the side close to the door rear wall 33 and the door side wall 32; the straight line P4Q6 can also be set to extend from its end close to the door front wall 31 to the side close to the door rear wall 33 and away from the door side wall 32. The fourth angle σ4 is the non-obtuse angle value of the angle formed by the straight line P4Q6 and the door side wall 32.

[0217] In some embodiments of the present application, the angle between the straight line P4Q6 and the door front wall 31 - the first angle σ1 is a line-plane angle and the angle between the straight line P4Q6 and the door side wall 32 are both line-plane angles, and the line-plane angle range is 0° to 90°.

[0218] As mentioned above, the limitation of the first angle σ1 and the fourth angle σ4 further limits the relative positions of the guide trajectory line S and the guide trajectory line K whose distance from the front wall of the door first increases and then decreases, thereby limiting the movement trends of the first axis relative to the guide portion 50 and the second axis relative to the guide portion 60 relative to the first body side wall and the pick-up and release port during the door body opening process, so that the movement has a tendency to approach the first body side wall and the pick-up and release port throughout the entire process, so that the door body 30 has a tendency to approach the second body side wall and away from the plane where the pick-up and release port is located relative to the box body throughout the entire process, so as to realize the door body moving inward and forward throughout the entire process.

[0219] In some embodiments of the present application, the starting guide point Q0 and the eighth guide point Q8 are the two opposite end points of the guide trajectory line K, respectively.

[0220] In some embodiments of the present application, the starting guide point P0 corresponds to the position of the first central axis P relative to the guide trajectory line S when the door body 30 is closed; the eighth guide point P8 corresponds to the position of the first central axis P relative to the guide trajectory line S when the door body 30 is opened to the eighth angle G8. The starting guide point Q0 corresponds to the position of the second central axis Q relative to the guide trajectory line K when the door body 30 is closed; the eighth guide point Q8 corresponds to the position of the second central axis Q relative to the guide trajectory line K when the door body 30 is opened to the eighth angle G8.

[0221] In some embodiments of the present application, when designing the second hinge, in order to avoid excessive force when closing the door body 30 and causing the door body 30 to move excessively toward the box body 10, an extension section is provided at one end of the guide track line S or the guide track line K close to the door front wall 31 to reserve space for the above situation. max In case that the force is too great and the guide door body moves excessively (due to deformation and other factors), an extension section is set at the end of the guide trajectory line S away from the door front wall 31 or the end of the guide trajectory line K close to the door side wall 32 to reserve space for the above situation. When the space is reserved at at least one of the two ends of the guide part 50 or the guide part 60, the starting guide point P0, the starting guide point Q0, the eighth guide point P8, and the eighth guide point Q8 are not the endpoints of the trajectory line where they are located; that is, the setting of the starting guide point P0, the starting guide point Q0, the eighth guide point P8, and the eighth guide point Q8 as the endpoints of the trajectory line where they are located is only an implementable method, which essentially corresponds to the position of the two hinge axes when the door body 30 is closed or opened to the maximum angle (the eighth angle), and is not limited by the endpoints of the trajectory line where they are located.

[0222] In some embodiments of the present application, the starting guide point P0 is located on the side of the starting guide point Q0 close to the door rear wall 33 and the door side wall 32, and the eighth guide point P8 is located on the side of the starting guide point Q0 close to the door front wall 31 and the door side wall 32.

[0223] In some embodiments of the present application, the eighth guide point Q8 is located on a side of the eighth guide point P8 close to the door rear wall 33 and the door side wall 32 .

[0224] In some embodiments of the present application, see Figure 3 As shown, in the normal direction (X axis) of the door side wall 32, the distance between the starting guide point Q0 and the eighth guide point Q8 is recorded as the first transverse distance E1, and the distance between the eighth guide point P8 and the eighth guide point Q8 is recorded as the second transverse distance E2. The first transverse distance E1 is any value between 25 mm and 30 mm, and the second transverse distance E2 is any value between 2 mm and 4 mm.

[0225] In some embodiments of the present application, along the normal direction (Y-axis) of the door front wall 31, the distance between the eighth guide point P8 and the eighth guide point Q8 along the normal direction of the door front wall 31 is recorded as the first longitudinal distance D1; the distance between the sixth guide point Q6 and the eighth guide point Q8 along the normal direction of the door front wall 31 is recorded as the second longitudinal distance D2; the distance between the starting guide point Q0 and the eighth guide point P8 along the normal direction of the door front wall 31 is recorded as the third longitudinal distance D3.

[0226] The first longitudinal distance D1 is any value between 10 mm and 14 mm, the second longitudinal distance D2 is any value between 3 mm and 4 mm, and the third longitudinal distance D3 is any value between 0 mm and 1 mm.

[0227] In some embodiments of the present application, the guide trajectory line S and the guide trajectory line K are limited to a rectangular frame with a horizontal length of 25mm to 30mm and a vertical length of 13mm to 18mm. The outer contour dimensions of the guide portion 50 (guide groove) and the guide portion 60 (guide groove) are set according to the diameter dimensions of the first shaft 41 and the second shaft 42, and the guide portion 50 and the guide portion 60 can be limited to a rectangular frame with a horizontal length of 35mm to 40mm and a vertical length of 23mm to 28mm. With the above arrangement, the arrangement of the guide portion 50 and the guide portion 60 is more compact, and the occupied area is small; it fully utilizes the size of the door body 30 along the direction perpendicular to the door side wall 32 (X axis), and reduces the size of the door body 30 along the direction perpendicular to the door front wall 31 (Y axis), reducing the occupation of the thickness dimension of the door body 30 by the guide portion 50 and the guide portion 60, so that it is also applicable when the door body 30 is thinned.

[0228] In some embodiments of the present application, see Figure 6 As shown, when the door body 30 is closed, the distance (gap) between the door side wall 31 and the storage cabinet 100 is recorded as L1, wherein L1 is not greater than 3 mm.

[0229] In some embodiments of the present application, the thickness of the door body 30 perpendicular to the direction of its front door wall 31 is L2, where L1:L2 is any value between 0.07 and 0.11. The relationship between the thickness of the door body 30 and the distance between the door side wall 31 and the inner wall of the storage cabinet 100 is defined above, so that under the setting of the hinge assembly of the present application, when the door body 30 is opened, its first side edge W does not collide with the inner wall of the storage cabinet 100, causing the door body 30 to be unable to open.

[0230] In some embodiments of the present application, see Figure 6As shown, the distance α' between the side wall of the refrigerator installed in the storage cabinet 100 and the inner wall of the storage cabinet 100 is greater than the distance between the door side wall 32 and the inner wall of the storage cabinet 100 when the door body 30 is closed; that is, α'>L1. When the door body 30 is closed, the door body 30 can effectively cover the refrigerator body, preventing the refrigerator body from bulging due to foaming and affecting the appearance.

[0231] In some embodiments of the present application, the second axis 42 is located on the side of the first axis 41 away from the second side edge N, and the guide portion 60 is located on the side of the guide portion 50 away from the first side edge W; the first axis 41 first moves relative to the guide portion 50 to the side away from the door front wall 31 and close to the door side wall 32, and then moves to the side close to the door front wall 31 and the door side wall 32; the second axis 42 first moves relative to the guide portion 60 to the side away from the door front wall 31 and close to the door side wall 32, and then moves to the side close to the door front wall 31 and the door side wall 32, so that the door body 30 can move a distance inward (in the direction close to the second body side wall) while rotating, so as to compensate for the distance of the first side edge W moving outward caused by the simple rotational movement of the door body 30, thereby controlling the distance that the first side edge W exceeds the first body side wall, so as to limit the distance that the first side edge W exceeds the first body side wall to within the range of the gap between the storage cabinet 100 and the first body side wall, so as to avoid the first side edge W colliding with the storage cabinet and causing the door body 30 to be unable to open.

[0232] In some embodiments of the present application, the distance between the first central axis P and the door front wall 31 when the door body 30 is in a closed state is equal to the distance between the first central axis P and the door front wall 31 when the door body 30 is opened to 90 degrees.

[0233] In some embodiments of the present application, the distance between the starting guiding point P0 on the guiding trajectory line S and the door front wall 31 is equal to the distance between the seventh guiding point P7 and the door front wall 31 .

[0234] In some embodiments of the present application, the straight line P0P7 where the starting guiding point P0 and the seventh guiding point P7 on the guiding trajectory line S are located is parallel to the door front wall 31 .

[0235] In some embodiments of the present application, when the door body 30 is in a closed state, the straight line P0P7 where the starting guide point P0 and the seventh guide point P7 on the guide trajectory line S are located is parallel to the plane where the access port is located.

[0236] In some embodiments of the present application, when the door body 30 is in a closed state, a straight line P0P7 where a starting guide point P0 and a seventh guide point P7 on the guide trajectory line S are located is perpendicular to the first body side wall.

[0237] Since the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42 are in a relative motion relationship, if the door body 30 is opened, with the guide portion 50 and the guide portion 60 as stationary reference objects, it is equivalent to the first shaft 41 moving under the restriction of the guide portion 50, and the second shaft 42 moving under the restriction of the guide portion 60. For the convenience of description, the present application adopts the guide portion 50 and the guide portion 60 as stationary reference objects, and the first shaft 41 and the second shaft 42 move relative to the reference objects for description.

[0238] In some embodiments of the present application, in the projection of the plane where the top wall of the box body 10 is located, the line segment PQ is recorded as the axis line segment PQ; the center of the axis line segment PQ is recorded as the axis center point I. Figure 6-Figure 24 As shown, the movement of the first axis 41 along the guide portion 50 is equivalent to the movement of the first center axis P along the guide trajectory S, and the movement of the second axis 42 along the guide portion 60 is equivalent to the movement of the second center axis Q along the guide trajectory K, so that the door body 30 can move a distance inward (in the direction close to the second body side wall) while rotating, so that the door body 30 does not interfere with the storage cabinet 100, ensuring that the door body 30 is effectively opened.

[0239] The movement of the door body 30 relative to the box body 10 is equivalent to the relative movement of the two in the plane where the top wall of the box body 10 is located (or in the 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 the relative movement in a two-dimensional plane. Since the first hinge member having the first axis 41 and the second axis 42 is fixed to the box body 10, and the second hinge member having the guide portion 50 and the guide portion 60 is located on the door body 30, in the plane where the top wall of the box body 10 is located, the movement of the first hinge member (axial line segment PQ) relative to the door body 30 (guide portion 50 and guide portion 60) is equivalent to the movement of the axial line segment PQ relative to the door body 30, and is also equivalent to the movement of the box body 10 relative to the door body 30.

[0240] In the following description, for the convenience of explanation, the movement of the axis line segment PQ relative to the second hinge member (the guide portion 50 and the guide portion 60) provided on the door body 30 in the plane where the top wall of the box body 10 is located is selected to represent the movement of the box body 10 relative to the door body 30. That is, the description of the relative movement of the present invention is described as the relative movement in a two-dimensional plane.

[0241] like Figure 6 As shown, in this embodiment, when the door body 30 is in a closed state, the first central axis P is located at the starting guide point P0 of the guide trajectory line S, and the second central axis Q is located at the starting guide point Q0 of the guide trajectory line K. That is, when the door body 30 is in a closed state, the first axis 41 is located at the end of the guide portion 50 away from the door side wall 32, and the second axis 42 is located at the end of the guide portion 60 away from the door side wall 32; the second axis 42 is located at the side of the first axis 41 close to the door front wall 31 and away from the door side wall 32.

[0242] In some embodiments of the present application, when the door body 30 is closed, relative to the door rear wall 33, the first axis 41 and the second axis 42 are both close to the door front wall 31. That is, when the door body 30 is closed, the first axis 41 and the second axis 42 are both located on the side of the middle plane C close to the door front wall 31.

[0243] In this embodiment, Figure 6-Figure 24 As shown, under the constraints of the guide portion 50 and the first axis 41, the guide portion 60 and the second axis 42, the refrigerator is opened at an eighth angle G8>90° (G max = G8) is used as an example. In the process of the door body 30 opening from the closed state to the eighth angle G8, when the door body 30 rotates to open to a specific angle, the relative position of the first shaft 41 relative to the guide portion 50 and the relative position of the second shaft 42 relative to the guide portion 60 are as follows:

[0244] In the following description, Indicates the opening angle of the door body 30. The opening angle when the door body 30 is closed The opening angle of the door 30 when it is opened relative to the box body 10 to open the access opening is a positive number;

[0245] In some embodiments of the present application, when the door body 30 is in a closed state, the opening angle The door rear wall 33 is parallel to the plane where the access opening is located. When the door body 30 continues to move from the closed state along the closing direction to further squeeze the door seal, the opening angle of the door body 30 is a negative number.

[0246] like Figure 6 As shown, the first central axis P is located at the starting guide point P0 of the guide trajectory line S, the second central axis Q is located at the starting guide point Q0 of the guide trajectory line K, and the axis center point I is located at the starting midpoint I0 relative to the door body 30.

[0247] like Figure 7 As shown, During the above opening process, the first center axis P makes a linear motion along the guide trajectory line S in the direction away from the door front wall 31 and close to the door side wall 32, and the second center axis Q makes a curved motion along the guide trajectory line K in the direction away from the door front wall 31 and close to the door side wall 32.

[0248] Above, the door body 30 opening angle The movement trend of the opening angle interval remains the same; the only difference is that the opening angle is different, the position of the first central axis P relative to the guide trajectory line S is different, and the position of the second central axis Q relative to the guide trajectory line K is different. When the door 30 is opened to the corresponding interval, any one of the opening angles can represent the relative positions of the first axis 41 and the guide portion 50, and the second axis 42 and the guide portion 60; specifically, Figure 7 As shown, Represents the position within the opening angle range, for comparison with when the door body 30 is opened to other states. Among them, 0°<G1<G2. Specifically, when the door body 30 is opened to G1, the positional relationship between the first central axis P and the guide trajectory line S and the second central axis Q and the guide trajectory line K is as follows.

[0249] like Figure 7 and Fig.17 As shown, , the door body 30 rotates and opens to G1. The first central axis P is located at the first guide point P1 of the guide trajectory line S, and the first guide point P1 is located on the side of the starting guide point P0 close to the door side wall 32 and the door rear wall 33. The second central axis Q is located at the first guide point Q1 of the guide trajectory line K, and the first guide point Q1 is located on the side of the starting guide point Q0 close to the door side wall 32 and the door rear wall 33; relative to the door body 30, the axis center point I moves to the first midpoint I1 along the axis line segment PQ, and the first midpoint I1 is located on the side of the starting midpoint I0 close to the door side wall 32 and the door rear wall 33.

[0250] like Figure 8 and Fig.18 As shown, , the door body 30 rotates and opens to G2. The first center axis P is located at the second guide point P2 of the guide trajectory line S, and the second guide point P2 is located on the side of the first guide point P1 close to the door side wall 32 and the door rear wall 33, and is located at the end point of the first guide line of the guide trajectory line S close to the door side wall 32. The second center axis Q is located at the second guide point Q2 of the guide trajectory line K, and the second guide point Q2 is located on the side of the first guide point Q1 close to the door side wall 32 and the door rear wall 33; relative to the door body 30, the axis center point I moves to the second midpoint I2 along the axis line segment PQ, and the second midpoint I2 is located on the side of the first midpoint I1 close to the door side wall 32 and the door rear wall 33. G2∈[16°, 25°] can be set to any value.

[0251] like Fig. 9 As shown, During the above opening process, the first center axis P makes a curved motion along the guide trajectory line S in the direction away from the door front wall 31 and close to the door side wall 32, and the second center axis Q makes a curved motion along the guide trajectory line K in the direction away from the door front wall 31 and close to the door side wall 32.

[0252] Above, the door body 30 opening angle The movement trend of the opening angle interval remains the same; the only difference is that the opening angle is different, the position of the first central axis P relative to the guide trajectory line S is different, and the position of the second central axis Q relative to the guide trajectory line K is different. When the door 30 is opened to the corresponding interval, any one of the opening angles can represent the relative positions of the first axis 41 and the guide portion 50, and the second axis 42 and the guide portion 60; specifically, Fig. 9 As shown, Represents the position within the opening angle range, for comparison with when the door body 30 is opened to other states. Among them, G2<G3<G4. Specifically, when the door body 30 is opened to G3, the positional relationship between the first central axis P and the guide trajectory line S and the second central axis Q and the guide trajectory line K is as follows.

[0253] like Fig. 9 and Fig.19 As shown, , the door body 30 rotates and opens to G3; the first center axis P is located at the third guide point P3 of the guide trajectory line S, and the third guide point P3 is located on the side of the second guide point P2 close to the door side wall 32 and the door rear wall 33; the second center axis Q is located at the third guide point Q3 of the guide trajectory line K, and the third guide point Q3 is located on the side of the second guide point Q2 close to the door side wall 32 and the door rear wall 33; relative to the door body 30, the axis center point I moves to the third midpoint I3 along the axis line segment PQ, and the third midpoint I3 is located on the side of the second midpoint I2 close to the door side wall 32 and the door rear wall 33.

[0254] like Fig.10 and Fig. 20 As shown, , the door body 30 rotates and opens to G4. The first central axis P is located at the fourth guide point P4 of the guide trajectory line S, and the fourth guide point P4 is located on the side of the third guide point Q3 close to the door side wall 32 and the door rear wall 33; at this time, the first central axis P is located at the point where the guide trajectory line S is the largest distance from the door front wall 31; the second central axis Q is located at the fourth guide point Q4 of the guide trajectory line K, and the fourth guide point Q4 is located on the side of the third guide point Q3 close to the door side wall 32 and the door rear wall 33; relative to the door body 30, the axis center point I moves to the fourth midpoint I4 along the axis line segment PQ, and the fourth midpoint I4 is located on the side of the third midpoint I3 close to the door side wall 32 and the door rear wall 33; G4∈[38°, 47°] can be set to any value.

[0255] like Fig.11 As shown, During the opening process, the door body 30 rotates from G4 to G6 to open; during the above opening process, the first center axis P makes a curved motion along the guide trajectory line S toward the direction close to the door front wall 31 and the door side wall 32, and the second center axis Q makes a curved motion along the guide trajectory line K toward the direction away from the door front wall 31 and close to the door side wall 32.

[0256] Above, the door body 30 opening angle The movement trend of the opening angle interval remains the same; the only difference is that the opening angle is different, the position of the first central axis P relative to the guide trajectory line S is different, and the position of the second central axis Q relative to the guide trajectory line K is different. When the door 30 is opened to the corresponding interval, any one of the opening angles can represent the relative positions of the first axis 41 and the guide portion 50, and the second axis 42 and the guide portion 60; specifically, Fig.11 As shown, Represents the position within the opening angle range, for comparison with when the door body 30 is opened to other states. Among them, G4<G5<G6. Specifically, when the door body 30 is opened to G5, the positional relationship between the first central axis P and the guide trajectory line S and the second central axis Q and the guide trajectory line K is as follows.

[0257] like Fig.11 and Fig.21 As shown, , the door body 30 rotates and opens to G5. The first central axis P is located at the fifth guide point P5 of the guide trajectory line S, and the fifth guide point P5 is located on the side of the fourth guide point P4 close to the door front wall 31 and the door side wall 32; the second central axis Q is located at the fifth guide point Q5 of the guide trajectory line K, and the fifth guide point Q5 is located on the side of the fourth guide point Q4 away from the door front wall 31 and close to the door side wall 32; relative to the door body 30, the axis center point I moves to the fifth midpoint I5 along the axis line segment PQ, and the fifth midpoint I5 is located on the side of the fourth midpoint I4 close to the door side wall 32 and the door rear wall 33.

[0258] like Fig.12 and Fig. 22 As shown, , the door body 30 rotates and opens to G6. The first central axis P is located at the sixth guide point P6 of the guide trajectory S, and the sixth guide point P6 is located on the side of the fifth guide point P5 close to the door front wall 31 and the door side wall 32; the second central axis Q is located at the sixth guide point Q6 of the guide trajectory K, and the sixth guide point Q6 is located on the side of the fifth guide point Q5 away from the door front wall 31 and close to the door side wall 32; the second central axis Q is located at the position where the guide trajectory K is the farthest from the door front wall 31; relative to the door body 30, the axis center point I moves to the sixth midpoint I6 along the axis line segment PQ, and the sixth midpoint I6 is located on the side of the fifth midpoint I5 close to the door side wall 32 and the door front wall 31; G6∈[86°, 90°] can be set to any value.

[0259] like Fig.13 As shown, , the door body 30 rotates from G6 to G8 to open; in the above opening process, the first center axis P makes a curved motion along the guide trajectory line S toward the direction close to the door front wall 31 and the door side wall 32, and the second center axis Q makes a curved motion along the guide trajectory line K toward the direction close to the door front wall 31 and the door side wall 32.

[0260] Above, the door body 30 opening angle The movement trend of the opening angle interval remains the same; the only difference is that the opening angle is different, the position of the first central axis P relative to the guide trajectory line S is different, and the position of the second central axis Q relative to the guide trajectory line K is different. When the door 30 is opened to the corresponding interval, any one of the opening angles can represent the relative positions of the first axis 41 and the guide portion 50, and the second axis 42 and the guide portion 60; specifically, Fig.13 As shown, Represents the position within the opening angle range, for comparison with when the door body 30 is opened to other states. Among them, G6<G7<G8. Specifically, when the door body 30 is opened to G5, the positional relationship between the first central axis P and the guide trajectory line S and the second central axis Q and the guide trajectory line K is as follows.

[0261] like Fig.13 and Fig.23 As shown, , the door body 30 rotates and opens to G7. The first central axis P is located at the seventh guide point P7 of the guide trajectory S, and the seventh guide point P7 is located on the side of the sixth guide point P6 close to the door front wall 31 and the door side wall 32; the second central axis Q is located at the seventh guide point Q7 of the guide trajectory K, and the seventh guide point Q7 is located on the side of the sixth guide point Q6 (the point where the guide trajectory K is the largest distance from the door front wall 31) close to the door front wall 31 and the door side wall 32; relative to the door body 30, the axis center point I moves to the seventh midpoint I7 along the axis line segment PQ, and the seventh midpoint I7 is located on the side of the sixth midpoint I6 close to the door side wall 32 and the door front wall 31.

[0262] In some embodiments of the present application,

[0263] In some embodiments of the present application, When the seventh guide point Q7 is located at a side of the seventh guide point P7 away from the door front wall 31 and the door side wall 32 , the seventh guide point Q7 is located at a side of the sixth guide point Q6 close to the door front wall 31 and the door side wall 32 .

[0264] In some embodiments of the present application, When , the first center axis P is located at the sixth guide point P6, and the second center axis Q is located at the sixth guide point Q6.

[0265] In some embodiments of the present application, when the door body 30 is opened to 90°, the door front wall 31 of the door body 30 is located on the inner side of the first body side wall of the box body 10 .

[0266] In some embodiments of the present application, when the door body 30 is opened to 90°, the door front wall 31 of the door body 30 is located on the inner side of the first body side wall of the box body 10, and the distance between the door front wall 31 and the first body side wall is L3, and L3 is any value between 4mm and 6mm. The above setting enables the door body 30 to be located on the inner side of the first body side wall when it is opened to 90°, and increases the distance between the door front wall 31 and the inner wall of the storage cabinet 100, so as to reduce the restriction of the storage cabinet 100 on the maximum angle of the door body 30 to continue to open. In addition, the above setting minimizes the obstruction of the door body 30 to the access port when it is opened to 90° while ensuring that the maximum angle at which the door body 30 of the refrigerator placed in the storage cabinet 100 can be opened is large enough.

[0267] like Fig.14 and Fig.24 As shown, When the door body 30 rotates to open to G8, the first central axis P is located at the eighth guide point P8 of the guide trajectory line S, and the eighth guide point P8 is located on the side of the seventh guide point P7 close to the door front wall 31 and the door side wall 32; the second central axis Q is located at the eighth guide point Q8 of the guide trajectory line K, and the eighth guide point Q8 is located on the side of the seventh guide point Q7 close to the door front wall 31 and the door side wall 32; relative to the door body 30, the axis center point I moves to the eighth midpoint I8 along the axis line segment PQ, and the eighth midpoint I8 is located on the side of the seventh midpoint I7 close to the door side wall 32 and the door front wall 31. G8 can be set. max Not less than 115°. Adjustable, G max ∈ any value in [115°, 125°].

[0268] In some embodiments of the present application, the door body 30 is opened to a maximum angle G max When the first shaft 41 is located at the end of the guide portion 50 close to the door side wall 32; the first shaft 41 cooperates with the end of the guide portion 50 close to the door side wall 32 to prevent the door body 30 from continuing to open.

[0269] In some embodiments of the present application, the door body 30 is opened to a maximum angle G max When the second shaft 42 is located at one side of the first shaft 41 close to the door side wall 32 and the door rear wall 31, and at the end of the guide portion 60 close to the door side wall 32. The second shaft 42 cooperates with the end of the guide portion 60 close to the door side wall 32 to prevent the door body 30 from continuing to open.

[0270] In this embodiment, 0°<G1<G2<G3<G4<G5<G6<G7=90°<G max =G8; above G1, G2, G3, G4, G5, G6, G7, G8, G max They are recorded as the first angle, the second angle, the third angle, the fourth angle, the fifth angle, the sixth angle, the seventh angle, the eighth angle, and the maximum angle. In addition, it should be noted that the above restrictions on the range of each angle are only used as an implementable setting method and are not limited to each angle.

[0271] It should be noted that the maximum opening angle G of the door body mentioned in the present invention is max The maximum angle that the refrigerator can be opened when placed in the storage cabinet. After the refrigerator is moved out of the storage cabinet, the maximum angle that it can be opened is recorded as the free opening angle G maxk , free opening angle G maxk Not less than the maximum angle G max When the refrigerator is moved out of the storage cabinet, the free opening angle G maxk Greater than the maximum angle G max When the hinge assembly includes at least the trajectory feature of the present invention, the door body 30 is at the maximum angle Gmax Continue to open until the door body 30 moves out of the storage cabinet and reaches the free opening angle G maxk The trajectory characteristics in the process are not limited to the settings in the present invention.

[0272] In combination with the above situation where the door body 30 is opened to a specific angle, in some embodiments of the present application, when the door body 30 is opened to the maximum angle G max During the process, the first shaft 41 always moves relative to the guide part 50, and moves unidirectionally toward the door rear wall 32; the second shaft 42 always moves relative to the guide part 60, and moves unidirectionally toward the door side wall 32; that is, during the entire process of the door body 30 opening, the first shaft 41 and the second shaft 42 both maintain unidirectional movement without reversing, so that the force directions of the first shaft 41 and the second shaft 42 during the door body 30 opening process are always consistent, the door opening and closing feel is good, and the user experience is improved. In addition, the life of the guide part 50 and the guide part 60 is improved. Furthermore, during the entire process of the door body 30 opening, the first shaft 41 and the second shaft 42 maintain unidirectional movement throughout the entire process, so that there is no acceleration of stopping and moving again during the entire opening process of the door body 30, and the movement smoothness of the door body 30 is better.

[0273] The hinge assembly with the track feature of the present application enables the door to be opened to an obtuse angle in the storage cabinet 100 , and during the opening process, the first shaft 41 moves entirely relative to the guide portion 50 , and the second shaft 42 moves entirely relative to the guide portion 60 .

[0274] Combined with the positions of the two limiting shafts (the first shaft 41 and the second shaft 42) relative to the limiting portion (the guide portion 50 and the guide portion 60) when the door body 30 is opened to a specific angle, it can be known that the matching relationship between the first shaft 41 and the guide portion 50 exists in the following situations:

[0275] When the door body 30 opens from the closed state to G4, the first shaft 41 moves along the guide portion 50 toward the door rear wall 33 and the door side wall 32 , and the second shaft 42 moves along the guide portion 60 toward the door side wall 32 and the door rear wall 33 .

[0276] When the door body 30 is opened from G4 to G6 , the first shaft 41 moves along the guide portion 50 toward the door front wall 31 and the door side wall 32 , and the second shaft 42 moves along the guide portion 60 toward the door side wall 32 and the door rear wall 33 .

[0277] Door 30 opens from G6 to G max During the process, the first shaft 41 moves along the guide portion 50 toward the door front wall 31 and the door side wall 32 , and the second shaft 42 moves along the guide portion 60 toward the door front wall 31 and the door side wall 32 .

[0278] In some embodiments of the present application, G4:G8 is any value between 0.35 and 0.65.

[0279] As a configurable method, G4:G8 is any value between 0.45 and 0.55.

[0280] In some embodiments of the present application, G4 is any value between 35° and 45°, and G8 is any value between 70° and 90°.

[0281] As a configurable method, G4 is any value between 38° and 42°, and G8 is any value between 75° and 80°.

[0282] Combination Figure 6-Figure 14 , see Fig.16 The relative movement of the two stages is described below from the perspective of the matching relationship between the first shaft 41 and the guide portion 50 and the second shaft 42 and the guide portion 60:

[0283] (1) The first stage, combining Figure 6-Figure 10 , Figure 16-Figure 20 As shown, the door body 30 rotates from the closed state to open to G4.

[0284] In the first stage, the door body 30 is opened from 0° through G1, G2, G3 to G4. In this process, the first central axis P moves from the starting guide point P0 along the guide track line S to the direction close to the door rear wall 33 and the door side wall 32; the second central axis Q moves from the starting guide point Q0 along the guide track line K to the direction close to the door rear wall 33 and the door side wall 32.

[0285] Specifically, the first center axis P moves from the starting guide point P0 along the guide trajectory line S through the first guide point P1, the second guide point P2, the third guide point P3 to the fourth guide point P4; the second center axis Q moves from the starting guide point Q0 along the guide trajectory line K through the first guide point Q1, the second guide point Q2, the third guide point Q3 to the fourth guide point Q4.

[0286] In the above first stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0287] During the process of the door body 30 opening from 0° to G4, the axis line segment PQ rotates clockwise from P0Q0 and moves to P1Q1, P2Q2, P3Q3, and P4Q4 in the direction close to the door side wall 32 and the door rear wall 33; that is, the movement trend of the axis line segment PQ is P0Q0→P1Q1→P2Q2→P3Q3→P4Q4. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I0→I1→I2→I3→I4; that is, during the opening process of the door body 30, relative to the door body 30, the axis center point I moves toward the direction close to the door side wall 32 and the door rear wall 33.

[0288] Since the guiding portion 50 and the guiding portion 60 are arranged on the door body 30, the axial line segment PQ represents the movement of the hinge plate 40 arranged on the box body 10; it is concluded that: taking the door body 30 as a reference, during the entire process of the door body 30 being opened from a closed state to the fourth angle G4, the box body 10 (i.e., the hinge plate 40) keeps rotating clockwise relative to the door body 30 to open, and moves a certain distance toward the direction close to the door side wall 32 and the door rear wall 33.

[0289] In summary, in the process of the door body 30 opening from the closed state to the fourth angle G4, with the door body 30 (guide groove / guide groove) as a reference, the box body 10 has a translational motion while performing a rotational motion relative to the door body 30; the translational motion is specifically: the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31 relative to the door body 30.

[0290] According to the relativity of movement, taking the box body 10 as a reference, during the process of the door body 30 opening from the closed state to the fourth angle G4, the door body 30 has a translational movement while performing a rotational movement; the translational movement is specifically: the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the door front wall 31 relative to the box body 10.

[0291] In some embodiments of the present application, a straight first guide line and a curved second guide line are set in combination with the guide trajectory line S; the above first stage is divided into a first segment and a second segment.

[0292] Specifically, in the first section, the door body 30 opens from a closed state to a second angle G2, and the first center axis P moves in a straight line from the starting guide point P0 along the guide trajectory line S toward the direction close to the door rear wall 33 and the door side wall 32; the second center axis Q moves in a curve from the starting guide point Q0 along the guide trajectory line K toward the direction close to the door rear wall 33 and the door side wall 32.

[0293] In the second section, the door body 30 opens from the second angle G2 to the fourth angle G4, and the first center axis P moves in a curve from the starting guide point P0 along the guide trajectory line S toward the direction close to the door rear wall 33 and the door side wall 32; the second center axis Q moves in a curve from the starting guide point Q0 along the guide trajectory line K toward the direction close to the door rear wall 33 and the door side wall 32.

[0294] The relative movement between the first segment and the second segment is the same as the process in which the upper door body 30 is opened from the closed state to the fourth angle G4, which will not be described again.

[0295] (2) The second stage, combining Figure 10-12 ,like Figure 20-Figure 22 As shown, the door body 30 rotates and opens from G4 to G6.

[0296] In the second stage, the door body 30 is opened from G4 to G5 to G6. In this process, the first central axis P moves from the fourth guide point P4 along the guide track line S to the direction close to the door front wall 31 and the door side wall 32; the second central axis Q moves from the fourth guide point Q4 along the guide track line K to the direction close to the door rear wall 33 and the door side wall 32.

[0297] Specifically, the first center axis P moves from the fourth guide point P4 along the guide trajectory line S through the fifth guide point P5 to the sixth guide point P6; the second center axis Q moves from the fourth guide point Q4 along the guide trajectory line K through the fifth guide point Q5 to the sixth guide point Q6.

[0298] In the above second stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0299] During the process of the door body 30 opening from G4 to G6, the axis line segment PQ rotates clockwise from P4Q4 and moves to P5Q5 and P6Q6 in sequence in the direction close to the door side wall 32; that is, the movement trend of the axis line segment PQ is P4Q4→P5Q5→P6Q6. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I4→I5→I6.

[0300] In some embodiments of the present application, when the door body 30 is opened to the reversing angle G', the axis center point I moves to the reversing midpoint I'; at this time, the distance between the axis center point I and the door front wall 31 is the largest.

[0301] In some embodiments of the present application, G4<G5<G`<G6. That is, before the second central axis Q moves to the sixth guide point Q6 where the guide track line K is at the maximum distance from the door front wall 31, the guide center I has moved to the position with the maximum distance from the door front wall 31.

[0302] That is, when the door body 30 rotates from the fourth angle G4 to the sixth angle G6, the center point I of the axis first moves toward the door side wall 32 and the door rear wall 33, and then moves toward the door side wall 32 and the door front wall 31. When the door body 30 is opened, the movement trend of the center point I of the axis as the axis line segment PQ moves is I4→I5→I`→I6.

[0303] Since the guide part 50 and the guide part 60 are arranged on the door body 30, the axis line segment PQ represents the movement of the hinge plate 40 arranged on the box body 10; it is concluded that: taking the door body 30 as a reference, when the door body 30 is opened from the fourth angle G4 to the reversing angle G', the box body 10 (i.e., the hinge plate 40) keeps rotating clockwise relative to the door body 30 to open, and moves a certain distance in the direction close to the door side wall 32 and the door rear wall 33. When the door body 30 is opened from the reversing angle G' to the sixth angle G6, the box body 10 (i.e., the hinge plate 40) keeps rotating clockwise relative to the door body 30 to open, and moves a certain distance in the direction close to the door side wall 32 and away from the door rear wall 33.

[0304] In summary, in the process of the door body 30 opening from the fourth angle G4 to the reversing angle G`, with the door body 30 (guide groove / guide groove) as a reference, the box body 10 has a translational motion while performing a rotational motion relative to the door body 30; the translational motion is specifically: the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31 relative to the door body 30.

[0305] In the process of the door body 30 opening from the reversing angle G` to the sixth angle G6, with the door body 30 (guide groove / guide groove) as a reference, the box body 10 has a translational motion while performing a rotational motion relative to the door body 30; the translational motion is specifically: the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 side and a displacement parallel to the door side wall 33 and pointing to the door front wall 31 side relative to the door body 30.

[0306] According to the relativity of movement, taking the box body 10 as a reference, during the process of the door body 30 opening from the fourth angle G4 to the reversing angle G`, the door body 30 has a translational movement while performing a rotational movement; the translational movement is specifically: the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the door front wall 31 relative to the box body 10.

[0307] When the door body 30 opens from the reversing angle G` to the sixth angle G6, the door body 30 has a displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31 relative to the box body 10.

[0308] In some embodiments of the present application, G`=G6. That is, when the door body 30 is opened to the reversing angle G`, the second central axis Q moves to the sixth guide point Q6 where the distance between the guide trajectory line K and the door front wall 31 is the largest. In the process of the door body 30 opening from G4 to G6, the center point I of the axis moves toward the door side wall 32 and the door rear wall 33 relative to the door body 30. For the specific movement process, please refer to the above description of the movement of the center point I of the axis toward the door side wall 32 and the door rear wall 33 relative to the door body 30, which will not be repeated here.

[0309] (3) The third stage, combining Figure 12-14 ,like Figure 22-Figure 24 As shown, the door body 30 is rotated from G6 to G max process.

[0310] Door 30 opens from G6 to G max During the opening process, the first center axis P moves from the sixth guide point P6 along the guide trajectory line S toward the direction close to the door front wall 31 and the door side wall 32; the second center axis Q moves from the sixth guide point Q6 along the guide trajectory line K toward the direction close to the door front wall 31 and the door side wall 32.

[0311] Specifically, the first center axis P moves from the sixth guide point P6 along the guide trajectory line S through the seventh guide point P7 to the eighth guide point P8; the second center axis Q moves from the sixth guide point Q6 along the guide trajectory line K through the seventh guide point Q7 to the eighth guide point Q8.

[0312] In the above third stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0313] Door 30 opens from G6 to G max During the process, the axis line segment PQ rotates clockwise from P6Q6 and moves to P7Q7 and P8Q8 in the direction close to the door side wall 32 and the door front wall 33; that is, the movement trend of the axis line segment PQ is P6Q6→P7Q7→P8Q8. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I6→I7→I8. Among them, the door body 30 is opened from G6 to G max During the process, relative to the door body 30, the center point I of the axis moves toward the direction close to the door side wall 32 and the door front wall 33.

[0314] In some embodiments of the present application, since the guide portion 50 and the guide portion 60 are disposed on the door body 30, the axis line segment PQ represents the movement of the hinge plate 40 disposed on the box body 10; it is concluded that: taking the door body 30 as a reference, the door body 30 is opened from the sixth angle G6 to the maximum angle G maxDuring the process of (the eighth angle G8), the box body 10 (ie, the hinge plate 40) keeps rotating clockwise to open relative to the door body 30, and moves a certain distance toward the direction approaching the door side wall 32 and the door front wall 31.

[0315] In summary, the door body 30 is opened from the sixth angle G6 to the maximum angle G max During the process of (the eighth angle G8), with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while performing a rotational motion relative to the door body 30; the translational motion is specifically: the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 side and a displacement parallel to the door side wall 33 and pointing to the door front wall 31 side relative to the door body 30.

[0316] According to the relativity of movement, taking the box 10 as a reference, the door 30 is opened from the sixth angle G6 to the maximum angle G max During the process of (the eighth angle G8), the door body 30 has a translational movement while making a rotational movement; the translational movement is specifically: the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the side away from the door front wall 31 relative to the box body 10.

[0317] Combining the first, second and third stages, it can be seen that: according to the relativity of motion, with the box 10 as a reference, the door body 30 has a translational motion while rotating; the translational displacement component of the translational motion includes a displacement component parallel to the door rear wall 33 and a displacement component parallel to the door side wall 32. Among them, the displacement component parallel to the door rear wall 33 is recorded as the first direction displacement The displacement component parallel to the door side wall 32 is the second displacement direction In different opening stages of the door body 30, the first direction displacement and the second direction displacement There will be different directions.

[0318] In the above first stage (opening from the closed state to G4) and the second stage, the door body 30 is opened from G4 to G', the first direction displacement Pointing away from the door side wall 32, the second direction displacement Point to the side of the door front wall 31.

[0319] In the above second stage, the door body 30 is opened from G' to G6 and in the third stage (the door body 30 is opened from the sixth angle G6 to the maximum angle G max (eighth angle G8) process), the first direction displacement Pointing away from the door side wall 32, the second direction displacement It points to the side away from the front wall 31 of the door.

[0320] That is, during the process of the door body 30 opening from the closed state to the reversing angle G', the first direction displacement Pointing away from the door side wall 32, the second direction displacement Point to the side of the door front wall 31.

[0321] The door body 30 opens from the reversing angle G' to the maximum angle G max During the process of (eighth angle G8), the first direction displacement Pointing away from the door side wall 32, the second direction displacement It points to the side away from the door front wall 31. The reversing angle G' is less than 90°.

[0322] It should be noted that “pointing toward the door side wall 32 ” refers to the direction from the end of the door body 30 opposite to the door side wall 32 toward the door side wall 32 ;

[0323] “Directed away from the door side wall 32 ” means that it is directed from the door side wall 32 to the direction of the end of the door body 30 opposite to the door side wall 32 ;

[0324] “Towards the side of the door front wall 31” refers to the direction from the door rear wall 33 to the door front wall 31;

[0325] “Directed to the side away from the door front wall 31 ” refers to the direction from the door front wall 31 to the door rear wall 33 .

[0326] In addition, it should be noted that the first direction displacement Second direction displacement All of them are instantaneous relative translation displacements to illustrate the instantaneous translation movement trend relative to the box body 10 and the door body 30.

[0327] See also Figure 28-Figure 32 As shown; in the plane where the top wall of the box body 10 is located, on the side of the box body 10 close to the door body 30, a displacement coordinate system AOB is established. Specifically, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access port is located, and OA is parallel to the plane where the access port is located. In the displacement coordinate system AOB, the direction from the second body side wall to the first body side wall is defined as positive, and the direction from the access port to the door front wall 31 when the door body 30 is closed (from back to front) is defined as positive. It should be noted that during the opening of the door body 30, the displacement coordinate system AOB remains stationary relative to the box body 10, and it does not move with the opening of the door body 30. During the opening of the door body 30, the relative position of the door body coordinate system X1O1Y1 relative to the displacement coordinate system AOB changes continuously with the different opening angles of the door body 30; and when the opening angle of the door body 30 is determined, the instantaneous relative position of the door body coordinate system X1O1Y1 relative to the displacement coordinate system AOB remains relatively stationary.

[0328] In some embodiments of the present application, in the displacement coordinate system AOB, the door body 30 has a first direction displacement parallel to the door rear wall 33. The second direction displacement parallel to the door side wall 32 Displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is During the whole process of the door 30 being opened,

[0329] The door body 30 is opened from the closed state to the maximum angle G max During the whole process of (eighth angle G8), in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement Relative to the box body 10, the door body 30 has a tendency to move in the negative direction along the A axis and in the positive direction toward the B axis while rotating; that is, the door body 30 opens from the closed state to the maximum angle G max During the whole process of (the eighth angle G8), the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of moving inward and forward.

[0330] (1) Figure 28-Figure 31 As shown, during the process of the door body 30 opening from the closed state to 90°, during the process of the door body 30 rotating counterclockwise relative to the box body 10, the door side wall 32, the door rear wall 33 and the door front wall 31 also rotate counterclockwise during the opening process at this stage. In the plane where the top wall of the box body 10 is located, along the direction from the second side edge N to the first side edge W (the door rear wall 33 to the door front wall 31), the door side wall 32 extends outward and forward; along the direction from the door side wall 32 to the end of the door body 30 opposite to the door side wall 32, the door rear wall 33 extends inward and forward.

[0331] In the above opening process (opening from the closed state to 90°), the door side wall 32 starts to rotate counterclockwise from the state parallel to the reference plane M0, and the angle between the door side wall 32 and the plane where the access port is located gradually decreases, and the angle between the door side wall 32 and the reference plane M0 gradually increases; that is, in the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends to the side away from the second body side wall and the access port. At the same time, as the opening angle of the door body 30 increases, the angle between the door rear wall 33 and the plane where the access port is located gradually increases, and the angle between the door rear wall 33 and the reference plane M0 gradually decreases; that is, in the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the door side wall 32 to the end of the door body 30 opposite to the door side wall 32, the door rear wall 33 extends in a direction away from the first body side wall and the access port (close to the second body side wall and away from the access port).

[0332] (1.1) In combination with the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from the closed state to the reversing angle G' (G' < 90°), it can be seen that: during the process of the door body 30 opening from the closed state to the reversing angle G', with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32. The second direction displacement is parallel to the door side wall 32 and points to the side of the door front wall 31 The first direction displacement Pointing to the inner front side of the box 10 (inward and forward side), the second direction displacement It points to the outer front side (outward and forward side) of the housing 10 .

[0333] like Figure 28-Figure 29 As shown, in the displacement coordinate system AOB, when the door body 30 is opened from the closed state to the reversing angle G' (G' < 90°), the first direction displacement of the door body 30 Located in the second quadrant (A<0, B>0), displacement in the second direction Located in the first quadrant (A>0, B>0). Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, when the door body 30 is opened from the closed state to the reversing angle G', in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement It can be concluded from this that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction along the A axis and in the positive direction toward the B axis while rotating; that is, in the process of the door body 30 opening from the closed state to G` (G`<90°), the door body 30 has a tendency to move inward and forward while rotating and opening relative to the box body 10.

[0334] In the above, during the process of the door body 30 opening from the closed state to G` (G`<90°), the door body 30 keeps moving inward to compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, so as to limit the distance of the first side edge W beyond the reference plane M0, and effectively avoid the door body 30 being unable to continue opening due to the interference between the first side edge W and the storage cabinet 100 when the door body 30 is opened. At the same time, the door body 30 keeps moving forward to compensate for the backward displacement of the second side edge N caused by the simple rotation of the door body 30, so as to limit the distance of the second side edge W approaching the plane where the access port is located, thereby reducing the amount of extrusion on the door seal 5 when the door body 30 is opened.

[0335] (1.2) In combination with the above description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from the reversing angle G' to G7 = 90° (G' < G7 = 90°), it can be seen that: during the process of the door body 30 opening from the reversing angle G' to G7 = 90°, with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32. The second direction parallel to the door side wall 32 and pointing away from the door front wall 31 is displaced The first direction displacement Pointing to the inner front side of the box 10 (inward and forward side), the second direction displacement It points to the inner rear side of the housing 10 (the inner rear side).

[0336] like Fig.28 and Fig.30 As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the reversing angle G' to G7 = 90°, the first direction displacement of the door body 30 Located in the second quadrant (A<0, B>0), displacement in the second direction Located in the third quadrant (A<0, B<0). Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, during the process of the door body 30 opening from the reversing angle G' to G7 = 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement It can be concluded from this that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction along the A axis and in the positive direction toward the B axis while rotating; that is, in the process of the door body 30 opening from the reversing angle G` to G7=90°, the door body 30 rotates and opens relative to the box body 10 and has a tendency to move inward and forward while translating.

[0337] (2) Fig. 9 As shown, when the door body 30 is opened to 90°, the door side wall 33 is parallel to the plane where the access port is located, and is perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0, and is perpendicular to the plane where the access port is located. That is, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends from inside to outside, and the door rear wall 33 extends from back to front.

[0338] Combined with the description of the displacement direction of the door body 30 relative to the box body 10 during the opening process of the door body 30, it can be concluded that when the door body 30 is opened to 90°, with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing away from the door side wall 32. The second direction parallel to the door side wall 32 and pointing away from the door front wall 31 is displaced The first direction displacement Pointing to the front side of the box 10, the second direction displacement Pointing to the inside of the box 10.

[0339] like Fig.31 As shown, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the first direction displacement of the door body 30 is Along the B axis and pointing to the positive direction of the B axis, the second direction displacement Along the A axis and pointing to the negative direction of the A axis. Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is The displacement on the B axis is 0; displacement in the second direction The displacement on the A axis is The displacement on the B axis is in, That is, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement 0 and the second translation displacement It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction along the A axis and move in the positive direction toward the B axis while rotating; that is, when the door body 30 is opened at 90°, the door body 30 has a tendency to move inward and forward while rotating and opening relative to the box body 10.

[0340] In summary, during the process of the door body 30 opening from the closed state to 90°, the door body 30 maintains a movement tendency of moving inward and forward while rotating and opening.

[0341] In some embodiments of the present application, the door body 30 maintains a tendency to move inwardly when it is opened from a closed state to 90°, so that when the door body 30 is opened to 90°, the door front wall 31 is parallel to the first body side wall, or the door front wall 31 is located on the side of the first body side wall close to the second body side wall. When the door body 30 is opened to 90°, the distance between the door body 30 (door front wall 31) and the storage cabinet 100 (reference plane M0) is increased, and the space that allows the door body 30 to continue to open is increased, thereby increasing the maximum opening angle G of the door body 30 placed in the storage cabinet 100 max (eighth angle G8), reducing the restriction of the storage cabinet 100 on the opening angle of the door body 30 placed therein.

[0342] (3) Figure 9-12 As shown, when the door body 30 is rotated from 90° to G8 (G8>90°), the door body 30 rotates counterclockwise relative to the box body 10, and the door side wall 32 also rotates counterclockwise during the opening process at this stage. In the plane where the top wall of the box body 10 is located, the door side wall 32 extends outward and backward along the direction from the second side edge N to the first side edge W; along the direction from the door side wall 32 to the opposite end of the door body 30 and the door rear wall 33 extends outward and forward.

[0343] In the above opening process, the door side wall 32 starts to rotate counterclockwise from a state perpendicular to the reference plane M0 (when the door body 30 is opened 90°), and the angle between the door side wall 32 and the plane where the access port is located gradually increases, and the angle between the door side wall 32 and the reference plane M0 gradually decreases; that is, in the process of the door body 30 rotating from 90° to open to G8, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends away from the second body side wall and close to the access port. At the same time, the angle between the door rear wall 33 and the plane where the access port is located gradually decreases, and the angle between the door rear wall 33 and the reference plane M0 gradually increases; that is, in the process of the door body 30 rotating from 90° to open to G8, relative to the box body 10, along the direction from the door side wall 32 to the end of the door body 30 opposite to the door side wall 32, the door rear wall 33 extends away from the second body side wall and the access port.

[0344] In the process of the door body 30 rotating from 90° to G8 (G8>90°), with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 The second direction parallel to the door side wall 32 and pointing away from the door front wall 31 is displaced The first direction displacement Pointing to the outer front side of the box 10 (outward and forward side), the second direction displacement It points to the inner front side of the housing 10 (the side facing inward and forward).

[0345] like Fig.37 and Fig.42 As shown, in the displacement coordinate system AOB, when the door body 30 is opened from 90° to G8 (G8>90°), the first direction displacement of the door body 30 Located in the first quadrant (A>0, B>0), displacement in the second direction Located in the second quadrant (A<0, B>0). Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, when the door body 30 moves from 90° to G8, in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement It can be concluded from this that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction along the A axis and in the positive direction toward the B axis while rotating; that is, in the process of the door body 30 opening from 90° to G8, the door body 30 has a tendency to move inward and forward while rotating and opening relative to the box body 10.

[0346] In summary, during the entire process of the door body 30 opening from the closed state to G8 (G8>90°), relative to the box body 10, the door body 30 has a movement tendency of moving inward and forward while simply rotating.

[0347] Although the current double-axis and double-slot matching structure can prevent the door body 30 from colliding with the storage cabinet 100 when opening, the door body 30 cannot be fully opened in the setting scenario where the gap between the refrigerator (door body 30) and the storage cabinet is no more than 3 mm, causing inconvenience for users to take and put items.

[0348] See attached Figure 33-Figure 34 In the series of applications represented by CN115682517A filed by the applicant on December 23, 2021, the guide trajectory of the guide part of the hinge assembly first extends from the end away from the door side wall to the direction away from the door front wall and close to the door side wall, and then extends to the direction close to the door front wall and the door side wall; the guide trajectory of the guide part first extends from the end away from the door side wall to the direction away from the door front wall and close to the door side wall, and then extends to the direction close to the door front wall and the door side wall. In the projection of the plane where the top wall of the box body is located, the midpoint of the line segment where the central axis of the first axis and the central axis of the second axis are located is recorded as the axis center point T; during the opening process of the door body, the axis center point T moves relative to the door body, and the axis center point trajectory formed by the movement of the axis center point T relative to the door body increases with the increase of the opening angle of the door body. The distance between the axis center point T and the door front wall first increases and then decreases. Among them, the point with the maximum distance between the axis center point T and the door front wall is T', and the angle of the door body opened relative to the box body is recorded as G'. Restricted by CN115682517A, the guide trajectory is a standard arc, and the guide trajectory is limited by the structure formed by two standard arcs. When the midpoint T of the axis moves relative to the door body to the point T' where the distance between it and the front wall of the door is the largest, the opening angle of the door body relative to the box body is an obtuse angle; that is, G'>90°.

[0349] In the solution defined in CN115682517A, in the displacement coordinate system AOB, the door body has a first direction displacement parallel to the door rear wall 33 The second direction displacement parallel to the door side wall 32 Displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is

[0350] Among them, see Fig.34 , when the door opens from 0° to 90°, Fig.34 (a) and 34(b),

[0351] When the door is opened to 90°, Fig.34 (c)

[0352] When the door opens from 90° to G`, Fig.34 (d)

[0353] The door opens from G` to the maximum angle G max (eighth angle G8) process, as Fig.34 (e)

[0354] In summary, in the series of applications represented by CN115682517A, when the door body is opened from the closed state to 90°, the door body has a tendency to move inward and forward while rotating; when the door body is opened from 90° to G', the door body has a tendency to move outward and forward while rotating; when the door body is opened from G' to the maximum angle G max During the process of (eighth angle G8), the door body has a tendency to move inward and forward while rotating. That is, during the whole process of the door body opening, there is at least one stage in which the door body keeps moving outward, which causes the angle of the door body of the refrigerator rotating in the storage cabinet to be reduced from 90°, thereby reducing the maximum angle that the door body of the refrigerator placed in the storage cabinet can open.

[0355] Compared with the structure of the hinge assembly currently on the market (compared with the solutions in the series of applications represented by CN115682517A), the refrigerator with the hinge assembly having the trajectory characteristics of the present application has a reversing angle G` that is an acute angle or a right angle (CN115682517A is an obtuse angle), so that during the entire opening process (the maximum opening angle is an obtuse angle), the door body 30 has an instantaneous translational displacement of inward and forward translational motion relative to the cabinet body 10 while having a simple rotational motion, so that the moving door body 30 maintains an inward and forward translational motion while rotating relative to its previous state. During the opening process of the above door body 30, the door body 30 moves inward. On the one hand, it compensates for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, so as to limit the distance that the first side edge W exceeds the reference plane M0, thereby effectively avoiding the interference between the door body 30 and the storage cabinet 100 when the door body 30 is opened; on the other hand, the distance between the door body 30 and the storage cabinet 100 is increased, so as to reduce the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30 placed in the storage cabinet 100; in addition, the door body 30 moves forward at the same time, further reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30 placed in the storage cabinet 100; the above door body 30 has an inward and forward translational motion while simply rotating to open, and the inward translation and forward translational motion trends work together to jointly reduce the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30 placed in the storage cabinet 100. In addition, the door body 30 has the above-mentioned inward and forward translational movement tendency throughout the entire process of opening, so that the door body 30 can be moved out of the space defined by the storage cabinet 100 as much as possible, so that the maximum opening angle of the door body 30 placed in the storage cabinet 100 can reach an obtuse angle (settable, 115° and above or 120° and above), thereby achieving the purpose of placing the refrigerator in the storage cabinet 100 and being able to open it completely, making it convenient for users to take and put items.

[0356] It should be noted that the above description only uses some angles in the range of 0 to 90 degrees, 90 degrees, 90 degrees to G max =Some angles within the range of G8 are used as representatives to illustrate the overall movement trend of the door body 30, but they can represent the movement trend within the corresponding range, and can illustrate that the hinge assembly with the above trajectory characteristics of the present invention can enable the door body 30 to have a movement trend of moving inward and forward throughout the entire process of rotating and opening.

[0357] The hinge assembly with the trajectory feature of the present invention enables the door body 30 to move inward and forward while rotating during the opening process. At the same time, its trajectory (guide trajectory line S and guide trajectory line K) is smooth and has no sharp points, which effectively ensures the smoothness and stability of the opening of the door body 30.

[0358] Combined with the above description of the process of opening the door body 30, next, the door body 30 is in the previous state (such as ) rotates around the midpoint of the axis line segment PQ relative to the door body 30 to the adjacent next state (angle ) is in the position of the door body 30 in the present invention in the aforementioned adjacent state. , so as to illustrate the tendency of the door body 30 to perform a translational movement relative to its previous state while rotating during the opening process under the setting of the hinge assembly with the trajectory feature of the present invention.

[0359] Combination Figure 33-Figure 39 As shown, it is assumed that the door body 30 rotates around the axis center point I of the previous state to the position of the adjacent subsequent state (the door body 30 is represented by a dotted line). During this movement, the rotation center of the door body 30 is fixed relative to the door body 30, and the rotation center of the door body 30 is the position of the axis center point I of the previous state on the door body 30; then under this movement trend, when the door body 30 is opened to the adjacent subsequent state, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; and the side sealing edge F is located at F` relative to the box body 10.

[0360] like Fig.35 In the figure, the position of the door body 30 indicated by the dotted line is the position reached when the door body 30 is simply rotated by the first angle G1 around the midpoint I (I0) of the axial line segment PQ of the door body 30 when the door body 30 is closed; the position of the door body 30 indicated by the solid line is the position reached when the door body 30 is rotated to open to the first angle G1 under the restriction of the hinge assembly of the present invention; Fig.36 In the figure, the position of the door body 30 indicated by the dotted line is the position reached when the door body 30 is rotated to open to the first angle G1 under the restriction of the hinge assembly of the present invention, and then simply rotates to the second angle G2 with the door body 30 at the first angle G1 relative to the axis center point I of the door body 30 (the axis center point I (I1) in the previous state) as the center; the position of the door body 30 indicated by the solid line is the position reached when the door body 30 is rotated to open to the second angle G2 under the restriction of the hinge assembly of the present invention. Similarly, Figure 35-Figure 42 The following is a schematic diagram showing the position comparison of the two different opening methods mentioned above at different opening angles. Figures 35 to 42 In the figure, the position of the door body 30 indicated by the dotted line is the position where the door body 30 is rotated and opened to the i-th angle under the restriction of the hinge assembly of the present invention. Then, the door body 30 is at the i-th angle The relative axis center point I of the door body 30 (the axis center point I of the previous state) i )) is the center of the simple rotation to the i+1th angle The position of the door body 30 indicated by the solid line is the position of the door body 30 rotated open to the i+1th angle under the restriction of the hinge assembly of the present invention. The position reached when . Where i is any value from 0 to 7, and i is an integer.

[0361] It should be noted that the comparison between the position of the door body 30 in the current state of the present invention and the position when the door body 30 is assumed to be simply rotated from the previous state of the present invention around the axis center point I to the opening angle of the door body 30 of the present invention is representative, which can represent the translation movement trend of the door body 30 relative to the previous state during the opening process of the door body 30 of the present invention; only some selected angles ( Set to 0°, G1, ... G7, the corresponding G1, ... G8) are set for comparison and explanation to present the translation movement trend of the door body 30 when it rotates to open.

[0362] By comparing the arrangement of the present invention (the door body 30 rotates around a point that is dynamically changing relative to the door body 30 throughout the entire process) with the simple rotation of the door body 30 around the center point I of the axis in the previous state, it can be seen that:

[0363] The door body 30 is opened from the closed state to G max During the process, the first side edge position W is located at the side of W' close to the second body side wall and away from the access opening; the second side edge position N is located at the side of N' close to the second body side wall and away from the access opening; the side sealing edge position F is located at the side of F' close to the second body side wall and away from the access opening. That is, the door body 30 is opened from the closed state to G max During the opening and closing process, the door body 30 rotates and opens while having a tendency to move inward and forward.

[0364] like Fig.43 As shown, in the projection of the plane where the top wall of the box body 10 is located, the door body 30 is rotated and opened to the limit of the hinge assembly having the trajectory characteristics of the present application. When the axis center point I is located relative to the door body 30, the instantaneous axis center point I is recorded as i , with the instantaneous axis center I i is the center of the circle, line segment I i W is the radius, and I i W rotates along the opening direction of the door body 30 Then the position of point W' where the first side edge is located is obtained.

[0365] Door body 30 Continue Open The rear opening angle is The first side edge moves to W; comparing the positions of W` and W above, it can be seen that the door body 30 is opened from the closed state to During the process, the position W of the first side edge is located at the side W' close to the side wall of the second body and away from the access opening. and All belong to 0°~G max Any value, and

[0366] Among them, the opening angle Opening angle That is, the door body 30 is Continue to open to reach location; Infinitely approaches 0.

[0367] The above position comparison method is also applicable to the second side edge, the side sealing edge and other points on the door body 30; and by comparison, it can be obtained that the door body 30 is opened from the closed state to G max During the opening and closing process, the door body 30 rotates and opens while having a tendency to move inward and forward.

[0368] It should be noted that the above can be used as a method for determining the translational movement trend of the door body 30 when it is rotated to open, so as to explore the translational movement process of the door body 30 during the opening process. Any value between 0° and 10° can be used for comparison to intuitively display the translation trend. The smaller it is, the more accurate the translation trend between the two adjacent states is. Infinitely approaches 0.

[0369] In some embodiments of the present application, the reversing angle G' is greater than 45° and not greater than 90°. As a configurable method, the reversing angle G' is any value between 75° and 80°. The setting of the hinge assembly with the above trajectory characteristics enables the door body 30 to move in the second direction during the process of opening from the closed state to 90°. The transition from the first quadrant of the displacement coordinate system AOB to the third quadrant thereof further increases the speed at which the door body 30 moves inward from the reversing angle G` to 90°, and can accelerate the inward movement distance of the door body 30 more and faster, thereby increasing the distance between the door front wall 31 and the inner wall of the storage cabinet 100 when the door body 30 is opened to 90°, and reducing the restriction of the storage cabinet 100 on the maximum angle of the door body 30 that continues to open from 90°.

[0370] In addition, with the arrangement of the hinge assembly having the above trajectory characteristics, the door body 30 is displaced in the second direction during the process of opening from the closed state to the reversing angle G'. Located in the first quadrant of the displacement coordinate system AOB, displacement in the first direction Located in the second quadrant of the displacement coordinate system AOB, it effectively ensures the displacement of the door body 30 along the positive direction of the B axis when it is opened, so that the door body 30 can move forward quickly when it is opened, effectively reducing the amount of squeezing on the door seal 5.

[0371] In the above, during the opening process of the door body 30, the distance between the center point I of the axis and the door front wall 31 is the largest when the door body 30 is opened to the reversing angle G'. The above description is made by taking the reversing angle G' < 90°, that is, the reversing angle G' is an acute angle as an example.

[0372] In some embodiments of the present application, the reversing angle G'=G7=90°. That is, when the door body 30 is opened to 90°, the distance between the axis center point I and the door front wall 31 reaches the maximum value. That is, the axis center point I moves to the reversing midpoint I'.

[0373] Under the setting feature of the reversing angle G'=G7=90°, during the process of the door body 30 opening from the closed state to 90°, see Fig.31 As shown, the first direction displacement Pointing to the inner front side of the box 10 (inward and forward side), the second direction displacement Pointing to the outer front side of the box body 10 (outward and forward); the specific process is the same as the process of opening from the closed state to G' (G'<90°). That is, the first direction displacement The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, when the door body 30 is opened from the closed state to 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement That is, when the door body 30 is opened from a closed state to 90 degrees, the door body 30 rotates and opens relative to the box body 10 and has a movement tendency of moving inward and forward.

[0374] Under the setting characteristic of the reversing angle G'=G7=90°, the process of the door body 30 opening from 90° to G8 is the same as the corresponding stage mentioned above. Fig.33 As shown, the first direction displacement The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, during the process of the door body 30 opening from 90° to G8, in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement That is, when the door body 30 is opened from 90° to G8, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of moving inward and forward.

[0375] In summary, under the setting of the reversing angle G'=90°, compared with the setting of G'<90°, the door body 30 does not have a process of the door body 30 opening from G' to G7=90° (G'<G7=90°) (such as Fig.32 shown).

[0376] In some embodiments of the present application, G`=G6=G7=90°.

[0377] Combined with the movement of the first shaft 41 relative to the guide part 50 and the second shaft 42 relative to the guide part 60 in the first stage, the second stage and the third stage, during the opening process of the door body 30, relative to the door body 30, as the axis line segment PQ moves, the axis center point I moves relative to the door body 30. Among them, the movement trajectory of the axis center point I relative to the door body 30 is recorded as the axis center point trajectory line. Relative to the door body 30, along the direction from the end of the door body 30 away from the door side wall 32 to the door side wall 32, the distance between the axis center point I and the door front wall 31 first increases and then decreases. That is, the axis center point trajectory line extends from its end away from the door side wall 32 to the direction away from the door front wall 31 and close to the door side wall 32, and then extends to the side close to the door front wall 31 and the door side wall 32.

[0378] Among them, when the axis center point I moves to the reversing midpoint I', the distance between the axis center point trajectory line and the door front wall 31 is the largest; at this time, the angle at which the door body 30 is opened is the reversing angle G'. That is, when the door body 30 is opened to the reversing angle G', the axis center point I moves to the reversing midpoint I' where the distance from the door front wall 31 is the largest. As the door body 30 opens, the movement trend of the axis center point I changes at the reversing midpoint I' (from the direction close to the door side wall and away from the door front wall to the direction close to the door side wall and the door front wall), and the distance between the axis center point I and the door front wall 31 changes at the reversing midpoint I' (the distance between the axis center point I and the door front wall 31 changes from an increasing trend to a decreasing trend).

[0379] In some embodiments of the present application, the commutation angle G' is a non-obtuse angle, that is, the commutation angle G' is an acute angle or a right angle.

[0380] When the commutation angle G` is set to an acute angle, the movement trend of the axis center point I is as follows:

[0381] When the door body 30 is opened from the closed state to the reversing angle G', the center point I of the axis moves relative to the door body 30 toward the side close to the door side wall 32 and away from the door front wall 31 to the reversing midpoint I';

[0382] During the process of the door body 30 opening from the reversing angle G' to the eighth angle G8, the center point I of the axis moves relative to the door body 30 from the reversing center point I' to the side close to the door side wall 32 and the door front wall 31.

[0383] In some embodiments of the present application, when the reversing angle G' is set to a right angle, the movement trend of the center point I of the axis is as follows:

[0384] When the door body 30 is opened from the closed state to 90°, the center point I of the axis moves relative to the door body 30 toward the side close to the door side wall 32 and away from the door front wall 31 to the reversing center point I';

[0385] When the door body 30 is opened from 90° to the eighth angle G8, the center point I of the axis moves relative to the door body 30 from the reversing center point I' to the side close to the door side wall 32 and the door front wall 31.

[0386] In some embodiments of the present application, the door body 30 opens at an angle of When the first shaft 41 moves relative to the guide portion 50 toward the direction close to the plane where the first body side wall and the access opening are located, the second shaft 42 moves relative to the guide portion 50 toward the direction close to the plane where the first body side wall and the access opening are located. Belongs to 0°~G max Any of these values.

[0387] That is, when the door body 30 is opened from the closed state to the maximum angle G max During the process of rotating the door 30 to the second side wall of the first body and the access opening (eighth angle G8), the first shaft 41 and the second shaft 42 move synchronously relative to the guide portion 50 toward the first body side wall and the access opening, so that the door 30 moves relative to the box body 10 toward the side close to the second body side wall and away from the access opening during the rotation opening process, thereby reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door 30 placed in the storage cabinet 100.

[0388] Correspondingly, the door body 30 opens at an angle of When the first central axis P moves relative to the guide portion 50 along the guide trajectory line S toward the direction close to the plane where the first body side wall and the access opening are located, the second central axis Q moves relative to the guide portion 60 along the guide trajectory line K toward the direction close to the plane where the first body side wall and the access opening are located. Belongs to 0°~G max Any of these values.

[0389] That is, when the door body 30 is opened from the closed state to the maximum angle G maxDuring the process of rotating the door 30 to the eighth angle G8, the first central axis P moves synchronously with respect to the guide track line S and the second central axis Q moves synchronously with respect to the guide track line K toward the first body side wall and the access opening, so that the door 30 moves toward the side close to the second body side wall and away from the access opening relative to the box body 10 during the process of rotating and opening, thereby reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door 30 placed in the storage cabinet 100.

[0390] In some embodiments of the present application, the door body 30 opens at an angle of When the first central axis P is located at the instantaneous guiding point of the guiding trajectory line S The second central axis Q is located at the instantaneous guide point of the guide trajectory line K

[0391] Guidance trajectory S at instantaneous guidance point The tangent at is recorded as the first instantaneous tangent, which is determined by the instantaneous guide point Extending in a direction close to the plane where the first body side wall and the access opening are located;

[0392] Guidance trajectory K at instantaneous guidance point The tangent at is recorded as the second instantaneous tangent. The second instantaneous tangent is guided by the instantaneous point Extending in a direction close to the plane where the first body side wall and the access opening are located; wherein, Belongs to 0°~G max The above configuration enables the door body 30 to move toward the side close to the second body side wall and away from the access opening relative to the box body 10 during the rotation opening process, thereby reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30 placed in the storage cabinet 100.

[0393] In some embodiments of the present application, the door body 30 opens at an angle of When the first central axis P is displaced relative to the guide track line S, the first instantaneous displacement is recorded as The instantaneous displacement of the second central axis Q relative to the guide trajectory line K is recorded as the second instantaneous displacement

[0394] Among them, the first instantaneous displacement Pointing to the plane where the first body side wall and the access port are located, the second instantaneous displacement Pointing to the plane where the first body side wall and the access opening are located; wherein, The above configuration enables the door body 30 to move toward the side close to the second body side wall and away from the access opening relative to the box body 10 during the rotation opening process, thereby reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30 placed in the storage cabinet 100.

[0395] The guide portion 50 has a first guide boundary line, and the guide portion has a first guide boundary line.

[0396] The first guide boundary line is an equidistant line parallel to the guide trajectory line S, and the first guide boundary line is an equidistant line parallel to the guide trajectory line K. That is, the first guide boundary line and the guide trajectory line S are parallel to each other, and the first guide boundary line and the guide trajectory line K are parallel to each other.

[0397] In some embodiments of the present application, the radius of the first axis 41 is recorded as the first radius R1, and the radius of the second axis 42 is recorded as the second radius R2. The distance between the first guide boundary line and the guide trajectory line S is the first radius R1; the distance between the first guide boundary line and the guide trajectory line K is the second radius R2.

[0398] In some embodiments of the present application, the first guide boundary line is located on a side of the guide trajectory line S close to or away from the door front wall 31 ; and the second guide boundary line is located on a side of the guide trajectory line K close to or away from the door front wall 31 .

[0399] In some embodiments of the present application, the first guide boundary line is located on a side of the guide trajectory line S close to the door front wall 31 , and at the same time, the second guide boundary line is located on a side of the guide trajectory line K close to the door front wall 31 .

[0400] In some embodiments of the present application, the first guide boundary line is located on a side of the guide trajectory line S away from the door front wall 31 , and at the same time, the second guide boundary line is located on a side of the guide trajectory line K away from the door front wall 31 .

[0401] As a first instantaneous displacement and the second instantaneous displacement The definition is as follows: The door body 30 opens at an angle of When the first central axis P moves relative to the guide trajectory line S to the instantaneous guide point Through the instantaneous guide point A straight line perpendicular to the first guide boundary line intersects the first guide boundary line at the foot of the first guide perpendicular Through the instantaneous guide point And with the instantaneous guide point and the first leading foot Straight line The vertical straight line is recorded as the first guiding direction line; among which, the first instantaneous displacement Along the first guiding direction line, and pointing to the plane where the first body side wall and the access opening are located.

[0402] Similarly, the door body 30 opens at an angle of When the second central axis Q moves relative to the guide trajectory line K to the instantaneous guide point Through the instantaneous guide point A straight line perpendicular to the first guide boundary line intersects the first guide boundary line at the foot of the first guide perpendicular Through the instantaneous guide point And with the instantaneous guide point and the first guide foot Straight line The vertical straight line is recorded as the first guiding direction line; among them, the second instantaneous displacement Along the first guiding direction line, and pointing to the plane where the first body side wall and the access opening are located.

[0403] That is, the first instantaneous displacement The second instantaneous displacement Determined by determining the first guide direction line and the first guidance direction line.

[0404] It should be noted that when the guide portion 50 is configured as a guide groove and the guide portion 60 is configured as a guide groove structure, in the projection of the plane where the top wall of the box body 10 is located, the groove wall of the guide groove is the first guide boundary line, and the groove wall of the guide groove is the first guide boundary line. Corresponding to the relative positional relationship between the first guide boundary line and the guide trajectory line and the relative positional relationship between the first guide boundary line and the guide trajectory line, the groove wall of the guide groove and the groove wall of the guide groove are determined; in determining the first instantaneous displacement The second instantaneous displacement The specific method is as follows:

[0405] The door body 30 opens at an angle of When the first instantaneous displacement is determined, a straight line passing through the first central axis P and perpendicular to the groove wall of the guide groove is first determined, and then a first guide direction line perpendicular to and passing through the first central axis P is determined by the straight line passing through the first central axis P and perpendicular to the groove wall of the guide groove, so that the first instantaneous displacement is determined by the first guide direction line.

[0406] Similarly, the door body 30 opens at an angle of When the second instantaneous displacement is determined, a straight line passing through the second central axis Q and perpendicular to the groove wall of the guide groove is first determined, and then a straight line passing through the second central axis Q and perpendicular to the groove wall of the guide groove is used to determine the first guide direction line perpendicular to the second central axis Q and passing through the second central axis Q, thereby determining the second instantaneous displacement by the first guide direction line.

[0407] It can be set that, when determining above, the groove wall of the guide groove close to the door front wall 31 can be used as the first guide boundary line, and the groove wall of the guide groove close to the door front wall 31 can be used as the first guide boundary line for determination.

[0408] As another option, the first instantaneous displacement and the second instantaneous displacement The definition is as follows: The door body 30 opens at an angle of When the first central axis P moves relative to the guide trajectory line S to the instantaneous guide point At this time, the contact point between the first axis 41 and the first guide boundary line is recorded as the instantaneous guide contact point Through the instantaneous guide point And with the instantaneous guide point With instantaneous guide contact point Straight line The vertical straight line is recorded as the first guiding displacement line; among them, the first instantaneous displacement Along the first guide displacement line, and pointing to the plane where the first body side wall and the access opening are located.

[0409] Similarly, the door body 30 opens at an angle of When the second central axis Q moves relative to the guide trajectory line K to the instantaneous guide point At this time, the contact point between the second axis 41 and the first guide boundary line is recorded as the instantaneous guide contact point Through the instantaneous guide point And with the instantaneous guide point With instantaneous guide contact point Straight line The vertical straight line is recorded as the first guide displacement line; the second instantaneous displacement Along the first guide displacement line, and pointing to the plane where the first body side wall and the access opening are located.

[0410] That is, the first instantaneous displacement The second instantaneous displacement Determined by determining the first guide displacement line and the first guide displacement line.

[0411] It should be noted that when the guide portion 50 is configured as a guide groove and the guide portion 60 is configured as a guide groove structure, in the projection of the plane where the top wall of the box body 10 is located, the groove wall of the guide groove is the first guide boundary line, and the groove wall of the guide groove is the first guide boundary line. Corresponding to the relative positional relationship between the first guide boundary line and the guide trajectory line and the relative positional relationship between the first guide boundary line and the guide trajectory line, the groove wall of the guide groove and the groove wall of the guide groove are determined; in determining the first instantaneous displacement The second instantaneous displacement The specific method is as follows:

[0412] The door body 30 opens at an angle of When the instantaneous guide point at the position of the first central axis P is determined, and the instantaneous guiding contact point between the first shaft 41 and the groove wall of the guiding groove Then through the instantaneous guide point With instantaneous guide contact point Straight line To determine the first guide displacement line perpendicular to and passing through the first central axis P, thereby determining the first instantaneous displacement by the first guide displacement line

[0413] Similarly, the door body 30 opens at an angle of When the second central axis Q is located, first determine the instantaneous guide point and the instantaneous guide contact point between the first shaft 41 and the groove wall of the guide groove Then through the instantaneous guide point With instantaneous guide contact point Straight line To determine the first guide displacement line perpendicular to and passing through the second central axis Q, thereby determining the second instantaneous displacement line

[0414] Configurable, the above determines the first instantaneous displacement The second instantaneous displacement When the guide groove is close to the door front wall 31, the groove wall of the guide groove close to the door front wall 31 can be determined as the first guide boundary line.

[0415] In some embodiments of the present application, the door body 30 opens at an angle of When the center point I of the axis moves relative to the door body 30 toward the direction close to the plane where the first body side wall and the access opening are located. Belongs to 0°~G8(G max ) any value.

[0416] That is, when the door body 30 is opened from the closed state to the eighth angle G8 (G8 = the maximum angle G max ), the center point I of the axis moves relative to the door body 30 toward the plane where the first body side wall and the access opening are located. Thus, the door body 30 moves relative to the box body 10 toward the side close to the second body side wall and away from the access opening during the rotation opening process, thereby reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30 placed in the storage cabinet 100.

[0417] In some embodiments of the present application, the door opening angle is When the instantaneous displacement of the center point of the axis relative to the trajectory line of the center point of the axis is recorded as the instantaneous midpoint displacement Among them, the instantaneous midpoint displacement Pointing to the plane where the first body side wall and the access opening are located; wherein, Belongs to 0°~G max The above configuration enables the door body 30 to move toward the side close to the second body side wall and away from the access opening relative to the box body 10 during the rotation opening process, thereby reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30 placed in the storage cabinet 100.

[0418] Among them, the opening angle of the door body 30 is When the axis center point I is located at the instantaneous midpoint of the axis center point trajectory line The axis center point trajectory line is at the instantaneous midpoint The tangent line at the instantaneous midpoint is recorded as the instantaneous midpoint tangent line. The instantaneous midpoint displacement is Along the instantaneous midpoint tangent line, and pointing to the plane where the first body side wall and the access opening are located.

[0419] In some embodiments of the present application, in the direction perpendicular to the door side wall 32, the distance between the starting midpoint I0 and the reversing midpoint I` is recorded as |I0I`|`, and the distance between the reversing midpoint I` and the eighth midpoint I8 is recorded as |I`I8|`; wherein, |I0I`|`:|I`I8|` belongs to any value from 1 to 3.

[0420] In some embodiments of the present application, in the door body coordinate system X1O1Y1, the slope of the straight line between the starting midpoint I0 and the reversing midpoint I' is recorded as F' I1 , the slope of the straight line between the commutation midpoint I' and the eighth midpoint I8 is recorded as F' I2 ; Among them, F` I2 >0>F` I1 , 1>F` I2 >|F` I1 |>0.

[0421] In some embodiments of the present application, 0.8>F` I2 >|F` I1 |>0.

[0422] In some embodiments of the present application, in the door body coordinate system X1O1Y1, the function of the axis center point trajectory line is a convex function; that is, the axis center point trajectory line as a whole bulges toward the side close to the rear wall of the door.

[0423] In some embodiments of the present application, the maximum distance between the axis center point trajectory line and the door front wall 31 is recorded as the reversing midpoint I', the maximum distance between the guide trajectory line S and the door front wall 31 is the fourth guide point P4, and the maximum distance between the guide trajectory line K and the door front wall 31 is the sixth guide point Q6. Figure 5 The reversing midpoint I' is located on the side of the straight line P4Q6 where the fourth guide point P4 and the sixth guide point Q6 are located, close to the door side wall 32.

[0424] In some embodiments of the present application, the switching midpoint I' is close to the straight line P4Q6.

[0425] In some embodiments of the present application, the distance between the switching midpoint I' and the straight line P4Q6 is less than 1 mm.

[0426] In some embodiments of the present application, in ΔI`Q6P4 with the fourth guide point P4, the sixth guide point Q6, and the reversing midpoint I` as vertices, ∠I`P4Q6 is recorded as the second angle σ2, and ∠I`Q6P4 is recorded as the third angle σ3. Among them, the second angle σ2 = ∠I`P4Q6 is any value between 6° and 8°, and the third angle σ3 = ∠I`Q6P4 is any value between 4° and 6°. ∠Q6I`P4 is any value between 168° and 170°.

[0427] In some embodiments of the present application, the foot of the perpendicular of ΔI`Q6P4 above the edge Q6P4 passing through the commutation midpoint I` is recorded as I`` (not shown in the figure); wherein, the length of the line segment Q6I`` is recorded as |Q6I``|, the length of the line segment I``P4 is recorded as |I``P4|, and |Q6I``|:|I``P4| belongs to any value between 1 and 2.

[0428] In some embodiments of the present application, the reversing midpoint I' is located on the straight line P4Q6 where the fourth guide point P4 and the sixth guide point Q6 are located. That is, the reversing midpoint I', the fourth guide point P4, and the sixth guide point Q6 are collinear, and the straight line where they are located is approximately perpendicular to the door front wall 31.

[0429] It can be set that the reversing midpoint I', the fourth guide point P4 and the sixth guide point Q6 are collinear, and the straight line where they are located is approximately parallel to the door side wall 32. Wherein, approximately parallel includes the situation where the angle between the two is not greater than 1°.

[0430] In some embodiments of the present application, Figure 5 ,like Fig.16 and Fig.44 As shown, the axis center point trajectory formed by the door body 30 opening from the closed state to G8 has two intersections with the middle plane C. The axis center point trajectory includes a first axis center point trajectory segment and a second axis center point trajectory segment. The first axis center point trajectory segment extends from its end away from the door side wall 32 to the direction away from the door front wall 31 and close to the door side wall 32 to the reversing midpoint I'; the second axis center point trajectory segment extends from the reversing midpoint I' to the direction close to the door front wall 31 and the door side wall 32 to the eighth midpoint I8.

[0431] In some embodiments 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 (the eighth angle G8), the center point I of the axis first moves toward the side close to the door side wall 32 and away from the door front wall 31 relative to the door body 30, and passes through the middle plane C during the movement; then it moves toward the side close to the door side wall 32 and the door front wall 31, and passes through the middle plane C again during the movement.

[0432] The first axis center point trajectory segment intersects with the middle plane C at the first intersection point I1', and the second axis center point trajectory segment intersects with the middle plane C at the second intersection point I2'. The reversing midpoint I' is located on the side of the middle plane C away from the door front wall 31, and the eighth midpoint I8 and the starting midpoint I0 are both located on the side of the middle plane C close to the door front wall 31.

[0433] The distance between the commutation midpoint I' and the middle plane C is recorded as τ1, the distance between the starting midpoint I0 and the middle plane C is recorded as τ2, and the distance between the eighth midpoint I8 and the middle plane C is recorded as τ3.

[0434] In some embodiments of the present application, the switching midpoint I' is close to the middle plane C. As a configurable manner, τ1 is any value between 0 and 2 mm.

[0435] In some embodiments of the present application, τ2:τ1 belongs to any value among 3 to 4, and τ3:τ1 belongs to any value among 1 to 2.

[0436] In some embodiments of the present application, G`:G8 is any value between 0.6 and 0.75.

[0437] In some embodiments of the present application, when the door body 30 is opened to G1`, the axis center point I moves to the first intersection point I1`, and the axis center point I moves to the middle plane C. When the door body 30 is opened to G2`, the axis center point I moves to the second intersection point I2`, and the axis center point moves to the middle plane C; wherein G1`<G2`.

[0438] When the door body 30 is opened from G1' to G2', the center point I of the axis is located on the side of the middle plane C away from the door front wall 31. When the door body 30 is opened from the closed state to G1' and from G2' to G8, the center point I of the axis is located on the side of the middle plane C close to the door front wall 31.

[0439] In some embodiments of the present application, G1`:G` is any value between 0.4 and 0.6, and G`:G8 is any value between 0.6 and 0.75.

[0440] In some embodiments of the present application, when the door body 30 is opened to G3', the center point I of the axis moves to I3', and the distance between the center point (I3') of the axis and the middle plane C is τ3. That is, when the door body 30 is opened to G3', the distance between the center point I of the axis and the middle plane C is the same as when the door body 30 is opened to G8 (G max ) when the distance between the center point I of the axis and the middle plane C is equal.

[0441] In some embodiments of the present application, when the door body 30 is opened from G3' to G8, the center point I of the axis is close to the middle plane C. It can be set that the distance between the center point I of the axis and the middle plane C is less than 3mm. That is, when the door body 30 is opened from G3' to G8, the center point I of the axis is close to the middle plane C. The above settings enhance the stability of the door body 30 when it is opened.

[0442] In some embodiments of the present application, G3':G8 is any value between 0.16 and 0.2. G3':G' is any value between 0.24 and 0.3. That is, in the process of the door body 30 opening from the closed state to G8, the center point I of the axis in most of the stroke (0.8 to 0.94) is close to the middle plane C of the door body 30, which increases the stability of the door body 30 when opening.

[0443] In some embodiments of the present application, during the process of the door body 30 opening from G3` to G8, the middle plane C is located between the first center axis P and the second center axis Q, so that the force condition of the door body 30 during the opening process is better, thereby improving the stability of the opening of the door body 30.

[0444] In some embodiments of the present application, Figure 45-Figure 47 The bisector of the angle between the front door wall 31 and the side door wall 32 is recorded as the first bisector V1; the bisector of the angle between the rear door wall 33 and the side door wall 32 is recorded as the second bisector V2. In the projection of the plane where the top wall of the box body 10 is located, the first bisector V1 and the second bisector V2 intersect at the intersection point J.

[0445] During the opening process of the door body 30 relative to the box body 10 , the first angular bisector plane V1 and the second angular bisector plane V2 move with the door body 30 relative to the box body 10 ; and during the opening process of the door body 30 , the first angular bisector plane V1 and the second angular bisector plane V2 remain stationary relative to the door body 30 .

[0446] In some embodiments of the present application, the dihedral angle formed by the plane where the door front wall 31 is located and the plane where the door side wall 32 is located is 90°, and the dihedral angle formed by the plane where the door rear wall 33 is located and the plane where the door side wall 32 is located is also 90°.

[0447] In some embodiments of the present application, Figure 45-Figure 46 During the opening process of the door body 30, when the first central axis P moves to the fourth guide point P4 where the distance between the guide trajectory line S and the door front wall 31 is the largest, the opening angle of the door body 30 is the fourth angle G4. Relative to the door body 30, the center point I of the axis moves to the fourth midpoint I4. The fourth midpoint I4 coincides with the intersection point J. It should be noted that the coincidence of the fourth midpoint I4 and the intersection point J includes the case where the distance between the two points is not greater than any value of 0.3 mm.

[0448] That is, when the door body 30 is opened, when the first central axis P moves to the fourth guide point P4 where the distance between the guide trajectory line S and the door front wall 31 is the largest, the axis center point I moves to the intersection of the first angular bisector V1 and the second angular bisector V2.

[0449] In some embodiments of the present application, the distance between the fourth midpoint I4 and the intersection point J is recorded as λ1, and λ1 is any value not greater than 1 mm.

[0450] In some embodiments of the present application, the opening angle of the door body 30 is a fourth angle G4. When the first center axis P moves to the fourth guide point P4 where the distance between the guide trajectory line S and the door front wall 31 is the largest, the angle between the straight line where the axis line segment PQ is located and the first angle bisector V1 is less than 30°.

[0451] In some embodiments of the present application, the fourth angle G4: the commutation angle G' is any value between 0.4 and 0.6.

[0452] In some embodiments of the present application, Fig.46 When the door body is opened from the closed state to the fourth angle G4, the center point I of the axis is located on the side of the second angle bisector V2 away from the door side wall 32, and the center point I of the axis is close to the second angle bisector V2.

[0453] In some embodiments of the present application, when the door body is opened from a closed state to a fourth angle G4, the maximum distance between the axis center point I and the second angle bisector V2 is recorded as λ2; λ2 is any value between 0 and 2 mm.

[0454] In some embodiments of the present application, during the process of the door body opening from a closed state to a fourth angle G4, the distance between the center point I of the axis and the second angle bisector V2 first increases and then decreases.

[0455] In some embodiments of the present application, Figure 45-Figure 46 , the axis center point trajectory line has only one intersection point with the first angle bisector V1;

[0456] In some embodiments of the present application, the axis center point trajectory line has one and only one intersection point with the second angle bisector plane V2.

[0457] The intersection of the axis center trajectory line and the first angle bisector plane V1 is recorded as the first point I J1 , and the intersection with the second angle bisector V2 is recorded as the second point I J2 .

[0458] In some embodiments of the present application, the first point I J1 The distance between the second angle bisector V2 and the second point I is any value between 0 and 0.5 mm. J2 The distance from the first angle bisector V1 is any value between 0 and 1 mm.

[0459] In some embodiments of the present application, the first point I J1 And the second point I J2 All are close to the intersection J. The first point I J1 The distance between the intersection point J and the second point I J2 The distance from the intersection point J is any value between 0 and 1 mm.

[0460] In some embodiments of the present application, the first point I J1 The distance between the intersection point J is less than 0.5mm, and the second point I J2 The distance to the intersection point J is less than 1 mm.

[0461] In some embodiments of the present application, Fig.47 As shown, when the door body 30 is in a closed state, the first axis 41 and the second axis 42 are located on opposite sides of the second angular bisector plane V2, and both the first axis 41 and the second axis 42 are located on the side of the first angular bisector plane V1 close to the door front wall 31. This allows the door body 30 to generate a greater lateral displacement (perpendicular to the direction of the first body side wall) relative to the box body 10 during the process of opening or closing the door body 30.

[0462] In some embodiments of the present application, when the door body 30 is in a closed state, the center point I of the axis (the starting center point I0) is close to the second angle bisector V2.

[0463] In some embodiments of the present application, when the door body 30 is in a closed state, the distance between the center point I of the axis (the starting center point I0) and the second angle bisector V2 is any value between 0 and 2 mm.

[0464] In some embodiments of the present application, when the door body 30 is in a closed state, the distance between the first central axis P and the second angle bisector plane V2 is denoted as λ P , the distance between the second central axis Q and the second angle bisector V2 is denoted as λ Q ; Among them, λ P :λ Q ≤1.

[0465] In some embodiments of the present application, P :λ Q Any value between 0.4 and 0.6.

[0466] In some embodiments of the present application, a first limiter is provided on the first hinge, and a second limiter is provided on the second hinge; the second limiter is used to open the door body 30 to the maximum angle G maxAt (the eighth angle G8), it cooperates with the first limit member to limit the first hinge member from continuing to rotate and open relative to the second hinge member, thereby preventing the door body 30 of the refrigerator placed in the storage cabinet 100 from continuing to open and colliding with the storage cabinet 100, thereby causing damage to the door body 30.

[0467] In some embodiments of the present application, the second stopper is a stopper provided at the lower end of the door body 30; the first stopper is provided as a stopper surface located at the end of the hinge plate 40 away from the box body 10 and close to the side wall of the first body. max ) when the position limiting portion abuts against the position limiting surface, thereby stopping the door body 30 from continuing to rotate.

[0468] In some embodiments of the present application, when the positioning center axis P moves to the eighth positioning point P8 and the second center axis Q moves to the eighth guide point Q8, the limiting portion at the lower end of the door body 30 abuts against the limiting surface of the hinge plate 40 to allow the door body 30 to open to the maximum angle, thereby preventing the door body 30 placed in the storage cabinet 100 from colliding with the storage cabinet when opened to the maximum angle and causing damage to the door body 30.

[0469] In some embodiments of the present application, Figure 5-Figure 15 As shown, in this embodiment, a first reference plane M1 and a second reference plane M2 are further defined. Fig.15 As shown, the first reference plane M1 is a plane parallel to the reference plane M0 and perpendicular to the plane where the access port is located. The first reference plane M1 is the plane where the inner wall of the storage cabinet 100 adjacent to the first body side wall is located; that is, the first reference plane M1 is parallel to the first body side wall, and the distance between it and the first body side wall is α`; the second reference plane M2 is the plane where the access port of the storage room is located. The first reference plane M1 and the second reference plane M2 will not move with the door body 30 when it is opened relative to the box body 10, and are reference planes that remain stationary relative to the box body 10.

[0470] During the opening of the door body 30, the first side edge W moves with the opening of the door body 30, and its movement trajectory is recorded as the first side edge trajectory line. In the projection of the top wall of the box body 10, during the opening of the door body 30, the first side edge W first moves toward the direction close to the first reference plane M1 and the second reference plane M2, and then moves away from the first reference plane M1 and toward the second reference plane M2.

[0471] In some embodiments of the present application, when the door body 30 is opened to G2, the first central axis P moves to the second guide point P2 of the guide trajectory line S; at this time, the distance between the first side edge W and the reference plane M0 is the largest. The distance of the first side edge W approaching the first reference plane M1 is controlled to be less than the minimum distance between the refrigerator and the inner wall of the storage cabinet 100 when the door body 30 of the refrigerator is closed, thereby effectively avoiding interference between the door body 30 and the storage cabinet 100.

[0472] In some embodiments of the present application, G2∈[16°, 25°] is any value. That is, when the door body 30 is opened to a smaller angle, the first side edge W has moved to the position farthest from the first body side wall during the entire opening process of the door body 30.

[0473] In some embodiments of the present application, a straight first guide line and a curved second guide line are set in combination with the guide trajectory line S. When the first central axis P moves to the connection point between the first guide line and the second guide line during the opening of the door body 30, the distance between the first side edge W and the reference plane M0 is the largest. That is, when the first central axis P moves to the end point of the straight first guide line close to the door side wall 32 during the opening of the door body 30, the distance between the first side edge W and the reference plane M0 is the largest.

[0474] In some embodiments of the present application, when the door body 30 is opened to G4, the first central axis P moves to the fourth guide point P4 where the distance between the guide track line S and the door front wall 31 is the largest. At this time, the distance between the first side edge W and the reference plane M0 is the largest.

[0475] During the opening of the door body 30, the second side edge N moves with the opening of the door body 30, and its movement trajectory is recorded as the second side edge trajectory line. In the projection of the top wall of the box body 10, during the opening of the door body 30, the second side edge N first moves away from the first reference plane M1 and close to the second reference plane M2, and then moves away from the first reference plane M1 and the second reference plane M2.

[0476] In some embodiments of the present application, when the door body 30 is opened to G2, the first central axis P moves to the second guide point P2 of the guide trajectory line S; at this time, the distance between the second side edge N and the second reference plane M2 is the smallest.

[0477] In some embodiments of the present application, G2∈[16°, 25°] is any value. That is, when the door body 30 is opened to a smaller angle, the second side edge N has moved to a position where the distance from the second reference plane M2 is the smallest during the entire opening process of the door body 30. This is to control the distance of the second side edge approaching the access opening to avoid interference between the second side edge N and the box body 10.

[0478] In some embodiments of the present application, a straight first guide line and a curved second guide line are set in combination with the guide trajectory line S. When the first central axis P moves to the connection point between the first guide line and the second guide line during the opening of the door body 30, the distance between the first side edge W and the reference plane M0 is the largest. That is, when the first central axis P moves to the end point of the straight first guide line close to the door side wall 32 during the opening of the door body 30, the distance between the second side edge N and the plane where the access port is located (the second reference plane M2) is the smallest.

[0479] During the opening of the door body 30, the side sealing edge F moves with the opening of the door body 30, and its movement trajectory is recorded as the side sealing edge trajectory line. In the projection of the top wall of the box body 10, during the opening of the door body 30, the side sealing edge F first moves away from the first reference plane M1 and close to the second reference plane M2, then moves away from the first reference plane M1 and the second reference plane M2, and then moves close to the first reference plane M1 and away from the second reference plane M2. The above arrangement is that in the final stage of the opening of the door body 30, the side sealing edge F moves outward, which can avoid the door body 30 blocking the access port due to the inward movement of the side sealing edge F in the early stage of the opening of the door body 30, thereby increasing the space utilization rate of the storage drawer to the lateral size of the storage room.

[0480] In some embodiments of the present application, when the door body 30 is opened to G1, the distance between the side sealing edge F and the second reference plane M2 is the smallest.

[0481] In some embodiments of the present application, G1∈[10°, 15°] is any value. That is, when the door body 30 is opened to a smaller angle, the side sealing edge F has moved to a position where the distance from the second reference plane M2 is the smallest during the entire opening process of the door body 30. This allows the door seal 5 to quickly move away from the box body 10, reducing the amount of compression on the door seal 5 during the opening process of the door body 30.

[0482] In some embodiments of the present application, the door body 30 is opened to G F When the side sealing edge F is at the maximum distance from the side wall of the first body, F The plane which is parallel to the side sealing edge F of the first body and is defined as a third reference plane M3 (not shown in the figure). The third reference plane M3 does not move during the opening process of the door body 30 relative to the box body 10 and is a reference plane which remains stationary relative to the box body 10.

[0483] In some embodiments of the present application, G FThe above limitation makes the distance between the side sealing edge F and the side wall of the first body maximum when the door body 30 is opened to about 90 degrees, so that in the later stage of the door body 30 opening, the side sealing edge F has a larger opening stroke to move outward, thereby more compensating for the displacement of the side sealing edge F moving inward in the early stage of the door body 30 opening, so as to reduce the blocking of the door body 30 to the access port to a greater extent.

[0484] In some embodiments of the present application, the door body 30 is opened from the closed state to the maximum angle G max During the process of (the eighth angle G8), the second side edge N is entirely located on the side of the third reference plane M3 close to the side wall of the first body.

[0485] In some embodiments of the present application, when the door body 30 is opened to the maximum angle G max During the process of (eighth angle G8), the door sealing edge F is located between the second side edge N and the third reference plane M3 (including the third reference plane M3), so as to avoid the door body 30 opening at too large an angle and causing the second side edge N to become the main factor affecting the lateral dimension of the access opening. That is, during the process of the door body 30 opening, the second side edge N is always located outside the side sealing edge F. That is, when the door body 30 is opened by G F To the maximum angle G max (Eighth Angle G8) During the opening process, as the opening angle of the door body 30 increases, the blocking of the access opening by the door seal 5 gradually decreases, and the blocking of the access opening by the door body 30 gradually decreases, thereby increasing the lateral size of the drawer installed in the storage room, increasing the space utilization rate of the storage room, and making it convenient for users to take and place items stored on the door body shelf.

[0486] In some embodiments of the present application, during the opening process of the door body 30 , the sum of the forces acting on the first shaft 41 and the second shaft 42 remains relatively constant.

[0487] In some embodiments of the present application, the sum of the forces acting on the first shaft 41 and the second shaft 42 fluctuates within the range of [F-3, F+3], where the unit is Newton.

[0488] In some embodiments of the present application, during the closing process of the door body 30 , when the door body 30 is closed to G1 ″, the sum of the forces acting on the first shaft 41 and the second shaft 42 begins to increase as the door body 30 continues to close.

[0489] In some embodiments of the present application, when the door body 30 is closed from G1`` to G2``, the sum of the forces acting on the first shaft 41 and the second shaft 42 increases to the maximum value during the entire process of opening or closing the door body 30. When the door body 30 continues to close from G2``, the sum of the forces acting on the first shaft 41 and the second shaft 42 begins to decrease.

[0490] In some embodiments of the present application, when the door body 30 is closed from G2`` to G3``, the sum of the forces acting on the first shaft 41 and the second shaft 42 is substantially equal to the sum of the forces acting when the door body 30 is closed to G1``.

[0491] In some embodiments of the present application, a first matching portion is provided on the first hinge member, and a second matching portion is provided on the second hinge member; the second matching portion is used to cooperate with the first matching portion to unlock or lock the door body 30 and the box body 10.

[0492] When the door body 30 is closed, when the door body 30 is closed to G1``, the first matching part contacts the second matching part; when the door body 30 is closed to G3``, the first matching part and the second matching part are locked. In the process of the door body 30 closing from G1`` to G3``, the second matching part first undergoes elastic deformation and converts into elastic potential energy, and then releases the elastic potential energy to drive the door body 30 to close automatically.

[0493] In some embodiments of the present application, when the door body 30 is closed to G2``, the elastic deformation of the second matching portion is maximum.

[0494] In some embodiments of the present application, the guide line S includes a first guide line and a second guide line connected to one end of the first guide line close to the door side wall 32; the first guide line is an arc, and the second guide line is a curve.

[0495] Compared with the arrangement of the first guide line as a straight line and the arrangement of the first guide line as an arc, the first guide line is arranged as a straight line, so that the first shaft 41 moves relative to the door body 30 toward the side close to the door rear wall 33, so that the first shaft 41 is subjected to force and has a better effect of reducing wear. Because in actual production and processing, compared with the processing of straight lines, it is difficult to control the processing error of curves (including arcs), and the detection performance is poor, which may easily cause the door body 30 to be not smooth when opening or closing.

[0496] In some embodiments of the present application, the guide line S includes a first guide line and a second guide line connected to one end of the first guide line close to the door side wall 32; the first guide line is an arc, and the second guide line is an arc.

[0497] In some embodiments of the present application, the guide line S includes a first guide line and a second guide line connected to one end of the first guide line close to the door side wall 32; the first guide line is a straight line, and the second guide line is an arc.

[0498] In some embodiments of the present application, the first guide line and the second guide line are connected tangentially.

[0499] In some embodiments of the present application, the first guide line extends from the end away from the door side wall 32 toward the direction close to the door side wall 32 and the door rear wall 33, and the second guide line extends from the end of the first guide line close to the door side wall 32 first toward the direction close to the door side wall 32 and the door rear wall 33, and then extends toward the direction close to the door side wall 32 and the door front wall 31.

[0500] In some embodiments of the present application, Figure 48-Figure 52 As shown, the guide track S includes a first guide line (P0P2), a second guide line (P2P2`) connected to one end of the first guide line close to the door side wall 32, and a third guide line (P2`P8) connected to one end of the second guide line close to the door side wall 32. The first guide line is a straight line, the second guide line is an arc, and the third guide line is a straight line. The connection point between the first guide line and the second guide line is P2, and the connection point between the second guide line and the third guide line is P2`.

[0501] In some embodiments of the present application, a first straight guide line extends from an end away from the door side wall 32 toward a direction close to the door side wall 32 and the door rear wall 33, a second arc-shaped guide line extends from an end of the first guide line close to the door side wall 32 first toward a direction close to the door side wall 32 and the door rear wall 33, and then toward a direction close to the door side wall 32 and the door front wall 31, and a third straight guide line extends toward a direction close to the door side wall 32 and the door front wall 31.

[0502] In some embodiments of the present application, the first guide line, the second guide line and the third guide line are sequentially tangentially connected.

[0503] In some embodiments of the present application, the center of the circle where the arc-shaped second guide line (P2P2') is located is close to the straight line P0P8 where the starting guide point P0 and the eighth guide point P8 are located.

[0504] In some embodiments of the present application, the center of the circle where the arc-shaped second guide line (P2P2') is located is located on the straight line P0P8 where the starting guide point P0 and the eighth guide point P8 are located.

[0505] In some embodiments of the present application, the distance between the center of the circle where the arc-shaped second guide line (P2P2') is located and the straight line P0P8 is any value between 0 and 2 mm.

[0506] In some embodiments of the present application, the center of the circle where the arc-shaped second guide line (P2P2') is located is located on the side of the straight line P0P8 close to the door rear wall 33 and the door side wall 32.

[0507] In some embodiments of the present application, the angle between the first straight guide line (P0P2) and the door front wall 31 is any value between 17° and 21°; the angle between the third straight guide line (P0P2`) and the door front wall 31 is any value between 65° and 70°.

[0508] In some embodiments of the present application, the center of the circle where the second arc-shaped guide line is located is recorded as O2, wherein the angle between the straight line O2P2 and the door front wall 31 is any value between 69° and 73°; the angle between the straight line O2P2` and the door front wall 31 is any value between 20° and 25°. The above defines the extension trend of the guide trajectory line S, so that the guide trajectory line S is smoothly extended and matched with the guide trajectory line K to guide the movement of the first central axis P and the second central axis Q.

[0509] In some embodiments of the present application, ∠P2O2P2` is any value between 83° and 90°.

[0510] In some embodiments of the present application, see Fig.50 The angle between the straight line P0P4 where the starting guide point P0 and the fourth guide point P4 are located and the straight line P4P8 where the fourth guide point P4 and the eighth guide point P8 are located is recorded as γ1, and γ1=∠P0P4P8 is an obtuse angle.

[0511] In some embodiments of the present application, γ1 is any value between 100° and 120°.

[0512] In some embodiments of the present application, γ1 is any value between 110° and 114°. The above limitation on γ1 limits the extension trend of the guide trajectory line S, so that when the first center axis P moves relative to the guide trajectory line S and the second center axis Q moves relative to the guide trajectory line K in coordination with the guide trajectory line, the door body 30 is driven to move inward and forward, thereby reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30, so that the door body 30 placed in the storage cabinet 100 can be opened to more than 115°.

[0513] In some embodiments of the present application, see Fig.50 The straight line between the starting guide point P0 and the eighth guide point P8 is recorded as P0P8. The point on the guide trajectory line S with the maximum distance from the straight line P0P8 is recorded as the first inflection point P n . Among them, γ2=∠P0P n P8 is an obtuse angle.

[0514] In some embodiments of the present application, γ2 = ∠P0P n P8 is any value between 100° and 115°.

[0515] In some embodiments of the present application, γ2 = ∠P0P nP8 belongs to any value between 105° and 109°. The above limitation on γ1 limits the extension trend of the guide trajectory line S, so that when the first center axis P moves relative to the guide trajectory line S and the second center axis Q moves relative to the guide trajectory line K in coordination with the guide trajectory line, the door body 30 is driven to move inward and forward, thereby reducing the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30, so that the door body 30 placed in the storage cabinet 100 can be opened to more than 115°.

[0516] In some embodiments of the present application, the door body 30 is opened to G n When the first axis 41 moves to the first inflection point P n , at this time, the first side edge W is located outside the plane where the door side wall 32 is located when the door body 30 is closed. n The distance between the first side edge W and the first reference plane M1 when the door body 30 is in the closed state is smaller than the distance between the first side edge W and the first reference plane M1 when the door body 30 is in the closed state.

[0517] In some embodiments of the present application, when the door body 30 is opened, the first axis 41 moves to the first inflection point P n Before, that is, the door body 30 opens at an angle less than G n When the door body 30 is opened, the first side edge W of the door body 30 is outside the plane where the door side wall 32 is located when the door body 30 is closed (the side away from the second body side wall). The above design is because if the first side edge W is not outside the plane where the door side wall 32 is located when the door body 30 is closed, the door body 30 needs to be displaced inwardly to a large extent, which will cause the angle between the two slide grooves to be too small, and it is easy to self-lock and get stuck. Therefore, when the door body 30 is opened, the first side edge W is outside the plane where the door side wall 32 is located when the door body 30 is closed, and the excess distance does not affect the embedded clearance requirements.

[0518] In some embodiments of the present application, the distance between the first side edge W when the door body 30 is open and the outside of the plane where the door side wall 32 is located when the door body 30 is closed is controlled to be between 1-2 mm. Because when the refrigerator 10 is embedded in the storage cabinet 100, the distance between the storage cabinet 100 and the door of the refrigerator needs to reserve at least 2 mm of space to prevent the situation where the ground is uneven or the storage cabinet 100 is deformed and causes insufficient space. Otherwise, the refrigerator cannot be pushed into the storage cabinet 100. If there is no gap, the refrigerator cannot be pushed into the storage cabinet space.

[0519] In some embodiments of the present application, the door body 30 is opened to G n When the first central axis P moves to the first inflection point P of the guide trajectory line S n At this time, the distance between the first side edge W and the reference plane M0 is the largest. That is, at this time, the distance between the first side edge W and the first reference plane M1 is the smallest.

[0520] In some embodiments of the present application, when the door body 30 is in the closed position, the minimum distance between the position of the first axis 41 in the guide portion 50 and the guide portion 60 is recorded as the first distance A1.

[0521] The door body 30 is opened, and the first axis 41 moves to the first inflection point P of the guide trajectory line S. n When the first axis 41 in the guide portion 50 is located at a position where the first axis 41 is located, the minimum distance between the guide portion 60 is recorded as the second distance A2.

[0522] A1 and A2 are both any value between 0 and 5 mm, so that the structure of the guide part 50 and the guide part 60 is more compact, and the door body can be made thinner, so that when the door body 30 is opened at an angle of 90°, the door body 30 is located on the inner side of the first body side wall, and the distance between the door body 30 and the first body side wall is increased.

[0523] In some embodiments of the present application, A1 and A2 are both any value between 1.5 mm and 3 mm, which on the one hand makes the structure of the guide part 50 and the guide part 60 more compact, and on the other hand ensures the strength of the guide part 50 and the guide part 60.

[0524] As a measurement method, the guide portion 50 is set as a guide groove, and the guide portion 60 is set as a guide groove; the guide trajectory line is the center trajectory line of the guide groove, and the guide trajectory line is the center trajectory line of the guide groove;

[0525] The groove wall of the guide groove close to the guide groove is recorded as the first guide wall, and the groove wall of the guide groove close to the guide groove is recorded as the first guide wall; that is, the groove wall of the guide groove close to the door rear wall 33 is the first guide wall, and the groove wall of the guide groove close to the door front wall is the first guide wall.

[0526] In the plane where the top wall of the box is located, the straight line passing through the first central axis P and intersecting the guide track line K is recorded as the measuring line. The measuring line intersects with the first guide wall at the first test point U1, and the measuring line intersects with the first guide wall at the second test point U2. The distance between the position where the first axis 41 in the guide part 50 is located and the guide part 60 is the distance between the first test point U1 and the second test point U2 |U1U2|. The minimum distance between the position where the first axis 41 in the guide part 50 is located and the guide part 60 |U1U2| is determined by changing the angle between the test line passing through the first central axis P and the guide track line K and the door front wall 31. min , the size of A1 and A2 can be obtained by this method. In the above, the first distance A1 is less than the second distance A2.

[0527] In some embodiments of the present application, see Fig.50 , the guide trajectory line S includes a straight first guide line and a second guide line connected to the first guide line. The straight line where the second guide point P2 and the eighth guide point P8 are located is recorded as P2P8. The point on the second guide line with the maximum distance from the straight line P2P8 is recorded as the second inflection point Pm . Among them, γ3=∠P2P m P8 is an obtuse angle.

[0528] In some embodiments of the present application, γ3=∠P2P m P8 is any value between 100° and 120°.

[0529] In some embodiments of the present application, γ3=∠P2P m P8 is any value between 110° and 113°.

[0530] In some embodiments of the present application, Figure 51-Figure 52 As shown, it is assumed that the distance between the first central axis P or the second central axis Q and the first body side wall is a, and the distance between the first body side wall and the containing cabinet is m;

[0531] The plane located on the side of the first body side wall away from the second body side wall and at a distance m from the first body side wall (such as the inner wall of the storage cabinet 100 close to the box body 10) is recorded as the first reference plane M1; the plane passing through the first side edge and parallel to the plane where the access port is located is recorded as the fourth reference plane M4; the first reference plane M1 and the fourth reference plane M4 intersect at the limit edge line L x ;

[0532] When the door body 30 is in a closed state, the door front wall 31 of the door body 30 is flush with the fourth reference plane M4, and the opening end face defined by the storage cabinet is flush with the fourth reference plane M4, that is, when the door body 30 is closed, the door front wall 31 is flush with the opening end face defined by the storage cabinet; at this time, the center axis (taking the first center axis P as an example in the accompanying drawings) whose distance from the first body side wall is a is at a distance from the door front wall 31.

[0533] When the door body 30 is opened to 90°, the distance between the door body 30 and the side wall of the first body is x;

[0534] When the door body 30 is opened at an angle of 90°+α (maximum angle G max (=eighth angle G8), the door body 30 and the limiting edge line L x (the end of the opening defined by the storage cabinet 100) is in contact; at this time, the center axis (taking the first center axis P as an example in the accompanying drawings) whose distance from the side wall of the first body is a is whose distance from the front wall of the door is b.

[0535] Among them, (ax)tanα+b / cosα=a+m.

[0536] Among them, m≥0, then (ax)tanα+b / cosα≥a.

[0537] There are 5 variables in the above equation:

[0538] The first center axis P is a away from the first body side wall when the door is opened 90°. The distance between the door body and the first body side wall is x. The maximum rotation angle is 90°+α. When rotating 90°+α, the distance between P and the front wall of the door is b, and the distance between the first body side wall and the storage cabinet is m.

[0539] When designing the trajectory of the hinge assembly, in order to ensure the best use of the biaxial hinge, m is generally a fixed value, and the smaller the better. The larger the angle +α, the better; it can be set, 0°≤α≤45°.

[0540] In some embodiments of the present application, 15°≤α≤45°. When the door body 30 is opened to 90°, the smaller the distance x offset to the inner side of the first body side wall, the better, and 0 is the best. a is the axis positioning dimension, and b is the track positioning dimension.

[0541] Example: When m=3, α=30°, x=0, that is, the distance between the first body side wall and the cabinet side wall is 3, the maximum rotation angle is 120°, and the front wall of the door is flush with the first body side wall when the door is opened 90°. At this time, atan30°+b / cos30°=a+3, b=[(a+3)-atan30°]cos30°

[0542] Among them, the relationship between x and α is as follows:

[0543] Assuming that m, a, and b are known data, a+m is a constant. The larger α is, the smaller cosα is. The larger b / cosα is, the larger tanα is (0<tanα≤1). To satisfy the equation, (ax)tanα is smaller, ax is smaller, and x must be larger.

[0544] Assuming x=0 (i.e. the front wall of the door is flush with the side wall of the first body when the door is opened at 90 degrees), atanα+b / cosα=a+m. By specifying a, b, and m, the α+90° obtained at this time is the maximum rotation angle.

[0545] In some embodiments of the present application, a method for designing the shape of a guide portion and a guide portion is provided. The details are as follows:

[0546] (1) Set design conditions.

[0547] During the process of the door body 30 opening angle 0-90°, the door body protrudes from the right side wall of the refrigerator by less than m=1.5mm, the door seal compression amount is less than n=0.2mm, and when the door body 30 is opened to 90°, the retraction distance of the door body 30 relative to the first body side wall is less than s=5mm, and the door opening angle Before the degrees, the motion trajectory of the first axis is a straight line with an angle of γ, the radius of the transition arc is r, the terminal straight line is a straight line with an angle of λ, and the overall trajectory is a straight line connecting an arc, and an arc connecting another straight line.

[0548] (2) Design according to the set design conditions. The specific design method is as follows:

[0549] (2.1) Set the movement of the first and second axes when the door is opened.

[0550] xoy is the plane coordinate system, the x-axis is positive to the left, and the y-axis is positive to the top. Assume that the initial position of the first axis is (x0, y0), and the 120° end point position is set to (x z ,y z ) The thickness of the door body is h. Assuming that the door body rotates around the fixed axis, when the door rotates by an angle of θ degrees, the lower right corner of the door body exceeds the box body c1, and the door body compresses the door seal by a compression amount c2.

[0551] When designing the moving axis trajectory, the door body should rotate at an angle less than Do fixed axis rotation before the degree; The upper right corner of the door seal (side seal edge) is tangent to a straight line located on the rear wall of the door when the door is closed, close to the access port, and with a distance of 0.2 mm from the side wall of the door. The lower right corner of the door (the first side edge) is tangent to the 1.5mm line of the refrigerator side wall; The lower right corner of the door body (the first side edge) is gradually retracted.

[0552] When the angle is 90° to 120°, the trajectory moves along a circular arc.

[0553] (2.2) Determine the parameter range based on the set conditions.

[0554] Establish as Fig.53 In the coordinate system shown, assume that the starting point of the first axis is (x0, y0), the thickness of the door body is h, the thickness of the door seal (the dimension perpendicular to the rear wall of the door) is d, and the horizontal distance between the upper right corner of the door seal (side seal edge) and the first axis is l.

[0555] but:

[0556]

[0557]

[0558]

[0559]

[0560] like Fig.53 As shown in the figure, when the door body rotates θ°, the length of the lower right corner of the door body (the first side edge) beyond the box body is c1, then:

[0561] c1=r1·cos(α-θ)-x0

[0562] Similarly, when the door body rotates θ°, the length of the door strip compressed by the upper door angle is c2, then:

[0563] c2=r2·cos(β-θ)-h-d+y0

[0564] (2.2.1) Part 1 - Fixed-axis rotation

[0565] When c2≤0.2mm, the position of the first axis remains unchanged, and the refrigerator door rotates along a fixed axis.

[0566] at this time,

[0567] (2.2.2) Part 2 - Linear Motion

[0568] when When the door moves along the straight line of γ degrees, Fig.54 .

[0569] Fig.54 In the middle, the door seal compression is maintained at 0.2mm, and the lower right corner of the door body (the first side edge) exceeds the door body by 1.5mm (the solid line on the right is the 1.5mm line)

[0570] Therefore, the angle γ can be expressed as:

[0571]

[0572] Depend on Fig.54 Knowable

[0573]

[0574]

[0575] In rotation angle Before, the first axis has been moving along the line of angle γ, and the lower right corner of the door body (the first side edge) has been tangent to the 1.5mm line.

[0576] At this time, after the lower right corner of the door body is tangent to the 1.5mm line, the relationship between the first axis position coordinate (x, y) and x0, y0, h and θ is:

[0577]

[0578] y=x·tanγ

[0579] (2.2.3) Part 3 - Movement along an arc

[0580] According to the previous text, the starting point of the first straight line (x0, y0,) is known to have a slope The vertical coordinate of the first axis position at 90° is x0-5 (according to the design requirements, the refrigerator door should be less than 5mm when the door opening angle is 90°, so (x90 ,y 90 ) should be (x 90 , x0-5)). The end point position coordinates (x z ,y z ). Unknown, the point where the arc intersects with the first straight line is (x2, y2), and the horizontal coordinate of the first axis position at 90° is x 90 .

[0581] like Fig.55 As shown, when x 90 When both R and radius R are uncertain, R or x 90 Any change in one item will cause a change in the other. Therefore, if you want to solve the arc motion trajectory, you need to determine x 90 , or set the radius R of the arc. In order to facilitate the design and calculation principles, the radius R of the arc is assumed to be known.

[0582] Depend on Fig.55 Easy to get:

[0583]

[0584] R is known;

[0585] Then Ω=Υ+λ;

[0586] First part of the straight line:

[0587] Given (x0, y0) and slope tanγ, the first part of the equation is:

[0588] tanγ(x-x0)=(y-y0)

[0589] The equation of the second line is:

[0590] tanλ(xx z )=(yy z )

[0591]

[0592] The above equations can be solved by combining the equations containing x 90 The equation

[0593]

[0594]

[0595] but

[0596] Let a and Ω contain x 90 Substitute the expression into You can get x 90 coordinate.

[0597] Similarly, Knowing a, we can calculate the (x2, y2) coordinates.

[0598] Based on the relationship between x and x0, y0, h and θ in the previous text, the angle of the point can be determined.

[0599] (2.2.4) Part 4 - Movement along a straight line

[0600] According to the third part, (x 90 ,y 90 ) coordinates, determine the angle of the straight line after 90°

[0601]

[0602] If the coordinates of the end point are known, the straight line segment can be determined.

[0603] Draw a trajectory with a set radius R, see Fig.48 and Fig.49 Use this track as the center line track of the first axis guide groove to achieve the expected requirements.

[0604] In some embodiments of the present application, a method for designing the shape of the guide portion 50 and the guide portion 60 is provided. The details are as follows:

[0605] (1) Set design conditions.

[0606] When the door 30 is opened from 0 to 90°, the distance of the door beyond the side wall of the first body of the refrigerator is less than m = 1.5 mm, the compression of the door seal is less than n = 0.2 mm, and the door is less than s = 5 mm inward relative to the side wall of the first body when the door is opened to 90°. The maximum opening angle of the door is 120°, and the movement is smooth. When closing the door, the distance from the right side wall of the door to the wall is l = 2.2 mm, and the thickness of the door seal (the dimension perpendicular to the rear wall of the door) is d. Determine the geometric relationship between the key points of the first axis and the second axis and the door opening angle.

[0607] (2) Design according to the set design conditions. The specific design method is as follows:

[0608] (2.1) The relationship between the proposed relative coordinate system.

[0609] like Figure 56-Figure 59 As shown, xoy is the basic coordinate system, the x-axis is positive to the left, the y-axis is positive downward, and the coordinates of the two axes (the first central axis and the second central axis) are (x1, y1)(x2, y2). x'o'y' is the door coordinate system, the x-axis is positive to the left, the y-axis is positive downward, and the coordinates of the lower left and upper right points of the guide block on the door body are (x a ',y a ')(x b',y b ').

[0610] See also Fig.56 During the door opening process, the dual-axis coordinates must always be within the guide block coordinates and meet the design requirements. The rotation angle of the coordinate system x'o'y' relative to the basic coordinate system xoy is the door rotation angle θ. According to the rotation angle and trajectory equation, the coordinate point corresponding to the angle is calculated, converted into the basic coordinate expression, and the geometric relationship is obtained.

[0611] Plane coordinate system transformation matrix:

[0612]

[0613] The coordinate transformation formulas below are all derived from this formula.

[0614] (2.2) Determine the parameter range based on the specific angle.

[0615] (2.2.1) Position analysis of the door body 30 in the closed state (opening angle is 0°).

[0616] according to Fig.56 It can be seen that when the rotation angle is 0°, the x'o'y' gate coordinate system is obtained by translating the xoy base coordinate system. a ',y a ')(x b ',y b ') is expressed in xoy basis coordinates as (x a1 ,y a1 )(x b1 ,y b1 ).

[0617] x a '+l=x a1

[0618] y a '+d=y a1

[0619] x b '+l=x b1

[0620] y b '+d=y b1

[0621] x a1 <x1(x2)<x b1

[0622] y a1 <y1(y2)<y b1

[0623] (2.2.1) Analysis of the position where the door body 30 is opened at an angle of 120°.

[0624] It is known that the refrigerator door rotates 120 degrees, and the outer wall of the refrigerator door is tangent to the end of the storage cabinet that defines its opening. Fig.57 .

[0625] It is known that the first axis and the second axis need to fall on the gate coordinate system (x a ',y a ')(x b ',y b '), the door coordinate system moves left by a, moves down by b, and rotates 120°.

[0626] At this time, the relationship between b and a is:

[0627] bh sinθ=-(haa cosθ)tanθ(θ=120°)

[0628] b=h sinθ-[ha(1+cosθ)]tanθ

[0629] When the door opens 120°, the geometric relationship between the door and the dual axis is determined by a. The value range of a can be obtained through coordinate transformation:

[0630] At this time (x a ',y a ')(x b ',y b ') is expressed in xoy basis coordinates as (x a2 ,y a2 )(x b2 ,y b2 ).

[0631] x a 'cosθ+y a 'sinθ+l+b=x a2

[0632] y a 'cosθ-x a 'sinθ+d+a=y a2

[0633] x b 'cosθ+y b 'sinθ+l+b=x b2

[0634] y b 'cosθ+x b 'sinθ+d+a=y b2

[0635] x a2 <x1(x2)<xb2

[0636] y a2 <y1(y2)<y b2

[0637] In the above formula, b can be represented by a, and the value range of a can be determined according to the above inequality. Since the expression is too long, it will not be expanded here.

[0638] At the same time, if the value of a is determined, the value range of the coordinates of the first axis and the second axis can be obtained, thereby adjusting the positions of the first axis and the second axis.

[0639] (3) The geometric relationship of the door body when the first axis moves along the linear first guide line.

[0640] See also Fig.57 As shown, it is known that in the first straight line motion, the projection (x2', y2') of the first axis (x2, y2) in the x'o'y' door coordinate system moves along a straight line with an angle of γ and is tangent to the right side of the refrigerator door at m = 1.5 mm; the refrigerator door rotates at the tangent point of the trajectory straight line and the trajectory arc As the door rotates, the relationship between a and b is:

[0641] a=door angle excess - door angle downward displacement

[0642] Door angle excess = c2 (see details as follows Figure 53-Figure 55 The corresponding design method mentioned above)

[0643]

[0644]

[0645] b=h sinθ

[0646] According to the coordinate transformation principle, (x2', y2'):

[0647] x2'=x2 cosθ+y2 sinθ-bl

[0648] y2'=y2 cosθ-x2 sinθ+ad

[0649] According to the coordinate conversion rules, the projections of the first axis and the second axis (x1, y1) (x2, y2) in the gate coordinate system x'o'y' can be obtained at 0 degrees and 120 degrees. (See Fig.58 The dotted circle part)

[0650] (4) The geometric relationship of the door when it is opened to 90°.

[0651] like Fig.59As shown, at this time, the front wall of the refrigerator door is parallel to the side wall of the storage cabinet, b=s+h, and the specific geometric relationship depends on the downward displacement a.

[0652]

[0653] According to this formula, the value range of a can be determined.

[0654] It should be noted that the "arc" involved in the present invention includes the standard arc in the standard mathematical definition (the part between any two points on the circle), and also includes a curve that has a small deviation from the standard arc in the standard mathematical definition due to processing errors or micro-deformation or micro-wear of parts or reserved gaps or its own performance, but still has arc characteristics (such as deviation around the arc).

[0655] It should be added that, as a setting for accurately controlling the door body 30 to rotate open and move in a specific direction, the first hinge and the second hinge need to form a structural setting with various trajectory characteristics. It is necessary to achieve the coordination of the first hinge and the second hinge through refined design, so as to finally achieve the precise control of the door body 30 to perform complex movements.

[0656] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0657] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that include: A box body defines a storage chamber having a take-in and put-out opening; the box body comprises a first body side wall and a second body side wall arranged opposite to each other; 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 first body side wall and connected to the door front wall; A hinge assembly, which connects the box body and the door body so that the door body can rotate relative to the box body to open or close the access opening; the hinge assembly includes: A hinge plate, comprising a connecting portion connected to the box body and close to the side wall of the first body, and an extending portion extending forward from the connecting portion; A first shaft and a second shaft, which are disposed on the extension portion; A guide part and a guide portion, which are arranged on the door body and close to the door side wall; the first shaft cooperates with the guide part, and the second shaft cooperates with the guide part; The guide portion has a guide track line; the guide track line first extends from an end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall, and then extends to a direction close to the door front wall and the door side wall; The guide portion has a guide track line; the guide track line first extends from an end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall, and then extends to a direction close to the door front wall and the door side wall; During the process of opening the door body from a closed state, the central axis of the first shaft moves relative to the guide portion along its guide trajectory, and the central axis of the second shaft moves relative to the guide portion along its guide trajectory, so that the door body moves toward a side close to the side wall of the second body and away from the access opening while rotating; The central axis of the first axis is denoted as the first central axis P, and the central axis of the second axis is denoted as the second central axis Q; In the projection of the plane where the top wall of the box body is located, the line segment where the first central axis P and the second central axis Q are located is recorded as the axis line segment PQ, and the midpoint of the axis line segment PQ is recorded as the axis midpoint I; During the whole process of the door body opening from the closed state to the eighth angle G8, the axis center point I moves relative to the door body to form an axis center point trajectory line; The door opening angle is When the instantaneous displacement of the center point of the axis relative to the trajectory line of the center point of the axis is recorded as the instantaneous midpoint displacement Among them, the instantaneous midpoint displacement Pointing to the plane where the first body side wall and the access opening are located; wherein, Any value between 0° and G8.

2. A refrigerator, characterized in that include: A box body defines a storage chamber having a take-in and put-out opening; the box body comprises a first body side wall and a second body side wall arranged opposite to each other; 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 first body side wall and connected to the door front wall; A hinge assembly, which connects the box body and the door body so that the door body can rotate relative to the box body to open or close the access opening; the hinge assembly includes: A hinge plate, comprising a connecting portion connected to the box body and close to the side wall of the first body, and an extending portion extending forward from the connecting portion; A first shaft and a second shaft, which are disposed on the extension portion; A guide part and a guide portion, which are arranged on the door body and close to the door side wall; the first shaft cooperates with the guide part, and the second shaft cooperates with the guide part; The guide portion has a guide track line; the guide track line first extends from an end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall, and then extends to a direction close to the door front wall and the door side wall; The guide portion has a guide track line; the guide track line first extends from an end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall, and then extends to a direction close to the door front wall and the door side wall; During the process of opening the door body from a closed state, the central axis of the first shaft moves relative to the guide portion along its guide trajectory toward the direction close to the door side wall, and the central axis of the second shaft moves relative to the guide portion along its guide trajectory toward the direction close to the door side wall, so that the door body moves toward the side close to the second body side wall and away from the access opening while rotating; The central axis of the first axis is denoted as the first central axis P, and the central axis of the second axis is denoted as the second central axis Q; In the projection of the plane where the top wall of the box body is located, the line segment where the first central axis P and the second central axis Q are located is recorded as the axis line segment PQ, and the midpoint of the axis line segment PQ is recorded as the axis midpoint I; During the whole process of the door body opening from the closed state to the eighth angle G8, the axis center point I moves relative to the door body to form an axis center point trajectory line; The door opening angle is When the axis center point is 1, the instantaneous displacement of the axis center point relative to the axis center point trajectory is recorded as the instantaneous midpoint position. shift Among them, the instantaneous midpoint displacement Pointing to the plane where the first body side wall and the access opening are located; wherein, Any value between 0° and G8.

3. The refrigerator according to claim 1 or 2, characterized in that: When the door is closed, the first central axis P is located at the starting guide point P0 of the guide trajectory; When the door body is opened to a fourth angle G4, the first central axis P is located at a fourth guide point P4 on the guide trajectory at the largest distance from the door front wall; When the door body is opened to an eighth angle G8, the first central axis P is located at an eighth guiding point P8 of the guiding trajectory; In the projection of the plane where the top wall of the box is located, in the direction perpendicular to the side wall of the door, the distance between the starting guide point P0 and the fourth guide point P4 is recorded as |P0P4|`, and the distance between the fourth guide point P4 and the eighth guide point P8 is recorded as |P4P8|`; wherein, |P0P4|`: |P4P8|`>1G8>90°>G4>0°.

4. The refrigerator according to claim 3, characterized in that: The angle between the straight line P0P4 where the starting guide point P0 and the fourth guide point P4 are located and the front wall of the door is recorded as β1; the angle between the straight line P4P8 where the fourth guide point P4 and the eighth guide point P8 are located and the front wall of the door is recorded as β2; β1∈(0°, 90°), β2∈(0°, 90°); tanβ2>1>tanβ1>0.

5. The refrigerator according to claim 1 or 2, characterized in that: When the door body is closed, the center point of the axis is located at the starting midpoint I0 relative to the door body; When the door body is opened to the reversing angle G', the center point of the axis is located at the reversing midpoint I' relative to the door body; When the door body is opened to an eighth angle G8, the center point of the axis is located at an eighth midpoint I8 relative to the door body; In the projection of the plane where the top wall of the box body is located, the plane where the door side wall is located is the Y1 axis, and the plane where the door front wall is located is the X1 axis; wherein the X1 axis is perpendicular to the Y1 axis and intersects at the origin O1; the direction from the door front wall to the wall surface on the door body opposite to the door front wall is the positive direction of the Y1 axis, and the direction from the door side wall to the end on the door body opposite to the door side wall is the positive direction of the X1 axis, forming a two-dimensional door body coordinate system X1O1Y1; the door body coordinate system X1O1Y1 is a two-dimensional coordinate system that is stationary relative to the door body; In the door body coordinate system X1O1Y1, the slope of the straight line between the starting midpoint I0 and the reversing midpoint I' is recorded as F' I1 The slope of the straight line between the commutation midpoint I' and the eighth midpoint I8 is recorded as F' I2 ; Among them, F` I2 >0>F` I1 , 1>F` I2 >|F` I1 |>0.

6. The refrigerator according to claim 5, characterized in that: In the direction perpendicular to the door side wall, the distance between the starting midpoint I0 and the reversing midpoint I` is recorded as |I0I`|`, and the distance between the reversing midpoint I` and the eighth midpoint I8 is recorded as |I`I8|`; wherein, |I0I`|`:|I`I8|` belong to any value from 1 to 3.

7. The refrigerator according to claim 5, characterized in that: The door body has a door rear wall arranged opposite to the door front wall; The angle bisector of the angle formed by the door front wall and the door side wall is recorded as the first angle bisector V1; the angle bisector of the angle formed by the door rear wall and the door side wall is recorded as the second angle bisector V2; During the whole process of the door body opening from the closed state to the eighth angle G8, the trajectory line of the axis center point I moving relative to the door body is recorded as the axis center point trajectory line; The intersection of the axis center point trajectory line and the first angle bisector plane V1 is recorded as the first point I J1 , and the intersection with the second angle bisector V2 is recorded as the second point I J2 ; Among them, the first point I J1 With the second point I J2 Both are close to intersection J.

8. The refrigerator according to claim 7, characterized in that: When the door body is in a closed state, the first axis and the second axis are both located on a side of the first angular bisector plane V1 away from the door side wall, and the first axis and the second axis are located on opposite sides of the second angular bisector plane V2.

9. The refrigerator according to claim 8, characterized in that: When the door is in a closed state, the distance between the central axis of the first axis and the second angle bisector V2 is denoted as λ P , the distance between the central axis of the second axis and the second angle bisector V2 is denoted as λ Q ; Among them, λ P :λ Q ≤1.

10. The refrigerator according to claim 5, characterized in that: The commutation angle G'=90°; During the process of the door body opening from the closed state to 90°, the center point I of the axis moves relative to the door body toward the side close to the door side wall and away from the door front wall; When the door body is opened from 90° to the eighth angle G8, the center point I of the axis moves relative to the door body toward the side close to the door side wall and the door front wall.

11. The refrigerator according to claim 10, characterized in that: A displacement coordinate system AOB is established in the projection of the plane where the top wall of the box is located; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access port is located, and the direction from the access port to the front wall of the door when the door is closed is taken as positive; OA is parallel to the plane where the access port is located, and the direction from the second body side wall to the first body side wall is taken as positive; the displacement coordinate system AOB is a coordinate system that is stationary relative to the box; During the whole process of the door body opening from the closed state to the eighth angle G8, the door body has a first direction displacement parallel to the front wall of the door while rotating. A second direction displacement parallel to the door side wall The first direction displacement On the A axis The displacement on The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is During the process of the door body opening from the closed state to 90°, When the door is opened to 90°, During the process of the door body opening from 90° to the eighth angle G8, Among them, 0°<G`=90°<G8.

12. The refrigerator according to claim 5, characterized in that: During the entire process of the door body opening from a closed state to the eighth angle G8, the center point I of the axis first moves toward the side close to the door side wall and away from the door front wall relative to the door body to the reversing midpoint I', and then moves toward the side close to the door side wall and the door front wall.

13. The refrigerator according to claim 12, characterized in that: During the whole process of the door body opening from the closed state to the eighth angle G8, the door body has a first direction displacement parallel to the front wall of the door while rotating. A second direction displacement parallel to the door side wall The first direction displacement The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is During the process of the door body opening from the closed state to the reversing angle G', During the process of the door body opening from the reversing angle G' to 90°, When the door is opened to 90°, During the process of the door body opening from 90° to the eighth angle G8, Among them, 0°<G`<90°<G8.

14. The refrigerator according to claim 1 or 2 or 6 or 7 or 8 or 9 or 10 or 11, characterized in that: The guide track line includes a first guide line and a second guide line connected to an end of the first guide line close to the door side wall; Wherein, the first guide line is a straight line, and extends from one end thereof away from the door side wall to a direction away from the door front wall and close to the door side wall; The second guide line is a curve, and extends from its end close to the door side wall and the end of the first guide line close to the door side wall to a side close to the door side wall and away from the door front wall, and then extends to a side close to the door side wall and the door front wall.

15. The refrigerator according to claim 14, characterized in that: The connecting point between the first guide line and the second guide line is recorded as the second guide point P2; the straight line between the second guide point P2 and the eighth guide point P8 is recorded as the straight line P2P8; The point on the second guide line with the maximum distance from the straight line P2P8 is recorded as the second inflection point P m ; where γ3 = ∠P2P m P8 is any value between 100° and 120°.

16. The refrigerator according to claim 15, characterized in that: The guide track line includes a third guide line, and the third guide line is connected to an end of the second guide line close to the door side wall; The third guide line is a straight line, and extends from one end thereof away from the door side wall toward a direction close to the door front wall and the door side wall; The first guide line is tangentially connected to the second guide line, and the second guide line is tangentially connected to the third guide line.

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