Box assembly and refrigerator

Abstract

The present disclosure relates to a cabinet assembly and a refrigerator. The cabinet assembly comprises a cabinet; and a door body comprising a first side, a second side and a third side, the first side and the third side intersecting to form a first edge extending in a third direction, the second side and the third side intersecting to form a second edge extending in the third direction; the first edge is configured to form a first trajectory line as the door body moves from a fully closed state to a fully open state, the first trajectory line not exceeding a first reference plane, the second edge is configured to form a second trajectory line as the door body moves from the fully closed state to the fully open state, the second trajectory line not exceeding a second reference plane; wherein the first reference plane is located between the cabinet and the door body, the distance between the first reference plane and the cabinet is 12%T-25%T, and the second reference plane is located outside the cabinet and has a distance less than 0.01%T from the cabinet. In the case that the distance between the cabinet and the surrounding environment such as a wall is close to zero, the door body can be better opened.

Description

Technical Field

[0001] This disclosure relates to the field of refrigeration technology, and in particular to a cabinet assembly and a refrigerator. Background Technology

[0002] The door is a crucial component of a refrigerator system, primarily used for opening and closing the refrigeration compartment, storing food, and housing touch and display devices. Normally, the door is fixed to the refrigerator body by hinges, and the door can rotate around the hinge axis. In some cases, the refrigerator is placed in a corner, requiring a certain distance between the refrigerator and the wall to ensure the door can open to an angle greater than 90°. To save space, built-in refrigerators are a major future trend. However, for built-in refrigerators, traditional hinge mechanisms are insufficient for effectively opening the door. Summary of the Invention

[0003] Some embodiments of this disclosure provide a cabinet assembly and a refrigerator that enable the door to open well when the distance between the cabinet and the surrounding environment, such as walls, is close to zero.

[0004] In one aspect of this disclosure, a housing assembly is provided, comprising:

[0005] Box; and

[0006] A door, rotatably connected to the housing, includes a first side, a second side, and a third side. The first side and the second side are opposite to each other and adjacent to the housing. The first side and the third side intersect to form a first edge extending in a third direction. The second side and the third side intersect to form a second edge extending in a third direction. The first edge is configured to move with the door from a fully closed state to a fully open state, forming a first trajectory line. The first trajectory line does not exceed a first reference plane. The second edge is configured to move with the door from a fully closed state to a fully open state, forming a second trajectory line. Two trajectory lines, the second trajectory line not exceeding a second reference plane; wherein, the first reference plane is located between the box body and the door body, parallel to the first direction, and the distance between the first reference plane and the box body is 12%T to 25%T, the second reference plane is located outside the box body, parallel to the second direction, and the distance between the second reference plane and the box body is less than 0.01%T, where T is the distance between the first edge and the second edge, the first direction is perpendicular to the second direction, and both the first direction and the second direction are perpendicular to the third direction, the third direction being the height direction of the box body.

[0007] In some embodiments, the position of the first edge on the first trajectory line when the door is fully closed is point A1, and the distance between point A1 and the box is 16%T to 25%T.

[0008] In some embodiments, the straight-line distance nA5 between point A5 and point n is 27%T to 56%T, wherein point A5 is the position of the first edge on the first trajectory line when the door is fully open, and point n is the intersection of the second side when the door is fully closed and the first side when the door is fully open.

[0009] In some embodiments, the straight-line distance mB1 between point m and point B1 is less than 0.07%T, wherein point B1 is the position of the second edge on the second trajectory line when the door is fully closed, and point m is the intersection of the second side when the door is fully closed and the second side when the door is fully open.

[0010] In some embodiments, the first trajectory line is tangent to the first reference plane, the tangency point is point A2, and the first edge is configured to be located at point A2 when the door opening angle is 8° to 20°.

[0011] In some embodiments, the first edge is configured to be located at point A3 on the first trajectory line when the door opening angle is 20° to 40°, wherein point A3 is the intersection of the first trajectory line and the first side of the door in the fully closed state.

[0012] In some embodiments, the first edge is configured to be located at point A4 on the first trajectory line when the door is opened at an angle of 90°, the straight-line distance KA4 between point A4 and point K is greater than the straight-line distance nA5, and point K is the intersection of the second side of the door in the fully closed state and the first side of the door when the door is opened at an angle of 90°.

[0013] In some embodiments, the straight-line distance FB1 between point B1 and point F is greater than the straight-line distance mB1, wherein point F is the intersection of the second side of the door when it is fully closed and the second side of the door when it is open at an angle of 90°.

[0014] In some embodiments, the projection length of the line connecting points A3 and A4 in the second direction accounts for 60% to 65% of the projection length of the line connecting points A3 and A5 in the second direction. Here, point A4 is the position of the first edge on the first trajectory line when the door is open at an angle of 90°, and point A5 is the position of the first edge on the first trajectory line when the door is fully open.

[0015] In some embodiments, the distance between the first trajectory line and the second reference plane increases as the door opening angle increases, and the distance between the first trajectory line and the box body first decreases and then increases as the door opening angle increases.

[0016] In some embodiments, the first trajectory line includes a first arc segment, a second arc segment, and a third arc segment connected sequentially from the door being in a fully closed state to a fully open state. The first arc segment is constructed as a quadratic function curve convex toward the box body; the second arc segment and the third arc segment are constructed as circular arc segments.

[0017] In some embodiments, the first arc segment is the arc segment from point A1 to point A3, the second arc segment is the arc segment from point A3 to point A4, and the third arc segment is the arc segment from point A4 to point A5; wherein,

[0018] Point A1 is the position of the first edge on the first trajectory line when the door is fully closed.

[0019] Point A3 is the position of the first edge on the first trajectory line when the door opening angle is 20° to 40°.

[0020] Point A4 is the position of the first edge on the first trajectory line when the door is opened at an angle of 90°.

[0021] Point A5 is the position of the first edge on the first trajectory line when the door is fully open.

[0022] In some embodiments, the curvature of the second arc segment is greater than the curvature of the third arc segment, and the arc length of the second arc segment is greater than the arc length of the third arc segment.

[0023] In some embodiments, the housing assembly further includes a shaft assembly and a track groove assembly, the shaft assembly being disposed in one of the door and the housing, and the track groove assembly being disposed in the other of the door and the housing, the shaft assembly including a first shaft and a second shaft, the track groove assembly including a first groove and a second groove, the first shaft being configured to move relative to the first groove within the first groove as the door is opened and closed, and the second shaft being configured to move relative to the second groove within the second groove as the door is opened and closed.

[0024] In some embodiments, the area where the shaft assembly is located is within the quadrilateral nA5B5m formed by connecting points n, A5, B5, and m in sequence; wherein, point n is the intersection of the second side of the door in the fully closed state and the first side of the door in the fully open state; point A5 is the position of the first edge on the first trajectory line in the fully open state; point B5 is the position of the second edge on the second trajectory line in the fully open state; and point m is the intersection of the second side of the door in the fully closed state and the second side of the door in the fully open state.

[0025] In some embodiments, the area where the shaft assembly is located is within the quadrilateral cdgh formed by connecting points c, d, g, and h in sequence.

[0026] The line cd connecting point c and point d is parallel to the line nm connecting point n and point m, and the line cd is offset by 7t to 9.5t relative to the line nm towards the inside of quadrilateral nA5B5m.

[0027] The line gd connecting point d and point g is parallel to the line mB5 connecting point m and point B5, and the line gd is offset by 4t to 6.5t relative to the line mB5 towards the inside of quadrilateral nA5B5m.

[0028] The line hg connecting point g and point h is parallel to the line A5B5 connecting point A5 and point B5, and the line hg is offset by 2t to 3t relative to the line A5B5 towards the inside of quadrilateral nA5B5m.

[0029] The line ch connecting point c and point h is parallel to the line nA5 connecting point A5 and point n, and the line ch is offset by 2t to 3t relative to the line nA5 towards the inside of quadrilateral nA5B5m.

[0030] Where 0.9≤t≤1.1, T=50t.

[0031] In some embodiments, the axis of the first axis is located in the triangle Q1Q6Q7 region formed by connecting points Q1, Q6, and Q7 in sequence, and the axis of the second axis is located in the quadrilateral Q2Q3Q5Q4 region formed by connecting points Q2, Q3, Q5, and Q4 in sequence.

[0032] Wherein, point Q1 is the center of the first circle, which is a circle with radius R1 that is tangent to both line cd and line hg inside quadrilateral cdgh.

[0033] Point Q2 lies on the arc of the eighth circle formed with point Q1 as the center and S as the radius, and point Q2 is the center of the second circle, which is a circle with radius R2 that is tangent to the connecting line hg inside the quadrilateral cdgh.

[0034] The point Q3 is on the arc of the eighth circle formed with point Q1 as the center and S as the radius, and the point Q3 is the center of the third circle. The third circle is a circle with radius R2 that is inside the quadrilateral cdgh and is tangent to the connecting line cd.

[0035] The point Q4 is the center of the fourth circle, which is a circle with radius R2 that is tangent to both the line hg and the line gd inside the quadrilateral cdgh.

[0036] Q5 is the center of the fifth circle, which is a circle with radius R2 that is tangent to both line cd and line gd inside quadrilateral cdgh.

[0037] Point Q6 lies on the arc of the ninth circle formed with point Q4 as the center and radius S, and point Q6 is the center of the sixth circle, which is a circle with radius R1 that is tangent to the line hg inside quadrilateral cdgh.

[0038] The point Q7 is on the arc of the tenth circle formed with the point Q5 as the center and S as the radius, and the point Q7 is the center of the seventh circle. The seventh circle is a circle with radius R1 that is tangent to the connecting line cd inside the quadrilateral cdgh.

[0039] R1 is the radius of the first axis, R2 is the radius of the second axis, and S is the distance between the center of the first axis and the center of the second axis. The selection of S is based on the fact that the first groove and the second groove do not intersect.

[0040] In some embodiments, the coordinates of any point A'(x1',y1') on the first slot in the xy rectangular coordinate system satisfy the following relationship:

[0041]

[0042] The xy rectangular coordinate system is a rectangular coordinate system established with the intersection of the second and third sides of the door in the fully closed state as the origin, the first direction as the positive x-axis, and the second direction as the positive y-axis.

[0043] θ is the opening angle of the door;

[0044] ax is the x-coordinate of the axis of the first axis in the xy rectangular coordinate system;

[0045] ay is the y-coordinate of the axis of the first axis in the xy rectangular coordinate system;

[0046] x1 is the x-coordinate of any point on the first trajectory line in the xy rectangular coordinate system, and y1 is the y-coordinate of any point on the first trajectory line in the xy rectangular coordinate system.

[0047] x2 is the x-coordinate of any point on the second trajectory line in the xy rectangular coordinate system, and y2 is the y-coordinate of any point on the second trajectory line in the xy rectangular coordinate system.

[0048] In some embodiments, the coordinates of any point B'(x2',y2') on the second groove in the xy rectangular coordinate system satisfy the following relationship:

[0049]

[0050] The xy rectangular coordinate system is a rectangular coordinate system established with the intersection of the second and third sides of the door in the fully closed state as the origin, the first direction as the positive x-axis, and the second direction as the positive y-axis.

[0051] θ is the opening angle of the door;

[0052] bx is the x-coordinate of the axis of the second axis in the xy rectangular coordinate system;

[0053] by is the y-coordinate of the axis of the second axis in the xy rectangular coordinate system;

[0054] x1 is the x-coordinate of any point on the first trajectory line in the xy rectangular coordinate system, and y1 is the y-coordinate of any point on the first trajectory line in the xy rectangular coordinate system.

[0055] x2 is the x-coordinate of any point on the second trajectory line in the xy rectangular coordinate system, and y2 is the y-coordinate of any point on the second trajectory line in the xy rectangular coordinate system.

[0056] In one aspect of this disclosure, a refrigerator is provided, including the aforementioned cabinet assembly.

[0057] Based on the above technical solution, this disclosure has at least the following beneficial effects:

[0058] In some embodiments, the distance between the first reference plane and the cabinet is set based on the thickness of the door, and the distance between the second reference plane and the cabinet is also set. This allows for flexible adjustment of the positions of the first and second reference planes according to different door specifications. This enables the door to move towards the cabinet first and then open away from it when the distance between the cabinet and the surrounding walls or cabinets is close to zero, thus achieving better door opening and preventing interference between the door and the walls or cabinets during opening and closing. It also prevents excessive compression and wear on the seals installed on the door, thereby improving the service life of the seals. Attached Figure Description

[0059] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this disclosure, illustrate exemplary embodiments of the present disclosure and are used to explain the disclosure, but do not constitute an undue limitation of the disclosure. In the drawings:

[0060] Figure 1 This is a schematic diagram of a housing assembly provided according to some embodiments of the present disclosure;

[0061] Figure 2 This is a schematic diagram of a rotating connection portion provided according to some embodiments of the present disclosure;

[0062] Figure 3 This is a schematic diagram of a shaft groove assembly provided according to some embodiments of the present disclosure;

[0063] Figure 4 This is a simplified schematic diagram of the rotating connection part of a door in a fully closed state according to some embodiments of this disclosure;

[0064] Figure 5 This is a simplified schematic diagram of a door in a first-angle-open state according to some embodiments of the present disclosure;

[0065] Figure 6 This is a simplified schematic diagram of a door in a second-angle open state according to some embodiments of the present disclosure;

[0066] Figure 7 This is a simplified schematic diagram of a door in a third-angle open state according to some embodiments of the present disclosure;

[0067] Figure 8 This is a simplified schematic diagram of a door in a fourth-angle open state according to some embodiments of the present disclosure;

[0068] Figure 9 This is a schematic diagram of the position regions of the first and second axes provided according to some embodiments of the present disclosure;

[0069] Figure 10The following is a simplified schematic diagram of the shaft and track groove provided according to some embodiments of the present disclosure in different coordinate systems.

[0070] The labels in the attached diagram are explained as follows:

[0071] 10-Box body; 101-Placement opening side; 102-Outer side; 20-Door body; 201-First side; 202-Second side; 203-Third side; 204-First trajectory line; 205-Second trajectory line; 21-First edge; 22-Second edge; 30a-Hinge; 30-Shaft assembly; 31-First shaft; 32-Second shaft; 40a-Slot plate; 40-Trajectory slot group; 41-First slot; 42-Second slot; 50-Wall body; 61-First circle; 62-Second circle; 63-Third circle; 64-Fourth circle; 65-Fifth circle; 66-Sixth circle; 67-Seventh circle; 68-Eighth circle; 69-Ninth circle; 70-Tenth circle.

[0072] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0073] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0074] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0075] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0076] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0077] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0078] Figure 1 This is a structural schematic diagram of some embodiments of the housing assembly according to this disclosure. (See reference...) Figure 1 In some embodiments, the enclosure assembly includes an enclosure 10 and a door 20.

[0079] The box body 10 has an opening for taking out and putting in, and the door 20 is located at the opening for taking out and putting in.

[0080] The door 20 is rotatably connected to the box 10.

[0081] The rotating connection side between the door 20 and the box 10 includes a first edge 21 and a second edge 22 extending along the third direction Z.

[0082] The third direction Z is parallel to the height direction of the housing 10 and the door 20. The third direction Z is perpendicular to the first direction X, and the third direction Z is perpendicular to the second direction Y. The first direction X is perpendicular to the second direction Y. The second direction Y is parallel to the depth direction of the housing 10 and the thickness direction of the door 20. The first direction X is parallel to the width direction of the housing 10 and the door 20.

[0083] exist Figure 1 In the embodiment shown, the housing 10 is provided with two sets of doors 20 spaced apart along the third direction Z. Each set of doors 20 includes two doors 20 arranged side by side along the first direction X.

[0084] refer to Figure 2In some embodiments, the door 20 and the housing 10 are rotatably connected by a hinge structure. The hinge structure includes a hinge 30a and a slotted plate 40a, with the hinge 30a located on one of the door 20 and the housing 10, and the slotted plate 40a located on the other of the door 20 and the housing 10.

[0085] exist Figure 2 In the embodiment shown, the hinge 30a is provided on one side of the housing 10 in the first direction X and is located at the top of the housing 10, and the slot plate 40a is provided on one side of the door 20 in the first direction X and is located at the top of the door 20.

[0086] refer to Figure 3 In some embodiments, the hinge 30a includes a shaft assembly 30, which includes a first shaft 31 and a second shaft 32. A track groove group 40 is provided on the slot plate 40a, which includes a first groove 41 and a second groove 42. The first shaft 31 is configured to move relative to the first groove 41 within the first groove as the door 20 is opened and closed, and the second shaft 32 is configured to move relative to the second groove 42 within the second groove as the door 20 is opened and closed.

[0087] exist Figure 3 In the illustrated embodiment, a first shaft 31 and a second shaft 32 are disposed in the housing 10, and a first groove 41 and a second groove 42 are disposed in the door 20. During the opening of the door 20 relative to the housing 10, the first shaft 31 and the second shaft 32 remain stationary, while the first groove 41 and the second groove 42 move with the door 20. The first shaft 31 moves relative to the first groove 41 within the first groove 41. The second shaft 32 moves relative to the second groove 42 within the second groove 42.

[0088] refer to Figure 4 The housing 10 is provided with an access port, the side where the access port is located is called the access port side 101, which is also the front side of the housing 10. The access port side 101 extends in a first direction X and a third direction Z. The housing 10 also includes an outer side 102, which is connected to the access port side 101 and is the side adjacent to the surrounding installation environment. The outer side 102 extends in a second direction Y and a third direction Z.

[0089] The door body 20 includes a first side 201, a second side 202, and a third side 203. The first side 201 and the second side 202 are disposed opposite each other, and the first side 201 is adjacent to the housing 10 relative to the second side 202. The third side 203 is close to the part where the door body 20 is rotatably connected to the housing 10.

[0090] The first side 201 is the back of the door 20, adjacent to the access port 101 of the housing 10. The first side 201 extends in the first direction X and the third direction Z. The second side 202 is the front of the door 20, extending in the first direction X and the third direction Z. The third side 203 is the side of the door 20 adjacent to the surrounding installation environment. The third side 203 extends in the second direction Y and the third direction Z.

[0091] The surrounding installation environment here may include walls 50 and cabinets, etc.

[0092] The first side 201 and the third side 203 intersect to form a first edge 21 extending along the third direction Z.

[0093] The second side 202 intersects with the third side 203 to form a second edge 22 extending in the third direction Z. The second edge 22 is away from the housing 10 relative to the first edge 21.

[0094] Figure 4 This is a partial top view of the box body 10 and the door body 20. The first edge 21 is... Figure 4 In the top view shown, the second edge 22 coincides with point A1. Figure 4 It coincides with point B1 in the top view shown.

[0095] The first edge 21 is configured to move with the door 20 from a fully closed state to a fully open state, forming a first trajectory line 204, which does not exceed the first reference plane F1 in the second direction Y.

[0096] The second edge 22 is configured to move with the door 20 from a fully closed state to a fully open state, forming a second trajectory line 205, which does not exceed the second reference plane F2 in the first direction X.

[0097] The first reference plane F1 is located between the box body 10 and the door body 20. The first reference plane F1 is parallel to the first direction X, and the distance between the first reference plane F1 and the box body 10 is 12%T to 25%T.

[0098] The second reference plane F2 is located on the outside of the housing 10, adjacent to the side where the housing 10 is rotatably connected to the door 20. The second reference plane F2 is parallel to the second direction Y, and the distance between the second reference plane F2 and the housing 10 is less than 0.01%T.

[0099] Where T is the distance between the first edge 21 and the second edge 22.

[0100] In some embodiments, T is equal to the thickness of the door body 20. Optionally, T = 50t (mm), where 0.9 ≤ t ≤ 1.1.

[0101] The first direction X is perpendicular to the second direction Y. Both the first direction X and the second direction Y are perpendicular to the third direction Z, which is the height direction of the box 10.

[0102] Since a seal is required on the first side 201 of the door 20, a preset distance is needed between the first side 201 of the door 20 and the access side 101 of the housing 10 to install the seal and prevent cold leakage from the housing 10. To save installation space, the distance between the outer side of the housing 10 and the surrounding environment is very small, close to zero, to achieve zero-embedded installation of the housing 10. Therefore, when the door 20 is initially opened, the angled area formed by the first side 201 and the third side 203 moves towards the housing 10. At this time, the seal on the door 20 is squeezed towards the housing 10. If the amount of compression exceeds its own compensation, problems such as edge curling, folding, or damage to the seal due to mechanical stress, wear, etc., may occur.

[0103] Based on this, in some embodiments, the first edge 21 moves with the door 20 from a fully closed state to a fully open state to form a first trajectory line 204. The first trajectory line 204 will not exceed the first reference plane F1 in the second direction Y. The distance between the first reference plane F1 and the box 10 is 12%T to 25%T. The distance between the first reference plane F1 and the box 10 is set based on the thickness T of the door 20. The position of the first reference plane F1 can be flexibly adjusted according to the different specifications of the door 20. This allows the door 20 to move towards the box 10 first and then open away from the box 10 when the distance between the box 10 and the surrounding wall 50 or cabinet is close to zero, thus achieving better opening of the door 20 and preventing interference between the door 20 and the wall 50 or cabinet during opening and closing. It also prevents excessive compression and wear on the seals installed on the door 20, thereby improving the service life of the seals. Furthermore, the second trajectory line 205 formed by the movement of the second edge 22 with the door 20 from the fully closed state to the fully open state will not exceed the second reference plane F2 in the first direction X. The distance between the second reference plane F2 and the cabinet 10 is less than 0.01%T. The distance between the second reference plane F2 and the cabinet 10 is set based on the thickness T of the door 20. The position of the second reference plane F2 can be flexibly adjusted according to the different specifications of the door 20, so that the second edge 22 will not exceed the outer side 102 of the cabinet 10 during the opening and closing process of the door 20, preventing the second edge 22 from interfering with the wall 50 or cabinet, and allowing the door 20 to open better when the distance between it and the wall 50 or cabinet is close to zero.

[0104] refer to Figure 4In some embodiments, the position of the first edge 21 on the first trajectory line 204 when the door 20 is fully closed is point A1, and the distance between point A1 and the box 10 is 16%T to 25%T. Point A1 is located on the extension surface of the outer side 102 of the box 10 in the second direction Y.

[0105] In the above embodiment, the distance between point A1 and box 10 is set based on the thickness T of door 20, which can flexibly adjust the distance between point A1 and box 10 according to different specifications of door 20, and is applicable to box components of different specifications. The distance between point A1 and the cabinet 10 is set to 16%T to 25%T to define the initial position of the first edge 21 when the door 20 is fully closed. This range determines the closed position of the door 20, facilitating the selection and setting of the hinge structure between the door 20 and the cabinet 10, achieving a better rotational connection between them, and allowing space to be reserved between the door 20 and the cabinet 10 for installing a seal. This prevents excessive pressure on the seal during opening and closing. It also determines the space utilization of the cabinet 10, as the starting position of the door 20 determines its movement trajectory throughout the opening and closing process, thus affecting the usability of the internal space and the layout of the external space of the cabinet 10. Setting the distance between point A1 and the cabinet 10 to 16%T to 25%T ensures that the door 20 does not occupy too much external space during opening and closing, making the cabinet assembly structure more compact and preventing the door 20 from interfering with the wall 50 or cabinet, thus achieving better opening and closing.

[0106] refer to Figure 5 The door 20 opens to a first angle relative to the housing 10. The first angle can optionally range from 8° to 20°.

[0107] refer to Figure 6 The door 20 opens to a second angle relative to the housing 10. The second angle is greater than the first angle but less than 90°.

[0108] refer to Figure 7 The door 20 opens to a third angle relative to the housing 10. The third angle is 90°.

[0109] refer to Figure 8 The door 20 opens to a fourth angle relative to the housing 10. This fourth angle is the angle at which the door 20 is fully open. The fourth angle is greater than 90° and less than or equal to 110°. Optionally, the fourth angle is 110°.

[0110] refer to Figure 8When the door 20 is fully open, the straight-line distance nA5 between point A5 and point n is 27%T to 56%T. Point A5 is the position of the first edge 21 on the first trajectory line 204 when the door 20 is fully open, and point n is the intersection of the second side 202 when the door 20 is fully closed and the first side 201 when the door 20 is fully open.

[0111] In the above embodiment, since a larger nA5 value is more conducive to the installation of the door 20, it also causes the door 20 to move further toward the box 10 when it moves, resulting in more space being occupied inside the box 10. Therefore, limiting the straight-line distance nA5 between point A5 and point n to 27% T to 56% T can determine the end point of the door 20 opening, so that the opening angle of the door 20 can be greater than 90°, without occupying too much space inside the box 10, and without interfering with the wall 50 or cabinet.

[0112] In some embodiments, the straight-line distance mB1 between point m and point B1 is less than 0.07%T, where point B1 is the position of the second edge 22 on the second trajectory line 205 when the door 20 is fully closed, and point m is the intersection of the second side 202 when the door 20 is fully closed and the second side 202 when the door 20 is fully open.

[0113] In the above embodiment, the straight-line distance mB1 between point m and point B1 is less than 0.07%T, which can reserve a safe distance for the second side 202 of the door 20, and provide a relatively large allowable tolerance range for the door 20, preventing the door 20 from colliding with the wall 50 or cabinet due to manufacturing errors of the door 20.

[0114] refer to Figure 5 In some embodiments, the first trajectory line 204 is tangent to the first reference plane F1 at point A2, and the first edge 21 is configured to be located at point A2 when the door 20 is opened at an angle of 8° to 20°.

[0115] Since the distance between the first side 201 and the take-out port side 101 is set to 16%T~25%T, this distance can realize the setting of the seal. However, under normal circumstances, the thickness of the seal itself will be smaller than this distance, which is used as seal compensation. That is, when the magnetic strip on the seal is attracted with the box 10, it has a preset airbag compression amount.

[0116] Based on this, when the door is initially opened, the angled area formed by the first side 201 and the third side 203 moves towards the box 10. At this time, the seal on the door 20 will be squeezed towards the box 10. If the amount of compression of the seal exceeds its own seal compensation amount, there is a risk that the seal will be over-compressed. Therefore, the position of the second trajectory line 205 closest to the first reference plane F1 is the position that is tangent to the first reference plane F1, and the tangency point is point A2. On the other hand, considering the presence of the door closer in practical applications (door closer: a hook-like part installed on one side of the hinge, whose contact part with the hinge is designed with appropriate interference to allow the door to automatically close to the position when the door reaches a certain angle), the resistance of the door closer needs to be overcome during the opening of the door 20. Usually, the angle of action between the door closer and the door 20 is between 6° and 11°. Therefore, point A2 is set at a position that reduces the opening force after the door 20 disengages from the door closer (i.e., at a position where the opening angle of the door 20 is greater than 8°). In order to leave sufficient displacement margin for the subsequent movement of the door 20, ensure a smooth and easy opening feel, and meet the requirement that the curvature of the edge trajectory curve be as smooth as possible, the position of point A2 does not exceed 20° of the opening angle of the door 20. Therefore, the first edge 21 is configured to be located at point A2 when the opening angle of the door body 20 is 8° to 20°. This is beneficial for the setting of the seal and improves the service life of the seal. It is also beneficial for the door closer to automatically close the door body 20 when the door is closed. In addition, it can provide displacement margin for the movement of the door body 20 after the opening angle is greater than 8°, so that the door can be opened smoothly and easily.

[0117] refer to Figure 6 In some embodiments, the first edge 21 is configured to be located at point A3 on the first trajectory line 204 when the door 20 is opened at an angle of 20° to 40°. Point A3 is the intersection of the first trajectory line 204 and the first side surface 201 of the door 20 in the fully closed state.

[0118] In the above embodiment, after the first edge 21 moves to point A2 on the first trajectory line 204 with the door body 20, in order to ensure that the movement of the door body 20 is smooth and stable, the curvature of the first trajectory line 204 should meet the requirement of uniformity and no abrupt changes as much as possible. Therefore, after the door body 20 leaves point A2, it should move smoothly and slowly until the seal leaves the box. If the distance between point A3 corresponding to the position where the seal leaves the box and point A2 is too small, the curvature of the curve segment A2A3 from point A2 to point A3 will abruptly increase; if the distance between point A3 corresponding to the position where the seal leaves the box and point A2 is too small, the curvature of the curve segment A2A3 from point A2 to point A3 will abruptly increase. If the distance is too large, the curvature of the A3A5 arc segment from point A3 to point A5 will suddenly increase, and the increased curvature of the A3A5 arc segment will cause the normal acceleration of the door to increase, resulting in the door 20 moving poorly. Therefore, the first edge 21 is configured such that when the opening angle of the door 20 is 20° to 40°, A3 falls on the first side 201 of the door 20 in the fully closed state, so that the door 20 can move smoothly, stably and smoothly during the opening process of the A2A3 arc segment along the first trajectory line 204 and during the opening process of the A3A5 arc segment.

[0119] refer to Figure 7 In some embodiments, the first edge 21 is configured to be located at point A4 on the first trajectory line 204 when the door 20 is opened at an angle of 90°. The straight-line distance KA4 between point A4 and point K is greater than the straight-line distance nA5. Point K is the intersection of the second side 202 of the door 20 when it is fully closed and the first side 201 of the door 20 when it is opened at an angle of 90°.

[0120] When the opening angle of the door 20 is 90°, on the one hand, the second side 202 should be as close as possible to the extension surface of the outer side 102 of the cabinet 10 in the second direction Y, thereby reducing the space required for the internal moving parts (such as drawers) of the cabinet 10 to move outward and improving the space utilization of the cabinet assembly. On the other hand, it is also necessary to ensure that when the opening angle of the door 20 is greater than 90°, there is a sufficient gap between the second side 202 and the side of the wall 50.

[0121] Based on this, the first edge 21 is configured to be located at point A4 on the first trajectory line 204 when the door 20 is opened at an angle of 90°. The straight-line distance KA4 between point A4 and point K is greater than the straight-line distance nA5. This can reduce the space occupied by the moving parts inside the housing 10 when they move outward, improve the space utilization of the housing assembly, and also ensure that when the door 20 is opened at an angle greater than 90°, the second side 202 has sufficient clearance from the side of the wall 50.

[0122] refer to Figure 7In some embodiments, the straight-line distance FB1 between point B1 and point F is greater than the straight-line distance mB1, where point F is the intersection of the second side 202 of the door 20 when it is fully closed and the second side 202 when the door 20 is opened at an angle of 90°.

[0123] In the above embodiment, the intersection point of the second side 202 of the door 20 when the opening angle is 90° and the second side 202 of the door 20 in the fully closed state is point F, and the distance between point F and the third side 203 of the door 20 in the fully closed state is the straight-line distance FB1.

[0124] To improve refrigerator space utilization, the straight-line distance FB1 should be as small as possible. This means the smaller the distance between the second side 202 of the door 20 when the opening angle is 90° and the extension surface of the outer side 102 of the cabinet 10 in the second direction Y, the less space the door 20 occupies. Furthermore, when the door 20 opens at an angle greater than 90° (e.g., 90°–110°), sufficient clearance needs to be provided between the second side 202 and the side of the wall 50 to prevent collision. Therefore, FB1 should be greater than mB1. Thus, the straight-line distance FB1 between points B1 and F is greater than the straight-line distance mB1, which minimizes the space occupied by the door 20 and prevents collisions with the wall 50 or cabinet when the opening angle is greater than 90°.

[0125] In some embodiments, the projection length of the line connecting points A3 and A4 in the second direction Y accounts for 60% to 65% of the projection length of the line connecting points A3 and A5 in the second direction Y. Here, point A4 is the position of the first edge 21 on the first trajectory line 204 when the door 20 is opened at an angle of 90°, and point A5 is the position of the first edge 21 on the first trajectory line 204 when the door 20 is fully open.

[0126] Since point A3 is the point where the seal leaves the housing, the movement of the door 20 on the arc segment from point A3 to point A5 can be regarded as its entire movement in the second direction Y. Setting the projection length of the line connecting points A3 and A4 in the second direction Y to be 60% to 65% of the projection length of the line connecting points A3 and A5 in the second direction Y can make the arc segment between points A3 and A4 as smooth as possible, prevent abrupt changes, and make the opening and closing of the door 20 smoother.

[0127] In some embodiments, the distance between the first trajectory line 204 and the second reference plane F2 increases as the opening angle of the door 20 increases, and the distance between the first trajectory line 204 and the box 10 first decreases and then increases as the opening angle of the door 20 increases.

[0128] In the above embodiment, by setting the shape of the first trajectory line 204, the movement position of the door 20 is controlled, making the opening and closing of the door 20 smoother and preventing the door 20 from interfering with the wall 50 or cabinet during the opening and closing process, thereby achieving zero-embedded installation of the cabinet 10.

[0129] In some embodiments, the first trajectory line 204 includes a first arc segment, a second arc segment, and a third arc segment connected sequentially from the door 20 in a fully closed state to a fully open state. The first arc segment is configured as a quadratic function curve convex toward the box 10; the second and third arc segments are configured as circular arc segments.

[0130] In the above embodiment, since the initial opening of the door 20 is set, the angled area formed by the first side 201 and the third side 203 first moves towards the box 10 and then moves away from the box 10. Therefore, the first arc segment is constructed as a quadratic function curve protruding towards the box 10 to plan the movement route of the door 20. The shape of the quadratic function curve can make the opening and closing action of the door 20 smoother and more stable. The second arc segment and the third arc segment are constructed as circular arc segments. As the door 20 continues to open, the circular arc segments can make the door 20 as close to the wall as possible in a limited space, increase the maximum opening angle of the door 20, and make the door 20 move smoothly, reducing the impact between the door 20 and the edge of the box 20.

[0131] In some embodiments, the first arc segment is the arc segment from point A1 to point A3, the second arc segment is the arc segment from point A3 to point A4, and the third arc segment is the arc segment from point A4 to point A5; wherein,

[0132] Point A1 is the position of the first edge 21 on the first trajectory line 204 when the door 20 is fully closed;

[0133] Point A3 is the position of the first edge 21 on the first trajectory line 204 when the opening angle of the door 20 is 20° to 40°.

[0134] Point A4 is the position of the first edge 21 on the first trajectory line 204 when the door 20 is opened at an angle of 90°.

[0135] Point A5 is located on the first trajectory line 204 when the first edge 21 is fully open.

[0136] In the above embodiment, during the process of the door 20 opening from a fully closed state to 20° to 40°, the first edge 21 runs along the first arc segment from point A1 to point A3, so that the door 20 first moves slowly towards the box 10 from the fully closed state, and then moves smoothly and slowly until the door 20 carries the sealing element away from the box 10, improving the stability of the door 20 in the initial opening state. From the opening of 20° to 40° to the opening of 90°, the first edge 21 runs along the second arc segment. The second arc segment is a circular arc segment, which can smoothly transition with the first arc segment and prevent abrupt changes. From the opening of 90° to the opening of the maximum angle, the first edge 21 runs along the third arc segment. The third arc segment is also a circular arc segment, which can bring the door 20 as close to the wall 50 as possible and increase the maximum opening angle of the door 20.

[0137] In some embodiments, the curvature of the second arc segment is greater than the curvature of the third arc segment, and the arc length of the second arc segment is greater than the arc length of the third arc segment.

[0138] In the above embodiment, as the opening angle of the door 20 increases, the curvature of the third arc segment decreases relative to the curvature of the second arc segment, and the arc length of the third arc segment decreases relative to the arc length of the second arc segment. This allows the door 20 to move closer to a straight line as it approaches full opening, reducing the outward projection distance of the door 20 and making the movement of the door 20 smoother. This is more conducive to the door 20 smoothly approaching the wall 50 or cabinet, reducing collisions.

[0139] In some embodiments, the arc segment corresponding to the second arc segment is a minor arc. The arc segment corresponding to the third arc segment is a minor arc.

[0140] In this embodiment of the disclosure, within a maximum opening angle of 110° for the door body 20, the box assembly can achieve embedded door opening and closing.

[0141] According to the description of the above embodiments, the shape of the first trajectory line 204 of the first edge 21 can be determined. Since the distance between the second edge 22 and the first edge 21 is always T, based on this correspondence, the shape of the second trajectory line 205 of the second edge 22 can be determined when the shape of the first trajectory line 204 of the first edge 21 is determined.

[0142] The distance T between the second edge 22 and the first edge 21 satisfies the following relationship:

[0143]

[0144] Given the coordinates u(x1, y1) of any point u on the first trajectory line 204, the coordinates v(x2, y2) of any point v on the second trajectory line 205 can be obtained according to the above relationship.

[0145]

[0146] Therefore, given the shape of the first trajectory line 204 of the first edge 21, the shape of the second trajectory line 205 of the second edge 22 can be determined.

[0147] In some embodiments, the housing assembly further includes a shaft assembly 30 and a track groove group 40. The shaft assembly 30 is disposed in one of the door body 20 and the housing 10, and the track groove group 40 is disposed in the other of the door body 20 and the housing 10. The shaft assembly 30 includes a first shaft 31 and a second shaft 32, and the track groove group 40 includes a first groove 41 and a second groove 42. The first shaft 31 is configured to move relative to the first groove 41 within the first groove 41 as the door body 20 is opened and closed, and the second shaft 32 is configured to move relative to the second groove 42 within the second groove 42 as the door body 20 is opened and closed.

[0148] In the above embodiments, the movement of the door is restricted by the dual shafts set on the cabinet 10 and the dual track grooves set on the door 20, so as to realize the door's embedded opening and closing. This can greatly reduce the gaps that need to be reserved on both sides of the cabinet, achieve zero-gap embedding, and provide technical support for the research and development of embedded refrigerators.

[0149] refer to Figure 9 In some embodiments, the setting area of ​​the shaft assembly 30 is within the quadrilateral nA5B5m formed by connecting points n, A5, B5, and m in sequence.

[0150] Point n is the intersection of the second side 202 of the door 20 when it is fully closed and the first side 201 of the door 20 when it is fully open.

[0151] Point A5 is located on the first trajectory line 204 when the first edge 21 is fully open.

[0152] Point B5 is located on the second trajectory line 205 when the second edge 22 is fully open.

[0153] Point m is the intersection of the second side 202 of the door 20 when it is fully closed and the second side 202 of the door 20 when it is fully open.

[0154] In the above embodiment, since the first shaft 31 and the second shaft 32 cooperate with the first groove 41 and the second groove 42 to realize the movement of the door 20 relative to the box 10, no matter how the door 20 moves, the first shaft 31 and the second shaft 32 can never leave the door 20. Therefore, the setting area of ​​the shaft assembly 30 is limited to the quadrilateral nA5B5m formed by connecting points n, A5, B5 and m in sequence, which provides a reference for the setting position of the shaft assembly 30, so that the first shaft 31 and the second shaft 32 never leave the door 20 during the opening and closing process, so that the door 20 can move relative to the box 10 along the planned path.

[0155] In some embodiments, the setting area of ​​the shaft assembly 30 is within the quadrilateral cdgh formed by connecting points c, d, g, and h in sequence.

[0156] Among them, the line cd connecting point c and point d is parallel to the line nm connecting point n and point m, and the line cd is offset by 7t to 9.5t relative to the line nm towards the inside of quadrilateral nA5B5m.

[0157] The line gd connecting point d and point g is parallel to the line mB5 connecting point m and point B5, and the line gd is offset by 4t to 6.5t relative to the line mB5 towards the inside of quadrilateral nA5B5m.

[0158] The line hg connecting points g and h is parallel to the line A5B5 connecting points A5 and B5, and the line hg is offset by 2t to 3t relative to the line A5B5 towards the inside of quadrilateral nA5B5m.

[0159] The line ch connecting points c and h is parallel to the line nA5 connecting points A5 and n, and the line ch is offset by 2t to 3t relative to the line nA5 towards the inside of quadrilateral nA5B5m.

[0160] Where 0.9 ≤ t ≤ 1.1. T = 50t.

[0161] Since the first side 201, the second side 202, and the third side 203 of the door body 20 need to be equipped with door frames or grooves, the area enclosed by the quadrilateral nA5B5m needs to be reserved near the edge to install the door frames or grooves. In the above embodiment, the setting area of ​​the shaft assembly 30 is further limited to the range of the quadrilateral cdgh formed by connecting points c, d, g, and h in sequence. This can provide a more accurate reference for the setting position of the shaft assembly 30, which is conducive to setting the axis of the first shaft 31 and the second shaft 32 within a reasonable area of ​​the door body 2.

[0162] In some embodiments, the axis of the first axis 31 is located in the triangle Q1Q6Q7 region formed by connecting points Q1, Q6, and Q7 in sequence, and the axis of the second axis 32 is located in the quadrilateral Q2Q3Q5Q4 region formed by connecting points Q2, Q3, Q5, and Q4 in sequence.

[0163] Wherein, point Q1 is the center of the first circle 61, which is a circle with radius R1 that is tangent to both line cd and line hg inside quadrilateral cdgh.

[0164] Point Q2 lies on the arc of the eighth circle 68, which is centered at point Q1 and has a radius of S. Point Q2 is also the center of the second circle 62, which is a circle with a radius of R2 that is tangent to the line hg inside the quadrilateral cdgh.

[0165] Point Q3 lies on the arc of the eighth circle 68, which is centered at point Q1 and has a radius of S. Point Q3 is also the center of the third circle 63, which is a circle with a radius of R2 that lies inside quadrilateral cdgh, is tangent to the connecting line cd, and is connected to the line cd.

[0166] Point Q4 is the center of the fourth circle 64, which is a circle with radius R2 inside quadrilateral cdgh, tangent to both line hg and line gd.

[0167] Q5 is the center of the fifth circle 65. The fifth circle 65 is a circle with radius R2 that is inside quadrilateral cdgh and is tangent to both line cd and line gd.

[0168] Point Q6 lies on the arc of the ninth circle 69, which is centered at point Q4 and has a radius of S. Point Q6 is also the center of the sixth circle 66, which is a circle with a radius of R1 that is tangent to the line hg inside the quadrilateral cdgh.

[0169] Point Q7 lies on the arc of the tenth circle 70, which is centered at point Q5 and has a radius of S. Point Q7 is also the center of the seventh circle 67, which is a circle with a radius of R1 that is tangent to the line cd inside quadrilateral cdgh.

[0170] R1 is the radius of the first axis 31, R2 is the radius of the second axis 32, and S is the distance between the center of the first axis 31 and the center of the second axis 32. The selection of S is based on the fact that the first groove 41 and the second groove 42 do not intersect.

[0171] In the above embodiments, the radius of the first axis 31 and the radius of the second axis 32 may be the same or different.

[0172] Firstly, the positions of the first axis 31 and the second axis 32 can only be selected within the area enclosed by the quadrilateral cdgh. By making some small circles with radii equal to the diameters of the first axis 31 and the second axis 32 and tangent to cdgh, some extreme positions of the first axis 31 and the second axis 32 within the quadrilateral cdgh are determined. Then, based on the safety distance S between the first axis 31 and the second axis 32, auxiliary circles are drawn with the small circles at the determined extreme positions as the centers to determine another part of the extreme positions of the first axis 31 and the second axis 32 within the quadrilateral cdgh. This method can accurately select the positions of the first axis 31 and the second axis 32, providing a basis for the selection of the positions of the first axis 31 and the second axis 32.

[0173] refer to Figure 10 In some embodiments, the coordinates of any point A'(x1',y1') on the first slot 41 in the xy rectangular coordinate system satisfy the following relationship:

[0174]

[0175] The xy rectangular coordinate system is established with the intersection of the second side 202 and the third side 203 of the door 20 in the fully closed state as the origin, with the first direction X as the positive direction of the x-axis and the second direction Y as the positive direction of the y-axis.

[0176] θ is the opening angle of door 20.

[0177] The coordinates of the axis A of the first axis 41 in the xy rectangular coordinate system are A(ax,ay).

[0178] ax is the x-coordinate of the axis A of the first axis 41 in the xy rectangular coordinate system.

[0179] ay is the y-coordinate of the axis A of the first axis 41 in the xy rectangular coordinate system.

[0180] The coordinates of any point u on the first trajectory line 204 in the xy rectangular coordinate system are u(x1, y1).

[0181] x1 is the x-coordinate of any point u on the first trajectory line 204 in the xy rectangular coordinate system, and y1 is the y-coordinate of any point u on the first trajectory line 204 in the xy rectangular coordinate system.

[0182] The coordinates of any point v on the second trajectory line 205 in the xy rectangular coordinate system are v(x2, y2).

[0183] x2 is the x-coordinate of any point on the second trajectory line 205 in the xy rectangular coordinate system, and y2 is the y-coordinate of any point on the second trajectory line 205 in the xy rectangular coordinate system.

[0184] Since the first axis 31 and the second axis 32 are fixed on the box 10, and the door 20 is in the fully closed state, the coordinates of the axis centers of the first axis 31 and the second axis 32 in the xy rectangular coordinate system can be known.

[0185] During the opening of the door 20, the first axis 31 moves relative to the first groove 41, and the second axis 32 moves relative to the second groove 42. Taking the intersection of the second side 202 and the third side 203 of the door 20 in the open state as the origin, the extension direction of the second side 202 as the positive direction of the x' axis, and the extension direction of the third side 203 as the positive direction of the y' axis, an x-axis is established. ′ y ′ Relative rectangular coordinate system.

[0186] This embodiment controls the movement position of the door 20 through the cooperation of two track grooves and two shafts. During the movement of the door 20, the first shaft 31 and the second shaft 32 move within the first groove 41 and the second groove 42 on the groove plate 40a fixed to the door 20, thus the two shafts move relative to the door 20. There will always be two points on the moving door 20 whose positions coincide with the axes of the first shaft 31 and the second shaft 32 fixed to the housing 10, and these two points are within x... ′ y ′ The coordinates in the relative rectangular coordinate system are the coordinates of the first axis 31 and the second axis 32 in the absolute xy rectangular coordinate system when the door is fully closed. That is, the absolute positions of the two axes on the door remain unchanged during the door's movement. For example... Figure 10 As shown.

[0187] Based on the principle that the absolute positions of the two axes on the door remain unchanged, and by combining the first trajectory line 204 and the second trajectory line 205, the position of the door movement can be determined, and the shape of the first groove 41 and the second groove 42 can be determined, providing a basis for the setting of the first groove 41 and the second groove 42.

[0188] In some embodiments, the coordinates of any point B'(x2',y2') on the second slot 42 in the xy rectangular coordinate system satisfy the following relationship:

[0189]

[0190] The xy rectangular coordinate system is established with the intersection of the second side 202 and the third side 203 of the door 20 in the fully closed state as the origin, the first direction X as the positive direction of the x-axis, and the second direction Y as the positive direction of the y-axis.

[0191] θ is the opening angle of door 20.

[0192] The coordinates of the axis A of the first axis 41 in the xy rectangular coordinate system are A(ax,ay).

[0193] ax is the x-coordinate of the axis A of the first axis 41 in the xy rectangular coordinate system.

[0194] ay is the y-coordinate of the axis A of the first axis 41 in the xy rectangular coordinate system.

[0195] The coordinates of any point u on the first trajectory line 204 in the xy rectangular coordinate system are u(x1, y1).

[0196] x1 is the x-coordinate of any point u on the first trajectory line 204 in the xy rectangular coordinate system, and y1 is the y-coordinate of any point u on the first trajectory line 204 in the xy rectangular coordinate system.

[0197] The coordinates of any point v on the second trajectory line 205 in the xy rectangular coordinate system are v(x2, y2).

[0198] x2 is the x-coordinate of any point on the second trajectory line 205 in the xy rectangular coordinate system, and y2 is the y-coordinate of any point on the second trajectory line 205 in the xy rectangular coordinate system.

[0199] The principle for determining the second groove 42 is the same as that for determining the first groove 41. The above method can accurately determine the shape of the second groove 42 and the first groove 41.

[0200] According to the descriptions of the above embodiments, when the door 20 is opened and closed, the position of the door 20 rotating around the hinge axis can be changed according to different opening and closing angles, ensuring that the outermost side of the door 20 does not exceed the outermost side of the cabinet 10, thus providing technical support for the development and application of embedded refrigerators.

[0201] The embedded implementation essentially controls the movement position of the door 20 by setting a specific trajectory curve. This embodiment provides that the first edge 21 of the door 20 moves along the first trajectory line 204, and the relationship between the first edge 21 and the second edge 22, as well as the relationship between the first edge 21 and the dual trajectory groove, are obtained based on geometric relationships.

[0202] In this embodiment of the disclosure, there are several key points in determining the first edge 21. This embodiment of the disclosure describes in detail the selection of points A1, A2, A3, A4 and A5 (the considerations and functions of each point selection) and the range of points.

[0203] For points A1 and A5: Point A1 is the starting point of the first trajectory line 204, and point A5 is the ending point of the first trajectory line 204. The selection of the starting point and the ending point will not only affect the size and assembly method of the hinge module and the gap between the door 20 and the wall 50, but also determine the position of the overall movement of the door 20, thereby determining the space utilization rate of the box 10.

[0204] Point A2 is the maximum allowable hinge point of the seal (to avoid excessive compression and wear of the seal): The selection of the position of point A2 also needs to take into account the presence of the door closer, and the position of point A2 will also affect the smoothness of the door movement and the feel of opening the door.

[0205] Point A3 is the instantaneous position of the seal leaving the housing: by limiting the distance between points A2 and A3, abrupt changes in the curvature of the first trajectory line 204 of the first edge 21 can be avoided. This prevents changes in the normal acceleration of the door 20 caused by abrupt changes in the curvature of the curve, thus preventing the door 20 from moving sluggishly.

[0206] Point A4 is the position of the first edge 21 on the first trajectory line 204 when the door is opened at a 90° angle. The selection of point A4 affects the space occupied by the door in the box 10 when the door is opened at a 90° angle. The space occupied by the door 20 in the box 10 should be reduced. The position of point A4 also limits the side gap between the door 20 and the wall 50 to ensure that the door does not hit the wall when it is opened. In addition, the position of point A4 is a transition point. It is necessary to ensure that the curvature of the arc segment from point A3 to point A4 and the arc segment from point A4 to point A5 is smooth and without abrupt changes.

[0207] The following will provide some specific embodiments, describing in detail the component features and assembly relationships of the box assembly, the determination of the running trajectory of the first edge 21 and the second edge 22 of the door 20, the determination of the position of the first shaft 31 and the second shaft 32, and the determination of the shape of the first groove 41 and the second groove 42.

[0208] I. Structural features and assembly relationships of components:

[0209] The main body includes a housing 10, a door 20, and a wall 50. Key mating parts include a hinge 30a fixed to the housing 10 and a slotted plate 40a fixed to the door 20 by screws or clips. The hinge 30a has a first shaft 31 and a second shaft 32, and the slotted plate 40a has a first slot 41 and a second slot 42. The first shaft 31 and the second shaft 32 of the hinge 30a move within the first slot 41 and the second slot 42 of the slotted plate 40a, respectively.

[0210] For ease of analysis, the moving parts of the entire assembly are simplified as follows: Figure 4 As shown. Several special planes are defined: the cabinet 10 has an access port side 101 and an outer side surface 102 relative to the door 20 and the wall 50, respectively; the side of the door 20 closest to the wall 50 has a third side surface 203, the side closest to the cabinet 10 has a first side surface 201, and the side closest to the user has a second side surface 202.

[0211] The distance between the first side 201 and the pick-up / placement port side 101 is 16%T to 25%T.

[0212] In practical applications, the distance between the first side 201 and the pick-up / placement port side 101 is typically 9mm to 11mm. The door thickness T is generally 45mm to 55mm.

[0213] The space between the first side 201 and the access port side 101 is used to install a seal to prevent the refrigerator from leaking cold. For ease of installation, a distance of 3%T to 7%T is reserved between the outer side 102 of the cabinet and the side of the wall 50. Optionally, the reserved distance between the outer side 102 of the cabinet and the side of the wall 50 is 2mm to 3mm.

[0214] A first reference plane F1 is provided between the loading / unloading port side 101 and the first side surface 201, and a second reference plane F2 is provided between the outer side surface 102 of the box body 10 and the wall surface.

[0215] The distance between the first reference plane F1 and the pick-up / placement port side 101 is f1, and the value of f1 ranges from 12%T to 25%T of the door thickness. Optionally, the distance between the first reference plane F1 and the pick-up / placement port side 101 is f1, where f1∈(7,11)mm.

[0216] The distance between the second reference plane F2 and the outer side 102 of the box is f2, where f2 is less than 0.01%T. Optionally, the distance between the second reference plane F2 and the outer side 102 of the box is f2, where f2∈(0,0.5)mm.

[0217] Under the action of external force, during the opening or closing of the door 20, due to the restriction of the track groove, the movement of the side edges of the door will form two side edge trajectories. The third side 203 intersects with the first side 201 to form the first edge 21, and the third side 203 intersects with the second side 202 to form the second edge 22. The movement trajectories of the first edge 21 and the second edge 22 are the first trajectory line 204 and the second trajectory line 205, respectively. The trajectory of the first edge 21 will never cross the first reference plane F1, otherwise the seal will easily rub against the housing 10, resulting in a seal edge twisting problem; the trajectory of the second edge 22 will never cross the second reference plane F2 to ensure that the door 20 can be smoothly embedded with zero gap.

[0218] In some embodiments, the maximum opening angle of the door 20 ranges from 100° to 120°. Optionally, the maximum opening angle of the door 20 is 110°.

[0219] In some embodiments, the door thickness T is set to 50t mm, that is, the distance between the second side 202 and the first side 201 is 50t mm. Wherein, 0.9 ≤ t ≤ 1.1. Optionally, t = 1.

[0220] II. Determination of the first trajectory line 204 and the second trajectory line 205 corresponding to the first edge 21 and the second edge 22 of the door body 20.

[0221] 2.1 First, determine the starting points A1 and B1 of the first trajectory line 204 and the second trajectory line 205. According to the above, the determination of points A1 and B1 is as follows: the distance between the first side 201 of the door body 20 and the opening side 101 of the box body 10 is set to 9mm to 11mm, and a distance of 2mm to 3mm is reserved between the outer side 102 of the box body and the side of the wall.

[0222] like Figure 9 The diagram shows the state of door 20 when it is opened to its maximum angle (110° in some embodiments). The intersection point of the first side 201 of door 20 when it is opened to its maximum angle and the second side 202 of door 20 when it is fully closed is point n. The distance between point n and the third side 203 of door 20 when it is opened to its maximum angle is nA5. The value of nA5 affects the size and assembly method of the hinge module. A larger value of nA5 is easier to install, but it also causes door 20 to move further towards the housing 10 during movement, resulting in more space being occupied inside the housing 10. Therefore, the value of nA5 ranges from 27%T to 56%T. In some examples, the value of nA5 ranges from 15mm to 25mm; optionally, the value of nA5 is 15mm.

[0223] The intersection point of the second side 202 of the door 20 in the fully open state and the second side 202 of the door 20 in the fully closed state is point m. The distance between point m and the third side 203 of the door 20 in the fully closed state is mB1. mB1 is a reserved safety distance. In practical applications, in order to provide a larger tolerance range for door production and avoid collisions between the door and the wall due to manufacturing defects, the value of mB1 is less than 0.07% of T. In some embodiments, the value of mB1 ranges from 0 to 3 mm. Optionally, the value of mB1 is 1 mm.

[0224] The starting points, namely points A1 and B1, and the ending points, namely points A5 and B5, of the movement trajectories of the first edge 21 and the second edge 22 are obtained by measuring the position from the fully closed state of the door 20 to the position of the door 20 opened to the maximum angle.

[0225] 2.2 Selection of intermediate special control points:

[0226] When designing the overall scheme, considering practical issues such as effective space utilization and smooth and easy door opening and closing, it is necessary to impose certain restrictions on the special positions of the door during the opening and closing process.

[0227] 2.2.1 Maximum hinge point A2 of the seal:

[0228] In practical applications, the distance between the first side 201 of the door 20 and the opening side 101 of the box 10 can be selected as 9mm to 11mm. This distance is used to set the sealing element. Generally, the thickness of the sealing element itself will be 1mm to 3mm smaller than this distance, which is used as compensation for the sealing element. That is, when the magnetic strip on the sealing element of the door 20 is attracted with the box 10, it has an airbag compression of 0.5mm to 3mm.

[0229] When the door is initially opened, the angled area formed by the first side 201 and the third side 203 will move towards the box 10. At this time, the seal on the door 20 will be squeezed towards the box 10. If the amount of compression of the seal exceeds its own seal compensation amount, there will be a risk of seal twisting. Therefore, the maximum twisting point of the seal must not exceed the reference first reference plane F1 (the distance between the first reference plane F1 and the pick-up and put-out side 101 is f1, f1∈(7,11)mm).

[0230] In some embodiments, the distance between the first side 201 and the pick-up / placement port side 101 is 10mm, the distance f1 between the first reference plane F1 and the pick-up / placement port side 101 is 9.4mm, and the sealing compensation amount of the selected seal is 1.5mm. The maximum twisting amount of the seal (0.6mm) is less than the sealing compensation amount (1.5mm), which can completely avoid the risk of seal twisting.

[0231] On the other hand, considering the presence of door closers in practical applications (door closer: a hook-like part installed on one side of the hinge, whose contact part with the hinge is designed with appropriate interference to allow the door to automatically close in place when the door reaches a certain angle), the resistance of the door closer needs to be overcome during the opening of the door 20. Usually, the angle between the door closer and the door is between 6° and 11°, and in some embodiments, the angle between the door closer and the door is 8°.

[0232] Setting the maximum hinge point A2 of the seal after the door body 20 disengages from the door closer can reduce the opening force (i.e., the maximum hinge point A2 of the seal needs to be set at a position where the opening angle of the door body 20 is greater than 8°); in order to leave sufficient displacement margin for the subsequent movement of the door body 20, ensure a smooth and easy opening feel, and meet the requirement that the curvature of the edge trajectory curve be as smooth as possible, the position of the maximum hinge point A2 of the seal must not exceed the position where the opening angle of the door body 20 is 20°.

[0233] Specifically, in some embodiments, point A2 is set when the door 20 is opened by 16.9°, and the coordinates of the first edge 21 on the first trajectory line 204 in the xy rectangular coordinate system are (14.9t, 50.6t) (see reference). Figure 4 and Figure 5 .

[0234] 2.3 Point A3 corresponding to the seal's departure position:

[0235] After the door 20 moves to the maximum hinge point A2 of the seal, in order to ensure that the movement of the door 20 is smooth and stable, the curvature of the edge trajectory curve should meet the basic requirement of uniformity and no sudden changes as much as possible. Therefore, after the door 20 leaves the maximum hinge point A2 of the seal, it should move smoothly and slowly until the seal leaves. If the distance between the point A3 where the seal leaves the housing and the maximum hinge point A2 of the seal is too small, the curvature of the curve of the A2A3 arc segment from point A2 to point A3 (the segment from the maximum hinge point of the seal to the point where the seal leaves the housing) will suddenly increase. If the distance between the point A3 where the seal leaves the housing and the maximum hinge point A2 of the seal is too large, the curvature of the curve of the A3A5 arc segment from point A3 to point A5 (the segment from the point where the seal leaves to the end point) will suddenly increase. The increased curvature of the curve will cause the normal acceleration of the door to increase, which will lead to the door 20 moving poorly.

[0236] Point A3 falls on the first side 201 of the door 20 when it is fully closed. Combined with the position of the maximum hinge point A2 of the seal, point A3, where the seal leaves the housing 10, can be taken as the intersection of the door opening angle of 20° to 40° and the first side 201 of the door 20 when it is fully closed. In some embodiments, point A3 is set at the position of the first trajectory line 204 where the first edge 21 is located when the door 20 opens at an angle of 35.3°. In the xy rectangular coordinate system, the coordinates of point A3 can be selected as (29.9t, 50t).

[0237] 2.4 Point A4 corresponding to a door opening angle of 90°:

[0238] When the door opens at a 90° angle, on the one hand, the second side 202 should be as close as possible to the outer side 102 of the refrigerator body to reduce the space required for internal moving parts (such as drawers) to move outward, thus improving the refrigerator's space utilization. On the other hand, it is also necessary to ensure that when the door 20 is opened to more than 90°, there is sufficient clearance between the second side 202 and the side of the wall. Based on these two considerations, special control is required when the door is at the 90° position.

[0239] like Figure 7 The diagram shows the state of door 20 when it is opened to 90°. The intersection point K between the first side 201 of door 20 when it is opened to 90° and the second side 202 of door 20 when it is fully closed is the third side 203 of door 20 when it is opened to 90° is the third side 203 of door 20. From the above analysis (start and end point selection analysis), we know that KA4 is greater than nA5. The intersection point F between the second side 202 of door 20 when it is opened to 90° and the second side 202 of door 20 when it is fully closed is the fourth side 203 of door 20 when it is fully closed is the fifth side 203 of door 20. The distance FB1 between point F and the third side 203 of door 20 when it is fully closed is the fifth side 203 of door 20.

[0240] To improve the space utilization of the cabinet, FB1 should be as small as possible. That is, when the door 20 moves to a 90° position, the smaller the distance between the second side 202 and the outer side 102 of the cabinet 10, the less space the door 20 occupies. Furthermore, when the door 20 is opened to more than 90° (90° to 110°), sufficient clearance should be left between the second side 202 and the wall side to prevent the second side 202 from colliding with the wall side. Therefore, FB1 should be greater than mB1.

[0241] Based on the above analysis, and considering that the curvature of the edge trajectory curve should meet the basic requirement of being as uniform, smooth, and without abrupt changes as possible, i.e., ensuring that the curve curvature of segments A3A4 and A4A5 is as smooth as possible, the position connecting points A3 and A4 is extremely important. The curvature of the curve must not change abruptly when passing through this position. Point A3 is the point where the seal leaves the housing. The movement of the door 20 in segment A3A5 (in some embodiments, the door opening angle is 35.3° to 110°) can be regarded as its entire movement in the second direction Y. To ensure the smooth movement of the door 20, when a point on the door 20 moves along the first edge 21 from the point where the seal leaves the housing (point A3) to a 90° position, the distance it travels along the second direction Y (i.e., the y-coordinate difference of the curve in segment A3A4) should, as far as possible, occupy 60% to 65% of the total distance traveled in the second direction Y (i.e., the y-coordinate difference of the curve in segment A1A4). In some embodiments, the selected proportion is 62%.

[0242] Therefore, in some embodiments, the value of KA4 ranges from 20mm to 30mm, and optionally, the value of KA4 is 27.6mm. The value of FB1 ranges from 3mm to 10mm. Optionally, the value of FB1 is 6.5mm.

[0243] III. Description of the trajectory curves of the two edges on the door body:

[0244] Based on the above, the position coordinates of several points A1A2A3A4A5 and B1B2B3B4B5 on the motion trajectories of the first edge 21 and the second edge 22 were determined. Analytical geometry analysis shows that there is a one-to-one functional relationship between the first edge 21 and the second edge 22; for example, knowing the position coordinates of a point on one edge allows us to deduce the position coordinates of the corresponding point on the other edge. Since the distance between points B5 and B1 on the x-axis and y-axis of the second edge 22 is small, and its trajectory never crosses the second reference plane F2, and to ensure the smooth and stable movement of the door 20, the curvature of the inner and outer edge curves must be uniform without abrupt changes. This results in a small range of curvature variation for the second trajectory line 205 of the second edge 22, thus having a relatively small impact on the overall motion trend of the door. Therefore, the following section will focus on describing the first trajectory line 204 of the first edge 21.

[0245] 3.1 Relationship between the first edge 21 and the second edge 22:

[0246] Based on the always fixed front wall 501 and the outer side of the box 102, establish as follows Figure 10 The xy rectangular coordinate system shown has the positive x-axis pointing from the side away from the box to the center of the box, and the positive y-axis pointing from the front away from the door to the front of the box. Assume the thickness of the door is 50t, t∈[0.9,1.1]. Taking t=1 as an example, the rotation angle of the door is θ, θ∈[0,110°]. In the top view, the projection of the first edge 21 of the door is a point u(x1,y1), and the trajectory formed by its movement is A1A5. The projection of the second edge 22 of the door is a point v(x2,y2), and the trajectory formed by its movement is B1B5.

[0247] Based on the relationship between u and v:

[0248]

[0249] The coordinates of point v can be obtained from the coordinates of point u:

[0250]

[0251]

[0252] 3.2 Description of the first trajectory line 204 of the first edge 21:

[0253] The movement process of the door 20 is divided into 3 stages:

[0254] 3.2.1 Reference Figure 6 Door 20 fully closed (0°) – the instant the seal leaves housing 10 (door 20 opening angle is 35.3°):

[0255] This stage corresponds to the first arc segment of the first trajectory line 204, which is the first arc segment A1A2A3. The value ranges of the starting point A1, the maximum twisted edge of the seal A2, and the point where the seal leaves the housing A3, as well as the specific position coordinates selected in some embodiments, have been determined from the above analysis.

[0256] In some embodiments, the first arc segment A1A2A3 is set as a curve with smooth curvature, and the simplified fitting is a quadratic function curve with symmetry. (See reference) Figure 6 A rectangular coordinate system x″y″ is established, with the intersection of the first side 201 and the third side 203 of the door 20 when it is fully closed as the origin. The positive direction of the x″ axis is the direction away from the third side 203 and pointing towards the center of the door. The positive direction of the y″ axis is the direction away from the first side 201 and pointing towards the opening 101 of the box 10. The simplified quadratic function of the symmetry of the first arc segment A1A2A3 is:

[0257] y = c1x 2 +c2x+c3

[0258] Where c1 ranges from -0.0046 to 0. c2 ranges from 0 to 0.135. c3 = 0.

[0259] In some embodiments, the simplified quadratic function of the symmetry of the first arc segment A1A2A3 is:

[0260] y = -0.0028x 2 +0.081x

[0261] 3.2.2 The instant the seal leaves the enclosure (door opening angle 35.3°) – door 20 open to 90 degrees (door opening angle 90°):

[0262] This stage corresponds to the second arc segment of the first trajectory line 204, which is the second arc segment A3A4. The value range of point A3 when the seal leaves the box and point A4 when the door opens at an angle of 90° has been determined from the above analysis, as well as the specific position coordinates selected in some embodiments.

[0263] refer to Figure 10 An xy rectangular coordinate system is established. The xy rectangular coordinate system is established with the intersection of the second side 202 and the third side 203 of the door 20 in the fully closed state as the origin, the positive x-axis is the direction away from the third side 203 and pointing towards the center of the door, and the positive y-axis is the direction away from the second side 202 and pointing towards the first side 201.

[0264] The second arc segment A3A4 is set as a smooth curve with uniform curvature, and simplified by fitting it as an arc segment with a center coordinate of (27t, 19.7t) and a radius of 30t to 31t. Optionally, the radius is 30.4t.

[0265] 3.2.3 Door 20 open to 90 degrees (door opening angle 90°) – Door 20 open to the preset maximum angle (door opening angle is 110°):

[0266] This stage corresponds to the third arc segment of the first trajectory line 204, which is the third arc segment A4A5. Based on the above analysis, the value range of point A4 corresponding to the position where the door is open at 90° and point A5 corresponding to the fully open state of the door have been determined, as well as the specific position coordinates selected in some embodiments.

[0267] The third arc segment A4A5 is set as a smooth curve with uniform curvature. After simplified fitting, it is an arc segment with a center coordinate of (14.4t, 11.7t) and a radius of 40t to 50t. Optionally, the radius is 45t.

[0268] IV. Selection of the positions of the two axes:

[0269] According to the component assembly relationship described above, the first shaft 31 and the second shaft 32 on the hinge 30a are installed and fixed on the housing 10. They cooperate with the first groove 41 and the second groove 42 opened in the groove plate 40a installed and fixed on the door 20, and move within the groove.

[0270] refer to Figure 9 When the door 20 moves from the fully closed state to the fully open position, in order to complete the embedded movement of the door 20, the axes of the first axis 31 and the second axis 32 must always be on the door 20, both in the fully closed state and in the fully open state. Therefore, the positions of the two axes are set within the range of the quadrilateral nA5B5m formed by the four points n, A5, B5, and m.

[0271] In practical applications, not every position within the thickness of the gate body (50t) can be used to set up the dual axes. As can be seen from the above analysis of the determination of the trajectory of the two edges, the distance between the dual axes and the second side 202 and the third side 203 of the gate body 20 during the movement process needs to be carefully controlled.

[0272] The second side 202 of the door body needs to be provided with glass of 3t to 4t thickness, a door frame of 2t to 3.5t thickness, and a groove plate of 2t to 3t thickness in sequence in the direction from the second side 202 to the first side 201; the third side 203 needs to be provided with a door frame of 2t to 3.5t thickness and a groove plate of 2t to 3t thickness in sequence in the direction from the first side 201 to the second side 202; and a groove plate of 2t to 3t thickness needs to be provided in the direction from the first side 201 to the second side 202. Based on this, when the above constraints are added to the door body 20 in the fully closed state (door body opening angle is 0°) and the door body 20 in the fully open state (door body opening angle is 110°), the dual-axis setting range is further reduced to the cdgh range.

[0273] refer to Figure 8 Considering the double-groove configuration on the groove plate, the distance between the two axis centers of the dual shafts must be greater than 15t to avoid the two track grooves intersecting. To ensure the dual shafts have sufficient strength, their radius can be set to 2.5t to 4t. In some embodiments, the glass thickness is selected as 3.2t, the door frame thickness as 2.5t, the groove plate thickness as 2.5t, the distance between the two axis centers as 17.8t, and the shaft radius as 3t.

[0274] To set up a dual-axis system within the cdgh range (specifically, in some embodiments, a right trapezoid with an upper base of 3.1t, a lower base of 16.5t, and a height of 36.8t), with the axis centers separated by a distance S = 17.8t and axis radii R1 = R2 = 3t, the selectable range of the two axis centers is not large. The extreme positions of the axes within the cdgh range are determined to further narrow down the possible range of the two axes. The specific method is as follows:

[0275] Draw a first circle 61 with a radius of 3t, tangent to sides cd and hg. The center of the first circle 61 is (11.2t, 43.9t). Then, draw an eighth circle 68 with a radius of 17.8t centered on the center of the first circle 61. This results in a second circle 62 with a radius of 3t tangent to hg, with the center coordinates (17.3t, 27.2t). Also, draw a third circle 63 with a radius of 3t tangent to cd, with the center coordinates (11.2t, 26.1t). Finally, draw a fourth circle 64 with a radius of 3t, tangent to sides hg and gd, with the center coordinates (11.2t, 43.9t). (9.8t, 20.1t), then with the fourth circle 64 as the center, draw the ninth circle 69 with a radius of 17.8t, and obtain the sixth circle 66 with a radius of 3t that is tangent to hg. The center coordinates of the sixth circle 66 are (13.8t, 36.9t); draw the fifth circle 65 with a radius of 3t. The fifth circle 65 is tangent to the sides gd and cd. The center coordinates of the fifth circle 65 are (11.2t, 17t). Then with the center of the fifth circle 65 as the center, draw the tenth circle 70 with a radius of 17.8t, and obtain the seventh circle 67 with a radius of 3t that is tangent to cd. The radius of the seventh circle 67 is (11.2t, 34.8t).

[0276] The acceptable ranges for the axis centers of the first axis 31 and the second axis 32 can be determined using the method described above. (Reference) Figure 9 The possible range of the axis center of the first axis 31 is: Figure 9 The small triangle shown is the area formed by connecting the centers of the first circle 61, the sixth circle 66, and the seventh circle 67. The possible range of the center of the second axis 32 is a small quadrilateral, which is the area formed by connecting the centers of the second circle 62, the third circle 63, the fifth circle 65, and the fourth circle 64.

[0277] The main idea of ​​the above method is that the first circle 61 to the seventh circle 67 can further narrow down the range of cdgh to further lock the position of the two axes. Since the axis radius is 3t and the distance between the two axis centers is 17.8t, and both axes can only be selected within the range of cdgh, several small circles with a radius of 3t and tangent to cdgh are first drawn to determine some of the extreme positions of the axes on cdgh. Then, based on the distance between the two axes of 17.8t, auxiliary circles are drawn with the small circles at the determined extreme positions as the centers to determine the other part of the extreme positions of the two axes.

[0278] In some embodiments, the position coordinates of the center of the first axis 31 in the xy coordinate system are A(39.4t, 12.6t); and the position coordinates of the center of the second axis 32 in the xy coordinate system are B(22.4t, 17.9t).

[0279] V. Determination of the dual-slot trajectory:

[0280] 5.1 Method for determining the trajectory of a dual-slot system:

[0281] The embedded implementation essentially involves controlling the movement position of the door 20 through the interaction of two curved grooves and two axes. During the movement of the door 20, the first axis 31 and the second axis 32 on the hinge 30a move within the first groove 41 and the second groove 42 on the slot plate 40a fixed to the door 20, thus causing relative movement between the two axes and the door 20. There will always be two points on the moving door 20 whose positions coincide with the axes of the first axis 31 and the second axis 32 of the hinge 30a fixed to the housing 10, and these two points lie in a relative coordinate system x with the second side 202 and the third side 203 as references. ′ y ′ The coordinates in the equation are the coordinates of the door in the closed state within the absolute coordinate system xy (referring above to the always fixed front wall 501 and outer surface 102 of the box as references), meaning that the absolute positions of the two axes on the door remain unchanged during the door's movement. For example... Figure 10 As shown.

[0282] Based on the principle that the absolute positions of the two axes on the door remain unchanged, and combined with the position of the door movement determined by the first trajectory line 204 of the first edge 21 and the second trajectory line 205 of the second edge 22, the double-groove trajectory can be determined. The specific derivation process is as follows:

[0283] Let the equation of the straight line L1 formed by the projection of the second side 202 of the door body rotated to an angle θ in the XY rectangular coordinate system be:

[0284] L1: y - xtanθ + x2tanθ - y2 = 0

[0285] Let the equation of the line L2 formed by the projection of the third side 203 of the door body rotated to an angle θ in the XY rectangular coordinate system be:

[0286] L2:

[0287] As described above, in some embodiments the positions of the two axes are: the axis center position coordinates of the first axis 31 are A (39.4t, 12.6t), and the axis center position coordinates of the second axis 32 are B (22.4t, 17.9t).

[0288] Therefore, when the door rotates to angle θ, let A'(x1',y1') and B'(x2',y2') be two points on the double-groove trajectory. Then the positions of the axes A and B in the relative coordinate system X'Y' are the same as the positions of A' and B' in the absolute coordinate system XY. From this, we can obtain:

[0289] The distances from point A to lines L1 and L2 are equal to the distances from A' to the x-axis and y-axis, respectively. In other words, the distance from point A to line L1 is equal to the distance from A' to the x-axis, and the distance from point A to line L2 is equal to the distance from A' to the y-axis.

[0290] Therefore, the coordinates of A'(x1',y1') can be obtained:

[0291]

[0292] Similarly, the coordinates of B'(x2',y2') can be obtained:

[0293]

[0294] By inputting the coordinates u(x1,y1) of any point on the first trajectory line 204 corresponding to the first edge 21, and the coordinates v(x2,y2) of any point on the second trajectory line 205 corresponding to the second edge 22, the coordinates of any point A' on the first groove 41 and the coordinates of any point B' on the second groove 42 can be obtained, thus obtaining the trajectory curves of the first groove 41 and the second groove 42.

[0295] Some embodiments of this disclosure also provide a refrigerator that includes the cabinet assembly provided in any of the above embodiments.

[0296] The refrigerator provided in this disclosure includes the cabinet assembly provided in any embodiment of this disclosure, and accordingly possesses the beneficial effects of the cabinet assembly.

[0297] Based on the embodiments disclosed above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0298] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A housing assembly, characterized in that, include: Box (10); and A door (20) is rotatably connected to the housing (10). The door (20) includes a first side (201), a second side (202), and a third side (203). The first side (201) is disposed opposite to the second side (202), and the first side (201) is adjacent to the housing (10). The first side (201) and the third side (203) intersect to form a first edge (21) extending along a third direction (Z). The second side (202) and the third side (203) intersect to form a second edge (22) extending along a third direction (Z). The first edge (21) is configured to move with the door (20) from a fully closed state to a fully open state, forming a first trajectory line (204). The first trajectory line (204) does not exceed a first reference plane (F1). The second edge (22) is configured to move with the door (20) from a fully closed state to a fully open state. The fully open state is moved to form a second trajectory line (205), which does not exceed the second reference plane (F2); wherein, the first reference plane (F1) is located between the box (10) and the door (20), parallel to the first direction (X), and the distance between the first reference plane (F1) and the box (10) is 12%T~25%T; the second reference plane (F2) is located outside the box (10), parallel to the second direction (Y), and the distance between the second reference plane (F2) and the box (10) is less than 0.01%T, wherein T is the distance between the first edge (21) and the second edge (22); the first direction (X) is perpendicular to the second direction (Y); both the first direction (X) and the second direction (Y) are perpendicular to the third direction (Z), and the third direction (Z) is the height direction of the box (10); The distance between the first trajectory line (204) and the second reference plane (F2) increases as the opening angle of the door (20) increases, and the distance between the first trajectory line (204) and the box (10) first decreases and then increases as the opening angle of the door (20) increases; The first trajectory line (204) includes a first arc segment, a second arc segment and a third arc segment connected in sequence from the door body (20) in a fully closed state to a fully open state. The first arc segment is constructed as a quadratic function curve protruding towards the box body (10); the second arc segment and the third arc segment are constructed as circular arc segments.

2. The housing assembly according to claim 1, characterized in that, The first edge (21) is located at point A1 on the first trajectory line (204) when the door (20) is fully closed, and the distance between point A1 and the box (10) is 16%T~25%T.

3. The housing assembly according to claim 1, characterized in that, The straight-line distance nA5 between point A5 and point n is 27%T~56%T, where point A5 is the position of the first edge (21) on the first trajectory line (204) when the door (20) is fully open, and point n is the intersection of the second side (202) when the door (20) is fully closed and the first side (201) when the door (20) is fully open.

4. The housing assembly according to claim 1, characterized in that, The straight-line distance mB1 between point m and point B1 is less than 0.07%T, where point B1 is the position of the second edge (22) on the second trajectory line (205) when the door (20) is fully closed, and point m is the intersection of the second side (202) when the door (20) is fully closed and the second side (202) when the door (20) is fully open.

5. The housing assembly according to claim 1, characterized in that, The first trajectory line (204) is tangent to the first reference plane (F1) at point A2, and the first edge (21) is configured to be located at point A2 when the opening angle of the door (20) is 8°~20°.

6. The housing assembly according to claim 1, characterized in that, The first edge (21) is configured to be located at point A3 on the first trajectory line (204) when the door (20) is opened at an angle of 20° to 40°. Point A3 is the intersection of the first trajectory line (204) and the first side (201) of the door (20) in the fully closed state.

7. The housing assembly according to claim 3, characterized in that, The first edge (21) is configured to be located at point A4 on the first trajectory line (204) when the door (20) is opened at an angle of 90°. The straight distance KA4 between point A4 and point K is greater than the straight distance nA5. Point K is the intersection of the second side (202) of the door (20) in the fully closed state and the first side (201) of the door (20) when the door (20) is opened at an angle of 90°.

8. The housing assembly according to claim 4, characterized in that, The straight-line distance FB1 between point B1 and point F is greater than the straight-line distance mB1, wherein point F is the intersection of the second side (202) of the door (20) in the fully closed state and the second side (202) of the door (20) when the opening angle is 90°.

9. The housing assembly according to claim 6, characterized in that, The projection length of the line connecting points A3 and A4 in the second direction (Y) accounts for 60% to 65% of the projection length of the line connecting points A3 and A5 in the second direction (Y). Point A4 is the position of the first edge (21) on the first trajectory line (204) when the door (20) is opened at an angle of 90°. Point A5 is the position of the first edge (21) on the first trajectory line (204) when the door (20) is fully opened.

10. The housing assembly according to claim 1, characterized in that, The first arc segment is the arc segment from point A1 to point A3, the second arc segment is the arc segment from point A3 to point A4, and the third arc segment is the arc segment from point A4 to point A5; wherein, Point A1 is the position of the first edge (21) on the first trajectory line (204) when the door (20) is fully closed; Point A3 is the position of the first edge (21) located on the first trajectory line (204) when the opening angle of the door (20) is 20°~40°; Point A4 is the position of the first edge (21) on the first trajectory line (204) when the door (20) is opened at an angle of 90°; Point A5 is the position of the first edge (21) on the first trajectory line (204) when the door (20) is fully open.

11. The housing assembly according to claim 1 or 10, characterized in that, The curvature of the second arc segment is greater than that of the third arc segment, and the arc length of the second arc segment is greater than that of the third arc segment.

12. The housing assembly according to claim 1, characterized in that, It also includes a shaft assembly (30) and a track groove group (40), the shaft assembly (30) being disposed in one of the door body (20) and the box body (10), and the track groove group (40) being disposed in the other of the door body (20) and the box body (10). The shaft assembly (30) includes a first shaft (31) and a second shaft (32), and the track groove group (40) includes a first groove (41) and a second groove (42). The first shaft (31) is configured to move relative to the first groove (41) in the first groove (41) as the door body (20) is opened and closed, and the second shaft (32) is configured to move relative to the second groove (42) in the second groove (42) as the door body (20) is opened and closed.

13. The housing assembly according to claim 12, characterized in that, The setting area of ​​the shaft assembly (30) is within the quadrilateral nA5B5m formed by connecting points n, A5, B5, and m in sequence; wherein, point n is the intersection of the second side (202) of the door (20) in the fully closed state and the first side (201) of the door (20) in the fully open state; point A5 is the position of the first edge (21) on the first trajectory line (204) in the fully open state of the door (20); point B5 is the position of the second edge (22) on the second trajectory line (205) in the fully open state of the door (20); and point m is the intersection of the second side (202) of the door (20) in the fully closed state and the second side (202) of the door (20) in the fully open state.

14. The housing assembly according to claim 13, characterized in that, The setting area of ​​the shaft assembly (30) is within the quadrilateral cdgh formed by connecting points c, d, g, and h in sequence, wherein, The line cd connecting point c and point d is parallel to the line nm connecting point n and point m, and the line cd is offset by 7t to 9.5t relative to the line nm towards the inside of quadrilateral nA5B5m. The line gd connecting point d and point g is parallel to the line mB5 connecting point m and point B5, and the line gd is offset by 4t to 6.5t relative to the line mB5 towards the inside of quadrilateral nA5B5m. The line hg connecting point g and point h is parallel to the line A5B5 connecting point A5 and point B5, and the line hg is offset by 2t to 3t relative to the line A5B5 towards the inside of quadrilateral nA5B5m. The line ch connecting point c and point h is parallel to the line nA5 connecting point A5 and point n, and the line ch is offset by 2t to 3t relative to the line nA5 towards the inside of quadrilateral nA5B5m. Where 0.9≤t≤1.1, T=50t.

15. The housing assembly according to claim 14, characterized in that, The axis of the first axis (31) is located in the triangle Q1Q6Q7 region formed by connecting points Q1, Q6 and Q7 in sequence, and the axis of the second axis (32) is located in the quadrilateral Q2Q3Q5Q4 region formed by connecting points Q2, Q3, Q5 and Q4 in sequence. Wherein, point Q1 is the center of the first circle (61), and the first circle (61) is a circle with radius R1 that is tangent to both line cd and line hg inside the quadrilateral cdgh. The point Q2 is on the arc of the eighth circle (68) formed with point Q1 as the center and S as the radius, and the point Q2 is the center of the second circle (62). The second circle (62) is a circle with radius R2 that is tangent to the connecting line hg inside the quadrilateral cdgh. The point Q3 is on the arc of the eighth circle (68) formed with point Q1 as the center and S as the radius, and the point Q3 is the center of the third circle (63). The third circle (63) is a circle with radius R2 that is inside the quadrilateral cdgh and is tangent to the connecting line cd. The point Q4 is the center of the fourth circle (64), which is a circle with radius R2 that is tangent to both the line hg and the line gd inside the quadrilateral cdgh. Q5 is the center of the fifth circle (65), which is a circle with radius R2 that is tangent to both line cd and line gd inside the quadrilateral cdgh. The point Q6 is on the arc of the ninth circle (69) formed with the point Q4 as the center and S as the radius, and the point Q6 is the center of the sixth circle (66). The sixth circle (66) is a circle with radius R1 that is tangent to the line hg inside the quadrilateral cdgh. The Q7 point is on the arc of the tenth circle (70) formed with the Q5 point as the center and S as the radius, and the Q7 point is the center of the seventh circle (67). The seventh circle (67) is a circle with radius R1 that is tangent to the connecting line cd inside the quadrilateral cdgh. R1 is the radius of the first axis (31), R2 is the radius of the second axis (32), S is the distance between the center of the first axis (31) and the center of the second axis (32), and S is selected based on the fact that the first groove (41) and the second groove (42) do not intersect.

16. The housing assembly according to claim 12, characterized in that, The coordinates of any point A'(x1',y1') on the first slot (41) in the xy rectangular coordinate system satisfy the following relationship: The xy rectangular coordinate system is a rectangular coordinate system established with the intersection of the second side (202) and the third side (203) of the door (20) in the fully closed state as the origin, the first direction (X) as the positive x-axis, and the second direction (Y) as the positive y-axis. The opening angle of the door (20); ax is the x-coordinate of the axis center of the first axis (41) in the xy rectangular coordinate system; ay is the y-coordinate of the axis center of the first axis (41) in the xy rectangular coordinate system; x1 is the x-coordinate of any point on the first trajectory line (204) in the xy rectangular coordinate system, and y1 is the y-coordinate of any point on the first trajectory line (204) in the xy rectangular coordinate system; x2 is the x-coordinate of any point on the second trajectory line (205) in the xy rectangular coordinate system, and y2 is the y-coordinate of any point on the second trajectory line (205) in the xy rectangular coordinate system.

17. The housing assembly according to claim 12, characterized in that, The coordinates of any point B'(x2',y2') on the second groove (42) in the xy rectangular coordinate system satisfy the following relationship: The xy rectangular coordinate system is a rectangular coordinate system established with the intersection of the second side (202) and the third side (203) of the door (20) in the fully closed state as the origin, the first direction (X) as the positive x-axis, and the second direction (Y) as the positive y-axis. The opening angle of the door (20); bx is the x-coordinate of the axis center of the second axis (42) in the xy rectangular coordinate system; by is the y-coordinate of the axis center of the second axis (42) in the xy rectangular coordinate system; x1 is the x-coordinate of any point on the first trajectory line (204) in the xy rectangular coordinate system, and y1 is the y-coordinate of any point on the first trajectory line (204) in the xy rectangular coordinate system; x2 is the x-coordinate of any point on the second trajectory line (205) in the xy rectangular coordinate system, and y2 is the y-coordinate of any point on the second trajectory line (205) in the xy rectangular coordinate system.

18. A refrigerator, characterized in that, Includes the housing assembly according to any one of claims 1 to 17.

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