refrigerator

Abstract

The present disclosure relates to a box body, comprising an outer side wall; a door body, provided on the box body, the door body comprising a first side wall and a second side wall arranged opposite to each other, wherein when the door body is in a closed state, the first side wall is located on an extension surface of the outer side wall, and the door body is configured to open relative to the box body from the second side wall; a first connecting member, provided on one of the box body and the door body, the first connecting member comprising a first axis and a second axis; and a second connecting member, provided on the other of the box body and the door body, the second connecting member being provided with a first groove and a second groove, the first groove and the second groove respectively accommodating the first axis and the second axis in a one-to-one correspondence; when the door body is in a closed state, the first end of the first groove extends in a direction close to the box body and the extension surface to the second end of the first groove, and the first end of the second groove extends in a direction close to the box body and the extension surface to the second end of the second groove. During the opening process of the door body, its rotation axis moves toward the inner side of the extension surface, and the door body can be opened freely without touching the wall or cabinet body, thereby saving space.

Description

Technical Field

[0001] The present disclosure relates to the field of refrigeration technology, and in particular to a refrigerator. Background Art

[0002] The door is a crucial component of the refrigerator system, primarily used to open and close the access panel and potentially equipped with touchscreen and display features. Normally, the door is attached to the refrigerator by hinges, allowing for circular rotation around the hinge axis. In some cases, the refrigerator is placed in a corner, requiring a certain distance from the wall to ensure the door can open at an angle greater than 90°. To conserve space, built-in refrigerators are a major future development trend. However, traditional hinge mechanisms for built-in refrigerators often hinder effective door opening. Summary of the Invention

[0003] Some embodiments of the present disclosure provide a refrigerator for alleviating the problem that a door cannot be opened properly.

[0004] In one aspect of the present disclosure, there is provided a refrigerator comprising:

[0005] a box body, including an outer side wall;

[0006] a door body provided on the box body, the door body comprising a first side wall and a second side wall arranged opposite to each other, wherein when the door body is in a closed state, the first side wall is located on an extension surface of the outer side wall, and the door body is configured to open relative to the box body from the second side wall;

[0007] A first connecting member is provided on one of the box body and the door body, the first connecting member comprising a first shaft and a second shaft; and

[0008] A second connecting member is provided on the other of the box body and the door body, and a first groove and a second groove are provided on the second connecting member, and the first groove and the second groove respectively accommodate the first axis and the second axis in a one-to-one correspondence; when the door body is in a closed state, the first end of the first groove extends to the second end of the first groove along the direction close to the box body and the extension surface, and the first end of the second groove extends to the second end of the second groove along the direction close to the box body and the extension surface.

[0009] In some embodiments, the first groove includes a first arc segment and a first straight segment, and the second groove includes a second arc segment and a second straight segment.

[0010] In some embodiments, the first axis is configured to move first relative to the first arc segment and then relative to the first straight line segment during the process of the door body moving from closing to opening; the second axis is configured to move first relative to the second arc segment and then relative to the second straight line segment during the process of the door body moving from closing to opening.

[0011] In some embodiments, when the door is in a closed state, the first axis is located at an end of the first arc segment away from the first straight segment, and the second axis is located at an end of the second arc segment away from the second straight segment.

[0012] In some embodiments, the center of the first arc segment coincides with the center of the second arc segment.

[0013] In some embodiments, the point where the center of the first arc segment coincides with the center of the second arc segment is located on the extension surface, and the distance between the coincidence point and the door body is 0 to 15 mm.

[0014] In some embodiments, the radius of the first arc segment is R1, the radius of the second arc segment is R2, and R2=(1 / 5-1 / 3)R1+R1.

[0015] In some embodiments, the central angle range of the first arc segment and the central angle range of the second arc segment are both 8° to 12°.

[0016] In some embodiments, when the first axis moves relative to the first arc segment and the second axis moves relative to the second arc segment, the hinge axis of the door body is located at a first position; when the first axis moves relative to the first straight line segment and the second axis moves relative to the second straight line segment, the hinge axis of the door body is located at a second position, and the second position is away from the extension surface relative to the first position.

[0017] In some embodiments, the center of the first arc segment coincides with the center of the second arc segment, the coincidence point is located on the extension surface, the distance between the coincidence point and the door body is a first distance, and the position of the hinge axis does not exceed the circular area formed with the coincidence point as the center and the first distance as the radius.

[0018] In some embodiments, the first end of the first straight line segment is connected to the first arc segment, and when the door body is closed, the second end of the first straight line segment extends in a direction close to the extension surface.

[0019] In some embodiments, when the door is closed, the first straight line segment extends horizontally or extends obliquely toward the box.

[0020] In some embodiments, the first end of the second straight line segment is connected to the second arc segment, and when the door body is closed, the second end of the second straight line segment extends obliquely toward the extension surface and the box body.

[0021] In some embodiments, the angle between the second straight line segment and the horizontal line is in the range of 35° to 40°, or the angle between the line formed by the first end and the second end of the second arc segment and the second straight line segment is in the range of 145° to 150°.

[0022] In some embodiments, the second end of the first arc segment is connected to the first end of the first straight line segment, and the second end of the second arc segment is connected to the first end of the second straight line segment; when the door body is opened to a first angle, the first axis is located at the connection between the first straight line segment and the first arc segment, and the second axis is located at the intersection of the second straight line segment and the second arc segment.

[0023] In some embodiments, when the door body is opened to a second angle, the first axis is located at the second end of the first straight segment, and the second axis is located between the first end and the second end of the second straight segment; the second angle is greater than the first angle.

[0024] In some embodiments, during the process of the door body opening from the second angle to the third angle, the first shaft rotates at the second end of the first straight segment, and the second shaft continues to move toward the second end of the second straight segment; the third angle is greater than the second angle.

[0025] In some embodiments, during the process of the door body opening from the third angle to the fourth angle, the first axis moves from the second end of the first straight line segment to the first end of the first straight line segment, and the second axis continues to move toward the second end of the second straight line segment; the fourth angle is greater than the third angle.

[0026] In some embodiments, when the door is opened to the fourth angle, the first axis is located between the second end and the first end of the first straight segment, and the second axis is located at the second end of the second straight segment.

[0027] In some embodiments, when the door body is opened to a fifth angle, the first axis is located at the connection between the first straight line segment and the first arc segment, the second axis is located between the second end and the first end of the second straight line segment, and the fifth angle is the maximum opening angle of the door body.

[0028] In some embodiments, when the door body is closed, the first end of the first groove is close to the extension surface relative to the first end of the second groove; the distance range between the first end of the first groove and the first end of the second groove and the extension surface is (1 / 3 to 2 / 3)W, where W is the thickness of the door body.

[0029] Based on the above technical solution, the present disclosure has at least the following beneficial effects:

[0030] In some embodiments, the first end of the first groove extends to the second end of the first groove along the direction close to the box body and the extension surface, and the first end of the second groove extends to the second end of the second groove along the direction close to the box body and the extension surface. The first groove guides and limits the relative movement trajectory of the first axis during the process of opening the door body relative to the box body; the second groove guides and limits the relative movement trajectory of the second axis during the process of opening the door body relative to the box body, so that the rotation axis of the door body moves toward the inside of the extension surface during the opening process, avoiding the first edge line where the front side wall of the door body intersects with the first side wall, and the second edge line where the rear side wall of the door body intersects with the first side wall exceeds the extension surface of the outer wall of the box body, so that the outer wall of the box body can fit with the outer wall or the wall of the cabinet in the installation environment, so that the refrigerator can be embedded in the wall or the cabinet, and ensure that the door body can be opened freely without touching the wall or the cabinet, saving space. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0032] Figure 1 A schematic top view of a refrigerator door in an open state according to some embodiments of the present disclosure;

[0033] Figure 2 is a schematic cross-sectional view of a refrigerator door in an open state according to some embodiments of the present disclosure;

[0034] Figure 3 A first schematic diagram of a first slot and a second slot of a door body in a closed state according to some embodiments of the present disclosure;

[0035] Figure 4 A second schematic diagram of the first slot and the second slot of the door body in a closed state according to some embodiments of the present disclosure;

[0036] Figure 5 This is a schematic diagram of an open state of a door body when the first shaft is in a first arc segment and the second shaft moves in a second arc segment according to some embodiments of the present disclosure;

[0037] Figure 6 A schematic diagram of a door body opened to a first angle according to some embodiments of the present disclosure;

[0038] Figure 7 A schematic diagram of a door body according to some embodiments of the present disclosure during the process of opening from a first angle to a second angle;

[0039] Figure 8 A schematic diagram of a door body opened to a second angle according to some embodiments of the present disclosure;

[0040] Figure 9 A schematic diagram of a door body according to some embodiments of the present disclosure during the process of opening from a second angle to a third angle;

[0041] Figure 10 A schematic diagram of a door opened to a fourth angle according to some embodiments of the present disclosure;

[0042] Figure 11 This is a schematic diagram of the door body opening to the fifth angle according to some embodiments of the present disclosure.

[0043] The reference numerals in the accompanying drawings are described as follows:

[0044] 1- box body; 11- outer side wall; 12- extension surface;

[0045] 2-door body; 21-first side wall; 22-second side wall;

[0046] 3-first connecting member; 31-first shaft; 32-second shaft;

[0047] 4-second connecting member; 41-first slot; 411-first arc segment; 412-first straight segment; 42-second slot; 421-second arc segment; 422-second straight segment;

[0048] P-coincidence point; A-first boundary surface; B-second boundary surface; X-first distance.

[0049] It should be understood that the size of each part shown in the drawings is not drawn according to the actual proportional relationship.In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0050] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure, its application, or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions, and numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0051] The terms "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The terms "include" or "comprises" and similar terms mean that the elements before the term include the elements listed after the term, and do not exclude the possibility of also including other elements. The terms "upper", "lower", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] In the present disclosure, when a specific device is described as being located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When a specific device is described as being connected to another device, the specific device may be directly connected to the other device without an intervening device, or may be not directly connected to the other device but with an intervening device.

[0053] All terms (including technical or scientific terms) used in this disclosure have the same meaning as those understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined herein.

[0054] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0055] Figure 1 Schematic diagram of the structure of some embodiments of the refrigerator according to the present disclosure. Figure 1 In some embodiments, the refrigerator includes a cabinet 1 , a door 2 , a first connecting member 3 , and a second connecting member 4 .

[0056] The box body 1 includes an outer side wall 11 .

[0057] When the refrigerator is placed normally, the top of the box body 1 is the top wall, the bottom is the bottom wall, the front is the front wall, the back is the back wall, and the left and right sides are both outer walls. The outer wall 11 described in the embodiment of the present disclosure refers to Figure 1 The refrigerator is provided with a take-out opening on the front wall of the box body 1, and the door body 2 is provided on the front wall of the box body 1 for opening or closing the take-out opening.

[0058] The door 2 is provided on the box body 1 and includes a first side wall 21 and a second side wall 22 arranged opposite to each other. When the door 2 is closed, the first side wall 21 is located on the extension surface 12 of one of the outer side walls 11, and the door 2 is configured to open relative to the box body 1 from the second side wall 22. For example: Figure 1 The left door in the middle.

[0059] Alternatively, when the door body 2 is closed, the second side wall 22 is located on the extension surface 12 of one of the outer side walls 11, and the door body 2 is configured to open relative to the box body 1 from the first side wall 21. For example: right-opening door.

[0060] The side of the door body 2 adjacent to the front wall of the box body 1 is the rear side wall, and the side opposite to the rear side wall is the front side wall. The door body 2 also includes a top wall and a bottom wall, as well as a first side wall 21 and a second side wall 22 on the left and right sides. The distance between the top wall and the bottom wall of the door body 2 is the height of the door body 2, the distance between the first side wall 21 and the second side wall 22 of the door body 2 is the width of the door body 2, and the distance between the front side wall and the rear side wall of the door body 2 is the width W of the door body 2.

[0061] refer to Figure 2 The first connecting member 3 is provided on one of the box body 1 and the door body 2, and the first connecting member 3 includes a first shaft 31 and a second shaft 32. The second connecting member 4 is provided on the other of the box body 1 and the door body 2, and the second connecting member 4 is provided with a first groove 41 and a second groove 42, which respectively accommodate the first shaft 31 and the second shaft 32 in a one-to-one correspondence.

[0062] The first groove 41 and the second groove 42 are configured to guide and limit the relative movement trajectory of the first axis 31 and the second axis 32 one by one during the opening of the door body 2 relative to the box body 1, so that the hinge axis of the door body 2 moves toward the inner side of the extension surface 12.

[0063] During the opening process of the door body 2, the hinge axis of the door body 2 moves toward the inner side of the extension surface 12, and the position of the hinge axis of the door body 2 is variable, so that during the opening process of the door body 2, the first edge line where the front side wall of the door body 2 intersects with the first side wall 21 and the second edge line where the rear side wall of the door body 2 intersects with the first side wall 21 do not exceed the extension surface 12 of the outer wall 11 of the box body 1, thereby reducing the reserved space required for opening and closing the door on the side of the box body 1, so that the door body 2 can be opened better.

[0064] The extended surface 12 of the outer side wall 11 of the box body 1 serves as the first boundary surface A when the door body 2 is opened or closed. When the door body 2 is in the closed state, the surface on which the second side wall 22 of the door body 2 is located serves as the second boundary surface B of the door body 2. When the door body 2 is opened or closed, the first ridge line where the front side wall of the door body 2 intersects with the first side wall 21 and the second ridge line where the rear side wall of the door body 2 intersects with the first side wall 21 do not exceed the first boundary surface A of the box body 1. The third ridge line where the front side wall of the door body 2 intersects with the second side wall 22 and the fourth ridge line where the rear side wall of the door body 2 intersects with the second side wall 22 do not exceed the second boundary surface B of the box body 1.

[0065] In the embodiment of the present disclosure, the relative motion between the first shaft 31 and the first slot 41 includes the case where the first shaft 31 moves while the first slot 41 is stationary, and also includes the case where the first slot 41 moves while the first shaft 31 is stationary. The relative motion between the second shaft 32 and the second slot 42 includes the case where the second shaft 32 moves while the second slot 42 is stationary, and also includes the case where the second slot 42 moves while the second shaft 32 is stationary.

[0066] In some embodiments, when the door body 2 is in the closed state, the first end of the first groove 41 extends to the second end of the first groove 41 along the direction close to the box body 1 and the extension surface 12, and the first end of the second groove 42 extends to the second end of the second groove 42 along the direction close to the box body 1 and the extension surface 12.

[0067] Under normal circumstances, the door body 2 rotates around the hinge axis of the door body when it is opened and closed. In some related technologies, the hinge axis of the door body 2 is fixed, so that part of the door body 2 will exceed the boundary surface on both sides of the door body 2 when it is opened and closed.

[0068] Based on this, in the embodiment of the present disclosure, the first end of the first groove 41 extends to the second end of the first groove 31 along the direction close to the box body 1 and the extension surface 12, and the first end of the second groove 42 extends to the second end of the second groove 42 along the direction close to the box body 1 and the extension surface 12. The first groove 41 guides and limits the relative movement trajectory of the first shaft 31 during the process of opening or closing the door body 2 relative to the box body 1; the second groove 42 guides and limits the relative movement trajectory of the second shaft 32 during the process of opening or closing the door body 2 relative to the box body 1; it can enable the door body to rotate relative to the axis of rotation during the opening process. The line moves inwardly toward the extension surface, enabling the refrigerator door to be opened and closed at a large angle as a whole. Furthermore, when opening and closing the door, the first ridge line where the front side wall of the door body 2 intersects with the first side wall 21, and the second ridge line where the rear side wall of the door body 2 intersects with the first side wall 21, do not exceed the extension surface 12 of the outer wall 11 of the cabinet 1. The outer wall 11 of the cabinet 1 can fit in with the exterior wall or cabinet wall in the installation environment without leaving space to prevent interference with the door body 2. This allows the refrigerator to be embedded in the wall or cabinet, and ensures that the door body 2 can be opened freely without touching the wall or cabinet, saving space. At the same time, it can also achieve a flush embedding function, providing technical support for the research and development of built-in refrigerators.

[0069] refer to Figure 3 In some embodiments, when the door body 2 is closed, the first end of the first groove 41 is close to the extension surface 12 relative to the first end of the second groove 42 .

[0070] In some embodiments, the distance between the first end of the first groove 41 and the first end of the second groove 42 and the extension surface 12 ranges from (1 / 3 to 2 / 3)W, where W is the thickness of the door body 2 .

[0071] refer to Figure 5 and Figure 6 In some embodiments, the first slot 41 includes a first arc segment 411 and a first straight segment 412 , and the second slot 42 includes a second arc segment 421 and a second straight segment 422 .

[0072] In some embodiments, the first axis 31 is configured to move first relative to the first arc segment 411 and then relative to the first straight line segment 412 when the door body 2 moves from closing to opening; the second axis 32 is configured to move first relative to the second arc segment 421 and then relative to the second straight line segment 422 when the door body 2 moves from closing to opening.

[0073] refer to Figure 3 and Figure 4 In some embodiments, when the door body 2 is in the closed state, the first axis 31 is located at the end of the first arc segment 411 away from the first straight segment 412 , and the second axis 32 is located at the end of the second arc segment 421 away from the second straight segment 422 .

[0074] In some embodiments, the center of the first arc segment 411 coincides with the center of the second arc segment 421 .

[0075] In some embodiments, the coincidence point P between the center of the first arc segment 411 and the center of the second arc segment 421 is located on the extension surface 12 , and the distance between the coincidence point P and the door body 2 is 0 to 15 mm.

[0076] In some embodiments, the radius of the first arc segment 411 is R1, the radius of the second arc segment 421 is R2, and R2=(1 / 5-1 / 3)R1+R1.

[0077] In some embodiments, the central angle range of the first arc segment 411 and the central angle range of the second arc segment 421 are both 8° to 12°.

[0078] In some embodiments, the central angle of the first arc segment 411 is the same as the central angle of the second arc segment 421 .

[0079] In some embodiments, when the first axis 31 moves relative to the first arc segment 411 and the second axis 32 moves relative to the second arc segment 421, the hinge axis of the door body 2 is located in a first position; when the first axis 31 moves relative to the first straight segment 412 and the second axis 32 moves relative to the second straight segment 422, the hinge axis of the door body 2 is located in a second position, and the second position is away from the extension surface 12 relative to the first position.

[0080] In some embodiments, by designing a virtual hinge axis, the hinge axis can change within a reasonable range when the refrigerator door is opened and closed, so that the refrigerator door can be opened and closed at a large angle, and the maximum opening angle is greater than 90°; and it is ensured that each point on the door body 2 does not interfere with the wall or cabinet.

[0081] In some embodiments, the center of the first arc segment 411 coincides with the center of the second arc segment 421, the coincidence point P is located on the extension surface 12, the distance between the coincidence point P and the door body 2 is the first distance X, and the position of the hinge axis does not exceed the circular area formed with the coincidence point P as the center and the first distance X as the radius.

[0082] In some embodiments, a first end of the first straight line segment 412 is connected to the first arc segment 411 , and when the door body 2 is closed, a second end of the first straight line segment 412 extends toward the extension surface 12 .

[0083] In some embodiments, when the door body 2 is closed, the first straight line segment 412 extends horizontally or extends obliquely toward the box body 1 .

[0084] In some embodiments, the first end of the second straight segment 422 is connected to the second arc segment 421 , and when the door 2 is closed, the second end of the second straight segment 422 extends obliquely toward the extension surface 12 and the box body 1 .

[0085] In some embodiments, the angle between the second straight line segment 422 and the horizontal line ranges from 35° to 40°, or the angle between the line formed by the first end and the second end of the second arc segment 421 and the second straight line segment 422 ranges from 145° to 150°.

[0086] refer to Figure 6 In some embodiments, the second end of the first arc segment 411 is connected to the first end of the first straight line segment 412, and the second end of the second arc segment 421 is connected to the first end of the second straight line segment 422; when the door body 2 is opened to the first angle, the first axis 31 is located at the connection between the first straight line segment 412 and the first arc segment 411, and the second axis 32 is located at the intersection of the second straight line segment 422 and the second arc segment 421.

[0087] The opening angle of the door body 2 is related to the design parameters of the trajectory line. After the trajectory line is determined, the door can only open to the corresponding angle. In some embodiments, the first angle range is approximately 30° to 70°.

[0088] In some embodiments, the extension length of the first straight segment 412 is less than the extension length of the second straight segment 422 .

[0089] refer to Figure 8 In some embodiments, when the door body 2 is opened to the second angle, the first axis 31 is located at the second end of the first straight segment 412, and the second axis 32 is located between the first end and the second end of the second straight segment 422, and close to the second end of the second straight segment 422; the second angle is greater than the first angle.

[0090] In some embodiments, the second angle is approximately 70°.

[0091] In some embodiments, when the door body 2 opens from the second angle to the third angle, the first shaft 31 rotates at the second end of the first straight segment 412, and the second shaft 32 continues to move toward the second end close to the second straight segment 422; the third angle is greater than the second angle.

[0092] In some embodiments, when the door body 2 is opened to a third angle, the first axis 31 is located at the second end of the first straight line segment 412 and is ready to move from the second end of the first straight line segment 412 to the first end of the first straight line segment 412, and the second axis 32 is located between the first end and the second end of the second straight line segment 422.

[0093] refer to Figure 9In some embodiments, during the process of the door body 2 opening from the third angle to the fourth angle, the first shaft 31 moves from the second end of the first straight line segment 412 to the first end of the first straight line segment 412, and the second shaft 32 continues to move toward the second end close to the second straight line segment 422; the fourth angle is greater than the third angle.

[0094] refer to Figure 10 In some embodiments, when the door body 2 is opened to the fourth angle, the first axis 31 is located between the second end and the first end of the first straight segment 412 , and the second axis 32 is located at the second end of the second straight segment 422 .

[0095] In some embodiments, the fourth angle ranges from 90° to 120°.

[0096] refer to Figure 11 In some embodiments, when the door body 2 is opened to the fifth angle, the first axis 31 is located at the connection between the first straight line segment 412 and the first arc segment 411, and the second axis 32 is located between the second end and the first end of the second straight line segment 422. The fifth angle is the maximum opening angle of the door body 2.

[0097] In some embodiments, the fifth angle is approximately 120°.

[0098] In some embodiments, a recess is provided at the top of the door body 2, and one of the first connecting member 3 and the second connecting member 4 is provided in the recess and does not protrude from the door body 2. The hidden hinge is provided to improve the consistency of the appearance.

[0099] The first groove 41 and the second groove 42 provided in the embodiment of the present invention respectively guide and limit the relative movement trajectory of the first axis 31 and the second axis 32 one by one during the process of opening or closing the door body 2 relative to the box body 1, so that the hinge axis of the door body 2 changes. When the door body 2 is opened or closed, the position of the door body 2 around the hinge axis can be changed according to different opening and closing angles, ensuring that the first edge line where the front side wall of the door body 2 intersects with the first side wall 21 and the second edge line where the rear side wall of the door body 2 intersects with the first side wall 21 do not exceed the extension surface 12 of the outer wall 11 of the box body 1, providing technical support for the development and application of built-in refrigerators.

[0100] The trajectory and position of the first and second axes 31, 32 in the disclosed embodiment can be flexibly adjusted to change the opening and closing angles and states of the door body 2. Furthermore, the trajectory of the first and second axes 31, 32 in the disclosed embodiment is designed with a point outside the door body 2 as a reference, but is not limited to this. Within a certain range outside the housing 1 and door body 2, with any point within this range as the axis, the first and second axes 31, 32 can rotate around any point within this range when the door body 2 is opened or closed to achieve "zero insertion."

[0101] The following is combined with Figures 1 to 11 Some specific embodiments of refrigerators are described in detail.

[0102] The refrigerator includes a cabinet 1, a door 2, a first connecting member 3 and a second connecting member 4. The extended surface 12 of the outer side wall 11 of the cabinet 1 serves as the first boundary surface A when the door 2 is opened or closed. When the door 2 is in the closed state, the surface on which the second side wall 22 of the door 2 is located serves as the second boundary surface B of the door 2. When the door 2 is opened or closed, the first ridge line where the front side wall of the door 2 intersects with the first side wall 21 and the second ridge line where the rear side wall of the door 2 intersects with the first side wall 21 do not exceed the first boundary surface A of the cabinet 1. The third ridge line where the front side wall of the door 2 intersects with the second side wall 22 and the fourth ridge line where the rear side wall of the door 2 intersects with the second side wall 22 do not exceed the second boundary surface B of the cabinet 1.

[0103] In the embodiment of the present disclosure, the relative motion between the first shaft 31 and the first slot 41 includes the case where the first shaft 31 moves while the first slot 41 is stationary, and also includes the case where the first slot 41 moves while the first shaft 31 is stationary. The relative motion between the second shaft 32 and the second slot 42 includes the case where the second shaft 32 moves while the second slot 42 is stationary, and also includes the case where the second slot 42 moves while the second shaft 32 is stationary.

[0104] Optionally, the first connecting member 3 is provided on the box body 1, and the position of the first connecting member 3 remains stationary. The second connecting member 4 is provided on the door body 2, and the second connecting member 4 rotates as the door body 2 rotates.

[0105] refer to Figure 3 and Figure 4 When the door body 2 is opened or closed, the running tracks of the first shaft 31 and the second shaft 32 generally include two parts. The first groove 41 and the second groove 42 both include two parts.

[0106] The first groove 41 includes a first arc segment 411 and a first straight segment 412. The first arc segment 411 is an arc, the center of which is located on the extension surface 12. The distance between the center of the first arc segment 411 and the door body 2 is 0 to 15 mm, which is the distance measured when the door body 2 is closed.

[0107] The distance between the center of the first arc segment 411 and the door body 2 is specifically related to the size of the refrigerator door body and the overall size of the refrigerator.

[0108] The first straight line segment 412 is linear and may or may not extend horizontally. The distance the first straight line segment 412 extends is approximately 5 mm to 15 mm. The distance the first straight line segment 412 extends is related to the distance between the door body 2 and the housing 1, and is also related to the selection of the center of the first arc segment 411.

[0109] The second groove 42 includes a second arc segment 421 and a second straight segment 422. When the door body 2 is closed, the center of the second arc segment 421 coincides with the center of the first arc segment 411. The coincidence point P is located on the extension surface 12, and the distance between the coincidence point P and the door body 2 is 0 to 15 mm.

[0110] The central angle of the first arc segment 411 is the same as the central angle of the second arc segment 421 .

[0111] The central angle range of the first arc segment 411 and the central angle range of the second arc segment 421 are both 8° to 12°.

[0112] The second straight line segment 422 is a straight line. The second straight line segment 422 is an inclined straight line, and the angle between the second straight line segment 422 and the horizontal line ranges from 35° to 40°. The angle between the line formed by the first and second ends of the second arc segment 421 and the second straight line segment 422 ranges from 145° to 150°. This is to move the door body 2 toward the center when it is opened, so that the outer edge of the door body 2 is away from the outer wall 11 of the box.

[0113] The connection between the two running tracks of the first shaft 31 and the second shaft 32 is a smooth arc segment.

[0114] The following is an analysis of the operating status of the first shaft 31 and the second shaft 32 during the door opening process. When the door is closed, the first shaft 31 and the second shaft 32 are both at their initial positions. Figure 3 .

[0115] refer to Figure 5 When the door body 2 is opened, a force is applied to the door body 2, causing the first shaft 31 to run along the first arc segment 411 and the second shaft 32 to run along the second arc segment 421. At this time, the running trajectories of the first shaft 31 and the second shaft 32 are arc-shaped, and they rotate in a circular motion around the coincident point P.

[0116] See also Figure 6 As the door opening angle increases, the first and second shafts 31, 32 rotate about the coincidence point P. When the door body 2 is opened to the first angle, the first shaft 31 is located at the junction of the first straight segment 412 and the first arc segment 411, and the second shaft 32 is located at the intersection of the second straight segment 422 and the second arc segment 421. At this point, the contact surface between the first and second shafts 31, 32 is the outermost left arc surface of the groove. The first angle range is approximately 30° to 70°.

[0117] refer to Figure 7When the door body continues to open, the first shaft 31 and the second shaft 32 enter their respective second running trajectories and begin to move in a straight line. Since the length of the straight running trajectory of the first shaft 31 is shorter than that of the second shaft 32, that is, the extension length of the first straight segment 412 is shorter than the extension length of the second straight segment 422. Therefore, when the first shaft 31 and the second shaft 32 slide in a straight line at the same time, the first shaft 31 first moves to the end point of the first straight segment 412, while the second shaft 32 continues to slide in a straight line in the second straight segment 422. At this time, the distance between the first shaft 31 and the second shaft 32 is the shortest. Figure 8 , at this time the door opening angle is about 70°.

[0118] As the door 2 continues to open, the second shaft 32, under the force, continues to slide linearly. At this point, the first shaft 31 is already at the end of the second straight segment 422 and, under the force, can only rotate in a circular motion. The distance between the first and second shafts 31, 32 gradually increases. When the second shaft 32 reaches a certain point, the first shaft 31, under the force of tension, reverses its linear motion along the first straight segment 412 of the first shaft 31. At this point, the door opening angle is approximately 70° to 90°.

[0119] refer to Figure 9 When the door body 2 continues to open and the door opening angle reaches 90 degrees, the first shaft 31 and the second shaft 32 both slide linearly on their respective second running trajectory lines.

[0120] refer to Figure 10 As the door 2 continues to open and the angle exceeds 90°, the first shaft 31 slides linearly in the reverse direction along its second trajectory, while the second shaft 32 slides linearly in the forward direction along its second trajectory. When the second shaft 32 reaches the end of the second straight segment 422, the first shaft 31 continues to slide in the reverse direction along the first straight segment 412. At this point, the door opening angle is approximately 90° to 120°.

[0121] refer to Figure 11 When the door opening angle reaches its maximum, the first shaft 31 reaches the intersection of its first and second trajectory lines and is located exactly on an arc. That is, the arc is concentric with the first shaft 31. Due to the resistance of the outer surface of the first shaft 31's first trajectory, the first shaft 31 is unable to rotate further. At this point, the door opening angle is at its maximum, and the second shaft 32, under tension, slides linearly in the opposite direction along its second trajectory. At this point, the door opening angle is approximately 120°.

[0122] The entire workflow of door closing is the opposite of the door opening process and will not be described here.

[0123] The first arc segment 411 is a first running trajectory line of the first shaft 31 , and the first straight segment 412 is a second running trajectory line of the first shaft 31 .

[0124] The second arc segment 421 is a first running trajectory line of the second shaft 32 , and the second straight segment 422 is a second running trajectory line of the second shaft 32 .

[0125] refer to Figure 3 and Figure 4 The virtual rotation axes of the initial positions of the first axis 31 and the second axis 32 pass through the coincidence point P, which is located at a certain point outside the door body 2 and is at a first distance X from the door body 2. The value range of the first distance X is 0 to 10 mm.

[0126] The range of the first distance X is related to the position of the axis. Select the extension line connecting the outermost edges of the door and cabinet, choose a circle with a center of 0 and a radius of X. The radius range is 0 to 10 mm. The embedded hinge function can be achieved within this range of the rotation axis. As long as the rotation axis is within this circle, the position of the first axis 31 and the second axis 32 can be flexibly adjusted to achieve variable track operation and zero-gap embedding of the hinge.

[0127] When the door opening and closing angle is between 0 and 90 degrees, no part of the door body will exceed the boundary surfaces on both sides of the box body. In addition, in actual production, the corners of the door body can be appropriately rounded to further increase the distance between the door body and the boundary surface.

[0128] Compared with existing built-in refrigerators and their hinge mechanisms, the refrigerator provided by the embodiment of the present disclosure has a larger door opening angle. When the door opening and closing angle is greater than 90°, a portion of the door body will exceed the boundary surface of the cabinet. However, since the refrigerator is embedded, the entire cabinet is embedded in the wall or cabinet. When the door body is closed, the outer surface of the door body is flush with the outer surface of the wall or cabinet. When the door opening angle is maximum, although a portion of the door body exceeds the boundary surface, the distance between the door body and the wall or cabinet at the closest point is still greater than 0mm, so the large-angle door opening and closing function can be realized without interfering with the wall or cabinet. Therefore, the design is reasonable and meets the embedded function.

[0129] In summary, the hinged structure of the door body and the box body provided in the embodiment of the present disclosure can realize the "zero embedding" function of the refrigerator as a whole and the box body or cabinet body; the refrigerator as a whole can realize both the zero embedding function and the flat embedding function; the opening angle of the refrigerator door body is greater than 90°, and does not interfere with the wall or cabinet body.

[0130] The refrigerator in the embodiment of the present disclosure includes a single-door refrigerator or a double-door refrigerator.

[0131] Based on the above-mentioned embodiments of the present disclosure, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0132] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A refrigerator, characterized in that: include: The box body (1) includes an outer side wall (11); A door body (2) is provided on the box body (1), the door body (2) comprises a first side wall (21) and a second side wall (22) arranged opposite to each other, when the door body (2) is in a closed state, the first side wall (21) is located on an extension surface (12) of the outer side wall (11), and the door body (2) is configured to open relative to the box body (1) from the second side wall (22); A first connecting member (3) is provided on one of the box body (1) and the door body (2), wherein the first connecting member (3) comprises a first shaft (31) and a second shaft (32); and A second connecting member (4) is provided on the other of the box body (1) and the door body (2), and a first groove (41) and a second groove (42) are provided on the second connecting member (4), and the first groove (41) and the second groove (42) respectively accommodate the first shaft (31) and the second shaft (32) in a one-to-one correspondence; when the door body (2) is in a closed state, the first end of the first groove (41) extends to the second end of the first groove (41) along a direction close to the box body (1) and the extension surface (12), and the first end of the second groove (42) extends to the second end of the second groove (42) along a direction close to the box body (1) and the extension surface (12); The first groove (41) includes a first arc segment (411) and a first straight segment (412), and the second groove (42) includes a second arc segment (421) and a second straight segment (422).

2. The refrigerator according to claim 1, wherein The first axis (31) is configured to first move relative to the first arc segment (411) and then move relative to the first straight segment (412) when the door body (2) is closed to open; the second axis (32) is configured to first move relative to the second arc segment (421) and then move relative to the second straight segment (422) when the door body (2) is closed to open.

3. The refrigerator according to claim 1, wherein When the door body (2) is in a closed state, the first axis (31) is located at an end of the first arc segment (411) away from the first straight segment (412), and the second axis (32) is located at an end of the second arc segment (421) away from the second straight segment (422).

4. The refrigerator according to claim 1, wherein The center of the first arc segment (411) coincides with the center of the second arc segment (421).

5. The refrigerator according to claim 4, wherein: The coincidence point (P) between the center of the first arc segment (411) and the center of the second arc segment (421) is located on the extension surface (12), and the distance between the coincidence point (P) and the door body (2) is 0 to 15 mm.

6. The refrigerator according to claim 4, wherein: The radius of the first arc segment (411) is R1, and the radius of the second arc segment (421) is R2, where R2=(1 / 5-1 / 3)R1+R1.

7. The refrigerator according to claim 4, wherein: The central angle range of the first arc segment (411) and the central angle range of the second arc segment (421) are both 8° to 12°.

8. The refrigerator according to claim 1, wherein When the first axis (31) moves relative to the first arc segment (411) and the second axis (32) moves relative to the second arc segment (421), the hinge axis of the door body (2) is located at a first position; when the first axis (31) moves relative to the first straight segment (412) and the second axis (32) moves relative to the second straight segment (422), the hinge axis of the door body (2) is located at a second position, and the second position is away from the extension surface (12) relative to the first position.

9. The refrigerator according to claim 8, wherein The center of the first arc segment (411) coincides with the center of the second arc segment (421), the coincidence point (P) is located on the extension surface (12), the distance between the coincidence point (P) and the door body (2) is a first distance (X), and the position of the hinge axis does not exceed a circular area formed with the coincidence point (P) as the center and the first distance (X) as the radius.

10. The refrigerator according to claim 1, wherein The first end of the first straight line segment (412) is connected to the first arc segment (411), and when the door body (2) is closed, the second end of the first straight line segment (412) extends in a direction close to the extension surface (12).

11. The refrigerator according to claim 10, wherein When the door body (2) is in a closed state, the first straight line segment (412) extends horizontally or extends obliquely toward the box body (1).

12. The refrigerator according to claim 1, wherein The first end of the second straight line segment (422) is connected to the second arc segment (421), and when the door body (2) is closed, the second end of the second straight line segment (422) extends obliquely toward the extension surface (12) and toward the box body (1).

13. The refrigerator according to claim 12, wherein The angle between the second straight line segment (422) and the horizontal line is in the range of 35° to 40°, or the angle between the line formed by the first end and the second end of the second arc segment (421) and the second straight line segment (422) is in the range of 145° to 150°.

14. The refrigerator according to claim 2, wherein The second end of the first arc segment (411) is connected to the first end of the first straight segment (412), and the second end of the second arc segment (421) is connected to the first end of the second straight segment (422); when the door body (2) is opened to a first angle, the first axis (31) is located at the connection between the first straight segment (412) and the first arc segment (411), and the second axis (32) is located at the intersection of the second straight segment (422) and the second arc segment (421).

15. The refrigerator according to claim 14, wherein When the door body (2) is opened to a second angle, the first axis (31) is located at the second end of the first straight segment (412), and the second axis (32) is located between the first end and the second end of the second straight segment (422); the second angle is greater than the first angle.

16. The refrigerator according to claim 15, wherein During the process of the door body (2) opening from the second angle to the third angle, the first shaft (31) rotates at the second end of the first straight segment (412), and the second shaft (32) continues to move toward the second end of the second straight segment (422); the third angle is greater than the second angle.

17. The refrigerator according to claim 16, wherein During the process of the door body (2) opening from the third angle to the fourth angle, the first shaft (31) moves from the second end of the first straight segment (412) to the first end of the first straight segment (412), and the second shaft (32) continues to move toward the second end of the second straight segment (422); the fourth angle is greater than the third angle.

18. The refrigerator according to claim 17, wherein When the door body (2) is opened to the fourth angle, the first axis (31) is located between the second end and the first end of the first straight segment (412), and the second axis (32) is located at the second end of the second straight segment (422).

19. The refrigerator according to claim 18, wherein When the door body (2) is opened to a fifth angle, the first axis (31) is located at the connection between the first straight line segment (412) and the first arc segment (411), and the second axis (32) is located between the second end and the first end of the second straight line segment (422). The fifth angle is the maximum opening angle of the door body (2).

20. The refrigerator according to any one of claims 1 to 19, characterized in that: When the door body (2) is closed, the first end of the first groove (41) is close to the extension surface (12) relative to the first end of the second groove (42); the distance between the first end of the first groove (41) and the first end of the second groove (42) and the extension surface (12) is in the range of (1 / 3 to 2 / 3)W, where W is the thickness of the door body (2).

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