Refrigeration equipment

Abstract

The refrigeration equipment comprises a main body and a door body, and the door body comprises a side wall and a front wall; the hinge assembly comprises a first hinge piece and a second hinge piece, the first hinge piece is provided with a first shaft and a second shaft, the second hinge piece comprises a first groove and a second groove which are communicated with each other, the first shaft is in sliding fit with the first groove, and the second shaft is in sliding fit with the second groove; the first groove is provided with a first end point, a first inflection point and a second end point; the second groove is provided with a third end point, a second inflection point and a fourth end point; when the door body is in a 90-degree opening state, the first shaft is located between the first end point and the first inflection point. The hinge assembly of the refrigeration equipment is compact in layout and small in occupied space, a door body of the embedded refrigeration equipment can be smoothly opened, and the door body can be thinner.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigeration equipment, and in particular relates to a refrigeration equipment. Background Art

[0002] With the development of society and the gradual improvement of people's quality of life, people's demand for aesthetically pleasing installation of household refrigeration equipment has become increasingly prominent. Embedding refrigeration equipment into cabinets, that is, forming embedded refrigeration equipment to achieve a unified home decoration style, has become popular.

[0003] However, in the related art, embedded refrigeration equipment generally uses double-axis double-slot hinges to ensure that the door can be opened smoothly. However, the double-axis double-slot hinge structure is complex and occupies a large space. It is difficult to configure it on thin-specification doors or over-molded doors, which limits the thickness specifications of the door to a certain extent. Summary of the Invention

[0004] The present application provides a refrigeration device, which aims to at least to some extent solve the technical problem of large space occupied by the double-axis double-slot hinge on the refrigeration device.

[0005] In one aspect of an embodiment of the present application, a refrigeration device is provided, comprising:

[0006] A main body and a door body, wherein the door body includes side walls and a front wall arranged at an angle;

[0007] The hinge assembly includes a first hinge member and a second hinge member, wherein the first hinge member is provided with a first shaft and a second shaft, and the second hinge member includes a first groove and a second groove that are connected to each other, the first shaft is slidably engaged with the first groove, and the second shaft is slidably engaged with the second groove, the first hinge member is mounted on the main body, and the second hinge member is mounted on the door body;

[0008] The first groove has a first endpoint, a first inflection point, and a second endpoint; the distances from the first endpoint and the second endpoint to the front wall are both shorter than the distance from the first inflection point to the front wall; the distance from one of the first endpoint and the second endpoint to the side wall is shorter than the distance from the first inflection point to the side wall, and the distance from the other endpoint to the side wall is longer than the distance from the first inflection point to the side wall;

[0009] The second groove has a third endpoint, a second inflection point, and a fourth endpoint, wherein the distances from the third endpoint and the fourth endpoint to the front wall are both shorter than the distance from the second inflection point to the front wall, and the distance from one of the third endpoint and the fourth endpoint to the side wall is shorter than the distance from the second inflection point to the side wall, and the distance from the other endpoint to the side wall is longer than the distance from the second inflection point to the side wall;

[0010] Wherein, when the door body is in a state of being opened at 90 degrees, the first axis is located between the first end point and the first inflection point.

[0011] In some embodiments, in the thickness direction of the door body, the overall width range of the first groove and the second groove is 20 mm to 30 mm, the overall distance of the first groove and the second groove body to the front wall is greater than or equal to 6 mm, and the overall distance of the first groove and the second groove body to the side wall is greater than or equal to 4 mm.

[0012] In some embodiments, the angle between the first inflection point and the line connecting the first endpoint and the second endpoint ranges from 100 degrees to 120 degrees, and the angle between the second inflection point and the line connecting the third endpoint and the fourth endpoint ranges from 90 degrees to 110 degrees.

[0013] In some embodiments, when the door body is opened to an opening angle of 90 degrees, the angle between the tangent of the movement trajectory of the first axis relative to the first slot and the front wall is in the range of -25 degrees to -45 degrees.

[0014] In some embodiments, when the door body is opened to an opening angle of 90 degrees, the angle between the tangent of the movement trajectory of the second axis relative to the second slot and the front wall is in the range of 5 degrees to 25 degrees.

[0015] In some embodiments, when the door body is at an opening angle of 90 degrees, the angle between the axis of the first axis and the axis of the second axis and the front wall of the door body is -75 degrees to -45 degrees.

[0016] In some embodiments, when the door body is opened to 90 degrees, the angle between the tangent of the moving trajectory of the first axis relative to the first slot and the tangent of the moving trajectory of the second axis relative to the second slot is in the range of 30 degrees to 70 degrees.

[0017] In some embodiments, when the door body is open at 90 degrees, the distance between the axis center of the first axis and the axis center of the second axis in the thickness direction of the door body is 5mm to 15mm, and the distance between the axis center of the first axis and the axis center of the second axis in the width direction of the door body is 5mm to 15mm.

[0018] In some embodiments, when the door body is at an opening angle of 90 degrees, the distance between the door body and the main body is 5 mm to 35 mm.

[0019] In some embodiments, when the door body is open at 90 degrees, the distance between the axis center of the first axis and the front wall is 12mm~22mm, the distance between the axis center of the first axis and the side wall is 9mm~19mm, the distance between the axis center of the second axis and the front wall is 28mm~38mm, and the distance between the axis center of the second axis and the side wall is 17mm~27mm.

[0020] The embodiments of the present application have at least the following beneficial effects:

[0021] The refrigeration equipment provided in the embodiment of the present application adopts a double-axis double-slot hinge to connect the door body and the main body, supporting the deflection of the door body relative to the main body to realize the opening and closing function of the refrigeration equipment; the double-axis double-slot hinge is provided with a first axis and a first slot and a second axis and a second slot that are slidably matched to realize the movement of the door body toward the inside of the main body, limit the amount of the door body exceeding the box, and thus meet the embedded installation requirements. An inflection point is respectively set between the two end points of the first slot and the second slot, wherein the two end points of the first slot and the second slot are close to the front wall of the door body, the inflection point is respectively away from the front wall relative to the two end points, and the distance from the inflection point to the side wall is between the distance from the two end points to the side wall, so that the first slot and the second slot form an arched slot with the slot opening facing the front wall, so that the first axis and the second axis move in the direction away from the front wall and then closer to the front wall, obtaining a longer slot length in a limited area, and thus enabling the first axis and the second axis to form a longer trajectory in the first slot and the second slot, thereby obtaining a larger door body deflection angle to a certain extent and expanding the door body opening. Accordingly, when the door opening is the same, the width specifications of the arched first groove and the second groove are reduced, so that the width of the first groove and the second groove in the direction of the door thickness is correspondingly reduced, and the required installation space is also smaller, which can adapt to the installation requirements of thin or ultra-thin door bodies; on the other hand, the thickness of the door body can also be made thinner. Specifically, when the door body is at a 90-degree opening, the first axis is located between the first end point and the first inflection point, and the distance between the axis center of the first axis and the front wall is 12mm to 22mm, the distance between the axis center of the first axis and the side wall is 17mm to 27mm, the distance between the axis center of the second axis and the front wall is 25mm to 35mm, and the distance between the axis center of the second axis and the side wall is 13mm to 23mm, thereby being able to take into account the assembly application on thin and ultra-thin door bodies and a large door opening angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic structural diagram of a refrigeration device in an embodiment of the present application is shown;

[0024] Figure 2 Shown Figure 1 A schematic structural diagram of a hinge assembly of a refrigeration device;

[0025] Figure 3 Shown Figure 2 A schematic structural diagram of the first hinge member of the hinge assembly;

[0026] Figure 4 Shown Figure 2 A schematic diagram of the matching structure of the first axis, the second axis, the first slot and the second slot of the hinge assembly;

[0027] Figure 5 Shown Figure 2 A schematic diagram of the arrangement of various points of the first slot and the second slot in the second hinge member of the hinge assembly;

[0028] Figure 6 Shown Figure 2 A schematic diagram of the arrangement of the groove sections of the first groove and the second groove in the second hinge member of the hinge assembly;

[0029] Figure 7 Shown Figure 1 A schematic diagram of the positions of the first axis and the second axis when the door of the refrigeration equipment is located at a first angle;

[0030] Figure 8 Shown Figure 1 A schematic diagram of the positions of the first axis and the second axis when the door of the refrigeration equipment is located at a second angle;

[0031] Figure 9 Shown Figure 1 A schematic diagram of the positions of the first and second axes of a refrigeration device with the door closed;

[0032] Figure 10 Shown Figure 1 A schematic diagram of the positions of the first and second axes of the door of the refrigeration equipment when the door is in a state of maximum over-box capacity;

[0033] Figure 11 Shown Figure 1 A schematic diagram of the positions of the first axis and the second axis when the door of the refrigeration equipment is in a 90-degree opening state;

[0034] Figure 12 Shown Figure 1 A schematic diagram of the positions of the first axis and the second axis when the door of the refrigeration equipment is in a state of maximum opening;

[0035] Figure 13 Shown Figure 1 Schematic diagram of the angle between the first axis and the second axis and the front wall when the door of the refrigeration equipment is closed;

[0036] Figure 14 Shown Figure 1 Schematic diagram of the angle between the first axis and the second axis and the front wall when the door of the refrigeration equipment is in a state of maximum over-box capacity;

[0037] Figure 15 A schematic diagram showing the angle between the first axis, the second axis and the front wall when the door is opened at 90 degrees;

[0038] Figure 16 Shown Figure 1 Schematic diagram of the angle between the first axis and the second axis and the front wall when the door of the refrigeration equipment is in the maximum opening state;

[0039] Figure 17 Shown Figure 1 A schematic diagram of the angle between the tangent line of the first axis and the second axis moving trajectory and the front wall when the door of the refrigeration equipment is opened;

[0040] Figure 18 Shown Figure 1 A schematic diagram of the angles between the tangents of the first and second axis moving trajectories and the front wall when the door of the refrigeration equipment is in a state of maximum over-box capacity;

[0041] Figure 19 Shown Figure 1 Schematic diagram of the angles between the tangent lines of the first and second axis movement trajectories and the front wall when the door of the refrigeration equipment is in a 90-degree opening state;

[0042] Figure 20 Shown Figure 1 A schematic diagram of the angles between the tangents of the first and second axis movement trajectories and the front wall when the door of the refrigeration equipment is in a maximum opening state;

[0043] Figure 21 Shown Figure 1 A schematic diagram of the distance between the first axis and the second axis in the thickness direction of the door body when the door body of the refrigeration equipment is closed;

[0044] Figure 22 Shown Figure 1 A schematic diagram of the distance between the first axis and the second axis in the door thickness direction when the door of the refrigeration equipment is in a state of maximum over-box capacity;

[0045] Figure 23 Shown Figure 1 Schematic diagram of the distance between the first axis and the second axis in the thickness direction of the door body when the door body of the refrigeration equipment is in a 90-degree opening state;

[0046] Figure 24 Shown Figure 1 A schematic diagram of the distance between the first axis and the second axis in the thickness direction of the door body when the door body of the refrigeration equipment is in a state of maximum opening;

[0047] Figure 25 Shown Figure 1 Schematic diagram of the distance between the door and the main body of the refrigeration equipment when the door is closed;

[0048] Figure 26 Shown Figure 1 Schematic diagram of the distance between the door and the main body of the refrigeration equipment when the door is in a state of maximum over-box capacity;

[0049] Figure 27 Shown Figure 1 Schematic diagram of the distance between the door and the main body of the refrigeration equipment when the door is in a 90-degree opening state;

[0050] Figure 28 Shown Figure 1 Schematic diagram of the distance between the door and the main body of the refrigeration equipment when the door is in the maximum opening state;

[0051] Figure 29 Shown Figure 1 A schematic diagram of the angles between the inflection points and endpoints of the first groove and the second groove of the hinge assembly of the refrigeration equipment;

[0052] Figure 30 Shown Figure 1 A schematic diagram of the positions of the end points of the first slot and the second slot of the hinge assembly of the refrigeration equipment;

[0053] Figure 31 Shown Figure 1 A schematic diagram of another groove section structure of the first groove and the second groove of the hinge assembly of the refrigeration equipment. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0055] In addition, this application may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0056] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0057] To achieve embedded installation of refrigeration equipment, a dual-axis dual-slot hinge is connected between the main body and the door. This forces the door to move inward from the main body during opening, limiting the amount the door protrudes outward from the main body. However, dual-axis dual-slot hinges, especially those with large slots on the door, require a large installation space, making them difficult to use on thin or ultra-thin doors and also limiting the door's thickness to a certain extent.

[0058] To this end, an embodiment of the present application provides a refrigeration device, which aims to solve the technical problem of the large size of the double-axis double-groove hinge to a certain extent, thereby reducing the size of the double-axis double-groove hinge, improving the application adaptability of the double-axis double-groove hinge on thin or ultra-thin door bodies, and taking into account the ability to open the door at a large angle.

[0059] Figure 1 A schematic structural diagram of a refrigeration device in an embodiment of the present application is shown; Figure 2 Shown Figure 1 A schematic structural diagram of a hinge assembly of a refrigeration device; Figure 3 Shown Figure 2 A schematic structural diagram of the first hinge member of the hinge assembly; Figure 4 Shown Figure 2 A schematic diagram of the matching structure of the first axis, the second axis, the first slot and the second slot of the hinge assembly; Figure 5 Shown Figure 2 A schematic diagram of the arrangement of various points of the first slot and the second slot in the second hinge member of the hinge assembly; Figure 6 Shown Figure 2 Schematic diagram of the arrangement of the groove sections of the first groove and the second groove in the second hinge member of the hinge assembly.

[0060] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6 In some embodiments, the refrigeration equipment may include a matching main body 11 and a door body 12, and a hinge assembly 2 may be provided between the door body 12 and the main body 11, and the hinge assembly 2 may be a connecting double-axis double-slot hinge, and the double-axis double-slot hinge may include a matching first hinge member 21 and a second hinge member 22, and the first hinge member 21 may be installed on the main body 11, and the second hinge member 22 may be installed on the door body 12, and the first hinge member 21 and the second hinge member 22 may be rotated relative to each other, so that when the door body 12 is opened and closed, the door body 12 can be deflected relative to the main body 11, blocking or exposing the box opening of the main body 11.

[0061] The door 12 is in a closed state, blocking the opening of the main body 11. The inner surface of the door 12 abuts against the front surface of the main body 11, sealing the main body 11. At this point, the angle between the door 12 and the main body 11 is 0 degrees, and the door opening is 0 degrees. The door 12 can be gradually rotated to widen the angle between the door 12 and the main body 11, i.e., to widen the opening, allowing the door to be opened. When the door 12 continues to deflect until the opening of the main body 11 is completely exposed, the opening is 90 degrees. The door 12 can be further rotated to widen the opening until it reaches its limit, i.e., its maximum opening. For example, the maximum opening of the door 12 can be 120 degrees, or even greater.

[0062] The door body 12 is a plate-like member having a front wall 121 and side walls 122. The front wall 121 is the side surface away from the main body 11, and the side walls are the circumferential side surfaces of the door body 12. The front wall 121 and the side walls 122 are adjacent and form an angle. The second hinge member 12 can be mounted on the top wall 123 of the door body 12, and the top wall 123 intersects with the front wall 121 and the side walls 122 respectively.

[0063] A first shaft 211 and a second shaft 212 are provided on the first hinge member 21, and a first groove 221 and a second groove 222 are provided on the second hinge member 22. The first shaft 211 can be slidably embedded in the first groove 221, and the second shaft can also be slidably embedded in the second groove 222. Therefore, when the door body 12 deflects relative to the main body 11, the first shaft 211 slides with the first groove 221, and the second shaft 212 slides with the second groove 222.

[0064] The first groove 221 has a first endpoint 221a, a first inflection point 221b and a second endpoint 221c. The first inflection point 221b can be set between the first endpoint 221a and the second endpoint 221c; and the distances from the first endpoint 221a and the second endpoint 221c to the front wall 121 are both smaller than the distance from the first inflection point 221b to the front wall 121, that is, the overall groove type of the first groove 221 is an arched groove, and the groove opening of the arched groove faces the front wall 121.

[0065] Taking the side wall 122 as a reference, the first endpoint 221a, the first inflection point 221b, and the second endpoint 221c have different distances from the side wall 122; and among the first endpoint 221a, the first inflection point 221b, and the second endpoint 221c, the distance between one of the first endpoint 221a and the second endpoint 221c and the side wall 122 is the largest, and the distance between the other endpoint and the side wall 122 is the smallest, and the distance between the first inflection point 221b and the side wall 122 is in the middle, neither the largest nor the smallest.

[0066] The second groove 222 has a third endpoint 222a, a second inflection point 222b and a fourth endpoint 222c. The second inflection point 222b can be set between the second endpoint 222a and the fourth endpoint 222c; and the distances from the third endpoint 222a and the fourth endpoint 222c to the front wall 121 are both smaller than the distance from the third inflection point 222b to the front wall 121, that is, the overall groove type of the second groove 222 is an arched groove, and the groove opening of the arched groove faces the front wall 121.

[0067] Taking the side wall 122 as a reference, the third endpoint 222a, the second inflection point 222b and the fourth endpoint 222c have different distances from the side wall 122; and among the third endpoint 222a, the first inflection point 222b and the fourth endpoint 222c, one of the third endpoint 222a and the fourth endpoint 222c has the largest distance from the side wall 122, and the other has the smallest distance from the side wall 122; the distance from the second inflection point 222b to the side wall 122 is in the middle, neither the largest nor the smallest.

[0068] That is to say, by forming an inflection point in the first groove 221 and the second groove 222, a bent groove shape is formed, and a longer groove body is obtained within a limited range, thereby being able to achieve a larger door body deflection angle and obtain a larger door opening angle; it is also possible to reduce the space occupied by the groove body while maintaining the overall groove length, thereby reducing the required installation space in the thickness direction of the door body 12 to adapt to the installation requirements of thin or even ultra-thin door bodies, that is, it can take into account both a large door opening angle and a smaller installation space to meet the function of realizing a large door opening angle on an ultra-thin door body.

[0069] Through the arched structure of the first groove 221 and the second groove 222, and by controlling the distance and position relationship between the first inflection point 221b and the second inflection point 222b relative to the two end points of the first groove 221 and the second groove 222 to the front wall 121 and the side wall 122, the overall width X of the first groove 221 and the second groove 222 in the thickness direction of the door body 12 can be controlled to be in the range of 20mm to 30mm, thereby adapting to the installation requirements of thin or ultra-thin door bodies and taking into account a large door opening angle.

[0070] The refrigeration equipment provided in the embodiment of the present application adopts a double-axis double-slot hinge to connect the door body and the main body, supporting the deflection of the door body relative to the main body to realize the opening and closing function of the refrigeration equipment; the double-axis double-slot hinge is provided with a first axis and a first slot and a second axis and a second slot that are slidably matched to realize the movement of the door body toward the inside of the main body, limit the amount of the door body exceeding the box, and thus meet the embedded installation requirements. An inflection point is respectively set between the two end points of the first slot and the second slot, wherein the two end points of the first slot and the second slot are close to the front wall of the door body, the inflection point is respectively away from the front wall relative to the two end points, and the distance from the inflection point to the side wall is between the distance from the two end points to the side wall, so that the first slot and the second slot form an arched slot with the slot opening facing the front wall, so that the first axis and the second axis move in the direction away from the front wall and then closer to the front wall, obtaining a longer slot length in a limited area, and thus enabling the first axis and the second axis to form a longer trajectory in the first slot and the second slot, thereby obtaining a larger door body deflection angle to a certain extent and expanding the door body opening. Accordingly, for the same door opening, the width specifications of the arched first and second grooves can be reduced, thereby reducing their width in the door thickness direction. This also reduces the required installation space and allows for installation in thin or ultra-thin doors. Furthermore, the door thickness can be made thinner. Specifically, the overall width X of the first and second grooves in the door thickness direction can be set to a range of 20mm to 30mm, allowing for assembly applications in thin and ultra-thin doors while also accommodating wide door opening angles.

[0071] In some embodiments, the overall width range of the first groove 221 and the second groove 222 may be 20mm to 30mm; for example, the overall width of the first groove 221 and the second groove 222 may be 20mm, 22mm, 24mm, 26mm, 28mm, 30mm or other values ​​within 20mm to 30mm, and no specific restrictions are made here.

[0072] In some embodiments, considering the inner and outer areas of the front wall 121 and the side wall 122 of the door body 12 or the provision of other components, the second hinge member 22 needs to maintain a certain distance from the front wall 121 and the side wall 122 to reduce the risk of interference.

[0073] A distance of at least 6 mm may be reserved between the front wall 121 and the first and second grooves 221 and 222 , that is, a distance L between the first and second grooves 221 and 222 and the front wall 121 may be greater than or equal to 6 mm.

[0074] A distance of at least 4 mm may be reserved between the side wall 122 and the first groove 221 and the second groove 222 , that is, a distance N from the first groove 221 and the second groove 222 to the side wall 122 may be greater than or equal to 4 mm.

[0075] In some embodiments, in order to limit the width specification of the second hinge 22 in the thickness direction of the door body, the width of the first groove 221 in the thickness direction of the door body 12 can be limited; and the arched groove opening of the first groove 221 can be set larger to make the first groove 221 flatter as a whole, thereby reducing the width of the first groove 221 in the thickness direction of the door body as a whole.

[0076] The angle between the first inflection point 221 b and the line connecting the first endpoint 221 a and the second endpoint 221 c may be set to an obtuse angle.

[0077] In some embodiments, in order to limit the width specification of the second hinge 22 in the opposite direction of the door body thickness, the width of the second groove 222 in the thickness direction of the door body 12 can be limited; and the arched groove opening of the second groove 222 can be set larger to make the second groove 222 flatter as a whole, thereby reducing the width of the second groove 221 in the door body direction as a whole.

[0078] The included angle between the second inflection point 222b and the line connecting the third endpoint 222a and the fourth endpoint 222c may be set to an obtuse angle.

[0079] Figure 29 Shown Figure 1 Schematic diagram of the angle between the inflection point and the end point of the first groove and the second groove of the hinge assembly of the refrigeration equipment. Figure 29 In some embodiments, the angle a1 between the first inflection point 221b and the line connecting the first endpoint 221a and the second endpoint 221c can be set to a value range of 100 degrees to 120 degrees. For example, the value of a1 can be 100 degrees, 105 degrees, 110 degrees, 115 degrees, 120 degrees, or other values ​​within the range of 100 degrees to 120 degrees, and is not specifically limited here.

[0080] The angle a2 between the second inflection point 222b and the line connecting the third endpoint 222a and the fourth endpoint 222c can be set to a value range of 90 degrees to 110 degrees. For example, the value of a2 can be 90 degrees, 95 degrees, 100 degrees, 105 degrees, 110 degrees, or other values ​​within the range of 90 degrees to 110 degrees, and is not specifically limited here.

[0081] In some embodiments, in order to take into account the large opening of the door body 12 and the small size of the first groove 221, the first groove 221 can be set in an arched shape so that during the sliding process of the first axis 211 and the first groove 221, the trajectory has a large angle turning, thereby allowing the door body to open wider.

[0082] The tangent of the moving trajectory of the first axis 211 relative to the first groove 221 between the first end point 221a and the first inflection point 221b can be made to form a first angle with the front wall 121, and the tangent of the moving trajectory of the first axis 211 relative to the first groove 221 between the first inflection point 221b and the second end point can be made to form a second angle with the front wall 122, and one of the first angle and the second angle is an obtuse angle, and the other is an acute angle.

[0083] The angle between the tangent line of the trajectory of the first axis 211 and the front wall 121 refers to the angle between the convex arc side of the trajectory and the front wall 121 .

[0084] In some embodiments, in order to take into account the large opening of the door body 12 and the small size of the second groove 222, the second groove 222 can be set in an arched shape so that the trajectory has a large angle turn during the sliding process of the second axis 212 and the second groove 222, thereby allowing the door body to open wider.

[0085] The tangent of the movement trajectory of the second axis 212 relative to the second groove 222 between the third endpoint 222a and the second inflection point 222b can be made to form a third angle with the front wall 121, and the tangent of the movement trajectory of the second axis 212 relative to the second groove 222 between the second inflection point 222b and the fourth endpoint can be made to form a fourth angle with the front wall 122, and one of the third angle and the fourth angle is an obtuse angle, and the other is an acute angle.

[0086] The angle between the tangent line of the trajectory of the second axis 212 and the front wall 121 refers to the angle between the convex arc side of the trajectory and the front wall 121 .

[0087] In some embodiments, the first groove 221 can be divided into two groove segments, namely a first circular arc groove segment 221d and a second circular arc groove segment 221e. The first circular arc groove segment 221d and the second circular arc groove segment 221e intersect at a first inflection point 221b, and the first endpoint 221a is located in the first circular arc groove segment 221d, and the second endpoint 221c is located in the second circular arc groove segment 221e.

[0088] During the opening process of the door body 12, the first shaft 211 moves along the first arc groove segment 221d to the first inflection point 221b, and enters the second arc groove segment 221e after passing the first inflection point 221b. During the relative movement of the first shaft 211 and the first groove 221, the trajectory of the first shaft 211 is two connected arcs.

[0089] In some embodiments, the second groove 222 can be divided into three sequentially connected groove segments, namely, a third circular arc groove segment 222d, a first elliptical arc groove segment 222e, and a first straight groove segment 222f. The second inflection point 222b can be located within the first straight groove segment 222f or the first elliptical arc groove segment 222e, the third endpoint 222a is located within the third circular arc groove segment 222d, and the fourth endpoint 222c is located within the first straight groove segment 222f.

[0090] During the opening process of the door body 12, the second shaft 212 and the second slot 222 move relative to each other, and the second shaft 212 moves along the third circular arc slot segment 222d, the first elliptical arc slot segment 222e and the first straight slot segment 222f.

[0091] See also Figure 29 In some embodiments, the first groove 221 and the second groove 222 are adjacently disposed on the second hinge member 22. The distance L1 between the first endpoint 221a of the first groove 221 and the front wall 121 can be set to a value ranging from 11.4 mm to 17.4 mm. For example, the value of L1 can be 11.4 mm, 13 mm, 15 mm, 17 mm, 17.4 mm, or other values ​​within the range of 11.4 mm to 17.4 mm, without specific limitation herein.

[0092] The distance L2 from the second endpoint 221c to the front wall 121 can be set to a range of 8.3mm to 14.3mm; for example, the value of L2 can be 8.3mm, 9mm, 11mm, 13mm, 14.3mm or other values ​​within 8.3mm to 14.3mm, and no specific restrictions are made here.

[0093] The distance N1 from the first endpoint 221a to the side wall 122 has a value range of 16.3 mm to 22.3 mm. For example, the value of N1 may be 16.3 mm, 17 mm, 19 mm, 21 mm, 22.3 mm, or other values ​​within the range of 16.3 mm to 22.3 mm, and no specific limitation is imposed here.

[0094] The distance N2 from the second endpoint 221c to the side wall 122 has a value range of 6 mm to 12.3 mm. For example, the value of N2 may be 6 mm, 7 mm, 9 mm, 11 mm, 12.3 mm or other values ​​within the range of 6 mm to 12.3 mm, and no specific limitation is imposed here.

[0095] The distance L3 from the third endpoint 222a of the second groove 222 to the front wall 121 can be set in the range of 7mm to 12mm; for example, the value of L3 can be 7mm, 9mm, 11mm, 12mm or other values ​​within 7mm to 12mm, and no specific limitation is made here.

[0096] The distance L4 from the fourth endpoint 222c to the front wall 121 has a value range of 21.7 mm to 27.7 mm; for example, the value of L4 can be 21.7 mm, 23 mm, 25 mm, 27 mm, 27.7 mm or other values ​​within 21.7 mm to 27.7 mm, and no specific restrictions are made here.

[0097] The distance N3 from the third endpoint 222a to the side wall 122 is set in the range of 30 mm to 36.7 mm; illustratively, the value of N3 can be 30 mm, 31 mm, 33 mm, 35 mm, 36.7 mm or other values ​​within 30 mm to 36.7 mm, and no specific limitation is made here.

[0098] The distance N4 from the fourth endpoint 222c to the side wall 122 has a value range of 4 mm to 9 mm. For example, the value of N4 may be 4 mm, 5 mm, 7 mm, 9 mm, or other values ​​within the range of 4 mm to 9 mm, and no specific limitation is imposed here.

[0099] In some embodiments, the distance L1 from the first endpoint 221a of the first groove 221 to the front wall 121 can be set to 14.4 mm, the distance L2 from the second endpoint 221c to the front wall 121 can be set to 11.3 mm, the distance N1 from the first endpoint 221a to the side wall 122 can be set to 19.3 mm, and the distance N2 from the second endpoint 221c to the side wall 122 can be set to 6.3 mm; the distance L3 from the third endpoint 222a of the second groove 222 to the front wall 121 can be set to 9 mm, the distance L4 from the fourth endpoint 222c to the front wall 121 can be set to 24.7 mm, the distance N3 from the third endpoint 222a to the side wall 122 can be set to 33.7 mm, and the distance N4 from the fourth endpoint 222c to the side wall 122 can be set to 4.8 mm.

[0100] The angle a1 between the first inflection point 221b and the line connecting the first endpoint 221a and the second endpoint 221c can be set to 100 degrees, and the angle a2 between the second inflection point 222b and the line connecting the third endpoint 222a and the fourth endpoint 222c can be set to 110 degrees.

[0101] Figure 31 Shown Figure 1 Another schematic diagram of the groove section structure of the first groove and the second groove of the hinge assembly of the refrigeration equipment; see Figure 31 In some embodiments, the first slot 221 can be divided into two slot segments, namely a fourth arc slot segment 221f and a second straight slot segment 221g. The fourth arc slot segment 221f and the second straight slot segment 221g intersect at a first inflection point 221b, with the first endpoint 221a located at the fourth arc slot segment 221f and the second endpoint 221c located at the second straight slot segment 221g.

[0102] During the opening process of the door body 12, the first axis 211 moves along the fourth arc groove segment 221f to the first inflection point 221b, and enters the second straight groove segment 221g after passing the first inflection point 221b. During the relative movement of the first axis 211 and the first groove 221, the trajectory of the first axis 211 is two connected arcs and straight lines.

[0103] In some embodiments, the second slot 222 can be divided into three sequentially connected slot segments, namely, a fifth circular arc slot segment 222g, a second elliptical arc slot segment 222h, and a third linear slot segment 222i. Furthermore, the second inflection point 222b can be located within the third linear slot segment 222i or the second elliptical arc slot segment 222h. The third endpoint 222a is located within the fifth circular arc slot segment 222g, and the fourth endpoint 222c is located within the third linear slot segment 222i.

[0104] During the opening process of the door body 12, the second shaft 212 and the second slot 222 move relative to each other, and the second shaft 212 moves along the fifth circular arc slot segment 222g, the second elliptical arc slot segment 222h and the third straight slot segment 222i.

[0105] See also Figure 4 、 Figure 5 and Figure 6 In some embodiments, to further reduce the overall width of the first and second slots 221, 222 in the thickness direction of the door body 12, the end of the first slot 221 can be connected to the middle of the second slot 222, thereby reducing the structure between the first and second slots 221, 222 to a certain extent, shortening the distance between the first and second slots 221, 222, and reducing the space occupied by the first and second slots 221, 222 as a whole, thereby reducing the overall specifications of the second hinge 22. When the door body is in the closed state, the distance between the first and second shafts 211, 212 and the front wall 121 and side walls 122 is relatively small, that is, the first and second shafts 211, 212, and the first and second slots 221, 222 are arranged more compactly. This allows the thickness of the door body 12 to be thinner while ensuring the rotation angle of the door body 12, meeting the requirements of ultra-thin doors for refrigeration equipment.

[0106] In some embodiments, the first endpoint 221a of the first slot 221 is connected to the second slot 222, and the third endpoint 222a of the second slot 222 is spaced apart from the first endpoint 221a of the first slot 221. When the door 12 is in a closed state, the first shaft 211 is located at the first endpoint 221a of the first slot 221, and the second shaft 212 is located at the third endpoint 222a of the second slot 222.

[0107] It should be noted that the first endpoint 221a of the first slot 221 and the third endpoint 222a of the second slot 222 are both starting points. When the door body 12 is closed, the first axis 211 is located at the first endpoint 221a, and the second axis 212 is located at the third endpoint 222a. The first endpoint 221a of the first slot 221 is connected to the middle of the second slot 222, so that the starting position of the first axis 211 can be closer to the second slot 222, making the overall structural layout more compact and optimizing the space occupied by the entire hinge assembly.

[0108] In some embodiments, in order to avoid the first groove 221 and the second groove 222 being connected, which causes the first axis 211 and the second axis 212 to be misaligned with the first groove 221 and the second groove 222, the distance between the first endpoint 221a and the second endpoint 221c can be set to be less than or equal to the distance between the first axis 211 and the second axis 212, thereby limiting the first axis 211 from being separated from the first groove 221 and improving the stability of the hinge assembly 2.

[0109] In some embodiments, the depths of the first groove 221 and the second groove 222 can be staggered, that is, the depth of the first groove 221 is less than the depth of the second groove 222, the length of the first shaft 211 is less than the length of the second shaft 212, and the bottom end of the second shaft 212 is embedded in the second groove 222 and is lower than the bottom of the first groove 221, thereby preventing the second shaft 212 from moving into the first groove 221.

[0110] In some embodiments, in order to further reduce the specifications of the first slot 221, a reciprocating slot section 221j can be set in the first slot 221, and by coordinating the distance between the first slot 221 and the second slot 222, the first shaft 211 moves back and forth in the reciprocating slot section 221j of the first slot 221 during the door opening and closing process, thereby relatively reducing the length of the first slot 221 to a certain extent and reducing the thickness space occupied.

[0111] Therefore, the first groove 221 also has a first intermediate point 221h and a second intermediate point 221i, and the first intermediate point 221h is located between the first inflection point 221b and the first end point 221a, the second intermediate point 221i can be set between the first inflection point 221b and the second end point 221c, and the reciprocating groove section 221j is between the first intermediate point 221h and the second intermediate point 221i.

[0112] During the opening process of the door body 12, the first axis 211 moves from the first endpoint 221a to the second endpoint 221c, passing through the first intermediate point 221h and the first inflection point 221b, and then moving to the second intermediate point 221i. Then, the first axis 211 moves from the second intermediate point 221i to the first intermediate point 221h, passes through the first inflection point 221, and after moving to the first intermediate point 221h, it turns back again and moves to the second intermediate point 221i. After moving through the first intermediate point 221h, it continues to move toward the second intermediate point 221i, passing through the first inflection point 221b, the second intermediate point 221i, and finally moving to the second endpoint 221c.

[0113] During the opening process of the door 12 , the second shaft 212 also moves relative to the second slot 222 , so that the second shaft 212 can move from the third end point 222 a to the fourth end point 222 c . During this process, the second shaft 212 passes through the second inflection point 222 b .

[0114] Figure 7 Shown Figure 1 A schematic diagram of the positions of the first axis and the second axis when the door of the refrigeration equipment is located at a first angle; Figure 8 Shown Figure 1 Schematic diagram of the positions of the first axis and the second axis when the door body of the refrigeration equipment is located at a second angle.

[0115] See also Figure 7 and Figure 8 In some embodiments, the distance L5 between the first midpoint 221h and the front wall 121 ranges from 16 mm to 21 mm. For example, the distance L5 between the first midpoint 221h and the front wall 121 can be 16 mm, 17.2 mm, 18 mm, 18.8 mm, 20 mm, 21 mm, or another value within the range of 16 mm to 21 mm, without any specific limitation.

[0116] The distance N5 between the first midpoint 221h and the sidewall 122 ranges from 8 mm to 14 mm. For example, the distance N5 between the first midpoint 221h and the sidewall 122 can be 8 mm, 9 mm, 10 mm, 10.6 mm, 12 mm, 13 mm, 14 mm, or any other value within the range of 8 mm to 14 mm, and is not particularly limited herein.

[0117] The distance L6 between the second intermediate point 221i and the front wall 121 ranges from 17 mm to 22 mm. For example, the distance L6 between the second intermediate point 221i and the front wall 121 can be 17 mm, 18 mm, 19 mm, 19.4 mm, 21 mm, 22 mm, or any other value within the range of 17 mm to 22 mm, without any specific limitation.

[0118] The distance N6 between the second middle point 221i and the side wall 122 ranges from 9 mm to 14 mm. For example, the distance N6 between the second middle point 221i and the side wall 122 can be 9 mm, 10 mm, 11.4 mm, 12 mm, 13 mm, 14 mm, or other values ​​within the range of 9 mm to 14 mm, and is not specifically limited here.

[0119] In some embodiments, when the first axis 211 moves from the first endpoint 221a to the first intermediate point 221h, the distance L7 between the second axis 212 and the front wall 121 ranges from 24 mm to 27 mm. For example, the distance L7 between the second axis 212 and the front wall 121 can be 24 mm, 25 mm, 25.9 mm, 27 mm, or another value within the range of 24 mm to 27 mm, without limitation.

[0120] When the first axis 211 moves from the first endpoint 221a to the first intermediate point 221h, the distance N7 between the second axis 212 and the sidewall 122 may range from 22 mm to 26 mm. For example, the distance N7 between the second axis 212 and the sidewall 122 may be 22 mm, 23 mm, 24 mm, 24.7 mm, 26 mm, or another value within the range of 22 mm to 26 mm, without limitation.

[0121] In some embodiments, when the first axis 211 moves from the second intermediate point 221i to the second endpoint 221c, the distance L8 between the second axis 212 and the front wall 121 ranges from 30 mm to 34 mm. For example, the distance L8 between the second axis 212 and the front wall 121 can be 30 mm, 31 mm, 31.9 mm, 33 mm, 34 mm, or another value within the range of 30 mm to 34 mm, without limitation.

[0122] When the first axis 211 moves from the second intermediate point 221i to the second endpoint 221c, the distance N8 between the second axis 212 and the sidewall 122 ranges from 20 mm to 22 mm. For example, the distance N8 between the second axis 212 and the sidewall 122 ranges from 20 mm to 22 mm, and is not particularly limited herein.

[0123] In some embodiments, the direction of the groove section can be designed to reduce the risk of interference between the door body 12 and the main body 11, and to a certain extent, take into account a large door opening angle.

[0124] The stage in which the first axis 211 moves from the first endpoint 221a to the first intermediate point 221h can be set as a stage in which the first axis 211 is relatively far away from the front wall 121, and the stage in which the first axis 211 moves from the second intermediate point 221i to the second endpoint 221c can be set as a stage close to the front wall 121; and the stage in which the second axis 212 moves from the third endpoint 222a to the second inflection point 222b can be set as a stage away from the front wall 121, and the stage in which the second axis 212 moves from the second inflection point 222b to the fourth endpoint 222c can be set as a stage close to the front wall 121.

[0125] The above-mentioned groove body enables the first shaft 211 and the second shaft 212 to move in a direction away from the front wall 121 during the initial stage of door opening, thereby causing the door body 12 to have a tendency to move away from the main body 11 to avoid interference between the door body 12 and the main body 11. In the intermediate stage of the door body 12 opening from the closed state to the maximum angle, the first shaft 211 forms a retraction stage relative to the first groove 221 in the direction of movement. By setting this retraction stage, the amount of overrun of the door body 12 during the rotation process is effectively controlled, and the movement of the second shaft 212 is coordinated to enable the door body 12 to rotate and open quickly, reducing the space occupied by the running track of the first shaft 211 during the rotation of the door body 12, thereby facilitating the reduction of the space occupied by the entire hinge assembly 2. In the final stage of the door body 12 opening from the closed state to the maximum angle, the first shaft 211 and the second shaft 212 both move in a direction close to the front wall 121 to facilitate the large-angle opening of the door body 12.

[0126] On the other hand, the total motion trajectories of the first axis 211 and the second axis 212 relative to the first groove 221 and the second groove 222 both have a turning shape, which further reduces the space occupied by the first axis 211 and the second axis 212 in the thickness direction of the door body 12 during the relative movement with the door body 12, so that the thickness of the door body 12 can be thinner. Not only can the mass of the door body 12 be lighter, but the thickness distribution of the entire refrigeration equipment is also optimized.

[0127] See also Figure 5 、 Figure 6 、 Figure 7 and Figure 8 In some embodiments, during the opening and closing process of the door body 12, when the opening angle of the door body 12 relative to the main body 11 is between the first angle Q1 and the second angle Q2, the first shaft 211 reciprocates relative to the first slot 221 between the first intermediate point 221h and the second intermediate point 221i. The first angle Q1 is smaller than the second angle Q2. During the opening process of the door body 12, the door body 12 first rotates to the first angle Q1 and then to the second angle Q2. During the closing process, the door body first returns to the second angle Q2 and then to the first angle Q1.

[0128] During the process of the door body 12 opening from the closed state to the first angle Q1, the first axis 211 moves from the first end point 221a to the first intermediate point 221h; that is, when the opening of the door body 12 is the first angle Q1, the first axis 211 is at the first intermediate point 221h in the first groove 221.

[0129] In the process of the door body 12 opening from the first angle Q1 to the second angle Q2, the first axis 211 moves from the first intermediate point 221h through the first inflection point 221b and then moves to the second intermediate point 221i; that is, when the opening of the door body 12 is the second angle Q2, the first axis 211 is at the second intermediate point 221i in the first groove 221.

[0130] In some embodiments, when the door 12 opens from the closed state to the third angle, the second axis moves from the third endpoint 222a to the second inflection point 222b; that is, when the door 12 is at the third angle, the second axis 212 is at the second inflection point 222b.

[0131] The third angle is greater than the second angle. That is, as the door 12 opens, the second axis 212 moves from the third endpoint 222a toward the second inflection point 222b as the first axis 211 reciprocates relative to the first slot 221. Only when the first axis 211 moves from the second intermediate point 221i toward the second endpoint 221c and the door is opened to the third angle does the second axis 212 move to the second inflection point 222b. Before the door 12 opens to the third angle, the second axis 212 is relatively far from the front wall 121. After the second axis 212 passes the second inflection point 222b, it approaches the front wall 121. This allows the door 12 to further deflect about the first axis 211, further expanding the door opening.

[0132] In some embodiments, when the door body 12 opens from the first angle Q1 to the second angle Q2, the first axis 211 moves from the first intermediate point 221h to the second intermediate point 221i, and then moves from the second intermediate point 221i to the first intermediate point 221h, and then moves from the first intermediate point 221h to the second intermediate point 221i; wherein the second angle Q2 is greater than the first angle Q1, and the third angle is greater than the second angle.

[0133] In some embodiments, due to the rotation principle of the double-axis double-groove hinge, during the opening and closing process of the door body 12, the deflection center of the door body 12 relative to the main body 11 changes, and its deflection center is not stably located at a certain point or multiple points on the hinge, but is a virtual rotation center outside the door body 12.

[0134] When the door body 12 is opened from the closed state to the first angle Q1, the virtual rotation center of the door body 12 is located at the first intermediate point 221h; that is, the virtual rotation center of the door body 12 is located at the axis of the first axis 211. When the door body 12 is opened from the closed state to the second angle Q2, the virtual rotation center of the door body 12 is located at the second intermediate point 221i; that is, the virtual rotation center of the door body 12 is also located at the axis of the first axis 211.

[0135] In the process of the door body 12 opening from the closed state to the first angle Q1, the virtual rotation center of the door body 12 is located on the side of the line connecting the axes of the first axis 211 and the second axis 212 away from the side wall 122, and as the door body 12 rotates, it gradually approaches the axis of the first axis 211, until the door body 12 is opened to the first angle Q1, the virtual rotation center of the door body 12 is coaxial with the first axis 211; in the process of the door body 12 opening from the first angle Q1 to the second angle, the virtual rotation center of the door body 12 is located on the side of the line connecting the axes of the first axis 211 and the second axis 212 close to the side wall 122 and first moves away and then approaches, until the door body 12 rotates to the second angle Q1, the first axis 211 retracts to the extreme position, and the virtual rotation center of the door body 12 is coaxial with the first axis 211; in the process of the door body 12 continuing to rotate from the third angle to the maximum angle, the virtual rotation center of the door body 12 returns to the side of the line connecting the axes of the first axis 211 and the second axis 212 away from the side wall.

[0136] In some embodiments, the value range of the first angle Q1 may be 30 degrees to 70 degrees; for example, the first angle Q1 may be 30 degrees, 40 degrees, 50 degrees, 56.4 degrees, 60 degrees, 65 degrees, 70 degrees or other angles between 30 degrees and 70 degrees, and no specific limitation is made here.

[0137] The value range of the second angle Q2 can be 60 degrees to 100 degrees; for example, the second angle Q2 can be 60 degrees, 68 degrees, 82 degrees, 90 degrees, 100 degrees or other angles between 60 degrees and 100 degrees, and no specific limitation is made here.

[0138] The value range of the third angle is 70 degrees to 110 degrees; for example, the third angle can be 70 degrees, 75 degrees, 80 degrees, 85 degrees, 9 degrees, 95.6 degrees, 100 degrees, 105 degrees, 110 degrees or other angles between 70 degrees and 110 degrees, and no specific limitation is made here.

[0139] In some embodiments, the groove between the first intermediate point 222h and the first endpoint 221a is arc-shaped, the groove between the first intermediate point 222h and the second intermediate point 222i is arc-shaped, and the groove between the second intermediate point 222i and the second endpoint 22ac transitions from an arc to a straight line.

[0140] Therefore, during the opening process of the door 12, the first shaft 211 moves in an arcuate, straight, and arc-shaped trajectory, respectively, corresponding to the first slot 221. That is, the first shaft 211 reciprocates between the first angle Q1 and the second angle Q2 in an arcuate trajectory. While the distance between the first shaft 211 and the second shaft 212 remains constant, the second shaft 212 can be smoothly moved away from the front wall 121 along the second slot 222, thereby achieving a wider opening.

[0141] In some embodiments, the groove shape between the third endpoint 222a and the second inflection point 222b transitions from an arc shape to a straight line shape, and the groove shape between the second inflection point 222b and the fourth endpoint 222c is an arc shape, so that when the distance between the first axis 211 and the second axis 212 remains unchanged, when the first axis 211 moves back and forth, the second axis 212 smoothly moves along the second groove 222 away from the front wall 121, thereby obtaining a larger opening.

[0142] Figure 30 Shown Figure 1 Schematic diagram of the positions of the end points of the first slot and the second slot of the hinge assembly of the refrigeration equipment.

[0143] See also Figure 30 In some embodiments, the first groove 221 and the second groove 222 are connected, and the distance L1 between the first end point 221a of the first groove 221 and the front wall 121 can be set to a value in the range of 7 mm to 17 mm. For example, the value of L1 can be 7 mm, 9 mm, 12 mm, 15 mm, 17 mm, or other values ​​between 7 mm and 17 mm, and is not specifically limited here.

[0144] The distance L2 from the second end point 221c to the front wall 121 can be set to a value range of 6 mm to 14 mm. For example, the value of L2 can be 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, or other values ​​between 6 mm and 14 mm, and is not specifically limited here.

[0145] The distance N1 from the first end point 221a to the side wall 122 is set to a value range of 14 mm to 24 mm. For example, the value of N1 can be 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, or other values ​​between 14 mm and 24 mm, and is not specifically limited here.

[0146] The distance N2 from the second end point 221c to the side wall 122 is set to a value range of 4 mm to 11.5 mm. For example, the value of N2 can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11.5 mm, or other values ​​between 4 mm and 11.5 mm, and is not specifically limited here.

[0147] The distance L3 from the third end point 222a of the second groove 222 to the front wall 121 can be set to a value range of 6 mm to 13 mm. For example, the value of L3 can be 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, or other values ​​between 6 mm and 13 mm, and is not specifically limited here.

[0148] The distance L4 from the fourth endpoint 222c to the front wall 121 is set to a value range of 18 mm to 28 mm. For example, the value of L4 can be 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, or other values ​​between 18 mm and 28 mm, and is not specifically limited here.

[0149] The distance N3 from the third endpoint 222a to the sidewall 122 is set to a value range of 27 mm to 37 mm. For example, the value of N3 can be 27 mm, 28 mm, 29 mm, 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm, 36 mm, 37 mm, or other values ​​between 27 mm and 37 mm, and is not specifically limited here.

[0150] The distance N4 from the fourth endpoint 222c to the sidewall 122 is set to a value range of 4 mm to 11 mm. For example, the value of N4 can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, or other values ​​between 4 mm and 11 mm, and is not specifically limited here.

[0151] In some embodiments, the first groove 221 and the second groove 222 are connected, and the distance L1 from the first endpoint 221a of the first groove 221 to the front wall 121 can be set to 16.5 mm, the distance L2 from the second endpoint 221c to the front wall 121 can be set to 8.6 mm, the distance N1 from the first endpoint 221a to the side wall 122 can be set to 17.7 mm, and the distance N2 from the second endpoint 221c to the side wall 122 can be set to 6.7 mm; the distance L3 from the third endpoint 222a of the second groove 222 to the front wall 121 can be set to 8.7 mm, the distance L4 from the fourth endpoint 222c to the front wall 121 can be set to 24.4 mm, the distance N3 from the third endpoint 222a to the side wall 122 can be set to 31.5 mm, and the distance N4 from the fourth endpoint 222c to the side wall 122 can be set to 6.6 mm.

[0152] The angle a1 between the first inflection point 221b and the line connecting the first endpoint 221a and the second endpoint 221c can be set in the range of 90.1 degrees, and the angle a2 between the second inflection point 222b and the line connecting the third endpoint 222a and the fourth endpoint 222c is set to 110.1 degrees.

[0153] In some embodiments, the width of the first groove 221 and the second groove 222 in the second hinge member 22 in the thickness direction of the door body 12 is 20mm to 30mm; accordingly, the thickness of the door body 12 can be 42mm to 60mm, so that the door body 12 can be ultra-thin.

[0154] The greater the width of the first groove 221 and the second groove 222 in the thickness direction of the door body 12, the thicker the door body 12. The second hinge 22 has a compact structure, and the door body can be adapted to be an ultra-thin door body, thereby reducing the space occupied by the door body in the entire refrigeration equipment. The capacity of the entire refrigeration equipment can be increased at the same volume, and the thickness of the entire refrigeration equipment can be reduced at the same capacity.

[0155] The thickness S of the door body 12 ranges from 42 mm to 60 mm. For example, the thickness S of the door body 12 can be 42 mm, 45 mm, 47 mm, 50 mm, 52 mm, 55 mm, 58 mm, 60 mm, or other values ​​between 42 mm and 60 mm, which are not specifically limited here.

[0156] Figure 9 Shown Figure 1 Schematic diagram of the positions of the first and second axes of the refrigeration equipment with the door closed; see Figure 9 In some embodiments, when the door body is in the closed state, the first axis 211 is located at the first end point 221a, or the first axis 211 is located between the first end point 221a and the first inflection point 221b. By limiting the arrangement of the first axis 211 and the second axis 212 relative to the door body 12 when the door body 12 is in the closed state, the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 is shortened. While the hinge assembly itself has a compact structure, the distance between the hinge assembly 2 and the front wall 121 and the side wall 122 is also shortened. The fitting dimensions of the hinge assembly 2 and the door body 12 are more compact, which facilitates reducing the thickness of the door body 12.

[0157] Among them, the distance between the axis center of the first axis 211 and the front wall 121 refers to the length of a perpendicular line drawn from the axis center of the first axis 211 to the front wall 121, and the distance between the axis center of the first axis 211 and the side wall 122 refers to the length of a perpendicular line drawn from the axis center of the first axis 211 to the side wall 122; the distance between the axis center of the second axis 212 and the front wall 121 refers to the length of a perpendicular line drawn from the axis center of the second axis 212 to the front wall 121, and the distance between the axis center of the second axis 212 and the side wall 122 refers to the length of a perpendicular line drawn from the axis center of the second axis 212 to the side wall 122.

[0158] The distance A0 between the axis center of the first axis 211 and the front wall 121 may be 10 mm to 20 mm; for example, the distance A0 between the axis center of the first axis 211 and the front wall 121 may be 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 19 mm, 19.5 mm, 20 mm; or other values ​​between 10 mm and 20 mm, which are not specifically limited here.

[0159] The distance B0 between the axis center of the first axis 211 and the side wall 122 can be 17mm to 27mm; for example, the distance B0 between the axis center of the first axis 211 and the side wall 122 can be 17mm, 19mm, 20mm, 20.7mm, 22mm, 24mm, 26mm, 27mm; or other values ​​between 17mm and 27mm, which are not limited here.

[0160] The distance C0 between the axis center of the second axis 212 and the front wall 121 can be 6mm to 16mm; for example, the distance C0 between the axis center of the second axis 212 and the front wall 121 can be 6mm, 8mm, 10mm, 11.7mm, 12mm, 14mm, 16mm; or other values ​​between 6mm and 16mm, which are not limited here.

[0161] The distance D0 between the axis center of the second shaft 212 and the side wall 122 is 30 mm to 40 mm; illustratively, the distance D0 between the axis center of the second shaft 212 and the side wall 122 is 30 mm, 32 mm, 34 mm, 34.5 mm, 36 mm, 38 mm, 40 mm; or other values ​​between 30 mm and 40 mm, which are not specifically limited here.

[0162] Figure 17 Shown Figure 1 Schematic diagram of the angle between the tangent line of the first axis and the second axis moving trajectory and the front wall when the door of the refrigeration equipment is opened; see Figure 17 In some embodiments, by limiting the moment when the door body 12 is opened from a closed state, the angles α0 and β0 between the tangents of the movement trajectory of the first axis 211 and the second axis 212 relative to the door body 12 and the front wall 121 are set to constrain the movement trajectory of the door body 12 when it is opened, thereby avoiding interference between the door body 12 and the surrounding structure.

[0163] Among them, at the moment the door body 12 is opened, the angle α0 between the tangent line of the movement trajectory of the first axis 211 at the first end point relative to the first groove 221 and the front wall 121 is in the range of 20 degrees to 40 degrees. For example, at the moment the door body 12 is opened, the angle α0 between the tangent line of the movement trajectory of the first axis 211 at the first end point relative to the first groove 221 and the front wall 121 can be 20 degrees, 22 degrees, 25 degrees, 28.7 degrees, 30 degrees, 32 degrees, 35 degrees, 40 degrees, or other values ​​between 20 degrees and 40 degrees, and the specific value is not limited here.

[0164] When the door body 12 is opened, the angle β0 between the tangent line of the second shaft 212 relative to the movement trajectory of the second slot 222 at the third endpoint 222a and the front wall 121 is in the range of 40 degrees to 60 degrees. For example, when the door body 12 is opened, the angle β0 between the tangent line of the movement trajectory of the first shaft 211 relative to the first slot 221 at the first endpoint and the front wall 121 can be 40 degrees, 42 degrees, 45 degrees, 50 degrees, 52.8 degrees, 55 degrees, 57 degrees, 60 degrees, or other values ​​between 40 degrees and 60 degrees, which are not limited to the specific values ​​herein.

[0165] In some embodiments, the angle θ0 between the tangents of the moving trajectory of the first axis 211 and the second axis 212 relative to the door body 12 can also be limited at the moment when the door body 12 is opened from a closed state, so as to further constrain the moving trajectory of the door body when it is opened and further reduce the risk of interference between the door body and the surrounding structure.

[0166] At the moment the door body 12 is opened from a closed state, the angle θ0 between the tangent of the movement trajectory of the first axis 211 relative to the first slot 221 and the tangent of the movement trajectory of the second axis 212 relative to the second slot 222 may be in the range of 20 degrees to 40 degrees. For example, at the moment the door body 12 is opened, the angle θ0 between the tangent of the movement trajectory of the first axis 211 relative to the first slot 221 and the tangent of the movement trajectory of the second axis 212 relative to the second slot 222 may be 20 degrees, 22 degrees, 25 degrees, 28.7 degrees, 30 degrees, 32 degrees, 35 degrees, 40 degrees, or other values ​​between 20 degrees and 40 degrees, and is not limited to this.

[0167] In some embodiments, when the door body 12 is in a closed state, the first axis 211 is spaced apart from the first endpoint 221a of the first groove 221, and the second axis 212 is spaced apart from the first endpoint 222a of the second groove 222, that is, there may be a gap between the first axis 211 and the first endpoint 221a, and there may be a gap between the second axis 212 and the second endpoint 222a.

[0168] By spacing at least one of the first axis 211 and the second axis 212 from the corresponding first endpoint 221a and the second endpoint 222a, a certain negative closing angle can be provided when the door body 12 is in a closed state, thereby ensuring the sealing of the door body 12 when it is closed.

[0169] Figure 13 Shown Figure 1 Schematic diagram of the angle between the line connecting the first axis and the second axis and the front wall when the door of the refrigeration equipment is closed.

[0170] See also Figure 13In some embodiments, by limiting the angle between the line connecting the axes of the first axis 211 and the second axis 212 and the front wall 121 of the door body 12, the movement trajectory of the door body 12 when it starts to rotate from a closed state can be controlled to avoid interference between the door body 12 and surrounding structures, such as cabinets, when it is opened.

[0171] During the process of opening the door body 12 from a closed state, the angle δ between the axis line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 first decreases and then increases. During the process of opening the door body 12, there is a state in which the axis line connecting the centers of the first axis 211 and the second axis 212 is parallel to the front wall 121.

[0172] It should be noted here that, for the sake of distinction, when the first axis 211 is located on the side of the second axis 212 away from the front wall 121, the angle between the axis line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 is a positive value; when the first axis 211 is located on the side of the second axis 212 close to the front wall 121, the angle between the axis line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 is a negative value.

[0173] When the door body 12 is in a closed state, the first axis 211 and the second axis 212 may be located at the first endpoint 221a and the third endpoint 222a, respectively. The angle δ0 between the line connecting the axis centers of the first axis 211 and the second axis 212 and the front wall of the door body 12 may be in the range of 15 degrees to 45 degrees. For example, when the door body 12 is in a closed state, the angle δ between the line connecting the axis centers of the first axis 211 and the second axis 212 and the front wall of the door body 12 may be 15 degrees, 20 degrees, 25 degrees, 29.6 degrees, 35 degrees, 40 degrees, 45 degrees, or other angles between 15 degrees and 45 degrees, and the specific angles are not limited here.

[0174] Figure 21 Shown Figure 1 Schematic diagram of the distance between the first axis and the second axis in the thickness direction of the door body when the door body of the refrigeration equipment is closed.

[0175] See also Figure 21 In some embodiments, by limiting the distance between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 12, and the distance between the axis center of the first axis 211 and the axis center of the second axis 212 in the width direction of the door body, the distance between the first axis 211 and the second axis 212 is constrained, so that the layout of the first axis 211 and the second axis 212 is compact.

[0176] When the door body 12 is in a closed state, the distance W0 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the thickness direction of the door body 12 has a value ranging from 0 mm to 10 mm. For example, when the door body 12 is closed, the distance W0 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the thickness direction of the door body 12 can have a value of 0, 1 mm, 2 mm, 4 mm, 6 mm, 7.8 mm, 8 mm, 10 mm, or other values ​​between 0 and 10 mm, which are not specifically limited herein.

[0177] When the door body 12 is in a closed state, the distance M0 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the width direction of the door body 12 is in the range of 5 mm to 15 mm. For example, when the door body 12 is in a closed state, the distance M0 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the width direction of the door body 12 is 5 mm, 7 mm, 9 mm, 11 mm, 13 mm, 13.7 mm, 15 mm, or other values ​​between 5 mm and 15 mm, which are not specifically limited here.

[0178] Figure 25 Shown Figure 1 Schematic diagram of the distance between the door and the main body of a refrigeration device when the door is closed.

[0179] See also Figure 25 In some embodiments, a flexible seal, such as a door seal, may be installed between the door body 12 and the main body 11 to ensure a tight seal within the refrigeration unit. Therefore, the door body 12 is provided with a rear wall 124 corresponding to the front wall 121, and the door seal may be installed on the rear wall 124. To allow space for the door seal installation and reduce the risk of interference between the door body 12 and the main body 11 during opening, a distance between the door body 12 and the main body 11 should be maintained.

[0180] When the door body 12 is in the closed state, the distance P0 between the rear wall 124 of the door body 12 and the main body 11 can range from 5 mm to 8 mm. For example, when the door body is closed, the distance P0 between the rear wall 124 and the main body 11 can be 5 mm, 6 mm, 7 mm, 8 mm, or other values ​​between 5 mm and 8 mm, which are not limited to the specific values ​​herein.

[0181] Figure 11 Shown Figure 1 Schematic diagram of the positions of the first axis and the second axis when the door of the refrigeration equipment is in a 90-degree opening state.

[0182] See also Figure 11In some embodiments, by limiting the arrangement positions of the first axis 211 and the second axis 212 relative to the door body 12 when the door body 12 is in a 90-degree opening state, the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 is made smaller. While the structure of the hinge assembly 2 itself is compact, the distance between the hinge assembly 2 and the front wall 121 and the side wall 122 is also smaller. The matching size of the hinge assembly 2 and the door body 12 is more compact, which facilitates reducing the thickness of the door body 12.

[0183] It is worth noting that the relative angle between the door body 12 and the main body 11 is 90 degrees, that is, the door body 12 is at an opening of 90 degrees, which is the most commonly used opening angle of the door body 12. By limiting the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 at this position, the door body 12 is controlled to open to 90 degrees. When the distance between the embedded refrigeration equipment and the surrounding structures such as the cabinet is very small, the relative position of the door body 12 is controlled so as not to exceed the box amount too much or intrude too much, which is convenient for users to use when the door body 12 is normally opened.

[0184] Among them, the distance between the axis center of the first axis 211 and the front wall 121 refers to the length of a perpendicular line drawn from the axis center of the first axis 211 to the front wall 121, and the distance between the axis center of the first axis 211 and the side wall 122 refers to the length of a perpendicular line drawn from the axis center of the first axis 211 to the side wall 122; the distance between the axis center of the second axis 212 and the front wall 121 refers to the length of a perpendicular line drawn from the axis center of the second axis 212 to the front wall 121, and the distance between the axis center of the second axis 212 and the side wall 122 refers to the length of a perpendicular line drawn from the axis center of the second axis 212 to the side wall 122.

[0185] When the door body 12 is in a 90-degree opening state, the distance A2 between the axis center of the first axis 211 and the front wall 121 can be 12mm~22mm; for example, the distance between the axis center of the first axis 211 and the front wall 121 can be 12mm, 14mm, 16mm, 18mm, 19.5mm, 20mm, 22mm or other values ​​between 12mm and 22mm, which are not limited here.

[0186] When the door body 12 is in a 90-degree opening state, the distance B2 between the axis center of the first axis 211 and the side wall 122 can be 9mm to 19mm; for example, the distance between the axis center of the first axis 211 and the side wall 122 can be 9mm, 11mm, 11.2mm, 13mm, 15mm, 17mm, 19mm or other values ​​between 9mm and 19mm, which are not limited here.

[0187] When the door body 12 is in the 90-degree opening state, the distance C2 between the axis center of the second axis 212 and the front wall 121 can be 28mm~38mm; for example, the distance between the axis center of the second axis 212 and the front wall 121 can be 28mm, 29mm, 31mm, 33mm, 34.5mm, 35mm, 36mm, 37mm, 38mm or other values ​​between 28mm and 38mm, which are not limited here.

[0188] When the door body 12 is in a 90-degree opening state, the distance D2 between the axis center of the second shaft 212 and the side wall 122 is 17mm~27mm; illustratively, the distance between the axis center of the second shaft 212 and the side wall 122 is 17mm, 19mm, 21mm, 22mm, 23mm, 25mm, 27mm or other values ​​between 17mm and 27mm, which are not limited here.

[0189] Figure 19 Shown Figure 1 Schematic diagram of the angles between the tangents of the first and second axis moving trajectories and the front wall when the door of the refrigeration equipment is in a 90-degree opening state.

[0190] See also Figure 19 In some embodiments, by limiting the moment when the door body 12 is opened to 90 degrees, the angle α2 between the tangent of the moving trajectory of the first axis 21 relative to the door body 12 and the front wall 121, the tangent β2 of the moving trajectory of the second axis 212 relative to the door body 12, and the angle θ2 between the tangents of the moving trajectory of the first axis 211 and the second axis 212 relative to the door body 12 are constrained to constrain the moving trajectory of the door body 12 when it is opened, so as to avoid interference between the door body 12 and the surrounding structure.

[0191] Among them, at the moment when the door body 12 is opened to 90 degrees, the angle α2 between the tangent line of the movement trajectory of the first axis 211 relative to the first slot 221 at the first end point and the front wall 121 is in the range of -25 degrees to -45 degrees. For example, at the moment when the door body 12 is opened to 90 degrees, the angle α2 between the tangent line of the movement trajectory of the first axis 211 relative to the first slot 221 and the front wall 121 can be -25 degrees, -30 degrees, -34.9 degrees, -40 degrees, -45 degrees, or other values ​​between -25 degrees and -45 degrees, and the specific values ​​are not limited here.

[0192] At the moment the door body 12 is opened to 90 degrees, the angle β2 between the tangent line of the movement trajectory of the second shaft 212 relative to the second slot 222 and the front wall 121 is in the range of 5 degrees to 25 degrees. For example, at the moment the door body 12 is opened to 90 degrees, the angle β2 between the tangent line of the movement trajectory of the second shaft 212 relative to the second slot 222 and the front wall 121 can be 5 degrees, 10 degrees, 15 degrees, 17.1 degrees, 20 degrees, 25 degrees, or other values ​​between 5 degrees and 25 degrees, and the specific values ​​are not limited here.

[0193] In some embodiments, the angle θ2 between the tangent of the moving trajectory of the first axis 211 and the second axis 212 relative to the door body 12 can also be limited at the moment when the door body 12 is opened from the closed state, so as to further constrain the opening of the door body to make the moving trajectory, and further reduce the risk of interference between the door body and the surrounding structure.

[0194] At the moment the door body 12 is opened from a closed state, the angle θ2 between the tangent of the movement trajectory of the first axis 211 relative to the first slot 221 and the tangent of the movement trajectory of the second axis 212 relative to the second slot 222 may range from 30 degrees to 70 degrees. For example, at the moment the door body 12 is opened to 90 degrees, the angle θ2 between the tangent of the movement trajectory of the first axis 211 relative to the first slot 221 and the tangent of the movement trajectory of the second axis 212 relative to the second slot 222 may be 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 52 degrees, 60 degrees, 70 degrees, or other values ​​between 30 degrees and 70 degrees, and is not limited to this.

[0195] Figure 15 A schematic diagram shows the angle between the first axis, the second axis and the front wall when the door is in a 90-degree opening state.

[0196] See also Figure 15 In some embodiments, by limiting the angle δ between the line connecting the axes of the first axis 211 and the second axis 212 and the front wall 121 of the door body 12, the movement trajectory of the door body 12 when it starts to rotate from a closed state is controlled to avoid interference between the door body 12 and surrounding structures, such as cabinets, when it is opened.

[0197] When the door body 12 is at a 90-degree opening, the angle δ2 between the line connecting the axis centers of the first axis 211 and the second axis 212 and the front wall 121 of the door body 12 ranges from -75 degrees to -45 degrees. For example, when the door body 12 is at a 90-degree opening, the angle δ2 between the line connecting the axis centers of the first axis 211 and the second axis 212 and the front wall 12 can be -75 degrees, -70 degrees, -65 degrees, -60.4 degrees, -55 degrees, -50 degrees, -45 degrees, or other angles between -75 degrees and -45 degrees, and the specific angles are not limited here.

[0198] Figure 23 Shown Figure 1 Schematic diagram of the distance between the first axis and the second axis in the thickness direction of the door when the door of the refrigeration equipment is open at 90 degrees

[0199] See also Figure 23 In some embodiments, by limiting the distance W between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 12, and the distance M between the axis center of the first axis 211 and the axis center of the second axis 212 in the width direction of the door body, the distance between the first axis 211 and the second axis 212 is constrained, so that the layout of the first axis 211 and the second axis 212 is compact.

[0200] When the door body 12 is opened at 90 degrees, the distance W2 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the thickness direction of the door body 12 ranges from 5 mm to 15 mm. For example, when the door body 12 is opened at 90 degrees, the distance W2 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the thickness direction of the door body 12 can be 5 mm, 7 mm, 9 mm, 11 mm, 13 mm, 13.7 mm, 15 mm, or other values ​​between 5 mm and 15 mm, and the specific values ​​are not limited here.

[0201] When the door body 12 is open at 90 degrees, the distance M2 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the width direction of the door body 12 ranges from 5 mm to 15 mm. For example, when the door body 12 is open at 90 degrees, the distance M2 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the width direction of the door body 12 can be 5 mm, 7 mm, 7.8 mm, 9 mm, 11 mm, 13 mm, 15 mm, or a value between 5 mm and 15 mm, which is not specifically limited here.

[0202] Figure 27 Shown Figure 1 Schematic diagram of the distance between the door and the main body of a refrigeration equipment when the door is open at 90 degrees.

[0203] See also Figure 27 In some embodiments, a flexible seal, such as a door seal, may be installed between the door body 12 and the main body 11 to ensure a tight seal within the refrigeration unit. Therefore, the door body 12 is provided with a rear wall 124 corresponding to the front wall 121, and the door seal may be installed on the rear wall 124. To allow space for the door seal installation and reduce the risk of interference between the door body 12 and the main body 11 during opening, a distance between the door body 12 and the main body 11 should be maintained.

[0204] When the door body 12 is at a 90-degree angle, the distance P2 between the rear wall 124 of the door body 12 and the main body 11 may range from 5 mm to 35 mm. For example, when the door body 12 is opened at a 90-degree angle, the distance P2 between the door body 12 and the main body 11 may be 5 mm, 10 mm, 15 mm, 20 mm, 24.3 mm, 30 mm, 35 mm, or other values ​​between 5 mm and 35 mm, and the specific values ​​are not limited here.

[0205] Figure 12 Shown Figure 1 Schematic diagram of the positions of the first axis and the second axis when the door of the refrigeration equipment is in the maximum opening state.

[0206] See also Figure 12 In some embodiments, based on usage habits, the opening of the door body 12 may also be greater than 90 degrees, such as 120 degrees, or even a larger degree; this allows the specification design and installation position of the hinge assembly 2 and the door body 12 to be more finely coordinated, thereby taking into account the large opening and ultra-thin specification performance of the door body; especially in embedded installation conditions.

[0207] It is worth noting that the maximum relative angle between the door body 12 and the main body 11 is the maximum angle at which the door body is opened. The maximum relative angle between the door body 12 and the main body 11 exceeds 90 degrees. After the door body is opened to 90 degrees, because there is a certain gap between the door body 12 and the surrounding structures such as the cabinet body, the door body 12 can continue to open to the maximum angle for the convenience of user use. By limiting the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 at this position, the posture of the door body 12 relative to the main body 11 when the door body 12 is opened to the maximum angle is controlled. When the distance between the embedded refrigeration equipment and the surrounding structures such as the cabinet body is very small, the maximum angle is ensured to be sufficient for user use, and to a certain extent, the relative position of the door body 12 is taken into account so as not to exceed the box volume too much or intrude too much, thereby reducing the risk of interference during use.

[0208] By limiting the arrangement positions of the first axis 211 and the second axis 212 relative to the door body 12 when the door body 12 is at its maximum opening, the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 can be shortened. While the hinge assembly 2 itself has a compact structure, the distance between the hinge assembly 2 and the front wall 121 and the side wall 122 is also shortened. The matching dimensions of the hinge assembly 2 and the door body 12 are more compact, facilitating reduction in the thickness of the door body 12.

[0209] When the door body 12 is at its maximum opening, the distance A3 between the axis center of the first axis 211 and the front wall 121 can range from 7 mm to 17 mm; for example, the distance A3 between the axis center of the first axis 211 and the front wall 121 can be 7 mm, 9 mm, 11 mm, 11.6 mm, 13 mm, 15 mm, 17 mm; or other values ​​between 7 mm and 17 mm, which are not specifically limited here.

[0210] When the door body 12 is at its maximum opening state, the distance B3 between the axis center of the first axis 211 and the side wall 122 can range from 4.5 mm to 14.5 mm; for example, the distance B3 between the axis center of the first axis 211 and the side wall 122 can be 4.5 mm, 6 mm, 8 mm, 9.7 mm, 12 mm, 14 mm, 14.5 mm; or other values ​​between 4.5 mm and 14.5 mm, which are not specifically limited here.

[0211] When the door body 12 is at its maximum opening state, the distance C3 between the axis center of the second axis 212 and the front wall 121 can range from 21mm to 31mm; for example, the distance C3 between the axis center of the second axis 212 and the front wall 121 can be 21mm, 23mm, 25mm, 27mm, 27.4mm, 29mm, 31mm; or other values ​​between 21mm and 31mm, which are not specifically limited here.

[0212] When the door body 12 is at its maximum opening state, the distance D3 between the axis center of the second axis 212 and the side wall 122 ranges from 4 mm to 14 mm; for example, the distance D3 between the axis center of the second axis 212 and the side wall 122 may be 4 mm, 6 mm, 8 mm, 9.6 mm, 10 mm, 12 mm, 14 mm; or other values ​​between 4 mm and 14 mm, which are not specifically limited here.

[0213] Figure 20 Shown Figure 1 Schematic diagram of the angles between the tangents of the first and second axis moving trajectories and the front wall when the door of the refrigeration equipment is in the maximum opening state.

[0214] See also Figure 20 In some embodiments, by limiting the moment when the door body 12 is opened to the maximum opening, the angle α3 between the tangent of the movement trajectory of the first axis 211 and the second axis 212 relative to the door body 12 and the front wall 121, and the angle β3 between the tangent of the movement trajectory of the second axis 212 relative to the door body 12 and the front wall 121 are set, so as to constrain the movement trajectory of the door body 12 when it is opened, and limit the intrusion amount of the door body 12 toward the inner side of the main body, so as to avoid interference between the door body 12 and the surrounding structure.

[0215] Among them, at the moment when the door body 12 is opened to the maximum opening, the angle α3 between the tangent of the movement trajectory of the first axis 211 relative to the first slot 221 at the first end point and the front wall 121 is in the range of -120 degrees to -140 degrees. For example, at the moment when the door body 12 is opened to the maximum opening, the angle α3 between the tangent of the movement trajectory of the first axis 211 relative to the first slot 221 at the second end point and the front wall 121 can be -120 degrees, -125 degrees, -129 degrees, -133 degrees, -135 degrees, -140 degrees, or other values ​​between -120 degrees and -140 degrees, and the specific values ​​are not limited here.

[0216] At the moment the door body 12 is opened to its maximum opening, the angle β3 between the tangent line of the movement trajectory of the second shaft 212 at the fourth endpoint 222a relative to the second slot 222 and the front wall 121 is in the range of -55 degrees to -75 degrees. For example, at the moment the door body 12 is opened to its maximum opening, the angle β3 between the tangent line of the movement trajectory of the second shaft 211 at the fourth endpoint 222c relative to the second slot 222 and the front wall 121 can be -55 degrees, -60 degrees, -65 degrees, -67 degrees, -70 degrees, -75 degrees, or other values ​​between -55 degrees and -75 degrees, and the specific values ​​are not limited here.

[0217] In some embodiments, the angle θ3 between the tangent of the moving trajectory of the first axis 211 and the second axis 212 relative to the door body 12 can also be limited at the moment when the door body 12 is opened from the closed state, so as to further constrain the opening of the door body to make the moving trajectory, and further reduce the risk of interference between the door body and the surrounding structure.

[0218] At the moment when the door body 12 is opened to its maximum opening, the angle θ3 between the tangent of the movement trajectory of the first axis 211 relative to the first slot 221 and the tangent of the movement trajectory of the second axis 212 relative to the second slot 222 can be in the range of 50 degrees to 70 degrees. For example, at the moment when the door body 12 is opened to its maximum opening, the angle θ3 between the tangent of the movement trajectory of the first axis 211 relative to the first slot 221 and the tangent of the movement trajectory of the second axis 212 relative to the second slot 222 can be 50 degrees, 54 degrees, 58 degrees, 62 degrees, 66 degrees, 70 degrees, or other values ​​between 50 degrees and 70 degrees, and is not limited to this.

[0219] Figure 16 Shown Figure 1 Schematic diagram of the angle between the first axis and the second axis and the front wall when the door of the refrigeration equipment is in the maximum opening state.

[0220] See also Figure 16In some embodiments, by limiting the angle δ between the line connecting the axes of the first axis 211 and the second axis 212 and the front wall 121 of the door body 12, the movement trajectory of the door body 12 when it starts to rotate from a closed state is controlled to avoid interference between the door body 12 and surrounding structures, such as cabinets, when it is opened.

[0221] During the process of opening the door body 12 from a closed state, the angle between the axis line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 first decreases and then increases. During the process of opening the door body 12, there is a state in which the axis line connecting the centers of the first axis 211 and the second axis 212 is parallel to the front wall 121.

[0222] It should be noted here that, for the sake of distinction, when the first axis 211 is located on the side of the second axis 212 away from the front wall 121, the angle between the axis line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 is a positive value; when the first axis 211 is located on the side of the second axis 212 close to the front wall 121, the angle between the axis line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 is a negative value.

[0223] When the door body 12 is at its maximum opening, the first axis 211 and the second axis 212 may be located at the second endpoint 221c and the fourth endpoint 222c, respectively. The angle δ3 between the line connecting the axis centers of the first axis 211 and the second axis 212 and the front wall of the door body 12 may be in the range of -105 degrees to -75 degrees. For example, when the door body 12 is at its maximum opening, the angle δ3 between the line connecting the axis centers of the first axis 211 and the second axis 212 and the front wall of the door body 12 may be -105 degrees, -100 degrees, -95 degrees, -90.4 degrees, -85 degrees, -80 degrees, -75 degrees, or other angles between -105 degrees and -75 degrees, and the specific angles are not limited here.

[0224] In some embodiments, the maximum relative angle between the door body 12 and the main body 11 can be 115 degrees to 125 degrees. For example, the maximum relative angle between the door body 12 and the main body 11 can be 115 degrees, 117 degrees, 120 degrees, 121 degrees, 123 degrees, 125 degrees, or other angles between 115 degrees and 125 degrees, which are not specifically limited here.

[0225] Figure 24 Shown Figure 1 Schematic diagram of the distance between the first axis and the second axis in the thickness direction of the door body when the door body of the refrigeration equipment is in the maximum opening state.

[0226] See also Figure 4 and Figure 24In some embodiments, by limiting the distance W between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 12, and the distance M between the axis center of the first axis 211 and the axis center of the second axis 212 in the width direction of the door body, the distance between the first axis 211 and the second axis 212 is constrained, so that the layout of the first axis 211 and the second axis 212 is compact.

[0227] When the door body 12 is at its maximum opening, the distance W3 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the thickness direction of the door body 12 has a value ranging from 10 mm to 25 mm. For example, when the door body 12 is at its maximum opening, the distance W3 between the axis center of the first shaft 211 and the axis center of the second shaft 212 in the thickness direction of the door body 12 can be 10 mm, 12 mm, 14 mm, 15.8 mm, 18 mm, 20 mm, 22 mm, 25 mm, or other values ​​between 10 mm and 25 mm, and the specific values ​​are not limited here.

[0228] When the door body 12 is at its maximum opening, the distance M3 between the axis centers of the first shaft 211 and the second shaft 212 in the width direction of the door body 12 has a value range of 0 to 5 mm. For example, when the door body 12 is at its maximum opening, the distance M3 between the axis centers of the first shaft 211 and the second shaft 212 in the width direction of the door body 12 can be 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, or a value between 0 and 5 mm, and is not specifically limited here.

[0229] Figure 28 Shown Figure 1 Schematic diagram of the distance between the door and the main body of a refrigeration equipment when the door is at its maximum opening.

[0230] See also Figure 28 In some embodiments, a flexible seal, such as a door seal, may be installed between the door body 12 and the main body 11 to ensure a tight seal within the refrigeration unit. Therefore, the door body 12 is provided with a rear wall 124 corresponding to the front wall 121, and the door seal may be installed on the rear wall 124. To allow space for the door seal installation and reduce the risk of interference between the door body 12 and the main body 11 during opening, a distance between the door body 12 and the main body 11 should be maintained.

[0231] When the door body 12 is at its maximum opening, the distance P3 between the rear wall 124 of the door body 12 and the main body 11 may range from 5 mm to 30 mm. For example, when the door body 12 is opened at 90 degrees, the distance P3 between the door body 12 and the main body 11 may be 5 mm, 10 mm, 15 mm, 20 mm, 24.3 mm, 30 mm, or other values ​​between 5 mm and 30 mm, which are not limited to the specific range.

[0232] In some embodiments, in order to adapt to the embedded installation requirements of refrigeration equipment with ultra-thin door bodies, the intrusion amount of the door body 12, that is, the amplitude of the door body 12 moving toward the inside of the main body 11, should be strictly controlled to avoid interference with structures such as drawers inside the main body 11.

[0233] When the door 12 is closed, the intrusion amount can be set to 0. As the door 12 opens, it deflects and moves inward toward the main body 11, and the intrusion amount gradually increases. For ease of description, the intrusion amount is the inward displacement of the edge of the side wall 122 of the door 12 closest to the main body 11, i.e., the inner edge 126, relative to the initial position.

[0234] Considering that the opening of the door body 12 is 90 degrees, which is the most commonly used opening, it can be set that when the door body opening is more than 90 degrees, the inward displacement of the inner edge 126 relative to the side of the main body 11 is the limit intrusion amount.

[0235] Therefore, the intrusion of the door body 12 can be limited to less than 63 mm, and the intrusion of the door body 12 is controlled within a smaller range, thereby improving the user experience. For example, the intrusion of the door body can be 63 mm, 60 mm, 59 mm, 57 mm, 56.5 mm, 56.4 mm, or other values ​​less than 63 mm.

[0236] In some embodiments, the intrusion amount of the door body 12 is 56.5 mm, and the vertical distance between the front wall 121 of the door body 12 and the side of the main body 11 is only 1 mm. The intrusion amount is small and the user experience is better.

[0237] In some embodiments, when the door body 12 is in a closed state, the distance A0 between the axis of the first axis 211 and the front wall 121, and when the relative opening of the door body 12 and the main body 11 is 90 degrees, the distance B2 between the first axis 211 and the side wall 122 can satisfy: -3mm≤B2-A0≤3mm.

[0238] It is worth noting that when the door body 12 is closed, the side wall 122 of the door body 12 is aligned with the side surface of the main body 11. At this time, the distance between the axis of the first shaft 211 and the side wall 122 is the distance between the axis of the first shaft 211 and the side surface of the main body 11. When the relative opening angle between the door body 12 and the main body 11 is 90 degrees, the side wall 122 rotates to be perpendicular to the side surface of the main body 11, and the front wall 121 is parallel to the main body 11. Because the first shaft 211 and the main body 11 are relatively fixed, the vertical distance between the front wall 121 and the side surface of the main body 11 when the door body 11 is opened to 90 degrees can be calculated based on the distance between the axis of the first shaft 211 and the front wall 121, and the amount of intrusion of the door body 12 at 90 degrees can be determined.

[0239] By limiting the range of -3mm≤B2-A0≤3mm, the intrusion of the door 12 is kept to a minimum, thereby improving the user experience of the refrigeration appliance. For example, B2-A0 can be -3mm, -2mm, -1mm, 0mm, 1mm, 2mm, 3mm, or other values ​​between -3mm and 3mm, and the specific values ​​are not limited here.

[0240] In some embodiments, in order to adapt to the embedded installation requirements of refrigeration equipment with ultra-thin door bodies, the side wall 122 on the door body 12 close to the hinge assembly 2 is very close to the surrounding structure, and the risk of interference with the surrounding structure during the opening and closing process of the door body 12 is relatively high; especially the outer edge 125 where the side wall 122 connects with the front wall 121.

[0241] Therefore, by designing the positions of the first groove 221, the second groove 222, the first axis 211 and the second axis 212 relative to the door body 12, the extent to which the outer edge 125 exceeds the side of the main body 11 during the opening and closing process of the door body 12, that is, the excess amount, can be strictly controlled, thereby reducing the risk of interference.

[0242] In some embodiments, in order to take into account both installation passability and aesthetics, the gap between the refrigeration equipment and surrounding structures such as the cabinet frame is very small; for this reason, the excess amount during the opening and closing process of the door body 12 should not exceed 3mm; for example, the excess amount can be 1mm, 1.5mm, 2mm or other values ​​within 3mm.

[0243] Figure 10 Shown Figure 1 A schematic diagram of the positions of the first and second axes of the door of the refrigeration equipment when the door is in a state of maximum over-box capacity; Figure 14 Shown Figure 1 Schematic diagram of the angle between the first axis and the second axis and the front wall when the door of the refrigeration equipment is in a state of maximum over-box capacity; Figure 18 Shown Figure 1 A schematic diagram of the angles between the tangents of the first and second axis moving trajectories and the front wall when the door of the refrigeration equipment is in a state of maximum over-box capacity; Figure 22 Shown Figure 1 Schematic diagram of the distance between the first axis and the second axis in the door thickness direction when the door of a refrigeration equipment is in a state of maximum over-box capacity.

[0244] See also Figure 10 、 Figure 14 、 Figure 18 and Figure 22 In some embodiments, in order to achieve over-box control within 3 mm, the positions of the first groove 221, the second groove 222, the first axis 211 and the second axis 212 relative to the door body 12 can be controlled when the maximum overhang of the outer edge 125 relative to the side of the main body 11 is achieved.

[0245] When the door body 12 is in the extreme over-the-box position, the distance A1 between the axis of the first shaft 211 and the front wall 121 ranges from 13 mm to 23 mm, the distance B1 between the axis of the first shaft 211 and the side wall 122 ranges from 9 mm to 19 mm, the distance C1 between the axis of the second shaft 212 and the front wall 121 ranges from 19 mm to 29 mm, and the distance D1 between the axis of the second shaft 212 and the side wall 122 ranges from 22 mm to 32 mm. The extreme over-the-box position indicates that the door body 12 has rotated to the position where the distance between the outer edge 125 and the side of the main body 11 is the largest.

[0246] When the door body 12 rotates to the super-box limit position, the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 is small, the hinge assembly 2 itself has a compact structure, and the distance between the hinge assembly 2 and the front wall 121 and the side wall 122 is also small. The matching size of the hinge assembly 2 and the door body 12 is more compact, which facilitates reducing the thickness of the door body 12.

[0247] Among them, when the door body 12 rotates to the over-box limit position, the distance A1 between the axis of the first shaft 211 and the front wall 121 refers to the length of the perpendicular line from the axis of the first shaft 211 to the front wall 121, and the value range is 13mm to 23mm. For example, the distance A1 between the axis of the first shaft 211 and the front wall 121 can be 13mm, 15mm, 17mm, 19mm, 20mm, 22mm, 23mm, or other values ​​between 13mm and 23mm, and is not specifically limited here.

[0248] When the door body 12 is rotated to the over-box limit position, the distance B1 between the axis of the first shaft 211 and the side wall 122 refers to the length of the perpendicular line from the axis of the first shaft 211 to the side wall 122, and the value range is 9mm to 19mm. For example, the distance B1 between the axis of the first shaft 211 and the side wall 122 can be 9mm, 10.8mm, 13mm, 15mm, 17mm, 18mm, 19mm, or other values ​​between 9mm and 19mm, which are not specifically limited here.

[0249] When the door body 12 rotates to the over-box limit position, the distance C1 between the axis of the second shaft 212 and the front wall 121 refers to the length of the perpendicular line from the axis of the second shaft 212 to the front wall 121, and the value range is 19mm to 29mm. For example, the distance C1 between the axis of the second shaft and the front wall 121 can be 19mm, 21mm, 23mm, 25mm, 27mm, 28.3mm, 29mm, or other values ​​between 19mm and 29mm, and is not specifically limited here.

[0250] When the door body 12 is rotated to the over-the-box limit position, the distance D1 between the axis of the second shaft 212 and the side wall 122 refers to the length of a perpendicular line drawn from the axis of the second shaft to the side wall, and the value range is 22mm to 32mm. For example, the distance D1 between the axis of the second shaft 212 and the side wall 122 can be 22mm, 23.6mm, 26mm, 28mm, 30mm, 31mm, 32mm, or other values ​​between 22mm and 32mm, and is not specifically limited here.

[0251] When the door body 12 is in the over-box limit position, the over-box amount of the door body 12 is the largest, and the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 is still small; that is, the arrangement of the first axis 211 and the second axis 212, the first groove 221 and the second groove 222 is relatively compact, so that under the premise of ensuring the rotation angle of the door body 12, the thickness of the door body 12 can be made thinner, meeting the ultra-thin door requirements of the refrigeration equipment.

[0252] In some embodiments, when the door 12 is at the extreme position beyond the box limit, the relative angle between the door 12 and the main body 11 is 25 to 80 degrees. For example, when the door 12 is at the extreme position beyond the box limit, the relative angle between the door 12 and the main body 11 can be 65.9 degrees.

[0253] It is understood that the side of the main body 11 is the surface of the main body 11 close to the cabinet body. When the door body 12 is in the closed state, the side wall 122 can be flush with the side of the main body 11, that is, the outer edge 125 is aligned with the side of the main body 11. When the door body 12 is opened from the closed state, the outer edge 125 will move relative to the main body 11, and when the door body 12 is opened to a certain angle, it will extend outward beyond the side of the main body 11, thereby posing a risk of interference with the surrounding structure of the cabinet body.

[0254] In some embodiments, when the door body 12 is in the over-the-box limit position, the outer edge 125 may also be located inside the side of the main body 11, so that the door body 12 does not extend beyond the side of the main body 11. In this case, the over-the-box amount of the door body 12, that is, the distance between the outer edge 125 and the side of the main body 12, is considered to be a negative value. In this case, the distance between the outer edge 125 and the side of the main body 11 can range from -3mm to 0mm. For example, the over-the-box amount can be -3mm, -2.5mm, -2mm, -1.5mm, -1mm, -0.5mm, or other values ​​between -3mm and 0mm.

[0255] In some embodiments, in order to balance the convenience of installation and low interference risk, when the door body 12 is located at the extreme position of the box, the distance between the outer edge 125 and the surrounding structures such as the cabinet body can be greater than or equal to 1 mm.

[0256] By limiting the distance between the outer edge 125 and surrounding structures such as the cabinet, it is not easy to interfere with surrounding structures such as the cabinet when the outer edge 125 extends the farthest from the side of the main body 11; wherein, the distance between the outer edge 125 and the cabinet can be 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm or other values ​​greater than 1mm.

[0257] In some embodiments, when the door body 12 is located at the over-box limit position, the angle δ1 between the line connecting the axes of the first axis 211 and the second axis 212 and the front wall may range from -51 degrees to -21 degrees.

[0258] It is worth noting that, for the sake of convenience in distinguishing, when the first axis 211 is located on the side of the second axis 212 away from the front wall 121, the angle between the axis line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 is a positive value; when the first axis 211 is located on the side of the second axis 212 close to the front wall 121, the angle between the axis line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 is a negative value.

[0259] When the door body 12 is located at the super-box limit position, the angle δ1 between the line connecting the axes of the first axis 211 and the second axis 212 and the front wall 121 can be -51 degrees, -45 degrees, -40 degrees, -36.3 degrees, -30 degrees, -25 degrees, -21 degrees or other angles between -51 degrees and -21 degrees, which is not specifically limited here.

[0260] In some embodiments, when the door body 12 is in the closed state, the first axis 211 is farthest from the side wall 122. As the door body 12 rotates, the first axis 211 gradually approaches the side wall 122. However, in order to take into account both a large door opening angle and a small-sized hinge assembly 2, during the initial movement phase of the first axis 211 relative to the first slot 221, the first axis 211 simultaneously moves away from the front wall 121, so that overall, the first axis 211 also moves away from the outer edge 125; that is, during the initial opening phase of the door body 12, the distance between the first axis 211 and the outer edge 125 gradually increases. Since the position of the first axis 211 remains unchanged, this means that the outer edge 125 will significantly extend beyond the side of the main body 11, increasing the risk of interference between the outer edge 125 and structures such as the cabinet.

[0261] Therefore, the shape and position of the first groove 211 can be adjusted so that after the door body 12 is opened to the over-box limit position, the distance between the axis of the first axis 211 and the outer edge 125 in the width direction of the main body 11 is less than or equal to 3 mm.

[0262] In some embodiments, when the door body 12 is located at the super-box limit position, the distance W1 between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 12 may range from 5 mm to 15 mm, and the distance M1 between the axis center of the first axis 211 and the axis center of the second axis 212 in the width direction of the door body 12 may range from 5 mm to 15 mm.

[0263] By limiting the distance between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 12, as well as the distance between the axis center of the first axis 211 and the axis center of the second axis 212 in the width direction of the door body 12, the distance between the first axis 211 and the second axis 212 is constrained, so that the layout of the first axis 211 and the second axis 212 is compact and the occupied space is reduced.

[0264] For example, the distance W1 between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 12 can be 5mm, 7mm, 7.8mm, 9mm, 10mm, 12mm, 15mm or other values ​​between 5mm and 15mm, which are not specifically limited here.

[0265] For example, the distance M1 between the axis center of the first axis 211 and the axis center of the second axis 212 in the width direction of the door body 12 can be 5mm, 7mm, 9mm, 10mm, 12mm, 13.7mm, 15mm or other values ​​between 5mm and 15mm, which are not specifically limited here.

[0266] In some embodiments, at the moment when the door body 12 moves to the super-box limit position, the angle α1 between the tangent of the first axis 211 relative to the moving direction of the first slot 221 and the front wall 121 is in the range of -25 degrees to -45 degrees, the angle β1 between the tangent of the second axis 212 relative to the moving direction of the second slot 222 and the front wall 121 is in the range of 50 degrees to 70 degrees, and the angle θ1 between the tangent of the first axis 211 relative to the moving direction of the first slot 221 and the tangent of the second axis 212 relative to the moving direction of the second slot 222 is in the range of 75 degrees to 115 degrees.

[0267] It should be noted here that, for the sake of ease of distinction, when the movement direction of the first axis 211 and the second axis 212 is away from the front wall 121, the angle between the tangent of the movement direction of the first axis 211 relative to the first groove 221 and the tangent of the second axis 212 relative to the second groove 222 and the front wall 121 is positive.

[0268] By limiting the moment when the door body 12 moves to the super-box limit position, the angle α1 between the tangent of the first axis 211 relative to the moving direction of the door body 12 and the front wall 121, the angle β1 between the tangent of the second axis 212 relative to the moving direction of the door body 12 and the front wall 121, and the angle θ1 between the tangents of the first axis 211 and the second axis 212 relative to the moving direction of the door body 12, the moving direction of the outer edge 125 is constrained to move away from the cabinet body when the door body 12 continues to rotate, so as to avoid interference caused by the outer edge 125 being too close to the cabinet body.

[0269] For example, at the moment when the door body 12 moves to the super-box limit position, the angle α1 between the tangent of the first axis 211 and the second axis 212 relative to the movement direction of the door body 12 and the front wall 121 can be -25 degrees, -30 degrees, -35 degrees, -38.8 degrees, -40 degrees, -45 degrees or other angles between -25 degrees and -45 degrees, which are not specifically limited here.

[0270] For example, at the moment when the door body 12 moves to the super-box limit position, the angle β1 between the tangent of the second axis 212 relative to the moving direction of the second slot 222 and the front wall 121 can be 50 degrees, 55 degrees, 60 degrees, 63.2 degrees, 65 degrees, 70 degrees or other angles between 50 degrees and 70 degrees, which are not specifically limited here.

[0271] For example, the angle θ1 between the tangent of the first axis 211 relative to the moving direction of the first groove 221 and the tangent of the second axis 212 relative to the moving direction of the second groove 222 can be 75 degrees, 80 degrees, 90 degrees, 102 degrees, 110 degrees, 115 degrees or other angles between 75 degrees and 115 degrees, which is not specifically limited here.

[0272] In some embodiments, the refrigeration device may be a refrigerator, a freezer, or the like.

[0273] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0274] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0275] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0276] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0277] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0278] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0279] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0280] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A refrigeration device, characterized in that: include: A main body and a door body, wherein the door body includes side walls and a front wall arranged at an angle; The hinge assembly includes a first hinge member and a second hinge member, wherein the first hinge member is provided with a first shaft and a second shaft, and the second hinge member includes a first groove and a second groove that are connected to each other, the first shaft is slidably engaged with the first groove, and the second shaft is slidably engaged with the second groove, the first hinge member is mounted on the main body, and the second hinge member is mounted on the door body; The first groove has a first endpoint, a first inflection point, and a second endpoint; the distances from the first endpoint and the second endpoint to the front wall are both shorter than the distance from the first inflection point to the front wall; the distance from one of the first endpoint and the second endpoint to the side wall is shorter than the distance from the first inflection point to the side wall, and the distance from the other endpoint to the side wall is longer than the distance from the first inflection point to the side wall; The second groove has a third endpoint, a second inflection point, and a fourth endpoint, wherein the distances from the third endpoint and the fourth endpoint to the front wall are both shorter than the distance from the second inflection point to the front wall, and the distance from one of the third endpoint and the fourth endpoint to the side wall is shorter than the distance from the second inflection point to the side wall, and the distance from the other endpoint to the side wall is longer than the distance from the second inflection point to the side wall; Wherein, when the door body is in a state of being opened at 90 degrees, the first axis is located between the first end point and the first inflection point.

2. The refrigeration equipment according to claim 1, characterized in that In the thickness direction of the door body, the overall width range of the first groove and the second groove is 20mm to 30mm, the overall distance from the first groove and the second groove body to the front wall is greater than or equal to 6mm, and the overall distance from the first groove and the second groove body to the side wall is greater than or equal to 4mm.

3. The refrigeration equipment according to claim 1, characterized in that The included angle between the first inflection point and the line connecting the first endpoint and the second endpoint ranges from 100 degrees to 120 degrees, and the included angle between the second inflection point and the line connecting the third endpoint and the fourth endpoint ranges from 90 degrees to 110 degrees.

4. The refrigeration equipment according to claim 1, wherein When the door body is opened to an opening angle of 90 degrees, the angle between the tangent of the movement trajectory of the first shaft relative to the first slot and the front wall is in a range of -25 degrees to -45 degrees.

5. The refrigeration equipment according to claim 1, characterized in that When the door body is opened to an opening angle of 90 degrees, the angle between the tangent of the movement trajectory of the second shaft relative to the second slot and the front wall is in the range of 5 degrees to 25 degrees.

6. The refrigeration equipment according to claim 1, characterized in that When the door body is at an opening angle of 90 degrees, the angle between the axis connecting the first axis and the second axis and the front wall of the door body is -75 degrees to -45 degrees.

7. The refrigeration equipment according to claim 1, characterized in that When the door body is opened to an opening angle of 90 degrees, an angle between a tangent line of the first axis relative to the moving track of the first slot and a tangent line of the second axis relative to the moving track of the second slot is in a range of 30 to 70 degrees.

8. The refrigeration equipment according to claim 1, wherein When the door body is open at 90 degrees, the distance between the axis center of the first axis and the axis center of the second axis in the thickness direction of the door body is 5mm to 15mm, and the distance between the axis center of the first axis and the axis center of the second axis in the width direction of the door body is 5mm to 15mm.

9. The refrigeration equipment according to claim 1, wherein: When the door body is at an opening angle of 90 degrees, the distance between the door body and the main body is 5 mm to 35 mm.

10. The refrigeration device according to any one of claims 1 to 9, characterized in that: When the door body is open at 90 degrees, the distance between the axis center of the first axis and the front wall is 12mm~22mm, the distance between the axis center of the first axis and the side wall is 9mm~19mm, the distance between the axis center of the second axis and the front wall is 28mm~38mm, and the distance between the axis center of the second axis and the side wall is 17mm~27mm.

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