Refrigeration device

Abstract

A refrigeration device, comprising: a main body (11) and a door body (12); and a hinge assembly (2) comprising a first hinge member (21) and a second hinge member (22), wherein a first shaft (211) and a second shaft (212) are provided on the first hinge member (21), the second hinge member (22) comprises a first groove (221) and a second groove (222) which are communicated with each other, the first shaft (211) is in sliding fit with the first groove (221), and the second shaft (212) is in sliding fit with the second groove (222); the first groove (221) is provided with a first end point (221a), a first inflection point (221b), a first intermediate point (221h), a second intermediate point (221i), and a second end point (221c); the second groove (222) is provided with a third end point (222a), a second inflection point (222b), and a fourth end point (222c); and in the process of opening the door body (12) to the maximum extent, the first shaft (211) moves relative to the first groove (221), and the first shaft (211) moves from the first end point (221a), through the first intermediate point (221h), to the second intermediate point (221i), 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 end point (221c).

Description

A refrigeration apparatus Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application No. 2024112421541, filed on September 04, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of refrigeration apparatuses, and in particular to a refrigeration apparatus. BACKGROUND

[0003] With the development of society and the gradual improvement of living quality, people's demand for the installation aesthetics of household refrigeration apparatuses is increasingly prominent. It has become popular to embed refrigeration apparatuses into cabinets, i.e., to form embeddedly installed refrigeration apparatuses, to realize the homogenization of home decoration styles.

[0004] However, in the related art, the embeddedly installed refrigeration apparatuses generally use a double-shaft double-groove hinge to ensure that the door body can be smoothly opened. However, the double-shaft double-groove hinge has a complex structure and occupies a large space, and it is difficult to configure on a thin-specification door body or an oversized door body, which limits the thickness specification of the door body to a certain extent. SUMMARY

[0005] The present disclosure provides a refrigeration apparatus, which is intended to at least be able to solve the technical problem of a large space occupied by a double-shaft double-groove hinge on a refrigeration apparatus to a certain extent.

[0006] In an aspect of the embodiments of the present disclosure, a refrigeration equipment is provided, comprising a main body and a door body, the door body comprising a front wall and a side wall arranged at an angle; and a hinge assembly comprising a first hinge piece and a second hinge piece, the first hinge piece being provided with a first shaft and a second shaft, the second hinge piece comprising a first slot and a second slot in communication with each other, the first shaft being in sliding fit with the first slot, the second shaft being in sliding fit with the second slot, the first hinge piece being mounted on the main body, and the second hinge piece being mounted on the door body. The first slot comprises a first end point, a first inflection point, a first intermediate point, a second intermediate point and a second end point, the first intermediate point being close to the first end point, the second intermediate point being close to the second end point, the distance from the first end point and the second end point to the front wall being less than the distance from the first inflection point to the front wall, and the distance from one of the first end point and the second end point to the side wall being less than the distance from the first inflection point to the side wall, and the distance from the other of the first end point and the second end point to the side wall being greater than the distance from the first inflection point to the side wall. The second slot comprises a third end point, a second inflection point and a fourth end point, the distance from the third end point and the fourth end point to the front wall being less than the distance from the second inflection point to the front wall, and the distance from one of the third end point and the fourth end point to the side wall being less than the distance from the second inflection point to the side wall, and the distance from the other of the third end point and the fourth end point to the side wall being greater than the distance from the second inflection point to the side wall. In the process that the door body is opened from the closed state to the maximum angle, the first shaft moves relative to the first slot, and the first shaft moves from the first end point to the first intermediate point, then moves from the first intermediate point to the second intermediate point, then moves from the second intermediate point to the first intermediate point, and then moves from the first intermediate point to the second end point. The second shaft can move relative to the second slot, and the second shaft moves from the third end point to the second inflection point, and then moves from the second inflection point to the fourth end point. BRIEF DESCRIPTION OF DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0008] FIG. 1 shows a structural schematic diagram of a refrigeration equipment according to some embodiments of the present disclosure;

[0009] FIG. 2 shows a structural schematic diagram of a hinge assembly of the refrigeration equipment in FIG. 1;

[0010] FIG. 3 shows a structural schematic diagram of a first hinge piece of the hinge assembly in FIG. 2;

[0011] Figure 4 shows a schematic view of the cooperation of the first shaft, the second shaft, the first slot and the second slot of the hinge assembly in Figure 2;

[0012] Figure 5 shows a schematic view of the arrangement of the points of the first slot and the second slot in the second hinge piece of the hinge assembly in Figure 2;

[0013] Figure 6 shows a schematic view of the arrangement of the slot segments of the first slot and the second slot in the second hinge piece of the hinge assembly in Figure 2;

[0014] Figure 7 shows a schematic view of the positions of the first shaft and the second shaft when the door body of the refrigeration device in Figure 1 is at a first angle;

[0015] Figure 8 shows a schematic view of the positions of the first shaft and the second shaft when the door body of the refrigeration device in Figure 1 is at a second angle;

[0016] Figure 9 shows a schematic view of the positions of the first shaft and the second shaft when the door body of the refrigeration device in Figure 1 is in a closed state;

[0017] Figure 10 shows a schematic view of the positions of the first shaft and the second shaft when the door body of the refrigeration device in Figure 1 is in a maximum overbox state;

[0018] Figure 11 shows a schematic view of the positions of the first shaft and the second shaft when the door body of the refrigeration device in Figure 1 is in a 90-degree opening state;

[0019] Figure 12 shows a schematic view of the positions of the first shaft and the second shaft when the door body of the refrigeration device in Figure 1 is in a maximum opening state;

[0020] Figure 13 shows a schematic view of the angle between the line connecting the first shaft and the second shaft and the front wall when the door body of the refrigeration device in Figure 1 is in a closed state;

[0021] Figure 14 shows a schematic view of the angle between the line connecting the first shaft and the second shaft and the front wall when the door body of the refrigeration device in Figure 1 is in a maximum overbox state;

[0022] Figure 15 shows a schematic view of the angle between the line connecting the first shaft and the second shaft and the front wall when the door body is in a 90-degree opening state;

[0023] Figure 16 shows a schematic view of the angle between the line connecting the first shaft and the second shaft and the front wall when the door body of the refrigeration device in Figure 1 is in a maximum opening state;

[0024] Figure 17 shows a schematic view of the angle between the tangent of the moving track of the first shaft and the second shaft and the front wall when the door body of the refrigeration device in Figure 1 is in an opening instant;

[0025] Figure 18 shows a schematic view of the angle between the tangent of the moving track of the first shaft and the second shaft and the front wall when the door body of the refrigeration device in Figure 1 is in a maximum overbox state;

[0026] FIG. 19 illustrates an angle between a tangent of a first axis and a second axis moving trajectory and a front wall when the door of the refrigerating appliance of FIG. 1 is in a 90-degree opening state;

[0027] FIG. 20 illustrates an angle between a tangent of a first axis and a second axis moving trajectory and a front wall when the door of the refrigerating appliance of FIG. 1 is in a maximum opening state;

[0028] FIG. 21 illustrates a distance between a first axis and a second axis in a thickness direction of the door when the door of the refrigerating appliance of FIG. 1 is in a closed state;

[0029] FIG. 22 illustrates a distance between a first axis and a second axis in a thickness direction of the door when the door of the refrigerating appliance of FIG. 1 is in a maximum overbox state;

[0030] FIG. 23 illustrates a distance between a first axis and a second axis in a thickness direction of the door when the door of the refrigerating appliance of FIG. 1 is in a 90-degree opening state;

[0031] FIG. 24 illustrates a distance between a first axis and a second axis in a thickness direction of the door when the door of the refrigerating appliance of FIG. 1 is in a maximum opening state;

[0032] FIG. 25 illustrates a distance between the door and the main body when the door of the refrigerating appliance of FIG. 1 is in a closed state;

[0033] FIG. 26 illustrates a distance between the door and the main body when the door of the refrigerating appliance of FIG. 1 is in a maximum overbox state;

[0034] FIG. 27 illustrates a distance between the door and the main body when the door of the refrigerating appliance of FIG. 1 is in a 90-degree opening state;

[0035] FIG. 28 illustrates a distance between the door and the main body when the door of the refrigerating appliance of FIG. 1 is in a maximum opening state;

[0036] FIG. 29 illustrates an angle between an inflection point and an end point of a first groove and a second groove of a hinge assembly of the refrigerating appliance of FIG. 1;

[0037] FIG. 30 illustrates positions of end points of a first groove and a second groove of a hinge assembly of the refrigerating appliance of FIG. 1;

[0038] FIG. 31 illustrates another groove segment structure of a first groove and a second groove of a hinge assembly of the refrigerating appliance of FIG. 1.

[0039] Corresponding relationships between reference numerals and component names in the drawings are as follows:

[0040] 2, hinge assembly; 11, main body; 12, door body; 21, first hinge part; 22, second hinge part; 121, front wall; 122, side wall; 123, top wall; 124, back wall; 125, outer side edge; 126, inner side edge; 211, first shaft; 212, second shaft; 221, first groove; 221a, first end point; 221b, first inflection point; 221c, second end point; 221d, first circular-arc groove segment; 221e, second circular-arc groove segment; 221f, fourth circular-arc groove segment; 221g, second straight groove segment; 221h, first intermediate point; 221i, second intermediate point; 221j, reciprocating movement groove segment; 222, second groove; 222a, third end point; 222b, second inflection point; 222c, fourth end point; 222d, third circular-arc groove segment; 222e, first elliptical-arc groove segment; 222f, first straight groove segment; 222g, fifth circular-arc groove segment; 222h, second elliptical-arc groove segment; 222i, third straight groove segment. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present disclosure.

[0042] In addition, the present disclosure can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0043] The technical solutions of the present disclosure will be described below in conjunction with the drawings and with reference to specific embodiments.

[0044] To achieve the embedded installation of the refrigeration equipment, a double-shaft double-groove hinge is connected between the main body and the door body to facilitate the movement of the door body to the inside of the main body during opening and control the over-box amount of the door body to the outside of the main body. However, the double-shaft double-groove hinge, especially the groove provided on the door body, has a large specification and requires a large installation space, which is not conducive to the application of the double-shaft double-groove hinge on thin or ultra-thin door bodies and also limits the thickness of the door body to some extent. The over-box amount refers to the amount of the door body exceeding the outside of the main body.

[0045] To this end, the application provides a refrigeration device according to some embodiments of the present disclosure, which is intended to solve the technical problem of large volume of the double-shaft double-groove hinge to some extent, so as to reduce the volume of the double-shaft double-groove hinge, improve the application adaptability of the double-shaft double-groove hinge on a thin or ultra-thin specification door body, and take into account the ability of large-angle door opening.

[0046] FIG. 1 shows a structural schematic diagram of a refrigeration device according to some embodiments of the present disclosure; FIG. 2 shows a structural schematic diagram of a hinge assembly of the refrigeration device in FIG. 1; FIG. 3 shows a structural schematic diagram of a first hinge piece of the hinge assembly in FIG. 2; FIG. 4 shows a matching structural schematic diagram of a first shaft, a second shaft, a first groove, and a second groove of the hinge assembly in FIG. 2; FIG. 5 shows an arrangement schematic diagram of each point of the first groove and the second groove in a second hinge piece of the hinge assembly in FIG. 2; and FIG. 6 shows an arrangement schematic diagram of groove segments of the first groove and the second groove in the second hinge piece of the hinge assembly in FIG. 2.

[0047] As shown in FIGS. 1, 2, 3, 4, 5, and 6, in some embodiments, the refrigeration device can include a main body 11 and a door body 12 that are matched. A hinge assembly 2 can be arranged between the door body 12 and the main body 11. The hinge assembly 2 can be a connecting double-shaft double-groove hinge. The double-shaft double-groove hinge can include a first hinge piece 21 and a second hinge piece 22 that are matched. The first hinge piece 21 can be installed on the main body 11. The second hinge piece 22 is installed on the door body 12. The first hinge piece 21 and the second hinge piece 22 can be relatively rotated to enable the door body 12 to be deflected relative to the main body 11 when the door body 12 is opened or closed, so as to block or expose a box opening of the main body 11. The box opening refers to an opening of the main body 11.

[0048] The state in which the door body 12 blocks the box opening of the main body 11 is a closed state. In the closed state, the inner surface of the door body 12 is in close contact with the front surface of the main body 11 to block the main body 11, at which time the included angle between the door body 12 and the main body 11 is 0, and the door opening degree is 0 degrees. The door opening operation can be performed by deflecting the door body 12 to gradually increase the included angle between the door body 12 and the main body 11, i.e., to increase the opening degree; when the door body 12 is continuously deflected to completely expose the box opening of the main body 11, the opening degree is 90 degrees; the door body 12 can be further deflected to increase the opening degree until the limit position of the door body 12 is reached, i.e., the maximum opening degree. Exemplarily, the maximum opening degree of the door body 12 can be 120 degrees, or even a larger opening degree.

[0049] In some embodiments, the door body 12 is a plate-like piece. The door body 12 is provided with a front wall 121 and a side wall 122, the front wall 121 being a side surface away from the main body 11, and the side wall being a circumferential side surface of the door body 12. The front wall 121 and the side wall 122 are adjacent and form an included angle. The second hinge piece 12 can be installed on a top wall 123 of the door body 12, and the top wall 123 intersects with the front wall 121 and the side wall 122, respectively.

[0050] The first hinge piece 21 is provided with a first shaft 211 and a second shaft 212, and the second hinge piece 22 is provided with a first slot 221 and a second slot 222, and the first shaft 211 is slidably embedded in the first slot 221, and the second shaft 212 is also slidably embedded in the second slot 222, so that during the deflection of the door body 12 relative to the main body 11, the first shaft 211 and the first slot 221 are in sliding fit, and the second shaft 212 and the second slot 222 are in sliding fit.

[0051] The first slot 221 includes a first end point 221a, a first inflection point 221b and a second end point 221c, and the first inflection point 221b can be arranged between the first end point 221a and the second end point 221c; and the distance from the first end point 221a and the second end point 221c to the front wall 121 is less than the distance from the first inflection point 221b to the front wall 121, that is, the overall slot type of the first slot 221 is an arched slot, and the slot opening of the arched slot faces the front wall 121.

[0052] Taking the side wall 122 as the reference, the distances from the first end point 221a, the first inflection point 221b and the second end point 221c to the side wall 122 are different; and among the first end point 221a, the first inflection point 221b and the second end point 221c, the distance from one of the first end point 221a and the second end point 221c to the side wall 122 is the largest, and the distance from the other end point to the side wall 122 is the smallest, and the distance from the first inflection point 221b to the side wall 122 is in the middle, neither the largest nor the smallest.

[0053] The second slot 222 includes a third end point 222a, a second inflection point 222b and a fourth end point 222c, and the second inflection point 222b can be arranged between the third end point 222a and the fourth end point 222c; and the distance from the third end point 222a and the fourth end point 222c to the front wall 121 is less than the distance from the second inflection point 222b to the front wall 121, that is, the overall slot type of the second slot 222 is an arched slot, and the slot opening of the arched slot faces the front wall 121.

[0054] Taking the side wall 122 as the reference, the distances from the third end point 222a, the second inflection point 222b and the fourth end point 222c to the side wall 122 are different; and among the third end point 222a, the second inflection point 222b and the fourth end point 222c, the distance from one of the third end point 222a and the fourth end point 222c to the side wall 122 is the largest, and the distance from the other end point to the side wall 122 is the smallest, and the distance from the second inflection point 222b to the side wall 122 is in the middle, neither the largest nor the smallest.

[0055] That is, the inflection points are formed in the first groove 221 and the second groove 222 to form a curved groove, so that a longer groove body can be obtained within a limited range. Therefore, a larger door body deflection angle can be achieved, and a larger door opening angle can be obtained. In addition, while the overall groove length is maintained, the groove body occupying space can be reduced, so that the required installation space in the thickness direction of the door body 12 can be reduced to adapt to the installation requirements of thin specifications or even ultra-thin specifications of the door body. That is, both the large door opening angle and the small installation space can be considered to meet the large door opening angle function on the ultra-thin specification door body.

[0056] Through the arch-shaped structure of the first groove 221 and the second groove 222, and by controlling the distance and positional relationship of 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 20mm-30mm, so that the installation requirements of thin specifications or ultra-thin specifications of the door body can be adapted, and the large door opening angle can be considered.

[0057] The refrigeration equipment provided by the embodiments of the present disclosure adopts a double-shaft double-groove hinge to connect the door body and the main body, supports the door body to deflect relative to the main body, and realizes the opening and closing function of the refrigeration equipment. The double-shaft double-groove hinge is provided with a slidingly matched first shaft and first groove and a second shaft and second groove to realize the movement of the door body to the inside of the main body, limit the overhang of the door body, and thus meet the embedded installation requirements. An inflection point is arranged between the two end points of the first groove and the second groove. The two end points of the first groove and the second groove are close to the front wall of the door body. The inflection points are away from the front wall relative to the two end points, and the distance of the inflection points to the side wall is between the distance of the two end points to the side wall, so that the first groove and the second groove form an arch-shaped groove with the groove opening facing the front wall, and the first shaft and the second shaft move in the direction of moving away from the front wall and then moving close to the front wall. Within a limited area, a longer groove length is obtained, so that the first shaft and the second shaft can form a longer track in the first groove and the second groove, so that a larger door body deflection angle is obtained to a certain extent, and the door body opening degree is expanded. Correspondingly, in the case of the same door body opening degree, the width specification of the arch-shaped first groove and the second groove is reduced, so that the width of the first groove and the second groove in the thickness direction of the door body is correspondingly reduced, and the required installation space is smaller, which can adapt to the installation requirements of thin specifications or ultra-thin specifications of the door body; on the other hand, the thickness of the door body can also be made thinner. In some embodiments, the overall width X of the first groove and the second groove in the thickness direction of the door body can be set to 20mm-30mm, so that the assembly application on thin specifications and ultra-thin specifications of the door body and the large door opening angle can be considered.

[0058] In some embodiments, the overall width of the first slot 221 and the second slot 222 can range from 20mm to 30mm; for example, the overall width of the first slot 221 and the second slot 222 can be 20mm, 22mm, 24mm, 26mm, 28mm, 30mm or other values within the range of 20mm to 30mm, which are not specifically limited herein.

[0059] In some embodiments, considering the inner and outer regions of the front wall 121 and the side wall 122 of the door body 12 or the arrangement of other components, the second hinge part 22 needs to maintain a certain distance from the front wall 121 and the side wall 122 to reduce the risk of interference.

[0060] A distance of at least 6mm can be left between the front wall 121 and the first slot 221 and the second slot 222, i.e., the distance L from the first slot 221 and the second slot 222 to the front wall 121 can be greater than or equal to 6mm.

[0061] A distance of at least 4mm can also be left between the side wall 122 and the first slot 221 and the second slot 222, i.e., the distance N from the first slot 221 and the second slot 222 to the side wall 122 can be greater than or equal to 4mm.

[0062] In some embodiments, in order to limit the width specification of the second hinge part 22 in the thickness direction of the door body, the width of the first slot 221 in the thickness direction of the door body 12 can be limited; and the opening degree of the arched slot of the first slot 221 can be set to be larger, so that the first slot 221 is overall flat, thereby reducing the width of the first slot 221 in the thickness direction of the door body.

[0063] The included angle of the line connecting the first inflection point 221b and the first end point 221a and the second end point 221c can be set to an obtuse angle.

[0064] In some embodiments, in order to limit the width specification of the second hinge part 22 in the reverse direction of the door body thickness, the width of the second slot 222 in the thickness direction of the door body 12 can be limited; and the opening degree of the arched slot of the second slot 222 can be set to be larger, so that the second slot 222 is overall flat, thereby reducing the width of the second slot 221 in the thickness direction of the door body.

[0065] The included angle of the line connecting the second inflection point 222b and the third end point 222a and the fourth end point 222c can be set to an obtuse angle.

[0066] FIG. 29 shows an angle diagram of the inflection points and end points of the first slot and the second slot of the hinge assembly of the refrigeration device in FIG. 1. Referring to FIG. 29, in some embodiments, the angle a1 of the line connecting the first inflection point 221b and the first end point 221a and the second end point 221c can be set to a range of 100 degrees to 120 degrees. For example, 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, which are not specifically limited herein.

[0067] The angle a2 of the line connecting the second inflection point 222b and the third end point 222a and the fourth end point 222c can be set to a range of 90 degrees to 110 degrees. For example, 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, which are not specifically limited herein.

[0068] In some embodiments, in order to balance the large opening of the door body 12 and the small size of the first slot 221, the arched shape of the first slot 221 can be set such that the trajectory of the first shaft 211 and the first slot 221 appears a large angle turn during the sliding cooperation, so that the door body can be opened larger.

[0069] The tangent of the moving trajectory of the first shaft 211 relative to the first slot 221 between the first end point 221a and the first inflection point 221b can form a first angle with the front wall 121. The tangent of the moving trajectory of the first shaft 211 relative to the first slot 221 between the first inflection point 221b and the second end point can form a second angle with the front wall 122. One of the first angle and the second angle is an obtuse angle, and the other is an acute angle.

[0070] In some embodiments, the angle between the trajectory tangent of the first shaft 211 and the front wall 121 refers to the angle between the convex arc side of the trajectory and the front wall 121.

[0071] In some embodiments, in order to balance the large opening of the door body 12 and the small size of the second slot 222, the arched shape of the second slot 222 can be set such that the trajectory of the second shaft 212 and the second slot 222 appears a large angle turn during the sliding cooperation, so that the door body can be opened larger.

[0072] The tangent of the moving trajectory of the second shaft 212 relative to the second slot 222 between the third end point 222a and the second inflection point 222b can form a third angle with the front wall 121. The tangent of the moving trajectory of the second shaft 212 relative to the second slot 222 between the second inflection point 222b and the fourth end point can form a fourth angle with the front wall 122. One of the third angle and the fourth angle is an obtuse angle, and the other is an acute angle.

[0073] In some embodiments, the angle between the tangent of the trajectory of the second shaft 212 and the front wall 121 refers to the angle between the convex arc side of the trajectory and the front wall 121.

[0074] In some embodiments, the first slot 221 can be divided into two slot segments, i.e., a first circular arc slot segment 221d and a second circular arc slot segment 221e. The first circular arc slot segment 221d and the second circular arc slot segment 221e can intersect at a first inflection point 221b. A first end point 221a can be located in the first circular arc slot segment 221d. A second end point 221c can be located in the second circular arc slot segment 221e.

[0075] During the opening process of the door body 12, the first shaft 211 moves along the first circular arc slot segment 221d to the first inflection point 221b. After passing through the first inflection point 221b, the first shaft 211 enters the second circular arc slot segment 221e. During the relative movement between the first shaft 211 and the first slot 221, the trajectory of the first shaft 211 is an arc-shaped trajectory composed of two segments.

[0076] In some embodiments, the second slot 222 can be divided into three slot segments that are sequentially connected, i.e., a third circular arc slot segment 222d, a first elliptical arc slot segment 222e, and a first straight line slot segment 222f. A second inflection point 222b can be located in the first straight line slot segment 222f or the first elliptical arc slot segment 222e. A third end point 222a can be located in the third circular arc slot segment 222d. A fourth end point 222c can be located in the first straight line slot segment 222f.

[0077] 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 line slot segment 222f.

[0078] Referring to FIG. 29, in some embodiments, the first slot 221 and the second slot 222 are arranged adjacent to each other on the second hinge member 22. The distance L1 between the first end point 221a of the first slot 221 and the front wall 121 can be set to a range of 11.4 mm to 17.4 mm. Exemplarily, 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, which is not specifically limited herein.

[0079] The distance L2 between the second end point 221c and the front wall 121 can be set to a range of 8.3 mm to 14.3 mm. Exemplarily, the value of L2 can be 8.3 mm, 9 mm, 11 mm, 13 mm, 14.3 mm, or other values within the range of 8.3 mm to 14.3 mm, which is not specifically limited herein.

[0080] The distance N1 of the first end point 221a to the side wall 122 is set to a range of 16.3mm-22.3mm; for example, N1 can be 16.3mm, 17mm, 19mm, 21mm, 22.3mm, or other values within the range of 16.3mm-22.3mm, which is not specifically limited herein.

[0081] The distance N2 of the second end point 221c to the side wall 122 is set to a range of 6mm-12.3mm; for example, N2 can be 6mm, 7mm, 9mm, 11mm, 12.3mm, or other values within the range of 6mm-12.3mm, which is not specifically limited herein.

[0082] The distance L3 of the third end point 222a of the second groove 222 to the front wall 121 is set to a range of 7mm-12mm; for example, L3 can be 7mm, 9mm, 11mm, 12mm, or other values within the range of 7mm-12mm, which is not specifically limited herein.

[0083] The distance L4 of the fourth end point 222c to the front wall 121 is set to a range of 21.7mm-27.7mm; for example, L4 can be 21.7mm, 23mm, 25mm, 27mm, 27.7mm, or other values within the range of 21.7mm-27.7mm, which is not specifically limited herein.

[0084] The distance N3 of the third end point 222a to the side wall 122 is set to a range of 30mm-36.7mm; for example, N3 can be 30mm, 31mm, 33mm, 35mm, 36.7mm, or other values within the range of 30mm-36.7mm, which is not specifically limited herein.

[0085] The distance N4 of the fourth end point 222c to the side wall 122 is set to a range of 4mm-9mm; for example, N4 can be 4mm, 5mm, 7mm, 9mm, or other values within the range of 4mm-9mm, which is not specifically limited herein.

[0086] In some embodiments, the distance L1 from the first end point 221a of the first slot 221 to the front wall 121 can be set to 14.4 mm. The distance L2 from the second end point 221c to the front wall 121 can be set to 11.3 mm. The distance N1 from the first end point 221a to the side wall 122 can be set to 19.3 mm. The distance N2 from the second end point 221c to the side wall 122 can be set to 6.3 mm. The distance L3 from the third end point 222a of the second slot 222 to the front wall 121 can be set to 9 mm. The distance L4 from the fourth end point 222c to the front wall 121 can be set to 24.7 mm. The distance N3 from the third end point 222a to the side wall 122 can be set to 33.7 mm. The distance N4 from the fourth end point 222c to the side wall 122 can be set to 4.8 mm.

[0087] The included angle a1 of the line connecting the first end point 221a and the second end point 221c with the first inflection point 221b can be set to 100 degrees. The included angle a2 of the line connecting the third end point 222a and the fourth end point 222c with the second inflection point 222b can be set to 110 degrees.

[0088] FIG. 31 shows another slot segment structure of the first slot and the second slot of the hinge assembly of the refrigeration appliance in FIG. 1. As shown in FIG. 31, in some embodiments, the first slot 221 can be divided into two slot segments, i.e., a fourth circular-arc slot segment 221f and a second straight-line slot segment 221g. The fourth circular-arc slot segment 221f and the second straight-line slot segment 221g intersect at the first inflection point 221b. The first end point 221a is located in the fourth circular-arc slot segment 221f. The second end point 221c is located in the second straight-line slot segment 221g.

[0089] During the opening process of the door body 12, the first shaft 211 moves along the fourth circular-arc slot segment 221f to the first inflection point 221b, and then enters the second straight-line slot segment 221g after passing through the first inflection point 221b. During the relative movement between the first shaft 211 and the first slot 221, the trajectory of the first shaft 211 is an arc and a straight line in two segments.

[0090] In some embodiments, the second slot 222 can be divided into three slot segments in sequence, i.e., a fifth circular-arc slot segment 222g, a second elliptical-arc slot segment 222h, and a third straight-line slot segment 222i. The second inflection point 222b can be located in the third straight-line slot segment 222i or the second elliptical-arc slot segment 222h. The third end point 222a is located in the fifth circular-arc slot segment 222g. The fourth end point 222c is located in the third straight-line slot segment 222i.

[0091] During the opening process of the door body 12, the second shaft 212 and the second slot 222 move relative to each other. The second shaft 212 moves along the fifth circular-arc slot segment 222g, the second elliptical-arc slot segment 222h, and the third straight-line slot segment 222i.

[0092] As shown in FIG. 4, FIG. 5 and FIG. 6, in some embodiments, in order to further reduce the overall width of the first slot 221 and the second slot 222 in the thickness direction of the door body 12, the end of the first slot 221 can be communicated with the middle of the second slot 222. To some extent, the structure between the first slot 221 and the second slot 222 is reduced, so as to shorten the distance between the first slot 221 and the second slot 222. The space volume occupied by the first slot 221 and the second slot 222 is reduced, so as to reduce the overall specification of the second hinge part 22. In the case that the door body is in the closed state, the distance between the first shaft 211 and the second shaft 212 and the front wall 121 and the side wall 122 is small, that is, the arrangement of the first shaft 211 and the second shaft 212, the first slot 221 and the second slot 222 is compact, so as to make the thickness of the door body 12 thinner under the premise of ensuring the rotation angle of the door body 12, so as to meet the ultra-thin door requirement of the refrigeration equipment.

[0093] In some embodiments, the first end point 221a of the first slot 221 is communicated with the second slot 222, and the third end point 222a of the second slot 222 is arranged at a distance from the first end point 221a of the first slot 221. In the case that the door body 12 is in the closed state, the first shaft 211 is located at the first end point 221a of the first slot 221, and the second shaft 212 is located at the third end point 222a of the second slot 222.

[0094] It should be noted that the first end point 221a of the first slot 221 and the third end point 222a of the second slot 222 are both starting points. In the case that the door body 12 is in the closed state, the first shaft 211 is located at the first end point 221a, and the second shaft 212 is located at the third end point 222a. The first end point 221a of the first slot 221 is communicated with the middle of the second slot 222, so that the starting position of the first shaft 211 can be closer to the second slot 222. Therefore, the overall structural layout can be more compact, so as to optimize the space occupied by the entire hinge assembly.

[0095] In some embodiments, in order to avoid the communication between the first slot 221 and the second slot 222 causing the first shaft 211 and the second shaft 212 to be misaligned with the first slot 221 and the second slot 222, the distance between the first end point 221a and the second end point 221c can be set to be less than or equal to the distance between the first shaft 211 and the second shaft 212, so as to limit the first shaft 211 from deviating from the first slot 221, and improve the stability of the hinge assembly 2 in operation.

[0096] In some embodiments, the depth of the first slot 221 and the second slot 222 can also be arranged to be misaligned, that is, the depth of the first slot 221 is less than the depth of the second slot 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 slot 222 and lower than the slot bottom of the first slot 221, so as to prevent the second shaft 212 from moving into the first slot 221.

[0097] In some embodiments, in order to further reduce the size of the first slot 221, a reciprocating slot segment 221j can be arranged in the first slot 221, and the distance between the first slot 221 and the second slot 222 is arranged to be such that the first shaft 211 reciprocates in the reciprocating slot segment 221j of the first slot 221 during the opening of the door, so that the length of the first slot 221 can be relatively reduced, and the thickness space occupied can be reduced.

[0098] Therefore, the first slot 221 further comprises a first intermediate point 221h and a second intermediate point 221i. 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 arranged between the first inflection point 221b and the second end point 221c. The reciprocating slot segment 221j is between the first intermediate point 221h and the second intermediate point 221i.

[0099] During the opening of the door body 12, the first shaft 211 moves from the first end point 221a to the second end point 221c. The first shaft 211 moves through the first intermediate point 221h, the first inflection point 221b, and then moves to the second intermediate point 221i. Then, the first shaft 211 moves from the second intermediate point 221i to the first intermediate point 221h, and after passing through the first inflection point 221 and moving to the first intermediate point 221h, it turns back again and moves to the second intermediate point 221i. After the first shaft 211 moves through the first intermediate point 221h, it continues to move to the second intermediate point 221i, and in the process, the first shaft 211 moves through the first inflection point 221b, the second intermediate point 221i, and finally moves to the second end point 221c.

[0100] During the opening of the door body 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 222a to the fourth end point 222c, and in the process, the second shaft 212 passes through the second inflection point 222b.

[0101] FIG. 7 shows a schematic view of the positions of the first shaft and the second shaft when the door body of the refrigeration device in FIG. 1 is at a first angle; and FIG. 8 shows a schematic view of the positions of the first shaft and the second shaft when the door body of the refrigeration device in FIG. 1 is at a second angle.

[0102] As shown in FIGS. 7 and 8, in some embodiments, the distance L5 from the first intermediate point 221h to the front wall 121 is in the range of 16mm to 21mm. For example, the distance L5 from the first intermediate point 221h to the front wall 121 can be 16mm, 17.2mm, 18mm, 18.8mm, 20mm, 21mm, or other values in the range of 16mm to 21mm, which is not specifically limited here.

[0103] The distance N5 of the first intermediate point 221h to the side wall 122 ranges from 8mm to 14mm. Exemplarily, the distance N5 of the first intermediate point 221h to the side wall 122 can be 8mm, 9mm, 10mm, 10.6mm, 12mm, 13mm, 14mm or other values within the range from 8mm to 14mm, which are not specifically limited herein.

[0104] The distance L6 of the second intermediate point 221i to the front wall 121 ranges from 17mm to 22mm. Exemplarily, the distance L6 of the second intermediate point 221i to the front wall 121 can be 17mm, 18mm, 19mm, 19.4mm, 21mm, 22mm or other values within the range from 17mm to 22mm, which are not specifically limited herein.

[0105] The distance N6 of the second intermediate point 221i to the side wall 122 ranges from 9mm to 14mm. Exemplarily, the distance N6 of the second intermediate point 221i to the side wall 122 can be 9mm, 10mm, 11.4mm, 12mm, 13mm, 14mm or other values within the range from 9mm to 14mm, which are not specifically limited herein.

[0106] In some embodiments, when the first axis 211 moves from the first endpoint 221a to the first intermediate point 221h, the distance L7 of the second axis 212 to the front wall 121 ranges from 24mm to 27mm. Exemplarily, the distance L7 of the second axis 212 to the front wall 121 can be 24mm, 25mm, 25.9mm, 27mm or other values within the range from 24mm to 27mm, which are not specifically limited herein.

[0107] When the first axis 211 moves from the first endpoint 221a to the first intermediate point 221h, the distance N7 of the second axis 212 to the side wall 122 can range from 22mm to 26mm. Exemplarily, the distance N7 of the second axis 212 to the side wall 122 can be 22mm, 23mm, 24mm, 24.7mm, 26mm or other values within the range from 22mm to 26mm, which are not specifically limited herein.

[0108] In some embodiments, when the first axis 211 moves from the second intermediate point 221i to the second endpoint 221c, the distance L8 of the second axis 212 to the front wall 121 ranges from 30mm to 34mm. Exemplarily, the distance L8 of the second axis 212 to the front wall 121 can be 30mm, 31mm, 31.9mm, 33mm, 34mm or other values within the range from 30mm to 34mm, which are not specifically limited herein.

[0109] When the first shaft 211 moves from the second intermediate point 221i to the second end point 221c, the distance N8 between the second shaft 212 and the side wall 122 ranges from 20mm to 22mm. Exemplarily, the distance N8 between the second shaft 212 and the side wall 122 is 20mm, 21mm, 22mm or other values within the range of 20mm to 22mm, which is not specifically limited herein.

[0110] In some embodiments, the risk of interference between the door body 12 and the main body 11 can be reduced by designing the trajectory of the groove section, and a large door opening angle can be considered to some extent.

[0111] The stage in which the first shaft 211 moves from the first end point 221a to the first intermediate point 221h can be set as a stage in which the first shaft 211 relatively moves away from the front wall 121. The stage in which the first shaft 211 moves from the second intermediate point 221i to the second end point 221c can be set as a stage in which the first shaft 211 relatively moves towards the front wall 121. The stage in which the second shaft 212 moves from the third end point 222a to the second inflection point 222b can be set as a stage in which the second shaft 212 relatively moves away from the front wall 121. The stage in which the second shaft 212 moves from the second inflection point 222b to the fourth end point 222c can be set as a stage in which the second shaft 212 relatively moves towards the front wall 121.

[0112] Through the above-mentioned groove, in the initial stage of opening the door, the first shaft 211 and the second shaft 212 both move away from the front wall 121, so that the door body 12 has a tendency to move away from the main body 11, thereby avoiding interference between the door body 12 and the main body 11. In the intermediate stage of opening the door body 12 from the closed state to the maximum angle, the first shaft 211 forms a retreat stage in the movement direction relative to the first groove 221. The retreat stage is set to effectively control the overbox amount of the door body 12 in the rotating process, and cooperate with the movement of the second shaft 212 to quickly rotate and open the door body 12, reduce the space occupied by the running track of the first shaft 211 in the rotating process of the door body 12, and thus facilitate the reduction of the space occupied by the entire hinge assembly 2. In the final stage of opening the door body 12 from the closed state to the maximum angle, the first shaft 211 and the second shaft 212 both move towards the front wall 121, so as to facilitate the large-angle opening of the door body 12.

[0113] On the other hand, the total movement trajectories of the first shaft 211 and the second shaft 212 relative to the first groove 221 and the second groove 222 both have a turning shape, which further reduces the occupation of the space in the thickness direction of the door body 12 by the first shaft 211 and the second shaft 212 in the relative movement process, so that the thickness of the door body 12 can be thinner. Not only the mass of the door body 12 can be lighter, but also the thickness distribution of the entire refrigeration equipment is optimized.

[0114] Referring to FIG. 5, FIG. 6, FIG. 7 and FIG. 8, in some embodiments, during the opening and closing of the door body 12, when the opening degree 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 groove 221 between the first intermediate point 221h and the second intermediate point 221i. In some embodiments, the first angle Q1 is smaller than the second angle Q2. During the opening of the door body 12, the door body 12 first rotates to the first angle Q1 and then rotates to the second angle Q2; during the closing of the door body, the door body first returns to the second angle Q2 and then returns to the first angle Q1.

[0115] During the opening of the door body 12 from the closed state to the first angle Q1, the first shaft 211 moves from the first end point 221a to the first intermediate point 221h; that is, when the opening degree of the door body 12 is the first angle Q1, the first shaft 211 is at the first intermediate point 221h in the first groove 221.

[0116] During the opening of the door body 12 from the first angle Q1 to the second angle Q2, the first shaft 211 moves from the first intermediate point 221h through the first inflection point 221b to the second intermediate point 221i; that is, when the opening degree of the door body 12 is the second angle Q2, the first shaft 211 is at the second intermediate point 221i in the first groove 221.

[0117] In some embodiments, during the opening of the door body 12 from the closed state to the third angle, the second shaft moves from the third end point 222a to the second inflection point 222b; that is, when the door body 12 is at the third angle, the second shaft 212 is at the second inflection point 222b.

[0118] In some embodiments, the third angle is greater than the second angle; that is, during the opening of the door body 12, when the first shaft 211 reciprocates relative to the first groove 221, the second shaft 212 moves from the third end point 222a to the second inflection point 222b; only when the first shaft 211 moves from the second intermediate point 221i to the second end point 221c and the door body is opened to the third angle, the second shaft 212 moves to the second inflection point 222b. Before the door body 12 is opened to the third angle, the second shaft 212 is relatively far away from the front wall 121, and after the second shaft 212 moves through the second inflection point 222b, it is close to the front wall 121 again; so that the door body 12 can be further deflected with the first shaft 211 as the axis, further expanding the opening degree of the door body.

[0119] In some embodiments, during the process that the door body 12 is opened from the first angle Q1 to the second angle Q2, the first shaft 211 moves from the first intermediate point 221h to the second intermediate point 221i, then from the second intermediate point 221i to the first intermediate point 221h, and then from the first intermediate point 221h to the second intermediate point 221i again. In some embodiments, the second angle Q2 is greater than the first angle Q1, and the third angle is greater than the second angle.

[0120] In some embodiments, due to the rotation principle of the double-shaft double-slot hinge, the center of deflection of the door body 12 relative to the main body 11 changes during the opening and closing process of the door body 12, and the center of deflection of the door body 12 does not stably locate at a certain point or multiple points on the hinge, but at a virtual rotation center outside the door body 12.

[0121] 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 shaft 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 shaft 211.

[0122] During the process that 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 side of the axis center line of the first shaft 211 and the second shaft 212 away from the side wall 122, and gradually approaches the axis of the first shaft 211 with the rotation of the door body 12, 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 shaft 211. During the process that the door body 12 is opened from the first angle Q1 to the second angle, the virtual rotation center of the door body 12 is located at the side of the axis center line of the first shaft 211 and the second shaft 212 close to the side wall 122, and first moves away and then approaches, until the door body 12 is rotated to the first angle Q1, the first shaft 211 retreats to the limit position, and the virtual rotation center of the door body 12 is coaxial with the first shaft 211. During the process that the door body 12 is continuously rotated from the third angle to the maximum angle, the virtual rotation center of the door body 12 returns to the side of the axis center line of the first shaft 211 and the second shaft 212 away from the side wall.

[0123] In some embodiments, the first angle Q1 can be in the range of 30 degrees to 70 degrees; for example, the first angle Q1 can 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, which are not specifically limited here.

[0124] The second angle Q2 can be in the range of 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 in the range of 60 degrees to 100 degrees, which are not limited herein.

[0125] The third angle can be in the range of 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 in the range of 70 degrees to 110 degrees, which are not limited herein.

[0126] In some embodiments, the slot shape between the first intermediate point 221h and the first end point 221a is arc-shaped, the slot shape between the first intermediate point 221h and the second intermediate point 221i is arc-shaped, and the slot shape between the second intermediate point 221i and the second end point 221c is arc-shaped transitioning to linear shape.

[0127] Therefore, during the opening of the door body 12, the moving track of the first shaft 211 corresponding to the first slot 221 is arc-shaped, linear, and arc-shaped, respectively. That is, the first shaft 211 moves in an arc-shaped track between the first angle Q1 and the second angle Q2. In the case where the distance between the first shaft 211 and the second shaft 212 remains unchanged, the second shaft 212 can smoothly move away from the front wall 121 along the second slot 222, thereby obtaining a larger opening degree.

[0128] In some embodiments, the slot shape between the third end point 222a and the second inflection point 222b is arc-shaped transitioning to linear shape, and the slot shape between the second inflection point 222b and the fourth end point 222c is arc-shaped, so that in the case where the distance between the first shaft 211 and the second shaft 212 remains unchanged, the second shaft 212 can smoothly move away from the front wall 121 along the second slot 222 when the first shaft 211 reciprocates, thereby obtaining a larger opening degree.

[0129] FIG. 30 shows 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 device in FIG. 1.

[0130] Referring to FIG. 30, in some embodiments, the first slot 221 and the second slot 222 are communicated, and the distance L1 from the first end point 221a of the first slot 221 to the front wall 121 can be in the range of 7 mm to 17 mm. For example, L1 can be 7 mm, 9 mm, 12 mm, 15 mm, 17 mm, or other values in the range of 7 mm to 17 mm, which are not limited herein.

[0131] The distance L2 of the second end point 221c to the front wall 121 can be set to a range of 6mm to 14mm. For example, L2 can be 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, or any other value within the range of 6mm to 14mm, without limitation.

[0132] The distance N1 of the first end point 221a to the side wall 122 can be set to a range of 14mm to 24mm. For example, N1 can be 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, or any other value within the range of 14mm to 24mm, without limitation.

[0133] The distance N2 of the second end point 221c to the side wall 122 can be set to a range of 4mm to 11.5mm. For example, N2 can be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11.5mm, or any other value within the range of 4mm to 11.5mm, without limitation.

[0134] The distance L3 of the third end point 222a of the second slot 222 to the front wall 121 can be set to a range of 6mm to 13mm. For example, L3 can be 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, or any other value within the range of 6mm to 13mm, without limitation.

[0135] The distance L4 of the fourth end point 222c to the front wall 121 can be set to a range of 18mm to 28mm. For example, L4 can be 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, or any other value within the range of 18mm to 28mm, without limitation.

[0136] The distance N3 of the third end point 222a to the side wall 122 can be set to a range of 27mm to 37mm. For example, N3 can be 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, or any other value within the range of 27mm to 37mm, without limitation.

[0137] The distance N4 of the fourth end point 222c to the side wall 122 is set to be in the range of 4mm-11mm. Exemplarily, the distance N4 can be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm or other values in the range of 4mm-11mm, which are not limited herein.

[0138] In some embodiments, the first slot 221 and the second slot 222 are in communication, the distance L1 of the first end point 221a of the first slot 221 to the front wall 121 is set to be 16.5mm, the distance L2 of the second end point 221c to the front wall 121 is set to be 8.6mm, the distance N1 of the first end point 221a to the side wall 122 is set to be 17.7mm, and the distance N2 of the second end point 221c to the side wall 122 is set to be 6.7mm; the distance L3 of the third end point 222a of the second slot 222 to the front wall 121 is set to be 8.7mm, the distance L4 of the fourth end point 222c to the front wall 121 is set to be 24.4mm, the distance N3 of the third end point 222a to the side wall 122 is set to be 31.5mm, and the distance N4 of the fourth end point 222c to the side wall 122 is set to be 6.6mm.

[0139] The angle a1 between the first inflection point 221b and the line connecting the first end point 221a and the second end point 221c is set to be in the range of 90.1 degrees. The angle a2 between the second inflection point 222b and the line connecting the third end point 222a and the fourth end point 222c is set to be in the range of 110.1 degrees.

[0140] In some embodiments, the width of the first slot 221 and the second slot 222 in the thickness direction of the door body 12 is in the range of 20mm-30mm; correspondingly, the thickness of the door body 12 is in the range of 42mm-60mm, so that the door body 12 can be an ultra-thin specification.

[0141] In some embodiments, the greater the width of the first slot 221 and the second slot 222 in the thickness direction of the door body 12, the thicker the thickness of the door body 12. The structure of the second hinge part 22 is compact, and the door body can be adapted to be an ultra-thin door body, thereby reducing the space occupied by the door body on the entire refrigeration equipment. The capacity of the entire refrigeration equipment can be increased under the same volume. The thickness of the entire refrigeration equipment can be reduced under the same capacity.

[0142] The thickness S of the door body 12 is in the range of 42mm-60mm. Exemplarily, the thickness S of the door body 12 can be 42mm, 45mm, 47mm, 50mm, 52mm, 55mm, 58mm, 60mm or other values in the range of 42mm-60mm, which are not limited herein.

[0143] Figure 9 shows a schematic view of the positions of the first axis and the second axis in the closed state of the door body of the refrigeration device of Figure 1. As shown in 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 defining 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 the closed state, the distances of the first axis 211 and the second axis 212 to the front wall 121 and the side wall 122 are small. While the hinge assembly itself is compact, the spacing between the hinge assembly 2 and the front wall 121 and the side wall 122 is also small, and the fitting size of the hinge assembly 2 and the door body 12 is more compact, so as to reduce the thickness of the door body 12.

[0144] In some embodiments, the distance between the axis center of the first axis 211 and the front wall 121 refers to the length of the perpendicular line 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 the perpendicular line 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 the perpendicular line 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 the perpendicular line from the axis center of the second axis 212 to the side wall 122.

[0145] The spacing A0 between the axis center of the first axis 211 and the front wall 121 can be 10mm-20mm; for example, the spacing A0 between the axis center of the first axis 211 and the front wall 121 can be 10mm, 12mm, 14mm, 16mm, 18mm, 19mm, 19.5mm, 20mm; or other values between 10mm-20mm, which are not limited herein.

[0146] The spacing B0 between the axis center of the first axis 211 and the side wall 122 can be 17mm-27mm; for example, the spacing 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-27mm, which are not limited herein.

[0147] The spacing C0 between the axis center of the second axis 212 and the front wall 121 can be 6mm-16mm; for example, the spacing 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-16mm, which are not limited herein.

[0148] The distance D0 between the axis of the second shaft 212 and the side wall 122 is 30-40 mm. For example, the distance D0 between the axis 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 within the range of 30-40 mm, which are not limited herein.

[0149] FIG. 17 shows a schematic diagram of the angles between the tangents of the moving tracks of the first and second shafts and the front wall at the moment when the door body of the refrigeration device in FIG. 1 is opened. Referring to FIG. 17, in some embodiments, by defining the moment when the door body 12 is opened from the closed state, the angles a0 and b0 between the tangents of the moving tracks of the first and second shafts 211 and 212 relative to the front wall 121 are defined to constrain the moving track of the door body 12 when the door body 12 is opened, so as to avoid interference between the door body 12 and the surrounding structure.

[0150] In some embodiments, at the moment when the door body 12 is opened, the angle a0 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the front wall 121 at the first end point ranges from 20-40 degrees. For example, at the moment when the door body 12 is opened, the angle a0 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the front wall 121 at the first end point can be 20 degrees, 22 degrees, 25 degrees, 28.7 degrees, 30 degrees, 32 degrees, 35 degrees, 40 degrees, or other values within the range of 20-40 degrees, which are not limited herein.

[0151] At the moment when the door body 12 is opened, the angle b0 between the tangent of the moving track of the second shaft 212 relative to the second slot 222 and the front wall 121 at the third end point 222a ranges from 40-60 degrees. For example, at the moment when the door body 12 is opened, the angle b0 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the front wall 121 at the first end point can be 40 degrees, 42 degrees, 45 degrees, 50 degrees, 52.8 degrees, 55 degrees, 57 degrees, 60 degrees, or other values within the range of 40-60 degrees, which are not limited herein.

[0152] In some embodiments, the angle b0 between the tangents of the moving tracks of the first and second shafts 211 and 212 relative to the front wall 121 at the moment when the door body 12 is opened from the closed state can also be defined to further constrain the moving track of the door body 12 when the door body 12 is opened, so as to further reduce the risk of interference between the door body and the surrounding structure.

[0153] The angle θ0 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the tangent of the moving track of the second shaft 212 relative to the second slot 222 can range from 20 degrees to 40 degrees. For example, the angle θ0 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the tangent of the moving track of the second shaft 212 relative to the second slot 222 can be 20 degrees, 22 degrees, 25 degrees, 28.7 degrees, 30 degrees, 32 degrees, 35 degrees, 40 degrees or any other value between 20 degrees and 40 degrees, which is not limited herein.

[0154] In some embodiments, when the door body 12 is in the closed state, the first shaft 211 is spaced apart from the first end point 221a of the first slot 221, and the second shaft 212 is spaced apart from the third end point 222a of the second slot 222, i.e., there is a gap between the first shaft 211 and the first end point 221a, and there is a gap between the second shaft 212 and the third end point 222a.

[0155] By spacing at least one of the first shaft 211 and the second shaft 212 from the corresponding first end point 221a and third end point 222a, a certain negative door closing angle can be obtained when the door body 12 is in the closed state, thereby ensuring the sealing performance of the door body 12 when it is closed.

[0156] FIG. 13 shows a schematic diagram of the angle between the line connecting the first shaft and the second shaft and the front wall when the door body of the refrigeration device in FIG. 1 is in the closed state.

[0157] Referring to FIG. 13, in some embodiments, the angle between the line connecting the axis centers of the first shaft 211 and the second shaft 212 and the front wall 121 of the door body 12 is limited, so as to control the movement track of the door body 12 when it starts to rotate from the closed state, thereby avoiding interference between the door body 12 and the surrounding structure, such as the cabinet body, when it is opened.

[0158] During the process of opening the door body 12 from the closed state, the angle δ between the line connecting the axis centers of the first shaft 211 and the second shaft 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 line connecting the axis centers of the first shaft 211 and the second shaft 212 is parallel to the front wall 121.

[0159] It should be noted that, for the purpose of distinction, the angle between the line connecting the axis centers of the first shaft 211 and the second shaft 212 and the front wall 121 is positive when the first shaft 211 is located on the side of the second shaft 212 away from the front wall 121. The angle between the line connecting the axis centers of the first shaft 211 and the second shaft 212 and the front wall 121 is negative when the first shaft 211 is located on the side of the second shaft 212 close to the front wall 121.

[0160] In the case that the door body 12 is in the closed state, the first axis 211 and the second axis 212 can be located at the first end point 221a and the third end point 222a respectively, and 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 is in the range of 15 degrees to 45 degrees. Exemplarily, in the case that the door body 12 is in the 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 can 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, which are not limited herein.

[0161] FIG. 21 shows a schematic diagram of the distance between the first axis and the second axis in the thickness direction of the door body in the closed state of the door body of the refrigeration equipment in FIG. 1.

[0162] Referring to FIG. 21, in some embodiments, the distance between the first axis 211 and the second axis 212 is constrained 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, so as to make the layout of the first axis 211 and the second axis 212 compact.

[0163] In the case that the door body 12 is in the closed state, the distance W0 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 is in the range of 0 mm to 10 mm. Exemplarily, in the case that the door body 12 is in the closed state, the distance W0 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 0 mm, 1 mm, 2 mm, 4 mm, 6 mm, 7.8 mm, 8 mm, 10 mm or other values between 0 mm and 10 mm, which are not limited herein.

[0164] In the case that the door body 12 is in the closed state, the distance M0 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 is in the range of 5 mm to 15 mm. Exemplarily, in the case that the door body 12 is in the closed state, the distance M0 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 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 limited herein.

[0165] FIG. 25 shows a schematic diagram of the distance between the door body and the main body in the closed state of the door body of the refrigeration equipment in FIG. 1.

[0166] As shown in FIG. 25, in some embodiments, a flexible sealing member such as a door seal is arranged between the door body 12 and the main body 11 to ensure the sealing effect of the refrigeration device. Therefore, the door body 12 is provided with a rear wall 124 corresponding to the front wall 121, and the door seal can be mounted on the rear wall 124. In order to leave a mounting space for the door seal and reduce the risk of interference between the door body 12 and the main body 11 during opening of the door body 12, the distance between the door body 12 and the main body 11 should be maintained.

[0167] In the case where 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 herein.

[0168] FIG. 11 shows a schematic view of the positions of the first axis and the second axis of the door body of the refrigeration device in FIG. 1 when the door body is in a 90-degree opening state.

[0169] Referring to FIG. 11, in some embodiments, by limiting the 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 distances from the first axis 211 and the second axis 212 to the front wall 121 and the side wall 122 are small. While 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 small. The cooperation size between the hinge assembly 2 and the door body 12 is more compact, so as to reduce the thickness of the door body 12.

[0170] 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 in a 90-degree opening state, which is the most commonly used opening angle of the door body 12. By limiting the distances between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 at this position, the opening of the door body 12 to 90 degrees is controlled. In the case where the distance between the refrigeration device installed in the embedded manner and the surrounding structure such as the cabinet is very small, the relative position of the door body 12 is controlled so as not to be too large in the amount of intrusion or the amount of invasion, which facilitates the use of the user when the door body 12 is normally opened.

[0171] In some embodiments, the distance between the axis center of the first axis 211 and the front wall 121 refers to the length of the perpendicular line drawn from the axis center of the first axis 211 to the front wall 121. The distance between the axis center of the first axis 211 and the side wall 122 refers to the length of the 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 the perpendicular line drawn from the axis center of the second axis 212 to the front wall 121. The distance between the axis center of the second axis 212 and the side wall 122 refers to the length of the perpendicular line drawn from the axis center of the second axis 212 to the side wall 122.

[0172] The distance A2 between the axis of the first shaft 211 and the front wall 121 can be 12mm-22mm when the door body 12 is at the 90-degree opening state. For example, the distance A2 can be 12mm, 14mm, 16mm, 18mm, 19.5mm, 20mm, 22mm or other values between 12mm and 22mm, which are not limited herein.

[0173] The distance B2 between the axis of the first shaft 211 and the side wall 122 can be 9mm-19mm when the door body 12 is at the 90-degree opening state. For example, the distance B2 can be 9mm, 11mm, 11.2mm, 13mm, 15mm, 17mm, 19mm or other values between 9mm and 19mm, which are not limited herein.

[0174] The distance C2 between the axis of the second shaft 212 and the front wall 121 can be 28mm-38mm when the door body 12 is at the 90-degree opening state. For example, the distance C2 can be 28mm, 29mm, 31mm, 33mm, 34.5mm, 35mm, 36mm, 37mm, 38mm or other values between 28mm and 38mm, which are not limited herein.

[0175] The distance D2 between the axis of the second shaft 212 and the side wall 122 can be 17mm-27mm when the door body 12 is at the 90-degree opening state. For example, the distance D2 can be 17mm, 19mm, 21mm, 22mm, 23mm, 25mm, 27mm or other values between 17mm and 27mm, which are not limited herein.

[0176] FIG. 19 shows a schematic diagram of the angle between the tangent of the moving track of the first shaft and the second shaft of the door body of the refrigeration device in FIG. 1 and the front wall when the door body is at the 90-degree opening state.

[0177] Referring to FIG. 19, in some embodiments, by limiting the angle α2 between the tangent of the moving track of the first shaft 211 relative to the door body 12 and the front wall 121, the angle β2 between the tangent of the moving track of the second shaft 212 relative to the door body 12, and the angle θ2 between the tangent of the moving track of the first shaft 211 and the second shaft 212 relative to the door body 12 at the moment when the door body 12 is opened to the 90-degree opening state, the moving track of the door body 12 when being opened can be constrained to avoid interference between the door body 12 and the surrounding structure.

[0178] In some embodiments, the angle a2 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the front wall 121 at the moment when the door body 12 is opened to 90 degrees is in the range of -25 degrees to -45 degrees. For example, the angle a2 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the front wall 121 at the moment when the door body 12 is opened to 90 degrees can be -25 degrees, -30 degrees, -34.9 degrees, -40 degrees, -45 degrees, or other values between -25 degrees and -45 degrees, which are not limited herein.

[0179] The angle β2 between the tangent of the moving track of the second shaft 212 relative to the second slot 222 and the front wall 121 at the moment when the door body 12 is opened to 90 degrees is in the range of 5 degrees to 25 degrees. For example, the angle β2 between the tangent of the moving track of the second shaft 212 relative to the second slot 222 and the front wall 121 at the moment when the door body 12 is opened to 90 degrees can be 5 degrees, 10 degrees, 15 degrees, 17.1 degrees, 20 degrees, 25 degrees, or other values between 5 degrees and 25 degrees, which are not limited herein.

[0180] In some embodiments, the angle θ2 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the tangent of the moving track of the second shaft 212 relative to the second slot 222 at the moment when the door body 12 is opened from the closed state can also be defined to further constrain the opening of the door body so as to further reduce the risk of interference between the door body and the surrounding structure.

[0181] The angle θ2 between the tangent of the moving track of the first shaft 211 relative to the first slot 221 and the tangent of the moving track of the second shaft 212 relative to the second slot 222 at the moment when the door body 12 is opened from the closed state can also be defined to further constrain the opening of the door body so as to further reduce the risk of interference between the door body and the surrounding structure.

[0182] FIG. 15 shows a schematic diagram of the angle between the line connecting the first shaft and the second shaft and the front wall when the door body is in the 90-degree opening state.

[0183] As shown in FIG. 15, in some embodiments, the angle δ between the line connecting the axis centers of the first shaft 211 and the second shaft 212 and the front wall 121 of the door body 12 is defined to facilitate the control of the moving track of the door body 12 when it starts to rotate from the closed state, thereby avoiding the interference between the door body 12 and the surrounding structure, such as the cabinet body, when it is opened.

[0184] In the case that the door body 12 is at the 90-degree opening, the angle δ2 between the line connecting the axis centers of the first shaft 211 and the second shaft 212 and the front wall 121 of the door body 12 ranges from -75 degrees to -45 degrees. For example, in the case that the door body 12 is at the 90-degree opening, the angle δ2 between the line connecting the axis centers of the first shaft 211 and the second shaft 212 and the front wall of the door body 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, which are not limited herein.

[0185] FIG. 23 shows a schematic diagram of the distance between the first shaft and the second shaft in the thickness direction of the door body of the refrigeration device in FIG. 1 when the door body is at the 90-degree opening.

[0186] Referring to FIG. 23, in some embodiments, the distance between the first shaft 211 and the second shaft 212 is constrained by limiting the distance W 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 and the distance M 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, so as to make the layout of the first shaft 211 and the second shaft 212 compact.

[0187] In the case that the door body 12 is at the 90-degree opening, 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, in the case that the door body 12 is at the 90-degree opening, 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, which are not limited herein.

[0188] In the case that the door body 12 is at the 90-degree opening, 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, in the case that the door body 12 is at the 90-degree opening, 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 other values between 5 mm and 15 mm, which are not limited herein.

[0189] FIG. 27 shows a schematic diagram of the distance between the door body and the main body of the refrigeration device in FIG. 1 when the door body is at the 90-degree opening.

[0190] Referring to FIG. 27, in some embodiments, a flexible sealing member such as a door seal is arranged between the door body 12 and the main body 11 to ensure the sealing effect of the refrigeration device. Therefore, the door body 12 is provided with a rear wall 124 corresponding to the front wall 121, and the door seal can be mounted on the rear wall 124. In order to leave a mounting space for the door seal and reduce the risk of interference between the door body 12 and the main body 11 during opening of the door body 12, the distance between the door body 12 and the main body 11 should be maintained.

[0191] In the case where the door body 12 is in a 90-degree state, the distance P2 between the rear wall 124 of the door body 12 and the main body 11 can be in the range of 5mm to 35mm. For example, when the opening degree of the door body 12 is 90 degrees, the distance P2 between the door body 12 and the main body 11 can be 5mm, 10mm, 15mm, 20mm, 24.3mm, 30mm, 35mm or other values between 5mm and 35mm, which is not limited herein.

[0192] FIG. 12 shows a schematic view of the positions of the first axis and the second axis of the door body of the refrigeration device in FIG. 1 in a maximum opening state.

[0193] Referring to FIG. 12, in some embodiments, based on the usage habit, the opening degree of the door body 12 can also be greater than 90 degrees, such as 120 degrees, or even a larger degree. This makes the specification design and installation position of the hinge assembly 2 and the door body 12 have a more delicate cooperation, so as to take into account the large opening degree and the ultra-thin specification performance of the door body, especially in the embedded installation working condition.

[0194] It is worth noting that the maximum relative angle between the door body 12 and the main body 11 is that the door body is opened to the maximum angle, and the maximum relative angle between the door body 12 and the main body 11 is greater than 90 degrees. After the door body is opened to 90 degrees, the door body 12 can continue to be opened to the maximum angle to facilitate user use, because the door body 12 has a certain gap with the surrounding structure such as the cabinet. 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. In the case where the embedded refrigeration device and the surrounding structure such as the cabinet have a small distance, it is ensured that the maximum angle is sufficient for user use, and to a certain extent, the relative position of the door body 12 does not invade too much, which reduces the risk of interference during use.

[0195] The distance between the first shaft 211 and the second shaft 212 and the front wall 121 and the side wall 122 can be small by limiting the arrangement position of the first shaft 211 and the second shaft 212 relative to the door body 12 in the maximum opening state of the door body 12. The distance between the hinge assembly 2 and the front wall 121 and the side wall 122 is small while the structure of the hinge assembly 2 is compact. The cooperation size between the hinge assembly 2 and the door body 12 is more compact, so as to reduce the thickness of the door body 12.

[0196] The distance A3 between the axis of the first shaft 211 and the front wall 121 in the maximum opening state of the door body 12 can be in the range of 7mm to 17mm. For example, the distance A3 between the axis of the first shaft 211 and the front wall 121 can be 7mm, 9mm, 11mm, 11.6mm, 13mm, 15mm, 17mm, or other values between 7mm and 17mm, which are not limited herein.

[0197] The distance B3 between the axis of the first shaft 211 and the side wall 122 in the maximum opening state of the door body 12 can be in the range of 4.5mm to 14.5mm. For example, the distance B3 between the axis of the first shaft 211 and the side wall 122 can be 4.5mm, 6mm, 8mm, 9.7mm, 12mm, 14mm, 14.5mm, or other values between 4.5mm and 14.5mm, which are not limited herein.

[0198] The distance C3 between the axis of the second shaft 212 and the front wall 121 in the maximum opening state of the door body 12 can be in the range of 21mm to 31mm. For example, the distance C3 between the axis of the second shaft 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 limited herein.

[0199] The distance D3 between the axis of the second shaft 212 and the side wall 122 in the maximum opening state of the door body 12 can be in the range of 4mm to 14mm. For example, the distance D3 between the axis of the second shaft 212 and the side wall 122 can be 4mm, 6mm, 8mm, 9.6mm, 10mm, 12mm, 14mm, or other values between 4mm and 14mm, which are not limited herein.

[0200] FIG. 20 shows a schematic diagram of the angle between the tangent of the moving track of the first shaft and the second shaft in the maximum opening state of the door body of the refrigeration equipment in FIG. 1 and the front wall.

[0201] Referring to FIG. 20, in some embodiments, by defining the angle a3 between the tangent of the moving track of the first axis 211 and the front wall 121 and the angle b3 between the tangent of the moving track of the second axis 212 and the front wall 121 at the moment when the door body 12 is opened to the maximum opening degree, the moving track of the door body 12 when opened can be constrained, and the intrusion amount of the door body 12 into the inside of the main body can be limited to avoid interference between the door body 12 and the surrounding structure.

[0202] In some embodiments, the angle a3 between the tangent of the moving track of the first axis 211 and the front wall 121 at the first end point at the moment when the door body 12 is opened to the maximum opening degree can be in the range of -120 degrees to -140 degrees. For example, the angle a3 between the tangent of the moving track of the first axis 211 and the front wall 121 at the second end point at the moment when the door body 12 is opened to the maximum opening degree can be -120 degrees, -125 degrees, -129 degrees, -133 degrees, -135 degrees, -140 degrees, or other values between -120 degrees and -140 degrees, which are not limited herein.

[0203] The angle b3 between the tangent of the moving track of the second axis 212 and the front wall 121 at the fourth end point 222c at the moment when the door body 12 is opened to the maximum opening degree can be in the range of -55 degrees to -75 degrees. For example, the angle b3 between the tangent of the moving track of the second axis 212 and the front wall 121 at the fourth end point 222c at the moment when the door body 12 is opened to the maximum opening degree can be -55 degrees, -60 degrees, -65 degrees, -67 degrees, -70 degrees, -75 degrees, or other values between -55 degrees and -75 degrees, which are not limited herein.

[0204] In some embodiments, the angle a3 between the tangent of the moving track of the first axis 211 and the front wall 121 at the first end point at the moment when the door body 12 is opened to the maximum opening degree can be in the range of -120 degrees to -140 degrees. For example, the angle a3 between the tangent of the moving track of the first axis 211 and the front wall 121 at the second end point at the moment when the door body 12 is opened to the maximum opening degree can be -120 degrees, -125 degrees, -129 degrees, -133 degrees, -135 degrees, -140 degrees, or other values between -120 degrees and -140 degrees, which are not limited herein.

[0205] The angle a3 between the tangent of the moving track of the first axis 211 and the front wall 121 at the first end point at the moment when the door body 12 is opened to the maximum opening degree can be in the range of -120 degrees to -140 degrees. For example, the angle a3 between the tangent of the moving track of the first axis 211 and the front wall 121 at the second end point at the moment when the door body 12 is opened to the maximum opening degree can be -120 degrees, -125 degrees, -129 degrees, -133 degrees, -135 degrees, -140 degrees, or other values between -120 degrees and -140 degrees, which are not limited herein.

[0206] FIG. 16 shows a schematic diagram of the angle between the first axis and the second axis and the front wall of the door body of the refrigeration device in FIG. 1 when the door body is at the maximum opening degree.

[0207] Referring to FIG. 16, in some embodiments, the angle δ between the first axis 211 and the second axis 212 and the front wall 121 of the door body 12 is defined so as to control the movement track of the door body 12 when the door body 12 starts to rotate from the closed state, thereby avoiding interference between the door body 12 and the surrounding structure, such as the cabinet body, when the door body 12 is opened.

[0208] During the process of opening the door body 12 from the closed state, the angle between 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 first axis 211 and the second axis 212 are parallel to the front wall 121.

[0209] It should be noted that, for the purpose of distinction, the angle between the first axis 211 and the second axis 212 and the front wall 121 is positive when the first axis 211 is located on the side of the second axis 212 away from the front wall 121, and the angle between the first axis 211 and the second axis 212 and the front wall 121 is negative when the first axis 211 is located on the side of the second axis 212 close to the front wall 121.

[0210] When the door body 12 is at the maximum opening degree, the first axis 211 and the second axis 212 can be located at the second end point 221c and the fourth end point 222c, respectively. The angle δ3 between the first axis 211 and the second axis 212 and the front wall of the door body 12 ranges from -105 degrees to -75 degrees. Exemplarily, when the door body 12 is at the maximum opening degree, the angle δ3 between the first axis 211 and the second axis 212 and the front wall of the door body 12 can 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, which are not limited herein.

[0211] In some embodiments, the maximum relative angle between the door body 12 and the main body 11 can be 115 degrees to 125 degrees. Exemplarily, 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 limited herein.

[0212] FIG. 24 shows a schematic diagram of the distance between the first axis and the second axis in the thickness direction of the door body of the refrigeration device in FIG. 1 when the door body is at the maximum opening degree.

[0213] Referring to FIG. 4 and FIG. 24, in some embodiments, the distance between the first shaft 211 and the second shaft 212 is constrained by defining the distance W between the shaft center of the first shaft 211 and the shaft center of the second shaft 212 in the thickness direction of the door body 12, and the distance M between the shaft center of the first shaft 211 and the shaft center of the second shaft 212 in the width direction of the door body, so as to make the layout of the first shaft 211 and the second shaft 212 compact.

[0214] In the case where the door body 12 is at the maximum opening degree, the distance W3 between the shaft center of the first shaft 211 and the shaft center of the second shaft 212 in the thickness direction of the door body 12 ranges from 10 mm to 25 mm. Exemplarily, in the case where the door body 12 is at the maximum opening degree, the distance W3 between the shaft center of the first shaft 211 and the shaft 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, which are not limited herein.

[0215] In the case where the door body 12 is at the maximum opening degree, the distance M3 between the shaft center of the first shaft 211 and the shaft center of the second shaft 212 in the width direction of the door body 12 ranges from 0 mm to 5 mm. Exemplarily, in the case where the door body 12 is at the maximum opening degree, the distance M3 between the shaft center of the first shaft 211 and the shaft center of 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 other values between 0 mm and 5 mm, which are not limited herein.

[0216] FIG. 28 shows a schematic view of the distance between the door body and the main body of the refrigeration equipment in FIG. 1 when the door body is at the maximum opening degree.

[0217] Referring to FIG. 28, in some embodiments, considering that a flexible sealing member such as a door seal is arranged between the door body 12 and the main body 11 to ensure the sealing effect of the refrigeration equipment. Therefore, the door body 12 is provided with a rear wall 124 corresponding to the front wall 121, and the door seal can be installed on the rear wall 124. In order to leave a mounting space for the door seal and reduce the risk of interference between the door body 12 and the main body 11 during opening of the door body 12, the distance between the door body 12 and the main body 11 should be maintained.

[0218] In the case where the door body 12 is at the maximum opening degree, the distance P3 between the rear wall 124 of the door body 12 and the main body 11 ranges from 5 mm to 30 mm. Exemplarily, in the case where the door body 12 is at the maximum opening degree, the distance P3 between the door body 12 and the main body 11 can 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 herein.

[0219] In some embodiments, in order to adapt to the embedded installation requirement of the refrigeration equipment of the ultra-thin specification door body, the intrusion amount of the door body 12, that is, the amplitude of the movement of the door body 12 to the inside of the main body 11, should be strictly controlled to avoid interference with the structure such as the drawer inside the main body 11.

[0220] When the door body 12 is in the closed position, the intrusion amount can be set to 0; as the door body 12 is opened, the door body 12 is deflected and moves to the inside of the main body 11, and the intrusion amount gradually increases. For ease of description, the intrusion amount is the inward movement of the inner side edge 126 of the door body 12 relative to the initial position.

[0221] Considering that the opening degree of the door body 12 is 90 degrees, which is the most commonly used opening degree, the inward movement of the inner side edge 126 relative to the side surface of the main body 11 can be set as the limit intrusion amount when the opening degree of the door body is greater than 90 degrees.

[0222] Therefore, the intrusion amount of the door body 12 can be limited to less than 63 mm, and the intrusion amount of the door body 12 is controlled in a smaller range, thereby improving the user experience. Exemplarily, the intrusion amount 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.

[0223] In some embodiments, the intrusion amount of the door body 12 is 56.5 mm. The vertical distance between the front wall 121 of the door body 12 and the side surface of the main body 11 is only 1 mm. The small intrusion amount of the door body 12 makes the user experience better.

[0224] In some embodiments, when the door body 12 is in the closed state, the distance A0 between the axis of the first shaft 211 and the front wall 121, and when the relative opening degree of the door body 12 and the main body 11 is 90 degrees, the distance B2 between the first shaft 211 and the side wall 122, can satisfy: -3 mm≤B2-A0≤3 mm.

[0225] It is worth noting that when the door body 12 is in the closed state, the side wall 122 of the door body 12 is aligned with the side surface of the main body 11, and 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 degree of the door body 12 and the main body 11 is 90 degrees, at this time the side wall 122 is rotated to be perpendicular to the side surface of the main body 11, and the front wall 121 is parallel to the main body 11, and because the first shaft 211 is relatively fixed with the main body 11. The vertical distance between the front wall 121 and the side surface of the main body 11 in the state that the door body 12 is opened to 90 degrees can be calculated through the distance between the axis of the first shaft 211 and the front wall 121, and then the intrusion amount of the door body 12 in the 90-degree state can be determined.

[0226] By limiting -3mm≤B2-A0≤3mm, the intrusion amount of the door body 12 is controlled within a very small range, thereby improving the use experience of the refrigeration equipment. Exemplarily, B2-A0 can be -3mm, -2mm, -1mm, 0mm, 1mm, 2mm, 3mm, or other values between -3mm and 3mm, which are not limited herein.

[0227] In some embodiments, in order to adapt to the embedded installation requirements of the refrigeration equipment with an ultra-thin specification door body, the side wall 122 of the door body 12 is close to the peripheral structure near the hinge assembly 2, and there is a greater risk of interference with the peripheral structure during the opening and closing of the door body 12, especially the outer side edge 125 at the junction of the side wall 122 and the front wall 121.

[0228] Therefore, by designing the positions of the first groove 221, the second groove 222, the first shaft 211 and the second shaft 212 relative to the door body 12, the amplitude of the outer side edge 125 exceeding the side surface of the main body 11, i.e., the over-box amount, during the opening and closing of the door body 12 can be strictly controlled, thereby reducing the risk of interference.

[0229] In some embodiments, in order to balance the installation passability and aesthetics, the gap between the refrigeration equipment and the cabinet frame and other peripheral structures is very small; therefore, the over-box amount during the opening and closing of the door body 12 should not exceed 3mm; exemplarily, the over-box amount can be 1mm, 1.5mm, 2mm, or other values within 3mm.

[0230] FIG. 10 shows a schematic diagram of the positions of the first shaft and the second shaft of the door body of the refrigeration equipment in FIG. 1 in the maximum over-box amount state; FIG. 14 shows a schematic diagram of the angle between the connecting line of the first shaft and the second shaft of the door body of the refrigeration equipment in FIG. 1 and the front wall in the maximum over-box amount state; FIG. 18 shows a schematic diagram of the angle between the tangent of the moving track of the first shaft and the second shaft of the door body of the refrigeration equipment in FIG. 1 and the front wall in the maximum over-box amount state; and FIG. 22 shows a schematic diagram of the distance between the first shaft and the second shaft of the door body of the refrigeration equipment in FIG. 1 in the thickness direction of the door body in the maximum over-box amount state.

[0231] As shown in FIGS. 10, 14, 18 and 22, in some embodiments, in order to achieve the control of the over-box amount within 3mm, the positions of the first groove 221, the second groove 222, the first shaft 211 and the second shaft 212 relative to the door body 12 can be controlled when the maximum over-amount of the outer side edge 125 relative to the side surface of the main body 11.

[0232] In the case that the door body 12 is located at the over-box limit position, the distance A1 between the axis of the first shaft 211 and the front wall 121 is in the range of 13mm-23mm, the distance B1 between the axis of the first shaft 211 and the side wall 122 is in the range of 9mm-19mm, the distance C1 between the axis of the second shaft 212 and the front wall 121 is in the range of 19mm-29mm, and the distance D1 between the axis of the second shaft 212 and the side wall 122 is in the range of 22mm-32mm. The over-box limit position means that the door body 12 is rotated to the position where the distance between the outer side edge 125 and the side surface of the main body 11 is the largest.

[0233] When the door body 12 is rotated to the over-box limit position, the distances between the first shaft 211 and the second shaft 212 and the front wall 121 and the side wall 122 are small, the structure of the hinge assembly 2 is compact, the distance between the hinge assembly 2 and the front wall 121 and the side wall 122 is small, and the cooperation size between the hinge assembly 2 and the door body 12 is compact, so that the thickness of the door body 12 can be reduced. The door body 12 located at the over-box limit position means that the door body 12 is located at the position where the distance from the main body 11 is the largest.

[0234] In some embodiments, when the door body 12 is rotated to the over-box limit position, the distance A1 between the axis of the first shaft 211 and the front wall 121 is the length of the perpendicular line from the axis of the first shaft 211 to the front wall 121, and is in the range of 13mm-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, which are not limited herein.

[0235] 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 is the length of the perpendicular line from the axis of the first shaft 211 to the side wall 122, and is in the range of 9mm-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 limited herein.

[0236] When the door body 12 is rotated to the over-box limit position, the distance C1 between the axis of the second shaft 212 and the front wall 121 is the length of the perpendicular line from the axis of the second shaft 212 to the front wall 121, and is in the range of 19mm-29mm. For example, the distance C1 between the axis of the second shaft 212 and the front wall 121 can be 19mm, 21mm, 23mm, 25mm, 27mm, 28.3mm, 29mm, or other values between 19mm and 29mm, which are not limited herein.

[0237] When the door body 12 rotates to the over-box limit position, the distance D1 between the axis of the second shaft 212 and the side wall 122 refers to the length of the perpendicular line from the axis of the second shaft to the side wall, and the value range is 22mm-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, which is not limited herein.

[0238] 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 shaft 211 and the second shaft 212 and the front wall 121 and the side wall 122 is still small, that is, the arrangement of the first shaft 211, the second shaft 212, the first groove 221 and the second groove 222 is relatively compact. Under the premise of ensuring the rotation angle of the door body 12, the thickness of the door body 12 can be made thinner to meet the ultra-thin door requirement of the refrigeration equipment.

[0239] In some embodiments, when the door body 12 is in the over-box limit position, the relative angle between the door body 12 and the main body 11 is 25 degrees-80 degrees. For example, when the door body 12 is in the over-box limit position, the relative angle between the door body 12 and the main body 11 can be 65.9 degrees.

[0240] It can be understood that the side of the main body 11 is the surface of the main body 11 close to the cabinet, and 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 side 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 side edge 125 will move relative to the main body 11, and when the door body 12 is opened to a certain angle, it will protrude outward beyond the side of the main body 11, thereby there is a risk of interference with the peripheral structure of the cabinet.

[0241] In some embodiments, when the door body 12 is in the over-box limit position, the outer side edge 125 can also be located inside the side of the main body 11, so that the door body 12 does not protrude beyond the side of the main body 11, and at this time the over-box amount of the door body 12, that is, the distance between the outer side edge 125 and the side of the main body 11, is identified as a negative value. At this time, the distance between the outer side edge 125 and the side of the main body 11 can be-3mm-0mm. For example, the over-box amount can be-3mm, -2.5mm, -2mm, -1.5mm, -1mm, -0.5mm or other values between-3mm and 0mm.

[0242] In some embodiments, in order to balance the convenience of installation and the lower risk of interference, when the door body 12 is in the over-box limit position, the distance between the outer side edge 125 and the peripheral structure of the cabinet can be greater than or equal to 1mm.

[0243] By limiting the distance between the outer side edge 125 and the surrounding structure such as the cabinet, the outer side edge 125 is less likely to interfere with the surrounding structure when the outer side edge 125 extends the farthest from the side of the main body 11. In some embodiments, the distance between the outer side edge 125 and the cabinet can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, or other values greater than 1 mm.

[0244] In some embodiments, when the door body 12 is in the super-box limit position, the angle δ1 between the line connecting the centers of the first shaft 211 and the second shaft 212 and the front wall can range from -51 degrees to -21 degrees.

[0245] It is worth noting that, for ease of distinction, when the first shaft 211 is on the side of the second shaft 212 away from the front wall 121, the angle between the line connecting the centers of the first shaft 211 and the second shaft 212 and the front wall 121 is positive; when the first shaft 211 is on the side of the second shaft 212 close to the front wall 121, the angle between the line connecting the centers of the first shaft 211 and the second shaft 212 and the front wall 121 is negative.

[0246] In some embodiments, when the door body 12 is in the super-box limit position, the angle δ1 between the line connecting the centers of the first shaft 211 and the second shaft 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 are not limited herein.

[0247] In some embodiments, when the door body 12 is in the closed state, the first shaft 211 is farthest from the side wall 122. As the door body 12 rotates, the first shaft 211 gradually approaches the side wall 122. However, in order to balance the large opening angle and the small size of the hinge assembly 2, during the initial movement stage of the first shaft 211 relative to the first groove 221, the first shaft 211 also moves away from the front wall 121, so that overall, the first shaft 211 also moves away from the direction of the outer side edge 125; that is, during the initial stage of opening the door body 12, the distance between the first shaft 211 and the outer side edge 125 gradually increases, and since the position of the first shaft 211 does not change, it means that the outer side edge 125 will greatly exceed the side of the main body 11, increasing the risk of interference between the outer side edge 125 and the cabinet structure.

[0248] Therefore, the shape and position of the first groove 211 can be adjusted so that the distance between the center of the first shaft 211 and the outer side edge 125 in the width direction of the main body 11 is less than or equal to 3 mm when the door body 12 is opened to the super-box limit position.

[0249] In some embodiments, when the door body 12 is located at the over-box limit position, the distance W1 between the axis of the first shaft 211 and the axis of the second shaft 212 in the thickness direction of the door body 12 can be in the range of 5mm-15mm, and the distance M1 between the axis of the first shaft 211 and the axis of the second shaft 212 in the width direction of the door body 12 can be in the range of 5mm-15mm.

[0250] By limiting the distance W1 between the axis of the first shaft 211 and the axis of the second shaft 212 in the thickness direction of the door body 12, and the distance M1 between the axis of the first shaft 211 and the axis of the second shaft 212 in the width direction of the door body 12, the distance between the first shaft 211 and the second shaft 212 is constrained, and the layout of the first shaft 211 and the second shaft 212 is compact, and the occupied space is reduced.

[0251] Exemplarily, the distance W1 between the axis of the first shaft 211 and the axis of the second shaft 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-15mm, which are not limited herein.

[0252] Exemplarily, the distance M1 between the axis of the first shaft 211 and the axis of the second shaft 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-15mm, which are not limited herein.

[0253] In some embodiments, at the moment when the door body 12 moves to the over-box limit position, the angle α1 between the tangent of the moving direction of the first shaft 211 relative to the first slot 221 and the front wall 121 can be in the range of -25 degrees to -45 degrees, the angle β1 between the tangent of the moving direction of the second shaft 212 relative to the second slot 222 and the front wall 121 can be in the range of 50 degrees to 70 degrees, and the angle θ1 between the tangent of the moving direction of the first shaft 211 relative to the first slot 221 and the tangent of the moving direction of the second shaft 212 relative to the second slot 222 can be in the range of 75 degrees to 115 degrees.

[0254] It should be noted here that, for the purpose of distinction, when the moving direction of the first shaft 211 and the second shaft 212 is the direction away from the front wall 121, the angle between the tangent of the moving direction of the first shaft 211 relative to the first slot 221 and the front wall 121 is positive, and the angle between the tangent of the moving direction of the second shaft 212 relative to the second slot 222 and the front wall 121 is positive.

[0255] By limiting the angle α1 between the tangent of the moving direction of the first shaft 211 relative to the moving direction of the door body 12 and the front wall 121, the angle β1 between the tangent of the moving direction of the second shaft 212 relative to the moving direction of the door body 12 and the front wall 121, and the angle θ1 between the tangent of the moving direction of the first shaft 211 and the second shaft 212 relative to the moving direction of the door body 12 at the moment when the door body 12 moves to the over-limit position, the moving direction of the outer side edge 125 is away from the cabinet body when the door body 12 continues to rotate, so that the distance between the outer side edge 125 and the cabinet body is prevented from being too close to cause interference.

[0256] For example, at the moment when the door body 12 moves to the over-limit position, the angle α1 between the tangent of the moving direction of the first shaft 211 and the second shaft 212 relative to the moving 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 limited herein.

[0257] For example, at the moment when the door body 12 moves to the over-limit position, the angle β1 between the tangent of the moving direction of the second shaft 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 limited herein.

[0258] For example, the angle θ1 between the tangent of the moving direction of the first shaft 211 relative to the moving direction of the first slot 221 and the tangent of the moving direction of the second shaft 212 relative to the moving direction of the second slot 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 are not limited herein.

[0259] In some embodiments, the refrigeration device can be a refrigerator, a freezer, or the like.

[0260] According to the embodiments of the present disclosure, a refrigeration equipment is provided. The refrigeration equipment adopts a double-shaft double-groove hinge to connect a door body and a main body, supports the door body to deflect relative to the main body, and realizes the opening and closing functions of the refrigeration equipment. The double-shaft double-groove hinge is provided with a slidingly matched first shaft and first groove and a second shaft and second groove, so as to realize the movement of the door body to the inside of the main body, limit the amount of the door body exceeding the main body, and thus meet the embedded installation requirement. A turning point is arranged between the two end points of the first groove and the second groove. The two end points of the first groove and the second groove are close to the front wall of the door body, the turning points are away from the front wall relative to the two end points, and the distance from the turning points to the side wall is between the distances from the two end points to the side wall. In this way, the first groove and the second groove form an arched groove with the groove opening facing the front wall, and the first shaft and the second shaft move to the direction of moving away from the front wall and then moving close to the front wall, so as to obtain a longer groove length in a limited area, and thus the first shaft and the second shaft can form a longer track in the first groove and the second groove, so as to obtain a larger door body deflection angle to some extent, and thus the door body opening degree can be expanded. Correspondingly, in the case of the same door body opening degree, 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 thickness direction of the door body is correspondingly reduced, the required installation space is smaller, and the installation requirement of a thin specification or an ultra-thin specification door body can be met; on the other hand, the thickness of the door body can also be made thinner. The first intermediate point and the second intermediate point can also be arranged in the first groove, so that in the process that the door body is opened from the closed state to the maximum angle, the first shaft moves from the first end point to the first intermediate point, then moves to the second intermediate point from the first intermediate point, then moves from the second intermediate point to the first intermediate point, and then moves from the first intermediate point to the second end point, forming a reciprocating track. In this way, the specifications of the first groove can be shortened to some extent, so that the overall space occupation is reduced, and thus the assembly application on the thin specification and the ultra-thin specification door body and the large opening door angle can be considered.

[0261] In the present disclosure, unless explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0262] In the description of the present disclosure, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0263] It should be noted that all directional indications in the embodiments of the present disclosure are only used to explain the relative positional relationship, motion condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0264] In the present disclosure, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0265] In addition, the description such as "first", "second" and the like in the present disclosure is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first", "second" can include one or more of the features explicitly or implicitly. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0266] In the description of the present disclosure, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does 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 the present specification.

[0267] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present disclosure.

[0268] Although the embodiments of the present disclosure have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and deformations can be made to the embodiments without departing from the principles and purposes of the present disclosure, and the scope of the present disclosure is defined by the claims and their equivalents.

Claims

1. A refrigeration appliance comprising: a main body and a door body, the door body comprising a front wall and a side wall arranged at an angle; and a hinge assembly comprising a first hinge member and a second hinge member, the first hinge member being provided with a first shaft and a second shaft, the second hinge member comprising a first slot and a second slot in communication with each other, the first shaft being in sliding engagement with the first slot, the second shaft being in sliding engagement with the second slot, the first hinge member being mounted on the main body, the second hinge member being mounted on the door body; wherein the first slot comprises a first end point, a first inflection point, a first intermediate point, a second intermediate point and a second end point, the first intermediate point being proximate to the first end point, the second intermediate point being proximate to the second end point, the first end point and the second end point being at a distance from the front wall that is less than the distance of the first inflection point from the front wall, and one of the first end point and the second end point being at a distance from the side wall that is less than the distance of the first inflection point from the side wall, the other of the first end point and the second end point being at a distance from the side wall that is greater than the distance of the first inflection point from the side wall; the second slot comprising a third end point, a second inflection point and a fourth end point, the third end point and the fourth end point being at a distance from the front wall that is less than the distance of the second inflection point from the front wall, and one of the third end point and the fourth end point being at a distance from the side wall that is less than the distance of the second inflection point from the side wall, the other of the third end point and the fourth end point being at a distance from the side wall that is greater than the distance of the second inflection point from the side wall; during opening of the door body from a closed state to a maximum angle, the first shaft moves relative to the first slot such that the first shaft moves from the first end point to the first intermediate point, then from the first intermediate point to the second intermediate point, and then from the second intermediate point to the first intermediate point, and then from the first intermediate point to the second end point; the second shaft is movable relative to the second slot such that the second shaft moves from the third end point to the second inflection point, and then from the second inflection point to the fourth end point.

2. The refrigeration appliance of claim 1, wherein, during opening of the door body from the closed state to a first angle, the first shaft moves from the first end point to the first intermediate point; during opening of the door body from the closed state to a third angle, the second shaft moves from the third end point to the second inflection point; wherein the third angle is greater than the first angle.

3. The refrigeration appliance of claim 2, wherein, during opening of the door body from the first angle to a second angle, the first shaft moves from the first intermediate point to the second intermediate point, and then from the second intermediate point to the first intermediate point, and then from the first intermediate point to the second intermediate point; wherein the second angle is greater than the first angle, and the third angle is greater than the second angle.

4. The refrigeration appliance of claim 2 or 3, wherein, when the door body is opened to the first angle, a virtual center of rotation of the door body is located at the first intermediate point.

5. The refrigeration appliance of claim 3 or 4, wherein, when the door body is opened to the second angle, a virtual center of rotation of the door body is located at the second intermediate point.

6. The refrigeration appliance of any of claims 3-5, wherein, the first angle ranges from 30 degrees to 70 degrees, the second angle ranges from 60 degrees to 100 degrees, and the third angle ranges from 70 degrees to 110 degrees.

7. The refrigeration appliance of any of claims 1-6, wherein, The groove shape between the first intermediate point and the first end point is arc-shaped, the groove shape between the first intermediate point and the second intermediate point is arc-shaped, and the groove shape between the second intermediate point and the second end point is arc-shaped and transitions to straight line shape.

8. The refrigeration appliance of any of claims 1-7, wherein, The groove shape between the third end point and the second inflection point is arc-shaped and transitions to straight line shape, and the groove shape between the second inflection point and the fourth end point is arc-shaped.

9. The refrigeration appliance of any of claims 1-8, wherein, In the process that the door body is opened from the closed state to the maximum angle, the intrusion amount of the door body is less than or equal to 63 mm, and the out-of-box amount of the door body is less than or equal to 3 mm.

10. The refrigeration appliance of any of claims 1-9, wherein, The thickness of the door body is 42 mm-60 mm.

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