Refrigeration apparatus

Abstract

Disclosed in the present application is a refrigeration apparatus, which is embedded and installed within an on-site foundation. The refrigeration apparatus comprises: a main body and a door, wherein the door comprises a side wall and a front wall which are arranged at an included angle; and a hinge assembly, which comprises a first hinge member and a second hinge member, wherein the first hinge member is provided with a first shaft and a second shaft, the first shaft being in sliding engagement with a first groove, and the second shaft being in sliding engagement with a second groove, the first hinge member being mounted on the main body, and the second hinge member being mounted on the door. The first groove has a first end point, a first turning point and a second end point. In the direction of thickness of the door, the overall width of the first groove and the second groove ranges from 20 mm to 30 mm. In the refrigeration apparatus provided in the present application, the hinge assembly has a compact layout and occupies minimal space, enabling smooth opening of the door of the embedded refrigeration apparatus, while also allowing for a reduced door thickness.

Description

Refrigeration apparatus

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202422177046.2, filed on September 04, 2024, entitled “A refrigeration apparatus”, which is incorporated by reference herein in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the technical field of refrigeration apparatuses, and in particular relates to a refrigeration apparatus. BACKGROUND

[0004] With the development of society and the gradual improvement of living quality, people's demand for the installation aesthetics of household refrigeration apparatuses is also increasingly prominent. Embedding a refrigeration apparatus in a cabinet, i.e., forming an embedded refrigeration apparatus to realize the homogenization of home decoration styles has become popular.

[0005] However, in the related art, the refrigeration apparatus installed in an embedded manner generally uses a double-shaft double-groove hinge to ensure that the door body can be smoothly opened. However, the double-shaft double-groove hinge structure is complex 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

[0006] The present application 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.

[0007] In an aspect of the present application, a refrigeration apparatus is provided, which comprises:

[0008] a main body and a door body, the door body comprising a side wall and a front wall arranged at an angle;

[0009] 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 first shaft being in sliding fit with the first groove, the second shaft being in sliding fit with the second groove, the first hinge piece being installed on the main body, and the second hinge piece being installed on the door body;

[0010] wherein the first groove has a first end point, a first inflection point and a second end point, the distance from the first end point and the second end point to the front wall is 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 is 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 is greater than the distance from the first inflection point to the side wall;

[0011] The second groove has a third end point, a second inflection point and a fourth end point, distances from the third end point and the fourth end point to the front wall are both less than a distance from the second inflection point to the front wall, and a distance from one of the third end point and the fourth end point to the side wall is less than a distance from the second inflection point to the side wall, and a distance from the other of the third end point and the fourth end point to the side wall is greater than the distance from the second inflection point to the side wall;

[0012] In the thickness direction of the door body, the overall width of the first groove and the second groove ranges from 20 mm to 30 mm.

[0013] In some embodiments, the distance from the first groove and the second groove to the front wall is greater than or equal to 6 mm, and the distance from the first groove and the second groove to the side wall is greater than or equal to 4 mm.

[0014] In some embodiments, an angle between the first inflection point and a line connecting the first end point and the second end point is an obtuse angle.

[0015] In some embodiments, a tangent of a moving track of the first axis between the first end point and the first inflection point relative to the first groove forms a first angle with the front wall, a tangent of a moving track of the first axis between the first inflection point and the second end point relative to the first groove forms a second angle with the front wall, and one of the first angle and the second angle is an obtuse angle, and the other is an acute angle.

[0016] In some embodiments, a tangent of a moving track of the second axis between the third end point and the second inflection point relative to the second groove forms a third angle with the front wall, a tangent of a moving track of the second axis between the second inflection point and the fourth end point relative to the second groove forms a fourth angle with the front wall, and one of the third angle and the fourth angle is an obtuse angle, and the other is an acute angle.

[0017] In some embodiments, an angle between the second inflection point and a line connecting the third end point and the fourth end point is an obtuse angle.

[0018] In some embodiments, the first groove comprises a first circular-arc groove segment and a second circular-arc groove segment connected in series, and the first circular-arc groove segment and the second circular-arc groove segment intersect at the first inflection point.

[0019] In the first circular-arc groove segment, the first end point is located, and in the second circular-arc groove segment, the second end point is located.

[0020] In some embodiments, the second groove comprises a third circular-arc groove segment, a first elliptical-arc groove segment and a first straight-line groove segment connected in sequence, the second inflection point is located in the first straight-line groove segment or the first elliptical-arc groove segment, the third end point is located in the third circular-arc groove segment, and the fourth end point is located in the first straight-line groove segment.

[0021] In some embodiments, the first groove comprises a fourth circular-arc groove segment and a second straight-line groove segment connected in sequence, and the fourth circular-arc groove segment and the second straight-line groove segment intersect at the first inflection point.

[0022] In some embodiments, the first end point is located in the fourth circular-arc groove segment, and the second end point is located in the second straight-line groove segment.

[0023] In some embodiments, the second groove comprises a fifth circular-arc groove segment, a second elliptical-arc groove segment and a third straight-line groove segment connected in sequence, the second inflection point is located in the third straight-line groove segment or the second elliptical-arc groove segment, the third end point is located in the fifth circular-arc groove segment, and the fourth end point is located in the third straight-line groove segment.

[0024] In some embodiments, an end of the first groove is connected to a middle of the second groove, and the distance between the first end point and the second end point is less than or equal to the distance between the first shaft and the second shaft.

[0025] In some embodiments, the thickness of the door body is 42mm-60mm.

[0026] In some embodiments, the intrusion amount of the door body is less than or equal to 63mm when the door body is opened from the closed state to the maximum angle.

[0027] In some embodiments, the over-box amount of the door body is less than or equal to 3mm when the door body is opened from the closed state to the maximum angle.

[0028] The embodiments of the present application have at least the following beneficial effects:

[0029] The refrigeration equipment provided by the embodiments of the present application 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 overbox amount of the door body, and thus meet the embedded installation requirement. The inflection points are respectively arranged between the two end points of the first groove and the second groove, wherein 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 respectively away from the front wall relative to the two end points, and the distance from the inflection points to the side wall is between the distance from the two end points to the side wall, so that the first groove and the second groove form an arched groove with the groove opening facing the front wall, 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, a longer groove length is obtained 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 a certain extent and expand the door body opening degree. 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. Specifically, the overall width range of the first groove and the second groove in the thickness direction of the door body can be set to 20mm-30mm, so as to consider the assembly application on the thin specification and the ultra-thin specification door body and the large opening door angle. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0031] Fig. 1 shows a structural schematic diagram of the refrigeration equipment in the embodiments of the present application;

[0032] Fig. 2 shows a structural schematic diagram of a hinge assembly of the refrigeration equipment in Fig. 1;

[0033] Fig. 3 shows a structural schematic diagram of a first hinge piece of the hinge assembly in Fig. 2;

[0034] Fig. 4 shows a matching structure schematic diagram of a first shaft, a second shaft, a first groove and a second groove of the hinge assembly in Fig. 2;

[0035] Fig. 5 shows an arrangement schematic diagram of each point of the first groove and the second groove in the second hinge piece of the hinge assembly in Fig. 2;

[0036] Fig. 6 shows a schematic view of the arrangement of the slot segments of the first and second slots in the second hinge part of the hinge assembly of Fig. 2;

[0037] Fig. 7 shows a schematic view of the positions of the first and second axes when the door body of the refrigeration appliance of Fig. 1 is at a first angle;

[0038] Fig. 8 shows a schematic view of the positions of the first and second axes when the door body of the refrigeration appliance of Fig. 1 is at a second angle;

[0039] Fig. 9 shows a schematic view of the positions of the first and second axes when the door body of the refrigeration appliance of Fig. 1 is in a closed state;

[0040] Fig. 10 shows a schematic view of the positions of the first and second axes when the door body of the refrigeration appliance of Fig. 1 is in a maximum overbox state;

[0041] Fig. 11 shows a schematic view of the positions of the first and second axes when the door body of the refrigeration appliance of Fig. 1 is in a 90-degree opening state;

[0042] Fig. 12 shows a schematic view of the positions of the first and second axes when the door body of the refrigeration appliance of Fig. 1 is in a maximum opening state;

[0043] Fig. 13 shows a schematic view of the angle between the line connecting the first and second axes and the front wall when the door body of the refrigeration appliance of Fig. 1 is in a closed state;

[0044] Fig. 14 shows a schematic view of the angle between the line connecting the first and second axes and the front wall when the door body of the refrigeration appliance of Fig. 1 is in a maximum overbox state;

[0045] Fig. 15 shows a schematic view of the angle between the line connecting the first and second axes and the front wall when the door body is in a 90-degree opening state;

[0046] Fig. 16 shows a schematic view of the angle between the line connecting the first and second axes and the front wall when the door body of the refrigeration appliance of Fig. 1 is in a maximum opening state;

[0047] Fig. 17 shows a schematic view of the angle between the tangent to the trajectory of the first and second axes and the front wall when the door body of the refrigeration appliance of Fig. 1 is in an opening instant;

[0048] Fig. 18 shows a schematic view of the angle between the tangent to the trajectory of the first and second axes and the front wall when the door body of the refrigeration appliance of Fig. 1 is in a maximum overbox state;

[0049] Fig. 19 shows a schematic view of the angle between the tangent to the trajectory of the first and second axes and the front wall when the door body of the refrigeration appliance of Fig. 1 is in a 90-degree opening state;

[0050] Fig. 20 shows a schematic view of the angle between the tangent to the trajectory of the first and second axes and the front wall when the door body of the refrigeration appliance of Fig. 1 is in a maximum opening state;

[0051] 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 of the refrigeration device of Fig. 1 in a door body closed state;

[0052] Fig. 22 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 of Fig. 1 in a super-box-capacity maximum state;

[0053] Fig. 23 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 of Fig. 1 in a 90-degree opening state;

[0054] 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 of Fig. 1 in a maximum opening state;

[0055] Fig. 25 shows a schematic diagram of the distance between the door body and the main body of the refrigeration device of Fig. 1 in a door body closed state;

[0056] Fig. 26 shows a schematic diagram of the distance between the door body and the main body of the refrigeration device of Fig. 1 in a super-box-capacity maximum state;

[0057] Fig. 27 shows a schematic diagram of the distance between the door body and the main body of the refrigeration device of Fig. 1 in a 90-degree opening state;

[0058] Fig. 28 shows a schematic diagram of the distance between the door body and the main body of the refrigeration device of Fig. 1 in a maximum opening state;

[0059] Fig. 29 shows a schematic diagram of the included angle between the inflection point and the end point of the first slot and the second slot of the hinge assembly of the refrigeration device of Fig. 1;

[0060] Fig. 30 shows a schematic diagram of the position of the end point of the first slot and the second slot of the hinge assembly of the refrigeration device of Fig. 1;

[0061] Fig. 31 shows a schematic diagram of another slot segment structure of the first slot and the second slot of the hinge assembly of the refrigeration device of Fig. 1. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0063] Moreover, the application can repeat reference numerals and / or reference letters in different examples for the purpose of simplification and clarity, which in itself does not indicate a relationship between the various embodiments and / or arrangements discussed. In addition, the application provides examples of various specific processes and materials, but one of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0064] The application will be described below in conjunction with the accompanying drawings and with reference to specific embodiments:

[0065] 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 door body to move inward during opening and to control the overhang 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 a thin or ultra-thin door body and also limits the thickness of the door body to some extent.

[0066] Therefore, the embodiments of the application provide a refrigeration equipment, which aims to solve the technical problem of large volume specification of the double-shaft double-groove hinge to some extent, to reduce the volume of the double-shaft double-groove hinge, to improve the application adaptability of the double-shaft double-groove hinge on a thin or ultra-thin door body, and to take into account the large-angle opening ability.

[0067] FIG. 1 shows a structural schematic diagram of a refrigeration equipment in the embodiments of the application; FIG. 2 shows a structural schematic diagram of a hinge assembly of the refrigeration equipment 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.

[0068] Referring to FIGS. 1, 2, 3, 4, 5, and 6, in some embodiments, the refrigeration equipment can include a main body 11 and a door body 12 matched with each other, a hinge assembly 2 can be arranged between the door body 12 and the main body 11, and the hinge assembly 2 can be a double-shaft double-groove hinge. The double-shaft double-groove hinge can include a first hinge piece 21 and a second hinge piece 22 matched with each other, the first hinge piece 21 can be installed on the main body 11, the second hinge piece 22 can be installed on the door body 12, and the first hinge piece 21 and the second hinge piece 22 can rotate relative to each other to enable the door body 12 to deflect relative to the main body 11 to block or expose the box opening of the main body 11 when the door body 12 is opened or closed.

[0069] The state that the door body 12 blocks the box opening of the main body 11 is a closed state, the inner surface of the door body 12 is attached to the front surface of the main body 11 to close the main body 11, at this time, the included angle between the door body 12 and the main body 11 is 0, and the door opening degree is 0 degree. The door opening operation can be implemented by gradually expanding the included angle between the door body 12 and the main body 11, i.e. expanding the opening degree, by deflecting the door body 12; when the door body 12 continues to deflect 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 expand the opening degree until the limit position of the door body 12, 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.

[0070] The door body 12 is a plate-shaped member, and the door body 12 is provided with a front wall 121 and a side wall 122, the front wall 121 is a side surface away from the main body 11, the side wall is a circumferential side surface of the door body 12, and the front wall 121 and the side wall 122 are adjacent and form an included angle. The second hinge member 12 can be installed on the 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.

[0071] The first hinge member 21 is provided with a first shaft 211 and a second shaft 212, and the second hinge member 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 cooperation, and the second shaft 212 and the second slot 222 are in sliding cooperation.

[0072] The first slot 221 has 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, i.e. the overall slot type of the first slot 221 is an arcuate slot, and the slot opening of the arcuate slot faces the front wall 121.

[0073] With the side wall 122 as a 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, 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.

[0074] The second groove 222 has a third end point 222a, a second inflection point 222b and a fourth end point 222c, the second inflection point 222b can be arranged between the second end point 222a and the fourth end point 222c, 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 third inflection point 222b to the front wall 121, that is, the overall groove type of the second groove 222 is an arched groove, and the groove opening of the arched groove faces the front wall 121.

[0075] With 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, among the third end point 222a, the first 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, the distance from the other one 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.

[0076] That is, by forming the inflection points in the first groove 221 and the second groove 222, the curved groove type is formed, a longer groove body is obtained within a limited range, so that a larger door body deflection angle can be realized, and a larger door opening angle can be obtained; also, in the case of maintaining the overall groove length, 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, the large door opening angle and the smaller installation space can be considered to meet the large door opening angle function on the ultra-thin specification door body.

[0077] Through the arched structure of the first groove 221 and the second groove 222, and by controlling the distance and position 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.

[0078] The refrigeration equipment provided by the embodiments of the present application 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, so as to realize the movement of the door body to the inside of the main body, limit the overbox amount of the door body, and thus meet the embedded installation requirement. The inflection points are respectively arranged between the two end points of the first groove and the second groove, wherein 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 respectively away from the front wall relative to the two end points, and the distance from the inflection points to the side wall is between the distance from the two end points to the side wall, so that the first groove and the second groove form an arched groove with the groove opening facing the front wall, 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, a longer groove length is obtained 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 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 arched 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, 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. Specifically, 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 the thin specification and the ultra-thin specification door body and the large opening door angle can be considered.

[0079] In some embodiments, the overall width of the first groove 221 and the second groove 222 can range from 20mm to 30mm; for example, the overall width of the first groove 221 and the second groove 222 can be 20mm, 22mm, 24mm, 26mm, 28mm, 30mm or other values within 20mm-30mm, which is not specifically limited here.

[0080] In some embodiments, considering the inside and outside areas 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.

[0081] A distance of at least 6mm can be left between the front wall 121 and the first groove 221 and the second groove 222, that is, the distance L from the first groove 221 and the second groove 222 to the front wall 121 can be greater than or equal to 6mm.

[0082] A distance of at least 4mm can also be left between the side wall 122 and the first groove 221 and the second groove 222, that is, the distance N from the first groove 221 and the second groove 222 to the side wall 122 can be greater than or equal to 4mm.

[0083] 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 flattened as a whole, thereby reducing the width of the first slot 221 in the thickness direction of the door body as a whole.

[0084] 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.

[0085] 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 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 flattened as a whole, thereby reducing the width of the first slot 221 in the thickness direction of the door body as a whole.

[0086] 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.

[0087] FIG. 29 shows a schematic diagram of the included angles of the inflection points and end points of the first slot and the second slot of the hinge assembly of the refrigeration device of FIG. 1. Referring to FIG. 29, in some embodiments, the included 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.

[0088] And the included 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.

[0089] In some embodiments, in order to balance the large opening degree of the door body 12 and the small specification of the first slot 221, the arched shape of the first slot 221 is set so that the trajectory has a large angle turn during the sliding cooperation of the first shaft 211 and the first slot 221, thereby enabling the door body to be opened larger.

[0090] The tangent of the first shaft 211 relative to the first groove 221 between the first endpoint 221a and the first inflection point 221b forms a first angle with the front wall 121, and the tangent of the first shaft 211 relative to the first groove 221 between the first inflection point 221b and the second endpoint forms a second angle with the front wall 122, wherein one of the first angle and the second angle is an obtuse angle and the other is an acute angle.

[0091] The angle between the tangent of the trajectory of the first axis 211 and the front wall 121 refers to the angle between the convex arc side of the trajectory and the front wall 121.

[0092] In some embodiments, in order to take into account the large opening of the door 12 and the small size of the second groove 222, the arched shape of the second groove 222 can be set so that the trajectory of the second shaft 212 and the second groove 222 changes at a large angle during the sliding process, thereby allowing the door to open larger.

[0093] The tangent of the second shaft 212 relative to the second groove 222 between the third endpoint 222a and the second inflection point 222b forms a third angle with the front wall 121, and the tangent of the second shaft 212 relative to the second groove 222 between the second inflection point 222b and the fourth endpoint forms a fourth angle with the front wall 122, wherein one of the third angle and the fourth angle is an obtuse angle and the other is an acute angle.

[0094] The angle between the tangent of the trajectory of the second axis 212 and the front wall 121 refers to the angle between the convex arc side of the trajectory and the front wall 121.

[0095] In some embodiments, the first groove 221 can be divided into two groove segments, namely a first arc groove segment 221d and a second arc groove segment 221e. The first arc groove segment 221d and the second arc groove segment 221e intersect at a first inflection point 221b, and the first endpoint 221a is located in the first arc groove segment 221d, and the second endpoint 221c is located in the second arc groove segment 221e.

[0096] During the opening of the door 12, the first shaft 211 moves along the first arc groove segment 221d toward the first inflection point 221b, and after passing the first inflection point 221b, it enters the second arc groove segment 221e. During the relative movement of the first shaft 211 and the first groove 221, the trajectory of the first shaft 211 is two connected arcs.

[0097] In some embodiments, the second groove 222 can be divided into three sequentially connected groove segments: a third circular arc groove segment 222d, a first elliptical arc groove segment 222e, and a first straight groove segment 222f. The second inflection point 222b can be located within the first straight groove segment 222f or the first elliptical arc groove segment 222e, the third endpoint 222a is located within the third circular arc groove segment 222d, and the fourth endpoint 222c is located within the first straight groove segment 222f.

[0098] During the opening process of the door body 12, the second shaft 212 and the second slot 222 move relative to each other, and the second shaft 212 moves along the third circular arc slot segment 222d, the first elliptical arc slot segment 222e, and the first straight slot segment 222f.

[0099] 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 piece 22. The distance L1 from the first end point 221a of the first slot 221 to 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.

[0100] The distance L2 from the second end point 221c to 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.

[0101] The distance N1 from the first end point 221a to the side wall 122 can be set to a range of 16.3 mm to 22.3 mm; exemplarily, the value of N1 can be 16.3 mm, 17 mm, 19 mm, 21 mm, 22.3 mm, or other values within the range of 16.3 mm to 22.3 mm, which is not specifically limited herein.

[0102] The distance N2 from the second end point 221c to the side wall 122 can be set to a range of 6 mm to 12.3 mm; exemplarily, the value of N2 can be 6 mm, 7 mm, 9 mm, 11 mm, 12.3 mm, or other values within the range of 6 mm to 12.3 mm, which is not specifically limited herein.

[0103] The distance L3 from the third end point 222a of the second slot 222 to the front wall 121 can be set to a range of 7 mm to 12 mm; exemplarily, the value of L3 can be 7 mm, 9 mm, 11 mm, 12 mm, or other values within the range of 7 mm to 12 mm, which is not specifically limited herein.

[0104] The distance L4 from the fourth end point 222c to the front wall 121 can be set to a range of 21.7 mm to 27.7 mm; exemplarily, the value of L4 can be 21.7 mm, 23 mm, 25 mm, 27 mm, 27.7 mm, or other values within the range of 21.7 mm to 27.7 mm, which is not specifically limited herein.

[0105] The distance N3 from the third end point 222a to the side wall 122 is set to be in the range of 30mm to 36.7mm; for example, N3 can be 30mm, 31mm, 33mm, 35mm, 36.7mm or other values within the range of 30mm to 36.7mm, which is not specifically limited herein.

[0106] The distance N4 from the fourth end point 222c to the side wall 122 is set to be in the range of 4mm to 9mm; for example, N4 can be 4mm, 5mm, 7mm, 9mm or other values within the range of 4mm to 9mm, which is not specifically limited herein.

[0107] 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 14.4mm, the distance L2 from the second end point 221c to the front wall 121 can be set to 11.3mm, the distance N1 from the first end point 221a to the side wall 122 can be set to 19.3mm, and the distance N2 from the second end point 221c to the side wall 122 can be set to 6.3mm; the distance L3 from the third end point 222a of the second slot 222 to the front wall 121 can be set to 9mm, the distance L4 from the fourth end point 222c to the front wall 121 can be set to 24.7mm, the distance N3 from the third end point 222a to the side wall 122 can be set to 33.7mm, and the distance N4 from the fourth end point 222c to the side wall 122 can be set to 4.8mm.

[0108] The angle a1 between the first inflection point 221b and the line connecting the first end point 221a and the second end point 221c can be set to 100 degrees, and the angle a2 between the second inflection point 222b and the line connecting the third end point 222a and the fourth end point 222c can be set to 110 degrees.

[0109] Fig. 31 shows another schematic view of the slot segment structure of the first slot and the second slot of the hinge assembly of the refrigeration device of Fig. 1; referring to 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, and the first end point 221a is located in the fourth circular-arc slot segment 221f, and the second end point 221c is located in the second straight-line slot segment 221g.

[0110] During the opening process of the door body 12, the first shaft 211 moves along the fourth circular-arc slot segment 221f towards the first inflection point 221b, enters the second straight-line slot segment 221g after passing through the first inflection point 221b, and 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.

[0111] In some embodiments, the second slot 222 can be divided into three slot sections in sequence, i.e., a fifth circular-arc slot section 222g, a second elliptical-arc slot section 222h, and a third straight-line slot section 222i. The second inflection point 222b can be located in the third straight-line slot section 222i or the second elliptical-arc slot section 222h, the third end point 222a is located in the fifth circular-arc slot section 222g, and the fourth end point 222c is located in the third straight-line slot section 222i.

[0112] During the opening process of the door body 12, the second shaft 212 and the second slot 222 move relative to each other, and the second shaft 212 moves along the fifth circular-arc slot section 222g, the second elliptical-arc slot section 222h, and the third straight-line slot section 222i.

[0113] Referring to FIGS. 4, 5, and 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, thereby reducing the structure between the first slot 221 and the second slot 222 to some extent, shortening the distance between the first slot 221 and the second slot 222, reducing the space volume occupied by the first slot 221 and the second slot 222 as a whole, and thus reducing the overall specification of the second hinge member 22. In the case where the door body is in a 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, i.e., the arrangement of the first shaft 211 and the second shaft 212, the first slot 221 and the second slot 222 is compact, so that the thickness of the door body 12 can be thinner under the premise of ensuring the rotation angle of the door body 12, thereby meeting the ultra-thin door requirement of the refrigeration equipment.

[0114] 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 in a spaced manner with the first end point 221a of the first slot 221. In the case where the door body 12 is in a 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.

[0115] 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 where the door body 12 is in a 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, the overall structure layout is more compact, and the space occupied by the entire hinge assembly is optimized.

[0116] In some embodiments, in order to avoid the first slot 221 and the second slot 222 being communicated to cause 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 being separated from the first slot 221, and improve the stability of the working of the hinge assembly 2.

[0117] In some embodiments, the depth of the first slot 221 and the second slot 222 can also be misaligned, i.e. 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 is lower than the bottom of the first slot 221, so as to prevent the second shaft 212 from moving into the first slot 221.

[0118] 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 matched, so that during the opening of the door, the first shaft 211 reciprocates in the reciprocating slot segment 221j of the first slot 221, so that the length of the first slot 221 can be relatively reduced to some extent, and the thickness space occupied is reduced.

[0119] Therefore, the first slot 221 also has a first intermediate point 221h and a second intermediate point 221i, and the first intermediate point 221h is located between the first inflection point 221b and the first end point 221a, and the second intermediate point 221i can be arranged between the first inflection point 221b and the second end point 221c, and the first intermediate point 221h and the second intermediate point 221i are the reciprocating slot segment 221j.

[0120] 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, and the first shaft 211 moves to the second intermediate point 221i after passing through the first intermediate point 221h, the first inflection point 221b in turn; then, 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 moving through the first intermediate point 221h, continue to move to the second intermediate point 221i, and move through the first inflection point 221b, the second intermediate point 221i and finally move to the second end point 221c in the process.

[0121] 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 the second shaft 212 passes through the second inflection point 222b in the process.

[0122] FIG. 7 shows a schematic view of the positions of the first axis and the second axis when the door body of the refrigeration device of FIG. 1 is at a first angle; and FIG. 8 shows a schematic view of the positions of the first axis and the second axis when the door body of the refrigeration device of FIG. 1 is at a second angle.

[0123] Referring to FIGS. 7 and 8, in some embodiments, the distance L5 from the first intermediate point 221h to the front wall 121 ranges from 16 mm to 21 mm. Exemplarily, the distance L5 from the first intermediate point 221h to the front wall 121 can be 16 mm, 17.2 mm, 18 mm, 18.8 mm, 20 mm, 21 mm, or other values within the range of 16 mm to 21 mm, which are not specifically limited herein.

[0124] The distance N5 from the first intermediate point 221h to the side wall 122 ranges from 8 mm to 14 mm. Exemplarily, the distance N5 from the first intermediate point 221h to the side wall 122 can be 8 mm, 9 mm, 10 mm, 10.6 mm, 12 mm, 13 mm, 14 mm, or other values within the range of 8 mm to 14 mm, which are not specifically limited herein.

[0125] The distance L6 from the second intermediate point 221i to the front wall 121 ranges from 17 mm to 22 mm. Exemplarily, the distance L6 from the second intermediate point 221i to the front wall 121 can be 17 mm, 18 mm, 19 mm, 19.4 mm, 21 mm, 22 mm, or other values within the range of 17 mm to 22 mm, which are not specifically limited herein.

[0126] The distance N6 from the second intermediate point 221i to the side wall 122 ranges from 9 mm to 14 mm. Exemplarily, the distance N6 from the second intermediate point 221i to the side wall 122 can be 9 mm, 10 mm, 11.4 mm, 12 mm, 13 mm, 14 mm, or other values within the range of 9 mm to 14 mm, which are not specifically limited herein.

[0127] In some embodiments, when the first axis 211 moves from the first end point 221a to the first intermediate point 221h, the distance L7 from the second axis 212 to the front wall 121 ranges from 24 mm to 27 mm. Exemplarily, the distance L7 from the second axis 212 to the front wall 121 can be 24 mm, 25 mm, 25.9 mm, 27 mm, or other values within the range of 24 mm to 27 mm, which are not specifically limited herein.

[0128] When the first axis 211 moves from the first end point 221a to the first intermediate point 221h, the distance N7 of the second axis 212 to the side wall 122 can be in the range of 22mm-26mm. For example, the distance N7 of the second axis 212 to the side wall 122 can be 22mm, 23mm, 24mm, 24.7mm, 26mm or other values in the range of 22mm-26mm, which are not specifically limited herein.

[0129] In some embodiments, when the first axis 211 moves from the second intermediate point 221i to the second end point 221c, the distance L8 of the second axis 212 to the front wall 121 can be in the range of 30mm-34mm. For example, the distance L8 of the second axis 212 to the front wall 121 can be 30mm, 31mm, 31.9mm, 33mm, 34mm or other values in the range of 30mm-34mm, which are not specifically limited herein.

[0130] When the first axis 211 moves from the second intermediate point 221i to the second end point 221c, the distance N8 of the second axis 212 to the side wall 122 can be in the range of 20mm-22mm. For example, the distance N8 of the second axis 212 to the side wall 122 can be 20mm, 21mm, 22mm or other values in the range of 20mm-22mm, which are not specifically limited herein.

[0131] In some embodiments, by designing the trajectory of the slot segment, the risk of interference between the door body 12 and the main body 11 can be reduced, and a large opening angle of the door can be achieved to some extent.

[0132] The stage in which the first axis 211 moves from the first end point 221a to the first intermediate point 221h can be set as a stage in which the first axis 211 is relatively far away from the front wall 121, and the stage in which the first axis 211 moves from the second intermediate point 221i to the second end point 221c can be set as a stage in which the first axis 211 is close to the front wall 121. The stage in which the second axis 212 moves from the third end point 222a to the second inflection point 222b can be set as a stage in which the second axis 212 is relatively far away from the front wall 121, and the stage in which the second axis 212 moves from the second inflection point 222b to the fourth end point 222c can be set as a stage in which the second axis 212 is close to the front wall 121.

[0133] By the above-mentioned groove, in the initial stage of opening the door, the first shaft 211 and the second shaft 212 are both moved in the direction away from the front wall 121, so that the door body 12 has a tendency to move in the direction away from the main body 11, to avoid 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, which is arranged to effectively control the over-box amount of the door body 12 in the rotating process, and cooperates with the movement of the second shaft 212 to quickly rotate and open the door body 12, reduces the space occupied by the running track of the first shaft 211 in the rotating process of the door body 12, and thus facilitates 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 are both moved in the direction close to the front wall 121, to facilitate the large-angle opening of the door body 12.

[0134] 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 with the door body 12, 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.

[0135] Referring to FIGS. 5, 6, 7 and 8, in some embodiments, during the opening and closing process 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 will reciprocate relative to the first groove 221 between the first intermediate point 221h and the second intermediate point 221i. The first angle Q1 is smaller than the second angle Q2. During the opening process of the door body 12, the door body 12 is first turned to the first angle Q1 and then to the second angle Q2. During the closing process of the door body, the door body is first returned to the second angle Q2 and then to the first angle Q1.

[0136] During the process of opening 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.

[0137] During the process of opening 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 to the second intermediate point 221i through the first inflection point 221b; 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.

[0138] In some embodiments, during the process that the door body 12 is opened from the self-closing 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.

[0139] wherein the third angle is greater than the second angle, that is, during the process that the door body 12 is opened, when the first shaft 211 reciprocally moves relative to the first slot 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, the second shaft 212 is relatively close to the front wall 121; so that the door body 12 can be further deflected with the first shaft 211 as the axis, and the opening degree of the door body is further expanded.

[0140] 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, and then moves from the second intermediate point 221i to the first intermediate point 221h, and then moves from the first intermediate point 221h to the second intermediate point 221i; wherein the second angle Q2 is greater than the first angle Q1, and the third angle is greater than the second angle.

[0141] In some embodiments, due to the principle of the double-shaft double-slot hinge, during the process that the door body 12 is opened and closed, the center of deflection of the door body 12 relative to the main body 11 changes, and the center of deflection is not stably located at a point or multiple points on the hinge, but is located at a virtual rotation center outside the door body 12.

[0142] When the door body 12 is opened from the self-closing 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 self-closing 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.

[0143] 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 on the side of the first axis 211 and the second axis 212 away from the side wall 122, and gradually approaches the axis of the first axis 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 axis 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 on the side of the first axis 211 and the second axis 212 close to the side wall 122 and then away from the side wall 122, until the door body 12 is rotated to the second angle Q1, the first axis 211 retreats to the limit position, and the virtual rotation center of the door body 12 is coaxial with the first axis 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 first axis 211 and the second axis 212 away from the side wall.

[0144] In some embodiments, the first angle Q1 can be 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 is not specifically limited here.

[0145] The second angle Q2 can be 60 degrees to 100 degrees; for example, the second angle Q2 can be 60 degrees, 68 degrees, 82 degrees, 90 degrees, 100 degrees, or other angles between 60 degrees and 100 degrees, which is not specifically limited here.

[0146] The third angle can be 85 degrees to 100 degrees; for example, the third angle can be 85 degrees, 88 degrees, 92 degrees, 95.5 degrees, 98 degrees, 100 degrees, or other angles between 85 degrees and 100 degrees, which is not specifically limited here.

[0147] In some embodiments, the slot shape between the first intermediate point 222h and the first end point 221a is arc-shaped, the slot shape between the first intermediate point 222h and the second intermediate point 222i is arc-shaped, and the slot shape between the second intermediate point 222i and the second end point 22ac is arc-shaped and transitions to straight line shape.

[0148] Therefore, during the opening process of the door body 12, the first axis 211 corresponds to the moving track of the first slot 221, which is arc-shaped, straight line-shaped, and arc-shaped, respectively; that is, the first axis 211 moves in an arc-shaped track between the first angle Q1 and the second angle Q2. In the case that the distance between the first axis 211 and the second axis 212 is unchanged, the second axis 212 can be smoothly moved away from the front wall 121 along the second slot 222, thereby obtaining a larger opening degree.

[0149] In some embodiments, the slot shape between the third end point 222a and the second inflection point 222b is an arc transition to a straight line, and the slot shape between the second inflection point 222b and the fourth end point 222c is an arc, so that when the first shaft 211 reciprocates, the second shaft 212 smoothly moves away from the front wall 121 along the second slot 222 to obtain a larger opening degree, while the distance between the first shaft 211 and the second shaft 212 remains unchanged.

[0150] 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 of FIG. 1.

[0151] Referring to FIG. 30, in some embodiments, the first slot 221 and the second slot 222 are in communication, and the distance L1 from the first end point 221a of the first slot 221 to the front wall 121 can be set to a range of 7mm to 17mm. Exemplarily, the value of L1 can be 7mm, 9mm, 12mm, 15mm, 17mm, or other values between 7mm and 17mm, which are not specifically limited here.

[0152] The distance L2 from the second end point 221c to the front wall 121 can be set to a range of 6mm to 14mm. Exemplarily, the value of L2 can be 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, or other values between 6mm and 14mm, which are not specifically limited here.

[0153] The distance N1 from the first end point 221a to the side wall 122 can be set to a range of 14mm to 24mm. Exemplarily, the value of N1 can be 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, or other values between 14mm and 24mm, which are not specifically limited here.

[0154] The distance N2 from the second end point 221c to the side wall 122 can be set to a range of 4mm to 11.5mm. Exemplarily, the value of N2 can be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11.5mm, or other values between 4mm and 11.5mm, which are not specifically limited here.

[0155] The distance L3 from 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. Exemplarily, the value of L3 can be 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, or other values between 6mm and 13mm, which are not specifically limited here.

[0156] The distance L4 of the fourth end point 222c to the front wall 121 is set to a range of 18mm-28mm. Exemplarily, the distance L4 can be 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm or other values within the range of 18mm-28mm, which are not specifically limited herein.

[0157] The distance N3 of the third end point 222a to the side wall 122 is set to a range of 27mm-37mm. Exemplarily, the distance N3 can be 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm or other values within the range of 27mm-37mm, which are not specifically limited herein.

[0158] The distance N4 of the fourth end point 222c to the side wall 122 is set to a range of 4mm-11mm. Exemplarily, the distance N4 can be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm or other values within the range of 4mm-11mm, which are not specifically limited herein.

[0159] 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 16.5mm, the distance L2 of the second end point 221c to the front wall 121 is set to 8.6mm, the distance N1 of the first end point 221a to the side wall 122 is set to 17.7mm, and the distance N2 of the second end point 221c to the side wall 122 is set to 6.7mm; the distance L3 of the third end point 222a of the second slot 222 to the front wall 121 is set to 8.7mm, the distance L4 of the fourth end point 222c to the front wall 121 is set to 24.4mm, the distance N3 of the third end point 222a to the side wall 122 is set to 31.5mm, and the distance N4 of the fourth end point 222c to the side wall 122 is set to 6.6mm.

[0160] 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 is set to a range of 90.1 degrees, and 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 is set to 110.1 degrees.

[0161] 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 20mm-30mm; correspondingly, the thickness of the door body 12 can be 42mm-60mm, so that the door body 12 can be of an ultra-thin specification.

[0162] The greater the width of the first groove 221 and the second groove 222 in the thickness direction of the door body 12, the greater the thickness of the door body 12. The second hinge member 22 has a compact structure, and the door body can be adapted as an ultra-thin door body, thereby reducing the space occupied by the door body on the entire refrigeration equipment, increasing the capacity of the entire refrigeration equipment under the same volume, or reducing the thickness of the entire refrigeration equipment under the same capacity.

[0163] The thickness S of the door body 12 ranges from 42 mm to 60 mm. For example, the thickness S of the door body 12 can be 42 mm, 45 mm, 47 mm, 50 mm, 52 mm, 55 mm, 58 mm, 60 mm, or other values between 42 mm and 60 mm, which are not limited herein.

[0164] FIG. 9 shows a schematic view of the positions of the first axis and the second axis of the door body of the refrigeration equipment of FIG. 1 in a closed state. Referring to FIG. 9, in some embodiments, when the door body is in a closed state, the first axis 211 is located at the first end point 221a, or the first axis 211 is located between the first end point 221a and the first inflection point 221b. By limiting the arrangement 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 closed 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 itself has a compact structure, the distance 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, which facilitates reducing the thickness of the door body 12.

[0165] 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.

[0166] The distance A0 between the axis center of the first axis 211 and the front wall 121 can range from 10 mm to 20 mm. For example, the distance A0 between the axis center of the first axis 211 and the front wall 121 can be 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 19 mm, 19.5 mm, 20 mm, or other values between 10 mm and 20 mm, which are not limited herein.

[0167] The distance B0 between the axis of the first shaft 211 and the side wall 122 can be 17mm-27mm. For example, the distance B0 between the axis of the first shaft 211 and the side wall 122 can be 17mm, 19mm, 20mm, 20.7mm, 22mm, 24mm, 26mm, 27mm, or other values between 17mm and 27mm, which are not limited herein.

[0168] The distance C0 between the axis of the second shaft 212 and the front wall 121 can be 6mm-16mm. For example, the distance C0 between the axis of the second shaft 212 and the front wall 121 can be 6mm, 8mm, 10mm, 11.7mm, 12mm, 14mm, 16mm, or other values between 6mm and 16mm, which are not limited herein.

[0169] The distance D0 between the axis of the second shaft 212 and the side wall 122 can be 30mm-40mm. For example, the distance D0 between the axis of the second shaft 212 and the side wall 122 can be 30mm, 32mm, 34mm, 34.5mm, 36mm, 38mm, 40mm, or other values between 30mm and 40mm, which are not limited herein.

[0170] FIG. 17 shows a schematic diagram of the angles between the tangents of the moving tracks of the first shaft and the second shaft and the front wall at the moment when the door body of the refrigeration device of FIG. 1 is opened. Referring to FIG. 17, in some embodiments, by limiting 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 shaft 211 and the second shaft 212 relative to the door body 12 and the front wall 121 are limited, so as to constrain the moving track of the door body 12 when the door body 12 is opened, and avoid interference between the door body 12 and the surrounding structure.

[0171] In some embodiments, 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 at the moment when the door body 12 is opened is in the range of 20 degrees-40 degrees. For example, 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 at the moment when the door body 12 is opened can be 20 degrees, 22 degrees, 25 degrees, 28.7 degrees, 30 degrees, 32 degrees, 35 degrees, 40 degrees, or other values between 20 degrees and 40 degrees, which are not limited herein.

[0172] At the moment when the door body 12 is opened, the angle β0 between the tangent of the moving track of the second shaft 212 at the third end point 222a relative to the second groove 222 and the front wall 121 ranges from 40 degrees to 60 degrees. Exemplarily, at the moment when the door body 12 is opened, the angle β0 between the tangent of the moving track of the first shaft 211 at the first end point relative to the first groove 221 and the front wall 121 can be 40 degrees, 42 degrees, 45 degrees, 50 degrees, 52.8 degrees, 55 degrees, 57 degrees, 60 degrees, or other values between 40 degrees and 60 degrees, which is not limited herein.

[0173] In some embodiments, the angle θ0 between the tangent of the moving track of the first shaft 211 relative to the first groove 221 and the tangent of the moving track of the second shaft 212 relative to the second groove 222 at the moment when the door body 12 is opened from the closed state can also be defined, so as to further constrain the moving track of the door body when opened and further reduce the risk of interference between the door body and the surrounding structure.

[0174] At the moment when the door body 12 is opened from the closed state, the angle θ0 between the tangent of the moving track of the first shaft 211 relative to the first groove 221 and the tangent of the moving track of the second shaft 212 relative to the second groove 222 ranges from 20 degrees to 40 degrees. Exemplarily, at the moment when the door body 12 is opened, the angle θ0 between the tangent of the moving track of the first shaft 211 relative to the first groove 221 and the tangent of the moving track of the second shaft 212 relative to the second groove 222 can be 20 degrees, 22 degrees, 25 degrees, 28.7 degrees, 30 degrees, 32 degrees, 35 degrees, 40 degrees, or other values between 20 degrees and 40 degrees, which is not limited herein.

[0175] 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 groove 221, and the second shaft 212 is spaced apart from the first end point 222a of the second groove 222, i.e., there can be a gap between the first shaft 211 and the first end point 221a, and there can be a gap between the second shaft 212 and the second end point 222a.

[0176] By spacing at least one of the first shaft 211 and the second shaft 212 from the corresponding first end point 221a and the second end point 222a, a certain negative door closing angle can be obtained when the door body 12 is in the closed state, so as to ensure the sealing performance of the door body 12 when closed.

[0177] FIG. 13 shows a schematic diagram of the angle between the first shaft and the second shaft connecting line and the front wall of the door body of the refrigeration device of FIG. 1 in the closed state.

[0178] Referring to FIG. 13, in some embodiments, the angle between the line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 of the door body 12 is defined so as to facilitate control of the movement trajectory 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 surrounding structures such as a cabinet body when the door body 12 is opened.

[0179] During the process of opening the door body 12 from the closed state, the angle δ between the line connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 first decreases and then increases, and there is a state in which the line connecting the centers of the first axis 211 and the second axis 212 is parallel to the front wall 121 during the process of opening the door body 12.

[0180] It should be noted that, for the sake of distinction, the angle between the line connecting the centers of 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 line connecting the centers of 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.

[0181] When 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 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, when the door body 12 is in the closed state, the angle δ between the line connecting the 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 is not limited in particular.

[0182] 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 of the refrigeration device of FIG. 1 in the closed state.

[0183] Referring to FIG. 21, in some embodiments, the distance between the center of the first axis 211 and the center of the second axis 212 in the thickness direction of the door body 12 and the distance between the center of the first axis 211 and the center of the second axis 212 in the width direction of the door body are defined so as to constrain the distance between the first axis 211 and the second axis 212 and make the layout of the first axis 211 and the second axis 212 compact.

[0184] In the case that the door body 12 is in the closed state, the distance W0 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 ranges from 0mm to 10mm. Exemplarily, the distance W0 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 0mm, 1mm, 2mm, 4mm, 6mm, 7.8mm, 8mm, 10mm or other values between 0mm and 10mm when the door body 12 is closed, which is not limited herein.

[0185] In the case that the door body 12 is in the closed state, the distance M0 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 ranges from 5mm to 15mm. Exemplarily, the distance M0 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, 11mm, 13mm, 13.7mm, 15mm or other values between 5mm and 15mm when the door body 12 is closed, which is not limited herein.

[0186] FIG. 25 shows a schematic diagram of the distance between the door body and the main body of the refrigeration device of FIG. 1 in the closed state.

[0187] Referring to FIG. 25, in some embodiments, a flexible sealing member such as a door seal can be 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 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, the distance between the door body 12 and the main body 11 should be maintained.

[0188] In the case that 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 ranges from 5mm to 8mm. Exemplarily, the distance P0 between the rear wall 124 and the main body 11 can be 5mm, 6mm, 7mm, 8mm or other values between 5mm and 8mm when the door body is closed, which is not limited herein.

[0189] FIG. 11 shows a schematic diagram of the positions of the first shaft and the second shaft of the door body of the refrigeration device of FIG. 1 in the 90-degree opening state.

[0190] Referring to FIG. 11, in some embodiments, by limiting the door body 12 to be at a 90-degree opening state, the arrangement positions of the first shaft 211 and the second shaft 212 relative to the door body 12, the distances from the first shaft 211 and the second shaft 212 to the front wall 121 and the side wall 122 are small, the distance between the hinge assembly 2 and the front wall 121 and the side wall 122 is also small while the structure of the hinge assembly 2 is compact, and the cooperation size between the hinge assembly 2 and the door body 12 is more compact, which facilitates reducing the thickness of the door body 12.

[0191] It is worth noting that the relative angle between the door body 12 and the main body 11 is 90 degrees, that is, the door body 12 is at 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 shaft 211 and the second shaft 212 and the front wall 121 and the side wall 122 at this position, the relative position of the door body 12 is controlled to be not too large when the door body 12 is opened to 90 degrees, and the intrusion amount is not too large in the case that the distance between the embedded refrigeration equipment and the surrounding structure such as the cabinet body is small, which facilitates the use of the user when the door body 12 is normally opened.

[0192] Herein, the distance between the axis of the first shaft 211 and the front wall 121 refers to the length of the perpendicular line from the axis of the first shaft 211 to the front wall 121, and the distance between the axis of the first shaft 211 and the side wall 122 refers to the length of the perpendicular line from the axis of the first shaft 211 to the side wall 122; the distance between the axis of the second shaft 212 and the front wall 121 refers to the length of the perpendicular line from the axis of the second shaft 212 to the front wall 121, and the distance 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 212 to the side wall 122.

[0193] When the door body 12 is at a 90-degree opening state, the distance A2 between the axis of the first shaft 211 and the front wall 121 can be 12mm-22mm; exemplarily, the distance between the axis of the first shaft 211 and the front wall 121 can be 12mm, 14mm, 16mm, 18mm, 19.5mm, 20mm, 22mm; or other values between 12mm-22mm, which are not limited herein.

[0194] When the door body 12 is at a 90-degree opening state, the distance B2 between the axis of the first shaft 211 and the side wall 122 can be 7mm-17mm; exemplarily, the distance between the axis of the first shaft 211 and the side wall 122 can be 7mm, 9mm, 11mm, 11.2mm, 13mm, 15mm, 17mm; or other values between 17mm-27mm, which are not limited herein.

[0195] The distance C2 between the axis of the second shaft 212 and the front wall 121 when the door body 12 is at the 90-degree opening state can be 25 mm to 35 mm. For example, the distance C2 between the axis of the second shaft 212 and the front wall 121 can be 25 mm, 27 mm, 29 mm, 31 mm, 33 mm, 34.5 mm, 35 mm, or other values within the range of 25 mm to 35 mm, which are not limited herein.

[0196] The distance D2 between the axis of the second shaft 212 and the side wall 122 when the door body 12 is at the 90-degree opening state can be 13 mm to 23 mm. For example, the distance D2 between the axis of the second shaft 212 and the side wall 122 can be 13 mm, 15 mm, 17 mm, 19 mm, 21 mm, 22 mm, 23 mm, or other values within the range of 13 mm to 23 mm, which are not limited herein.

[0197] FIG. 19 shows a schematic diagram 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 of FIG. 1 is at the 90-degree opening state.

[0198] Referring to FIG. 19, in some embodiments, by defining the angle a2 between the tangent of the moving track of the first shaft 21 relative to the door body 12 and the front wall 121, the angle b2 between the tangent of the moving track of the second shaft 212 relative to the door body 12 and the front wall 121, and the angle q2 between the tangents of the moving tracks 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.

[0199] In some embodiments, the angle a2 between the tangent of the moving track of the first shaft 211 relative to the first groove 221 and the front wall 121 at the moment when the door body 12 is opened to the 90-degree opening state 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 groove 221 and the front wall 121 at the moment when the door body 12 is opened to the 90-degree opening state can be -25 degrees, -30 degrees, -34.9 degrees, -40 degrees, -45 degrees, or other values within the range of -25 degrees to -45 degrees, which are not limited herein.

[0200] The angle b2 between the tangent of the moving track of the second shaft 212 relative to the second groove 222 and the front wall 121 at the moment when the door body 12 is opened to the 90-degree opening state is in the range of 5 degrees to 25 degrees. For example, the angle b2 between the tangent of the moving track of the second shaft 212 relative to the second groove 222 and the front wall 121 at the moment when the door body 12 is opened to the 90-degree opening state can be 5 degrees, 10 degrees, 15 degrees, 17.1 degrees, 20 degrees, 25 degrees, or other values within the range of 5 degrees to 25 degrees, which are not limited herein.

[0201] In some embodiments, the angle θ2 between the tangents of the moving tracks 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 from the closed state can be defined to further restrict the opening of the door body so as to further reduce the risk of interference between the door body and the surrounding structure.

[0202] The angle θ2 between the tangents of the moving tracks of the first shaft 211 relative to the first slot 221 and 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 range from 30 degrees to 70 degrees. For example, the angle θ2 between the tangents of the moving tracks of the first shaft 211 relative to the first slot 221 and the second shaft 212 relative to the second slot 222 at the moment when the door body 12 is opened to 90 degrees can be 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 52 degrees, 60 degrees, 70 degrees, or other values between 30 degrees and 70 degrees, which is not limited herein.

[0203] 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 a 90-degree opening state.

[0204] Referring to FIG. 15, in some embodiments, the angle δ between the line connecting the 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 control of the moving 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 a cabinet body, when the door body 12 is opened.

[0205] The angle δ2 between the line connecting the centers of the first shaft 211 and the second shaft 212 and the front wall 121 of the door body 12 when the door body 12 is in a 90-degree opening state can range from -75 degrees to -45 degrees. For example, the angle δ2 between the line connecting the centers of the first shaft 211 and the second shaft 212 and the front wall 121 of the door body 12 when the door body 12 is in a 90-degree opening state can be -75 degrees, -70 degrees, -65 degrees, -60.4 degrees, -55 degrees, -50 degrees, -45 degrees, or other values between -75 degrees and -45 degrees, which is not limited herein.

[0206] 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 when the door body of the refrigeration device of FIG. 1 is in a 90-degree opening state.

[0207] Referring to FIG. 23, in some embodiments, the distance W between the center of the first shaft 211 and the center of the second shaft 212 in the thickness direction of the door body 12 and the distance M between the center of the first shaft 211 and the center of the second shaft 212 in the width direction of the door body are defined to restrict the distance between the first shaft 211 and the second shaft 212, so as to make the layout of the first shaft 211 and the second shaft 212 compact.

[0208] In the case that the door body 12 is at a 90-degree opening, the distance W2 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 is in the range of 5mm to 15mm. Exemplarily, the distance W2 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, 9mm, 11mm, 13mm, 13.7mm, 15mm or other values in the range of 5mm to 15mm when the door body 12 is at a 90-degree opening, which is not specifically limited herein.

[0209] In the case that the door body 12 is at a 90-degree opening, the distance M2 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 is in the range of 5mm to 15mm. Exemplarily, the distance M2 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, 7.8mm, 9mm, 11mm, 13mm, 15mm or other values in the range of 5mm to 15mm when the door body 12 is at a 90-degree opening, which is not specifically limited herein.

[0210] FIG. 27 shows a schematic view of the distance between the door body and the main body of the refrigeration device of FIG. 1 when the door body is at a 90-degree opening.

[0211] 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, the distance between the door body 12 and the main body 11 should be maintained.

[0212] In the case that the door body 12 is at a 90-degree opening, the distance P2 between the door body 12 and the main body 11 is in the range of 5mm to 35mm. Exemplarily, 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 in the range of 5mm to 35mm when the door body 12 is at a 90-degree opening, which is not specifically limited herein.

[0213] FIG. 12 shows a schematic view of the positions of the first shaft and the second shaft of the door body of the refrigeration device of FIG. 1 when the door body is at a maximum opening.

[0214] Referring to Figure 12, in some embodiments, based on usage habits, the opening degree of the door 12 may also be greater than 90 degrees, such as 120 degrees, or even larger degrees; this allows for a more precise match between the hinge assembly 2 and the door 12 in terms of specifications and installation position, thereby taking into account both the large opening degree and ultra-thin specifications of the door; especially in embedded installation conditions.

[0215] It is worth noting that the maximum relative angle between the door 12 and the main body 11 is the maximum angle at which the door is opened. The maximum relative angle between the door 12 and the main body 11 exceeds 90 degrees. After the door is opened to 90 degrees, because there is a certain gap between the door 12 and the cabinet and other surrounding structures, the door 12 can continue to open to the maximum angle for user use. By limiting the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 122 at this position, the posture of the door 12 relative to the main body 11 when the door is opened to the maximum angle is controlled. When the distance between the embedded refrigeration equipment and the cabinet and other surrounding structures is very small, it is ensured that the maximum angle is sufficient for user use, and the relative position of the door 12 is not excessively large, nor is the intrusion too large, thus reducing the risk of interference during use.

[0216] By limiting the arrangement of the first shaft 211 and the second shaft 212 relative to the door body 12 at the maximum opening state, the distance from the first shaft 211 and the second shaft 212 to the front wall 121 and the side wall 122 is smaller. While the hinge assembly 2 itself has a compact structure, the distance between the hinge assembly 2 and the front wall 121 and the side wall 122 is also smaller. The fit between the hinge assembly 2 and the door body 12 is more compact, which makes it easier to reduce the thickness of the door body 12.

[0217] When the door 12 is in its maximum open state, the distance A3 between the axis of the first shaft 211 and the front wall 121 can be 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, or 17mm; or other values ​​between 7mm and 17mm, which are not specifically limited here.

[0218] The distance B3 between the center of the first shaft 211 and the side wall 122 when the door body 12 is in its maximum opening state can be 4.5mm to 14.5mm. For example, the distance B3 between the center of the first shaft 211 and the side wall 122 can be 4.5mm, 6mm, 8mm, 9.7mm, 12mm, 14mm, or 14.5mm; or other values ​​between 4.5mm and 14.5mm, which are not specifically limited here.

[0219] The distance C3 between the axis of the second shaft 212 and the front wall 121 at the maximum opening state of the door body 12 can be in the range of 21 mm to 31 mm. For example, the distance C3 between the axis of the second shaft 212 and the front wall 121 can be 21 mm, 23 mm, 25 mm, 27 mm, 27.4 mm, 29 mm, 31 mm, or other values in the range of 21 mm to 31 mm, which are not limited herein.

[0220] The distance D3 between the axis of the second shaft 212 and the side wall 122 at the maximum opening state of the door body 12 can be in the range of 4 mm to 14 mm. For example, the distance D3 between the axis of the second shaft 212 and the side wall 122 can be 4 mm, 6 mm, 8 mm, 9.6 mm, 10 mm, 12 mm, 14 mm, or other values in the range of 4 mm to 14 mm, which are not limited herein.

[0221] FIG. 20 shows a schematic diagram of the angle between the tangent of the moving track of the first shaft and the second shaft at the maximum opening state of the door body of the refrigeration device of FIG. 1 and the front wall.

[0222] Referring to FIG. 20, in some embodiments, by limiting the angle a3 between the tangent of the moving track of the first shaft 211 and the second shaft 212 relative to the door body 12 and the front wall 121 and the angle b3 between the tangent of the moving track of the second shaft 212 relative to the door body 12 and the front wall 121 at the moment when the door body 12 is opened to the maximum opening state, the moving track of the door body 12 when opened can be constrained, and the amount of intrusion of the door body 12 into the main body can be limited, so as to avoid interference between the door body 12 and the surrounding structure.

[0223] At the moment when the door body 12 is opened to the maximum opening state, the angle a3 between the tangent of the moving track of the first shaft 211 at the first end point relative to the first slot 221 and the front wall 121 can be in the range of -120 degrees to -140 degrees. For example, at the moment when the door body 12 is opened to the maximum opening state, the angle a3 between the tangent of the moving track of the first shaft 211 at the second end point relative to the first slot 221 and the front wall 121 can be -120 degrees, -125 degrees, -129 degrees, -133 degrees, -135 degrees, -140 degrees, or other values in the range of -120 degrees to -140 degrees, which are not limited herein.

[0224] At the moment when the door body 12 is opened to the maximum opening degree, the angle β3 between the tangent of the moving track of the second shaft 212 at the fourth end point 222a relative to the second groove 222 and the front wall 121 is in the range of -55 degrees to -75 degrees. Exemplarily, at the moment when the door body 12 is opened to the maximum opening degree, the angle β3 between the tangent of the moving track of the second shaft 211 at the fourth end point 222c relative to the second groove 222 and the front wall 121 can be -55 degrees, -60 degrees, -65 degrees, -67 degrees, -70 degrees, -75 degrees or other values between -55 degrees and -75 degrees, which is not limited herein.

[0225] In some embodiments, the angle θ3 between the tangent of the moving track of the first shaft 211 relative to the first groove 221 and the tangent of the moving track of the second shaft 212 relative to the second groove 222 at the moment when the door body 12 is opened from the closed state can also be limited, so as to further constrain the opening of the door body and further reduce the risk of interference between the door body and the surrounding structure.

[0226] At the moment when the door body 12 is opened from the closed state, the angle θ3 between the tangent of the moving track of the first shaft 211 relative to the first groove 221 and the tangent of the moving track of the second shaft 212 relative to the second groove 222 can be in the range of 40 degrees to 60 degrees. Exemplarily, at the moment when the door body 12 is opened to the maximum opening degree, the angle θ3 between the tangent of the moving track of the first shaft 211 relative to the first groove 221 and the tangent of the moving track of the second shaft 212 relative to the second groove 222 can be 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 52 degrees, 60 degrees, 70 degrees or other values between 30 degrees and 70 degrees, which is not limited herein.

[0227] FIG. 16 shows a schematic diagram of the angle between the connecting line of the first shaft and the second shaft and the front wall when the door body of the refrigeration device of FIG. 1 is in the maximum opening degree state.

[0228] Referring to FIG. 16, in some embodiments, the angle δ between the connecting line of the shaft 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 moving track of the door body 12 when the door body 12 starts to rotate from the closed state and avoid interference between the door body 12 and the surrounding structure such as the cabinet body when the door body 12 is opened.

[0229] During the process of opening the door body 12 from the closed state, the angle between the connecting line of the shaft centers of the first shaft 211 and the second shaft 212 and the front wall 121 first decreases and then increases, and there is a state in which the connecting line of the shaft centers of the first shaft 211 and the second shaft 212 is parallel to the front wall 121 during the process of opening the door body 12.

[0230] It is to be noted that, for the purpose of distinguishing, 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 located on the side of the second shaft 212 away from the front wall 121, and the angle is negative when the first shaft 211 is located on the side of the second shaft 212 close to the front wall 121.

[0231] When the door body 12 is at the maximum opening degree, the line connecting the centers of the first shaft 211 and the second shaft 212 and the front wall of the door body 12 can form an angle δ3 in the range of -105 degrees to -75 degrees. For example, when the door body 12 is at the maximum opening degree, the line connecting the centers of the first shaft 211 and the second shaft 212 and the front wall of the door body 12 can form an angle δ3 of -105 degrees, -100 degrees, -95 degrees, -90.4 degrees, -85 degrees, -80 degrees, -75 degrees, or other angles in the range of -105 degrees to -75 degrees, without being limited specifically herein.

[0232] In some embodiments, the maximum relative angle between the door body 12 and the main body 11 can be in the range of 115 degrees to 125 degrees. For example, the maximum relative angle between the door body 12 and the main body 11 can be 115 degrees, 117 degrees, 120 degrees, 121 degrees, 123 degrees, 125 degrees, or other angles in the range of 115 degrees to 125 degrees, without being limited specifically herein.

[0233] FIG. 24 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 of FIG. 1 when the door body is at the maximum opening degree.

[0234] Referring to FIG. 24, in some embodiments, the distance between the first shaft 211 and the second shaft 212 is constrained by limiting the distance W between the center of the first shaft 211 and the center of the second shaft 212 in the thickness direction of the door body 12 and the distance M between the center of the first shaft 211 and the 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.

[0235] When the door body 12 is at the maximum opening degree, the distance W3 between the center of the first shaft 211 and the center of the second shaft 212 in the thickness direction of the door body 12 can be in the range of 10 mm to 25 mm. For example, when the door body 12 is at the maximum opening degree, the distance W3 between the center of the first shaft 211 and the 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 in the range of 10 mm to 25 mm, without being limited specifically herein.

[0236] The distance M3 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 is 0-1 mm when the door body 12 is at the maximum opening degree. For example, the distance M3 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 0 mm, 0.1 mm, 0.2 mm, 0.4 mm, 0.5 mm, 0.7 mm, 0.9 mm, 1 mm or a value between 0 mm and 1 mm when the door body 12 is at the maximum opening degree, which is not limited herein.

[0237] FIG. 28 shows a schematic diagram of the distance between the door body and the main body of the refrigeration device of FIG. 1 when the door body is at the maximum opening degree.

[0238] Referring to FIG. 28, 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.

[0239] The distance P3 between the rear wall 124 of the door body 12 and the main body 11 can be 5-30 mm when the door body 12 is at the maximum opening degree. For example, 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 when the door body 12 is at 90 degrees, which is not limited herein.

[0240] In some embodiments, in order to meet the embedded installation requirements of the refrigeration device with an ultra-thin specification door body, the intrusion amount of the door body 12, i.e., the inward movement of the door body 12 to the inside of the main body 11, should be strictly controlled to avoid interference with the structures such as the drawer inside the main body 11.

[0241] The intrusion amount can be set to 0 when the door body 12 is at the closed position. As the door body 12 is opened, the door body 12 is deflected and moves inwardly to the inside of the main body 11, and the intrusion amount gradually increases. For ease of description, the inward movement of the inner side edge 126 relative to the initial position is taken as the intrusion amount when the side wall 122 of the door body 12 is closest to the edge of the main body 11, i.e., the inside edge.

[0242] The inward movement of the inner side edge 126 relative to the side surface of the main body 11 is taken as the limit intrusion amount when the opening degree of the door body 12 is 90 degrees, which is the most commonly used opening degree.

[0243] Therefore, the invasion amount of the door body 12 can be limited to less than 63 mm, and the invasion amount of the door body 12 is controlled in a smaller range, thereby improving the use experience. For example, the invasion 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.

[0244] In some embodiments, the invasion amount of the door body 12 is 56.5 mm, and the vertical distance between the front wall 121 of the door body 12 and the side surface of the main body 11 is only 1 mm, the invasion amount is small, and the user experience is better.

[0245] In some embodiments, the distance A0 between the axis center of the first shaft 211 and the front wall 121 when the door body 12 is in the closed state, and the distance B2 between the first shaft 211 and the side wall 122 when the relative opening degree of the door body 12 and the main body 11 is 90 degrees, can satisfy -3 mm≤B2-A0≤3 mm.

[0246] 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 the distance between the axis center of the first shaft 211 and the side wall 122 is the distance between the axis center 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, 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. Because the first shaft 211 is relatively fixed to the main body 11, the vertical distance between the front wall 121 and the side surface of the main body 11 when the door body 11 is opened to 90 degrees can be calculated by the distance between the axis center of the first shaft 211 and the front wall 121, and the invasion amount of the door body 12 in the 90-degree state can be determined.

[0247] By limiting -3 mm≤B2-A0≤3 mm, the invasion amount of the door body 12 is controlled in a very small range, thereby improving the use experience of the refrigeration equipment. For example, B2-A0 can be -3 mm, -2 mm, -1 mm, 0 mm, 1 mm, 2 mm, 3 mm, or other values between -3 mm and 3 mm, which is not limited herein.

[0248] In some embodiments, in order to adapt to the embedded installation requirements of the refrigeration equipment with an ultra-thin specification door body, the distance between the side wall 122 of the door body 12 close to the hinge assembly 2 and the surrounding structure is very close, and the interference risk with the surrounding structure is large during the opening and closing process of the door body 12. Especially, the outside edge 125 of the junction between the side wall 122 and the front wall 121.

[0249] 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 extent to which the outer side edge 125 exceeds the side surface of the main body 11, i.e., the overbox amount, during the opening and closing of the door body 12 can be strictly controlled, thereby reducing the risk of interference.

[0250] In some embodiments, in order to balance the installation performance and aesthetics, the gap between the refrigeration equipment and the surrounding structure such as the cabinet frame is small; therefore, the overbox amount during the opening and closing of the door body 12 should not exceed 3 mm; for example, the overbox amount can be 1 mm, 1.5 mm, 2 mm or other values within 3 mm.

[0251] 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 of FIG. 1 in the maximum overbox 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 of FIG. 1 and the front wall in the maximum overbox 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 of FIG. 1 and the front wall in the maximum overbox 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 of FIG. 1 in the thickness direction of the door body in the maximum overbox amount state.

[0252] Referring to FIGS. 10, 14, 18 and 22, in some embodiments, in order to achieve the control of the overbox amount within 3 mm, 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 overbox amount of the outer side edge 125 relative to the side surface of the main body 11.

[0253] When the door body 12 is in the limit overbox position, the distance A1 between the axis of the first shaft 211 and the front wall 121 is in the range of 13 mm to 23 mm, the distance B1 between the axis of the first shaft 211 and the side wall 122 is in the range of 9 mm to 19 mm, the distance C1 between the axis of the second shaft 212 and the front wall 121 is in the range of 19 mm to 29 mm, and the distance D1 between the axis of the second shaft 212 and the side wall 122 is in the range of 22 mm to 32 mm. The limit overbox position refers to the position where 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.

[0254] When the door body 12 is rotated to the limit overbox position, the distances of the first shaft 211 and the second shaft 212 to 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 also small, and the matching size of the hinge assembly 2 and the door body 12 is more compact, thereby facilitating the reduction of the thickness of the door body 12.

[0255] In the case that the door body 12 rotates to the over-box limit position, the distance A1 between the axis of the first shaft 211 and the front wall 121 refers to the length of the perpendicular line from the axis of the first shaft 211 to the front wall 121, and the distance A1 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 in the range of 13mm-23mm, which are not limited herein.

[0256] In the case that the door body 12 rotates to the over-box limit position, the distance B1 between the axis of the first shaft 211 and the side wall 122 refers to the length of the perpendicular line from the axis of the first shaft 211 to the side wall 122, and the distance B1 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 in the range of 9mm-19mm, which are not limited herein.

[0257] In the case that the door body 12 rotates to the over-box limit position, the distance C1 between the axis of the second shaft 212 and the front wall 121 refers to the length of the perpendicular line from the axis of the second shaft 212 to the front wall 121, and the distance C1 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 in the range of 19mm-29mm, which are not limited herein.

[0258] In the case that 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 212 to the side wall 122, and the distance D1 is in the range of 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 in the range of 22mm-32mm, which are not limited herein.

[0259] In the case that the door body 12 rotates to the over-box limit position, 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 first shaft 211 and the second shaft 212, the first groove 221 and the second groove 222 are arranged compactly, so that the thickness of the door body 12 can be thinner under the premise of ensuring the rotation angle of the door body 12, and the ultra-thin door requirement of the refrigeration equipment can be met.

[0260] In some embodiments, the relative angle between the door body 12 and the main body 11 can be 25 degrees to 80 degrees when the door body 12 is in the over-box limit position. For example, the relative angle between the door body 12 and the main body 11 can be 65.9 degrees when the door body 12 is in the over-box limit position.

[0261] It can be understood that the side surface of the main body 11 is the surface of the main body 11 close to the cabinet body, and the side wall 122 can be flush with the side surface of the main body 11 when the door body 12 is in the closed state, that is, the outer side edge 125 is aligned with the side surface of the main body 11. When the door body 12 is opened from the closed state, the outer side edge 125 moves relative to the main body 11, and when the door body 12 is opened to a certain angle, the outer side edge 125 extends outward beyond the side surface of the main body 11, thereby having a risk of interfering with the peripheral structure of the cabinet.

[0262] In some embodiments, the outer side edge 125 can also be located inside the side surface of the main body 11 when the door body 12 is in the over-box limit position, so that the door body 12 does not extend beyond the side surface of the main body 11, and the over-box amount of the door body 12, that is, the distance between the outer side edge 125 and the side surface of the main body 12, is identified as a negative value. At this time, the distance between the outer side edge 125 and the side surface of the main body 11 can be -3 mm to 0 mm. For example, the over-box amount can be -3 mm, -2.5 mm, -2 mm, -1.5 mm, -1 mm, -0.5 mm, or other values between -3 mm and 0 mm.

[0263] In some embodiments, in order to balance the convenience of installation and the lower risk of interference, the distance between the outer side edge 125 and the peripheral structure of the cabinet can be greater than or equal to 1 mm when the door body 12 is in the over-box limit position.

[0264] By limiting the distance between the outer side edge 125 and the peripheral structure of the cabinet, the interference between the outer side edge 125 and the peripheral structure of the cabinet is less likely to occur when the outer side edge 125 extends the farthest from the side surface of the main body 11. 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.

[0265] In some embodiments, the included angle δ1 between the line connecting the centers of the first shaft 211 and the second shaft 212 and the front wall can be -51 degrees to -21 degrees when the door body 12 is in the over-box limit position.

[0266] It is worth mentioning that, for the purpose of distinguishing, 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 located on the side of the second shaft 212 away from the front wall 121, and the angle is negative when the first shaft 211 is located on the side of the second shaft 212 close to the front wall 121.

[0267] In the case where the door body 12 is located at the over-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 is not limited herein.

[0268] In some embodiments, when the door body 12 is in the closed state, the first shaft 211 is farthest from the side wall 122, and as the door body 12 rotates, the first shaft 211 gradually approaches the side wall 122. However, in order to take into account the large opening angle and small specification hinge assembly 2, in 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 outer side edge 125; that is, in 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.

[0269] 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 over-box limit position.

[0270] In some embodiments, in the case where the door body 12 is located at the over-box limit position, the distance W1 between the center of the first shaft 211 and the center of the second shaft 212 in the thickness direction of the door body 12 can be in the range of 5 mm-15 mm, and the distance M1 between the center of the first shaft 211 and the center of the second shaft 212 in the width direction of the door body 12 can be in the range of 5 mm-15 mm.

[0271] By limiting the distance between the center of the first shaft 211 and the center of the second shaft 212 in the thickness direction of the door body 12 and the distance between the center of the first shaft 211 and the center 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, the layout of the first shaft 211 and the second shaft 212 is compact, and the occupied space is reduced.

[0272] 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 5 mm, 7 mm, 7.8 mm, 9 mm, 10 mm, 12 mm, 15 mm, or other values between 5 mm and 15 mm, which is not specifically limited herein.

[0273] 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 5 mm, 7 mm, 9 mm, 10 mm, 12 mm, 13.7 mm, 15 mm, or other values between 5 mm and 15 mm, which is not specifically limited herein.

[0274] In some embodiments, 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 relative to the first slot 221 and the front wall 121 is in the range of -25 degrees to -45 degrees, the angle β1 between the tangent of the moving direction of the second shaft 212 relative to the second slot 222 and the front wall 121 is in the range of 50 degrees to 70 degrees, and the angle θ1 between the tangent of the 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 is in the range of 75 degrees to 115 degrees.

[0275] 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 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, 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 are positive.

[0276] By limiting the angle α1 between the tangent of the moving direction of the first shaft 211 relative to 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 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 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 interference between the outer side edge 125 and the cabinet body is avoided.

[0277] Exemplarily, 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 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 is not specifically limited herein.

[0278] Exemplarily, the angle β1 between the tangent of the moving direction of the second shaft 212 relative to the second groove 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 is not limited herein.

[0279] Exemplarily, the angle θ1 between the tangent of the moving direction of the first shaft 211 relative to the first groove 221 and the tangent of the moving direction of the second shaft 212 relative to the second groove 222 can be 75 degrees, 80 degrees, 90 degrees, 102 degrees, 110 degrees, 115 degrees, or other angles between 75 degrees and 115 degrees, which is not limited herein.

[0280] In some embodiments, the refrigeration device can be a refrigerator, a freezer, or the like.

[0281] In the present application, unless specifically defined and limited otherwise, the "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, the "on", "above" and "upper" 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. The "under", "below" and "lower" 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.

[0282] In the description of the present application, it should 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 application and simplifying the description, and does not indicate or imply that the device or element 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 application.

[0283] It should be noted that all directional indications, e.g., "one embodiment", "some embodiments", "an example", "one specific embodiment", or "some examples", in the description are intended to indicate that the described feature is contained in at least one embodiment or example of the present application, and are not necessarily referring to the same embodiment or example. Further, the described features can be combined in any suitable manner in any one or more embodiments or examples of the application. Furthermore, the described features can be combined in any suitable manner in any one or more embodiments or examples of the application.

[0284] In the description of the application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. 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 application. In the description of the application, 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 suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification.

[0285] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, 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, also not within the scope of protection required by the present application.

Claims

1. A refrigeration device comprising: a main body and a door body, the door body comprising a front wall and a side wall arranged at an included angle; 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 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, the second hinge piece being mounted on the door body; wherein the first slot has a first end point, a first inflection point and a second end point, the distances from the first end point and the second end point to the front wall are both 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 is 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 is greater than the distance from the first inflection point to the side wall; the second slot has a third end point, a second inflection point and a fourth end point, the distances from the third end point and the fourth end point to the front wall are both 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 is 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 is greater than the distance from the second inflection point to the side wall; the overall width of the first slot and the second slot in the thickness direction of the door body ranges from 20 mm to 30 mm.

2. The refrigeration appliance of claim 1, wherein, the distance from the first slot and the second slot to the front wall is greater than or equal to 6 mm, and the distance from the first slot and the second slot to the side wall is greater than or equal to 4 mm.

3. The refrigeration appliance of claim 1 or 2, wherein, the included angle between the first inflection point and the line connecting the first end point and the second end point is obtuse.

4. The refrigeration appliance of any of claims 1 to 3, wherein, the tangent of the moving track of the first shaft relative to the first slot between the first end point and the first inflection point and the front wall forms a first included angle, the tangent of the moving track of the first shaft relative to the first slot between the first inflection point and the second end point and the front wall forms a second included angle, and one of the first included angle and the second included angle is obtuse, and the other is acute.

5. The refrigeration appliance of any of claims 1 to 3, wherein, the tangent of the moving track of the second shaft relative to the second slot between the third end point and the second inflection point and the front wall forms a third included angle, the tangent of the moving track of the second shaft relative to the second slot between the second inflection point and the fourth end point and the front wall forms a fourth included angle, and one of the third included angle and the fourth included angle is obtuse, and the other is acute.

6. The refrigeration appliance of any of claims 1-5, wherein, the included angle between the second inflection point and the line connecting the third end point and the fourth end point is obtuse.

7. The refrigeration appliance of claim 6, wherein, the first slot comprises a first circular-arc slot segment and a second circular-arc slot segment connected in series, and the first circular-arc slot segment and the second circular-arc slot segment intersect at the first inflection point; wherein the first end point is located in the first circular-arc slot segment, and the second end point is located in the second circular-arc slot segment.

8. The refrigeration appliance of claim 6 or 7, wherein, the second slot comprises a third circular-arc slot segment, a first elliptical-arc slot segment and a first straight-line slot segment connected in series, the second inflection point is located in the first straight-line slot segment or the first elliptical-arc slot segment, the third end point is located in the third circular-arc slot segment, and the fourth end point is located in the first straight-line slot segment.

9. The refrigeration appliance of any of claims 6 to 8, wherein, The first slot comprises a fourth circular-arc slot segment and a second straight-line slot segment which are connected in sequence, and the fourth circular-arc slot segment and the second straight-line slot segment intersect at the first inflection point; The first end point is located in the fourth circular-arc slot segment, and the second end point is located in the second straight-line slot segment.

10. The refrigeration appliance of any of claims 6 to 9, wherein, The second slot comprises a fifth circular-arc slot segment, a second elliptical-arc slot segment and a third straight-line slot segment which are connected in sequence, the second inflection point is located in the third straight-line slot segment or the second elliptical-arc slot segment, the third end point is located in the fifth circular-arc slot segment, and the fourth end point is located in the third straight-line slot segment.

11. The refrigeration appliance of any of claims 6 to 10, wherein, The end of the first slot is connected to the middle of the second slot, and the distance between the first end point and the second end point is less than or equal to the distance between the first axis and the second axis.

12. The refrigeration appliance of any of claims 1-5, wherein, The thickness of the door body is 42mm-60mm.

13. The refrigeration appliance of any of claims 1-5, wherein, In the process of opening the door body from the closed state to the maximum angle, the intrusion amount of the door body is less than or equal to 63mm.

14. The refrigeration appliance of any of claims 1-5, wherein, In the process of opening the door body from the closed state to the maximum angle, the over-box amount of the door body is less than or equal to 3mm.

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