Refrigeration equipment

Abstract

The utility model discloses refrigeration equipment, and belongs to the technical field of refrigeration, the refrigeration equipment comprises a box body, a door body and a hinge assembly, and the door body comprises a side wall and a front wall; under the condition that the relative angle between the door body and the box body is 90 degrees, the distance between the axis of the first shaft and the front wall is 12-22 mm, the distance between the axis of the first shaft and the side wall is 7-17 mm, the distance between the axis of the second shaft and the front wall is 25-35 mm, and the distance between the axis of the second shaft and the side wall is 13-23 mm. According to the refrigeration equipment, a door can be opened at a large angle under the condition that the door is ultrathin. According to the refrigeration equipment disclosed by the invention, through relatively compact arrangement, on the premise that the rotating angle of the door body is guaranteed, the thickness of the door body can be thinner, and the requirement for an ultrathin door of the refrigeration equipment is met.

Description

Technical Field

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

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

[0003] However, in the related art, embedded refrigeration equipment generally uses a double-axis double-slot hinge to ensure that the door can be opened smoothly, but the double-axis double-slot hinge has a complex structure and occupies a large space. Summary of the Invention

[0004] The present application aims to at least to some extent solve the technical problem that the double-axis double-groove hinge structure is complex and occupies a large space. To this end, the present application provides a refrigeration device that can arrange a double-axis hinge on an ultra-thin door.

[0005] In a first aspect, an embodiment of the present application provides a refrigeration device, comprising:

[0006] A box body and a door body, wherein the door body comprises side walls and a front wall;

[0007] The hinge assembly includes a first hinge member and a second hinge member, the first hinge member is provided with a first axis and a second axis, the second hinge member includes a first groove and a second groove, the first axis and the second axis are fixed on the box body, and the second hinge member is installed on the door body; the first groove includes a first inflection point, a first endpoint and a second endpoint; the first inflection point is located between the first endpoint and the second endpoint and is located on the side of the first groove away from the front wall; the second groove includes a second inflection point, a third endpoint and a fourth endpoint, the second inflection point is located between the third endpoint and the fourth endpoint and is located on the side of the second groove away from the front wall; the first axis slides in the first groove, and the second axis slides in the second groove so that the door body rotates relative to the box body; in the process of the door body moving from a closed state to an open state to a maximum angle, the first axis moves in the first inflection point, the third endpoint and the fourth endpoint The first slot comprises a first slot section and a second slot section connected in sequence, the first slot section and the second slot section are both arc-shaped, the second slot comprises a fourth slot section and a fifth slot section connected in sequence, the fourth slot section is an arc-shaped, and the fifth slot section is an elliptical arc-shaped; when the first slot section slides in the first slot section, the second slot section slides in the fourth slot section; when the first slot section slides in the second slot section, the second slot section slides in the fifth slot section; when the relative angle between the door body and the box body is 90°, the distance between the axis center of the first shaft and the front wall is 12 to 22 mm, the distance between the axis center of the first shaft and the side wall is 7 to 17 mm, the distance between the axis center of the second shaft and the front wall is 25 to 35 mm, and the distance between the axis center of the second shaft and the side wall is 13 to 23 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0009] Figure 1 One of the structural diagrams of the refrigeration equipment is shown; Figure 2 A schematic structural diagram of a first hinge member of a refrigeration device is shown; Figure 3 Shows the second structural diagram of the refrigeration equipment; Figure 4 Shown Figure 3 Enlarged view of point G in the middle; Figure 5 Shows the third structural diagram of the refrigeration equipment; Figure 6 Shows the fourth structural diagram of the refrigeration equipment; Figure 7 The fifth structural diagram of the refrigeration equipment is shown; Figure 8 Shows the sixth structural diagram of the refrigeration equipment; Figure 9 Shows the seventh structural diagram of the refrigeration equipment; Figure 10 The eighth structural diagram of the refrigeration equipment is shown; Figure 11 A ninth structural diagram of a refrigeration device is shown; Figure 12 One of the structural schematic diagrams of the second hinge of the refrigeration equipment is shown; Figure 13 A second structural diagram of the second hinge of the refrigeration equipment is shown; Figure 14 The tenth structural diagram of the refrigeration equipment is shown; Figure 15 The eleventh structural diagram of the refrigeration equipment is shown.

[0010] Reference numerals:

[0011] 110. Box body; 120. Door body; 121. Front wall; 122. Rear wall; 123. Side wall; 124. First edge; 125. Second edge; 130. Cabinet body; 140. Door seal; 200. Hinge assembly; 210. First hinge member; 211. First axis; 212. Second axis; 220. Second hinge member; 221. First slot; 2211. First slot section; 2212. Second slot section; 2213. Third slot section; 221a. First inflection point; 221b. First endpoint; 221c. Second endpoint; 222. Second slot; 2221. Fourth slot section; 2222. Fifth slot section; 2223. Sixth slot section; 2224. Seventh slot section; 222a. Second inflection point; 222b. Third endpoint; 222c. Fourth endpoint. DETAILED DESCRIPTION

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0013] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship and movement status of various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0014] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0015] In addition, in the present invention, descriptions such as "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0016] However, in the related art, embedded refrigeration equipment generally uses a double-axis double-slot hinge to ensure that the door can be opened smoothly, but the double-axis double-slot hinge has a complex structure and occupies a large space.

[0017] The following is combined with Figure 1-12 The present application is described with reference to specific embodiments:

[0018] The first embodiment of the present application provides a refrigeration device. Figures 1 to 4 The refrigeration equipment includes a box body 110, a door body 120 and a hinge assembly 200, the door body 120 includes a side wall 123 and a front wall 121; the hinge assembly 200 includes a first hinge member 210 and a second hinge member 220, the first hinge member 210 is provided with a first shaft 211 and a second shaft 212, the second hinge member 220 includes a first groove 221 and a second groove 222, the first shaft 211 and the second shaft 212 are fixed on the box body 110, and the second hinge member 220 is installed on the door body 120; the first The groove 221 includes a first inflection point 221a, a first endpoint 221b and a second endpoint 221c; the first inflection point 221a is located between the first endpoint 221b and the second endpoint 221c and is located on the side of the first groove 221 away from the front wall 121; the second groove 222 includes a second inflection point 222a, a third endpoint 222b and a fourth endpoint 222c, the second inflection point 222a is located between the third endpoint 222b and the fourth endpoint 222c and is located on the side of the second groove 222 away from the front wall 121.

[0019] The box body 110 is the basic component of the refrigeration equipment and can provide an installation foundation for other structures of the refrigeration equipment. The box body 110 has an opening and a storage cavity for accommodating items. The opening and the storage cavity are connected. The door body 120 is installed at the opening of the box body 110 to cooperate with the box body 110 to seal the storage space and provide a stable storage space for items. The refrigeration equipment can be an electrical appliance such as a refrigerator or a freezer, which is mainly used for freezing or refrigerating items. When it is necessary to place or take items, the door body 120 needs to be opened. In order to be able to open the door body 120, a double-axis double-groove hinge can be used, and the door can be opened and closed by sliding the axis in the groove. In order to ensure the stability of the door body 120 during the opening or closing process, at least two hinge assemblies 200 are provided, and the two hinge assemblies 200 are respectively provided on one side of the upper end and the lower end of the door body 120.

[0020] See also Figure 4 In this embodiment, the second hinge member 220 can be set in a block shape, and the first groove 221 and the second groove 222 are both provided on the same surface of the second hinge member 220. The extension direction of the groove extends along a predetermined trajectory to define the guide direction of the groove. The predetermined trajectories of the first groove 221 and the second groove 222 are different, thereby defining at least two guiding directions.

[0021] See also Figure 2 In this embodiment, the first hinge member 210 may include a base body, and the first shaft 211 and the second shaft 212 are arranged on the same side of the base body and are spaced apart. When the second hinge member 220 cooperates with the first hinge member 210, the shaft can extend into the groove and slide along the extension direction of the groove, thereby enabling the first hinge member 210 and the second hinge member 220 to be hingedly matched. The shaft moves along a predetermined trajectory in the groove so that the first hinge member 210 and the second hinge member 220 can rotate relative to each other according to the predetermined trajectory.

[0022] It should be noted that the relative rotation of the first hinge 210 and the second hinge 220 from the initial state is a forward rotation, which corresponds to the refrigeration equipment that the door body 120 rotates from a closed state to an open state. The first hinge 210 and the second hinge can also rotate relative to each other in the opposite direction and return to the initial state, which corresponds to the refrigeration equipment that the door body 120 rotates from an open state to a closed state. For the convenience of understanding and explanation, in the subsequent description of the process of the shaft moving in the groove, the relative forward rotation of the first hinge 210 and the second hinge 220 is taken as the standard, that is, the door body 120 rotates from a closed state to an open state, and no further details will be given later.

[0023] It should be noted that since the refrigeration equipment is embedded and installed in the cabinet 130, cabinets 130 are provided on both the left and right sides of the refrigeration equipment. Since the door 120 may only interfere with the cabinet 130 on one side during the opening process, the cabinet 130 in this article refers to the cabinet 130 on the side close to the hinge assembly 200, that is, the cabinet 130 located on the left side of the refrigeration equipment. The side wall 123 of the door 120 in this article refers to the side wall 123 on the left side of the door 120. The side of the box 110 in this article refers to the side on the left side of the box 110. The rear wall 122 in this article is the side of the door 120 opposite the front wall 121. The pivot side in this article is the side on which the door 120 is rotatably connected to the box 110. Specifically, when the hinge assembly 200 is provided on the left side of the refrigeration equipment, the pivot side refers to the left side of the box 110. The opening side in this article is the side of the box 110 away from the pivot side.

[0024] It should be noted that the relative rotation of the first hinge 210 and the second hinge 220 from the initial state is a forward rotation, which corresponds to the refrigeration equipment that the door body 120 rotates from a closed state to an open state. The first hinge 210 and the second hinge can also rotate relative to each other in the opposite direction and return to the initial state, which corresponds to the refrigeration equipment that the door body 120 rotates from an open state to a closed state. For the convenience of understanding and explanation, in the subsequent description of the process of the shaft moving in the groove, the relative forward rotation of the first hinge 210 and the second hinge 220 is taken as the standard, that is, the door body 120 rotates from a closed state to an open state, and no further details will be given later.

[0025] See also Figure 9 In some embodiments, when the door body 120 is at 90°, the distance A3 between the axis center of the first axis 211 and the front wall 121 is 12 to 22 mm, the distance B3 between the axis center of the first axis 211 and the side wall 123 is 7 to 17 mm, the distance C3 between the axis center of the second axis 212 and the front wall 121 is 25 to 35 mm, and the distance D3 between the axis center of the second axis 212 and the side wall 123 is 13 to 23 mm.

[0026] See also Figure 9 When the door body 120 is at 90°, the distance A3 between the first axis 211 and the front wall 121, and the distance C3 between the second axis 212 and the front wall 121 are limited to smaller values, so as to make full use of the thickness M of the door body 120 and increase the movement stroke of the first axis 211 and the second axis 212 in the thickness direction of the door body 120 during the process of rotating the door body 120 from the closed state to 90°, which is conducive to meeting the design requirements of ultra-thin doors; the distance between the first axis 211 and the side wall 123, and the distance between the second axis 212 and the side wall 123 are limited to smaller values, the inward displacement of the door body 120 is small, and the intrusion amount is reduced accordingly, thereby reducing the interference of the door body 120 on the use of the drawer.

[0027] When the first axis 211 is located at the first end point 221b, that is, the door body 120 is in a closed state, the distance A1 between the first axis 211 and the front wall 121 is 10 to 20 mm, the distance B1 between the first axis 211 and the side wall 123 is 17 to 27 mm, the distance C1 between the second axis 212 and the front wall 121 is 6 to 16 mm, and the distance D1 between the second axis 212 and the side wall 123 is 30 to 40 mm.

[0028] Since the door body 120 moves relative to the cabinet 110, while the cabinet 110 is stationary, the sliding fit between the first shaft 211 and the first slot 221, and between the second shaft 212 and the second slot 222, occurs on the door body 120. Since the first shaft 211 and the second shaft 212 move in the thickness direction of the door body 120, the door body 120 requires a certain thickness to allow space for the movement trajectories of the first shaft 211 and the second shaft 212. When the first shaft 211 is located at the first endpoint 221b, the distances between the first shaft 211 and the front wall 121, the first shaft 211 and the side wall 123, the second shaft 212 and the front wall 121, and the second shaft 212 and the side wall 123 are limited to relatively small values. Through a relatively compact arrangement, the thickness M of the door body 120 can be made thinner while ensuring the rotation angle of the door body 120, thus meeting the requirements for ultra-thin doors for refrigeration equipment.

[0029] See also Figure 13 In some embodiments, the first groove 221 includes a first groove segment and a second groove segment 2212 connected in sequence, and the first groove segment and the second groove segment 2212 are both arc-shaped. The second groove 222 includes a fourth groove segment 2221 and a fifth groove segment 2222 connected in sequence, the fourth groove segment 2221 is an arc-shaped, and the fifth groove segment 2222 is an elliptical arc. When the first shaft 211 slides in the first groove segment, the second shaft 212 slides in the fourth groove segment 2221. When the first shaft 211 slides in the second groove segment 2212, the second shaft 212 slides in the fifth groove segment 2222.

[0030] The first groove 221 includes a first groove section and a second groove section 2212 connected in sequence, that is, the end of the first groove section is connected to the beginning of the second groove section 2212. The first groove section and the second groove section 2212 are both arc-shaped, but the curvatures of the first and second groove sections 2212 can be different and they can be non-concentric. However, the first and second groove sections 2212 have a smooth transition, so that the first shaft 211 can slide smoothly from the first groove section to the second groove section 2212.

[0031] Similarly, the second slot 222 includes a fourth slot segment 2221 and a fifth slot segment 2222, connected in sequence. Specifically, the end of the fourth slot segment 2221 is connected to the beginning of the fifth slot segment 2222. The fifth slot segment 2222 is shaped like an elliptical arc. An elliptical arc is defined as a portion of an ellipse, i.e., a curved segment between two points on an ellipse. The transition between the fourth slot segment 2221 and the fifth slot segment 2222 is also smooth, ensuring smooth sliding of the second shaft 212 from the fourth slot segment 2221 to the fifth slot segment 2222.

[0032] When the first shaft 211 slides in the first slot section, the second shaft 212 slides in the fourth slot section 2221. When the first shaft 211 slides in the second slot section 2212, the second shaft 212 slides in the fifth slot section 2222, that is, the first slot section corresponds to the fourth slot section 2221, and the second slot section 2212 corresponds to the fifth slot section 2222. In the embodiment of the present application, the connected first and second slot segments 2212 are used to guide the motion trajectory of the first shaft 211, and the connected fourth and fifth slot segments 2221 and 2222 are used to guide the motion trajectory of the second shaft 212; the first and second slot segments 2212 have different curvatures, lengths, and at least one of their relative positions to the second slot 222, so that the motion trajectory of the first shaft 211 changes during the process of switching from the first slot segment to the second slot segment 2212; the fourth and fifth slot segments 2221 and 2222 have different curvatures, lengths, and at least one of their relative positions to the first slot 221, so that the motion trajectory of the second shaft 212 changes during the process of switching from the fourth slot segment 2221 to the fifth slot segment 2222.

[0033] See also Figure 13 In some embodiments, the first groove 221 also includes a third groove segment 2213 connected to the second groove segment 2212, and the third groove segment 2213 is arc-shaped; the second groove 222 also includes a sixth groove segment 2223 and a seventh groove segment 2224 connected in sequence, the sixth groove segment 2223 is connected to the fifth groove segment 2222, the sixth groove segment 2223 is straight, and the seventh groove segment 2224 is arc-shaped; wherein, when the first shaft 211 slides in the third groove segment 2213, the second shaft 212 slides in the sixth groove segment 2223, and when the first shaft 211 rotates around the first shaft 211 in the seventh groove segment 2224.

[0034] The head end of the third slot segment 2213 is connected to the end of the second slot segment 2212, so that the first slot 221 forms a continuous structure. In the process of opening the door body 120 from a closed state to the maximum angle, the first axis 211 moves in the first slot segment, the second slot segment 2212 and the third slot segment 2213 in sequence; the head end of the sixth slot segment 2223 is connected to the end of the fifth slot segment 2222, and the head end of the seventh slot segment 2224 is connected to the end of the sixth slot segment 2223, so that the second slot 222 forms a continuous structure. In the process of opening the door body 120 from a closed state to the maximum angle, the first axis 211 moves in the fourth slot segment 2221, the fifth slot segment 2222, the sixth slot segment 2223 and the seventh slot segment 2224 in sequence.

[0035] In the embodiment of the present application, the first slot segment 2212 and the third slot segment 2213 are connected to guide the motion trajectory of the first shaft 211, and the fourth slot segment 2221, the fifth slot segment 2222, the sixth slot segment 2223 and the seventh slot segment 2224 are connected to guide the motion trajectory of the second shaft 212; the curvature, length and relative position of the first slot segment 2212, the second slot segment 2213 and the third slot segment 2213 to the second slot 222 are different, so that the first shaft 211 is switched from the first slot segment to the second slot segment 2 212 or in the process of switching from the second slot segment 2212 to the third slot segment 2213, the motion trajectory of the first shaft 211 changes; the curvature, length and relative position of the fourth slot segment 2221, the fifth slot segment 2222, the sixth slot segment 2223 and the seventh slot segment 2224 to the first slot 221 are different, so that the motion trajectory of the second shaft 212 changes during the sliding of the fourth slot segment 2221, the fifth slot segment 2222, the sixth slot segment 2223 and the seventh slot segment 2224.

[0036] The present application divides the first groove 221 and the second groove 222 into a plurality of groove segments, so that the motion trajectories of the first axis 211 and the second axis 212 are changed, thereby achieving large-angle door opening under the premise of an ultra-thin door. By switching between a plurality of groove segments, the curvature of a single groove segment can be reduced as much as possible, so that the sliding of the first axis 211 or the second axis 212 in a single groove segment is smoother, resulting in a smoother door opening process.

[0037] The first axis 211 is closer to the pivot side relative to the second axis 212. During the process of opening the door body 120 from a closed state to a maximum angle, the displacement of the first axis 211 relative to the first slot 221 is much smaller than the displacement of the second axis 212 relative to the second slot 222. The first slot section, the second slot section 2212 and the third slot section 2213 are arc-shaped. The first axis 211 guides the rotation direction of the first hinge 210 and the second hinge 220, which is conducive to achieving a large-angle door opening under the premise of an ultra-thin door; the second axis 212 is farther away from the pivot side relative to the first axis 211. During the process of opening the door body 120 from a closed state to a maximum angle, the displacement of the second axis 212 in the second slot 222 is much larger than the displacement of the first axis 211 in the first slot 221. The sixth slot section 2223 is a straight line, so that the second axis 212 can move quickly in the second slot 222. The sixth slot segment 2223 is in a straight line shape, which means that the sixth slot segment 2223 can be in a straight line shape or in an arc shape that is approximately a straight line, and there is no limitation to this.

[0038] The first shaft 211 rotates around a fixed axis in the third slot section 2213, that is, the first shaft 211 rotates on its own axis without sliding relative to the third slot section 2213. At the same time, the second shaft 212 rotates around the first shaft 211 in the seventh slot section 2224, that is, the second shaft 212 rotates around the first shaft 211 with the first shaft 211 as the center of the circle, and will move relative to the seventh slot section 2224.

[0039] See also Figure 13 In some embodiments, when the door body 120 rotates from a closed state to a first angle relative to the box body 110, the first shaft 211 slides in the first groove section, so that the first shaft 211 slides from the first end point 221b toward the first inflection point 221a and makes a circular motion relative to the first groove 221, and the second shaft 212 slides in the fourth groove section 2221, so that the second shaft 212 slides from the third end point 222b toward the second inflection point 222a and makes a circular motion relative to the second groove 222.

[0040] The motion trajectory of the first axis 211 from the first endpoint 221b to the first inflection point 221a is an arc motion, which makes the sliding of the first axis 211 smoother; the motion trajectory of the second axis 212 from the second endpoint 221c toward the second inflection point 222a is an arc motion, which makes the movement of the second axis 212 more flexible.

[0041] Specifically, when the door body 120 is opened from the closed state to the first angle, the first shaft 211 slides in the first slot section, and the second shaft 212 slides in the fourth slot section 2221. Specifically, the first angle is 8° to 12°.

[0042] During the process of the door body 120 rotating from the first angle to the second angle relative to the box body 110, the first shaft 211 slides in the second groove section 2212, so that the first shaft 211 slides toward the second end point 221c through the first inflection point 221a and makes a circular motion relative to the first groove 221, and the second shaft 212 slides in the fifth groove section 2222, so that the second shaft 212 slides toward the second inflection point 222a and makes an elliptical motion relative to the second groove 222.

[0043] During the process of the door body 120 rotating from the second angle to the third angle relative to the box body 110, the first shaft 211 slides in the third slot section 2213, causing the first shaft 211 to slide toward the second endpoint 221c and perform circular motion relative to the first slot 221. The second shaft 212 slides in the sixth slot section 2223, causing the second shaft 212 to pass through the second inflection point 222a toward the fourth endpoint 222c and perform linear motion relative to the second slot 222. Specifically, the second angle is 88° to 92°, and the third angle is 113° to 117°.

[0044] During the process of the door body 120 rotating from the second angle to the third angle relative to the box body 110, the first shaft 211 slides toward the second end point 221c and makes a circular motion relative to the first slot 221, and the second shaft 212 passes through the second inflection point 222a toward the fourth end point 222c and makes a linear motion relative to the second slot 222; the second angle is 90°. When the door body 120 rotates to the second angle, the door body 120 opens to a larger range relative to the box body 110, and the possibility of interference between the door body 120 and the cabinet body 130 or the box body 110 is small. The second shaft 212 makes a linear motion relative to the second slot 222, so that the displacement of the second shaft 212 in the second slot 222 is large, which speeds up the opening speed of the door body 120 to achieve a large-angle door opening.

[0045] During the process of the door body 120 rotating from the third angle to the maximum angle relative to the box body 110, the first shaft 211 rotates around the third axis in the third groove section 2213 and the first shaft 211 is located on the second end point 221c, and the second shaft 212 rotates around the first axis 211 in the seventh groove section 2224; during the process of the door body 120 rotating from the third angle to the maximum angle relative to the box body 110, the first shaft 211 is on the second end point 221c, and the second shaft 212 makes a circular motion relative to the second groove 222 with the second end point 221c as the center.

[0046] In this context, fixed-axis rotation means that the first axis 211 and the second axis 212 rotate about a fixed point and no longer move. That is, as the door body 120 opens from the third angle to the maximum angle, the first axis 211 and the second axis 212 cease to move. The first axis 211 rotates around a fixed axis at the end of the second trajectory, and the second axis 212 rotates around a fixed axis at the end of the fourth trajectory. Specifically, the maximum angle can be any angle between 115° and 130°, for example, the maximum angle can be 120°. It is understood that the first angle is smaller than the second angle, and the second angle is smaller than the third angle.

[0047] In some embodiments, the first slot 221 further includes a third slot segment 2213 connected to the second slot segment 2212, and the third slot segment 2213 is arc-shaped. The second slot 222 further includes a sixth slot segment 2223 connected to the fifth slot, and the sixth slot segment 2223 is linear. When the first shaft 211 slides in the third slot segment 2213, the second shaft 212 slides in the sixth slot segment 2223. In other words, the second slot 222 may include only the fourth slot segment 2221, the fifth slot segment 2222, and the sixth slot segment 2223. In addition, the first shaft 211 does not rotate relative to the third slot segment 2213, and the second slot 222 also slides in the sixth slot segment 2223. Specifically, when the door body 120 is opened from the second angle to the maximum angle, the first shaft 211 slides in the third slot segment 2213, and the second shaft 212 slides in the sixth slot segment 2223.

[0048] See also Figure 5 The distance A1 between the first axis 211 and the front wall 121 represents the vertical distance between the axis center of the first axis 211 and the front wall 121, and the distance B1 between the first axis 211 and the side wall 123 represents the vertical distance between the axis center of the first axis 211 and the side wall 123. Similarly, the distance C1 between the second axis 212 and the front wall 121 represents the vertical distance between the axis center of the second axis 212 and the front wall 121, and the distance D1 between the second axis 212 and the side wall 123 represents the vertical distance between the second axis 212 and the side wall 123.

[0049] The difference between the distance A1 between the first axis 211 and the front wall 121 and the distance B1 between the first axis 211 and the side wall 123, and the distance C1 between the second axis 212 and the side wall 123 is greater than the distance D1 between the first axis 211 and the side wall 123, which reserves a larger space for the second axis 212 to move in the width direction of the door body 120, thereby improving the flexibility of the relative rotation between the first hinge 210 and the second hinge 220, and making the door opening process smoother.

[0050] Specifically, the distance A1 between the first axis 211 and the front wall 121 can be 14mm, 16mm, 18mm, 20mm, or 22mm, the distance B1 between the first axis 211 and the side wall 123 can be 10mm, 12mm, 14mm, 16mm, or 18mm, the distance C1 between the second axis 212 and the front wall 121 can be 20mm, 22mm, 24mm, 26mm, or 28mm, and the distance D1 between the second axis 212 and the front wall 121 can be 23mm, 25mm, 27mm, 29mm, or 31mm.

[0051] In which, in the process of the door body 120 opening from the closed state to the maximum angle, the first shaft 211 slides relative to the first groove 221, and the second shaft 212 slides relative to the second groove 222; when the first shaft 211 moves from the first end point 221b toward the first inflection point 221a, the second shaft 212 moves from the third end point 222b toward the second inflection point 222a; when the first shaft 211 moves from the first inflection point 221a toward the second end point 221c, the second shaft 212 slides toward the second inflection point 222a, and moves toward the fourth end point 222c through the second inflection point 222a, and the distance between the first shaft 211 and the second shaft 212 is fixed.

[0052] The first shaft 211 can be slidably fitted in the first groove 221, and the second shaft 212 can be slidably fitted in the second groove 222. The longer the paths of the first shaft 211 and the second shaft 212 (because the first shaft 211 slides in the first groove 221 and the second shaft 212 slides in the second groove 222, the stroke of the first shaft 211 is roughly equal to the length of the first groove 221, and the stroke of the second shaft 212 is roughly equal to the length of the second groove 222), that is, the longer at least one of the first groove 221 and the second groove 222 is, the larger the opening angle of the door body 120 is.

[0053] In the process of opening the door body 120 from a closed state to the maximum angle, the first axis 211 moves from the first end point 221b through the first inflection point 221a to the second end point 221c, so that the first axis 211 first moves away from the front wall 121 and then moves closer to the front wall 121, and the second axis 212 moves from the third end point 222b through the second inflection point 222a to the fourth end point 222c, so that the second axis 212 first moves away from the front wall 121 and then moves closer to the front wall 121, that is, in the process of opening the door, the trajectory of the first axis 211 at least partially overlaps in the thickness direction of the door body 120 (the first groove 221 at least partially overlaps in the thickness direction of the door body 120), and the trajectory of the second axis 212 also at least partially overlaps in the thickness direction of the door body 120 (the second groove 222 at least partially overlaps in the thickness of the door body 120). That is, under the condition of the same track length, the first groove 221 has a first inflection point 221a and the second groove 222 has a second inflection point 222a, so that under the condition of the same track length, a smaller space can be occupied in the thickness direction of the door body 120, the thickness M of the door body 120 can be reduced, and a large angle opening can be achieved in the case of an ultra-thin door.

[0054] See also Figures 5 and 6 , when the first shaft 211 moves from the first end point 221b toward the first inflection point 221a and the second shaft 212 moves from the third end point 222b toward the second inflection point 222a, the first shaft 211 and the second shaft 212 both move in the direction away from the front wall 121; it can be seen that when the first shaft 211 slides relative to the first groove 221 and the second shaft 212 slides relative to the second groove 222, the first shaft 211 and the second shaft 212 move away from or close to the front wall 121, so that the door body 120 has a larger lateral movement range to offset the displacement caused by the first edge 124 at the junction of the front wall 121 and the side wall 123 rotating away from the pivot side during the opening process of the door body 120, providing more flexibility for the relative rotation of the first hinge 210 and the second hinge 220 to achieve a large angle of door opening.

[0055] When the first shaft 211 moves from the first inflection point 221a toward the second endpoint 221c, the second shaft 212 slides toward the second inflection point 222a, and passes through the second inflection point 222a toward the fourth endpoint 222c, the first shaft 211 moves toward the direction close to the front wall 121, and the second shaft 212 first moves in the direction away from the front wall 121, and then moves in the direction close to the front wall 121. The first shaft 211 guides the rotation direction of the door body 120, and the second shaft 212 moves back and forth between the front wall 121 and the rear wall 122, so that the second shaft 212 forms a longer stroke in the case of the ultra-thin door body 120, thereby realizing a large-angle door opening.

[0056] The door body 120 is in a closed state, a first gap is reserved between the first axis 211 and the first endpoint 221b, and a second gap is reserved between the second axis 212 and the third endpoint 222b. The first gap and the second gap can be less than or equal to 2 mm to ensure that the door body 120 has a negative closing angle of -2° to -5°.

[0057] In the refrigeration device of this embodiment, the sliding of the two shafts within the two grooves can be unidirectional. That is, the paths of movement of the first shaft 211 within the first groove 221 do not overlap, and the paths of movement of the second shaft 212 within the second groove 222 do not overlap. The movement trajectories of the two shafts within the two grooves are unique and fixed, making the opening process of the door body 120 smoother and reducing the failure rate of the hinge assembly 200, thereby improving the user experience. Of course, in other embodiments, the first shaft 211 can move back and forth in the direction of extension of the first groove 221, and the second shaft 212 can move back and forth in the direction of extension of the second groove 222. This embodiment of the present application is not particularly limited to this.

[0058] See also Figures 5 and 6 When the first shaft 211 moves from the first inflection point 221a toward the second end point 221c, the second shaft 212 slides toward the second inflection point 222a and passes through the second inflection point 222a toward the fourth end point 222c. The first shaft 211 moves in the direction close to the front wall 121, and the second shaft 212 first moves in the direction away from the front wall 121, and then moves in the direction close to the front wall 121. Compared with the second shaft 212, the sliding stroke of the first shaft 211 in the first groove 221 is smaller, and the displacement of the first shaft 211 relative to the first groove 221 is smaller. In this process, the second shaft 212 moves in the thickness direction of the door body 120, and the movement stroke of the second shaft 212 is large, so that the second shaft 212 makes a large circular arc motion or elliptical motion around the first shaft 211, and the rotation amplitude of the door body 120 increases accordingly, thereby achieving a large-angle door opening in the case of an ultra-thin door.

[0059] See also Figure 4 During the opening process of the door body 120, the displacement caused by the first edge 124 at the junction of the front wall 121 and the side wall 123 rotating away from the pivot side can offset the displacement caused by the movement of the door body 120 toward the pivot side, so that the side of the door body 120 will not exceed the frame of the box body 110, and interference between the door body 120 and the cabinet body 130 can be avoided as much as possible.

[0060] See also Figures 6 to 8 In some embodiments, when the first axis 211 is located at the first inflection point 221a, the second axis 212 is offset from the second inflection point 222a; when the second axis 212 is located at the second inflection point 222a, the first axis 211 is offset from the first inflection point 221a.

[0061] It can be understood that the first axis 211 needs to change the direction of movement at the first inflection point 221a and the second axis 212 needs to change the direction of movement at the second inflection point 222a, and the displacement of the first axis 211 at the first inflection point 221a and the second axis 212 at the second inflection point 222a is relatively small; if the first axis 211 is at the first inflection point 221a and the second axis 212 is at the second inflection point 222a at the same time, then the first axis 211 and the second axis 212 change the direction of movement at the same time. At this time, the relative displacement of the first axis 211 relative to the first groove 221 and the relative displacement of the second axis 212 relative to the second groove 222 are small, resulting in a small rotation amplitude of the door body 120 relative to the box body 110, and it is easy to cause jamming.

[0062] See also Figure 6 , when the first shaft 211 is located at the first inflection point 221a, the second shaft 212 is offset from the second inflection point 222a, the first shaft 211 changes its movement direction in the first groove 221 and the displacement of the first shaft 211 relative to the first groove 221 is very small, the second shaft 212 is offset from the second inflection point 222a, and the second shaft 212 can move between the third endpoint 222b and the second inflection point 222a, or the second shaft 212 can move between the fourth endpoint 222c and the second inflection point 222a.

[0063] See also Figure 8 , when the second axis 212 is located at the second inflection point 222a, the first axis 211 is staggered with the first inflection point 221a, the second axis 212 changes its movement direction in the second groove 222 and the displacement of the second axis 212 relative to the second groove 222 is very small, the first axis 211 is staggered with the first inflection point 221a, the first axis 211 can be moved between the first endpoint 221b and the first inflection point 221a, or the first axis 211 can be moved between the second endpoint 221c and the first inflection point 221a; when one of the first axis 211 and the second axis 212 is located at the corresponding inflection point, the other is staggered with the corresponding inflection point and makes a large range of displacement relative to the corresponding groove, so that the rotation between the first hinge 210 and the second hinge 220 is more flexible, ensuring that the door body 120 opens smoothly without exceeding the side of the box body 110.

[0064] See also Figure 6In some embodiments, when the first shaft 211 is located at the first inflection point 221a, the first shaft 211 changes its direction of movement at the first inflection point 221a, from moving from the first end point 221b toward the first inflection point 221a to moving from the first inflection point 221a toward the second end point 221c. During this turning process, the displacement of the first shaft 211 relative to the first slot 221 is extremely small. At this time, if the second shaft 212 is also located at the second inflection point 222a, it is easy to get stuck, causing the door body 120 to be unable to rotate relative to the box body 110, resulting in failure to open the door; when the first shaft 211 is located at the first inflection point 221a, the second shaft 212 moves from the third end point 222b toward the second inflection point 222a, and the second shaft 212 is away from the front wall 121, so that when the first shaft 211 changes its direction of movement in the first slot 221, the door body 120 can still move toward the side away from the pivot, thereby improving the flexibility of the door body 120 rotation and avoiding hitting the cabinet body 130 during the door opening process.

[0065] See also Figure 8 In some embodiments, when the second shaft 212 is located at the second inflection point 222a, the second shaft 212 changes its direction of movement at the second inflection point 222a, and changes from moving from the third end point 222b toward the second inflection point 222a to moving from the second inflection point 222a toward the fourth end point 222c. During this turning process, the displacement of the second shaft 212 relative to the second slot 222 is extremely small. At this time, if the first shaft 211 is also located at the first inflection point 221a, it is easy to get stuck, resulting in the door body 120 being unable to rotate relative to the box body 110, causing the door to fail to open; when the second shaft 212 is located at the second inflection point 222a, the first shaft 211 moves toward the second end point 221c, and the first shaft 211 is close to the front wall 121, so that when the second shaft 212 changes its direction of movement in the second slot 222, the door body 120 can still move toward the side away from the pivot, thereby improving the flexibility of the door body 120 rotation and avoiding hitting the cabinet body 130 during the door opening process.

[0066] See also Figures 8 to 11 In some implementations, when the door body 120 rotates to its maximum angle relative to the housing 110, after the first axis 211 passes the first inflection point 221a, the second axis 212 passes the second inflection point 222a. This prevents the first axis 211 and the second axis 212 from being at the inflection points at the same time, which could cause the door body 120 to get stuck or pause during the opening process. This makes the door body 120 opening process smoother and improves the user experience. The first axis 211 is closer to the pivot side than the second axis 212. The first axis 211 passes the first inflection point 221a first, so that the first axis 211 no longer moves away from the front wall 121. The second axis 212 has not reached the second inflection point 222a, and the second axis 212 continues to move away from the front wall 121, causing the door body 120 to rotate a larger angle relative to the housing 110 during this process.

[0067] In some embodiments, the angle between the line connecting the first endpoint 221b and the first inflection point 221a and the line connecting the first inflection point 221a and the second endpoint 221c is less than 100°, so that when the door body 120 rotates to the maximum angle relative to the box body 110, while ensuring that the door body 120 has sufficient displacement in the lateral direction, the distance between the first axis 211 and the side wall 123 is as small as possible to reduce the displacement of the door body 120 toward the box body 110.

[0068] In one embodiment, when the door body 120 is opened from a closed state to a maximum angle relative to the box body 110 , the inward movement of the door body 120 is greater than 0 mm and less than 3 mm.

[0069] The first shaft 211 slides in the first groove 221, and the second shaft 212 slides in the second groove 222, so that the first hinge and the second hinge move relative to each other along a set trajectory, so that the door body 120 opens; the inward displacement of the door body 120 during the opening process is limited, and the intrusion amount of the door body 120 is reduced, thereby reducing the probability of the door body 120 interfering with the pulling and pulling of the drawer in the box body 110, reserving more space for the pulling and pulling of the drawer, which is conducive to maximizing the drawer capacity and increasing the capacity of the refrigeration equipment.

[0070] In the related art, in order to allow the door body to avoid the cabinet body and the box body, the door body generally moves laterally a long distance, resulting in a large intrusion amount, which has a great impact on the internal design of the refrigeration equipment. For example, the width of the drawer needs to be reduced to facilitate the pulling and pulling of the drawer. The wider the drawer, the more internal storage space the refrigeration equipment has. After the door body is opened, the lateral movement distance of the door body from the pivot side of the box body to the opening side will encroach on the active space for the drawer to be pulled out of the box body opening, which may hinder the pulling and pulling of the drawer. The intrusion amount is the amount of intrusion of the door body into the active space for the drawer to be pulled out of the box body opening. The greater the inward movement, the greater the intrusion amount, and the smaller the maximum width of the drawer.

[0071] The intrusion amount is the distance between the second edge 125 at the junction of the rear wall 122 and the side wall 123 and the side of the box body 110; the inward displacement is the difference between the intrusion amount and the thickness of the door body. It should be noted that the door body may be provided with an arc chamfer, so that the rear wall 122 and the side wall 123 are connected by an arc surface. In this case, the intrusion amount can be the distance between the connecting edge of the arc surface and the rear wall 122 or the side wall 123 and the side of the box body 110, or the intrusion amount can also be the distance between the midpoint of the arc of the arc surface and the side of the box body 110. The door body may be provided with a bevel chamfer, so that the rear wall 122 and the side wall 123 are connected by a bevel surface. In this case, the intrusion amount can be the distance between the connecting edge of the bevel and the rear wall 122 and the side of the box body 110, or the intrusion amount can also be the distance between the connecting edge of the bevel and the side wall 123 and the side of the box body 110.

[0072] When the door body 120 is at 90 degrees, the inward displacement of the door body 120 is a first set value. When the door body 120 is at the maximum angle, the inward displacement of the door body 120 is a second set value, and the first set value is greater than the second set value; so that in the process of the door body rotating from 90 degrees to the maximum angle, the door body 120 no longer moves laterally from the pivot side of the box body 110 to the opening side. Therefore, the intrusion amount of the door body 120 when the door body 120 is at 90 degrees is greater than the intrusion amount of the door body at the maximum angle. While ensuring that the drawer can be smoothly pulled out of the box body 110, a large angle opening can be achieved, improving the user experience. For example, the first set value can be 3mm, and the second set value can be 1mm. The maximum angle is greater than 110° and less than 140°. The maximum angle is greater than 110° and less than 140°. For example, the maximum angle can be 112°, 120°, or 121°. In this embodiment, the maximum angle is 136°.

[0073] The amount of inward movement is the direction from the pivot side of the door body 120 to the opening side of the box body 110 relative to the closed state (as shown in Figures 1 and Figure 3 The smaller the inward displacement, the smaller the distance the door body 120 moves toward the center of the opening of the box body 110, the smaller the intrusion amount, and the smaller the chance of interference with the drawer. At the same time, the drawer can also be made wider to increase the storage space. Since the rotation of the door body 120 is a dynamic change process, when the door body 120 is at different rotation angles, the lateral movement distance of the door body 120 from the pivot side to the open side of the box body 110 relative to the closed state is different, and the inward displacement is different, resulting in different intrusion amounts.

[0074] The size of the intrusion amount is related to the size of the inward displacement and the thickness M of the door body 120. When the inward displacement is the same, the thicker the door body 120, the greater the intrusion amount and the higher the probability of interference with the drawer.

[0075] In some embodiments, the thickness M of the door body 120 is 30 mm to 50 mm. By reducing the thickness M of the door body 120, while improving aesthetics and saving space, the intrusion of the door body 120 can be optimized to a certain extent, thereby reducing the interference of the door body 120 with the drawer after opening. This helps maximize the drawer capacity, increases the capacity of the refrigeration equipment, and reduces the interference of the door body 120 with the user's retrieval operation, thereby improving the usability test. Specifically, the thickness M of the door body 120 can be 32 mm, 34 mm, 38 mm, 42 mm, or 46 mm.

[0076] In some embodiments, see Figure 9When the door body 120 is at 90°, the inward movement of the door body 120 is the maximum inward movement, so that in the process of the door body 120 rotating from 90° to the maximum angle, the door body 120 no longer moves laterally from the pivot side to the opening side of the box body 110. Therefore, when the door body 120 is at 90°, the intrusion amount of the door body 120 is the maximum intrusion amount, while ensuring that the drawer can be smoothly pulled out of the box body 110, a large angle opening can be achieved, thereby improving the user experience.

[0077] In some embodiments, see Figure 9 The opening of the box 110 is provided with a door seal 140, which is mounted on the door 120. When the door 120 is closed, the door seal 140 is clamped between the rear wall 122 and the box 110, providing a seal and thermal insulation. When the door 120 is at a 90° angle, the intrusion amount of the door 120 is the first intrusion amount H1, which is the vertical distance between the inner side of the door 120 and the side of the box 110.

[0078] In some embodiments, see Figure 5 and Figure 9 The first hinge 210 is provided on the housing 110, and the second hinge 220 is provided on the door 120. When the door 120 is in the closed state, a first distance A1 is provided between the first axis 211 and the side wall 123. When the door 120 is at a 90° angle, a second distance A3 is provided between the first axis 211 and the front wall 121. The difference between the first distance A1 and the second distance A3 is less than or equal to 3 mm. When the door 120 rotates from the closed state to 90°, the distance that the door 120 moves laterally from the pivot side of the housing 110 to the opening side is less than 3 mm. While ensuring that the door 120 does not squeeze the housing 110, the width of the drawer is maximized to increase the capacity of the refrigeration equipment. Specifically, the difference between the first distance A1 and the second distance A3 can be 0.5 mm, 1.5 mm, or 2.5 mm.

[0079] It can be understood that when the door body 120 is in the closed state, the side wall 123 of the door body 120 is aligned with the side of the box body 110. Therefore, the distance between the axis center of the first axis 211 and the side wall 123 is the distance between the axis center of the first axis 211 and the side of the box body 110; when the door body 120 is at 90°, the side wall 123 is rotated to be perpendicular to the side of the box body 110, and the front wall 121 is parallel to the side of the box body 110. Because the first axis 211 is relatively fixed to the box body 110, the vertical distance between the front wall 121 and the side of the box body 110 when the door body 120 is opened to 90° can be calculated through the distance between the axis center of the first axis 211 and the front wall 121, and then the distance between the inner side surface of the door body 120 and the side surface of the box body 110 in the 90° state can be calculated, that is, the first intrusion amount H1. By limiting the difference between the first distance A1 and the second distance A3 to less than or equal to 3 mm, the intrusion amount of the door body 120 is controlled within a very small range, thereby improving the user experience of the refrigeration equipment. Specifically, when the door body 120 is at 90 degrees, the first intrusion amount H1 of the door body 120 can be 35 mm, 36 mm, or 5 mm.

[0080] See also Figure 9 In some embodiments, when the door 120 is at a 90° angle, the inward displacement of the door 120 is less than 2 mm. By limiting the inward displacement of the door 120, the first intrusion amount H1 of the door 120 is controlled, so that the intrusion amount of the door 120 from the pivot side to the opening side of the box body 110 is minimized, thereby maximizing the width of the drawer. Specifically, when the door 120 is at a 90° angle, the inward displacement of the door 120 can be 1 mm, 1.5 mm, or 2 mm.

[0081] See also Figure 9 In some embodiments, when the door body 120 is at 90 degrees, the intrusion amount of the door body 120 is equal to the sum of the inward displacement of the door body 120 and the thickness M of the door body 120. As shown in the figure, Figure 5 Where M is the thickness of the door body 120, and O is the inward displacement of the door body 120 when the door body 120 is at 90 degrees.

[0082] It can be understood that when the door body 120 is at 90°, the side wall 123 is rotated to be perpendicular to the side of the box body 110, and the front wall 121 is parallel to the side of the box body 110. At this time, the inward displacement of the door body 120 is the distance between the side of the box body 110 and the front wall 121, and the intrusion amount of the door body 120 is the distance between the side of the box body 110 and the inner side of the door body 120, that is, the inward displacement of the door body 120 is equal to the sum of the inward displacement of the door body 120 and the thickness M of the door body 120.

[0083] See also Figure 11In some embodiments, when the relative angle between the door body 120 and the box body 110 is at the maximum angle, that is, when the second axis 212 is located at the second end point 221c, the intrusion amount of the door body 120 is the second intrusion amount H2, which is less than or equal to the intrusion amount of the door body 120 when the door body 120 is at 90°. In the process of rotating the door body 120 from 90° to the maximum angle, the intrusion amount of the door body 120 continues to decrease, thereby maximizing the width of the drawer and achieving large-capacity storage.

[0084] In some embodiments, the door 120 has a clearance of less than 1 mm. The clearance is the distance the door 120 moves toward the cabinet 130 during the process of rotating from the closed position to the maximum relative angle with the cabinet 110. Limiting the clearance to a small value prevents the door 120 from squeezing the cabinet 130.

[0085] See also Figure 7 In some embodiments, the side wall 123 intersects with the front wall 121 at the first edge 124. When the first edge 124 is in the first position, the distance A2 between the first axis 211 and the front wall 121 is 13 mm to 23 mm, and the distance B2 between the first axis 211 and the side wall 123 is 9 mm to 19 mm. The distance C2 between the second axis 212 and the front wall 121 is 19 mm to 29 mm, and the distance D2 between the second axis 212 and the side wall 123 is 22 mm to 32 mm. The first position indicates the position where the distance between the first edge 124 and the cabinet body 130 is the smallest.

[0086] The door body 120 also includes a rear wall 122 disposed opposite the front wall 121. The rear wall 122 is disposed toward the opening of the cabinet 110. The rear wall 122 intersects with the side wall 123 at a second edge 125. During the rotation of the door body 120 relative to the cabinet 110, the second edge 125 can move away from the cabinet 130, while the first edge 124 moves toward the cabinet 130. When the door body 120 rotates to a certain angle, the distance between the first edge 124 and the cabinet 130 is minimized, and the first edge 124 is now in a first position. When the door body 120 continues to rotate past this angle, the first edge 124 moves away from the cabinet 130, while the second edge 125 moves toward the cabinet 130.

[0087] That is, the first edge 124 is located at the first position during the rotation of the door body 120. Specifically, when the rotation angle of the door body 120 relative to the box body 110 is 40° to 50°, the first edge 124 is located at the first position.

[0088] See also Figure 7In the embodiment of the present application, since the first edge 124 is in the first position, the distances between the first axis 211 and the front wall 121, the first axis 211 and the side wall 123, the second axis 212 and the front wall 121, and the second axis 212 and the side wall 123 are limited to smaller values, that is, the movement trajectories of the first axis 211 and the second axis 212 are relatively compact. Since the first axis 211 slides in the first groove 221 and the second axis 212 slides in the second groove 222, the first groove 221 and the second groove 222 are also compactly arranged, thereby reducing the space occupied by the hinge assembly 200, so that the thickness M of the door body 120 can be thinner, meeting the ultra-thin door requirements of refrigeration equipment.

[0089] Specifically, the distance A2 between the first axis 211 and the front wall 121 can be 14mm, 16mm, 18mm, 20mm, or 22mm, the distance B2 between the first axis 211 and the side wall 123 can be 10mm, 12mm, 14mm, 16mm, or 18mm, the distance C2 between the second axis 212 and the front wall 121 can be 20mm, 22mm, 24mm, 26mm, or 28mm, and the distance D2 between the second axis 212 and the front wall 121 can be 23mm, 25mm, 27mm, 29mm, or 31mm.

[0090] See also Figure 4 In some embodiments, the distance between the first inflection point 221a and the side wall 123 is greater than the distance between the second endpoint 221c and the side wall 123, and less than the distance between the first endpoint 221b and the side wall 123; the distance between the second inflection point 222a and the side wall 123 is greater than the distance between the fourth endpoint 222c and the side wall 123, and less than the distance between the third endpoint 222b and the side wall 123.

[0091] It can be understood that, in the process of the first axis 211 moving from the first endpoint 221b to the second endpoint 221c via the first inflection point 221a, the first axis 211 moves toward or away from the front wall 121 while the first axis 211 moves toward the direction close to the side wall 123, so that the door body 120 moves away from the box body 110, avoiding interference between the door body 120 and the box body 110 during the door opening process; in the process of the second axis 212 moving from the third endpoint 222b to the fourth endpoint 222c via the second inflection point 222a, the second axis 212 moves toward or away from the front wall 121 while the second axis 212 moves toward the direction close to the side wall 123, so that the door body 120 moves away from the box body 110, reducing the intrusion amount of the door body 120 and avoiding interference between the door body 120 and the box body 110 during the door opening process.

[0092] See also Figure 5In some embodiments, when the first axis 211 is located at the first end point 221b, that is, when the door body 120 is in the closed state, the angle Z1 between the axis line L1 connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 is less than or equal to 35°. The angle Z1 between the axis line L1 connecting the centers of the first axis 211 and the second axis 212 and the front wall 121 represents the distance between the first axis 211 and the second axis 212 in the thickness direction of the door body 120. The smaller 1 is, the closer the distance between the first axis 211 and the second axis 212 in the thickness direction of the door body 120 is when the first axis 211 is located at the first end point 221b. Compared with the case where the first axis 211 and the second axis 212 are located in the middle position in the thickness direction of the door body 120, the distance between the first axis 211 and the second axis 212 and the front wall 121 is closer, so that the first axis 211 and the second axis 212 have more room to move during the door opening process, and the thickness M of the door body 120 can be reduced when the hinge assembly 200 is arranged with the same door opening angle.

[0093] Because the motion trajectories of the first shaft 211 and the second shaft 212 in the embodiment of the present application are relatively compact, and because the first shaft 211 slides in the first groove 221 and the second shaft 212 slides in the second groove 222, the arrangement of the first groove 221 and the second groove 222 is also relatively compact. This means that the movement space of the first shaft 211 and the second shaft 212 in the thickness direction of the door body 120 and the arrangement space of the first groove 221 and the second groove 222 in the thickness direction of the door body 120 are both relatively small. This allows the door body 120 to be thinner, thereby improving aesthetics and saving space. Specifically, when the door body 120 is in the closed state, the angle Z1 between the line L1 connecting the axis centers of the first shaft 211 and the second shaft 212 and the front wall 121 can be 150°, 155°, or 160°.

[0094] See also Figure 9 In some embodiments, when the door body 120 is located at 90 degrees, the distance between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 120 is 7 mm to 19 mm.

[0095] 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 120 when the door body 120 is at a 90° angle, the spacing between the first shaft 211 and the second shaft 212 is constrained, making the layout of the first shaft 211 and the second shaft 212 compact, reducing the occupied space, and thus reducing the thickness M of the door body 120. Specifically, when the door body 120 is at a 90° angle, 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 120 can be 8 mm, 10 mm, 12 mm, 14 mm, or 16 mm.

[0096] See also Figure 9 In some embodiments, when the door body 120 is at 90°, the distance between the door body 120 and the box body 110 is 20 mm to 30 mm. When the door body 120 is at 90°, the side wall 123 is arranged parallel to the opening of the box body 110, so the distance between the door body 120 and the box body 110 represents the vertical distance between the side wall 123 and the plane where the opening of the box body 110 is located. Since the door body 120 and the box body 110 are connected by the sliding fit between the first axis 211 and the first groove 221, and the second axis 212 and the second groove 222, that is, a dynamic connection, if the distance between the door body 120 and the box body 110 is too far, it will cause the connection between the door body 120 and the box body 110 to be unstable. Therefore, the distance between the door body 120 and the box body 110 is limited to make the connection more stable. Specifically, when the door body 120 is located at 90°, the distance between the door body 120 and the box body 110 can be 21 mm, 23 mm, 25 mm, 27 mm, or 29 mm.

[0097] See also Figure 11 In some embodiments, when the relative angle between the door body 120 and the box body 110 is the largest, the distance A4 between the first axis 211 and the front wall 121 is 7 mm to 17 mm, and the distance B4 between the first axis 211 and the side wall 123 is 4.5 mm to 14.5 mm. The distance C4 between the second axis 212 and the front wall 121 is 21 mm to 31 mm, and the distance D4 between the second axis 212 and the side wall 123 is 4 mm to 14 mm.

[0098] When the door body 120 rotates to the maximum angle, the distance between the first axis 211 and the second axis 212 and the front wall 121 and the side wall 123 is still small, that is, the movement trajectory of the first axis 211 and the second axis 212 is relatively compact. Since the first axis 211 slides in the first groove 221 and the second axis 212 slides in the second groove 222, the arrangement of the first groove 221 and the second groove 222 is also relatively compact, thereby reducing the space occupied by the hinge assembly 200, and thus making the thickness M of the door body 120 thinner, meeting the ultra-thin door requirements of refrigeration equipment.

[0099] Specifically, the maximum angle of the door 120 relative to the box body 110 can be greater than or equal to 100°, thereby allowing the door 120 to open wider and making it easier for users to access items. Furthermore, the distance A4 between the first axis 211 and the front wall 121 can be 8 mm, 10 mm, 12 mm, 14 mm, or 16 mm; the distance B4 between the first axis 211 and the side wall 123 can be 5.5 mm, 7.5 mm, 9.5 mm, 11.5 mm, or 13.5 mm; the distance C4 between the second axis 212 and the front wall 121 can be 22 mm, 24 mm, 26 mm, 28 mm, or 30 mm; and the distance D4 between the second axis 212 and the front wall 121 can be 23 mm, 25 mm, 27 mm, 29 mm, or 30 mm.

[0100] See also Figure 11 In some embodiments, when the relative angle between the door body 120 and the box body 110 is the largest, the distance between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 120 is 8 mm to 20 mm.

[0101] When the relative angle between the door body 120 and the housing 110 is at its maximum, the distance between the axis centers of the first shaft 211 and the second shaft 212 in the thickness direction of the door body 120 is relatively short, that is, the motion trajectories of the first shaft 211 and the second shaft 212 are relatively compact, and the distance between the first shaft 211 and the second shaft 212 is always relatively short. Since the first shaft 211 slides in the first groove 221 and the second shaft 212 slides in the second groove 222, the arrangement of the first groove 221 and the second groove 222 is also relatively compact. Therefore, while ensuring the rotation angle of the door body 120, the thickness M of the door body 120 can be made thinner, thereby improving the aesthetics and saving space. Specifically, the distance between the axis centers of the first shaft 211 and the second shaft 212 in the thickness direction of the door body 120 can be 9 mm, 11 mm, 13 mm, 5 mm, or 17 mm.

[0102] In some embodiments, during the process of the first shaft 211 sliding from the first endpoint 221b to the second endpoint 221c, the angle Z2 between the tangent L2 of the movement trajectory of the first shaft 211 relative to the first groove 221 and the front wall 121 is less than or equal to 50°, so that the first shaft 211 continues to approach the side wall 123 and away from the front wall 121 during the process of sliding from the first endpoint 221b to the second endpoint 221c. Therefore, the door body 120 can keep moving away from the box body 110 and away from the pivot side during this process to ensure that the door body 120 will not cause squeezing to the box body 110 and the cabinet body 130.

[0103] In some embodiments, during the process of the second shaft 212 sliding from the third endpoint 222b to the fourth endpoint 222c, the angle Z3 between the tangent L3 of the movement trajectory of the second shaft 212 relative to the second groove 222 and the front wall 121 is less than or equal to 75°, so that the second shaft 212 continues to approach the side wall 123 and away from the front wall 121 during the process of sliding from the third endpoint 222b to the fourth endpoint 222c. Therefore, the door body 120 can keep moving away from the box body 110 and away from the pivot side during this process to ensure that the door body 120 will not cause squeezing to the box body 110 and the cabinet body 130.

[0104] Specifically, in the process of the first axis 211 sliding from the first end point 221b to the second end point 221c, that is, in the process of opening the door body 120, the angle Z2 between the tangent L2 of the first axis 211 relative to the moving direction of the first groove 221 and the front wall 121 can be 25°, 35°, or 45°, and the angle Z3 between the tangent L3 of the second axis 212 relative to the moving direction of the second groove 222 and the front wall 121 can be 50°, 60°, or 70°.

[0105] In some embodiments, during the process of the first shaft 211 sliding from the first endpoint 221b to the second endpoint 221c, the angle Z4 between the tangent L2 of the first shaft 211 relative to the motion trajectory of the first groove 221 and the tangent L3 of the second shaft 212 relative to the motion trajectory of the second groove 222 is less than or equal to 50° and greater than or equal to 15°.

[0106] It is understood that by setting the angle Z4 between the active tangent line L2 of the first shaft 211 and the active tangent line L3 of the second shaft 212 to be smaller, the motion trajectories of the first shaft 211 and the second shaft 212 can be made more compact, thereby reducing the space occupied in the thickness direction of the door body 120. This allows the hinge assembly 200 capable of achieving a large-angle door opening to be arranged on an ultra-thin door body 120, thereby reducing the thickness of the door body 120. Specifically, when the door body 120 is opened from a closed state, the angle Z4 between the tangent line L2 of the first shaft 211 relative to the active direction of the first slot 221 and the tangent line L3 of the second shaft 212 relative to the active direction of the second slot 222 can be 20°, 25°, 30°, 35°, or 45°.

[0107] In some embodiments, when the first edge 124 is located at the first position, the distance that the first edge 124 extends beyond the side surface of the box body 110 is less than or equal to 1 mm.

[0108] It is understood that the side surface of the box body 110 is the surface of the box body 110 on the side close to the cabinet body 130. When the door body 120 is in the closed state, the side wall 123 can be flush with the side surface of the box body 110, that is, the first edge 124 is aligned with the side surface of the box body 110. When the door body 120 is opened from the closed state, the first edge 124 will move toward the left relative to the box body 110, and when the door body 120 is opened to a certain angle, it will extend outward beyond the side surface of the box body 110, thereby posing a risk of interference with the cabinet body 130.

[0109] See also Figure 7 When the first edge 124 is in the first position, the distance between the first edge 124 and the cabinet 130 is minimized. That is, when the first edge 124 is at its furthest point from the side of the cabinet 110, to prevent contact between the first edge 124 and the cabinet 130, the distance between the first edge 124 and the side of the cabinet 110 is limited to less than or equal to 1 mm when the first edge 124 is in the first position. That is, the maximum amount of excess of the first edge 124 is less than or equal to 1 mm. As a result, as long as the distance between the refrigeration unit and the cabinet 130 is greater than 1 mm, the door 120 can be opened smoothly, meeting the requirements of embedded installation. F in the figure represents the excess of the door 120 when the first edge 124 is in the first position.

[0110] Specifically, when the first edge 124 is at the first position, the distance between the first edge 124 and the side of the box body 110 can be 0.1mm, 0.3mm, 0.5mm, 0.7mm, 0.9mm or other values ​​less than 1mm, which are not specifically limited here.

[0111] See also Figure 7 In some embodiments, when the first edge 124 is located at the first position, the distance between the first edge 124 and the cabinet 130 is greater than or equal to 3 mm.

[0112] When the first edge 124 is in the first position, the distance between the first edge 124 and the cabinet 130 is minimized. By limiting the distance between the first edge 124 and the cabinet 130, even when the first edge 124 extends the farthest from the side of the box body 110, it is unlikely to interfere with the cabinet 130. Specifically, when the first edge 124 is in the first position, the distance between the first edge 124 and the cabinet 130 can be 3 mm, 3.5 mm, or 4 mm.

[0113] See also Figure 7 In some embodiments, when the first edge 124 is located at the first position, the distance between the axis center of the first axis 211 and the axis center of the second axis 212 in the thickness direction of the door body 120 is less than 12 mm.

[0114] When the door body 120 rotates to the point where the first edge 124 is in the first position, the distance between the axis of the first shaft 211 and the axis of the second shaft 212 in the thickness direction of the door body 120 is relatively short. This means that the motion trajectories of the first shaft 211 and the second shaft 212 are relatively compact, and the distance between the first shaft 211 and the second shaft 212 is always relatively short. Since the first shaft 211 slides in the first groove 221 and the second shaft 212 slides in the second groove 222, the arrangement of the first groove 221 and the second groove 222 is also relatively compact. This allows the thickness M of the door body 120 to be thinner while ensuring the rotation angle of the door body 120, thus meeting the requirements for ultra-thin doors for refrigeration equipment. Specifically, the distance between the axis of the first shaft 211 and the axis of the second shaft 212 in the thickness direction of the door body 120 can be 4 mm, 5 mm, 7 mm, 9 mm, or 11 mm.

[0115] In some embodiments, when the first edge 124 is located at the first position, the angle Z5 between the line L3 connecting the axis of the first axis 211 and the axis of the second axis 212 and the front wall 121 is less than 35°.

[0116] The angle Z5 between the axis line L3 of the first axis 211 and the second axis 212 and the front wall 121 represents the distance between the first axis 211 and the second axis 212 in the thickness direction of the door body 120. The smaller the angle Z5 between the axis line L3 of the first axis 211 and the second axis 212 and the front wall 121, the closer the distance between the first axis 211 and the second axis 212 in the thickness direction of the door body 120 is when the first axis 211 is located at the first end point 221b. Compared with the case where the first axis 211 and the second axis 212 are located in the middle position in the thickness direction of the door body 120, the closer the distance between the first axis 211 and the second axis 212 and the front wall 121 is, so that the first axis 211 and the second axis 212 have more room to move during the door opening process, and the thickness M of the door body 120 can be reduced when the hinge assembly 200 is arranged with the same door opening angle. Specifically, when the first edge 124 is located at the first position, the angle Z5 between the line L3 connecting the axes of the first axis 211 and the second axis 212 and the front wall 121 can be 30°, 32°, or 34°.

[0117] See also Figure 7 In some embodiments, the rear wall 122 and the side wall 123 intersect at the second edge 125 . When the first edge 124 is at the first position, the distance between the second edge 125 and the box body 110 is greater than 10 mm.

[0118] It is understood that when the door 120 rotates to the point where the first edge 124 is in the first position, the second edge 125 moves away from the cabinet 130 while also moving closer to the cabinet 110. By limiting the distance between the second edge 125 and the cabinet 110 when the first edge 124 is in the first position, interference between the second edge 125 and the cabinet 110 can be avoided to a certain extent. Specifically, when the first edge 124 is in the first position, the distance between the second edge 125 and the cabinet 110 can be 11 mm, 12 mm, 13 mm, 14 mm, or 15 mm.

[0119] In some embodiments, when the door body 120 is at 90°, the distance between the first axis 211 and the front wall 121 is 12mm~22mm, and the distance between the first axis 211 and the side wall 123 is 7mm~17mm; the distance between the second axis 212 and the front wall 121 is 25mm~35mm, and the distance between the second axis 212 and the side wall 123 is 13mm~23mm.

[0120] When the door body 120 is at 90°, the distance between the first axis 211 and the front wall 121, and the distance between the second axis 212 and the front wall 121 are limited to smaller values, which is beneficial to reducing the moving distance of the first axis 211 and the second axis 212 in the thickness direction of the door body 120 during the process of rotating the door body 120 from the closed state to the 90° position, which is beneficial to meeting the design requirements of ultra-thin doors.

[0121] Specifically, when the door body 120 is at 90°, the distance between the first axis 211 and the front wall 121 can be 13mm, 15mm, 17mm, 19mm, 21mm, and the distance between the first axis 211 and the side wall 123 can be 8mm, 10mm, 12mm, 14mm, 16mm; the distance between the second axis 212 and the front wall 121 can be 26mm, 28mm, 30mm, 32mm, 34mm, and the distance between the second axis 212 and the side wall 123 can be 14mm, 16mm, 18mm, 20mm, 22mm.

[0122] In some embodiments, as the door body 120 opens from a closed state to a first angle relative to the box body 110, the intrusion amount of the door body 120 gradually increases; as the door body 120 rotates from a first angle to a second angle relative to the box body 110, the intrusion amount of the door body 120 gradually decreases.

[0123] Since the door body 120 in the embodiment of the present application rotates, the second edge 125 located at the junction of the rear wall 122 and the side wall 123 of the door body 120 will first move toward the side away from the box body 110, so that the door body 120 invades from the pivot side to the opening side of the box body 110. In the process of the door body 120 opening from the closed state relative to the box body 110 to the first angle, the invasion amount of the door body 120 gradually increases, and the first axis 211 and the second axis 212 move relative to the door body 120 toward the side away from the front wall 12 1 and moves in the direction close to the side wall 123, reducing the intrusion amount of the door body 120 toward the box body 110; after the door body 120 rotates to the first angle, the second edge 125 located at the junction of the rear wall 122 and the side wall 123 of the door body 120 has no possibility of interfering with the box body 110, and the door body 120 does not need to move toward the box body 110 to avoid it. The first axis 211 and the second axis 212 move in the direction close to the front wall 121 and the side wall 123, so that the intrusion amount of the door body 120 is gradually reduced.

[0124] When the door body 120 is opened and closed, due to the elasticity of the door seal 140, the door body 120 may slightly squeeze the door seal 140, forming a negative closing angle of -1° to -5°. Under the negative closing angle, the door body 120 is better sealed with the opening. Therefore, the state in which the door body 120 is in the closed state described in this article can refer to the state where the relative angle between the door body 120 and the box body 110 is 0°, or the state where the door body 120 has a negative closing angle. There is a gap between the door body 120 and the side wall 123. In the process of the door body 120 opening from the closed state to 10°, the instantaneous center of the first axis 211 and the second axis 212 is outside the plane where the side of the door seal 140 is located.

[0125] That is, the instantaneous centers of the first and second axes 211, 212 can also be located outside the plane of the side edges of the door seal 140. As long as the distance between the instantaneous centers of the first and second axes 211, 212 and the plane of the side edges of the door seal 140 is kept small, the risk of the door seal 140 twisting can be reduced. Specifically, the distance between the instantaneous centers of the first and second axes 211, 212 and the plane of the side walls 123 of the door seal 140 can be less than 10 mm. The distance between the instantaneous centers of the first and second axes 211, 212 and the plane of the side walls 123 of the door seal 140 can be 1 mm, 3 mm, 5 mm, 7 mm, or 9 mm.

[0126] In some embodiments, the refrigeration device may be at least one of a refrigerator, a freezer, an oven, and a microwave oven.

[0127] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0128] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0129] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A refrigeration device, characterized in that: include: A box body and a door body, wherein the door body comprises side walls and a front wall; The hinge assembly comprises a first hinge member and a second hinge member, the first hinge member is provided with a first shaft and a second shaft, the second hinge member comprises a first slot and a second slot, the first shaft and the second shaft are fixed to the box body, and the second hinge member is installed on the door body; the first slot comprises a first inflection point, a first endpoint and a second endpoint; the first inflection point is located between the first endpoint and the second endpoint and is located on a side of the first slot away from the front wall; the second slot comprises a second inflection point, a third endpoint and a fourth endpoint, the second inflection point is located between the third endpoint and the fourth endpoint and is located on a side of the second slot away from the front wall; the first shaft slides in the first slot, and the second shaft slides in the second slot so that the door body rotates relative to the box body; When the door body is opened from a closed state to a maximum angle, the first shaft slides in the first groove, and the second shaft slides in the second groove; The first groove includes a first groove segment and a second groove segment connected in sequence, both of which are arc-shaped. The second groove includes a fourth groove segment and a fifth groove segment connected in sequence, the fourth groove segment is arc-shaped, and the fifth groove segment is elliptical. When the first shaft slides in the first groove segment, the second shaft slides in the fourth groove segment; when the first shaft slides in the second groove segment, the second shaft slides in the fifth groove segment. When the relative angle between the door body and the box body is 90°, the distance between the axis center of the first axis and the front wall is 12 to 22 mm, the distance between the axis center of the first axis and the side wall is 7 to 17 mm, the distance between the axis center of the second axis and the front wall is 25 to 35 mm, and the distance between the axis center of the second axis and the side wall is 13 to 23 mm.

2. The refrigeration equipment according to claim 1, characterized in that The first slot also includes a third slot segment connected to the second slot segment, and the third slot segment is arc-shaped; the second slot also includes a sixth slot segment and a seventh slot segment connected in sequence, the sixth slot segment is connected to the fifth slot segment, the sixth slot segment is straight, and the seventh slot segment is arc-shaped; wherein, when the first shaft slides in the third slot segment, the second shaft slides in the sixth slot segment, and when the first shaft rotates around a fixed axis in the third slot segment, the second shaft rotates around the first axis in the seventh slot segment.

3. The refrigeration equipment according to claim 2, characterized in that When the door body rotates from the closed state to the first angle relative to the box body, the first shaft slides in the first slot section, so that the first shaft slides from the first end point toward the first inflection point and makes an arc motion relative to the first slot, and the second shaft slides in the fourth slot section, so that the second shaft slides from the third end point toward the second inflection point and makes an arc motion relative to the second slot; During the process of the door body rotating from the first angle to the second angle relative to the box body, the first shaft slides in the second slot segment, so that the first shaft slides toward the second end point through the first inflection point and makes a circular motion relative to the first slot, and the second shaft slides in the fifth slot segment, so that the second shaft slides toward the second inflection point and makes an elliptical motion relative to the second slot; During the process of the door body rotating from the second angle to the third angle relative to the box body, the first shaft slides in the third slot section, so that the first shaft slides toward the second end point and performs circular motion relative to the first slot, and the second shaft slides in the sixth slot section, so that the second shaft passes through the second inflection point toward the fourth end point and performs linear motion relative to the second slot; During the process of the door body rotating from the third angle to the maximum angle relative to the box body, the first shaft rotates in the third slot section and is located at the second end point, and the second shaft rotates around the first shaft in the seventh slot section; The first angle is smaller than the second angle, and the second angle is smaller than the third angle.

4. The refrigeration equipment according to claim 1, characterized in that The first groove also includes a third groove segment connected to the second groove segment, and the third groove segment is arc-shaped; the second groove also includes a sixth groove segment connected to the fifth groove, and the sixth groove segment is straight-line; wherein, when the first shaft slides in the third groove segment, the second shaft slides in the sixth groove segment.

5. A refrigeration device according to any one of claims 1 to 4, characterized in that: The distance between the first inflection point and the side wall is greater than the distance between the second endpoint and the side wall, and less than the distance between the first endpoint and the side wall; the distance between the second inflection point and the side wall is greater than the distance between the fourth endpoint and the side wall, and less than the distance between the third endpoint and the side wall.

6. A refrigeration device according to any one of claims 1 to 4, characterized in that: When the first axis is located at the first end point, the minimum angle between the line connecting the axes of the first axis and the second axis and the front wall is less than or equal to 35°.

7. A refrigeration device according to any one of claims 1 to 4, characterized in that: During the process of the first shaft sliding from the first end point to the second end point, an angle between a tangent line of the first shaft moving relative to the first slot and the front wall is less than or equal to 50°.

8. A refrigeration device according to any one of claims 1 to 4, characterized in that: During the process of the second shaft sliding from the third end point to the fourth end point, an angle between a tangent line of the second shaft moving relative to the second groove and the front wall is less than or equal to 75°.

9. A refrigeration device according to any one of claims 1 to 4, characterized in that: During the process of the first shaft sliding from the first end point to the second end point, the angle between the tangent of the first shaft relative to the first groove and the tangent of the second shaft relative to the second groove is less than or equal to 50° and greater than or equal to 15°.

10. The refrigeration equipment according to any one of claims 1 to 4, characterized in that: When the relative angle between the door body and the box body is 90°, the intrusion amount of the door body is the first intrusion amount. When the second axis is located at the fourth end point, the intrusion amount of the door body is the second intrusion amount, which is less than or equal to the first intrusion amount.

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