Refrigeration device

Abstract

A refrigeration device, comprising a main body (100), a door body (200), and a hinge assembly (300). In the process of the door body (200) opening from a closed state to the maximum angle, a first shaft (311) can slide relative to a first groove (321), wherein a first trajectory is formed as the first shaft (311) moves away from a front wall (210) and a second trajectory is formed as the first shaft moves close to the front wall (210); and a second shaft (312) can slide relative to a second groove (322), wherein a third trajectory is formed as the second shaft moves away from the front wall (210) and a fourth trajectory is formed as the second shaft (312) moves close to the front wall (210). When the door body (200) opens to 90°, the first shaft (311) is 10-20 mm away from the front wall (210) and 17-27 mm away from a side wall (220), and the second shaft (312) is 6-16 mm away from the front wall (210) and 30-40 mm away from the side wall (220). In the refrigeration device, the door body can open to a large angle without interfering with a cabinet body.

Description

Refrigeration appliance

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202422175191.7, filed on September 04, 2024, entitled “A refrigeration appliance”, which is incorporated by reference herein in its entirety. TECHNICAL FIELD

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

[0004] With the development of society and the gradual improvement of living quality, people's demand for the installation aesthetics of household refrigeration appliances is also increasingly prominent. Embedding the refrigeration appliance into the cabinet, i.e., forming an embedded refrigeration appliance to realize the homogenization of home decoration style has become popular. However, in the related art, the door body of the embedded refrigeration appliance is prone to interfere with the surrounding cabinet body when being opened, and it is difficult to achieve a large opening angle. SUMMARY

[0005] The present application aims to at least solve the technical problems in the related art to some extent. To this end, the present application provides a refrigeration appliance.

[0006] The refrigeration appliance provided by the embodiments of the present application comprises:

[0007] A main body and a door body, the door body is arranged at an opening of the main body, and the door body comprises a side wall and a front wall arranged at an included angle;

[0008] A hinge assembly comprising a first hinge member and a second hinge member, the first hinge member is installed on the main body, and the second hinge member is installed on the door body, a first shaft and a second shaft are fixedly arranged on the first hinge member, the second hinge member comprises a first slot and a second slot, the first shaft and the first slot are in sliding fit, and the second shaft and the second slot are in sliding fit;

[0009] During the process that the door body is opened from the closed state to the maximum angle, the first shaft can slide relative to the first slot, so that the first shaft moves away from the front wall to form a first trajectory, and moves close to the front wall to form a second trajectory; the second shaft can slide relative to the second slot, and moves away from the front wall to form a third trajectory, and moves close to the front wall to form a fourth trajectory;

[0010] In the case that the door body is opened to 90°, the distance between the first shaft and the front wall is 10mm-20mm, the distance between the first shaft and the side wall is 17mm-27mm, the distance between the second shaft and the front wall is 6mm-16mm, and the distance between the second shaft and the side wall is 30mm-40mm.

[0011] In the refrigeration equipment provided by the embodiments, in the process that the door body is opened from the closed state to the maximum angle, the first shaft and the second shaft first move away from the front wall and then move close to the front wall, that is, the movement track of the first shaft and the second shaft has a turning point, so that a longer movement track can be obtained under the condition that the thickness of the door body is constant, thereby realizing large-angle door opening.

[0012] In some embodiments, in the case that the door body is opened to 90°, the angle between the line connecting the centers of the first shaft and the second shaft and the front wall is less than 70°.

[0013] In some embodiments, in the process that the door body is opened from the closed state to 10°, the first shaft moves along the first track in an arc, and the second shaft moves along the third track in an arc.

[0014] In some embodiments, the door body is provided with a door seal matched with the opening, and a gap is formed between the door seal and the side wall of the door body. In the process that the door body is opened from the closed state to 10°, the instantaneous center of the first shaft and the second shaft is located on the plane in which the side edge of the door seal is located.

[0015] In some embodiments, the door body is provided with a door seal matched with the opening, and a gap is formed between the door seal and the side wall of the door body. In the process that the door body is opened from the closed state to 10°, the instantaneous center of the first shaft and the second shaft is located outside the plane in which the side edge of the door seal is located.

[0016] In some embodiments, in the process that the door body is opened from the closed state to 10°, the distance between the instantaneous center of the first shaft and the second shaft and the plane in which the side wall of the door seal is located is less than 10mm.

[0017] In some embodiments, in the process that the door body is opened from 10° to 90°, the first shaft first moves along the first track in an arc, then moves along the second track in an arc, and the second shaft moves along the third track in an ellipse.

[0018] In some embodiments, in the process that the door body is opened from 90° to 115°, the first shaft moves along the second track in an arc, and the second shaft moves along the fourth track in a straight line.

[0019] In some embodiments, the first shaft and the second shaft rotate in a pivot manner during the process that the door body is opened by 115° to a maximum angle.

[0020] In some embodiments, the thickness of the door body is 30mm-50mm.

[0021] In some embodiments, the refrigeration equipment is one of a refrigerator, a freezer, a wine cabinet, a cigar cabinet, and an ice maker. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Fig. 1 shows a structural schematic diagram of a refrigeration equipment.

[0024] Fig. 2 shows a structural schematic diagram of a refrigeration equipment.

[0025] Fig. 3 shows a partial enlarged view of A in Fig. 2.

[0026] Fig. 4 shows a structural schematic diagram of a hinge assembly.

[0027] Fig. 5 shows a structural schematic diagram of a first hinge piece in Fig. 4.

[0028] Fig. 6 shows a structural schematic diagram of a second hinge piece in Fig. 4.

[0029] Fig. 7 shows a structural schematic diagram when the relative angle between the door body and the main body is 90°.

[0030] Fig. 8 shows a partial enlarged view of D in Fig. 7.

[0031] Fig. 9 shows a partial enlarged view of D in Fig. 7.

[0032] Fig. 10 shows a structural schematic diagram when the relative angle between the door body and the main body is 90°.

[0033] Fig. 11 shows a structural schematic diagram when the door body is in a closed state.

[0034] Fig. 12 shows a partial enlarged view of B in Fig. 11.

[0035] Fig. 13 shows a partial enlarged view of B in Fig. 11.

[0036] Fig. 14 shows a structural schematic diagram when the relative angle between the door body and the main body is 45°.

[0037] Fig. 15 shows a partial enlarged view I of C in Fig. 14.

[0038] Fig. 16 shows a partial enlarged view II of C in Fig. 14.

[0039] Fig. 17 shows a partial enlarged view III of C in Fig. 14.

[0040] Fig. 18 shows a partial enlarged view IV of C in Fig. 14.

[0041] Fig. 19 shows a structural schematic view I when the relative angle between the door body and the main body is maximum.

[0042] Fig. 20 shows a partial enlarged view I of D in Fig. 19.

[0043] Fig. 21 shows a partial enlarged view II of D in Fig. 19.

[0044] Fig. 22 shows a partial enlarged view of Fig. 21.

[0045] Fig. 23 shows a structural schematic view II when the relative angle between the door body and the main body is maximum.

[0046] Reference signs: 10-refrigeration equipment, 100-main body, 110-containing cavity, 120-opening, 200-door body, 210-front wall, 220-side wall, 221-first edge, 222-second edge, 230-back wall, 240-door seal, 250-mounting groove, 300-hinge assembly, 310-first hinge piece, 311-first shaft, 312-second shaft, 313-first mounting piece, 313a-connection part, 313b-mounting part, 320-second hinge piece, 321-first groove, 321a-first end point, 321b-first inflection point, 321c-second end point, 322-second groove, 322a-third end point, 322b-second inflection point, 322c-fourth end point, 323-second mounting piece, 20-cabinet body. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship between the components in a certain posture. If the certain posture changes, the directional indications also change accordingly.

[0049] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In addition, the description involving "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection claimed in the present application.

[0051] Please refer to FIG. 1 and FIG. 2, the present application provides a refrigeration equipment 10, the refrigeration equipment 10 provided by the present application is embeddedly installed in the cabinet 20, the refrigeration equipment 10 provided by the present application can make the door body 200 realize large-angle opening without interfering with the cabinet 20.

[0052] Among them, the refrigeration equipment 10 can be a refrigerator, a wine cabinet, a cigar cabinet, an ice maker or any other refrigeration equipment 10 that can be embeddedly installed in the cabinet 20 and has a door body 200, which is not limited.

[0053] The refrigeration equipment 10 is generally a rectangular parallelepiped. In order to facilitate description, the height direction Z, the width direction X and the thickness direction Y are defined respectively. Among them, in the use state of the refrigeration equipment 10, the vertical direction is the height direction Z, and the projection of the refrigeration equipment 10 in the vertical direction is a rectangle, wherein the direction of the long side is the width direction X, and the direction of the wide side is the thickness direction Y.

[0054] Similarly, in order to facilitate description, six directions such as up, down, left, right, front and back are defined. Among them, in the height direction Z, the top is close to the top, and the bottom is close to the bottom. In the width direction X, the two directions are left and right respectively. In the thickness direction Y, the connection between the door body 200 and the main body 100 is the back, and the opposite side is the front.

[0055] Referring to FIGS. 1-6, in the embodiments of the present application, the refrigeration device 10 comprises a main body 100, a door body 200 and a hinge assembly 300. The door body 200 is arranged at the opening 120 of the main body 100, and the door body 200 comprises a front wall 210 and a side wall 220 arranged at an angle. The hinge assembly 300 comprises a first hinge piece 310 and a second hinge piece 320. The first hinge piece 310 is mounted on the main body 100, and the second hinge piece 320 is mounted on the door body 200. The first hinge piece 310 is fixedly provided with a first shaft 311 and a second shaft 312. The second hinge piece 320 comprises a first slot 321 and a second slot 322. The first shaft 311 is in sliding fit with the first slot 321, and the second shaft 312 is in sliding fit with the second slot 322.

[0056] During the process that the door body 200 is opened from the closed state to the maximum angle, the first shaft 311 can slide relative to the first slot 321, so that the first shaft 311 moves away from the front wall 210 to form a first trajectory and moves close to the front wall 210 to form a second trajectory. The second shaft 312 can slide relative to the second slot 322 and move away from the front wall 210 to form a third trajectory. The second shaft 312 moves close to the front wall 210 to form a fourth trajectory.

[0057] Referring to FIGS. 7 and 8, when the door body 200 is opened to 90°, the distance A2 between the first shaft 311 and the front wall 210 is 12mm-22mm, and the distance B2 between the first shaft 311 and the side wall 220 is 7mm-17mm. The distance C2 between the second shaft 312 and the front wall 210 is 25mm-35mm, and the distance D2 between the second shaft 312 and the side wall 220 is 13mm-23mm.

[0058] The main body 100 is a basic component of the refrigeration device 10 and can provide a mounting basis for other structures of the refrigeration device 10. The main body 100 has an opening 120 and a containing cavity 110 for containing articles. The opening 120 and the containing cavity 110 are in communication, and the door body 200 is mounted at the opening 120 of the main body 100 to seal the containing space of the main body 100 and provide a stable containing space for the articles.

[0059] The refrigeration equipment 10 is used for freezing or refrigerating articles, and the door body 200 needs to be opened when the articles need to be placed or taken. In order to be able to open the door body 200, a double-shaft double-groove hinge assembly 300 can be used, that is, the opening and closing of the door body 200 is realized by the shaft sliding in the groove. In order to ensure the stability of the door body 200 during opening or closing, the hinge assembly 300 is provided at least two, and the two hinge assemblies 300 are arranged on one side of the upper end and the lower end of the door body 200. The hinge assembly 300 can be arranged on the left side of the door body 200 or on the right side of the door body 200, and this is not limited. For the convenience of description, the hinge assembly 300 is arranged on the left side of the upper end of the door body 200 in the embodiment of the application, and the same can be used by analogy when the hinge assembly 300 is arranged on the lower end or the right side of the door body 200.

[0060] The first hinge part 310 and the second hinge part 320 are relatively rotated from the initial state to the positive direction, which corresponds to the state that the door body 200 is rotated from the closed state to the open state of the refrigeration equipment 10. The first hinge part 310 and the second hinge part 320 can also be relatively rotated in the reverse direction to return to the initial state, which corresponds to the state that the door body 200 is rotated from the open state to the closed state of the refrigeration equipment 10. For the convenience of understanding and description, in the subsequent description of the movement of the shaft in the groove, the relative positive rotation of the first hinge part 310 and the second hinge part 320 is taken as the standard, that is, the relative positive rotation of the door body 200 from the closed state to the open state, and the subsequent description will not be repeated.

[0061] It should be noted that since the refrigeration equipment 10 is embeddedly installed in the cabinet 20, the left and right sides of the refrigeration equipment 10 are both provided with the cabinet 20. Since the door body 200 can only interfere with one side of the cabinet 20 during opening, the cabinet 20 in this paper refers to the cabinet 20 close to the hinge assembly 300, that is, the cabinet 20 on the left side of the refrigeration equipment 10. The side wall 220 of the door body 200 in this paper refers to the side wall 220 on the left side of the door body 200, and the side of the main body 100 refers to the side on the left side of the main body 100.

[0062] During the opening or closing of the door body 200, the first shaft 311 slides in the first groove 321, and the second shaft 312 slides in the second groove 322, so as to constrain the track of the movement of the door body 200, so that the door body 200 has a tendency to move to the right, thereby improving the situation that the door body 200 collides with the cabinet 20 during movement.

[0063] As the first shaft 311 can slide relative to the first slot 321 during the process that the door body 200 is opened from the closed state to the maximum angle, the first shaft 311 moves away from the front wall 210 to form a first trajectory and moves close to the front wall 210 to form a second trajectory, i.e. the first shaft 311 first moves away from the front wall 210 and then moves close to the front wall 210, so the first trajectory and the second trajectory extend in different directions, and the movement trajectory of the first shaft 311 has a turning point. Similarly, as the second shaft 312 can slide relative to the second slot 322 and moves away from the front wall 210 to form a third trajectory and moves close to the front wall 210 to form a fourth trajectory, the third trajectory and the fourth trajectory extend in different directions, and the movement trajectory of the second shaft 312 also has a turning point. Of course, the first shaft 311 and the second shaft 312 also move close to the side wall 220 while first moving away from the front wall 210 and then moving close to the front wall 210.

[0064] It can be understood that the longer the movement trajectory of the first shaft 311 and the second shaft 312 is, the greater the opening angle of the door body 200 is. During the process that the door body 200 is opened from the closed state to the maximum angle, as the first shaft 311 and the second shaft 312 first move away from the front wall 210 and then move close to the front wall 210, i.e. the movement trajectory of the first shaft 311 and the second shaft 312 has a turning point, under the condition that the thickness of the door body 200 is constant, compared with moving in one direction, the first shaft 311 and the second shaft 312 can have a longer movement trajectory in the case of having a turning point, so that a large-angle opening of the door body 200 can be realized.

[0065] In the case that the door body 200 is opened to 90°, the distance between the first shaft 311 and the front wall 210 and the distance between the second shaft 312 and the front wall 210 are limited to small values, which is beneficial to reduce the moving distance of the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 during the process that the door body 200 is rotated from the closed state to the relative angle of 90° with the main body 100, and is beneficial to meet the design requirements of the ultra-thin door; the distance between the first shaft 311 and the side wall 220 and the distance between the second shaft 312 and the side wall 220 are limited to small values, which facilitates the door body 200 to continue to be opened to the maximum angle without interfering with the drawer being pulled out; in addition, limiting the distance between the axis of the first shaft 311 and the front wall 210 is beneficial to reduce the moving distance of the door body 200 towards the main body 100 during the process that the door body 200 is rotated from the closed state to the relative angle of 90° with the main body 100, reduce the probability of the door body 200 pressing the main body 100, and facilitate the drawer inside the main body 100 to be pulled out.

[0066] Specifically, in the case that the door body 200 is opened to 90°, the distance A2 between the first shaft 311 and the front wall 210 can be 13mm, 15mm, 17mm, 19mm, 21mm, the distance B2 between the first shaft 311 and the side wall 220 can be 8mm, 10mm, 12mm, 14mm, 16mm, the distance C2 between the second shaft 312 and the front wall 210 can be 26mm, 28mm, 30mm, 32mm, 34mm, and the distance D2 between the second shaft 312 and the side wall 220 can be 14mm, 16mm, 18mm, 20mm, 22mm.

[0067] wherein the distance between the first shaft 311 and the front wall 210 represents the vertical distance between the axis of the first shaft 311 and the front wall 210, and the distance between the first shaft 311 and the side wall 220 represents the vertical distance between the axis of the first shaft 311 and the side wall 220. Similarly, the distance between the second shaft 312 and the front wall 210 represents the vertical distance between the axis of the second shaft 312 and the front wall 210, and the distance between the second shaft 312 and the side wall 220 represents the vertical distance between the axis of the first shaft 311 and the front wall 210.

[0068] In some embodiments, in the process that the door body 200 is opened from the closed state to the first angle, the first shaft 311 moves along the first trajectory and the second shaft 312 moves along the third trajectory, in the process that the door body 200 is opened from the first angle to the second angle, the first shaft 311 moves along the second trajectory and the second shaft 312 continues to move along the third trajectory, in the process that the door body 200 is opened from the second angle to the maximum angle, the first shaft 311 continues to move along the second trajectory and the second shaft 312 moves along the fourth trajectory, and the distance between the first shaft 311 and the second shaft 312 is unchanged.

[0069] By limiting the movement trajectories of the first shaft 311 and the second shaft 312, in the initial stage that the door body 200 is opened from the closed state to the first angle, the first shaft 311 and the second shaft 312 both move in the direction away from the front wall 210, so that the door body 200 has a tendency to move in the direction away from the main body 100, to avoid interference between the door body 200 and the main body 100; in the intermediate stage that the door body 200 is opened from the first angle to the second angle, the first shaft 311 changes the movement direction to move in the direction close to the front wall 210 along the second trajectory, and the second shaft 312 continues to move in the direction away from the front wall 210 along the third trajectory, by the movement of the first shaft 311 and the second shaft 312 in different directions relative to the front wall 210, to realize the rotation of the door body 200 relative to the main body 100 in a large angle range; in the final stage that the door body 200 is opened from the second angle to the maximum angle, the first shaft 311 and the second shaft 312 both move in the direction close to the front wall 210, to facilitate the large angle opening of the door body 200.

[0070] Specifically, the first angle can be 45°, the second angle can be 90°, and the maximum angle can be 120°.

[0071] Next, the overall trajectories of the first shaft 311 and the second shaft 312 are described in segments:

[0072] Referring to FIGS. 7 and 8, in some embodiments, during the process that the door body 200 is opened from the closed state to 10°, the first shaft 311 moves along the first trajectory in an arc motion, and the second shaft 312 moves along the third trajectory in an arc motion.

[0073] In the process that the door body 200 is opened from the closed state to 10°, the first shaft 311 does not move to the end of the first trajectory, and the second shaft 312 does not move to the end of the second trajectory.

[0074] The rotation centers of the trajectories of the first shaft 311 and the second shaft 312 are different, that is, the first shaft 311 and the second shaft 312 rotate in non-concentric circles, so that the trajectories of the first shaft 311 and the second shaft 312 are not parallel and have intersection points. In this way, the trajectories of the first shaft 311 and the second shaft 312 can be more compact, so that a smaller space can be occupied in the thickness direction of the door body 200, thereby reducing the thickness of the door body 200. The curvatures of the trajectories of the first shaft 311 and the second shaft 312 can be the same or different, which is not limited.

[0075] In some embodiments, the door body 200 is provided with a door seal 240 cooperating with the opening 120, and the door seal 240 has a gap with the side wall 220 of the door body 200. During the process that the door body 200 is opened from the closed state to 10°, the instantaneous center of the first shaft 311 and the second shaft 312 is located in the plane in which the side edge of the door seal 240 is located.

[0076] In the tangents of the trajectories of the first shaft 311 and the second shaft 312, two perpendicular lines are drawn, and the intersection point of the two perpendicular lines is the instantaneous center. The door seal 240 is a sealing strip, which is used to prevent air, moisture, dust and other impurities from entering the containing cavity 110 through the door gap, and to improve the sealing performance of the containing cavity 110. The side edge of the door seal 240 refers to the side edge on the left side of the door seal 240, and the plane in which the side edge of the door seal 240 is located is the YZ plane of the side edge.

[0077] In the process that the door body 200 is opened from the closed state to 10°, under the rotating action of the door body 200, the door body 200 moves away from the cabinet body 20 and also invades the door seal 240. Since the door seal 240 is elastic, the door body 200 will extrude the door seal 240. If the instantaneous center of the first shaft 311 and the second shaft 312 is too far from the plane where the side edge of the door seal 240 is located, the invasion amount will be too large, and the side edge of the door seal 240 will be twisted. Therefore, the instantaneous center of the first shaft 311 and the second shaft 312 is located on the plane where the side edge of the door seal 240 is located, so that the invasion amount of the door body 200 to the door seal 240 is 1mm, and the risk of the side edge of the door seal 240 being twisted is reduced.

[0078] In some embodiments, the door body 200 is provided with a door seal 240 matched with the opening 120, and the door seal 240 has a gap with the side wall 220 of the door body 200. In the process that the door body 200 is opened from the closed state to 10°, the instantaneous center of the first shaft 311 and the second shaft 312 is located outside the plane where the side edge of the door seal 240 is located.

[0079] That is, the instantaneous center of the first shaft 311 and the second shaft 312 can also be located outside the plane where the side edge of the door seal 240 is located, as long as the distance between the instantaneous center of the first shaft 311 and the second shaft 312 and the plane where the side edge of the door seal 240 is located is small, so that the risk of the side edge of the door seal 240 being twisted is reduced. Specifically, the distance between the instantaneous center of the first shaft 311 and the second shaft 312 and the plane where the side wall 220 of the door seal 240 is located can be less than 10mm.

[0080] The distance between the instantaneous center of the first shaft 311 and the second shaft 312 and the plane where the side wall 220 of the door seal 240 is located can be 1mm, 3mm, 5mm, 7mm, or 9mm.

[0081] In some embodiments, in the process that the door body 200 is opened from 10° to 90°, the first shaft 311 first moves along a first trajectory in a circular arc, then moves along a second trajectory in a circular arc, and the second shaft 312 moves along a third trajectory in an elliptical motion.

[0082] The elliptical motion means that the third trajectory is divided into two segments, one of which is a circular arc and the other of which is a partial elliptical shape, and the curvatures of the two segments are different.

[0083] In the process of opening the door body 200 from 10° to 90°, the first shaft 311 has moved to the end of the first track and changes the direction of movement to enter the second track to make circular motion, while the second shaft 312 continues to make elliptical motion along the third track, so that the first shaft 311 passes the turning point before the second shaft 312. In the process of turning, the displacement of the first shaft 311 relative to the first groove 321 is very small. At this time, if the second shaft 312 is also located at the second inflection point 322b, it is easy to cause the phenomenon of being stuck, resulting in the failure of the door body 200 to rotate relative to the main body 100, causing the door opening to fail. When the first shaft 311 moves to the turning point, the second shaft 312 moves away from the front wall 210 along the third track, so that the door body 200 can still move away from the pivot side when the direction of movement is changed, improving the flexibility of the door body 200 rotation and avoiding the impact on the cabinet 20 during the door opening process.

[0084] In some embodiments, in the process of opening the door body 200 from 90° to 115°, the first shaft 311 makes circular motion along the second track, and the second shaft 312 makes linear motion along the fourth track.

[0085] That is, in the process of opening the door body 200 from 90° to 115°, the second shaft 312 has passed the end of the third track and changes the direction of movement to enter the fourth track to make linear motion. In the process of turning, the displacement of the second shaft 312 relative to the second groove 322 is very small. At this time, if the first shaft 311 is also located at the turning point, it is easy to cause the phenomenon of being stuck, resulting in the failure of the door body 200 to rotate relative to the main body 100, causing the door opening to fail. When the second shaft 312 moves to the turning point, the first shaft 311 moves along the second track to approach the front wall 210, so that the door body 200 can still move away from the pivot side when the direction of movement is changed, improving the flexibility of the door body 200 rotation and avoiding the impact on the cabinet 20 during the door opening process.

[0086] In some embodiments, in the process of opening the door body 200 from 115° to the maximum angle, the first shaft 311 and the second shaft 312 rotate around the fixed point.

[0087] Wherein, the fixed-point rotation means that the first shaft 311 and the second shaft 312 rotate around the fixed point without further movement. The maximum opening angle of the door body 200 can be greater than or equal to 100°. That is, in the process of opening the door body 200 from 115° to the maximum angle, the first shaft 311 and the second shaft 312 no longer continue to move, the first shaft 311 rotates around the fixed point at the end of the second track, and the second shaft 312 rotates around the fixed point at the end of the fourth track.

[0088] Specifically, the maximum opening angle of the door body 200 can be 120°.

[0089] In some embodiments, the inward displacement L4 of the door body 200 is less than or equal to 2 mm when the door body 200 is opened to 90°.

[0090] Since the door body 200 in the embodiment of the present application moves away from the cabinet body 20 before rotating, the door body 200 invades the main body 100 in the X direction, and the X-direction distance between the rightmost point of the projection of the door body 200 on the main body 100 and the side surface of the main body 100 is the invasion amount. In other words, the X-direction distance between the rightmost point of the projection of the door body 200 on the main body 100 and the side surface of the main body 100 is the invasion amount. Since the rotation of the door body 200 is a dynamic change process, the rightmost point of the projection of the door body 200 on the main body 100 is different at different rotation angles, and thus the invasion amount is different.

[0091] The accommodation cavity 110 of the main body 100 is provided with a drawer for storing articles. When a user takes an article, the drawer needs to be pulled out. Therefore, in order to avoid interference between the drawer and the door body 200, the drawer can only be arranged in the space of the main body 100 which is not invaded by the door body 200. Since the width of the main body 100 is a fixed value, the greater the invasion amount is, the smaller the width of the drawer is, and thus the space for accommodating articles is smaller.

[0092] When the door body 200 is opened to 90°, the end surface of the door seal 240 away from the door body 200 is the rightmost point of the projection of the door body 200 on the main body 100, that is, the invasion amount of the door body 200 is the vertical distance between the end surface of the door seal 240 away from the door body 200 and the side surface of the main body 100.

[0093] The inward displacement of the door body 200 is the distance of the right movement of the door body 200. When the door body 200 is opened to 90°, the inward displacement is the distance between the front wall 210 and the side surface of the main body 100. The invasion amount is the sum of the inward displacement of the door body 200, the thickness of the door body 200 and the thickness of the door seal 240. Since the thicknesses of the door body 200 and the door seal 240 are fixed values, the embodiment of the present application limits the inward displacement L4 of the door body 200 to be less than or equal to 2 mm, so as to control the invasion amount of the door body 200 in a smaller range and improve the use experience.

[0094] Specifically, when the door body 200 is opened to 90°, the distance L4 between the front wall 210 and the side surface of the main body 100 can be 0.5 mm, 1 mm or 1.5 mm.

[0095] In some embodiments, the angle α2 between the line connecting the axis of the first shaft 311 and the axis of the second shaft 312 and the front wall 210 is less than 70° when the door body 200 is opened to 90°.

[0096] The angle between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210 represents the distance between the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200. The smaller the angle between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210, the closer the distance between the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 when the first shaft 311 is located at the first end point 321a. Compared with the case where the first shaft 311 and the second shaft 312 are located at the middle position in the thickness direction of the door body 200, the distance between the first shaft 311 and the second shaft 312 and the front wall 210 is closer, so that the first shaft 311 and the second shaft 312 have more space for movement in the process of opening the door, and the thickness of the door body 200 can be reduced in the case of arranging the same opening angle of the hinge assembly 300.

[0097] Specifically, in the case where the door body 200 is opened to 90°, the angle a2 between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210 can be 50°, 55°, 60°, 65°, or 68°.

[0098] In some embodiments, in the case where the door body 200 is opened to 90°, the distance W2 between the axis centers of the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 is 7mm-19mm.

[0099] By limiting the distance between the axis centers of the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 when the relative angle between the door body 200 and the main body 100 is 90°, the distance between the first shaft 311 and the second shaft 312 is constrained, the layout of the first shaft 311 and the second shaft 312 is compact, the occupied space is reduced, and thus the thickness of the door body 200 is reduced.

[0100] Specifically, in the case where the door body 200 is opened to 90°, the distance W2 between the axis centers of the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 can be 8mm, 10mm, 12mm, 14mm, or 16mm.

[0101] In some embodiments, in the case where the door body 200 is opened to 90°, the distance L5 between the door body 200 and the main body 100 is 20mm-30mm

[0102] When the relative angle between the door body 200 and the main body 100 is 90°, the side wall 220 is arranged in parallel with the opening 120 of the main body 100, and thus the distance between the door body 200 and the main body 100 is the vertical distance between the side wall 220 and the plane on which the opening 120 of the main body 100 is located. Since the door body 200 and the main body 100 are connected through the sliding fit between the first shaft 311 and the first groove 321 and the second shaft 312 and the second groove 322, i.e., dynamic connection, if the distance between the door body 200 and the main body 100 is too far, the connection between the door body 200 and the main body 100 will be unstable, and thus the distance between the door body 200 and the main body 100 is limited to make the connection more stable.

[0103] Specifically, when the door body 200 is opened to 90°, the distance L5 between the door body 200 and the main body 100 can be 21 mm, 23 mm, 25 mm, 27 mm, or 29 mm.

[0104] In some embodiments, the intrusion amount H1 when the relative angle between the door body 200 and the main body 100 is 90° is greater than the intrusion amount H2 when the relative angle between the door body 200 and the main body 100 is maximum.

[0105] After the relative angle between the door body 200 and the main body 100 is greater than 90°, the second edge 222 continues to move to the right, and when the relative angle between the door body 200 and the main body 100 is maximum, the second edge 222 is the rightmost point of the projection of the door body 200 on the main body 100, and the X-direction distance between the second edge 222 and the side surface of the main body 100 is the intrusion amount; when the relative angle between the door body 200 and the main body 100 is 90°, the rear wall 230 is the rightmost point of the projection of the door body 200 on the main body 100, and the X-direction distance between the rear wall 230 and the side surface of the main body 100 is the intrusion amount.

[0106] The accommodation cavity 110 of the main body 100 is provided with a drawer for storing articles, and when the user takes out the articles, the drawer needs to be pulled out. Therefore, in order to avoid the interference between the drawer and the door body 200, the drawer can only be arranged in the space of the main body 100 which is not intruded by the door body 200. Since the width of the main body 100 is a fixed value, the greater the intrusion amount is, the smaller the width of the drawer is, and thus the space for accommodating articles is smaller. When the rotation angle of the door body 200 is in the range from 90° to the maximum angle, the user can completely pull out the drawer, and since H2 < H1, in order to make the width of the drawer wider, the width of the drawer is set based on the intrusion amount H2 when the relative angle between the door body 200 and the main body 100 is maximum, and the width of the main body 100 minus H2 is the width setting range of the drawer. When the articles need to be taken out, the door body 200 is opened to the maximum angle, and the drawer can be normally pulled out.

[0107] In some embodiments, the shape of the first groove 321 can be consistent with the movement trajectory of the first shaft 311, and the shape of the second groove 322 can be consistent with the movement trajectory of the second shaft 312, so that the first groove 321 and the second groove 322 can guide the movement of the first shaft 311 and the second shaft 312 respectively, so that the first shaft 311 and the second shaft 312 can move accurately according to the set trajectory, thereby improving the accuracy of the rotation of the door body 200.

[0108] Referring to FIG. 6, in some embodiments, the first groove 321 includes a first inflection point 321b, a first end point 321a and a second end point 321c, the first inflection point 321b is located between the first end point 321a and the second end point 321c and on the side of the first groove 321 away from the front wall 210; the second groove 322 includes a second inflection point 322b, a third end point 322a and a fourth end point 322c, the second inflection point 322b is located between the third end point 322a and the fourth end point 322c and on the side of the second groove 322 away from the front wall 210.

[0109] Wherein, in the process of the door body 200 from the closed state to the maximum opening angle, in the case that the first shaft 311 moves from the first end point 321a to the first inflection point 321b, the second shaft 312 moves from the third end point 322a to the second inflection point 322b; in the case that the first shaft 311 moves from the first inflection point 321b to the second end point 321c, the second shaft 312 slides towards the second inflection point 322b and then moves from the second inflection point 322b to the fourth end point 322c.

[0110] It can be understood that the first inflection point 321b corresponds to the turning point of the movement trajectory of the first shaft 311, and the second inflection point 322b corresponds to the turning point of the movement trajectory of the second shaft 312. Since the first shaft 311 slides in the first groove 321 and the second shaft 312 slides in the second groove 322, the stroke of the first shaft 311 is approximately equal to the length of the first groove 321, and the stroke of the second shaft 312 is approximately equal to the length of the second groove 322, that is, the longer the length of at least one of the first groove 321 and the second groove 322, the greater the opening angle of the door body 200.

[0111] Specifically, in the first groove 321, the groove segment between the first end point 321a and the first inflection point 321b is consistent with the first trajectory, and the groove segment between the first inflection point 321b and the first end point 321a is consistent with the second trajectory; in the second groove 322, the groove segment between the third end point 322a and the second inflection point 322b is consistent with the third trajectory, and the groove segment between the second inflection point 322b and the fourth end point 322c is consistent with the fourth trajectory.

[0112] In the process of opening the door body 200 from the closed state to the maximum angle, the first axis 311 moves from the first end point 321a to the second end point 321c through the first inflection point 321b, so that the first axis 311 moves away from the front wall 210 first and then moves close to the front wall 210; the second axis 312 moves from the third end point 322a to the fourth end point 322c through the second inflection point 322b, so that the second axis 312 moves away from the front wall 210 first and then moves close to the front wall 210, that is, in the process of opening the door, the trajectory of the first axis 311 at least partially overlaps in the thickness direction of the door body 200 (the first groove 321 at least partially overlaps in the thickness direction of the door body 200), and the trajectory of the second axis 312 also at least partially overlaps in the thickness direction of the door body 200 (the second groove 322 at least partially overlaps in the thickness direction of the door body 200). That is, in the case of the same trajectory length, the first groove 321 has the first inflection point 321b and the second groove 322 has the second inflection point 322b, so that the same trajectory length can occupy a smaller space in the thickness direction of the door body 200, the thickness of the door body 200 can be reduced, and large-angle opening can be realized in the case of an ultra-thin door.

[0113] Specifically, when the door body 200 is in the closed state, the first axis 311 is located at the first end point 321a, and the second axis 312 is located at the third end point 322a; when the door body 200 is opened to 45°, the first axis 311 is located at the first inflection point 321b, and the second axis 312 is located between the third end point 322a and the second inflection point 322b; when the door body 200 is opened to 90°, the first axis 311 is located between the first inflection point 321b and the second end point 321c, and the second axis 312 is located at the second inflection point 322b; when the door body 200 is opened to the maximum angle, the first axis 311 is located at the second end point 321c, and the second axis 312 is located at the fourth end point 322c.

[0114] In some embodiments, when the first axis 311 is located at the first inflection point 321b, the second axis 312 is offset from the second inflection point 322b; when the second axis 312 is located at the second inflection point 322b, the first axis 311 is offset from the first inflection point 321b.

[0115] It can be understood that the first axis 311 needs to change the movement direction when it is at the first inflection point 321b, and the second axis 312 needs to change the movement direction when it is at the second inflection point 322b. The displacement of the first axis 311 at the first inflection point 321b and the second axis 312 at the second inflection point 322b is small; if the first axis 311 is at the first inflection point 321b and the second axis 312 is at the second inflection point 322b at the same time, the first axis 311 and the second axis 312 change the movement direction at the same time, at this time, the relative displacement of the first axis 311 relative to the first groove 321 and the second axis 312 relative to the second groove 322 is small, which causes the amplitude of the rotation of the door body 200 relative to the main body 100 to be small, and is easy to cause the phenomenon of jamming.

[0116] In the case that the first shaft 311 is located at the first inflection point 321b, the second shaft 312 is offset from the second inflection point 322b, the first shaft 311 changes the direction of movement in the first groove 321 and the displacement of the first shaft 311 relative to the first groove 321 is small, the second shaft 312 is offset from the second inflection point 322b, the second shaft 312 can move between the third end point 322a and the second inflection point 322b, or the second shaft 312 can move between the fourth end point 322c and the second inflection point 322b; in the case that the second shaft 312 is located at the second inflection point 322b, the first shaft 311 is offset from the first inflection point 321b, the second shaft 312 changes the direction of movement in the second groove 322 and the displacement of the second shaft 312 relative to the second groove 322 is small, the first shaft 311 is offset from the first inflection point 321b, the first shaft 311 can move between the first end point 321a and the first inflection point 321b, or the first shaft 311 can move between the second end point 321c and the first inflection point 321b; in the case that one of the first shaft 311 and the second shaft 312 is located at the corresponding inflection point, the other is offset from the corresponding inflection point and makes a large displacement relative to the corresponding groove, so that the rotation between the first hinge piece 310 and the second hinge piece 320 is more flexible, and the door body 200 is smoothly opened without exceeding the side of the main body 100.

[0117] In some embodiments, in the case that the first shaft 311 is located at the first inflection point 321b, the first shaft 311 changes the direction of movement at the first inflection point 321b, and changes from moving from the first end point 321a to the first inflection point 321b to moving from the first inflection point 321b to the second end point 321c, and in this turning process, the displacement of the first shaft 311 relative to the first groove 321 is extremely small, and at this time, if the second shaft 312 is also located at the second inflection point 322b, the phenomenon of being stuck is easy to occur, which causes the door body 200 to be unable to rotate relative to the main body 100, resulting in failure to open the door; in the case that the first shaft 311 is located at the first inflection point 321b, the second shaft 312 moves from the third end point 322a to the second inflection point 322b, and the second shaft 312 moves away from the front wall 210, so that in the case that the first shaft 311 changes the direction of movement in the first groove 321, the door body 200 can still move away from the pivot side, improving the flexibility of the rotation of the door body 200 and avoiding the impact on the cabinet body 20 during the opening of the door.

[0118] In some embodiments, when the second shaft 312 is located at the second inflection point 322b, the second shaft 312 changes the direction of movement at the second inflection point 322b, from moving from the third end point 322a to the second inflection point 322b to moving from the second inflection point 322b to the fourth end point 322c, and in this transition, the displacement of the second shaft 312 relative to the second groove 322 is minimal. At this time, if the first shaft 311 is also located at the first inflection point 321b, it is easy to cause the phenomenon of being stuck, resulting in the door body 200 being unable to rotate relative to the main body 100, causing the door to fail to open. When the second shaft 312 is located at the second inflection point 322b, the first shaft 311 moves towards the second end point 321c, and the first shaft 311 is close to the front wall 210, so that when the second shaft 312 changes the direction of movement in the second groove 322, the door body 200 can still move away from the pivot side, improving the flexibility of the door body 200 rotation, and avoiding the cabinet 20 from being hit during the door opening process.

[0119] In some embodiments, during the process of rotating the door body 200 relative to the main body 100 to the maximum angle, after the first shaft 311 passes through the first inflection point 321b, the second shaft 312 passes through the second inflection point 322b, avoiding the first shaft 311 and the second shaft 312 being located at the inflection point at the same time, causing the door body 200 to be stuck or paused during the door opening process, making the door body 200 opening process more smooth, and improving the user's experience. The first shaft 311 is closer to the pivot side than the second shaft 312, so the first shaft 311 passes through the first inflection point 321b first, so that the first shaft 311 is no longer away from the front wall 210, and the second shaft 312 has not reached the second inflection point 322b, and the second shaft 312 continues to move away from the front wall 210, so that the door body 200 rotates a larger angle relative to the main body 100 during this process.

[0120] Please refer to FIGS. 7-9, in some embodiments, when the door body 200 is in a closed state, the distance A0 between the first shaft 311 and the front wall 210 is 10mm-20mm, the distance B0 between the first shaft 311 and the side wall 220 is 17mm-27mm, the distance C0 between the second shaft 312 and the front wall 210 is 6mm-16mm, and the distance D0 between the second shaft 312 and the side wall 220 is 30mm-40mm.

[0121] Since the distances between the first shaft 311 and the front wall 210, the first shaft 311 and the side wall 220, the second shaft 312 and the front wall 210, and the second shaft 312 and the side wall 220 are limited to small values in the closed state of the door body 200, i.e., the first shaft 311 and the second shaft 312 are arranged compactly, and since the first shaft 311 is slidingly fitted in the first groove 321 and the second shaft 312 is slidingly fitted in the second groove 322, the first groove 321 and the second groove 322 are also arranged compactly accordingly, thereby reducing the occupied space of the hinge assembly 300, making the thickness of the door body 200 thinner, and meeting the ultra-thin door requirement of the refrigeration equipment 10.

[0122] Specifically, the distance A0 between the first shaft 311 and the front wall 210 can be 14 mm, 16 mm, 18 mm, 20 mm, or 22 mm, the distance B0 between the first shaft 311 and the side wall 220 can be 10 mm, 12 mm, 14 mm, 16 mm, or 18 mm, the distance C0 between the second shaft 312 and the front wall 210 can be 20 mm, 22 mm, 24 mm, 26 mm, or 28 mm, and the distance D0 between the second shaft 312 and the side wall 220 can be 23 mm, 25 mm, 27 mm, 29 mm, or 31 mm.

[0123] It should be noted that the door body 200 can include a rear wall 230 opposite the front wall 210, and the rear wall 230 is provided with a door seal 240. In the closed state of the door body 200, the door seal 240 is clamped between the rear wall 230 and the main body 100, and plays a sealing and heat insulation role. When the door body 200 is closed from open, the door body 200 can slightly press the door seal 240 due to the elasticity of the door seal 240, forming a negative door closing angle of -1° to -5°. In the negative door closing angle state, the sealing performance of the door body 200 and the opening 120 is better. Therefore, the closed state of the door body 200 described herein can refer to the state where the relative angle between the door body 200 and the main body 100 is 0°, or the negative door closing angle state of the door body 200.

[0124] In some embodiments, in the closed state of the door body 200, the distance W0 between the axis of the first shaft 311 and the axis of the second shaft 312 in the thickness direction of the door body 200 is less than 10 mm.

[0125] By limiting the distance between the axis of the first shaft 311 and the axis of the second shaft 312 in the thickness direction of the door body 200, the distance between the first shaft 311 and the second shaft 312 is constrained, thereby further compactly arranging the first shaft 311 and the second shaft 312 and reducing the occupied space of the hinge assembly 300.

[0126] Specifically, the distance W0 between the axis center of the first shaft 311 and the axis center of the second shaft 312 in the thickness direction of the door body 200 can be 1 mm, 3 mm, 5 mm, 7 mm, 9 mm.

[0127] In some embodiments, the angle a0 between the line connecting the axis center of the first shaft 311 and the axis center of the second shaft 312 and the front wall 210 is less than 35° when the door body 200 is in the closed state.

[0128] The angle a0 between the line connecting the axis center of the first shaft 311 and the axis center of the second shaft 312 and the front wall 210 indicates the distance W0 between the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200. The smaller the angle a0 between the line connecting the axis center of the first shaft 311 and the axis center of the second shaft 312 and the front wall 210, the closer the distance W0 between the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 when the first shaft 311 is located at the first end point 321a. Compared with the case where the first shaft 311 and the second shaft 312 are located at the middle position in the thickness direction of the door body 200, the distance W0 between the first shaft 311 and the second shaft 312 and the front wall 210 is closer, so that the first shaft 311 and the second shaft 312 have more space for movement in the process of opening the door, and the thickness of the door body 200 can be reduced under the condition that the same opening angle of the door is arranged.

[0129] Specifically, the angle a0 between the line connecting the axis center of the first shaft 311 and the axis center of the second shaft 312 and the front wall 210 can be 25°, 30°, 34° when the door body 200 is in the closed state.

[0130] In some embodiments, the first shaft 311 has a first distance B0 from the side wall 220 when the door body 200 is in the closed state, and the first shaft 311 has a second distance A2 from the front wall 210 when the door body 200 is opened to 90°, and the difference between the first distance B0 and the second distance A2 is less than or equal to 2 mm.

[0131] Since the door body 200 intrudes into the main body 100 in the X direction after being opened in the embodiments of the present application, the X direction distance of the door body 200 intruding into the main body 100 is the intrusion amount, in other words, the X direction distance between the rightmost point of the projection of the door body 200 on the main body 100 and the side surface of the main body 100 is the intrusion amount. Since the rotation of the door body 200 is a dynamic change process, the rightmost point of the projection of the door body 200 on the main body 100 is different when the door body 200 is at different rotation angles, so the intrusion amount is different.

[0132] The drawer is arranged in the accommodating cavity 110 of the main body 100 to store articles. When a user takes the articles, the drawer needs to be pulled out. Therefore, in order to avoid interference between the drawer and the door body 200, the drawer can only be arranged in a space on the main body 100 which is not invaded by the door body 200. Since the width of the main body 100 is a fixed value, the greater the invasion amount is, the smaller the width of the drawer is, and thus the smaller the space for accommodating articles is.

[0133] When the door body 200 is opened to 90°, the point farthest to the right of the projection of the door body 200 on the main body 100 is the point farthest from the end surface of the door seal 240 to the side surface of the main body 100, that is, the invasion amount of the door body 200 at this time is the vertical distance between the end surface of the door seal 240 farthest from the door body 200 and the side surface of the main body 100.

[0134] It can be understood that when the door body 200 is in the closed state, the side wall 220 of the door body 200 is aligned with the side surface of the main body 100, and thus the distance between the axis of the first shaft 311 and the side wall 220 at this time is the distance between the axis of the first shaft 311 and the side surface of the main body 100, that is, the first distance B0; when the door body 200 is opened to 90°, the side wall 220 is rotated to be perpendicular to the side surface of the main body 100 at this time, and the front wall 210 is parallel to the main body 100. Since the first shaft 311 is relatively fixed to the main body 100, the vertical distance between the front wall 210 and the side surface of the main body 100 in the state that the door body 200 is opened to 90° can be calculated by calculating the difference between the second distance A2 between the axis of the first shaft 311 and the front wall 210 and the first distance B0. Since the thicknesses of the door body 200 and the door seal 240 are fixed, the distance between the end surface of the door seal 240 farthest from the door body 200 and the side surface of the main body 100 in the state that the door body 200 is opened to 90°, that is, the invasion amount, can be calculated. By limiting the difference between the first distance B0 and the second distance A2 to be less than or equal to 2 mm, the invasion amount of the door body 200 can be controlled in a very small range, and thus the use experience of the refrigeration equipment 10 can be improved.

[0135] Specifically, the difference between the first distance and the second distance can be 0.5 mm, 1 mm or 1.5 mm.

[0136] In some embodiments, when the door body 200 is opened from the closed state, the angle β0 between the tangent of the moving direction of the first shaft 311 relative to the first groove 321 and the front wall 210 is less than 50°, and the angle γ0 between the tangent of the moving direction of the second shaft 312 relative to the second groove 322 and the front wall 210 is less than 75°.

[0137] The smaller the included angle between the tangent of the activity direction and the front wall 210, the more the first shaft 311 and the second shaft 312 can slide in the width direction of the door body 200, the movement stroke of the first shaft 311 and the second shaft 312 in the thickness direction is reduced, the occupied space in the thickness direction of the door body 200 is reduced, and the hinge assembly 300 capable of large-angle opening of the door body 200 can be arranged on the ultra-thin door body 200, thereby reducing the thickness of the door body 200.

[0138] Specifically, in the case where the door body 200 is opened from the closed state, the included angle β0 between the tangent of the activity direction of the first shaft 311 relative to the first groove 321 and the front wall 210 can be 25°, 35°, or 45°, and the included angle γ0 between the tangent of the activity direction of the second shaft 312 relative to the second groove 322 and the front wall 210 can be 50°, 60°, or 70°.

[0139] In some embodiments, in the case where the door body 200 is opened from the closed state, the included angle θ0 between the tangent of the activity direction of the first shaft 311 relative to the first groove 321 and the tangent of the activity direction of the second shaft 312 relative to the second groove 322 is 15°-50°.

[0140] The smaller the included angle θ0 between the tangent of the activity direction of the first shaft 311 and the tangent of the activity direction of the second shaft 312, the more compact the movement trajectory of the first shaft 311 and the second shaft 312, thereby reducing the occupied space in the thickness direction of the door body 200, and the hinge assembly 300 capable of large-angle opening of the door body 200 can be arranged on the ultra-thin door body 200, thereby reducing the thickness of the door body 200.

[0141] Specifically, in the case where the door body 200 is opened from the closed state, the included angle θ0 between the tangent of the activity direction of the first shaft 311 relative to the first groove 321 and the tangent of the activity direction of the second shaft 312 relative to the second groove 322 can be 20°, 25°, 30°, 35°, or 45°.

[0142] In some embodiments, in the case where the door body 200 is in the closed state, there is a gap between the first shaft 311 and the end of the first groove 321, and there is a gap between the second shaft 312 and the end of the second groove 322.

[0143] In order to enable the door body 200 to form a negative closing angle of -1° to -5°, so as to avoid that the ends of the first groove 321 and the second groove 322 limit the movement of the first shaft 311 and the second shaft 312, respectively, there is a gap between the first shaft 311 and the end of the first groove 321, and there is a gap between the second shaft 312 and the end of the second groove 322, so that when the door body 200 is in the closed state, the first shaft 311 and the second shaft 312 can move in the corresponding gaps, so as to ensure that the door body 200 has a certain negative closing angle and ensures the sealing performance of the door body 200 when it is closed.

[0144] In some embodiments, the distance between the main body 100 and the cabinet 20 is 0mm-6mm.

[0145] Since the maximum overbox amount of the door body 200 during rotation in the embodiments of the present application is less than or equal to 1mm, i.e., the overbox amount of the door body 200 during rotation is small, the door body 200 is not easy to interfere with the cabinet 20, and thus the distance between the main body 100 and the cabinet 20 can be set closer to improve the space utilization and enhance the installation aesthetics of the refrigeration equipment 10.

[0146] Specifically, the distance between the main body 100 and the cabinet 20 can be 1mm, 2mm, 3mm, 4mm, 5mm.

[0147] In some embodiments, the thickness of the door body 200 is 30mm-50mm.

[0148] Since the movement trajectories of the first shaft 311 and the second shaft 312 are relatively compact, and the first shaft 311 slides in the first groove 321 and the second shaft 312 slides in the second groove 322, the arrangement of the first groove 321 and the second groove 322 is also relatively compact, i.e., the movement space of the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 and the arrangement space of the first groove 321 and the second groove 322 in the thickness direction of the door body 200 are small, so that the thickness of the door body 200 in the Y direction can be set thinner to improve the aesthetics and save space.

[0149] Specifically, the thickness of the door body 200 can be 32mm, 34mm, 38mm, 42mm, 46mm.

[0150] In some embodiments, the first hinge member 310 further includes a first mounting member 313, the first mounting member 313 includes a connecting portion 313a and a mounting portion 313b, the connecting portion 313a is fixedly connected to the main body 100, the mounting portion 313b is located outside the main body 100, and the first shaft 311 and the second shaft 312 are fixedly arranged on the mounting portion 313b.

[0151] In order to facilitate the connection of the first mounting member 313 and the main body 100, the first mounting member 313 can be in a plate-like structure, wherein a part of the first mounting member 313 overlaps and is connected with the main body 100, and the remaining part of the first mounting member 313 extends out of the main body 100, the part of the first mounting member 313 overlapping and being connected with the main body 100 is a connecting part 313a, and the part of the first mounting member 313 extending out of the main body 100 is a mounting part 313b. Since the door body 200 moves relative to the main body 100, the sliding fit between the first shaft 311 and the first slot 321 and the sliding fit between the second shaft 312 and the second slot 322 are both located on the door body 200, and since the first shaft 311 and the second shaft 312 are fixedly arranged on the mounting part 313b, the mounting part 313b is located outside the main body 100, so that the first shaft 311 and the second shaft 312 can correspond to the first slot 321 and the second slot 322 on the door body 200, respectively.

[0152] Specifically, the first mounting member 313 is arranged on the top surface of the main body 100, and the first shaft 311 and the second shaft 312 are arranged below the mounting part 313b, so that the first shaft 311 and the second shaft 312 can be located in the first slot 321 and the second slot 322, respectively. The connecting part 313a can be connected to the top surface of the main body 100 in any detachable manner such as screwing or clamping, and the present application is not limited in this regard.

[0153] In some embodiments, the second hinge member 320 further comprises a second mounting member 323, the first slot 321 and the second slot 322 are arranged on the second mounting member 323, the door body 200 is provided with a mounting slot 250, and the second mounting member 323 is arranged in the mounting slot 250.

[0154] Since the first slot 321 and the second slot 322 need to be arranged on the second mounting member 323, the second mounting member 323 can be in a block-like structure with a certain thickness to facilitate slotting. Since the second mounting member 323 is in a block-like structure, in order to reduce the occupied space of the second mounting member 323 and make the overall appearance of the door body 200 more simple, the door body 200 is provided with a mounting slot 250, and the second mounting member 323 is arranged in the mounting slot 250, and the second mounting member 323 can be arranged flush with the opening 120 of the mounting slot 250, so that the second mounting member 323 does not occupy additional space of the door body 200. Specifically, the mounting slot 250 is arranged on the top wall of the door body 200, so that the second mounting member 323 is arranged at the upper end of the door body 200 to cooperate with the first hinge member 310.

[0155] Please refer to FIGS. 10-14, in some embodiments, the side wall 220 intersects with the front wall 210 at the first edge 221, when the first edge 221 is at the first position, the distance A1 between the first axis 311 and the front wall 210 is 13mm-23mm, the distance B1 between the first axis 311 and the side wall 220 is 9mm-19mm, the distance C1 between the second axis 312 and the front wall 210 is 19mm-29mm, and the distance D1 between the second axis 312 and the side wall 220 is 22mm-32mm, wherein the first position refers to the position where the first edge 221 is closest to the cabinet 20.

[0156] The door body 200 further comprises a rear wall 230 opposite to the front wall 210, the rear wall 230 is arranged towards the opening 120 of the main body 100, and the rear wall 230 intersects with the side wall 220 at the second edge 222. During the rotation of the door body 200 relative to the main body 100, the second edge 222 can move away from the cabinet 20, while the first edge 221 moves towards the cabinet 20, when the door body 200 rotates to a certain angle, the first edge 221 is closest to the cabinet 20, at this time, the first edge 221 is at the first position, and when the door body 200 continues to rotate after passing through the angle, the first edge 221 moves away from the cabinet 20, and the second edge 222 moves towards the cabinet 20.

[0157] That is, the first edge 221 is at the first position during the rotation of the door body 200, specifically, when the rotation angle of the door body 200 relative to the main body 100 is 40°-50°, the first edge 221 is at the first position.

[0158] In the embodiments of the present application, since the distances between the first axis 311 and the front wall 210, the first axis 311 and the side wall 220, the second axis 312 and the front wall 210, and the second axis 312 and the side wall 220 are limited to small values when the first edge 221 is at the first position, the movement trajectories of the first axis 311 and the second axis 312 are relatively compact, since the first axis 311 is slidingly fitted in the first groove 321 and the second axis 312 is slidingly fitted in the second groove 322, therefore, the first groove 321 and the second groove 322 are also compactly arranged, thereby reducing the occupied space of the hinge assembly 300, so that the thickness of the door body 200 can be thinner, meeting the ultra-thin door requirement of the refrigeration equipment 10.

[0159] Specifically, the distance A1 between the first shaft 311 and the front wall 210 can be 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, the distance BA between the first shaft 311 and the side wall 220 can be 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, the distance C1 between the second shaft 312 and the front wall 210 can be 20 mm, 22 mm, 24 mm, 26 mm, 28 mm, and the distance D1 between the second shaft 312 and the front wall 210 can be 23 mm, 25 mm, 27 mm, 29 mm, 31 mm.

[0160] In some embodiments, when the first edge 221 is in the first position, the distance L1 between the first edge 221 and the side surface of the main body 100 is less than or equal to 1 mm.

[0161] It can be understood that the side surface of the main body 100 is the surface of the main body 100 close to the cabinet 20, and when the door body 200 is in the closed state, the side wall 220 can be flush with the side surface of the main body 100, that is, the first edge 221 is aligned with the side surface of the main body 100. When the door body 200 is opened from the closed state, the first edge 221 moves relative to the main body 100 to the left, and when the door body 200 is opened to a certain angle, the first edge 221 will be outwardly beyond the side surface of the main body 100, thereby there is a risk of interference with the cabinet 20.

[0162] When the first edge 221 is in the first position, the distance between the first edge 221 and the cabinet 20 is the smallest, that is, when the first edge 221 is located at the farthest position from the side surface of the main body 100, in order to avoid the first edge 221 from contacting the cabinet 20, it is limited that when the first edge 221 is in the first position, the distance between the first edge 221 and the side surface of the main body 100 is less than or equal to 1 mm, that is, the maximum overbox amount of the first edge 221 is less than or equal to 1 mm, so that as long as the distance between the refrigeration equipment 10 and the cabinet 20 is greater than 1 mm, the door body 200 can be smoothly opened, meeting the embedded installation requirement.

[0163] Specifically, when the first edge 221 is in the first position, the distance L1 between the first edge 221 and the side surface of the main body 100 can be 0.1 mm, 0.3 mm, 0.5 mm, 0.7 mm, 0.9 mm, or other values less than 1 mm, which are not specifically limited herein.

[0164] In some embodiments, when the first edge 221 is in the first position, the distance L2 between the first edge 221 and the cabinet 20 is greater than or equal to 1 mm.

[0165] When the first edge 221 is in the first position, the distance between the first edge 221 and the cabinet 20 is the smallest. By limiting the distance between the first edge 221 and the cabinet 20, the first edge 221 is less likely to interfere with the cabinet 20 even when the side of the extension body 100 is farthest away from the cabinet 20.

[0166] Specifically, when the first edge 221 is in the first position, the distance L2 between the first edge 221 and the cabinet 20 can be 1 mm, 1.5 mm, or 2 mm.

[0167] In some embodiments, when the first edge 221 is in the first position, the distance W1 between the axis of the first shaft 311 and the axis of the second shaft 312 in the thickness direction of the door body 200 is less than 12 mm.

[0168] When the door body 200 is rotated to the position where the first edge 221 is in the first position, the distance between the axis of the first shaft 311 and the axis of the second shaft 312 in the Y direction is short, i.e., the movement trajectories of the first shaft 311 and the second shaft 312 are compact, and the distance between the first shaft 311 and the second shaft 312 is always short. Since the first shaft 311 slides in the first slot 321 and the second shaft 312 slides in the second slot 322, the arrangement of the first slot 321 and the second slot 322 is also relatively compact. Therefore, under the premise of ensuring the rotation angle of the door body 200, the thickness of the door body 200 in the Y direction can be made thinner to meet the ultra-thin door requirement of the refrigeration equipment 10.

[0169] Specifically, the distance W1 between the axis of the first shaft 311 and the axis of the second shaft 312 in the thickness direction of the door body 200 can be 4 mm, 5 mm, 7 mm, 9 mm, or 11 mm.

[0170] In some embodiments, when the first edge 221 is in the first position, the angle α1 between the line connecting the axis of the first shaft 311 and the axis of the second shaft 312 and the front wall 210 is less than 35°.

[0171] The angle between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210 represents the distance between the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200. The smaller the angle between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210, the closer the distance between the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 when the first shaft 311 is located at the first end point 321a. Compared with the case where the first shaft 311 and the second shaft 312 are located at the middle position in the thickness direction of the door body 200, the distance between the first shaft 311 and the second shaft 312 and the front wall 210 is closer, so that the first shaft 311 and the second shaft 312 have more space for movement during the opening of the door, and the thickness of the door body 200 can be reduced under the condition that the hinge assembly 300 has the same opening angle.

[0172] Specifically, when the first edge 221 is located at the first position, the angle a1 between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210 can be 30°, 32°, or 34°.

[0173] In some embodiments, the rear wall 230 intersects with the side wall 220 at a second edge 222. When the first edge 221 is located at the first position, the distance L3 between the second edge 222 and the main body 100 is greater than 10 mm.

[0174] It can be understood that, during the rotation of the door body 200 to the first position where the first edge 221 is located, the second edge 222 moves away from the cabinet body 20 while also moving closer to the main body 100. By limiting the distance between the second edge 222 and the main body 100 when the first edge 221 is located at the first position, interference between the second edge 222 and the main body 100 can be avoided to some extent.

[0175] Specifically, when the first edge 221 is located at the first position, the distance L3 between the second edge 222 and the main body 100 can be 11 mm, 12 mm, 13 mm, 14 mm, or 15 mm.

[0176] Referring to FIGS. 20-23, in some embodiments, when the relative angle between the door body 200 and the main body 100 is the largest, the distance A3 between the first shaft 311 and the front wall 210 is 7 mm-17 mm, the distance B3 between the first shaft 311 and the side wall 220 is 4.5 mm-14.5 mm, the distance C3 between the second shaft 312 and the front wall 210 is 21 mm-31 mm, and the distance D3 between the second shaft 312 and the side wall 220 is 4 mm-14 mm.

[0177] When the door body 200 is rotated to the maximum angle, the distance between the first shaft 311 and the second shaft 312 and the front wall 210 and the side wall 220 is still small, that is, the movement track of the first shaft 311 and the second shaft 312 is relatively compact. Since the first shaft 311 slides in the first groove 321 and the second shaft 312 slides in the second groove 322, the arrangement of the first groove 321 and the second groove 322 is also relatively compact, thereby reducing the occupied space of the hinge assembly 300, and further making the thickness of the door body 200 thinner, thereby meeting the ultra-thin door requirement of the refrigeration equipment 10.

[0178] Specifically, the maximum angle of the door body 200 relative to the main body 100 can be greater than or equal to 100°, so that the opening degree of the door body 200 is large, and it is convenient for the user to take the articles. In addition, the distance A3 between the first shaft 311 and the front wall 210 can be 8mm, 10mm, 12mm, 14mm, 16mm, the distance B3 between the first shaft 311 and the side wall 220 can be 5.5mm, 7.5mm, 9.5mm, 11.5mm, 13.5mm, the distance C3 between the second shaft 312 and the front wall 210 can be 22mm, 24mm, 26mm, 28mm, 30mm, and the distance D3 between the second shaft 312 and the front wall 210 can be 23mm, 25mm, 27mm, 29mm, 30mm.

[0179] In some embodiments, the distance L6 between the first edge 221 and the main body 100 when the relative angle between the door body 200 and the main body 100 is the largest is 20mm-30mm.

[0180] Since the door body 200 and the main body 100 are connected through the sliding fit between the first shaft 311 and the first groove 321 and the second shaft 312 and the second groove 322, that is, a dynamic connection, if the distance between the door body 200 and the main body 100 is too far, it will cause unstable connection between the door body 200 and the main body 100, so the distance between the door body 200 and the main body 100 is limited to make the connection more stable.

[0181] Specifically, the distance L6 between the door body 200 and the main body 100 when the relative angle between the door body 200 and the main body 100 is the largest can be 21mm, 23mm, 25mm, 27mm, 29mm.

[0182] In some embodiments, the distance L7 between the door body 200 and the cabinet 20 when the relative angle between the door body 200 and the main body 100 is the largest is greater than 0.3mm.

[0183] In the case that the relative angle between the door body 200 and the main body 100 is the largest, the front wall 210 of the door body 200 is arranged close to the cabinet body 20, and the distance between the door body 200 and the cabinet body 20 represents the shortest distance between the front wall 210 and the cabinet body 20. Since the door body 200 is most likely to interfere with the edge of the cabinet body 20 during the opening process, the shortest distance between the front wall 210 and the cabinet body 20 is the X-direction distance between the front wall 210 and the edge of the cabinet body 20.

[0184] When the user takes the article, the door body 200 needs to be opened to the largest angle. In the case that the relative angle between the door body 200 and the main body 100 is the largest, the overhang amount of the door body 200 is the largest, and the door body 200 is most likely to interfere with the cabinet body 20. In the embodiment of the present application, since the overhang amount of the door body 200 is reduced, in the case that the relative angle between the door body 200 and the main body 100 is the largest, the door body 200 and the cabinet body 20 also maintain a distance, and the distance is greater than 0.3 mm, thereby greatly improving the case that the door body 200 easily interferes with the cabinet body 20.

[0185] Specifically, in the case that the relative angle between the door body 200 and the main body 100 is the largest, the distance L7 between the door body 200 and the cabinet body 20 can be 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, or 0.8 mm.

[0186] In some embodiments, in the case that the relative angle between the door body 200 and the main body 100 is the largest, the distance W3 between the axis center of the first shaft 311 and the axis center of the second shaft 312 in the thickness direction of the door body 200 is 8 mm to 20 mm.

[0187] In the case that the relative angle between the door body 200 and the main body 100 is the largest, the distance between the axis center of the first shaft 311 and the axis center of the second shaft 312 in the Y direction is short, that is, the movement track of the first shaft 311 and the second shaft 312 is relatively compact, and the first shaft 311 and the second shaft 312 always maintain a short distance. Since the first shaft 311 slides in the first groove 321, and the second shaft 312 slides in the second groove 322, the arrangement of the first groove 321 and the second groove 322 is also relatively compact. Therefore, under the premise of ensuring the rotation angle of the door body 200, the thickness of the door body 200 in the Y direction can be made thinner to improve the aesthetics and save space.

[0188] Specifically, the distance W3 between the axis center of the first shaft 311 and the axis center of the second shaft 312 in the thickness direction of the door body 200 can be 9 mm, 11 mm, 13 mm, 5 mm, or 17 mm.

[0189] In some embodiments, in the case that the relative angle between the door body 200 and the main body 100 is the largest, the included angle α3 between the line connecting the axis center of the first shaft 311 and the axis center of the second shaft 312 and the front wall 210 is less than 85°.

[0190] The angle between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210 represents the distance between the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200. The smaller the angle between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210, the closer the distance between the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 when the first shaft 311 is located at the first end point 321a. Compared with the case where the first shaft 311 and the second shaft 312 are located at the middle position in the thickness direction of the door body 200, the distance between the first shaft 311 and the second shaft 312 and the front wall 210 is closer, so that the first shaft 311 and the second shaft 312 can have more space for movement in the process of opening the door, and the thickness of the door body 200 can be reduced in the case of arranging the same hinge assembly 300 with the same opening angle of the door.

[0191] Specifically, in the case where the relative angle between the door body 200 and the main body 100 is the largest, the angle a3 between the line connecting the axis centers of the first shaft 311 and the second shaft 312 and the front wall 210 can be 80°, 81°, 82°, 83°, or 84°.

[0192] In some embodiments, the overhang amount of the door body 200 is less than 1 mm. The overhang amount is the distance by which the door body 200 moves towards the cabinet body 20 in the process of rotating the door body 200 from the closed state to the state where the relative angle between the door body 200 and the main body 100 is the largest. Limiting the overhang amount to a small value can avoid the door body 200 from pressing the cabinet body 20.

[0193] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the present specification.

[0194] In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

Claims

1. A refrigeration device comprising: a main body (100) and a door body (200) arranged at an opening (120) of the main body (100), the door body (200) comprising a front wall (210) and a side wall (220) arranged at an angle; a hinge assembly (300) comprising a first hinge member (310) and a second hinge member (320), the first hinge member (310) being mounted on the main body (100), the second hinge member (320) being mounted on the door body (200), the first hinge member (310) being fixed with a first shaft (311) and a second shaft (312), the second hinge member (320) comprising a first slot (321) and a second slot (322), the first shaft (311) being in sliding fit with the first slot (321), the second shaft (312) being in sliding fit with the second slot (322); in the process of opening the door body (200) from the closed state to the maximum angle, the first shaft (311) can slide relative to the first slot (321), so that the first shaft (311) moves away from the front wall (210) to form a first trajectory, and moves close to the front wall (210) to form a second trajectory; the second shaft (312) can slide relative to the second slot (322) and move away from the front wall (210) to form a third trajectory, and move close to the front wall (210) to form a fourth trajectory; wherein, in the case that the door body (200) is opened to 90°, the distance between the first shaft (311) and the front wall (210) is 10mm-20mm, and the distance between the first shaft (311) and the side wall (220) is 17mm-27mm, the distance between the second shaft (312) and the front wall (210) is 6mm-16mm, and the distance between the second shaft (312) and the side wall (220) is 30mm-40mm.

2. The refrigeration appliance of claim 1, wherein, In the case that the door body (200) is opened to 90°, the angle between the line connecting the centers of the first shaft (311) and the second shaft (312) and the front wall (210) is less than 70°.

3. The refrigeration appliance of claim 1, wherein, In the process of opening the door body (200) from the closed state to 10°, the first shaft (311) moves along the first trajectory in a circular arc, and the second shaft (312) moves along the third trajectory in a circular arc.

4. The refrigeration appliance of claim 3, wherein, The door body (200) is provided with a door seal (240) cooperating with the opening (120), the door seal (240) and the side wall (220) of the door body (200) have a gap, in the process of opening the door body (200) from the closed state to 10°, the instantaneous center of the first shaft (311) and the second shaft (312) is located in the plane in which the side edges of the door seal (240) are located.

5. The refrigeration appliance of claim 3 or 4, wherein, The door body (200) is provided with a door seal (240) matched with the opening (120), and a gap is formed between the door seal (240) and the side wall (220) of the door body (200), and the instantaneous center of the first shaft (311) and the second shaft (312) is located outside the plane where the side edges of the door seal (240) are located during the process that the door body (200) is opened from the closed state to 10°.

6. The refrigeration appliance of any of claims 3 to 5, wherein, During the process that the door body (200) is opened from the closed state to 10°, the distance between the instantaneous center of the first shaft (311) and the second shaft (312) and the plane where the side wall (220) of the door seal (240) is located is less than 10 mm.

7. The refrigeration appliance of any of claims 1-6, wherein, During the process that the door body (200) is opened from 10° to 90°, the first shaft (311) first moves along the first track in a circular arc motion, and then moves along the second track in a circular arc motion, and the second shaft (312) moves along the third track in an elliptical motion.

8. The refrigeration appliance of any of claims 1-6, wherein, During the process that the door body (200) is opened from 90° to 115°, the first shaft (311) moves along the second track in a circular arc motion, and the second shaft (312) moves along the fourth track in a linear motion.

9. The refrigeration appliance of any of claims 1-6, wherein, During the process that the door body (200) is opened from 115° to the maximum angle, the first shaft (311) and the second shaft (312) rotate around the axes.

10. The refrigeration appliance of any of claims 1-6, wherein, The thickness of the door body (200) is 30 mm to 50 mm.

11. The refrigeration appliance of any of claims 1-6, wherein, The refrigeration equipment (10) is one of a refrigerator, a freezer, a wine cabinet, a cigar cabinet and an ice maker.

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