Refrigeration equipment

Abstract

The embodiment of the utility model provides refrigeration equipment which comprises a box body, a door body and a hinge assembly, in the process that the door body is opened to the maximum angle from the closed state, a first shaft can slide relative to a first groove, so that the first shaft moves away from a front wall and is close to a side wall to form a first track, and moves close to the front wall and is close to the side wall to form a second track; the second shaft can slide relative to the second groove, move away from the front wall and close to the side wall to form a third track, and move close to the front wall and close to the side wall to form a fourth track. The distance between the first shaft and the front wall is 7 mm-17 mm and the distance between the first shaft and the side edge is 4.5 mm-14.5 mm under the condition that the first shaft is located at the first final position, and the distance between the second shaft and the front wall is 21 mm-31 mm and the distance between the second shaft and the side edge is 4 mm-14 mm under the condition that the second shaft is located at the second final position.

Description

Technical Field

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

[0002] With the development of society and the gradual improvement of people's quality of life, people are increasingly demanding aesthetically pleasing installations for household refrigeration equipment. Embedding refrigeration equipment within cabinets, known as embedded refrigeration units, has become a popular approach to achieving a unified home decor style. However, in related technologies, the doors of embedded refrigeration units easily interfere with surrounding cabinets when opened, making it difficult to achieve wide-angle opening. Utility Model Content

[0003] The present application aims to at least to some extent solve the technical problem in the related art that the door of an embedded refrigeration device easily interferes with the surrounding cabinets when opening, making it difficult to achieve a large angle opening. To this end, the present application provides a refrigeration device.

[0004] In a first aspect, an embodiment of the present application provides a refrigeration device, comprising:

[0005] A box body and a door body, wherein the door body is arranged at the opening of the box body, and the door body comprises side walls and a front wall arranged at an angle;

[0006] The hinge assembly includes a first hinge member and a second hinge member, the first hinge member is mounted on the box body, the second hinge member is mounted on the door body, a first shaft and a second shaft are fixedly provided on the first hinge member, the second hinge member includes a first slot and a second slot, the first shaft is slidably engaged with the first slot, and the second shaft is slidably engaged with the second slot, and when the door body is opened from a closed state to a maximum angle, the first shaft slides in the first slot, and the second shaft slides in the second slot;

[0007] During the process of the door body being 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 and approaches the side wall to form a first track, and moves close to the front wall and approaches the side wall to form a second track; the second shaft can slide relative to the second slot, and moves away from the front wall and approaches the side wall to form a third track, and moves close to the front wall and approaches the side wall to form a fourth track;

[0008] Specifically, when the first axis is located at the first end position, the distance between the first axis and the front wall is 7mm~17mm, and the distance between the first axis and the side edge is 4.5mm~14.5mm; when the second axis is located at the second end position, the distance between the second axis and the front wall is 21mm~31mm, and the distance between the second axis and the side edge is 4mm~14mm.

[0009] In the refrigeration equipment provided in the embodiment of the present application, in the process of opening the door body from a closed state to the maximum angle, since the first axis and the second axis first move away from the front wall and then move closer to the front wall, that is, the movement trajectories of the first axis and the second axis have a turning point, therefore, when the thickness of the door body is constant, it can have a longer movement trajectory, thereby achieving a large angle opening of the door.

[0010] In some embodiments, when the first axis is at the first end position and the second axis is at the second end position, the angle between the line connecting the axis centers of the first axis and the second axis and the front wall is less than 85°.

[0011] In some embodiments, when the door body is opened from a closed state to a third angle, the first axis moves in a circular arc along the first trajectory, and the second axis moves in a circular arc along the third trajectory.

[0012] In some embodiments, the door body is provided with a door seal that cooperates with the opening, and there is a gap between the door seal and the side wall of the door body. In the process of the door body opening from a closed state to a third angle, the instantaneous center of the first axis and the second axis is located in the plane where the side of the door seal is located.

[0013] In some embodiments, the door body is provided with a door seal that cooperates with the opening, and there is a gap between the door seal and the side wall of the door body. In the process of the door body opening from a closed state to a third angle, the instantaneous center of the first axis and the second axis is located outside the plane where the side of the door seal is located.

[0014] In some embodiments, when the door body is opened from a closed state to a third angle, a distance between the instantaneous center of the first axis and the second axis and a plane where the side wall of the door seal is located is less than 10 mm.

[0015] In some embodiments, when the door body opens from the third angle to the fourth angle, the first axis first performs circular motion along the first trajectory and then performs circular motion along the second trajectory, and the second axis performs elliptical motion along the third trajectory.

[0016] In some embodiments, when the door body opens from the fourth angle to the fifth angle, the first axis moves in a circular arc along the second trajectory, and the second axis moves in a straight line along the fourth trajectory.

[0017] In some embodiments, during the process of the door body opening from the fifth angle to the maximum angle, the first shaft and the second shaft rotate around a fixed axis, and the second shaft rotates around the first axis.

[0018] In some embodiments, the thickness of the door body is 30 mm to 50 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 Shows the structure of the refrigeration equipment Figure 1 .

[0021] Figure 2 Shows the structure of the refrigeration equipment Figure 2 .

[0022] Figure 3 Shown Figure 2 A partial enlarged view of point A in the middle.

[0023] Figure 4 A structural schematic diagram of the hinge assembly is shown.

[0024] Figure 5 Shown Figure 4 Schematic diagram of the structure of the first hinge member.

[0025] Figure 6 Shown Figure 4 Schematic diagram of the structure of the second hinge.

[0026] Figure 7 Shows the structure when the relative angle between the door and the box is the largest Figure 1 .

[0027] Figure 8 Shown Figure 7 A partial enlargement of point D in the middle Figure 1 .

[0028] Figure 9 Shown Figure 7 A partial enlargement of point D in the middle Figure 2 .

[0029] Figure 10 Shown Figure 9 A partial enlarged view of .

[0030] Figure 11 Shows the structure when the relative angle between the door and the box is the largest Figure 2 .

[0031] Figure 12 It shows a structural schematic diagram when the door body is in a closed state.

[0032] Figure 13 Shown Figure 12 A partial enlargement of point B in the middle Figure 1 .

[0033] Figure 14 Shown Figure 12 A partial enlargement of point B in the middle Figure 2 .

[0034] Figure 15 It shows a structural diagram when the relative angle between the door body and the box body is 45°.

[0035] Figure 16 Shown Figure 15 A partial enlargement of point C in the middle Figure 1 .

[0036] Figure 17 Shown Figure 15 A partial enlargement of point C in the middle Figure 2 .

[0037] Figure 18 Shown Figure 15 A partial enlargement of point C in the middle Figure 3 .

[0038] Figure 19 Shown Figure 15 A partial enlargement of point C in the middle Figure 4 .

[0039] Figure 20 Shows the structure when the relative angle between the door and the box is 90° Figure 1 .

[0040] Figure 21 Shown Figure 20 A partial enlargement of point D in the middle Figure 1 .

[0041] Figure 22 Shown Figure 20 A partial enlargement of point D in the middle Figure 2 .

[0042] Figure 23 Shows the structure when the relative angle between the door and the box is 90° Figure 2.

[0043] Reference numerals:

[0044] 10-refrigeration equipment, 100-box, 110-accommodation chamber, 120-opening, 200-door body, 210-front wall, 220-side wall, 221-first edge, 222-second edge, 230-rear wall, 240-door seal, 250-mounting groove, 300-hinge assembly, 310-first hinge member, 311-first axis, 312-second axis, 313-first mounting member, 313a-connecting portion, 313b-mounting portion, 320-second hinge member, 321-first groove, 321a-first endpoint, 321b-first inflection point, 321c-second endpoint, 322-second groove, 322a-third endpoint, 322b-second inflection point, 322c-fourth endpoint, 323-second mounting member, 20-cabinet. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0046] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship and movement status of various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0047] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0048] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0049] With the development of society and the gradual improvement of people's quality of life, people are increasingly demanding the aesthetics of household refrigeration equipment. Embedding refrigeration equipment in cabinets, or creating embedded refrigeration equipment to achieve a unified home decoration style, has become popular. However, in related technologies, the door of embedded refrigeration equipment easily interferes with the surrounding cabinets when opened, making it difficult to achieve a wide angle opening. To address this issue to a certain extent, embodiments of the present application provide a refrigeration device that enables the door to open at a wide angle without interfering with the cabinets.

[0050] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0051] See also Figure 1 and Figure 2 The embodiment of the present application provides a refrigeration device 10. The refrigeration device 10 provided in the embodiment of the present application is embedded in the cabinet 20. The refrigeration device 10 provided in the embodiment of the present application enables the door body 200 to open at a large angle without interfering with the cabinet 20.

[0052] The refrigeration device 10 may be a refrigerator, a wine cabinet, a cigar cabinet, an ice maker, or any other refrigeration device 10 that can be embedded in a cabinet 20 and has a door 200 , without limitation.

[0053] The refrigeration device 10 is roughly a rectangular parallelepiped. For the convenience of description, the height direction Z, width direction X and thickness direction Y are defined respectively. Among them, when the refrigeration device 10 is in use, the vertical direction is the height direction Z, and the projection of the refrigeration device 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, for the convenience of description, six directions are defined: up, down, left, right, front, and back. Among them, in the height direction Z, the direction close to the top surface is up, and the direction close to the bottom surface is down. 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 box body 100 is the back, and the opposite side is the front.

[0055] See also Figures 1-6 In the embodiment of the present application, the refrigeration device 10 includes a housing 100, a door 200, and a hinge assembly 300. The door 200 is arranged at the opening 120 of the housing 100, and the door 200 includes a side wall 220 and a front wall 210 arranged at an angle; the hinge assembly 300 includes a first hinge member 310 and a second hinge member 320, the first hinge member 310 is installed on the housing 100, and the second hinge member 320 is installed on the door 200, and a first shaft 311 and a second shaft 312 are fixed on the first hinge member 310, and the second hinge member 320 includes a first groove 321 and a second groove 322, the first shaft 311 slides in the first groove 321, and the second shaft 312 slides in the second groove 322, and when the door 200 is opened from a closed state to a maximum angle, the first shaft 311 slides in the first groove 321, and the second shaft 312 slides in the second groove 322.

[0056] In the process of the door body 200 opening from the closed state to the maximum angle, the first shaft 311 can slide relative to the first groove 321, so that the first shaft 311 moves away from the front wall 210 and approaches the side wall 220 to form a first track, and moves close to the front wall 210 and approaches the side wall 220 to form a second track; the second shaft 312 can slide relative to the second groove 322, so that the second shaft moves away from the front wall 210 and approaches the side wall 220 to form a third track, and moves close to the front wall 210 and approaches the side wall 220 to form a fourth track.

[0057] Among them, see Figure 7 and Figure 8 When the first axis 311 is at the first end position, the distance between the first axis 311 and the front wall 210 is 7mm~17mm, and the distance between the first axis 311 and the side is 4.5mm~14.5mm. When the second axis 312 is at the second end position, the distance between the second axis 312 and the front wall 210 is 21mm~31mm, and the distance between the second axis 312 and the side is 4mm~14mm.

[0058] The housing 100 is the foundation of the refrigeration unit 10 and provides a mounting base for the other components of the refrigeration unit 10. The housing 100 has an opening 120 and a accommodating cavity 110 for storing items. The opening 120 and accommodating cavity 110 are connected. The door 200 is mounted on the opening 120 of the housing 100 to seal the accommodating space and provide a stable storage space for items.

[0059] The refrigeration device 10 is used to freeze or refrigerate items. When items need to be placed or taken out, the door body 200 needs to be opened. In order to be able to open the door body 200, a double-axis double-slot hinge assembly 300 can be used, that is, the door can be opened and closed by sliding the axis in the groove. In order to ensure the stability of the door body 200 during the opening or closing process, at least two hinge assemblies 300 are provided, and the two hinge assemblies 300 are respectively provided on one side of the upper end and the lower end of the door body 200. The hinge assembly 300 can be provided on either the left side or the right side of the door body 200, without limitation. For ease of description, the embodiment of the present application is described with the hinge assembly 300 being provided on the left side of the upper end of the door body 200. When the hinge assembly 300 is provided on the lower end or right side of the door body 200, the same can be applied.

[0060] The first hinge 310 and the second hinge 320 start to rotate relative to each other in the forward direction from the initial state, which corresponds to the state in which the door body 200 rotates from closed to open in the refrigeration equipment 10. The first hinge 310 and the second hinge 320 can also rotate relative to each other in the reverse direction to return to the initial state, which corresponds to the state in which the door body 200 rotates from open to closed in the refrigeration equipment 10. For the sake of ease of understanding and explanation, in the subsequent description of the process of the shaft moving in the groove, the first hinge 310 and the second hinge 320 are based on the relative forward rotation, that is, the door body 200 rotates from closed to open, and no further details will be given.

[0061] It should be noted that since the refrigeration equipment 10 is embedded in the cabinet 20, cabinets 20 are provided on both the left and right sides of the refrigeration equipment 10. Since the door 200 may only interfere with the cabinet 20 on one side during the opening process, the cabinet 20 in this article refers to the cabinet 20 close to the hinge assembly 300, that is, the cabinet 20 located on the left side of the refrigeration equipment 10, and the side wall 220 of the door 200 in this article refers to the side wall 220 on the left side of the door 200, and the side of the box 100 in this article refers to the side on the left side of the box 100.

[0062] During the process of opening or closing 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 to constrain the movement trajectory of the door body 200, so that the door body 200 has a tendency to move to the right, thereby improving the situation where the door body 200 collides and interferes with the cabinet body 20 during movement.

[0063] During the process of opening the door body 200 from the closed position to the maximum angle, the first shaft 311 can slide relative to the first slot 321, causing the first shaft 311 to move away from the front wall 210 to form a first trajectory and then move closer to the front wall 210 to form a second trajectory. That is, the first shaft 311 first moves away from the front wall 210 and then moves closer to the front wall 210. Therefore, the first trajectory and the second trajectory extend in different directions, and the trajectory of the first shaft 311 has a turning point. Similarly, since 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 then move closer to the front wall 210 to form a fourth trajectory, the third and fourth trajectory extend in different directions, and the trajectory of the second shaft 312 also has a turning point. Of course, while the first shaft 311 and the second shaft 312 first move away from the front wall 210 and then move closer to the front wall 210, they also move closer to the side wall 220.

[0064] It is understood that the longer the motion trajectories of the first axis 311 and the second axis 312, the greater the opening angle of the door body 200. During the process of opening the door body 200 from a closed state to the maximum angle, the first axis 311 and the second axis 312 first move away from the front wall 210 and then move closer to the front wall 210. That is, the motion trajectories of the first axis 311 and the second axis 312 have a turning point. If the thickness of the door body 200 is constant, compared to movement along a single direction, the presence of the turning point allows the first axis 311 and the second axis 312 to have a longer motion trajectory, thereby enabling wide-angle opening.

[0065] When the first shaft 311 is at the first end position and the second shaft 312 is at the second end position, the distances between the first shaft 311 and the second shaft 312 and the front wall 210 and the side wall 220 are still small, that is, the movement trajectories of the first shaft 311 and the second shaft 312 are 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 space occupied by the hinge assembly 300, and thus making the thickness of the door body 200 thinner, meeting the ultra-thin door requirements of the refrigeration equipment 10.

[0066] It should be noted that when the first shaft 311 is located at the first end position and the second shaft 312 is located at the second end position, the first shaft 311 is located at the first end position in the first groove 321 and the second shaft 312 is located at the second end position in the second groove 322 .

[0067] Specifically, the distance A3 between the first axis 311 and the front wall 210 can be 8 mm, 10 mm, 12 mm, 14 mm, or 16 mm, the distance B3 between the first axis 311 and the side wall 220 can be 5.5 mm, 7.5 mm, 9.5 mm, 11.5 mm, or 13.5 mm, the distance C3 between the second axis 312 and the front wall 210 can be 22 mm, 24 mm, 26 mm, 28 mm, or 30 mm, and the distance D3 between the second axis 312 and the front wall 210 can be 23 mm, 25 mm, 27 mm, 29 mm, or 30 mm.

[0068] The distance between the first axis 311 and the front wall 210 represents the vertical distance between the axis center of the first axis 311 and the front wall 210, and the distance between the first axis 311 and the side wall 220 represents the vertical distance between the axis center of the first axis 311 and the side wall 220. Similarly, the distance between the second axis 312 and the front wall 210 represents the vertical distance between the axis center of the second axis 312 and the front wall 210, and the distance between the second axis 312 and the side wall 220 represents the vertical distance between the axis center of the first axis 311 and the front wall 210.

[0069] In some embodiments, during the process of the door body 200 opening from a closed state to a first angle, the first axis 311 moves along a first trajectory, and the second axis 312 moves along a third trajectory; during the process of the door body 200 opening from the first angle to the second angle, the first axis 311 moves along the second trajectory, and the second axis 312 continues to move along the third trajectory; during the process of the door body 200 opening from the second angle to the maximum angle, the first axis 311 continues to move along the second trajectory, and the second axis 312 moves along the fourth trajectory, and the distance between the first axis 311 and the second axis 312 remains unchanged.

[0070] By limiting the movement trajectory of the first axis 311 and the second axis 312, in the initial stage of the door body 200 opening from the closed state to the first angle, the first axis 311 and the second axis 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 box body 100 to avoid interference between the door body 200 and the box body 100; in the intermediate stage of the door body 200 opening from the first angle to the second angle, the first axis 311 first changes the movement direction and moves along the second trajectory in the direction close to the front wall 210, and the second axis 312 continues to move along the third trajectory in the direction away from the front wall 210. Through the movement of the first axis 311 and the second axis 312 in different directions relative to the front wall 210, the door body 200 can be rotated in a larger angular range relative to the box body 100; in the final stage of the door body 200 opening from the second angle to the maximum angle, the first axis 311 and the second axis 312 both move in the direction close to the front wall 210 to facilitate the large-angle opening of the door body 200.

[0071] Specifically, the first angle may be 43° to 47°, the second angle may be 88° to 92°, and the maximum angle may be greater than or equal to 120°.

[0072] Next, the overall trajectory of the first axis 311 and the second axis 312 is described in sections:

[0073] See also Figure 7-11 In some embodiments, when the door body 200 is opened from the closed state to the third angle, the first axis 311 moves in an arc along the first trajectory, and the second axis 312 moves in an arc along the third trajectory.

[0074] Among them, the first axis 311 makes a circular motion along the portion of the first trajectory, and the second axis 312 makes a circular motion along the portion of the third trajectory, that is, in the process of the door body 200 opening from the closed state to the third angle, the first axis 311 does not move to the end of the first trajectory, and the second axis 312 does not move to the end of the second trajectory.

[0075] The rotation centers of the motion trajectory of the first axis 311 and the motion trajectory of the second axis 312 are different, that is, the first axis 311 and the second axis 312 do not rotate concentrically. Therefore, the motion trajectory of the first axis 311 and the motion trajectory of the second axis 312 are not parallel and have an intersection. This makes the motion trajectory of the first axis 311 and the second axis 312 more compact, thereby occupying less space in the thickness direction of the door body 200, thereby reducing the thickness of the door body 200. The curvature of the motion trajectory of the first axis 311 and the curvature of the motion trajectory of the second axis 312 can be the same or different, and there is no limitation on this.

[0076] Specifically, the third angle may be 8° to 12°.

[0077] In some embodiments, the door body 200 is provided with a door seal 240 that cooperates with the opening 120, and there is a gap between the door seal 240 and the side wall 220 of the door body 200. In the process of the door body 200 being opened from a closed state to a third angle, the instantaneous center of the first axis 311 and the second axis 312 is located in the plane where the side of the door seal 240 is located.

[0078] Draw a perpendicular line through the tangents of the motion trajectory of the first axis 311 and the second axis 312, and the intersection of the two perpendicular lines is the instantaneous center. The door seal 240 is a sealing strip that prevents air, moisture, dust, and other impurities from entering the accommodating chamber 110 through the door gap, thereby improving the sealing of the accommodating chamber 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 on which the side edge of the door seal 240 lies is the YZ plane of the side edge.

[0079] During the process of the door body 200 opening from the closed state to the third angle, under the action of the rotation of the door body 200, the door body 200 moves away from the cabinet body 20 and also intrudes into the door seal 240. Since the door seal 240 is elastic, the door body 200 will squeeze the door seal 240. If the instantaneous center of the first axis 311 and the second axis 312 is too far from the plane where the side of the door seal 240 is located, the intrusion amount will be too large, and the door seal 240 will twist. Therefore, if the instantaneous center of the first axis 311 and the second axis 312 is located in the plane where the side of the door seal 240 is located, it can be ensured that the intrusion amount of the door body 200 into the door seal 240 is less than 1 mm, reducing the risk of the door seal 240 twisting.

[0080] In some embodiments, the door body 200 is provided with a door seal 240 that cooperates with the opening 120, and there is a gap between the door seal 240 and the side wall 220 of the door body 200. In the process of the door body 200 being opened from a closed state to a third angle, the instantaneous center of the first axis 311 and the second axis 312 is located outside the plane where the side of the door seal 240 is located.

[0081] That is, the instantaneous centers of the first and second axes 311, 312 can also be located outside the plane of the side edges of the door seal 240. As long as the distance between the instantaneous centers of the first and second axes 311, 312 and the plane of the side edges of the door seal 240 is kept small, the risk of the door seal 240 twisting can be reduced. Specifically, the distance between the instantaneous centers of the first and second axes 311, 312 and the plane of the sidewall 220 of the door seal 240 can be less than 10 mm.

[0082] The distance between the instantaneous center of the first axis 311 and the second axis 312 and the plane where the side wall 220 of the door seal 240 is located can be 1 mm, 3 mm, 5 mm, 7 mm, or 9 mm.

[0083] In some embodiments, when the door body 200 opens from the third angle to the fourth angle, the first axis 311 first moves in an arc along the first trajectory and then moves in an arc along the second trajectory, and the second axis 312 moves in an elliptical motion along the third trajectory.

[0084] Here, performing elliptical motion refers to moving along a partial shape of an ellipse, that is, the third trajectory is divided into two segments, one of which is a circular arc and the other is a partial elliptical shape, and the curvatures of the two arcs are different.

[0085] During the process of the door body 200 opening from the third angle to the fourth angle, the first axis 311 has moved to the end of the first trajectory and changed its direction of movement to enter the second trajectory to perform circular motion, while the second axis 312 continues to perform elliptical motion along the third trajectory. Therefore, the first axis 311 passes the turning point before the second axis 312. During the turning process of the first axis 311, the displacement of the first axis 311 relative to the first groove 321 is extremely small. At this time, if the second axis 312 is also located at the second inflection point 322b, it is easy to get stuck, resulting in the door body 200 being unable to rotate relative to the main body 100, causing failure to open the door; when the first axis 311 moves to the turning point, the second axis 312 moves away from the front wall 210 along the third trajectory, so that when the first axis 311 changes its direction of movement, the door body 200 can still move toward the side away from the pivot, thereby improving the flexibility of the door body 200 rotation and avoiding hitting the cabinet body 20 during the door opening process.

[0086] Specifically, the fourth angle may be 88° to 92°.

[0087] In some embodiments, when the door body 200 opens from the fourth angle to the fifth angle, the first shaft 311 performs circular motion along the second trajectory, and the second shaft 312 performs linear motion along the fourth trajectory.

[0088] That is, during the process of the door body 200 opening from the fourth angle to the fifth angle, the second shaft 312 has passed the end of the third track and changed its direction of movement to enter the fourth track for linear motion. During this turning process, the displacement of the second shaft 312 relative to the second slot 322 is extremely small. At this time, if the first shaft 311 is also at the turning point, it is easy to get stuck, causing the door body 200 to be unable to rotate relative to the main body 100, resulting in a failure to open the door. When the second shaft 312 moves to the turning point, the first shaft 311 moves along the second track close to the front wall 210, so that when the second shaft 312 changes its direction of movement, the door body 200 can still move toward the side away from the pivot, thereby improving the flexibility of the door body 200's rotation and avoiding collision with the cabinet body 20 during the door opening process.

[0089] Specifically, the fifth angle may be 113° to 117°.

[0090] In some embodiments, when the door body 200 is opened from the fifth angle to the maximum angle, the first shaft 311 rotates around a fixed axis, and the second shaft 31 rotates around the first shaft 311 .

[0091] Among them, the first shaft 311 rotates around the fixed axis, that is, the first shaft 311 rotates on its own axis without sliding relative to the first groove 321. At the same time, the second shaft 312 rotates around the first shaft 311 along the fourth trajectory, that is, the second shaft 312 rotates with the first shaft 311 as the center of the circle, and will have relative motion with the second groove 322.

[0092] In some embodiments, when the first axis 311 is at the first end position and the second axis 312 is at the second end position, the angle between the line connecting the axis centers of the first axis 311 and the second axis 312 and the front wall 210 is less than 85°.

[0093] When the first axis 311 is at the first end position and the second axis 312 is at the second end position, the door body 200 is opened to its maximum angle. The angle between the axis line connecting the axes of the first axis 311 and the second axis 312 and the front wall 210 represents the distance between the first axis 311 and the second axis 312 in the thickness direction of the door body 200. The smaller the angle between the axis line connecting the axes of the first axis 311 and the second axis 312 and the front wall 210, the closer the distance between the first axis 311 and the second axis 312 in the thickness direction of the door body 200 is when the first axis 311 is at the first end point 321a. Compared to when the first axis 311 and the second axis 312 are at the middle position in the thickness direction of the door body 200, the closer the distance between the first axis 311 and the second axis 312 and the front wall 210 is, allowing the first axis 311 and the second axis 312 to have more room to move during the door opening process, and when the hinge assembly 300 is arranged at the same door opening angle, the thickness of the door body 200 can be reduced.

[0094] Specifically, when the first axis 311 is at the first end position and the second axis 312 is at the second end position, the angle α3 between the line connecting the axis center of the first axis 311 and the axis center of the second axis 312 and the front wall 210 can be 80°, 81°, 82°, 83°, or 84°.

[0095] In some embodiments, when the first shaft 311 is located at the first end position and the second shaft 312 is located at the second end position, the distance L7 between the door body 200 and the cabinet body 20 is greater than 0.3 mm.

[0096] When the first axis 311 is at the first end position and the second axis 312 is at the second end position, the front wall 210 of the door body 200 is set 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 edges of the front wall 210 and the cabinet body 20.

[0097] When a user wants to take an item, they need to open the door to its maximum angle. When the relative angle between the door body 200 and the cabinet 100 is at its maximum, the door body 200 extends beyond the cabinet 100 to the maximum extent, making it most likely to interfere with the cabinet 20. However, in the embodiment of the present application, since the amount of door body 200 extending beyond the cabinet 100 is reduced, the distance between the door body 200 and the cabinet 20 is maintained, and the distance is greater than 0.3 mm, even when the first axis 311 is at the first end position and the second axis 312 is at the second end position. This significantly reduces the risk of interference between the door body 200 and the cabinet 20.

[0098] Specifically, when the first axis 311 is located at the first end position and the second axis 312 is located at the second end position, 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.

[0099] In some embodiments, when the first shaft 311 is at the first end position and the second shaft 312 is at the second end position, a distance W3 between the axis centers of the first shaft 311 and the second shaft 312 in the thickness direction of the door body 200 is 8 mm to 20 mm.

[0100] When the first shaft 311 is located at the first end position and the second shaft 312 is located at the second end position, 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 shorter, that is, the movement trajectory of the first shaft 311 and the second shaft 312 is relatively compact, and a relatively short distance is always maintained between the first shaft 311 and 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 arrangement of the first groove 321 and the second groove 322 is also relatively compact. Therefore, on 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.

[0101] Specifically, the distance W3 between the axis center of the first axis 311 and the axis center of the second axis 312 in the thickness direction of the door body 200 can be 9 mm, 11 mm, 13 mm, 5 mm, or 17 mm.

[0102] In some embodiments, the door 200 has a box-over-box distance of less than 1 mm. The box-over-box distance is the distance the door 200 moves toward the cabinet 20 during the process of rotating from the closed state to the maximum relative angle with the cabinet 100. Limiting the box-over-box distance to a small value prevents the door 200 from squeezing the cabinet 20.

[0103] In some embodiments, the shape of the first groove 321 can match the motion trajectory of the first shaft 311, and the shape of the second groove 322 can match the motion trajectory of the second shaft 312. In this way, the first groove 321 and the second groove 322 can respectively provide guidance for the movement of the first shaft 311, so that the first shaft 311 and the second shaft 312 can move precisely according to the set trajectory, thereby improving the rotation accuracy of the door body 200.

[0104] See also Figure 6 In some embodiments, the first groove 321 includes a first inflection point 321b, a first endpoint 321a, and a second endpoint 321c; the first inflection point 321b is located between the first endpoint 321a and the second endpoint 321c and is located 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 endpoint 322a, and a fourth endpoint 322c; the second inflection point 322b is located between the third endpoint 322a and the fourth endpoint 322c and is located on the side of the second groove 322 away from the front wall 210;

[0105] In the process of the door body 200 opening from the closed state to the maximum angle, when the first axis 311 moves from the first end point 321a toward the first inflection point 321b, the second axis 312 moves from the third end point 322a toward the second inflection point 322b; when the first axis 311 moves from the first inflection point 321b toward the second end point 321c, the second axis 312 slides toward the second inflection point 322b and moves through the second inflection point 322b toward the fourth end point 322c.

[0106] It is understood that the first inflection point 321b corresponds to the turning point of the motion trajectory of the first shaft 311, and the second inflection point 322b corresponds to the turning point of the motion trajectory of the second shaft 312. Since the first shaft 311 slides in the first slot 321 and the second shaft 312 slides in the second slot 322, the stroke of the first shaft 311 is roughly equal to the length of the first slot 321, and the stroke of the second shaft 312 is roughly equal to the length of the second slot 322. In other words, the longer at least one of the first slot 321 and the second slot 322 is, the greater the opening angle of the door body 200.

[0107] Specifically, in the first groove 321, the groove section between the first endpoint 321a and the first inflection point 321b coincides with the first trajectory, and the groove section between the first inflection point 321b and the first endpoint 321a coincides with the second trajectory; in the second groove 322, the groove section between the third endpoint 322a and the second inflection point 322b coincides with the third trajectory, and the groove section between the second inflection point 322b and the fourth endpoint 322c coincides with the fourth trajectory.

[0108] In the process of opening the door body 200 from a closed state to the maximum angle, the first axis 311 moves from the first end point 321a through the first inflection point 321b to the second end point 321c, so that the first axis 311 first moves away from the front wall 210 and then moves closer to the front wall 210, and the second axis 312 moves from the third end point 322a through the second inflection point 322b to the fourth end point 322c, so that the second axis 312 first moves away from the front wall 210 and then moves closer 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 of the door body 200). That is, under the condition of the same track length, the first groove 321 has a first inflection point 321b and the second groove 322 has a second inflection point 322b, so that under the condition of the same track length, a smaller space can be occupied in the thickness direction of the door body 200, the thickness of the door body 200 can be reduced, and a large angle opening can be achieved in the case of an ultra-thin door.

[0109] Specifically, when the door body 200 is in a closed state, the first axis 311 is located at the first endpoint 321a, and the second axis 312 is located at the third endpoint 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 endpoint 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 endpoint 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 endpoint 321c, and the second axis 312 is located at the fourth endpoint 322c.

[0110] In some embodiments, when the first axis 311 is located at the first inflection point 321 b , the second axis 312 is offset from the second inflection point 322 b ; when the second axis 312 is located at the second inflection point 322 b , the first axis 311 is offset from the first inflection point 321 b .

[0111] It can be understood that the first axis 311 needs to change the direction of movement at the first inflection point 321b and the second axis 312 needs to change the direction of movement at the second inflection point 322b, and 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 relatively 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 direction of movement at the same time. At this time, the relative displacement of the first axis 311 relative to the first groove 321 and the relative displacement of the second axis 312 relative to the second groove 322 are small, resulting in a small rotation amplitude of the door body 200 relative to the box body 100, and it is easy to cause jamming.

[0112] 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, the first axis 311 changes its movement direction in the first slot 321 and the displacement of the first axis 311 relative to the first slot 321 is very small, the second axis 312 is offset from the second inflection point 322b, and the second axis 312 can move between the third endpoint 322a and the second inflection point 322b, or the second axis 312 can move between the fourth endpoint 322c and 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, and the second axis 312 changes its movement direction in the second slot 322 direction and the displacement of the second axis 312 relative to the second slot 322 is very small, the first axis 311 is offset from the first inflection point 321b, the first axis 311 can be moved between the first endpoint 321a and the first inflection point 321b, or the first axis 311 can be moved between the second endpoint 321c and the first inflection point 321b; when one of the first axis 311 and the second axis 312 is located at the corresponding inflection point, the other is offset from the corresponding inflection point and is displaced in a large range relative to the corresponding slot, so that the rotation between the first hinge 310 and the second hinge 320 is more flexible, ensuring that the door body 200 opens smoothly without exceeding the side of the box body 100.

[0113] In some embodiments, when the first shaft 311 is located at the first inflection point 321b, the first shaft 311 changes its direction of movement at the first inflection point 321b, from moving from the first end point 321a toward the first inflection point 321b to moving from the first inflection point 321b toward the second end point 321c. During this turning process, the displacement of the first shaft 311 relative to the first slot 321 is extremely small. At this time, if the second shaft 312 is also located at the second inflection point 322b, it is easy to get stuck, causing the door body 200 to be unable to rotate relative to the box body 100, resulting in failure to open the door; when the first shaft 311 is located at the first inflection point 321b, the second shaft 312 moves from the third end point 322a toward the second inflection point 322b, and the second shaft 312 is away from the front wall 210, so that when the first shaft 311 changes its direction of movement in the first slot 321, the door body 200 can still move toward the side away from the pivot, thereby improving the flexibility of the door body 200 rotation and avoiding hitting the cabinet body 20 during the door opening process.

[0114] In some embodiments, when the second shaft 312 is located at the second inflection point 322b, the second shaft 312 changes its direction of movement at the second inflection point 322b, and changes from moving from the third endpoint 322a toward the second inflection point 322b to moving from the second inflection point 322b toward the fourth endpoint 322c. During this turning process, the displacement of the second shaft 312 relative to the second slot 322 is extremely small. At this time, if the first shaft 311 is also located at the first inflection point 321b, it is easy to get stuck, causing the door body 200 to be unable to rotate relative to the box body 100, resulting in failure to open the door; when the second shaft 312 is located at the second inflection point 322b, the first shaft 311 moves toward the second endpoint 321c, and the first shaft 311 is close to the front wall 210, so that when the second shaft 312 changes its direction of movement in the second slot 322, the door body 200 can still move toward the side away from the pivot, thereby improving the flexibility of the door body 200 rotation and avoiding hitting the cabinet body 20 during the door opening process.

[0115] In some embodiments, during the process of the door body 200 rotating to the maximum angle relative to the housing 100, after the first axis 311 passes the first inflection point 321b, the second axis 312 passes the second inflection point 322b. This prevents the first axis 311 and the second axis 312 from being at the inflection point at the same time, which could cause the door body 200 to get stuck or pause during the door opening process. This makes the door body 200 opening process smoother and improves the user experience. The first axis 311 is closer to the pivot side than the second axis 312. The first axis 311 passes the first inflection point 321b first, so that the first axis 311 is no longer away from the front wall 210. The second axis 312 has not reached the second inflection point 322b, and the second axis 312 continues to move away from the front wall 210, causing the door body 200 to rotate a larger angle relative to the housing 100 during this process.

[0116] See also Figure 12-14 In some embodiments, when the door body 200 is in a closed state, the distance A0 between the first axis 311 and the front wall 210 is 10 mm to 20 mm, and the distance B0 between the first axis 311 and the side wall 220 is 17 mm to 27 mm. The distance C0 between the second axis 312 and the front wall 210 is 6 mm to 16 mm, and the distance D0 between the second axis 312 and the side wall 220 is 30 mm to 40 mm.

[0117] Since, in the closed state of the door body 200, 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 smaller values, that is, the first axis 311 and the second axis 312 are compactly arranged. Since the first axis 311 slides in the first groove 321 and the second axis 312 slides in the second groove 322, the first groove 321 and the second groove 322 are also compactly arranged accordingly, thereby reducing the space occupied by the hinge assembly 300 and making the thickness of the door body 200 thinner, meeting the ultra-thin door requirements of the refrigeration equipment 10.

[0118] Specifically, the distance A0 between the first axis 311 and the front wall 210 can be 14mm, 16mm, 18mm, 20mm, or 22mm, the distance B0 between the first axis 311 and the side wall 220 can be 10mm, 12mm, 14mm, 16mm, or 18mm, the distance C0 between the second axis 312 and the front wall 210 can be 20mm, 22mm, 24mm, 26mm, or 28mm, and the distance D0 between the second axis 312 and the front wall 210 can be 23mm, 25mm, 27mm, 29mm, or 31mm.

[0119] It should be noted that the door body 200 may include a rear wall 230 opposite to the front wall 210, and a door seal 240 is provided on the rear wall 230. When the door body 200 is in the closed state, the door seal 240 is clamped between the rear wall 230 and the box body 100, thereby providing sealing and heat insulation. When the door body 200 is opened and closed, due to the elasticity of the door seal 240, the door body 200 may slightly squeeze the door seal 240, forming a negative closing angle of -1° to -5°. At the negative closing angle, the door body 200 and the opening 120 are more tightly sealed. Therefore, the state in which the door body 200 is in the closed state described herein may refer to a state in which the relative angle between the door body 200 and the box body 100 is 0°, or a state in which the door body 200 has a negative closing angle.

[0120] In some embodiments, when the door body 200 is in a closed state, a 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 is less than 10 mm.

[0121] By limiting the distance between the axis center of the first axis 311 and the axis center of the second axis 312 in the thickness direction of the door body 200, the spacing between the first axis 311 and the second axis 312 is constrained, thereby further making the layout of the first axis 311 and the second axis 312 compact and reducing the occupied space of the hinge assembly 300.

[0122] Specifically, the distance W0 between the axis center of the first axis 311 and the axis center of the second axis 312 in the thickness direction of the door body 200 can be 1 mm, 3 mm, 5 mm, 7 mm, or 9 mm.

[0123] In some embodiments, when the door body 200 is in a closed state, an angle α0 between a line connecting the axis centers of the first axis 311 and the second axis 312 and the front wall 210 is less than 35°.

[0124] The angle α0 between the axis line connecting the centers of the first axis 311 and the second axis 312 and the front wall 210 represents the distance W0 between the first axis 311 and the second axis 312 in the thickness direction of the door body 200. The smaller the angle α0 between the axis line connecting the centers of the first axis 311 and the second axis 312 and the front wall 210, the closer the distance W0 between the first axis 311 and the second axis 312 in the thickness direction of the door body 200 when the first axis 311 is located at the first end point 321a. Compared with the case where the first axis 311 and the second axis 312 are located in the middle position in the thickness direction of the door body 200, the closer the distance W0 between the first axis 311 and the second axis 312 and the front wall 210 is, so that the first axis 311 and the second axis 312 have more room to move during the door opening process, and the thickness of the door body 200 can be reduced when the hinge assembly 300 is arranged with the same door opening angle.

[0125] Specifically, when the door body 200 is in the closed state, the angle α0 between the line connecting the axis center of the first axis 311 and the axis center of the second axis 312 and the front wall 210 can be 25°, 30°, or 34°.

[0126] In some embodiments, when the door body 200 is in a closed state, there is a first distance B0 between the first axis 311 and the side wall 220, and when the relative angle between the door body 200 and the box body 100 is 90°, there is a second distance A2 between the first axis 311 and the front wall 210, and the difference between the first distance B0 and the second distance A2 is less than or equal to 2 mm.

[0127] The intrusion amount is the distance between the second edge 222 at the junction of the rear wall 230 and the side wall 220 and the side surface of the box body 100. It should be noted that the door body 200 may be provided with an arc chamfer, so that the rear wall 230 and the side wall 220 are connected by an arc surface. In this case, the intrusion amount can be the distance between the connecting edge of the arc surface and the rear wall 230 or the side wall 220 and the side surface of the box body 100, or the intrusion amount can also be the distance between the midpoint of the arc of the arc surface and the side surface of the box body 100. The door body 200 may be provided with a bevel chamfer, so that the rear wall 230 and the side wall 220 are connected by a bevel surface. In this case, the intrusion amount can be the distance between the connecting edge of the bevel surface and the rear wall 230 and the side surface of the box body 100, or the intrusion amount can also be the distance between the connecting edge of the bevel surface and the side wall 220 and the side surface of the box body 100.

[0128] A drawer is provided in the accommodating cavity 110 of the box body 100 to store items. When the user takes items, 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 provided in the space on the box body 100 that is not invaded by the door body 200. Since the width of the box body 100 is a fixed value, the greater the invasion amount, the smaller the width of the drawer, and thus the smaller the space that can accommodate items.

[0129] 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 of the box body 100. Therefore, at this time, the distance between the axis center of the first axis 311 and the side wall 220 is the distance between the axis center of the first axis 311 and the side of the box body 100, that is, the first distance B0; when the relative angle between the door body 200 and the box body 100 is 90°, the side wall 220 is rotated to be perpendicular to the side of the box body 100, and the front wall 210 is parallel to the box body 100. Because the first axis 311 and the box body 100 are relatively fixed, by calculating the difference between the second distance A2 between the axis center of the first axis 311 and the front wall 210 and the first distance B0, the vertical distance between the front wall 210 and the side of the box body 100 when the door body 200 is opened to 90° can be inferred. Since the thickness of the door body 200 is fixed, the intrusion amount of the door body 200 in the 90° state 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 intrusion amount of the door body 200 can be controlled within a very small range, thereby improving the user experience of the refrigeration device 10.

[0130] Specifically, the difference between the first distance and the second distance may be 0.5 mm, 1 mm, or 1.5 mm.

[0131] In some embodiments, when the door body 200 is opened from a closed state, the angle β0 between the tangent of the first axis 311 relative to the moving direction of the first slot 321 and the front wall 210 is less than 50°, and the angle γ0 between the tangent of the second axis 312 relative to the moving direction of the second slot 322 and the front wall 210 is less than 75°.

[0132] By setting the angle between the tangent of the moving direction and the front wall 210 to be smaller, the first axis 311 and the second axis 312 can slide as much as possible in the width direction of the door body 200, reducing the movement stroke of the first axis 311 and the second axis 312 in the thickness direction, and reducing the occupied space in the thickness direction of the door body 200. Therefore, the hinge assembly 300 capable of opening the door at a large angle can be arranged on the ultra-thin door body 200, thereby reducing the thickness of the door body 200.

[0133] Specifically, when the door body 200 is opened from a closed state, the angle β0 between the tangent of the first axis 311 relative to the moving direction of the first slot 321 and the front wall 210 can be 25°, 35°, or 45°, and the angle γ0 between the tangent of the second axis 312 relative to the moving direction of the second slot 322 and the front wall 210 can be 50°, 60°, or 70°.

[0134] In some embodiments, when the door body 200 is opened from a closed state, an angle θ0 between a tangent line of the first axis 311 relative to the moving direction of the first slot 321 and a tangent line of the second axis 312 relative to the moving direction of the second slot 322 is 15° to 50°.

[0135] By setting the angle θ0 between the active tangent of the first axis 311 and the active tangent of the second axis 312 to be smaller, the movement trajectory of the first axis 311 and the second axis 312 can be made more compact, so as to reduce the occupied space in the thickness direction of the door body 200, so that the hinge assembly 300 capable of opening the door at a large angle can be arranged on the ultra-thin door body 200, thereby reducing the thickness of the door body 200.

[0136] Specifically, when the body is opened from a closed state, the angle θ0 between the tangent of the first axis 311 relative to the moving direction of the first slot 321 and the tangent of the second axis 312 relative to the moving direction of the second slot 322 can be 20°, 25°, 30°, 35°, or 45°.

[0137] In some embodiments, when the door body 200 is in a closed state, a gap is formed between the first shaft 311 and an end of the first slot 321 , and a gap is formed between the second shaft 312 and an end of the second slot 322 .

[0138] In order to enable the door body 200 to form a negative closing angle of -1° to -5°, so as to avoid the ends of the first groove 321 and the second groove 322 limiting 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 a gap between the second shaft 312 and the end of the second groove 322, so that when the door body 200 is in a closed state, the first shaft 311 and the second shaft 312 can move in the corresponding gaps to ensure that the door body 200 has a certain negative closing angle, thereby ensuring the sealing of the door body 200 when it is closed.

[0139] In some embodiments, the distance between the box body 100 and the cabinet body 20 is 0 mm to 6 mm.

[0140] Since the maximum amount of the door body 200 exceeding the cabinet during the rotation process in the embodiment of the present application is only less than or equal to 1 mm, that is, the amount of the door body 200 exceeding the cabinet during the rotation process is small, the door body 200 is not easy to interfere with the cabinet body 20. Therefore, the distance between the cabinet body 100 and the cabinet body 20 can be set closer to improve space utilization and enhance the aesthetics of the installation of the refrigeration equipment 10.

[0141] Specifically, the distance between the box body 100 and the cabinet body 20 can be 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm.

[0142] In some embodiments, the thickness of the door body 200 is 30 mm to 50 mm.

[0143] Since the movement trajectories of the first shaft 311 and the second shaft 312 in the embodiment of the present application are relatively compact, and 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, that is, the movement space of the first shaft 311 and the second shaft 312 on the thickness 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 both relatively small, so that the thickness of the door body 200Y direction can be set thinner to improve the aesthetics and save space.

[0144] Specifically, the thickness of the door body 200 can be 32 mm, 34 mm, 38 mm, 42 mm, or 46 mm.

[0145] In some embodiments, the first hinge member 310 also 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 box body 100, the mounting portion 313b is located outside the box body 100, and the first axis 311 and the second axis 312 are fixedly arranged on the mounting portion 313b.

[0146] To facilitate connection of the first mounting member 313 to the housing 100, the first mounting member 313 may be a plate-like structure, wherein a portion of the first mounting member 313 overlaps and connects to the housing 100, while the remaining portion of the first mounting member 313 extends out of the housing 100. The portion of the first mounting member 313 that overlaps and connects to the housing 100 is the connecting portion 313a, and the portion of the first mounting member 313 that extends out of the housing 100 is the mounting portion 313b. Since the door 200 moves relative to the housing 100, the sliding fit between the first shaft 311 and the first slot 321, and between the second shaft 312 and the second slot 322, is located on the door 200. Since the first shaft 311 and the second shaft 312 are fixedly mounted on the mounting portion 313b, which is located outside the housing 100, the first shaft 311 and the second shaft 312 correspond to the first slot 321 and the second slot 322, respectively, on the door 200.

[0147] Specifically, the first mounting member 313 is disposed on the top surface of the housing 100, and the first shaft 311 and the second shaft 312 are disposed below the mounting portion 313b, so that the first shaft 311 and the second shaft 312 are respectively located in the first groove 321 and the second groove 322. The connecting portion 313a can be connected to the top surface of the housing 100 by any detachable means, such as screwing or snapping, without limitation.

[0148] In some embodiments, the second hinge member 320 further includes a second mounting member 323 , the first slot 321 and the second slot 322 are provided on the second mounting member 323 , the door body 200 is provided with a mounting slot 250 , and the second mounting member 323 is installed in the mounting slot 250 .

[0149] Because the second mounting member 323 needs to have a first groove 321 and a second groove 322, the second mounting member 323 can be a block-shaped structure with a certain thickness to facilitate slotting. Furthermore, to reduce the space occupied by the second mounting member 323 and enhance the overall appearance of the door body 200, the door body 200 is provided with a mounting groove 250. The second mounting member 323 is installed in the mounting groove 250. The second mounting member 323 can be flush with the opening 120 of the mounting groove 250. This ensures that the second mounting member 323 does not occupy additional space within the door body 200. Specifically, the mounting groove 250 is provided on the top wall of the door body 200, so that the second mounting member 323 is disposed at the upper end of the door body 200 to engage with the first hinge member 310.

[0150] See also Figures 15-19 In some embodiments, the side wall 220 intersects with the front wall 210 at the first edge 221. When the first edge 221 is in the first position, the distance A1 between the first axis 311 and the front wall 210 is 13 mm to 23 mm, and the distance B1 between the first axis 311 and the side wall 220 is 9 mm to 19 mm. The distance C1 between the second axis 312 and the front wall 210 is 19 mm to 29 mm, and the distance D1 between the second axis 312 and the side wall 220 is 22 mm to 32 mm. The first position indicates the position where the distance between the first edge 221 and the cabinet body 20 is the smallest.

[0151] The door body 200 further includes a rear wall 230 disposed opposite the front wall 210. The rear wall 230 is disposed toward the opening 120 of the cabinet 100. The rear wall 230 intersects with the side wall 220 at a second edge 222. During rotation of the door body 200 relative to the cabinet 100, the second edge 222 can move away from the cabinet 20, while the first edge 221 moves toward the cabinet 20. When the door body 200 rotates to a certain angle, the distance between the first edge 221 and the cabinet 20 is minimized, and the first edge 221 is now located in a first position. When the door body 200 continues to rotate past this angle, the first edge 221 moves away from the cabinet 20, while the second edge 222 moves toward the cabinet 20.

[0152] That is, the first edge 221 is located 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 box body 100 is 40° to 50°, the first edge 221 is located at the first position.

[0153] In the embodiment of the present application, since the first edge 221 is in the first position, 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 smaller values, that is, the movement trajectories of the first axis 311 and the second axis 312 are relatively compact. Since the first axis 311 slides in the first groove 321 and the second axis 312 slides in the second groove 322, the first groove 321 and the second groove 322 are also compactly arranged, thereby reducing the space occupied by the hinge assembly 300, so that the thickness of the door body 200 can be thinner, meeting the ultra-thin door requirements of the refrigeration equipment 10.

[0154] Specifically, the distance A1 between the first axis 311 and the front wall 210 can be 14mm, 16mm, 18mm, 20mm, or 22mm, the distance BA between the first axis 311 and the side wall 220 can be 10mm, 12mm, 14mm, 16mm, or 18mm, the distance C1 between the second axis 312 and the front wall 210 can be 20mm, 22mm, 24mm, 26mm, or 28mm, and the distance D1 between the second axis 312 and the front wall 210 can be 23mm, 25mm, 27mm, 29mm, or 31mm.

[0155] In some embodiments, when the first edge 221 is located at the first position, a distance L1 of the first edge 221 extending beyond the side surface of the box body 100 is less than or equal to 1 mm.

[0156] It is understood that the side surface of the box body 100 is the surface of the box body 100 on the side close to the cabinet body 20. When the door body 200 is in the closed state, the side wall 220 can be flush with the side surface of the box body 100, that is, the first edge 221 is aligned with the side surface of the box body 100. When the door body 200 is opened from the closed state, the first edge 221 will move toward the left relative to the box body 100, and when the door body 200 is opened to a certain angle, it will extend outward beyond the side surface of the box body 100, thereby posing a risk of interference with the cabinet body 20.

[0157] When the first edge 221 is in the first position, the distance between the first edge 221 and the cabinet body 20 is the smallest, that is, when the first edge 221 is in the position farthest from the side of the box body 100, in order to avoid the first edge 221 from contacting the cabinet body 20, it is limited to that when the first edge 221 is in the first position, the distance between the first edge 221 and the side of the box body 100 is less than or equal to 1 mm, that is, the maximum excess 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 body 20 is greater than 1 mm, the door body 200 can be opened smoothly, meeting the embedded installation requirements.

[0158] Specifically, when the first edge 221 is at the first position, the distance L1 between the first edge 221 and the side of the box body 100 can be 0.1mm, 0.3mm, 0.5mm, 0.7mm, 0.9mm or other values ​​less than 1mm, which are not specifically limited here.

[0159] In some embodiments, when the first edge 221 is located at the first position, a distance L2 between the first edge 221 and the cabinet 20 is greater than or equal to 1 mm.

[0160] 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 not likely to interfere with the cabinet 20 even when it extends the farthest from the side of the box 100.

[0161] Specifically, when the first edge 221 is located at the first position, the distance L2 between the first edge 221 and the cabinet 20 may be 1 mm, 1.5 mm, or 2 mm.

[0162] In some embodiments, when the first edge 221 is located at the first position, a distance W1 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 less than 12 mm.

[0163] When the door body 200 rotates to the point where the first edge 221 is in the first position, 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 shorter, that is, the movement trajectory of the first shaft 311 and the second shaft 312 is relatively compact, and a relatively short distance is always maintained between the first shaft 311 and 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 arrangement of the first groove 321 and the second groove 322 is also relatively compact. Therefore, while ensuring the rotation angle of the door body 200, the thickness of the door body 200 in the Y direction can be made thinner, meeting the ultra-thin door requirements of the refrigeration equipment 10.

[0164] Specifically, the distance W1 between the axis center of the first axis 311 and the axis center of the second axis 312 in the thickness direction of the door body 200 can be 4 mm, 5 mm, 7 mm, 9 mm, or 11 mm.

[0165] In some embodiments, when the first edge 221 is located at the first position, the angle α1 between the line connecting the axis of the first axis 311 and the axis of the second axis 312 and the front wall 210 is less than 35°.

[0166] The angle between the line connecting the centers of the first axis 311 and the second axis 312 and the front wall 210 represents the distance between the first axis 311 and the second axis 312 in the thickness direction of the door body 200. The smaller the angle between the line connecting the centers of the first axis 311 and the second axis 312 and the front wall 210, the closer the distance between the first axis 311 and the second axis 312 in the thickness direction of the door body 200 is when the first axis 311 is located at the first end point 321a. Compared with the case where the first axis 311 and the second axis 312 are located in the middle position in the thickness direction of the door body 200, the closer the distance between the first axis 311 and the second axis 312 and the front wall 210 is, so that the first axis 311 and the second axis 312 have more room to move during the door opening process, and the thickness of the door body 200 can be reduced when the hinge assembly 300 is arranged with the same door opening angle.

[0167] Specifically, when the first edge 221 is located at the first position, the angle α1 formed between the line connecting the axes of the first axis 311 and the second axis 312 and the front wall 210 may be 30°, 32°, or 34°.

[0168] In some embodiments, the rear wall 230 intersects with the side wall 220 at the second edge 222 . When the first edge 221 is located at the first position, a distance L3 between the second edge 222 and the box body 100 is greater than 10 mm.

[0169] It is understood that when the door 200 rotates to the point where the first edge 221 is in the first position, the second edge 222 moves away from the cabinet 20 while also moving closer to the cabinet 100. By limiting the distance between the second edge 222 and the cabinet 100 when the first edge 221 is in the first position, interference between the second edge 222 and the cabinet 100 can be avoided to a certain extent.

[0170] Specifically, when the first edge 221 is located at the first position, the distance L3 between the second edge 222 and the box body 100 can be 11 mm, 12 mm, 13 mm, 14 mm, or 15 mm.

[0171] See also Figure 20-23 In some embodiments, when the relative angle between the door body 200 and the box body 100 is 90°, the distance A2 between the first axis 311 and the front wall 210 is 12mm~22mm, the distance B2 between the first axis 311 and the side wall 220 is 7mm~17mm, the distance C2 between the second axis 312 and the front wall 210 is 25mm~35mm, and the distance D2 between the second axis 312 and the side wall 220 is 13mm~23mm.

[0172] When the relative angle between the door body 200 and the box body 100 is 90 degrees, the distance between the first axis 311 and the front wall 210, and the distance between the second axis 312 and the front wall 210 are limited to smaller values, which is conducive to reducing the movement distance of the first axis 311 and the second axis 312 in the thickness direction of the door body 200 during the process of the door body 200 rotating from the closed state to the relative angle of 90 degrees with the box body 100, which is conducive to meeting the design requirements of ultra-thin doors; the distance between the first axis 311 and the side wall 220, the second axis 312 and the front wall 210 are limited to smaller values, which is conducive to reducing the movement distance of the first axis 311 and the second axis 312 in the thickness direction of the door body 200 during the process of the door body 200 rotating from the closed state to the relative angle of 90 degrees with the box body 100, which is conducive to meeting the design requirements of ultra-thin doors; 2 and the side wall 220 is limited to a smaller value, so that the door body 200 can continue to open to the maximum angle without interfering with the withdrawal of the drawer; in addition, limiting the distance between the axis of the first axis 311 and the front wall 210 is conducive to reducing the distance that the door body 200 moves toward the box body 100 during the process of rotating from the closed state to the relative angle of 90° to the box body 100, reducing the probability of the door body 200 squeezing the box body 100, and facilitating the pulling out of the drawer inside the box body 100.

[0173] Specifically, when the relative angle between the door body 200 and the box body 100 is 90°, the distance A2 between the first axis 311 and the front wall 210 can be 13mm, 15mm, 17mm, 19mm, 21mm, and the distance between the first axis 311 and the side wall 220B2 can be 8mm, 10mm, 12mm, 14mm, 16mm; the distance C2 between the second axis 312 and the front wall 210 can be 26mm, 28mm, 30mm, 32mm, 34mm, and the distance D2 between the second axis 312 and the side wall 220 can be 14mm, 16mm, 18mm, 20mm, 22mm.

[0174] In some embodiments, when the relative angle between the door body 200 and the box body 100 is 90°, the inward displacement L4 of the door body 200 is less than or equal to 2 mm.

[0175] The inward displacement is the difference between the intrusion amount and the thickness of the door body 200. When the relative angle between the door body 200 and the housing 100 is 90°, the inward displacement is the distance between the front wall 210 and the side of the housing 100. The intrusion amount is the sum of the inward displacement of the door body 200 and the thickness of the door body 200. Because the thickness of the door body 200 is a fixed value, the embodiment of the present application limits the intrusion amount of the door body 200 to less than or equal to 2mm, thereby controlling the intrusion amount of the door body 200 within a smaller range and improving the user experience.

[0176] Specifically, when the relative angle between the door body 200 and the box body 100 is 90°, the inward displacement L4 of the door body 200 can be 0.5 mm, 1 mm, or 1.5 mm.

[0177] In some embodiments, when the relative angle between the door body 200 and the box body 100 is 90°, the angle α2 between the line connecting the axis centers of the first axis 311 and the second axis 312 and the front wall 210 is less than 70°.

[0178] The angle between the axis line connecting the centers of the first axis 311 and the second axis 312 and the front wall 210 represents the distance between the first axis 311 and the second axis 312 in the thickness direction of the door body 200. The smaller the angle between the axis line connecting the centers of the first axis 311 and the second axis 312 and the front wall 210, the closer the distance between the first axis 311 and the second axis 312 in the thickness direction of the door body 200 is when the first axis 311 is located at the first end point 321a. Compared with the case where the first axis 311 and the second axis 312 are located in the middle position in the thickness direction of the door body 200, the closer the distance between the first axis 311 and the second axis 312 and the front wall 210 is, so that the first axis 311 and the second axis 312 have more room to move during the door opening process, and the thickness of the door body 200 can be reduced when the hinge assembly 300 is arranged with the same door opening angle.

[0179] Specifically, when the relative angle between the door body 200 and the box body 100 is 90°, the angle α2 between the line connecting the axis center of the first axis 311 and the axis center of the second axis 312 and the front wall 210 can be 50°, 55°, 60°, 65°, or 68°.

[0180] In some embodiments, when the relative angle between the door body 200 and the box body 100 is 90°, the distance W2 between the axis center of the first axis 311 and the axis center of the second axis 312 in the thickness direction of the door body 200 is 7 mm to 19 mm.

[0181] By limiting the distance between the axis center of the first axis 311 and the axis center of the second axis 312 in the thickness direction of the door body 200 when the relative angle between the door body 200 and the box body 100 is 90°, the spacing between the first axis 311 and the second axis 312 is constrained, the layout of the first axis 311 and the second axis 312 is made compact, the occupied space is reduced, and the thickness of the door body 200 is reduced.

[0182] Specifically, when the relative angle between the door body 200 and the box body 100 is 90°, the distance W2 between the axis center of the first axis 311 and the axis center of the second axis 312 in the thickness direction of the door body 200 can be 8 mm, 10 mm, 12 mm, 14 mm, or 16 mm.

[0183] In some embodiments, when the relative angle between the door 200 and the box 100 is 90°, the distance L5 between the door 200 and the box 100 is 20 mm to 30 mm.

[0184] When the relative angle between the door body 200 and the box body 100 is 90°, the side wall 220 is arranged parallel to the opening 120 of the box body 100. Therefore, the distance between the door body 200 and the box body 100 is the vertical distance between the side wall 220 and the plane where the opening 120 of the box body 100 is located. Since the door body 200 and the box body 100 are connected by 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 box body 100 is too far, it will lead to an unstable connection between the door body 200 and the box body 100. Therefore, the distance between the door body 200 and the box body 100 is limited to make the connection more stable.

[0185] Specifically, when the relative angle between the door body 200 and the box body 100 is 90°, the distance L5 between the door body 200 and the box body 100 can be 21 mm, 23 mm, 25 mm, 27 mm, or 29 mm.

[0186] In some embodiments, the intrusion amount H1 when the relative angle between the door body 200 and the box body 100 is 90° is greater than the intrusion amount H2 when the relative angle between the door body 200 and the box body 100 is the largest.

[0187] A drawer is provided in the accommodating cavity 110 of the box body 100 to store items. When the user takes out the items, 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 provided in the space on the box body 100 that is not invaded by the door body 200. Since the width of the box body 100 is a fixed value, the greater the invasion amount, the smaller the width of the drawer, and thus the smaller the space that can accommodate items. The user can fully pull out the drawer within the range of the rotation angle of the door body 200 from 90° to the maximum angle. Since H2 is less than H1, in order to set the width of the drawer wider, the invasion amount H2 when the relative angle between the door body 200 and the box body 100 is the maximum is used as a reference to set the width of the drawer. The width setting range of the drawer is the width of the box body 100 minus H2. When you need to take out items, open the door body 200 to the maximum angle and you can pull out the drawer normally.

[0188] In some embodiments, when the first axis 311 is at the first end position and the second axis 312 is at the second end position, the distance L6 between the first edge 221 and the box body 100 is 20 mm to 30 mm.

[0189] Since the door body 200 and the box body 100 are connected by the sliding fit between the first axis 311 and the first groove 321, and the second axis 312 and the second groove 322, that is, a dynamic connection, if the distance between the door body 200 and the box body 100 is too far, it will cause the connection between the door body 200 and the box body 100 to be unstable. Therefore, the distance between the door body 200 and the box body 100 is limited to make the connection more stable.

[0190] Specifically, when the first shaft 311 is located at the first end position and the second shaft 312 is located at the second end position, the distance L6 between the door body 200 and the box body 100 can be 21 mm, 23 mm, 25 mm, 27 mm, or 29 mm.

[0191] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0192] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0193] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A refrigeration device, characterized in that: include: A box body and a door body, wherein the door body is arranged at the opening of the box body, and the door body comprises side walls and a front wall arranged at an angle; The hinge assembly includes a first hinge member and a second hinge member, the first hinge member is mounted on the box body, the second hinge member is mounted on the door body, a first shaft and a second shaft are fixedly provided on the first hinge member, the second hinge member includes a first slot and a second slot, the first shaft is slidably engaged with the first slot, and the second shaft is slidably engaged with the second slot, and when the door body is opened from a closed state to a maximum angle, the first shaft slides in the first slot, and the second shaft slides in the second slot; During the process of the door body being 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 and approaches the side wall to form a first track, and then moves close to the front wall and approaches the side wall to form a second track; the second shaft can slide relative to the second slot, so that the second shaft moves away from the front wall and approaches the side wall to form a third track, and then moves close to the front wall and approaches the side wall to form a fourth track; Among them, when the first axis is at the first end position, the distance between the first axis and the front wall is 7mm~17mm, and the distance between the first axis and the side is 4.5mm~14.5mm; when the second axis is at the second end position, the distance between the second axis and the front wall is 21mm~31mm, and the distance between the second axis and the side is 4mm~14mm.

2. The refrigeration equipment according to claim 1, characterized in that When the first shaft is located at the first end position and the second shaft is located at the second end position, the angle between the line connecting the axis centers of the first shaft and the second shaft and the front wall is less than 85°.

3. The refrigeration equipment according to claim 1, characterized in that When the door body is opened from the closed state to the third angle, the first shaft moves in an arc along the first trajectory, and the second shaft moves in an arc along the third trajectory.

4. The refrigeration equipment according to claim 2, characterized in that The door body is provided with a door seal that cooperates with the opening, and there is a gap between the door seal and the side wall of the door body. In the process of the door body opening from a closed state to a third angle, the instantaneous center of the first axis and the second axis is located in the plane where the side of the door seal is located.

5. The refrigeration equipment according to claim 2, characterized in that: The door body is provided with a door seal that cooperates with the opening, and there is a gap between the door seal and the side wall of the door body. In the process of the door body opening from a closed state to a third angle, the instantaneous center of the first axis and the second axis is located outside the plane where the side of the door seal is located.

6. The refrigeration equipment according to claim 5, characterized in that During the process of the door body being opened from the closed state to the third angle, the distance between the instantaneous centers of the first axis and the second axis and the plane where the side wall of the door seal is located is less than 10 mm.

7. The refrigeration equipment according to any one of claims 1 to 6, characterized in that: When the door body is opened from the third angle to the fourth angle, the first axis first moves in an arc along the first trajectory and then moves in an arc along the second trajectory, and the second axis moves in an arc along the third trajectory.

8. The refrigeration equipment according to any one of claims 1 to 6, characterized in that: When the door body is opened from the fourth angle to the fifth angle, the first axis performs circular motion along the second track, and the second axis first performs circular motion along the third track and then performs linear motion along the fourth track.

9. The refrigeration equipment according to any one of claims 1 to 6, characterized in that: During the process of the door body opening from the fifth angle to the maximum angle, the first shaft rotates around a fixed axis, and the second shaft rotates around the first axis.

10. The refrigeration equipment according to any one of claims 1 to 6, characterized in that: The thickness of the door body is 30 mm to 50 mm.

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