Door body assembly for built-in refrigeration device, and refrigeration device

Abstract

The present application relates to the technical field of household appliances and provides a door body assembly for a built-in refrigeration device and a refrigeration device. The door body assembly comprises: an enclosure door, which is rotatably connected to a refrigeration enclosure body, the refrigeration enclosure body being built into an accommodating space formed by an installation body, the distance between the center of a hinge axis of the enclosure door and an opening of the accommodating space being t, and the distance between the center of the hinge axis and an end face of the hinge side of the enclosure door being l3; a sliding mechanism; a door panel, which is movably mounted on the enclosure door by means of the sliding mechanism, the door panel being able to move in the width direction of the enclosure door, and the movement distance being d; and a traction mechanism, the traction mechanism being connected to the sliding mechanism, and during opening or closing of the enclosure door, the traction mechanism driving the sliding mechanism to move, so as to drive the door panel to move relative to the enclosure door; the maximum door angle that the door body assembly opens is 90°-135°, the minimum value of the movement distance d of the door panel is 14.15-109.108 mm, and the maximum angle that the door opens has a positive correlation with the minimum value of the movement distance d.

Description

Door assembly of embedded refrigeration equipment and refrigeration equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202323218961.3, filed on November 27, 2023, entitled “A refrigerator hinge”; Chinese patent application No. 202410088590.1, filed on January 22, 2024, entitled “Door assembly and refrigeration equipment”; and Chinese patent application No. 202422090015.3, filed on August 26, 2024, entitled “Door assembly and refrigeration equipment for embedded refrigeration equipment”, all of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of household appliances, and in particular to a door assembly of an embedded refrigeration device and a refrigeration device. Background Art

[0004] With the growing demand for the integration of home appliances and home furnishings, embedded design of home appliances has become a trend.

[0005] However, to achieve a more integrated home experience, it's sometimes necessary to attach a door panel to the cabinet door surface, while also requiring a tighter clearance between the built-in appliance and the cabinet sidewalls to further enhance the home integration. This results in the door assembly with the door panel interfering with the sidewalls of the cabinet's mounting space when the appliance is embedded in the cabinet, using existing hinge technology. This can prevent the appliance door assembly from opening or closing properly. Summary of the Invention

[0006] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a door assembly for an embedded refrigeration appliance and a refrigeration appliance to address the problem that a door assembly with a door panel may interfere with the side of the installation space during the door opening and closing process, resulting in the door assembly of the appliance being unable to open or close normally.

[0007] The door assembly of the embedded refrigeration device according to an embodiment of the present application includes:

[0008] a door rotatably connected to the refrigeration box, wherein the refrigeration box is embedded in the accommodation space formed by the mounting body, wherein the distance between the hinge axis of the door and the opening of the accommodation space is t, and the distance between the hinge axis and the end surface of the door on the hinge side is l3;

[0009] Sliding mechanism;

[0010] A door panel is movably mounted on the door via the sliding mechanism, and the door panel can move along the width direction of the door, with a moving distance d;

[0011] a traction mechanism connected to the sliding mechanism, wherein when the door is opened or closed, the traction mechanism drives the sliding mechanism to move, thereby causing the door panel to move relative to the door;

[0012] The maximum door opening angle of the door body assembly is 90°-135°, the minimum value of the moving distance d of the door panel is between 14.15 mm and 109.108 mm, and the maximum door opening angle and the minimum value of the moving distance d are positively correlated.

[0013] According to an embodiment of the present application, when the maximum door opening angle is 90°-135° and the corresponding minimum value of the moving distance d is between 14.15 mm and 109.108 mm, it can be ensured that the door panels do not interfere with each other, and the minimum value of the moving distance can be used as a design reference standard for the sliding mechanism to ensure that the obtained door body assembly can enhance the user experience.

[0014] In one embodiment, the thickness of the door panel is 12 mm to 25 mm, and the thickness of the box door is 20 mm to 60 mm.

[0015] In one embodiment, when the door panel is at the maximum opening angle, the safety gap between its interference position and the panel of the installation body is 1 mm-5 mm, the assembly gap between the door panel and the box door is 1 mm-10 mm, and the gap from the box door to the refrigeration box body is 3 mm-15 mm.

[0016] In one embodiment, after the interference position leaves the accommodation space, the movement distance d of the door panel and the maximum door opening angle Δθ of the door assembly satisfy:

[0017] Among them, A is the safety gap between the interference position of the door panel and the panel of the installation body at the maximum door opening angle, B is the assembly gap between the door panel and the box door, C is the gap between the box door and the refrigeration box body, D1 is the thickness of the door panel, D2 is the thickness of the box door, and E is the distance from the innermost corner of the box door to the refrigeration box body at the maximum door opening angle.

[0018] In one embodiment, the sliding mechanism comprises:

[0019] A first base having a first guide rail formed on one side and a second guide rail formed on the other side;

[0020] a first slider slidably disposed on the first guide rail, wherein the traction mechanism is rotatably connected between the box and the first slider;

[0021] a second slider, slidably disposed on the second guide rail and configured to be connected to the door panel;

[0022] a flexible cable, with both ends connected to the first slider and the second slider respectively;

[0023] When the first slider moves on the first guide rail, the first slider drives the second slider to move in the opposite direction on the second guide rail through the flexible cable, so as to drive the door panel to move relative to the width direction of the box door.

[0024] In one embodiment, the flexible cable comprises:

[0025] a first flexible cable, passing around one end of the first base, with both ends connected to one end of the first slider and one end of the second slider respectively;

[0026] The second flexible cable passes around the other end of the first base, and both ends are connected to the other ends of the first slider and the second slider respectively.

[0027] In one embodiment, the traction mechanism includes a traction rod, a first rotation shaft fixing seat, and a second rotation shaft fixing seat;

[0028] The first rotating shaft fixing seat is connected to the first sliding block, the second rotating shaft fixing seat is used to be connected to the box body, one end of the traction rod is rotatably connected to the first rotating shaft fixing seat, and the other end of the traction rod is rotatably connected to the second rotating shaft fixing seat.

[0029] In one embodiment, the sliding mechanism comprises:

[0030] A guide member and a sliding member, wherein the guide member is provided on the box door and has a guiding structure, and the sliding member is provided on the door panel and is movably provided on the guide member along the width direction of the box door;

[0031] a connecting rod assembly movably disposed on the guide structure and capable of structural deformation under the guidance of the guide structure, wherein the second end of the connecting rod assembly is movably connected to the sliding member;

[0032] A driving rod is provided on the box body and movably connected to the first end of the connecting rod assembly to drive the connecting rod assembly to undergo structural deformation during the opening and closing of the box door, and then the connecting rod assembly drives the sliding member to drive the door panel to move along the width direction.

[0033] In one embodiment, the connecting rod assembly comprises:

[0034] A first connecting rod and a second connecting rod, wherein the driving rod is rotatably connected to the first end of the first connecting rod, and the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod via a first hinge shaft; the first hinge shaft is provided on the guide structure and moves along the thickness direction of the door panel under the guidance of the guide structure; the second end of the second connecting rod is rotatably connected to the sliding member;

[0035] The driving rod is used to drive the first end of the first connecting rod to move along the width direction, and the first connecting rod is used to drive the first hinge shaft to move along the thickness direction to change the angle between the first connecting rod and the second connecting rod, and then the second connecting rod drives the sliding member to move in a direction opposite to the driving direction of the driving rod.

[0036] The refrigeration device according to an embodiment of the present application includes:

[0037] The box body forms a storage space;

[0038] The door assembly is rotatably connected to the box body and is suitable for opening or closing the storage space.

[0039] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] FIG1 is a schematic diagram of the installation of a door assembly of an embedded refrigeration device provided in an embodiment of the present application.

[0042] FIG2 is a partial enlarged schematic diagram of FIG1 .

[0043] FIG3 is a schematic diagram of a refrigeration device provided in an embodiment of the present application with its door opened outward;

[0044] FIG4 is an exploded view of a refrigeration device provided in an embodiment of the present application;

[0045] FIG5 is a schematic diagram of a sliding door mechanism according to an embodiment of the present application;

[0046] FIG6 is a second schematic diagram of the sliding door mechanism provided in an embodiment of the present application;

[0047] FIG7 is an exploded view of a sliding door mechanism provided in an embodiment of the present application;

[0048] FIG8 is a schematic structural diagram of a sliding mechanism provided in an embodiment of the present application;

[0049] FIG9 is a schematic structural diagram of a guide member provided in an embodiment of the present application;

[0050] FIG10 is a schematic diagram of the structure of a sliding member provided in an embodiment of the present application; FIG11 is a schematic diagram of a first driven guide rail mechanism provided in an embodiment of the present application;

[0051] FIG12 is a second schematic diagram of the first driven guide rail mechanism provided in an embodiment of the present application;

[0052] FIG13 is a schematic diagram of a second driven guide rail mechanism according to an embodiment of the present application;

[0053] FIG14 is a second schematic diagram of the second driven guide rail mechanism provided in an embodiment of the present application;

[0054] FIG15 is a schematic diagram of a door panel provided in an embodiment of the present application;

[0055] FIG16 is a schematic diagram of a first hook and a second hook provided in an embodiment of the present application;

[0056] FIG17 is a schematic diagram of a door, a first end cover, and a second end cover provided in an embodiment of the present application;

[0057] FIG18 is a schematic diagram of the assembly of the door, the first end cover, the second end cover, the sliding door mechanism, the driven guide rail mechanism, and the hinges according to an embodiment of the present application;

[0058] FIG19 is a schematic diagram of a first end cap provided in an embodiment of the present application;

[0059] FIG20 is a schematic diagram of a second end cap provided in an embodiment of the present application;

[0060] FIG21 is a schematic diagram of a cabinet door when a door panel needs to be installed, provided in an embodiment of the present application;

[0061] FIG22 is a schematic diagram of a cabinet door provided in an embodiment of the present application without the need to install a door panel;

[0062] FIG23 is a schematic diagram of a first primary decorative cover according to an embodiment of the present application;

[0063] FIG24 is a second schematic diagram of the first main decorative cover provided in an embodiment of the present application;

[0064] FIG25 is a schematic diagram of a first decorative cover provided in an embodiment of the present application;

[0065] FIG26 is a schematic diagram of a second primary decorative cover according to an embodiment of the present application;

[0066] FIG27 is a second schematic diagram of the second main decorative cover provided in an embodiment of the present application;

[0067] FIG28 is a schematic diagram of a second decorative cover provided in an embodiment of the present application;

[0068] FIG29 is a schematic diagram of a third end cap provided in an embodiment of the present application;

[0069] FIG30 is a schematic diagram of a fourth end cap provided in an embodiment of the present application;

[0070] FIG31 is a schematic diagram of a third primary decorative cover according to an embodiment of the present application;

[0071] FIG32 is a second schematic diagram of the third main decorative cover provided in an embodiment of the present application;

[0072] FIG33 is a schematic diagram of a third decorative cover provided in an embodiment of the present application;

[0073] FIG34 is a schematic diagram of a fourth primary decorative cover according to an embodiment of the present application;

[0074] FIG35 is a second schematic diagram of the fourth primary decorative cover provided in an embodiment of the present application;

[0075] FIG36 is a schematic diagram of the fourth decorative cover provided in an embodiment of the present application.

[0076] Reference Signs: 1. Box body; 110. First connecting hole; 120. First beam; 121. Second connecting hole; 130. Second beam; 131. Fourth connecting hole; 132. Third connecting hole; 2. Box door; 210. First end cover; 211. First hinge hole; 212. Third mounting groove; 213. First mounting groove; 214. First avoidance opening; 215. Second avoidance opening; 216. First mounting hole; 217. First ridge; 218. Third groove; 219. Fourth groove; 220. Second end cover; 221. First guide rail fixing seat; 223. Second mounting hole; 224. Third mounting hole; 225. Second ridge; 227. Third ridge; 310, third end cap; 311, second guide rail fixing seat; 313, eighth ridge; 314, second hinge hole; 315, fourth mounting hole; 316, hand grip slot; 320, fourth end cap; 321, fourth clearance; 322, third clearance; 323, fifth mounting slot; 324, sixth mounting slot; 325, fifth mounting hole; 327, ninth ridge; 4, first hinge; 5, second hinge; 6, third hinge; 7. Sliding door mechanism; 701. First fixed seat; 702. Second fixed seat; 703. Second adjusting member; 704. First adjusting member; 705. First bearing; 706. Flexible cable; 707. First rotating shaft fixed seat; 708. Pin; 709. Drawbar; 710. Second rotating shaft fixed seat; 711. Connector; 712. First connecting block; 713. Second slider; 714. First slider; 715. Third bearing; 716. Second bearing; 717. First base; 730. Guide member; 731. Guide structure; 732. Fixed plate; 733. Slide groove; 734. Sliding sleeve; 7311. First limiting groove; 7312. Second limiting groove; 740. Sliding member; 741. Guide rod; 742. Sliding block; 743. First connecting arm; 744. Second connecting arm; 745. Sliding contact; 760, driving rod; 770, elastic member; 750, connecting rod assembly; 751, first connecting rod; 752, second connecting rod; 753, first hinge axis; 754, second hinge axis; 755, third hinge axis; 8, first driven guide rail mechanism; 801, third fixed seat; 802, fourth fixed seat; 803, fourth adjusting member; 804, third adjusting member; 812, second connecting block; 813, third slider; 817, second base; 9, second driven guide rail mechanism; 901, fifth fixed seat; 902, third base; 903, fourth slider; 904, sixth fixed seat; 905, third connecting block; 13. First main decorative cover; 1301. Fifth notch; 1302. Fourth notch; 1303. First notch; 1304. Second notch; 1305. First slot; 1306. Second rib; 1307. First rib; 14. Second main decorative cover; 1401. Third notch;1403, fourth ridge; 1404, sixth ridge; 1405, second slot; 1406, third slot; 1407, seventh ridge; 1408, fifth ridge; 15, third main decorative cover; 1501, sixth notch; 1503, fourth slot; 16, fourth main decorative cover; 1601, seventh notch; 1602, eighth notch; 1603, tenth notch; 1604, ninth notch; 1605, sixth slot; 1606, fifth slot; 17, first secondary decorative cover; 18, second secondary decorative cover; 1801, handle; 19, third secondary decorative cover; 20, fourth secondary decorative cover; 21, door panel; 2111, first hook; 2112, second hook; 60, cabinet. DETAILED DESCRIPTION

[0077] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0078] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0079] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0080] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0081] 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 embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0082] The door assembly and refrigeration equipment of the embedded refrigeration equipment of the present application are described below with reference to FIG. 1 to FIG. 36 .

[0083] In one embodiment of the present application, as shown in Figures 1 and 2, the present application provides a door assembly of an embedded refrigeration device, see Figure 1, comprising a door 2 and a door panel 21. The door 2 can be rotatably connected to the refrigeration body 1 to open or close the storage space inside the refrigeration body 1. The refrigeration body 1 is embedded in the accommodation space formed by the installation body. The installation body here generally refers to the cabinet 60. Of course, the installation body can also be a corner of the wall, or the installation body can also refer to other components, as long as a accommodation space can be formed. The following description takes the installation body as the cabinet 60 as an example. The door panel 21 is movably mounted on the door 2, and the door panel 21 can move along the width direction of the door 2; the door panel 21 is suitable for moving relative to the door 2 toward the door opening side of the door 2 during the opening process of the door 2.

[0084] According to an embodiment of the present application, the door panel 21 is installed on the door 2 by a sliding mechanism (referring to Figure 4, the sliding door mechanism 7 includes a sliding mechanism and a traction mechanism, wherein the sliding mechanism and the traction mechanism are not separately marked, the structure of the traction mechanism can refer to the traction rod 709 of Figure 5, and the sliding mechanism can refer to the first base 717, the first slider 714 and the second slider 713 of Figure 5), and the door panel 21 can move along the width direction of the door 2, and the movement distance is d. Specifically, the traction mechanism is connected to the sliding mechanism, and during the opening or closing process of the door 2, the traction mechanism drives the sliding mechanism to move, so as to drive the door panel 21 to move relative to the door 2. According to an embodiment of the present application, the maximum opening angle of the door body assembly is 90°-135°, and the movement distance d of the door panel is between 14.15 mm and 109.108 mm. Among them, the maximum opening angle and the minimum value of the movement distance d are positively correlated, that is, when the maximum opening angle is larger, the corresponding minimum value of the movement distance d is larger. For example, when the maximum door opening angle is 96°, the minimum value of the moving distance d is 15.233 mm to 66.616 mm; and when the maximum door opening angle is 135°, the minimum value of the required moving distance d is 67.883 mm to 109.108 mm.

[0085] According to an embodiment of the present application, when the maximum door opening angle is 90°-135° and the corresponding minimum value of the moving distance d is between 14.15 mm and 109.108 mm, it can be ensured that the door panels do not interfere with each other, and the minimum value of the moving distance can be used as a design reference standard for the sliding mechanism to ensure that the obtained door body assembly can enhance the user experience.

[0086] According to the embodiment of the present application, to meet the use requirements of the refrigeration equipment and to maintain a unified style between the refrigeration equipment and the installation body, with reference to Figure 2, the thickness D1 of the door panel is generally 12 mm to 25 mm, and the thickness D2 of the cabinet door is generally 20 mm to 60 mm. Of course, the numerical ranges here do not constitute a limitation of the embodiment of the present application.

[0087] According to an embodiment of the present application, in order to further ensure the safe use of the door body assembly, the door panel 21, at the maximum door opening angle, in conjunction with Figure 2, has a safety gap A between the interference position and the panel of the mounting body of 1 mm to 5 mm. The interference position refers to the position on the hinge side of the door panel 21 where interference is most likely to occur, corresponding to the outer corner of the hinge side of the door panel 21. Of course, the gap between the interference position and the panel of the mounting body can also be infinitely close to zero, thereby just ensuring that there is no interference between the interference position and the panel of the mounting body. The gap between the interference position and the panel of the mounting body is not limited by the examples given here. In addition, in order to facilitate the assembly of the door body assembly, the assembly gap B between the door panel and the box door can be 1 mm to 10 mm, and the gap C from the box door to the refrigeration box can be 3 mm to 15 mm. Similarly, the examples given here do not constitute a limitation to the door body assembly.

[0088] Based on the table below, safety clearance A can be set to 1 mm, 3 mm, or 4 mm; assembly clearance B can be set to 1 mm, 2 mm, 5.6 mm, or 10 mm; assembly clearance C can be set to 3 mm, 4 mm, 8 mm, 10.5 mm, or 10 mm; door panel thickness can be set to 12 mm, 18 mm, 20 mm, 21 mm, 22 mm, 23 mm, or 24 mm; and door thickness can be set to 20 mm, 23 mm, 33 mm, 38 mm, 40 mm, 45 mm, 47 mm, 52 mm, or 60 mm. At the maximum door opening angle, the distance from the bottom of door 2 to the refrigeration cabinet 1 can be set to 35.85 mm, 20 mm, or 30 mm. Based on this, different minimum travel distances can be obtained for different maximum door opening angles. Please refer to the table below.

[0089] Table 1

[0090] Table 2

[0091] Table 3

[0092] The data with a gray background in Table 2 above is the preferred data. Specifically, it corresponds to a safety clearance A of 3 mm, an assembly clearance B of 2 mm, a clearance C of 8 mm, a door panel thickness D1 of 18 mm, a door thickness D2 of 23 mm to 60 mm, a dimension E of 30 mm, and a maximum door opening angle of 96° to 135°. Accordingly, the value of L2 ranges from 24.133 mm to 67.883 mm.

[0093] According to one embodiment of the present application, in conjunction with Figure 2, when the door 2 is opened at an angle of ninety degrees, the moving distance is d1, and d1 is not less than the sum of the distance t and the distance l3, wherein t is the distance between the hinge axis of the door 2 and the opening of the storage space, and l3 is the vertical distance from the hinge axis 101 of the door 2 to the end face of the hinge side of the door panel 21. In the above case, that is, once the door 2 is opened at an angle of ninety degrees, the door panel 21 is completely outside the storage space, thereby obviously avoiding interference between the door panel 21 and the inner wall of the storage space. At this time, it is equivalent to the end face of the hinge side of the door panel 21 exceeding the mounting body, thereby also avoiding interference between the end face of the hinge side of the door panel 21 and the outer surface of the mounting body.

[0094] Based on the above, if the maximum door opening angle is greater than 90 degrees, to ensure that the door panel 21 does not interfere during the door assembly opening process, it is necessary to further ensure that dt-l3 is not less than the distance that the interference position of the door panel 21 moves toward the cabinet body along the depth direction of the storage space after 90 degrees. The depth direction of the storage space is perpendicular to the width direction of the door when the door is closed (as indicated by the arrow in Figure 1). Referring to Figure 2, the door panel 21 has an interference position c0, which is located at the outer corner of the hinge side of the door panel 21. "Outer" refers to the side facing away from the refrigeration cabinet 1, while the side facing the refrigeration cabinet 1 is the "inner" side. Since Figure 2 is a top view, the interference position c0 is a point in Figure 2. For the door assembly, the interference position is a vertical line. If the outer corner of the hinge side of the door panel 21 is arc-shaped, the interference position is the point on the arc segment farthest from the hinge axis 101 of the door 2.

[0095] According to an embodiment of the present application, the maximum door opening angle Δθ is between 90 degrees and 135 degrees, that is, 90°≤Δθ≤135°. At this door opening angle, all user access needs can be met, and the opened door panel 21 does not occupy an excessive amount of usable space. Of course, the maximum door opening angle Δθ can also have other values.

[0096] According to an embodiment of the present application, after the interference position leaves the accommodation space and aligns with the mounting body, the distance between the interference position and the panel of the mounting body is A, and A>0. In other words, when the interference position leaves the area corresponding to the accommodation space and moves toward the second panel 602 on the right side of the cabinet 60, to prevent interference, the distance A between the interference position and the outer surface of the second panel 602 is always greater than zero.

[0097] According to another embodiment of the present application, in combination with FIG2 , the moving distance d of the door panel 21 and the maximum opening angle Δθ of the door assembly satisfy: d=(A1+B+C+D1+D2-E) / sin(180-Δθ).

[0098] Among them, A1 is the safety gap between the door panel 21 and the corner corresponding to the interference position and the panel of the installation body at the maximum door opening angle, B is the assembly gap between the door panel 21 and the door 2, C is the gap between the door 2 and the refrigeration cabinet 1, D1 is the thickness of the door panel 21, D2 is the thickness of the door 2, and E is the distance from the innermost corner of the door 2 to the refrigeration cabinet 1 at the maximum door opening angle. A1, B, C, D1 and D2 are known, and the relationship between d and Δθ can be obtained. Among them, E can be directly a given design quantity, or E is L3 / sin(180-Δθ), where L3 is the distance between the axis of the slide hinge and the outer surface of the door. Note that l3 and L3 are different. l3 is marked in the figure, and L3 is perpendicular to l3.

[0099] In Figures 3 and 4, a sliding mechanism 4 is connected between the door panel 21 and the door 2. The sliding mechanism 4 is connected to a traction mechanism, and the traction mechanism drives the door panel 21 to move relative to the door 2. The sliding mechanism 4 includes a slide rail and a slider that moves along the slide rail (the structure of the sliding mechanism 4 is described below with examples).

[0100] Among them, when the traction mechanism is a connecting rod mechanism, if the transmission ratio of the connecting rod mechanism is 1:1, the movement distance L2 of the hinge axis connecting the connecting rod mechanism and the traction mechanism is the movement distance d of the door panel 21 relative to the box door 2.

[0101] In Figure 2, assuming that when the door assembly is in the closed position, the maximum distance between the end face of the hinge side of the refrigeration box body 1 and the hinge axis is L, that is, the maximum distance between the end face of the hinge side of the door panel 21 and the hinge axis is L; when the door is opened at the maximum angle, the distance between the end face of the hinge side of the refrigeration box body 1 and the hinge axis is L1, where L1 is the designed amount, and the displacement of the hinge axis of the refrigerator door 2 from opening to the maximum door opening angle is L2 (maximum slip amount).

[0102] L2=d=(A1+B+C+D1+D2-E) / sin(180-Δθ), and then, when other parameters are determined, the relationship between the maximum door opening angle Δθ and L2 can be obtained.

[0103] According to an embodiment of the present application, the difference between A1 and A can be ignored, and A1 in the formula can be replaced with A, where A is the safety gap between the interference position of the door panel 21 and the panel of the mounting body at the maximum door opening angle. Obviously, A1 = A + D1 × cos (180 - Δθ). As long as A falls within a certain range, L2 calculated based on L2 = d = (A + B + C + D1 + D2 - E) / sin (180 - Δθ) can meet the requirement. For example, if A is between 1 and 5 mm, the calculated movement distance L2 can meet the non-interference requirement.

[0104] Similarly, the above formula for d and the maximum door opening angle Δθ of the door assembly is not limiting; for example, the above formula may also include a correction factor or correction parameter. Furthermore, the above formula is based on the hinge axis 101 of the door 2. If the door 2 is installed using a biaxial hinge or a movable hinge, the hinge axis 101 will change as the door 2 opens, and the formula will need to account for the movement of the hinge axis 101.

[0105] According to an embodiment of the present application, the sliding door mechanism 7 includes a sliding mechanism and a traction mechanism.

[0106] According to one embodiment of the present application, referring to Figures 4 and 5, the sliding mechanism includes: a first base 717, a first slider 714, a second slider 713 and a flexible cable 706. A first guide rail is formed on one side of the first base 717, and a second guide rail is formed on the other side. The first slider 714 is slidably arranged on the first guide rail, and the traction mechanism is rotatably connected between the box body 1 and the first slider 717. The second slider 713 is slidably arranged on the second guide rail for connecting to the door panel 21. The two ends of the flexible cable 706 are respectively connected to the first slider 714 and the second slider 713. When the first slider 714 moves on the first guide rail, the first slider 714 drives the second slider 713 to move in the opposite direction on the second guide rail through the flexible cable 706, so as to drive the door panel 21 to move relative to the width direction of the box door 2.

[0107] The sliding mechanism of this embodiment can be arranged on the box door 2, and one of the first slider 714 and the second slider 713 is transmission-connected to the box door 2 or the box body 1, and the other is slidingly connected to the door panel 21 arranged on the outside of the box door 2, so that when the box door 2 rotates, the first slider 714 and the second slider 713 slide relative to each other to drive the door panel 21 to slide relative to the box door 2, so that the door panel 21 can avoid obstacles on both sides during the process of turning the box door 2 open and close.

[0108] Specifically, taking the example of a first slider 714 connected to the housing 1 via a traction mechanism and a second slider 713 connected to the door panel 21, the first base 717 of this embodiment can be disposed on the door 2. The ends of the flexible cable 706 are respectively connected to the first slider 714 and the second slider 713, so that the first slider 714 can pull the second slider 713 to move synchronously via the flexible cable 706, thereby driving the door panel 21 to slide relative to the door 2.

[0109] By properly setting the extension direction of the flexible cable 706 , the first slider 714 and the second slider 713 move in opposite directions during movement, thereby driving the door panel 21 to avoid obstacles.

[0110] For example, when the door 2 is rotated to open outside the housing 1, the door 1 drives the first slider 714 to slide toward the first hinge 4 via the traction mechanism. Simultaneously, the first slider 714 drives the second slider 713 to slide in the opposite direction (i.e., away from the first hinge 4) via the flexible cable 706, thereby preventing the door panel 21 from interfering with an obstacle outside. When the door 2 is rotated to close toward the housing 1, the housing 1 drives the first slider 714 to slide away from the first hinge 4. Simultaneously, the first slider 714 drives the second slider 713 to slide in the opposite direction (i.e., toward the first hinge 4) via the flexible cable 706, thereby preventing the door panel 21 from interfering with an obstacle after closing.

[0111] The first slider 714 can also be connected to the door panel 21. Correspondingly, the second slider 713 is connected to the box door 2 or the box body 1 through a traction mechanism. The working process is the same as that of the above embodiment and will not be repeated here.

[0112] According to the sliding mechanism of the present application, a first guide rail and a second guide rail are arranged on both sides of the first base 717, and a first slider 714 and a second slider 713 are slidably arranged on the first guide rail and the second guide rail respectively. The first slider 714 and the second slider 713 can slide synchronously along the guide rails under the transmission of the flexible rope 706, and the sliding directions are opposite. One of the first slider 714 and the second slider 713 is connected to the box door 2 or the box body 1 through a traction mechanism, and the other is connected to the door panel 21 arranged on the outside of the box door 2, so that when the box door 2 rotates, the two sliders slide relative to each other to drive the door panel 21 to slide relative to the box door 2, so that the door panel 21 can avoid obstacles on both sides during the process of turning the box door 2 on and off.

[0113] In practical applications, the designs of the first slider 714 and the second slider 713 can be flexible and adaptable to different working scenarios and performance requirements. They are not limited to specific shapes, sizes or materials, but can be customized and optimized according to specific needs.

[0114] From a material perspective, the first slider 714 and the second slider 713 can be made of materials with high wear resistance, low friction coefficient, and good stability, such as metal alloys, engineering plastics, or special lubricating materials. These materials are selected to improve the durability of the sliders, reduce wear and noise during sliding, and ensure smooth sliding.

[0115] In terms of structural design, the first and second sliders 714, 713 can utilize various guide rail contact surfaces, such as flat contact, ball contact, or sliding bearing contact. Each of these contact methods has its own advantages and disadvantages. For example, ball contact reduces friction and wear, but is more expensive; flat contact, on the other hand, offers a simpler structure but may require more frequent lubrication and maintenance. Therefore, the selection process should comprehensively consider factors such as usage conditions, cost-effectiveness, and ease of maintenance.

[0116] Furthermore, to enhance the load-bearing capacity and stability of the sliders, reinforcing ribs, support plates, or other auxiliary structures may be added to the first slider 714 and the second slider 713. These structures can increase the rigidity and deformation resistance of the sliders, ensuring stable sliding performance when bearing the weight of the door panel 21 and external forces.

[0117] In this embodiment, the first guide rail and the second guide rail are arranged in sequence along the width direction of the first base 717, and the first guide rail and the second guide rail are arranged parallel to the width direction of the first base 717. While ensuring that the length of the first guide rail and the second guide rail can meet the sliding distance of the first slider 714 and the second slider 713, the dimensions of the first base 717 in the height direction and the thickness direction can be effectively reduced, and the structure is more compact and occupies less space.

[0118] In actual applications, due to factors such as machine tool accuracy, tool wear, and material unevenness, there will be certain errors in the processing of the first guide rail, the second guide rail, and the base. These errors may include dimensional errors (such as deviations in length, width, and height), shape errors (such as straightness, flatness, roundness, etc.), and position errors (such as coaxiality, parallelism, and perpendicularity). The parallelism between the first and second guide rails is evaluated by measuring the relative position deviation between them. This deviation needs to be controlled within a certain tolerance range to ensure smooth sliding of the slider and stable operation of the system. This tolerance range is usually determined based on design requirements, usage environment, and system accuracy.

[0119] In this embodiment, parallelism and verticality should not be strictly defined in a geometric sense. At least the manufacturing and installation errors should be considered, and the error of plus or minus 10° should be understood as within the scope of protection of the patent.

[0120] In one embodiment of the present application, as shown in FIG5 , the flexible cable 706 includes a first flexible cable and a second flexible cable. The first flexible cable passes around one end of the first base 717 and is connected to one end of the first slider 714 and the second slider 713 at both ends. The second flexible cable passes around the other end of the first base 717 and is connected to the other end of the first slider 714 and the second slider 713 at both ends.

[0121] In this embodiment, one end of the first flexible cable is passed around the first base 717 and connected to the first slider 714 and the second slider 713 respectively. When the first slider 714 slides in the direction away from the end of the first base 717 under the drive of the box door 2 or the box body 1 through the traction mechanism, the first slider 714 drives the second slider 713 to slide in the direction close to the end of the first base 717 through the first flexible cable. At the same time, the other end of the second flexible cable is passed around the first base 717 and connected to the first slider 714 and the second slider 713 respectively. When a slider 714 slides toward the other end away from the first base 717 under the drive of the box door 2, the first slider 714 drives the second slider 713 to slide toward the other end close to the first base 717 through the second flexible rope, thereby achieving that when the first slider 714 slides toward both ends of the first base 717 respectively, it can drive the second slider 713 and the first slider 714 to slide in the opposite direction, thereby enabling the door panel 21 to slide relative to the box door 2 as the box door 2 rotates when the box door 2 is opened and closed, so as to avoid interference with obstacles and affecting the opening and closing of the box door 2.

[0122] Flexible rope 706 can be made of steel wire rope, steel strand, or hemp rope. The choice depends on the load, operating environment, and intended use. For applications requiring heavy loads and harsh environments, steel wire rope or steel strand is recommended; for applications with lighter loads and milder environments, hemp rope can be considered. While meeting the intended use, consider the cost differences between different materials and choose the most cost-effective one. Furthermore, steel wire rope and steel strand may require regular inspection and maintenance during use to ensure performance and safety; hemp rope, on the other hand, is relatively easy to replace and maintain.

[0123] Specifically, the second slider 713 and the first slider 714 are both provided with a connector 711 for fixing the flexible cable 706 .

[0124] In one embodiment of the present application, as shown in Figure 5, the sliding mechanism also includes: a first fixed seat 701 and a second fixed seat 702, the first fixed seat 701 is connected to one end of the first base 717, and a first limiting groove is formed, the two ends of the first limiting groove are connected to one end of the first guide rail and the second guide rail, and a part of the first flexible cable is slidably set in the first limiting groove; the second fixed seat 702 is connected to the other end of the first base 717, and a second limiting groove is formed, the two ends of the second limiting groove are connected to the other end of the first guide rail and the second guide rail, and a part of the second flexible cable is slidably set in the second limiting groove.

[0125] In this embodiment, a first fixing seat 701 and a second fixing seat 702 are respectively provided at both ends of the first base 717, and the first fixing seat 701 and the second fixing seat 702 are respectively formed with a first limiting groove and a second limiting groove docking with the first guide rail and the second guide rail, respectively limiting and guiding the positions of the first flexible rope and the second flexible rope, so that the sliding of the first flexible rope and the second flexible rope is smoother.

[0126] Specifically, a first fixing hole is provided on the first fixing seat 701, and a first waist-shaped hole extending along the width direction of the first base 717 is provided on the first base 717; the sliding mechanism also includes a first adjusting member 704, which passes through the first fixing hole and is slidably arranged in the first waist-shaped hole to adjust the tightness of the first flexible rope by adjusting the position of the first adjusting member 704 in the first waist-shaped hole.

[0127] In this embodiment, by adjusting the position of the first adjusting member 704 in the first waist-shaped hole, the position of the first fixing seat 701 can be adjusted along the width direction of the first base 717, so that the first fixing seat 701 can tighten or loosen the first flexible rope, thereby adjusting the tightness of the first flexible rope.

[0128] Since the first flexible cable and the second flexible cable are respectively located on the first fixing seat 701 and the second fixing seat 702 on both sides of the first base 717, and the first flexible cable and the second flexible cable are connected to the first slider 714 and the second slider 713 at both ends, when the first fixing seat 701 is adjusted to move relative to the first base 717 through the first waist-shaped hole, the first flexible cable is adjusted in tightness accordingly, and the second flexible cable is also adjusted in tightness accordingly under the pulling of the first fixing seat 701 on the first flexible cable.

[0129] A first fixing hole can also be provided on the second fixing seat 702; a first waist-shaped hole extending along the width direction of the first base 717 is provided on the first base 717; the sliding mechanism also includes a first adjusting member 704, which passes through the first fixing hole and can be slidably provided in the first waist-shaped hole to adjust the tightness of the second flexible rope by adjusting the position of the first adjusting member 704 in the first waist-shaped hole.

[0130] In this embodiment, by adjusting the position of the first adjusting member 704 in the first waist-shaped hole, the position of the second fixing seat 702 can be adjusted along the width direction of the first base 717, so that the second fixing seat 702 can tighten or loosen the second flexible rope, thereby adjusting the tightness of the second flexible rope.

[0131] Since the first flexible cable and the second flexible cable are respectively located on the first fixing seat 701 and the second fixing seat 702 on both sides of the first base 717, and the first flexible cable and the second flexible cable are connected to the first slider 714 and the second slider 713 at both ends, when the second fixing seat 702 is adjusted to move relative to the first base 717 through the first waist-shaped hole, the tightness of the second flexible cable is adjusted accordingly, and the tightness of the first flexible cable is also adjusted accordingly under the pulling of the second fixing seat 702 on the second flexible cable.

[0132] Furthermore, in some embodiments, the first fixing seat 701 is provided with a second waist-shaped hole extending along the width direction of the first base 717. The first base 717 is provided with a second fixing hole. The sliding mechanism also includes a second adjustment member 703, which is sequentially passed through the second waist-shaped hole and the second fixing hole and fixed to the external structure. The position of the first fixing seat 701 relative to the external structure is adjusted by the position of the second adjustment member 703 in the second waist-shaped hole.

[0133] In this embodiment, a second waist-shaped hole is provided on the first fixing base 701, and the second adjusting member 703 is sequentially passed through the second waist-shaped hole and the second fixing hole to be fixed to the external structure, so that the first fixing base 701 is fixed to the external structure, thereby fixing the sliding mechanism to the external structure (such as the door 2). At the same time, the second adjusting member 703 can be fine-tuned along the position of the second waist-shaped hole to adjust the position of the first fixing base 701, thereby coordinating the adjustment of the position of the first fixing base 701 relative to the external structure.

[0134] The second fixing base 702 may also be provided with a second waist-shaped hole extending along the width direction of the first base 717; the second adjustment member 703 is sequentially passed through the second waist-shaped hole and the second fixing hole to be fixed to the external structure, so that the position of the second fixing base 702 relative to the external structure is adjusted by the position of the second adjustment member 703 in the second waist-shaped hole. The functions of the second adjustment member 703, the second waist-shaped hole, and the second fixing hole are similar to those of the above embodiment and will not be further described here.

[0135] Furthermore, in some embodiments, a rotatable support bearing is provided in the first limiting groove; a portion of the first flexible cable abuts the support bearing in the first limiting groove. In this embodiment, by abutting a portion of the first flexible cable against the support bearing, the movement and extension direction of the first flexible cable can be adjusted, thereby facilitating the first flexible cable to pass around the end of the first base 717 and connect to the first slider 714 and the second slider 713.

[0136] A rotatable support bearing may also be provided in the second limiting groove; a portion of the second flexible cable abuts against the support bearing in the second limiting groove to adjust the extension direction of the second flexible cable, making it convenient to pass the end of the second flexible cable around the first base 717 and connect it to the first slider 714 and the second slider 713.

[0137] Specifically, in some embodiments, the support bearing includes a first bearing 705 and a second bearing 716 , which are respectively located at one end of the first guide rail and the second guide rail on the same side and respectively located on both sides of the first base 717 .

[0138] In one embodiment of the present application, as shown in FIG5 , the traction mechanism includes a traction rod 709, a first rotating shaft fixing seat 707, and a second rotating shaft fixing seat 710. The first rotating shaft fixing seat 707 is connected to the first slider 714, and the second rotating shaft fixing seat 710 is used to be connected to the box body 1. One end of the traction rod 709 is rotatably connected to the first rotating shaft fixing seat 707, and the other end of the traction rod 709 is rotatably connected to the second rotating shaft fixing seat 710.

[0139] In this embodiment, the first rotating shaft fixing seat 707 and the second rotating shaft fixing seat 710 are respectively fixed to the first slider 714 and the box body 1, and the first rotating shaft fixing seat 707 and the second rotating shaft fixing seat 710 are connected by a traction rod 709, so that the distance between the first slider 714 and the second rotating shaft fixing seat 710 remains unchanged. When the box door 2 rotates relative to the box body 1, the angle between the box body 1 and the box door 2 changes, so that the first slider 714 is pulled by the transmission connection of the traction rod 709, the first rotating shaft fixing seat 707 and the second rotating shaft fixing seat 710, so that the first slider 714 slides on the first base 717, and drives the second slider 713 to slide to realize the movement of the door panel 21 relative to the box door 2.

[0140] Specifically, one end of the traction rod 709 is rotatably connected to the first rotation shaft fixing seat 707 through a pin shaft 708 and a third bearing 715 , and the other end is rotatably connected to the second rotation shaft fixing seat 710 through another pin shaft 708 and another third bearing 715 .

[0141] In an embodiment of another aspect of the present application, as shown in Figures 3 and 4, a door assembly is provided, comprising: a box door 2, a door panel 21, and a sliding mechanism as provided in any of the above embodiments. The box door 2 is rotatably connected to the box body 1, and is suitable for opening or closing the storage space of the box body 1. The door panel 21 is slidably arranged on the outside of the box door 2; the sliding mechanism is arranged on the box door 2, the first slider 714 is used for transmission connection with the box body 1, and the second slider 713 is connected to the door panel 21. During the process of opening or closing the box door 2, the first slider 714 and the second slider 713 move in opposite directions to drive the door panel 21 to move relative to the box door 2.

[0142] Specifically, when the door 2 rotates to open toward the outside of the housing 1, the first slider 714, driven by the housing 1 through the traction mechanism, slides toward the first hinge 4. The first slider 714 drives the second slider 713 to slide away from the first hinge 4 via the flexible cable 706, thereby driving the door panel 21 to slide away from the first hinge 4, thereby preventing the door panel 21 from interfering with external obstacles. Similarly, when the door 2 rotates to close toward the side of the housing 1, the sliding mechanism drives the door panel 21 to slide toward the first hinge 4, thereby preventing the door panel 21 from interfering with obstacles after closing.

[0143] According to the door body assembly of the embodiment of the present application, a sliding mechanism is provided on the box door 2, which respectively connects the box door 2 and the door panel 21, so that when the box door 2 rotates to open or close relative to the box body 1, the door panel 21 is driven to slide in the width direction relative to the box door 2, so that the door panel 21 can avoid obstacles such as side walls and objects during the closing or opening process of the box door 2.

[0144] The sliding mechanism has the beneficial effects of the above embodiments, and the door assembly correspondingly has the beneficial effects of the above embodiments. Its specific implementation can refer to the above embodiments, and this application will not elaborate on it.

[0145] In one embodiment of the present application, as shown in FIG. 5 and FIG. 6 , a first connecting block 712 is provided on the second sliding block 713 , and a slot for hanging the door panel 21 is formed on the first connecting block 712 .

[0146] In this embodiment, a first connecting block 712 is provided on the second slider 713, and a slot is provided on the first connecting block 712. Accordingly, a connecting component (such as a hook, a connector, etc.) adapted to the slot is provided on the door panel 21, so that the door panel 21 can be mounted on the first connecting block 712 and slide along the second slider 713. At the same time, it is also convenient for the user to remove the door panel 21 from the second slider 713 when needed, meeting the user's usage needs in different scenarios.

[0147] According to another embodiment of the present application, in addition to the above dual guide rail and dual slider structure, the sliding mechanism of the present application can also adopt the structure shown in Figures 8 to 10. The sliding mechanism includes a guide member 730, a sliding member 740, a connecting rod assembly 750 and a driving rod 760.

[0148] The guide member 730 is configured to be provided on the door. A guide structure 731 is provided on the guide member 730. The sliding member 740 is configured to be provided on the door panel. The sliding member 740 is movably provided on the guide member 730 along the width direction of the door.

[0149] The connecting rod assembly 750 is movably disposed on the guide structure 731 and can undergo structural deformation under the guidance of the guide structure 731 . The second end of the connecting rod assembly 750 is movably connected to the sliding member 740 .

[0150] The driving rod 760 is arranged in the box body and is movably connected to the first end of the connecting rod assembly 750 to drive the connecting rod assembly 750 to undergo structural deformation during the opening and closing process of the box door, and then the connecting rod assembly 750 drives the sliding member 740 to drive the door panel to move along the width direction.

[0151] As shown in the figure, the box body is installed with a hinge, and a hinge shaft is provided on the hinge. The box door is rotatably provided on the hinge shaft to realize opening or closing of the box door relative to the box body.

[0152] The guide structure 731 can ensure that the connecting rod assembly 750 moves along a predetermined path or direction, prevent it from deviating from the predetermined trajectory, and can guide the structural deformation of the connecting rod assembly 750, thereby driving the sliding member 740 to move along the width direction of the door.

[0153] Optionally, the guide structure 731 can guide the connecting rod assembly 750 to move along the tooth shape of the sprocket by cooperating with the sprocket and the chain, or the guide structure 731 can guide the connecting rod assembly 750 to move along the cross section of the guide rail by cooperating with the sliding block 742 and the guide rail.

[0154] The connecting rod assembly 750 changes the distance between the second end of the connecting rod assembly 750 and the hinge through its own structural deformation, thereby driving the distance between the sliding member 740 and the hinge to change, further realizing the change of the distance between the door panel connected to the sliding member 740 and the hinge.

[0155] Optionally, the connecting rod assembly 750 may be a parallel four-bar linkage or a crank rocker mechanism.

[0156] The sliding mechanism shown in this embodiment is characterized in that the guide member 730 is provided on the box door, the sliding member 740 is provided on the door panel, the sliding member 740 is movably provided on the guide member 730 along the width direction of the box door, and a guide structure 731 is provided on the guide member 730. The guide structure 731 can guide the connecting rod assembly 750 to perform structural deformation and movably connect the second end of the connecting rod assembly 750 to the sliding member 740. When the box door is opened, the driving rod 760 drives the first end of the connecting rod assembly 750, the connecting rod assembly 750 undergoes structural deformation, and the second end of the connecting rod assembly 750 pulls the sliding member 740 to perform structural deformation. The sliding member 740 moves in the direction away from the hinge, thereby driving the door panel to move along the width direction of the door in the direction away from the hinge, so that the door panel and the cabinet body on the side do not interfere with the cabinet body; when the door is closed, the driving rod 760 drives the first end of the connecting rod assembly 750, the connecting rod assembly 750 undergoes structural deformation, and the second end of the connecting rod assembly 750 pulls the sliding member 740 to move in the direction close to the hinge, thereby driving the door panel to move along the width direction of the door in the direction close to the hinge, so that the door panel returns to its original position, ensuring that the door panel does not interfere with the cabinet body around the refrigeration equipment.

[0157] In some embodiments, as shown in FIG. 8 , the connecting rod assembly 750 includes a first connecting rod 751 and a second connecting rod 752 .

[0158] The driving rod 760 is rotatably connected to the first end of the first connecting rod 751, and the second end of the first connecting rod 751 and the first end of the second connecting rod 752 are rotatably connected through the first hinge shaft 753; the first hinge shaft 753 is arranged on the guide structure 731, and moves along the thickness direction of the door panel under the guidance of the guide structure 731; the second end of the second connecting rod 752 is rotatably connected to the sliding member 740.

[0159] The driving rod 760 is used to drive the first end of the first connecting rod 751 to move along the width direction, and the first connecting rod 751 is used to drive the first hinge shaft 753 to move along the thickness direction to change the angle between the first connecting rod 751 and the second connecting rod 752, and then the second connecting rod 752 drives the sliding member 740 to move in a direction opposite to the driving direction of the driving rod 760.

[0160] The driving rod 760 provides driving force to the first end of the first connecting rod 751, and the guide structure 731 can constrain the moving path of the first hinge shaft 753, so that the first hinge shaft 753 can only move along the thickness direction of the box door, thereby changing the angle between the first connecting rod 751 and the second connecting rod 752, so that the second connecting rod 752 moves along the width direction.

[0161] During the process of the box door opening the box body, the driving rod 760 drives the first end of the first connecting rod 751 to move along the width direction toward the direction close to the hinge, and the first connecting rod 751 drives the first hinge shaft 753 to move along the thickness direction toward the sliding member 740, so that the angle between the first connecting rod 751 and the second connecting rod 752 becomes larger, pushing the second connecting rod 752 to move toward the direction away from the hinge, and then driving the sliding member 740 to move along the width direction toward the direction away from the hinge, so that the door panel and the side cabinet body do not interfere with the cabinet body.

[0162] During the process of closing the door, the driving rod 760 drives the first end of the first connecting rod 751 to move in the direction away from the hinge along the width direction, and the first connecting rod 751 drives the first hinge shaft 753 to move in the thickness direction away from the sliding member 740, so that the angle between the first connecting rod 751 and the second connecting rod 752 becomes smaller, pushing the second connecting rod 752 to move in the direction close to the hinge, and then driving the sliding member 740 to move in the width direction close to the hinge, so that the door panel returns to its original position, ensuring that the door panel does not interfere with the cabinet body around the refrigeration equipment.

[0163] In this embodiment, a first connecting rod 751, a second connecting rod 752 and a first hinge shaft 753 are provided in the connecting rod assembly 750, and the movement of the first hinge shaft 753 is limited to the thickness direction. By changing the angle between the first connecting rod 751 and the second connecting rod 752, the second connecting rod 752 can drive the sliding member 740 to move in the width direction, thereby realizing the movement of the door panel relative to the box door. The structure is simple and the volume is small.

[0164] In some embodiments, as shown in FIG. 8 , the driving rod 760 includes a linkage.

[0165] The first end of the linkage is configured to be rotatably fixed on the housing of the refrigeration equipment, and the second end of the linkage is rotatably connected to the first end of the first connecting rod 751; the fixed position is set away from the hinge position between the door and the housing.

[0166] When the door opens the box body, the linkage member drives the first end of the first connecting rod 751 to move toward the side close to the hinge position, and the second connecting rod 752 drives the sliding member 740 to move the door panel toward the side away from the hinge position.

[0167] When the door closes the box body, the linkage member drives the first end of the first connecting rod 751 to move toward the side away from the hinge position, and the second connecting rod 752 drives the sliding member 740 to move the door panel toward the side close to the hinge position.

[0168] The first end of the linkage in this embodiment is rotatably provided on the hinge. When the box door rotates relative to the box body around the hinge axis, the second end of the linkage rotates in a circle with the hinge axis as the center. Since the first end of the linkage is staggered with the hinge axis, the distance between the second end of the linkage and the hinge will change with the rotation of the linkage, thereby driving the connecting rod assembly 750 to move closer to or away from the hinge along the width direction of the box door.

[0169] During the process of the box door opening the box body, as the box door rotates, the box door drives the connecting member to rotate, and the second end of the connecting member drives the first end of the first connecting rod 751 to move toward the side close to the hinge position, and the second end of the second connecting rod 752 drives the sliding member 740 to move toward the side away from the hinge position, thereby causing the door panel to move toward the side away from the hinge position.

[0170] During the process of closing the box body by the box door, as the box door rotates, the box door drives the linkage to rotate, and the second end of the linkage drives the first end of the first connecting rod 751 to move toward the side away from the hinge position, and the second end of the second connecting rod 752 drives the sliding member 740 to move toward the side away from the hinge position, thereby causing the door panel to move toward the side close to the hinge position.

[0171] In this embodiment, the first end of the connecting member is set to deviate from the hinge position between the box door and the box body, so that the second end of the connecting member can drive the first end of the first connecting rod 751, so that the second connecting rod 752 can drive the sliding member 740 to move in the width direction. The opening and closing of the box door can control the transmission of the connecting member driving the connecting rod assembly 750, so that the sliding member 740 can drive the door panel to move in the width direction. Without the need for an additional driving device, the movement of the door panel relative to the box door can be synchronized with the opening and closing of the box door.

[0172] In some embodiments, as shown in FIG. 9 , the guide structure 731 includes: a first limiting groove 7311 .

[0173] The first limiting groove 7311 extends along the thickness direction.

[0174] The first hinge shaft 753 is inserted into the first limiting groove 7311 and can move along the extending direction of the first limiting groove 7311 .

[0175] The first limiting groove 7311 is used to limit the first hinge shaft 753 so that the first hinge shaft 753 can only move along the thickness direction, thereby allowing the angle between the first connecting rod 751 and the second connecting rod 752 respectively connected to the first hinge shaft 753 to change, and the movement directions of the second end of the first connecting rod 751 and the second end of the second connecting rod 752 are opposite.

[0176] The first limiting groove 7311 of this embodiment can guide the moving direction of the first hinge shaft 753, and the first limiting groove 7311 can be directly opened on the upper surface of the guide member 730 without occupying additional space, thereby ensuring the compactness of the structure of the sliding mechanism.

[0177] In some embodiments, as shown in FIG. 9 , the guide structure 731 further includes: a second limiting groove 7312 .

[0178] The second limiting groove 7312 extends along the width direction and is connected to the first limiting groove 7311 .

[0179] The driving rod 760 is rotatably connected to the first end of the first connecting rod 751 via a second hinge shaft 754. The second end of the second connecting rod 752 is rotatably connected to the sliding member 740 via a third hinge shaft 755. The second hinge shaft 754 and the third hinge shaft 755 are respectively inserted into the second limiting groove 7312 and are capable of moving along the extension direction of the second limiting groove 7312.

[0180] The second hinge axis 754 and the third hinge axis 755 are respectively arranged on both sides of the first limiting groove 7311 .

[0181] The second limiting groove 7312 is used to limit the second hinge shaft 754 and the third hinge shaft 755, so that the second hinge shaft 754 and the third hinge shaft 755 can only move along the width direction, thereby enabling the second connecting rod 752 to drive the sliding member 740 to move along the width direction. The second limiting groove 7312 of this embodiment prevents the moving direction of the sliding member 740 from being offset, thereby ensuring the reliability and stability of the moving direction of the sliding member 740, thereby ensuring the reliability of the door panel moving along the width direction of the box door.

[0182] In some embodiments, as shown in FIG. 8 , the sliding mechanism further includes an elastic member 770 .

[0183] The elastic member 770 is disposed between the guide member 730 and the sliding member 740 .

[0184] When the link assembly 750 drives the sliding member 740 to move toward a side away from the hinge position, the sliding member 740 compresses the elastic member 770 in the process of driving the door panel to move.

[0185] When the connecting rod assembly 750 drives the sliding member 740 to move toward the side close to the hinge position, the elastic member 770 drives the sliding member 740 to drive the door panel to move toward the hinge position.

[0186] The hinged position is located between the box door and the box body, and the box door is rotatably arranged on the box body based on the hinged position.

[0187] When the link assembly 750 drives the sliding member 740 to move toward a side away from the hinge position, the elastic member 770 is squeezed in a direction away from the hinge to accumulate elastic potential energy.

[0188] When the connecting rod assembly 750 drives the sliding member 740 to move toward the side close to the hinge position, the elastic potential energy of the elastic member 770 is released, and the elastic force of the elastic member 770 acts on the sliding member 740, driving the sliding member 740 to move close to the hinge position.

[0189] Specifically, the elastic member 770 may be an elastic sheet, an elastic block, or a spring.

[0190] In this embodiment, an elastic member 770 is provided in the sliding mechanism. Based on the elastic deformation of the elastic member 770 , it can ensure that the movement of the sliding member 740 relative to the guide member 730 is more stable and reliable.

[0191] In some embodiments, as shown in FIG. 8 to FIG. 10 , the guide member 730 includes a fixing plate 732 and a sliding groove 733 .

[0192] The fixing plate 732 is configured to be provided on the box door.

[0193] The sliding groove 733 is disposed on the fixed plate 732 and extends along the width direction. At least a portion of the sliding member 740 is movably disposed in the sliding groove 733 along the width direction.

[0194] The fixed plate 732 of this embodiment is used to be fixedly connected to the box door, and the slide groove 733 is used to guide the sliding member 740 to move along the width direction of the box door. Based on the sliding cooperation between the sliding member 740 and the slide groove 733, it is ensured that the sliding member 740 can move stably and reliably along the width direction of the box door.

[0195] In some embodiments, as shown in FIG. 9 and FIG. 10 , the guide member 730 further includes a sliding sleeve 734 . The sliding sleeve 734 is disposed at one end of the sliding groove 733 away from the hinge position.

[0196] The sliding member 740 includes a guide rod 741 and a sliding block 742. The guide rod 741 is inserted into the sliding sleeve 734. A sliding contact 745 is provided on the guide rod 741. The sliding contact 745 is movably provided in the sliding groove 733 along the width direction. The sliding block 742 is connected to the guide rod 741 and is configured to be connected to the door panel.

[0197] The elastic member 770 is disposed between the sliding sleeve 734 and the sliding contact 745 .

[0198] The sliding groove 733 of this embodiment is set in an arc shape to adapt to the outer wall of the guide rod 741. The sliding sleeve 734 is used to guide the movement of the guide rod 741 relative to the sliding groove 733. As the sliding member 740 moves on the sliding groove 733, the sliding contact 745 also moves accordingly. The sliding sleeve 734 is fixed relative to the fixed plate 732. The elastic member 770 is limited between the sliding sleeve 734 and the sliding contact 745. When the guide rod 741 moves toward the side away from the hinge, the sliding member 740 moves. The moving contact 745 moves toward the sleeve 734, causing the elastic member 770 between the sleeve 734 and the sliding contact 745 to be compressed. When the guide rod 741 moves toward the side close to the hinge, the elastic member 770 releases its elastic potential energy and stretches, and the sliding contact 745 moves in the direction away from the sleeve 734. The sleeve 734 and the sliding contact 745 constrain the elastic member 770 from both sides of the elastic member 770 to ensure the reliability of the compression and extension of the elastic member 770.

[0199] In addition, one end of the sliding block 742 is connected to the guide rod 741, and the other end is connected to the door panel, so that when the guide rod 741 moves along the width direction of the door, the sliding can drive the door panel to move along the width direction of the door.

[0200] In some embodiments, as shown in FIG. 8 , the elastic member 770 includes a spring, which is sleeved on the outside of the guide rod 741 and is located between the sliding sleeve 734 and the sliding contact 745 .

[0201] When the elastic member 770 is set as a spring, the hollow structure of the spring enables the spring to be mounted on the outer wall of the guide rod 741, and the state of the spring changes between compression and extension in the length direction of the guide rod 741. In addition, the sliding sleeve 734 and the sliding contact 745 can limit the two sides of the spring from both ends of the guide rod 741, so as to facilitate the stopping of both ends of the spring during compression and extension. The spring of this embodiment makes the structure of the door panel simple and compact when it is reset relative to the box door, and the volume is small, which saves the installation space of the door panel.

[0202] In some embodiments, as shown in FIG. 8 and FIG. 9 , the sliding member 740 further includes a first connecting arm 743 and a second connecting arm 744 .

[0203] The first connecting arm 743 and the second connecting arm 744 are spaced apart in the width direction, the first end of the guide rod 741 is connected to the first end of the sliding block 742 through the first connecting arm 743, and the second end of the guide rod 741 is connected to the second end of the sliding block 742 through the second connecting arm 744.

[0204] The sliding sleeve 734 and the sliding contact 745 are located between the first connecting arm 743 and the second connecting arm 744 .

[0205] The first connecting arm 743 and the second connecting arm 744 connect the guide rod 741 and the sliding block 742 from both ends of the guide rod 741 and the sliding block 742 respectively, so that the connection between the guide rod 741 and the sliding block 742 is more firm, and when the sliding block 742 moves along the width direction of the box door, it is easier to fit the width direction.

[0206] Furthermore, the sliding block 742 of this embodiment is arranged perpendicular to the first connecting arm 743 and the second connecting arm 744, so that when the door panel is installed on the sliding block 742, the fixed plate 732 is installed on the top of the box door, and the door panel and the box door can fit parallel to each other, ensuring the flatness of the door panel installed on the box door, and facilitating the movement of the door panel along the box door.

[0207] Of course, in addition to the above-mentioned slide rails and sliders or connecting rods, the sliding mechanism can also adopt a gear rack structure, a cable structure, etc. The specific structure is not limited, as long as the sliding mechanism can drive the door panel to move relative to the door. Correspondingly, the traction mechanism is not limited to the above examples. For example, the traction mechanism can adopt a cylinder, a rope, etc. The specific examples are not listed one by one. In addition, the traction mechanism can be an electric structure or a mechanical structure.

[0208] In one embodiment of the present application, as shown in Figures 4, 11, and 12, the door assembly further comprises a first driven guide rail mechanism 8. The first driven guide rail mechanism 8 is disposed parallel to the sliding mechanism and is located on the door 2, and comprises a second base 817 and a third slider 813. A third guide rail is formed on the second base 817, and a third slider 813 is slidably disposed on the third guide rail. The third slider 813 is provided with a second connecting block 812, which has a slot formed therein for the door panel 21 to be attached.

[0209] In this embodiment, a first driven guide rail mechanism 8 is provided on the door 2 in parallel with the sliding mechanism. The first driven guide rail mechanism 8 has a second base 817, on which a third guide rail and a third slider 813 that can slide along the third guide rail are provided. The third slider 813 is connected to the door panel 21 via a second connecting block 812. The third slider 813 can slide with the door panel 21 when the door panel 21 slides relative to the door 2, providing support and auxiliary support for the sliding of the door panel 21, making the sliding of the door panel 21 relative to the door 2 smoother. At the same time, the first driven guide rail mechanism 8 can cooperate with the sliding mechanism to limit the movement direction of the door panel 21, reducing the shaking of the door panel 21 during the sliding process and making the sliding more stable. In addition, the slot on the second connecting block 812 makes it convenient for the user to install the door panel 21 on the driven guide rail mechanism.

[0210] Furthermore, the first driven guide rail mechanism 8 also includes a third fixed seat 801 and a fourth fixed seat 802. The third fixed seat 801 and the fourth fixed seat 802 are also provided with limiting grooves similar to the first fixed seat 701 and the second fixed seat 702.

[0211] Specifically, a third fixing hole is provided on the third fixing seat 801, and a third waist-shaped hole extending along the width direction of the second base 817 is provided on the second base 817; the third adjusting member 804 passes through the third fixing hole and can be slidably arranged in the third waist-shaped hole to adjust the position of the third adjusting member 804 in the third waist-shaped hole.

[0212] The fourth fixing seat 802 may also be provided with a third fixing hole; the second base 817 is provided with a third waist-shaped hole extending along the width direction of the second base 817; the third adjusting member 804 passes through the third fixing hole and is slidably provided in the third waist-shaped hole to adjust the position of the third adjusting member 804 in the third waist-shaped hole.

[0213] Furthermore, the third fixing base 801 is provided with a fourth waist-shaped hole extending along the width direction of the second base 817. The second base 817 is provided with a fourth fixing hole. The fourth adjustment member 803 is sequentially passed through the fourth waist-shaped hole and the fourth fixing hole and fixed to the external structure. The position of the third fixing base 801 relative to the external structure is adjusted by the position of the fourth adjustment member 803 in the fourth waist-shaped hole.

[0214] The fourth fixing seat 802 may also be provided with a fourth waist-shaped hole extending along the width direction of the third base 902; the fourth adjusting member 803 passes through the fourth waist-shaped hole and the fourth fixing hole in sequence and is fixed in the external structure, so as to adjust the position of the fourth fixing seat 802 relative to the external structure through the position of the fourth adjusting member 803 in the fourth waist-shaped hole.

[0215] In one embodiment of the present application, as shown in Figures 4, 13 and 14, the door body assembly also includes a second driven guide rail mechanism 9, which is arranged off-axis from the sliding mechanism. The second driven guide rail mechanism 9 includes a third base 902 and a fourth slider 903. A fourth guide rail is formed on the third base 902, and the fourth slider 903 is slidably arranged on the fourth guide rail. A plurality of third connecting blocks 905 are provided on the fourth slider 903, and a slot for hanging the door panel 21 is formed on the third connecting block 905.

[0216] In this embodiment, by setting up a second driven guide rail mechanism 9, the fourth slider 903 of the second driven guide rail mechanism 9 can slide with the door panel 21 when the door panel 21 slides relative to the box door 2, thereby supporting and assisting the sliding of the door panel 21, so that the door panel 21 can slide more stably and smoothly relative to the box door 2.

[0217] At the same time, since the second driven guide rail mechanism 9 and the sliding mechanism are arranged on different axes, the third connecting block 905 can cooperate with the sliding mechanism to limit the movement direction of the door panel 21, thereby preventing the door panel 21 from deflecting around the sliding direction when sliding, and the sliding process is more stable and reliable.

[0218] In one embodiment of the present application, as shown in FIG13 and FIG14 , a fifth fixing seat 901 and a sixth fixing seat 904 are respectively provided at both ends of the third base 902 of the second driven guide rail mechanism 9 for fixed connection with the box door 2 .

[0219] Furthermore, in one embodiment of the present application, as shown in Figures 4 and 11 to 14, the sliding mechanism, the first driven guide rail mechanism 8 and the second driven guide rail mechanism 9 are arranged along the width direction of the box door 2, the first driven guide rail mechanism 8 and the sliding mechanism are arranged in parallel, and the second driven guide rail mechanism 9 is arranged off-axis with the sliding mechanism.

[0220] The width direction of the door 2 is parallel to the plane where the door 2 is located, and perpendicular to the rotation axis of the door 2, so that the door panel 21 can move away from or close to the rotation axis of the door 2.

[0221] In this embodiment, by arranging the first driven guide rail mechanism 8 parallel to the sliding mechanism, the third slider 813 can slide parallel to the sliding mechanism, effectively assisting the door panel 21 in sliding relative to the door 2 under the drive of the sliding mechanism. Simultaneously, the second connecting block 812 cooperates with the sliding mechanism to limit the direction of movement of the door panel 21, preventing the door panel 21 from swinging during movement. Furthermore, because the second driven guide rail mechanism 9 is arranged off-axis from the sliding mechanism, the third connecting block 905 cooperates with the sliding mechanism to limit the direction of movement of the door panel 21, preventing the door panel 21 from deflecting about the sliding direction during sliding, thereby making the sliding process more stable and reliable.

[0222] In one embodiment of the present application, as shown in Figures 17 to 20, the door body assembly also includes: a first end cover 210 and a second end cover 220, the first end cover 210 is arranged at one end of the box door 2, and a first mounting groove 213 is formed on the first end cover 210, and the sliding mechanism and the first driven guide rail mechanism 8 are arranged in the first mounting groove 213; the second end cover 220 is arranged at the other end of the box door 2, and a second mounting groove is formed on the second end cover 220, and the second driven guide rail mechanism 9 is arranged in the second mounting groove.

[0223] In this embodiment, a first end cover 210 and a second end cover 220 are respectively provided at both ends of the box door 2, and a first mounting groove 213 is formed on the first end cover 210 to install the sliding mechanism and the first driven guide rail mechanism 8, and a second mounting groove is formed on the second end cover 220 to install the second driven guide rail mechanism 9, so that the structure of the sliding mechanism, the first driven guide rail mechanism 8, the second driven guide rail mechanism 9 and the box door 2 is more compact and beautiful.

[0224] Optionally, in one embodiment of the present application, as shown in Figure 18, the first driven guide rail mechanism 8 and the second driven guide rail mechanism 9 are both arranged along the width direction of the box door 2, the sliding mechanism and the first driven guide rail mechanism 8 are arranged at the top of the box door 2, and the second driven guide rail mechanism 9 is arranged at the bottom of the box door 2.

[0225] In this embodiment, the sliding mechanism and the first driven guide rail mechanism 8 are arranged at the top of the box door 2, and the second driven guide rail mechanism 9 is arranged at the bottom of the box door 2, so that the top of the box door 2 is connected to the door panel 21 through the sliding mechanism and the first driven guide rail mechanism 8, and the bottom of the box door 2 is connected to the door panel 21 through the second driven guide rail mechanism 9, thereby making the connection between the door panel 21 and the box door 2 more stable and reliable.

[0226] In another embodiment of the present application, the first driven guide rail mechanism 8 and the second driven guide rail mechanism 9 are both arranged along the width direction of the box door 2, the sliding mechanism and the first driven guide rail mechanism 8 are arranged at the bottom of the corresponding box door 2, and the second driven guide rail mechanism 9 of the first door body assembly is arranged at the top of the corresponding box door 2.

[0227] In this embodiment, the sliding mechanism and the first driven guide rail mechanism 8 are arranged at the bottom of the box door 2, and the second driven guide rail mechanism 9 is arranged at the top of the box door 2, so that the top of the box door 2 is connected to the door panel 21 through the sliding mechanism and the first driven guide rail mechanism 8, and the bottom of the box door 2 is connected to the door panel 21 through the second driven guide rail mechanism 9, thereby making the connection between the door panel 21 and the box door 2 more stable and reliable.

[0228] Furthermore, as shown in Figures 21, 23, 24, 26, and 27, in one embodiment of the present application, the door assembly further comprises: a first main decorative cover 13 and a second main decorative cover 14. The first main decorative cover 13 is detachably mounted on the first end cap 210 and is formed with a first notch 1303 and a second notch 1304. One end of the first connecting block 712 having a slot passes through the first notch 1303, and one end of the second connecting block 812 having a slot passes through the second notch 1304. The second main decorative cover 14 is detachably mounted on the second end cap 220 and is formed with a third notch 1401. One end of the third connecting block 905 having a slot passes through the third notch 1401.

[0229] In this embodiment, a first main decorative cover 13 is provided on the door 2 to cover the entire sliding mechanism and the first driven guide rail mechanism 8, preventing them from being completely exposed, thereby enhancing the appearance of the door. Furthermore, a first notch 1303 and a second notch 1304 are formed on the first main decorative cover 13, allowing the sliding mechanism and the first driven guide rail mechanism 8 to extend through the first notch 1303 and the second notch 1304, respectively, to the exterior of the first main decorative cover 13 and connect to the door panel 21, thereby driving the door panel 21 to slide. A second main decorative cover 14 is removably provided on the door 2 to cover the second driven guide rail mechanism 9, preventing it from being exposed, thereby enhancing the appearance of the entire door 2. The second driven guide rail mechanism 9 passes through the third notch 1401 and is configured to connect to the door panel 21, thereby guiding the movement of the door panel 21 relative to the door 2 during the opening or closing process of the door 2.

[0230] The color and material of the first main decorative cover 13 and the second main decorative cover 14 of this embodiment can be designed according to user needs and coordinated with the material and color of the outer surface of the door 2 (for example, keeping consistent or cooperating with the outer surface of the door 2 to form a decorative pattern) to improve the overall aesthetics of the cabinet.

[0231] In one embodiment of the present application, as shown in Figures 19, 23 and 24, one of the first main decorative cover 13 and the first end cover 210 is provided with a first protrusion, and the other is provided with a first groove corresponding to the first protrusion, and the first main decorative cover 13 is detachably connected to the first end cover 210 through the first protrusion and the first groove.

[0232] As shown in Figures 20, 26 and 27, one of the second main decorative cover 14 and the second end cover 220 is provided with a second protrusion, and the other is provided with a second groove corresponding to the second protrusion. The second main decorative cover 14 is detachably connected to the second end cover 220 through the second protrusion and the second groove.

[0233] In this embodiment, a first protrusion is provided on the first end cover 210 and a first groove is provided on the first main decorative cover 13 . The first protrusion and the first groove can be engaged with each other to fix the first main decorative cover 13 and the first end cover 210 to each other.

[0234] The positions of the first protrusion and the first groove can be interchanged, that is, the first end cover 210 is provided with a first groove, and the first main decorative cover 13 is provided with a first protrusion.

[0235] Similarly, as shown in Figures 20, 26 and 27, a second protrusion is provided on the second end cover 220, and a second groove is provided on the second main decorative cover 14. The second protrusion and the second groove can be engaged with each other to fix the second main decorative cover 14 and the second end cover 220 to each other.

[0236] The positions of the second protrusion and the second groove can be interchanged, that is, the first groove is provided on the second end cover 220 and the second main decorative cover 14 is provided with the second protrusion.

[0237] In one embodiment of the present application, as shown in Figures 22, 25, and 28, the door assembly further includes a first decorative cover 17 and a second decorative cover 18. The first decorative cover 17 is detachably mounted on the first end cover 210 to shield the sliding mechanism and the first driven guide rail mechanism 8; the second decorative cover 18 is detachably mounted on the second end cover 220 to shield the second driven guide rail mechanism 9.

[0238] In this embodiment, in some usage scenarios, there is no need to install a door panel 21 on the outside of the box door 2. The first auxiliary decorative cover 17 can be used to replace the first main decorative cover 13 on the first end cover 210, and the second auxiliary decorative cover 18 can be used to replace the second main decorative cover 14 on the second end cover 220, respectively, to cover the two driven guide rail mechanisms of the sliding mechanism, so as to improve the visual consistency of the box door 2, make it more beautiful, and meet the different usage needs of users.

[0239] In some embodiments of the present application, in one embodiment of the present application, one of the first sub-decorative cover 17 and the first end cover 210 is provided with a first protrusion, and the other is provided with a first groove corresponding to the first protrusion, and the first sub-decorative cover 17 is detachably connected to the first end cover 210 through the first protrusion and the first groove.

[0240] One of the second auxiliary decorative cover 18 and the second end cover 220 is provided with a second protrusion, and the other is provided with a second groove corresponding to the second protrusion. The second auxiliary decorative cover 18 is detachably connected to the second end cover 220 via the second protrusion and the second groove.

[0241] In this embodiment, a first protrusion is provided on the first end cover 210 and a first groove is provided on the first auxiliary decorative cover 17 . The first protrusion and the first groove can be engaged with each other to fix the first auxiliary decorative cover 17 and the first end cover 210 to each other.

[0242] The positions of the first protrusion and the first groove can be interchanged, that is, the first end cover 210 is provided with a first groove, and the first auxiliary decorative cover 17 is provided with a first protrusion.

[0243] Similarly, a second protrusion is provided on the second end cover 220 and a second groove is provided on the second auxiliary decorative cover 18 . The second protrusion and the second groove can be engaged with each other to fix the second auxiliary decorative cover 18 and the second end cover 220 to each other.

[0244] The positions of the second protrusion and the second groove can be interchanged, that is, the first groove is provided on the second end cover 220 and the second auxiliary decorative cover 18 is provided with the second protrusion.

[0245] In some embodiments, at least one of the first end cover 210 , the second end cover 220 , the first secondary decorative cover 17 , and the second secondary decorative cover 18 is provided with a handle slot for a user to open or close the door 2 .

[0246] In this embodiment, by setting a hand latch slot on at least one of the first end cover 210, the second end cover 220, the first decorative cover 17 and the second decorative cover 18, it is convenient for the user to put his hand into the hand latch slot, so that the user can manually open or close the door 2. The structure is simple and the operation is convenient.

[0247] As shown in Figure 28, when there is no need to install the door panel 21, the second driven guide rail mechanism 9 in the second installation groove can be removed. Accordingly, the second auxiliary decorative cover 18 is provided with a concave buckle portion 1801 at the position corresponding to the second installation groove, which is convenient for users to manually open and close the box door 2.

[0248] In one embodiment of the present application, as shown in Figures 15 and 16, a first hook 2111 is provided at the top of the door panel 21, and a second hook 2112 is provided at the bottom of the door panel 21. The length of the second hook 2112 is greater than that of the first hook 2111. The first hook 2111 and the second hook 2112 are adapted to be inserted into corresponding slots.

[0249] In this embodiment, by providing a first hook 2111 and a second hook 2112 at the top and bottom of the door panel 21, respectively, the door panel 21 can be connected to the slots on the sliding mechanism and the two driven guide rail mechanisms via the first hook 2111 and the second hook 2112, thereby slidably connecting the door panel 21 to the cabinet door 2. The first hook 2111 and the second hook 2112 are located at the top and bottom of the door panel 21, respectively, so that the door panel 21 is not easily shaken.

[0250] In addition, the length of the second hook 2112 is greater than that of the first hook 2111. When the door panel 21 is installed on the outside of the box door 2, the slot at the bottom is first hooked with the second hook 2112 of the door panel 21 to preliminarily position the bottom of the door panel 21. Then, the position and angle of the door panel 21 are adjusted so that the first hook 2111 at the top of the door panel 21 can be inserted into the slot at the top of the box door 2, making it easier for users to align the slot with the first hook 2111 and the second hook 2112, making installation more convenient.

[0251] Specifically, the first hook 2111 includes a connecting portion and a hook portion disposed on the connecting portion. The hook portion is hook-shaped and is designed to be hooked into a slot. The connecting portion is provided with at least one waist-shaped hole extending horizontally and at least one waist-shaped hole extending vertically. The door panel 21 is provided with a corresponding fixing hole for the first hook 2111. The door panel 21 and the first hook 2111 are fixedly connected by a fixing member that passes through the waist-shaped hole and the fixing hole. By adjusting the position of the fixing member within the waist-shaped hole, the position of the first hook 2111 can be fine-tuned, facilitating installation of the door panel 21 and fine-tuning its position and angle.

[0252] The structure of the second hook 2112 is similar to that of the first hook 2111 and will not be described again here.

[0253] In one embodiment of the present application, the door assembly and the cabinet 1 are used to be arranged in an installation space formed between a first cabinet and a second cabinet; during the opening or closing process of the cabinet door 2, the sliding mechanism is configured to drive the door panel 21 to move a preset distance on the cabinet door 2 so that the door panel 21 avoids the side walls of the first cabinet and the second cabinet.

[0254] In this embodiment, the box body 1 is arranged between the first cabinet body and the second cabinet body, and the material and color of the door panel 21 can be designed to be similar or the same as the material color of the outer wall of the cabinet body. When the box door 2 is closed, the door panel 21 is flush with the outer walls of the first cabinet body and the second cabinet body on both sides, so that the door panel 21 and the outer wall of the cabinet body can maintain visual consistency with a smaller gap, which is more beautiful.

[0255] When the door 2 is rotated outward to open, the sliding mechanism drives the door panel 21 to slide a preset distance away from the first hinge 4 to prevent the door panel 21 from interfering with the cabinet wall on the side closest to the first hinge 4, which would prevent the door 2 from opening to a wider angle. When the door 2 is rotated to close, the sliding mechanism drives the door panel 21 to slide a preset distance toward the first hinge 4 to prevent the door panel 21 from interfering with the cabinet wall on the side away from the first hinge 4, which would prevent the door 2 from fully closing and affect the function of the cabinet 1. When the door 2 is fully closed, the door panel 21 can return to a state flush with the cabinet. By designing a reasonable preset distance, the door panel 21 can avoid interference with the cabinet walls on both sides when sliding relative to the door 2.

[0256] In another embodiment of the present application, the door assembly and the box body 1 are used to be set in a cabinet; during the opening or closing process of the box door 2, the sliding mechanism is configured to drive the door panel 21 to move a preset distance on the box door 2 so that the door panel 21 avoids the side wall of the cabinet.

[0257] In this embodiment, the box body 1 is set in a single cabinet body, and the material and color of the door panel 21 can be designed to be similar or the same as the material color of the outer wall of the cabinet body. When the box door 2 is closed, the door panel 21 is flush with the outer wall of the cabinet body, so that the door panel 21 and the outer wall of the cabinet body can maintain visual consistency and the gap is smaller, which is more beautiful.

[0258] When the door 2 is rotated outward to open, the sliding mechanism drives the door panel 21 to slide a preset distance away from the first hinge 4 to prevent the door panel 21 from interfering with the cabinet wall on the side closest to the first hinge 4, which would prevent the door 2 from opening to a wider angle. When the door 2 is rotated to close, the sliding mechanism drives the door panel 21 to slide a preset distance toward the first hinge 4 to prevent the door panel 21 from interfering with the cabinet wall on the side away from the first hinge 4, which would prevent the door 2 from fully closing and affect the function of the cabinet 1. When the door 2 is fully closed, the door panel 21 can return to a state flush with the cabinet. By designing a reasonable preset distance, the door panel 21 can avoid interference with the cabinet walls on both sides when sliding relative to the door 2.

[0259] In another embodiment of the present application, as shown in Figures 1 and 2, a refrigeration device is provided, comprising: a housing 1 and a door assembly as provided in any of the above embodiments. The housing 1 defines a storage space, and the door 2 is rotatably connected to the housing 1 and adapted to open or close the storage space.

[0260] In this embodiment, the door assembly includes: a door 2, a door panel 21, and a sliding mechanism. The sliding mechanism is provided on the door 2 and is configured to drive the door panel 21 to move in the width direction relative to the door 2 during the process of opening or closing the door 2.

[0261] By setting a door panel 21 on the cabinet door 2, when the refrigeration equipment is embedded and set in a groove-shaped space, or when it is set between two cabinets, the door panel 21 can be set flush with the cabinets on the side walls or both sides of the groove to reduce the gap between the refrigeration equipment and the adjacent wall or cabinet, making it more beautiful.

[0262] At the same time, when the box door 2 rotates, the sliding mechanism can drive the door panel 21 to move relative to the box door 2 during the rotation of the box door 2 to stay as far away as possible from obstacles such as the wall or cabinet of the side door of the box body 1, so as to avoid these obstacles blocking the door panel 21 and affecting the rotation of the box door 2, causing the box door 2 to be unable to open or close normally.

[0263] The combination of door 2 and door panel 21 prevents interference between the door panel 21 and surrounding objects during opening and closing, significantly improving ease of use. This design advantage is particularly evident in cramped kitchen environments. Furthermore, the sliding mechanism ensures smooth movement of the door panel 21 during opening and closing, extending the refrigerator's lifespan and stability.

[0264] If the door assembly has the beneficial effects of the above embodiments, then the refrigeration equipment will correspondingly have the beneficial effects of the above embodiments. Its specific implementation can refer to the above embodiments, and this application will not elaborate on them.

[0265] Optionally, the box body 1 may have one or more storage spaces, each of which is provided with a corresponding door assembly. The multiple storage spaces may be arranged arbitrarily, such as up and down, left and right, etc.

[0266] In some embodiments of the present application, as shown in Figure 4, the box body 1 is formed with at least two storage spaces, and a plurality of door body assemblies are provided, each door body assembly corresponding to one of the storage spaces, so as to drive the door panel 21 to move relative to the corresponding box door 2 during the opening or closing process of any box door 2.

[0267] In the present application, the cabinet 1 has at least two storage spaces, and the two storage spaces can be set to different storage environments (different temperatures, humidity, etc.) to meet the storage conditions of different items. Each storage space is provided with a corresponding door assembly, and the door 2 of the corresponding door assembly can open or close the corresponding storage space, so that the two storage spaces can be opened or closed independently, making it convenient for users to store or take out items in the storage space. The door panel 21 of each door assembly can also slide relative to the corresponding door 2. When the door 2 is closed, the door panel 21 can be flush with the cabinet body on the side, or when the door 2 is open, the door panel 21 can avoid obstacles on both sides.

[0268] In one embodiment of the present application, as shown in FIG4 , a box body 1 has a first storage space and a second storage space. Accordingly, the door assembly also includes a first door assembly and a second door assembly. The box door 2 of the first door assembly is rotatably connected to the box body 1 to open or close the first storage space, and the box door 2 of the second door assembly is rotatably connected to the box body 1 to open or close the second storage space.

[0269] Furthermore, the first door body assembly and the second door body assembly are arranged up and down along the height direction of the box door 2. The first door body assembly also includes a first driven guide rail mechanism 8 and a second driven guide rail mechanism 9, and the second door body assembly also includes a first driven guide rail mechanism 8 and a second driven guide rail mechanism 9. The sliding mechanism and the first driven guide rail mechanism 8 of the first door body assembly are arranged at the top of the corresponding box door 2, and the second driven guide rail mechanism 9 of the first door body assembly is arranged at the bottom of the corresponding box door 2; the sliding mechanism and the first driven guide rail mechanism 8 of the second door body assembly are arranged at the bottom of the corresponding box door 2, and the second driven guide rail mechanism 9 of the first door body assembly is arranged at the top of the corresponding box door 2.

[0270] Specifically, as shown in FIG4 , a first connection hole 110 is provided on the box body 1 , the first hinge 4 is connected to the first connection hole 110 of the box body 1 , and the box body 1 is rotatably connected to the box door 2 of the first door assembly through the first hinge 4 .

[0271] The first storage space and the second storage space are separated by a first beam 120. The first beam 120 is provided with a second connection hole 121. The first beam 120 is connected to the second hinge 5 via the second connection hole 121. The second hinge 5 has two hinge shafts, one above the other, which are rotatably connected to the door 2 of the first door assembly and the other door 2 of the second door assembly, respectively.

[0272] A second beam 130 is provided at the bottom of the second storage space. A third connecting hole 132 and a fourth connecting hole 131 are provided on the second beam 130. The second beam 130 is rotatably connected to the door 2 of the second door assembly via the third connecting hole 132 and the third hinge 6, and via the third hinge 6. The second beam 130 is connected to the sliding mechanism of the second door assembly via the fourth connecting hole 131.

[0273] The top and bottom of the box door 2 of the first door body assembly are respectively provided with a first end cover 210 and a second end cover 220. The first end cover 210 is rotatably connected to the first hinge 4, and the second end cover 220 is rotatably connected to the hinge shaft of the second hinge 5 on the upper side, so as to realize that the box door 2 of the first door body assembly can rotate relative to the box body 1.

[0274] The top and bottom of the box door 2 of the second door body assembly are respectively provided with a third end cover 310 and a fourth end cover 320. The fourth end cover 320 is rotatably connected to the third hinge 6, and the third end cover 310 is rotatably connected to the hinge shaft located at the lower side of the second hinge 5, so as to realize that the box door 2 of the second door body assembly can rotate relative to the box body 1.

[0275] In one embodiment of the present application, as shown in Figures 4 and 19, both ends of the first end cover 210 have first hinge holes 211 that are rotatably connected to the first hinge 4. The first end cover 210 can be connected to the first hinge 4 through the first hinge hole 211 at one end. The first end cover 210 is provided with a first mounting groove 213, and the groove wall of the first mounting groove 213 is provided with a first mounting hole 216. The sliding mechanism is fixed to the groove wall of the first mounting groove 213 by bolts through the first mounting hole 216. A first avoidance opening 214 is provided on the groove wall of the first mounting groove 213 facing the box body 1, corresponding to the traction mechanism. The traction mechanism can be movably inserted into the first avoidance opening 214 so that it can move with the box door 2 to pull the sliding mechanism.

[0276] The first end cover 210 is further provided with a third mounting slot 212, into which the first driven guide rail mechanism 8 is mounted. The positions of the sliding mechanism and the first driven guide rail mechanism 8 can be swapped depending on the hinge position of the door 2 and the housing 1. Accordingly, a second escape opening 215 for circumventing the traction mechanism is also provided on the wall of the third mounting slot 212 facing the housing 1.

[0277] Specifically, a third groove 218 and a fourth groove 219 and a first ridge 217 for plugging are provided on the groove walls on opposite sides of the first installation groove 213 and the third installation groove 212 so as to be plugged and fixed with the first main decorative cover 13 or the first auxiliary decorative cover 17 .

[0278] Specifically, as shown in Figures 23 and 24 , the first main decorative cover 13 has first and second notches 1303 and 1304 on its two side surfaces, corresponding to the first and third mounting slots 213 and 212, respectively. These allow the sliding mechanism and the first driven guide rail mechanism 8 to extend through the notches and connect to the door panel 21. A fourth notch 1302 and a fifth notch 1301 are provided at each end of the first main decorative cover 13, allowing the traction mechanism to swing with the movement of the door 2 when the sliding mechanism is installed in the first or third mounting slots 213, 212. A first engaging groove 1305 is provided on the first main decorative cover 13, corresponding to the first ridge 217. A first rib 1307 is provided inside the first notch 1303 for engaging with the wall of the first mounting slot 213. A second rib 1306 is provided inside the second notch 1304 for engaging with the wall of the third mounting slot 212.

[0279] Correspondingly, the structure of the first auxiliary decorative cover 17 is similar to that of the first main decorative cover 13 , but no notch is provided for the sliding mechanism and the first driven guide rail mechanism 8 to extend out, which will not be described in detail here.

[0280] As shown in Figure 20, a third mounting hole 224 is provided on the inner groove wall of the second mounting groove of the second end cover 220, the first guide rail fixing seat 221 is installed in the second mounting groove through the third mounting hole 224, a second mounting hole 223 is provided on the first guide rail fixing seat 221, and the second driven guide rail mechanism 9 is installed on the first guide rail fixing seat 221 through the second mounting hole 223.

[0281] Specifically, a second ridge 225 and a third ridge 227 for plugging are provided on the groove walls on opposite sides of the second installation groove so as to be plugged and fixed to the second main decorative cover 14 or the first auxiliary decorative cover 17 .

[0282] Specifically, in one embodiment of the present application, as shown in Figures 13, 14, 26 and 27, there are two third connecting blocks 905, and two third notches 1401 are provided on the second main decorative cover 14 corresponding to the two third connecting blocks 905 of the second driven guide rail mechanism 9. A cavity for covering the second end cover 220 is formed in the second main decorative cover 14, and a fourth ridge 1403 and a fifth ridge 1408 are provided at both ends of the cavity, and a sixth ridge 1404 and a seventh ridge 1407 are provided at the bottom of the cavity, so as to cooperate with the third ridge 227 on the second end cover 220; at the same time, a second card groove 1405 and a third card groove 1406 that cooperate with the second ridge 225 are also provided at the bottom of the cavity, so as to assemble the second end cover 220 and the second main decorative cover 14 together.

[0283] As shown in Figures 4, 17 and 18, the top and bottom of the box door 2 of the second door body assembly are respectively provided with a third end cover 310 and a fourth end cover 320. The fourth end cover 320 is rotatably connected to the third hinge 6, and the third end cover 310 is rotatably connected to the hinge shaft of the second hinge 5 on the lower side, so as to realize that the box door 2 of the second door body assembly can rotate relative to the box body 1.

[0284] As shown in FIG. 4 , FIG. 21 and FIG. 22 , the second door body assembly further includes a third main decorative cover 15 , a fourth main decorative cover 16 , a third sub-decorative cover 19 and a fourth sub-decorative cover 20 .

[0285] The third main decorative cover 15 and the third secondary decorative cover 19 are used to be detachably mounted to the third end cover 310 at the top of the second door assembly. The structure of the third main decorative cover 15 is similar to that of the second main decorative cover 14; the structure of the third secondary decorative cover 19 is similar to that of the second secondary decorative cover 18.

[0286] The fourth primary decorative cover 16 and the fourth secondary decorative cover 20 are used to be removably mounted to the fourth end cover 320 at the bottom of the second door assembly. The structure of the fourth primary decorative cover 16 is similar to that of the first primary decorative cover 13; the structure of the fourth secondary decorative cover 20 is similar to that of the first secondary decorative cover 17.

[0287] Specifically, when the door panel 21 of the second door body assembly needs to be installed, the third main decorative cover 15 and the fourth main decorative cover 16 can be installed on the third end cover 310 and the fourth end cover 320 respectively; when the door panel 21 does not need to be installed, the third main decorative cover 15 and the fourth main decorative cover 16 can be removed, and the third auxiliary decorative cover 19 and the fourth main decorative cover 16 can be installed on the third end cover 310 and the fourth end cover 320 respectively.

[0288] Specifically, as shown in Figure 29, both ends of the third end cap 310 have second hinge holes 314 pivotally connected to the second hinge 5. The side of the third end cap 310 facing away from the door 2 has a latch slot 316. The third end cap 310 has a fourth mounting slot, into which a second guide rail mount 311 is mounted. The second guide rail mount 311 has a fourth mounting hole 315, through which the second driven guide rail mechanism 9 of the second door assembly is mounted. The top surface of the third end cap 310 has a plurality of eighth ridges 313 that engage with the third primary decorative cover 15 and the third secondary decorative cover 19.

[0289] Accordingly, as shown in Figures 31 and 32 , the third primary decorative cover 15 is provided with two sixth notches 1501 corresponding to the second driven rail mechanism 9, and multiple fourth slots 1503 corresponding to the eighth ridge 313. When the third primary decorative cover 15 is engaged with the third end cover 310, the latch slot 316 of the third end cover 310 is exposed, allowing the user to conveniently insert their hand into the latch slot 316 to open and close the door 2. The second driven rail mechanism 9 is connected to the door panel 21 via the sixth notches 1501.

[0290] As shown in FIG33 , the structure of the third auxiliary decorative cover 19 is similar to that of the third main decorative cover 15 , but there is no need to provide a notch structure for the second driven guide rail mechanism 9 to pass through.

[0291] As shown in Figure 30, the fourth end cover 320 is provided with a fifth mounting groove 323, and a fifth mounting hole 325 is provided on the groove wall of the fifth mounting groove 323. The sliding mechanism is fixed by bolts through the fifth mounting hole 325 and the fifth mounting groove 323. The fifth mounting groove 323 is provided with a third avoidance opening 322 on the groove wall facing the box body 1 corresponding to the traction mechanism. The traction mechanism can be movably inserted in the third avoidance opening 322 so that it can move with the box door 2 to pull the sliding mechanism.

[0292] The fourth end cap 320 also has a sixth mounting slot 324, into which the second driven guide rail mechanism 9 is mounted. The positions of the sliding mechanism and the first driven guide rail mechanism 8 can be swapped depending on the hinge position of the door 2 and the housing 1. Accordingly, a fourth clearance opening 321 is defined on the wall of the sixth mounting slot 324 facing the housing 1 to allow for the traction mechanism to pass through. The fourth end cap 320 is also provided with a ninth ridge 327 for mating with the fourth primary decorative cover 16 and the fourth secondary decorative cover 20.

[0293] Accordingly, as shown in Figures 34 and 35 , the fourth primary decorative cover 16 is provided with seventh and eighth notches 1601 and 1602 on both side surfaces, corresponding to the fifth and sixth mounting slots 323 and 324, respectively. These notches allow the sliding mechanism and the first driven guide rail mechanism 8 to extend through the notches and connect to the door panel 21. Ninth and tenth notches 1604 and 1603 are provided at both ends of the fourth primary decorative cover 16, allowing the traction mechanism to swing with the movement of the door 2 when the sliding mechanism is installed in the fifth or sixth mounting slots 323 and 324. A fifth and sixth retaining grooves 1606 and 1605 are provided on the fourth primary decorative cover 16, corresponding to the ninth ridge 327.

[0294] As shown in FIG. 36 , the structure of the fourth auxiliary decorative cover 20 is similar to that of the fourth main decorative cover 16 , but there is no need to provide a notch structure for the sliding mechanism and the first driven guide rail mechanism 8 to pass through.

[0295] Finally, it should be noted that the above embodiments are intended only to illustrate the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application and are intended to be encompassed by the claims of the present application.

Claims

1. A door assembly of an embedded refrigeration device, comprising: The door is rotatably connected to the refrigeration box, and the refrigeration box is embedded in the accommodation space formed by the mounting body, wherein the distance between the hinge axis of the door and the opening of the accommodation space is t, and the distance between the hinge axis and the end surface of the hinge side of the door is l3; Sliding mechanism; A door panel is movably mounted on the door through the sliding mechanism, the door panel can move along the width direction of the door, the moving distance is d, and the door panel has an interference position, which is the outer corner of the hinge side of the door panel; A traction mechanism, wherein the traction mechanism is connected to the sliding mechanism, and when the door is opened or closed, the traction mechanism drives the sliding mechanism to move, so as to drive the door panel to move relative to the door; The maximum door opening angle of the door body assembly is 90°-135°, the minimum value of the moving distance d of the door panel is between 14.15 mm and 109.108 mm, and the maximum door opening angle and the minimum value of the moving distance d are positively correlated.

2. The door assembly of the embedded refrigeration device according to claim 1, wherein: The thickness of the door panel is 12 mm to 25 mm, and the thickness of the box door is 20 mm to 60 mm.

3. The door assembly of the embedded refrigeration device according to claim 1 or 2, wherein: When the door panel is at the maximum door opening angle, the safety gap between the interference position and the panel of the installation body is 1 mm-5 mm, the assembly gap between the door panel and the cabinet door is 1 mm-10 mm, and the gap between the cabinet door and the refrigeration cabinet is 3 mm-15 mm.

4. The door assembly of the embedded refrigeration device according to any one of claims 1 to 3, wherein: After the interference position leaves the accommodation space, the movement distance of the door panel is d and the maximum door opening angle Δθ of the door assembly satisfies: d=(A+B+C+D1+D2-E) / sin(180-Δθ); Among them, A is the safety gap between the interference position of the door panel and the panel of the installation body at the maximum door opening angle, B is the assembly gap between the door panel and the cabinet door, C is the gap from the cabinet door to the refrigeration cabinet, D1 is the thickness of the door panel, D2 is the thickness of the cabinet door, and E is the distance from the innermost corner of the cabinet door to the refrigeration cabinet at the maximum door opening angle.

5. The door assembly of the embedded refrigeration appliance according to any one of claims 1 to 3, wherein: The sliding mechanism comprises: A first base having a first guide rail formed on one side and a second guide rail formed on the other side; A first slider is slidably disposed on the first guide rail, and the traction mechanism is rotatably connected between the box and the first slider; A second sliding block is slidably disposed on the second guide rail and is used to be connected to the door panel; A flexible cable, two ends of which are respectively connected to the first slider and the second slider; When the first slider moves on the first guide rail, the first slider drives the second slider to move in the opposite direction on the second guide rail through the flexible cable, so as to drive the door panel to move in the width direction relative to the box door.

6. The door assembly of the embedded refrigeration device according to claim 5, wherein: The flexible cable comprises: A first flexible cable, passing around one end of the first base, and having two ends respectively connected to one end of the first slider and one end of the second slider; The second flexible cable is wound around the other end of the first base, and both ends are respectively connected to the other ends of the first slider and the second slider.

7. The door assembly of the embedded refrigeration equipment according to claim 5, wherein: The traction mechanism comprises a traction rod, a first rotating shaft fixing seat and a second rotating shaft fixing seat; The first rotating shaft fixing seat is connected to the first sliding block, the second rotating shaft fixing seat is used to be connected to the box body, one end of the traction rod is rotatably connected to the first rotating shaft fixing seat, and the other end of the traction rod is rotatably connected to the second rotating shaft fixing seat.

8. The door assembly of the embedded refrigeration equipment according to claim 1, wherein: The sliding mechanism comprises: A guide member and a sliding member, wherein the guide member is arranged on the box door, a guide structure is arranged on the guide member, the sliding member is arranged on the door panel, and the sliding member is movably arranged on the guide member along the width direction of the box door; A connecting rod assembly is movably arranged on the guide structure and can be structurally deformed under the guidance of the guide structure, and the second end of the connecting rod assembly is movably connected to the sliding member; A driving rod is arranged on the box body and movably connected to the first end of the connecting rod assembly to drive the connecting rod assembly to undergo structural deformation during the opening and closing process of the box door, and then the connecting rod assembly drives the sliding member to drive the door panel to move along the width direction.

9. The door assembly of the embedded refrigeration device according to claim 8, wherein: The connecting rod assembly comprises: A first connecting rod and a second connecting rod, wherein the driving rod is rotatably connected to the first end of the first connecting rod, and the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod via a first hinge shaft; the first hinge shaft is provided on the guide structure and moves along the thickness direction of the door panel under the guidance of the guide structure; the second end of the second connecting rod is rotatably connected to the sliding member; The driving rod is used to drive the first end of the first connecting rod to move along the width direction, and the first connecting rod is used to drive the first hinge shaft to move along the thickness direction to change the angle between the first connecting rod and the second connecting rod, and then the second connecting rod drives the sliding member to move in a direction opposite to the driving direction of the driving rod.

10. A refrigeration device comprising: A box body is formed with a storage space; The door assembly as described in any one of claims 1-9, wherein the box door is rotatably connected to the box body and is suitable for opening or closing the storage space.

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