Door body assembly for embedded refrigeration apparatus and embedded refrigeration apparatus

Abstract

The present application relates to the technical field of refrigeration. Provided are a door body assembly for an embedded refrigeration apparatus, and the embedded refrigeration apparatus. A side-by-side door assembly for the embedded refrigeration apparatus, comprising: side-by-side refrigerator doors, which include a pair of refrigerator doors, wherein the refrigerator doors are rotatably connected to a refrigeration body, the refrigeration body being configured to be embedded in an accommodating space formed by a mounting body; and side-by-side door panels, which include a pair of door panels, wherein the door panels are movably mounted on the refrigerator doors, and the door panels can move in the direction of width of the refrigerator doors. Each of the door panels has a first interference position and a second interference position; when the side-by-side refrigerator doors are closed, the gap between the end faces of the two door panels on the opening side is δ, and the distance between the end face of each door panel on the hinge side and a corresponding side wall of the accommodating space is δ', where δ is greater than the movement distance γ in the direction of width of the accommodating space before the first interference position exits the accommodating space, and δ' is greater than the movement distance λ in the direction of width of the accommodating space before the second interference position exits the accommodating space.

Description

Door assembly of embedded refrigeration equipment and embedded 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. 202411186937.2, filed on August 26, 2024, entitled “Door assembly of embedded refrigeration equipment and embedded refrigeration equipment”, all of which are incorporated herein by reference. Technical Field

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

[0004] In today's society, rapid technological advancements have significantly driven changes in home lifestyles. Built-in furniture, a design concept that combines aesthetics with practicality, has gained widespread popularity among consumers. By cleverly integrating appliances or storage spaces into the home, built-in furniture not only effectively saves space but also significantly enhances the overall harmony and aesthetics of the home. For example, a built-in refrigerator allows it to be seamlessly integrated into the cabinetry, blending seamlessly with the kitchen decor and creating a modern and harmonious living environment. However, despite their significant advantages in enhancing home aesthetics and space utilization, built-in refrigerators still present a significant practical issue: the door can easily interfere with or collide with the cabinet sidewalls when opened, resulting in a poor user experience. Summary of the Invention

[0005] The present application proposes a door assembly for refrigeration equipment, which can solve the interference problem of door assemblies.

[0006] The present application also proposes an embedded refrigeration device.

[0007] According to an embodiment of the present application, a side-by-side door assembly of an embedded refrigeration device includes:

[0008] The double-door box includes two doors arranged in a pair, wherein the doors are rotatably connected to the refrigeration box body, wherein the refrigeration box body is used to be embedded in the accommodation space formed by the mounting body;

[0009] The double-door panels include two door panels arranged in a pair, the door panels being movably mounted on the door, the door panels being movable along the width direction of the door, and being adapted to move toward the door opening side of the door during the opening of the double-door panel;

[0010] The door panel has a first interference position and a second interference position, the first interference position is located at the inner corner of the door opening side of the door panel, and the second interference position is located at the outer corner of the hinge side of the door panel;

[0011] When the biparting door is in the closed position, the gap between the end faces of the two door panels on the door opening side is δ, and the distance between the end face of the door panel on the hinge side and the corresponding side wall of the accommodating space is δ';

[0012] δ is greater than a movement distance γ of the first interference position along the width direction of the accommodation space before the first interference position leaves the accommodation space, and δ' is greater than a movement distance λ of the second interference position along the width direction of the accommodation space before the second interference position leaves the accommodation space.

[0013] According to an embodiment of the present application, the positions on the door panel most likely to cause interference are first determined as the first interference position and the second interference position, and the positions of the first interference position and the second interference position on the door panel are determined. Based on this, the conditions that must be met for the first interference position to not cause interference are determined, as well as the conditions that must be met for the second interference position to not cause interference. This determines the relationship between the initial gap (δ and δ') of the bi-directional door assembly and the movement of the door panel to ensure normal operation of the embedded refrigeration device.

[0014] According to one embodiment of the present application, the bi-fold door includes a first door and a second door, both of which are rotatably connected to the refrigeration box body, and the bi-fold door panel includes a first door panel and a second door panel, the first door panel is movably mounted on the first door, and the second door panel is movably mounted on the second door;

[0015] The movement distance of the first interference position of the first door panel along the width direction of the accommodation space before leaving the accommodation space is γ1, and the movement distance of the first interference position of the second door panel along the width direction of the accommodation space before leaving the accommodation space is γ2.

[0016] The first door and the second door can be opened synchronously, γ1+γ2≤δ, or,

[0017] Either the first door or the second door is opened selectively, γ1≤δ and γ2≤δ.

[0018] According to one embodiment of the present application, the movement distance of the second interference position of the first door panel along the width direction of the accommodating space before leaving the accommodating space is λ1, and the movement distance of the second interference position of the second door panel along the width direction of the accommodating space before leaving the accommodating space is λ2;

[0019] The distance between the hinge-side end surface of the first door panel and the corresponding side wall of the accommodating space is δ3, and the distance between the hinge-side end surface of the second door panel and the corresponding side wall of the accommodating space is δ4;

[0020] λ1≤δ3;λ2≤δ4.

[0021] According to one embodiment of the present application, δ is positively correlated with l1, l3, h1, l4, l5, h2, the maximum Δs1 before the first interference position of the first door panel leaves the accommodation space, and the maximum Δs2 before the first interference position of the second door panel leaves the accommodation space;

[0022] Wherein, l1 is the vertical distance from the hinge axis of the first door to the inner surface of the first door panel, l3 is the vertical distance from the hinge axis of the first door to the hinge-side end surface of the first door panel, h1 is the thickness of the first door, and Δs1 is the distance the first door panel moves relative to the first door during the opening process of the first door;

[0023] l4 is the vertical distance from the hinge axis of the first door to the inner surface of the first door panel, l5 is the vertical distance from the hinge axis of the first door to the end face of the opening side of the first door panel, h2 is the thickness of the first door, and Δs2 is the distance that the first door panel moves relative to the door during the opening of the first door.

[0024] According to one embodiment of the present application, δ3 is positively correlated with l1, l3, and h1, and δ3 is negatively correlated with the maximum Δs1 before the first interference position of the first door panel leaves the accommodation space;

[0025] δ4 is positively correlated with l4, l5 and h2, and negatively correlated with the maximum Δs2 before the first interference position of the second door panel leaves the accommodating space.

[0026] According to one embodiment of the present application, δ3≥λ1=b1*cosβ1-l3;

[0027] in, δ4≥λ2=b2*cosβ2-l5

[0028] in,

[0029] δ≥γ1+γ2=a1*cosα1-l2+a2*cosα2-l6, or

[0030] δ≥γ1=a1*cosα1-l2, and δ≥γ2=a2*cosα2-l6;

[0031] Δθ1 is the opening angle of the first door, Δs1 is the distance that the first door panel moves relative to the door-opening side of the first door during the opening of the first door, l1 is the vertical distance from the hinge axis of the first door to the inner surface of the first door panel, l2 is the vertical distance from the hinge axis of the first door to the end surface of the door-opening side of the first door panel, l3 is the vertical distance from the hinge axis of the first door to the end surface of the hinge side of the first door panel, h1 is the thickness of the first door panel, a1 is the length of the side where the first interference position and the hinge axis of the door are located, α1 is the angle between the first interference position and the side where the hinge axis of the door are located and the horizontal line, b1 is the length of the side where the second interference position and the hinge axis of the door are located, and β1 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line;

[0032] Δθ2 is the opening angle of the second door, Δs2 is the distance that the second door panel moves relative to the door opening side of the second door during the opening of the second door, l4 is the vertical distance from the hinge axis of the second door to the inner surface of the second door panel, l6 is the vertical distance from the hinge axis of the second door to the end face of the door opening side of the second door panel, l5 is the vertical distance from the hinge axis of the second door to the end face of the hinge side of the second door panel, h2 is the thickness of the second door panel, a2 is the length of the side where the second interference position and the hinge axis of the door are located, α2 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line, b2 is the length of the second interference position and the side where the hinge axis of the door are located, and β2 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line.

[0033] According to one embodiment of the present application, the spacing δ satisfies: δ≤γ max ;

[0034] Among them, γ max is the value of γ when λ is zero and Δθ is Δθcrit, γ is the vertical distance that the first interference position moves toward the side wall of the corresponding accommodation space, λ is the vertical distance that the second interference position moves toward the side wall of the corresponding accommodation space, Δθ is the rotation angle of the door during the opening process, Δθ when the first interference position leaves the accommodation space is Δθcrit, γ and Δs are positively correlated, Δs is the distance that the door panel moves relative to the opening side of the door during the opening process.

[0035] According to one embodiment of the present application, the spacing δ' satisfies: δ'≤λ max ;

[0036] λ max is the value of λ corresponding to when γ is zero and Δθ is Δθcrit, λ and Δs are negatively correlated, γ is the vertical distance that the first interference position moves toward the side wall of the corresponding accommodation space, λ is the vertical distance that the second interference position moves toward the side wall of the corresponding accommodation space, Δθ is the rotation angle of the door during the opening process, Δθ when the first interference position leaves the accommodation space is Δθcrit, γ and Δs are positively correlated, and Δs is the distance that the door panel moves relative to the opening side of the door during the opening process.

[0037] According to one embodiment of the present application, the hinge axis is a movable axis.

[0038] According to one embodiment of the present application, l1 is 5 mm to 50 mm, l2 is 240 mm to 700 mm, l3 is (300 mm to 700 mm) - l2, h1 is 10 mm to 25 mm, and δ3 is 0.5 mm to 5 mm;

[0039] l4 is 5mm-50mm, l5 is 240mm-700mm, l6 is (300mm to 700mm)-l5, h2 is 10mm to 25mm, and δ4 is 0.5mm-5mm.

[0040] According to one embodiment of the present application, l1 is 5mm-50mm, l2 is 240mm-700mm, l3 is (300mm to 700mm)-l2, l4 is 5mm-50mm, l5 is 240mm-700mm, l6 is (300mm to 700mm)-l5, h2 is 10mm to 25mm, and δ is 1mm-10mm.

[0041] An embedded refrigeration device according to an embodiment of the present application includes:

[0042] A refrigeration box body, adapted to be embedded in the accommodation space;

[0043] The above-mentioned double-door assembly.

[0044] 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

[0045] 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.

[0046] 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.

[0047] FIG2 is a simplified schematic diagram of the boundary conditions that need to be met for the door panel to not interfere with the cabinet panels on both sides during the door opening and closing process provided by an embodiment of the present application.

[0048] FIG3 is a partial enlarged schematic diagram of FIG2;

[0049] FIG4 is an exploded view of a refrigeration device provided in an embodiment of the present application;

[0050] FIG5 is a schematic diagram of a sliding door mechanism according to an embodiment of the present application;

[0051] FIG6 is a second schematic diagram of the sliding door mechanism provided in an embodiment of the present application;

[0052] FIG7 is an exploded view of a sliding door mechanism provided in an embodiment of the present application;

[0053] FIG8 is a schematic structural diagram of a sliding mechanism provided in an embodiment of the present application;

[0054] FIG9 is a schematic structural diagram of a guide member provided in an embodiment of the present application;

[0055] 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;

[0056] FIG12 is a second schematic diagram of the first driven guide rail mechanism provided in an embodiment of the present application;

[0057] FIG13 is a schematic diagram of a second driven guide rail mechanism according to an embodiment of the present application;

[0058] FIG14 is a second schematic diagram of the second driven guide rail mechanism provided in an embodiment of the present application;

[0059] FIG15 is a schematic diagram of a door panel provided in an embodiment of the present application;

[0060] FIG16 is a schematic diagram of a first hook and a second hook provided in an embodiment of the present application;

[0061] 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;

[0062] 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;

[0063] FIG19 is a schematic diagram of a first end cap provided in an embodiment of the present application;

[0064] FIG20 is a schematic diagram of a second end cap provided in an embodiment of the present application;

[0065] 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;

[0066] 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;

[0067] FIG23 is a schematic diagram of a first primary decorative cover according to an embodiment of the present application;

[0068] FIG24 is a second schematic diagram of the first main decorative cover provided in an embodiment of the present application;

[0069] FIG25 is a schematic diagram of a first decorative cover provided in an embodiment of the present application;

[0070] FIG26 is a schematic diagram of a second primary decorative cover according to an embodiment of the present application;

[0071] FIG27 is a second schematic diagram of the second main decorative cover provided in an embodiment of the present application;

[0072] FIG28 is a schematic diagram of a second decorative cover provided in an embodiment of the present application;

[0073] FIG29 is a schematic diagram of a third end cap provided in an embodiment of the present application;

[0074] FIG30 is a schematic diagram of a fourth end cap provided in an embodiment of the present application;

[0075] FIG31 is a schematic diagram of a third primary decorative cover according to an embodiment of the present application;

[0076] FIG32 is a second schematic diagram of the third main decorative cover provided in an embodiment of the present application;

[0077] FIG33 is a schematic diagram of a third decorative cover provided in an embodiment of the present application;

[0078] FIG34 is a schematic diagram of a fourth primary decorative cover according to an embodiment of the present application;

[0079] FIG35 is a second schematic diagram of the fourth primary decorative cover provided in an embodiment of the present application;

[0080] FIG36 is a schematic diagram of the fourth decorative cover provided in an embodiment of the present application.

[0081] Reference numerals:

[0082] 1. Box body; 110. First connecting hole; 120. First beam body; 121. Second connecting hole; 130. Second beam body; 131. Fourth connecting hole; 132. Third connecting hole;

[0083] 2. Box door;

[0084] 210, first end cap; 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;

[0085] 220, second end cap; 221, first guide rail fixing seat; 223, second mounting hole; 224, third mounting hole; 225, second ridge; 227, third ridge;

[0086] 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;

[0087] 320, fourth end cap; 321, fourth avoidance opening; 322, third avoidance opening; 323, fifth mounting slot; 324, sixth mounting slot; 325, fifth mounting hole; 327, ninth ridge;

[0088] 4. First hinge; 5. Second hinge; 6. Third hinge;

[0089] 7. Sliding door mechanism; 701. First fixing seat; 702. Second fixing seat; 703. Second adjusting member; 704. First adjusting member; 705. First bearing; 706. Flexible cable; 707. First rotating shaft fixing seat; 708. Pin; 709. Drawbar; 710. Second rotating shaft fixing seat; 711. Connector; 712. First connecting block; 713. Second slider; 714. First slider; 715. Third bearing; 716. Second bearing; 717. First base;

[0090] 730, guide member; 731, guide structure; 732, fixing plate; 733, slide groove; 734, sliding sleeve; 7311, first limiting groove; 7312, second limiting groove;

[0091] 740, sliding member; 741, guide rod; 742, sliding block; 743, first connecting arm; 744, second connecting arm; 745, sliding contact;

[0092] 760, driving rod; 770, elastic member;

[0093] 750, connecting rod assembly; 751, first connecting rod; 752, second connecting rod; 753, first hinge axis; 754, second hinge axis; 755, third hinge axis;

[0094] 8. First driven guide rail mechanism; 801. Third fixing seat; 802. Fourth fixing seat; 803. Fourth adjusting member; 804. Third adjusting member; 812. Second connecting block; 813. Third sliding block; 817. Second base;

[0095] 9. Second driven guide rail mechanism; 901. Fifth fixed seat; 902. Third base; 903. Fourth slider; 904. Sixth fixed seat; 905. Third connecting block;

[0096] 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;

[0097] 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;

[0098] 15. Third main decorative cover; 1501. Sixth notch; 1503. Fourth card slot;

[0099] 16. Fourth main decorative cover; 1601. Seventh notch; 1602. Eighth notch; 1603. Tenth notch; 1604. Ninth notch; 1605. Sixth card slot; 1606. Fifth card slot;

[0100] 17. First decorative cover; 18. Second decorative cover; 1801. Buckle handle; 19. Third decorative cover; 20. Fourth decorative cover;

[0101] 21. Door panel; 2111. First hook; 2112. Second hook;

[0102] 60. Cabinet; 601. First cabinet panel; 602. Second cabinet panel. DETAILED DESCRIPTION

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] In today's society, rapid technological advancements have significantly driven changes in home lifestyles. Built-in furniture, a design concept that combines aesthetics with practicality, has gained widespread popularity among consumers. By cleverly integrating appliances or storage spaces into the home, built-in furniture not only effectively saves space but also significantly enhances the overall harmony and aesthetics of the home. For example, a built-in refrigerator allows it to be seamlessly integrated into the cabinetry, blending seamlessly with the kitchen decor and creating a modern and harmonious living environment. However, despite their significant advantages in enhancing home aesthetics and space utilization, built-in refrigerators still present a significant practical issue: the door can easily interfere with or collide with the cabinet sidewalls when opened, resulting in a poor user experience.

[0109] Specifically, when a built-in refrigerator (hereinafter referred to as refrigerator) satisfies the user's requirements for two different types of refrigerators, namely, pure flat and fully embedded, the refrigerator door body (hereinafter referred to as door) will be connected to the cabinet door panel (hereinafter referred to as door panel), resulting in the thickening of the entire door body assembly. As a result, after the refrigerator is pushed into the storage space of the cabinet, the door body assembly with the cabinet door will interfere with the cabinet during the process of opening and closing the door, relying only on the refrigerator's original single-axis or double-axis structural hinges, resulting in the inability to open and use the door normally. Therefore, the present application proposes a door body assembly that can slide relative to the door and the door panel, so that in the process of opening the door body assembly, the door panel can slide toward the side where the door is opened (that is, the door opening side), so that in the process of opening the door, the hinge side still maintains the thickness of the door itself, which is consistent with the door opening scene without a door panel; in the process of closing the door, the door panel will move toward the hinge side to return to the state before the door is opened; thereby achieving the embedded installation requirements of the refrigerator with or without a door panel.

[0110] For aesthetic reasons, the gap between door panels in a row of cabinets is usually within the range of 0mm-5mm. Therefore, when the door panels are first opened, the sliding door panels may interfere with the cabinet panels on both sides. After the door is opened to a certain angle, the hinge side of the door panel may interfere with the cabinet panel.

[0111] Based on this, the present application proposes a double-door assembly of an embedded refrigeration device, including double-doors and double-door panels. Referring to Figures 1 and 2, the double-doors include two doors 2 arranged in pairs, and the doors 2 can be rotatably connected to the refrigeration box body 1, wherein the refrigeration box body 1 is used to be 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 wall corner, or the installation body can also refer to other components, as long as an accommodation space can be formed. The following description will be based on the installation body being the cabinet 60 as an example. The double-door panels include two door panels 21 arranged in pairs, and the door panels 21 are movably mounted on the door 2. The door panels 21 can move along the width direction of the door 2. During the opening process of the door 2, the door panels 21 are suitable for moving toward the door opening side of the door 2. The door panel has a first interference position and a second interference position. The first interference position is located at the inner corner of the door panel on the door opening side, corresponding to c1 and c2 in Figures 1 and 2. The second interference position is located at the outer corner of the door panel on the hinge side, corresponding to d1 and d2 in Figures 1 and 2. The "inside" and "outside" herein are relative to the refrigeration cabinet 1, with the side facing the refrigeration cabinet 1 being the "inside" side and the side facing away from the refrigeration cabinet 1 being the "outside" side. Since Figure 2 is a top view, the first interference position and the second interference position appear as a single point in Figure 2. For the door panel 21, the first interference position and the second interference position are each a vertical line. If the inner corner of the door opening side is arc-shaped, the first interference position is the point on the arc segment farthest from the hinge axis 101 of the door. Similarly, if the outer corner of the door panel on the hinge side is arc-shaped, the second interference position is the point on the arc segment farthest from the hinge axis 101 of the door.

[0112] According to an embodiment of the present application, in conjunction with Figures 2 to 3, when the bi-parting door is in the closed position, the gap between the end faces of the door opening sides of the two door panels is δ, and the spacing between the end faces of the hinge side of the door panels and the corresponding side walls of the accommodating space is δ'; δ is greater than the movement distance γ along the width direction of the accommodating space before the first interference position leaves the accommodating space, γ is also the vertical distance that the first interference position moves toward the side wall of the corresponding accommodating space. δ' is greater than the movement distance λ along the width direction of the accommodating space before the second interference position leaves the accommodating space, λ is also the vertical distance that the second interference position moves toward the side wall of the corresponding accommodating space. When the door is in the closed position, the width direction of the door is consistent with the width direction of the accommodating space. As the door is opened, there is an angle between the width direction of the door and the width direction of the accommodating space.

[0113] According to an embodiment of the present application, the positions on the door panel most likely to cause interference are first determined as the first interference position and the second interference position, and the positions of the first interference position and the second interference position on the door panel are determined. Based on this, the conditions that must be met for the first interference position to not cause interference are determined, as well as the conditions that must be met for the second interference position to not cause interference. This determines the relationship between the initial gap (δ and δ') of the bi-directional door assembly and the movement of the door panel to ensure normal operation of the embedded refrigeration device.

[0114] According to the embodiments of the present application, the bi-directional door assembly includes at least two scenarios: The first scenario involves placing two single-door refrigeration units into the same storage space; in this case, the two independent refrigeration units have opposing doors, forming a bi-directional door assembly. The second scenario involves a single refrigeration unit with a bi-directional door assembly. In this case, the initial gap δ between the two doors may be determined from the outset, taking into account the performance of the refrigeration unit, the size of its vertical beam, and the size of the refrigeration compartment. Therefore, δ' needs to be further determined.

[0115] According to an embodiment of the present application, the bi-fold door includes a first door 201 and a second door 202, and the first door 201 and the second door 202 can be rotatably connected to the refrigeration box body 1, and the bi-fold door panel includes a first door panel 2101 and a second door panel 2102, the first door panel 2101 is movably mounted on the first door 201, and the second door panel 2102 is movably mounted on the second door 202; the movement distance of the first interference position of the first door panel 2101 along the width direction of the accommodating space before leaving the accommodating space is γ1, and the movement distance of the first interference position of the second door panel 2102 along the width direction of the accommodating space before leaving the accommodating space is γ2. Among them, the distance between the first door panel 2101 and the center line of the two door panels is δ1, and the distance between the second door panel 2102 and the center line of the two door panels is δ2. It is worth mentioning that the bi-fold door assembly has a variety of different usage scenarios. If the first door 201 and the second door 202 are required to be opened at the same time, the requirement for δ will be relatively high, γ1+γ2≤δ. If it is only required that the first door 201 and the second door 202 can be opened at different times, the requirement for δ is not so high, as long as γ1≤δ and γ2≤δ, that is, δ is greater than or equal to the larger one of γ1 and γ2.

[0116] According to an embodiment of the present application, the distance that the second interference position of the first door panel 2101 moves along the width direction of the accommodating space before leaving the accommodating space is λ1, which is also the vertical distance that the second interference position of the first door panel 2101 moves toward the side wall of the corresponding accommodating space. The distance that the second interference position of the second door panel 2102 moves along the width direction of the accommodating space before leaving the accommodating space is λ2, which is also the vertical distance that the second interference position of the second door panel 2102 moves toward the side wall of the corresponding accommodating space. The spacing between the end face of the hinge side of the first door panel 2101 and the side wall of the accommodating space corresponding to it is δ3, and the spacing between the end face of the hinge side of the second door panel 2102 and the side wall of the accommodating space corresponding to it is δ4; that is, the spacing δ' mentioned above includes δ3 and δ4. Among them, λ1≤δ3; λ2≤δ4.

[0117] Combined with Figures 2 to 3, the hinge axis 101 of the door corresponds to points o1 and o2 in the figure, l1 is the vertical distance from the hinge axis 101 of the first door 201 to the inner surface of the first door panel 2101, l2 is the vertical distance from the hinge axis 101 of the first door 201 to the end face of the opening side of the first door panel 2101, l3 is the vertical distance from the hinge axis 101 of the first door 201 to the end face of the hinge side of the door panel, h1 is the thickness of the first door panel 2101, and Δs1 is the distance that the first door panel 2101 moves relative to the first door 201 during the opening of the first door 201.

[0118] l4 is the vertical distance from the hinge axis 101 of the second door 202 to the end face of the door opening side of its plate, l5 is the vertical distance from the hinge axis 101 of the second door 202 to the end face of the hinge side of the second door panel 2102, l6 is the vertical distance from the hinge axis 101 of the second door 202 to the end face of the door opening side of the second door panel 2102, h2 is the thickness of the second door panel 2102, and Δs2 is the distance that the second door panel 2102 moves relative to the second door 202 during the opening process of the second door 202.

[0119] According to the embodiments of the present application, it can be understood that when l1, l3, and h1 are larger, the door opening side of the first door panel 2101 is more likely to interfere. Similarly, when l4, l5, and h2 are larger, the door opening side of the second door panel 2102 is more likely to interfere. Therefore, δ is positively correlated with l1, l3, h1, l4, l5, and h2. In addition, before the first interference position of the first door panel 2101 leaves the storage space, the larger the distance Δs1 that the first door panel 2101 moves relative to the first door 201, the larger δ1 is, which prevents the first door panel 2101 from colliding with the second door panel 2102 during movement. Similarly, before the first interference position of the second door panel 2102 leaves the storage space, the larger the distance Δs2 that the second door panel 2102 moves relative to the first door 201, the larger δ2 is, which prevents the second door panel 2102 from colliding with the first door panel 2101 during movement. That is, the maximum Δs1 before the first interference position of the first door panel 2101 leaves the accommodation space and the maximum Δs2 before the first interference position of the second door panel 2102 leaves the accommodation space are positively correlated and positively correlated with δ.

[0120] According to an embodiment of the present application, the larger l1, l3, and h1 are, the easier it is for the hinged side of the door panel of the first box door 201 to interfere with the first cabinet panel 601, and thus δ3 needs to be designed to be larger, that is, δ3 is positively correlated with l1, l3, and h1. In addition, the larger the maximum Δs1 before the first interference position of the first door panel 2101 leaves the accommodating space, the smaller the δ3 required to ensure that the hinged side of the first door panel 2101 does not interfere with the cabinet panel, and thus δ3 is negatively correlated with the maximum Δs1 before the first interference position of the first door panel 2101 leaves the accommodating space. Similarly, δ4 is positively correlated with l4, l5, and h2, and negatively correlated with the maximum Δs2 before the first interference position of the second door panel 2102 leaves the accommodating space.

[0121] In Figures 2 and 3, the position relationship and angle relationship of the refrigeration equipment (refrigerator) when the door is not initially opened and when the door is opened to any angle (indicated by the dotted line in the figure) are simplified and annotated. The corners where interference may occur during the door opening process are marked with black dots in the figure. Among them, for the first door panel 2101, the first interference position c1 point is likely to interfere with the point on the right side of the second door panel 2102, that is, the point on the right side of the second door panel 2102 is the critical point for point c1 to escape interference (leave the accommodation space) during the door opening and closing process; similarly, for the second door panel 2102, the first interference position c2 point is likely to interfere with the point on the left side of the first door panel 2101, that is, the point on the left side of the first door panel 2101 is the critical point for point c2 to escape interference (leave the accommodation space) during the door opening and closing process. For the first door panel 2101, its second interference position d1 is the corner point on the right side of the door panel, which is on the outside. This is the corner point where the right end of the door panel first interferes with the left end of the first cabinet panel 601 on the right side during the door opening and closing process. Similarly, for the second door panel 2102, its second interference position d2 is the corner point on the left side of the door panel, which is on the outside. This is the corner point where the left end of the door panel first interferes with the left end of the second cabinet panel 602 on the left side during the door opening and closing process.

[0122] As can be seen from Figures 2 and 3, taking the first door panel 2101 as an example, in the initial position, on the left side of the hinge axis 101, the angle between the hypotenuse o1c1 between point c1 and the hinge axis 101 and the inner side of the first door panel 2101 is θ10, and the angle when the door is opened to any position is Δθ1. At this position, the hypotenuse o1c1, the distance l2 and the distance l1 are represented by dotted lines; in the initial position, on the right side of the hinge axis 101, the hypotenuse between point d1 and the hinge axis 101 is o1d1. When the door is opened to any position with an angle of Δθ1, at this position, the hypotenuse o1d1, the distance l1+h1 and the distance l3 are represented by dotted lines. As can be seen from Figures 2 and 3, during the door opening process, if the first door panel 2101 does not move along the door toward the door opening side, as the opening angle increases, point d1 will soon interfere with the left end face of the first cabinet panel 601, causing the first door 201 to be unable to open. Therefore, in order to avoid interference affecting the door opening, it is necessary to move the corresponding first door panel 2101 toward the door opening side by a distance Δs1 when the door body opening angle is Δθ1 during the door opening process. Assuming that after the first door panel 2101 moves a distance Δs1, the length of the side where point c1 and the hinge axis 101 (i.e., o1) are located is set to a1, and the angle between it and the horizontal line in the figure is set to α1. At this time, the length of the side where point d1 and o1 are located is set to b1, and the angle between it and the horizontal line in the figure is set to β1. The horizontal displacement of point c1 on the cabinet board 3 at this position is set to γ1, and the horizontal distance between point d1 on the cabinet board 3 at this position and the right end face of the cabinet board 3 at the initial position is set to λ1.

[0123] Taking the second door panel 2102 as an example, in the initial position, on the right side of the hinge axis 101, the angle between the hypotenuse o2c2 between point c2 and the hinge axis 101 and the inner side of the second door panel 2102 is θ20, and the angle when the door is opened to any position is Δθ2. At this position, the hypotenuse o2c2, the distance l6 and the distance l4 are represented by dotted lines; in the initial position, on the left side of the hinge axis 101, the hypotenuse between point d2 and the hinge axis 101 is o2d2. When the door is opened to any position with an angle of Δθ2, at this position, the hypotenuse o2d2, the distance l4+h2 and the distance l5 are represented by dotted lines. As can be seen from Figures 2 and 3, during the opening process of the door, if the second door panel 2102 does not move along the door toward the door opening side, as the opening angle increases, point d2 will soon interfere with the right end face of the second cabinet panel 602, resulting in the second door 202 being unable to open. Therefore, in order to avoid interference affecting the door opening, it is necessary to move the corresponding second door panel 2102 toward the door opening side by a distance Δs2 when the door opening angle is Δθ2 during the door opening process. Assume that after the second door panel 2102 moves a distance Δs2, the length of the side where point c2 and the hinge axis 101 (that is, o2) are located is set to a2, and the angle between it and the horizontal line in the figure is set to α2. At this time, the length of the side where point d2 and o2 are located is set to b2, and the angle between it and the horizontal line in the figure is set to β2. The horizontal displacement of point c2 on the second door panel 2102 at this position is set to γ2, and the horizontal distance between point d2 on the second door panel 2102 at this position and the right end face of the second door panel 2102 at the initial position is set to λ2.

[0124] In one embodiment, δ3≥λ1=b1*cosβ1-l3.

[0125] in,

[0126] As previously mentioned, Δθ1 is the angle of rotation during the door opening process, and Δs1 is the distance the first door panel 2101 moves relative to the opening side of the first door 201 during the opening process. Therefore, if l1, l3, and h1 are determined, the relationship between δ3 and Δs1 can be determined.

[0127] In one embodiment, δ4≥λ2=b2*cosβ2-l5.

[0128] in,

[0129] Therefore, when l4, l5 and h2 are determined, the relationship between δ4 and Δs2 can be obtained.

[0130] According to an embodiment of the present application, when the first door 201 and the second door 202 need to be opened at the same time, at this time: δ≥γ1+γ2=a1*cosα1-l2+a2*cosα2-l6.

[0131] When the first door 201 and the second door 202 only need to be able to be opened successively, then δ≥γ1=a1*cosα1-l2, and δ≥γ2=a2*cosα2-l6.

[0132] According to the embodiments of the present application,

[0133] Δθ1 is the opening angle of the first door, Δs1 is the distance that the first door panel moves relative to the opening side of the first door during the opening of the first door, l1 is the vertical distance from the hinge axis of the first door to the inner surface of the first door panel, l2 is the vertical distance from the hinge axis of the first door to the end face of the opening side of the first door panel, l3 is the vertical distance from the hinge axis of the first door to the end face of the hinge side of the first door panel, h1 is the thickness of the first door panel, a1 is the length of the side where the first interference position and the hinge axis of the door are located, α1 is the angle between the first interference position and the side where the hinge axis of the door are located and the horizontal line, b1 is the length of the side where the second interference position and the hinge axis of the door are located, and β1 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line.

[0134] Δθ2 is the opening angle of the second door, Δs2 is the distance that the second door panel moves relative to the door opening side of the second door during the opening of the second door, l4 is the vertical distance from the hinge axis of the second door to the inner surface of the second door panel, l6 is the vertical distance from the hinge axis of the second door to the end face of the door opening side of the second door panel, l5 is the vertical distance from the hinge axis of the second door to the end face of the hinge side of the second door panel, h2 is the thickness of the second door panel, a2 is the length of the side where the second interference position and the hinge axis of the door are located, α2 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line, b2 is the length of the second interference position and the side where the hinge axis of the door are located, and β2 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line.

[0135] According to an embodiment of the present application, when the first door panel 2101 and the second door panel 2102 have the same width, during the door opening and closing process, the horizontal displacements of the first door panel 2101 and the second door panel 2102 are preferably γ1≤δ1=δ / 2 and γ2≤δ2=δ / 2.

[0136] The above formulas for calculating δ, δ3, and δ4 do not constitute a limitation on δ, δ3, and δ4. For example, the above formulas may also include correction coefficients or correction parameters. Furthermore, the above formulas are based on the case where the hinge axis 101 is determined. If the door (at least one of the first door 201 and the second door 202) is installed using a biaxial hinge or a movable hinge, the hinge axis 101 will change as the door is opened. Consequently, the formulas for calculating δ, δ3, and δ4 will also adapt to this change, requiring the calculation of the travel distance of the hinge axis 101. Furthermore, if there is an installation gap between the door panel and the door, then h1 in the above formulas is the distance between the sliding surface of the first door panel 2101 and the outer surface of the first door panel 2101. h2 is the distance between the sliding surface of the second door panel 2102 and the outer surface of the second door panel 2102. l1 is the distance between the hinge point of the first door 201 and the sliding surface of the first door panel 2101. l4 is the distance from the hinge point of the second door 202 to the sliding surface of the second door panel 2102.

[0137] According to the embodiments of this application, while ensuring that the bi-directional door assembly does not interfere with each other, and to ensure the aesthetics and safety of the embedded refrigeration equipment, as previously mentioned, the initial gap between the two sides of the door panel generally does not exceed 5 mm. For the bi-directional door assembly, the embodiments of this application further provide upper limits for δ and δ'.

[0138] The spacing δ satisfies: δ≤γ max .

[0139] γ max is the upper limit of δ, corresponding to λ being zero (that is, λ1 and λ2 being zero), and Δθ being the value of γ corresponding to the critical value of Δθcrit.

[0140] Among them, λ being zero means that δ3 and δ4 can be zero at this time, that is, the initial gap between the hinge side of the door panel and the cabinet panel (the first cabinet panel 601 or the second cabinet panel 602) can be zero or infinitely close to zero. At this time, in order to ensure that the hinge side of the door panel does not interfere with the cabinet panel, the γmax of the corresponding door opening side is the required maximum γmax, and thus the maximum δ does not need to exceed γmax.

[0141] According to an embodiment of the present application, the spacing δ' satisfies: δ'≤λ max .

[0142] λ max is the upper limit of δ', corresponding to γ ​​being zero (that is, γ1 and γ2 being zero), and Δθ being the value of λ corresponding to the critical value of Δθcrit.

[0143] According to an embodiment of the present application, during the installation of the embedded refrigeration device, δ and δ' can be manually controlled. Of course, corresponding limit components can also be provided on the door opening side and hinge side of the embedded refrigeration device to ensure that during installation, the initial gap between the door panel on the door opening side is δ, and the initial gap between the door panel on the hinge side and the cabinet is δ'. Alternatively, an auxiliary installation tool can be provided, the dimensions of which correspond to the dimensions of δ and δ', respectively. Then, during the installation process, the auxiliary installation tool can be used to ensure that the initial gap between the door panel and the cabinet meets the above settings.

[0144] According to an embodiment of the present application, the relative motion between the door panel and the door is determined by a sliding mechanism or a traction mechanism that drives the sliding mechanism. In the case where the relative motion between the door panel and the door is determined by the sliding mechanism, once the sliding mechanism is determined, the door panel movement amounts Δs1 and Δs2 are determined, and the value range of δ and the value range of δ' can be obtained from Δs1 and Δs2.

[0145] Alternatively, according to an embodiment of the present application, when δ (δ1 and δ2) and δ' (δ3 and δ4) are determined, in this case, the functional relationship between Δs1 and Δs2 can be determined by δ and δ', and then a sliding mechanism or traction cabinet that meets the requirements is obtained based on Δs1 and Δs2. Alternatively, when the width of the accommodating space is determined, and the double-door components are determined except for Δs1 and Δs2, the specific values ​​of δ and δ' can be obtained at this time, and then Δs at this time can be obtained based on δ and δ'. Further, when the width of the accommodating space is determined, the specific values ​​of δ and δ' can be obtained at this time, and in order to ensure beautiful and reliable installation, generally δ1 = δ3, δ2 = δ4, and then δ and δ' can be obtained respectively at this time, and then Δs at this time can be obtained based on δ and δ'.

[0146] According to an embodiment of the present application, l1 is 5 mm to 50 mm, l2 is 240 mm to 700 mm, l3 is (300 mm to 700 mm) - l2, h1 is 10 mm to 25 mm, and δ3 is 0.5 mm to 5 mm.

[0147] According to an embodiment of the present application, l4 is 5mm-50mm, l5 is 240mm-700mm, l6 is (300mm to 700mm)-l5, h2 is 10mm to 25mm, and δ4 is 0.5mm-5mm.

[0148] According to an embodiment of the present application, l1 is 5mm-50mm, l2 is 240mm-700mm, l3 is (300mm to 700mm)-l2, l4 is 5mm-50mm, l5 is 240mm-700mm, l6 is (300mm to 700mm)-l5, h2 is 10mm to 25mm, and δ is 1mm-10mm.

[0149] According to an embodiment of the present application, the vertical distance from the hinge axis of the door to the inner surface of the door panel is l1, the vertical distance from the hinge axis of the door to the end face of the door panel on the door opening side is l2, the vertical distance from the hinge axis of the door to the end face of the hinge side of the door panel is l3, the thickness of the door panel is h, l1 is 5mm-50mm, l2 is 240mm-700mm, l3 is (300mm to 700mm) minus l2, and h is 10mm to 25mm. In this case, the overall size of the door body assembly obtained is appropriate, and it is easy to ensure the confidentiality of the refrigeration equipment, and it can prevent interference with the door body assembly. Among them, commonly used values ​​of l2 include 597mm, 600mm, 747mm, 750mm, 607mm, and 610mm. Commonly used values ​​of h include 16mm, 18mm, 20mm, 22mm, and 25mm.

[0150] According to the embodiment of the present application, the movement distance Δs does not change by more than 3 mm for every 0.5° increase in the door opening angle of the door assembly. This ensures that the door panel moves as evenly as possible, preventing sudden large-angle movement of the door panel. This further makes the door panel as concealed as possible, preventing users from panicking about the movement of the door panel.

[0151] According to an embodiment of the present application, the movement distance Δs before the first interference position leaves the accommodation space does not exceed 5 mm. For example, the angle corresponding to the first interference position leaving the accommodation space is 2°-5°. Because Δs is small during this process, interference between the door panel and the accommodation space can be avoided.

[0152] In one embodiment, when the opening angle Δθ of the door assembly is 0.5°, the moving distance Δs is 0.3mm to 0.5mm, and the change in the moving distance Δs does not exceed 3mm for every 0.5° increase in the opening angle of the door assembly.

[0153] According to the embodiment of the present application, the relevant parameters of the door assembly during the door opening process can be referred to the following table:

[0154] Table 1

[0155] According to an embodiment of the present application, when the dimensions of the door assembly are limited to the dimensions in Table 1 above, γ is between -24 mm and 0.4 mm, λ is between -1 mm and 2.2 mm, and γ≤δ1, λ≤δ2.

[0156] According to an embodiment of the present application, when the size of the door body assembly is limited to the size in Table 1 above, during the opening process of the door panel assembly, the angle between the line connecting the first interference position and the hinge axis of the box door and the horizontal position is set to α, and the angle between the line connecting the second interference position and the hinge axis of the box door and the horizontal position is set to β, the angle α is 2.4°-21°, and the angle β is 66° to 72°.

[0157] According to an embodiment of the present application, the sliding door mechanism 7 includes a sliding mechanism and a traction mechanism.

[0158] 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.

[0159] 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.

[0160] 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.

[0161] 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.

[0162] 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.

[0163] 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.

[0164] 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.

[0165] It should be noted that, in actual 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.

[0166] 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.

[0167] 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.

[0168] 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.

[0169] 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.

[0170] 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.

[0171] It should be noted that 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.

[0172] 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.

[0173] 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.

[0174] 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.

[0175] Specifically, the second slider 713 and the first slider 714 are both provided with a connector 711 for fixing the flexible cable 706 .

[0176] 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.

[0177] 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.

[0178] 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.

[0179] 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.

[0180] 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.

[0181] 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.

[0182] 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.

[0183] 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.

[0184] 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.

[0185] 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.

[0186] 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.

[0187] 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.

[0188] 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.

[0189] 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 .

[0190] 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.

[0191] 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.

[0192] 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 .

[0193] In an embodiment of another aspect of the present application, as shown in Figures 1 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.

[0194] 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.

[0195] 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.

[0196] 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.

[0197] 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 .

[0198] 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.

[0199] 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.

[0200] 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.

[0201] 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 .

[0202] 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.

[0203] 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.

[0204] 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.

[0205] 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.

[0206] 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.

[0207] Optionally, the connecting rod assembly 750 may be a parallel four-bar linkage or a crank rocker mechanism.

[0208] 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.

[0209] 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 .

[0210] 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.

[0211] 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.

[0212] 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.

[0213] 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.

[0214] 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.

[0215] 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.

[0216] In some embodiments, as shown in FIG. 8 , the driving rod 760 includes a linkage.

[0217] 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.

[0218] 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.

[0219] 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.

[0220] 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.

[0221] 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.

[0222] 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.

[0223] 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.

[0224] In some embodiments, as shown in FIG. 9 , the guide structure 731 includes: a first limiting groove 7311 .

[0225] The first limiting groove 7311 extends along the thickness direction.

[0226] 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 .

[0227] 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.

[0228] 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.

[0229] In some embodiments, as shown in FIG. 9 , the guide structure 731 further includes: a second limiting groove 7312 .

[0230] The second limiting groove 7312 extends along the width direction and is communicated with the first limiting groove 7311 .

[0231] 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.

[0232] The second hinge axis 754 and the third hinge axis 755 are respectively arranged on both sides of the first limiting groove 7311 .

[0233] 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.

[0234] In some embodiments, as shown in FIG. 8 , the sliding mechanism further includes an elastic member 770 .

[0235] The elastic member 770 is disposed between the guide member 730 and the sliding member 740 .

[0236] When the connecting rod 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.

[0237] 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] Specifically, the elastic member 770 may be an elastic sheet, an elastic block, or a spring.

[0242] 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.

[0243] 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 .

[0244] The fixing plate 732 is configured to be provided on the box door.

[0245] 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.

[0246] 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.

[0247] 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.

[0248] 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.

[0249] The elastic member 770 is disposed between the sliding sleeve 734 and the sliding contact 745 .

[0250] 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.

[0251] 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.

[0252] 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 .

[0253] 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.

[0254] 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 .

[0255] 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.

[0256] The sliding sleeve 734 and the sliding contact 745 are located between the first connecting arm 743 and the second connecting arm 744 .

[0257] 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.

[0258] 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.

[0259] 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.

[0260] 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.

[0261] 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.

[0262] 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.

[0263] 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.

[0264] 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.

[0265] 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.

[0266] 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.

[0267] 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.

[0268] 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.

[0269] 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.

[0270] 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 .

[0271] 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.

[0272] 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 be away from or close to the hinge axis of the door 2.

[0273] 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.

[0274] 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.

[0275] 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.

[0276] 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.

[0277] 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.

[0278] 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.

[0279] 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.

[0280] 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.

[0281] 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.

[0282] 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.

[0283] 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.

[0284] 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.

[0285] 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.

[0286] 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.

[0287] 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.

[0288] 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.

[0289] 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.

[0290] 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.

[0291] 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.

[0292] 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.

[0293] 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.

[0294] 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.

[0295] 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.

[0296] 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.

[0297] 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 .

[0298] 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.

[0299] 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.

[0300] 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.

[0301] 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.

[0302] 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.

[0303] 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.

[0304] The structure of the second hook 2112 is similar to that of the first hook 2111 and will not be described again here.

[0305] 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.

[0306] 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.

[0307] 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.

[0308] 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.

[0309] 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.

[0310] 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.

[0311] 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.

[0312] 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.

[0313] 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.

[0314] 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.

[0315] 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.

[0316] 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.

[0317] 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.

[0318] 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.

[0319] 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.

[0320] 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.

[0321] 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.

[0322] 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 .

[0323] 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.

[0324] 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.

[0325] 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.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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 .

[0330] 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.

[0331] 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.

[0332] 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.

[0333] 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 .

[0334] 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.

[0335] 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.

[0336] 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 .

[0337] 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.

[0338] 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.

[0339] 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.

[0340] As shown in Figure 29, the third end cap 310 has second hinge holes 314 at both ends for rotational connection with 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 the 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 for interlocking with the third primary decorative cover 15 and the third secondary decorative cover 19.

[0341] As shown in Figures 31 and 32 , the third primary decorative cover 15 has two sixth notches 1501 corresponding to the second driven rail mechanism 9. It also has multiple fourth slots 1503 corresponding to the eighth ridge 313. When the third primary decorative cover 15 is engaged with the third end cap 310, the latch slot 316 of the third end cap 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.

[0342] 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.

[0343] 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.

[0344] 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.

[0345] 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.

[0346] 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.

[0347] 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 should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present application do not depart from the scope of the technical solutions of the present application and should be encompassed by the claims of the present application.

Claims

1. A side-by-side door assembly for an embedded refrigeration device, comprising: The double-leaf door comprises two doors arranged in pairs, wherein the doors are rotatably connected to the refrigeration box body, wherein the refrigeration box body is used to be embedded in the accommodation space formed by the installation body; The double-door panels include two door panels arranged in pairs, the door panels are movably mounted on the door, the door panels can move along the width direction of the door, and during the opening process of the double-door, the door panels are adapted to move toward the door opening side of the door; The door panel has a first interference position and a second interference position, the first interference position is located at the inner corner of the door opening side of the door panel, and the second interference position is located at the outer corner of the hinge side of the door panel; When the double-door is in the closed position, the gap between the end faces of the two door panels on the door opening side is δ, and the distance between the end face of the door panel on the hinge side and the side wall of the accommodating space corresponding thereto is δ'; δ is greater than a movement distance γ of the first interference position along the width direction of the accommodation space before the first interference position leaves the accommodation space, and δ' is greater than a movement distance λ of the second interference position along the width direction of the accommodation space before the second interference position leaves the accommodation space.

2. The side-by-side door assembly of the embedded refrigeration device according to claim 1, wherein: The split door includes a first door and a second door, both of which are rotatably connected to the refrigeration box body, and the split door panel includes a first door panel and a second door panel, the first door panel is movably mounted on the first door, and the second door panel is movably mounted on the second door; The movement distance of the first interference position of the first door panel along the width direction of the accommodation space before leaving the accommodation space is γ1, and the movement distance of the first interference position of the second door panel along the width direction of the accommodation space before leaving the accommodation space is γ2. The first door and the second door can be opened synchronously, γ1+γ2≤δ, or, The first door and the second door are selectively opened, γ1≤δ and γ2≤δ.

3. The side-by-side door assembly of the embedded refrigeration device according to claim 2, wherein: The movement distance of the second interference position of the first door panel along the width direction of the accommodation space before leaving the accommodation space is λ1, and the movement distance of the second interference position of the second door panel along the width direction of the accommodation space before leaving the accommodation space is λ2; The distance between the end surface of the hinge side of the first door panel and the side wall of the accommodating space corresponding thereto is δ3, and the distance between the end surface of the hinge side of the second door panel and the side wall of the accommodating space corresponding thereto is δ4; λ1≤δ3;λ2≤δ4.

4. The side-by-side door assembly of the embedded refrigeration device according to claim 3, wherein: δ is positively correlated with l1, l3, h1, l4, l5, h2, the maximum Δs1 before the first interference position of the first door panel leaves the accommodation space, and the maximum Δs2 before the first interference position of the second door panel leaves the accommodation space; Wherein, l1 is the vertical distance from the hinge axis of the first door to the inner surface of the first door panel, l3 is the vertical distance from the hinge axis of the first door to the end surface of the hinge side of the first door panel, h1 is the thickness of the first door, and Δs1 is the distance that the first door panel moves relative to the door during the opening of the first door; l4 is the vertical distance from the hinge axis of the first door to the inner surface of the first door panel, l5 is the vertical distance from the hinge axis of the first door to the end surface of the opening side of the first door panel, h2 is the thickness of the first door, and Δs2 is the distance that the first door panel moves relative to the door during the opening of the first door.

5. The side-by-side door assembly of the embedded refrigeration device according to claim 4, wherein: δ3 is positively correlated with l1, l3 and h1, and is negatively correlated with the maximum Δs1 before the first interference position of the first door panel leaves the accommodation space; δ4 is positively correlated with l4, l5 and h2, and is negatively correlated with the maximum Δs2 before the first interference position of the second door panel leaves the accommodating space.

6. The side-by-side door assembly of the embedded refrigeration device according to claim 5, wherein: δ3≥λ1=b1*cosβ1-l3; in, δ4≥λ2=b2*cosβ2-l5 in, δ≥γ1+γ2=a1*cosα1-l2+a2*cosα2-l6, or, δ≥γ1=a1*cosα1-l2, and δ≥γ2=a2*cosα2-l6; in, Δθ1 is the opening angle of the first door, Δs1 is the distance that the first door panel moves relative to the door opening side of the first door during the opening of the first door, l1 is the vertical distance from the hinge axis of the first door to the inner surface of the first door panel, l2 is the vertical distance from the hinge axis of the first door to the end surface of the door opening side of the first door panel, l3 is the vertical distance from the hinge axis of the first door to the end surface of the hinge side of the first door panel, h1 is the thickness of the first door panel, a1 is the length of the side where the first interference position and the hinge axis of the door are located, α1 is the angle between the first interference position and the side where the hinge axis of the door are located and the horizontal line, b1 is the length of the side where the second interference position and the hinge axis of the door are located, and β1 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line; Δθ2 is the opening angle of the second door, Δs2 is the distance that the second door panel moves relative to the door opening side of the second door during the opening of the second door, l4 is the vertical distance from the hinge axis of the second door to the inner surface of the second door panel, l6 is the vertical distance from the hinge axis of the second door to the end face of the door opening side of the second door panel, l5 is the vertical distance from the hinge axis of the second door to the end face of the hinge side of the second door panel, h2 is the thickness of the second door panel, a2 is the length of the side where the hinge axis of the second interference position and the door are located, α2 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line, b2 is the length of the second interference position and the side where the hinge axis of the door are located, and β2 is the angle between the second interference position and the side where the hinge axis of the door are located and the horizontal line.

7. The side-by-side door assembly of the embedded refrigeration device according to claim 1, wherein: The spacing δ satisfies: δ≤γ max ; Among them, γ max is the value of γ corresponding to when λ is zero and Δθ is Δθcrit, γ is the vertical distance that the first interference position moves toward the side wall of the corresponding accommodation space, λ is the vertical distance that the second interference position moves toward the side wall of the corresponding accommodation space, Δθ is the rotation angle of the door during the opening process, Δθ when the first interference position leaves the accommodation space is Δθcrit, γ and Δs are positively correlated, Δs is the distance that the door panel moves relative to the opening side of the door during the opening process.

8. The side-by-side door assembly of the embedded refrigeration device according to claim 7, wherein: The spacing δ' satisfies: δ'≤λ max ; λ max is the value of λ corresponding to when γ is zero and Δθ is Δθcrit, λ and Δs are negatively correlated, γ is the vertical distance that the first interference position moves toward the side wall of the corresponding accommodation space, λ is the vertical distance that the second interference position moves toward the side wall of the corresponding accommodation space, Δθ is the rotation angle of the door during the opening process, Δθ when the first interference position leaves the accommodation space is Δθcrit, γ and Δs are positively correlated, and Δs is the distance that the door panel moves relative to the opening side of the door during the opening process.

9. The side-by-side door assembly of an embedded refrigeration device according to any one of claims 1 to 8, wherein: The hinge axis is a movable axis.

10. The side-by-side door assembly of an embedded refrigeration device according to any one of claims 4 to 6, wherein: l1 is 5mm-50mm, l2 is 240mm-700mm, l3 is (300mm to 700mm)-l2, h1 is 10mm to 25mm, δ3 is 0.5mm-5mm; l4 is 5mm-50mm, l5 is 240mm-700mm, l6 is (300mm to 700mm)-l5, h2 is 10mm to 25mm, and δ4 is 0.5mm-5mm.

11. The side-by-side door assembly of the embedded refrigeration device according to claim 10, wherein: l1 is 5mm-50mm, l2 is 240mm-700mm, l3 is (300mm to 700mm)-l2, l4 is 5mm-50mm, l5 is 240mm-700mm, l6 is (300mm to 700mm)-l5, h2 is 10mm to 25mm, and δ is 1mm-10mm.

12. An embedded refrigeration device, comprising: A refrigeration box body, adapted to be embedded in the accommodation space; A double-door assembly for an embedded refrigeration device as claimed in any one of claims 1 to 11.

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