Refrigerator

Abstract

A refrigerator, comprising a refrigerator body (10), a door body (30) and a hinge assembly connecting the refrigerator body (10) and the door body (30). The door body (30) comprises a door front wall (31) away from the refrigerator body when the door body is closed, and a door side wall (32) close to a side wall of the refrigerator body (10) and connected to the door front wall (31). The hinge assembly comprises a hinge plate (40), a first shaft (41), a second shaft (42), a guide portion (50) and a guiding portion (60). The hinge plate (40) comprises a connecting portion and an extension portion. The first shaft (41) and the second shaft (42) are provided on the extension portion. The guide portion (50) and the guiding portion (60) are provided on the door body (30) and close to the door side wall (32). The first shaft (41) cooperates with the guide portion (50), and the second shaft (42) cooperates with the guiding portion (60). The end of the guide portion (50) away from the door side wall (32) extends in the direction away from the door front wall (31) and close to the door side wall (32), and then extends in the direction close to the door front wall (31) and the door side wall (32).

Description

refrigerator

[0001] This application claims priority to Chinese patent application No. 202410674835.9, filed on May 28, 2024; Chinese patent application No. 202421189822.4, filed on May 28, 2024; Chinese patent application No. 202421188206.7, filed on May 28, 2024; and Chinese patent application No. 202421189848.9, filed on May 28, 2024. Priority claims to the following Chinese patent applications filed on May 28, 2024: application number 202421188168.5; application number 202421189630.3; application number 202421188224.5; application number 202421189667.6; and application number 2024211880. Priority to Chinese patent application No. 53.6; priority to Chinese patent application No. 202421189694.3 filed on May 28, 2024; priority to Chinese patent application No. 202421188078.6 filed on May 28, 2024; priority to Chinese patent application No. 202421189759.4 filed on May 28, 2024; priority to Chinese patent application No. 202421189727.4 filed on May 28, 2024; Priority to Chinese patent application No. 202421188102.6, filed on May 28, 2024; priority to Chinese patent application No. 202421188296.X, filed on May 28, 2024; priority to Chinese patent application No. 202421189874.1, filed on May 28, 2024; and priority to Chinese patent application No. 202421188331.8, filed on May 28, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of household appliance technology, and specifically to a refrigerator. Background Technology

[0003] Built-in refrigerators are typically integrated into a custom-designed cabinet. To ensure a snug fit, the gap between the refrigerator's outer wall and the cabinet's inner wall must be less than a predetermined threshold. However, when the refrigerator door is opened, the vertical edge of the hinged door interferes with the inner wall of the cabinet during rotation. Due to space constraints within the cabinet, to ensure the door can open to the required angle, the corner of the door extending beyond the cabinet body must be less than a predetermined dimension during opening.

[0004] Summary of the Invention

[0005] On one hand, a refrigerator is provided, comprising a cabinet, a door, and a hinge assembly. The cabinet includes a storage compartment and a first side wall and a second side wall disposed opposite to each other, the storage compartment including a retrieval opening. The door includes a front wall away from the cabinet when closed, and a side wall close to and connected to the first side wall. The hinge assembly connects the cabinet and the door, allowing the door to rotate relative to the cabinet to open or close the retrieval opening. The hinge assembly includes a hinge plate, a first shaft, a second shaft, a guide portion, and a guide portion. The hinge plate includes a connecting portion and an extension portion; the connecting portion is connected to the cabinet and close to the first side wall, and the extension portion extends forward from the connecting portion. The first shaft and the second shaft are disposed on the extension portion. The guide portion and the guide portion are disposed on the door and close to the door side wall; the first shaft cooperates with the guide portion, and the second shaft cooperates with the guide portion. The guide portion extends from its end away from the door sidewall in a direction away from the door front wall and closer to the door sidewall, and then extends closer to both the door front wall and the door sidewall. The point where the distance between the end of the guide portion away from the door sidewall and the door front wall is minimized is denoted as the first guide boundary point Z1; the point where the distance between the end of the guide portion closer to the door sidewall and the door front wall is minimized is denoted as the second guide boundary point Z2; and the point where the distance between the guide portion and the door front wall is maximized is denoted as the third guide boundary point Z3. In the orthographic projection of the plane containing the top wall of the enclosure, along a direction perpendicular to the door sidewall, the distance between the first guide boundary point Z1 and the third guide boundary point Z3 is denoted as the first guide side spacing E'. P1 The distance between the third guide boundary point Z3 and the second guide boundary point Z2 is denoted as the second guide side spacing E`. P2 Among them, E` P1 :E` P2 Greater than the ratio of the first guide side spacing; E` P1 :E` P2 The distance between the two guide sides is less than the ratio of the distance between the two guide sides; during the process of opening the door from the closed state, the first axis moves relative to the guide part, and the second axis moves relative to the guide part.

[0006] On the other hand, a refrigerator is provided, comprising a cabinet, a door, and a hinge assembly. The cabinet includes a storage compartment and a first side wall and a second side wall disposed opposite to each other, the storage compartment including a retrieval opening. The door includes a front wall away from the cabinet when closed, and a side wall close to and connected to the first side wall. The hinge assembly connects the cabinet and the door, allowing the door to rotate relative to the cabinet to open or close the retrieval opening. The hinge assembly includes a hinge plate, a first shaft, a second shaft, a guide portion, and a guide portion. The hinge plate includes a connecting portion and an extension portion. The connecting portion is connected to the cabinet and close to the first side wall, and the extension portion extends forward from the connecting portion. The first shaft and the second shaft are disposed on the extension portion. The guide portion and the guide portion are disposed on the door and close to the door side wall; the first shaft cooperates with the guide portion, and the second shaft cooperates with the guide portion. The guide portion extends from its end away from the door sidewall in a direction away from the door front wall and closer to the door sidewall, and then extends closer to both the door front wall and the door sidewall. The point where the distance between the end of the guide portion away from the door sidewall and the door front wall is minimized is denoted as the first guide boundary point Z1; the point where the distance between the end of the guide portion closer to the door sidewall and the door front wall is minimized is denoted as the second guide boundary point Z2; and the point where the distance between the guide portion and the door front wall is maximized is denoted as the third guide boundary point Z3. In the orthographic projection of the plane containing the top wall of the housing, along a direction perpendicular to the door sidewall, the distance between the first guide boundary point Z1 and the third guide boundary point Z3 is denoted as the first guide side spacing E'. P1 The distance between the third guide boundary point Z3 and the second guide boundary point Z2 is denoted as the second guide side spacing E`. P2 Among them, E` P1 :E` P2 Greater than the ratio of the first guide side spacing; E` P1 :E` P2 The distance between the two guide sides is less than the ratio of the distance between the two guide sides; during the process of the door body moving from the closed state to the open state, the first axis moves relative to the guide part towards the door side wall, and the second axis moves relative to the guide part towards the door side wall. Attached Figure Description

[0007] Figure 1 is a perspective view of a refrigerator according to some embodiments;

[0008] Figure 2 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0009] Figure 3 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0010] Figure 4 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0011] Figure 5 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0012] Figure 6 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0013] Figure 7 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0014] Figure 8 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0015] Figure 9 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0016] Figure 10 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0017] Figure 11 shows the door opening angle of a refrigerator according to some embodiments. View at the hinge;

[0018] Figure 12 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the refrigerator door in the first stage (G1-G3) according to some embodiments;

[0019] Figure 13 is a schematic diagram showing the position of the first axis relative to the guide portion and the second axis relative to the guide portion during the second stage (G3-G7) opening process of the refrigerator door according to some embodiments;

[0020] Figure 14 is a schematic diagram showing the position of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the refrigerator door in the third stage (G7-G9) according to some embodiments.

[0021] Figure 15 shows the refrigerator door in the fourth stage (G9-G1) according to some embodiments. 10 A schematic diagram showing the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process;

[0022] Figure 16 shows the refrigerator door opening from G1 to G according to some embodiments. 10 A schematic diagram showing the movement of the first axis relative to the guide part and the second axis relative to the guide part during the process;

[0023] Figure 17A is a schematic diagram of the relative position of the door and the cabinet when the door of the refrigerator is opened to G1 according to some embodiments;

[0024] Figure 17B shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0025] Figure 17C shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0026] Figure 17D shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0027] Figure 17E shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0028] Figure 17F shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0029] Figure 17G shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0030] Figure 17H ​​shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0031] Figure 17I shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0032] Figure 17J shows the door opening angle of a refrigerator according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0033] Figure 18 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0034] Figure 19 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0035] Figure 20 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0036] Figure 21 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0037] Figure 22 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0038] Figure 23 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0039] Figure 24 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0040] Figure 25 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0041] Figure 26 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0042] Figure 27 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the first stage (G1-G3);

[0043] Figure 28 is a schematic diagram showing the position of the first axis relative to the guide portion and the second axis relative to the guide portion during the second stage (G3-G5) opening process of the door of another refrigerator according to some embodiments;

[0044] Figure 29 is a schematic diagram showing the position of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the third stage (G5-G7);

[0045] Figure 30 is a schematic diagram showing the position of the first axis relative to the guide portion and the second axis relative to the guide portion during the fourth stage (G7-G8) opening process of the door of another refrigerator according to some embodiments;

[0046] Figure 31 is a schematic diagram showing the position of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the fifth stage (G8-G9);

[0047] Figure 32 is a schematic diagram of the movement of the first axis relative to the guide portion and the second axis relative to the guide portion during the process of opening the door of another refrigerator from G1 to G9 according to some embodiments.

[0048] Figure 33A is a schematic diagram of the relative positions of the door and the cabinet when the door of another refrigerator is opened to G1 according to some embodiments;

[0049] Figure 33B shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0050] Figure 33C shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0051] Figure 33D shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0052] Figure 33E shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0053] Figure 33F shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0054] Figure 33G shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0055] Figure 33H shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0056] Figure 34 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0057] Figure 35 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0058] Figure 36 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0059] Figure 37 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0060] Figure 38 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0061] Figure 39 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0062] Figure 40 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0063] Figure 41 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0064] Figure 42 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0065] Figure 43 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0066] Figure 44 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the first stage (G1~G2);

[0067] Figure 45 is a schematic diagram showing the position of the first axis relative to the guide portion and the second axis relative to the guide portion during the second stage (G2-G4) opening process of the door of another refrigerator according to some embodiments;

[0068] Figure 46 is a schematic diagram showing the position of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the third stage (G4-G5);

[0069] Figure 47 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the fourth stage (G5-G6) opening process of the door of another refrigerator according to some embodiments.

[0070] Figure 48 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the fifth stage (G6-G9);

[0071] Figure 49 shows the door of another refrigerator according to some embodiments in the sixth stage (G9~G1). 10 A schematic diagram showing the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process;

[0072] Figure 50 shows another refrigerator door according to some embodiments, opened from G1 to G. 10 A schematic diagram showing the movement of the first axis relative to the guide part and the second axis relative to the guide part during the process;

[0073] Figure 51A is a schematic diagram of the relative positions of the door and the cabinet when the door of another refrigerator is opened to G1 according to some embodiments;

[0074] Figure 51B shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0075] Figure 51C shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0076] Figure 51D shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0077] Figure 51E shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0078] Figure 51F shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0079] Figure 51G shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0080] Figure 51H shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0081] Figure 52 is a top view of yet another refrigerator according to some embodiments;

[0082] Figure 53 is a partial structural diagram of the mating joint of the two doors in Figure 52 when they are closed;

[0083] Figure 54 is a top view of yet another refrigerator according to some embodiments;

[0084] Figure 55 is a three-dimensional structural diagram of the refrigerator door in Figure 54 when it is opened to a certain angle;

[0085] Figure 56 is a schematic diagram showing the relative position of the flip beam and the refrigerator body shown in Figure 54;

[0086] Figure 57 shows the refrigerator door of the refrigerator shown in Figure 54 closed to angle G. S A schematic diagram showing the relative positions of the rotating beam and the guide rail;

[0087] Figure 58 shows the refrigerator door of the refrigerator shown in Figure 55 closed to angle G. F A schematic diagram showing the relative positions of the rotating beam and the guide rail;

[0088] Figure 59 is a structural diagram of the locking state of the first mating part and the second mating part when the door of another refrigerator is closed, according to some embodiments;

[0089] Figure 60 shows the door opening angle of another refrigerator according to some embodiments. View at the hinge;

[0090] Figure 61 shows the door opening angle of another refrigerator according to some embodiments. View at the hinge;

[0091] Figure 62 shows the door opening angle of another refrigerator according to some embodiments. View at the hinge;

[0092] Figure 63 shows the door opening angle of another refrigerator according to some embodiments. View at the hinge;

[0093] Figure 64 shows the door opening angle of another refrigerator according to some embodiments. View at the hinge;

[0094] Figure 65 shows the door opening angle of another refrigerator according to some embodiments. View at the hinge;

[0095] Figure 66 shows the door opening angle of another refrigerator according to some embodiments. View at the hinge;

[0096] Figure 67 shows another refrigerator door opening angle according to some embodiments. View at the hinge;

[0097] Figure 68 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the first stage (G1-G2).

[0098] Figure 69 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the second stage (G2-G3) opening process of the door of another refrigerator according to some embodiments;

[0099] Figure 70 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the third stage (G3-G6);

[0100] Figure 71 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the fourth stage (G6-G7) opening process of the door of another refrigerator according to some embodiments.

[0101] Figure 72 is a schematic diagram showing the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door of another refrigerator according to some embodiments in the fifth stage (G7-G8);

[0102] Figure 73 is a schematic diagram of the movement of the first axis relative to the guide portion and the second axis relative to the guide portion during the process of opening the door of a refrigerator from G1 to G8 according to some embodiments.

[0103] Figure 74A is a schematic diagram of the relative positions of the door and the cabinet when the door of another refrigerator is opened to G1 according to some embodiments;

[0104] Figure 74B shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0105] Figure 74C shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0106] Figure 74D shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0107] Figure 74E shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0108] Figure 74F shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the housing;

[0109] Figure 74G shows another refrigerator door opening angle according to some embodiments. A schematic diagram showing the relative positions of the door and the box. Detailed Implementation

[0110] The following description, in conjunction with the accompanying drawings, clearly and completely describes some embodiments of this disclosure. Obviously, the described embodiments are merely some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0111] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0112] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0113] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0114] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0115] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, are used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0116] Built-in refrigerators are typically integrated into a custom-designed cabinet. To ensure a good fit between the refrigerator and the cabinet, the gap between the refrigerator's outer wall and the cabinet's inner wall needs to be less than a predetermined threshold. However, due to space limitations within the cabinet, when the refrigerator door is open, the vertical edge of the door's hinges can easily hit the inner wall of the cabinet as it rotates.

[0117] In related technologies, a dual-axis configuration is used in one of the door and housing components, along with a guide structure on the other component that works in conjunction with the dual-axis. This controls the inward movement of the door as it rotates open, thus meeting the requirements for embedded installation. With the dual-axis and guide structure working together, the door moves inward during opening to ensure that the corner of the door extends less than or equal to a preset dimension beyond the housing during the opening process.

[0118] However, when customizing the cabinets within a built-in refrigerator, the standard is usually that the front wall of the door, when closed, is flush with the plane of the cabinet opening. This ensures the refrigerator size matches the cabinet size, achieving a concealed, flush-mounted installation. Assuming the refrigerator door opens smoothly without interfering with the cabinet's inner wall, as the door opening angle increases, the front wall of the door approaches the end of the adjacent cabinet near its opening. When the front wall of the door contacts the end of the adjacent cabinet near its opening, the door opens to its limit. In other words, the maximum opening angle of the refrigerator door installed within the cabinet is limited by the cabinet's dimensions for concealed installation and the gap between the refrigerator's outer wall and the cabinet's inner wall. A small maximum opening angle makes it inconvenient to retrieve items.

[0119] To address the aforementioned issues, in some embodiments, a refrigerator is provided, as shown in FIG1, by providing a hinge assembly on the door 30 and a guide portion 50 and a guide portion 60 on the hinge assembly, so that when the door 30 is installed in the cabinet 100, the opening angle meets the requirements.

[0120] The side facing the refrigerator when in use is defined as the front side, and the opposite side is the back side.

[0121] Referring to Figure 1, the refrigerator includes a cabinet 10.

[0122] The refrigerator also includes a door 30 connected to the cabinet 10 to open and close the storage compartment.

[0123] In some embodiments, the housing 10 defines a plurality of storage compartments configured for storing items. Each storage compartment has a retrieval opening at its front end for placing food into or retrieving food from the storage compartment.

[0124] A refrigerator includes a refrigeration unit that supplies cold air to the storage compartment for low-temperature storage of items placed therein.

[0125] The cabinet 10 is equipped with a rotatable door 30 to open or close the access port of the storage compartment.

[0126] As shown in Figure 1, the door 30 is rotatably connected to the housing 10 by at least one of the upper hinge assembly or the lower hinge assembly.

[0127] In some embodiments, the hinge assembly includes a first hinge element. The hinge assembly also includes a second hinge element, the first hinge element cooperating with and rotating relative to the second hinge element.

[0128] The housing 10 includes a first side wall (i.e., the left side wall of the housing 10) and a second side wall (i.e., the right side wall of the housing 10).

[0129] The first hinge is disposed on the housing 10 and close to the side wall of the first body, and the second hinge is disposed on the end of the door 30 close to the first hinge. The first hinge and the second hinge cooperate to allow the housing 10 and the door 30 to rotate relative to each other.

[0130] The door 30 includes a front wall 31 that is away from the housing 10 when the door 30 is closed. The door 30 also includes a rear wall 33 opposite to the front wall 31. The door 30 also includes a side wall 32 near the first hinge member and connected to the front wall 31. For example, as shown in Figures 1 and 2, when the first hinge member is located on the right side of the housing 10, the right side of the door 30 is the side wall 32 when the door 30 is closed. When the first hinge member is located on the left side of the housing 10, the left side of the door 30 is the side wall 32 when the door 30 is closed.

[0131] As shown in Figure 1, the front wall 31 and the side wall 32 of the door 30 intersect to form a first side edge W, and the side wall 32 intersects with the rear wall 33 to form a second side edge N. When the door 30 is closed, the first side edge W is located on the side of the second side edge N away from the housing 10.

[0132] It should be noted that when both the front wall 31 and the side wall 32 are planes, the line of intersection of the two planes is the theoretical first side edge W; the theoretical second side edge N is the line of intersection of the two planes, the side wall 32 and the rear wall 33.

[0133] In some embodiments, the intersection of the front wall 31 and the side wall 32 is rounded, thereby forming a curved surface at the intersection. Any straight line extending along the height direction of the door body 30 on the curved surface at the intersection of the front wall 31 and the side wall 32 can serve as the first side edge W (the same applies to the second side edge N). For ease of description, some embodiments of this disclosure are described using the theoretical first side edge W and the theoretical second side edge N.

[0134] In some embodiments, the rear door wall 33 includes a door seal 5. When the door 30 is closed, the door seal 5 abuts against the front face of the housing 10 surrounding the access opening to effectively seal the connection between the door 30 and the housing 10, thereby ensuring that the door 30 seals the access opening and preventing cold air from escaping. For example, the door seal 5 is annular. The door seal 5 is located between the rear door wall 33 and the front face of the housing, and the rear door wall 33 is located on the side of the plane containing the access opening of the housing 10 closest to the door seal 5.

[0135] In some embodiments, referring to Figures 1 and 2, the first hinge member includes a hinge plate 40. The first hinge member also includes a first shaft 41 disposed on the hinge plate 40, and a second shaft 42. The hinge plate 40 includes a connecting portion connected to the housing 10 and close to a side wall of the first body. For example, the connecting portion can be fixedly connected to the top wall of the housing 10 by fasteners (such as screws, pins, and bolts). The hinge plate 40 also includes an extension extending forward from the connecting portion. For example, the extension is in the form of a horizontal plate.

[0136] The connecting portion is connected to the top wall of the housing 10 relative to the hinge at the upper part of the door 30. The connecting portion is connected to the front end face of the housing 10 relative to the hinge at the lower end of the door 30. Here, the extension of the first hinge member forms a first shaft 41, and the extension also includes a second shaft 42. The second shaft 42 is located on the side of the first shaft 41 away from the side wall of the first body.

[0137] The second hinge component includes a guide portion 50 located on the door body 30 near the end of the first hinge component, and the second hinge component also includes a guide portion 60. Here, the first shaft 41 is adapted to the guide portion 50, and the second shaft 42 is adapted to the guide portion 60. During the rotational opening or closing of the door body 30, the first shaft 41 moves relative to the guide portion 50, and the second shaft 42 moves relative to the guide portion 60.

[0138] The first shaft 41 and the second shaft 42 are formed on the first hinge member connected to the housing 10 to form limiting shafts that guide the movement of the door 30. As shown in FIG1, the first shaft 41 and the second shaft 42 extend in the vertical direction to fit the guide portion 50 provided on the door 30.

[0139] In some embodiments, the second shaft 42 extends in the vertical direction (height direction of the housing 10) to adapt to the guide portion 60 disposed on the door 30.

[0140] An embedded refrigerator is a refrigerator that is entirely embedded within a custom-designed cabinet 100. The end face of the cabinet 100 that defines its opening is referred to as the opening end face. The refrigerator is flush-mounted within the cabinet 100. When the refrigerator door 30 is closed, the front wall 31 of the door 30 is flush with the opening end face of the cabinet 100. In some embodiments of this disclosure, a first shaft 41 cooperates with a guide portion 50, and a second shaft 42 cooperates with a guide portion 60 to move the door 30 inward by a predetermined distance. This prevents interference between the refrigerator door 30 and the cabinet 100 when the refrigerator door 30 is opened or closed, effectively avoiding damage to the cabinet 100 or the refrigerator door.

[0141] It should be noted that "flush" in the context of the front wall 31 being flush with the opening end face of the receiving cabinet 100 includes situations where they are on the same plane, or where the distance between the two planes is less than or equal to 2mm. Specifically, the front wall 31 is located on the side of the opening end face of the receiving cabinet 100 furthest from the retrieval opening, and the distance between the two planes is less than or equal to 2mm. Alternatively, the front wall 31 is located on the side of the opening end face of the receiving cabinet 100 closest to the retrieval opening, and the distance between the two planes is less than or equal to 2mm.

[0142] It is understandable that errors may occur during the installation of the front wall 31 and the cabinet 100. Therefore, in some embodiments of this disclosure, the plane on which the front wall 31 is located and the plane on which the opening end face of the cabinet 100 is located are regarded as two planes being flush. This can avoid interference between the front wall 31 and the cabinet 100 when the door 30 is opened, and can also meet the actual installation requirements.

[0143] In some embodiments, the description takes as an example that the extensions located at the upper and lower ends of the door body 30 include a first shaft 41 and a second shaft 42, and the upper and lower ends of the door body 30 include a guide portion 50 and a guide portion 60. It should be noted that the configuration of some embodiments of this disclosure is not limited to being simultaneously provided at the upper and lower ends of the door body 30, but is configured as needed to connect the door body 30 and the housing 10.

[0144] In some embodiments, as shown in FIG2, the plane on the side of the housing 10 near the hinge plate 40 (the first body sidewall) is defined as the reference plane M0. The side of the reference plane M0 away from the inner cavity of the storage chamber is called the outer side, and the opposite side near the inner cavity of the storage chamber is called the inner side.

[0145] When the refrigerator is placed in the storage cabinet 100, to prevent uneven ground and deformation of the storage cabinet 100, the distance α' between the storage cabinet 100 and the side of the refrigerator (the first body side wall, i.e., the reference plane M0) is set when the dimensions of the storage cabinet 100 are determined. To ensure that the refrigerator door 30 can be opened normally, during the rotation of the door 30, the distance by which the first side edge W extends beyond the side of the cabinet 10 (reference plane M0) needs to be less than or equal to a preset distance, so as to avoid the first side edge W colliding with the storage cabinet 100 and causing the door 30 to be unable to open normally.

[0146] In some embodiments, α` can be any value between 3 and 5 mm. This satisfies the space requirements when the refrigerator is placed in the storage cabinet 100.

[0147] In some embodiments, α` = 3mm; that is, the distance between the door sidewall of the door 30 and the storage cabinet 100 is 3mm. This satisfies the space requirements when placing the refrigerator in the storage cabinet 100, reduces the gap between the refrigerator body and the storage cabinet 100 after the refrigerator is placed in the storage cabinet 100, improves the compatibility between the refrigerator and the storage cabinet 100, and achieves concealed installation.

[0148] To meet the above requirements, the door 30 can move inward during rotation, so that the distance by which the first side edge W extends beyond the side wall of the housing 10 is less than or equal to a preset distance. Taking the hinge plate 40 located on the right side of the door 30 (in this case, the right side wall of the housing 10 is the first side wall) as an example, the inside is the left side, meaning the door 30 needs to be able to move to the left. Taking the hinge plate 40 located on the left side of the door 30 as an example, the inside is the right side, meaning the door 30 needs to be able to move to the right.

[0149] In some embodiments, the center axis of the first axis 41 is denoted as the first center axis P, and the center axis of the second axis 42 is denoted as the second center axis Q.

[0150] In some embodiments, as shown in FIG2, in the orthographic projection of the top wall of the housing 10, the second central axis Q is located on the side of the first central axis P away from the plane where the first body sidewall and the pick-up / place-out port are located.

[0151] In some embodiments, the distance between the guide groove and the door sidewall 32 is reduced along the direction from the rear wall 33 to the front wall 31.

[0152] In some embodiments, the trajectory line of the guide portion 50 guiding the relative motion of the first central axis P is defined as the guide trajectory line S. The trajectory line of the guide portion 60 guiding the relative motion of the second central axis Q is defined as the guide trajectory line K.

[0153] For example, the guide trajectory line S is a straight line. The guide trajectory line S is located on the side of the guide trajectory line K closest to the first side edge W.

[0154] In some embodiments, the guide trajectory line S is the center trajectory line of the guide portion 50, and the guide trajectory line K is the center trajectory line of the guide portion 60.

[0155] For example, the guide part 50 is a guide groove structure, and the center trajectory line of the guide groove is the guide trajectory line S. For example, the guide part 60 is a guide groove structure, and the center trajectory line of the guide groove is the guide trajectory line K.

[0156] In some embodiments, the distance between the guide trajectory line S and the front wall 31 of the door is reduced along the direction from the end of the door body 30 away from the door side wall 32 towards the door side wall 32.

[0157] Along the direction from the end of the door body 30 away from the door side wall 32 towards the door side wall 32, the distance between the guide trajectory line K and the front wall 31 first increases and then decreases.

[0158] In some embodiments, the guide trajectory line S may extend from one end away from the door sidewall 32 toward the side closer to the front door wall 31 and the door sidewall 32.

[0159] The guide trajectory line K can extend from the side away from the door side wall 32 towards the side away from the front door wall 31 and closer to the door side wall 32, and then extend towards the side closer to both the front door wall 31 and the door side wall 32. The guide trajectory line S is located on the side of the guide trajectory line K closer to the first side edge W.

[0160] In some embodiments, the guide trajectory line K includes a first guide segment. The guide trajectory line K also includes a second guide segment connected to the end of the first guide segment near the door sidewall 32. The first guide segment extends from its end away from the door sidewall 32 in a direction close to the door sidewall 32 and away from the front wall 31, and the second guide segment extends from the end of the first guide segment near the door sidewall in a direction close to the door sidewall 32 and close to the front wall 31. That is, the second guide segment extends from its end away from the door sidewall 32 in a direction close to the door sidewall 32 and close to the front wall 31.

[0161] In some embodiments, as shown in FIG2, when the door 30 is in the closed state, the second shaft 42 is located on the side of the first shaft 41 away from the second side edge N. The guide portion 60 is located on the side of the guide portion 50 away from the first side edge W.

[0162] Since the guide portion 50 and the first shaft 41 are in a relative operational relationship, and the guide portion 60 and the second shaft 42 are in a relative motion relationship, if the door 30 is opening, with the guide portion 50 and the guide portion 60 as stationary reference points, then the first shaft 41 moves under the constraint of the guide portion 50, and the second shaft 42 moves under the constraint of the guide portion 60. For ease of description, in some embodiments of this disclosure, the guide portion 50 and the guide portion 60 are defined as stationary reference points, and the first shaft 41 and the second shaft 42 move relative to the stationary reference points.

[0163] In some embodiments, in the orthographic projection of the plane containing the top wall of the housing 10, line segment PQ is denoted as axis line segment PQ. The center of axis line segment PQ is denoted as axis center point I. As shown in Figures 2 to 16, 18 to 32, 34 to 50, and 60 to 73, the movement of the first axis 41 along the guide portion 50 is equivalent to the movement of the first central axis P along the guide trajectory line S, and the movement of the second axis 42 along the guide portion 60 is equivalent to the movement of the second central axis Q along the guide trajectory line K, so that the door 30 can move inward (towards the side wall of the second body) a predetermined distance while rotating, so as to avoid interference between the door 30 and the receiving cabinet 100 and ensure that the door 30 can be opened effectively.

[0164] Thus, during the opening process, the first axis 41 moves relative to the guide portion 50 throughout its entire movement, and the second axis 42 moves relative to the guide portion 60 throughout its entire movement. The door 30 rotates around a point that remains dynamically changing relative to the door 30 (e.g., the center point I). At this time, during the opening process, the first central axis P moves along the guide trajectory line S, and the second central axis Q moves along the guide trajectory line K, rotating around the center point I of the first and second central axes P and Q as the instantaneous center of rotation. That is, the instantaneous center of rotation of the door 30 is the center point I. The change in the position of the center point I relative to the door 30 corresponds to the change in the position of the instantaneous center of rotation of the door 30.

[0165] It should be noted that in some other embodiments, the instantaneous rotation center axis P of the rotational motion is mainly about the central axis of the first axis 41, rather than the center point I of the axis.

[0166] The movement of the door 30 relative to the box 10 is equivalent to the relative movement of the door 30 and the box 10 in the plane containing the top wall of the box 10 (or in the plane perpendicular to the first side edge W or the second side edge N). That is, the movement of the door 30 relative to the box 10 can be regarded as a relative movement in a two-dimensional plane.

[0167] Since the first hinge member, including the first shaft 41 and the second shaft 42, is fixed to the housing 10, and the second hinge member, including the guide portion 60 and the guide portion 50, is located in the door 30, in the plane where the top wall of the housing 10 is located, the movement of the first hinge member (axis segment PQ) relative to the door 30 is equivalent to the movement of the axis segment PQ relative to the door 30, and is also equivalent to the movement of the housing 10 relative to the door 30.

[0168] In some embodiments of this disclosure, the movement of the axis segment PQ relative to the second hinge member (guide portion 60 and guide portion 50) provided on the door 30 within the plane containing the top wall of the housing 10 can represent the movement of the housing 10 relative to the door 30. That is, the description of relative motion in some embodiments of this disclosure is described in terms of relative motion in a two-dimensional plane.

[0169] definition Let G be the opening angle of door 30. When door 30 is in the closed state, the opening angle of door 30 is denoted as the closing angle G. G .

[0170] In some embodiments, In this case, the front wall 31 of the door is parallel to the plane where the retrieval and placement opening is located.

[0171] In some embodiments, In this case, the rear wall 33 of the door is perpendicular to the plane where the retrieval and placement opening is located.

[0172] In some embodiments, In this case, the side wall 32 of the door is parallel to the plane where the retrieval and placement opening is located.

[0173] Door 30 relative to box 10 is When the door is opened to allow access, the opening angle of the door body 30 is... It is a positive number; the door body 30 is along the closing direction from As the movement continues to further compress the door seal 5, the opening angle of the door 30 increases. It is a negative number.

[0174] In some embodiments, in G G When the angle is 0°, that is, when the door 30 is in the closed state, the opening angle is... It should be noted that the angle G when the door 30 is in the closed state is... G Unaffected by G G =0° restriction.

[0175] When the door 30 is opened, the first shaft 41 moves relative to the guide 50 and the second shaft 42 moves relative to the guide 60, so that the door 30 moves away from the side wall of the second body while rotating.

[0176] In some embodiments, as shown in Figures 2 to 74G, the first guide segment extends from its end away from the door sidewall 32 toward the turning guide point Q in a direction close to the door sidewall 32 and away from the front wall 31. Z The second guide segment starts from the steering guide point Q. Z It extends toward the side wall 32 of the door and toward the front wall 31 of the door.

[0177] During the opening of the door 30, the trajectory of the central point I relative to the door 30 is recorded as the central point trajectory line; the point on the central point trajectory line that is furthest from the front wall 31 is recorded as the reversing midpoint I'.

[0178] When the door 30 is opened to the reversing angle G', the center point I of the axis moves to the reversing midpoint I'.

[0179] When the door is opened to the turning angle G Z At that time, the second central axis Q moves to the steering guide point Q. Z Here, 90° < G` < G Z .

[0180] In this way, when the door 30 is opened to 90° and continues to open to the reversing angle G', the center point I of the axis moves to the reversing midpoint I' which is the furthest from the front wall 31. This ensures that the door 30 moves outward after opening to 90°, reduces the amount of obstruction of the opening by the door 30, and facilitates the taking and putting of items.

[0181] The door at angle 30 continues to open from the reversing angle G' to the turning angle G. Z At that time, the second axis 42 moves to the steering guide point Q, which is the furthest from the front wall 31 of the door. Z This ensures that the door 30 opens to the turning angle G. Z The inward displacement reduces the limitation imposed by the space defined by the cabinet 100 on the maximum opening angle of the door 30, and increases the maximum opening angle of the door 30 within the cabinet 100.

[0182] In some embodiments, the difference between the reversing angle G` and 90° is denoted as ΔG`; in some embodiments, ΔG` is greater than or equal to a first reference difference; the first reference difference can be any value between 0° and 2°. This satisfies the requirement to reduce the obstruction of the pick-up / place-out opening by the door 30.

[0183] For example, the first reference difference can be 0°, 1°, or 2°. That is, ΔG` satisfies: ΔG`≥0°, ΔG`≥1°, or ΔG`≥2°. When ΔG`≥0°, the requirement to reduce the obstruction of the retrieval opening by the door 30 is met. When ΔG`≥1°, it is easy to meet the requirement to reduce the obstruction of the retrieval opening by the door 30. When ΔG`≥2°, it is even easier to meet the requirement to reduce the obstruction of the retrieval opening by the door 30.

[0184] In some embodiments, ΔG` is less than or equal to the second reference difference; the second reference difference can be any value between 6° and 10°. This satisfies the maximum opening angle requirement of the refrigerator door 30 placed inside the cabinet 100.

[0185] For example, the second reference difference can be 6°, 8°, or 10°. That is, ΔG` satisfies: ΔG`≤6° or ΔG`≤8° or ΔG`≤10°.

[0186] When ΔG` ≤ 6°, it is easier to meet the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100. When ΔG` ≤ 8°, it is easier to meet the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100. When ΔG` ≤ 10°, the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100 is met.

[0187] Here, if ΔG` is too small (e.g., less than the first reference difference), after the door 30 is opened to 90°, the amount of outward displacement is too small, and the amount of obstruction of the pick-up and put-down opening by the door 30 is too large, making it inconvenient to pick up and put down items.

[0188] If ΔG` is too large (e.g., greater than the second reference difference), after the door 30 is opened to 90°, the outward displacement is too large, the distance between the door 30 and the cabinet 100 is too close, the maximum angle that the refrigerator door 30 placed in the cabinet 100 can open is reduced, which is not conducive to opening the door 30 to a larger angle and makes it inconvenient to take out or put in items placed inside the door 30.

[0189] In some embodiments, the steering angle G Z The difference from 90° is denoted as ΔG. Z ;

[0190] In some embodiments, ΔG Z It is greater than or equal to the first reference difference; the first reference difference can be any value between 0° and 1°. For example, the first reference difference can be 0° or 1°. That is, ΔG Z ≥0° or ΔG Z ≥1°.

[0191] In some embodiments, ΔG Z Less than or equal to the second reference difference; the second reference difference can be any value between 4° and 8°. For example, the second reference difference can be 4°, 6°, or 8°. That is, ΔG Z ≤4° or ΔG Z ≤6° or ΔG Z ≤8°.

[0192] ΔG Z At an angle ≤4°, it is easier to meet the requirement of consistent travel distance between the first axis 41 and the second axis 42 of the dual axes and the door body 30 during the later stages of door opening. ΔG Z At an angle ≤6°, it is easy to meet the requirement of consistent travel distance between the first axis 41 and the second axis 42 of the dual axes and the door body 30 during the later stages of door opening. ΔG ZWhen the angle is ≤8°, the consistency of the travel of the first axis 41 and the second axis 42 relative to the door body 30 during the later stage of opening of the door body 30 is required.

[0193] If ΔG Z If the value is too large (e.g., greater than the second reference difference), the consistency of the movement of the first axis 41 and the second axis 42 relative to the door 30 in the later stage of opening the door body 30 is short (the consistency of the movement towards the side wall 32 and the front wall of the door at the same time), and the smoothness and stability of the opening of the door body 30 are poor.

[0194] In some embodiments, as shown in Figures 2 to 74G, during the opening of the door 30, the movement of the first axis 41 relative to the guide portion 50 includes the following three movement stages:

[0195] The first transformation angle G is applied to the door body 30. H1 Open to the second transformation angle G H2 During the process, the first shaft 41 moves relative to the guide part 50 towards the door side wall 32 and the door front wall 31;

[0196] The second transformation angle G is applied to the door body 30. H2 Open to the third transformation angle G H3 During the process, the first shaft 41 moves away from the door side wall 32 and the front wall 31 relative to the guide part 50;

[0197] The third transformation angle G is applied to the door body 30. H3 Open to the fourth transformation angle G H4 During the process, the first shaft 41 moves relative to the guide part 50 towards the door side wall 32 and the door front wall 31;

[0198] The first transformation angle G is applied to the door body 30. H1 Open to the fourth transformation angle G H4 During the process, the opening angle of the door 30 is the second transformation angle G. H2 Third transformation angle G H3 When the door 30 is opened, the first shaft 41 moves back relative to the guide 50; during the opening process, the second shaft 42 does not move back relative to the guide 60.

[0199] Understandably, during the opening of the door 30, the first shaft 41 retracts at least twice relative to the guide portion 50, while the second shaft 42 does not retract relative to the guide portion 60. This reduces the space occupied by the guide portion 50 and allows the door 30 to open to a greater angle. In addition, limiting the number of retractions of the first shaft 41 relative to the guide portion 50 to a preset range can prevent severe wear on the first shaft 41 and the guide portion 50 due to the number of relative movements of the first shaft 41 relative to the guide portion 50 exceeding the preset number, thus extending the service life of the hinge assembly.

[0200] In some embodiments, as shown in Figures 14 and 29, the door 30 is positioned by a first directional angle G. F1 Open to the second direction angle G F2 During the process, the first axis 41 moves away from the front wall 31 and the side wall 32, while the second axis 42 moves away from the front wall 31 and closer to the side wall 32; here, G F1 Satisfy: G F1 <90°<G F2 .

[0201] That is, when the door 30 is opened to 90°, the first shaft 41 moves away from the front wall 31 and the side wall 32 of the door relative to the guide portion 50. In this way, the direction of movement of the first shaft 41 remains unchanged when the door 30 is opened to about 90°, making the movement of the door 30 smoother and more stable when it is opened to about 90°. It also allows the door 30 to have an outward displacement when it is opened to about 90°, so as to reduce the obstruction of the access opening by the door 30 and facilitate the retrieval and placement of items.

[0202] In some embodiments, when the door 30 is opened to 90°, the front wall 31 of the door is flush with the side wall of the first body. Here, "flush" includes the case where the distance between the two planes of the front wall 31 and the side wall of the first body is less than or equal to 3 mm.

[0203] It is understandable that errors may occur during the installation of the front wall 31 and the cabinet 100. Therefore, some embodiments of this disclosure regard the case where the distance between the plane where the front wall 31 is located and the plane where the first body side wall is located is less than or equal to 3mm as two planes being flush. This can avoid interference between the front wall 31 and the cabinet 100 when the door 30 is opened, and can also meet the actual installation requirements.

[0204] In some embodiments, G F2 -G F1 It is greater than or equal to the reference value of the first direction angle; the reference value of the first direction angle can be any value between 35° and 45°.

[0205] For example, the reference value for the first direction angle can be 35°, 40°, or 45°. That is, G F2 -G F1 ≥35° or G F2 -G F1 ≥40° or G F2 -G F1 ≥45°.

[0206] When G F2 -G F1 At an angle of ≥35°, the requirement that relative wear between the guide section 50 and the first shaft 41 does not affect the service life is met.F2 -G F1 At an angle of ≥40°, it is easy to meet the requirement that relative wear between the guide part 50 and the first shaft 41 does not affect the service life. F2 -G F1 At an angle of ≥45°, it is easier to meet the requirement that the relative wear between the guide part 50 and the first shaft 41 does not affect the service life.

[0207] G F2 -G F1 It is less than or equal to the reference value of the second direction angle; the reference value of the second direction angle can be any value between 55° and 65°.

[0208] For example, the reference value for the first direction angle can be 55°, 60°, or 65°. That is, G F2 -G F1 ≤55° or G F2 -G F1 ≤60° or G F2 -G F1 ≤65°.

[0209] When G is satisfied F2 -G F1 ≤55°, or G F2 -G F1 When the angle is ≤65°, it is easier to meet the requirement that the door 30 can be opened to the maximum angle within the cabinet 100.

[0210] If G F2 -G F1 If the length of the guide part 50 is too small (e.g., less than the reference value of the first direction angle), in order to meet the requirement that the door 30 can be opened to a larger angle, the first shaft 41 will rotate multiple times relative to the guide part 50, resulting in excessive friction between the guide part 50 and the first shaft 41 and damage.

[0211] If G F2 -G F1 If the value is too large (e.g., greater than the reference value of the second direction angle), the displacement of the door 30 moving outward will be too large. Due to the influence of the space limited by the cabinet 100, the maximum angle that the door 30 can open within the cabinet 100 will be reduced, which is not conducive to opening the door 30.

[0212] As shown in Figures 1 to 17, in some embodiments, in the orthographic projection of the top wall of the housing 10, the second central axis Q is located on the side of the first central axis P away from the first body sidewall and the loading / unloading port, and the angle between the straight line QP containing the second central axis Q and the first central axis P and the first body sidewall is denoted as β.

[0213] In some embodiments, β is greater than or equal to a first reference value. The first reference value can be any value between 60° and 69°.

[0214] For example, the first reference value can be 60°, 65°, or 69°. That is, β≥60°, β≥65°, or β≥69°.

[0215] When β ≥ 60°, the requirement that the guide part 50 and guide part 60 occupy a small amount of door body 30 thickness is met. When β ≥ 65°, the requirement that the guide part 50 and guide part 60 occupy a small amount of door body 30 thickness is easily met. When β ≥ 69°, the requirement that the guide part 50 and guide part 60 occupy a small amount of door body 30 thickness is even easier to meet.

[0216] In some embodiments, β is less than or equal to a second reference value. The second reference value can be any value between 70° and 80°.

[0217] For example, the second reference value can be 70°, 75°, or 80°. That is, β≤70°, β≤75°, or β≤80°.

[0218] When β ≤ 70°, it is easier to meet the strength requirements of the guide portion 50 and guide portion 60, the first shaft 41 and the second shaft 42. When β ≤ 75°, it is easier to meet the strength requirements of the guide portion 50 and guide portion 60, the first shaft 41 and the second shaft 42. When β ≤ 80°, the strength requirements of the guide portion 50 and guide portion 60, the first shaft 41 and the second shaft 42 are met.

[0219] If β is too small (e.g., less than the first reference value), the distance between the first central axis P and the second central axis Q is too large along the direction perpendicular to the front wall 31 of the door; the guide part 50 that cooperates with the first axis 41 and the guide part 42 that cooperates with the second axis 42 occupy a larger dimension in the thickness direction of the door body 30, resulting in an increase in the thickness of the door body 30, which affects the use of the door body 30 in refrigerators (e.g., ultra-thin refrigerators).

[0220] If β is too large (e.g., greater than the second reference value), the distance between the first central axis P and the second central axis Q along the direction perpendicular to the front wall 31 of the door will be too small; the guide portion 50 and the guide portion 60 will be arranged too compactly. To avoid the guide portion 60 of the guide portion 50 not intersecting and connecting, in some embodiments, the trajectory width of the guide portion 50 cooperating with the first axis 41 and the guide portion 60 cooperating with the second axis 42 can be reduced, which correspondingly requires reducing the diameter of the first axis 41 and the second axis 42. However, reducing the diameter of the first axis 41 and the second axis 42 reduces the strength of the first axis 41 and the second axis 42, which may cause the hinge assembly to be damaged and fail. In other embodiments, to ensure that the diameter of the first axis 41 and the second axis 42 is sufficient to ensure their strength, the minimum distance (minimum wall thickness) between the guide portion 50 and the guide portion 60 will be reduced, thus reducing the strength of the guide portion 50 and the guide portion 60.

[0221] In some embodiments, the guide portion 50 may be a guide groove, and the guide portion 60 may be a guide groove.

[0222] In some embodiments, the guide groove is a straight groove. The guide channel is a curved groove. The guide groove is located on the side of the guide channel near the first side edge W.

[0223] In some embodiments, as shown in Figure 2, in the orthographic projection of the plane containing the top wall of the housing 10 (door 30), the door side wall 32 is taken as the Y-axis, and the plane passing through the first side edge W and perpendicular to the door side wall 32 is taken as the X-axis, i.e., the plane containing the front wall 31 is taken as the X-axis (for example, the front wall 31 is perpendicular to the door side wall 32); wherein, the X-axis is perpendicular to the Y-axis and intersects at the origin O (the first side edge W). The direction from the front wall 31 to the rear wall 33 is taken as the positive direction of the Y-axis, and the direction from the door side wall 32 to the opposite end of the door 30 is taken as the positive direction of the X-axis, forming a two-dimensional door coordinate system XOY. It should be noted that the door coordinate system XOY is a two-dimensional coordinate system that is stationary relative to the door 30.

[0224] In the XOY coordinate system of the gate, the function corresponding to the guide trajectory line S in the XOY coordinate system is denoted as Y = F(X).

[0225] The first derivative of Y = F(X) is denoted as F' x , F` x >0. Y = F(X) is a monotonically increasing function.

[0226] In some embodiments, the second derivative of Y = F(X) is denoted as F''. x ,F`` x =0. Y = F(X) is a linear function.

[0227] In some embodiments, the second derivative of Y = F(X) is denoted as F''. x ,F`` x >0. Y = F(X) is an upwardly convex function.

[0228] In some embodiments, in the door coordinate system XOY, the function corresponding to the guide trajectory line K in the coordinate system XOY is denoted as Y=K(X); Y=K(X) is a piecewise function, and the piecewise function is a continuous function; at each segment point, its left limit and right limit are equal.

[0229] In some embodiments, in the door body coordinate system XOY, Y = K(X) as shown in formula (1).

[0230] Here, X1 > X2 > X3 > 0; K1(X2) = K2(X2);

[0231] Y = K1(X) is a function of the second guide segment in the coordinate system XOY;

[0232] Y = K2(X) is a function of the first guide segment in the coordinate system XOY.

[0233] As shown in Figures 2 to 4 and Figure 12, under the constraints of the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42, the opening process of the door 30 includes a first stage. The first stage is as follows:

[0234] In some embodiments, the guide trajectory line S includes a first guide point P1, a second guide point P2, and a third guide point P3 that are sequentially closer to the door sidewall 32.

[0235] The first guide point P1, the second guide point P2, and the third guide point P3 are successively closer to the front wall 31 of the door. That is, the distance between the first guide point P1, the second guide point P2, and the third guide point P3 and the front wall 31 decreases in sequence.

[0236] The guide trajectory line S can extend from the first guide point P1 to the side closer to the door side wall 32 to the third guide point P3.

[0237] The guide trajectory line S can extend from the first guide point P1 to the side closer to the front wall 31 of the door to the third guide point P3.

[0238] The guiding trajectory line S can extend from the first guiding point P1 through the second guiding point P2 to the third guiding point P3.

[0239] In some embodiments, the guide trajectory line K includes a first guide point Q1, a second guide point Q2, and a third guide point Q3 that are sequentially closer to the door sidewall 32.

[0240] The first guide point Q1, the second guide point Q2, and the third guide point Q3 are successively further away from the front wall 31. That is, the distance between the first guide point Q1, the second guide point Q2, and the third guide point Q3 and the front wall 31 increases sequentially.

[0241] The guide trajectory line K can extend from the first guide point Q1 to the side closer to the door sidewall 32 to the third guide point Q3.

[0242] The guide trajectory line K can extend from the first guide point Q1 to the third guide point Q3 on the side away from the front wall 31.

[0243] The guide trajectory line K can extend from the first guide point Q1 through the second guide point Q2 to the third guide point Q3.

[0244] During the process of the door 30 opening from the first angle G1 to the third angle G3, the first central axis P moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0245] As the door 30 opens from the first angle G1 to the third angle G3, the second central axis Q moves away from the front wall 31 and closer to the side wall 32. Here, the first angle G1 is smaller than the third angle G3 (i.e., G1 < G3 < G4 < G5 ... <G3)。

[0246] During the process of the door 30 opening from the first angle G1 to the third angle G3, the first central axis P moves from the first guide point P1 through the second guide point P2 to the third guide point P3.

[0247] During the process of the door 30 opening from the first angle G1 to the third angle G3, the second central axis Q moves from the first guide point Q1 through the second guide point Q2 to the third guide point Q3.

[0248] In some embodiments, during the process of the door 30 opening from the first angle G1 to the second angle G2, the central point I of the axis moves from the first midpoint I1 to the side closer to the front wall 31 and the side wall 32 of the door to the second midpoint I2.

[0249] During the process of the door 30 opening from the second angle G2 to the third angle G3, the center point I of the axis moves from the second midpoint I2 to the side away from the front wall 31 and closer to the side wall 32 of the door to the third midpoint I3.

[0250] During the process of the door 30 opening from the first angle G1 to the third angle G3, the central point I of the axis moves from the first midpoint I1 through the second midpoint I2 to the third midpoint I3.

[0251] During the process of the door 30 opening from the first angle G1 to the third angle G3, the center point I first moves towards the side closer to the front wall 31 and the side wall 32, and then moves away from the front wall 31 and closer to the side wall 32.

[0252] In some embodiments, the first angle G1 < the second angle G2 < the third angle G3 (i.e., G1 < G2 < G3 ...2 < G <G2<G3)。

[0253] During the first stage of opening, when the door body 30 opens to an angle... At that time, the first central axis P is located at the first guide point P1 of the guide trajectory line S, the second central axis Q is located at the first guide point Q1 of the guide trajectory line K, and the central point of the axis is located at the first midpoint I1.

[0254] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the second guide point P2 of the guide trajectory line S, the second central axis Q is located at the second guide point Q2 of the guide trajectory line K, and the central point of the axis is located at the second midpoint I2.

[0255] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the third guiding point P3 of the guiding trajectory line S, the second central axis Q is located at the third guiding point Q3 of the guiding trajectory line K, and the central point of the axis is located at the third midpoint I3.

[0256] In some embodiments, G G =G1.

[0257] In some implementations, the first angle G1 = 0°.

[0258] In some embodiments, G G =G1=0°. At this time, when the opening angle of the door 30 is the first angle G1=0°, the door 30 is in the closed state.

[0259] Here, the first stage is the process of the door 30 opening from the first angle G1 to the third angle G3. When the door 30 opens from the first angle G1 (e.g., G...), the opening process is as follows: G =G1 or G G During the process of opening from G2 to G3 (G1=0°), the first central axis P moves towards the side closer to the front wall 31 and the side wall 32 of the door. The second central axis Q moves away from the front wall 31 and towards the side wall 32 of the door.

[0260] The first central axis P moves from the first guide point P1 along the guide trajectory line S, passing through the second guide point P2 to the third guide point P3; the second central axis Q moves from the first guide point Q1 along the guide trajectory line K, passing through the second guide point Q2 to the third guide point Q3.

[0261] During the first stage of opening, the second hinge component (guide part 50, guide part 60, or door body 30) will be used as a reference for explanation.

[0262] The door body 30 is subject to a first angle G1 (e.g., G...). G =G1 or G G During the opening process from G1=0° to the third angle G3, the axis segment PQ rotates clockwise from P1Q1 and moves sequentially to P2Q2 and P3Q3; that is, the movement trend of the axis segment PQ is P1Q1→P2Q2→P3Q3. Simultaneously, the movement trend of the central point I along with the axis segment PQ is I1→I2→I3. That is, during the opening process of the door 30, relative to the door 30, the central point I first moves towards the side closer to the front wall 31 and the side wall 32, and then moves away from the front wall 31 and closer to the side wall 32.

[0263] Since the guide portion 50 and the guide portion 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the housing 10. At this time, with the door body 30 as the reference, when the door body 30 is at a first angle G1 (e.g., G... G =G1 or GG During the entire process of opening from the third angle G3 (G1=0°), the box 10 (i.e., hinge plate 40) rotates clockwise relative to the door 30 and opens, first moving towards the side closer to the front wall 31 and the side wall 32, and then moving away from the front wall 31 and closer to the side wall 32.

[0264] In summary, the door body 30 is formed by the first angle G1 (for example, G...). G =G1 or G G During the process of opening from the door (G1=0°) to the second angle G2, with the door 30 (guide groove or guide groove) as the reference, the box 10 rotates and translates relative to the door 30. For example, this translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0265] During the process of the door 30 opening from the second angle G2 to the third angle G3, with the door 30 (guide groove or guide groove) as the reference, the box 10 rotates and translates relative to the door 30. For example, this translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0266] Based on the relativity of motion, taking the box 10 as a reference, the door 30 is at a first angle G1 (e.g., G... G =G1 or G G During the process of opening from the second angle G2 (G1=0°), the door 30 is rotating and translating simultaneously. For example, this translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0267] During the process of the door 30 opening from the second angle G2 to the third angle G3, the door 30 is performing a rotational motion while also performing a translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0268] As shown in Figures 4 to 8 and Figure 13, under the constraints of the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42, the opening process of the door 30 also includes a second stage. The second stage is as follows:

[0269] In some embodiments, the guide trajectory line S further includes a fourth guide point P4, a fifth guide point P5, a sixth guide point P6, and a seventh guide point P7 that are sequentially further away from the door sidewall 32.

[0270] Here, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 are successively further away from the door side wall 32.

[0271] The third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 are successively further away from the front wall 31. That is, the distance between the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 and the front wall 31 increases sequentially.

[0272] The guide trajectory line S can extend from the third guide point P3 to the seventh guide point P7 on the side away from the door sidewall 32.

[0273] The guide trajectory line S can extend from the third guide point P3 to the seventh guide point P7 on the side away from the front wall 31.

[0274] The guiding trajectory line S can extend from the third guiding point P3 through the fourth guiding point P4, the fifth guiding point P5, the sixth guiding point P6, and finally to the seventh guiding point P7.

[0275] In some embodiments, the seventh guide point P7 is located on the side of the first guide point P1 near the door sidewall 32.

[0276] Then, the third guiding point P3, the fourth guiding point P4, the fifth guiding point P5, the sixth guiding point P6, the seventh guiding point P7, and the first guiding point P1 are successively further away from the door side wall 32.

[0277] In some embodiments, the seventh guide point P7 is located on the side of the first guide point P1 near the front wall 31 of the door.

[0278] Therefore, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, and the first guide point P1 are successively further away from the front wall 31. That is, the distance between the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, and the first guide point P1 and the front wall 31 increases in sequence.

[0279] The guide trajectory line S can extend from the third guide point P3 to the first guide point P1 on the side away from the door sidewall 32.

[0280] The guide trajectory line S can extend from the third guide point P3 to the first guide point P1 on the side away from the front wall 31.

[0281] The guiding trajectory line S can extend from the third guiding point P3 through the fourth guiding point P4, the fifth guiding point P5, the sixth guiding point P6, and the seventh guiding point P7 to the first guiding point P1.

[0282] In some embodiments, the guide trajectory line K further includes a fourth guide point Q4, a fifth guide point Q5, a sixth guide point Q6, and a seventh guide point Q7 that are sequentially closer to the door sidewall 32.

[0283] Here, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7 are successively closer to the side wall 32 of the door.

[0284] The third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7 are successively further away from the front wall 31. That is, the distance between the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7 and the front wall 31 increases sequentially.

[0285] The guide trajectory line K can be extended from the third guide point Q3 to the seventh guide point Q7, which is closer to the side wall 32 of the door.

[0286] The guide trajectory line K can be extended from the third guide point Q3 to the seventh guide point Q7 on the side away from the front wall 31.

[0287] The guide trajectory line K can extend from the third guide point Q3 through the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, and finally to the seventh guide point Q7.

[0288] During the process of the door 30 opening from the third angle G3 to the seventh angle G7, the first central axis P moves away from the front wall 31 and the side wall 32 of the door.

[0289] As the door 30 opens from the third angle G3 to the seventh angle G7, the second central axis Q moves away from the front wall 31 and closer to the side wall 32. Here, the third angle G3 is smaller than the seventh angle G7.

[0290] During the process of the door 30 opening from the third angle G3 to the seventh angle G7, the first central axis P moves from the third guide point P3 through the fourth guide point P4, the fifth guide point P5, the sixth guide point P6 to the seventh guide point P7.

[0291] During the process of the door 30 opening from the third angle G3 to the seventh angle G7, the second central axis Q moves from the third guide point Q3 through the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6 to the seventh guide point Q7.

[0292] In some embodiments, during the process of the door 30 opening from the third angle G3 to the fourth angle G4, the central point I of the axis moves from the third midpoint I3 to the side away from the front wall 31 and closer to the side wall 32, and then to the fourth midpoint I4. Here, the third angle G3 is smaller than the fourth angle G4.

[0293] During the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the central point I moves from the fourth midpoint I4 to the side away from the front wall 31 and the side wall 32 of the door to the fifth midpoint I5. Here, the fourth angle G4 is smaller than the fifth angle G5.

[0294] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, the central point I moves from the fifth midpoint I5 to the side away from the front wall 31 and closer to the side wall 32, passing through the sixth midpoint I6 to the seventh midpoint I7. Here, the sixth angle G6 is 90°, the fifth angle G5 is less than the sixth angle G6, and the sixth angle G6° is less than the seventh angle G7.

[0295] During the process of the door 30 opening from the third angle G3 to the seventh angle G7, the central point I of the axis moves from the third midpoint I3 through the fourth midpoint I4, the fifth midpoint I5, the sixth midpoint I6 to the seventh midpoint I7.

[0296] During the process of the door 30 opening from the third angle G3 to the seventh angle G7, the center point I first moves away from the front wall 31 and closer to the side wall 32, then moves away from both the front wall 31 and the side wall 32, and then moves away from the front wall 31 and closer to the side wall 32.

[0297] Here, the sixth angle G6 is 90°, the third angle G3 is less than the fourth angle G4, the fourth angle G4 is less than the fifth angle G5, the fifth angle G5 is less than the sixth angle G6, and the sixth angle G6 is less than the seventh angle G7.

[0298] In some embodiments, G3 = G F1 In some embodiments, G7 = G F2 .

[0299] During the second stage of opening, when the door body 30 opens to an angle... At that time, the first central axis P is located at the third guiding point P3 of the guiding trajectory line S, the second central axis Q is located at the third guiding point Q3 of the guiding trajectory line K, and the central point of the axis is located at the third midpoint I3.

[0300] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the fourth guide point P4 of the guide trajectory line S, the second central axis Q is located at the fourth guide point Q4 of the guide trajectory line K, and the central point of the axis is located at the fourth midpoint I4.

[0301] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the fifth guide point P5 of the guide trajectory line S, the second central axis Q is located at the fifth guide point Q5 of the guide trajectory line K, and the central point of the axis is located at the fifth midpoint I5.

[0302] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the sixth guide point P6 of the guide trajectory line S, the second central axis Q is located at the sixth guide point Q6 of the guide trajectory line K, and the central point of the axis is located at the sixth midpoint I6.

[0303] When the door opens to an angle of 30 degrees (For example, G7 = G) F2 When the first central axis P is located at the seventh guide point P7 of the guide trajectory line S, the second central axis Q is located at the seventh guide point Q7 of the guide trajectory line K, and the central point of the axis is located at the seventh midpoint I7.

[0304] In some embodiments, G6 = 90°.

[0305] The second stage involves the door 30 being positioned from a third angle G3 (for example, G3 = G). F1 Open to the seventh angle G7 (e.g., G7 = G) F2 The process involves the third angle G3 at the door 30 (e.g., G3 = G). F1 During the process of opening from G4, G5, G6 to G7, the first central axis P moves away from the front wall 31 and the side wall 32 of the door. The second central axis Q moves away from the front wall 31 and closer to the side wall 32 of the door.

[0306] At the third angle G3 (e.g., G3 = G) in the door body 30, the angle is... F1 Open to the seventh angle G7 (e.g., G7 = G) F2 During the process, the first central axis P moves from the third guide point P3 along the guide trajectory line S, passing through the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, and finally to the seventh guide point P7. The second central axis Q moves from the third guide point Q3 along the guide trajectory line K, passing through the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, and finally to the seventh guide point Q7.

[0307] During the second stage of opening, the second hinge component (guide part 50, guide part 60, or door body 30) will be used as a reference for explanation.

[0308] At the third angle G3 (e.g., G3 = G) in the door body 30, the angle is... F1 Open to the seventh angle G7 (e.g., G7 = G) F2During the opening process of the door 30, the central axis segment PQ rotates clockwise from P3Q3 and moves sequentially to P4Q4, P5Q5, P6Q6, and P7Q7. That is, the movement trend of the central axis segment PQ is P3Q3→P4Q4→P5Q5→P6Q6→P7Q7. Simultaneously, the central point I moves with the central axis segment PQ in the following order: I3→I4→I5→I6→I7. In other words, during the opening of the door 30, relative to the door 30, the central point I first moves away from the front wall 31 and closer to the side wall 32, then moves away from both the front wall 31 and the side wall 32, and finally moves away from the front wall 31 and closer to the side wall 32.

[0309] Since the guide portion 50 and the guide portion 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the housing 10. At this time, with the door body 30 as the reference, the door body 30 is moved by a third angle G3 (for example, G3 = G). F1 Open to the seventh angle G7 (e.g., G7 = G) F2 Throughout the process, the box 10 (i.e., hinge plate 40) rotates clockwise relative to the door 30 and opens, first moving away from the front wall 31 and closer to the side wall 32, then moving away from both the front wall 31 and the side wall 32, and then moving away from the front wall 31 and closer to the side wall 32.

[0310] In summary, in the door body 30, the third angle G3 (for example, G3 = G) F1 During the process of opening to the fourth angle G4, with the door body 30 (guide groove or guide groove) as the reference, the box body 10 rotates and translates relative to the door body 30. For example, this translation can be: relative to the door body 30, the box body 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32 of the door, and a displacement parallel to the side wall 32 and pointing away from the front wall 31 of the door.

[0311] During the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, with the door 30 (guide groove or guide groove) as the reference, the box 10 rotates and translates relative to the door 30. For example, this translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0312] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, with the door 30 (guide groove or guide groove) as the reference, the box 10 rotates and translates relative to the door 30. For example, this translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0313] Based on the relativity of motion, taking the box 10 as the reference frame, the door 30 is at a third angle G3 (for example, G3 = G). F1 During the process of opening to the fourth angle G4, the door 30 is rotating and translating simultaneously. For example, the translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0314] During the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the door 30 is performing a rotational motion while also performing a translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0315] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, the door 30 is performing a rotational motion while also performing a translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0316] As shown in Figures 8 to 10 and Figure 14, under the aforementioned constraints on the guide portion 50 and the first axis 41, and the guide portion 60 and the second axis 42, the opening process of the door 30 further includes a third stage. For example, the third stage is as follows:

[0317] In some embodiments, the guide trajectory line S further includes an eighth guide point P8 and a ninth guide point P9 that are sequentially closer to the door sidewall 32.

[0318] Here, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 are successively closer to the side wall 32 of the door. The seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 are successively closer to the front wall 31 of the door.

[0319] Based on the relative positional relationship between the first guide point P1 and the seventh guide point P7, the first guide point P1, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 are successively closer to the door side wall 32.

[0320] The first guide point P1, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 are successively closer to the front wall 31. That is, the distance between any one of the first guide point P1, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 and the front wall 31 decreases successively.

[0321] The guide trajectory line S can extend from the seventh guide point P7 to the ninth guide point P9, which is closer to the side wall 32 of the door.

[0322] The guide trajectory line S can be extended from the seventh guide point P7 to the ninth guide point P9 on the side closer to the front wall 31.

[0323] The guiding trajectory line S can be extended from the seventh guiding point P7 through the eighth guiding point P8 to the ninth guiding point P9.

[0324] In some embodiments, the guide trajectory line K further includes an eighth guide point Q8 and a ninth guide point Q9 that are sequentially closer to the door sidewall 32.

[0325] Here, the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 are successively closer to the side wall 32 of the door.

[0326] The seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 are successively further away from the front wall 31. That is, the distance between any one of the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 and the front wall 31 increases successively.

[0327] The guide trajectory line K can be extended from the seventh guide point Q7 to the ninth guide point Q9, which is closer to the side wall 32 of the door.

[0328] The guide trajectory line K can be extended from the seventh guide point Q7 to the ninth guide point Q9 on the side away from the front wall 31.

[0329] The guide trajectory line K can be extended from the seventh guide point Q7 through the eighth guide point Q8 to the ninth guide point Q9.

[0330] Based on the relative positions of the above-mentioned guide points, the first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 are successively closer to the side wall 32 of the door.

[0331] The first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 are successively further away from the front wall 31.

[0332] During the process of the door 30 opening from the seventh angle G7 to the ninth angle G9, the first central axis P moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0333] As the door 30 opens from the seventh angle G7 to the ninth angle G9, the second central axis Q moves away from the front wall 31 and closer to the side wall 32. Here, the seventh angle G7 is smaller than the ninth angle G9.

[0334] During the process of the door 30 opening from the seventh angle G7 to the ninth angle G9, the first central axis P moves from the seventh guide point P7 through the eighth guide point P8 to the ninth guide point P9.

[0335] During the process of the door 30 opening from the seventh angle G7 to the ninth angle G9, the second central axis Q moves from the seventh guide point Q7 through the eighth guide point P8 to the ninth guide point Q9.

[0336] In some embodiments, during the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the central point I of the axis moves from the seventh midpoint I7 to the side away from the front wall 31 and closer to the side wall 32, and then to the eighth midpoint I8. Here, the seventh angle G7 is smaller than the eighth angle G8.

[0337] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the central point I moves from the eighth midpoint I8 towards the side closer to the front wall 31 and the side wall 32 of the door to the ninth midpoint I9. Here, the eighth angle G8 is smaller than the ninth angle G9.

[0338] During the process of the door 30 opening from the seventh angle G7 to the ninth angle G9, the central point I of the axis moves from the seventh midpoint I7 through the eighth midpoint I8 to the ninth midpoint I9.

[0339] During the process of the door 30 opening from the seventh angle G7 to the ninth angle G9, the center point I first moves away from the front wall 31 and closer to the side wall 32, and then moves closer to both the front wall 31 and the side wall 32.

[0340] Here, the seventh angle G7 is less than the eighth angle G8, and the eighth angle G8 is less than the ninth angle G9.

[0341] During the third stage of opening, when the door body 30 opens to an angle... At that time, the first central axis P is located at the seventh guide point P7 of the guide trajectory line S, the second central axis Q is located at the seventh guide point Q7 of the guide trajectory line K, and the central point I of the axis is located at the seventh midpoint I7.

[0342] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the eighth guide point P8 of the guide trajectory line S, the second central axis Q is located at the eighth guide point Q8 of the guide trajectory line K, and the central point I of the axis is located at the eighth midpoint I8.

[0343] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the ninth guide point P9 of the guide trajectory line S, the second central axis Q is located at the ninth guide point Q9 of the guide trajectory line K, and the central point I of the axis is located at the ninth midpoint I9.

[0344] The third stage above is the process of the door 30 opening from the seventh angle G7 to the ninth angle G9. During the process of the door 30 opening from the seventh angle G7 through G8 to G9, the first central axis P moves towards the side closer to the front wall 31 and the side wall 32, and the second central axis Q moves away from the front wall 31 and towards the side wall 32.

[0345] During the process of the door 30 opening from the seventh angle G7 to the ninth angle G9, the first central axis P moves from the seventh guide point P7 along the guide trajectory line S, passing through the eighth guide point P8, to the ninth guide point P9. The second central axis Q moves from the seventh guide point Q7 along the guide trajectory line K, passing through the eighth guide point Q8, to the ninth guide point Q9.

[0346] The third stage of the opening process is explained with reference to the second hinge component (guide part 50, guide part 60 or door body 30).

[0347] During the opening of door 30 from the seventh angle G7 to the ninth angle G9, the central axis segment PQ rotates clockwise around P7Q7 and moves sequentially to P8Q8 and P9Q9. That is, the movement trend of the central axis segment PQ is P7Q7→P8Q8→P9Q9. Simultaneously, the central point I moves along with the central axis segment PQ in the following trend: I7→I8→I9. In other words, during the opening of door 30, relative to door 30, the central point I first moves away from the front wall 31 and closer to the side wall 32, and then moves closer to both the front wall 31 and the side wall 32.

[0348] Since the guide part 50 and the guide part 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the housing 10. At this time, with the door body 30 as the reference, during the entire process of the door body 30 opening from the seventh angle G7 to the ninth angle G9, the housing 10 (i.e. the hinge plate 40) rotates clockwise relative to the door body 30 and first moves away from the front wall 31 and close to the side wall 32, and then moves closer to both the front wall 31 and the side wall 32.

[0349] In summary, during the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, with the door 30 (guide groove or guide channel) as the reference frame, the housing 10 performs both rotational and translational motion relative to the door 30. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0350] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, with the door 30 (guide groove or guide groove) as the reference, the box 10 rotates and translates relative to the door 30. For example, this translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0351] Based on the relativity of motion, taking the box 10 as a reference frame, during the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the door 30 is undergoing both rotational and translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0352] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the door 30 is performing a rotational motion while also performing a translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0353] As shown in Figures 10, 11, and 12, under the constraints of the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42, the opening process of the door 30 further includes a fourth stage. For example, the fourth stage can be as follows:

[0354] In some embodiments, the guide trajectory line S further includes a tenth guide point P. 10 .

[0355] Here, the ninth guiding point P9 and the tenth guiding point P 10 Moving closer to the side wall of the door by 32. Ninth guiding point P9, tenth guiding point P 10 31, which is closer to the front wall of the door.

[0356] The guide trajectory line S can extend from the ninth guide point P9 towards the side closer to the door sidewall 32 to the tenth guide point P. 10 .

[0357] The guide trajectory line S can be extended from the ninth guide point P9 towards the side closer to the front wall 31 to the tenth guide point P. 10 .

[0358] Based on the relative positions of the first guiding point P1, the seventh guiding point P7, the eighth guiding point P8, and the ninth guiding point P9, we have the following relationships: First guiding point P1, Seventh guiding point P7, Eighth guiding point P8, Ninth guiding point P9, Tenth guiding point P... 10 Moving closer to the side wall of the door 32 in turn.

[0359] First guiding point P1, seventh guiding point P7, eighth guiding point P8, ninth guiding point P9, tenth guiding point P 10 Moving sequentially closer to the front wall 31. That is, the first guiding point P1, the seventh guiding point P7, the eighth guiding point P8, the ninth guiding point P9, and the tenth guiding point P... 10 The distances between each and the front wall 31 decrease sequentially.

[0360] The guide trajectory line S can extend from the first guide point P1 towards the side closer to the door sidewall 32 to the tenth guide point P. 10 .

[0361] The guide trajectory line S can extend from the first guide point P1 towards the side closer to the front wall 31 to the tenth guide point P. 10 .

[0362] The guiding trajectory line S can extend from the first guiding point P1 through the seventh guiding point P7, the eighth guiding point P8, the ninth guiding point P9, to the tenth guiding point P. 10 .

[0363] In some embodiments, the tenth guiding point P 10 It is located on the side of the third guide point P3 near the door side wall 32.

[0364] Tenth guiding point P 10 It is located on the side of the third guide point P3 near the front wall 31.

[0365] The ninth guide point P9 is located on the side of the third guide point P3 away from the door sidewall 32.

[0366] The ninth guiding point P9 is located on the side of the third guiding point P3 away from the front wall 31.

[0367] Therefore, the guiding trajectory line S can extend from the first guiding point P1 through the seventh guiding point P7, the eighth guiding point P8, the ninth guiding point P9, the third guiding point P3, to the tenth guiding point P. 10 .

[0368] In some embodiments, the guide trajectory line K also includes a tenth guide point Q near the door sidewall 32. 10 .

[0369] Here, the ninth guide point Q9 and the tenth guide point Q 10 Moving closer to the side wall of the door 32 in turn.

[0370] Ninth guide point Q9, tenth guide point Q 10 Moving closer to the front wall 31 in sequence. That is, the ninth guide point Q9, the tenth guide point Q 10 The distances between each and the front wall 31 decrease sequentially.

[0371] The guide trajectory line K can be extended from the ninth guide point Q9 towards the side closer to the door sidewall 32 to the tenth guide point Q. 10 .

[0372] The guide trajectory line K can be extended from the ninth guide point Q9 towards the side closer to the front wall 31 to the tenth guide point Q. 10 .

[0373] Based on the relative positions of the aforementioned guide points, the ninth guide point Q9 is the point with the greatest distance between the guide trajectory line K and the front wall 31.

[0374] Here, the steering guide point Q Z This corresponds to the ninth guide point Q9. At this point, the steering angle G Z It is equal to the ninth angle G9.

[0375] The door 30 is opened from the ninth angle G9 to the tenth angle G. 10 During the process, the first central axis P moves toward the side closer to the front wall 31 and the side wall 32 of the door.

[0376] The door 30 is opened from the ninth angle G9 to the tenth angle G. 10 During this process, the second central axis Q moves towards the side closer to the front wall 31 and the side wall 32 of the door. Here, the ninth angle G9 is smaller than the tenth angle G. 10 .

[0377] The door 30 is opened from the ninth angle G9 to the tenth angle G. 10 During the process, the first central axis P moves from the ninth guide point Q9 to the tenth guide point P. 10 .

[0378] The door 30 is opened from the ninth angle G9 to the tenth angle G. 10 During the process, the second central axis Q moves from the ninth guide point Q9 to the tenth guide point Q. 10 .

[0379] In some embodiments, when the door 30 is opened from the ninth angle G9 to the tenth angle G... 10During the process, the central point I moves from the ninth midpoint I9 towards the side closer to the front wall 31 and the side wall 32 of the door to the tenth midpoint I. 10 .

[0380] The door 30 is opened from the ninth angle G9 to the tenth angle G. 10 During the process, the central point I moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0381] During the fourth stage of opening, when the door body 30 opens to an angle... At that time, the first central axis P is located at the ninth guide point P9 of the guide trajectory line S, the second central axis Q is located at the ninth guide point Q9 of the guide trajectory line K, and the central point of the axis is located at the ninth midpoint I9.

[0382] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the tenth guiding point P of the guiding trajectory line S. 10 The second central axis Q is located at the tenth guide point Q of the guide trajectory line K. 10 The central point I of the axis is located at the tenth midpoint I. 10 .

[0383] During the fourth stage of opening, that is, when the door 30 is opened from the ninth angle G9 to the tenth angle G... 10 During the process, the first central axis P moves toward the side closer to the front wall 31 and the side wall 32 of the door, and the second central axis Q moves toward the side closer to the front wall 31 and the side wall 32 of the door.

[0384] The door 30 is opened from the ninth angle G9 to the tenth angle G. 10 During the process, the first central axis P moves from the ninth guide point P9 along the guide trajectory line S to the tenth guide point P. 10 The second central axis Q moves from the ninth guide point Q9 along the guide trajectory line K to the tenth guide point Q. 10 .

[0385] The fourth stage of the opening process is explained with reference to the second hinge component (guide part 50, guide part 60 or door body 30).

[0386] The door 30 is opened from the ninth angle G9 to the tenth angle G. 10 During the process, the axis segment PQ rotates clockwise around P9Q9 to P 10 Q 10 At this point, the trend of motion of the axis segment PQ is P9Q9→P. 10 Q 10 Meanwhile, the motion trend of point I at the center of the axis as it moves along the axis line segment PQ is I9→I. 10That is, during the opening of the door 30, the center point I of the axis moves towards the side closer to the front wall 31 and the side wall 32 of the door, relative to the door 30.

[0387] Since the guide portion 50 and the guide portion 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the housing 10. At this time, with the door body 30 as the reference, when the door body 30 is opened from the ninth angle G9 to the tenth angle G... 10 Throughout the process, the housing 10 (i.e., hinge plate 40) rotates clockwise relative to the door 30 and moves toward the side closer to the front wall 31 and the side wall 32 of the door.

[0388] In summary, when the door 30 is opened from the ninth angle G9 to the tenth angle G... 10 During the process, with the door 30 (guide groove or guide groove) as a reference, the box 10 rotates and translates relative to the door 30. For example, the translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0389] Based on the relativity of motion, taking the box 10 as the reference frame, the door 30 opens from the ninth angle G9 to the tenth angle G... 10 During the process, the door 30 is rotating while also translating. For example, the translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0390] In some embodiments, the first guide point P1, the second guide point P2, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, the ninth guide point P9, and the tenth guide point P... 10 Located on guide trajectory line S.

[0391] Along the direction from the rear wall 33 to the front wall 31, the distance between the guide trajectory line S and the side wall 32 of the door decreases.

[0392] In some embodiments, the guide trajectory line S is a straight line. The angle between the guide trajectory line S and the front wall of the door is denoted as γ;

[0393] Here, γ is greater than or equal to the first included angle reference value; the first included angle reference value can be any value between 42° and 48°.

[0394] For example, the first included angle reference value can be 42°, 45°, or 48°. That is, γ≥42°, γ≥45°, or γ≥48°.

[0395] When γ ≥ 42°, the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies are met. When γ ≥ 45°, it is easy to meet the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies. When γ ≥ 48°, it is even easier to meet the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies.

[0396] In some embodiments, γ is less than or equal to a second included angle reference value; the second included angle reference value can be any value between 50° and 56°.

[0397] For example, the reference value for the second included angle can be 50°, 53°, or 56°. That is, γ≤50°, γ≤53°, or γ≤56°.

[0398] When γ ≤ 50°, it is easier to meet the wall thickness requirements between guide portion 50 and guide portion 60. When γ ≤ 53°, it is easier to meet the wall thickness requirements between guide portion 50 and guide portion 60. When γ ≤ 56°, the wall thickness requirements between guide portion 50 and guide portion 60 are met.

[0399] If γ is too large (e.g., greater than the second included angle reference value), the wall thickness between the guide portion 50 and the guide portion 60 will be too thin, reducing the strength of the guide portion 50 and the guide portion 60. Furthermore, when the distance between the end of the guide portion 50 away from the door side wall 32 and the front wall 31 is large, the dimension of the guide portion 60 in the direction perpendicular to the front wall 31 increases. This increases the overall trajectory of the guide portion 50 and the guide portion 60 in the direction perpendicular to the front wall 31, leading to an increase in the thickness of the door body 30, affecting its use in refrigerators (such as ultra-thin refrigerators). Excessive door body thickness also increases the obstruction of the access opening; and to ensure that drawers installed in the storage compartment can be pulled out, the lateral width of the drawers needs to be reduced, decreasing the effective utilization of the lateral space of the storage compartment.

[0400] If γ is too small (e.g., less than the first included angle reference value), the space between the guide portion 50 and the guide portion 60 of the mounting block for fixing fasteners (such as the fastener fixing method, a conventional fixing method that can fix two parts) will be insufficient. To meet the fixing requirements, the mounting area of ​​the mounting block needs to be increased; to ensure the fixing strength of the mounting block, the dimension of the mounting block along the direction perpendicular to the front wall 31 of the door needs to be increased to increase the position for fixing fasteners. Increasing the dimension of the mounting block along the direction perpendicular to the front wall 31 of the door will lead to an increase in the thickness of the door body 30 that it is adapted to, affecting the use of the door body 30 in refrigerators (such as ultra-thin refrigerators). In addition, if the thickness of the door body 30 is too large, it will lead to a greater obstruction of the access opening by the door body 30; to ensure that the drawers installed in the storage compartment can be pulled out, the lateral width of the drawers needs to be reduced, which reduces the effective utilization of the lateral space of the storage compartment.

[0401] In some embodiments, the guide trajectory line S is a curve. The guide trajectory line S bulges towards the side closer to the second side edge N.

[0402] The endpoint of the guide trajectory line S away from the front wall 31 and the side wall 32 of the door is designated as the first guide point P1, and the endpoint closer to the side wall 32 and the front wall 31 of the door is designated as the tenth guide point P. 10 .

[0403] In some embodiments, the first guide point P1 and the tenth guide point P 10 The line containing this line is denoted as line P1P. 10 Line P1P 10 The angle between the door and the front wall 31 is denoted as λ.

[0404] Here, λ is greater than or equal to the first included angle reference value; the first included angle reference value can be any value between 41° and 47°.

[0405] For example, the first included angle reference value can be 41°, 44°, or 47°. That is, λ≥41°, λ≥44°, or λ≥47°.

[0406] When λ ≥ 41°, the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies are met. When λ ≥ 44°, it is easy to meet the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies. When λ ≥ 47°, it is even easier to meet the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies.

[0407] In some embodiments, λ is less than or equal to a second included angle reference value; the second included angle reference value can be any value between 51° and 57°.

[0408] For example, the first included angle reference value can be 51°, 54°, or 57°. That is, λ≤51°, λ≤54°, or λ≤57°.

[0409] When λ ≤ 51°, it is easier to meet the wall thickness requirements between guide portion 50 and guide portion 60. When λ ≤ 54°, it is easier to meet the wall thickness requirements between guide portion 50 and guide portion 60. When λ ≤ 57°, the wall thickness requirements between guide portion 50 and guide portion 60 are met.

[0410] If λ is too large (e.g., greater than the second included angle reference value), the wall thickness between the guide portion 50 and the guide portion 60 becomes too thin, reducing the strength of the guide portion 50 and the guide portion 60. Furthermore, with a large distance between the end of the guide portion 50 furthest from the door side wall 32 and the front wall 31, the dimension of the guide portion 60 increases synchronously in the direction perpendicular to the front wall 31. This increases the overall trajectory of the guide portion 50 and the guide portion 60 in the direction perpendicular to the front wall 31, leading to an increase in the thickness of the door body 30 and affecting its use in refrigerators (such as ultra-thin refrigerators). In addition, excessive door body thickness increases the obstruction of the access opening; and to ensure that drawers installed in the storage compartment can be pulled out, the lateral width of the drawers needs to be reduced, decreasing the effective utilization of the lateral space of the storage compartment.

[0411] If λ is too small (e.g., less than the first included angle reference value), the space for fixing fasteners between the guide portion 50 and the guide portion 60 of the mounting block will be insufficient. To meet the fixing requirements, the mounting area of ​​the mounting block needs to be increased; to ensure the fixing strength of the mounting block, the dimension of the mounting block along the direction perpendicular to the front wall 31 of the door needs to be increased to increase the position for fixing fasteners. Increasing the dimension of the mounting block along the direction perpendicular to the front wall 31 of the door will lead to an increase in the thickness of the door body 30 that it is adapted to, affecting the use of the door body 30 in refrigerators (such as ultra-thin refrigerators). In addition, if the thickness of the door body 30 is too large, the obstruction of the access opening by the door body 30 will be greater; to ensure that the drawers installed in the storage compartment can be pulled out, the lateral width of the drawers needs to be reduced, which reduces the effective utilization of the lateral space of the storage compartment.

[0412] In some embodiments, when the door 30 is opened from the first angle G1 to the tenth angle G... 10 During the process, when the door 30 is opened to the first angle G1, the first central axis P is located at the first guide point P1 on the guide trajectory line S. The distance between the first guide point P1 and the door side wall 32 is at its maximum on the guide trajectory line S. The distance between the first guide point P1 and the door front wall 31 is also at its maximum on the guide trajectory line S.

[0413] In some embodiments, when the door 30 is opened from the first angle G1 to the tenth angle G... 10 During the process, when the door is opened to the tenth angle G... 10 At that time, the first central axis P is located at the tenth guiding point P of the guiding trajectory line S. 10On the guiding trajectory line S, the tenth guiding point P 10 The distance between it and the side wall 32 of the door is the smallest. On the guide trajectory line S, the tenth guide point P... 10 The distance between it and the front wall 31 is the smallest.

[0414] In some embodiments, the guide trajectory line S can extend from the first guide point P1 towards the side closer to the door sidewall 32 to the tenth guide point P. 10 .

[0415] The guide trajectory line S can extend from the first guide point P1 towards the side closer to the front wall 31 to the tenth guide point P. 10 .

[0416] The second guide point P2, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 are located on the guide trajectory line S, and are located between the first guide point P1 and the tenth guide point P. 10 between.

[0417] In some embodiments, the sixth angle G6 equals 90°, the first angle G1 is less than the second angle G2, the second angle G2 is less than the third angle G3, the third angle G3 is less than the fourth angle G4, the fourth angle G4 is less than the fifth angle G5, the fifth angle G5 is less than the sixth angle G6, the sixth angle G6 is less than the seventh angle G7, the seventh angle G7 is less than the eighth angle G8, the eighth angle G8 is less than the ninth angle G9, and the ninth angle G9 is less than the tenth angle G6. 10 .

[0418] In some embodiments, the first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, the ninth guide point Q9, and the tenth guide point Q1 are... 10 Located on guide trajectory line K.

[0419] In some embodiments, the guide trajectory line K may extend from the first guide point Q1 toward the side closer to the door sidewall 32 to the tenth guide point Q. 10 .

[0420] The guide trajectory line K can extend from the first guide point Q1 to the side away from the front wall 31 to the ninth guide point Q9, and then extend from the ninth guide point Q9 to the side closer to the front wall 31 to the tenth guide point Q1. 10 .

[0421] The guide trajectory line K can extend from the first guide point Q1 through the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, the ninth guide point Q9, and finally to the tenth guide point Q1. 10 .

[0422] In some embodiments, the guide trajectory line K first extends from the first guide point Q1 toward the side away from the front wall 31 and close to the side wall 32 to the ninth guide point Q9, and then extends from the ninth guide point Q9 toward the side close to the front wall 31 and the side wall 32 to the tenth guide point Q1. 10 .

[0423] Along the direction from the end of the door body 30 away from the door side wall 32 towards the door side wall 32, the distance between the guide trajectory line K and the front wall 31 first increases and then decreases.

[0424] The ninth guide point Q9 is the point where the distance between the guide trajectory line K and the front wall 31 is the maximum.

[0425] In some embodiments, the first guide point P1 is located on the side of the first guide point Q1 closest to the rear wall 33 and the side wall 32 of the door. The ninth guide point P9 is located on the side of the ninth guide point Q9 closest to the front wall 31 and the side wall 32 of the door. The tenth guide point P... 10 Located at the tenth guide point Q 10 The side closest to the front wall 31 and furthest from the side wall 32.

[0426] Based on the situations in the first, second, third, and fourth stages, it can be concluded that: when the door 30 is opened from the first angle G1 to the tenth angle G... 10 During the opening process, the first axis 41 first moves towards the front wall 31 and the side wall 32 of the door (G1~G3), then moves away from the front wall 31 and the side wall 32 of the door (G3~G7), and then moves towards the front wall 31 and the side wall 32 of the door again (G7~G7). 10 In summary, as the door 30 opens from the first angle G1 to the tenth angle G... 10 During the opening process, the first axis 41 changes direction twice relative to the door body 30. The hinge assembly including the above trajectory characteristics reduces the size of the guide part 50 and uses the small-sized guide part 50 to complete the opening of the door body 30 at a large angle.

[0427] Based on the situations observed in the first, second, third, and fourth stages, it can be seen that, according to the relativity of motion, with the box 10 as the frame of reference, the door 30 undergoes both rotational and translational motion. The translational displacement components include a displacement component parallel to the rear wall 33 and a displacement component parallel to the side wall 32. Here, the displacement component parallel to the rear wall 33 is denoted as the first direction displacement. The displacement component parallel to the door sidewall 32 in the second direction. During different opening stages of the door 30, the displacement in the first direction Second direction displacement The meanings are different.

[0428] In summary, during the process of the first to the fourth stage, based on the movement trajectories of the first central axis P and the second central axis Q, and the synchronous movement trend of the central point I, the movement trajectory of the central point I can be known.

[0429] As shown in Figure 16, the trajectory of the center point I relative to the door 30 includes the first center trajectory segment.

[0430] The first axis trajectory segment is as follows: during the process of the door 30 opening from the first angle G1 to the second angle G2, the center point I of the axis moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0431] Here, the central point I of the axis moves from the first midpoint I1 to the side closer to the front wall 31 and the side wall 32 of the door to the second midpoint I2.

[0432] Taking the box body 10 as a reference, the door body 30 is at a first angle G1 (for example, G...). G =G1 or G G During the process of opening from the second angle G2 (G1=0°), the door 30 is rotating and translating simultaneously. For example, this translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0433] The door body 30 is subject to a first angle G1 (e.g., G...). G =G1 or G G During the process of opening from the first angle G1 to the second angle G2 (=G1=0°), the displacement in the first direction is... Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing to the side away from the front wall 31.

[0434] As shown in Figure 16, the trajectory of the center point I relative to the door 30 also includes the second center trajectory segment.

[0435] The second axis trajectory segment is as follows: during the process of the door 30 opening from the second angle G2 to the fourth angle G4, the center point I of the axis moves away from the front wall 31 and closer to the side wall 32 of the door.

[0436] The central point I of the axis moves from the second central point I2 to the side away from the front wall 31 and close to the side wall 32 of the door, passing through the third central point I3 to the fourth central point I4.

[0437] With the housing 10 as a reference, as the door 30 opens from the second angle G2 to the fourth angle G4, the door 30 undergoes both rotational and translational motion. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0438] During the process of the door 30 opening from the second angle G2 to the fourth angle G4, the first direction displacement... Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing to the side of the front wall 31.

[0439] As shown in Figure 16, the trajectory of the center point I relative to the door 30 also includes the third center trajectory segment.

[0440] The third axis trajectory segment is as follows: during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the center point I of the axis moves away from the front wall 31 and the side wall 32 of the door.

[0441] The central point I of the axis moves from the fourth midpoint I4 to the side away from the front wall 31 and the side wall 32 of the door to the fifth midpoint I5.

[0442] With the box body 10 as the reference frame, during the process of the door body 30 opening from the fourth angle G4 to the fifth angle G5, the door body 30 is performing a rotational motion while also performing a translational motion. For example, this translational motion can be: relative to the door body 30, the box body 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0443] During the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the first direction displacement... Displacement in the second direction, pointing towards one side of the door sidewall 32. Pointing to the side of the front wall 31.

[0444] As shown in Figure 16, the trajectory of the center point I relative to the door 30 also includes the fourth center trajectory segment.

[0445] The fourth axis trajectory segment is as follows: during the process of the door 30 opening from the fifth angle G5 to the eighth angle G8, the center point I of the axis moves away from the front wall 31 and closer to the side wall 32 of the door.

[0446] The central point I of the axis moves from the fifth central point I5 to the side away from the front wall 31 and close to the side wall 32 of the door, passing through the sixth central point I6 and the seventh central point I7 to the eighth central point I8.

[0447] With the housing 10 as a reference, as the door 30 opens from the fifth angle G5 to the eighth angle G8, the door 30 undergoes both rotational and translational motion. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0448] During the process of the door 30 opening from the fifth angle G5 to the eighth angle G8, the displacement in the first direction... Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing towards the side of the wall in front of the door, 31.

[0449] In some embodiments, the difference between the eighth angle G8 and 90° is denoted as ΔG8.

[0450] Here, ΔG8 is greater than or equal to the first reference difference; the first reference difference can be any value between 0° and 5°.

[0451] For example, the first reference difference can be 0°, 3°, or 5°. That is, ΔG8 ≥ 0°, ΔG8 ≥ 3°, or ΔG8 ≥ 5°.

[0452] When ΔG8 ≥ 0°, the requirement of door 30 blocking the retrieval opening is met. When ΔG8 ≥ 3°, the requirement of door 30 blocking the retrieval opening is easily met. When ΔG8 ≥ 5°, the requirement of door 30 blocking the retrieval opening is even more easily met.

[0453] In some embodiments, ΔG8 is less than or equal to the second reference difference; the second reference difference can be any value between 6° and 10°.

[0454] For example, the second reference difference can be 6°, 8°, or 10°. That is, ΔG8 ≤ 6°, ΔG8 ≤ 8°, or ΔG8 ≤ 10°.

[0455] When ΔG8 ≤ 6°, it is easier to meet the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100. When ΔG8 ≤ 8°, it is easier to meet the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100. When ΔG8 ≤ 10°, the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100 is met.

[0456] If ΔG8 is too small (e.g., less than the first reference difference), the outward displacement of the door 30 after it is opened to 90° will be too small, and the door 30 will block the opening too much, making it inconvenient to pick up or put down items.

[0457] If ΔG8 is too large (e.g., greater than the second reference difference), after the door 30 is opened to 90°, the outward displacement is too large, the distance between the door 30 and the cabinet 100 is too close, the maximum angle that the refrigerator door 30 placed in the cabinet 100 can open is reduced, limiting the door 30 to open to a larger angle, making it inconvenient to take out or put in items placed inside the door 30.

[0458] The trajectory of the center point I relative to the door body 30 also includes the fifth center trajectory segment.

[0459] The fifth axis trajectory segment is: from the eighth angle G8 to the tenth angle G on the door body 30. 10 During the process, the central point I moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0460] The central point I of the axis moves from the eighth midpoint I8 towards the side closer to the front wall 31 and the side wall 32 of the door, passing through the ninth midpoint I9 to the tenth midpoint I. 10 .

[0461] Using the box body 10 as a reference, the door body 30 is opened from the eighth angle G8 to the tenth angle G. 10 During the process, the door 30 is rotating while also translating. For example, the translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0462] The door 30 is opened from the eighth angle G8 to the tenth angle G. 10 During the process, displacement in the first direction Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing to the side away from the front wall 31.

[0463] The door 30 is opened from the first angle G1 to the tenth angle G. 10 During the process, the trajectory of the central point I relative to the door 30 is denoted as the central point trajectory line. Here, the distance between the eighth midpoint I8 on the central point trajectory line and the front wall 31 of the door is the greatest.

[0464] Here, the reversing midpoint I` can correspond to the eighth midpoint I8. At this time, the reversing angle G` is equal to the eighth angle G8.

[0465] In some embodiments, the sixth angle G6 is 90°; the first angle G1 is less than the second angle G2; the second angle G2 is less than the third angle G3; the third angle G3 is equal to the first direction angle G... F1 They are equal, and the third angle G3 is less than the fourth angle G4; the fourth angle G4 is less than the fifth angle G5; the fifth angle G5 is less than the sixth angle G6; the sixth angle G6 is less than the seventh angle G7; the seventh angle G7 is equal to the second direction angle G. F2 They are equal, and the seventh angle G7 is less than the eighth angle G8; the eighth angle G8 is less than the ninth angle G9; the ninth angle G9 is less than the tenth angle G... 10 .

[0466] In some embodiments, the sixth angle G6 is 90°; the first angle G1 and the first transformation angle G H1 They are equal, and the first angle G1 is less than the second angle G2; the second angle G2 is less than the third angle G3; the third angle G3 is equal to the second transformed angle G... H2 They are equal, and the third angle G3 is less than the fourth angle G4; the fourth angle G4 is less than the fifth angle G5; the fifth angle G5 is less than the sixth angle G6; the sixth angle G6 is less than the seventh angle G7; the seventh angle G7 is equal to the third angle G. H3 They are equal, and the seventh angle G7 is less than the eighth angle G8; the eighth angle G8 is less than the tenth angle G. 10 ; Tenth angle G 10 With the fourth transformation angle G H4 equal.

[0467] It should be noted that pointing towards the door side wall 32 refers to the direction from the opposite end of the door body 30 and the door side wall 32 towards the door side wall 32;

[0468] Pointing away from the door side wall 32 refers to the direction from the door side wall 32 towards the opposite end of the door body 30 and the door side wall 32.

[0469] "Pointing towards the front wall 31" refers to the direction from the back wall 33 towards the front wall 31.

[0470] Pointing away from the front wall 31 means pointing from the front wall 31 to the back wall 33.

[0471] It should be noted that the displacement in the first direction Second direction displacement All of these are instantaneous relative translational displacements, used to illustrate the instantaneous translational movement trend of the door 30 relative to the box 10.

[0472] As shown in Figures 17A to 17J, a displacement coordinate system AOB is established on the side of the box 10 closest to the door 30, within the plane containing the top wall of the box 10. In the displacement coordinate system AOB, OB is perpendicular to the plane containing the pick-up and put-out opening, and OA is parallel to the plane containing the pick-up and put-out opening. In the displacement coordinate system AOB, the direction from the side wall of the second body to the side wall of the first body is defined as positive, and the direction from the pick-up and put-out opening to the front wall 31 of the door 30 when it is closed (from back to front) is also defined as positive.

[0473] It should be noted that during the opening of the door 30, the displacement coordinate system AOB remains stationary relative to the housing 10 and does not move with the opening of the door 30. During the opening of the door 30, the relative position of the door coordinate system XOY relative to the displacement coordinate system AOB changes with the opening angle of the door 30; however, when the opening angle of the door 30 is fixed, the instantaneous relative position of the door coordinate system XOY relative to the displacement coordinate system AOB remains relatively stationary.

[0474] In some embodiments, in the displacement coordinate system AOB, the door 30 has a first direction displacement parallel to the rear wall 33 of the door. The door body 30 also has a second displacement parallel to the door side wall 32. Displacement in the first direction The displacement component on axis A is The displacement along the B-axis is Second directional displacement The displacement component on axis A is The displacement along the B-axis is

[0475] (1) As shown in Figures 17A to 17G, at the first angle G1 (e.g., G) on the door body 30, the first angle G1 is used to determine the angle of the door body 30. G =G1 or G G During the process of opening from G1=0° to G6=90°, as the door 30 rotates counterclockwise relative to the box 10, the door side wall 32, the door rear wall 33, and the door front wall 31 rotate counterclockwise. In the plane containing the top wall of the box 10, the door side wall 32 extends outward and forward along the direction from the second side edge N to the first side edge W (the door rear wall 33 points to the door front wall 31); the door rear wall 33 extends inward and forward along the direction from the door side wall 32 to the opposite end of the door 30.

[0476] At the first angle G1 (e.g., G) G =G1 or G GDuring the process of opening from G1=0° to G6=90°, the door sidewall 32 starts to rotate counterclockwise from a state parallel to the reference plane M0. The angle between the door sidewall 32 and the plane where the retrieval opening is located decreases, and the angle between the door sidewall 32 and the reference plane M0 increases; that is, when the door body 30 opens from the first angle G1 (e.g., G6=90°), the door sidewall 32 rotates counterclockwise from a state parallel to the reference plane M0. G =G1 or G G During the opening process from G1 = 0° to G6 = 90°, relative to the housing 10, along the direction from the second side edge N to the first side edge W, the door sidewall 32 extends away from the second sidewall and the access opening. Simultaneously, as the opening angle of the door 30 increases, the angle between the rear door wall 33 and the plane containing the access opening increases, and the angle between the rear door wall 33 and the reference plane M0 decreases; that is, as the door 30 opens from the first angle G1 (e.g., G6 = 90°), the angle between the rear door wall 33 and the reference plane M0 decreases. G =G1 or G G During the opening process from G1=0° to G6=90°, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 and the door side wall 32, the rear wall 33 of the door extends away from the first body side wall and the access port (close to the second body side wall and away from the access port).

[0477] (1.1) As shown in Figures 17A to 17C, during the opening process of the door 30, the door 30 includes a first angle G1 (e.g., G1) corresponding to the first axis trajectory segment. G =G1 or G G =G1=0°) The process of opening to the second angle G2.

[0478] Therefore, we can conclude that: at the first angle G1 (e.g., G) in the door body 30, the angle is... G =G1 or G G During the process of opening from the box 10 to the second angle G2 (G1=0°), the door 30 has a first direction displacement parallel to the rear wall 33 and pointing away from the side wall 32, with the box 10 as the reference. The second direction displacement is parallel to the side wall 32 of the door and points away from the front wall 31 of the door.

[0479] That is, in the door body 30, the first angle G1 (e.g., G) G =G1 or G G During the process of opening from the first angle G1 to the second angle G2 (=G1=0°), the displacement in the first direction is... The second direction displacement points to the inner front side (inward and forward side) of the housing 10. Pointing to the inner rear side (inward and rearward side) of housing 10.

[0480] As shown in Figures 17B to 17C, in the displacement coordinate system AOB, the door body 30 is at a first angle G1 (e.g., G... G=G1 or G G During the process of opening from the first angle G1 to the second angle G2 (G1=0°), the door body 30 is displaced in the first direction. Located in the second quadrant (A < 0, B > 0). Second directional displacement. It is located in the third quadrant (A < 0, B < 0).

[0481] For displacement in the first direction Second direction displacement Displacement decomposition is performed on the A-axis, then the displacement in the first direction is... The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0482] but, satisfy: At this time, the door body 30 is at the first angle G1 (for example, G... G =G1 or G G During the process of opening from the first angle (G1=0°) to the second angle (G2), in the displacement coordinate system AOB, the first translational displacement of the door 30 is... satisfy: Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the negative A-axis. That is, during the process of the door 30 opening from the first angle G1 to the second angle G2, the door 30, while rotating and opening relative to the housing 10, also exhibits a tendency to translate inward.

[0483] For displacement in the first direction Second direction displacement Displacement decomposition is performed on the B-axis, then the displacement in the first direction is... The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0484] In some embodiments, as shown in FIG17B, the door body 30 is subject to a first angle G1 (e.g., G... G =G1 or G G =G1=0°) Open to the first steering angle G Z1 During the process, but, satisfy: At this time, the door body 30 is at the first angle G1 (e.g., G...G =G1 or G G =G1=0°) Open to the first steering angle G Z1 During the process, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move backward.

[0485] Based on the translational trend of the door body 30 along the A-axis, when the door body 30 is at a first angle G1 (e.g., G... G =G1 or G G =G1=0°) Open to the first steering angle G Z1 During the process, the door 30 rotates and opens relative to the box 10, while also exhibiting a tendency to move inward and backward.

[0486] As shown in Figure 17C, the door 30 is rotated from the first turning angle G. Z1 During the process of opening to the second angle G2, but, satisfy: At this time, when the door body 30 changes from the first turning angle G Z1 During the process of opening to the second angle G2, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move forward.

[0487] Based on the translational trend of the door body 30 along the A-axis, when the door body 30 changes direction from the first turning angle G... Z1 During the process of opening to the second angle G2, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move inward and forward.

[0488] In summary, during the process of the door 30 opening from the first angle G1 to the second angle G2, the door 30 rotates and opens relative to the box 10, while also exhibiting a tendency to first translate backward and then forward.

[0489] In conjunction with the translational trend of the door 30 along the A-axis, as the door 30 opens from the first angle G1 to the second angle G2, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to first translate inward and backward, and then translate inward and forward.

[0490] Here, the first angle G1 is less than the first steering angle G. Z1 First steering angle G Z1 It is less than the second angle G2.

[0491] In some embodiments, the door body 30 is formed by a first angle G1 (e.g., G... G =G1 or G G During the process of opening from the second angle G2 (G1=0°), but, satisfy: At this time, the door body 30 is at the first angle G1 (e.g., G... G =G1 or G G During the process of opening from the second angle G2 to the second angle (G1=0°), in the displacement coordinate system AOB, the door body 30 includes the second translational displacement. Therefore, it can be concluded that, relative to the housing 10, the door 30 also exhibits a tendency to translate along the negative B-axis while rotating. That is, during the process of the door 30 opening from the first angle G1 to the second angle G2, the door 30 rotates and opens relative to the housing 10 while also exhibiting a tendency to translate backward.

[0492] In conjunction with the translational trend of the door 30 along the A-axis, as the door 30 opens from the first angle G1 to the second angle G2, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate inward and backward.

[0493] In some embodiments, the first angle G1 is smaller than the first steering angle G. Z1 First steering angle G Z1 The second angle G2 is less than the third angle G3; the third angle G3 is less than the first direction angle G. F1 equal.

[0494] In some embodiments, the door body 30 is formed by a first angle G1 (e.g., G... G =G1 or G G During the process of opening from the second angle G2 (G1=0°), but, satisfy: At this time, the door body 30 is at the first angle G1 (e.g., G... G =G1 or G G During the process of opening from the first angle (G1=0°) to the second angle (G2), the door 30 undergoes a second translational displacement in the displacement coordinate system AOB. Therefore, it can be concluded that, relative to the housing 10, the door 30 also exhibits a tendency to translate along the positive direction of the B-axis while rotating. That is, during the process of the door 30 opening from the first angle G1 to the second angle G2, the door 30 rotates and opens relative to the housing 10 while also exhibiting a tendency to translate forward.

[0495] In conjunction with the translational trend of the door 30 along the A-axis, as the door 30 opens from the first angle G1 to the second angle G2, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate inward and forward.

[0496] In some embodiments, and satisfy: During the process of the door 30 opening from the first angle G1 to the second angle G2, the door 30 mainly moves inward, while also having a small tendency to move forward or backward, so that the door 30 moves inward to compensate for the displacement of the first side edge W due to the rotational motion, thereby avoiding the collision between the first side edge W and the cabinet 100.

[0497] (1.2) During the opening process of the door 30, the door 30 also includes the process of opening from the second angle G2 to the fourth angle G4, which corresponds to the second axis trajectory segment.

[0498] Therefore, it can be concluded that during the process of the door 30 opening from the second angle G2 to the fourth angle G4, with the box 10 as the reference, the door 30 includes a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. It also includes a second directional displacement parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door.

[0499] That is, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, the displacement in the first direction The second direction displacement points to the inner front side (inward and forward side) of the housing 10. Pointing to the outer front side (outward and forward side) of housing 10.

[0500] As shown in Figures 17D and 17E, in the displacement coordinate system AOB, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, the first direction displacement of the door 30 is... Located in the second quadrant (A < 0, B > 0). Second directional displacement. It is located in the first quadrant (A>0, B>0).

[0501] For displacement in the first direction Second direction displacement Displacement decomposition is performed on the B-axis, then the displacement in the first direction is... The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0502] but, satisfy: At this time, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, in the displacement coordinate system AOB, the door 30 includes a second translational displacement. Therefore, it can be concluded that, relative to the housing 10, the door 30 also exhibits a tendency to translate along the positive direction of the B-axis while rotating. That is, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, the door 30 rotates and opens relative to the housing 10 while also exhibiting a tendency to translate forward.

[0503] For displacement in the first direction Second direction displacement Displacement decomposition is performed on the A-axis, then the displacement in the first direction is... The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0504] In some embodiments, as shown in FIG17D, when the door 30 is opened from the second angle G2 to the second turning angle G Z2 During the process, but, satisfy: At this time, the door 30 is opened from the second angle G2 to the second turning angle G. Z2 During the process, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move inward.

[0505] Based on the translational trend of the door 30 along the B-axis, as the door 30 opens from the second angle G2 to the second turning angle G... Z2 During the process, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move inward and forward.

[0506] As shown in Figure 17E, at the second turning angle G of the door body 30 Z2 During the process of opening to the fourth angle G4, and satisfy: but, satisfy: At this time, the door body 30 changes from the second turning angle G Z2 During the process of opening to the fourth angle G4, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move outwards.

[0507] Based on the translational trend of the door body 30 along the B-axis, when the door body 30 changes direction at the second turning angle G... Z2 During the process of opening to the fourth angle G4, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move outward and forward.

[0508] In summary, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, the door 30 rotates and opens relative to the box 10, while also exhibiting a tendency to first translate inward and then translate outward.

[0509] Combining the translational trend of the door 30 along the B-axis, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to first translate inward and forward, and then translate outward and forward.

[0510] Here, the second angle G2 is less than the second steering angle G. Z2 Second steering angle G Z2 Less than the fourth angle G4.

[0511] In some embodiments, during the process of the door 30 opening from the second angle G2 to the fourth angle G4... but, satisfy: At this moment, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, in the displacement coordinate system AOB, the first translational displacement of the door 30 is... satisfy: Therefore, it can be concluded that, relative to the housing 10, the door 30 also exhibits a tendency to translate along the negative A-axis while rotating. That is, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, the door 30 rotates and opens relative to the housing 10 while also exhibiting a tendency to translate inward.

[0512] In conjunction with the translational trend of the door 30 along the B-axis, as the door 30 opens from the second angle G2 to the fourth angle G4, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate inward and forward.

[0513] In some embodiments, during the process of the door 30 opening from the second angle G2 to the fourth angle G4... but, satisfy: At this moment, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, in the displacement coordinate system AOB, the first translational displacement of the door 30 is... satisfy: Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of the A-axis. That is, during the process of the door 30 opening from the second angle G2 to the fourth angle G4, the door 30, while rotating and opening relative to the housing 10, also exhibits a tendency to translate outward.

[0514] In conjunction with the translational trend of the door 30 along the B-axis, as the door 30 opens from the second angle G2 to the fourth angle G4, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate inward and forward.

[0515] (1.3) During the opening process of the door 30, the door 30 also includes the process of opening from the fourth angle G4 to the fifth angle G5, which corresponds to the trajectory segment of the third axis.

[0516] Therefore, it can be concluded that during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, with the box 10 as the reference, the door 30 also has a first directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. The second direction displacement is parallel to the side wall 32 of the door and points towards the front wall 31 of the door.

[0517] That is, during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the displacement in the first direction The second direction displacement points to the outer front side (outward and forward side) of the housing 10. Pointing to the outer rear side (outward and rearward side) of housing 10.

[0518] As shown in Figure 17F, in the displacement coordinate system AOB, during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the displacement in the first direction is... Located in the fourth quadrant (A>0, B<0). The second directional displacement of the door body 30. It is located in the first quadrant (A>0, B>0).

[0519] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0520] Then we have: It can be seen that during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the door 30 also has a first translational displacement in the displacement coordinate system AOB. Therefore, it can be concluded that: relative to the housing 10, the door 30 also has a tendency to translate along the positive direction of the A-axis while rotating; that is, during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the door 30 also has a tendency to translate outward while rotating relative to the housing 10.

[0521] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0522] In some embodiments, during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5... Then there is >0. Therefore, during the process of door 30 opening from the fourth angle G4 to the fifth angle G5, in the displacement coordinate system AOB, door 30 also experiences a second translational displacement. Therefore, it can be concluded that, relative to the housing 10, the door 30 also exhibits a tendency to translate along the positive direction of the B-axis while rotating. That is, during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the door 30 rotates and opens relative to the housing 10 while also exhibiting a tendency to translate forward.

[0523] In conjunction with the translational trend of the door 30 along the A-axis, as the door 30 opens from the fourth angle G4 to the fifth angle G5, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate outwards and forwards.

[0524] In some embodiments, during the process of the door 30 opening from the fourth angle G4 to the fifth angle G5... During the process of the door 30 opening from the fourth angle G4 to the fifth angle G5, the door 30 mainly moves outward, while also having a slight tendency to move forward or backward. This is to ensure that the door 30 moves outward and reduce the amount of obstruction to the loading and unloading opening when the door 30 is opened to 90°.

[0525] (1.4) During the opening process of the door 30, the door 30 includes a process corresponding to the opening from the fifth angle G5 to the sixth angle G6 = 90° in the fourth axis trajectory segment.

[0526] As can be seen from the above description, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°, with the box body 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. and a second directional displacement parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door.

[0527] That is, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°, the displacement in the first direction The second direction displacement points to the inner front side (inward and forward side) of the housing 10. Pointing to the outer front side (outward and forward side) of housing 10.

[0528] As shown in Figure 17G, in the displacement coordinate system AOB, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°, the first direction displacement of the door 30 is... Located in the second quadrant (A < 0, B > 0). Second directional displacement. It is located in the first quadrant (A>0, B>0).

[0529] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0530] In some embodiments, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°... but, satisfy: At this time, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°, in the displacement coordinate system AOB, the door 30 also includes a first translational displacement. Therefore, it can be concluded that, relative to the housing 10, the door 30 exhibits a tendency to translate along the positive direction of axis A while rotating. That is, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°, the door 30 rotates and opens relative to the housing 10 while exhibiting a tendency to translate outwards.

[0531] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0532] but, satisfy: At this moment, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°, in the displacement coordinate system AOB, the door 30 has a second translational displacement. Therefore, it can be concluded that, relative to the housing 10, the door 30 exhibits a tendency to translate along the positive direction of the B-axis while rotating. That is, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°, the door 30 rotates and opens relative to the housing 10 while exhibiting a tendency to translate forward.

[0533] Combining the translational trend of the door 30 along the A-axis, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6 = 90°, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate outwards and forwards.

[0534] Combining (1.1) to (1.4), it can be seen that during the process of the door 30 opening from the first angle G1 to the sixth angle G6 = 90°, the door 30 has a tendency to move inward during the early stage of opening (G1 to G6). Z2 This compensates for the outward displacement of the first side edge caused by rotation in the initial stage of opening the door 30, effectively preventing interference between the door 30 and the cabinet 100.

[0535] During the opening process of door 30 from the first angle G1 to the sixth angle G6 = 90°, door 30 exhibits a tendency to move outward during the 90° opening process (G). Z2 ~G6=90°) to reduce the obstruction of the door body 30 to the pick-up and drop-off opening.

[0536] In addition, during the process of opening the door 30 from the first angle G1 to the sixth angle G6 = 90°, the door 30 moves forward (G2 ~ G6 = 90°) so that the door 30 is removed from the space limited by the cabinet 100, thereby reducing the restriction of the cabinet 100 on the opening angle of the door 30 and increasing the maximum angle that the door 30 can open within the cabinet 100.

[0537] (2) As shown in Figure 17H, when the door 30 is opened to 90°, the door side wall 32 is parallel to the plane where the retrieval opening is located and perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0 and perpendicular to the plane where the retrieval opening is located. That is, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends from the inside to the outside; along the direction from the door side wall 32 to the opposite end of the door body 30 and the door side wall 32, the door rear wall 33 extends from the back to the front.

[0538] During the opening process of the door 30, the door 30 includes the process corresponding to the opening of the door 30 to the sixth angle G6 = 90° in the fourth axis trajectory segment.

[0539] As can be seen from the above description, when the door 30 is opened to the sixth angle G6 = 90°, with the box 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. and a second directional displacement parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door.

[0540] That is, when the door 30 is opened to the sixth angle G6 = 90°, the displacement in the first direction The second direction displacement points to the front side (forward side) of housing 10. Pointing to the outside of housing 10 (outward side).

[0541] As shown in Figure 17H, in the displacement coordinate system AOB, when the door 30 is opened to the sixth angle G6 = 90°, the displacement of the door 30 in the first direction is... Displacement along axis B (A = 0, B > 0) in the second direction. Along axis A (A > 0, B = 0).

[0542] For displacement in the first direction Second direction displacement Displacement decomposition is performed on the A-axis, then the displacement in the first direction is... The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0543] In some embodiments, when the door 30 is opened to the sixth angle G6 = 90°, then, satisfy: At this point, when the door 30 is opened to the sixth angle G6 = 90°, the door 30 has a first translational displacement in the displacement coordinate system AOB. Therefore, it can be concluded that, relative to the housing 10, the door 30 exhibits a tendency to translate along the positive direction of axis A while rotating. That is, when the door 30 is opened to the sixth angle G6 = 90°, the door 30 rotates and opens relative to the housing 10 while exhibiting a tendency to translate outwards.

[0544] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0545] but, satisfy: At this point, when the door 30 is opened to the sixth angle G6 = 90°, the door 30 has a second translational displacement in the displacement coordinate system AOB. Therefore, it can be concluded that, relative to the housing 10, the door 30 exhibits a tendency to translate along the positive direction of the B-axis while rotating. That is, when the door 30 is opened to the sixth angle G6 = 90°, the door 30 rotates and opens relative to the housing 10 while exhibiting a tendency to translate forward.

[0546] Combining the translational tendency of the door 30 along the A-axis, when the door 30 is opened to the sixth angle G6 = 90°, the door 30 rotates and opens relative to the box 10 while also having a tendency to translate outward and forward.

[0547] (3) As shown in Figures 17I and 17J, the door 30 is rotated open from G6 = 90° to G... 10 (G 10 During the process of opening the door (>90°), as the door 30 rotates counterclockwise relative to the housing 10, the door sidewall 32 also rotates counterclockwise during this opening phase. In the plane containing the top wall of the housing 10, the door sidewall 32 extends outward and backward along the direction from the second side edge N to the first side edge W; the rear door wall 33 extends outward and forward along the direction from the door sidewall 32 to the opposite end of the door 30 and the door sidewall 32.

[0548] During the opening process described above, the door side wall 32, initially perpendicular to the reference plane M0 (when the door 30 is opened 90°), begins to rotate counterclockwise. The angle between the door side wall 32 and the plane containing the access opening increases, while the angle between the door side wall 32 and the reference plane M0 decreases. That is, when the door 30 rotates from G6 = 90° to G... 10During the process, relative to the housing 10, along the direction from the second side edge N to the first side edge W, the door sidewall 32 extends away from the second sidewall and closer to the access opening. Simultaneously, the angle between the door rear wall 33 and the plane containing the access opening decreases, while the angle between it and the reference plane M0 increases; that is, when the door 30 rotates open from G6 = 90° to G... 10 During the process, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 and the door side wall 32, the door rear wall 33 extends away from the second body side wall and the loading and unloading port.

[0549] (3.1) During the opening process of the door 30, the door 30 also includes the process of opening from the sixth angle G6 = 90° to the eighth angle G8, which corresponds to the trajectory segment of the fourth axis.

[0550] As can be seen from the above description, during the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8, with the box body 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. and a second directional displacement parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door.

[0551] That is, during the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8, the displacement in the first direction The second direction displacement points to the outer front side (outward and forward side) of the housing 10. Pointing to the outer rear side (outward and rearward side) of housing 10.

[0552] As shown in Figure 17I, in the displacement coordinate system AOB, during the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8, the first direction displacement of the door 30 is... Located in the first quadrant (A > 0, B > 0). Displacement in the second direction. It is located in the fourth quadrant (A>0, B<0).

[0553] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0554] but, satisfy: At this moment, during the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8, the door 30 undergoes a first translational displacement in the displacement coordinate system AOB. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to translate along the positive direction of the A-axis while rotating; that is, in the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8, the door 30 has a tendency to translate outward while rotating relative to the box 10.

[0555] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0556] In some embodiments, during the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8... but, satisfy: At this moment, during the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8, the door 30 undergoes a second translational displacement in the displacement coordinate system AOB. Therefore, it can be concluded that, relative to the housing 10, the door 30 exhibits a tendency to translate along the positive direction of the B-axis while rotating. That is, during the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8, the door 30 exhibits a tendency to translate forward while rotating relative to the housing 10.

[0557] In conjunction with the translational trend of the door 30 along the A-axis, during the process of the door 30 opening from the sixth angle G6 = 90° to the eighth angle G8, the door 30 rotates and opens relative to the box 10 while simultaneously exhibiting a tendency to translate outwards and forwards.

[0558] In some embodiments, During the process of opening the door 30 from the sixth angle G6 = 90° to the eighth angle G8, the door 30 mainly moves forward, while also having a slight tendency to move outward. This allows the door 30 to move out of the space defined by the cabinet 100, reducing the restriction on the opening angle of the door 30 imposed by the cabinet 100, thereby increasing the maximum angle that the door 30 can open within the cabinet 100.

[0559] (3.2) During the opening process of the door 30, the door 30 also includes opening from the eighth angle G8 to the tenth angle G, corresponding to the trajectory segment of the fifth axis. 10 The process.

[0560] As can be seen from the above description: when the door 30 is opened from the eighth angle G8 to the tenth angle G... 10 During the process, with the box body 10 as a reference, the door body 30 has a first direction displacement that is parallel to the rear wall 33 and points away from the side wall 32. and a second direction displacement parallel to the side wall 32 and pointing away from the front wall 31 of the door.

[0561] That is, when the door 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, displacement in the first direction The second direction displacement points to the outer front side (outward and forward side) of the housing 10. Pointing to the inner front side (inward and forward side) of housing 10.

[0562] As shown in Figure 17J, in the displacement coordinate system AOB, the door 30 opens from the eighth angle G8 to the tenth angle G. 10 During the process, the first direction displacement of the gate 30 Located in the first quadrant (A > 0, B > 0). Displacement in the second direction. It is located in the second quadrant (A < 0, B > 0).

[0563] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0564] In some embodiments, when the door 30 is opened from the eighth angle G8 to the tenth angle G... 10 During the process, but, satisfy: At this time, the door 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, in the displacement coordinate system AOB, the door body 30 undergoes a first translational displacement. Therefore, it can be concluded that, relative to the housing 10, the door 30 exhibits a tendency to translate along the negative A-axis while simultaneously rotating. That is, when the door 30 opens from the eighth angle G8 to the tenth angle G... 10 During the process, the door 30 rotates and opens relative to the box 10 while exhibiting a tendency to move inward.

[0565] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is, satisfy:

[0566] but, satisfy: At this time, the door 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, in the displacement coordinate system AOB, the door body 30 undergoes a second translational displacement. Therefore, it can be concluded that, relative to the housing 10, the door 30 exhibits a tendency to translate along the positive B-axis while rotating. That is, when the door 30 opens from the eighth angle G8 to the tenth angle G... 10 During the process, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move forward.

[0567] Based on the translational trend of the door 30 along the A-axis, as the door 30 opens from the eighth angle G8 to the tenth angle G... 10 During the process, the door 30 rotates and opens relative to the box 10 while exhibiting a tendency to move inward and forward.

[0568] In some embodiments, The door 30 is opened from the eighth angle G8 to the tenth angle G. 10 During the process, the door 30 primarily moves forward, with a slight tendency to move inward. This allows the door 30 to move out of the space defined by the cabinet 100, reducing the restriction on the opening angle of the door 30 by the cabinet 100, thereby increasing the maximum opening angle that the door 30 can achieve within the cabinet 100. Additionally, the slight inward movement reduces the obstruction of the retrieval opening by the door 30.

[0569] It should be noted that the above explanation mainly refers to some angles within the range of 0 to 90°, 90°, and 90° to G. 10Some angles within the range are used as representatives to illustrate the overall movement trend of the door 30, but they can represent the movement trend within the corresponding range. They can illustrate that the hinge assembly with the above trajectory characteristics of some embodiments of this disclosure can enable the door 30 to translate along the A-axis and B-axis throughout the rotation opening process.

[0570] Figures 18 to 33H are related schematic diagrams of another refrigerator according to some embodiments.

[0571] In some embodiments, in the projection of the top wall of the housing 10, the second central axis Q is located on the side of the first central axis P away from the first body sidewall and the loading / unloading port. The angle between the straight line QP containing the second central axis Q and the first central axis P and the first body sidewall is denoted as β.

[0572] β is greater than or equal to the first reference value. For example, the first reference value can be any value between 63° and 73°.

[0573] For example, the first reference value can be 63°, 68°, or 73°. That is, β≥63°, β≥68°, or β≥73°.

[0574] When β ≥ 63°, the requirement that the guide part 50 and guide part 60 occupy a small amount of door body 30 thickness is met. When β ≥ 68°, the requirement that the guide part 50 and guide part 60 occupy a small amount of door body 30 thickness is easily met. When β ≥ 73°, the requirement that the guide part 50 and guide part 60 occupy a small amount of door body 30 thickness is even easier to meet.

[0575] β is less than or equal to the second reference value. The second reference value can be any value between 74° and 84°. Specifically, the second reference value can be 74°, 79°, or 84°. That is, β ≤ 74°, β ≤ 79°, or β ≤ 84°.

[0576] When β ≤ 74°, it is easier to meet the strength requirements of guide part 50 and guide part 60, first shaft 41 and second shaft 42. When β ≤ 79°, it is easier to meet the strength requirements of guide part 50 and guide part 60, first shaft 41 and second shaft 42. When β ≤ 84°, the strength requirements of guide part 50 and guide part 60, first shaft 41 and second shaft 42 are met.

[0577] Here, if β is too small (e.g., less than the first reference value), the distance between the first central axis P and the second central axis Q is too large in the direction perpendicular to the front wall 31 of the door; the guide part 50 that cooperates with the first axis 41 and the guide part 42 that cooperates with the second axis 42 occupy an increased dimension in the thickness direction of the door body 30, resulting in an increase in the thickness of the door body 30, which is not suitable for the use of the door body 30 in refrigerators (e.g., ultra-thin refrigerators).

[0578] Here, if β is too large (e.g., greater than the second reference value), the distance between the first central axis P and the second central axis Q is too small in the direction perpendicular to the front wall 31. The guide portion 50 and the guide portion 60 are then arranged too compactly. To prevent the guide portion 60 of the guide portion 50 from not intersecting, one approach is to reduce the trajectory width of the guide portion 50 that cooperates with the first axis 41 and the guide portion 60 that cooperates with the second axis 42. Correspondingly, the diameters of the first axis 41 and the second axis 42 need to be reduced. However, reducing the diameters of the first axis 41 and the second axis 42 lowers their strength, easily leading to damage and failure of the hinge assembly. In other embodiments, ensuring the diameters of the first axis 41 and the second axis 42 are sufficient to guarantee their strength reduces the minimum distance (minimum wall thickness) between the guide portion 50 and the guide portion 60, resulting in reduced strength of the guide portion 50 and the guide portion 60.

[0579] In some embodiments, the guide portion 50 is configured as a guide groove, and the guide portion 60 is configured as a guide groove.

[0580] In some embodiments, the guide groove is a straight groove. The guide channel is a curved groove. The guide groove is located on the side of the guide channel near the first side edge W.

[0581] In some embodiments, the distance between the guide groove and the door sidewall 32 is reduced along the direction from the rear wall 33 to the front wall 31.

[0582] In some embodiments, the trajectory line of the relative motion of the first central axis P guided by the guide portion 50 is the guide trajectory line S, and the trajectory line of the relative motion of the second central axis Q guided by the guide portion 60 is the guide trajectory line K.

[0583] For example, the guide trajectory line S is a straight line. The guide trajectory line S is located on the side of the guide trajectory line K closest to the first side edge W.

[0584] In some embodiments, the guide trajectory line S is the center trajectory line of the guide portion 50, and the guide trajectory line K is the center trajectory line of the guide portion 60.

[0585] When the guide section 50 is a guide groove structure, the center trajectory line of the guide groove is the guide trajectory line S. When the guide section 60 is a guide groove structure, the center trajectory line of the guide groove is the guide trajectory line K.

[0586] In some embodiments, the distance between the guide trajectory line S and the front wall 31 of the door is reduced along the direction from the end of the door body 30 away from the door side wall 32 towards the door side wall 32.

[0587] Along the direction from the end of the door body 30 away from the door side wall 32 towards the door side wall 32, the distance between the guide trajectory line K and the front wall 31 first increases, then decreases, and then increases again.

[0588] In some embodiments, the guide trajectory line S may extend from one end away from the door sidewall 32 toward the side closer to the front door wall 31 and the door sidewall 32.

[0589] The guide trajectory line K can extend from the side away from the door side wall 32 towards the side away from the front door wall 31 and closer to the door side wall 32, and then extend towards the side closer to both the front door wall 31 and the door side wall 32. The guide trajectory line S is located on the side of the guide trajectory line K closer to the first side edge W.

[0590] In some embodiments, the guide trajectory line K includes a first guide segment and a second guide segment connected to the end of the first guide segment near the door sidewall 32. The first guide segment extends from its end away from the door sidewall 32 in a direction close to the door sidewall 32 and away from the front wall 31, and the second guide segment extends from the end of the first guide segment near the door sidewall in a direction close to both the door sidewall 32 and the front wall 31. That is, the second guide segment extends from its end away from the door sidewall 32 in a direction close to both the door sidewall 32 and the front wall 31.

[0591] In some embodiments, referring to Figure 2, in the orthographic projection of the plane containing the top wall of the housing 10 (door 30), the door side wall 32 is taken as the Y-axis, and the plane passing through the first side edge W and perpendicular to the door side wall 32 is taken as the X-axis, that is, the plane containing the front wall 31 is taken as the X-axis (for example, the front wall 31 is perpendicular to the door side wall 32); here, the X-axis is perpendicular to the Y-axis and intersects at the origin O (the first side edge W). The direction from the front wall 31 to the rear wall 33 is taken as the positive direction of the Y-axis, and the direction from the door side wall 32 to the opposite end of the door 30 and the door side wall 32 is taken as the positive direction of the X-axis, forming a two-dimensional door coordinate system XOY. It should be noted that the door coordinate system XOY is a two-dimensional coordinate system that is stationary relative to the door 30.

[0592] In the XOY coordinate system of the gate, the function corresponding to the guide trajectory line S in the XOY coordinate system is denoted as Y = F(X).

[0593] The first derivative of Y = F(X) is denoted as F' x , F` x >0. Y = F(X) is a monotonically increasing function.

[0594] In some embodiments, the second derivative of Y = F(X) is denoted as F''. x ,F`` x =0. Y = F(X) is a linear function.

[0595] In some embodiments, in the door coordinate system XOY, the function corresponding to the guide trajectory line K in the coordinate system XOY is denoted as Y=K(X); Y=K(X) is a piecewise function, and the piecewise function is a continuous function; at this time, its left limit and right limit are equal at each segment point.

[0596] In some embodiments, in the gate coordinate system XOY, Y = K(X) as shown in formula (2).

[0597] Here, X1 > X2 > X3 > 0; K1(X2) = K2(X2);

[0598] Y = K1(X) is a function of the second guide segment in the coordinate system XOY;

[0599] Y = K2(X) is a function of the first guide segment in the coordinate system XOY.

[0600] As shown in Figures 18 to 20 and Figure 27, under the constraints of the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42, the opening process of the door 30 includes a first stage. The first stage is as follows:

[0601] In some embodiments, the guide trajectory line S includes a first guide point P1, a second guide point P2, and a third guide point P3 that are sequentially close to the door sidewall 32.

[0602] The first guide point P1, the second guide point P2, and the third guide point P3 are successively closer to the front wall 31 of the door. That is, the distance between the first guide point P1, the second guide point P2, and the third guide point P3 and the front wall 31 decreases in sequence.

[0603] The guide trajectory line S can extend from the first guide point P1 to the side closer to the door side wall 32 to the third guide point P3.

[0604] The guide trajectory line S can extend from the first guide point P1 to the side closer to the front wall 31 of the door to the third guide point P3.

[0605] The guiding trajectory line S can extend from the first guiding point P1 through the second guiding point P2 to the third guiding point P3.

[0606] In some embodiments, the guide trajectory line K includes a first guide point Q1, a second guide point Q2, and a third guide point Q3 that are sequentially close to the door sidewall 32.

[0607] The first guide point Q1, the second guide point Q2, and the third guide point Q3 move away from the front wall 31 in sequence. That is, the distance between the first guide point Q1, the second guide point Q2, and the third guide point Q3 and the front wall 31 increases in sequence.

[0608] The guide trajectory line K can extend from the first guide point Q1 to the side closer to the door sidewall 32 to the third guide point Q3.

[0609] The guide trajectory line K can extend from the first guide point Q1 to the third guide point Q3 on the side away from the front wall 31.

[0610] The guide trajectory line K can extend from the first guide point Q1 through the second guide point Q2 to the third guide point Q3.

[0611] During the process of the door 30 opening from the first angle G1 to the third angle G3, the first central axis P moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0612] As the door 30 opens from the first angle G1 to the third angle G3, the second central axis Q moves away from the front wall 31 and closer to the side wall 32. Here, the first angle G1 is smaller than the third angle G3 (i.e., G1 < G3 < G4 < G5 ... <G3)。

[0613] During the process of the door 30 opening from the first angle G1 to the third angle G3, the first central axis P moves from the first guide point P1 through the second guide point P2 to the third guide point P3.

[0614] During the process of the door 30 opening from the first angle G1 to the third angle G3, the second central axis Q moves from the first guide point Q1 through the second guide point Q2 to the third guide point Q3.

[0615] In some embodiments, during the process of the door 30 opening from the first angle G1 to the second angle G2, the central point I of the axis moves from the first midpoint I1 to the side closer to the front wall 31 and the side wall 32 of the door to the second midpoint I2.

[0616] During the process of the door 30 opening from the second angle G2 to the third angle G3, the center point I of the axis moves from the second midpoint I2 to the side away from the front wall 31 and closer to the side wall 32 of the door to the third midpoint I3.

[0617] During the process of the door 30 opening from the first angle G1 to the third angle G3, the central point I of the axis moves from the first midpoint I1 through the second midpoint I2 to the third midpoint I3.

[0618] During the process of the door 30 opening from the first angle G1 to the third angle G3, the center point I first moves towards the side closer to the front wall 31 and the side wall 32, and then moves away from the front wall 31 and closer to the side wall 32.

[0619] In some embodiments, the first angle G1 is smaller than the second angle G2, and the second angle G2 is smaller than the third angle G3 (i.e., G1). <G2<G3)。

[0620] During the first stage of opening, when the door body 30 opens to an angle... At that time, the first central axis P is located at the first guide point P1 of the guide trajectory line S, the second central axis Q is located at the first guide point Q1 of the guide trajectory line K, and the central point of the axis is located at the first midpoint I1.

[0621] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the second guide point P2 of the guide trajectory line S, the second central axis Q is located at the second guide point Q2 of the guide trajectory line K, and the central point of the axis is located at the second midpoint I2.

[0622] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the third guide point P3 of the guide trajectory line S, the second central axis Q is located at the third guide point Q3 of the guide trajectory line K, and the central point of the axis is located at the second midpoint I3.

[0623] In some embodiments, G G =G1.

[0624] In some embodiments of this disclosure, the first angle G1 = 0°.

[0625] In some embodiments, G G =G1=0°. At this time, when the opening angle of the door 30 is the first angle G1=0°, the door 30 is in the closed state.

[0626] The first stage described above refers to the process of door 30 opening from the first angle G1 to the third angle G3. When door 30 opens from the first angle G1 (e.g., G...),... G =G1 or G G During the process of opening from G2 to G3 (G1=0°), the first central axis P moves towards the side closer to the front wall 31 and the side wall 32 of the door. The second central axis Q moves away from the front wall 31 and towards the side wall 32 of the door.

[0627] The first central axis P moves from the first guide point P1 along the guide trajectory line S, passing through the second guide point P2 to the third guide point P3. The second central axis Q moves from the first guide point Q1 along the guide trajectory line K, passing through the second guide point Q2 to the third guide point Q3.

[0628] The opening process in the first stage described above is explained with reference to the second hinge component (guide part 50, guide part 60, or door body 30).

[0629] The door body 30 is subject to a first angle G1 (e.g., G...). G =G1 or G GDuring the opening process from G1=0° to the third angle G3, the axis segment PQ rotates clockwise from P1Q1 and moves sequentially to P2Q2 and P3Q3. That is, the movement trend of the axis segment PQ is P1Q1→P2Q2→P3Q3. At the same time, the movement trend of the central point I along with the axis segment PQ is I1→I2→I3. That is, during the opening process of the door 30, relative to the door 30, the central point I first moves towards the side closer to the front wall 31 and the side wall 32, and then moves away from the front wall 31 and closer to the side wall 32.

[0630] Since the guide portion 50 and the guide portion 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the housing 10. At this time, with the door body 30 as the reference, when the door body 30 is at a first angle G1 (e.g., G... G =G1 or G G During the entire process of opening from the third angle G3 (G1=0°), the box 10 (i.e., hinge plate 40) rotates clockwise relative to the door 30 and first moves towards the side closer to the front wall 31 and the side wall 32, and then moves away from the front wall 31 and closer to the side wall 32.

[0631] In summary, in the door body 30, the first angle G1 (for example, G...) G =G1 or G G During the process of opening from the door (G1=0°) to the second angle G2, with the door 30 (guide groove or guide groove) as the reference, the box 10 rotates and translates relative to the door 30. For example, the translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0632] During the process of the door 30 opening from the second angle G2 to the third angle G3, with the door 30 (guide groove or guide groove) as the reference, the housing 10 rotates and translates relative to the door 30. For example, this translation can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0633] Based on the relativity of motion, taking the box 10 as a reference, the door 30 is at a first angle G1 (e.g., G... G =G1 or G GDuring the process of opening from the second angle G2 (G1=0°), the door 30 is rotating and translating simultaneously. For example, the translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0634] During the process of the door 30 opening from the second angle G2 to the third angle G3, the door 30 is performing a rotational motion while also performing a translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0635] As shown in Figures 20 to 22 and Figure 28, under the constraints of the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42, the opening process of the door 30 also includes a second stage. The second stage is as follows:

[0636] In some embodiments, the guide trajectory line S further includes a fourth guide point P4 and a fifth guide point P5.

[0637] Here, the third guide point P3, the fourth guide point P4, and the fifth guide point P5 are successively further away from the door side wall 32.

[0638] The third guide point P3, the fourth guide point P4, and the fifth guide point P5 are successively farther away from the front wall 31. That is, the distance between the third guide point P3, the fourth guide point P4, and the fifth guide point P5 and the front wall 31 increases successively.

[0639] The guide trajectory line S can extend from the third guide point P3 to the fifth guide point P5 on the side away from the door sidewall 32.

[0640] The guide trajectory line S can extend from the third guide point P3 to the fifth guide point P5 on the side away from the front wall 31.

[0641] The guiding trajectory line S can extend from the third guiding point P3 through the fourth guiding point P4 to the fifth guiding point P5.

[0642] In some embodiments, the fifth guide point P5 is located on the side of the first guide point P1 near the door sidewall 32.

[0643] Then, the third guiding point P3, the fourth guiding point P4, the fifth guiding point P5, and the first guiding point P1 move away from the door side wall 32 in sequence.

[0644] In some embodiments, the fifth guide point P5 is located on the side of the first guide point P1 near the front wall 31 of the door.

[0645] Then, the third guide point P3, the fourth guide point P4, the fifth guide point P5, and the first guide point P1 move away from the front wall 31 in sequence. That is, the distance between the third guide point P3, the fourth guide point P4, the fifth guide point P5, and the first guide point P1 and the front wall 31 increases in sequence.

[0646] The guide trajectory line S can extend from the third guide point P3 to the first guide point P1 on the side away from the door sidewall 32.

[0647] The guide trajectory line S can extend from the third guide point P3 to the first guide point P1 on the side away from the front wall 31.

[0648] The guiding trajectory line S can extend from the third guiding point P3 through the fourth guiding point P4 and the fifth guiding point P5 to the first guiding point P1.

[0649] In some embodiments, the guide trajectory line K further includes a fourth guide point Q4 and a fifth guide point Q5.

[0650] Here, the third guide point Q3, the fourth guide point Q4, and the fifth guide point Q5 are successively close to the side wall 32 of the door.

[0651] The third guide point Q3, the fourth guide point Q4, and the fifth guide point Q5 move away from the front wall 31 in sequence. That is, the distance between the third guide point Q3, the fourth guide point Q4, and the fifth guide point Q5 and the front wall 31 increases in sequence.

[0652] The guide trajectory line K can be extended from the third guide point Q3 to the fifth guide point Q5, which is closer to the side wall 32 of the door.

[0653] The guide trajectory line K can be extended from the third guide point Q3 to the fifth guide point Q5 on the side away from the front wall 31.

[0654] The guide trajectory line K can be extended from the third guide point Q3 through the fourth guide point Q4 to the fifth guide point Q5.

[0655] During the process of the door 30 opening from the third angle G3 to the fifth angle G5, the first central axis P moves away from the front wall 31 and the side wall 32 of the door.

[0656] As the door 30 opens from the third angle G3 to the fifth angle G5, the second central axis Q moves away from the front wall 31 and closer to the side wall 32. Here, the third angle G3 is smaller than the fifth angle G5 (i.e., G3 < G5 ... <G5)。

[0657] During the process of the door 30 opening from the third angle G3 to the fifth angle G5, the first central axis P moves from the third guide point P3 through the fourth guide point P4 to the fifth guide point P5.

[0658] During the process of the door 30 opening from the third angle G3 to the fifth angle G5, the second central axis Q moves from the third guide point Q3 through the fourth guide point Q4 to the fifth guide point Q5.

[0659] In some embodiments, during the process of the door 30 opening from the third angle G3 to the fifth angle G5, the central point I of the axis moves from the third midpoint I3 to the side away from the front wall 31 and closer to the side wall 32, via the fourth midpoint I4, to the fifth midpoint I5. Here, the third angle G3 is smaller than the fifth angle G5 (i.e., G3... <G5)。

[0660] During the second stage of opening, when the door body 30 opens to an angle... At that time, the first central axis P is located at the third guiding point P3 of the guiding trajectory line S, the second central axis Q is located at the third guiding point Q3 of the guiding trajectory line K, and the central point of the axis is located at the third midpoint I3.

[0661] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the fourth guide point P4 of the guide trajectory line S, the second central axis Q is located at the fourth guide point Q4 of the guide trajectory line K, and the central point of the axis is located at the fourth midpoint I4.

[0662] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the fifth guide point P5 of the guide trajectory line S, the second central axis Q is located at the fifth guide point Q5 of the guide trajectory line K, and the central point of the axis is located at the fifth midpoint I5.

[0663] In some embodiments, G4 = 90°.

[0664] The second stage described above is the process of door 30 opening from the third angle G3 to the fifth angle G5. During the process of door 30 opening from the third angle G3 through the fourth angle G4 to the fifth angle G5, the first central axis P moves away from the front wall 31 and the side wall 32. The second central axis Q moves away from the front wall 31 and closer to the side wall 32.

[0665] During the process of the door 30 opening from the third angle G3 to the fifth angle G5, the first central axis P moves from the third guide point P3 along the guide trajectory line S, passing through the fourth guide point P4, to the fifth guide point P5. The second central axis Q moves from the third guide point Q3 along the guide trajectory line K, passing through the fourth guide point Q4, to the fifth guide point Q5.

[0666] The second stage of the opening process described above is explained with reference to the second hinge component (guide part 50, guide part 60 or door body 30).

[0667] During the opening of the door 30 from the third angle G3 to the fifth angle G5, the central axis segment PQ rotates clockwise from P3Q3 and moves sequentially to P4Q4 and P5Q5. That is, the movement trend of the central axis segment PQ is P3Q3→P4Q4→P5Q5. Simultaneously, the central point I moves along with the central axis segment PQ in the following trend: I3→I4→I5. In other words, during the opening of the door 30, relative to the door 30, the central point I moves away from the front wall 31 and closer to the side wall 32.

[0668] Since the guide part 50 and the guide part 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the box body 10. At this time, with the door body 30 as the reference, during the entire process of the door body 30 opening from the third angle G3 to the fifth angle G5, the box body 10 (i.e. the hinge plate 40) rotates clockwise relative to the door body 30 and moves to the side away from the front wall 31 and closer to the side wall 32.

[0669] In summary, during the process of the door 30 opening from the third angle G3 to the fifth angle G5, with the door 30 (guide groove or guide channel) as the reference, the housing 10 performs both rotational and translational motion relative to the door 30. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0670] Based on the relativity of motion, taking the box 10 as a reference frame, during the process of the door 30 opening from the third angle G3 to the fifth angle G5, the door 30 is simultaneously undergoing rotational and translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0671] In some embodiments, G3 = G F1 In some embodiments, G5 = G F2 .

[0672] As shown in Figures 22 to 24 and Figure 29, under the constraints of the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42, the opening process of the door 30 also includes a third stage. The third stage is as follows:

[0673] In some embodiments, the guide trajectory line S further includes a sixth guide point P6 and a seventh guide point P7 that are sequentially close to the door sidewall 32.

[0674] Here, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 are successively close to the side wall 32 of the door. The fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 are successively close to the front wall 31 of the door.

[0675] Based on the relative positional relationship between the first guide point P1 and the fifth guide point P5, the first guide point P1, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 are successively close to the side wall 32 of the door.

[0676] The first guide point P1, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 move closer to the front wall 31 in sequence. That is, the distance between the first guide point P1, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 and the front wall 31 decreases in sequence.

[0677] The guide trajectory line S can extend from the fifth guide point P5 to the seventh guide point P7, which is closer to the side wall 32 of the door.

[0678] The guide trajectory line S can extend from the fifth guide point P5 to the seventh guide point P7, towards the side closer to the front wall 31.

[0679] The guiding trajectory line S can extend from the fifth guiding point P5 through the sixth guiding point P6 to the seventh guiding point P7.

[0680] In some embodiments, the guide trajectory line K further includes a sixth guide point Q6 and a seventh guide point Q7 that are sequentially close to the door sidewall 32.

[0681] Here, the fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7 are successively close to the side wall 32 of the door.

[0682] The fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7 move away from the front wall 31 in sequence. That is, the distance between the fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7 and the front wall 31 increases in sequence.

[0683] The guide trajectory line K can be extended from the fifth guide point Q5 to the seventh guide point Q7, which is closer to the side wall 32 of the door.

[0684] The guide trajectory line K can be extended from the fifth guide point Q5 to the seventh guide point Q7 on the side away from the front wall 31.

[0685] The guide trajectory line K can be extended from the fifth guide point Q5 through the sixth guide point Q6 to the seventh guide point Q7.

[0686] Based on the relative positions of the aforementioned guide points, the first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7 are successively close to the side wall 32 of the door.

[0687] The first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7 are successively moved away from the front wall 31.

[0688] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, the first central axis P moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0689] As the door 30 opens from the fifth angle G5 to the seventh angle G7, the second central axis Q moves away from the front wall 31 and closer to the side wall 32. Here, the fifth angle G5 is smaller than the seventh angle G7 (i.e., G5... <G7)。

[0690] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, the first central axis P moves from the fifth guide point P5 through the sixth guide point P6 to the seventh guide point P7.

[0691] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, the second central axis Q moves from the fifth guide point Q5 through the sixth guide point Q6 to the seventh guide point Q7.

[0692] In some embodiments, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6, the central point I of the axis moves from the fifth midpoint I5 to the side away from the front wall 31 and closer to the side wall 32, and then to the sixth midpoint I6. Here, the fifth angle G5 < the sixth angle G6 (i.e., G5 < G6 ... <G7)。

[0693] During the process of the door 30 opening from the sixth angle G6 to the seventh angle G7, the central point I moves from the sixth midpoint I6 towards the side closer to the front wall 31 and the side wall 32 of the door to the seventh midpoint I7. Here, the sixth angle G6 < the seventh angle G7 (i.e., G6 < G7). <G7)。

[0694] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, the central point I of the axis moves from the fifth midpoint I5 through the sixth midpoint I6 to the seventh midpoint I7.

[0695] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, the center point I first moves away from the front wall 31 and closer to the side wall 32, and then moves closer to both the front wall 31 and the side wall 32.

[0696] Here, the fifth angle G5 is less than the sixth angle G6, and the sixth angle G6 is less than the seventh angle G7 (i.e., G5). <G6<G7)。

[0697] During the third stage of opening, when the door body 30 opens to an angle... At that time, the first central axis P is located at the fifth guide point P5 of the guide trajectory line S, the second central axis Q is located at the fifth guide point Q5 of the guide trajectory line K, and the central point of the axis is located at the fifth midpoint I5.

[0698] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the sixth guide point P6 of the guide trajectory line S, the second central axis Q is located at the sixth guide point Q6 of the guide trajectory line K, and the central point of the axis is located at the sixth midpoint I6.

[0699] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the seventh guide point P7 of the guide trajectory line S, the second central axis Q is located at the seventh guide point Q7 of the guide trajectory line K, and the central point of the axis is located at the seventh midpoint I7.

[0700] The third stage described above is the process of door 30 opening from the fifth angle G5 to the seventh angle G7. During the process of door 30 opening from the fifth angle G5 through G6 to G7, the first central axis P moves towards the side closer to the front wall 31 and the side wall 32. The second central axis Q moves away from the front wall 31 and towards the side wall 32.

[0701] During the process of the door 30 opening from the fifth angle G5 to the seventh angle G7, the first central axis P moves from the fifth guide point P5 along the guide trajectory line S, passing through the sixth guide point P6 to the seventh guide point P7. The second central axis Q moves from the fifth guide point Q5 along the guide trajectory line K, passing through the sixth guide point Q6 to the seventh guide point Q7.

[0702] The opening process in the third stage described above is explained with reference to the second hinge component (guide part 50, guide part 60, or door body 30).

[0703] During the opening of the door 30 from the fifth angle G5 to the seventh angle G7, the central axis segment PQ rotates clockwise from P5Q5 and moves sequentially to P6Q6 and P7Q7. That is, the movement trend of the central axis segment PQ is P5Q5→P6Q6→P7Q7. Simultaneously, the central point I moves with the central axis segment PQ in the following trend: I5→I6→I7. In other words, during the opening of the door 30, relative to the door 30, the central point I first moves away from the front wall 31 and closer to the side wall 32, and then moves closer to both the front wall 31 and the side wall 32.

[0704] Since the guide part 50 and the guide part 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the box body 10. At this time, with the door body 30 as the reference, during the entire process of the door body 30 opening from the fifth angle G5 to the seventh angle G7, the box body 10 (i.e. the hinge plate 40) rotates clockwise relative to the door body 30 and first moves away from the front wall 31 and closer to the side wall 32, and then moves closer to both the front wall 31 and the side wall 32.

[0705] In summary, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6, with the door 30 (guide groove or guide channel) as the reference frame, the housing 10 performs both rotational and translational motion relative to the door 30. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0706] During the process of the door 30 opening from the sixth angle G6 to the seventh angle G7, with the door 30 (guide groove or guide groove) as the reference, the housing 10 rotates and translates relative to the door 30. For example, this translation can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0707] Based on the relativity of motion, taking the box 10 as a reference frame, during the process of the door 30 opening from the fifth angle G5 to the sixth angle G6, the door 30 is simultaneously undergoing rotational and translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0708] During the process of the door 30 opening from the sixth angle G6 to the seventh angle G7, the door 30 is performing a rotational motion while also performing a translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0709] As shown in Figures 24 to 25 and Figure 30, under the constraints of the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42, the opening process of the door 30 also includes a fourth stage. The fourth stage is as follows:

[0710] In some embodiments, the guide trajectory line S further includes an eighth guide point P8.

[0711] Here, the seventh guide point P7 and the eighth guide point P8 are successively close to the side wall 32 of the door. The seventh guide point P7 and the eighth guide point P8 are successively close to the front wall 31 of the door.

[0712] The guide trajectory line S can be extended from the seventh guide point P7 to the eighth guide point P8, which is closer to the side wall 32 of the door.

[0713] The guide trajectory line S can be extended from the seventh guide point P7 to the eighth guide point P8 on the side closer to the front wall 31.

[0714] Based on the relative positions of the first guide point P1, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7, the first guide point P1, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, and the eighth guide point P8 are successively close to the side wall 32 of the door.

[0715] The first guide point P1, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, and the eighth guide point P8 move closer to the front wall 31 in sequence. That is, the distance between the first guide point P1, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, and the eighth guide point P8 and the front wall 31 decreases in sequence.

[0716] The guide trajectory line S can extend from the first guide point P1 to the side closer to the door side wall 32 to the eighth guide point P8.

[0717] The guide trajectory line S can extend from the first guide point P1 to the side closer to the front wall 31 of the door to the eighth guide point P8.

[0718] The guiding trajectory line S can extend from the first guiding point P1 through the fifth guiding point P5, the sixth guiding point P6, the seventh guiding point P7, and finally to the eighth guiding point P8.

[0719] In some embodiments, the eighth guide point P8 is located on the side of the third guide point P3 near the door sidewall 32.

[0720] The eighth guide point P8 is located on the side of the third guide point P3 near the front wall 31 of the door.

[0721] The seventh guide point P7 is located on the side of the third guide point P3 away from the door sidewall 32.

[0722] The seventh guiding point P7 is located on the side of the third guiding point P3 away from the front wall 31.

[0723] Then, the guiding trajectory line S can extend from the first guiding point P1 through the fifth guiding point P5, the sixth guiding point P6, the seventh guiding point P7, the third guiding point P3 to the eighth guiding point P8.

[0724] In some embodiments, the guide trajectory line K also includes an eighth guide point Q8 near the door sidewall 32.

[0725] Here, the seventh guide point Q7 and the eighth guide point Q8 are successively close to the side wall 32 of the door.

[0726] The seventh guide point Q7 and the eighth guide point Q8 move closer to the front wall 31 of the door in sequence. That is, the distance between the seventh guide point Q7, the eighth guide point Q8 and the front wall 31 of the door decreases in sequence.

[0727] The guide trajectory line K can be extended from the seventh guide point Q7 to the eighth guide point Q8 on the side closer to the door side wall 32.

[0728] The guide trajectory line K can be extended from the seventh guide point Q7 to the eighth guide point Q8 on the side closer to the front wall 31.

[0729] During the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the first central axis P moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0730] As the door 30 opens from the seventh angle G7 to the eighth angle G8, the second central axis Q moves towards the side closer to the front wall 31 and the side wall 32. Here, the seventh angle G7 < the eighth angle G8 (i.e., G7 < G8). <G8)。

[0731] During the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the first central axis P moves from the seventh guide point Q7 to the eighth guide point P8.

[0732] During the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the second central axis Q moves from the seventh guide point Q7 to the eighth guide point Q8.

[0733] In some embodiments, during the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the central point I of the axis moves from the seventh midpoint I7 to the side closer to the front wall 31 and the side wall 32 of the door to the eighth midpoint I8.

[0734] During the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the center point I of the axis moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0735] During the fourth stage of opening, the opening angle of door 30... At that time, the first central axis P is located at the seventh guide point P7 of the guide trajectory line S, the second central axis Q is located at the seventh guide point Q7 of the guide trajectory line K, and the central point of the axis is located at the seventh midpoint I7.

[0736] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the eighth guide point P8 of the guide trajectory line S, the second central axis Q is located at the eighth guide point Q8 of the guide trajectory line K, and the central point of the axis is located at the eighth midpoint I8.

[0737] The fourth stage above is the process of the door 30 opening from the seventh angle G7 to the eighth angle G8. During the process of the door 30 opening from the seventh angle G7 to G8, the first central axis P moves towards the side closer to the front wall 31 and the side wall 32 of the door, and the second central axis Q moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0738] During the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the first central axis P moves from the seventh guide point P7 along the guide trajectory line S to the eighth guide point P8. The second central axis Q moves from the seventh guide point Q7 along the guide trajectory line K to the eighth guide point Q8.

[0739] The opening process in the fourth stage described above is explained with reference to the second hinge component (guide part 50, guide part 60, or door body 30).

[0740] During the opening of the door 30 from the seventh angle G7 to the eighth angle G8, the central axis segment PQ rotates clockwise from P7Q7 to P8Q8. That is, the movement trend of the central axis segment PQ is P7Q7→P8Q8. Simultaneously, the central point I moves along with the central axis segment PQ, with the movement trend I7→I8. In other words, during the opening of the door 30, relative to the door 30, the central point I moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0741] Since the guide part 50 and the guide part 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the housing 10. At this time, with the door body 30 as the reference, during the entire process of the door body 30 opening from the seventh angle G7 to the eighth angle G8, the housing 10 (i.e. the hinge plate 40) rotates clockwise relative to the door body 30 and moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0742] In summary, during the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, with the door 30 (guide groove or guide channel) as the reference, the housing 10 performs both rotational and translational motion relative to the door 30. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0743] Based on the relativity of motion, taking the box 10 as a reference frame, during the process of the door 30 opening from the seventh angle G7 to the eighth angle G8, the door 30 is simultaneously undergoing rotational and translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0744] As shown in Figures 25 to 26 and Figure 31, under the aforementioned constraints on the guide portion 50 and the first axis 41, and the guide portion 60 and the second axis 42, the opening process of the door 30 includes a fifth stage. The fifth stage is as follows:

[0745] In some embodiments, the guide trajectory line S further includes a ninth guide point P9.

[0746] Here, the eighth guide point P8 and the ninth guide point P9 move away from the side wall of the door by 32 in sequence. The eighth guide point P8 and the ninth guide point P9 move away from the front wall of the door by 31 in sequence.

[0747] The guide trajectory line S can extend from the eighth guide point P8 to the ninth guide point P9 on the side away from the door sidewall 32.

[0748] The guide trajectory line S can extend from the eighth guide point P8 to the ninth guide point P9, away from the front wall 31. That is, the distances between the eighth guide point P8, the ninth guide point P9, and the front wall 31 increase sequentially.

[0749] In some embodiments, the ninth guide point P9 is located on the side of the third guide point P3 near the door sidewall 32.

[0750] The ninth guide point P9 is located on the side of the third guide point P3 near the front wall 31 of the door.

[0751] Then, the guiding trajectory line S can extend from the first guiding point P1 through the third guiding point P3 and the ninth guiding point P9 to the eighth guiding point P8.

[0752] In some embodiments, the guide trajectory line K further includes a ninth guide point Q9 near the door sidewall 32.

[0753] Here, the eighth guide point Q8 and the ninth guide point Q9 are successively close to the side wall 32 of the door.

[0754] The eighth guide point Q8 and the ninth guide point Q9 move closer to the front wall 31 in sequence. That is, the distance between the eighth guide point Q8, the ninth guide point Q9 and the front wall 31 decreases in sequence.

[0755] The guide trajectory line K can be extended from the eighth guide point Q8 to the ninth guide point Q9, which is closer to the side wall 32 of the door.

[0756] The guide trajectory line K can be extended from the eighth guide point Q8 to the ninth guide point Q9 on the side closer to the front wall 31.

[0757] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the first central axis P moves away from the front wall 31 and the side wall 32 of the door.

[0758] As the door 30 opens from the eighth angle G8 to the ninth angle G9, the second central axis Q moves towards the side closer to the front wall 31 and the side wall 32. Here, the eighth angle G8 is smaller than the ninth angle G9 (i.e., G8... <G9)。

[0759] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the first central axis P moves from the eighth guide point Q8 to the ninth guide point P9.

[0760] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the second central axis Q moves from the eighth guide point Q8 to the ninth guide point Q9.

[0761] In some embodiments, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the central point I of the axis moves from the eighth midpoint I8 to the side away from the front wall 31 and closer to the side wall 32 of the door to the ninth midpoint I9.

[0762] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the center point I moves away from the front wall 31 and closer to the side wall 32.

[0763] During the fifth stage of opening, the opening angle of door 30... At that time, the first central axis P is located at the eighth guide point P8 of the guide trajectory line S, the second central axis Q is located at the eighth guide point Q8 of the guide trajectory line K, and the central point of the axis is located at the eighth midpoint I8.

[0764] When the door opens to an angle of 30 degrees At that time, the first central axis P is located at the ninth guide point P9 of the guide trajectory line S, the second central axis Q is located at the ninth guide point Q9 of the guide trajectory line K, and the central point of the axis is located at the ninth midpoint I9.

[0765] The fifth stage described above is the process by which the door 30 opens from the eighth angle G8 to the ninth angle G9. During this process, the first central axis P moves away from the front wall 31 and the side wall 32, while the second central axis Q moves closer to the front wall 31 and the side wall 32.

[0766] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the first central axis P moves from the eighth guide point P8 along the guide trajectory line S to the ninth guide point P9. The second central axis Q moves from the eighth guide point Q8 along the guide trajectory line K to the ninth guide point Q9.

[0767] The opening process in the fifth stage described above is explained with reference to the second hinge component (guide part 50, guide part 60, or door body 30).

[0768] During the opening of the door 30 from the eighth angle G8 to the ninth angle G9, the central axis segment PQ rotates clockwise from P8Q8 to P9Q9. That is, the movement trend of the central axis segment PQ is P8Q8→P9Q9. Simultaneously, the central point I moves along with the central axis segment PQ, with the movement trend I8→I9. In other words, during the opening of the door 30, relative to the door 30, the central point I moves away from the front wall 31 and closer to the side wall 32.

[0769] Since the guide part 50 and the guide part 60 are provided on the door body 30, the axis line segment PQ can show the movement trajectory of the hinge plate 40 provided on the box body 10. At this time, with the door body 30 as the reference, during the entire process of the door body 30 opening from the eighth angle G8 to the ninth angle G9, the box body 10 (i.e. the hinge plate 40) rotates clockwise relative to the door body 30 and moves to the side away from the front wall 31 and closer to the side wall 32.

[0770] In summary, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, with the door 30 (guide groove or guide channel) as the reference, the housing 10 performs both rotational and translational motion relative to the door 30. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0771] Based on the relativity of motion, taking the box 10 as a reference frame, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the door 30 is undergoing both rotational and translational motion. For example, this translational motion can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0772] In some embodiments, the first guide point P1, the second guide point P2, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 are located on the guide trajectory line S.

[0773] Along the direction from the rear wall 33 to the front wall 31, the distance between the guide trajectory line S and the side wall 32 of the door decreases.

[0774] In some embodiments, the guide trajectory line S is a straight line. The angle between the guide trajectory line S and the front wall of the door is denoted as γ.

[0775] Here, γ is greater than or equal to the first included angle reference value; the first included angle reference value is between 27° and 37°. The first included angle reference value can be 27°, 32°, or 37°. That is, γ ≥ 27°, γ ≥ 32°, or γ ≥ 37°.

[0776] When γ ≥ 27°, the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies are met. When γ ≥ 32°, it is easy to meet the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies. When γ ≥ 32°, it is even easier to meet the requirements for fixed space of the mounting block and the minimum thickness of the door body it occupies.

[0777] γ is less than or equal to the second included angle reference value; the second included angle reference value can be any value between 38° and 48°.

[0778] For example, the reference value for the second included angle can be 38°, 43°, or 48°. That is, γ≤38°, γ≤43°, or γ≤48°.

[0779] When γ ≤ 38°, it is easier to meet the wall thickness requirements between guide portion 50 and guide portion 60. When γ ≤ 43°, it is easier to meet the wall thickness requirements between guide portion 50 and guide portion 60. When γ ≤ 48°, the wall thickness requirements between guide portion 50 and guide portion 60 are met.

[0780] If γ is too large (e.g., greater than the second included angle reference value), the wall thickness between the guide portion 50 and the guide portion 60 becomes too thin, reducing the strength of the guide portion 50 and the guide portion 60. Furthermore, with a large distance between the end of the guide portion 50 away from the door side wall 32 and the front wall 31, the dimension of the guide portion 60 increases synchronously in the direction perpendicular to the front wall 31. This increases the overall trajectory of the guide portion 50 and the guide portion 60 in the direction perpendicular to the front wall 31, leading to an increase in the thickness of the door body 30 and affecting its use in refrigerators (such as ultra-thin refrigerators). In addition, excessive door body thickness increases the obstruction of the access opening; and to ensure that drawers installed in the storage compartment can be pulled out, the lateral width of the drawers needs to be reduced, decreasing the effective utilization of the lateral space of the storage compartment.

[0781] If γ is too small (e.g., less than the first included angle reference value), the space for fixing fasteners between the guide portion 50 and the guide portion 60 of the mounting block will be insufficient. To meet the fixing requirements, the mounting area of ​​the mounting block needs to be increased; and to ensure the fixing strength of the mounting block, the dimension of the mounting block along the direction perpendicular to the front wall 31 of the door needs to be increased to increase the positions for fixing fasteners. Increasing the dimension of the mounting block along the direction perpendicular to the front wall 31 of the door will lead to an increase in the thickness of the door body 30 that it is adapted to, affecting the use of the door body 30 in refrigerators (such as ultra-thin refrigerators). In addition, if the thickness of the door body 30 is too large, the obstruction of the access opening by the door body 30 will increase; and to ensure that the drawers installed in the storage compartment can be pulled out, the lateral width of the drawers needs to be reduced, which reduces the effective utilization of the lateral space of the storage compartment.

[0782] In some embodiments, during the process of the door 30 opening from the first angle G1 to the ninth angle G9, when the door 30 is opened to the first angle G1, the first central axis P is located at the first guide point P1 of the guide trajectory line S. The distance between the first guide point P1 of the guide trajectory line S and the door side wall 32 is the greatest. On the guide trajectory line S, the distance between the first guide point P1 and the front wall 31 of the door is the greatest.

[0783] In some embodiments, during the process of the door 30 opening from the first angle G1 to the ninth angle G9, when the door 30 opens to the eighth angle G8, the first central axis P is located at the eighth guide point P8 of the guide trajectory line S. The distance between the eighth guide point P8 of the guide trajectory line S and the door side wall 32 is minimized. The distance between the eighth guide point P8 of the guide trajectory line S and the door front wall 31 is minimized.

[0784] In some embodiments, the guide trajectory line S may extend from the first guide point P1 toward the side closer to the door sidewall 32 to the eighth guide point P8.

[0785] The guide trajectory line S can extend from the first guide point P1 to the side closer to the front wall 31 of the door to the eighth guide point P8.

[0786] The second guide point P2, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, and the ninth guide point P9 are located on the guide trajectory line S and between the first guide point P1 and the eighth guide point P8.

[0787] In some embodiments, the fourth angle G4 is 90°; the first angle G1 is less than the second angle G2; the second angle G2 is less than the fourth angle G4; the fourth angle G4 is less than the fifth angle G5; the fifth angle G5 is less than the sixth angle G6; the sixth angle G6 is less than the seventh angle G7; and the seventh angle G7 is less than the second direction angle G. F2 They are equal, and the seventh angle G7 is less than the eighth angle G8; the eighth angle G8 is less than the ninth angle G9.

[0788] In some embodiments, the first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 are located on the guide trajectory line K.

[0789] In some embodiments, the guide trajectory line K may extend from the first guide point Q1 toward the side closer to the door sidewall 32 to the ninth guide point Q9.

[0790] The guide trajectory line K can be extended from the first guide point Q1 to the side away from the front wall 31 to the seventh guide point Q7, then from the seventh guide point Q7 to the side closer to the front wall 31 to the eighth guide point Q8, and then from the eighth guide point Q8 to the side away from the front wall 31 to the ninth guide point Q9.

[0791] The guide trajectory line K can extend from the first guide point Q1 through the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, and finally to the ninth guide point Q9.

[0792] In some embodiments, the guide trajectory line K first extends from the first guide point Q1 to the side away from the front wall 31 and close to the side wall 32 of the door to the seventh guide point Q7, then extends from the seventh guide point Q7 to the side close to the front wall 31 and the side wall 32 of the door to the eighth guide point Q8, and then extends from the eighth guide point Q8 to the side away from the front wall 31 and close to the side wall 32 of the door to the ninth guide point Q9.

[0793] Along the direction from the end of the door body 30 away from the door side wall 32 towards the door side wall 32, the distance between the guide trajectory line K and the front wall 31 first increases, then decreases, and then increases again.

[0794] In some embodiments, the ninth guide point Q9 is located on the side of the seventh guide point Q7 near the door sidewall 32 and the door front wall 31.

[0795] The seventh guide point Q7 is the point where the distance between the guide trajectory line K and the front wall 31 is the maximum.

[0796] Here, the steering guide point Q Z This corresponds to the seventh guide point Q7. At this point, the steering angle G Z It is equal to the seventh angle G7.

[0797] In some embodiments, the first guide point P1 is located on the side of the first guide point Q1 near the rear wall 33 and the side wall 32 of the door. The seventh guide point P7 is located on the side of the seventh guide point Q7 near the front wall 31 and the side wall 32 of the door. The ninth guide point P9 is located on the side of the ninth guide point Q9 near the front wall 31 and away from the side wall 32 of the door.

[0798] Based on the situations described in the first, second, third, fourth, and fifth stages, it can be seen that during the opening process of the door 30 from the first angle G1 to the ninth angle G9, the first shaft 41 first moves towards the front wall 31 and the side wall 32 (G1-G3), then moves away from the front wall 31 and the side wall 32 (G3-G5), then moves towards the front wall 31 and the side wall 32 again (G5-G8), and then moves away from the front wall 31 and the side wall 32 again (G8-G9). In summary, during the opening process of the door 30 from the first angle G1 to the ninth angle G9, the first shaft 41 undergoes three turns relative to the direction of movement of the door 30. The hinge assembly incorporating the above trajectory characteristics reduces the size of the guide portion 50 and fully utilizes the small-sized guide portion 50 to complete the opening of the door 30 at a large angle.

[0799] Based on the situations observed in the first, second, third, fourth, and fifth stages, it can be concluded that, according to the relativity of motion, with the box 10 as the frame of reference, the door 30 undergoes both rotational and translational motion. This translational motion includes a displacement component parallel to the rear wall 33 and a displacement component parallel to the side wall 32. Here, the displacement component parallel to the rear wall 33 is denoted as the first direction displacement. The displacement component parallel to the door sidewall 32 in the second direction. During different opening stages of the door 30, the displacement in the first direction Second direction displacement The meanings can differ.

[0800] In summary, based on the description of the motion trajectories of the first central axis P and the second central axis Q during the first to fifth stages of the process of the gate body 30 and above, and the movement trend of the synchronous axis center point I, it can be known that the motion trajectory of the axis center point I is.

[0801] As shown in Figure 32, the trajectory of the center point I relative to the door 30 includes the first center trajectory segment.

[0802] First axis trajectory segment: During the process of the door 30 opening from the first angle G1 to the second angle G2, the center point I of the axis moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0803] Here, the central point I of the axis moves from the first midpoint I1 to the side closer to the front wall 31 and the side wall 32 of the door to the second midpoint I2.

[0804] Taking the box body 10 as a reference, the door body 30 is at a first angle G1 (for example, G...). G =G1 or G G During the process of opening from the second angle G2 (G1=0°), the door 30 is rotating and translating simultaneously. For example, this translation can be: relative to the door 30, the box 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0805] The door body 30 is subject to a first angle G1 (e.g., G...). G =G1 or G G During the process of opening from the first angle G1 to the second angle G2 (=G1=0°), the displacement in the first direction is... Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing to the side away from the front wall 31.

[0806] As shown in Figure 32, the trajectory of the center point I relative to the door 30 also includes the second center trajectory segment.

[0807] Second axis trajectory segment: During the process of the door 30 opening from the second angle G2 to the sixth angle G6, the center point I of the axis moves away from the front wall 31 and closer to the side wall 32 of the door.

[0808] The central point I of the axis moves from the second central point I2 to the side away from the front wall 31 and close to the side wall 32 of the door, passing through the third central point I3, the fourth central point I4, the fifth central point I5, and finally to the sixth central point I6.

[0809] With the housing 10 as a reference, during the process of the door 30 opening from the second angle G2 to the sixth angle G6, the door 30 is performing a rotational motion while also performing a translational motion. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0810] During the process of the door 30 opening from the second angle G2 to the sixth angle G6, the first direction displacement... Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing towards the side of the wall in front of the door, 31.

[0811] In some embodiments, the difference between the sixth angle G6 and 90° is denoted as ΔG6;

[0812] Here, ΔG6 is greater than or equal to the first reference difference; the first reference difference can be any value between 0° and 3°.

[0813] For example, the first reference difference can be 0°, 1°, or 3°. That is, ΔG6 ≥ 0°, ΔG6 ≥ 1°, or ΔG6 ≥ 3°.

[0814] When ΔG6 ≥ 0°, the requirement of door 30 blocking the retrieval opening is met. When ΔG6 ≥ 1°, the requirement of door 30 blocking the retrieval opening is easily met. When ΔG6 ≥ 3°, the requirement of door 30 blocking the retrieval opening is even more easily met.

[0815] ΔG6 is less than or equal to the second reference difference; the second reference difference can be any value between 5° and 7°.

[0816] For example, the second reference difference can be 5°, 6°, or 7°. That is, ΔG6 ≤ 5°, ΔG6 ≤ 6°, or ΔG6 ≤ 7°.

[0817] When ΔG6 ≤ 5°, it is easier to meet the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100. When ΔG6 ≤ 6°, it is easier to meet the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100. When ΔG6 ≤ 7°, the maximum opening angle requirement of the refrigerator door 30 placed inside the storage cabinet 100 is met.

[0818] Here, if ΔG6 is too small (e.g., less than the first reference difference), after the door 30 is opened to 90°, the amount of outward displacement is too small, and the amount of obstruction of the pick-up and put-down opening by the door 30 is too large, making it inconvenient to pick up and put down items.

[0819] If ΔG6 is too large (e.g., greater than the second reference difference), after the door 30 is opened to 90°, the outward displacement is too large, the distance between the door 30 and the cabinet 100 is too close, the maximum angle that the refrigerator door 30 placed in the cabinet 100 can open is reduced, which is not conducive to the door 30 being opened to a larger angle, and it is not convenient to take out or put in items placed inside the door 30.

[0820] As shown in Figure 32, the trajectory of the center point I relative to the door 30 also includes the third center trajectory segment.

[0821] Third axis trajectory segment: During the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, the center point I of the axis moves towards the side closer to the front wall 31 and the side wall 32 of the door.

[0822] The central point I of the axis moves from the sixth midpoint I6 to the side closer to the front wall 31 and the side wall 32 of the door, passing through the seventh midpoint I7 to the eighth midpoint I8.

[0823] With the housing 10 as a reference, as the door 30 opens from the sixth angle G6 to the eighth angle G8, the door 30 undergoes both rotational and translational motion. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0824] During the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, the first direction displacement... Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing to the side away from the front wall 31.

[0825] As shown in Figure 32, the trajectory of the center point I relative to the door 30 also includes the fourth axis trajectory segment.

[0826] Fourth axis trajectory segment: During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the center point I of the axis moves away from the front wall 31 and closer to the side wall 32 of the door.

[0827] The central point I of the axis moves from the eighth midpoint I8 to the ninth midpoint I9, away from the front wall 31 and closer to the side wall 32 of the door.

[0828] With the housing 10 as a reference, as the door 30 opens from the eighth angle G8 to the ninth angle G9, the door 30 undergoes both rotational and translational motion. For example, this translational motion can be: relative to the door 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0829] During the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the first direction displacement... Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing towards the side of the wall in front of the door, 31.

[0830] During the process of the door 30 opening from the first angle G1 to the ninth angle G9, the trajectory of the central point I relative to the door 30 is denoted as the central point trajectory line. Here, the distance between the sixth midpoint I6 on the central point trajectory line and the front wall 31 of the door is the greatest.

[0831] Here, the reversing midpoint I' can correspond to the sixth midpoint I6. At this time, the reversing angle G' is equal to the sixth angle G6.

[0832] In some embodiments, G1 < G2 < G3 = G F1 <90°<G5=G F2 <G6<G8<G9.

[0833] In some embodiments, G1 = G H1 <G2<G3=G H2 <G4=90° <G5=G H3 <G6<G8=G H4 <G9.

[0834] It should be noted that pointing towards the door side wall 32 refers to the direction from the opposite end of the door body 30 and the door side wall 32 towards the door side wall 32.

[0835] Pointing away from the door side wall 32 refers to the direction from the door side wall 32 towards the opposite end of the door body 30 and the door side wall 32.

[0836] "Pointing towards the front wall 31" refers to the direction from the back wall 33 towards the front wall 31.

[0837] Pointing away from the front wall 31 means pointing from the front wall 31 to the back wall 33.

[0838] It should be noted that the displacement in the first direction Second direction displacement All of these are instantaneous relative translational displacements, used to illustrate the instantaneous translational movement trend of the door 30 relative to the box 10.

[0839] As shown in Figures 33A to 33H, a displacement coordinate system AOB is established on the side of the box 10 near the door 30, within the plane containing the top wall of the box 10. In the displacement coordinate system AOB, OB is perpendicular to the plane containing the pick-up and put-out opening, and OA is parallel to the plane containing the pick-up and put-out opening. In the displacement coordinate system AOB, the direction from the side wall of the second body to the side wall of the first body is defined as positive, and the direction from the pick-up and put-out opening to the front wall 31 of the door 30 when it is closed (from back to front) is also positive. It should be noted that during the opening of the door 30, the displacement coordinate system AOB remains stationary relative to the box 10 and does not move with the opening of the door 30. During the opening of the door 30, the relative position of the door coordinate system XOY relative to the displacement coordinate system AOB changes continuously with the change of the opening angle of the door 30. When the opening angle of the door 30 is determined, the instantaneous relative position of the door coordinate system XOY relative to the displacement coordinate system AOB remains relatively stationary.

[0840] In some embodiments, in the displacement coordinate system AOB, the door 30 has a first direction displacement parallel to the rear wall 33 of the door. and the second direction displacement parallel to the door sidewall 32 Displacement in the first direction The displacement component on axis A is The displacement along the B-axis is Second directional displacement The displacement component on axis A is The displacement along the B-axis is

[0841] (1) As shown in Figures 33A to 33D, the door 30 is positioned at a first angle G1 (for example, G...). G =G1 or G G During the opening process from G1=0° to G4=90°, as the door 30 rotates counterclockwise relative to the box 10, the door side wall 32, the door rear wall 33, and the door front wall 31 also rotate counterclockwise during this opening phase. Within the plane of the top wall of the box 10, the door side wall 32 extends outward and forward along the direction from the second side edge N to the first side edge W (the door rear wall 33 points to the door front wall 31); the door rear wall 33 extends inward and forward along the direction from the door side wall 32 to the end of the door 30 opposite to the door side wall 32.

[0842] During the opening process described above (first angle G1 (e.g., G...) G =G1 or G G =G1=0°) opens to G4=90°), the door side wall 32 starts to rotate counterclockwise from a state parallel to the reference plane M0, the angle between the door side wall 32 and the plane where the retrieval opening is located decreases and the angle between it and the reference plane M0 increases; that is, when the door body 30 is opened from the first angle G1 (e.g., G4=90°), the door side wall 32 rotates counterclockwise from a state parallel to the reference plane M0. G =G1 or G G During the opening process from G1=0° to G4=90°, relative to the housing 10, along the direction from the second side edge N to the first side edge W, the door sidewall 32 extends away from the second sidewall and the access opening. Simultaneously, as the opening angle of the door 30 increases, the angle between the rear door wall 33 and the plane containing the access opening increases, and the angle between the rear door wall 33 and the reference plane M0 decreases; that is, as the door 30 opens from the first angle G1 (e.g., G4=90°), the angle between the rear door wall 33 and the reference plane M0 decreases. G =G1 or G G During the opening process from G1=0° to G4=90°, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 to the door side wall 32, the rear wall 33 of the door extends away from the first body side wall and the access port (close to the second body side wall and away from the access port).

[0843] (1.1) During the opening process of the door 30, the door 30 includes a first angle G1 (e.g., G) corresponding to the first axis trajectory segment. G =G1 or G G =G1=0°) The process of opening to the second angle G2.

[0844] As can be seen from the above description: in the door body 30, the first angle G1 (for example, G...) G =G1 or G GDuring the process of opening from the box 10 to the second angle G2 (G1=0°), the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32, with the box 10 as the reference. The displacement is parallel to the side wall 32 of the door and points to the side away from the front wall 31 of the door.

[0845] That is, in the door body 30, the first angle G1 (for example, G) G =G1 or G G During the process of opening from the first angle G1 to the second angle G2 (=G1=0°), the displacement in the first direction is... The second direction displacement points to the inner front side (inward and forward side) of the housing 10. Pointing to the inner rear side (inward and rearward side) of housing 10.

[0846] As shown in Figure 33B, in the displacement coordinate system AOB, the door body 30 is at a first angle G1 (e.g., G... G =G1 or G G During the process of opening from the first angle G1 to the second angle G2 (G1=0°), the door body 30 is displaced in the first direction. Located in the second quadrant (A < 0, B > 0). Second directional displacement. It is located in the third quadrant (A < 0, B < 0).

[0847] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0848] but, satisfy: It can be seen that: the door body 30 is formed by the first angle G1 (for example, G... G =G1 or G G During the process of opening from the first angle (G1=0°) to the second angle (G2), in the displacement coordinate system AOB, the first translational displacement of the door 30 is... satisfy: Therefore, it can be concluded that: relative to the housing 10, the door 30 also has a tendency to translate along the negative direction of the A-axis while rotating; that is, during the process of the door 30 opening from the first angle G1 to the second angle G2, the door 30 also has a tendency to translate inward while rotating relative to the housing 10.

[0849] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0850] The door body 30 is subject to a first angle G1 (e.g., G...). G =G1 or G G During the process of opening from the second angle G2 (G1=0°), Then there is It can be seen that: in the door body 30, the first angle G1 (for example, G) G =G1 or G G During the process of opening from the first angle (G1=0°) to the second angle (G2), in the displacement coordinate system AOB, the second translational displacement of the door 30 is... satisfy: Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of the B-axis. That is, during the process of the door 30 opening from the first angle G1 to the second angle G2, the door 30, while rotating relative to the housing 10, also exhibits a tendency to translate forward.

[0851] In conjunction with the translational trend of the door 30 along the A-axis, as the door 30 opens from the first angle G1 to the second angle G2, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate inward and forward.

[0852] In some embodiments, During the process of the door 30 opening from the first angle G1 to the second angle G2, the door 30 mainly moves inward, while also having a small tendency to move forward or backward, so that the door 30 moves inward to compensate for the displacement of the first side edge W due to the rotational motion, thereby avoiding the collision between the first side edge W and the cabinet 100.

[0853] (1.2) During the opening process of the door 30, the door 30 also includes a process corresponding to the opening from the second angle G2 to the fourth angle G4 = 90° in the second axis trajectory segment.

[0854] As can be seen from the above description, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, with the box body 10 as the reference, the door 30 includes a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. and a second directional displacement parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door.

[0855] That is, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, the displacement in the first direction The second direction displacement points to the inner front side (inward and forward side) of the housing 10. Pointing to the outer front side (outward and forward side) of housing 10.

[0856] As shown in Figures 33C and 33D, in the displacement coordinate system AOB, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, the first direction displacement of the door 30 is... Located in the second quadrant (A < 0, B > 0). Second directional displacement. It is located in the first quadrant (A>0, B>0).

[0857] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0858] but, satisfy: At this moment, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the second translational displacement of the door 30 is... Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of the B-axis. That is, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, the door 30, while rotating and opening relative to the housing 10, also exhibits a tendency to translate forward.

[0859] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0860] In some embodiments, as shown in FIG33C, when the door 30 is opened from the second angle G2 to the first turning angle G Z1 During the process, but, satisfy: At this time, the door 30 is opened from the second angle G2 to the first turning angle G. Z1 During the process, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move inward.

[0861] Based on the translational trend of the door 30 along the B-axis, as the door 30 opens from the second angle G2 to the first turning angle G... Z1 During the process, while the door 30 rotates and opens relative to the box 10, it also tends to move inward and forward.

[0862] As shown in Figure 33D, when the door body 30 changes direction from the first turning angle G... Z1 During the process of opening to the fourth angle G4 = 90°, but, satisfy: At this time, when the door body 30 changes from the first turning angle G Z1 During the process of opening to the fourth angle G4 = 90°, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move outwards.

[0863] Based on the translational trend of the door body 30 along the B-axis, when the door body 30 changes direction from the first turning angle G... Z1 During the process of opening to the fourth angle G4 = 90°, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to move outward and forward.

[0864] In summary, during the process of the door 30 moving from the second angle G2 to the fourth angle G4 = 90°, while the door 30 rotates and opens relative to the box 10, it also exhibits a tendency to first translate inward and then translate outward.

[0865] Combining the translational trend of the door 30 along the B-axis, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to first translate inward and forward, and then translate outward and forward.

[0866] Here, G2 < G Z1 <G4.

[0867] In some embodiments, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°... but, satisfy: At this moment, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the first translational displacement of the door 30 is... Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the negative A-axis. That is, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, the door 30, while rotating relative to the housing 10, also exhibits a tendency to translate inward.

[0868] In conjunction with the translational tendency of the door 30 along the B-axis, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate inward and forward.

[0869] In some embodiments, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°... but, satisfy: At this moment, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the first translational displacement of the door 30 is... Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of axis A. That is, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, the door 30, while rotating relative to the housing 10, also exhibits a tendency to translate outward.

[0870] Combining the translational trend of the door 30 along the B-axis, during the process of the door 30 opening from the second angle G2 to the fourth angle G4 = 90°, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate outward and forward.

[0871] Combining (1.1) to (1.2), it can be seen that during the process of the door 30 opening from the first angle G1 to the fourth angle G4 = 90° (G1 to G4), Z1 During the initial opening process of the door 30, there is a tendency for it to move inward, in order to compensate for the outward displacement of the first side edge caused by rotation in the early stage of the door 30 opening, and effectively avoid interference between the door 30 and the cabinet 100.

[0872] During the process of the door 30 opening from the first angle G1 to the fourth angle G4 = 90° (G Z1 ~G4=90°), the door 30 also tends to move outward during the process of opening to 90°, so as to reduce the obstruction of the pick-up and put-out opening by the door 30.

[0873] In addition, during the process of opening the door 30 from the first angle G1 to the fourth angle G4 = 90°, the door 30 moves forward (G1 ~ G4 = 90°) so that the door 30 is removed from the space limited by the cabinet 100, thereby reducing the restriction of the cabinet 100 on the opening angle of the door 30, and thus allowing the door 30 to open to a greater maximum angle within the cabinet 100.

[0874] In some embodiments, G1 < G2 < G3 = G F1 <G4=90°.

[0875] (2) As shown in Figure 33E, when the door 30 is opened to 90°, the door side wall 32 is parallel to the plane where the retrieval opening is located and perpendicular to the reference plane M0. At this time, the door rear wall 33 is parallel to the reference plane M0 and perpendicular to the plane where the retrieval opening is located. That is, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends from the inside to the outside; along the direction from the door side wall 32 to the end of the door body 30 opposite to the door side wall 32, the door rear wall 33 extends from the back to the front.

[0876] During the opening process of the door 30, the door 30 includes the process corresponding to when the door 30 opens to the fourth angle G4 = 90° in the second axis trajectory segment.

[0877] As can be seen from the above description, when the door 30 is opened to the fourth angle G4 = 90°, with the box 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. and a second directional displacement parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door.

[0878] That is, when the door 30 is opened to the fourth angle G4 = 90°, the displacement in the first direction The second direction displacement points to the front side (forward side) of housing 10. Pointing to the outside of housing 10 (outward side).

[0879] As shown in Figure 33E, in the displacement coordinate system AOB, when the door 30 is opened to the fourth angle G4 = 90°, the displacement of the door 30 in the first direction is... Displacement along axis B (A = 0, B > 0) in the second direction. Along axis A (A > 0, B = 0).

[0880] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0881] In some embodiments, when the door 30 is opened to the fourth angle G4 = 90°, then, satisfy: At this point, when the door 30 is opened to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the door 30 has a first translational displacement. satisfy: Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of axis A. That is, when the door 30 is opened to the fourth angle G4 = 90°, the door 30, while rotating relative to the housing 10, also exhibits a tendency to translate outwards.

[0882] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0883] but, satisfy: At this point, when the door 30 is opened to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the second translational displacement of the door 30 is... Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of the B-axis. That is, when the door 30 is opened to the fourth angle G4 = 90°, the door 30, while rotating relative to the housing 10, also exhibits a tendency to translate forward.

[0884] Combining the translational tendency of the door 30 along the A-axis, when the door 30 is opened to the fourth angle G4 = 90°, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate outward and forward.

[0885] (3) As shown in Figures 33F to 33H, during the process of the door 30 rotating from G4 = 90° to the ninth angle G9 (G9 > 90°), the door sidewall 32 rotates counterclockwise during the opening process relative to the box 10. In the plane of the top wall of the box 10, the door sidewall 32 extends outward and backward along the direction from the second side edge N to the first side edge W; the door rear wall 33 extends outward and forward along the direction from the door sidewall 32 to the end of the door 30 opposite to the door sidewall 32.

[0886] During the opening process described above, the door sidewall 32, initially perpendicular to the reference plane M0 (when the door 30 is opened 90°), rotates counterclockwise. The angle between the door sidewall 32 and the plane containing the retrieval opening increases, while the angle between the door sidewall 32 and the reference plane M0 decreases. Specifically, as the door 30 rotates from G4 = 90° to G9, relative to the housing 10, along the direction from the second side edge N to the first side edge W, the door sidewall 32 extends away from the second sidewall and closer to the retrieval opening. Simultaneously, the angle between the door rear wall 33 and the plane containing the retrieval opening decreases, while the angle between the door rear wall 33 and the reference plane M0 increases. In other words, as the door 30 rotates from G4 = 90° to G9, relative to the housing 10, along the direction from the door sidewall 32 to the end of the door 30 opposite to the door sidewall 32, the door rear wall 33 extends away from the second sidewall and the retrieval opening.

[0887] (3.1) During the opening process of the door 30, the door 30 includes the process of opening from the fourth angle G4 = 90° to the sixth angle G6, which corresponds to the second axis trajectory segment.

[0888] As can be seen from the above description, during the process of the door 30 opening from the fourth angle G4 = 90° to the sixth angle G6, with the box body 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. and a second directional displacement parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door.

[0889] That is, during the process of the door 30 opening from the fourth angle G4 = 90° to the sixth angle G6, the displacement in the first direction The second direction displacement points to the outer front side (outward and forward side) of the housing 10. Pointing to the outer rear side (outward and rearward side) of housing 10.

[0890] As shown in Figure 33F, in the displacement coordinate system AOB, during the process of the door 30 opening from the fourth angle G4 = 90° to the sixth angle G6, the first direction displacement of the door 30 is... Located in the first quadrant (A > 0, B > 0). Displacement in the second direction. It is located in the fourth quadrant (A>0, B<0).

[0891] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0892] but, satisfy: At this moment, during the process of the door 30 opening from the fourth angle G4 = 90° to the sixth angle G6, in the displacement coordinate system AOB, the first translational displacement of the door 30 is... Therefore, it can be concluded that: relative to the box 10, the door 30 also has a tendency to translate along the positive direction of the A axis while rotating; that is, during the process of the door 30 opening from the fourth angle G4 = 90° to the sixth angle G6, the door 30 also has a tendency to translate outward while rotating relative to the box 10.

[0893] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0894] During the process of door 30 opening from the fourth angle G4 = 90° to the sixth angle G6 but, satisfy: >0. At this time, during the process of the door 30 opening from the fourth angle G4 = 90° to the sixth angle G6, in the displacement coordinate system AOB, the second translational displacement of the door 30 is... Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of the B-axis. That is, during the process of the door 30 opening from the fourth angle G4 = 90° to the sixth angle G6, the door 30, while rotating relative to the housing 10, also exhibits a tendency to translate forward.

[0895] Combining the translational trend of the door 30 along the A-axis, during the process of the door 30 opening from the fourth angle G4 = 90° to the sixth angle G6, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate outwards and forwards.

[0896] In some embodiments, During the process of opening the door 30 from the fourth angle G4 = 90° to the sixth angle G6, the door 30 mainly moves forward, while also having a slight tendency to move outward. This is to allow the door 30 to move out of the space defined by the cabinet 100, reducing the restriction on the opening angle of the door 30 by the cabinet 100, thereby allowing the door 30 to open to a greater maximum angle within the cabinet 100.

[0897] (3.2) During the opening process of the door 30, the door 30 includes the process of opening from the sixth angle G6 to the eighth angle G8, which corresponds to the trajectory segment of the third axis.

[0898] As can be seen from the above description, during the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, with the box body 10 as the reference, the door 30 also has a first direction displacement parallel to the rear wall 33 and pointing away from the side wall 32. The displacement is parallel to the side wall 32 of the door and points to the side away from the front wall 31 of the door.

[0899] That is, during the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, the displacement in the first direction The second direction displacement points to the outer front side (outward and forward side) of the housing 10. Pointing to the inner front side (inward and forward side) of housing 10.

[0900] As shown in Figure 33G, in the displacement coordinate system AOB, during the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, the first direction displacement of the door 30 is... Located in the first quadrant (A > 0, B > 0). Displacement in the second direction. It is located in the second quadrant (A < 0, B > 0).

[0901] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0902] During the process of the door 30 opening from the sixth angle G6 to the eighth angle G8 but, satisfy: At this moment, during the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, in the displacement coordinate system AOB, the door 30 also has a first translational displacement. Therefore, it can be concluded that: relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the negative A-axis. That is, during the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, the door 30, while rotating and opening relative to the housing 10, also exhibits a tendency to translate inward.

[0903] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is Second directional displacement The displacement along the B-axis is

[0904] but, satisfy: At this moment, during the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, in the displacement coordinate system AOB, the second translational displacement of the door 30 is... Therefore, it can be concluded that, relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of the B-axis. That is, during the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, the door 30, while rotating relative to the housing 10, also exhibits a tendency to translate forward.

[0905] In conjunction with the translational trend of the door 30 along the A-axis, as the door 30 opens from the sixth angle G6 to the eighth angle G8, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate inward and forward.

[0906] In summary, during the process of the door 30 opening from the sixth angle G6 to the eighth angle G8, the door 30 also tends to move inward and forward, so that the door 30 can move out of the space limited by the cabinet 100, reduce the restriction of the cabinet 100 on the opening angle of the door 30, and thus enable the door 30 to open to a greater maximum angle within the cabinet 100.

[0907] In some embodiments, During the opening process of door 30 from the sixth angle G6 to the eighth angle G8, door 30 primarily moves forward, with a slight tendency to move inward. This allows door 30 to move out of the space defined by the receiving cabinet 100, reducing the restriction on the opening angle of door 30 by the receiving cabinet 100, thereby increasing the maximum opening angle that door 30 can achieve within the receiving cabinet 100. Additionally, the slight inward movement reduces the obstruction of the retrieval opening by door 30.

[0908] (3.3) During the opening process of the door 30, the door 30 includes the process of opening from the eighth angle G8 to the ninth angle G9, which corresponds to the trajectory segment of the fourth axis.

[0909] As can be seen from the above description, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, with the box body 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. and a second directional displacement parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door.

[0910] That is, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the displacement in the first direction The second direction displacement points to the outer front side (outward and forward side) of the housing 10. Pointing to the outer rear side (outward and rearward side) of housing 10.

[0911] As shown in Figure 33H, in the displacement coordinate system AOB, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the first direction displacement of the door 30 is... Located in the first quadrant (A > 0, B > 0). Displacement in the second direction. It is located in the fourth quadrant (A>0, B<0).

[0912] For displacement in the first direction Second direction displacement Perform displacement decomposition on the A-axis. Displacement in the first direction. The displacement component on axis A is satisfy: Second directional displacement The displacement component on axis A is satisfy:

[0913] but, satisfy: It can be seen that during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, in the displacement coordinate system AOB, the first translational displacement of the door 30 is... Therefore, it can be concluded that, relative to the housing 10, the door 30 also exhibits a tendency to translate along the positive direction of the A-axis while rotating. That is, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the door 30 rotates and opens relative to the housing 10 while also exhibiting a tendency to translate outward.

[0914] For displacement in the first direction Second direction displacement Perform displacement decomposition on the B-axis. Displacement in the first direction. The displacement along the B-axis is satisfy: Second directional displacement The displacement along the B-axis is satisfy:

[0915] In some embodiments, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9... but, satisfy: At this time, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the door 30 also has a second translational displacement in the displacement coordinate system AOB. Therefore, it can be concluded that: relative to the housing 10, the door 30, while rotating, also exhibits a tendency to translate along the positive direction of the B-axis. That is, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the door 30, while rotating and opening relative to the housing 10, also exhibits a tendency to translate forward.

[0916] In conjunction with the translational trend of the door 30 along the A-axis, during the process of the door 30 opening from the eighth angle G8 to the ninth angle G9, the door 30 rotates and opens relative to the box 10 while also exhibiting a tendency to translate outwards and forwards.

[0917] In some embodiments, as the door 30 opens from the eighth angle G8 to the ninth angle G9, the door 30 tends to move outward and forward, so that when the refrigerator is not placed inside the storage cabinet 100, the door 30 can be opened to a larger angle while reducing the obstruction of the access opening by the door.

[0918] In some embodiments, During the process of opening the door 30 from the eighth angle G8 to the ninth angle G9, the door 30 mainly moves outward, while also having a slight tendency to move forward; so that when the refrigerator is not placed inside the storage cabinet 100, the door 30 can be opened to a larger angle while reducing the obstruction of the access opening by the door.

[0919] It should be noted that the above explanation mainly refers to some angles within the range of 0 to 90°, 90°, and 90° to G. 10 Some angles within the range are used as representatives to illustrate the overall movement trend of the door 30, but they can represent the movement trend within the corresponding range, and can illustrate that the hinge assembly with the above trajectory characteristics in some embodiments of this disclosure can enable the door 30 to translate along the A-axis and B-axis throughout the rotation opening process.

[0920] Figures 34 to 71 show related schematic diagrams of other implementation methods. In some embodiments, as shown in Figures 34 to 71, the door body 30 is at a third-direction angle G. F3 Open to the fourth direction angle G F4 During the process, the first axis 41 moves towards the side closer to the front wall 31 and the side wall 32, while the second axis 42 moves away from the front wall 31 and towards the side wall 32; here, G F3 <90°<G F4 .

[0921] When the door 30 is opened to 90°, the first shaft 41 moves relative to the guide portion 50 towards the side closer to the front wall 31 and the side wall 32 of the door. This arrangement ensures that the direction of movement of the first shaft 41 remains constant when the door 30 is opened to approximately 90°, resulting in smoother and more stable movement when the door 30 is opened to approximately 90°. Furthermore, it allows the door 30 to have an inward displacement around 90° when opened, reducing the limitation imposed by the cabinet 100 on the maximum opening angle of the door 30 placed there, and increasing the maximum opening angle of the door 30 within the cabinet 100, thus facilitating the retrieval and placement of items.

[0922] In some embodiments, when the door 30 is opened to 90°, the front wall 31 is located on the side of the first body sidewall that is close to the second body sidewall.

[0923] In some embodiments, when the door 30 is opened to 90°, the front wall 31 is located on the side of the first body side wall that is close to the second body side wall, and the distance between the front wall 31 and the first body side wall is greater than or equal to 4 mm.

[0924] In some embodiments, when the door 30 is opened to 90°, the front wall 31 of the door is flush with the side wall of the first body. Here, "flush" includes the case where the distance between the two planes of the front wall 31 and the side wall of the first body is less than or equal to 3 mm.

[0925] In some embodiments, G F4 -G F3 >0°. The above limits refer to the motion of the door 30 during the opening process, G F4 Greater than G F3 G F4 -G F3>0°, in the door body 30 by G F3 Open to G F4 During the process, the first axis 41 moves towards the side closer to the front wall 31 and the side wall 32 of the door, so that the door 30 has an inward displacement during the opening process at around 90°, so as to reduce the limitation of the space defined by the storage cabinet 100 on the maximum opening angle of the door 30, and enable the refrigerator door 30 placed in the storage cabinet 100 to open to a larger angle.

[0926] In some embodiments, G F4 -G F3 ≤20°. G F4 -G F3 When the angle is greater than 20°, the inward displacement of the door 30 within its opening range around 90° is too large, a...

Claims

1. A refrigerator, comprising: The enclosure includes a storage compartment, and a first side wall and a second side wall disposed opposite to each other, the storage compartment including an access port; The door body includes a front wall away from the box body when the door body is closed, and a side wall close to the first body side wall and connected to the front wall; A hinge assembly connects the housing and the door, allowing the door to rotate relative to the housing to open or close the access port; the hinge assembly includes: A hinge plate includes a connecting portion and an extension portion, the connecting portion being connected to the housing and close to the side wall of the first body, and the extension portion extending forward from the connecting portion; The first and second axes are disposed in the extension portion; A guide portion and a guide portion are provided on the door body and close to the side wall of the door; the first shaft cooperates with the guide portion and the second shaft cooperates with the guide portion; The guide portion extends from one end away from the door sidewall in a direction away from the door front wall and close to the door sidewall, and then extends in a direction close to both the door front wall and the door sidewall; Wherein, the point where the distance between the end of the guide part away from the side wall of the door and the front wall of the door is the smallest is recorded as the first guide boundary point Z1, the point where the distance between the end of the guide part close to the side wall of the door and the front wall of the door is the smallest is recorded as the second guide boundary point Z2, and the point where the distance between the guide part and the front wall of the door is the largest is recorded as the third guide boundary point Z3. In the orthographic projection of the plane containing the top wall of the housing, along a direction perpendicular to the door sidewall, the distance between the first guide boundary point Z1 and the third guide boundary point Z3 is denoted as the first guide side spacing E'. P1 The distance between the third guide boundary point Z3 and the second guide boundary point Z2 is denoted as the second guide side spacing E`. P2 ; Among them, E` P1 :E` P2 Greater than the ratio of the first guide side spacing; E` P1 :E` P2 Less than the ratio of the second guide side spacing; During the process of opening the door from the closed state, the first axis moves relative to the guide portion, and the second axis moves relative to the guide portion.

2. The refrigerator according to claim 1, wherein, The first guide side spacing ratio is 0.6, 0.8, or 1; The second guide side spacing ratio is 1.15, 1.2, or 1.25; E` P1 It is greater than the reference value for the first guide side spacing; the reference value for the first guide side spacing is 8.5mm or 9mm; E` P1 It is less than the reference value for the second guide side spacing; the reference value for the second guide side spacing is 10mm, 12mm or 15mm.

3. The refrigerator according to claim 1, wherein, The straight line containing the first guiding boundary point Z1 and the third guiding boundary point Z3 is denoted as the straight line Z1Z3, and the straight line containing the third guiding boundary point Z3 and the second guiding boundary point Z2 is denoted as the straight line Z3Z2. The angle between the straight line Z1Z3 and the front wall of the door is denoted as the first guiding angle Ω. P1 The angle between the straight line Z3Z2 and the front wall of the door is denoted as the second guiding angle Ω. P2 ; Ω P1 Ω P2 It is greater than the first guide angle ratio; the first guide angle ratio is 0.4, 0.5, 0.6, 0.7 or 0.8; Ω P1 Ω P2 It is less than the second leading angle ratio; the second leading angle ratio is 0.9 or 0.

94.

4. The refrigerator according to claim 3, wherein, The angle between the lines Z1Z3 and Z3Z2 is denoted as the guiding angle Ω. P ; Ω P Greater than the first guide angle reference value; the first guide angle reference value is 50°, 52° or 54°; Ω P Less than the second guide angle reference value; the second guide angle reference value is 56°, 58° or 60°.

5. The refrigerator according to any one of claims 1 to 4, wherein, The guide portion extends from one end away from the side wall of the door in a direction away from the front wall of the door and close to the side wall of the door, and then extends in a direction close to both the front wall of the door and the side wall of the door. Wherein, the point where the distance between the end of the guide part away from the side wall of the door and the front wall of the door is the smallest is recorded as the first guide boundary point H1, the point where the distance between the end of the guide part close to the side wall of the door and the front wall of the door is the smallest is recorded as the second guide boundary point H2, and the point where the distance between the guide part and the front wall of the door is the largest is recorded as the third guide boundary point H3. In the orthographic projection of the plane containing the top wall of the enclosure, along a direction perpendicular to the door sidewall, the distance between the first guide boundary point H1 and the third guide boundary point H3 is denoted as the first guide side spacing E'. Q1 The distance between the third guide boundary point H3 and the second guide boundary point H2 is denoted as the second guide side spacing E`. Q2 ; E` Q1 The distance between the guide sides is greater than the reference value for the first guide side spacing; the reference value for the first guide side spacing is 24mm, 26mm, or 27mm. E` Q1 Less than the reference value for the second guide side spacing; the reference value for the second guide side spacing is 29mm, 30mm or 32mm; E` Q2 The value is greater than the endpoint value of the first guide side spacing; the endpoint value of the first guide side spacing is 6.5mm, 7mm or 9mm; E` Q2 Less than the endpoint value of the second guide side spacing; the endpoint value of the second guide side spacing is 11mm, 13mm or 15mm.

6. The refrigerator according to claim 1 or 4, wherein, The line passing through the third guiding boundary point Z3 and perpendicular to the lines Z1 and Z2 is denoted as the first line χ1. The first line χ1 intersects the lines Z1 and Z2 at the first foot of the perpendicular Z. C ; line segment Z1Z C The length is denoted as |Z1Z C |, line segment Z C The length of Z2 is denoted as |Z C Z2|; |Z1Z C |and|Z C The ratio of Z2| is greater than or equal to the first guide length ratio; the first guide length ratio is 0, 0.1, or 0.15; |Z1Z C |and|Z C The ratio of Z2| is less than the second guide length ratio; the second guide length ratio is 0.2, 0.3 or 0.

4.

7. The refrigerator according to claim 5, wherein, The line passing through the third guiding boundary point H3 and perpendicular to the line H1H2 is denoted as the second line χ2. The second line χ2 intersects the line H1H2 at the second foot of the perpendicular H. C ; line segment H1H C The length is denoted as |H1H C |, line segment H C The length of H2 is denoted as |H C H2|; |H1H C |and|H C The ratio of H2| is greater than the first guide length ratio; the first guide length ratio is 9, 10 or 11; |H1H C |and|H C The ratio of H2| is less than the second guide length ratio; the second guide length ratio is 12, 13 or 15.

8. The refrigerator according to claim 1, 4, or 7, wherein, The radius of the first axis is denoted as the first radius R1, the radius of the second axis is denoted as the second radius R2, and the thickness of the door body is denoted as π; Where R1: π belongs to any value between 0.03 and 0.1, and R2: π belongs to any value between 0.03 and 0.

1.

9. The refrigerator according to claim 1, 4, or 7, wherein, The center axis of the first axis is denoted as the first center axis P, and the center axis of the second axis is denoted as the second center axis Q; In the orthographic projection of the plane containing the top wall of the box, the line segment where the first central axis P and the second central axis Q lie is denoted as the axis line segment PQ, and the midpoint of the axis line segment PQ is denoted as the axis center point I; During the process of the door opening from the closed state to the eighth angle G8, the first central axis P moves relative to the guide part, the second central axis Q moves relative to the guide part, and the central point I of the axis moves relative to the door body first to the side closer to the door side wall and away from the door front wall to the reversing midpoint I', and then moves to the side closer to the door side wall and the door front wall. When the central point I of the axis moves relative to the door body to the reversing midpoint I', the door body opens to the reversing angle G', where the reversing angle G' is an acute angle and the eighth angle G8 is an obtuse angle.

10. A refrigerator, comprising: The enclosure includes a storage compartment, and a first side wall and a second side wall disposed opposite to each other, the storage compartment including an access port; The door body includes a front wall away from the box body when the door body is closed, and a side wall close to the first body side wall and connected to the front wall; A hinge assembly connects the housing and the door, allowing the door to rotate relative to the housing to open or close the access port; the hinge assembly includes: A hinge plate includes a connecting portion and an extension portion, the connecting portion being connected to the housing and close to the side wall of the first body, and the extension portion extending forward from the connecting portion; The first and second axes are disposed in the extension portion; A guide portion and a guide portion are provided on the door body and close to the side wall of the door; the first shaft cooperates with the guide portion and the second shaft cooperates with the guide portion; The guide portion extends from one end away from the door sidewall in a direction away from the door front wall and close to the door sidewall, and then extends in a direction close to both the door front wall and the door sidewall; Wherein, the point where the distance between the end of the guide part away from the side wall of the door and the front wall of the door is the smallest is recorded as the first guide boundary point Z1, the point where the distance between the end of the guide part close to the side wall of the door and the front wall of the door is the smallest is recorded as the second guide boundary point Z2, and the point where the distance between the guide part and the front wall of the door is the largest is recorded as the third guide boundary point Z3. In the orthographic projection of the plane containing the top wall of the housing, along a direction perpendicular to the side wall of the door, the distance between the first guide boundary point Z1 and the third guide boundary point Z3 is denoted as the first guide side spacing E'. P1 The distance between the third guide boundary point Z3 and the second guide boundary point Z2 is denoted as the second guide side spacing E`. P2 ; Among them, E` P1 :E` P2 Greater than the ratio of the first guide side spacing; E` P1 :E` P2 Less than the ratio of the second guide side spacing; During the process of the door opening from the closed state, the first shaft moves relative to the guide portion toward the side wall of the door, and the second shaft moves relative to the guide portion toward the side wall of the door.

11. The refrigerator according to claim 10, wherein, The first guide side spacing ratio is 0.6, 0.8, or 1; The second guide side spacing ratio is 1.15, 1.2, or 1.25; E` P1 It is greater than the reference value for the first guide side spacing; the reference value for the first guide side spacing is 8.5mm or 9mm; E` P1 It is less than the reference value for the second guide side spacing; the reference value for the second guide side spacing is 10mm, 12mm or 15mm.

12. The refrigerator according to claim 10, wherein, The straight line containing the first guiding boundary point Z1 and the third guiding boundary point Z3 is denoted as the straight line Z1Z3, and the straight line containing the third guiding boundary point Z3 and the second guiding boundary point Z2 is denoted as the straight line Z3Z2. The angle between the straight line Z1Z3 and the front wall of the door is denoted as the first guiding angle Ω. P1 The angle between the straight line Z3Z2 and the front wall of the door is denoted as the second guiding angle Ω. P2 ; Ω P1 Ω P2 It is greater than the first guide angle ratio; the first guide angle ratio is 0.4, 0.5, 0.6, 0.7 or 0.8; Ω P1 Ω P2 It is less than the second leading angle ratio; the second leading angle ratio is 0.9 or 0.

94.

13. The refrigerator according to claim 12, wherein, The angle between the lines Z1Z3 and Z3Z2 is denoted as the guiding angle Ω. P ; Ω P Greater than the first guide angle reference value; the first guide angle reference value is 50°, 52°, or 54°; Ω P Less than the second guide angle reference value; the second guide angle reference value is 56°, 58°, or 60°.

14. The refrigerator according to any one of claims 10 to 13, wherein, The guide portion extends from one end away from the side wall of the door in a direction away from the front wall of the door and close to the side wall of the door, and then extends in a direction close to both the front wall of the door and the side wall of the door. Wherein, the point where the distance between the end of the guide part away from the side wall of the door and the front wall of the door is the smallest is recorded as the first guide boundary point H1, the point where the distance between the end of the guide part close to the side wall of the door and the front wall of the door is the smallest is recorded as the second guide boundary point H2, and the point where the distance between the guide part and the front wall of the door is the largest is recorded as the third guide boundary point H3. In the orthographic projection of the plane containing the top wall of the enclosure, along a direction perpendicular to the door sidewall, the distance between the first guide boundary point H1 and the third guide boundary point H3 is denoted as the first guide side spacing E'. Q1 The distance between the third guide boundary point H3 and the second guide boundary point H2 is denoted as the second guide side spacing E`. Q2 ; E` Q1 The distance between the guide sides is greater than the reference value for the first guide side spacing; the reference value for the first guide side spacing is 24mm, 26mm, or 27mm. E` Q1 Less than the reference value for the second guide side spacing; the reference value for the second guide side spacing is 29mm, 30mm or 32mm; E` Q2 The value is greater than the endpoint value of the first guide side spacing; the endpoint value of the first guide side spacing is 6.5mm, 7mm or 9mm; E` Q2 Less than the endpoint value of the second guide side spacing; the endpoint value of the second guide side spacing is 11mm, 13mm or 15mm.

15. The refrigerator according to claim 14, wherein, The line passing through the third guiding boundary point Z3 and perpendicular to the lines Z1 and Z2 is denoted as the first line χ1. The first line χ1 intersects the lines Z1 and Z2 at the first foot of the perpendicular Z. C ; line segment Z1Z C The length is denoted as |Z1Z C |, line segment Z C The length of Z2 is denoted as |Z C Z2|; |Z1Z C |and|Z C The ratio of Z2| is greater than or equal to the first guide length ratio; the first guide length ratio is 0, 0.1, or 0.15; |Z1Z C |and|Z C The ratio of Z2| is less than the second guide length ratio; the second guide length ratio is 0.2, 0.3 or 0.

4.

16. The refrigerator according to claim 14, wherein, The line passing through the third guiding boundary point H3 and perpendicular to the line H1H2 is denoted as the second line χ2. The second line χ2 intersects the line H1H2 at the second foot of the perpendicular H. C ; line segment H1H C The length is denoted as |H1H C |, line segment H C The length of H2 is denoted as |H C H2|; |H1H C |and|H C The ratio of H2| is greater than the first guide length ratio; the first guide length ratio is 9, 10 or 11; |H1H C |and|H C The ratio of H2| is less than the second guide length ratio; the second guide length ratio is 12, 13 or 15.

17. The refrigerator according to claim 10, 13, or 16, wherein, The radius of the first axis is denoted as the first radius R1, the radius of the second axis is denoted as the second radius R2, and the thickness of the door body is denoted as π; Where R1: π belongs to any value between 0.03 and 0.1, and R2: π belongs to any value between 0.03 and 0.

1.

18. The refrigerator according to claim 10, 13, or 16, wherein, The center axis of the first axis is denoted as the first center axis P, and the center axis of the second axis is denoted as the second center axis Q; In the orthographic projection of the plane containing the top wall of the box, the line segment where the first central axis P and the second central axis Q lie is denoted as the axis line segment PQ, and the midpoint of the axis line segment PQ is denoted as the axis center point I; During the process of the door opening from the closed state to the eighth angle G8, the first central axis P moves relative to the guide part, the second central axis Q moves relative to the guide part, and the central point I of the axis moves relative to the door body first to the side closer to the door side wall and away from the door front wall to the reversing midpoint I', and then moves to the side closer to the door side wall and the door front wall. When the central point I of the axis moves relative to the door body to the reversing midpoint I', the door body opens to the reversing angle G', where the reversing angle G' is an acute angle and the eighth angle G8 is an obtuse angle.

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