Refrigerator

Abstract

The utility model discloses a refrigerator. The refrigerator comprises a refrigerator body, a door body, a first hinge piece arranged on the refrigerator body and a second hinge piece arranged on the door body. The first hinge piece comprises a first shaft and a guide part; the second hinge piece comprises a second shaft matched with the guide part and a guide part matched with the first shaft; the guide track line S is a circular arc and protrudes towards one side far away from the plane where the pick-and-place opening is located; the central axis of the first shaft is marked as a first central axis Q; the circle center of the arc-shaped guide trajectory S is marked as a guide circle center O; the maximum distance point between the guide trajectory S and the plane where the pick-and-place opening is located is marked as a first guide point P1; in the projection of the plane where the top wall of the box body is located and in the direction perpendicular to the plane where the pick-and-place opening is located, the distance between the first center shaft Q and the guide circle center O is recorded as QO1, and the distance between the first center shaft Q and the first guide point P1 is recorded as QP11; 3 < = QO1: QP11; according to the refrigerator, the opening angle of the door body in the cabinet can be increased.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a refrigerator. Background Technology

[0002] Built-in refrigerators are typically integrated entirely into custom-made cabinets. To ensure a seamless fit, the gaps between the refrigerator's outer wall and the cabinet's inner wall are usually very small. However, when the refrigerator door is opened, the vertical edge of the hinged door can easily hit the inner wall of the cabinet. Due to space constraints within the cabinet, to ensure the door opens effectively, the corners of the door must not extend excessively beyond the cabinet's dimensions during opening. To further prevent this, the door needs to move inward a certain distance when opening. Most current built-in refrigerators utilize shafts or grooves on the door or cabinet body to specifically control the amount of door displacement along the width direction (inside and outside) of the cabinet, thus controlling the corners from extending beyond the cabinet's dimensions and achieving a truly integrated design.

[0003] Furthermore, when the refrigerator door is closed, the front wall of the door remains flush with the plane of the cabinet opening to achieve concealed installation. However, when the door is open, the maximum angle it can open is limited by the cabinet. As the door opening angle increases, the front wall of the door approaches the end of the adjacent cabinet closest to its opening; when the front wall of the door contacts the end of the adjacent cabinet closest to its opening, the door is limited by the cabinet and opens to its limit. This results in a limitation on the maximum opening angle of the refrigerator door embedded in the cabinet. Controlling the amount of displacement of the door along the width of the cabinet to reduce the limitation on the maximum opening angle of the door placed within it has limited effect. Utility Model Content

[0004] This application provides a refrigerator that effectively controls the displacement of the door relative to the cabinet in the direction perpendicular to the plane where the retrieval opening is located by limiting the relationship between the inflection point of the first axis and the guide trajectory line and the center of the circle. This controls the amount of movement of the door relative to the cabinet in the width direction and the amount of movement in the front-back direction, thereby reducing the restriction of the cabinet space on the door movement and enabling the door to open to a larger angle.

[0005] Firstly, a refrigerator will be provided, including:

[0006] The housing defines multiple receiving cavities with openings for taking out and putting in; the housing has a first body sidewall and a second body sidewall disposed opposite to each other;

[0007] A door, connected to the housing, is used to close or open the receiving cavity; the door has:

[0008] The front wall of the door is away from the box when the door is closed;

[0009] The door sidewall is connected to the front wall of the door and is located on the side of the door body away from the second body sidewall when it is in the closed state;

[0010] A hinge assembly connects the door to the housing, allowing the door to rotate relative to the housing; the hinge assembly includes:

[0011] A first hinge element is disposed on the housing and close to the side wall of the first body; the first hinge element includes:

[0012] A hinge plate, which is connected to the housing;

[0013] A first shaft and a guide portion are disposed on the hinge plate;

[0014] A second hinge element is disposed on the door body; the second hinge element includes:

[0015] The second shaft cooperates with the guide portion;

[0016] A guide section that mates with the first shaft;

[0017] The movement trajectory of the central axis of the second axis relative to the guide part is denoted as the guide trajectory line S. The guide trajectory line S is an arc and protrudes to the side away from the plane where the pick-up and put-out port is located.

[0018] The central axis of the first axis is denoted as the first central axis Q; the center of the arc-shaped guide trajectory line S is denoted as the guide center O; the point at which the guide trajectory line S is at the maximum distance from the plane where the pick-up and drop-off port is located is denoted as the first guide point P1;

[0019] In the projection of the plane containing the top wall of the box, in the direction perpendicular to the plane containing the loading and unloading port, the distance between the first central axis Q and the guide center O is denoted as |QO|1, and the distance between the first central axis Q and the first guide point P1 is denoted as |QP1|1.

[0020] Where 3≤|QO|1:|QP1|1。

[0021] In the above technical solution, when |QO|1:|QP1|1<3, |QO|1:|QP1|1 is too small. When the second axis moves to the maximum distance between the guide part and the plane where the pick-up and put-away port is located, the distance between the second axis and the first axis in the direction perpendicular to the plane where the pick-up and put-away port is located is too large. This results in the door body being displaced too much relative to the cabinet body in the direction perpendicular to the plane where the pick-up and put-away port is located. This causes an imbalance between the amount of movement of the door body relative to the cabinet body in the width direction and the amount of movement in the front-back direction. This cannot effectively reduce the restriction on the movement of the door body by the space limited by the cabinet.

[0022] In this application, the setting of 3≤|QO|1:|QP1|1 ensures that when the second axis moves to the maximum distance between the guide and the plane where the pick-up and put-away port is located, the second axis moves closer to the first axis in the direction perpendicular to the plane where the pick-up and put-away port is located. This effectively controls the amount of displacement of the door relative to the cabinet in the direction perpendicular to the plane where the pick-up and put-away port is located, thereby controlling the amount of movement of the door relative to the cabinet in the width direction and in the front-back direction. This reduces the restriction of the cabinet's space on the door's movement, allowing the door to open to a larger angle.

[0023] In some embodiments, during the opening of the door, when the door opening angle is G1', the distance between the central axis of the second axis and the side wall of the first body is the smallest; at this time, the central axis of the second axis is located at the first extreme guide point P1' of the guide trajectory line S;

[0024] When the door opens at an angle of G2', the distance between the central axis of the second axis and the side wall of the first body is at its maximum; at this time, the central axis of the second axis is located at the second limit guide point P2' of the guide trajectory line S.

[0025] Where 20°≤∠P1`OP2`≤30°.

[0026] In the above technical solution, when ∠P1`OP2`<20°, ∠P1`OP2` is too small, the length of the guide trajectory line is too small, the length of the guide part is too small, the number of relative frictions when the second shaft moves relative to the guide part is large, which increases the wear of the second shaft and the guide part and reduces the life of the hinge assembly.

[0027] When 30° < ∠P1`OP2`, ∠P1`OP2` is too large, the length of the guide trajectory line is too large, the length of the guide part is too large, and the guide part occupies a large space of the hinge plate, which leads to a reduction in the strength of the hinge plate and also to a reduction in the strength of the guide part, thus reducing the service life of the hinge assembly.

[0028] The setting of 20°≤∠P1`OP2`≤30° limits the length of the guide trajectory line (guide part). On the one hand, it reduces the number of relative frictions between the second axis and the guide part, thereby reducing the wear of the second axis and the guide part; on the other hand, it reduces the space occupied by the guide part on the hinge plate, avoiding the reduction of the hinge plate's strength and ensuring the service life of the hinge assembly.

[0029] In some embodiments, 1.6 ≤ ∠P1`OP1 : ∠P2`OP1 ≤ 2.

[0030] In the above technical solution, when ∠P1`OP1:∠P2`OP1 < 1.6, ∠P1`OP1:∠P2`OP1 is too small, the first stroke is too small, and the appropriate first stroke relative to the cabinet in the width direction and the front-back direction is too small, which cannot effectively reduce the restriction on the door's movement by the space limited by the cabinet. In addition, the ratio of the first stroke to the second stroke is too small, and the distribution of the first stroke and the second stroke relative to the cabinet during movement is unbalanced, which cannot meet the displacement requirements of each stage of door opening.

[0031] When 2 < ∠P1`OP1 : ∠P2`OP1, ∠P1`OP1 : ∠P2`OP1 is too large, resulting in an excessively large first stroke. This leads to an excessively large distance between the second axis and the first axis in the direction perpendicular to the plane containing the access opening. Consequently, at least one segment of the door's movement relative to the cabinet experiences excessive displacement in the direction perpendicular to the access opening. This results in an imbalance between the door's width-direction movement and its front-to-back-direction movement relative to the cabinet, failing to effectively reduce the restriction on door movement imposed by the cabinet's limited space. Furthermore, the ratio of the first stroke to the second stroke is too large, causing an imbalance in the distribution of the first and second strokes during the door's movement relative to the cabinet, which cannot meet the displacement requirements at each stage of the door's opening.

[0032] In this application, the setting of 1.6≤∠P1`OP1:∠P2`OP1≤2 ensures that during the first stroke, the amount of movement of the door relative to the cabinet in the width direction and the amount of movement in the front-to-back direction are appropriate in the direction perpendicular to the plane where the pick-up and drop-off opening is located, and the stroke appropriately meets the door's movement requirements, thereby more efficiently reducing the impact of the cabinet's confined space on the door's movement. Furthermore, the ratio of the first stroke to the second stroke is limited to a suitable range to control the relative amounts of the first and second strokes of the door relative to the cabinet during movement, thus meeting the displacement requirements of each stage of door opening.

[0033] In some embodiments, the first shaft is located on the side of the guide portion away from the first body sidewall, and the second shaft is located on the side of the guide portion closer to the front wall of the door.

[0034] The above technical solution defines the relative positions of the first shaft and the guide portion and the relative positions of the second shaft and the guide portion, making the structure of the hinge assembly more compact and ensuring its strength.

[0035] In some embodiments, the movement trajectory of the central axis of the first axis relative to the guide portion is denoted as guide trajectory line F. The guide trajectory line F extends from one end away from the door sidewall to the side closer to the door sidewall and away from the door front wall, and then extends to the side closer to both the door sidewall and the door front wall.

[0036] In the above technical solution, the extension trend of the trajectory of the guide part guiding the central axis of the first axis to move is defined. The extension trend of the guide trajectory line is divided into two segments, and its trajectory extension trend is simple, which improves the smoothness of the movement of the first axis relative to the guide part.

[0037] In some embodiments, the point where the guide trajectory line F is furthest from the front wall of the door is denoted as the third guide point H;

[0038] In a plane projection parallel to the top wall of the enclosure, along a direction perpendicular to the side wall of the door, the distance between the central axis of the second axis and the third guide point H is denoted as |PH|2; where 0mm≤|PH|2≤5mm.

[0039] In the above technical solution, when 5mm < |PH|2, |PH|2 is too large. In the direction perpendicular to the door sidewall, the distance between the second axis and the third guide point H, which is the largest distance from the front wall of the door, is too large. During the movement of the door relative to the box, when the first central axis Q moves to the third guide point H, the distance between the second central axis and the first central axis in the direction perpendicular to the door sidewall is too large, and the angle of inclination of the straight line containing the first central axis and the second central axis relative to the plane containing the pick-up and put-out opening is too large. At this time, the stability of the door relative to the box is poor.

[0040] In this application, the setting of 0mm≤|PH|2≤5mm ensures that, in the direction perpendicular to the door sidewall, the second axis is close to the third guide point H, which is the furthest from the front wall of the door, on the guide trajectory line. During the movement of the door relative to the box, when the first central axis Q moves to the third guide point H, the second central axis is close to the first central axis in the direction perpendicular to the door sidewall, effectively ensuring the stability of the door's movement relative to the box.

[0041] In some embodiments, the point on the guide trajectory line F that is furthest from the door sidewall and has the smallest distance from the door frontwall is denoted as the first guide point K;

[0042] In a plane projection parallel to the top wall of the box, the distance between the central axis of the second axis and the first guide point K along the direction perpendicular to the front wall of the door is denoted as |PK|1; where 0mm≤|PK|1≤3mm.

[0043] In the above technical solution, when 3mm < |PK|1, |PK|1 is too large. In the direction perpendicular to the front wall of the door, the distance between the second central axis P and the first guide point K, which is the largest distance from the side wall of the door, is too large. During the movement of the door relative to the box, when the first central axis Q is located at the first guide point K, the distance between the second central axis and the first central axis in the direction perpendicular to the front wall of the door is too large, and the angle of inclination of the straight line containing the first central axis and the second central axis relative to the plane containing the pick-up and put-out opening is too large. At this time, the stability of the door relative to the box is poor.

[0044] In this application, the setting of 0mm≤|PK|1≤3mm ensures that, in the direction perpendicular to the front wall of the door, the second axis is close to the first guide point K, which is the furthest from the side wall of the door, on the guide trajectory line. During the movement of the door relative to the box, when the door is closed, the first central axis Q is located at the first guide point K, and in the direction perpendicular to the side wall of the door, the second central axis P is close to the first central axis, effectively ensuring the stability of the door's movement relative to the box.

[0045] In some embodiments, the guide portion includes a first guide end away from the door sidewall and a second guide end close to the door sidewall;

[0046] During the process of the door opening from G0 to G5, the first guide end gradually moves away from the first axis, and the second guide end gradually moves closer to the first axis.

[0047] During the process of the door opening from G0 to G1, the first guide end moves away from the side wall of the first body and the plane where the pick-up and put-out opening is located, and the second guide end moves away from the side wall of the first body and closer to the plane where the pick-up and put-out opening is located.

[0048] During the process of the door opening from G1 to G2, the first guide end moves towards the side wall of the first body and away from the plane where the pick-up and put-out port is located, and the second guide end moves away from the side wall of the first body and towards the plane where the pick-up and put-out port is located.

[0049] During the process of the door opening from G2 to G5, the first guide end moves towards the side wall of the first body and away from the plane where the pick-up and put-out port is located, and the second guide end moves away from the side wall of the first body and the plane where the pick-up and put-out port is located; wherein, G0 < G2 < G5.

[0050] In the above technical solution, the movement of the first and second guide ends of the guide part relative to the cabinet is divided into three stages. The different relative movement trends in different stages guide the movement of the door, so as to guide the door to move in the width direction and front-back direction of the cabinet, thereby reducing the restriction of the cabinet on the door and increasing the maximum angle that the door can be opened in the cabinet.

[0051] In some embodiments, during the process of the door opening from G0 to G1, the second axis moves relative to the guide portion to the side away from the plane where the first body sidewall and the pick-up / place-out opening are located;

[0052] During the process of the door opening from G1 to G2, the second shaft moves relative to the guide portion away from the side wall of the first body and closer to the plane where the pick-up and put-out opening is located.

[0053] During the process of the door opening from G2 to G3, the second shaft moves relative to the guide portion towards the side wall of the first body and away from the plane where the pick-up and put-out opening is located.

[0054] During the process of the door opening from G3 to G4, the second shaft moves relative to the guide portion towards the side closer to the plane where the first body sidewall and the pick-and-place opening are located;

[0055] During the process of the door opening from G4 to G5, the second axis moves relative to the guide portion to the side away from the plane where the first body sidewall and the pick-up / place-out port are located; wherein, G0 < G1 < G2 < G3 < G4 < G5.

[0056] In the above technical solution, the movement direction of the second axis relative to the guide part relative to the movement direction of the cabinet is divided into five stages. The different relative movement trends in different stages guide the movement of the door, so as to guide the door to move in the width direction and front and back direction of the cabinet, so as to reduce the restriction of the cabinet on the door and increase the maximum angle that the door can be opened in the cabinet.

[0057] Secondly, refrigerators will be provided, including:

[0058] The housing defines multiple receiving cavities with openings for taking out and putting in; the housing has a first body sidewall and a second body sidewall disposed opposite to each other;

[0059] A door, connected to the housing, is used to close or open the receiving cavity; the door has:

[0060] The front wall of the door is away from the box when the door is closed;

[0061] The door sidewall is connected to the front wall of the door and is located on the side of the door body away from the second body sidewall when it is in the closed state;

[0062] A hinge assembly connects the door to the housing, allowing the door to rotate relative to the housing; the hinge assembly includes:

[0063] A first hinge element is disposed on the housing and close to the side wall of the first body; the first hinge element includes:

[0064] A hinge plate, which is connected to the housing;

[0065] A first shaft and a guide portion are disposed on the hinge plate;

[0066] A second hinge element is disposed on the door body; the second hinge element includes:

[0067] The second shaft cooperates with the guide portion;

[0068] A guide section that mates with the first shaft;

[0069] The movement trajectory of the central axis of the second axis relative to the guide part is denoted as the guide trajectory line S. The guide trajectory line S is an arc and protrudes to the side away from the plane where the pick-up and put-out port is located.

[0070] The central axis of the first axis is denoted as the first central axis Q; the center of the arc-shaped guide trajectory line S is denoted as the guide center O; the point at which the guide trajectory line S is at the maximum distance from the plane where the pick-up and drop-off port is located is denoted as the first guide point P1;

[0071] In the projection of the plane containing the top wall of the box, the distance between the first central axis Q and the first guide point P1 in the direction perpendicular to the plane containing the loading and unloading port is denoted as |QP1|1.

[0072] Where 0mm≤|QP1|1≤4mm.

[0073] In the above technical solution, when 4mm < |QP1|1, when the second axis moves to the maximum distance between the guide part and the plane where the pick-up and put-out opening is located, the distance between the second axis and the first axis in the direction perpendicular to the plane where the pick-up and put-out opening is located is too large. This results in the door body being displaced too much relative to the cabinet body in the direction perpendicular to the plane where the pick-up and put-out opening is located. This causes an imbalance between the amount of movement of the door body relative to the cabinet body in the width direction and the amount of movement in the front-back direction, and cannot effectively reduce the restriction of the cabinet space on the movement of the door body.

[0074] In this application, the setting of 0mm≤|QP1|1≤4mm ensures that when the second axis moves to the maximum distance between the guide part and the plane where the pick-up and drop-off port is located, the second axis moves closer to the first axis in the direction perpendicular to the plane where the pick-up and drop-off port is located. This effectively controls the amount of displacement of the door relative to the cabinet in the direction perpendicular to the plane where the pick-up and drop-off port is located, thereby controlling the amount of movement of the door relative to the cabinet in the width direction and in the front-back direction. This reduces the restriction of the cabinet's space on the door's movement, allowing the door to open to a larger angle. Attached Figure Description

[0075] Figure 1 A schematic diagram of the overall structure of a refrigerator according to some embodiments is shown;

[0076] Figure 2 A schematic diagram showing the relative positions of the hinge assemblies of a refrigerator according to some embodiments is shown;

[0077] Figure 3 A schematic diagram of the structure of a first hinge member according to some embodiments is shown;

[0078] Figure 4 A structural schematic diagram of the first hinge element according to some embodiments is shown from another perspective.

[0079] Figure 5 An exemplary top view of a first hinge member connected to a housing, according to some embodiments, is shown;

[0080] Figure 6 An exemplary top view of a second hinge member located on a door body according to some embodiments is shown;

[0081] Figure 7 An exemplary schematic diagram of a refrigerator with its door open at an angle of G0, according to some embodiments, is shown.

[0082] Figure 8 An exemplary schematic diagram of a refrigerator with its door open at angle G1 according to some embodiments is shown.

[0083] Figure 9 An exemplary schematic diagram of a refrigerator with its door open at angle G2 according to some embodiments is shown.

[0084] Figure 10 An exemplary schematic diagram of a refrigerator with its door open at angle G3 according to some embodiments is shown.

[0085] Figure 11 An exemplary schematic diagram of a refrigerator with its door open at an angle of G4, according to some embodiments, is shown.

[0086] Figure 12 An exemplary schematic diagram of a refrigerator with its door open at an angle of G5, according to some embodiments, is shown.

[0087] Figure 13 An exemplary schematic diagram of the movement of a second hinge member relative to a first hinge member during the opening of a refrigerator door from G0 to G5 according to some embodiments is shown.

[0088] Figure 14 An exemplary diagram illustrates the movement of the second axis relative to the guide portion and the guide portion relative to the first axis during the process of opening the refrigerator door from G0 to G5 according to some embodiments;

[0089] Figure 15 An exemplary diagram illustrates the motion of the center point relative to the door of a refrigerator as the door opens from G0 to G5 according to some embodiments;

[0090] Figure 16 An exemplary diagram illustrates the movement of the second axis relative to the guide portion and the guide portion relative to the first axis during the process of opening the refrigerator door from G0 to G1 according to some embodiments;

[0091] Figure 17An exemplary diagram illustrates the movement of the second axis relative to the guide portion and the guide portion relative to the first axis during the process of opening the refrigerator door from G1 to G2 according to some embodiments;

[0092] Figure 18 An exemplary diagram illustrates the movement of the second axis relative to the guide portion and the guide portion relative to the first axis during the process of opening the refrigerator door from G3 to G3 according to some embodiments;

[0093] Figure 19 An exemplary diagram illustrates the movement of the second axis relative to the guide portion and the guide portion relative to the first axis during the process of opening the refrigerator door from G3 to G4 according to some embodiments;

[0094] Figure 20 An exemplary diagram illustrates the movement of the second axis relative to the guide portion and the guide portion relative to the first axis during the opening of the refrigerator door from G4 to G5 according to some embodiments.

[0095] In the above figures:

[0096] Refrigerator 100; Cabinet 1; Cabinet 2; Door 3; Front door wall 31; Rear door wall 32; Side door wall 33; First side edge W; Second side edge N; Hinge plate 4; Connecting part 41; Extension part 42; First shaft 5; Second shaft 6; Guide part 7; Guide part 8. Detailed Implementation

[0097] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0098] In the description of this utility model, 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 utility model 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 utility model.

[0099] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0100] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0101] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0102] This application provides a refrigerator 100, with reference to... Figures 1-20 The refrigerator 100 includes a cabinet 1 having a receiving cavity, a door 3 connected to the cabinet 1 for opening and closing the receiving cavity, and a refrigeration device for supplying cold air to the receiving cavity. The cabinet 1 includes an inner liner defining the receiving cavity, an outer shell connected to the outside of the inner liner to form the appearance of the refrigerator 100, and a heat insulation layer disposed between the inner liner and the outer shell to insulate the receiving cavity.

[0103] Among them, see Figure 1 The direction from the bottom wall to the top wall of box 1 is the height direction. The direction extending from the intersection of the top wall and the rear wall of box 1 is the width direction. The direction orthogonal to both the height and width directions is the front-back direction.

[0104] In some embodiments of this application, the housing 1 defines a plurality of receiving cavities. A retrieval opening is formed at the front end of each receiving cavity for placing or removing items, allowing the user to place food into or remove food from the receiving cavity. A rotatable door 3 is provided on the housing 1 to open or close the retrieval opening of the receiving cavity. For example, the door 3 is rotatably connected to the housing 1 via upper and lower hinge assemblies. In the front-rear direction, the retrieval opening of the housing 1 is located at the front relative to the wall surface of the housing 1 opposite to the retrieval opening (the rear wall of the housing 1).

[0105] In some embodiments of this application, the multiple cavities may include a refrigerator compartment and a freezer compartment to form cavities with different temperatures for storing different items.

[0106] In some embodiments of this application, the housing 1 includes a first sidewall (i.e., one of the left and right sidewalls of the housing 1) and a second sidewall (i.e., the other of the left and right sidewalls of the housing 1) disposed opposite each other along its width direction. A hinge assembly is disposed on the housing 1 and close to the first sidewall to connect the door 3 close to the first sidewall to the housing 1, so that the door 3 can rotate relative to the housing 1 to open or close the loading / unloading port.

[0107] The door 3 has a front wall 31 that is away from the housing 1 when the door 3 is closed, a rear wall 32 that is opposite to the front wall 31, and a side wall 33 that is close to the first body side wall and connected to the front wall 31. For example, when the hinge assembly is located on the right side of the housing 1, the right side wall of the door 3 is the side wall 33. When the hinge assembly is located on the left side of the housing 1, the left side wall of the door 3 is the side wall 33. It should be noted that the front wall 31 is the foremost surface of the door 3 when it is closed. When the door 3 includes a glass panel located on its front side when it is closed, the front wall 31 is the foremost surface of the glass panel. The rear wall 32 is the surface closest to the rear side when the door 3 is closed. When the door 3 is closed, the distance between the front wall 31 and the plane where the access opening is located is the largest, and the distance between the rear wall 32 and the plane where the access opening is located is the smallest.

[0108] In some embodiments of this application, the door sidewall 33 is connected to the door frontwall 31 and is close to the pivot axis of the door body 3. The pivot axis of the door body 3 is close to the first body sidewall.

[0109] The front wall 31 and the side wall 33 of the door 3 intersect to form a first side edge W, and the side wall 33 intersects with the rear wall 32 to form a second side edge N. When the door 3 is closed, the first side edge W is located on the side of the second side edge N that is away from the box 1.

[0110] It should be noted that when both the front wall 31 and the side wall 33 are flat surfaces, the intersection line of the plane containing the front wall 31 and the plane containing the side wall 33 is the first side edge W. When the intersection of the front wall 31 and the side wall 33 is rounded, a radius is formed along the height direction of the door body 3 (i.e., as shown in the image). Figure 1 The curved surface extends along the height direction shown in the figure. For ease of description, any straight line extending along the height direction of the door body 3 on this curved surface represents the first side edge W. Similarly, the corners at the intersection of the rear wall 32 and the side wall 33 are rounded, and the intersection line of the planes of the rear wall 32 and the side wall 33 can be used to represent the second side edge N, or a straight line that is close to and parallel to the intersection line can be used to represent the second side edge N.

[0111] In some embodiments of this application, a door seal is provided on the rear wall 32 of the door body 3. When the door body 3 closes the access opening, the door seal surrounds the access opening to effectively seal it. When the door body 3 is closed, the door seal fits against the front end face of the housing 1 to effectively seal the connection between the door body 3 and the housing 1, thereby ensuring that the door body 3 seals the access opening and preventing cold air from escaping.

[0112] In this application, the use of This indicates the opening angle of door 3.

[0113] In some embodiments of this application, the opening angle of the door 3 is... The front wall 31 is parallel to the plane where the retrieval and placement opening is located.

[0114] In some embodiments of this application, the opening angle of the door 3 is... The rear wall 32 of the door is perpendicular to the plane where the retrieval and placement opening is located.

[0115] In some embodiments of this application, the opening angle of the door 3 is... The side wall 33 of the door is parallel to the plane where the retrieval and placement opening is located.

[0116] In some embodiments of this application, relative to the opening angle of the door 3 The opening angle of door 3 relative to box 1 when the retrieval opening is open. It is a positive number.

[0117] Door 3 along the closing direction from When the movement continues and further compresses the door seal, the opening angle of door 3 becomes negative.

[0118] In some embodiments of this application, the opening angle of the door 3 is... This is marked as the off state.

[0119] In some embodiments of this application, when the door 3 is in the closed state, its opening angle is... That is, when door 3 is closed, the amount of deformation of door 3 pressing against the door seal relative to The door is larger, resulting in a better seal between the door 3 and the housing 1. In some embodiments of this application, when the door 3 is closed, its opening angle is...

[0120] In some embodiments of this application, the hinge assembly includes a first hinge member and a second hinge member, the first hinge member and the second hinge member cooperating and being able to rotate relative to each other, so that the door 3 and the box 1 can rotate relative to each other.

[0121] In some embodiments of this application, a first hinge member is disposed on the housing 1 and close to one of the housing side walls; in this embodiment, the first hinge member being close to the first housing side wall is used as an example for description. A second hinge member is disposed at the end of the door 3 close to the first hinge member, and the first hinge member and the second hinge member cooperate to allow the housing 1 and the door 3 to rotate relative to each other.

[0122] Reference Figures 2 to 4 The first hinge component includes a hinge plate 4. Specifically, the hinge plate 4 includes a connecting portion 41 connected to the housing 1 and an extension portion 42 extending forward from the connecting portion 41. The extension portion 42 may be configured to be parallel to the top wall of the housing 1. The connecting portion 41 can be fastened to the top wall of the housing 1 using fasteners such as screws, pins, and bolts. Specifically, for the hinge at the upper end of the door 3, the connecting portion 41 is connected to the top wall of the housing 1. For the hinge at the lower end of the door 3, the connecting portion 41 is connected to the front end face of the housing 1.

[0123] In some embodiments of this application, the first hinge component includes a first shaft 5 and a guide portion 7. Both the first shaft 5 and the guide portion 7 are connected to the housing 1.

[0124] In some embodiments of this application, both the first shaft 5 and the guide portion 7 are disposed on the hinge plate 4. The first shaft 5 is located on the side of the guide portion 7 furthest from the sidewall of the first body. This arrangement ensures that the first shaft 5 and the guide portion 7 are positioned along the width direction of the housing 1, reducing their space occupation in the front-rear direction of the housing 1 and making the structure of the first hinge component more compact.

[0125] The second hinge component includes a second shaft 6 and a guide portion 8. The second shaft 6 and the guide portion 8 are located on the end of the door body 3 near the first hinge component. Specifically, the second shaft 6 is located on the side of the guide portion 8 near the front wall 31 of the door.

[0126] The first shaft 5 is adapted to the guide part 8; the second shaft 6 is adapted to the guide part 7; during the process of the door 3 rotating to open or close, the first shaft 5 moves relative to the guide part 8, and the second shaft 6 moves relative to the guide part 7, so that the door 3 moves at least a certain distance along the width direction of the box 1 while rotating to open the loading and unloading port.

[0127] The central axis of the first axis 5 is denoted as the first central axis Q. The central axis of the second axis 6 is denoted as the second central axis P. When the door 3 is opened, the trajectory line of the second central axis P relative to the guide part 7 is denoted as the guide trajectory line S.

[0128] In some embodiments of this application, the guide trajectory line S is curved. The curved guide trajectory line S protrudes towards the side away from the plane where the pick-and-place port is located. That is, the guide trajectory line S extends from its end away from the sidewall of the first body towards the sidewall of the first body and away from the plane where the pick-and-place port is located, and then extends towards the sidewall of the first body and the plane where the pick-and-place port is located. The extension trend of the guide trajectory line S is divided into two segments, and its trajectory extension trend is simple, which improves the smoothness of the movement of the second axis relative to the guide part.

[0129] In some embodiments of this application, the guide trajectory line S is an arc to make the movement of the second axis 6 relative to the guide portion 7 smoother.

[0130] In some embodiments of this application, the guide portion 7 is configured as a guide groove. The guide groove is a continuous curved groove that protrudes to the side away from the plane where the pick-up and drop-off port is located.

[0131] In some embodiments of this application, the guide groove is an arc groove.

[0132] In some embodiments of this application, the guide groove includes a guide groove bottom, a circumferential guide groove wall surrounding the guide groove bottom, and a guide groove opening defined by the circumferential guide groove wall and disposed opposite to the guide groove bottom. The second shaft 65 extends into the guide groove through the guide groove opening. The circumferential sidewall of the second shaft 65 cooperates with the circumferential guide groove wall of the guide groove to guide the second shaft 65 as it moves relative to the guide groove. This configuration of the guide groove, with its circumferential guide groove wall guiding the second shaft 65, results in more stable relative movement.

[0133] In some embodiments of this application, the guide groove includes a guide slot opening disposed on the hinge plate 4. The second shaft 6 passes through the guide slot opening, and the circumferential sidewall of the second shaft 6 cooperates with the hinge plate 4 surrounding the guide slot opening to guide the second shaft 6 when it moves relative to the guide groove. The above arrangement can achieve the purpose of guiding the second shaft 6 with the guide groove, and is easy to manufacture.

[0134] Reference Figure 5 In some embodiments of this application, the center of the arc-shaped guide trajectory line S is denoted as the guide center O. The guide center O is located on the side of the guide trajectory line S closest to the plane where the pick-up and drop-off port is located. The radius of the arc-shaped guide trajectory line S is denoted as the guide radius R.

[0135] In some embodiments of this application, 8mm≤R≤12mm.

[0136] When R < 8mm, the guide radius R is too small and the curvature of the guide trajectory line S is too large, causing the movement speed of the second shaft 6 relative to the guide part 7 to change too quickly.

[0137] When 12mm < R, the guide radius R is too large, the curvature of the guide trajectory line S is too small, resulting in a small change in the movement speed of the second shaft 6 relative to the guide part 7, an excessively long guide trajectory line, and a large space occupied by the guide part 7 in the hinge plate 4, which reduces the strength of the hinge plate 4 and also reduces the strength of the guide part 7, thus reducing the service life of the hinge assembly.

[0138] When 8mm≤R, it can avoid the excessive curvature of the guide trajectory line S, which would cause the movement speed of the second axis 6 relative to the guide part 7 to change too quickly, thereby improving the stability of the door body 3 relative to the box body 1.

[0139] When R≤12mm, avoid the guide trajectory line S being too small, which would cause the second shaft 6 to move too slowly relative to the guide part 7. This will prevent the guide trajectory line from being too long, reduce the space occupied by the guide part 7 on the hinge plate 4, prevent the strength of the hinge plate 4 from being reduced, and ensure the service life of the hinge assembly.

[0140] The above setting of 8mm≤R≤12mm makes the movement of the second shaft 6 relative to the guide part 7 more stable, thereby improving the stability of the movement of the door body 3 relative to the box body 1. On the other hand, the area occupied by the guide part 7 on the hinge plate 4 is limited to ensure the strength of the hinge plate 4 and the guide part 7, effectively ensuring the service life of the hinge assembly.

[0141] In the projection of the plane containing the top wall of the housing 1, the guide center O is located on the side of the first central axis Q that is close to the plane containing the pick-up and drop-off port and the side wall of the first body.

[0142] In some embodiments of this application, the point at which the guide trajectory line S is furthest from the plane containing the pick-up and drop-off port is denoted as the first guide point P1. The first central axis Q is located on the side of the first guide point P1 that is close to the plane containing the pick-up and drop-off port and far from the sidewall of the first body.

[0143] In some embodiments of this application, during the opening process of the door 3, when the door 3 opens at an angle... At this point, the distance between the second central axis P and the side wall of the first body is at its minimum. At this point, the second central axis P is located at the first extreme guide point P1' of the guide trajectory line S.

[0144] When door 3 opens to the desired angle At this point, the distance between the second central axis P and the sidewall of the first body is at its maximum. At this time, the second central axis P is located at the second extreme guide point P2' of the guide trajectory line S.

[0145] In some embodiments of this application, in the projection of the plane containing the top wall of the housing 1, the distance between the first central axis Q and the first guide point P1 in the direction perpendicular to the plane containing the pick-up and drop-off port is denoted as |QP1|1; the distance between the first central axis Q and the first extreme guide point P1` is denoted as |QP1`|1; and the distance between the first central axis Q and the second extreme guide point P2` is denoted as |QP2`|1.

[0146] In some embodiments of this application, in the projection of the plane containing the top wall of the housing 1, the first guide point P1, the first extreme guide point P1', and the second extreme guide point P2' are all located on the side of the first central axis Q away from the plane containing the pick-up and put-out port. That is, the trajectory segment of the guide trajectory line S extending from the first extreme guide point P1' through the first guide point P1 to the second extreme guide point P2' is located on the side of the first central axis Q away from the plane containing the pick-up and put-out port.

[0147] In some embodiments of this application, |QP1`|1≤|QP1|1, |QP2`|1≤|QP1|1. However, |QP1|1=|QP1`|1 and |QP1|1=|QP2`|1 do not hold simultaneously.

[0148] In some embodiments of this application, 0mm≤|QP1|1≤4mm.

[0149] When 4mm < |QP1|1, when the second shaft 6 moves to the point where the distance between the guide part 7 and the plane where the pick-up and put-out opening is the maximum, the distance between the second shaft 6 and the first shaft 5 in the direction perpendicular to the plane where the pick-up and put-out opening is too large. This results in the door body 3 having too large a displacement relative to the cabinet body 1 in the direction perpendicular to the plane where the pick-up and put-out opening is located. This causes the movement of the door body 3 relative to the cabinet body 1 in the width direction to be unbalanced with the movement in the front-back direction, and cannot effectively reduce the restriction on the movement of the door body 3 by the space defined by the cabinet 2.

[0150] In this application, the setting of 0mm≤|QP1|1≤4mm ensures that when the second axis 6 moves to the maximum distance between the guide part 7 and the plane where the pick-up and put-out opening is located, the second axis 6 moves closer to the first axis 5 in the direction perpendicular to the plane where the pick-up and put-out opening is located. This effectively controls the amount of displacement of the door body 3 relative to the cabinet 1 in the direction perpendicular to the plane where the pick-up and put-out opening is located, thereby controlling the amount of movement of the door body 3 relative to the cabinet 1 in the width direction and in the front-back direction. This reduces the restriction of the space defined by the cabinet 2 on the movement of the door body 3, allowing the door body 3 to be opened to a larger angle.

[0151] In some embodiments of this application, 0mm≤|QP1`|1≤2mm.

[0152] When 2mm < |QP1`|1, when the second shaft 6 moves to the point where the distance between the guide part 7 and the side wall of the first body is the minimum, the distance between the second shaft 6 and the first shaft 5 in the direction perpendicular to the plane where the pick-up and put-out opening is located is too large. This results in the door body 3 having too large a displacement relative to the cabinet body 1 in the direction perpendicular to the plane where the pick-up and put-out opening is located. This causes the amount of movement of the door body 3 relative to the cabinet body 1 in the width direction to be unbalanced with the amount of movement in the front-back direction. This cannot effectively reduce the restriction on the movement of the door body 3 by the space defined by the cabinet 2.

[0153] In this application, the setting of 0mm≤|QP1`|1≤2mm ensures that when the second axis 6 moves to the point where the distance between the guide part 7 and the side wall of the first body is minimized, the second axis 6 moves closer to the first axis 5 in the direction perpendicular to the plane where the pick-up and put-out opening is located. This effectively controls the amount of displacement of the door body 3 relative to the cabinet body 1 in the direction perpendicular to the plane where the pick-up and put-out opening is located, thereby controlling the amount of movement of the door body 3 relative to the cabinet body 1 in the width direction and in the front-back direction. This reduces the restriction of the space defined by the cabinet 2 on the movement of the door body 3, allowing the door body 3 to be opened to a larger angle.

[0154] In some embodiments of this application, 0mm≤|QP2`|1≤3mm.

[0155] When 3mm < |QP2`|1, when the second shaft 6 moves to the maximum distance between the guide part 7 and the side wall of the first body, the distance between the second shaft 6 and the first shaft 5 in the direction perpendicular to the plane where the pick-up and put-out opening is located is too large. This results in the door body 3 having too large a displacement relative to the cabinet body 1 in the direction perpendicular to the plane where the pick-up and put-out opening is located. This causes the movement of the door body 3 relative to the cabinet body 1 in the width direction to be unbalanced with the movement in the front-back direction. This cannot effectively reduce the restriction on the movement of the door body 3 by the space defined by the cabinet 2.

[0156] In this application, the setting of 0mm≤|QP2`|1≤3mm ensures that when the second axis 6 moves to the maximum distance between the guide part 7 and the side wall of the first body, the second axis 6 moves closer to the first axis 5 in the direction perpendicular to the plane where the pick-up and put-out opening is located. This effectively controls the displacement of the door body 3 relative to the cabinet body 1 in the direction perpendicular to the plane where the pick-up and put-out opening is located, thereby controlling the amount of movement of the door body 3 relative to the cabinet body 1 in the width direction and in the front-back direction. This reduces the restriction of the space defined by the cabinet 2 on the movement of the door body 3, allowing the door body 3 to be opened to a larger angle.

[0157] The above limits of 0mm≤|QP1|1≤4mm, 0mm≤|QP1`|1≤2mm, and 0mm≤|QP2`|1≤3mm collectively define the overall trend of the guide trajectory line S. This ensures that during the opening of the door 3, the second axis 6 remains close to the first axis 5 throughout the direction perpendicular to the plane where the retrieval opening is located. This effectively controls the displacement of the door 3 relative to the cabinet 1 in the direction perpendicular to the plane where the retrieval opening is located, and controls the movement of the door 3 relative to the cabinet 1 in the width direction and the front-back direction. This ensures that the total displacement at each stage meets the needs of each stage during the opening of the door 3, while reducing the restriction of the space defined by the cabinet 2 on the movement of the door 3, allowing the door 3 to open to a larger angle.

[0158] In some embodiments of this application, 20°≤∠P1`OP2`≤30°.

[0159] When ∠P1`OP2` < 20°, ∠P1`OP2` is too small, the length of the guide trajectory line is too small, the length of the guide part 7 is too small, the number of relative frictions between the second shaft 6 and the guide part 7 is high, which increases the wear of the second shaft 6 and the guide part 7 and reduces the life of the hinge assembly.

[0160] When 30° < ∠P1`OP2`, ∠P1`OP2` is too large, the length of the guide trajectory line is too large, the length of the guide part 7 is too large, the guide part 7 occupies a large space of the hinge plate 4, which leads to a reduction in the strength of the hinge plate 4, and also to a reduction in the strength of the guide part 7, thus reducing the service life of the hinge assembly.

[0161] When 20°≤∠P1`OP2`, the length of the guide trajectory line is limited to a reasonable range, and the number of relative frictions between the second shaft 6 and the guide part 7 is limited, reducing the wear of the second shaft 6 and the guide part 7 and ensuring the life of the hinge assembly.

[0162] When ∠P1`OP2`≤30°, the length of the guide trajectory line is limited to a reasonable range, reducing the space occupied by the guide part 7 on the hinge plate 4, avoiding a reduction in the strength of the hinge plate 4, and ensuring the service life of the hinge assembly.

[0163] The setting of 20°≤∠P1`OP2`≤30° limits the length of the guide trajectory line (guide part 7). On the one hand, it reduces the number of relative frictions between the second shaft 6 and the guide part 7, thereby reducing the wear of the second shaft 6 and the guide part 7. On the other hand, it reduces the space occupied by the guide part 7 on the hinge plate 4, avoiding the reduction of the strength of the hinge plate 4 and ensuring the service life of the hinge assembly.

[0164] In some embodiments of this application, 12°≤∠P1`OP1≤20°.

[0165] The stroke of the second shaft 6 relative to the guide part 7 between the first guide point P1 and the first limit guide point P1' is denoted as the first stroke.

[0166] When ∠P1`OP1 < 12°, ∠P1`OP1 is too small, the first stroke of the second axis 6 relative to the guide part 7 between the first guide point P1 and the first limit guide point P1` is too small, the first stroke of the door body 3 relative to the cabinet body 1 in the width direction and in the front-back direction is too small, and it cannot effectively reduce the restriction of the space defined by the cabinet 2 on the movement of the door body 3.

[0167] When 20° < ∠P1`OP1, ∠P1`OP1 is too large. During the movement of the second axis 6 relative to the guide part 7 between the first guide point P1 and the first limit guide point P1`, there is a situation where the distance between the second axis 6 and the first axis 5 in the direction perpendicular to the plane where the pick-up and put-out opening is located is too large. This results in at least one segment of the door body 3 having an excessively large displacement in the direction perpendicular to the plane where the pick-up and put-out opening is located during the movement of the cabinet body 1. This causes an imbalance between the amount of movement of the door body 3 in the width direction and the amount of movement in the front-back direction relative to the cabinet body 1, and cannot effectively reduce the restriction on the movement of the door body 3 by the space defined by the cabinet 2.

[0168] When 12°≤∠P1`OP1, the first stroke of the second axis 6 relative to the guide part 7 between the first guide point P1 and the first limit guide point P1` satisfies the movement requirements of the door body 3. The appropriate first stroke of the door body 3 relative to the cabinet 1 in the width direction and in the front-back direction satisfies the movement requirements of the door body 3, which can effectively reduce the restriction of the space defined by the cabinet 2 on the movement of the door body 3.

[0169] When ∠P1`OP1≤20°, during the movement of the second axis 6 relative to the guide part 7 between the first guide point P1 and the first limit guide point P1`, in the direction perpendicular to the plane where the pick-up and put-out opening is located, the second axis 6 moves closer to the first axis 5, effectively controlling the amount of movement of the door body 3 relative to the cabinet body 1 in the width direction and in the front-back direction, which can effectively reduce the restriction of the space defined by the cabinet 2 on the movement of the door body 3.

[0170] In this application, the setting of 12°≤∠P1`OP1≤20° ensures that during the movement of the second axis 6 to the guide part 7 at the first guide point P1 and the first limit guide point P1`, the amount of movement of the door 3 relative to the cabinet 1 in the width direction and the amount of movement in the front-back direction are appropriate in the direction perpendicular to the plane where the pick-up and put-out opening is located, and the stroke is appropriate to meet the movement requirements of the door 3, so as to more efficiently reduce the restriction of the space defined by the cabinet 2 on the movement of the door 3.

[0171] In some embodiments of this application, 7°≤∠P2`OP1≤11°.

[0172] The travel distance of the second shaft 6 relative to the guide part 7 between the first guide point P1 and the second limit guide point P2' is denoted as the second travel distance.

[0173] When ∠P2`OP1 < 7°, ∠P2`OP1 is too small, the second stroke of the second axis 6 relative to the guide part 7 between the first guide point P1 and the second limit guide point P2` is too small, the second stroke of the door body 3 relative to the cabinet 1 with appropriate movement in the width direction and movement in the front-back direction is too small, and it cannot effectively reduce the restriction of the space defined by the cabinet 2 on the movement of the door body 3.

[0174] When 11° < ∠P2`OP1, ∠P2`OP1 is too large. During the movement of the second axis 6 relative to the guide part 7 between the first guide point P1 and the second limit guide point P2`, there is a situation where the distance between the second axis 6 and the first axis 5 in the direction perpendicular to the plane where the pick-up and put-out opening is located is too large. This results in at least one segment of the door body 3 having an excessively large displacement in the direction perpendicular to the plane where the pick-up and put-out opening is located during the movement of the cabinet body 1. This causes an imbalance between the amount of movement of the door body 3 in the width direction and the amount of movement in the front-back direction relative to the cabinet body 1, and cannot effectively reduce the restriction on the movement of the door body 3 by the space defined by the cabinet 2.

[0175] When 7°≤∠P2`OP1, the second stroke of the second axis 6 relative to the guide part 7 between the first guide point P1 and the second limit guide point P2` satisfies the movement requirements of the door body 3. The appropriate second stroke of the door body 3 relative to the cabinet 1 in the width direction and in the front-back direction satisfies the movement requirements of the door body 3, which can effectively reduce the restriction of the space defined by the cabinet 2 on the movement of the door body 3.

[0176] When ∠P2`OP1≤11°, during the movement of the second axis 6 relative to the guide part 7 between the first guide point P1 and the second limit guide point P2`, in the direction perpendicular to the plane where the pick-up and put-out opening is located, the second axis 6 moves closer to the first axis 5, effectively controlling the amount of movement of the door body 3 relative to the cabinet body 1 in the width direction and in the front-back direction, which can effectively reduce the restriction of the space defined by the cabinet 2 on the movement of the door body 3.

[0177] In this application, the setting of 7°≤∠P2`OP1≤11° ensures that during the movement of the second axis 6 to the guide part 7 at the first guide point P1 and the second limit guide point P2`, the amount of movement of the door body 3 relative to the cabinet 1 in the width direction and the amount of movement in the front-back direction are appropriate in the direction perpendicular to the plane where the pick-up and put-out opening is located, and the stroke is appropriate, so as to more efficiently reduce the restriction of the space defined by the cabinet 2 on the movement of the door body 3.

[0178] In some embodiments of this application, 1.6≤∠P1`OP1:∠P2`OP1≤2.

[0179] When ∠P1`OP1:∠P2`OP1 < 1.6, ∠P1`OP1:∠P2`OP1 is too small, resulting in a small first stroke. The appropriate first stroke for the movement of the door 3 relative to the cabinet 1 in both the width and front-back directions is insufficient, failing to effectively reduce the restriction imposed by the space defined by the cabinet 2 on the movement of the door 3. Furthermore, the ratio of the first stroke to the second stroke is too small, leading to an imbalance in the distribution of the first and second strokes during the movement of the door 3 relative to the cabinet 1, which cannot meet the displacement requirements of the door 3 at each stage of opening.

[0180] When 2 < ∠P1`OP1 : ∠P2`OP1, ∠P1`OP1 : ∠P2`OP1 is too large, resulting in an excessively large first stroke. This leads to an excessively large distance between the second axis 6 and the first axis 5 in the direction perpendicular to the plane containing the retrieval opening. Consequently, during the movement of the door 3 relative to the cabinet 1, at least one segment experiences excessive displacement in the direction perpendicular to the plane containing the retrieval opening. This causes an imbalance between the width-direction and front-back-direction movement of the door 3 relative to the cabinet 1, failing to effectively reduce the restriction on the movement of the door 3 by the space defined by the cabinet 2. Furthermore, the ratio of the first stroke to the second stroke is too large, resulting in an imbalance in the distribution of the first and second strokes during the movement of the door 3 relative to the cabinet 1, which cannot meet the displacement requirements of the door 3 at each stage of opening.

[0181] When 1.6 ≤ ∠P1`OP1 : ∠P2`OP1, the first stroke satisfies the movement requirements of the door 3. The appropriate first stroke, with its appropriate movement of the door 3 relative to the cabinet 1 in both the width and front-back directions, effectively reduces the restriction on the door 3's movement imposed by the space defined by the cabinet 2. Furthermore, the ratio of the first stroke to the second stroke is limited to a suitable range to control the relative amounts of the first and second strokes of the door 3 relative to the cabinet 1 during movement, thus meeting the displacement requirements of the door 3 at each stage of opening.

[0182] When ∠P1`OP1≤20°, during the first stroke, in the direction perpendicular to the plane where the pick-up and drop-off opening is located, the second axis 6 approaches the first axis 5, effectively controlling the amount of movement of the door 3 relative to the cabinet 1 in the width direction and in the front-back direction. This effectively reduces the restriction on the movement of the door 3 by the space defined by the cabinet 2. In addition, the ratio of the first stroke to the second stroke is limited to a suitable range to control the relative amounts of the first and second strokes of the door 3 relative to the cabinet 1 during movement, which can meet the displacement requirements of the door 3 at each stage of opening.

[0183] In this application, the setting of 1.6≤∠P1`OP1:∠P2`OP1≤2 ensures that during the first stroke, the amount of movement of the door 3 relative to the cabinet 1 in the width direction and the amount of movement in the front-back direction are appropriate in the direction perpendicular to the plane where the pick-up and drop-off opening is located, and the stroke appropriately meets the movement requirements of the door 3, so as to more efficiently reduce the impact of the space defined by the cabinet 2 on the movement of the door 3. In addition, the ratio of the first stroke to the second stroke is limited to a suitable range to control the relative amount of the first stroke and the second stroke of the door 3 relative to the cabinet 1 during movement, so as to meet the displacement requirements of the door 3 at each stage of opening.

[0184] In the projection of the plane containing the top wall of housing 1, the distance between the first central axis Q and the guide center O in the direction perpendicular to the plane containing the loading and unloading port is denoted as |QO|1. 3≤|QO|1:|QP1|1.

[0185] When |QO|1:|QP1|1 < 3, |QO|1:|QP1|1 is too small. When the second axis 6 moves to the maximum distance between the guide part 7 and the plane where the pick-up and put-out opening is located, the distance between the second axis 6 and the first axis 5 in the direction perpendicular to the plane where the pick-up and put-out opening is located is too large. This results in the door body 3 being too large in the direction perpendicular to the plane where the pick-up and put-out opening is located relative to the cabinet body 1. This causes the movement of the door body 3 relative to the cabinet body 1 in the width direction to be unbalanced with the movement in the front-back direction. This cannot effectively reduce the restriction on the movement of the door body 3 by the space defined by the cabinet 2.

[0186] In this application, the setting of 3≤|QO|1:|QP1|1 causes the second axis 6 to move to the maximum distance between the guide part 7 and the plane where the pick-up and put-away port is located. In the direction perpendicular to the plane where the pick-up and put-away port is located, the second axis 6 moves closer to the first axis 5, effectively controlling the displacement of the door body 3 relative to the cabinet 1 in the direction perpendicular to the plane where the pick-up and put-away port is located. This controls the amount of movement of the door body 3 relative to the cabinet 1 in the width direction and in the front-back direction, thereby reducing the restriction of the space defined by the cabinet 2 on the movement of the door body 3, and enabling the door body 3 to open to a larger angle.

[0187] Reference Figure 6 When the door 3 is opened, the second axis 6 moves relative to the guide part 7, and the trajectory line of the first central axis Q moving relative to the guide part 8 is denoted as the guide trajectory line F.

[0188] In some embodiments of this application, the guide trajectory line F includes a first guide segment that extends from one end away from the door sidewall 33 toward the side closer to the door sidewall 33 and away from the front door wall 31.

[0189] In some embodiments of this application, the distance between the first guide segment and the second central axis P first decreases and then increases from the end of the first guide segment away from the door sidewall 33.

[0190] In some embodiments of this application, the guide trajectory line F includes a second guide segment that extends from one end away from the door sidewall 33 toward the side closer to the door sidewall 33 and the front wall 31.

[0191] In some embodiments of this application, the distance between the second guide segment and the second central axis P first increases and then decreases from the end of the guide segment furthest from the door sidewall 33.

[0192] In some embodiments of this application, the guide trajectory line F includes a first guide segment and a second guide segment connected together. The guide trajectory line F extends from the end of the first guide segment away from the second guide segment toward a side closer to the door sidewall 33 and away from the front door wall 31 to H, and then extends from H toward a side closer to both the door sidewall 33 and the front door wall 31. This defines the extension trend of the trajectory of the guide portion guiding the central axis of the first axis to move. The extension trend of the guide trajectory line is divided into two segments, and its trajectory extension trend is simple, improving the smoothness of the movement of the first axis relative to the guide portion.

[0193] In some embodiments of this application, the guide trajectory line F is curved. The curved guide trajectory line F protrudes towards the side away from the front wall 31. The guide trajectory line F includes a first guide segment and a second guide segment connected to the end of the first guide segment near the door side wall 33. Specifically, the guide trajectory line F extends from its end away from the door side wall 33 towards the side near the door side wall 33 and away from the front wall 31, and then extends towards the side near both the door side wall 33 and the front wall 31.

[0194] In some embodiments of this application, the distance between the end of the guide trajectory line F away from the door side wall 33 and the front wall 31 is less than the distance between the end of the guide trajectory line F close to the door side wall 33 and the front wall 31.

[0195] In some embodiments of this application, the point on the guide trajectory line F that is furthest from the door sidewall 33 and closest to the front wall 31 is designated as the first guide point K. The point on the guide trajectory line F that is closest to the door sidewall 33 and closest to the front wall 31 is designated as the second guide point J. The point on the guide trajectory line F that is furthest from the front wall 31 is designated as the third guide point H.

[0196] Corresponding to the guide section 8, the point where the distance between the end of the guide section 8 furthest from the door side wall 33 and the front wall 31 is minimized is denoted as the first guide boundary point K'. The point where the distance between the end of the guide section 8 closest to the door side wall 33 and the front wall 31 is minimized is denoted as the second guide boundary point J'. The point where the distance between the guide section 8 and the front wall 31 is maximized is denoted as the third guide boundary point H'.

[0197] The first guide boundary point K', the second guide boundary point J', and the third guide boundary point H' are all located on the wall surface of the guide part 8 (guide groove) that mates with the first shaft 5. For example, when the guide part 8 is a guide groove, the first guide boundary point K', the second guide boundary point J', and the third guide boundary point H' are all located on the inner wall of the guide groove.

[0198] In some embodiments of this application, the first guide boundary point K' is located on the side of the starting guide point K near the front wall 31. The straight line K'K containing the first guide boundary point K' and the first guide point K is perpendicular to the front wall 31. The distance between the first guide boundary point K' and the first guide point K is equal to the radius of the first axis 5.

[0199] In some embodiments of this application, the second guide boundary point J' is located on the side of the second guide point J closer to the front wall 31. The line J'J containing the second guide boundary point J' is perpendicular to the front wall 31. The distance between the second guide boundary point J' and the second guide point J is equal to the radius of the first axis 5.

[0200] In some embodiments of this application, the third guide boundary point H' is located on the side of the third guide point H away from the front wall 31. The straight line H'H containing the third guide boundary point H' and the third guide point H is perpendicular to the front wall 31. The distance between the third guide boundary point H' and the third guide point H is equal to the radius of the first axis 5.

[0201] In determining the positions of the first guide point K, the second guide point J, and the third guide point H, the positions of the first guide boundary point K', the second guide boundary point J', and the third guide boundary point H', as well as the radius of the first axis 5, can be obtained by measuring with measuring tools. Then, based on the relative relationships that the distance between the first guide boundary point K' and the first guide point K is equal to the radius of the first axis 5, the distance between the second guide boundary point J' and the second guide point J is equal to the radius of the first axis 5, and the distance between the third guide boundary point H' and the third guide point H is equal to the radius of the first axis 5, the corresponding positions of the first guide point K, the second guide point J, and the third guide point H can be determined.

[0202] It should be noted that the phrase "equal to" in the above statements, such as "the distance between the first guide boundary point K' and the first guide point K is equal to the radius of the first axis 5," "the distance between the second guide boundary point J' and the second guide point J is equal to the radius of the first axis 5," and "the distance between the third guide boundary point H' and the third guide point H is equal to the radius of the first axis 5," includes deviations caused by machining errors, etc.

[0203] It can be set, and the above "equal to" includes cases where the difference between two equal objects is any value between 0 and 2 mm.

[0204] In some embodiments of this application, when the door 3 is in the closed state, the first central axis Q is located at the first guide point K of the guide trajectory line F.

[0205] In some embodiments of this application, when the door 3 is opened to its maximum angle, under the constraints of the guide part 8, the guide part 7, the first axis 5 and the second axis 6, the first central axis Q is located at the second guide point J of the guide trajectory line F.

[0206] It should be noted that, assuming the front wall 31 and the side wall 33 are perpendicular, the direction perpendicular to the front wall 31 is the same as the direction parallel to the side wall 33. Conversely, the direction perpendicular to the side wall 33 is the same as the direction parallel to the front wall 31.

[0207] When the front wall 31 and the side wall 33 are not perpendicular, the direction perpendicular to the front wall 31 only indicates the distance relative to and perpendicular to the front wall 31, and its parallel relationship with the side wall 33 is not necessarily related. Similarly, the direction perpendicular to the side wall 33 only indicates the distance relative to and perpendicular to the side wall 33, and its parallel relationship with the front wall 31 is not necessarily related.

[0208] Reference Figure 6 In the plane projection parallel to the top wall of the housing 1, along the direction perpendicular to the door side wall 33, the distance between the second central axis P and the third guide point H is denoted as |PH|2. Where 0mm ≤ |PH|2 ≤ 5mm.

[0209] When 5mm < |PH|2, |PH|2 is too large. In the direction perpendicular to the door side wall 33, the distance between the second axis 6 and the third guide point H, which is the largest distance from the front wall 31 on the guide trajectory line, is too large. During the movement of the door body 3 relative to the box body 1, when the first central axis Q moves to the third guide point H, the distance between the second central axis and the first central axis in the direction perpendicular to the door side wall 33 is too large, and the angle of inclination of the straight line containing the first central axis and the second central axis relative to the plane containing the pick-up and put-out opening is too large. At this time, the stability of the movement of the door body 3 relative to the box body 1 is poor.

[0210] In this application, the setting of 0mm≤|PH|2≤5mm means that in the direction perpendicular to the door sidewall 33, the second axis 6 is close to the third guide point H, which is the largest distance from the front wall 31 on the guide trajectory line; when the door body 3 moves relative to the box body 1, and the first central axis Q moves to the third guide point H, the second central axis is close to the first central axis in the direction perpendicular to the door sidewall 33, which effectively ensures the stability of the door body 3 relative to the box body 1.

[0211] Reference Figure 6In the plane projection parallel to the top wall of the box 1, along the direction perpendicular to the front wall 31 of the door, the distance between the second central axis P and the first guide point K is denoted as |PK|1. Wherein, 0mm≤|PK|1≤3mm.

[0212] When 3mm < |PK|1, |PK|1 is too large. In the direction perpendicular to the front wall 31 of the door, the distance between the second central axis P and the first guide point K, which is the furthest from the side wall 33 of the door, is too large. During the movement of the door body 3 relative to the box body 1, when the first central axis Q is located at the first guide point K, the distance between the second central axis and the first central axis in the direction perpendicular to the front wall 31 of the door is too large, and the angle of inclination of the straight line containing the first central axis and the second central axis relative to the plane containing the pick-up and put-out opening is too large. At this time, the stability of the movement of the door body 3 relative to the box body 1 is poor.

[0213] In this application, the setting of 0mm≤|PK|1≤3mm ensures that, in the direction perpendicular to the front wall 31 of the door, the second axis 6 is close to the first guide point K on the guide trajectory line, which is the furthest from the side wall 33 of the door. During the movement of the door body 3 relative to the box body 1, when the door body 3 is closed, the first central axis Q is located at the first guide point K, and in the direction perpendicular to the side wall 33 of the door, the second central axis P is close to the first central axis, effectively ensuring the stability of the movement of the door body 3 relative to the box body 1.

[0214] In some embodiments of this application, the first guide point K is located on the side of the second central axis P away from the front wall 31 of the door.

[0215] like Figures 7-20 As shown, the movement of the first axis 5 along the guide portion 8 is equivalent to the movement of the first central axis Q along the guide trajectory line K. The movement of the second axis 6 along the guide portion 7 is equivalent to the movement of the second central axis P along the guide trajectory line S, so that the door 3 can move a certain distance inward (towards the side wall of the second body) while rotating, so that the door 3 does not interfere with the cabinet 2 and ensures that the door 3 can be opened effectively.

[0216] In some embodiments of this application, during the opening process of the door 3, the first axis 5 moves relative to the guide part 8 throughout the entire process, the second axis 6 moves relative to the guide part 7 throughout the entire process, and the door 3 rotates around a point that remains dynamically changing relative to the box 1 throughout the entire process.

[0217] In some embodiments of this application, line segment PQ is denoted as the axis line segment PQ within the projection of the plane containing the top wall of the housing 1. The midpoint of the axis line segment PQ is denoted as the axis center point I. During the opening process of the door 3, the first axis 5 moves relative to the guide part 8 throughout its entire movement, the second axis 6 moves relative to the guide part 7 throughout its entire movement, and the door 3 rotates around the point (axis center point I) that remains dynamically changing relative to the housing 1 throughout its entire movement. Under the above settings, during the opening process of the door 3, the first central axis Q moves relative to the guide trajectory line F, the second central axis P moves relative to the guide trajectory line S, and the door 3 rotates around the axis center point I as the instantaneous rotation center.

[0218] During the opening process of the door 3, the position of the first axis 5 relative to the box 1 remains unchanged, the position of the second axis 6 relative to the box 1 keeps changing, the position and length of the axis line segment PQ relative to the box 1 keep changing, the position of the axis center point I relative to the box 1 keeps changing, and the rotation center axis of the door 3 relative to the box 1 keeps changing.

[0219] The guide trajectory line F includes a second guide point J near the end of the door side wall 33 and a first guide point K away from the end of the door side wall 33. The guide trajectory line F extends from the first guide point K to the side near the door side wall 33 and away from the front wall 31 to the third guide point H, and then extends from the third guide point H to the side near the door side wall 33 and the front wall 31 to the second guide point J.

[0220] In some embodiments of this application, the guide trajectory line F is a smooth convex curve to make the movement of the first axis 5 relative to the guide portion 8 smoother.

[0221] like Figures 7-20 As shown, with the first shaft 5 and guide part 7 (box 1) provided on the cabinet 1 as stationary references, the movement of the second shaft 6 along the guide part 7 is equivalent to the movement of the second central axis P along the guide trajectory line S. The movement of the guide part 8 relative to the first shaft 5 is equivalent to the movement of the guide trajectory line F through the first central axis Q. This allows the door 3 to move a certain distance inward (towards the side wall of the second body) while rotating, thereby compensating for the outward displacement of the first side edge W caused by the simple rotation of the door 3, and effectively avoiding interference between the door 3 and the cabinet 2 when the door is opened.

[0222] The movement of door 3 relative to box 1 is equivalent to the relative movement between the two in the plane containing the top wall of box 1 (or in a plane parallel to the top wall of box 1); that is, the movement of door 3 relative to box 1 is a relative movement in a two-dimensional plane. In the plane containing the top wall of box 1, the movement of the guide part 8 on door 3 relative to the first axis 5 provided on box 1 (or the movement of the second axis 6 on door 3 relative to the guide part 7 provided on box 1) is equivalent to the movement of door 3 relative to hinge plate 4, and also equivalent to the movement of door 3 relative to box 1.

[0223] Within the plane containing the top wall of housing 1, on the side of housing 1 closest to door 3, establish a displacement coordinate system AOB. Specifically, in displacement coordinate system AOB, OB is perpendicular to the plane containing the pick-up / placement opening, and OA is parallel to the plane containing the pick-up / placement opening (or perpendicular to the side wall of the first body). In displacement coordinate system AOB, the direction from the side wall of the first body to the side wall of the second body is defined as the positive direction of the A-axis, and the direction from the plane containing the pick-up / placement opening to the front wall 31 of the door when it is closed (from back to front) is defined as the positive direction of the B-axis.

[0224] It should be noted that during the opening of door 3, the displacement coordinate system AOB remains stationary relative to box 1 and does not move as door 3 opens.

[0225] During the movement of door 3 relative to housing 1, door 3 undergoes both rotational and translational motion. The translational motion of door 3 can be decomposed into a first-direction movement perpendicular to the side wall of the first body (along axis A) and a second-direction movement perpendicular to the plane of the loading / unloading opening (along axis B). The amount of movement in the first direction perpendicular to the side wall of the first body (along axis A) is denoted as the first-direction displacement. Among them, the displacement in the first direction At that time, it has an inward displacement; displacement in the first direction At that time, it has an outward displacement. The displacement in the first direction... The module is denoted as

[0226] The amount of movement in the second direction (along the B-axis) perpendicular to the plane where the pick-up and drop-off ports are located is denoted as the displacement in the second direction. Among them, the displacement in the second direction At that time, it has a forward displacement; a second directional displacement At that time, it has a backward displacement. Among them, the displacement in the second direction... The module is denoted as

[0227] In some embodiments of this application, the opening angle of the door 3 is: When the door is closed, the first shaft 5 is located at the end of the guide 8 away from the door side wall 33, and the second shaft 6 is located at the end of the guide 7 close to the first side wall. The positions of the first shaft relative to the guide and the second shaft relative to the guide when the door is closed are defined above to limit the movement trend of the first shaft relative to the guide and the second shaft relative to the guide during the first stage of door opening. This limits the translational trend of the door relative to the cabinet during the first stage of door opening, thus avoiding interference between the door and the cabinet and preventing or reducing door pressure on the door seal.

[0228] In some embodiments of this application, such as Figure 7 , Figure 8 , Figures 13-16 As shown, under the constraints of the aforementioned guide part 8 and the first shaft 5, and the guide part 7 and the second shaft 6, the opening process of the door 3 has a first stage. The first stage is as follows:

[0229] In some embodiments of this application, the guide trajectory line S includes a starting guide point P0 near the sidewall of the first body and a first guide point P1 located on the side of the starting guide point P0 away from the sidewall of the first body.

[0230] The first guide point P1 is located on the side of the plane away from the starting guide point P0, away from the pick-up and drop-off port.

[0231] The guide trajectory line S extends from the starting guide point P0 in a direction away from the side wall of the first body and the plane where the pick-up and drop-out port is located to the first guide point P1.

[0232] The opening angle of door 3 is At that time, the second central axis P is located at the starting guide point P0 of the guide trajectory line S.

[0233] The opening angle of door 3 is At this time, the second central axis P is located at the first guide point P1 on the guide trajectory line S. At this point, the second central axis P is located at the position on the guide trajectory line S with the greatest distance from the plane containing the pick-and-place port. Specifically, the first guide point P1 is located on the side of the starting guide point P0 that is furthest from the sidewall of the first body and the plane containing the pick-and-place port.

[0234] Door body 3 is composed of Open to During the process, the second central axis P moves from the starting guide point P0 to the first guide point P1 relative to the guide trajectory line S (box 1 or hinge plate 4).

[0235] Door body 3 is composed of Open to During the process, the second central axis P moves relative to the guide trajectory line S (box 1 or hinge plate 4) to the side away from the side wall of the first body and the plane where the pick-and-place port is located. That is, the second axis 6 moves relative to the guide part 8 to the side away from the side wall of the first body and the plane where the pick-and-place port is located.

[0236] Door body 3 is composed of Open to During the process, the first central axis Q moves relative to the guide trajectory line F (door body 3) towards the side wall 33 and away from the front wall 31. That is, the first axis 5 moves relative to the guide part 8 towards the side wall 33 and away from the front wall 31.

[0237] The opening angle of door 3 is At this time, the guide trajectory line F passes through the first central axis Q, and the first central axis Q is located at the first guide point K of the guide trajectory line F. That is, the opening angle of the door 3 is... At this time, the first guide point K of the guide trajectory line F coincides with the first central axis Q. At this time, the opening angle of the door 3 is... At that time, the first guide point K of the guide trajectory line F is located at the starting guide position K0 relative to the box 1; the second guide point J of the guide trajectory line F is located at the starting guide point J0 relative to the box 1.

[0238] The opening angle of door 3 is At this time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the first guide position K1 relative to the housing 1; the second guide point J of the guide trajectory line F is located at the second guide point J1 relative to the housing 1. The first guide position K1 is located on the side of the starting guide position K0 away from the side wall of the first body and the plane where the pick-and-place port is located. The second guide point J1 is located on the side of the starting guide point J0 away from the side wall of the first body and close to the plane where the pick-and-place port is located.

[0239] Door body 3 is composed of Open to During the process, the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4). The door 3 is constructed by... Open to During the process, the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q from its position coinciding with the first central axis Q, while the second guide point J gradually moves closer to the first central axis Q. In the above door body 3, ... Open to During the process, the first guide point K moves away from the side wall of the first body and the plane where the pick-up and put-out port is located, and the second guide point J moves away from the side wall of the first body and closer to the plane where the pick-up and put-out port is located.

[0240] Door body 3 is composed of Open to During the process, the second central axis P gradually approaches the first central axis Q.

[0241] The opening angle of door 3 is At that time, the center point I of the axis is located at the starting midpoint I0 relative to the box 1.

[0242] The opening angle of door 3 is At that time, the center point I of the axis is located at the first midpoint I1 relative to the box 1.

[0243] In some embodiments of this application, the first midpoint I1 is located on the side of the starting midpoint I0 away from the sidewall of the first body. The door body 3 is composed of... Open to During the process, the center point I of the axis moves away from the side wall of the first body relative to the box 1.

[0244] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the first direction The door 3 has a tendency to move inward to compensate for the displacement of the first side edge W caused by the simple rotation of the door 3, so as to avoid the first side edge W from colliding with the cabinet 2 and causing the door 3 to be unable to continue to open; in addition, the door 3 moves inward to reduce the limitation of the space defined by the cabinet 2 on the maximum angle that the door 3 can open, so that the door 3 of the refrigerator 100 placed in the cabinet 2 can open at a larger angle, making it more convenient for users to take out and put in items.

[0245] In some embodiments of this application, the first midpoint I1 is located on the side of the starting midpoint I0 away from the plane where the pick-up and drop-off port is located. The door body 3 is composed of... Open to During the process, the center point I of the axis moves away from the plane where the pick-up and drop-off port is located relative to the box 1.

[0246] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the second direction The door 3 has a tendency to move forward so that it moves away from the space defined by the cabinet 2, thereby reducing the limitation imposed by the space defined by the cabinet 2 on the maximum angle at which the door 3 can be opened.

[0247] In some embodiments of this application, the first midpoint I1 is located on the side of the starting midpoint I0 away from the plane containing the first body sidewall and the pick-up / place-out opening. The door body 3 is composed of... Open to During the process, the center point I of the axis moves relative to the box 1 to the side away from the side wall of the first body and the plane where the pick-up and drop-off port is located.

[0248] In some embodiments of this application, with the housing 1 (hinge plate 4) as a reference, the door 3 is composed of... Open to During the process, displacement in the first direction Second directional displacement Door body 3 is composed of Open to During the process, the door 3, while rotating to open the pick-up and drop-off port, also tends to move inward and forward.

[0249] In some embodiments of this application, the door body 3 is composed of... Open to During the process, That is, door body 3 is composed of Open to During the process, the translational movement of the door 3 is mainly inward movement, supplemented by forward movement. It is mainly to compensate for the displacement of the first side edge W caused by the simple rotation of the door 3, and is supplemented by efficiently reducing the limitation of the maximum opening angle of the door 3 within the space defined by the cabinet 2, so as to facilitate the door 3 to be opened to a larger angle within the space defined by the cabinet 2.

[0250] In some embodiments of this application, the initial guide point P0 is the first extreme guide point P1'. That is, when the door 3 is opened to... At that time, the second central axis P is located at the position where the distance between the guide trajectory line S and the side wall of the first body is the smallest (at the first limit guide point P1` / starting guide point P0).

[0251] In some embodiments of this application, the initial guide point P0 is located on the side of the first limit guide point P1' that is away from the plane containing the first body sidewall and the pick-up / place-out opening. That is, when the door 3 is opened to... At that time, the position of the second central axis P relative to the guide trajectory line S is at a certain distance from the first limit guide point P1'. Correspondingly, the door 3 opens to... At this time, the second shaft 6 is located near the side wall of the first body on the guide section 7, and there is a gap between the second shaft 6 and the end of the guide section 7 near the side wall of the first body. When the guide section 7 is configured as a guide groove, the door 3 opens to... At this time, there is a gap between the second shaft 6 and the end wall of the guide groove near the side wall of the first body. This arrangement allows the door body 3 to... As the door continues to move in the closing direction, the second shaft 6 can continue to move relative to the guide section 7 (guide groove) towards the side wall of the first body, so that the door 3 can continue to close.

[0252] In some embodiments of this application, Door 3 is in the closed state. At that time, the second central axis P is located at the starting guide point P0 of the guide trajectory line S. The starting guide point P0 is located on the side away from the first limit guide point P1' away from the plane where the first body sidewall and the pick-up and put-out port are located. There is a gap between the second axis 6 and the end of the guide part 7 (guide groove) near the first body sidewall, so that the door 3 can continue to move in the closing direction from the closed state, so as to ensure that when the door 3 is forcefully thrown against the box 1, the second axis 6 and the end of the guide part 7 near the first body sidewall are prevented from impacting each other.

[0253] In some embodiments of this application,

[0254] In some embodiments of this application, Door 3 is in the closed state. Door 3 closed to At this time, there is a gap between the second shaft 6 and the end of the guide part 7 near the side wall of the first body, allowing the door 3 to continue moving in the closing direction from the closed state until the door 3 is closed. When the door 3 is in a closed state relative to the housing 1, it is at a negative angle, and the door 3 presses against the door seal to ensure the airtightness between the door 3 and the housing 1.

[0255] In some embodiments of this application,

[0256] like Figure 8 , Figure 9 , Figure 13 , Figure 14 , Figure 15 , Figure 17 As shown, under the constraints of the aforementioned guide part 8 and the first shaft 5, and the guide part 7 and the second shaft 6, the opening process of the door 3 has a second stage. The second stage is as follows:

[0257] In some embodiments of this application, the guide trajectory line S includes a first guide point P1 near the sidewall of the first body and a second guide point P2 located on the side of the first guide point P1 away from the sidewall of the first body.

[0258] The second guide point P2 is located on the side of the plane where the first guide point P1 is located, close to the pick-up and drop-off port.

[0259] The guide trajectory line S extends from the first guide point P1 in a direction away from the side wall of the first body and close to the plane where the pick-up and drop-off port is located to the second guide point P2.

[0260] The opening angle of door 3 is At that time, the second central axis P is located at the first guide point P1 of the guide trajectory line S.

[0261] The opening angle of door 3 is At that time, the second central axis P is located at the second guide point P2 on the guide trajectory line S. The second guide point P2 is located on the side of the first guide point P1 that is away from the side wall of the first body and close to the plane where the pick-up and drop-off port is located.

[0262] Door body 3 is composed of Open to During the process, the second central axis P moves from the first guide point P1 to the second guide point P2 relative to the guide trajectory line S (box 1 or hinge plate 4).

[0263] Door body 3 is composed of Open to During the process, the second central axis P moves relative to the guide trajectory line S (box 1 or hinge plate 4) away from the side wall of the first body and closer to the plane where the pick-and-place port is located. That is, the second axis 6 moves relative to the guide part 8 away from the side wall of the first body and closer to the plane where the pick-and-place port is located.

[0264] Door body 3 is composed of Open to During the process, the first central axis Q moves relative to the guide trajectory line F (door body 3) towards the side wall 33 and away from the front wall 31. That is, the first axis 5 moves relative to the guide part 8 towards the side wall 33 and away from the front wall 31.

[0265] The opening angle of door 3 is At that time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the first guide position K1 relative to the box 1; the second guide point J of the guide trajectory line F is located at the second guide point J1 relative to the box 1.

[0266] The opening angle of door 3 is At that time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the second guide position K2 relative to the housing 1; the second guide point J of the guide trajectory line F is located at the second guide point J2 relative to the housing 1. The second guide position K2 is located on the side of the first guide position K1 that is closer to the side wall of the first body and farther from the plane where the pick-and-place port is located. The second guide point J2 is located on the side of the second guide point J1 that is farther from the side wall of the first body and closer to the plane where the pick-and-place port is located.

[0267] Door body 3 is composed of Open to During the process, the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4). The door 3 is constructed by... Open to During the process, the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q, while the second guide point J gradually moves closer to the first central axis Q. In the above door body 3, ... Open to During the process, the first guide point K moves towards the side of the first body that is closer to the side wall and away from the plane where the pick-up and put-out port is located, and the second guide point J moves away from the side wall of the first body and closer to the plane where the pick-up and put-out port is located.

[0268] Door body 3 is composed of Open to During the process, the second central axis P gradually approaches the first central axis Q.

[0269] The opening angle of door 3 is At that time, the center point I of the axis is located at the first midpoint I1 relative to the box 1.

[0270] The opening angle of door 3 is At that time, the center point I of the axis is located at the second midpoint I2 relative to the box 1.

[0271] In some embodiments of this application, the second midpoint I2 is located on the side of the first midpoint I1 away from the sidewall of the first body.

[0272] Door body 3 is composed of Open to During the process, the center point I of the axis moves away from the side wall of the first body relative to the box 1.

[0273] In some embodiments of this application, the door body 3 is composed of... Open to During the process, displacement in the first direction The door 3 has a tendency to move inward to compensate for the displacement of the first side edge W caused by the simple rotation of the door 3, so as to avoid the first side edge W from colliding with the cabinet 2 and causing the door 3 to be unable to continue to open; in addition, the door 3 moves inward to reduce the limitation of the space defined by the cabinet 2 on the maximum angle that the door 3 can open, so that the door 3 of the refrigerator 100 placed in the cabinet 2 can open at a larger angle, making it more convenient for users to take out and put in items.

[0274] In some embodiments of this application, the second midpoint I2 is located on the side of the first midpoint I1 closer to the plane where the pick-up and drop-off port is located. The door body 3 is composed of... Open to During the process, the center point I of the axis moves relative to the box 1 towards the side of the plane where the pick-up and drop-off port is located.

[0275] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the second direction Door 3 has a tendency to move backward.

[0276] In some embodiments of this application, the second midpoint I2 is located on the side of the first midpoint I1 that is away from the sidewall of the first body and close to the plane where the pick-up and drop-off port is located. The door body 3 is composed of Open to During the process, the center point I of the axis moves relative to the box 1 to the side away from the side wall of the first body and closer to the plane where the pick-up and drop-off port is located.

[0277] In some embodiments of this application, with the housing 1 (hinge plate 4) as a reference, the door 3 is composed of... Open to During the process, displacement in the first direction 0, displacement in the second direction Door body 3 is composed of Open to During the process, the door 3, while rotating to open the pick-up and drop-off port, also tends to move inward and backward.

[0278] In some embodiments of this application, the door body 3 is composed of... Open to During the process, That is, door body 3 is composed of Open to During the process, the translational movement of the door 3 is mainly inward, mainly to compensate for the displacement of the first side edge W caused by the simple rotation of the door 3, effectively avoiding interference between the first side edge W and the cabinet 2; at the same time, it effectively reduces the limitation of the space defined by the cabinet 2 on the maximum angle that the door 3 can open within it, so that the door 3 can be opened to a larger angle within the space defined by the cabinet 2.

[0279] In some embodiments of this application, the door body 3 is composed of... Open to The magnitude of the second direction displacement during the process Not greater than 3 gates Open to The magnitude of the second direction displacement during the process That is, door body 3 is composed of Open to The amount of backward displacement during the process is no greater than Open to The amount of forward displacement during the process. The above settings cause door 3 to move forward by... Open to During the process, the opening angle relative to door 3 is The state has an overall inward and forward translational displacement to compensate for the outward displacement of the first side edge W caused by the simple rotation of the door 3, effectively avoiding interference between the first side edge W and the cabinet 2; at the same time, it efficiently reduces the limitation of the space defined by the cabinet 2 on the maximum angle that the door 3 can open within it.

[0280] In some embodiments of this application, the refrigerator includes a locking assembly. The locking assembly includes a first mating part and a second mating part that cooperate with each other to lock and unlock the door 3 and the cabinet 1. The first mating part is located on the cabinet 1 near the lower end of the door 3, and the second mating part is located at the lower end of the door 3 to cooperate with the first mating part.

[0281] In some embodiments of this application, the first mating part is located on the side of the first hinge member away from the side wall of the first body. The second mating part is located on the side of the second hinge member away from the door side wall 33. The second mating part is used to cooperate with the first mating part to lock and unlock the door 3 and the housing 1.

[0282] In some embodiments of this application, the locking process between the door 3 and the housing 1 is as follows:

[0283] When the door 3 is closed from the open state, the door 3 gradually closes. As the door 3 rotates to close, the second mating part gradually approaches the first mating part.

[0284] When door 3 is closed to angle G B0 At this time, the second mating part comes into contact with the first mating part. As the door 3 continues to close, the first and second mating parts interact, causing the second mating part to undergo elastic deformation. Under the combined action of external force and the force exerted by the first mating part, the second and first mating parts gradually approach each other, and the amount of elastic deformation of the second mating part gradually increases.

[0285] When door 3 is closed to angle G B2 At that time, the elastic deformation of the second mating part reaches the maximum deformation during the closing process of the door body 3.

[0286] When door 3 is closed, angle G is reached. B2 Then, it continues to move in the closing direction. The elastic energy stored in the elastic deformation of the second mating part is released, and the second mating part returns to the relaxed state, driving the door 3 to automatically close in place. Once the door 3 reaches the closed state, the second mating part locks with the first mating part, realizing the locking of the door 3 and the box 1.

[0287] Above, G B0 >G B2 .

[0288] In summary, door 3 is determined by angle G. B0 Close to angle G B2 During the process, the amount of elastic deformation of the second mating part continuously increases.

[0289] When door 3 is closed to angle G B2 At that time, the elastic deformation of the second mating part reaches the maximum deformation during the closing process of the door body 3.

[0290] At angle G in door body 3 B2 During the process of closing, the elastic force of the second mating part is released, and the door 3 closes automatically.

[0291] That is, under the structural arrangement of the first mating part and the second mating part, the door body 3 is in the position of angle G B2 During the process of closing, door 3 has the characteristic of automatic closing. With the locking component set, door 3 can automatically close to the position to ensure a sealed fit between door 3 and housing 1, preventing cold air leakage.

[0292] In some embodiments of this application, the unlocking process between the door 3 and the box 1 is as follows:

[0293] When door 3 is opened from the closed state (or when door 3 is opened from angle G0), door 3 gradually opens. As door 3 rotates open, the second mating part interacts with the first mating part, and the second mating part undergoes elastic deformation.

[0294] As the door 3 continues to open, the elastic deformation of the second mating part gradually increases. During the continuous elastic deformation of the second mating part, a large external force needs to be applied to keep the door opening and to make the first and second mating parts separate.

[0295] When door 3 is opened to angle G B1 At that time, the elastic deformation of the second mating part reaches the maximum deformation during the opening process of the door 3.

[0296] When door 3 opens to angle G B1 Then, it continues to move in the opening direction, and the elastic energy stored in the elastic deformation of the second mating part is released, and the second mating part returns to its relaxed state. The second mating part separates from the first mating part, and the door 3 separates from the box 1.

[0297] In some embodiments of this application, when the door 3 is closed to angle G0, the second mating part locks with the first mating part.

[0298] When the door 3 is opened at angle G0, the first mating part and the second mating part interact with each other, and the second mating part undergoes elastic deformation.

[0299] When the door is opened to angle G B1 Afterwards, the elastic energy stored in the second mating part is released by elastic deformation.

[0300] That is, door 3 opens from angle G0 to angle G B1 During the process, the amount of elastic deformation of the second mating part continuously increases. When the door 3 opens to angle G... B1 At that time, the elastic deformation of the second mating part reaches the maximum deformation of the door 3 during the closing process. When the door 3 is at angle G... B1 As the opening process continues, the elastic force of the second mating part is released.

[0301] In some embodiments of this application, G B2 =G B1 .

[0302] In some embodiments of this application, the second mating part is located on the side of the second shaft 6 and the guide part 8 away from the door sidewall 33. The second mating part is configured as a locking hook. Specifically, the locking hook first extends away from the door sidewall 33, and then bends towards the side closer to the door rear wall 32 and the door sidewall 33, with the opening of the locking hook facing the door sidewall 33. The free end of the locking hook is located on the side closer to the door rear wall 32.

[0303] In some embodiments of this application, the first mating part is located on the side of the hinge plate 4 away from the side wall of the first body. The first mating part is provided as a stop. The stop has a hook gap on the side near the housing 1.

[0304] When the door 3 is closed (or G0), the free end of the locking hook is accommodated in the hook gap, and the stop is located inside the locking hook. The locking hook on the door 3 hooks onto the stop on the hinge plate 4, thereby locking the door 3 and the cabinet 1 together, preventing cold air leakage due to incomplete closure of the door 3, which would affect the refrigeration / freezing effect of the refrigerator 100. When the door 3 is opened, the locking hook deforms under force, overcoming the obstruction of the stop, and thus disengaging from the stop, thereby unlocking the door 3 and the cabinet 1.

[0305] When door 3 is opened from the closed state (or G0), it gradually opens under the action of external force. As door 3 rotates open, the free end of the locking hook interacts with the stop, causing the locking hook to undergo elastic deformation.

[0306] Then, under the action of external force, the door 3 continues to open. The stop and the lock hook interact with each other, and the lock hook undergoes elastic deformation. Under the combined action of external force and the force of the stop, the lock hook gradually disengages from the hook gap (at the same time, the stop disengages from the lock hook).

[0307] When door 3 is opened to angle G B1 At that time, the elastic deformation of the lock hook reaches the maximum deformation during the closing process of the door body 3.

[0308] When door 3 opens to angle G B1 As the door continues to open, the elastic energy stored in the elastic deformation of the lock hook is gradually released, the lock hook returns to a relaxed state, and the free end of the lock hook further disengages from the hook gap, the lock hook separates from the stop part, and the door body 3 separates from the box body 1.

[0309] In some embodiments of this application, during the process of the first mating part and the second mating part being unlocked from a locked state and the elastic deformation of the second mating part continuously increasing, the displacement in the first direction... Second directional displacement As described above, during the unlocking of the first and second mating parts and the continuous increase of the elastic deformation of the second mating part, the door 3 tends to move inward and backward, which accelerates the separation of the first and second mating parts, reduces the force of the first mating part on the second mating part, reduces the elastic deformation of the second mating part, facilitates the unlocking of the first and second mating parts, and is conducive to the unlocking of the door and the box.

[0310] In some embodiments of this application, as the first mating part and the second mating part unlock from the locked state and the elastic deformation of the second mating part continuously increases, the central point I of the axis moves towards the side closer to the plane where the second body sidewall and the pick-and-place opening are located. As the first and second mating parts unlock and the elastic deformation of the second mating part continuously increases, the door 3 tends to move inward and backward, accelerating the separation of the first and second mating parts, reducing the force exerted by the first mating part on the second mating part, reducing the elastic deformation of the second mating part, facilitating the unlocking of the first and second mating parts, and aiding in the unlocking of the door and the housing.

[0311] It should be noted that the process of the first mating part and the second mating part being unlocked from the locked state and the elastic deformation of the second mating part continuously increasing includes the moment when the elastic deformation of the second mating part reaches its maximum.

[0312] In some embodiments of this application, the door 3 is opened by the first mating part and the second mating part in a locked state. As the door 3 is opened, the second mating part undergoes elastic deformation. During the process of the elastic energy stored in the elastic deformation of the second mating part being gradually released, the second shaft 6 moves relative to the guide part 7 to the position where its distance from the take-up and put-down opening is the largest in a plane.

[0313] It should be noted that the elastic energy stored in the elastic deformation of the second mating part is gradually released during the process, including the moment when the elastic deformation of the second mating part reaches its maximum.

[0314] In the process of unlocking the first and second mating parts, after the elastic deformation of the second mating part reaches its maximum, the interaction force between the first and second mating parts decreases rapidly, and the required external force also decreases rapidly. However, the external force applied by the user cannot decrease rapidly, or the inertial force of the door opening still exists, causing the relative speed of the first and second mating parts to increase rapidly. At this time, the second shaft 6 moves relative to the guide part 7 to the position where its distance from the retrieval port is at its maximum. Since the guide trajectory line S protrudes towards the side away from the plane where the retrieval port is located, the movement of the second shaft 6 relative to the guide part 7 towards or away from the side wall of the first body is subject to resistance. The second shaft 6, located at the position where the distance from the retrieval port is at its maximum on the guide part 7, is in a relatively stable state relative to the guide part 7, and the movement of the door 3 relative to the box 1 is in a stable state, so that the unlocking process of the first and second mating parts is more stable and smooth.

[0315] In some embodiments of this application, when the door 3 is closed to angle G0, the second mating part locks with the first mating part.

[0316] When the door 3 is opened at angle G0, the first mating part and the second mating part interact with each other, and the second mating part undergoes elastic deformation.

[0317] When door 3 is opened to angle G B1 Then, the elastic energy stored in the second mating part is released by elastic deformation.

[0318] When the door 3 is opened from angle G0 to angle G1, the second shaft 6 moves relative to the guide part 7 toward the side wall of the first body and away from the pick-up and put-out opening;

[0319] When the door 3 opens from angle G1 to angle G2, the second shaft 6 moves relative to the guide part 7 towards the side closer to the plane where the first body sidewall and the pick-up / drop-off port are located; wherein, G0 < G B1 <G1<G2, or G0<G1<G B1 <G2;

[0320] Among them, G1 and G B1 The absolute value of the difference is denoted as |G1-G B1 |,0°≤|G1-G B1 |≤3°. When the opening angle of the door 3 is G1, the second central axis P is located at the first guide point P1, which is the furthest from the plane of the retrieval opening on the guide trajectory line S. Correspondingly, the second axis 6 is located at the point of maximum distance from the plane of the retrieval opening on the guide part 7. Since the guide trajectory line S protrudes towards the side away from the plane of the retrieval opening, the second axis 6 experiences resistance when moving relative to the guide part 7 towards or away from the side wall of the first body. The second axis 6, located at the point of maximum distance from the plane of the retrieval opening on the guide part 7, is in a relatively stable state relative to the guide part 7, and the movement of the door 3 relative to the box 1 is in a stable state.

[0321] When door 3 opens, a significant external force is required to unlock the first and second mating parts, causing the second mating part to elastically deform under the influence of the first mating part. After the elastic deformation of the second mating part reaches its maximum, the interaction force between the first and second mating parts decreases rapidly, and the required external force also decreases rapidly. However, if the external force applied by the user cannot decrease rapidly, or if the inertial force of door 3 still exists, the relative speed between the first and second mating parts increases rapidly. This leads to instability in the unlocking process of the first and second mating parts, resulting in unstable door 3 opening.

[0322] Above 0°≤|G1-G B1 The setting of ≤3° ensures that when the first mating part and the second mating part are unlocked, the second shaft 6 maintains a stable movement relative to the guide part 7, making the unlocking process of the first mating part and the second mating part more stable and smooth.

[0323] |G1-G B1 |>3°, the maximum deformation angle G when the first mating part and the second mating part are unlocked B1The difference between the second shaft 6 and the stable angle G1 relative to the guide part 7 is too large. The unlocking process of the first mating part and the second mating part cannot effectively correspond to the process of the second shaft 6 maintaining stable movement relative to the guide part 7. The cooperation between the second shaft 6 and the guide part 7 cannot play a role in stabilizing the unlocking process of the first mating part and the second mating part.

[0324] In some embodiments of this application,

[0325] In some embodiments of this application, the second guide point P2 is the second limit guide point P2'. That is, when the door 3 is opened to... At that time, the second central axis P is located at the position where the distance between the guide trajectory line S and the side wall of the first body is the greatest (second limit guide point P2` / second guide point P2).

[0326] In some embodiments of this application, the second limit guide point P2' is located on the side of the second guide point P2 that is away from the sidewall of the first body and close to the plane where the pick-up and drop-off port is located. That is, the door 3 is opened to... At that time, the position of the second central axis P relative to the guide trajectory line S is at a certain distance from the second limit guide point P2'. Correspondingly, the door 3 opens to... At this time, the second shaft 6 is located at a position of the guide portion 7 away from the side wall of the first body, and there is a gap between the second shaft 6 and the end of the guide portion 7 away from the side wall of the first body. When the guide portion 7 is configured as a guide groove, the door 3 opens to... At the same time, there is a gap between the second shaft 6 and the end of the guide groove away from the side wall of the first body. The above arrangement ensures that the second shaft 6 does not collide with the end of the guide part 7 away from the side wall of the first body during the opening of the door body 3, so as to avoid the impact between the second shaft 6 and the end of the guide part 7 away from the side wall of the first body and avoid damage to the second shaft 6.

[0327] In some embodiments of this application,

[0328] like Figure 9 , Figure 10 , Figure 13 , Figure 14 , Figure 15 , Figure 18 As shown, under the constraints of the aforementioned guide part 8 and the first shaft 5, and the guide part 7 and the second shaft 6, the opening process of the door 3 has a third stage. The third stage is as follows:

[0329] In some embodiments of this application, the guide trajectory line S includes a second guide point P2 and a third guide point P3 located on the side of the second guide point P2 near the sidewall of the first body.

[0330] The third guide point P3 is located on the side of the plane away from the second guide point P2, away from the pick-up and drop-off port.

[0331] The guide trajectory line S extends from the second guide point P2 toward the plane that is close to the side wall of the first body and away from the pick-up and drop-off port to the third guide point P3.

[0332] In some embodiments of this application, in conjunction with the setup of the first and second stages, the guide trajectory line S extends from the starting guide point P0 in a direction away from the side wall of the first body and the plane where the pick-and-place port is located to the first guide point P1, and then extends in a direction away from the side wall of the first body and closer to the plane where the pick-and-place port is located to the second guide point P2. During the extension process of the guide trajectory line S, the guide trajectory line S passes through the third guide point P3. That is, the third guide point P3 is located on the guide trajectory line S and is located on the side of the second guide point P2 closer to the side wall of the first body.

[0333] In some embodiments of this application, the third guide point P3 is located on the trajectory segment of the guide trajectory line S extending from the first guide point P1 to the second guide point P2.

[0334] In some embodiments of this application, the third guide point P3 is located on the side of the first guide point P1 that is away from the sidewall of the first body and close to the plane where the pick-up and drop-off port is located.

[0335] In some embodiments of this application, the third guide point P3 coincides with the first guide point P1. That is, the opening angle of the door 3 is... At that time, the second shaft 6 moves relative to the guide part 7 to the door body 3 at an opening angle of 100°. The position of the second shaft 6 relative to the guide part 7.

[0336] The opening angle of door 3 is At that time, the second central axis P is located at the second guide point P2 of the guide trajectory line S.

[0337] The opening angle of door 3 is At that time, the second central axis P is located at the third guide point P3 on the guide trajectory line S. The third guide point P3 is located on the side of the second guide point P2 that is close to the side wall of the first body and away from the plane where the pick-up and drop-off port is located.

[0338] Door body 3 is composed of Open to During the process, the second central axis P moves from the second guide point P2 to the third guide point P3 relative to the guide trajectory line S (box 1 or hinge plate 4).

[0339] Door body 3 is composed of Open to During the process, the second central axis P moves relative to the guide trajectory line S (box 1 or hinge plate 4) towards the side closer to the side wall of the first body and away from the plane where the pick-and-place port is located. That is, the second axis 6 moves relative to the guide part 8 towards the side wall of the first body and away from the plane where the pick-and-place port is located.

[0340] Door body 3 is composed of Open to During the process, the first central axis Q moves relative to the guide trajectory line F (door body 3) towards the side wall 33 and away from the front wall 31. That is, the first axis 5 moves relative to the guide part 8 towards the side wall 33 and away from the front wall 31.

[0341] The opening angle of door 3 is At that time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the second guide position K2 relative to the box 1; the second guide point J of the guide trajectory line F is located at the second guide point J2 relative to the box 1.

[0342] The opening angle of door 3 is At that time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the third guide position K3 relative to the housing 1; the second guide point J of the guide trajectory line F is located at the third guide point J3 relative to the housing 1. The third guide position K3 is located on the side of the second guide position K2 that is closer to the side wall of the first body and farther from the plane where the pick-and-place port is located. The third guide point J3 is located on the side of the second guide point J2 that is farther from the side wall of the first body and the plane where the pick-and-place port is located.

[0343] Door body 3 is composed of Open to During the process, the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4). The door 3 is constructed by... Open to During the process, the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q, while the second guide point J gradually moves closer to the first central axis Q. In the above door body 3, ... Open to During the process, the first guide point K moves towards the side wall of the first body and away from the plane where the pick-up and put-out port is located, and the second guide point J moves away from the side wall of the first body and the plane where the pick-up and put-out port is located.

[0344] Door body 3 is composed of Open to During the process, the second central axis P gradually moves away from the first central axis Q.

[0345] The opening angle of door 3 is At that time, the center point I of the axis is located at the second midpoint I2 relative to the box 1.

[0346] The opening angle of door 3 is At that time, the center point I of the axis is located at the third midpoint I3 relative to the box 1.

[0347] In some embodiments of this application, the third midpoint I3 is located on the side of the second midpoint I2 near the sidewall of the first body. The door body 3 is composed of... Open to During the process, the center point I of the axis moves relative to the box 1 towards the side wall of the first body.

[0348] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the first direction The door 3 has a tendency to move outward to reduce the obstruction of the access opening by the door 3, increase the utilization rate of the drawer in the width direction of the receiving cavity, and not affect the drawer being pulled out of the receiving cavity.

[0349] In some embodiments of this application, the third midpoint I3 is located on the side of the second midpoint I2 away from the plane where the pick-up and drop-off port is located. The door body 3 is composed of... Open to During the process, the center point I of the axis moves away from the plane where the pick-up and drop-off port is located relative to the box 1.

[0350] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the second direction The door 3 has a tendency to move forward so that it moves away from the space defined by the cabinet 2, thereby reducing the limitation imposed by the space defined by the cabinet 2 on the maximum angle at which the door 3 can be opened.

[0351] In some embodiments of this application, the third midpoint I3 is located on the side of the second midpoint I2 that is closer to the sidewall of the first body and farther from the plane where the pick-up and drop-off port is located. The door body 3 is composed of Open to During the process, the center point I of the axis moves relative to the box 1 towards the side closer to the side wall of the first body and away from the plane where the pick-up and drop-off port is located.

[0352] In some embodiments of this application, with the housing 1 (hinge plate 4) as a reference, the door 3 is composed of... Open to During the process, displacement in the first direction Second directional displacement Door body 3 is composed of Open to During the process, the door 3, while rotating to open the pick-up and drop-off port, also tends to move outward and forward.

[0353] In some embodiments of this application, the door body 3 is composed of... Open to During the process, That is, door body 3 is composed of Open to During the process, the translational movement of the door 3 is mainly forward movement, with outward movement as a secondary movement, so as to efficiently reduce the limitation of the space defined by the cabinet 2 on the maximum angle that the door 3 can open.

[0354] In some embodiments of this application, the door body 3 is composed of... Open to During the process Not greater than 3 gates Open to During the process That is, door body 3 is composed of Open to During the process, the door opens at angle 3. For reference, door 3 is always in an inward sliding state, so as to avoid interference between door 3 and cabinet 2 and effectively reduce the limitation of the space defined by cabinet 2 on the maximum opening angle of door 3, which is conducive to opening door 3 to a larger angle and making it convenient for users to take out and put in items.

[0355] In some embodiments of this application, the door body 3 is composed of... Open to During the process, That is, door body 3 is composed of Open to During the process, the translational movement of door 3 is mainly outward movement, with forward movement as a secondary movement. The outward movement of door 3 can reduce the obstruction of the access opening by door 3, increase the utilization rate of the drawer in the width direction of the receiving cavity, and does not affect the drawer being pulled out of the receiving cavity.

[0356] In some embodiments of this application, the door body 3 is composed of... Open to During the process, And door body 3 is composed of Open to The magnitude of the first direction displacement during the process Not greater than 3 gates Open to The magnitude of the first direction displacement during the process The setting, on the one hand, makes door 3 consist of Open to During the process, the door opens at angle 3. For reference, door 3 is always in an inward translational state to compensate for the outward displacement of the first side edge W caused by the simple rotation of door 3, thus avoiding interference between door 3 and cabinet 2. On the other hand, door 3 is composed of Open to During the process, the translational movement of the door 3 is mainly outward, which can reduce the obstruction of the door 3 on the pick-up and put-out opening, increase the utilization rate of the drawer in the width direction of the receiving cavity, and not affect the drawer being pulled out of the receiving cavity.

[0357] In some embodiments of this application,

[0358] like Figure 10 , Figure 11 , Figure 13 , Figure 14 , Figure 15 , Figure 19 As shown, under the constraints of the aforementioned guide part 8 and the first shaft 5, and the guide part 7 and the second shaft 6, the opening process of the door 3 has a fourth stage. The fourth stage is as follows:

[0359] In some embodiments of this application, the guide trajectory line S includes a third guide point P3 and a fourth guide point P4 located on the side of the third guide point P3 near the sidewall of the first body.

[0360] The fourth guide point P4 is located on the side of the plane where the pick-up and drop-off port is located, which is close to the third guide point P3.

[0361] The guide trajectory line S extends from the third guide point P3 toward the plane close to the side wall of the first body and the pick-up / place-out port to the fourth guide point P4.

[0362] In some embodiments of this application, in conjunction with the setup of the first and second stages, the guide trajectory line S extends from the starting guide point P0 in a direction away from the side wall of the first body and the plane where the pick-and-place port is located to the first guide point P1, and then extends in a direction away from the side wall of the first body and closer to the plane where the pick-and-place port is located to the second guide point P2. During the extension process of the guide trajectory line S, the guide trajectory line S passes through the fourth guide point P4. That is, the fourth guide point P4 is located on the guide trajectory line S and is located on the side of the second guide point P2 closer to the side wall of the first body.

[0363] In some embodiments of this application, the fourth guide point P4 is located on the trajectory segment of the guide trajectory line S extending from the starting guide point P0 to the first guide point P1.

[0364] In some embodiments of this application, the fourth guide point P4 is located on the side of the starting guide point P0 away from the plane where the first body sidewall and the pick-and-place port are located.

[0365] In some embodiments of this application, the fourth guide point P4 coincides with the starting guide point P0. With the above settings, the opening angle of the door 3 is... At that time, the second shaft 6 returns to the door body 3 at an opening angle relative to the guide part 7. The position of the second shaft 6 relative to the guide part 7, the movement of the second shaft 6 relative to the guide part 7 effectively utilizes the length of the guide trajectory line S, reduces the length of the guide trajectory line S, reduces the space occupied by the guide part 7 on the hinge plate 4, and can ensure the strength of the guide part 7 and the hinge plate 4.

[0366] The opening angle of door 3 is At that time, the second central axis P is located at the third guide point P3 of the guide trajectory line S.

[0367] The opening angle of door 3 is At this time, the second central axis P is located at the fourth guide point P4 on the guide trajectory line S. The fourth guide point P4 is located on the side of the third guide point P3 near the side wall of the first body and the plane where the pick-and-place port is located.

[0368] Door body 3 is composed of Open to During the process, the second central axis P moves from the third guide point P3 to the fourth guide point P4 relative to the guide trajectory line S (box 1 or hinge plate 4).

[0369] Door body 3 is composed of Open to During the process, the second central axis P moves relative to the guide trajectory line S (box 1 or hinge plate 4) towards the side closer to the side wall of the first body and away from the plane where the pick-up and drop-off port is located. That is, the second axis 6 moves relative to the guide part 8 towards the side wall of the first body and away from the plane where the pick-up and drop-off port is located.

[0370] Door body 3 is composed of Open to During the process, the first central axis Q moves relative to the guide trajectory line F (door body 3) towards the side wall 33 and away from the front wall 31. That is, the first axis 5 moves relative to the guide part 8 towards the side wall 33 and away from the front wall 31.

[0371] In some embodiments of this application, the third guide point P3 coincides with the first guide point P1.

[0372] The opening angle of door 3 is At that time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the third guide position K3 relative to the box 1; the second guide point J of the guide trajectory line F is located at the third guide point J3 relative to the box 1.

[0373] The opening angle of door 3 is At that time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the fourth guide position K4 relative to the housing 1; the second guide point J of the guide trajectory line F is located at the fourth guide point J4 relative to the housing 1. The fourth guide position K4 is located on the side of the third guide position K3 closest to the side wall of the first body and away from the plane where the pick-and-place port is located. The fourth guide point J4 is located on the side of the third guide point J3 away from the side wall of the first body and the plane where the pick-and-place port is located.

[0374] Door body 3 is composed of Open to During the process, the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4). The door 3 is constructed by... Open to During the process, the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q, while the second guide point J gradually moves closer to the first central axis Q. In the above door body 3, ... Open to During the process, the first guide point K moves toward the side closer to the sidewall of the first body and away from the plane where the pick-up and put-out port is located, and the second guide point J moves toward the side away from the sidewall of the first body and the plane where the pick-up and put-out port is located.

[0375] Door body 3 is composed of Open to During the process, the second central axis P gradually moves away from the first central axis Q.

[0376] The opening angle of door 3 is At that time, the center point I of the axis is located at the third midpoint I3 relative to the box 1.

[0377] The opening angle of door 3 is At that time, the center point I of the axis is located at the fourth midpoint I4 relative to the box 1.

[0378] In some embodiments of this application, the fourth midpoint I4 is located on the side of the third midpoint I3 near the sidewall of the first body. The door body 3 is composed of... Open to During the process, the center point I of the axis moves relative to the box 1 towards the side wall of the first body.

[0379] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the first direction While the door 3 rotates to open the retrieval opening, it tends to move outward to further reduce the obstruction of the retrieval opening by the door 3, increase the utilization rate of the drawer in the width direction of the receiving cavity, and not affect the drawer being pulled out of the receiving cavity.

[0380] In some embodiments of this application, the fourth midpoint I4 is located on the side of the plane where the third midpoint I3 is located, closer to the loading / unloading port. The door body 3 is composed of... Open to During the process, the center point I of the axis moves relative to the box 1 towards the side of the plane where the pick-up and drop-off port is located.

[0381] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the second direction While the door 3 rotates to open the retrieval port, it tends to move backward so that the distance between the door 3 and the box 1 along the plane of the retrieval port is kept moderate, and the door 3 is prevented from moving too far away from the box 1, which would increase the gravitational torque of the door 3 and cause the door 3 to sink and tilt.

[0382] In some embodiments of this application, the fourth midpoint I4 is located on the side of the third midpoint I3 closest to the side wall of the first body and the plane where the pick-up and drop-off opening is located. The door body 3 is composed of... Open to During the process, the center point I of the axis moves relative to the box 1 towards the side closer to the first body side wall and the plane where the pick-up and drop-off port is located.

[0383] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the first direction Second directional displacement As the door 3 rotates to open the retrieval port, it tends to move outward and backward.

[0384] In some embodiments of this application, the door body 3 is composed of... Open to During the process, That is, door body 3 is composed of Open to During the process, the translational movement of the door 3 is mainly outward movement, with backward movement as a secondary movement, so as to effectively reduce the obstruction of the retrieval opening by the door 3, increase the utilization rate of the drawer in the width direction of the receiving cavity, and not affect the drawer being pulled out of the receiving cavity.

[0385] In some embodiments of this application, the door body 3 is composed of... Open to The magnitude of the first direction displacement during the process Not greater than 3 gates Open to The magnitude of the first direction displacement during the process That is, door body 3 is composed of Open to During the process, the outward displacement is no greater than 3 times that of the door body. Open to The amount of inward displacement during the process. Door 3 is composed of... Open to During the process, the door opens at angle 3. For reference, door 3 is always in an inward sliding state to effectively reduce the limitation of the space defined by cabinet 2 on the maximum angle that door 3 can open, and to avoid interference between door 3 and cabinet 2.

[0386] In some embodiments of this application, the opening angle of the door 3 is: At that time, the second central axis P is located at the fourth guide point P4 (which can be set, and the fourth guide point P4 coincides with the starting guide point P0) on the guide trajectory line S, and the first central axis Q is located at the third guide point H on the guide trajectory line F, which is the furthest from the front wall 31 of the door.

[0387] Because the guide trajectory line F extends from the first guide point K towards the side wall 33 and away from the front wall 31 to the third guide point H, and then extends from the third guide point H towards the side wall 33 and the front wall 31 to the second guide point J. The door 3 opens at an angle of... At this time, the first shaft 5 is located at the turning point position (third guide point H) of the guide part 8, and the first shaft 5 has high motion stability relative to the guide part 8.

[0388] Meanwhile, the opening angle of door 3 At that time, the second shaft 6 is located at the end of the guide section 7 near the side wall of the first body; the second shaft 6 cannot continue to move towards the side wall of the first body relative to the guide section 7, or it needs to turn to move away from the side wall of the first body, and the movement stability of the second shaft 6 relative to the guide section 7 is high.

[0389] The above describes the opening angle of door 3. At this time, the first shaft 5 is located at the turning point of the guide part 8 (third guide point H), and the second shaft 6 is located at the end of the guide part 7 near the side wall of the first body (fourth guide point P4 (starting guide point P0)), so that the rotation of the door body 3 relative to the box body 1 is stable; when no external force is applied, the door body 3 can be stably maintained in this angle state.

[0390] In some embodiments of this application,

[0391] In some embodiments of this application, The above settings allow the door 3 to rotate stably relative to the box 1 when it is opened to 90°; it also allows the door 3 to remain at 90° when no external force is applied.

[0392] Combining the third and fourth stages of the opening of door 3 above, door 3 is formed by... Open to During the process, the door 3 tends to move outward relative to the box 1, which reduces the amount of obstruction of the access opening by the door 3 when it is opened to 90°, making it easier for the drawers installed in the storage room to be pulled out of the storage room; at the same time, the small amount of obstruction of the access opening by the door 3 allows the drawers installed in the storage room to make more effective use of the width space of the storage room, increasing the width of the drawers and increasing the space utilization rate.

[0393] like Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 20 As shown, under the constraints of the aforementioned guide part 8 and the first shaft 5, and the guide part 7 and the second shaft 6, the opening process of the door 3 has a fifth stage. The fifth stage is as follows:

[0394] In some embodiments of this application, the guide trajectory line S includes a fourth guide point P4 and a fifth guide point P5 located on the side of the fourth guide point P4 away from the sidewall of the first body.

[0395] The fifth guide point P5 is located on the side of the plane away from the pick-up and drop-off port where the fourth guide point P4 is located.

[0396] In some embodiments of this application, the guide trajectory line S extends from the fourth guide point P4 in a direction away from the plane where the first body sidewall and the pick-up / place-out port are located to the fifth guide point P5.

[0397] In some embodiments of this application, the guide trajectory line S extends from the fourth guide point P4 in a direction away from the side wall of the first body and the plane where the pick-up and drop-out port is located to the first guide point P1, and then extends from the first guide point P1 in a direction away from the side wall of the first body and close to the plane where the pick-up and drop-out port is located to the fifth guide point P5.

[0398] In some embodiments of this application, in conjunction with the first and second stages, the guide trajectory line S extends from the starting guide point P0 in a direction away from the side wall of the first body and the plane where the pick-and-place port is located to the first guide point P1, and then extends in a direction away from the side wall of the first body and close to the plane where the pick-and-place port is located to the second guide point P2. During the extension of the guide trajectory line S, the guide trajectory line S passes through the fifth guide point P5. That is, the fifth guide point P5 is located on the guide trajectory line S, and the fifth guide point P5 is located on the side of the second guide point P2 closer to the side wall of the first body.

[0399] In some embodiments of this application, the fifth guide point P5 is located on the trajectory segment of the guide trajectory line S extending from the starting guide point P0 to the first guide point P1.

[0400] In some embodiments of this application, the fifth guide point P5 coincides with the first guide point P1 (and / or the third guide point P3).

[0401] The opening angle of door 3 is At that time, the second central axis P is located at the fourth guide point P4 of the guide trajectory line S.

[0402] The opening angle of door 3 is At this time, the second central axis P is located at the fifth guide point P5 on the guide trajectory line S. The fifth guide point P5 is located on the side of the fourth guide point P4 away from the plane where the first body sidewall and the pick-and-place port are located.

[0403] Door body 3 is composed of Open to During the process, the second central axis P moves from the fourth guide point P4 to the fifth guide point P5 relative to the guide trajectory line S (box 1 or hinge plate 4).

[0404] Door body 3 is composed of Open to During the process, the second central axis P moves relative to the guide trajectory line S (box 1 or hinge plate 4) to the side away from the plane where the first body sidewall and the pick-and-place port are located. That is, the second axis 6 moves relative to the guide part 8 to the side away from the plane where the first body sidewall and the pick-and-place port are located.

[0405] Door body 3 is composed of Open to During the process, the first central axis Q moves relative to the guide trajectory line F (door body 3) towards the side wall 33 and the front wall 31 of the door. That is, the first axis 5 moves relative to the guide part 8 towards the side wall 33 and the front wall 31 of the door.

[0406] The opening angle of door 3 is At that time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the fourth guide position K4 relative to the box 1; the second guide point J of the guide trajectory line F is located at the fourth guide point J4 relative to the box 1.

[0407] The opening angle of door 3 is At that time, the guide trajectory line F passes through the first central axis Q, and the first guide point K of the guide trajectory line F is located at the fifth guide position K5 relative to the housing 1; the second guide point J of the guide trajectory line F is located at the fifth guide point J5 relative to the housing 1. The fifth guide position K5 is located on the side of the fourth guide position K4 closest to the side wall of the first body and the plane where the pick-and-place port is located. The fifth guide point J5 is located on the side of the fourth guide point J4 furthest from the side wall of the first body and the plane where the pick-and-place port is located.

[0408] Door body 3 is composed of Open to During the process, the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4). The door 3 is constructed by... Open to During the process, the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q, while the second guide point J gradually moves closer to the first central axis Q. In the above door body 3, ... Open to During the process, the first guide point K moves toward the side closer to the first body sidewall and the plane where the pick-up and put-out port is located, and the second guide point J moves away from the first body sidewall and the plane where the pick-up and put-out port is located.

[0409] In some embodiments of this application, when the opening angle of the door 3 is... At that time, the second guide point J coincides with the first central axis Q. That is, when the door 3 opens to an angle of... At that time, the first shaft 5 moves to the end of the guide part 8 near the side wall 33 of the door.

[0410] Door body 3 is composed of Open to During the process, the second central axis P gradually approaches the first central axis Q.

[0411] The opening angle of door 3 is At that time, the center point I of the axis is located at the fourth midpoint I4 relative to the box 1.

[0412] The opening angle of door 3 is At that time, the center point I of the axis is located at the fifth midpoint I5 relative to the box 1.

[0413] In some embodiments of this application, the fifth midpoint I5 is located on the side of the fourth midpoint I4 away from the sidewall of the first body. The door body 3 is composed of... Open to During the process, the center point I of the axis moves away from the side wall of the first body relative to the box 1.

[0414] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the first direction The door 3 has a tendency to move inward to reduce the limitation of the space defined by the cabinet 2 on the maximum angle that the door 3 can open, thereby making it easier for the user to take out and put in items.

[0415] In some embodiments of this application, the fifth midpoint I5 is located on the side of the fourth midpoint I4 away from the plane where the pick-up and drop-off port is located. The door body 3 is composed of... Open to During the process, the center point I of the axis moves away from the plane where the pick-up and drop-off port is located relative to the box 1.

[0416] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the second direction As the door 3 rotates to open the access port, it tends to move forward, so that the door 3 can move out of the space defined by the cabinet 2, thereby reducing the limitation imposed by the space defined by the cabinet 2 on the maximum angle that the door 3 can open.

[0417] In some embodiments of this application, the fifth midpoint I5 is located on the side of the fourth midpoint I4 away from the plane where the first body sidewall and the pick-up / place-out opening are located. The door body 3 is composed of... Open to During the process, the center point I of the axis moves relative to the box 1 to the side away from the side wall of the first body and the plane where the pick-up and drop-off port is located.

[0418] Taking the box body 1 (hinged plate 4) as a reference, the door body 3 is composed of Open to During the process, displacement in the first direction Second directional displacement As the door 3 rotates to open the retrieval port, it also tends to move inward and forward.

[0419] In some embodiments of this application, the door body 3 is composed of... Open to During the process, That is, door body 3 is composed of Open to During the process, the translational movement of the door 3 is mainly inward and secondarily forward, in order to reduce the limitation of the space defined by the cabinet 2 on the maximum angle that the door 3 can open, and at the same time to prevent the door 3 from moving too far away from the cabinet 1, which would increase the gravitational torque of the door 3 and cause the door 3 to sink and tilt.

[0420] In some embodiments of this application, the door body 3 is composed of... Open to During the process, That is, door body 3 is composed of Open to During the process, the translational movement of the door 3 is mainly forward movement, with inward movement as a secondary movement, in order to reduce the limitation of the space defined by the cabinet 2 on the maximum angle that the door 3 can open within it, and at the same time limit the amount of obstruction of the door 3 on the access opening, so as to increase the utilization rate of the drawer located in the receiving cavity in the width direction of the receiving cavity, without affecting the drawer being pulled out from the receiving cavity.

[0421] In some embodiments of this application, the door body 3 is composed of... Open to The magnitude of the first direction displacement during the process Not greater than 3 gates Open to and Open to The magnitude of the first direction displacement during the process The sum of. That is, door body 3 is composed of Open to During the process, the outward displacement is no greater than 3 times that of the door body. Open to and Open to The sum of the inward displacement during the process. That is, door 3 is formed by... Open to During the process, the door opens at angle 3. For reference, door 3 is always in an inward sliding state to effectively reduce the limitation of the space defined by cabinet 2 on the maximum angle that door 3 can open, and to avoid interference between door 3 and cabinet 2.

[0422] In some embodiments of this application, the fifth guide point P5 coincides with the first guide point P1 (the third guide point P3). That is, the opening angle of the door 3 is... At this time, the second central axis P is located at the fifth guide point P5 (first guide point P1) on the guide trajectory line S, which is the furthest from the plane where the pick-up and put-out opening is located. Correspondingly, the second axis 6 is located on the guide part 7 at the point where the distance from the plane where the pick-up and put-out opening is located is the greatest. Since the guide trajectory line S protrudes to the side away from the plane where the pick-up and put-out opening is located, the movement direction of the second axis 6 relative to the guide part 7 changes. The second axis 6 moves relative to the guide part 7 towards or away from the side wall of the first body with resistance. The second axis 6 located on the guide part 7 at the point where the distance from the plane where the pick-up and put-out opening is the greatest is in a relatively stable state relative to the guide part 7, and the movement of the door body 3 relative to the box body 1 is in a stable state.

[0423] In some embodiments of this application, the opening angle of the door 3 is: At this time, the first central axis Q is located at the second guide point J on the guide trajectory line F, where the distance to the door side wall 33 is the smallest. Correspondingly, the first axis 5 cannot continue to move towards the side of the door side wall 33 relative to the guide part 8, or it needs to turn and move away from the first body side wall. The movement stability of the first axis 5 relative to the guide part 8 is high. In summary, the opening angle of the door 3 is... At this time, the second shaft 6 is located at the position with the greatest distance between the guide part 7 and the plane where the pick-up and put-out port is located, and the first shaft 5 is located at the end of the guide part 8 near the door side wall 33, so that the rotation of the door body 3 relative to the box body 1 is stable; when no external force is applied, the door body 3 can be stably maintained in this angle state.

[0424] In some embodiments of this application, the opening angle of the door 3 is: At this time, the second central axis P is located at the fifth guide point P5 (the first guide point P1) on the guide trajectory line S, which is the furthest from the plane where the pick-up and drop-off opening is located. The first central axis Q is located at the second guide point J on the guide trajectory line F, which is the furthest from the door side wall 33. Therefore, the door 3 is at the opening angle... At this time, the first shaft 5 is located at the end of the guide section 8 near the side wall 33 of the door, and the second shaft 6 is located at the turning point of the guide section 7, so that the rotation of the door body 3 relative to the box body 1 is stable; when no external force is applied, the door body 3 is stably maintained at this angle.

[0425] In some embodiments of this application, The above settings allow door 3 to open to The door 3 remains stable relative to the box 1; it can also remain stable when no external force is applied. Status. Configurable.

[0426] In some embodiments of this application, the movement of the door 3 relative to the housing 1 includes at least one of the above five stages.

[0427] In some embodiments of this application, the movement of the door 3 relative to the cabinet 1 includes all five stages mentioned above. The movement in each stage satisfies the needs of different stages; and ensures that the maximum opening angle of the door 3 within the cabinet 2 is not less than 120°, effectively reducing the limitation imposed by the space confined by the cabinet 2 on the maximum opening angle of the door 3, thereby increasing the opening angle of the door 3 within the cabinet 2 and facilitating the user's access to items.

[0428] In summary, in some embodiments of this application, the opening process of the door 3 includes a first stage, a second stage, a third stage, a fourth stage, and a fifth stage. Specifically:

[0429] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves away from the plane where the first body side wall and the pick-up and put-out port are located relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4), and the first central axis Q (first axis 5) moves towards the side closer to the door side wall 33 and away from the front wall 31 relative to the guide trajectory line F (guide part 8 / door 3).

[0430] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move inward and a tendency to move forward.

[0431] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves away from the side wall of the first body and closer to the plane where the pick-up and put-out port is located relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4), and the first central axis Q (first axis 5) moves closer to the door side wall 33 and away from the front wall 31 relative to the guide trajectory line F (guide part 8 / door body 3).

[0432] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move inward and a tendency to move backward.

[0433] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4) towards the side closer to the first body side wall and away from the plane where the pick-up and put-out port is located, and the first central axis Q (first axis 5) moves relative to the guide trajectory line F (guide part 8 / door 3) towards the side closer to the door side wall 33 and away from the front wall 31 of the door.

[0434] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move outward and door 3 has a tendency to move forward.

[0435] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4) towards the side closer to the first body side wall and the plane where the pick-up and put-out port is located, and the first central axis Q (first axis 5) moves relative to the guide trajectory line F (guide part 8 / door 3) towards the side closer to the door side wall 33 and away from the front wall 31 of the door.

[0436] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move outward and door 3 has a tendency to move backward.

[0437] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves away from the plane where the first body side wall and the pick-up and put-out port are located relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4), and the first central axis Q (first axis 5) moves closer to the door side wall 33 and the door front wall 31 relative to the guide trajectory line F (guide part 8 / door 3).

[0438] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move inward and a tendency to move forward.

[0439] In summary, in some embodiments of this application, the opening process of the door 3 includes a first stage, a second stage, a third stage, a fourth stage, and a fifth stage. Specifically:

[0440] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves away from the plane containing the first body sidewall and the pick-and-place port relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4); the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4). The first guide point K of the guide trajectory line F gradually moves away from the first central axis Q from its position coinciding with the first central axis Q, while the second guide point J gradually moves closer to the first central axis Q. Specifically, the first guide point K moves away from the plane containing the first body sidewall and the pick-and-place port, while the second guide point J moves away from the first body sidewall and closer to the plane containing the pick-and-place port. That is,

[0441] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move inward and a tendency to move forward.

[0442] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4) away from the side wall of the first body and closer to the plane where the pick-and-place port is located; the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4), wherein the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q, and the second guide point J gradually moves closer to the first central axis Q. Specifically, the first guide point K moves towards the side wall of the first body and away from the plane where the pick-and-place port is located, and the second guide point J moves towards the side wall of the first body and closer to the plane where the pick-and-place port is located.

[0443] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move inward and a tendency to move backward.

[0444] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4) towards the side closer to the first body sidewall and away from the plane where the pick-up and put-out port is located; the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4), wherein the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q, and the second guide point J gradually moves closer to the first central axis Q. Specifically, the first guide point K moves towards the side closer to the first body sidewall and away from the plane where the pick-up and put-out port is located, and the second guide point J moves away from both the first body sidewall and the plane where the pick-up and put-out port is located.

[0445] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move outward and door 3 has a tendency to move forward.

[0446] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4) towards the side closer to the first body sidewall and the plane where the pick-and-place port is located; the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4), wherein the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q, and the second guide point J gradually moves closer to the first central axis Q. Specifically, the first guide point K moves towards the side closer to the first body sidewall and away from the plane where the pick-and-place port is located, and the second guide point J moves towards the side away from the first body sidewall and the plane where the pick-and-place port is located.

[0447] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move outward and door 3 has a tendency to move backward.

[0448] Door body 3 is composed of Open to During the process, the second central axis P (second axis 6) moves away from the plane containing the first body sidewall and the pick-and-place port relative to the guide trajectory line S (guide part 7 / box 1 / hinge plate 4); the guide trajectory line F passes through the first central axis Q and moves relative to the first central axis Q (box 1 or hinge plate 4), wherein the first guide point K of the guide trajectory line F gradually moves away from the first central axis Q, and the second guide point J gradually moves closer to the first central axis Q. Specifically, the first guide point K moves closer to the plane containing the first body sidewall and the pick-and-place port, while the second guide point J moves away from the plane containing the first body sidewall and the pick-and-place port.

[0449] In some embodiments of this application, the door body 3 is composed of... Open to During the process, door 3 has a tendency to move inward and a tendency to move forward.

[0450] In summary, the guide section 7 has a first guide end that is far from the door sidewall and a second guide end that is close to the door sidewall.

[0451] During the process of opening door 3 from G0 to G5, the first guide end gradually moves away from the first axis, and the second guide end gradually moves closer to the first axis.

[0452] During the process of opening the door 3 from G0 to G1, the second shaft moves relative to the guide portion to the side away from the first body sidewall and the plane where the pick-and-place opening is located; the first guide end moves to the side away from the first body sidewall and the plane where the pick-and-place opening is located, and the second guide end moves to the side away from the first body sidewall and closer to the plane where the pick-and-place opening is located.

[0453] During the process of the door 3 being opened from G1 to G2, the second shaft moves relative to the guide portion away from the side wall of the first body and closer to the plane where the pick-up and put-out port is located; the first guide end moves closer to the side wall of the first body and away from the plane where the pick-up and put-out port is located, and the second guide end moves away from the side wall of the first body and closer to the plane where the pick-up and put-out port is located.

[0454] During the process of opening the door 3 from G2 to G3, the second shaft moves relative to the guide portion toward the side wall of the first body and away from the plane where the pick-up and put-out port is located; the first guide end moves toward the side wall of the first body and away from the plane where the pick-up and put-out port is located, and the second guide end moves toward the side wall of the first body and away from the plane where the pick-up and put-out port is located.

[0455] During the process of opening the door 3 from G3 to G4, the second shaft moves relative to the guide portion toward the side closer to the first body sidewall and the plane where the pick-up and put-out port is located; the first guide end moves toward the side closer to the first body sidewall and away from the plane where the pick-up and put-out port is located, and the second guide end moves toward the side away from the first body sidewall and the plane where the pick-up and put-out port is located.

[0456] During the process of opening the door 3 from G4 to G5, the second shaft moves relative to the guide portion away from the plane where the first body sidewall and the pick-up / placement port are located; the first guide end moves towards the plane where the first body sidewall and the pick-up / placement port are located, and the second guide end moves away from the plane where the first body sidewall and the pick-up / placement port are located; wherein, G0 < G1 < G2 < G3 < G4 < G5.

[0457] The above-mentioned movement at each stage meets the needs of different stages; the maximum opening angle of the door 3 inside the cabinet 2 is not less than 120°, effectively reducing the limitation of the space restricted by the cabinet 2 on the maximum opening angle of the door 3, so as to increase the opening angle of the door 3 inside the cabinet 2, making it convenient for users to take out and put in items.

[0458] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0459] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, include: The housing defines multiple receiving cavities with openings for taking out and putting in. The enclosure has a first body sidewall and a second body sidewall that are arranged opposite to each other; A door, connected to the housing, is used to close or open the receiving cavity; the door has: The front wall of the door is away from the box when the door is closed; The door sidewall is connected to the front wall of the door and is located on the side of the door body away from the second body sidewall when it is in the closed state; A hinge assembly connects the door to the housing, allowing the door to rotate relative to the housing; the hinge assembly includes: A first hinge element is disposed on the housing and close to the side wall of the first body; the first hinge element includes: A hinge plate, which is connected to the housing; A first shaft and a guide portion are disposed on the hinge plate; A second hinge element is disposed on the door body; the second hinge element includes: The second shaft cooperates with the guide portion; A guide section that mates with the first shaft; The movement trajectory of the central axis of the second axis relative to the guide part is denoted as the guide trajectory line S. The guide trajectory line S is an arc and protrudes to the side away from the plane where the pick-up and put-out port is located. The central axis of the first axis is denoted as the first central axis Q; the center of the arc-shaped guide trajectory line S is denoted as the guide center O; the point at which the guide trajectory line S is at the maximum distance from the plane where the pick-up and drop-off port is located is denoted as the first guide point P1; In the projection of the plane containing the top wall of the box, in the direction perpendicular to the plane containing the loading and unloading port, the distance between the first central axis Q and the guide center O is denoted as |QO|1, and the distance between the first central axis Q and the first guide point P1 is denoted as |QP1|1. Where 3≤|QO|1:|QP1|1。 2. The refrigerator according to claim 1, characterized in that, During the opening process of the door, when the opening angle of the door is G1`, the distance between the central axis of the second axis and the side wall of the first body is the smallest; at this time, the central axis of the second axis is located at the first extreme guide point P1` of the guide trajectory line S; When the door opens at an angle of G2', the distance between the central axis of the second axis and the side wall of the first body is at its maximum; at this time, the central axis of the second axis is located at the second limit guide point P2' of the guide trajectory line S. Where 20°≤∠P1`OP2`≤30°.

3. The refrigerator according to claim 2, characterized in that, in, 1.6≤∠P1`OP1: ∠P2`OP1≤2.

4. The refrigerator according to claim 1, 2, or 3, characterized in that, The first axis is located on the side of the guide portion away from the side wall of the first body, and the second axis is located on the side of the guide portion closer to the front wall of the door.

5. The refrigerator according to claim 4, characterized in that, The trajectory of the central axis of the first axis relative to the guide part is denoted as the guide trajectory line F. The guide trajectory line F extends from the end away from the door side wall to the side that is close to the door side wall and away from the door front wall, and then extends to the side that is close to both the door side wall and the door front wall.

6. The refrigerator according to claim 5, characterized in that, The point at which the guide trajectory line F is furthest from the front wall of the door is denoted as the third guide point H; In a plane projection parallel to the top wall of the enclosure, along a direction perpendicular to the side wall of the door, the distance between the central axis of the second axis and the third guide point H is denoted as |PH|2; where 0mm≤|PH|2≤5mm.

7. The refrigerator according to claim 6, characterized in that, The point on the guide trajectory line F that is furthest from the side wall of the door and has the smallest distance from the front wall of the door is denoted as the first guide point K; In a plane projection parallel to the top wall of the box, the distance between the central axis of the second axis and the first guide point K along the direction perpendicular to the front wall of the door is denoted as |PK|1; where 0mm≤|PK|1≤3mm.

8. The refrigerator according to claim 1, 2, 6, or 7, characterized in that, The guide portion includes a first guide end away from the door sidewall and a second guide end close to the door sidewall; During the process of the door opening from G0 to G5, the first guide end gradually moves away from the first axis, and the second guide end gradually moves closer to the first axis. During the process of the door opening from G0 to G1, the first guide end moves away from the side wall of the first body and the plane where the pick-up and put-out opening is located, and the second guide end moves away from the side wall of the first body and closer to the plane where the pick-up and put-out opening is located. During the process of the door opening from G1 to G2, the first guide end moves towards the side wall of the first body and away from the plane where the pick-up and put-out port is located, and the second guide end moves away from the side wall of the first body and towards the plane where the pick-up and put-out port is located. During the process of the door opening from G2 to G5, the first guide end moves towards the side wall of the first body and away from the plane where the retrieval and placement opening is located, and the second guide end moves away from the side wall of the first body and the plane where the retrieval and placement opening is located; wherein, G0 <G2<G5。 9. The refrigerator according to claim 8, characterized in that, During the process of the door opening from G0 to G1, the second axis moves relative to the guide portion to the side away from the plane where the first body sidewall and the pick-up / place-out opening are located; During the process of the door opening from G1 to G2, the second shaft moves relative to the guide portion away from the side wall of the first body and closer to the plane where the pick-up and put-out opening is located. During the process of the door opening from G2 to G3, the second shaft moves relative to the guide portion towards the side wall of the first body and away from the plane where the pick-up and put-out opening is located. During the process of the door opening from G3 to G4, the second shaft moves relative to the guide portion towards the side closer to the plane where the first body sidewall and the pick-and-place opening are located; During the process of the door opening from G4 to G5, the second axis moves relative to the guide portion away from the plane where the first body sidewall and the pick-up / place-out opening are located; wherein, G0 <G1<G2<G3<G4<G5。 10. A refrigerator, characterized in that, include: The housing defines multiple receiving cavities with openings for taking out and putting in. The enclosure has a first body sidewall and a second body sidewall that are arranged opposite to each other; A door, connected to the housing, is used to close or open the receiving cavity; the door has: The front wall of the door is away from the box when the door is closed; The door sidewall is connected to the front wall of the door and is located on the side of the door body away from the second body sidewall when it is in the closed state; A hinge assembly connects the door to the housing, allowing the door to rotate relative to the housing; the hinge assembly includes: A first hinge element is disposed on the housing and close to the side wall of the first body; the first hinge element includes: A hinge plate, which is connected to the housing; A first shaft and a guide portion are disposed on the hinge plate; A second hinge element is disposed on the door body; the second hinge element includes: The second shaft cooperates with the guide portion; A guide section that mates with the first shaft; The movement trajectory of the central axis of the second axis relative to the guide part is denoted as the guide trajectory line S. The guide trajectory line S is an arc and protrudes to the side away from the plane where the pick-up and put-out port is located. The central axis of the first axis is denoted as the first central axis Q; the center of the arc-shaped guide trajectory line S is denoted as the guide center O; the point at which the guide trajectory line S is at the maximum distance from the plane where the pick-up and drop-off port is located is denoted as the first guide point P1; In the projection of the plane containing the top wall of the box, the distance between the first central axis Q and the first guide point P1 in the direction perpendicular to the plane containing the loading and unloading port is denoted as |QP1|1. Where 0mm≤|QP1|1≤4mm.

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