Storage devices and refrigerators

Abstract

The present invention discloses a storage device and a refrigerator. The storage device includes a box body having a storage space, a door body, and a hinge assembly. The door body is pivotally attached to the box body via the hinge assembly and opens and closes the storage space. The hinge assembly includes a main shaft, a secondary shaft, a main groove that fits the main shaft, and a secondary groove that fits the secondary shaft. In the process of opening the door body, the door body rotates relative to the main shaft, and the main shaft slides relative to the main groove. The secondary shaft slides relative to the secondary groove. In the process of opening the door body, the main shaft moves sequentially along a first main shaft trajectory, a second main shaft trajectory, and a third main shaft trajectory within the main groove. The storage device and refrigerator can reduce the space occupied by the door body.

Description

Technical Field

[0001] This application claims priority from Chinese Patent Application No. 202310280314.0 (Title of Invention: "Storage Device and Refrigerator") filed on March 21, 2023, Chinese Patent Application No. 202310280340.3 (Title of Invention: "Storage Device and Refrigerator") filed on March 21, 2023, and Chinese Patent Application No. 202310282005.7 (Title of Invention: "Storage Device and Refrigerator") filed on March 21, 2023, and the entire contents of these are incorporated herein by reference.

[0002] The present invention relates to the technical field of household appliances, and particularly to a storage device and a refrigerator.

Background Art

[0003] When opening a household appliance such as a refrigerator, as the opening stage of the door body progresses, the opening angle of the door body also increases. In the prior art, as the door body rotates around a fixed axis, the opening angle of the door body increases uniformly, and thus the overall rotation of the door body also occurs uniformly as the opening angle increases. However, in such a method, the door body can only rotate and cannot adjust the distance from other structures, resulting in interference with external environmental members or the box body. On the other hand, the opening and closing of the door body cannot be achieved only by the movement of the door body itself, and the presence of the rotation stage is a prerequisite for realizing the normal opening of the door body. By providing two axes, the balance between rotation and the movement of the door body can be achieved. However, if the two axes are movable, generally two grooves need to be provided on the door body, and providing two grooves will inevitably occupy a large amount of space on the door body. Therefore, how to provide two grooves to reduce the space occupied by the door body has become an issue to be solved.

Summary of the Invention

[0004] One object of the present invention is to provide a storage device and a refrigerator that can effectively reduce space occupation.

[0005] To achieve one of the above-mentioned objectives of the invention, one embodiment of the present invention provides a storage device comprising a box having a storage space, a door, and a hinge assembly, wherein the door pivots to the box via the hinge assembly to open and close the storage space. The hinge assembly includes a main shaft, a secondary shaft, a main groove that fits (fits) to the main shaft, and a secondary groove that fits (fits) to the secondary shaft, and in the process of opening the door body, the door body rotates relative to the main shaft, and the main shaft slides relative to the main groove, and the secondary shaft slides relative to the secondary groove, During the opening process of the door body, the main shaft moves sequentially along the first main shaft trajectory, the second main shaft trajectory, and the third main shaft trajectory within the main groove.

[0006] As a further improvement of one embodiment of the present invention, the sum of the lengths of the first spindle trajectory and the third spindle trajectory is equal to the length of the second spindle trajectory.

[0007] As a further improvement of one embodiment of the present invention, the end of the third main axis trajectory is located at the beginning of the first main axis trajectory.

[0008] As a further improvement of one embodiment of the present invention, when the door body is in the closed state, the starting end of the first main shaft trajectory is located at an intermediate position in the main groove.

[0009] As a further improvement of one embodiment of the present invention, when the spindle is located at the starting end of the first spindle trajectory, the door body is in a closed state, and when the spindle moves to the end of the third spindle trajectory, the door body reaches its maximum open angle.

[0010] As a further improvement of one embodiment of the present invention, the door body has a door side wall, a door front wall, and a door outer edge where the door side wall and the door front wall intersect, the box body has a box body side wall and a box body front wall that are provided vertically, the opening of the storage space is provided in the box body front wall, the storage device is provided on one side of the external environmental member, the box body side wall faces the first side position of the external environmental member, When the main shaft moves along the first main shaft trajectory, the door body has a movement component in the direction away from the external environmental member with respect to the main shaft. When the main shaft moves along the second main shaft trajectory, the door body has a movement component in the direction toward the external environmental member relative to the main shaft. When the main shaft moves along the third main shaft trajectory, the door body has a movement component in the direction away from the external environmental member relative to the main shaft.

[0011] As a further improvement of one embodiment of the present invention, the hinge assembly has a support member fixed to the box body, the main shaft and the sub-shaft are fixed to the support member, and the main groove and the sub-groove are provided in the door body.

[0012] As a further improvement of one embodiment of the present invention, the main groove is substantially elliptical in shape as a whole, protruding away from the door side wall, the overall direction of extension of the main groove intersects diagonally with the door side wall and the door front wall, and the overall direction of extension of the main groove extends toward the outer edge of the door.

[0013] As a further improvement of one embodiment of the present invention, when the main shaft moves along the first main shaft trajectory, the main shaft moves relative to the door body in a direction toward the front wall of the door and toward the side wall of the door, and the main shaft moves relative to the door body in a direction toward the outer edge of the door, When the main shaft moves along the second main shaft trajectory, the main shaft moves relative to the door body in a direction away from the front wall of the door and away from the side wall of the door, and the main shaft moves relative to the door body in a direction away from the outer edge of the door. As the main shaft moves along the third main shaft trajectory, the main shaft moves relative to the door body in a direction approaching the front wall of the door and in a direction approaching the side wall of the door, and the main shaft moves relative to the door body in a direction approaching the outer edge of the door.

[0014] As a further improvement of one embodiment of the present invention, during the opening process of the door body, the sub-shaft moves sequentially along the first sub-shaft trajectory, the second sub-shaft trajectory, the third sub-shaft trajectory, and the fourth sub-shaft trajectory. When the sub-shaft moves along the first sub-shaft trajectory, the door body rotates around the main shaft, and the main shaft is positioned at the first main shaft position within the main groove. When the sub-axis moves along the second sub-axis trajectory, the main axis moves relative to the door body from the first main axis position toward the outer edge of the door along the first main axis trajectory, and then moves toward the outer edge of the door along the second main axis trajectory. As the sub-axis moves along the third sub-axis trajectory, the main axis continues to move away from the outer edge of the door along the second main axis trajectory relative to the door body. When the sub-axis moves along the fourth sub-axis trajectory, the main axis moves relative to the door body along the third main axis trajectory in a direction toward the outer edge of the door.

[0015] As a further improvement of one embodiment of the present invention, the first sub-axis trajectory is an arc centered on the first main axis position, and the second sub-axis trajectory is a straight line overall. The starting end of the second sub-axis trajectory is located at the end of the first sub-axis trajectory, and the inclination of the tangent to the end of the first sub-axis trajectory is greater than the inclination in the direction of extension of the second sub-axis trajectory. The third sub-axis trajectory is curved overall, the fourth sub-axis trajectory is straight overall, the radius of curvature of the first sub-axis trajectory is smaller than the radius of curvature of the third sub-axis trajectory, and / or the curvature of the first sub-axis trajectory is greater than the curvature of the third sub-axis trajectory.

[0016] As a further improvement of one embodiment of the present invention, the extending direction of the second sub-axis trajectory intersects with the extending direction of the fourth sub-axis trajectory, When the sub-axis moves along the second sub-axis trajectory, the sub-axis moves relative to the door body in a direction away from the front wall of the door and towards the side wall of the door. As the sub-axis moves along the fourth sub-axis trajectory, the sub-axis moves relative to the door body in a direction toward the front wall of the door and toward the side wall of the door, and moves toward the outer edge of the door.

[0017] As a further improvement of one embodiment of the present invention, the main shaft, the sub-shaft and the door body are When the sub-shaft moves to the end of the first sub-shaft trajectory, the main shaft maintains its first main shaft position relative to the main groove, and the door body opens to the first opening angle. When the main shaft moves to the end of the first main shaft trajectory, the sub-shaft is positioned on the second sub-shaft trajectory, and the door body opens to the second opening angle. When the main shaft moves and returns to the first main shaft position, the sub-shaft is located on the second sub-shaft trajectory, and the door body opens to the third opening angle. When the sub-shaft moves to the end of the second sub-shaft trajectory, the main shaft is positioned between its first main shaft position and the end of the second main shaft trajectory, and the door body opens to the fourth opening angle. When the sub-shaft moves to the end of the third sub-shaft trajectory, the main shaft is located at the end of the second main shaft trajectory, the main shaft is located at the end of the main groove, the door body opens to the fifth opening angle, and, At least one of the following relationships is satisfied: when the sub-axis moves to the end of the fourth sub-axis trajectory, the main axis moves to the end of the third main axis trajectory and returns to the first main axis position, and the door body opens to the sixth opening angle. Here, the first opening angle, the second opening angle, the third opening angle, the fourth opening angle, the fifth opening angle, and the sixth opening angle increase in sequence.

[0018] As a further improvement of one embodiment of the present invention, the door body has a door side wall, a door front wall, and a door outer edge where the door side wall and the door front wall intersect, the box body has a box body side wall and a box body front wall that are provided vertically, and the opening of the storage space is provided in the box body front wall. When the door body is in the closed state, the vertical distance between the main shaft and the front auxiliary surface is smaller than the vertical distance between the sub-shaft and the front auxiliary surface, where the front auxiliary surface is parallel to the front wall of the door and the outer edge of the door is located within the front auxiliary surface. When the door body is in the closed state, the vertical distance between the main shaft and the side auxiliary surface is smaller than the vertical distance between the auxiliary shaft and the front auxiliary surface. Here, the side auxiliary surface is provided so as to be parallel to or overlap with the outer edge of the door, and the outer edge of the door is located within the side auxiliary surface.

[0019] As a further improvement of an embodiment of the present invention, the first, second, and third main shaft locus lines include at least a curved portion, and the curved portion protrudes toward the side away from the door side wall, and the first, second, and third main shaft locus lines are substantially elliptical arc-shaped as a whole.

[0020] As a further improvement of an embodiment of the present invention, the door body has a door side wall, a door front wall, and an outer edge of the door where the door side wall and the door front wall intersect. When the main shaft moves along the first main shaft locus line and the third main shaft locus line with respect to the door body, the main shaft moves in a direction approaching the outer edge of the door, and when moving along the second main shaft locus line, the main shaft moves in a direction away from the outer edge of the door.

[0021] As a further improvement of an embodiment of the present invention, when the main shaft moves along the third main shaft locus line, the opening angle of the door body is 90° or more.

[0022] In order to achieve one of the objects of the present invention, an embodiment of the present invention provides a refrigerator including a storage device having any of the above technical configurations.

[0023] Compared with the prior art, the storage device and the refrigerator provided by the present invention can effectively reduce the space occupation by the main shaft moving sequentially along the first, second, and third main shaft locus lines during the opening process of the door body.

Brief Description of the Drawings

[0024] [Figure 1] It is a view showing the mounting structure of the storage device in a specific embodiment of the present invention. [Figure 2] It is a schematic plan view of the storage device shown in FIG. 1. [Figure 3] It is a partially enlarged view of part A of FIG. 2. [Figure 4] This figure shows the structure of the storage device door in a specific embodiment of the present invention when it is in the closed position. [Figure 5] This figure shows the structure of the storage device door in one specific embodiment of the present invention when it is at a first open angle. [Figure 6] This figure shows the structure of the storage device door in one specific embodiment of the present invention when it is at the second open angle. [Figure 7] This figure shows the structure of the storage device door when it is at the fourth open angle in one specific embodiment of the present invention. [Figure 8] This figure shows the structure of the storage device door in one specific embodiment of the present invention when it is at the fifth open angle. [Figure 9] This figure shows the structure of the storage device door in one specific embodiment of the present invention when it is at the sixth open angle. [Modes for carrying out the invention]

[0025] The present invention will now be described in detail based on the specific embodiments shown in the attached drawings. However, these embodiments are not limiting to the present invention, and any structural, method, or functional modifications made by those skilled in the art based on these embodiments are all covered within the scope of the present invention.

[0026] Furthermore, the term "includes" or other variations of it means non-exclusive inclusion, meaning that a process, method, article, or apparatus containing a set of elements includes not only those elements but also other elements not explicitly listed, or elements specific to such a process, method, article, or apparatus. Also, terms such as "first," "second," "third," "fourth," "fifth," "sixth," and "seventh" are used for descriptive purposes only and should not be understood as suggesting relative importance.

[0027] One embodiment of the present invention provides a storage device which includes a box that may be embedded in an external environmental member, the external environmental member being, for example, an interior member, and the storage device may be a refrigerator or any other household appliance embedded in the external environmental member. The household appliance may be other home appliances other than a refrigerator, or furniture such as a storage shelf, thereby realizing the technical effect that the household appliance equipped with the storage device is embedded in other interior or external environmental members.

[0028] In this embodiment, as shown in Figures 1 to 4, the storage device includes a box body 1 for providing an internal storage space 10, a door body 2, and a hinge assembly 3. The door body 2 is pivotably attached to the box body 1 via the hinge assembly 3 to open and close the storage space 10.

[0029] In this embodiment, the box body 1 has a front wall 11 and a side wall 12 that is provided perpendicular to the front wall 11, and in this embodiment, the front wall 11 and the side wall 12 are generally planar. The opening of the storage space 10 is provided in the front wall 11, and the door body 2 is located on the front side of the box body 1 as a whole, and when the door body 2 is in the closed state, it seals the opening of the storage space 10. Here, "front side" refers to the direction in which the opening of the storage space 10 faces.

[0030] The door body 2 further has a front door wall 21 and a side door wall 22, and a door outer edge 23 is formed at the intersection of the front door wall 21 and the side door wall 22. When the door body 2 is in a closed state, that is, when the door body 2 covers the opening of the storage space 10, the front door wall 21 is provided on the side of the door body 2 that is away from the front wall of the box body. In this embodiment, the front door wall 21 is planar as a whole, and when the door body 2 is in a closed state, the front door wall 21 is generally parallel to the front wall 11 of the box body.

[0031] The box body 1 is provided to the side of the external environment member 100, and after the box body 1 is positioned in a predetermined location, the side wall 22 of the box body faces the first side surface of the external environment member 100, that is, the side wall 22 of the box body faces the first side surface position of the external environment member 100, and the side wall 22 of the box body is generally parallel to the first side surface of the external environment member 100.

[0032] When the door body 2 is in the closed state, the door side wall 22 also faces the first side surface of the external environment member 100, and the door side wall 22 is opposite to the position of the first side surface. In this embodiment, the door side wall 22 is planar as a whole and is generally parallel to the first side surface of the external environment member 100.

[0033] In this embodiment, both the front door wall 21 and the side door wall 22 are generally planar. When the door body 2 is in a closed state, the front door wall 21 is parallel to the front box body wall 11, and the plane on which the side door wall 22 is located is parallel to the plane on which the side box body wall 12 is located.

[0034] In this embodiment, the hinge assembly 3 includes a main shaft 31, a sub-shaft 32, a main groove 301 that fits the main shaft 31, and a sub-groove 302 that fits the sub-shaft 32. During the opening process of the door body 2, the door body 2 rotates relative to the main shaft 31, and the main shaft 31 slides relative to the main groove 301. The sub-shaft 32 slides relative to the sub-groove 302, and the door body 2 also rotates relative to the sub-shaft 32.

[0035] In this embodiment, the cooperation (fitting) of the main shaft 31 and the main groove 301 mainly serves to rotate the door body 2, while the cooperation (fitting) of the sub-shaft 32 and the sub-groove 302 mainly serves to guide the rotation process of the door body 2. As the door body 2 rotates around the main shaft 31, the position of the main shaft 31 in the main groove 301 is variable, allowing the door body 2 to move in the forward, backward, left, and right directions relative to the main shaft 31 during the opening process. This allows the position of the door body 2 to be adjusted as needed during the opening process, preventing the door body 2 from interfering with the external environmental member 100 during the opening process. Furthermore, the size of the opening angle of the door body 2 can be controlled by adjusting the position of the door body 2, making it more convenient to remove items. The specific configuration of the sub-groove 302 affects the direction and position of the movement of the main shaft 31 in the main groove 301 during the opening process of the door body 2, and indirectly controls the direction of movement of the door body 2 during the opening process.

[0036] As shown in Figures 6-7 and 9, in this embodiment, during the opening process of the door body 2, the main shaft 31 moves sequentially along the first main shaft trajectory line 311, the second main shaft trajectory line 312, and the third main shaft trajectory line 313 within the main groove 301. The sum of the lengths of the first main shaft trajectory line 311 and the third main shaft trajectory line 313 is equal to the length of the second main shaft trajectory line 312.

[0037] In this embodiment, during the process of fully opening the door body 2, the main shaft 31 reciprocates within the main groove 301, and the trajectory of the movement of the main shaft 31 within the main groove 301 is approximately twice the extended length of the main groove 301. This structure allows the main groove 301 to be shortened, avoiding the main groove 301 from occupying a large amount of space, which not only facilitates the installation of the main groove 301 in the box body 1 or door body 2, but also avoids problems caused by excessive groove machining of the main groove 301. Excessive groove machining inevitably leads to thinning of the wall thickness of the area where the main groove 301 is installed, so the present invention can improve the stability of the area where the main groove 301 is installed with the above structure.

[0038] As shown in Figure 3, in this embodiment, the hinge assembly 3 has a support member 34 fixed to the box body 1, and the main shaft 31 and the sub-shaft 32 are fixed to the support member 34. The main groove 301 and the sub-groove 302 are provided in the door body 2, respectively. The main groove 301 and the sub-groove 302 are provided in the upper part of the door body 2 and have a structure that opens upward.

[0039] The main groove 301 is provided in the door body 2, and since there is a limit to the thickness of the door body 2, the movement trajectory of the main spindle 31 is configured to move back and forth twice along the main groove 301 during the opening process of the door body 2. This avoids the limitation on the thickness of the door body 2 caused by the main groove 301, thereby allowing the door body 2 to be designed to be thinner. Because the movement trajectory of the main spindle 31 is configured to move back and forth twice, the main spindle 31 slides back and forth on both sides within the main groove 301 during the opening process of the door body 2. This shortens the dimensions of the main groove 301, avoiding excessive space occupancy due to the main groove 301 being too long. At the same time, it avoids the problem of excessive groove machining 301 due to the main groove 301 being too long, and makes the corresponding member on which the main groove 301 is provided more stable.

[0040] To ensure understanding, in other embodiments, the main shaft 301 and the sub-shaft 302 may be provided in the door body 2, and the main groove 301 and the sub-groove 302 may be provided in the box body 1 accordingly. In other words, the combination of shafts and grooves can be interchanged between the door body 2 and the box body 1, which is easily conceivable to those skilled in the art, and therefore no specific limitations are made here. For the sake of clarity, the explanation will primarily be based on an example in which the main groove 301 and the sub-groove 302 are provided in the door body 2, and the main shaft 31 and the sub-shaft 32 are provided in the box body 1.

[0041] The end of the third main shaft trajectory 313 is located at the beginning of the first main shaft trajectory line 311. With this structure, during the opening process of the door body 2, the main shaft 31 can return to its initial position after completing its sliding along the main groove 301 from the initial closed state to the final fully open state of the door body 2.

[0042] In this embodiment, when the door body is in the closed state, the starting end of the first spindle trajectory line 311 is located at an intermediate position in the main groove 301. When the spindle 31 is located at the starting end of the first spindle trajectory line 311, the spindle 31 is positioned at the first spindle position D11 of the main groove 301. When the spindle 31 moves to the end of the first spindle trajectory line 311, the spindle 31 is positioned at the second spindle position D12 of the main groove 301. When the spindle 31 is located at the end of the second spindle trajectory line 312, the spindle 31 is positioned at the third spindle position D13 of the main groove 301.

[0043] In this embodiment, the main groove 301 has a first main groove end and a second main groove end that are opposite each other, and when the spindle 31 moves to a position where it contacts the first main groove end, the spindle 31 is positioned at the second spindle position D12 of the main groove 301. When the spindle 31 moves to a position where it contacts the second main groove end, the spindle 31 is positioned at the third spindle position D13 of the main groove 301. As can be understood, the distance between the second spindle position D12 and the first main groove end is the radius of the spindle 31, and the distance between the third spindle position D13 and the second main groove end is also the radius of the spindle 31.

[0044] In this embodiment, the meaning of the starting end of the first spindle trajectory line 311 being located at an intermediate position in the main groove 301 is as follows: The starting end of the first spindle trajectory line 311, i.e., the position of the first spindle position D11, is provided between the second spindle position D12 and the third spindle position D13, and the intermediate position is not necessarily limited to the exact center position of the main groove 301. More importantly, the starting end of the first trajectory line 311 is provided away from both ends of the main groove 301. With the above structure, when the spindle 31 first starts sliding, it can slide in the direction of both the first main groove end and the second main groove end, making control easier and mounting and fixing easier.

[0045] In this embodiment, as shown in Figure 6, the first spindle trajectory line 311 is the path trajectory of the spindle 31 sliding along the main groove 301 from the first spindle position D11 to the second spindle position D12. As shown in Figure 7, the second spindle trajectory line 312 is the path trajectory of the spindle 31 sliding along the main groove 301 from the second spindle position D12 to the third spindle position D13. As shown in Figure 9, the third spindle trajectory line 313 is the path trajectory of the spindle 31 moving along the main groove 301 from the third spindle position D13 to the first spindle position D11.

[0046] As shown in Figures 3 and 4, in this embodiment, when the main shaft 31 is located at the starting end of the first main shaft trajectory 311, the door body 2 is in a closed state, and at this time, the main shaft 31 is located at the first main shaft position D11. As shown in Figure 9, when the main shaft 31 moves along the third main shaft trajectory 313 and returns to the first main shaft position D11, the door body 2 reaches its maximum opening angle. As shown in Figure 8, when the main shaft 31 moves along the second main shaft trajectory 312 to the third main shaft position D13, the opening angle of the door body 2 is 90 degrees.

[0047] As shown in Figure 6, when the main shaft 31 moves along the first main shaft trajectory line 312 to the second main shaft position D12, the opening angle of the door body 2 is approximately 45 degrees, and at this time, the outer edge 23 of the door is approximately in the position closest to the external environment member 100.

[0048] In this embodiment, when the door body 2 is closed, the door side wall 22 faces the first side surface position of the external environment member 100. As shown in Figure 5-6, during the opening process of the door body 2, the door outer edge 23 moves toward the external environment member 100, and in order to avoid interference between the door outer edge 23 and the external environment member 100 during this movement, the door body 2 needs to move away from the external environment member 100 relative to the main shaft 31. That is, relative to the door body 2, the main shaft 31 moves along the first main shaft trajectory line 311 within the main groove 301 from the first main shaft position D11 to the second main shaft position D12.

[0049] As the door body 2 opens further, as shown in Figure 8, when the door body 2 is opened to 90 degrees, the distance between the door outer edge 23 and the external environment member 100 becomes equal to the distance between the door outer edge 23 and the external environment member 100 in the initial state. As the door body 2 opens further, as shown in Figure 9, after the opening angle of the door body 2 exceeds 90 degrees, interference problems with the external environment member 100 may occur as the part of the door body 2 that is symmetrical to the position of the main axis 1 moves further.

[0050] In order to prevent the external environmental member 100 from interfering with the door body 2 during the opening process of the door body 2, in this embodiment, when the main shaft 31 moves along the first main shaft trajectory line 311, the door body 2 has a movement component in the direction away from the external environmental member 100 relative to the main shaft 31. That is, relative to the door body 2, the main shaft 31 moves along the third main shaft trajectory line 313 within the main groove 301 from the third main shaft position D13 to the first main shaft position D11.

[0051] When the main shaft 31 moves along the second main shaft trajectory line 312, the door body 2 has a movement component in the direction toward the external environment member 100 relative to the main shaft 31.

[0052] As shown in Figure 3-5, during the rotation process, the outer edge 23 of the door initially gradually approaches the external environmental member 100, and after reaching a critical position, as shown in Figure 6-8, the outer edge 23 of the door gradually moves away from the external environmental member 100 as the door body 2 rotates further. Therefore, when the outer edge 23 of the door moves away from the external environmental member 100, the entire door body 2 can be moved in a direction toward the external environmental member 100 relative to the main shaft 31. That is, relative to the door body 2, the main shaft 31 moves along the second main shaft trajectory line 312 from the second main shaft position D12 to the third main shaft position D13. In this process, assuming that the outer edge 23 of the door and the external environmental member 100 do not interfere with each other, the door body 2 can have a larger opening angle after opening, thereby better balancing the convenience of removing items.

[0053] When the main shaft 31 moves along the third main shaft trajectory line 313, the door body 2 has a movement component in the direction away from the external environment member 100 relative to the main shaft 31.

[0054] As the main shaft 31 moves along the third trajectory line 313, the opening angle of the door body 2 has already exceeded 90 degrees, and the outer edge 23 of the door gradually moves away from the external environment member 100 during the rotation process of the door body 2. However, the position on the door body 2 that is symmetrical to the outer edge 23 of the door and the main shaft 31 gradually approaches the external environment member 100 as the door body 2 rotates, which makes interference with the external environment member 100 more likely. Therefore, after the opening angle of the door body 2 exceeds 90 degrees, in order to avoid interference between the door body 2 and the external environment member 100, the door body 2 moves in a direction away from the external environment member 100 relative to the main shaft 31 during the rotation process.

[0055] During the opening process of the door body 2, the door body can be moved relative to the main shaft 31 in a direction toward or away from the external environmental member 100 as needed. This allows the box body 1 to be attached closer to the external environmental member 100 when it is attached to the external environmental member 100, reducing the gap between the box body side wall 12 and the external environmental member 100. This makes the assembled appearance of the box body 1 and the external environmental member 100 more aesthetically pleasing. Applying this method to a built-in refrigerator makes the assembled refrigerator more aesthetically pleasing.

[0056] To facilitate relative movement between the door body 2 and the main shaft 31, the main groove 301 includes at least a curved portion, and this curved portion is curved and protrudes away from the door side wall 22.

[0057] Specifically, in this embodiment, the main groove 301 is substantially elliptical in shape overall, protruding away from the door side wall 22, the overall direction of extension of the main groove 301 intersects diagonally with the door side wall 22 and the door front wall 21, and the overall direction of extension of the main groove 301 extends toward the door outer edge 23.

[0058] The starting point of the first spindle trajectory line 311 is located at the position where the curvature of the main groove 301 is maximum; that is, the first spindle position D11 is located at the position where the curvature of the main groove 301 is maximum. The path from the first spindle position D11 to the second spindle position D12 is also elliptical in shape as a whole and protrudes away from the door side wall 22. As shown in Figure 6, when the spindle 31 moves along the main groove 301 to the second spindle position D12, the distance between the door outer edge 23 and the external environment member 100 is minimized.

[0059] With the above structure, as the main shaft 31 moves along the main groove 301 between the first main shaft position D11 and the second main shaft position D12, the movement trajectory of the door outer edge 23 can be made almost straight, and the straight movement trajectory formed by the door outer edge 23 is parallel to the external environment member 100 as a whole. Note that whether the main shaft 31 moves along the main groove 301 from the first main shaft position D11 to the second main shaft position D12, or whether the main shaft 31 moves along the main groove 301 from the second main shaft position D12 to the first main shaft position D11, the movement trajectory of the door outer edge 23 in this section is approximately straight in both cases. As shown in Figure 4, the dashed line L11 in the drawing shows the movement trajectory of the door outer edge 23 during the full opening process.

[0060] When the outer edge 23 of the door slides between the first main axis position D11 and the second main axis position D12, the maximum difference in distance from the outer edge 23 of the door to the first side surface of the external environment member 100 at each position during the movement process does not exceed 0.2 mm. In other words, when the outer edge 23 of the door moves along this trajectory, the difference between the maximum and minimum distance from the external environment member 100 does not exceed 0.2 mm, so the movement trajectory of the outer edge 23 of the door along this trajectory can be considered as linear motion as a whole.

[0061] The above structure makes it possible to better avoid interference between the outer edge 23 of the door and the external environmental member 100, and to reduce the gap between the box body 1 and the external environmental member 100, thereby making the appearance of storage devices such as refrigerators incorporated into the external environmental member 100 more aesthetically pleasing.

[0062] Similarly, the path from the first main axis position D11 to the third main axis position D13 is also elliptical in shape as a whole and protrudes away from the door side wall 22. A fourth main axis position D14 (not shown) is provided between the first main axis position D11 and the third main axis position D13. When the main axis 31 moves along the second main axis trajectory line 312 to the fourth main axis position D14, the door body 2 opens to about 75 to 85 degrees. In this embodiment, when the main axis 31 moves to the fourth main axis position D14, the door body 2 opens to 80 degrees.

[0063] As the main shaft 31 moves along the main groove 301 from the first main shaft position D11 to the fourth main shaft position D14, the movement trajectory of the door outer edge 23 can be made almost straight, and the straight movement trajectory formed by the door outer edge 23 as a whole is parallel to the external environment member 100. However, when the main shaft 31 moves along the main groove 301 from the fourth main shaft position D14 toward the first main shaft position D11, the opening angle of the door body 2 has already exceeded 90 degrees, and the movement trajectory of the door outer edge 23 as a whole becomes curved.

[0064] When the outer edge 23 of the door slides from the first main axis position D11 toward the fourth main axis position D14, the maximum difference in distance from the outer edge 23 of the door to the first side surface of the external environment member 100 at each position during the movement process does not exceed 0.2 mm. In other words, when the outer edge 23 of the door moves along this trajectory, the difference between the maximum and minimum distance from the external environment member 100 does not exceed 0.2 mm, so the movement trajectory of the outer edge 23 of the door in this section can be considered as linear motion as a whole.

[0065] Based on the above, during the opening process of the door body 1, as the main shaft 31 moves along the first main shaft trajectory 311 and the second main shaft trajectory 312 to the fourth main shaft position D14, the overall movement trajectory of the outer edge 23 of the door can be considered to be approximately a straight line.

[0066] In the above embodiment, whether the movement trajectory from the first spindle position D11 to the second spindle position D12 is elliptical arc-shaped, or whether the movement trajectory from the first spindle position D11 to the third spindle position D13 is elliptical arc-shaped, in either case, the main groove 301 as a whole is provided in an elliptical arc shape, and the main groove 301 is curved and protrudes away from the door side wall 22.

[0067] In this embodiment, during the opening process of the door body, the main shaft 31 moves sequentially along the first main shaft trajectory line 311, the second main shaft trajectory line 312, and the third main shaft trajectory line 313.

[0068] As shown in Figure 5-6, when the main shaft 31 moves along the first main shaft trajectory line 311, the main shaft 31 moves in a direction toward the outer edge 23 of the door relative to the door body 2. The main shaft 31 moves in a direction toward the front wall 21 of the door and in a direction toward the side wall 22 of the door.

[0069] As the main shaft 31 moves along the first main shaft trajectory line 311, the opening angle of the door body 2 is relatively small. Therefore, in order to avoid the door outer edge 23 being affected by interference from the external environment member 100, it is necessary to move the door outer edge 23 toward the main shaft 31.

[0070] As shown in Figure 6-8, when the main shaft 31 moves along the second main shaft trajectory line 312, the main shaft 31 moves away from the outer edge 23 of the door relative to the door body 2. The main shaft 31 moves away from the front wall 21 of the door and away from the side wall 22 of the door.

[0071] As the main shaft 31 moves along the second main shaft trajectory line 312, the outer edge 23 of the door gradually rotates away from the external environmental member 100 as the door body 2 rotates. In this case, since there is no need to consider interference problems with the external environmental member 100, the outer edge 23 of the door is moved away from the main shaft 31 in this process to achieve better opening and to facilitate the removal of items.

[0072] As shown in Figure 8-9, when the main shaft moves along the third main shaft trajectory line 313, the main shaft 31 moves in a direction toward the outer edge 23 of the door relative to the door body 2. The main shaft 31 moves in a direction toward the front wall 21 of the door and in a direction toward the side wall 22 of the door.

[0073] As the main shaft 31 moves along the third main shaft trajectory line 313, the opening angle of the door body already exceeds 90 degrees. To prevent other parts of the door body 2 from being interfered with by the external environment member 100 as it rotates further, it is necessary to move the door body 2 away from the external environment member 100. That is, the outer edge 23 of the door is moved again towards the main shaft 31.

[0074] In this embodiment, the outer edge 23 of the door is first moved in a direction toward the main shaft 31, then moved toward the main shaft 31, and finally moved toward the main shaft 31 again. By moving toward the main shaft 31 twice, the outer edge 23 of the door and other corresponding positions of the door body can be better prevented from being interfered with by the external environmental member 100, and at the same time, the above structure also takes into consideration the convenience of removing items after the door body 2 is opened.

[0075] In this embodiment, as shown in Figure 5-6, when the main shaft 31 moves along the first main shaft trajectory line 311, the door body 2 has a movement component in the direction toward the box body 1 relative to the main shaft 31. That is, the door body 2 has a movement component in the rearward direction relative to the main shaft 31. Here, "rearward" refers to the direction opposite to the opening of the storage space 10. By moving the door body 2 backward, the door body 2 can have a larger opening angle during the subsequent opening process.

[0076] When the main shaft 31 moves along the second main shaft trajectory 312, the door body 2 has a movement component in the direction away from the box body 1 relative to the main shaft 31 when it moves to the starting end of the first main shaft trajectory 312, that is, from the second main shaft position D12 to the first main shaft position D11. In other words, the door body 2 has a movement component in the forward direction relative to the main shaft.

[0077] As shown in Figure 7, when the main shaft 31 moves further along the second main shaft trajectory line 312 to the fourth main shaft position D14 (not shown), where the fourth main shaft position D14 is located between the first main shaft position D11 and the third main shaft position D13, the door body 2 has a movement component in the direction away from the box body 1 relative to the main shaft 31. That is, the door body 2 has a movement component in the forward direction relative to the main shaft.

[0078] In this case, the line connecting the first spindle position D11 and the fourth spindle position D14 is perpendicular to the first side surface of the external environment member 100 as a whole, and the line connecting the first spindle position D11 and the fourth spindle position D14 is parallel to the front wall 11 of the box as a whole.

[0079] As shown in Figure 7-8, when the main shaft 31 moves further along the second main shaft trajectory line 312 from the fourth main shaft position D14 to the third main shaft position D13, the door body 2 has a movement component in the direction toward the box body 1 relative to the main shaft 31. That is, the door body 2 has a movement component in the rearward direction relative to the main shaft. At this stage, the opening angle of the door body 2 is close to 90 degrees, and in order to ensure sufficient stability of the door body 2 and prevent tilting forward, the door body 2 is configured to move toward the rear and closer to the box body 1.

[0080] As shown in Figure 8-9, during the process in which the main shaft 31 moves along the third main shaft trajectory 313 from the third main shaft position D13 to the first main shaft position D11, the door body 2 has a movement component in the direction away from the box body 1 relative to the main shaft 31. That is, the door body 2 has a movement component in the forward direction relative to the main shaft.

[0081] In this embodiment, in order to easily enable the main shaft 31 to move along a corresponding trajectory at a corresponding position, the hinge assembly 3 is provided with cooperation (engagement) between the sub-shaft 32 and the sub-groove 302, and the movement of the sub-shaft 32 within the sub-groove 302 functions as a guide for the movement of the main shaft 31.

[0082] As shown in Figure 4-6, in this embodiment, during the opening process of the door body 2, the sub-shaft 32 moves sequentially along the first sub-shaft trajectory line 321, the second sub-shaft trajectory line 322, the third sub-shaft trajectory line 323, and the fourth sub-shaft trajectory line 324.

[0083] As shown in Figure 4-5, when the sub-shaft 32 moves along the first sub-shaft trajectory line 321, the door body 2 rotates around the main shaft 31. At this time, the main shaft 31 is located at the first main shaft position D11 within the main groove 301. At this time, the sub-shaft 32 rotates in an arc within the sub-groove 302 with respect to the door body 2, with the main shaft 31 as the center line, and the radius of the arc is the distance from the first main shaft position D11 to the center of the sub-shaft 32.

[0084] As shown in Figure 5-6, when the sub-shaft 32 moves along the second sub-shaft trajectory 321, the main shaft 31 first moves along the first main shaft trajectory 311 from the first main shaft position D11 toward the outer edge 23 of the door to reach the second main shaft position D12. After that, the main shaft 31 moves along the second main shaft trajectory 312 toward the outer edge 23 of the door. The main shaft 31 moves from the second main shaft position D12 toward the fourth main shaft position D14 (not shown) toward the door to the door. The fourth main shaft position D14 is located between the first main shaft position D11 and the third main shaft position D13.

[0085] As shown in Figure 7-8, when the sub-axis 32 moves along the third sub-axis trajectory 323, the main axis 31 continues to move away from the outer edge 23 of the door along the second main axis trajectory 312 relative to the door body 2. The main axis 31 moves along the second main axis trajectory 312 from the fourth main axis position D14 to the third main axis position D13.

[0086] As shown in Figure 8-9, when the sub-axis 32 moves along the fourth sub-axis trajectory 324, the main axis 31 moves relative to the door body 2 along the third main axis trajectory 313 in a direction toward the outer edge 23 of the door. The main axis 31 moves along the third main axis trajectory 313 from the third main axis position D13 to the first main axis position D11.

[0087] As shown in Figure 4-6, during the opening process of the door body 2, the first sub-shaft position D21, the second sub-shaft position D22, the third sub-shaft position D23, the fourth sub-shaft position D24, and the fifth sub-shaft position D25 are sequentially provided within the sub-groove 302 along the direction of movement of the sub-shaft 32.

[0088] The first sub-axis trajectory line 321 is provided between the first sub-axis position D21 and the second sub-axis position D22, and the first sub-axis trajectory line 321 is an arc shape centered on the first main axis position D11.

[0089] The second sub-axis trajectory line 322 is provided between the second sub-axis position D22 and the third sub-axis position D23, and the second sub-axis trajectory line 322 is straight overall.

[0090] The third sub-axis trajectory line 323 is provided between the third sub-axis position D23 and the fourth sub-axis position D24, and the third sub-axis trajectory line 323 is curved as a whole.

[0091] The fourth sub-axis trajectory line 324 is provided between the fourth sub-axis position D24 and the fifth sub-axis position D25, and the fourth sub-axis trajectory line 324 is straight overall.

[0092] In this embodiment, the starting end of the second sub-axis trajectory 322 is located at the end of the first sub-axis trajectory 321, the second sub-axis trajectory 322 is located closer to the door side wall 22 relative to the first sub-axis trajectory 321, and the inclination of the tangent to the end of the first sub-axis trajectory 321 is greater than the inclination of the second sub-axis trajectory 322 in the direction of extension. That is, the inclination angle of the tangent to the end of the first sub-axis trajectory 321 is greater than the inclination angle of the second sub-axis trajectory 322. With this structure, the second sub-axis trajectory 322 interrupts the trajectory of the original arc motion around the center point, thereby allowing the door body 2 to move away from the external environment member 100 relative to the main shaft 31.

[0093] The third sub-axle track line 323 is positioned closer to the door side wall 22 than the second sub-axle track line 322, and the fourth sub-axle track line 324 is positioned closer to the door side wall 22 than the third sub-axle track line 323.

[0094] The radius of curvature of the first sub-axis track line 321 is smaller than the radius of curvature of the third sub-axis track line 323, and / or the curvature of the first sub-axis track line 321 is greater than the curvature of the third sub-axis track line 323.

[0095] As the sub-shaft 32 moves from the second sub-shaft trajectory line 322 to the third sub-shaft trajectory line 323, the angle between the direction of movement of the sub-shaft 32 and the plane on which the door side wall 22 is located gradually increases from an acute angle. That is, the inclination of the tangent line at any point on the third sub-shaft trajectory line 323 along the direction of movement of the sub-shaft 32 gradually decreases, and all of them are smaller than the inclination of the straight line on which the second sub-shaft trajectory line 322 is located.

[0096] The above structure makes the movement process from the second sub-axle track line 322 to the third sub-axle track line 323 smoother, the opening process of the door body 2 smoother, and prevents the sub-axle 32 from getting stuck when sliding in the sub-groove 302 due to the transition position between the second track line 322 and the third track line 323 being too abrupt.

[0097] In this embodiment, the door side wall 22 and the door front wall 21 intersect at the door outer edge 23, and the door outer edge 23 is simultaneously located within two auxiliary surfaces, which are the front auxiliary surface and the side auxiliary surface (not shown). When the door body 2 is in the closed state, the front auxiliary surface is parallel to the box body front wall 11, and the side auxiliary surface is parallel to the box body side wall 12.

[0098] In a specific embodiment, if the front wall 21 of the door body 2 is planar as a whole and parallel to the front wall 11 of the box body, the front auxiliary surface is on the same plane as the plane on which the front wall 11 of the box body is located. If the side wall 22 of the door body 2 is planar as a whole and parallel to the side wall 12 of the box body, the side auxiliary surface coincides with the plane on which the side wall 22 of the door is located.

[0099] Of course, in other embodiments, the plane on which the front wall 21 and the side wall 22 of the door are located may be a curved surface. If it is a curved surface, the side auxiliary surface and the front auxiliary surface are two virtual planes perpendicular to each other at the outer edge 23 of the door.

[0100] As shown in Figure 3-4, in this embodiment, when the door body 2 is in the closed state, the vertical distance between the main shaft 31 and the front auxiliary surface is smaller than the vertical distance between the sub-shaft and the front auxiliary surface.

[0101] At the same time, when the door body 2 is in the closed state, the vertical distance between the main shaft 31 and the side auxiliary surface is smaller than the vertical distance between the sub-shaft 32 and the front auxiliary surface.

[0102] The above structure requires that when the door body 2 is in the closed state, the sub-shaft 32 is located further away from the front wall 21 of the door relative to the main shaft 31. With this structure, in the initial stage of opening the door body 2, when the door body 2 rotates circumferentially around the main shaft 31, the tangential inclination of the end of the first sub-shaft trajectory 321 becomes smaller when it reaches the end of the first sub-shaft trajectory 321.

[0103] Accordingly, the inclination angle of the second sub-axis track line 322 connected to the first sub-axis track line 321 is also reduced, which causes the second sub-axis track line 322 to extend more along the width direction of the door body, preventing the second sub-axis track line 322 from extending excessively in the thickness direction of the door body 2, and further avoiding the constraint on the thickness of the door body 2 caused by the provision of the second sub-axis track line 322, making it possible to design the door body 2 to be thinner and lighter.

[0104] The inclination angle of the second sub-axis trajectory line 322 refers to the angle of intersection with the plane on which the front wall 21 of the door is located when the door body is in the closed state. The larger the inclination angle, the greater the angle of intersection with the plane on which the front wall 21 of the door is located. The above assumes that the front wall 21 of the door is planar.

[0105] Furthermore, the above structure makes the transition from the first sub-axis trajectory 321 to the second sub-axis trajectory 322 more gradual, preventing the door body 2 from getting stuck during the opening process due to the angle of the different movement trajectories being too abrupt, and allowing the door body 2 to open more smoothly. Because the sub-axis 32 is located further away from the front wall 21 of the door relative to the main axis 31, this structure allows the movement trajectory of the sub-axis 32 to be distributed more rationally in the initial stage of opening the door body 2, ensuring that the door body 2 opens smoothly without getting stuck, and allowing for more effective use of space.

[0106] In conventional technology, the sub-shaft 32 is generally positioned closer to the front wall 21 of the door than the main shaft 31. However, such a structure is disadvantageous for connecting the movement trajectory of the initial arc-shaped portion with the movement trajectory of the subsequent straight portion. At the same time, the inclination of the movement trajectory of the straight portion becomes larger, occupying more space in the thickness direction of the door body 2.

[0107] In this embodiment, when the door body is in a closed state, a coordinate system is constructed with the outer edge 23 of the door as the center, the plane on which the front auxiliary surface is located as the X direction, and the plane on which the side auxiliary surface is located as the Y direction. Both the main shaft 31 and the sub-shaft 32 are located in the second quadrant of the coordinate system, the distance Y1 between the main shaft 31 and the front auxiliary surface is in the range of 10-15 mm, and the distance X1 between the main shaft 31 and the side auxiliary surface is in the range of 11-18 mm.

[0108] In this embodiment, the value of the distance L between the main shaft 31 and the sub-shaft 32 is within the range of 15-23 mm. This structure ensures that the movement trajectories between the main shaft 31 and the sub-shaft 32 do not intersect, thereby improving the stability and feasibility of the movement of the door body 2. The distance between the main shaft 31 and the sub-shaft 32 is the distance between the axis of the main shaft 31 and the axis of the sub-shaft 32.

[0109] In this embodiment, before the spindle 31 moves along the first spindle trajectory line 311, the spindle 31 has a movement step in which it rotates in place (at its original position) relative to the main groove 301 within the main groove 301.

[0110] Therefore, the opening process of the door body 2 has the following steps. In the first stage, as shown in Figure 4-5, the door body 2 rotates around the main shaft 31, and the door body 2 rotates from the closed state to the first open angle. At this stage, the main shaft 31 rotates in place relative to the main groove 301 within the main groove 301, and in a specific embodiment, the main shaft 31 rotates in place relative to the main groove 301 around the starting end of the first main shaft trajectory line 311.

[0111] In the first stage, the main shaft 31 is always located at the first main shaft position D11. At this time, the sub-shaft 32 moves along the first sub-shaft motion trajectory 321, that is, the sub-shaft 32 moves along the sub-groove 302 from the first sub-shaft position D21 to the second sub-shaft position D22.

[0112] The overall shape of the first sub-axis motion trajectory 321 is arc-shaped, and the center of the arc on which the sub-axis motion trajectory 321 is located is the first main axis position D11. The opening angle during this movement process is the first opening angle, which is generally relatively small, and in this embodiment the first opening angle is approximately 14 degrees. In this embodiment, when the sub-axis 32 moves to the second sub-axis position D22, the door opens to exactly 14 degrees.

[0113] As the opening angle of the door body 2 increases, the distance between the outer edge 23 of the door and the external environmental member 100 decreases. To avoid interference between the outer edge 23 of the door and the external environmental member 100, and taking into consideration the opening angle of the door body 2 and the ease of removing items, the main shaft 31 begins to move relative to the door body 2 within the main groove 310 at this point.

[0114] As shown in Figure 5-6, in the second stage, the main shaft 31 moves along the first main shaft trajectory line 311 from the first main shaft position D11 to the second main shaft position D12. The door body 2 rotates from the first opening angle to the second opening angle, the second opening angle being greater than the first opening angle. During this process, the door body 2 has a movement component relative to the main shaft 31 that moves away from the external environment member 100, avoiding interference between the external environment member 100 and the door's outer edge 23. At this stage, the door body 2 moves inward.

[0115] In the second stage, the sub-axis moves along the second sub-axis trajectory line 322 to the sixth sub-axis position D26. The sixth sub-axis position D26 is located between the second sub-axis position D22 and the third sub-axis position D23.

[0116] When the sub-shaft 32 moves to the sixth sub-shaft position D26, the main shaft 31 moves along the first main shaft trajectory line 311 to the second main shaft position D12. At this time, the door body 2 has a second opening angle, which in this embodiment is approximately 45 degrees.

[0117] When the main shaft 31 moves to the second main shaft position D12 relative to the door body 2, the door outer edge 23 moves to a position approximately closest to the external environment member 100. At this time, the angle between the plane on which the door side wall 22 is located and the first side surface of the external environment member 100 coincides with the second opening angle and is approximately 45 degrees. After passing this critical point, as the door body 2 rotates further, the door outer edge 23 gradually begins to move away from the external environment member 100. Therefore, in order for the door body 2 to have a larger opening after opening and to facilitate the removal of items, the door body 2 begins to move toward the external environment member 100 relative to the main shaft 32. That is, it enters the third stage.

[0118] In the third stage, the main shaft 31 moves relative to the door body 2 along the second main shaft motion trajectory 312 from the second main shaft position D12 to the first main shaft position D11, and the door body 2 rotates from the second opening angle to the third opening angle. Here, the third opening angle is greater than the second opening angle (not shown). At this time, the door body 2 has a movement component relative to the main shaft 31 in the direction toward the external environment member 100, that is, the door body 2 moves outward. Here, "outward" refers to the side of the box body that faces the external environment member 100.

[0119] During this process, the sub-axis 32 moves along the second sub-axis trajectory line 322 from the sixth sub-axis position D26 to the seventh sub-axis position D27. Here, the seventh sub-axis position D27 lies on the second sub-axis trajectory line 322 and is located between the sixth sub-axis position D26 and the third sub-axis position D23.

[0120] On the second sub-axis trajectory line 322, the seventh sub-axis position D27 and the second sub-axis position D22 are arranged approximately symmetrically with respect to the sixth sub-axis position D26. When the sub-axis 32 moves to the seventh sub-axis position D27, the main axis 31 moves along the second main axis trajectory line 311 to the first main axis position D11. At this time, the opening angle of the door body 2 becomes exactly the third opening angle, which is approximately 70 degrees.

[0121] When the sub-shaft 32 moves to the seventh sub-shaft position D27, the connecting line between the first main shaft position D11 and the third main shaft position D13 is aligned in a direction parallel to the front wall 11 of the box body, that is, perpendicular to the first side surface of the external environment member 100.

[0122] As shown in Figure 4, if a circle C1 is drawn with the first main spindle position D11 as the center and the distance from the first main spindle position D11 to the first sub-spindle position D21 as the radius, the seventh sub-spindle position D27 lies on this circle C1, and the connecting line between the seventh sub-spindle position D27 and the second sub-spindle position D22 becomes the secant line of this circle C1.

[0123] In the third stage of movement, the door body 2 has a movement component that moves away from the box body 1 with respect to the main axis. In this process, in order to increase the opening angle of the door body, the door body 2 may be allowed to move outward with respect to the main axis 31, i.e., away from the box body 1, provided that the external environmental member 100 does not interfere with the door body 2.

[0124] As the opening angle of the door body 2 increases further, the process enters a fourth stage. As shown in Figure 7, in the fourth stage, the main shaft 31 moves along the second main shaft trajectory line 312 to the fourth main shaft position D14 (not shown). Here, the fourth main shaft position D14 is located between the first main shaft position D11 and the third main shaft position D13. The door body 2 rotates from the third opening angle to the fourth opening angle. The fourth opening angle is greater than the third opening angle. When the door body 2 has moved to the fourth opening angle, the main shaft 31 has moved exactly to the fourth main shaft position D14.

[0125] The sub-shaft 32 moves along the second sub-shaft trajectory line 322 to the third sub-shaft position D23, at which point the opening angle of the door body 2 increases from 70 degrees to approximately 80 degrees. When the sub-shaft 32 has moved to the third sub-shaft position D23, the door body 2 has moved to the fourth opening angle, which is 80 degrees.

[0126] In the fourth stage of movement, the door body 2 has a movement component that moves toward the external environmental member 100 relative to the main shaft 31. That is, the door body 2 has a movement component that moves toward the outside relative to the main shaft 31, thereby making the opening of the door body 2 larger and facilitating the removal of items. At the same time, because the opening angle of the door body 2 is relatively large, in order to ensure the stability of the door body 2 after opening, the door body 2 also has a movement component that moves toward the box body 1 relative to the main shaft 31, that is, the door body 2 has a movement component that moves toward the rear. Here, "rear" refers to the direction opposite to the opening direction of the storage space 10.

[0127] As the opening angle of the door body 2 increases further, the process enters a fifth stage. As shown in Figure 7-8, in the fifth stage, the main shaft 31 moves along the second main shaft trajectory line 312 from the fourth main shaft position D14 to the third main shaft position D13. The door body 2 rotates from the fourth opening angle to the fifth opening angle. The fifth opening angle is greater than the fourth opening angle, and in this embodiment, the fifth opening angle is 90 degrees.

[0128] The door body 2 still has a movement component relative to the main shaft 32 in a direction toward the external environmental member 100, that is, the door body 2 moves outward to enlarge the opening of the door body 2 and facilitate the removal of items. At the same time, the door body 2 has a movement component relative to the main shaft 32 in a direction toward the box body 1, that is, the door body 2 moves toward the rear.

[0129] During this process, the sub-axis 32 moves along the third sub-axis trajectory line 323 from the third sub-axis position D23 to the fourth sub-axis position D24. When it is at the fourth sub-axis position D24, the opening angle of the door body 2 is exactly the fifth opening angle.

[0130] As shown in Figure 4, when a circle C2 is drawn with the first main shaft position D11 as the center and the distance between the first main shaft position D11 and the fourth sub-shaft position D24 as the radius, circles C2 and C1 are concentric circles, and the third sub-shaft position D23 is located between circles C2 and C1. During the movement process from the third sub-shaft position D23 to the fourth sub-shaft position D24, the third sub-shaft trajectory line 323, to which the sub-shaft 32 moves, has variable curvature.

[0131] Furthermore, as the opening angle of the door body 2 increases, the process enters a sixth stage. As shown in Figure 8-9, in the sixth stage, the main shaft 31 moves along the third main shaft trajectory line 313 from the third main shaft position D13 to the first main shaft position D11. During this process, the opening angle of the door body 2 increases from the fifth opening angle to the sixth opening angle. Here, the sixth opening angle is greater than the fifth opening angle, and the sixth opening angle is greater than 90 degrees; in this embodiment, the sixth opening angle is 110 degrees.

[0132] The door body 2 has a movement component that moves away from the external environmental member 100 relative to the main shaft 31, preventing the external environmental member 100 from interfering with the door body 2. That is, the door body 2 has a movement component that moves inward relative to the main shaft 31. At the same time, the door body 2 has a movement component that moves away from the box body 1 relative to the main shaft 31. That is, the door body 2 has a movement component that moves forward relative to the main shaft 31, making it easier for the door body 2 to open at a larger angle. In this way, during the opening process of the door body 2, the outer edge 23 of the door body 2 first moves in a direction toward the main shaft 31, then moves in a direction toward the main shaft 31, and finally moves in a direction toward the main shaft 31. Because the outer edge 23 of the door undergoes the above movement process, interference from the external environmental member 100 is effectively avoided, and the opening angle of the door body 2 is also better considered, making it easier to remove items.

[0133] In the sixth stage, the sub-shaft 32 moves along the third sub-shaft trajectory line 323 from the fourth sub-shaft position D24 to the fifth sub-shaft position D25. When it reaches the fifth sub-shaft position D25, the door body 2 opens to the sixth opening angle, i.e., the maximum angle of 110 degrees. At this time, the main shaft 31 has moved to its initial first main shaft position D11. As shown in Figure 4, the fifth sub-shaft position D25 is located exactly on the circle C1.

[0134] Another embodiment of the present invention further discloses a refrigerator, which is a built-in refrigerator, and the refrigerator includes the storage device. As understood, the refrigerator may further include a cooling system that supplies cold to the internal storage space 10 or other locations in the storage device, so that the internal storage space 10 constitutes the refrigerator and / or freezer compartment of the refrigerator. Preferably, the internal storage space 10 may be provided with structures such as shelves, drawers and / or bottle racks, and the cooling system may include components such as a compressor and a condenser.

[0135] The refrigerator disclosed in this embodiment, after being assembled in the corresponding position, can better avoid interference from external environmental components during the opening process of the door body 2, thereby reducing the gap between the refrigerator and the external environmental component without affecting the opening of the refrigerator door body, and making the assembled refrigerator more aesthetically pleasing.

[0136] It should be understood that although this specification is described according to embodiments, each embodiment does not necessarily contain only one independent technical solution, and this manner of description in the specification is merely for clarity, and those skilled in the art can consider the specification as a whole and appropriately combine the technical solutions in each embodiment to form other embodiments that are understandable to those skilled in the art.

[0137] The series of detailed descriptions listed above are merely specific descriptions of the feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent embodiments or modifications that do not depart from the technical idea of ​​this application should be included within the scope of protection of this application.

Claims

1. A storage device, It includes a box body with storage space, a door body, and a hinge assembly, The door body is pivotably attached to the box body via the hinge assembly, and opens and closes the storage space. The hinge assembly includes a main shaft, a secondary shaft, a main groove that fits the main shaft, and a secondary groove that fits the secondary shaft. In the opening process of the door body, the door body rotates with respect to the main shaft, and the main shaft slides with respect to the main groove, and the sub-shaft slides with respect to the sub-groove, During the opening process of the door body, the main shaft moves sequentially along the first main shaft trajectory, the second main shaft trajectory, and the third main shaft trajectory within the main groove. Storage device.

2. The sum of the lengths of the first main axis trajectory and the third main axis trajectory is equal to the length of the second main axis trajectory. The storage device according to claim 1.

3. The end of the third main axis trajectory is located at the beginning of the first main axis trajectory. The storage device according to claim 2.

4. When the door body is in the closed state, the starting end of the first main shaft trajectory is located at the midpoint of the main groove. The storage device according to claim 3.

5. When the main shaft is located at the starting end of the first main shaft trajectory, the door body is in a closed state. When the aforementioned main shaft moves to the end of the third main shaft trajectory, the door body reaches its maximum opening angle. The storage device according to claim 3.

6. The door body has a door side wall, a door front wall, and a door outer edge where the door side wall and the door front wall intersect. The box has vertically positioned side walls and a front wall, and the opening of the storage space is provided in the front wall of the box. The storage device is provided on one side of the external environmental member, and the side wall of the box is facing the first side position of the external environmental member. When the main shaft moves along the first main shaft trajectory, the door body has a movement component in the direction away from the external environmental member with respect to the main shaft. When the main shaft moves along the second main shaft trajectory, the door body has a movement component in the direction toward the external environmental member relative to the main shaft. When the main shaft moves along the third main shaft trajectory, the door body has a movement component in the direction away from the external environmental member with respect to the main shaft. The storage device according to claim 2.

7. The hinge assembly has a support member fixed to the box body, the main shaft and the sub-shaft are fixed to the support member, and the main groove and the sub-groove are provided in the door body. The storage device according to claim 6.

8. The main groove is generally elliptical in shape, protruding away from the door side wall, its overall extension direction intersects diagonally with the door side wall and the door front wall, and its overall extension direction extends toward the outer edge of the door. The storage device according to claim 7.

9. When the main shaft moves along the first main shaft trajectory, the main shaft moves relative to the door body in a direction approaching the front wall of the door and in a direction approaching the side wall of the door, and the main shaft moves relative to the door body in a direction approaching the outer edge of the door. When the main shaft moves along the second main shaft trajectory, the main shaft moves relative to the door body in a direction away from the front wall of the door and away from the side wall of the door, and the main shaft moves relative to the door body in a direction away from the outer edge of the door. When the main shaft moves along the third main shaft trajectory, the main shaft moves relative to the door body in a direction approaching the front wall of the door and in a direction approaching the side wall of the door, and the main shaft moves relative to the door body in a direction approaching the outer edge of the door. The storage device according to claim 8.

10. During the opening process of the door body, the sub-axle moves sequentially along the first sub-axle trajectory, the second sub-axle trajectory, the third sub-axle trajectory, and the fourth sub-axle trajectory. When the sub-shaft moves along the first sub-shaft trajectory, the door body rotates around the main shaft, and the main shaft is positioned at the first main shaft position within the main groove. When the sub-axis moves along the second sub-axis trajectory, the main axis moves relative to the door body from the first main axis position toward the outer edge of the door along the first main axis trajectory, and then moves toward the outer edge of the door along the second main axis trajectory. As the sub-axis moves along the third sub-axis trajectory, the main axis continues to move away from the outer edge of the door along the second main axis trajectory relative to the door body. When the sub-axis moves along the fourth sub-axis trajectory, the main axis moves in a direction toward the outer edge of the door along the third main axis trajectory relative to the door body. The storage device according to claim 6.

11. The first sub-axis trajectory is an arc centered on the first main axis position, and the second sub-axis trajectory is a straight line overall. The starting end of the second sub-axis trajectory is located at the end of the first sub-axis trajectory, and the inclination of the tangent to the end of the first sub-axis trajectory is greater than the inclination in the direction of extension of the second sub-axis trajectory. The third sub-axis trajectory is curved overall, the fourth sub-axis trajectory is straight overall, the radius of curvature of the first sub-axis trajectory is smaller than the radius of curvature of the third sub-axis trajectory, and / or the curvature of the first sub-axis trajectory is greater than the curvature of the third sub-axis trajectory. The storage device according to claim 10.

12. The extension direction of the second sub-axis trajectory line intersects with the extension direction of the fourth sub-axis trajectory line. When the sub-axis moves along the second sub-axis trajectory, the sub-axis moves relative to the door body in a direction away from the front wall of the door and towards the side wall of the door. When the sub-axis moves along the fourth sub-axis trajectory, the sub-axis moves relative to the door body in a direction toward the front wall of the door and toward the side wall of the door, and the sub-axis moves toward the outer edge of the door. The storage device according to claim 11.

13. The main shaft, the sub-shaft and the door body are When the sub-shaft moves to the end of the first sub-shaft trajectory, the main shaft maintains the first main shaft position relative to the main groove, and the door body opens to the first opening angle. When the main shaft moves to the end of the first main shaft trajectory, the sub-shaft is positioned on the second sub-shaft trajectory, and the door body opens to the second opening angle. When the main shaft moves and returns to the first main shaft position, the sub-shaft is located on the second sub-shaft trajectory, and the door body opens to the third opening angle. When the sub-shaft moves to the end of the second sub-shaft trajectory, the main shaft is positioned between its first main shaft position and the end of the second main shaft trajectory, and the door body opens to the fourth opening angle. When the sub-shaft moves to the end of the third sub-shaft trajectory, the main shaft is located at the end of the second main shaft trajectory, the main shaft is located at the end of the main groove, the door body opens to the fifth opening angle, and, When the sub-axis moves to the end of the fourth sub-axis trajectory, the main axis moves to the end of the third main axis trajectory and returns to the first main axis position, and the door body opens to the sixth opening angle, satisfying at least one of the following relationships: The first opening angle, the second opening angle, the third opening angle, the fourth opening angle, the fifth opening angle, and the sixth opening angle increase in sequence. The storage device according to claim 10.

14. The door body has a door side wall, a door front wall, and a door outer edge where the door side wall and the door front wall intersect, the box body has a box body side wall and a box body front wall that are provided vertically, and the opening of the storage space is provided in the box body front wall. When the door body is in the closed state, the vertical distance between the main shaft and the front auxiliary surface is smaller than the vertical distance between the sub-shaft and the front auxiliary surface, where the front auxiliary surface is parallel to the front wall of the door and the outer edge of the door is located within the front auxiliary surface. When the door body is in the closed state, the vertical distance between the main shaft and the side auxiliary surface is smaller than the vertical distance between the sub-shaft and the front auxiliary surface, where the side auxiliary surface is provided so as to be parallel to or overlapping with the outer edge of the door, and the outer edge of the door is located within the side auxiliary surface. The storage device according to claim 1.

15. The first, second, and third main axis trajectories each include at least a curved portion, and that curved portion protrudes toward the side away from the door side wall, and the first, second, and third main axis trajectories as a whole form a substantially elliptical arc. The storage device according to claim 14.

16. The door body has a door side wall, a door front wall, and a door outer edge where the door side wall and the door front wall intersect. When the door body moves along the first and third main axis trajectories, the main axis moves toward the door outer edge, and when it moves along the second main axis trajectory, the main axis moves toward the door outer edge. The storage device according to claim 1.

17. When the aforementioned main shaft moves along the third main shaft trajectory, the opening angle of the door body is 90° or more. The storage device according to claim 16.

18. It is a refrigerator, A storage device including the one described in any one of claims 1 to 17, refrigerator.

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