Hinge structure, refrigerator, and door hovering control method

Abstract

The present invention proposes a hinge structure, a refrigerator and a door hovering control method, wherein the hinge structure includes a mounting plate, a fixed shell and a rotating part, a stopper and an elastic part located in the fixed shell; the mounting plate is arranged on the box body; both ends of the rotating part are rotatably connected to the door body and the mounting plate, and the outer side of the rotating part has a main serration portion; the side of the stopper close to the rotating part has a matching serration portion; the elastic part is slidably arranged on the side of the stopper away from the rotating part, and when the elastic force of the elastic part is released, the stopper is pushed to a position where the matching serration portion and the main serration portion are engaged, so that the door body hovers; the present invention ensures the reliability of the hovering function structure while realizing the door body hovering, improves the user experience, and solves the pain point problem of the traditional door closer running-in failure.

Description

Technical Field

[0001] The present invention belongs to the field of refrigerators, and more specifically, relates to a hinge structure, a refrigerator, and a door hovering control method. Background Art

[0002] The intelligentization of refrigerators is an important trend in the home appliance industry, which brings users a more convenient, intelligent and healthy life experience.

[0003] With the continuous advancement of technology and the continuous expansion of the market, I believe that smart refrigerators will play a more important role in the future. Among them, realizing automatic hovering of the refrigerator door is also an important direction for the future development of smart refrigerators.

[0004] Secondly, traditional refrigerator door opening and closing angle limits are usually achieved through the cooperation of plastic door closers and hinges to achieve the maximum opening angle and tight closure of the refrigerator door. The door opening angle is closely related to the cooperation between the plastic door closer and the hinge. The refrigerator door opening angle is difficult to control and is prone to deviation, resulting in a poor door opening experience, which can easily lead to problems such as the refrigerator door hitting the cabinet and the refrigerator leaking cold air. At the same time, as the refrigerator door is opened and closed more frequently, the door closer will gradually wear out, which can easily lead to failure of the door closer and hinge cooperation, resulting in the door not closing tightly, affecting the normal use of the refrigerator.

[0005] Later, someone in the industry proposed a solution to achieve the door hovering function, such as Figure 1 、 Figure 2 As shown, the design primarily adds a concave recess and a convex ridge to the mating surfaces of the door closer 11 and hinge 12. This allows the door 22 to hover during opening and closing. While this structure is simple and easy to implement, the door closer 11 is a plastic component, and the convex ridge and concave recess create an interference fit during relative rotation. This repeated interference friction during rotation causes significant wear and tear on the door closer 11, resulting in poor reliability and a high risk of user complaints.

[0006] Therefore, how to propose a more reliable door hovering solution is an urgent problem that needs to be solved in the industry. Summary of the Invention

[0007] The purpose of the present invention is to propose a hinge structure, a refrigerator and a door hovering control method, which realizes the door hovering and replaces the traditional refrigerator door closer limiter, solving the pain point problem of the traditional door closer running-in failure.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] The present invention first proposes a hinge structure for connecting a box body and a door body, the hinge structure comprising:

[0010] A mounting plate, arranged on the box body;

[0011] A fixed housing is provided on the door body and has a first accommodation position and a second accommodation position adjacent to each other;

[0012] a rotating member located in the first accommodation position, with both ends of the rotating member being rotatably connected to the door body and the mounting plate, and a main serration portion being provided on the outer side of the rotating member;

[0013] a rotation-stopping member, located in the second accommodation position and movably engaged with the rotating member, wherein a side of the rotation-stopping member close to the rotating member has a matching serration portion;

[0014] An elastic member is located in the second accommodation position and is slidably arranged on the side of the anti-rotation member away from the rotating member. When the elastic force of the elastic member is released, the anti-rotation member is pushed to the position where the matching serration portion and the main serration portion are engaged, thereby causing the door body to suspend.

[0015] Furthermore, the mating serration portion includes a first mating serration portion and a second mating serration portion which are spaced apart and arranged on the same side of the stop member; wherein, when the first mating serration portion corresponds to the main serration portion, the stop member is in a door-opening direction stop state, and when the second mating serration portion corresponds to the main serration portion, the stop member is in a door-closing direction stop state; the stop member switches between the door-opening direction stop state and the door-closing direction stop state through a switching component.

[0016] Furthermore, the switching assembly includes a shifting member and a driving member, wherein the shifting member is partially inserted into the anti-rotation member, and the shifting member drives the rotating member to rotate under the action of the driving member, so that the rotating member switches between the anti-rotation state in the door opening direction and the anti-rotation state in the door closing direction.

[0017] Furthermore, a first recess and a second recess are provided on a side of the anti-rotation member away from the rotating member, and a power ball is connected to one end of the elastic member; wherein, when the anti-rotation member is in a anti-rotation state in the door opening direction, the power ball is placed in the first recess, and when the anti-rotation member is in a anti-rotation state in the door closing direction, the power ball is placed in the second recess.

[0018] Furthermore, the main serration portion is located on at least a portion of the side surface of the rotating member, and the number of teeth in the main serration portion is positively correlated with the maximum door opening angle.

[0019] Furthermore, the fixed shell includes a bottom box and a cover plate, the bottom box has the first accommodation position and the second accommodation position, and the cover plate is arranged at the opening of the bottom box.

[0020] Furthermore, the bottom box is detachably connected to the cover plate via a plurality of bolts.

[0021] Furthermore, the mounting plate is detachably connected to the box body via a plurality of screws.

[0022] The present invention further provides a refrigerator, comprising a cabinet and a door, wherein the door is rotatably connected to the cabinet via the hinge structure as described above.

[0023] The present invention also proposes a door hovering control method, which is applied to the refrigerator as described above, comprising:

[0024] When the stopper is in the door opening direction stop state, it is determined whether the opening angle of the door body reaches the preset maximum door opening angle;

[0025] If so, the stopper is directly controlled to switch to the closing direction stop state;

[0026] If not, when it is detected that the pushing force at the door handle reaches the preset door closing force and / or the temperature at the door handle reaches the preset temperature, the stopper is controlled to switch to the door closing direction stop state.

[0027] Compared to existing technologies, the hinge structure, refrigerator, and door hovering control method proposed in the present invention offer the following advantages: The hinge structure proposed in the present invention eliminates the need for conventional door closers, thus resolving the problem of traditional door closer failure due to wear. Furthermore, by engaging the main serrations of the rotating member in the hinge structure with the mating serrations of the anti-rotation member, the present invention limits the door opening angle, enabling the door to hover even before reaching its limit position, thus preventing unnecessary damage to surrounding items during the door opening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a structural diagram of a refrigerator in the prior art;

[0030] Figure 2 for Figure 1 A in the middle is an enlarged structural diagram;

[0031] Figure 3 Schematic diagram of the structure of the refrigerator in the present invention;

[0032] Figure 4 Schematic diagram of the explosion of the hinge structure of the present invention;

[0033] Figure 5This is a schematic structural diagram of the stop rotation member of the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the hinge structure of the present invention after removing the base and the mounting plate;

[0035] Figure 7 This is a schematic structural diagram of the hinge structure of the present invention after removing the cover plate and the mounting plate;

[0036] Figure 8 This is a structural schematic diagram of the anti-rotation member of the present invention in a state of anti-rotation in the door opening direction;

[0037] Figure 9 This is a schematic diagram of the structure when the door is opened in the present invention;

[0038] Figure 10 This is a structural diagram of the anti-rotation member of the present invention in a state of anti-rotation in the door closing direction;

[0039] Figure 11 This is a schematic diagram of the structure of the present invention when the door is closed;

[0040] Among them, the main marks of the drawings in the figure are:

[0041] 11. Door closer; 12. Hinge;

[0042] 21. Box body; 22. Door body;

[0043] 3. Mounting plate;

[0044] 4. Rotating member; 41. Main sawtooth portion;

[0045] 5. Anti-rotation member; 50. Matching serrations; 51. First matching serrations; 52. Second matching serrations; 53. First recess; 54. Second recess;

[0046] 6. Elastic parts;

[0047] 7. Shifter;

[0048] 8. Power Ball;

[0049] 9. Fixed shell; 91. Bottom box; 92. Cover plate; 901. First accommodation position; 902. Second accommodation position. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] Smart refrigerators are a major trend in the home appliance industry, offering users a more convenient, intelligent, and healthy lifestyle experience. With the continuous advancement of technology and the expansion of the market, smart refrigerators are expected to play an even more important role in the future. Automatic door hovering is a key development direction for smart refrigerators. Traditional refrigerator door angle limits typically rely on a plastic door closer working in conjunction with a hinge to achieve maximum door opening angle and secure closure. The door opening angle is closely tied to the fit between the plastic door closer and the hinge. Controlling the door opening angle is difficult and prone to deviation, resulting in a poor door opening experience and potentially causing problems such as the door colliding with cabinets and leaking cold air. Furthermore, as the door is opened and closed frequently, the door closer gradually wears out, potentially leading to failure of the door closer and hinge, resulting in a loose door closure and compromising the refrigerator's functionality. While some improvements have been proposed to achieve door hovering, these rely on the fit of concave and convex surfaces. Specifically, a concave recess and a convex ridge are added to the mating surface between the door closer and the hinge. This allows the door to hover during opening and closing. While this structure is simple and easy to implement, the door closer is a plastic component, and the ridge and recess create an interference fit during relative rotation. This friction during rotation causes significant wear and tear on the door closer, resulting in poor reliability and a high risk of user complaints.

[0052] Based on this, the present invention proposes a hinge structure, a refrigerator and a door hovering control method, which ensures the reliability of the hovering function structure while realizing the door hovering, improves the user experience, and solves the pain point problem of the traditional door closer running-in failure.

[0053] Please also refer to Figure 3 、 Figure 4 The hinge structure proposed by the present invention is used to connect the box body 21 and the door body 22, and the hinge structure at least includes:

[0054] The mounting plate 3 is provided on the box body 21;

[0055] The fixed housing 9 is provided on the door body 22 and has a first accommodation position 901 and a second accommodation position 902 adjacent to each other;

[0056] The rotating member 4 is located in the first accommodation position 901. Both ends of the rotating member 4 are rotatably connected to the door body 22 and the mounting plate 3. The outer side of the rotating member 4 has a main serration portion 41.

[0057] The anti-rotation member 5 is located in the second accommodation position 902 and is movably engaged with the rotating member 4. The anti-rotation member 5 has a mating serration portion 50 on a side close to the rotating member 4.

[0058] The elastic member 6 is located in the second accommodating position 902 and is slidably arranged on the side of the anti-rotation member 5 away from the rotating member 4. When the elastic force of the elastic member 6 is released, the anti-rotation member 5 is pushed to the position where the matching serrated portion 50 is engaged with the main serrated portion 41, thereby causing the door body 22 to hover.

[0059] The hinge structure proposed by the present invention includes a mounting plate 3, a fixed housing 9, a rotating member 4 having a main serration portion 41, a stop member 5 having a matching serration portion 50, and an elastic member 6. It not only connects the box body 21 and the door body 22, but also enables the door body 22 to suspend. In actual application, when the door body 22 is opened or closed, the rotating member 4 rotates with the door body 22 under external force and pushes the stop member 5 to a position where the elastic member 6 is compressed. When the external force is sufficiently small or disappears, the elastic force of the elastic member 6 is released, pushing the stop member 5 to a position where the matching serration portion 50 engages with the main serration portion 41, thereby causing the door body 22 to suspend.

[0060] The hinge structure proposed in the present invention eliminates the need for the traditional door closer 11, thus resolving the problem of wear-related failure of the traditional door closer 11. Furthermore, the present invention limits the door opening angle by meshing the main serrations 41 of the rotating member 4 with the mating serrations 50 of the anti-rotation member 5 in the hinge structure. This allows the door 22 to hover even before reaching its limit position, thus preventing unnecessary damage to surrounding items during the opening of the door 22.

[0061] Further preferably, in order to realize that the door body 22 can be hovered arbitrarily during the process of opening and closing the door, Figure 4 、 Figure 5 As shown, the mating serrations 50 include a first mating serration 51 and a second mating serration 52 which are spaced apart and arranged on the same side of the stop member 5; wherein, when the first mating serration 51 corresponds to the main serration 41, the stop member 5 is in a door-opening direction stop state, and when the second mating serration 52 corresponds to the main serration 41, the stop member 5 is in a door-closing direction stop state; the stop member 5 switches between the door-opening direction stop state and the door-closing direction stop state through a switching component.

[0062] In actual application, when the stopper 5 is in the state of stopping in the door opening direction, the door body 22 can be suspended arbitrarily in the door opening direction; and when the stopper 5 is in the state of stopping in the door closing direction, the door body 22 can be suspended arbitrarily in the door closing direction.

[0063] More preferably, Figure 4 As shown, the switching assembly includes a shifting member 7 and a driving member. The shifting member 7 is partially inserted into the anti-rotation member 5. Under the action of the driving member, the shifting member 7 drives the rotating member 4 to rotate, so that the anti-rotation member 5 is switched between the anti-rotation state in the door opening direction and the anti-rotation state in the door closing direction.

[0064] In actual application, the driving member can be a motor, which drives the shift member 7 to rotate. At the same time, the rotation of the shift member 7 drives the stop member 5 to rotate, changing the state of the stop member 5, that is, switching the stop member 5 to the stop state in the door opening direction or the stop state in the door closing direction.

[0065] More preferably, Figure 4 、 Figure 5 As shown, a first recessed portion 53 and a second recessed portion 54 are provided on the side of the stop member 5 away from the rotating member 4, and a power ball 8 is connected to one end of the elastic member 6; wherein, when the stop member 5 is in the stop state in the door opening direction, the power ball 8 is placed in the first recessed portion 53, and when the stop member 5 is in the stop state in the door closing direction, the power ball 8 is placed in the second recessed portion 54.

[0066] In actual application, since the external force is large enough to drive the door body 22 to rotate, during the rotation of the door body 22, the rotating part 4 rotates synchronously with the door body 22, and the rotating part 4 will apply a thrust to the stop part 5 when rotating. Under the thrust, the stop part 5 pushes the power ball 8 to apply a lateral force to the spring, thereby compressing the elastic part 6; subsequently, when the external force becomes smaller (until the external force disappears) and the door body 22 needs to hover, the elastic force of the elastic part 6 is released, pushing the power ball 8 to move laterally, and the power ball 8 squeezes the stop part 5 and pushes the stop part 5 to the position where the mating serrated portion 50 engages with the main serrated portion 41, completing the stop of the rotation of the rotating part 4 by the stop part 5, and realizing the arbitrary hovering of the door body 22.

[0067] The force is transmitted between the elastic member 6 and the anti-rotation member 5 via the power ball 8. This transmission method is more efficient, faster and more stable.

[0068] More preferably, Figure 4 As shown, the main serration portion 41 is located on at least part of the side surface of the rotating member 4, and the number of teeth in the main serration portion 41 is positively correlated with the maximum door opening angle.

[0069] It should be noted that currently available refrigerators typically use a plastic door closer 11 to limit the door opening angle. If the user applies excessive force when opening the door, this can damage the door closer 11, potentially also damaging the door body 22. The present invention eliminates the traditional door closer 11 and uses theoretical calculations to convert the door opening angle into the number of teeth on the rotating member 4. This allows for more precise door opening angle control and more intuitive and rapid door opening and closing control.

[0070] More preferably, Figure 3 、 Figure 4 As shown, the fixed housing 9 includes a bottom box 91 and a cover plate 92. The bottom box 91 has a first receiving position 901 and a second receiving position 902. The cover plate 92 is arranged to cover the opening of the bottom box 91. This makes it convenient to place other components inside the fixed housing 9. At the same time, the fixed housing 9 can provide protection and waterproof and dustproof functions.

[0071] More preferably, Figure 4 As shown, the bottom box 91 is detachably connected to the cover plate 92 by a plurality of bolts 93, which facilitates replacement and maintenance.

[0072] More preferably, Figure 3 As shown, the mounting plate 3 is detachably connected to the box body 21 by a plurality of screws. The detachable connection between the mounting plate 3 and the box body 21 facilitates replacement and maintenance.

[0073] Please also refer to Figure 3 The refrigerator proposed in the present invention includes a box body 21 and a door body 22, and the door body 22 is rotatably connected to the box body 21 through a hinge structure.

[0074] Preferably, if Figures 4 to 7 As shown, the hinge structure includes a mounting plate 3, a fixed shell 9, a rotating member 4, a stop member 5, a power ball 8, an elastic member 6, a shifting member 7 and a driving member. Among them, the fixed shell 9 includes a bottom box 91 and a cover plate 92. The bottom box 91 has a first accommodating position 901 and a second accommodating position 902. The bottom box 91 is detachably connected to the cover plate 92 by two bolts; the rotating member 4 is located in the first accommodating position 901, and the stop member 5, the power ball 8 and the elastic member 6 are located in the first accommodating position 901; one end of the mounting plate 3 is mounted on the bottom of the box body 21 by four screws, and a fixed shaft sleeve is installed on the inner side of the bottom of the door body 22. A rotating shaft is passed through the inner side of the rotating member 4, one end of the rotating shaft is rotatably connected to the fixed shaft sleeve, and the other end of the rotating shaft is connected to the mounting plate 3 is rotatably connected; the outer side of the rotating member 4 has a main serration portion 41, and the side of the stop member 5 close to the rotating member 4 is provided with a first matching serration portion 51 and a second matching serration portion 52, and the side of the stop member 5 away from the rotating member 4 is provided with a first recessed portion 53 and a second recessed portion 54; the power ball 8 is placed in the first recessed portion 53 or the second recessed portion 54; one end of the elastic member 6 is connected to the power ball 8, and the other end of the elastic member 6 is connected to the inner side wall of the bottom box 91; a part of the shifting member 7 is passed through the inner side of the stop member 5, and the shifting member 7 is also connected to the driving member.

[0075] It should be understood that if Figures 4 and 5 and Figures 8 to 11 As shown, the stopper 5 has a door-opening direction stopper state and a door-closing direction stopper state. When the stopper 5 is in the door-opening direction stopper state, the first mating serrations 51 of the stopper 5 correspond to the main serrations 41 of the rotating member 4, and the power ball 8 is placed in the first recess 53. When the stopper 5 is in the door-closing direction stopper state, the second mating serrations 52 of the stopper 5 correspond to the main serrations 41 of the rotating member 4, and the power ball 8 is placed in the second recess 54. The shifting member 7, under the action of the driving member, drives the stopper 5 to switch between the door-opening direction stopper state and the door-closing direction stopper state.

[0076] It should be noted that the elastic member 6 is a spring. In actual application, when pulling the closed door body 22, the external force F applied by the user needs to overcome the following resistances: the suction force Fm between the door seal and the box body 21, and the friction force Fz between the fixed shaft sleeve on the door body 22 and the rotating shaft of the rotating member 4. Generally, F>Fm+Fz must be satisfied when opening the door. Because the magnitudes of the two forces Fm and Fz will also be different when the size of the door body 22 is different, the resistance that needs to be overcome to open different door bodies 22 is also different. The present invention perfectly converts this resistance into the elastic force of the elastic member 6. The standard springs corresponding to different series of refrigerators can be obtained through theoretical calculation to form a standard library, which makes the design more precise. After overcoming the resistance and opening the door, the door body 22 continues to rotate due to the inertia force. If the door body 22 is to be able to hover arbitrarily, this inertia force needs to be overcome. Currently, the method for achieving the hovering function of the door body 22 on the market is to add a concave design on one side and a convex design on the other side on the mating surface of the door closer 11 and the hinge 12. The combined concave and convex surfaces increase friction, thereby achieving hovering. The disadvantage of this method is that the door closer 11 is a plastic component, which easily wears out after long-term use, causing the hovering function to fail. The hinge structure proposed in the present invention can automatically achieve the door opening and closing limit, eliminating the need for a traditional door closer 11, thus solving the problem of failure caused by wear in traditional door closers 11.

[0077] Based on the specific structure of the aforementioned refrigerator, the hovering control method of the door 22 proposed in the present invention includes the following steps:

[0078] When the stop member 5 is in the door opening direction stop state, it is determined whether the opening angle of the door body 22 reaches the preset maximum door opening angle;

[0079] If so, the stopper is directly controlled to switch to the closing direction stop state;

[0080] If not, when it is detected that the pushing force at the door handle reaches the preset door closing force and / or the temperature at the door handle reaches the preset temperature, the stopper is controlled to switch to the door closing direction stop state.

[0081] In actual application, the door body 22 realizes arbitrary hovering in the process of opening and closing the door in the same principle. The conversion process is achieved by the movement of the shift member 7. The following two cases are described:

[0082] Case 1: When the user opens the door 22 to the limit position (normally set to 105 degrees), the controller built into the refrigerator sends a command to the driving member (such as a motor), which drives the shifting member 7 to move, changing the state of the rotation-stopping member 5, and realizing the hovering conversion between the opening and closing directions of the door;

[0083] Case 2: After the door body 22 is opened, the user puts food into the box body 21 and prepares to close the door, but the door body 22 has not reached the limit position. Since the door handle of the door body 22 is equipped with a temperature sensor and a pressure sensor, when it is detected that the thrust at the door handle is higher than the preset closing force and the temperature at the door handle is higher than the preset temperature, the built-in controller of the refrigerator sends a command to the driving part (such as a motor), and the driving part drives the shifting part 7 to move, changing the state of the anti-rotating part 5, thereby realizing the hovering conversion in the two directions of opening / closing the door.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hinge structure for connecting a box body and a door body, characterized in that: The hinge structure comprises: A mounting plate, arranged on the box body; A fixed housing is provided on the door body and has a first accommodation position and a second accommodation position adjacent to each other; a rotating member located in the first accommodation position, with both ends of the rotating member being rotatably connected to the door body and the mounting plate, and a main serration portion being provided on the outer side of the rotating member; a rotation-stopping member, located in the second accommodation position and movably engaged with the rotating member, wherein a side of the rotation-stopping member close to the rotating member has a matching serration portion; An elastic member is located in the second accommodation position and is slidably arranged on the side of the anti-rotation member away from the rotating member. When the elastic force of the elastic member is released, the anti-rotation member is pushed to the position where the matching serration portion and the main serration portion are engaged, thereby causing the door body to suspend.

2. The hinge structure according to claim 1, wherein: The mating serrations include a first mating serration and a second mating serration which are spaced apart on the same side of the stop member; wherein, when the first mating serration corresponds to the main serration, the stop member is in a door-opening direction stop state, and when the second mating serration corresponds to the main serration, the stop member is in a door-closing direction stop state; the stop member switches between the door-opening direction stop state and the door-closing direction stop state through a switching assembly.

3. The hinge structure according to claim 2, wherein: The switching assembly includes a shifting member and a driving member. The shifting member is partially inserted into the anti-rotation member. The shifting member drives the rotating member to rotate under the action of the driving member, so that the rotating member switches between the anti-rotation state in the door opening direction and the anti-rotation state in the door closing direction.

4. The hinge structure according to claim 2, wherein: The anti-rotation member is provided with a first recessed portion and a second recessed portion on a side away from the rotating member, and a power ball is connected to one end of the elastic member; wherein, when the anti-rotation member is in a state of anti-rotation in the door-opening direction, the power ball is placed in the first recessed portion, and when the anti-rotation member is in a state of anti-rotation in the door-closing direction, the power ball is placed in the second recessed portion.

5. The hinge structure according to claim 1, wherein: The main serration portion is located on at least a portion of the side surface of the rotating member, and the number of teeth in the main serration portion is positively correlated with the maximum door opening angle.

6. The hinge structure according to claim 1, wherein: The fixed shell includes a bottom box and a cover plate. The bottom box has the first accommodation position and the second accommodation position. The cover plate is arranged at the opening of the bottom box.

7. The hinge structure according to claim 6, wherein: The bottom box is detachably connected to the cover plate via a plurality of bolts.

8. The hinge structure according to claim 1, wherein: The mounting plate is detachably connected to the box body via a plurality of screws.

9. A refrigerator, comprising a box body and a door body, characterized in that: The door body is rotatably connected to the box body through the hinge structure according to any one of claims 1 to 8.

10. A door hovering control method, applied to the refrigerator according to claim 9, characterized in that: include: When the stopper is in the door opening direction stop state, it is determined whether the opening angle of the door body reaches the preset maximum door opening angle; If so, the stopper is directly controlled to switch to the closing direction stop state; If not, when it is detected that the pushing force at the door handle reaches the preset door closing force and / or the temperature at the door handle reaches the preset temperature, the stopper is controlled to switch to the door closing direction stop state.

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