CN218645844U - Refrigerator with a door - Google Patents

Abstract

The application relates to the technical field of low-temperature storage, and discloses a refrigerator which comprises a refrigerator body, a main refrigerator door, an auxiliary refrigerator door, a main door magnet group and an auxiliary door magnet group, wherein a second accommodating space is formed in the main refrigerator door; the auxiliary refrigerator door can be arranged on the main refrigerator door in an opening and closing way; the main door magnet group is arranged in the main refrigerator door and comprises a plurality of main door magnets, and the main door magnets are annularly arranged and are alternately arranged towards the N pole and the S pole of one side of the auxiliary door refrigerator; vice door magnet group rotationally sets up in vice refrigerator door, including a plurality of vice door magnet, a plurality of vice door magnet ring-type sets up, and set up in turn towards one side N level and S level of main refrigerator door, thereby a plurality of main door magnet attract each other with a plurality of vice door magnet one-to-ones when vice door magnet group rotates to first angle makes vice refrigerator door sealed, thereby a plurality of main door magnet and a plurality of vice door magnet one-to-ones repel each other when vice door magnet group receives the drive arrangement drive to rotate to the second angle thereby make vice refrigerator door easily open.

Description

Refrigerator

Technical Field

The application relates to the technical field of low-temperature storage, for example to a refrigerator.

Background

The folding door refrigerator constructs relatively independent storage space through the main door of the refrigerator so as to store common articles, and a user opens the auxiliary door arranged on the main door of the refrigerator to take and place the common articles, so that the use of the user is facilitated, and the number of times of opening the door of the refrigerator can be reduced, thereby reducing the energy consumption of the refrigerator. The folding-door refrigerator with the same door opening direction has the possibility that the main door and the auxiliary door are mixed in the using process, and the main door is opened accidentally when the auxiliary door is opened or the auxiliary door is opened accidentally when the main door is opened.

Disclosed in the related art is a refrigerator including a cabinet, a main door provided at an outer side of the cabinet, and a sub-door provided at an outer side of the main door, wherein a first magnet is provided at an area of the cabinet opposite to the main door, a second magnet is provided at an area of the sub-door opposite to the main door, and an electromagnetic assembly is provided at the main door and configured to controllably or operatively generate a magnetic attraction force for attracting with the first magnet or the second magnet. The electromagnetic assembly comprises a first electromagnet and is arranged on one side of the main door, which faces the box body; the second electromagnet is arranged on one side of the main door facing the auxiliary door; and the first electromagnet and the second electromagnet are configured to be controlled to be switched on with the power supply of the second electromagnet to generate a magnetic attraction force attracting the second magnet so that the sub door is kept in a closed state, or to be controlled to be switched on with the power supply of the first electromagnet to generate a magnetic attraction force attracting the first magnet so that the main door is kept in a closed state.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

use the electro-magnet to lead to the structure of refrigerator to become complicated cost uprise, make the refrigerator door maintain closed condition moreover and open the refrigerator door and all need the electro-magnet circular telegram, can produce extra energy consumption like this, the electro-magnet is not good enough in long-time job stabilization nature in the low temperature environment of refrigerator.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a refrigerator to solve the problem of how to further improve the sealing performance of a refrigerator door and make the refrigerator door easy to open.

In some embodiments, the refrigerator comprises a refrigerator body, a main refrigerator door, a door frame, a secondary refrigerator door, a main door magnet group, a secondary door magnet group and a driving device, wherein the refrigerator body is provided with a first accommodating space, and the side edge of the refrigerator body is provided with a first opening communicated with the first accommodating space; the main refrigerator door is arranged in the first opening in an openable and closable manner, a second opening communicated with a second accommodating space is formed in the main refrigerator door, and the second opening and the first opening are positioned on the same side face of the refrigerator body; the door frame is arranged at the second opening; the auxiliary refrigerator door can be arranged on the second opening in an opening and closing manner, and is attached to the door frame in a closed state; the main door magnet group is arranged on the door frame and comprises a plurality of main door magnets, and the main door magnets are annularly arranged and are alternately arranged towards the N pole and the S pole of one surface of the auxiliary door refrigerator; the auxiliary door magnet group is rotatably arranged on the auxiliary refrigerator door and comprises a plurality of auxiliary door magnets, the plurality of auxiliary door magnets are annularly arranged and are alternately arranged in a N-level mode and an S-level mode towards one surface of the main refrigerator door, the plurality of main door magnets and the plurality of auxiliary door magnets attract each other in a one-to-one correspondence mode when the auxiliary door magnet group rotates to a first angle, and the plurality of main door magnets and the plurality of auxiliary door magnets repel each other in a one-to-one correspondence mode when the auxiliary door magnet group rotates to a second angle; and the driving device is used for driving the auxiliary door magnet group to rotate between a first angle and a second angle.

In some embodiments, the sub-gate magnet assembly further comprises a sub-gate magnet base and a plurality of first partitions, wherein the sub-gate magnet base is configured with a first annular receiving groove; the first annular accommodating groove is divided into a plurality of first accommodating units by the first partition plates, and the auxiliary door magnets are fixed in the first accommodating units in a one-to-one correspondence manner.

In some embodiments, the driving device includes a rotating shaft and a handle, wherein the rotating shaft is inserted through the secondary refrigerator door in the thickness direction, and the secondary door magnet seat is sleeved on a first end of the rotating shaft; and the handle is connected to the second end of the rotating shaft and drives the rotating shaft to rotate by rotating the handle, so that the auxiliary door magnet group is driven to rotate.

In some embodiments, the driving device further includes a torsion spring sleeved on the rotating shaft, and the torsion spring is used for enabling the auxiliary door magnet set to be at a first angle in the initial state.

In some embodiments, the sub-refrigerator door comprises a back plate, a side frame, a panel, a handle seat and a sub-door magnet cover plate, wherein the back plate is provided with a mounting hole facing the first accommodating space, and the sub-door magnet group is embedded in the mounting hole; the side frame is enclosed along the circumferential direction of the back plate; the panel is fixed on the side frame and forms an interlayer with the back plate, and the handle extends out of the panel; the handle seat is fixed in the interlayer, a through hole is formed in the handle seat, and the rotating shaft penetrates through the through hole; and the auxiliary door magnet cover plate covers the mounting hole.

In some embodiments, the main door magnet group further comprises a main door magnet base and a plurality of second partition plates, wherein the main door magnet base is configured with a second annular receiving groove; and the second partition plates are used for dividing the second annular accommodating groove into a plurality of second accommodating units, and the main door magnets are fixed in the first accommodating units in a one-to-one correspondence manner.

In some embodiments, the door frame is opened with a mounting groove facing the secondary refrigerator door, and the main door magnet set is embedded in the mounting groove.

In some embodiments, the refrigerator further comprises a damping device disposed on the sub-refrigerator door or the door frame, and the damping device is located between the sub-refrigerator door and the door frame in a closed state of the sub-refrigerator door.

In some embodiments, the damping device comprises a housing, a piston, a one-way valve, a force bearing rod and a piston spring, wherein the housing is configured with a liquid storage cavity, and a first end of the liquid storage cavity is provided with a transmission hole; the piston is arranged in the liquid storage cavity in a sliding mode, the piston divides the liquid storage cavity into a first cavity and a second cavity, the first cavity is close to the first end of the liquid storage cavity, and the piston is provided with a conducting hole and a mounting hole; the one-way valve is arranged in the mounting hole, and the conduction direction of the one-way valve is from the first cavity to the second cavity; the first end of the stress rod is connected to the piston, the second end of the stress rod penetrates through the transmission hole to extend outwards, the stress rod is connected with the transmission hole in a sliding and sealing mode, the stress rod drives the piston to move from the first position to the second position under the action of external force in the process of closing the secondary refrigerator door, and liquid in the second cavity flows to the first cavity through the conducting hole; the piston spring set up in the second end of stock solution chamber with between the piston, the external force that the atress pole received disappears the back the piston spring drive the piston returns the primary importance from the second place, liquid in the first cavity passes through the check valve with the conducting hole flow direction the second cavity.

In some embodiments, the check valve includes a hinge shaft and a flap, wherein the hinge shaft is disposed at the mounting hole; the turning plate is rotatably arranged on the hinge shaft and located on one side of the piston, when liquid flows from the first cavity to the second cavity, the turning plate is pressed on the piston under the action of liquid pressure so as to seal the mounting hole, and when the liquid flows from the second cavity to the first cavity, the turning plate is turned over under the action of the liquid pressure so as to enable the mounting hole to be in a conducting state.

The refrigerator provided by the embodiment of the disclosure can realize the following technical effects:

1. a second accommodating space is formed in the main refrigerator door to store articles with high fetching frequency, so that the door opening times can be reduced, and the heat loss of the refrigerator can be reduced;

2. the main door magnet group and the auxiliary door magnet group are matched to enable the auxiliary refrigerator door to be tightly attached to a door frame, so that the heat insulation effect of the second accommodating space is improved;

3. the driving device rotates the main door magnet group to generate repulsive force, so that the auxiliary refrigerator door can be conveniently opened in a labor-saving way, and the main refrigerator door is prevented from being opened by mistake when the auxiliary refrigerator door is opened.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

fig. 1 is a schematic structural diagram of a refrigerator provided in an embodiment of the present disclosure;

FIG. 2 is a schematic view of a main refrigerator door and a sub-refrigerator door of a refrigerator according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a main refrigerator door and a sub-refrigerator door of a refrigerator according to an embodiment of the present disclosure;

FIG. 4 is a schematic partial enlarged cross-sectional view of a main refrigerator door and a sub-refrigerator door of a refrigerator according to an embodiment of the present disclosure;

fig. 5 is an exploded schematic view of a main refrigerator door of a refrigerator provided by an embodiment of the present disclosure;

FIG. 6 is an exploded view of a secondary refrigerator door of a refrigerator provided in accordance with an embodiment of the present disclosure;

fig. 7 is an exploded view of a sub-door magnet set of a refrigerator according to an embodiment of the present disclosure;

fig. 8 is a schematic structural view of a driving device of a refrigerator according to an embodiment of the present disclosure cooperating with a sub-door magnet set;

fig. 9 is a schematic structural view of a shock-absorbing device of a refrigerator according to an embodiment of the present disclosure;

FIG. 10 is a schematic cross-sectional view of a shock absorber piston of a refrigerator according to an embodiment of the present disclosure in a first position;

FIG. 11 is a schematic cross-sectional view of a damper piston of a refrigerator according to an embodiment of the present disclosure in a second position;

fig. 12 is an exploded view of a shock absorbing device of a refrigerator according to an embodiment of the present disclosure.

Reference numerals:

100: a box body; 110: a main refrigerator door; 111: a back plate; 112: a side frame; 113: a panel; 114: a door frame; 115: a handle base; 116: a secondary door magnet cover plate; 120: a sub-refrigerator door; 130: a main door magnet group; 131: a main door magnet holder; 132: a first separator; 133: a main door magnet; 140: a sub-door magnet group; 141: a sub-door magnet base; 142: a second separator; 143: a sub-door magnet; 150: a drive device; 151: a rotating shaft; 152: a handle; 153: a torsion spring; 200: a damping device; 210: a housing; 220: a piston; 221: a via hole; 222: mounting holes; 223: a first cavity; 224: a second cavity; 230: a one-way valve; 231: a hinge axis; 232: turning over a plate; 240: a stress beam; 241: a third cavity; 242: a communicating hole; 250: a piston spring.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1 to 12, a refrigerator according to an embodiment of the present disclosure includes a refrigerator body 100, a main refrigerator door 110, a door frame 114, a sub-refrigerator door 120, a main door magnet group 130, a sub-door magnet group 140, and a driving device 150, wherein the refrigerator body 100 is configured with a first accommodating space, and a side of the refrigerator body 100 is configured with a first opening communicated with the first accommodating space; a main refrigerator door 110 openably and closably disposed in the first opening, a second opening communicating with the second receiving space is formed in the main refrigerator door 110, and the second opening and the first opening are located on the same side of the cabinet 100; a door frame 114 disposed at the second opening; a sub-refrigerator door 120 openably and closably disposed at the second opening, the sub-refrigerator door 120 being attached to the door frame 114 in a closed state; a main door magnet group 130, which is disposed on the door frame 114, and includes a plurality of main door magnets 133, wherein the plurality of main door magnets 133 are annularly disposed and alternately disposed with N poles and S poles facing one side of the sub door refrigerator; the auxiliary door magnet group 140 is rotatably arranged on the auxiliary refrigerator door 120 and comprises a plurality of auxiliary door magnets 143, the plurality of auxiliary door magnets 143 are annularly arranged and are alternately arranged in a N-level manner and an S-level manner facing one surface of the main refrigerator door 110, when the auxiliary door magnet group 140 rotates to a first angle, the plurality of main door magnets 133 and the plurality of auxiliary door magnets 143 attract each other in a one-to-one correspondence manner to realize sealing of a second accommodating space, and when the auxiliary door magnet group 140 rotates to a second angle, the plurality of main door magnets 133 and the plurality of auxiliary door magnets 143 repel each other in a one-to-one correspondence manner to realize assisted door opening; and a driving device 150 for driving the sub-door magnet group 140 to rotate between a first angle and a second angle.

In the embodiment of the present disclosure, the box body 100 forms a first accommodating space, and the first accommodating space is used for low-temperature storage. The side of the box 100 is configured with a first opening communicated with the first receiving space. The first opening is directed toward the user. The main refrigerator door 110 is openably and closably disposed in the first opening, and the main refrigerator door 110 faces a user, and the main refrigerator door 110 is opened to pick and place an article stored in the first accommodating space. The main refrigerator door 110 has a certain thickness, a second receiving space is formed inside the main refrigerator door 110, a second opening is formed in the second receiving space of the main refrigerator door 110, and the sub-refrigerator door 120 is openably and closably disposed in the second opening. The second opening and the first opening are located at the same side of the cabinet 100. The user can selectively open the main refrigerator door 110 or the sub-refrigerator door 120 to access the articles at the same operation position. The main refrigerator door 110 has a certain thickness, which can perform heat preservation and insulation effects on the first accommodating space. The refrigerator door can store articles such as yogurt and beverages, which are frequently taken and placed, in the second receiving space, so that the number of times of opening the main refrigerator door 110 can be reduced. The volume of the second accommodating space is smaller than that of the first accommodating space, and the cold loss of the refrigerator can be reduced by opening the auxiliary refrigerator door 120 instead of opening the main refrigerator door 110, so that energy conservation and emission reduction are facilitated.

The second opening of the main refrigerator door 110 is provided with a door frame 114, and the door frame 114 and the sub-refrigerator door 120 are matched to realize a complete door function. For example, in an alternative embodiment, the door frame 114 is configured with a stop edge, and the secondary refrigerator door 120 abuts against the stop edge of the door frame 114 when closed. The blocking edge plays a role in limiting and positioning the closed state of the sub-refrigerator door 120 and is matched with the sub-refrigerator door 120 to seal the second accommodating space.

The door frame 114 is provided with a main door magnet group 130, the secondary refrigerator door 120 is provided with a secondary door magnet group 140, and the main door magnet group 130 and the secondary door magnet group 140 cooperate to realize locking and power-assisted unlocking of the secondary refrigerator door 120. Specifically, the main door magnet group 130 includes a plurality of main door magnets 133, and the plurality of main door magnets 133 are arranged in a ring shape having an axis along the thickness direction of the main refrigerator door 110. The main door magnet 133 is a bar magnet having one end of N pole and the other end of S pole, and the length direction of the main door magnet 133 is along the thickness direction of the main refrigerator door 110. On the side facing the sub-refrigerator door 120, the adjacent two main door magnets 133 have opposite magnetic poles, and the two main door magnets 133 that are separated by one main door magnet 133 have the same magnetic pole.

The sub-refrigerator door 120 is provided with a sub-door magnet group 140, the sub-door magnet group 140 is rotatable, and a plane formed by the rotation of the sub-door magnet group 140 is parallel to the sub-refrigerator door 120. The sub door magnet group 140 includes a plurality of sub door magnets 143, and the plurality of sub door magnets 143 are arranged in a ring shape having an axis along the thickness direction of the sub refrigerator door 120. The sub-door magnet 143 is a bar magnet having one end of N pole and the other end of S pole, and the length direction of the sub-door magnet 143 is along the thickness direction of the sub-refrigerator door 120. On the side facing the main refrigerator door 110, the adjacent two sub-door magnets 143 have opposite magnetic poles, and the two sub-door magnets 143 spaced by one sub-door magnet 143 have the same magnetic pole.

The sub-door magnet assembly 140 can be rotated by the driving device 150. When the sub-door magnet group 140 rotates to the first angle in the closed state of the sub-refrigerator door 120, the main door magnet group 130 and the sub-door magnet group 140 are opposite to each other, and the main door magnets 133 and the sub-door magnets 143 attract each other in a one-to-one correspondence. The sub-refrigerator door 120 is attached to the door frame 114 by an attractive force between the main door magnet group 130 and the sub-door magnet group 140, thereby achieving locking of the sub-refrigerator door 120 and sealing of the second receiving space.

When the sub-door magnet 143 is rotated to the second angle in the closed state of the sub-refrigerator door 120, the main door magnet group 130 and the sub-door magnet group 140 are opposite to each other, and the main door magnets 133 and the sub-door magnets 143 repel each other in a one-to-one correspondence. The auxiliary opening of the auxiliary refrigerator door 120 is achieved by repulsive force between the main door magnet group 130 and the auxiliary door magnet group 140. Repulsion force is generated between the main door magnet group 130 and the auxiliary door magnet group 140, and when the auxiliary refrigerator door 120 is pushed outwards, inward pushing force is generated on the main refrigerator door 110, so that the main refrigerator door 110 is more attached to the refrigerator when the auxiliary refrigerator door 120 is opened, and the main refrigerator door 110 is prevented from being mistakenly opened when the auxiliary refrigerator door 120 is opened.

The driving device 150 is used for driving the sub-door magnet group 140 to rotate between a first angle and a second angle. When the sub door magnet group 140 is driven to rotate, the force is applied in a direction to cut the magnetic force lines between the main door magnet 133 and the sub door magnet 143, and the attraction force between the main door magnet group 130 and the sub door magnet group 140 becomes a repulsive force without a large force.

The main door magnet 133 and the sub door magnet 143 are permanent magnets, and no additional energy is consumed in locking the sub refrigerator door 120. Even if the driving means 150 is electrically driven, only a short time of work is done when the sub-refrigerator door 120 is opened, and the power consumption is small.

By using the refrigerator provided by the embodiment of the disclosure, the second accommodating space is constructed in the main refrigerator door 110 to store articles with high picking and placing frequency, so that the door opening times can be reduced, and the heat loss of the refrigerator can be reduced; the main door magnet group 130 and the auxiliary door magnet group 140 are matched to enable the auxiliary refrigerator door 120 to be tightly attached to the door frame 114, so that the heat preservation effect of the second accommodating space is improved; the driving device 150 rotates the auxiliary door magnet set 140 to generate repulsive force, so that the auxiliary refrigerator door 120 can be opened conveniently and laborsavingly, and the main refrigerator door 110 is prevented from being opened by mistake when the auxiliary refrigerator door 120 is opened.

Optionally, the sub-door magnet group 140 further includes a sub-door magnet base 141 and a plurality of first partition plates 142, wherein the sub-door magnet base 141 is configured with a first annular accommodating groove; the first partition plates 142 are used for dividing the first annular accommodating groove into a plurality of first accommodating units, and the sub-door magnets 143 are fixed in the first accommodating units in a one-to-one correspondence manner.

The sub-door magnet holder 141 is used to integrate the plurality of sub-door magnets 143 and to position and mount the plurality of sub-door magnets 143. Specifically, the sub-door magnet assembly 140 is configured with a first annular receiving groove, a plurality of first partition plates 142 are disposed in the first annular receiving groove, and the first annular receiving groove is divided into a plurality of sector areas by the plurality of first partition plates 142, and each sector area is a first receiving unit. The sub-door magnets 143 are fixed in the first accommodation units in a one-to-one correspondence. In this way, in the process of rotating the sub-gate magnet holder 141, the plurality of sub-gate magnets 143 are all changed in position, and the attraction force and the repulsion force with the plurality of main gate magnets 133 are switched.

Optionally, the driving device 150 includes a rotating shaft 151 and a handle 152, wherein the rotating shaft 151 penetrates through the sub-refrigerator door 120 in the thickness direction, and the sub-door magnet holder 141 is sleeved on a first end of the rotating shaft 151; and a handle 152 connected to a second end of the rotating shaft 151, wherein the rotating shaft 151 is rotated by rotating the handle 152, thereby driving the sub-door magnet assembly 140 to rotate.

The rotating shaft 151 is inserted through the sub-refrigerator door 120 in the thickness direction, and is coaxial with the sub-door magnet holder 141 and the sub-door magnet group 140. The first end of the rotation shaft 151 is located at a side of the sub-refrigerator door 120 close to the first receiving space, and the second end is located at a side of the sub-refrigerator door 120 close to the user. The handle 152 is connected to a second end of the rotation shaft 151, and the rotation shaft 151 rotates when the handle 152 is rotated, so that the belt rotates from the sub-door magnet group 140. The switching of the attractive and repulsive forces between the sub-door magnet group 140 and the main door magnet group 130 is achieved by turning the handle 152. Specifically, when the user rotates the handle 152 to a first angle, an attractive force is generated between the main door magnet group 130 and the sub door magnet group 140, and the sub refrigerator door 120 is tightly attached to the door frame 114 by the attractive force; when the user rotates the handle 152 to a second angle, a repulsive force is generated between the main door magnet group 130 and the sub door magnet group 140, and the sub refrigerator door 120 moves outward under the repulsive force, so that the sub refrigerator door 120 can be opened by slightly pulling the handle 152. When repulsive force is generated between the main door magnet group 130 and the sub door magnet group 140, the repulsive force pushes the main refrigerator door 110 toward the first receiving space through the door frame 114, so that it is possible to prevent the main refrigerator door 110 from being opened by mistake when the sub refrigerator door 120 is opened. By adopting the arrangement mode, the handle 152 drives the auxiliary door magnet group 140 to rotate, so that the device is simple, efficient, low in cost and convenient for users to use.

Alternatively, the sub-door magnet group 140 includes six sub-door magnets 143, and an angle between each adjacent two sub-door magnets 143 is 60 °. The main door magnet group 130 includes six main door magnets 133, and an angle between each adjacent two main door magnets 133 is 60 °.

The number of magnets of the main door magnet group 130 and the sub door magnet group 140 is the same, so that attractive force or repulsive force can be generated between the main door magnet group 130 and the sub door magnet group 140 advantageously. When the sub-refrigerator door 120 is opened, the driving device 150 drives the sub-door magnet set 140 to rotate by an angle of 60 degrees, so that a too long driving stroke cannot be caused due to an excessively large rotation angle, and a large torque cannot be required due to a small rotation angle. When the handle 152 drives the auxiliary door magnet set 140 to rotate, the rotation of 60 degrees accords with human engineering mechanics, and the use is convenient for users.

Alternatively, the main refrigerator door 110 and the sub-refrigerator door 120 are opened by the same handle, and the force required to open the main refrigerator door 110 is smaller than the attractive force between the main door magnet group 130 and the sub-door magnet group 140.

The user directly pulls the handle 152 outward when opening the main refrigerator door 110. Pulling the handle 152 opens the main refrigerator door 110 due to the strong attraction between the main door magnet set 130 and the sub door magnet set 140. When the user opens the sub-refrigerator door 120, the handle 152 is rotated, the attraction force between the main door magnet holder 131 and the sub-door magnet holder 141 becomes a repulsive force, the sub-refrigerator door 120 is bounced open, and the user opens the sub-refrigerator door 120 by pulling the handle 152 outward. Adopt such arrangement form, the action of opening the door of main refrigerator door 110 and vice refrigerator door 120 is more clear, uses same handle 152 can open main refrigerator door 110 or vice refrigerator door 120 through the operation of difference, and the operation zone degree of opening the door is than higher, and convenience of customers uses.

Optionally, the driving device 150 further includes a torsion spring 153 sleeved on the rotating shaft 151, and the torsion spring 153 is used for making the sub-door magnet assembly 140 at the first angle in the initial state.

The torsion spring 153 is disposed on the transmission shaft, and the torsion spring 153 generates a force to rotate the rotation shaft 151. The torsion spring 153 provides a certain force to maintain the sub-door magnet assembly 140 at a predetermined position, that is, to maintain the sub-door magnet assembly 140 at the first angle. The sub-refrigerator door 120 is in a locked state most of the time, and the torsion spring 153 makes the sub-door magnet group 140 at the first angle in the initial state, which is beneficial to sealing the sub-refrigerator door 120 with respect to the second accommodating space. When the sub-refrigerator door 120 is opened, the user rotates the handle 152 to overcome the torsion force of the torsion spring 153, so that the sub-door magnet set 140 rotates from the first angle to the second angle, and the refrigerator door is opened. When the sub-refrigerator door 120 is closed, the main door magnet assembly 130 is restored to the first angle by the elastic force of the torsion spring 153 without the user continuing to rotate the handle 152. When the user pushes back the sub-refrigerator door 120, the sub-refrigerator door 120 is closely attached to the door frame 114 by the attraction force between the main door magnet set 130 and the sub-door magnet set 140 when the sub-refrigerator door 120 approaches the door frame 114, thereby completing the sealing of the second accommodating space. By adopting the arrangement form, the use of the user can be further facilitated.

Optionally, the sub-refrigerator door 120 includes a back plate 111, a side frame 112, a panel 113, a handle seat 115, and a sub-door magnet cover plate 116, wherein the back plate 111 is provided with a mounting hole 222 facing the first accommodating space, and the sub-door magnet set 140 is embedded in the mounting hole 222; a side frame 112 surrounding along the circumferential direction of the back plate 111; a panel 113 fixed to the side frame 112 and forming an interlayer with the back panel 111, the handle 152 extending outward beyond the panel 113; the handle base 115 is fixed in the interlayer, a through hole is formed in the handle base 115, and the rotating shaft 151 penetrates through the through hole; the sub-door magnet cover 116 covers the mounting hole 222.

The sub-refrigerator door 120 has a certain thickness, which can improve the heat insulation effect to the second receiving space. The mounting hole 222 is opened in the back plate 111 of the sub-refrigerator door 120, and the sub-door magnet assembly 140 can be mounted without detaching the back plate 111 or the face plate 113. The handle holder 115 is located in the interlayer, the handle holder 115 functions to fix the rotation shaft 151, and the sub-door magnet group 140 and the handle 152 are indirectly fixed through the rotation shaft 151. Specifically, the handle holder 115 is formed with a through hole through which the rotation shaft 151 passes. The sub-door magnet holder 141 is connected to a first end and the handle 152 is connected to a second end along the length direction of the rotary shaft 151, and the movement of the rotary shaft 151 in the axial direction thereof is restricted by the sub-door magnet holder 141 and the handle 152. The sub-door magnet cover 116 is used for blocking the mounting hole 222, so that the side of the sub-refrigerator door 120 facing the first accommodating space can have a neat appearance.

Alternatively, the section of the rotation shaft 151 is non-circular, and the sub-door magnet holder 141 is axially configured with a first fixing groove corresponding to the section of the rotation shaft 151, into which a first end of the rotation shaft 151 penetrates.

With such an arrangement, the sub-door magnet holder 141 is not easily rotated relative to the rotation shaft 151 when the rotation shaft 151 rotates, which is advantageous for the rotation shaft 151 to drive the sub-door magnet assembly 140 to rotate better.

Optionally, the sub-door magnet base 141 is provided with a first bolt hole along the radial direction, the first bolt hole is communicated with the first fixing groove, and the first fixing bolt passes through the first bolt hole and abuts against the rotation shaft 151.

With this arrangement, the first end of the rotation shaft 151 can be effectively prevented from coming out of the first fixing groove of the sub-door magnet holder 141.

Alternatively, the first end of the rotation shaft 151 is laterally configured with a first recess into which the tail of the first fixing bolt is screwed. This can further strengthen the connection between the sub-door magnet holder 141 and the rotating shaft 151.

Alternatively, the section of the rotation shaft 151 is non-circular, and the handle 152 is configured with a second fixing groove corresponding to the section of the rotation shaft 151, into which the second end of the rotation shaft 151 is inserted.

With such a configuration, when the user rotates the handle 152, the rotating shaft 151 is not easy to rotate relative to the handle 152, which is beneficial for the handle 152 to drive the sub-door magnet assembly 140 to rotate through the rotating shaft 151.

Optionally, the handle 152 has a second bolt hole along the radial direction of the rotation shaft 151, the second bolt hole communicates with the second fixing groove, and the second fixing bolt passes through the second bolt hole and abuts against the rotation shaft 151.

With this arrangement, the second end of the rotation shaft 151 can be effectively prevented from being removed from the second fixing recess of the handle 152.

Alternatively, the second end of the rotary shaft 151 is laterally configured with a second recess into which the tail of the second fixing bolt is screwed. This may further strengthen the connection of the handle 152 to the rotation shaft 151.

Optionally, the main door magnet set 130 further includes a main door magnet seat 131 and a plurality of first partition plates 132, wherein the main door magnet seat 131 is configured with a second annular accommodating groove; the first partition plates 132 are used for dividing the second annular accommodating groove into a plurality of second accommodating units, and the main door magnets 133 are fixed in the first accommodating units in a one-to-one correspondence manner.

The main door magnet holder 131 is configured to be closer to the sub door magnet holder 141. Functionally, the main door magnet base 131 does not rotate during use, and only needs to fix the plurality of main door magnets 133, and from the viewpoint of refrigerator production, the main door magnet base 131 and the sub door magnet base 141 may be provided with the same structure, so that the kinds of accessories may be reduced to reduce the production cost and improve the assembly efficiency. The main door magnet holder 131 is configured with a second annular receiving groove, and the second annular receiving groove is divided into a plurality of sectors by a plurality of first partitions 132, each of which is a second receiving unit. A plurality of main door magnets 133 are fixed in the second receiving unit in one-to-one correspondence. Thus, the sub-door magnet group 140 can be mounted on the door frame 114 as a whole, and the mounting efficiency can be improved.

Optionally, the door frame 114 has a mounting groove facing the sub-refrigerator door 120, and the main door magnet set 130 is embedded in the mounting groove.

The doorframe 114 is configured with a mounting groove in which the main door magnet group 130 is embedded, so that the doorframe 114 has a more tidy appearance. In addition, the embedded installation form can facilitate the user to clean the door frame 114.

Optionally, the refrigerator further includes a damping device 200 disposed on the sub-refrigerator door 120 or the door frame 114, and the damping device 200 is located between the sub-refrigerator door 120 and the door frame 114 when the sub-refrigerator door 120 is in the closed state.

In the process of closing the sub-refrigerator door 120, as the distance between the main door magnet group 130 and the sub-door magnet group 140 decreases, the attractive force therebetween increases. This may cause the sub-refrigerator door 120 to abut against the door frame 114 at a high speed at the moment of closing, causing the refrigerator to vibrate and make a loud sound. The shock-absorbing device 200 is provided between the sub-refrigerator door 120 and the door frame 114, and can reduce vibration and noise for closing the sub-refrigerator door 120.

Optionally, the damping device 200 includes a housing 210, a piston 220, a force-bearing rod 240, and a piston spring 250, wherein the housing 210 is configured with a fluid storage cavity, and a first end of the fluid storage cavity is opened with a transmission hole; the piston 220 is arranged in the liquid storage cavity in a sliding mode, the piston 220 divides the liquid storage cavity into a first cavity 223 and a second cavity 224, and the piston 220 is provided with a conducting hole 221; the first end of the stress rod 240 is connected to the piston 220, the second end of the stress rod extends out through the transmission hole, the stress rod 240 is in sliding sealing connection with the transmission hole, in the process that the refrigerator door is closed, the stress rod 240 drives the piston 220 to move from the first position to the second position under the action of external force, and liquid in the second cavity 224 flows to the first cavity 223 through the conducting hole 221; and the piston spring 250 is arranged between the second end of the liquid storage cavity and the piston 220, after the external force applied to the force bearing rod 240 disappears, the piston spring 250 drives the piston 220 to return to the first position from the second position, and the liquid in the first cavity 223 flows to the second cavity 224 through the through hole 221.

The sub-refrigerator door 120 is fitted to the door frame 114 in a closed state, and the damper device 200 is located between the sub-refrigerator door 120 and the door frame 114. The kinetic energy of the sub-refrigerator door 120 is absorbed by the shock-absorbing device 200 during the closing of the sub-refrigerator door 120, thereby preventing the vibration and noise from being generated when the sub-refrigerator door 120 contacts the door frame 114.

The housing 210 of the shock absorbing device 200 is a sealed housing 210, and a cylindrical liquid storage chamber is formed inside the housing. The piston 220 is slidably disposed in the housing 210 to divide a space inside the housing 210 into a first chamber 223 and a second chamber 224. The piston 220 is opened with a via hole 221 to communicate the first cavity 223 with the second cavity 224. The first end of the housing 210 is opened with a transmission hole, and the force-bearing rod 240 is connected with the transmission hole in a sliding and sealing manner. The sliding sealing connection means that the stress rod 240 can slide in the transmission hole and is attached to the inner ring of the transmission hole in the sliding process, and the working medium filled in the second cavity 224 cannot leak through a gap between the stress rod 240 and the transmission hole. As an alternative embodiment, the damping device 200 further includes a sealing ring, the sealing ring is made of an elastic material, an end surface of the sealing ring abuts against the first end of the force-bearing rod 240 and faces inwards, and the inner ring is coaxial with the transmission shaft. The force-bearing rod 240 passes through the sealing ring and is in interference fit with the sealing ring.

The force-receiving rod 240 serves to transmit the force received by the shock-absorbing device 200 to the piston 220. When the shock absorbing device 200 is installed to the door frame 114, the sub-refrigerator door 120 first makes contact with the force-receiving rod 240 before making contact with the door frame 114 during the closing of the sub-refrigerator door 120. The force-receiving rod 240 receives a force to move the piston 220 from the first position to the second position in a direction from the first end of the reservoir to the second end of the reservoir. A first chamber 223 is located between the piston 220 and a first end of the reservoir and a second chamber 224 is located between the piston 220 and a second end of the reservoir. During the movement of the piston 220, the first chamber 223 increases in volume and decreases in pressure, and the second chamber 224 decreases in volume and increases in pressure. The liquid storage cavity is filled with liquid, and the liquid in the second cavity 224 flows to the first cavity 223 through the conducting hole 221 under the action of pressure difference. In the process of the liquid flowing through the via hole 221, the kinetic energy of the sub-refrigerator door 120 is converted into the internal energy of the liquid flowing to be dissipated, so that the sub-refrigerator door 120 can be slowly closed, and the vibration and noise caused when the sub-refrigerator door 120 contacts the door frame 114 can be reduced. During the movement of the piston 220, the piston spring 250 deforms and absorbs a portion of the energy.

In the process of opening the sub-refrigerator door 120, the external force received by the force receiving rod 240 disappears, and the piston spring 250 drives the piston 220 to move from the second position to the first position in a direction from the second end of the reservoir to the first end of the reservoir. In this process, the first chamber 223 decreases in volume and increases in pressure, and the second chamber 224 increases in volume and decreases in pressure. The liquid in the first chamber 223 flows toward the second chamber 224 through the via hole 221 by the pressure difference. When the piston 220 returns to the first position, the force-receiving rod 240 is extended outward, ready for shock absorption the next time the sub-refrigerator door 120 is closed.

By using the refrigerator provided by the embodiment of the disclosure, in the process of closing the secondary refrigerator door 120, the moving speed of the piston 220 is converted into the flowing speed of the liquid in the conducting hole 221 in multiples, and then the flowing speed is converted into the internal energy of the liquid in the liquid storage cavity, so that the vibration and noise when the secondary refrigerator door 120 is closed can be effectively reduced; the amount of force applied to the force-bearing rod 240 is represented by the flow rate of the liquid in the through hole 221, and the cross-sectional area of the through hole 221 is much smaller than that of the piston 220, so that the moving speed of the piston 220 and the force-bearing rod 240 does not change much when the sub-refrigerator door 120 is closed at different speeds in the user's view. This form of the shock absorbing device 200 can be adaptive and provide suitable damping so that the sub-refrigerator door 120 can be slowly closed and sealed against the door frame 114;

optionally, the piston 220 further has a mounting hole 222, the shock absorbing device 200 further includes a check valve 230 disposed in the mounting hole 222, and a communication direction of the check valve 230 is from the first cavity 223 to the second cavity 224.

The piston 220 moves from the first end of the reservoir to the second end of the reservoir by the driving force of the force-receiving rod 240 during the closing of the sub-refrigerator door 120. The check valve 230 is in a blocking state, and the liquid in the second chamber 224 flows to the first chamber 223 only through the conduction hole 221. The throttling through the conducting hole 221 increases the flow velocity of the liquid flowing through the conducting hole 221, thereby converting mechanical energy into kinetic energy of the liquid, and finally becoming internal energy of the liquid through the disordered flow of liquid molecules.

In the process of opening the sub-refrigerator door 120, the piston 220 moves from the second end of the reservoir to one end of the reservoir by the driving of the piston spring 250. The check valve 230 is in a conduction state, and the liquid in the first chamber 223 flows toward the second chamber 224 through the check valve 230 and the conduction hole 221. Compared with the mode of only flowing through the through hole 221, the flow cross-sectional area of the liquid flow is increased, the liquid flow resistance is reduced, the moving resistance of the piston 220 is reduced, and the piston 220 can quickly return to the first position from the second position. By adopting the arrangement form, the damping device 200 can be reset quickly in the process that a user opens the secondary refrigerator door 120 for a short time, and is prepared for damping and energy absorption when the secondary refrigerator door 120 is closed, so that the use by the user is facilitated.

Optionally, the check valve 230 includes a hinge shaft 231, a flap 232, and a flap spring, wherein the hinge shaft 231 is disposed at the mounting hole 222; the turning plate 232 is rotatably arranged on the hinge shaft 231 and located on one side of the piston 220, when liquid flows from the first cavity 223 to the second cavity 224, the turning plate 232 is in contact with the piston 220 under the action of liquid pressure to seal the mounting hole 222, and when the liquid flows from the second cavity 224 to the first cavity 223, the turning plate 232 is turned over under the action of the liquid pressure to enable the mounting hole 222 to be in a conducting state; and the flap spring is used for enabling the flap 232 to seal the mounting hole 222 in an initial state.

The flap 232 rotates around the hinge shaft 231, the flap 232 is located on one side of the piston 220 close to the first end of the liquid storage cavity, and when liquid flows from the first cavity 223 to the second cavity 224, the flap 232 is attached to the piston 220 more tightly under the action of pressure difference between the first cavity 223 and the second cavity 224, so that a cut-off function is realized. When the liquid flows from the second cavity 224 to the first cavity 223, the flap 232 is turned over by the pressure difference between the first cavity 223 and the second cavity 224, so that the mounting hole 222 is in a conduction state. With such an arrangement, the check valve 230 has a simple structure and low cost; the mounting hole 222 is used as a through hole 221 of the check valve 230, and a large through cross-sectional area is provided with a small volume.

Optionally, the reservoir is disposed horizontally, the piston 220 slides horizontally, the mounting hole 222 is located in a vertical plane, and in an initial state, the flap 232 hangs and abuts against the piston 220 under the action of its own gravity to seal the mounting hole 222.

When the liquid flows from the first cavity 223 to the second cavity 224, the flap 232 may be turned under the pressure of the liquid. When liquid flows from the second cavity 224 to the first cavity 223, the piston 220 limits the turnover of the turnover plate 232, and the turnover plate 232 is pressed on the end face of the piston 220 by liquid pressure, so that the mounting hole 222 is blocked, and the reverse stopping function is realized. With this arrangement, the check valve 230 operates reliably and at a lower cost.

Optionally, the check valve 230 further includes a flap spring for causing the flap 232 to block the mounting hole 222 in the initial state.

The flap spring is provided to keep the flap 232 at an initial position, thereby better achieving a reverse blocking function. The use of the flap spring allows the installation direction of the check valve 230 to be unrestricted, so that it can be applied to refrigerators having various door opening forms.

Optionally, a third cavity 241 is configured inside the force bearing rod 240, the first end of the force bearing rod 240 is opened to enable the third cavity 241 to communicate with the via hole 221 and the mounting hole 222, a communication hole 242 communicating with the first cavity 223 is opened at a side edge of the third cavity 241, and the first cavity 223 and the second cavity 224 are communicated through the third cavity 241.

The force-bearing rod 240 is a hollow structure, and a third cavity 241 is configured inside the force-bearing rod. The second end of the force-bearing rod 240 is a top end, and can extend out of the transmission hole. The force-bearing rod 240 is cylindrical, the top end is closed, and the first end is open. The first end is connected to the piston 220, and the through hole 221 and the mounting hole 222 formed in the piston 220 correspond to the opening of the first end of the force-bearing rod 240. The liquid in the third chamber 241 may pass through the piston 220 into the second chamber 224 through the through hole 221 and the communication hole 242. The liquid in the second chamber 224 passes through the through hole 221 or the mounting hole 222 and then passes through the piston 220 into the third chamber 241.

In an alternative embodiment, the force-bearing rod 240 is integrally formed with the piston 220, the opening at the bottom of the force-bearing rod 240 is a hole opened in the piston 220, and the hole opened in the piston 220 is provided with a blocking piece that blocks a portion of the opening at the bottom of the force-bearing rod 240. The via hole 221 is opened in the stopper. The part of the bottom of the force bearing rod 240, which is not covered by the blocking piece, is the mounting hole 222. The flap 232 abuts the stop piece when closing the mounting hole 222.

The side of the third cavity 241 is opened with a communication hole 242 to communicate the third cavity 241 with the first cavity 223. When the piston 220 slides between the first position and the second position, the communication hole 242 does not go beyond the transmission hole.

When the piston 220 moves from the first position to the second position, the liquid in the second chamber 224 enters the third chamber 241 through the through hole 221, and the liquid in the third chamber 241 enters the first chamber 223 through the communication hole 242; when the piston 220 moves from the second position to the first position, the liquid in the first chamber 223 enters the third chamber 241 through the communication hole 242, and the liquid in the third chamber 241 enters the second chamber 224 through the check valve 230 of the communication hole 221.

The stress rod 240 has a hollow structure inside, so that the amount of liquid stored in the shock absorbing device 200 can be increased, and the shock absorbing and energy absorbing capacity of the shock absorbing device 200 can be improved. Since the interior of the force-bearing rod 240 is a hollow structure, the force-bearing rod 240 can be connected to the center of the piston 220, the via hole 221 and the mounting hole 222 can also be opened at the center of the piston 220, and the piston 220 is stressed in a balanced manner when moving, and is not easy to rub against the interior of the liquid storage cavity, so that the service life of the damping device 200 can be prolonged. During the process of closing the sub-refrigerator door 120, the liquid in the second chamber 224 flows through the through hole 221 and the communication hole 242, so that the turbulence degree of the liquid flow can be increased, and the impact applied to the damping device 200 can be better converted into the internal energy of the liquid.

Optionally, the force receiving rod 240 is opened with a plurality of communicating holes 242.

The plurality of communication holes 242 may increase the exchange speed of the liquid between the first chamber 223 and the third chamber 241, facilitating the flow of the liquid between the first chamber 223 and the second chamber 224. In particular, when the piston 220 moves from the second position to the first position, the force receiving rod 240 is opened with a plurality of communicating holes 242 to increase the rebound velocity of the force receiving rod 240.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A refrigerator, characterized by comprising:

the side edge of the box body is provided with a first opening communicated with the first accommodating space;

the main refrigerator door is arranged on the first opening in an openable and closable manner, a second accommodating space and a second opening communicated with the second accommodating space are formed in the main refrigerator door, and the second opening and the first opening are positioned on the same side face of the refrigerator body;

the door frame is arranged at the second opening;

the auxiliary refrigerator door can be arranged on the second opening in an opening and closing manner, and is attached to the door frame in a closed state;

the main door magnet group is arranged on the door frame and comprises a plurality of main door magnets, and the main door magnets are annularly arranged and are alternately arranged towards the N pole and the S pole of one surface of the auxiliary door refrigerator;

the auxiliary door magnet group is rotatably arranged on the auxiliary refrigerator door and comprises a plurality of auxiliary door magnets, the auxiliary door magnets are annularly arranged and are alternately arranged towards the N level and the S level of one surface of the main refrigerator door, the plurality of main door magnets and the plurality of auxiliary door magnets attract each other in a one-to-one correspondence manner when the auxiliary door magnet group rotates to a first angle, and the plurality of main door magnets and the plurality of auxiliary door magnets repel each other in a one-to-one correspondence manner when the auxiliary door magnet group rotates to a second angle;

and the driving device is used for driving the auxiliary door magnet group to rotate between a first angle and a second angle.

2. The refrigerator of claim 1, wherein the sub door magnet set further comprises:

the auxiliary door magnet seat is provided with a first annular accommodating groove;

and the first partition plates are used for dividing the first annular accommodating groove into a plurality of first accommodating units, and the auxiliary door magnets are fixed in the first accommodating units in a one-to-one correspondence manner.

3. The refrigerator according to claim 2, wherein the driving means comprises:

the rotating shaft penetrates through the auxiliary refrigerator door in the thickness direction, and the auxiliary door magnet seat is sleeved at the first end of the rotating shaft;

and the handle is connected to the second end of the rotating shaft and drives the rotating shaft to rotate by rotating the handle, so that the auxiliary door magnet group is driven to rotate.

4. The refrigerator according to claim 3, wherein the driving device further comprises:

and the torsion spring is sleeved on the rotating shaft and is used for enabling the auxiliary door magnet group to be at a first angle in an initial state.

5. The refrigerator of claim 4, wherein the sub-refrigerator door comprises:

a back plate;

the side frame is enclosed along the circumferential direction of the back plate;

the panel is fixed on the side frame and forms an interlayer with the back plate, and the handle extends out of the panel;

the handle seat is fixed in the interlayer, a through hole is formed in the handle seat, and the rotating shaft penetrates through the through hole.

6. The refrigerator of claim 5, wherein the main door magnet group further comprises:

the main door magnet seat is provided with a second annular accommodating groove;

and the second partition plates are used for dividing the second annular accommodating groove into a plurality of second accommodating units, and the main door magnets are fixed in the first accommodating units in a one-to-one correspondence manner.

7. The refrigerator according to claim 6,

the door frame is provided with an installation groove facing the auxiliary refrigerator door, and the main door magnet group is embedded in the installation groove.

8. The refrigerator according to any one of claims 1 to 7, further comprising:

and the damping device is arranged on the secondary refrigerator door or the door frame, and the damping device is positioned between the secondary refrigerator door and the door frame when the secondary refrigerator door is in a closed state.

9. The refrigerator according to claim 8, wherein the shock absorbing device comprises:

the shell is provided with a liquid storage cavity, and a first end of the liquid storage cavity is provided with a transmission hole;

the piston is arranged in the liquid storage cavity in a sliding mode, the piston divides the liquid storage cavity into a first cavity and a second cavity, the first cavity is close to the first end of the liquid storage cavity, and the piston is provided with a conducting hole and a mounting hole;

the one-way valve is arranged in the mounting hole, and the conduction direction of the one-way valve is from the first cavity to the second cavity;

the first end of the stress rod is connected to the piston, the second end of the stress rod penetrates through the transmission hole to extend outwards, the stress rod is connected with the transmission hole in a sliding and sealing mode, in the process that the secondary refrigerator door is closed, the stress rod drives the piston to move from the first position to the second position under the action of external force, and liquid in the second cavity flows to the first cavity through the through hole;

the piston spring is arranged between the second end of the liquid storage cavity and the piston, after the external force applied to the stress rod disappears, the piston spring drives the piston to return to the first position from the second position, and the liquid in the first cavity passes through the one-way valve and the conducting hole to flow to the second cavity.

10. The refrigerator according to claim 9, wherein the check valve comprises:

the hinge shaft is arranged in the mounting hole;

the turning plate is rotationally arranged on the hinge shaft and located on one side of the piston, when liquid flows from the first cavity to the second cavity, the turning plate is pressed on the piston under the action of liquid pressure so as to plug the mounting hole, and when the liquid flows from the second cavity to the first cavity, the turning plate is turned over under the action of the liquid pressure so as to enable the mounting hole to be in a conducting state.

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