refrigerator

Abstract

This invention provides a refrigerator comprising a cabinet, a main door disposed on the outer side of the cabinet, a secondary door disposed on the outer side of the main door, a first magnet disposed in the area of ​​the cabinet opposite to the main door, a second magnet disposed in the area of ​​the secondary door opposite to the main door, and an electromagnetic component disposed in the main door, configured to controllably or operably generate a magnetic attraction force for attracting the first magnet or the second magnet. This invention utilizes magnetic attraction to ensure that the door, which does not need to be opened during the user's opening process, remains closed, preventing items placed in the first or second storage space from being pulled out by inertia, thus improving the user experience. It also avoids heat loss from the refrigerator, has a simple structure, and is easy to promote and use.

Description

Technical Field

[0001] This invention relates to refrigeration and freezing technology, and in particular to a refrigerator. Background Technology

[0002] With the continuous development of home appliance technology, stacked-door refrigerators have appeared on the market. They have two doors, a main door and a secondary door, on the outside of the refrigerator. The interior of the main door defines the storage space so that users can store frequently used items, thereby reducing the frequency of users opening the storage space of the refrigerator and thus reducing heat loss.

[0003] In existing technologies, magnetic sealing strips are typically used to seal the gap between the inner and outer door panels. When the doors are closed, the main door is attached to the cabinet via the sealing strip, and the secondary door is attached to the main door. However, during use, the secondary door is often pulled out when the user opens the main door, or vice versa, affecting the user experience. Summary of the Invention

[0004] One object of the present invention is to overcome at least one deficiency in the prior art and to provide a refrigerator.

[0005] A further object of the present invention is to prevent items from falling out of a multi-door refrigerator when the user is opening the main door or the secondary door.

[0006] Another further objective of this invention is to improve the user experience.

[0007] Specifically, the present invention provides a refrigerator comprising:

[0008] Box;

[0009] The main door is located on the outside of the enclosure, and the secondary door is located on the outside of the main door;

[0010] A first magnet is disposed in the area opposite the main door to the housing;

[0011] A second magnet is disposed in the area opposite the main door to the secondary door;

[0012] An electromagnetic component, disposed in the main door, is configured to controllably or operably generate a magnetic attraction force for attracting the first magnet or the second magnet.

[0013] Furthermore, the electromagnetic component includes:

[0014] The first electromagnet is located on the side of the main door facing the box body;

[0015] A second electromagnet is installed on the side of the main door facing the secondary door; and

[0016] The first electromagnet and the second electromagnet are configured such that the power supply to the second electromagnet is controlled to generate a magnetic attraction force that attracts the second magnet, thereby keeping the secondary door closed; or the power supply to the first electromagnet is controlled to generate a magnetic attraction force that attracts the first magnet, thereby keeping the main door closed.

[0017] Furthermore, the electromagnetic component also includes:

[0018] A first control switch is electrically connected to the first electromagnet;

[0019] The second control switch is electrically connected to the second electromagnet; and

[0020] The first control switch and the second control switch are configured to receive on / off commands from the user to control the on / off state of the circuit containing the first electromagnet and the circuit containing the second electromagnet, respectively.

[0021] Furthermore, the first control switch is located on the secondary door; and

[0022] The second control switch is located on the main door.

[0023] Furthermore, the electromagnetic component includes:

[0024] A third electromagnet is arranged along the front-rear direction of the main gate, configured to change the magnetism at both ends of the third electromagnet by changing the direction of its current; and

[0025] The first magnet and the second magnet have the same magnetism on the side facing the third electromagnet, so that a magnetic attraction is always generated between the third electromagnet and the first magnet or between the third electromagnet and the second magnet during the process of the current direction of the third electromagnet changing.

[0026] Furthermore, the electromagnetic component includes:

[0027] A first touch unit is located on the main door and configured to receive a user's command to open the main door;

[0028] A second touch unit is located on the secondary door and configured to receive a user's command to open the secondary door;

[0029] The control unit is electrically connected to the first touch unit and the second touch unit respectively, and is configured as follows:

[0030] The system receives a command signal from the first touch unit and controls the current in the third electromagnet to flow in a first direction. The third electromagnet generates a magnetic attraction force that attracts the second magnet, so that when the user opens the main door, the secondary door is closed under the action of the magnetic attraction force; or

[0031] The system receives a command signal from the second touch unit and controls the current of the third electromagnet to flow in the opposite direction to the first direction. The third electromagnet generates a magnetic attraction force that attracts the first magnet, so that when the user opens the secondary door, the main door is closed under the action of the magnetic attraction force.

[0032] Furthermore, the main door has a first handle, and the secondary door has a second handle;

[0033] The first touch unit is disposed on the first handle, and the second touch unit is disposed on the second handle.

[0034] Furthermore, the distance between the first handle and the second handle is not less than 3cm.

[0035] Furthermore, magnetic door seals are provided on the areas where the main door is opposite to the housing and on the areas where the main door is opposite to the secondary door. The magnetic door seals are configured to attract the housing and the secondary door when the third electromagnet is not energized, thereby sealing the gaps between the main door and the secondary door, and between the main door and the housing.

[0036] Furthermore, the interior of the enclosure defines a first storage space, and the first storage space has a forward-facing first opening; the main door is pivotally connected to one side of the enclosure to open and close the first opening; and

[0037] The main door also defines a second storage space, and the second storage space has a forward-facing second opening. The secondary door is pivotally connected to one side of the main door to open and close the second opening.

[0038] In the refrigerator of the present invention, a first magnet is provided in the area of ​​the cabinet opposite the main door, a second magnet is provided in the area of ​​the secondary door opposite the main door, and an electromagnetic component is provided on the main door. Therefore, when the user wants to open the main door or the secondary door, the electromagnetic component can be activated and generate magnetic attraction to keep the door that does not need to be opened in a closed state, so as to prevent items placed in the first storage space or the second storage space from being carried out by inertia, thereby improving the user experience and avoiding heat loss from the refrigerator.

[0039] Furthermore, in the refrigerator of the present invention, a third electromagnet is provided along the front-to-back direction of the main door. Since the first magnet and the second magnet have the same magnetism on the side facing the third electromagnet, when the third electromagnet is energized, the magnetic pole generated on its iron core will inevitably have one magnetic attraction force that attracts the first magnet or the second magnet, while the other is subjected to magnetic repulsion. The magnetic attraction force can be used to keep the door that does not need to be opened in a closed state, and the magnetic repulsion force can be used to allow the user to easily open the door that they want to open, thereby improving the user experience.

[0040] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0041] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0042] Figure 1 This is an exploded view of a refrigerator according to an embodiment of the present invention;

[0043] Figure 2 This is a cross-sectional view of a refrigerator according to an embodiment of the present invention;

[0044] Figure 3 yes Figure 2 Enlarged view of point A;

[0045] Figure 4 yes Figure 2 Enlarged view of point B.

[0046] Figure 5 This is an exploded view of a refrigerator according to another embodiment of the present invention;

[0047] Figure 6 This is a cross-sectional view of a refrigerator according to another embodiment of the present invention;

[0048] Figure 7 Figure 6 Enlarged view of point C;

[0049] Figure 8 This is a block diagram illustrating the working principle of a refrigerator according to another embodiment of the present invention;

[0050] Figure 9 yes Figure 6 Enlarged view of point D. Detailed Implementation

[0051] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and "depth," etc., indicate the orientation or positional relationship based on the orientation of the storage device in its normal use state, and can be determined with reference to the orientation or positional relationship shown in the accompanying drawings. For example, "front" in indicating orientation refers to the side of the refrigerator facing the user. This is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0052] Please see Figure 1 The present invention proposes a refrigerator 10, which may include a cabinet 100, a main door 200 and a secondary door 300.

[0053] The interior of the housing 100 defines a first storage space 110 with a forward-facing first opening. A main door 200 is pivotally connected to the outside of the housing 100 to open and close the first opening. The interior of the main door 200 defines a second storage space 210 with a forward-facing second opening. A secondary door 300 is pivotally connected to the outside of the main door 200 to open and close the second opening.

[0054] In this embodiment, both the first storage space 110 inside the cabinet 100 and the second storage space 210 inside the main door 200 can be used by the user to store food. The user can choose to store items in either the first storage space 110 or the second storage space 210 based on the frequency of use or size of the items. For example, the user can store frequently used items that occupy little space in the second storage space 210 and infrequently used items that occupy much more space in the first storage space 110. This avoids frequent door opening, reducing heat loss. Furthermore, the first storage space 110 or the second storage space 210 can divide the storage areas of the refrigerator 10, facilitating item organization. In some preferred embodiments, the first storage space 110 can also be the refrigerator compartment of the refrigerator 10.

[0055] In this embodiment, the refrigerator 10 may further include a first magnet 120, a second magnet 310, and an electromagnetic component.

[0056] The first magnet 120 is disposed in the area of ​​the housing 100 opposite to the main door 200, the second magnet 310 is disposed in the area of ​​the secondary door 300 opposite to the main door 200, and the electromagnetic component is disposed on the main door 200. The electromagnetic component can also be configured to controllably or operablely generate a magnetic attraction force for attracting the first magnet 120 or the second magnet 310.

[0057] As described in the background section, in the prior art, magnetic sealing strips are generally used to seal the gap between the inner and outer door panels. When the doors are closed, the main door is attached to the cabinet via the sealing strip, and the secondary door is attached to the main door. However, during use, the secondary door is often pulled out when the user opens the main door, or vice versa, affecting the user experience.

[0058] To overcome the shortcomings of the prior art, in the refrigerator 10 of this embodiment, a first magnet 120 is provided in the area of ​​the cabinet 100 opposite to the main door 200, and a second magnet 310 is provided in the area of ​​the secondary door 300 opposite to the main door 200. An electromagnetic component is provided on the main door 200. Before the user intends to open the main door 200 or the secondary door 300, the electromagnetic component can be activated and generate a magnetic attraction force to keep the door that does not need to be opened closed. For example, before the user intends to open the main door 200, the electromagnetic component can generate a magnetic attraction force to attract the secondary door 300, so that the main door 200 and the secondary door 300 form a whole. During the process of the user opening the main door 200, the secondary door 300 will not be opened, thus preventing items placed in the second storage space 210 from being pulled out by inertia and improving the user experience. For example, before the user wants to open the secondary door 300, the electromagnetic component can generate a magnetic attraction force to attract the main door 200, so that the main door 200 and the cabinet 100 form a whole. When the user opens the secondary door 300, the main door 200 will not be opened. This not only prevents the items in the first storage space 110 from being carried out by inertia, but also avoids heat loss from the refrigerator 10.

[0059] Please see Figures 1 to 3 In some embodiments of this application, the electromagnetic component may further include a first electromagnet 220 and a second electromagnet 230. The first electromagnet 220 is disposed on the side of the main door 200 facing the housing 100, and the second electromagnet 230 is disposed on the side of the main door 200 facing the secondary door 300.

[0060] Specifically, a mounting groove (not shown in the figure) is formed on the side of the main door 200 facing the housing 100, which is opposite to the first magnet 120. Similarly, a mounting groove (not shown in the figure) is formed on the side of the main door 200 facing the secondary door 300, which is opposite to the second magnet 310. The first electromagnet 220 and the second electromagnet 230 are respectively disposed in the mounting groove.

[0061] Before the user attempts to open the main door 200, the wire of the second electromagnet 230 is energized, and the second electromagnet 230 attracts the second magnet 310, keeping the secondary door 300 closed. Before the user attempts to open the secondary door 300, the wire of the first electromagnet 220 is energized, and the first electromagnet 220 attracts the first magnet 120, keeping the main door 200 closed.

[0062] In this embodiment, the current direction of the first electromagnet 220 and the second electromagnet 230 when energized can also be configured to remain fixed, so that the direction of the magnetic poles generated by the first electromagnet 220 and the second electromagnet 230 after energization remains unchanged. For example, when the first electromagnet 220 generates a magnetic pole with its N pole facing the first magnet 120 after energization, the magnetic poles of the first magnet 120 and the first electromagnet 220 opposite to each other can be configured as S poles to achieve mutual attraction after energization.

[0063] Of course, the first electromagnet 220 can also be configured so that the S pole of the magnetic pole it generates after being energized faces the first magnet 120. In this case, the first magnet 120 can be adjusted accordingly, and this application does not impose any special limitations on this. The second electromagnet 230 is configured similarly to the second magnet 310.

[0064] In some alternative embodiments, the positions of the first magnet 120 and the first electromagnet 220 can be interchanged, and the positions of the second electromagnet 230 and the second magnet 310 can also be interchanged. That is, the first magnet 120 and the second magnet 310 can be placed on the main door 200, and the first electromagnet 220 and the second electromagnet 230 can be placed on the housing 100 and the secondary door 300, respectively. The same technical effect as in the above embodiments can be achieved, and will not be elaborated here.

[0065] Please see Figure 4 The electromagnetic component may also include a first control switch 240 and a second control switch 250. The first control switch 240 is electrically connected to the first electromagnet 220, and the second control switch 250 is electrically connected to the second electromagnet 230. The first control switch 240 and the second control switch 250 are configured to receive on / off commands from the user to control the on / off state of the circuit where the first electromagnet 220 is located and the circuit where the second electromagnet 230 is located.

[0066] The first control switch 240 and the second control switch 250 can be push-button switches. Before the user wants to open the main door 200, the second control switch 250 can be operated to close the circuit containing the second electromagnet 230, thereby energizing the wires of the second electromagnet 230; before the user wants to open the secondary door 300, the first control switch 240 can be operated to close the circuit containing the first electromagnet 220, thereby energizing the wires of the first electromagnet 220.

[0067] In this embodiment, the first control switch 240 and the second control switch 250 can also be configured to automatically open the circuit where the first electromagnet 220 is located and the circuit where the second electromagnet 230 is located after the user operates them for a preset time.

[0068] For example, if the user presses the second control switch 250 before opening the main door 200, the wire of the second electromagnet 230 is energized, and the main door 200 and the secondary door 300 form a single unit. After a preset time, it is assumed that the user has completed the retrieval and placement action. At this point, it is no longer necessary to magnetically attach the main door 200 and the secondary door 300 together. The second control switch 250 can then return to its pre-operation state, thus opening the circuit containing the second electromagnet 230 and preparing for the next operation, while also saving electricity. Preferably, the preset time can be configured to any value within the range of 5 to 20 seconds, such as 5 seconds, 15 seconds, or 20 seconds.

[0069] Please see Figure 4 In this embodiment, the first control switch 240 can also be set on the secondary door 300, and the second control switch 250 can also be set on the main door 200.

[0070] Since the first control switch 240 controls the first electromagnet 220, when the user opens the secondary door 300, the first electromagnet 220 needs to be energized and attracted to the first magnet 120 located on the housing 100. Therefore, placing the first control switch 240 on the secondary door 300 allows the user to operate the first control switch 240 simultaneously when opening the secondary door 300, eliminating the need for separate operation and improving the user experience. Similarly, placing the second control switch 250 on the main door 200 is also based on the above-mentioned inventive concept.

[0071] Please see Figures 5 to 7 In some other embodiments, the electromagnetic component may include a third electromagnet 260, which is arranged along the front-rear direction of the main gate 200 and configured to change the magnetism at both ends of the third electromagnet 260 by changing the direction of its current; and the first magnet 120 and the second magnet 310 have the same magnetism on the side facing the third electromagnet 260, so that a magnetic attraction force is always generated between the third electromagnet 260 and the first magnet 120 or between the third electromagnet 260 and the second magnet 310 during the process of changing the current direction of the third electromagnet 260.

[0072] Specifically, the main door 200 has a groove (not shown in the figure) along the front-to-back direction, and the front and rear ends of the groove are respectively opposite to the first magnet 120 and the second magnet 310. The third electromagnet 260 is disposed in the groove. Since the first magnet 120 and the second magnet 310 have the same magnetism on the side facing the third electromagnet 260, when the third electromagnet 260 is energized, the magnetic poles generated on its iron core will inevitably exhibit a magnetic attraction force that attracts the first magnet 120 or the second magnet 310, while the other will be subjected to a magnetic repulsion force.

[0073] For example, the side of the first magnet 120 facing the third electromagnet 260 has the N pole, and the side of the second magnet 310 facing the third electromagnet 260 also has the N pole. When the third electromagnet 260 is energized, if the S pole of the magnetic pole generated on its core is facing the first magnet 120, the first magnet 120 and the third electromagnet 260 will attract each other; conversely, the second magnet 310 and the third electromagnet 260 will repel each other. At this time, if the user wants to open the secondary door 300, this not only makes the main door 200 and the box 100 form a whole, but also allows the user to easily open the secondary door 300 by utilizing the repulsive force between the second magnet 310 and the third electromagnet 260.

[0074] Therefore, after the third electromagnet 260 is energized, no matter how the direction of the current applied to the third electromagnet 260 changes, it will inevitably have a magnetic attraction force and a magnetic repulsion force with the first magnet 120 or the second magnet 310. The user only needs to control the direction of the current applied to the third electromagnet 260 to realize the conversion of the objects of magnetic attraction and magnetic repulsion.

[0075] Further, please see Figure 8 The electromagnetic component may also include a first touch unit 410, a second touch unit 420, and a control unit 430.

[0076] The first touch unit 410 is disposed on the main door 200 and configured to receive a user's command to open the main door 200; the second touch unit 420 is disposed on the secondary door 300 and configured to receive a user's command to open the secondary door 300; the control unit 430 is electrically connected to the first touch unit 410 and the second touch unit 420 respectively, and is configured to receive a command signal sent by the first touch unit 410 and control the current of the third electromagnet 260 to flow in a first direction, so that the third electromagnet 260 generates a magnetic attraction force that attracts the second magnet 310, so that when the user opens the main door 200, the secondary door 300 is closed under the action of the magnetic attraction force; or, receiving a command signal sent by the second touch unit 420, the control unit 430 controls the current of the third electromagnet 260 to flow in a direction opposite to the first direction, so that the third electromagnet 260 generates a magnetic attraction force that attracts the first magnet 120, so that when the user opens the secondary door 300, the main door 200 is closed under the action of the magnetic attraction force.

[0077] Specifically, the first touch unit 410 and the second touch unit 420 can be configured as sensors such as infrared sensors to sense the user's hand position. When the user's hand approaches the sensing area of ​​the first touch unit 410, the first touch unit 410 sends a command signal to the control unit 430 to instruct the user to open the main door 200. The control unit 430 can also be electrically connected to a power supply 440 for the third electromagnet 260 to control the power supply 440 to apply current to the third electromagnet 260 in a first direction. The first direction of current application can be understood as the direction in which the third electromagnet 260 generates a magnetic attraction force between the second magnet 310 and a magnetic repulsion force with the first magnet 120. This magnetic attraction force is used to attract the secondary door 300 to the main door 200, and this magnetic repulsion force is used to assist in opening the main door 200. Similarly, when the control unit 430 controls the power supply 440 to supply current to the third electromagnet 260 in the second direction, the main door 200 is attracted to the housing 100, and the magnetic repulsion is used to assist in opening the secondary door 300.

[0078] Furthermore, the control unit 430 can also be configured to cut off the third electromagnet 260 after a preset time of applying current to it. For example, when the first touch unit 410 senses the user's hand position, the control unit 430 applies current to the third electromagnet 260. After the preset time, assuming the user has completed the pick-up / place-up action, the control unit 430 controls the power supply 440 to disconnect, preparing for the next startup. Preferably, the preset time can also be configured to any value within the range of 2 to 5 seconds, such as 2 seconds, 3 seconds, or 5 seconds.

[0079] Please see Figure 9 In this embodiment, the main door 200 has a first handle 270 and the secondary door 300 has a second handle 320; the first touch unit 410 is disposed on the first handle 270 and the second touch unit 420 is disposed on the second handle 320.

[0080] Since the first touch unit 410 and the second touch unit 420 can receive signals from the user's hand approaching, the first touch unit 410 and the second touch unit 420 are respectively set in the first handle 270 and the second handle 320. When the user opens the door, they will inevitably operate the first handle 270 and the second handle 320. At this time, the first touch unit 410 and the second touch unit 420 can also receive the door opening signal, thus improving the reliability of door opening.

[0081] Since the first touch unit 410 and the second touch unit 420 are located on the first handle 270 and the second handle 320, in order to avoid misoperation, the distance between the first handle 270 and the second handle 320 is configured to be no less than 3cm (such as 3cm, 5cm or 10cm, etc.), which further improves the reliability when opening the door.

[0082] Please see Figure 7 Magnetic door seals 290 are provided on the areas where the main door 200 is opposite to the housing 100 and the areas where the main door 200 is opposite to the secondary door 300. The magnetic door seals 290 are configured to attract the housing 100 and the secondary door 300 when the third electromagnet 260 is not energized, so as to seal the gaps between the main door 200 and the secondary door 300, and between the main door 200 and the housing 100.

[0083] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A refrigerator comprising: a cabinet; a main door provided outside the cabinet and a sub-door provided outside the main door; a first magnet provided at a region of the cabinet opposite to the main door; a second magnet provided at a region of the sub-door opposite to the main door; an electromagnetic assembly provided at the main door and configured to controllably or operably generate a magnetic attraction force for being attracted to the first magnet or the second magnet; the electromagnetic assembly comprising: a third electromagnet provided in a front-rear direction of the main door and configured to change a magnetic property at both ends of the third electromagnet by changing a direction of a current thereof; and the first magnet and the second magnet having the same magnetic property toward a side of the third electromagnet, such that a magnetic attraction force is always generated between the third electromagnet and the first magnet or between the third electromagnet and the second magnet during a change in the direction of the current of the third electromagnet; a first touch unit provided at the main door and configured to receive an instruction of a user to open the main door; a second touch unit provided at the sub-door and configured to receive an instruction of a user to open the sub-door; a control unit electrically connected to the first touch unit and the second touch unit, respectively, and configured to: receive an instruction signal transmitted from the first touch unit and control a current of the third electromagnet to flow in a first direction, the third electromagnet generating a magnetic attraction force for being attracted to the second magnet, such that when the user opens the main door, the sub-door is in a closed state due to the magnetic attraction force; or receive an instruction signal transmitted from the second touch unit and control the current of the third electromagnet to flow in a direction opposite to the first direction, the third electromagnet generating a magnetic attraction force for being attracted to the first magnet, such that when the user opens the sub-door, the main door is in a closed state due to the magnetic attraction force.

2. The refrigerator according to claim 1, wherein, the electromagnetic assembly comprising: a first electromagnet provided at a side of the main door facing the cabinet; a second electromagnet provided at a side of the main door facing the sub-door; and the first electromagnet and the second electromagnet being configured to controllably turn on a power supply of the second electromagnet to generate a magnetic attraction force for being attracted to the second magnet, such that the sub-door is maintained in a closed state, or controllably turn on a power supply of the first electromagnet to generate a magnetic attraction force for being attracted to the first magnet, such that the main door is maintained in a closed state. 3.The refrigerator according to claim 2, wherein, the electromagnetic assembly further comprising: a first control switch electrically connected to the first electromagnet; a second control switch electrically connected to the second electromagnet; and the first control switch and the second control switch being configured to receive an on-off instruction of a user to correspondingly perform on-off control on a circuit in which the first electromagnet is located and a circuit in which the second electromagnet is located. 4.The refrigerator according to claim 3, wherein: the first control switch is provided at the sub-door; and the second control switch is provided at the main door. 5.The refrigerator according to claim 1, wherein: the main door has a first handle thereon and the sub-door has a second handle thereon. The first touch unit is disposed on the first handle, and the second touch unit is disposed on the second handle. 6.The refrigerator of claim 5, wherein, A distance between the first handle and the second handle is not less than 3 cm. 7.The refrigerator of claim 1, wherein, The main door and the case are opposed to each other, and the main door and the sub door are opposed to each other, and a magnetic door seal is disposed on each of the opposed regions, and the magnetic door seal is configured to be attracted to the case and the sub door by the magnetic door seal in a state in which the third electromagnet is not energized, to seal a gap between the main door and the sub door and between the main door and the case. 8.The refrigerator of claim 1, wherein, An inside of the case defines a first storage space, and the first storage space has a forward first opening, and the main door is pivotally connected to one side of the case to open and close the first opening; and An inside of the main door further defines a second storage space, and the second storage space has a forward second opening, and the sub door is pivotally connected to one side of the main door to open and close the second opening.

Images