KR-20260067835-A - Refrigerator

KR20260067835AKR 20260067835 AKR20260067835 AKR 20260067835AKR-20260067835-A

Abstract

A refrigerator is disclosed. The refrigerator is provided with a door opening device that automatically opens a second door relative to a first door and a door locking device that maintains the locked state of the first door and the second door at the bottom of the second door, and a gap prevention device that prevents the second door from opening away from the first door may be provided between the first door and the second door. Through this, the second door, which is located on the outer side of the door composed of the first door and the second door, can be opened manually and/or automatically as needed, thereby increasing convenience, and since the door locking device that maintains the locked state of the second door is provided at the bottom of the second door, interoperability with the door opening device is improved while preventing the first door and the second door from opening apart.

Inventors

권성원
장진호

Assignees

엘지전자 주식회사

Dates

Publication Date: 20260513
Application Date: 20241106

Claims (11)

Cabinet equipped with a storage room; A first door for opening and closing the above storage room; A second door provided on the outer side of the first door and rotatably provided with respect to the first door; A door locking device that causes the first door and the second door to be locked or unlocked manually or automatically when the second door is closed: and It includes a gap prevention device that suppresses the gap between the first door and the second door, and The above-mentioned opening prevention device is, A refrigerator provided with the above door locking device spaced apart in the height direction of the cabinet.
In paragraph 1, The above door locking device is provided on the lower side of the second door, and The above-mentioned opening prevention device is, A refrigerator provided on the upper side of the second door.
In paragraph 2, One end of the second door is rotatably coupled to the first door, and The above-mentioned opening prevention device is, A refrigerator configured to be closer to the other end than to one end of the second door.
In paragraph 1, The above-mentioned opening prevention device is, A first magnetic body provided on either one of the first door and the second door; and A refrigerator comprising a second magnetic body provided on the door facing the first magnetic body among the first door and the second door, and generating an attractive force between the second magnetic body and the first magnetic body.
In paragraph 4, A refrigerator in which one of the first magnetic body and the second magnetic body is a permanent magnet and the other is a non-magnet.
In paragraph 4, A refrigerator in which the first magnetic body and the second magnetic body are each permanent magnets, and the first magnetic body and the second magnetic body are arranged so that opposite polarities face each other.
In paragraph 4, A refrigerator in which at least one of the first magnetic body and the second magnetic body is exposed toward the opposite magnetic body.
In any one of paragraphs 1 through 7, It further includes a door opening device that rotates the second door relative to the first door, and The above door opening device is, A first magnetic unit provided in the first door; and A refrigerator comprising a second magnetic unit provided on the second door so as to face the first magnetic unit, and which causes the second door to automatically open through interaction with the first magnetic unit.
In paragraph 8, The above door locking device is, A first member linked to the above door opening device; and A refrigerator comprising a second member that rotates in conjunction with the first member and selectively engages or disengages from the first door.
In Paragraph 9, The above door opening device is, Driving unit; and It includes a movable member that is movable relative to the second door by receiving power from the above-mentioned driving unit, The above second magnet unit is, A refrigerator that moves together with the moving member or moves by receiving the moving force of the moving member when the second door is opened.
In Paragraph 9, The above door opening device is, Driving unit; and It includes a movable member that is movable relative to the second door by receiving power from the above-mentioned driving unit, The first magnet unit is fixed to the first door, and the second magnet unit is fixed to the second door, and Between the first magnet unit and the second magnet unit, A refrigerator equipped with a shielding member to selectively shield the space between the first magnet unit and the second magnet unit when the moving member moves.

Description

Refrigerator The present invention relates to a refrigerator, and more particularly to an automatic opening device for a refrigerator door. Generally, a refrigerator may include a cabinet equipped with a storage compartment and a door for opening and closing the storage compartment. The storage room is surrounded by insulating walls so that the interior of the storage room maintains a lower temperature than the exterior, and the storage room can be divided into a refrigerator and/or a freezer depending on the temperature range of the storage room. The door is rotatably mounted on the cabinet, and a gasket may be provided between the door and the cabinet. Accordingly, when the door is closed, the gasket is tightly sealed between the door and the cabinet, preventing cold air from leaking from the storage compartment. The greater the sealing force of this gasket, the better the effect of preventing cold air leakage. Typically, to increase the sealing force of the gasket, it may be formed from a rubber magnet or equipped with a magnet inside the gasket. However, if the sealing force of the gasket is increased, a correspondingly greater force is required to open the door. Accordingly, refrigerators equipped with an automatic door opening function are being developed recently. Prior art Korean Patent Publication No. 10-2018-0119027 (Publication date: Nov. 01, 2018) discloses a refrigerator having a door opening device. The door of the refrigerator disclosed in the prior art consists of an inner door that is in close contact with the front of the cabinet and an outer door that is positioned in front of the inner door, and a door opening device is provided in the cabinet and configured to push the inner door open. However, the refrigerator disclosed in the prior art has a disadvantage in that it cannot automatically open the outer door because the outer door opens together with the inner door when the inner door is opened. Furthermore, in the refrigerator disclosed in the prior art, since the door opening device is provided in the cabinet, in order to open the outer door using the door opening device, it must be possible to open the outer door while avoiding interference with the inner door. This results in the disadvantage that not only is the length of the door opening device increased, but the structure of the door opening device also becomes complex. FIG. 1 is a perspective view showing the refrigerator door in a closed state in a refrigerator according to the present embodiment. FIG. 2 is a front view showing the second door of the refrigerator compartment door in an open state in a refrigerator according to the present embodiment. FIG. 3 is a front view showing the first door and the second door of the refrigerator compartment door in an open state in a refrigerator according to the present embodiment. FIG. 4 is a perspective view showing the first door and the second door in a refrigerator according to the present embodiment when the door locking device is in the locked position. FIG. 5 is a perspective view showing a lower part of the first door in a refrigerator according to the present embodiment. FIG. 6 is a perspective view showing a door opening device built into the second door of a refrigerator according to the present embodiment. FIGS. 7A and FIGS. 7B are schematic perspective views of a door opening device and a door locking device according to the present embodiment, where FIG. 7A is a view taken from the inside of the second door and FIG. 7B is a view taken from the outside of the second door. FIGS. 8A and 8B are perspective views showing the coupling relationship between the first magnet unit and the first movable member in a door opening device according to the present embodiment. FIG. 9 is a control block diagram of a refrigerator according to the present embodiment. FIG. 10 is a block diagram showing the operation of a door opening device and a door locking device in stages according to the travel distance of a first moving member according to the present embodiment. FIGS. 11A to 11C are plan views showing the door opening process of the door opening device according to the present embodiment in steps. FIG. 12 is an exploded perspective view of the anti-spreading device according to the present embodiment. FIG. 13 is a front view showing the opening prevention device assembled in FIG. 12. FIG. 14 is a plan view of FIG. 13. FIG. 15 is a perspective view showing another embodiment of a gap prevention device. FIG. 16 is a plan view showing another embodiment of a door opening device equipped with a gap prevention device. Hereinafter, a refrigerator according to the present invention will be described in detail based on an embodiment illustrated in the attached drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral as much as possible, even if they are shown in different drawings. In addition, w