Refrigerator

Abstract

A refrigerator comprises a cabinet configured to define a storage chamber; a door comprising a door part configured to open and close the storage chamber and a drawer part configured to provide a storage chamber; and a rail configured to connect the door to the cabinet, the rail being configured to insert and withdraw the door; a driving device, which is arranged on the door part and provides power; and an elevation device, which is arranged on the drawer part and is connected to the driving device to vertically elevate a portion of the drawer part. The driving device includes: a motor assembly; a screw unit disposed on each of both sides with respect to the motor assembly, the screw unit being connected to the motor assembly to operate at the same time; and a lever configured to rotate bythe screw unit, the lever being connected to the elevation device to provide power for elevating the elevation device, wherein the screw unit comprises: a housing; a screw disposed in the housing, the screw being gear-coupled to a gear of the motor assembly to rotate; a screw holder penetrated by the screw, the screw having a screw thread corresponding to the screw to move along the screw; and aguide bar disposed parallel to the screw inside the housing, the guide bar passing through the screw holder to guide the movement of the screw.

Description

technical field [0001] The present invention relates to refrigerators. Background technique [0002] Generally, a refrigerator is a home appliance for low-temperature storage of food in an internal storage space covered by a door of the refrigerator. For this reason, the refrigerator cools the inside of the storage space using cold air generated by heat exchange with the refrigerant circulating in the refrigeration cycle, thereby being able to keep stored food in an optimal state. [0003] With the change of dietary life and the trend of high-end products, recent refrigerators have gradually become larger and more multi-functional. For the convenience of users and the effective use of internal space, various structures and convenience devices are constantly appearing. refrigerator. [0004] The storage space of the refrigerator can be opened and closed through the refrigerator door. In addition, refrigerators can be classified into various forms according to the arrangeme...

AI Technical Summary

Problems solved by technology

[0009] However, in this prior art, the elevating mechanism for elevating and elevating has a structure that is arranged outside the storage room and is exposed, thereby causing serious safety problems.

In addition, since the lifting mechanism has a structure exposed to the outside, there is a problem of poor appearance

[0010] In addition, since the driving part is exposed to the outside, noise may be directly transmitted to the outside when the driving part is operating, which may cause dissatisfaction among users.

[0011] In addition, the lifting mechanism is arranged inside the refrigerator, so the storage capacity inside the refrigerator may be significantly reduced, which may cause a loss of storage capacity of the entire refrigerator and may become a problem that significantly reduces storage efficiency.

[0012] In addition, the lifting mechanism is all installed inside the refrigerator, so when maintaining the lifting mechanism, it is necessary to separate the refrigerator door and the lifting mechanism, which reduces maintainability.

[0013] Moreover, the driving part of the lifting mechanism has a structure that can lift the storage room by pushing one end of the cross support assembly. Therefore, when there is a storage room structure with a large capacity or a heavy object is arranged inside the storage room, it cannot provide Sufficient Power for Lifting and Lifting

Of course, in order to solve the above problems, the size of the drive unit motor can also be increased, but in this case, there will be problems such as further increasing the volume loss in the refrigerator, increasing noise, and increasing manufacturing costs.

[0014] Moreover, the lifting mechanism supports one side of the entire bottom surface of the storage room due to the arrangement position of the drive unit, so when the storage room is full of storage items, only eccentric loads can occur, so that the refrigerator door cannot Under the action of eccentric load, serious safety problems will occur, and there will also be problems that the lifting action cannot be carried out smoothly.

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