公开(公告)号：US20200240406A1

公开(公告)日：2020-07-30

申请号：US16671823

申请日：2019-11-01

Applicant: LG Electronics Inc.

Inventor： Heesun KIM ,  Youngdoo KIM ,  Jinseok HU

IPC: F04B49/12 ,  H02K41/02 ,  F04B35/04

Abstract: A linear compressor includes a cylinder, a piston, a linear motor configured to drive the piston, a current detection unit configured to sense a current in the linear motor, a relay configured to change an operation mode of the linear motor, and a control unit configured to set at least one parameter for determining a stroke of the piston according to the operation mode. The control unit is configured to: determine a first magnitude of a first current in the linear motor based on a state of the relay being in a first state, determine a second magnitude of a second current in the linear motor based on the relay being switched to a second state from the first state, compare the first magnitude to the second magnitude, and based on the comparison of the first magnitude to the second magnitude, determine whether the relay fails to operate.

公开(公告)号：US20170059228A1

公开(公告)日：2017-03-02

申请号：US15090313

申请日：2016-04-04

Applicant: LG ELECTRONICS INC.

Inventor： Jinseok HU ,  Namhun KIM ,  Youngdoo KIM

IPC: F25D17/06 ,  F25B49/02 ,  F25B13/00

CPC classification number: F25D17/065 ,  F25B13/00 ,  F25B49/02 ,  F25D17/04 ,  F25D17/045 ,  F25D2317/0651 ,  F25D2317/0653 ,  F25D2317/0663 ,  F25D2317/0665 ,  F25D2317/0666 ,  F25D2400/06 ,  F25D2700/12 ,  F25D2700/122

Abstract: A refrigerator and a method of control thereof, whereby after driving of a compressor and a blower fan is stopped as temperatures of a refrigeration compartment and a freezer compartment are in a satisfactory state, opening/closing operations of a damper are repeatedly performed, so that cold air in the freezer compartment is supplied into the refrigeration compartment. Alternatively, if the temperature of the refrigeration compartment reaches an upper limit temperature, the repeated opening/closing operations of the damper are started. The repeated opening/closing operations of the damper are performed until the temperature of the refrigeration compartment reaches a lower limit temperature, so that a cooling operation of the refrigeration compartment is performed only once while the compressor is being driven.

Abstract translation: 一种冰箱及其控制方法，由于当冷藏室和冷冻室的温度处于令人满意的状态时，在压缩机和鼓风机的驱动停止之后，重复执行风门的打开/关闭操作，使得 冷冻室中的冷空气被供应到冷藏室中。 或者，如果冷藏室的温度达到上限温度，则开始减震器的反复打开/关闭操作。 执行阻尼器的重复打开/关闭操作，直到冷藏室的温度达到下限温度，使得在驱动压缩机时仅进行冷藏室的冷却操作一次。