公开(公告)号：US20160282005A1

公开(公告)日：2016-09-29

申请号：US15078129

申请日：2016-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Eungho KIM ,  Jinsoo KIM ,  Gwigeun PARK

IPC: F24F11/00 ,  F24F1/38 ,  F04D29/32 ,  F25B13/00 ,  F04D25/06 ,  F04D27/00

CPC classification number: F24F1/38 ,  F04D25/068 ,  F04D27/004 ,  F04D29/321 ,  F04D29/325 ,  F24F11/30 ,  F24F11/77 ,  F25B13/00 ,  F25B49/022 ,  F25B2313/0294 ,  F25B2700/15 ,  H02M7/5387 ,  H02P21/00

Abstract: An outdoor fan motor driving device and an air conditioner including an outdoor fan motor driving device are provided, which may include an inverter to convert DC power into AC power according to a switching operation and to output the converted AC power to an outdoor fan motor, an output current detector to detect phase currents flowing in the outdoor fan motor, and a controller to control the inverter based on the detected phase currents. When the outdoor fan motor is rotated by external wind, in a state in which all of lower arm switching elements, among upper arm switching elements and lower arm switching elements of the inverter, are turned on before the outdoor fan motor is driven, with the result that levels of the phase currents flowing in the outdoor fan motor are between a first level and a second level, the controller may control the outdoor fan motor such that a rotational speed of the outdoor fan motor is increased while the outdoor fan motor is rotated in a first direction and then rotated in a second direction opposite to the first direction during a speed increase period of the outdoor fan motor after an alignment period during which a rotor of the outdoor fan motor is aligned when the outdoor fan motor is driven.

Abstract translation: 提供一种室外风扇电动机驱动装置和包括室外风扇电动机驱动装置的空调机，其可以包括逆变器，其根据开关操作将DC电力转换成AC电力并将转换的AC电力输出到室外风扇电动机， 用于检测在室外风扇电动机中流动的相电流的输出电流检测器，以及基于检测到的相电流来控制逆变器的控制器。 当外部风扇电动机由外部风旋转时，在驱动室外风扇电动机之前，在逆变器的上臂开关元件和下臂开关元件中的所有下臂开关元件都被接通的状态下， 导致在室外风扇电动机中流动的相电流的电平处于第一电平和第二电平之间，控制器可以控制室外风扇电动机，使得室外风扇电动机的转速在室外风扇电动机旋转时增加 在户外风扇电动机的转子在驱动室外风扇电动机时对准的对准期间，在室外风扇电动机的增速期间，沿第一方向在与第一方向相反的第二方向旋转。

公开(公告)号：US20210269964A1

公开(公告)日：2021-09-02

申请号：US17031251

申请日：2020-09-24

Applicant: LG Electronics Inc.

Inventor： Taejin SHIN ,  Jinsoo KIM ,  Cheolmin JANG ,  Seongjin SEO ,  Jinman JANG

IPC: D06F39/12 ,  D06F37/22

Abstract: An apparatus for laundry treatment includes: a cabinet defining an entrance at one side, a drum defining a space for receiving laundry therein, a duct connected to the drum, a fan configured to move air in the drum into the duct, a heat exchange part including a heat absorption part configured to remove moisture from the air moved into the duct and a heating part configured to heat the air having passed through the heat absorption part, a compressor configured to increase a temperature of the air by compressing a refrigerant having passed through the heat absorption part, a water collecting part configured to receive the moisture removed by the heat exchange part, and a soundproof panel provided at a bottom of a base part that is located at a bottom of the cabinet.