公开(公告)号：US20160090975A1

公开(公告)日：2016-03-31

申请号：US14867337

申请日：2015-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Gyunam KIM ,  Kyunghoon JUNG ,  Jaeyoo YOO

IPC: F04B35/04 ,  F04B51/00 ,  F04B49/06

CPC classification number: F04B35/04 ,  F04B35/045 ,  F04B49/06 ,  F04B49/065 ,  F04B51/00 ,  F04B2203/0401 ,  F04B2203/0402 ,  H02P25/06

Abstract: An apparatus and method for controlling a linear compressor are provided. The apparatus and method may identify a kind of motor of a linear compressor, based on an output which may be measured by applying a test signal to the linear compressor, and may control the linear compressor depending on the identified kind of motor. The apparatus and method may diagnose whether the linear compressor has broken down, and thus, the kind of motor may be autonomously identified without a separate device or a measurement operation, control suitable for a characteristic or characteristics of the motor may be accurately and efficiently controlled, and maintenance, repair, and inspection of the linear compressor may be simply and easily performed.

Abstract translation: 提供了一种用于控制线性压缩机的装置和方法。 该装置和方法可以基于可以通过将测试信号施加到线性压缩机来测量的输出来识别线性压缩机的一种电动机，并且可以根据所识别的电动机类型来控制线性压缩机。 该装置和方法可以诊断线性压缩机是否已经断裂，因此，可以在没有单独的装置或测量操作的情况下自动识别电动机的种类，可以精确和有效地控制适合于电动机的特性或特性的控制 ，并且可以简单且容易地执行线性压缩机的维护，修理和检查。

公开(公告)号：US20180195509A1

公开(公告)日：2018-07-12

申请号：US15857369

申请日：2017-12-28

Applicant: LG Electronics Inc.

Inventor： Sungjin LIM ,  Gyunam KIM ,  Nayi RYU

IPC: F04B49/06 ,  F04B35/04 ,  F04B49/22 ,  G05B17/02

CPC classification number: F04B49/065 ,  F04B35/04 ,  F04B49/06 ,  F04B49/22 ,  F04B2201/0201 ,  F04B2203/0401 ,  F04B2203/0402 ,  G05B17/02

Abstract: Provided is a linear compressor capable of reducing noise and manufacturing cost. The linear compressor includes a piston reciprocating within a cylinder, a motor providing a driving force for movement of the piston, a sensing unit sensing a motor voltage and a motor current related to the motor, a discharge part installed at one end of the cylinder and adjusting discharge of a refrigerant compressed within the cylinder, and a controller detecting a load variation of the motor using at least one of the motor voltage and the motor current, calculating a compensation value related to a position of the piston each time a load variation of the motor is detected, and detecting an absolute position of the piston using the calculated compensation value.

公开(公告)号：US20170335839A1

公开(公告)日：2017-11-23

申请号：US15519919

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Jaeyoo YOO ,  Sungho PARK ,  Gyunam KIM

IPC: F04B49/06 ,  F04B35/04 ,  H02P25/032 ,  H02M1/14 ,  H02P27/06 ,  H02M5/458

CPC classification number: F04B49/06 ,  F04B35/04 ,  F04B2203/0202 ,  H02M1/14 ,  H02M5/4585 ,  H02P25/032 ,  H02P27/06

Abstract: A compressor control apparatus includes a rectifying unit configured to rectify power applied from the outside, a DC link unit configured to include a pair of capacitors and smooth the rectified voltage, an inverter unit configured to include a pair of switches and convert the smoothed DC voltage into a driving voltage of a motor according to a control signal, and a control unit configured to generate the control signal, wherein the control unit applies a DC offset voltage to the driving voltage according to a direction of a current applied to the motor on the basis of a result obtained by comparing voltages across the pair of capacitors.