公开(公告)号：US20040071556A1

公开(公告)日：2004-04-15

申请号：US10668153

申请日：2003-09-24

Applicant: LG Electronics Inc.

Inventor： Ji-Won Sung ,  Chel-Woong Lee ,  Jae-Yoo Yoo ,  Hyuk Lee ,  Hyung-Jin Kim

IPC: F04B049/06

CPC classification number: F04B35/045 ,  F04B49/06 ,  F04B2201/0206 ,  F04B2203/0401 ,  F04B2203/0402

Abstract: An apparatus and a method for controlling operation of a reciprocating compressor is capable of reducing a stroke estimation error by eliminating an error that occurs due to resistance and inductance of a compressor motor by estimating a stroke with a counter electromotive force induced by a searching coil. Furthermore, by leaving errors of inductance and resistance, among all motor parameters, out of consideration in stroke estimation, a stroke estimation error can be reduced.

Abstract translation: 用于控制往复式压缩机的操作的装置和方法能够通过利用由搜索线圈引起的反电动势估计行程来消除由于压缩机电动机的电阻和电感而发生的误差来减少行程估计误差。 此外，通过在所有电动机参数中留下电感和电阻的误差，考虑到笔划估计中，可以减少行程估计误差。

公开(公告)号：US20040066163A1

公开(公告)日：2004-04-08

申请号：US10406307

申请日：2003-04-04

Applicant: LG Electronics Inc.

Inventor： Jae Yoo Yoo ,  Chel Woong Lee ,  Ji Won Sung ,  Hyuk Lee

IPC: G05D023/275

CPC classification number: F04B35/045 ,  F04B49/06 ,  F04B2201/0206 ,  F04B2203/0401 ,  F04B2203/0402

Abstract: An apparatus and a method are disclosed for controlling operation of a compressor capable of greatly decreasing a stroke estimation error of a compressor and controlling operation of the compressor accurately and precisely. The method includes calculating a first stroke estimation value of a compressor on the basis of current, a voltage applied to a motor of a compressor and preset parameters of the motor. Detecting a counter electromotive force of the motor and calculating a second stroke estimation value of the compressor on the basis of the detected counter electromotive force value. Determining a new stroke reference value by comparing the first stroke estimation value with the second stroke estimation value, adding or subtracting a stroke compensation value corresponding to the comparison result to or from a preset stroke reference value, and controlling a stroke of the compressor by varying a voltage applied to the motor on the basis of the determined stroke reference value and the first stroke estimation value.

公开(公告)号：US20040042914A1

公开(公告)日：2004-03-04

申请号：US10642682

申请日：2003-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Hyung-Jin Kim ,  Tae-Hee Kwak ,  Hyuk Lee

IPC: F04B039/00

CPC classification number: F04B35/045 ,  F04B39/0061

Abstract: A reciprocating compressor includes a case having a gas suction pipe and a gas discharge pipe. A frame unit is installed in the case and a compression unit, including a cylinder is installed in the frame unit. The compression unit has a plurality of slots formed in a longitudinal direction on its outer circumferential surface. A piston is coupled with a reciprocating motor so as to linearly and reciprocally move into and out of the cylinder and has a plurality of through holes formed at its outer side, communicating with the slots. The compression unit has a gas muffler member installed at an outer circumferential surface of the cylinder.

Abstract translation: 往复式压缩机包括具有气体吸入管和排气管的壳体。 框架单元安装在壳体中，并且包括气缸的压缩单元安装在框架单元中。 压缩单元具有在其外周面上沿纵向方向形成的多个槽。 活塞与往复运动马达结合，以便直线地往复移动进入和离开缸体，并且在其外侧形成有与槽连通的多个通孔。 压缩单元具有安装在气缸的外周面的气体消声器构件。

公开(公告)号：US20020113565A1

公开(公告)日：2002-08-22

申请号：US09983942

申请日：2001-10-26

Applicant: LG ELECTRONICS INC.

Inventor： Hyung Jin Kim ,  Kye Si Kwon ,  Hyuk Lee

IPC: H01H001/00 ,  H02P001/00 ,  H02P001/04 ,  H02P003/00 ,  H02P005/00 ,  H02P007/00 ,  H02P007/20 ,  H02P007/22 ,  H02P007/54 ,  H02P007/56

CPC classification number: H02K3/28 ,  F04B35/045

Abstract: A coil winding number variable type motor for varying a cooling and heating capacity of a reciprocating motor includes: a plurality of coils separately wound and connected in series to each other so as to vary turn ratio among motor coils; a plurality of relays respectively connected between adjacent coils among the plurality of coils; and a relay controller for outputting and ON/OFF control signal for varying the winding number of the motor coil and controlling the relays according to a change in a load and a power supply voltage. The coil wound in the motor of the reciprocating compressor is divided into the main coil and the plurality of sub-coils and the winding number of the motor coil is varied by itself to control the stroke of the reciprocating compressor, thereby effectively coping with the change in the voltage or the load.

Abstract translation: 一种用于改变往复式电机的冷却和加热能力的线圈绕组数量可变型电动机包括：多个线圈，它们彼此串联并串联连接，以便改变电机线圈之间的匝数比; 分别连接在所述多个线圈中的相邻线圈之间的多个继电器; 以及用于输出和ON / OFF控制信号的继电器控制器，用于改变电动机线圈的绕组数，并根据负载和电源电压的变化来控制继电器。 卷绕在往复式压缩机的马达中的线圈被分成主线圈和多个子线圈，并且马达线圈的绕组数本身变化以控制往复式压缩机的冲程，从而有效地应对变化 在电压或负载。