Title:
LINEAR COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2011/062427
Kind Code:
A3
Abstract:
The present invention relates to a linear compressor, and more specifically, to a linear compressor capable of providing greater power by varying a frequency during the high load condition. The linear compressor of the present invention comprises: a fixed member which includes a compression space inside; a movable member which linearly reciprocates inside the fixed member, and compresses refrigerant sucked into the compression space; at least one spring which is configured to elastically support the movable member in a moving direction of the movable member; a mechanical unit which includes a motor that is configured to connect with the movable member and allows the movable member to linearly reciprocate in an axial direction; a rectification unit which receives AC power, and outputs the AC power as a DC voltage; an inverter unit which is applied with the DC voltage, converts the DC voltage into an AC voltage according to a control signal, and provides the AC voltage to the motor; a voltage sensor which senses the DC voltage outputted by the rectification unit; a current sensor which senses a current flowing between the motor and the inverter unit; and an electric control unit including a controller, which controls a necessary voltage of the motor from the current of the current sensor, and applies the control signal to the inverter unit by generating the control signal for controlling so that a frequency of the AC voltage converted by the inverter unit may be changed, if the necessary voltage is larger than the DC voltage of the voltage sensor.
Inventors:
HU JIN SEOK (KR)
PARK SHIN HYUN (KR)
KIM YONG TAE (KR)
KIM YOUNG GEUL (KR)
LEE HOON BONG (KR)
KANG KYE LYONG (KR)
PARK SHIN HYUN (KR)
KIM YONG TAE (KR)
KIM YOUNG GEUL (KR)
LEE HOON BONG (KR)
KANG KYE LYONG (KR)
Application Number:
PCT/KR2010/008159
Publication Date:
November 03, 2011
Filing Date:
November 18, 2010
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
HU JIN SEOK (KR)
PARK SHIN HYUN (KR)
KIM YONG TAE (KR)
KIM YOUNG GEUL (KR)
LEE HOON BONG (KR)
KANG KYE LYONG (KR)
HU JIN SEOK (KR)
PARK SHIN HYUN (KR)
KIM YONG TAE (KR)
KIM YOUNG GEUL (KR)
LEE HOON BONG (KR)
KANG KYE LYONG (KR)
International Classes:
F04B17/04; F04B35/04
Foreign References:
| KR100801373B1 | 2008-02-05 | |||
| KR100764277B1 | 2007-10-05 | |||
| KR100845943B1 | 2008-07-11 | |||
| JP2001090659A | 2001-04-03 |
Attorney, Agent or Firm:
LEE, Kwang-Yeon (9th F. Handuk Bldg.649-4 Yoksam-dong, Gangnam-gu, Seoul 135-912, KR)
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