The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2013
Filed:
Feb. 22, 2011
Jin Seok HU, Masna-si, KR;
Shin Hyun Park, Pusan, KR;
Young Geul Kim, Pusan, KR;
Kyo Lyong Kang, Changyeong-gun, KR;
Jin Seok Hu, Masna-si, KR;
Shin Hyun Park, Pusan, KR;
Young Geul Kim, Pusan, KR;
Kyo Lyong Kang, Changyeong-gun, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present invention discloses a linear compressor which makes it possible to precisely operate a voltage using a current without having a high-capacity capacitor connected in series to a motor. The linear compressor comprises a mechanical unit including a fixed member having a compression space therein, a movable member linearly reciprocated in the fixed member to compress a refrigerant sucked into the compression space, one or more springs provided to elastically support the movable member in the motion direction of the movable member, and a motor connected to the movable member to linearly reciprocate the movable member in the axial direction, and an electric control unit including a rectification unit receiving AC power and outputting a DC voltage, an inverter unit receiving the DC voltage, converting the DC voltage to an AC voltage according to a control signal, and supplying the AC voltage to the motor, a current sensing unit sensing a current flowing between the motor and the inverter unit, an integrator circuit unit integrating a voltage corresponding to the current from the current sensing unit, and a control unit receiving an integrated value from the integrator circuit unit and controlling the AC voltage applied to the motor to permit the reciprocation of the movable member.