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:
Nov. 24, 2015
Filed:
Nov. 18, 2010
Jin Seok HU, Masan-si, KR;
Shin Hyun Park, Busan, KR;
Yong Tae Kim, Gimhae-si, KR;
Hoon Bong Lee, Changwon-si, KR;
Kye Lyong Kang, Changnyeong-gun, KR;
Jin Seok Hu, Masan-si, KR;
Shin Hyun Park, Busan, KR;
Yong Tae Kim, Gimhae-si, KR;
Hoon Bong Lee, Changwon-si, KR;
Kye Lyong Kang, Changnyeong-gun, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
A linear compressor is provided that provides a greater power by changing a frequency at high load. The linear compressor includes a mechanical device having a fixed member, a movable member linearly reciprocated in the fixed member, one or more springs provided to elastically support the movable member, and a motor connected to the movable member, and an electric controller having a rectifier, an inverter that receives a DC voltage from the rectifier, converts the DC voltage to an AC voltage, and supplies the AC voltage to the motor, a voltage sensor that senses the DC voltage, a current sensor that senses a current, and a controller that calculates a required voltage for the motor, generates a control signal, and applies the control signal to the inverter, if the required voltage is greater than the DC voltage of the voltage sensor.