APPARATUS FOR DEFECTION OF STROKE SHAKING OF DETECTION OF LINEAR COMPRESSOR AND ITS METHOD

摘要

PROBLEM TO BE SOLVED: To provide an apparatus for detection of shaking of stroke of a linear compressor and its method, capable of preventing malfunction of the linear compressor caused by an external voltage and a noise, by detecting stroke shaking by variations of a stroke and a current phase difference. SOLUTION: This stroke shaking detection device of the linear compressor is constituted, by including a stroke/current phase difference detection part 300 for detecting the stroke and the current phase difference of the linear compressor 100, a phase difference variation calculation part 400 for calculating the variation of the phase difference by the detected stroke and the current phase difference, a stroke shaking detection part 500 for comparing the calculated phase difference variation with a reference value, to thereby determine the stroke shaking, and a stroke controller 600 for controlling the operation of the linear compressor 100, by a stroke shaking detection signal outputted from the stroke shaking detection part 500.