ELECTRIC COMPRESSOR, CONTROL DEVICE, AND MONITORING METHOD

WIPO Patent Application WO/2016/152320

A1

An electric compressor equipped with: a compressor that rotates around a rotational axis, thereby compressing a fluid; an electric motor that drives the compressor so as to rotate around the rotational axis; and a control unit that has a first component and a second component, and that uses this first component and second component to control the supply of current when the electric motor is driving. The allowable current when the first component and the second component are exposed to the same temperature is set such that the allowable current of the second component is less than that of the first component. The second component is arranged at a location where the cooling capacity is greater than that of the first component, thereby setting the allowable power of the second component during rated usage to a greater value than the allowable power of the first component. This electric compressor also is equipped with a temperature sensor that detects the temperature of the first component, and a computation unit that outputs an alarm signal when the temperature detected by the temperature sensor and the current flowing in the first component satisfy a prescribed condition.

JP6580311	Vacuum pump and its operation method
JPS6323588	OPERATION CONTROLLER OF AIR CONDITIONER BY INVERTER CONTROL
JPH0746779	[Name of invention] Air pump automatic stop device

NAKAGAMI TAKASHI (JP)
TAKASHIGE TAKAYUKI (JP)

PCT/JP2016/054407

September 29, 2016

February 16, 2016

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MITSUBISHI HEAVY IND AUTOMOTIVE THERMAL SYS CO LTD (JP)

F04B49/10; F04C29/00

JP2010048103A	2010-03-04
JP2006233820A	2006-09-07
JP2013236476A	2013-11-21
JP2012253966A	2012-12-20
JP2015017734A	2015-01-29

MORI Ryuichirou et al. (JP)
Woods Ryuichiro (JP)

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