AIR CONDITIONER - MITSUBISHI HEAVY IND LTD

Title:

AIR CONDITIONER

Document Type and Number:

WIPO Patent Application WO/2011/099190

Kind Code:

A1

Abstract:

Provided is an air conditioner wherein it is possible to suppress the size increase and cost increase of the device, and to perform more appropriate overheating protection. An inverter-integrated electric compressor (10) is integrally provided with a compressor (5), an electric motor (6) for driving the compressor (5), and an inverter (7) having a temperature sensor (11) for detecting the temperature near a semiconductor switching element. A control unit (3) estimates the discharge temperature of the compressor (5) on the basis of the correlation between the pressure load characteristics, during the cooling cycle (2), of the detected temperature of the inverter (7), the number of rotations of the compressor (5), and the power of the compressor (5).

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Inventors:

HAGITA TAKAYUKI (JP)
TAKASHIGE TAKAYUKI (JP)
NAKAGAWA NOBUYA (JP)
ISHII MIKIHIKO (JP)
HIRANO TAKESHI (JP)
NAKANO KOJI (JP)
ISHIKAWA MASAYUKI (JP)

Application Number:

PCT/JP2010/064464

Publication Date:

August 18, 2011

Filing Date:

August 26, 2010

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
HAGITA TAKAYUKI (JP)
TAKASHIGE TAKAYUKI (JP)
NAKAGAWA NOBUYA (JP)
ISHII MIKIHIKO (JP)
HIRANO TAKESHI (JP)
NAKANO KOJI (JP)
MASAYUKI ISHIKAWA (JP)

International Classes:

F24F11/02; F04B49/10; F25B49/02

Foreign References:

JP2007198230A	2007-08-09
JP2006291878A	2006-10-26
JP2004116920A	2004-04-15
JPH11281213A	1999-10-15
JP2006291878A	2006-10-26

Other References: