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Patent Searching and Data


Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2019/176004
Kind Code:
A1
Abstract:
This air conditioner (100) is provided with: a compressor (1) which compresses and discharges a refrigerant; an inverter circuit (2) which drives the compressor (1) with a driving current; a current detection circuit (4) which detects the driving current; and a microcomputer (3) which controls the inverter circuit (2) on the basis of a detection result of the current detection circuit (4), wherein if a difference between the absolute value of the peak value of the driving current when the compressor (1) suctions the refrigerant or compresses the refrigerant and the absolute value of the peak value when the compressor (1) discharges the refrigerant exceeds a first threshold value, the microcomputer (3) determines that a high-pressure abnormality has occurred in a connection pipeline connected to the compressor (1).

Inventors:
KAWAUCHI, Satoru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
YAMAKAWA, Hidetoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2018/009937
Publication Date:
September 19, 2019
Filing Date:
March 14, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F25B49/02; F24F11/38
Foreign References:
JP2010203623A2010-09-16
JPH05264404A1993-10-12
JP2004060457A2004-02-26
Attorney, Agent or Firm:
TAKAMURA, Jun (Sakai International Patent Office, Toranomon Mitsui Building 8-1, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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