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Title:
REFRIGERATION AND AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/148413
Kind Code:
A1
Abstract:
A refrigeration and air-conditioning device is provided with: a refrigeration cycle configured by connecting a compressor, a condenser, an expansion means, and an evaporator and performing cooling operation; a heating device for the evaporator, adapted to heat the evaporator; a drain pan for receiving and discharging drain water flowing from the evaporator; a heating device for the drain pan, adapted to heat the drain pan; a frost detection means provided with a light emitting element for applying light to the evaporator and also with a light receiving element for receiving reflected light from the evaporator and outputting a voltage corresponding to the reflected light; and a control device for controlling the on/off of the heating device for the evaporator and the on/off of the heating device for the drain pan. The control device determines the frost state of the evaporator from the output of the frost detection means and individually controls the heating device for the evaporator and the heating device for the drain pan.

Inventors:
HAMADA, Mamoru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
濱田守 (〒10 東京都千代田区丸の内二丁目7番3号三菱電機株式会社内 Tokyo, 〒1008310, JP)
UNEZAKI, Fumitake (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
畝崎史武 (〒10 東京都千代田区丸の内二丁目7番3号三菱電機株式会社内 Tokyo, 〒1008310, JP)
MORIKAWA, Akira (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
守川彰 (〒10 東京都千代田区丸の内二丁目7番3号三菱電機株式会社内 Tokyo, 〒1008310, JP)
UEYAMA, Satoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
上山智嗣 (〒10 東京都千代田区丸の内二丁目7番3号三菱電機株式会社内 Tokyo, 〒1008310, JP)
YAMASHITA, Koji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2010/003511
Publication Date:
December 01, 2011
Filing Date:
May 26, 2010
Export Citation:
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Assignee:
Mitsubishi Electric Corporation (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目7番3号 Tokyo, 〒1008310, JP)
HAMADA, Mamoru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
濱田守 (〒10 東京都千代田区丸の内二丁目7番3号三菱電機株式会社内 Tokyo, 〒1008310, JP)
UNEZAKI, Fumitake (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
畝崎史武 (〒10 東京都千代田区丸の内二丁目7番3号三菱電機株式会社内 Tokyo, 〒1008310, JP)
MORIKAWA, Akira (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
守川彰 (〒10 東京都千代田区丸の内二丁目7番3号三菱電機株式会社内 Tokyo, 〒1008310, JP)
UEYAMA, Satoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
上山智嗣 (〒10 東京都千代田区丸の内二丁目7番3号三菱電機株式会社内 Tokyo, 〒1008310, JP)
International Classes:
F25B47/02
Attorney, Agent or Firm:
KOBAYASHI, Hisao et al. (KISA PATENT & TRADEMARK FIRM, The 6th Central Bldg. 19-10, Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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Claims: