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Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2019/097562
Kind Code:
A1
Abstract:
Conventional air conditioners are often provided with an electrical component protective device which sets an upper-limit operating frequency for a compressor by determining whether the temperature of a heat dissipation board is falling or rising. However, when the operating frequency is raised in such a conventional air conditioner, the temperature of the heat dissipation board is detected even though the quantity of heat released from electronic components has not yet been transferred to the heat dissipation board, and an upper-limit operating frequency is set. This could pose a problem of a temperature overshoot in the heat dissipation board due to a shortage in heat dissipation capacity of the heat dissipation board when the heat quantity has been transferred to the heat dissipation board. An air conditioner according to the present invention is configured such that the lower the temperature of the heat dissipation board, the larger the increment of the operating frequency of the compressor. Hence, in the present invention, the higher the temperature of the heat dissipation board, the more that temperature increase of the heat dissipation board is suppressed, and thus temperature overshoot can be suppressed.

Inventors:
TORII, Yuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/040849
Publication Date:
May 23, 2019
Filing Date:
November 14, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F24F11/86; F24F11/46; F24F11/61; F24F11/62
Foreign References:
JPH0626695A1994-02-04
JPH03211363A1991-09-17
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
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