Refrigeration – Automatic control – Refrigeration producer
Patent
1994-04-15
1995-07-04
Tanner, Harry B.
Refrigeration
Automatic control
Refrigeration producer
62243, 323901, F25B 4900, B60H 100
Patent
active
054289670
ABSTRACT:
An electric car air-conditioning apparatus, which is small in size and capable of preventing abnormal heating upon occurrence of a failure and preventing damage when a capacitor is connected with its polarity reversed, provided with a current-conduction detecting device for detecting the operation of current conduction of a current conducting device for charging the capacitor with a current from a battery, and a power breaking device for breaking a current from the battery, wherein a control section actuates the power breaking device to break the current from the battery in the case where the current-conduction detecting device detects the operation of current conduction for a period longer than a predetermined time when the control section is not outputting a control signal for closing a switching device through which power is supplied from the battery to drive a motor-driven compressor, and in the case where the current-conduction detecting device detects the operation of current conduction when the control section is outputting the control signal for closing the switching device.
REFERENCES:
patent: 4227139 (1980-10-01), Rosink et al.
patent: 4482854 (1984-11-01), Kawada et al.
patent: 4982306 (1991-01-01), Koroncai et al.
patent: 5179842 (1993-01-01), Kanazawa
patent: 5209075 (1993-05-01), Kim
patent: 5241255 (1993-08-01), Oshima et al.
Goto Naomi
Nishimiya Masafumi
Yoshida Makoto
Matsushita Electric - Industrial Co., Ltd.
Tanner Harry B.
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