Refrigeration control system and method

Details Refrigeration control system and method Refrigeration control system and method

1988-03-31

1990-04-03

Wayner, William E.

Refrigeration

Automatic control

Time or program actuator

62230, 361 22, 361 33, 417 32, G05D 2332, H02H 700

Patent

active

049129368

ABSTRACT:
A compressor controller of a refrigerating device comprises a power supply voltage detecting device, a voltage comparing device, and a compressor driving device. When the temperature in a compartment of the refrigerating device rises and the compressor is required to be driven to cool the compartment, the power supply voltage detecting device detects the voltage of the power supply which feeds power to the compressor. The voltage comparing device compares the power supply voltage with a reference voltage. When the power supply voltage is no lower than the reference voltage, the compressor driving device starts the compressor. The compressor controller also includes a compressor starting condition detecting device, a compressor halting device, and a voltage compensating device. The compressor starting condition detecting device detects the starting condition of the compressor by detecting the voltage or the current which is fed to the compressor by the power supply. When a compressor starting failure is detected, the compressor halting device halts the compressor immediately. Further, the voltage compensating device increases the reference voltage.

REFERENCES:
patent: 3946574 (1976-03-01), Portera
patent: 4084406 (1978-04-01), Brenneman
patent: 4415943 (1983-11-01), Wortman
patent: 4620425 (1986-11-01), O'Grady

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