Integrated refrigeration control

An integrated refrigeration control (IRC) module is disclosed which combines both thermal and electrical protection to the main components of a refrigerator and uses sensor inputs to control the compressor. The IRC module employs triacs (Q2, Q4, Q6, Q8, Q10) to control power to the start and run win...

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1. Verfasser: DENVIR KERRY J
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creator DENVIR KERRY J
description An integrated refrigeration control (IRC) module is disclosed which combines both thermal and electrical protection to the main components of a refrigerator and uses sensor inputs to control the compressor. The IRC module employs triacs (Q2, Q4, Q6, Q8, Q10) to control power to the start and run windings of the compressor motor, evaporator and compressor fans and the defrost heater. The module adaptively controls the refrigerator defrost cycle using previous defrost cycle run times to determine new cumulative compressor run times. Also disclosed is the use of preventive defrost periods performed for brief periods at intervals between portions of the cumulative compressor run time.
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subjects BLASTING
COLD ROOMS
COMBINED HEATING AND REFRIGERATION SYSTEMS
COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS
HEAT PUMP SYSTEMS
HEATING
ICE-BOXES
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
REFRIGERATION OR COOLING
REFRIGERATORS
WEAPONS
title Integrated refrigeration control
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