| 摘要 |
<p>9D-HR-14545 HOUSEHOLD REFRIGERATOR DEFROST SYSTEM A refrigerator including a compressor, an evaporator and a condenser with a temperature control so energize and de-energize the compressor. There is an electrical defrost heater for periodically warming the evaporator to defrost temperatures which is energized and de-energized by an electrical motordrive defrost control timer having a predetermined period of run time between initiation of each successive defrost cycle. The defrost control timer is energized to run only when the compressor is energized and the defrost control timer is delayed in running for a period of time each time the compressor is energized.</p> |
