发明名称 |
ABTAUEINRICHTUNG |
摘要 |
<p>A defrosting apparatus for removing frost deposited on a cooler of a refrigerator or an air conditioner employs a defrosting heater exhibiting a positive temperature coefficient of resistance which changes sharply at a specific temperature. A specific rate of change of the heater current of the defrosting heater is detected, and on the basis of the detected current change rate, stopping or starting of current supply to the defrosting heater is controlled. The defrosting heater is an organic type heater or an inorganic ceramic type heater possessing the function of self-temperature control.</p> |
申请公布号 |
DE3145445(A1) |
申请公布日期 |
1982.08.05 |
申请号 |
DE19813145445 |
申请日期 |
1981.11.16 |
申请人 |
HITACHI,LTD. |
发明人 |
OISHI,TETSU;ODA,MAKOTO;FUTAKI,HISAO |
分类号 |
F25D21/08;F25D21/00;G05D23/24;(IPC1-7):25D21/08 |
主分类号 |
F25D21/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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