Title:
DEFROSTING HEATER AND COOLING DEVICE USING IT
Document Type and Number:
Japanese Patent JP3933996
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a defrosting heater not becoming a source of fire catching even in case a refrigerant gas leaks outside a cooling mechanism for a cooling device using as the refrigerant a flammable gas not causing destruction of the ozone layer.
SOLUTION: It is so structured that a heating element formed with a sintering body including a carbon system matter which can adjust a resistivity value at several thousands to several millions μΩ/cm is sealed inside a quartz glass tube. because of a good linear relation between a value (watt density) of a consumption power (W) divided by a surface temperature of the heating element, designing of the surface temperature and the consumption power of the quartz glass tube is freely made by adjusting the shape and resistivity value of the heating element.
Inventors:
Kenji Higashiyama
Application Number:
JP2002167483A
Publication Date:
June 20, 2007
Filing Date:
June 07, 2002
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H05B3/44; F25B1/00; F25D11/00; F25D21/08; H05B3/14; (IPC1-7): H05B3/44; F25B1/00; F25D11/00; F25D21/08; H05B3/14
Domestic Patent References:
| JP2002015842A | ||||
| JP2002015711A | ||||
| JP2001349660A | ||||
| JP11179233A |
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Mitsuo Wada
Ryuji Higashijima
Mitsuo Tanaka
Mitsuo Wada
Ryuji Higashijima
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