| 摘要 |
PROBLEM TO BE SOLVED: To raise temperature effectively by dint of using a carbon fiber which has a necessary volumetric efficiency by combining a heating element which has a radiator of far infrared rays with insulators in which the heating element in inserted and disposing a pulsating flow generating means in an electric wiring which connects the heating element with a power source, then decreasing a heating value of the heating element. SOLUTION: A heater 10 is constituted of a heating element which is made of a carbon fiber and insulating layers which are arranged at both sides of the heating element. For example, a half-wave rectifier 21 is disposed as a pulsating flow generating means on a halfway of an electric wiring 22 which connects the heater 10 with a power source 20 for domestic use. Heating value of the heating element is reduced by half by setting an electrification from the power source 20 to a half-waveform 30 and also setting an electric current which is supplied to the heater 10 to a pulsating flow waveform then an electrification to the heater 10 is reduced by half, i.e., 50% reduction. Thereby, an electric current which is supplied to the heater 10 is controlled as a pulsating flow (pulse flow) and the heating value of the heating element can be made to coincide with a required value. Therefore, temperature can be raised effectively by using a carbon fiber whose electrical resistance value is relatively low. |
