HEATING APPARATUS
PROBLEM TO BE SOLVED: To provide a heating apparatus capable of reducing a risk that a heater constructed by an electric heating wire and warming a circumference maintains an excess high temperature state for a long time.SOLUTION: A heating apparatus comprises: a heater 47A that constructs a part of...
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Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a heating apparatus capable of reducing a risk that a heater constructed by an electric heating wire and warming a circumference maintains an excess high temperature state for a long time.SOLUTION: A heating apparatus comprises: a heater 47A that constructs a part of an electric circuit and generates a heat when supplying an electric power, and is constructed by an electric heating wire; a heated part 40A to which the heater is fixed, and applies a radiant heat to the circumference in response to the heat from the heater; and a current limit element 52 constructing a part of the electric circuit, which is distributed in the heated part so as to be heated by the heating from the heater, and is constructed so that a current flowing in the heater when an own temperature becomes a predetermined value or more is set to zero or is reduced.SELECTED DRAWING: Figure 5
【課題】電熱線によって構成され且つ周囲を暖めるヒータが、過剰な高温状態を長時間に渡って持続するおそれを低減可能な加熱装置を提供する。【解決手段】電気回路の一部を構成し且つ電力を供給されたときに発熱する、電熱線によって構成されたヒータ47Aと、ヒータが固定され、ヒータから熱を受けることにより周囲に輻射熱を及ぼす被加熱部40Aと、ヒータからの熱により加熱されるように被加熱部に配設され、且つ、自身の温度が所定値以上となったときにヒータに流れる電流をゼロにするか或いは減少させるように構成された、電気回路の一部を構成する電流制限素子52と、を備える。【選択図】図5 |
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