Heating Device

摘要

Heating device includes: heater (2) with heating portion (6) generating heat by energization; housing (4) contains the heating portion and forms passage (18) for a heating medium between the housing and the heating portion; temperature detection means (26) detects, in the passage, temperature (T) inside the housing due to heat of the heating medium and the heating portion; and energization controlling means (40) for turning energization of the heater on/off depending on the temperature detected inside the housing. Energization of the heater is turned off to put the heater in an energization standby state if temperature detected inside the housing is equal to or greater than a first specified threshold (TS1), and is turned off to put the heater in an energization complete stop state if the temperature detected inside the housing in the energization standby state is equal to or greater than a second specified threshold (TS2).

主权项

1. A heating device comprising:
a heater having a heating portion which generates heat by energization; a housing which contains the heating portion and forms a passage for a heating medium between the housing and the heating portion; a temperature detection means detecting in the passage, temperature inside the housing due to heat of the heating medium and the heating portion; and an energization controlling means for turning on and off the energization of the heater depending on the temperature inside the housing detected by the temperature detection means, wherein the energization controlling means turns off energization of the heater to put the heater in an energization standby state if temperature inside the housing detected by the temperature detection means is equal to or greater than a first specified threshold, and the energization controlling means continuously turns off energization of the heater to put the heater in an energization complete stop state if the temperature inside the housing detected in the energization standby state is equal to or greater than to a second specified threshold.