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Temperature sensor for heater
2015-12-25



a laminated sheet heater including:
a first insulating resin film;
a second insulating resin film; 

A heater element made of metal foil in one of a strip-shaped predetermined pattern and a sheet shape, the heater element being placed between the first insulating resin film and the second insulating resin film, and a first metal sheet laminated on a surface of the first insulating resin film opposite the heater element and a second metal sheet laminated on a surface of the second insulating resin film opposite the heater element, the first metal sheet having a planar outer surface that is opposed to a surface laminated on the surface of the first insulating resin film; and a temperature detecting device including a temperature measuring portion that includes a thermistor, the temperature detecting device having a through hole in a fastened portion that does not include the temperature measuring portion, wherein the laminated sheet heater includes a heater metallic section in which, of the first insulating resin film, the second insulating resin film, the heater element, the first metal sheet, and the second metal sheet, any one of only the first metal sheet and only a combination of the first metal sheet and the second metal sheet is arranged in a lamination layering direction of the laminated sheet heater, and the temperature detecting device is fastened to the planer outer surface of the first metal sheet at the heater metallic section of the laminated sheet heater with mechanical fastening means so that the temperature detecting device is fixed to the planar outer surface of the first metal sheet with at least the temperature measuring portion of the temperature detecting device held in contact with the planer outer surface of the first metal sheet, wherein the mechanical fastening means is a metal fixing member for fastening the temperature detecting device to the heater metallic section, and the temperature detecting device is placed on a surface of a first metal sheet so that an axis of a through hole of the heater metallic section coincides with an axis of a through hole of the temperature detecting device, and the metal fixing member is inserted through the two through holes to fasten the temperature detecting device and the heather metallic section.

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