| 摘要 |
PROBLEM TO BE SOLVED: To execute temperature control of a plurality of heating ranges with a small-sized and cheap controller.SOLUTION: An electric warmer includes: a body 110 including a plurality of heating ranges; a plurality of heating means 122a installed in each heating range; temperature detection means 122b for detecting the temperature of each heating range; a control unit 230 for controlling the heating means 122a based on temperature detection information of the temperature detection means 122b; surface switching means 213 for selectively switching the heating ranges; temperature setting means 211 for setting main preset temperature in the heating ranges; storage means 231 incorporated in the control unit 230 and for storing a temperature difference with sub preset temperature different from the main preset temperature; and temperature selecting means 212 for selecting one of the main preset temperature and the sub preset temperature as the preset temperature used for the control of the heating ranges. Thus, by one temperature setting means and one temperature selecting means, it becomes possible to set a plurality of heating ranges at different temperatures, and a small-sized controller can be provided at low cost. |
