| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electric Kotatsu (fireplace with a coverlet) that can shorten the wiring as much as possible and allows a human body sensor to exhibit the original function adequately. <P>SOLUTION: The electric Kotatsu includes: a controller 10 on hand comprising an operation switch 19 to which an attachment plug 15 to be connected to a commercial power supply in order to supply a power supply to an electric heater is connected via a connection code 14 and a reference resistance circuit 17 which outputs a reference resistance for controlling a power supply amount to the electric heater; and a plug 11 for instrument which is connected to the controller 10 on hand via a connection code 16 and is connected detachably to an instrument plug receptor 12 fixed to a body frame 2, wherein the human body sensor 25 which stops the electricity conduction to the electric heater when the user's absence state is detected for a prescribed time in a warming space S while the operation switch 19 is closed is disposed in the plug 11 for instrument. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
