| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water-and-hot water mixing device which includes a thermo-valve electrically controlled by a driving source such as a motor, performs feedback control of a discharge water temperature, shortens the time needed to correct a discharge water temperature, and prevents the discharge water temperature from hunting. <P>SOLUTION: The water-and-hot-water mixing device 1 includes a mixing valve unit 30 having a temperature-sensitive member which drives a valve member by applying an energizing force in association with a temperature change in mixed water of hot water and water, an operation part 6 which sets a set temperature, a hot water thermistor 22 which detects a temperature of mixed water, and a controller 50 which controls the mixing valve unit 30. The controller 50 has a temperature correcting section 51 which calculates a correction amount for a control signal so as to reduce a difference between the set temperature and a detected temperature by the hot water thermistor 22, a correction amount adjusting section 52 which adjusts the correction amount by multiplying the correction amount by a predetermined coefficient corresponding to the calculation frequency of the correction amount per calculation of the correction amount. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
