Bath boiling control device
专利汇可以提供Bath boiling control device专利检索，专利查询，专利分析的服务。并且PURPOSE: To simplify the on-site installation works by disposing in the steam passage a pyroelectric element bonded to a metallic casing which is exposed to the heat of steam from hot water in the bath tube, and using the pyroelectric element as a piezoelectric vibrator.
CONSTITUTION: As the water in the bath tub 9 is heated, steam 8 is generated to cause thermoelectricity to be given to a pyroelectric element 4, and the voltage level of the signal which is smoothed when it has gone through a low pass filter 14 of 10Hz band increases. Meanwhile, when the level of the setting means 16 is changed, the inversion time of the comparator 17 is changed so that the bath may be boiled at the temperature set by the user. The switching means 23 is positioned on the A contact point side until steam is detected, and the control command means 1 transmits the signal caused by the pyroelectric effect of the pyroelectric element 4 to the processing circuit 18. When the inversion signal from the comparator 17 is inputted to a drive means 21, the drive means 21 switches the switching means 23 to the B contact point side to drive the signal generating means 20. The pyroelectric element 4 then acts as a signal transmitting means, whose signal is received wireless by a signal receiving means 27 to control the heating means 24.
COPYRIGHT: (C)1990,JPO&Japio，下面是Bath boiling control device专利的具体信息内容。
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6 热电元件
