Hot water reservoir type hot water supplier
专利汇可以提供Hot water reservoir type hot water supplier专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent securely with economical construction the heating an empty hot water supplier in which a corrosion proof circuit to be applied with a D.C. voltage is provided between a corrosion proof electrode and an object to be corrosion-proofed by adapting the corrosion proof circuit to serve also as a means for preventing the hot water supplier from being heated in an empty state.
CONSTITUTION: When a predetermined amount of water in a hot water reservoir body, the direct voltage at the both ends of a capacitor C
6 in the corrosion proof circuit 51 is impressed between the reservoir body and the corrosion proof electrode 5 submerged into the water in the reservoir body so that a corrosion proof current flows through the reservoir body. On the other hand, when the reservoir body is empty, no current flows from the corrosion proof electrode 5 to the reservoir body, a light emitting element PhLED does not emit light, and hence a light receiving element PhTr becomes unconductive. Accordingly, a transistor Tr
1 is also unconductive, and therefore, if a reset switch RSW is pushed, no power is supplied to a relay R and a heating means 4 cannot be cstarted, thereby peventing the hot water supplier from being heated in the empty state. In the case where the water in the reservoir is used up during the opration of the heating means 4, the relay R is released to make the relay A to be unconductive, thereby stopping the operation of the heating means 4.
COPYRIGHT: (C)1982,JPO&Japio，下面是Hot water reservoir type hot water supplier专利的具体信息内容。
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