Fluid heating device, and hot water supply device using it

Abstract

A fluid heating device mainly includes: for example, an armored heater having a sheath made of copper and heating a heating element for heating a fluid (such as water); 1 casing member; a flow path for fluid flow formed by the space between the outer surface of the sheathed heater and the inner surface of the first casing member; having an inlet for introducing the fluid into the flow path, by A second case member made of, for example, resin; and a third case member made of, for example, resin, having an outflow port for taking out a heating fluid (for example, warm water) in the flow path. A helical coil made of, for example, copper is provided in the first case member, and the helical coil is wound helically around the outer periphery of the sheath heater within the flow path.

Description

technical field [0001] The present invention relates to a fluid heating device for heating fluid and a cleaning device with the fluid heating device. Background technique [0002] A human body part washing device having a washing water heating device for heating washing water has been used so far (for example, refer to Patent Document 1). [0003] This human body part washing device supplies the washing water heated by the washing water heating means to a part of the human body. Next, the washing water heating device included in the human body part washing device described in Patent Document 1 will be briefly described with reference to the drawings. [0004] Fig. 9 is a schematic diagram showing a washing water heating device included in a conventional human body part washing device. [0005] As shown in FIG. 9 , the washing water heating device has a tubular casing 103 having an inlet 101 and an outlet 102 . [0006] A sheathed heater 105 is arranged in the tubular hous...

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Problems solved by technology

[0021] On the other hand, in the case where the tubular casing 103 is formed of metal, although the above-mentioned danger is small and the safety is high, since the inlet 101 and the water outlet 102 are formed on the tubular casing 103, it is necessary, for example, to be brazed. or complex tube processing technology, not suitable for mass production

[0022] In the water heater of the human body washing device described in the above-mentioned patent document 2, since each thread 6 of the spiral core 5 is close to the inner surface of the base pipe 1, there is a potential between the thread 6 and the base pipe 1. In poor cases, dissimilar metal contact corrosion or crevice corrosion occurs in base pipe 1

As a result, a hole appears in the contact pipe 1, and washing water may leak from the hole.

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