JPS6236034Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a type of bathtub in which a thermoelectric generator is installed in the bathtub body so that the thermal energy of a burner installed in the bathtub can be used to drive a gas solenoid valve and other electrical parts. This invention relates to a thermoelectric generating element in a pot. recent years,
As a thermoelectric power generation element, a special P-type semiconductor and an N-type semiconductor are joined at their tips to form a heating section, and a thermoelectromotive force is generated from a sink section at the tail end according to the temperature difference between the heating section and the sink section. A device has been developed that allows it to be taken out.

This thermoelectric power generating element has a superelectric capacity more than 10 times that of conventionally used thermocouples, and is also durable and
It also has the advantage of being excellent in heat resistance, but due to its small size, when heating the heating part at the tip of the element facing the burner, heat also reaches the sink part at the tail end, causing the sink part to heat up. The temperature rises, and the temperature difference with the heating part is reduced, resulting in the inconvenience that the thermoelectromotive force cannot be obtained as designed.

The purpose of the present invention is to provide a device that eliminates such inconveniences.
In addition, a thermoelectric generating element 2 having a heating part 2a at the tip and a sink part 2b at the tail end and generating an electromotive force according to the temperature difference between these two parts 2a and 2b is attached to the bathtub body 1.
In the case where the heating part 2a is arranged so as to face the burner 3 installed in the sink part 2b, a heat pipe 4 having an evaporation side end 4a bound to the sink part 2b is provided, and the condensation side end of the heat pipe 4 is connected to the sink part 2b. 4b to the bath pot body 1
The heat exchanger 5 is inserted into the inflow side of the heat exchanger 5 installed in the heat exchanger 5.

The thermoelectric generating elements 2 are prepared as a unit in which a plurality of them are attached to a common unit base 6 in each sink part 2b, and the evaporation side end 4a of the heat pipe 4 is bonded to the base 6. And so.

The heat exchanger 5 has an inlet 5a at the lower side of the side,
A pair of water pipes 7, 7 each connected to the upper outlet 5b.
The condensing end 4b of the heat pipe 4 is inserted into the inlet 5a or the lower water pipe 7 connected thereto.

Note that the heat pipe 4 used is one in which fluorocarbon is sealed inside.

Next, to explain its operation, according to the combustion operation of the burner 3, the heating part 2a at the tip of the thermoelectric generating element 2 facing this is heated, while radiant heat etc. acts on the sink part 2b at the tail end. The temperature of the sink portion 2b also gradually increases with the passage of time, but this temperature increase causes the internal fluid at the evaporation side end 4a of the heat pipe 4 to vaporize, and the vaporized fluid flows into the heat exchanger 5. It is condensed at the condensation side end 4b of the heat pipe 4 which is cooled by the cold water in the lower part of the bathtub 8 flowing to the side, and eventually takes the heat from the sink part 2b as heat of vaporization and condenses on the inflow side of the heat exchanger 5. A heat cycle is generated in which heat is radiated, and the sink part 2b
is effectively cooled, a large temperature difference is formed between the heating part 2a, and a large thermoelectromotive force is generated.

In this way, according to the present invention, the sink part 2b
By providing a heat pipe 4 with an evaporation side end 4a connected to the bathtub body 1, and inserting a condensation side end 4b of the heat pipe 4 into the inflow side of a heat exchanger 5 installed in the bathtub body 1, It is possible to easily and effectively cool the sink part of the thermoelectric power generating element installed in a place under special conditions such as inside the bathtub body, prevent the temperature rise of the sink part 2b, and obtain a large thermoelectromotive force. be.

[Brief explanation of the drawing]

Figure 1 is a cutaway side view of one example of the proposed device;
The figure is a plan view taken along the line -- in FIG. 1, and FIG. 3 is an enlarged side view taken along the line of FIG. 3. 1... Bath pot body, 2... Thermoelectric power generation element, 2a...
...Heating part, 2b...Sink part, 3...Burner, 4
...Heat pipe, 4a... Evaporation side end, 4b...
... Condensing side end, 5... Heat exchanger.

Claims (1)

[Scope of utility model registration request] The bathtub body 1 is equipped with a thermoelectric generating element 2 which includes a heating part 2a at the tip and a sink part 2b at the tail end and generates an electromotive force according to the temperature difference between these two parts 2a and 2b.
The heating part 2 is attached to the burner 3 installed inside the bathtub body 1.
In the case where the heat pipe 4 is disposed facing the sink part 2b, the evaporation side end 4a is connected to the sink part 2b.
A thermoelectric power generation element device for a bathtub, which is provided with a condensing side end 4b of the heat pipe 4 and inserted into the inflow side of a heat exchanger 5 installed in the bathtub body 1.