JPH04192572A - Mounting structure of thermoelectric element - Google Patents

Abstract

PURPOSE:To make a burning nozzle part for a burning appliance small-sized and to prevent a thermoelectromotive force from being lowered by a method wherein one end part of a thermoelectric element is housed inside a fuel container for the burning appliance and the other end is arranged so as to come into contact with the tip part of a flame. CONSTITUTION:One end part 15A of a thermocouple 15 protrudes by a prescribed height from the protrusion part 14B of a wick 14; it is situated inside the tip part of a flame F at the ignition. The other end part 15B of the thermocouple 15 is buried in the wick 14 and immersed in an alcohol 12; it is cooled by the alcohol 12 and always kept at a low temperature. As a result, when the flame F of an alcohol lamp 11 is used as a heat source, a large thermoelectromotive force can be obtained by a temperature difference caused between the other end part 15B and one end part 15A. When the thermocouple 15 is mounted, no special space is required, and the space around the burning part 14B for the wick 14 of the alcohol lamp 11 can be saved. Thereby, the space of the burning part can be saved, a small size can be realized and the thermoelectromotive force can be increased.

Description

Detailed Description of the Invention <Industrial Application Field> The present invention relates to a thermoelectric element, such as a thermoelectric element, which performs thermoelectric conversion using a flame ejected from a combustion part such as a nozzle of a combustion appliance such as a gas burner, an oil burner, or an alcohol lamp as a heat source. Between the pair of mounting structures.

<Prior Art> Conventionally, when heating a thermoelectric element with a combustion appliance, for example, as shown in FIG.
Or, one end 33 of the thermoelectric element 33 may be
I was trying to insert and place A. In this case, a pair of electrodes 34A disposed on the other end 33B of the thermoelectric element 33,
34B is connected to a measuring meter. Therefore, flame 3
When the one end portion 33A is heated by the heating element 2, a temperature difference is generated between the one end portion 33A and the other end portion 33B, and a thermoelectromotive force is generated.

<Problems to be Solved by the Invention> However, such a conventional thermoelectric element mounting structure requires a space for installing the thermoelectric element separately from the combustion appliance, and is not suitable for downsizing the combustion appliance. There was a problem.

In addition, the radiant heat of the flame causes the low temperature end 3 of the thermoelectric element 33 to
There was also a problem that 3B was easily heated and the thermoelectromotive force decreased.

Therefore, an object of the present invention is to reduce the size of a combustion nozzle portion of a combustion appliance and to provide a mounting structure for a thermoelectric element that does not reduce thermoelectromotive force.

<Point of focus for solving the problem> Therefore, the inventor discovered that by arranging the thermoelectric element parallel to the direction of flame ejection (the direction in which the nozzle extends), the space of the nozzle part of the combustion appliance can be saved. devised that it is possible to achieve this.

It was also recalled that by placing the low-temperature end of the thermoelectric element in contact with the fuel before combustion, it is possible to make it less susceptible to flame radiation and to enhance its cooling effect.

<Means for Solving the Problems> The present invention provides a mounting structure for a thermoelectric element that performs thermoelectric conversion using the flame of a combustion section of a combustion appliance as a heat source, in which one end of the thermoelectric element is accommodated in a fuel container of the combustion appliance. In addition, this is a mounting structure for a thermoelectric element in which the other end is arranged so as to be in contact with the tip of the flame.

<Function> In the thermoelectric element mounting structure according to the present invention, one end of the thermoelectric element is housed in the fuel container of the combustion appliance.
It is always maintained at a constant low temperature. Therefore, a large temperature difference occurs between this one end and the other end of the thermoelectric element, which becomes hot in contact with the tip of the flame. As a result, the thermoelectromotive force generated between both ends can be further increased.

Furthermore, since one end of the thermoelectric element is disposed in the fuel container, the thermoelectric element body extends along the flame ejection direction. As a result, the combustion part of the combustion appliance (for example, the nozzle of a gas burner) can be downsized.

<Example> Hereinafter, an example of a mounting structure for a thermoelectric element according to the present invention will be described with reference to the drawings.

FIG. 1 is a diagram for explaining a mounting structure for a thermoelectric element according to an embodiment of the present invention.

In this figure, reference numeral 11 is an alcohol lamp as an example of a combustion device. ,have. The wick 14 has one end 14A immersed in alcohol 12 inside the main container 13, and the other end (combustion section) 14B protruding from the injection port 13A of the main container 13 to the outside.

Here, the thermocouple (thermoelectric element) 15 has this other end 14A.
is inserted and attached inside the protruding core 14. The thermocouple 15 is made of, for example, n-type FeSi2 and p-type Fe5ia.
It is constructed by pasting together both ends of two plates, and is inserted into the shaft of the core 14 in the form of a rod. One end 15A of this thermocouple 15 is a protrusion (other end) of the core 14.
It protrudes from 14B by a predetermined height. Therefore, one end 15A of this thermocouple 15 will be located within the tip of the flame F when ignited. Further, the other end 15B of the thermocouple 15 is embedded in the core 14 and immersed in the alcohol 12. The other end 15B is cooled by the alcohol 12 and is always kept at a low temperature.

Note that 16A and 16B are thermocouples on both sides (n-type FeS
i2 and n-type FeSi2), respectively. Further, 17 is a lid of the main container 13.

Since the thermocouple 15 is attached to the alcohol lamp 11 in this way, the alcohol lamp 110 flame F
A large thermoelectromotive force can be obtained by using the temperature difference between the other end 15B and the one end 15A as a heat source.

Further, when installing the thermocouple 15, no special space is required, and the combustion part 14 of the wick 14 of the alcohol lamp 11
It is possible to save space around B.

FIG. 2 shows another embodiment of the invention.

In this embodiment, a thermocouple 15 is attached in parallel to the side of the wick 14 of the alcohol lamp 11. Even in this case, the space of the combustion part can be saved as in the above embodiment, and a larger thermoelectromotive force can be generated due to the large temperature difference between the high temperature part and the low temperature part. The other configurations are the same as those of the above embodiment.

Note that a plurality of thermocouples may be provided.

The same applies to gases and waxes other than alcohol as the fuel. For example, application to gas burners, oil burners, etc. is also conceivable.

<Effects> As described above, firstly, in the present invention, by arranging the thermoelectric element in close proximity to the combustion section, it is possible to save space and downsize the combustion section. Second, by holding the cold end of the thermoelectric element in contact with the fuel, a cooling effect is produced, and the generated electromotive force can accordingly be increased.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a thermoelectric element mounting structure according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a thermoelectric element mounting structure according to another embodiment of the present invention, and FIG. FIG. 2 is a front view showing a conventional combustion temperature measurement method using a thermoelectric element. 11... Alcohol lamp, 12...
...Alcohol (fuel), 13...
・・Main body container, 14・・φφ・・φφφ core, 14B・・Protruding end of the core (combustion part), 15
......Thermocouple, 15A...One end of thermocouple, 15B...
・・・・・・Other end of thermocouple, F・・・・・・Flame. Patent Applicant Mitsubishi Metals Co., Ltd. Agent Patent Attorney Kiyoshi Kuwai (1 other person) No. 1, No. 2, No. 2, No. 3

Claims (1)

[Scope of Claims] In a mounting structure for a thermoelectric element that performs thermoelectric conversion using the flame of a combustion section of a combustion appliance as a heat source, one end of the thermoelectric element is accommodated in a fuel container of the combustion appliance, and the other end is housed in a fuel container of the combustion appliance. A mounting structure for a thermoelectric element, characterized in that the thermoelectric element is arranged so as to be in contact with the tip of the flame.