JPS59121888A - Thermoelectric generating element - Google Patents
Thermoelectric generating elementInfo
- Publication number
- JPS59121888A JPS59121888A JP57227271A JP22727182A JPS59121888A JP S59121888 A JPS59121888 A JP S59121888A JP 57227271 A JP57227271 A JP 57227271A JP 22727182 A JP22727182 A JP 22727182A JP S59121888 A JPS59121888 A JP S59121888A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- unit
- sectional area
- low temperature
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract 2
- 239000011810 insulating material Substances 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003779 heat-resistant material Substances 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000005678 Seebeck effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
Landscapes
- Control Of Combustion (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、熱発電素子に係り特に熱電素子から発生する
電力をできるだけ太きくするようにした素子の一形状を
提供することにある。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a thermoelectric element, and in particular, to provide a shape of the element that increases the electric power generated from the thermoelectric element as much as possible.
石油ショック以後各方面において省エネルギーがさけば
れてきてお９それは家電機器においても例外ではない。Since the oil crisis, energy conservation has been sought in all fields9, and home appliances are no exception.
燃焼暖房機についてみれば熱効率の向上や、ダイレクト
着火方式及びきめの細い燃焼量調節方法に力が注がれ省
エネ効果が高められてきた。更に最近では、熱発電素子
を応用し、ファンヒーターなどの対流用送風機の駆動電
源とする試みがなされており一部ではいわゆるコードレ
スファンヒーターが開発されている。これは半導体のゼ
ーベック効果を利用して熱エネルギーを直接電気エネル
ギーに変換する固体素子を複数使用し、それらの高温接
点部を炎などの高温部近傍に設置するとともに低温部を
適当な方法で冷却し、その温度差に応じて発生する起電
力を得て、対流送風機を駆動するものである。この方式
は、炎などにより高温が得られれば簡単に起電力が得ら
れるので対流用送風機の電源が不要であり、極めて省エ
ネ効果が高いものである。しかし、熱発電素子は内部抵
抗を有し、しかも内部抵抗の温度に対する係数は負であ
る。−力発生する起電力は高温接点部と低温部の温度差
に比例するという特徴をもっており、従ってこの熱発電
素子から効果的に電力を取り出すためには素子の平均温
度をできるだけ高く保ち、しかも高温接点部と低温部と
の温度差を太きくしなければならがいという相反した内
容の問題を含んでいる。Regarding combustion heaters, efforts have been focused on improving thermal efficiency, direct ignition systems, and finely tuned combustion rate control methods to increase energy-saving effects. Furthermore, recently, attempts have been made to apply thermoelectric power generation elements to drive power sources for convection blowers such as fan heaters, and in some cases, so-called cordless fan heaters have been developed. This uses multiple solid-state elements that convert thermal energy directly into electrical energy using the Seebeck effect of semiconductors, and their high-temperature contacts are placed near high-temperature areas such as flames, while the low-temperature areas are cooled using an appropriate method. Then, the electromotive force generated according to the temperature difference is obtained to drive the convection blower. This method does not require a power source for a convection blower because an electromotive force can be easily obtained if a high temperature is obtained by a flame, etc., and is extremely effective in saving energy. However, thermoelectric generating elements have internal resistance, and the coefficient of internal resistance with respect to temperature is negative. -The electromotive force generated is proportional to the temperature difference between the high-temperature contact part and the low-temperature part. Therefore, in order to extract power effectively from this thermoelectric power generation element, the average temperature of the element must be kept as high as possible, and the high temperature This involves contradictory issues such as the need to widen the temperature difference between the contact portion and the low temperature portion.
本発明は、熱雷素子を効果的に応用する場合の上記のよ
うな問題にかんがみなされたもので、できるだけ熱発電
素子の温度を高く保つようにしてしかも高温接点部と低
温部との温度差を大きくできる構造を提供しようとする
ものである。The present invention was conceived in consideration of the above-mentioned problems when effectively applying a thermoelectric element, and is designed to maintain the temperature of the thermoelectric element as high as possible, and to reduce the temperature difference between the high-temperature contact part and the low-temperature part. The aim is to provide a structure that can increase the size of .
その基本的構成は、熱発電素子の低温部近傍の断面積を
それより高温接点側部分の断面積に比較して小さくする
とともに、断面積縮少部分の周囲を耐熱性絶縁物で固定
することより成る。The basic structure is to make the cross-sectional area near the low-temperature part of the thermoelectric generating element smaller than that of the high-temperature contact side, and to fix the area around the reduced cross-sectional area with a heat-resistant insulator. Consists of.
以上のような構成にすることによシ断面積縮少部分よシ
高温接点側を加熱して高温に保った場合でも断面積縮少
部分の熱抵抗が太きいため高温接点部と低温部との温度
差が大きくとれ、しかも内部抵抗を小さくできる効果が
生じる。With the above configuration, even if the high-temperature contact side is heated and kept at a high temperature than the reduced cross-sectional area part, the thermal resistance of the reduced cross-sectional area part is large, so the high-temperature contact part and the low-temperature part are This has the effect of allowing a large temperature difference and reducing internal resistance.
次に本発明を実施例に基づき具体的に説明する。 Next, the present invention will be specifically explained based on examples.
図は、本発明の一実施例である。図において１は熱発電
素子本体であり、２はその高温接点部１．３は低温部で
ある。４は低温部３の近傍に設けた断面積縮少部であり
、５は低温部３に密接して設けた電極である。この奄給
５にはり一ド絹６が接続きれている。７は断面積縮少部
４を囲み設けられたセメントであり、その外周はアルミ
板８など熱良導体で固定きれている。９はアルミ板８に
接続ばれた冷却板でその上面には複数の放熱フィン１０
が対流空気通路１５中に配置するよう設けられている。The figure shows one embodiment of the invention. In the figure, 1 is the main body of the thermoelectric generating element, and 2 is the high temperature contact portion 1.3 of the thermoelectric element body. Reference numeral 4 denotes a reduced cross-sectional area section provided near the low temperature section 3, and 5 indicates an electrode provided in close proximity to the low temperature section 3. A threaded silk 6 is not connected to this spring 5. Cement 7 is provided surrounding the reduced cross-sectional area portion 4, and its outer periphery is fixed with a good thermal conductor such as an aluminum plate 8. Reference numeral 9 denotes a cooling plate connected to the aluminum plate 8, and a plurality of heat radiation fins 10 are provided on the upper surface of the cooling plate.
is arranged in the convective air passage 15.
１１はバーナーであり、】２は裏面の過熱を防止するた
めの遮熱板、１３は対流空気用送風機である。11 is a burner, ] 2 is a heat shield plate for preventing overheating of the back surface, and 13 is a blower for convection air.
１４は１２の遮熱板とで空気通路を形成する裏面板であ
る。Reference numeral 14 denotes a back plate that forms an air passage with the heat shield plate 12.
次に本発明の詳細な説明する。バーナー１１上に火炎１
６が形成されると熱発電５素子１の高温接点部２の温度
が上昇し、低温部３との間に温度差を生じる。従ってふ
たつのリード線６間にはその温度差に比例した電圧が発
生し、対流用送風機］３が徐々に駆動され対流空気通路
１５内に低温の空気が送じれる。そのため、熱発電素子
１の低温部３はフィン１０により更に冷却される。一方
高温接点部２から熱が低温部３に向って流れ低温部３の
温度を高めようとするが、断面積を縮少した部分４の熱
抵抗が大きいため低温部３の温度はあ廿り上昇せず高温
接点部２との温度差は大きく保たれて発生□ する電
圧も大きい値に保たれる。尚断面積を縮少した部分は、
機械的に強度が弱くなる恐れがあるが本発明ではこの部
分をセメント等の耐熱材料で固定するため強度的に低下
することはなく、シかもセメント等は熱発電素子１の材
質に比し、熱伝導率が小きいため低温部３の温度を高め
る効果は小さい。Next, the present invention will be explained in detail. Flame 1 on burner 11
6 is formed, the temperature of the high temperature contact portion 2 of the thermoelectric power generation 5 element 1 rises, creating a temperature difference between it and the low temperature portion 3. Therefore, a voltage proportional to the temperature difference is generated between the two lead wires 6, and the convection blower 3 is gradually driven to send low-temperature air into the convection air passage 15. Therefore, the low temperature portion 3 of the thermoelectric generating element 1 is further cooled by the fins 10. On the other hand, heat flows from the high-temperature contact part 2 toward the low-temperature part 3 and attempts to raise the temperature of the low-temperature part 3, but the temperature of the low-temperature part 3 remains around because the thermal resistance of the part 4 whose cross-sectional area is reduced is large. The temperature difference with the high temperature contact portion 2 is kept large without rising, and the generated voltage is also kept at a large value. The part whose cross-sectional area has been reduced is
There is a risk that the mechanical strength will be weakened, but in the present invention, this part is fixed with a heat-resistant material such as cement, so there is no decrease in strength. Since the thermal conductivity is low, the effect of increasing the temperature of the low temperature section 3 is small.
また低温部３の近傍の熱抵抗が太きいため高温接点部２
側の大部分を加熱して平均温＃を為くシ、内部抵抗を低
下でせながら、高、低温部の温度差を比較的大きく保つ
ことも可能でを）る。In addition, since the thermal resistance near the low temperature part 3 is large, the high temperature contact part 2
By heating most of the sides to raise the average temperature, it is possible to maintain a relatively large temperature difference between the high and low temperature parts while lowering the internal resistance.
以上説明したように本発明によれば、熱発電素子の低温
部近傍に断面積を小ζくするなどして熱抵抗の犬なる部
分を設けることにより、素子の平均温度を高め内部抵抗
を低下させながら高、低温部の温度差を大きくとること
ができ、取出し電力を大とすることができる。As explained above, according to the present invention, the average temperature of the element is increased and the internal resistance is lowered by providing a portion of thermal resistance near the low-temperature portion of the thermoelectric generating element by reducing the cross-sectional area ζ. It is possible to increase the temperature difference between the high and low temperature parts while increasing the temperature, and it is possible to increase the output power.
１・・・熱発電素子、２・・・高温接点部、３・・・低
温部、４・・・断面積縮少部、５・・・電極、７・・・
セメント、８・・アルミ板、９・・・冷却板、１１・・
・バーナー、１２・・・遮熱板、１３・・・対流空気用
送風機。DESCRIPTION OF SYMBOLS 1... Thermoelectric power generation element, 2... High temperature contact part, 3... Low temperature part, 4... Cross-sectional area reduction part, 5... Electrode, 7...
Cement, 8... Aluminum plate, 9... Cooling plate, 11...
- Burner, 12... Heat shield plate, 13... Convection air blower.
Claims (1)
の断面積をそれより高温端側の断面積に比し、小さくし
たことを特徴とする熱発電素子。 ２）断面積の小なる部分を耐熱性絶縁物質で固定したこ
とを特徴とする特許請求の範囲第１項記載の熱発電素子
。[Scope of Claims] 1) A thermoelectric generating element formed by bonding different materials, characterized in that the cross-sectional area near the low-temperature end is smaller than the cross-sectional area on the higher-temperature end side. 2) The thermoelectric power generating element according to claim 1, wherein the portion having a small cross-sectional area is fixed with a heat-resistant insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57227271A JPS59121888A (en) | 1982-12-28 | 1982-12-28 | Thermoelectric generating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57227271A JPS59121888A (en) | 1982-12-28 | 1982-12-28 | Thermoelectric generating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59121888A true JPS59121888A (en) | 1984-07-14 |
Family
ID=16858201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57227271A Pending JPS59121888A (en) | 1982-12-28 | 1982-12-28 | Thermoelectric generating element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59121888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003134945A (en) * | 2001-11-05 | 2003-05-13 | Matsushita Electric Ind Co Ltd | Green house-heating apparatus |
| DE102008054946A1 (en) | 2008-12-19 | 2010-06-24 | Endress + Hauser Wetzer Gmbh + Co. Kg | Protective housing device for receiving e.g. field device, of process automation unit, has thermal blocking filter provided with thermally absorbent and/or thermally insulating functional material |
-
1982
- 1982-12-28 JP JP57227271A patent/JPS59121888A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003134945A (en) * | 2001-11-05 | 2003-05-13 | Matsushita Electric Ind Co Ltd | Green house-heating apparatus |
| DE102008054946A1 (en) | 2008-12-19 | 2010-06-24 | Endress + Hauser Wetzer Gmbh + Co. Kg | Protective housing device for receiving e.g. field device, of process automation unit, has thermal blocking filter provided with thermally absorbent and/or thermally insulating functional material |
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