JPH0485973A - Thermoelectric generator - Google Patents
Thermoelectric generatorInfo
- Publication number
- JPH0485973A JPH0485973A JP2201858A JP20185890A JPH0485973A JP H0485973 A JPH0485973 A JP H0485973A JP 2201858 A JP2201858 A JP 2201858A JP 20185890 A JP20185890 A JP 20185890A JP H0485973 A JPH0485973 A JP H0485973A
- Authority
- JP
- Japan
- Prior art keywords
- thermoelectric
- combustion chamber
- cylindrical body
- chamber
- temperature side
- 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
- 238000002485 combustion reaction Methods 0.000 claims abstract description 41
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 16
- 239000000956 alloy Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 238000010248 power generation Methods 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 11
- 239000004065 semiconductor Substances 0.000 abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001273 butane Substances 0.000 abstract description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 241001122767 Theaceae Species 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- LTPBRCUWZOMYOC-UHFFFAOYSA-N Beryllium oxide Chemical compound O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- BVWCRASTPPDAAK-UHFFFAOYSA-N [Mo].[W].[Cu] Chemical compound [Mo].[W].[Cu] BVWCRASTPPDAAK-UHFFFAOYSA-N 0.000 description 1
- KBXVWSWUMNCDAJ-UHFFFAOYSA-N [Ni].[W].[Cu].[Ni].[W] Chemical compound [Ni].[W].[Cu].[Ni].[W] KBXVWSWUMNCDAJ-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、熱電発電装置に係り、特に起電力の大きな熱
電発電装置の実装構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a thermoelectric generator, and particularly to a mounting structure for a thermoelectric generator with a large electromotive force.
Ｐ型半導体とＮ型半導体とを、金属を介して接合してＰ
Ｎ素子対を形成し、この両端に温度差を与え、これによ
って両端に生起せしめられるいわゆる熱起電力を利用し
、発電を行う熱電発電装置は、非常用発電装置、僻地用
発電装置、携帯用発電装置として注目されている。A P-type semiconductor and an N-type semiconductor are bonded via metal to form a P-type semiconductor.
Thermoelectric power generators that generate electricity by forming N element pairs and applying a temperature difference between the two ends of the two ends of the so-called thermoelectromotive force generated at both ends can be used as emergency power generators, power generators for remote areas, and portable power generators. It is attracting attention as a power generation device.
従来、熱電発電装置は第４図に一例を示すように、燃焼
室１とこの燃焼室の外壁の相対向する位置にグリースを
用いて圧着せしめられた２つの熱電発電部１０とから構
成されている。２０は熱電発電部１０の低温部を冷却す
るための冷却用ファンである。Conventionally, a thermoelectric power generation device is composed of a combustion chamber 1 and two thermoelectric power generation sections 10 that are crimped with grease at opposing positions on the outer wall of this combustion chamber, as shown in an example in FIG. There is. 20 is a cooling fan for cooling the low temperature part of the thermoelectric power generating section 10.
この熱電発電装置では、高温部と低温部との温度差が１
２０〜１５０℃にも達するもので、熱応力による熱電半
導体の破損を防止するため、熱電発電部は燃焼室の外壁
にグリースＧを介して圧着されている。In this thermoelectric generator, the temperature difference between the high temperature part and the low temperature part is 1
The temperature reaches 20 to 150°C, and the thermoelectric generator is crimped to the outer wall of the combustion chamber via grease G to prevent damage to the thermoelectric semiconductor due to thermal stress.
しかしながら、この装置では燃焼室の壁面の温度と熱電
発電部の高温側接合部（電極と熱電半導体との接合部）
の温度との温度差か大きく、熱効率か悪いという問題か
あった。However, in this device, the temperature of the wall surface of the combustion chamber and the high-temperature side junction of the thermoelectric generation section (junction between the electrode and the thermoelectric semiconductor) are
There was a problem of poor thermal efficiency due to the large temperature difference.
また、長時間使用しているうちに、グリースが蒸発し、
熱抵抗が増大して温度差がさらに大きくなり、−層熱効
率が低下するという問題があった。Also, while using it for a long time, the grease may evaporate.
There was a problem in that the thermal resistance increased, the temperature difference further increased, and the -layer thermal efficiency decreased.
またこの熱電発電部は、第５図に拡大図を示すように、
例えばアルミナセラミックス基板等の熱伝導性の良好な
絶縁性基板からなる第１および第２の熱交換基板１１．
１２間にこれに対して良好な熱接触性をもつように多数
個のＰＮ素子対１３か挾持せしめられると共に、各素子
対１３間を夫々第１および第２の電極１４．１５によっ
て直列接続せしめられて構成されている。In addition, this thermoelectric power generation section, as shown in an enlarged view in Fig. 5,
First and second heat exchange substrates 11 made of insulating substrates with good thermal conductivity, such as alumina ceramic substrates, for example.
A large number of PN element pairs 13 are sandwiched between the elements 12 and 12 so as to have good thermal contact with each other, and each element pair 13 is connected in series by first and second electrodes 14 and 15, respectively. It is constructed according to the following.
そして、この第１および第２の電極１４，１．５は大電
流にも耐え得るように通常銅板からなり、熱交換基板１
１．．１２表面に形成された導電体層パターン上に半田
等の溶着層を介して固着されている。The first and second electrodes 14, 1.5 are usually made of copper plates so as to withstand large currents, and the heat exchanger substrate 1.
1. ．． It is fixed onto the conductor layer pattern formed on the surface of 12 via a welding layer such as solder.
更にこの第１および第２の電極上には、半田層を介して
Ｐ型熱電素子１３ａ又はＮ型熱電素子１３ｂが交互に夫
々１対ずつ固着せしめられ、ＰＮ素子対１３を構成する
と共に各素子対間は直列接続されている。Furthermore, pairs of P-type thermoelectric elements 13a or N-type thermoelectric elements 13b are alternately fixed on the first and second electrodes via solder layers, forming a PN element pair 13 and each element The pairs are connected in series.
ところで、熱交換効率の増大をはかるには、熱交換基板
を良好な熱伝導性を有する絶縁性の材料で構成する必要
があり、また熱歪による劣化を防止するため、熱膨張率
が小さいものでなければならない。By the way, in order to increase the heat exchange efficiency, the heat exchange board must be made of an insulating material with good thermal conductivity, and in order to prevent deterioration due to thermal distortion, it must be made of a material with a small coefficient of thermal expansion. Must.
しかしながら、熱交換基板材料として、従来から用いら
れているアルミナセラミックス基板やベリリアセラミッ
クス基板は、線膨脹係数が７×１０−６／にと大きく、
これに線膨脹係数が１６．５ＸＩＯ−６／にの銅電極を
形成しているため、熱応力により、熱電半導体が破損し
たりするという問題があった。However, alumina ceramic substrates and beryllia ceramic substrates, which have been conventionally used as heat exchange substrate materials, have a large coefficient of linear expansion of 7 × 10-6/.
Since a copper electrode having a linear expansion coefficient of 16.5XIO-6/ is formed thereon, there is a problem that the thermoelectric semiconductor may be damaged due to thermal stress.
そこで応力を緩和するため、基板を分割構造としたり、
基板を用いることなく電極のみて構成するスケルトン構
造としたりするという方法がとられているか、構造か複
雑となるという問題があった。Therefore, in order to alleviate stress, the board has a divided structure,
The problem is that a skeleton structure consisting only of electrodes without using a substrate has been adopted, or that the structure is complicated.
また、分割構造とした場合、熱の伝達効率が悪く熱交換
効率を高めることかできない上、強度的にも問題があっ
た。Furthermore, when using a split structure, the heat transfer efficiency is poor, and the heat exchange efficiency cannot be improved, and there are also problems in terms of strength.
（発明か解決しようとする課題）
このように従来の熱電発電装置では熱効率が良好でない
ため、燃焼室の発熱量に対する熱起電力の割合すなわち
熱電効率か十分に得られないという問題があった。(Problems to be Solved by the Invention) As described above, conventional thermoelectric power generation devices do not have good thermal efficiency, so there is a problem that the ratio of thermoelectromotive force to the calorific value of the combustion chamber, that is, the thermoelectric efficiency cannot be sufficiently obtained.
また従来の装置の基板材料及び電極は熱膨張係数が大き
いものが用いられているため、低温側と高温側の差が大
きくなるに従い、熱雷半導体が破損したり、脱落したり
するという問題があった。In addition, since the substrate materials and electrodes of conventional devices are made of materials with a large coefficient of thermal expansion, as the difference between the low temperature side and the high temperature side increases, there is a problem that the thermal lightning semiconductor may be damaged or fall off. there were.
本発明は前記実情に鑑みてなされたもので、発電効率が
良好で、信頼性の高い熱電発電装置を提供することを目
的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a thermoelectric power generation device with good power generation efficiency and high reliability.
（課題を解決するだめの手段）
そこで本発明では、熱伝導性の筒状体からなる燃焼室の
外壁に電極を介して熱電半導体の高温側を直接接合せし
め、燃焼室の燃焼熱で高温側を加熱し、起電力を生起せ
しめるようにしている。(Another Means to Solve the Problem) Therefore, in the present invention, the high temperature side of the thermoelectric semiconductor is directly bonded to the outer wall of the combustion chamber made of a thermally conductive cylindrical body via an electrode, and the high temperature side is absorbed by the combustion heat of the combustion chamber. is heated to generate an electromotive force.
望ましくはこの筒状体を、線膨張係数４×１０ｔ、／℃
以下の材料で構成するようにしている。Preferably, this cylindrical body has a linear expansion coefficient of 4 x 10t/°C.
It is made up of the following materials.
さらに、この筒状体は絶縁性材料で構成されており、こ
の筒状体表面にメタライズ層を介して線膨脹係数８ Ｘ
１０−’／ ℃以下、体積抵抗率１０Ωｃｍ以下の材
料からなる電極を形成するようにしている。Furthermore, this cylindrical body is made of an insulating material, and a linear expansion coefficient of 8
The electrode is made of a material having a temperature of 10-'/°C or less and a volume resistivity of 10 Ωcm or less.
また、この筒状体は導電性材料で構成されており、この
筒状体表面に絶縁層およびメタライズ層を介して線膨脹
係数８×１０−６／”Ｃ以下、体積抵抗率１０−６Ωｃ
１１の材料からなる電極を形成するようにしている。The cylindrical body is made of a conductive material, and the surface of the cylindrical body is coated with an insulating layer and a metallized layer to provide a coefficient of linear expansion of 8 x 10-6/"C or less and a volume resistivity of 10-6 Ωc.
The electrodes are made of 11 materials.
さらに望ましくは、この筒状体を石英ガラス、低膨脹ガ
ラス、アンバー合金のうちのいずれかで構成している。More preferably, the cylindrical body is made of quartz glass, low expansion glass, or an amber alloy.
さらにこの電極を、アンバー合金、モリブデン、タング
ステン、タンタルなどの高融点金属あるいはこれらと銅
との合金のうちのいずれかで構成している。Further, this electrode is made of a high melting point metal such as an amber alloy, molybdenum, tungsten, or tantalum, or an alloy of these and copper.
（作用）
上記構成によれば、燃焼室の外壁に直接熱電半導体が接
合されているため、極めて熱交換効率が良好であり、か
つ小型化をはかることができる。(Function) According to the above configuration, since the thermoelectric semiconductor is directly bonded to the outer wall of the combustion chamber, the heat exchange efficiency is extremely good, and the size of the combustion chamber can be reduced.
また、熱交換基板を熱膨張率の小さい材料で構成してい
るため、燃焼室の外壁に直接接合して、低温部と高温部
との温度差が大きい場合にも、破損や脱落が生しること
なく、良好な特性を維持することができる。In addition, since the heat exchange board is made of a material with a low coefficient of thermal expansion, it will not break or fall off even if it is directly bonded to the outer wall of the combustion chamber and there is a large temperature difference between the low temperature part and the high temperature part. It is possible to maintain good characteristics without causing any damage.
また、電極材料として熱交換基板と線膨張係数の差が小
さい材料を用いているため、上下基板の温度差が大きい
場合でも、熱電半導体が熱応力により破損することがな
い。Furthermore, since a material with a small difference in linear expansion coefficient from that of the heat exchange substrate is used as the electrode material, the thermoelectric semiconductor will not be damaged by thermal stress even if the temperature difference between the upper and lower substrates is large.
（実施例）
以下、本発明の実施例について図面を参照しつつ詳細に
説明する。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
実施例１
この熱電発電装置は、第１図に示すように内部に網目状
の触媒保持筒３０を備えた石英ガラス製の筒体からなる
燃焼室］Ｓと、この燃焼室の外壁に、膜厚５μ釘のニッ
ケルメタライス層Ｍを介して膜厚１２０ｔｔ膚のアンバ
ー合金電極４，５を厚膜法で形成し、これに熱電素子３
を固着したものである。そしてこの熱電素子の低温側の
熱交換基板２には放熱用のフィン２０が形成されている
。Example 1 As shown in FIG. 1, this thermoelectric power generation device consists of a combustion chamber made of a cylinder made of quartz glass and equipped with a mesh-shaped catalyst holding cylinder 30 inside, and a membrane on the outer wall of the combustion chamber. Amber alloy electrodes 4 and 5 with a film thickness of 120 tt are formed by a thick film method via a nickel metal rice layer M with a thickness of 5 μm, and a thermoelectric element 3 is attached to this.
is fixed. A heat radiating fin 20 is formed on the heat exchange substrate 2 on the low temperature side of this thermoelectric element.
なお、高温側の熱交換基板は燃焼室１ｓをかねている。Note that the heat exchange board on the high temperature side also serves as the combustion chamber 1s.
この熱電発電装置の燃焼室ｌｓ内にブタンガスを供給す
ることにより、触媒保持筒３ｏ内の触媒を用いて燃焼が
促進され、燃焼室内壁の温度を２２０℃まで上昇せしめ
る一方低温側を放熱フィンおよびファンを用いて冷却し
、両電極間に流れる電流による起電力を取り出すように
したものである。By supplying butane gas into the combustion chamber ls of this thermoelectric power generation device, combustion is promoted using the catalyst in the catalyst holding cylinder 3o, and the temperature of the inner wall of the combustion chamber is raised to 220°C. A fan is used for cooling, and the electromotive force generated by the current flowing between the two electrodes is extracted.
本発明の熱電発電装置によれば、１００００時間経過後
も内部抵抗変化率は小さく維持され、極めて良好な熱電
特性を呈している。According to the thermoelectric power generation device of the present invention, the rate of change in internal resistance is maintained small even after 10,000 hours, and exhibits extremely good thermoelectric characteristics.
また、破損も脱落もなく極めて信頼性の高いものとなっ
ている。なお第４図および第５図に示した従来例の熱電
発電装置ではわずか］０００時間で３個中２個の装置が
破損した。Furthermore, it is extremely reliable with no damage or falling off. In the conventional thermoelectric generators shown in FIGS. 4 and 5, two out of three devices were damaged after only 1,000 hours.
なお、前記実施例１では、基板として石英ガラス、電極
としてアンバー合金を用いたか、これに限定されること
なく、他の材料の組み合わせを用いても良い。他の材料
の組み合わせ例を第１表に示す。In the first embodiment, quartz glass was used for the substrate and amber alloy was used for the electrodes, but the present invention is not limited to these, and other combinations of materials may be used. Examples of combinations of other materials are shown in Table 1.
第１表
基ＩＦ４ｆ１ 石英ガラス 低ＩＩガラス
表面絶縁アンバー合金メタライズ層 タングステ
ン ニッケル ニッケル 銅タングステンＨチ
タン電極材料 アンバ合金 モリブデン
銅タングステン合金実施例２
この熱電発電装置は、第２図に示すように、実施例１の
燃焼室１ｓを９６％石英ガラス（バイコールガラス）で
構成し、この燃焼室の外壁に、スパッタリング法によっ
て形成した膜厚１μｍのタングステン層Ｍを介してアン
バー合金からなる電極チップ２４．２５を９５船（Ｐｂ
）−５錫（Ｓｎ）半田で接合し、これに熱電素子３を同
じく９５鉛（Ｐｂ）−５錫（Ｓｎ）半田で接合し固着し
たものである。Table 1 Group IF4f1 Quartz glass Low II glass Surface insulation amber alloy metallized layer Tungsten Nickel Nickel Copper tungsten H Titanium electrode material Amber alloy Molybdenum
Copper-tungsten alloy Example 2 As shown in Fig. 2, this thermoelectric power generation device consists of the combustion chamber 1s of Example 1 made of 96% quartz glass (Vycor glass), and the outer wall of the combustion chamber is made of 96% quartz glass (Vycor glass). An electrode tip 24.25 made of an amber alloy is inserted through the formed tungsten layer M with a thickness of 1 μm.
)-5 tin (Sn) solder, and the thermoelectric element 3 is also bonded and fixed using 95 lead (Pb)-5 tin (Sn) solder.
他の部分については実施例１と同様であり、熱雷素子の
低温側には放熱用のフィン２０が形成されている。The other parts are the same as in Example 1, and a heat radiation fin 20 is formed on the low temperature side of the thermal lightning element.
そしてこの熱電発電装置の燃焼室ｌｓ内にブタンガスを
供給することにより、触媒保持筒３０内の触媒を用いて
燃焼が促進され、燃焼室内壁の温度を２５０℃まで上昇
せしめる一方低温側を放熱フィンおよびファンを用いて
７０℃程度に冷却し、両電極間に流れる電流による起電
力を取り出すようにしたものである。By supplying butane gas into the combustion chamber ls of this thermoelectric power generation device, combustion is promoted using the catalyst in the catalyst holding cylinder 30, and the temperature of the inner wall of the combustion chamber is raised to 250°C, while the low-temperature side is connected to the heat radiation fin. It is then cooled to about 70° C. using a fan, and the electromotive force generated by the current flowing between both electrodes is extracted.
この場合も、内部抵抗変化率は小さく維持され、極めて
良好な熱電特性を呈しており、また長期にわたる使用に
際しても、破損も脱落もなく極めて信頼性の高いものと
なっている。In this case as well, the rate of change in internal resistance is maintained small, exhibiting extremely good thermoelectric properties, and is extremely reliable with no breakage or falling off even during long-term use.
実施例３
この熱電発電装置は、第３図に示すように、燃焼室３１
を表面を酸化シリコン膜３２て被覆したアンバー合金で
構成し、この燃焼室の外壁に、厚膜法によって形成した
膜厚１２０μｍの銅（Ｃｕ）−タングステンのメタライ
ズ層Ｍを介してアンバー合金からなる電極チップ２４．
２５を９５鉛（Ｐｂ）−５錫（Ｓｎ）半田て接合し、こ
れに熱電素子３を同じく９５鉛（Ｐｂ） −５錫（Ｓｎ
）半田で接合し固着したものである。Embodiment 3 This thermoelectric power generation device has a combustion chamber 31 as shown in FIG.
The combustion chamber is made of an amber alloy whose surface is covered with a silicon oxide film 32, and a copper (Cu)-tungsten metallized layer M with a thickness of 120 μm formed by a thick film method is formed on the outer wall of this combustion chamber. Electrode tip 24.
25 is soldered with 95 lead (Pb)-5 tin (Sn), and the thermoelectric element 3 is joined to this using 95 lead (Pb)-5 tin (Sn) solder.
) They are joined and fixed with solder.
他の部分については実施例１および２と同様であり、熱
電素子の低温側には放熱用のフィン２０が形成されてい
る。The other parts are the same as those in Examples 1 and 2, and a heat radiation fin 20 is formed on the low temperature side of the thermoelectric element.
そして実施例２と同様この熱電発電装置の燃焼室３１内
にブタンガスを供給することにより、触媒保持筒３０内
の触媒を用いて燃焼が促進され、燃焼室内壁の温度を２
５０℃まで上昇せしめる一方低温側を放熱フィンおよび
ファンを用いて７０℃程度に冷却し、両電極間に流れる
電流による起電力を取り出すようにしたものである。As in Example 2, by supplying butane gas into the combustion chamber 31 of this thermoelectric generator, combustion is promoted using the catalyst in the catalyst holding cylinder 30, and the temperature of the inner wall of the combustion chamber is reduced by 2.
The temperature is raised to 50°C, while the low temperature side is cooled down to about 70°C using heat radiation fins and a fan, and the electromotive force generated by the current flowing between both electrodes is extracted.
この場合も、内部抵抗変化率は小さく維持され、極めて
良好な熱電特性を呈しており、また長期にわたる使用に
際しても、破損も脱落もなく極めて信頼性の高いものと
なっている。In this case as well, the rate of change in internal resistance is maintained small, exhibiting extremely good thermoelectric properties, and is extremely reliable with no breakage or falling off even during long-term use.
そしてこの場合は、燃焼室が金属製であることにより、
セラミック製の燃焼室と比較して、燃焼ガス導入部、排
気部等との接合が容易であり、機械的衝撃に強いことか
ら、取扱いが極めて容易となる。And in this case, because the combustion chamber is made of metal,
Compared to a ceramic combustion chamber, it is easier to connect to the combustion gas inlet, exhaust, etc., and is resistant to mechanical shock, making it extremely easy to handle.
以上説明してきたように、本発明の熱電発電装置によれ
ば、燃焼室の外壁に直接熱電素子を接合するようにして
いるため、熱電効率が良好で信頼性の高いものとなる。As explained above, according to the thermoelectric power generation device of the present invention, since the thermoelectric element is directly bonded to the outer wall of the combustion chamber, the thermoelectric power generation device has good thermoelectric efficiency and high reliability.
第１図は本発明の第１の実施例の熱電発電装置を示す図
、第２図は本発明の第２の実施例の熱電発電装置を示す
図、第３図は本発明の第３の実施例の熱電発電装置を示
す図、第４図および第５図は従来例の熱電発電装置を示
す図である。
１．１ｓ・・・燃焼室、１０・・・熱電発電部、２０・
・・冷却用ファン、３０・・・触媒保持筒、１１・・・
高温側熱交換基板、２．１２・・・低温側熱交換基板、
３１３・・・熱電素子、４，５・・・アンバー合金電極
（厚膜）、１４．１５・・・電極、２４．２５・・・ア
ンバー合金（チップ）、Ｍ・・・メタライズ層、３０・
・触媒保持筒、・３１・・・アンバー合金（燃焼室）、
３２・・酸化シリコン膜。FIG. 1 is a diagram showing a thermoelectric generator according to a first embodiment of the present invention, FIG. 2 is a diagram depicting a thermoelectric generator according to a second embodiment of the present invention, and FIG. 3 is a diagram showing a thermoelectric generator according to a third embodiment of the present invention. FIGS. 4 and 5 are diagrams showing a thermoelectric power generation device according to an embodiment, and FIGS. 4 and 5 are diagrams showing a conventional thermoelectric power generation device. 1.1s... Combustion chamber, 10... Thermoelectric power generation section, 20.
...Cooling fan, 30...Catalyst holding cylinder, 11...
High temperature side heat exchange board, 2.12... low temperature side heat exchange board,
313... Thermoelectric element, 4,5... Amber alloy electrode (thick film), 14.15... Electrode, 24.25... Amber alloy (chip), M... Metallized layer, 30...
・Catalyst holding tube, ・31... Amber alloy (combustion chamber),
32...Silicon oxide film.
Claims (6)
の外壁に電極を介して高温側が直接接合せしめられた熱
電素子対とを具備し、前記燃焼室の燃焼熱で高温側を加
熱し、起電力を生起せしめるようにしたことを特徴とす
る熱電装置。(1) A combustion chamber made of a thermally conductive cylindrical body, and a pair of thermoelectric elements whose high temperature side is directly connected to the outer wall of the cylindrical body via an electrode, and the combustion chamber generates a high temperature due to the combustion heat of the combustion chamber. A thermoelectric device characterized by heating the side and generating an electromotive force.
以下の材料から構成されていることを特徴とする請求項
第（１）に記載の熱電発電装置。(2) The cylindrical body has a linear expansion coefficient of 4×10^-^6/℃
The thermoelectric power generation device according to claim 1, characterized in that it is made of the following materials:
記電極は、前記筒状体表面にメタライズ層を介して形成
された線膨脹係数８×１０＾−＾６／℃以下、体積抵抗
率１０＾−＾６Ωｃｍ以下の材料からなる材料から構成
されていることを特徴とする請求項第（２）に記載の熱
電発電装置。(3) The cylindrical body is made of an insulating material, and the electrode is formed on the surface of the cylindrical body through a metallized layer with a linear expansion coefficient of 8×10^-^6/℃ or less, and a volumetric 3. The thermoelectric power generation device according to claim 2, wherein the thermoelectric generator is made of a material having a resistivity of 10^-^6 Ωcm or less.
り、 前記電極は、前記筒状体表面全体を覆う絶縁層上にメタ
ライズ層を介して形成された線膨脹係数８×１０＾−＾
６／℃以下、体積抵抗率１０＾−＾６Ωｃｍ以下の材料
から構成されていることを特徴とする請求項第（２）に
記載の熱電発電装置。(4) The heat exchange substrate is made of a conductive material, and the electrode is formed on an insulating layer covering the entire surface of the cylindrical body via a metallized layer, and has a linear expansion coefficient of 8×10^- ^
6/C or less and a volume resistivity of 10^-^6 Ωcm or less.
ー合金のうちのいずれかであることを特徴とする請求項
第（１）乃至第（４）項のいずれかに記載の熱電発電装
置。(5) The thermoelectric power generation device according to any one of claims (1) to (4), wherein the cylindrical body is made of quartz glass, low expansion glass, or an amber alloy. .
ステン、タンタルなどの高融点金属あるいはこれらと銅
との合金からなることを特徴とする請求項第（１）乃至
第（４）項のいずれかに記載の熱電発電装置。(6) The electrode is made of a high melting point metal such as an amber alloy, molybdenum, tungsten, tantalum, or an alloy of these and copper. The thermoelectric power generation device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2201858A JPH0485973A (en) | 1990-07-30 | 1990-07-30 | Thermoelectric generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2201858A JPH0485973A (en) | 1990-07-30 | 1990-07-30 | Thermoelectric generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485973A true JPH0485973A (en) | 1992-03-18 |
Family
ID=16448056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2201858A Pending JPH0485973A (en) | 1990-07-30 | 1990-07-30 | Thermoelectric generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485973A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0813253A2 (en) * | 1996-06-11 | 1997-12-17 | Matsushita Electric Industrial Co., Ltd. | Thermoelectric generator |
| US6307142B1 (en) * | 2000-04-13 | 2001-10-23 | Hi-Z Technology, Inc. | Combustion heat powered portable electronic device |
| JP2004180488A (en) * | 2002-11-11 | 2004-06-24 | Matsushita Electric Works Ltd | Combustion device and thermoelectric generator |
| EP2180534A1 (en) * | 2008-10-27 | 2010-04-28 | Corning Incorporated | Energy conversion devices and methods |
| US8674588B2 (en) | 2010-02-26 | 2014-03-18 | Fujitsu Limited | Electric power generation device, electric power generation method, and electric power generation device manufacturing method |
| JP2014241318A (en) * | 2013-06-11 | 2014-12-25 | 北海道特殊飼料株式会社 | Thermoelectric generation device |
| GB2555814A (en) * | 2016-11-10 | 2018-05-16 | Univ Cranfield | Improvement in and relating to catalysis |
-
1990
- 1990-07-30 JP JP2201858A patent/JPH0485973A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0813253A2 (en) * | 1996-06-11 | 1997-12-17 | Matsushita Electric Industrial Co., Ltd. | Thermoelectric generator |
| EP0813253A3 (en) * | 1996-06-11 | 2006-01-25 | Matsushita Electric Industrial Co., Ltd. | Thermoelectric generator |
| US6307142B1 (en) * | 2000-04-13 | 2001-10-23 | Hi-Z Technology, Inc. | Combustion heat powered portable electronic device |
| WO2001080325A1 (en) * | 2000-04-13 | 2001-10-25 | Hi-Z Technology, Inc. | Combustion heat powered portable electronic device |
| JP2004180488A (en) * | 2002-11-11 | 2004-06-24 | Matsushita Electric Works Ltd | Combustion device and thermoelectric generator |
| EP2180534A1 (en) * | 2008-10-27 | 2010-04-28 | Corning Incorporated | Energy conversion devices and methods |
| US8674588B2 (en) | 2010-02-26 | 2014-03-18 | Fujitsu Limited | Electric power generation device, electric power generation method, and electric power generation device manufacturing method |
| JP2014241318A (en) * | 2013-06-11 | 2014-12-25 | 北海道特殊飼料株式会社 | Thermoelectric generation device |
| CN105379102A (en) * | 2013-06-11 | 2016-03-02 | 北海道特殊饲料株式会社 | Thermoelectric generation device |
| EP3010139A4 (en) * | 2013-06-11 | 2016-06-29 | Hokkaido Tokushushiryou Kabushikikaisha | Thermoelectric generation device |
| GB2555814A (en) * | 2016-11-10 | 2018-05-16 | Univ Cranfield | Improvement in and relating to catalysis |
| GB2555814B (en) * | 2016-11-10 | 2020-05-27 | Univ Cranfield | Improvement in and relating to catalysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2173007C2 (en) | Thermoelectric device | |
| JP5160784B2 (en) | Thermoelectric conversion element module | |
| JP4255691B2 (en) | Electronic component cooling device using thermoelectric conversion material | |
| CN101587934A (en) | Diaphragm type thermoelectric converting component and manufacturing method thereof | |
| TWI620354B (en) | Thermoelectric conversion device having insulating diamond-like film, method for making the same and thermoelectric conversion module | |
| JPH0485973A (en) | Thermoelectric generator | |
| CN103022338B (en) | Manufacturing method of cascade temperature-difference power generating device | |
| JPH0951126A (en) | Thermoelectric conversion device | |
| JP2996305B2 (en) | High thermal resistance thermoelectric generator | |
| US3524772A (en) | Generator of electrical energy | |
| US20200203592A1 (en) | Electric power generation from a thin-film based thermoelectric module placed between each hot plate and cold plate of a number of hot plates and cold plates | |
| JP2000286463A (en) | Thermoelectric conversion module | |
| JP3472593B2 (en) | Thermoelectric device | |
| JP2018093152A (en) | Thermoelectric power generation device | |
| JP3498223B2 (en) | Thermopile | |
| CN106784278B (en) | Thermoelectric conversion device | |
| JP2000188429A (en) | Thermo-electric conversion module | |
| TWI744717B (en) | Thermoelectric power generating device and manufacturing method thereof | |
| JPS5975684A (en) | Thermo-electric generating element | |
| US20200227613A1 (en) | Thin-film thermoelectric module based energy box to generate electric power at utility scale | |
| WO2002021608A1 (en) | Thermoelement | |
| KR102423607B1 (en) | Thermoelectric module | |
| JP2003234515A (en) | Thermoelectric module | |
| JP2017152618A (en) | Thermoelectric module and manufacturing method thereof and thermoelectric device | |
| JP2021057383A (en) | Thermoelectric conversion device |