JPH08204241A - Thermoelectric conversion system - Google Patents

Thermoelectric conversion system

Info

Publication number
JPH08204241A
JPH08204241A JP7011570A JP1157095A JPH08204241A JP H08204241 A JPH08204241 A JP H08204241A JP 7011570 A JP7011570 A JP 7011570A JP 1157095 A JP1157095 A JP 1157095A JP H08204241 A JPH08204241 A JP H08204241A
Authority
JP
Japan
Prior art keywords
electrode
thermoelectric element
conversion device
thermoelectric conversion
thermoelectric
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.)
Withdrawn
Application number
JP7011570A
Other languages
Japanese (ja)
Inventor
Yoshinobu Momoi
義宣 桃井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP7011570A priority Critical patent/JPH08204241A/en
Publication of JPH08204241A publication Critical patent/JPH08204241A/en
Withdrawn legal-status Critical Current

Links

Abstract

PURPOSE: To prolong the service life of a thermoelectric conversion system by providing a member for suppressing crack caused by thermal stress accompanied with thermal deformation of a thermoelectric element comprising at least a pair of P-type and N-type semiconductors juxtaposed between heat-exchangers. CONSTITUTION: Two heat exchangers 1, 2 are arranged while facing the inner surfaces 1b, 2b nearly in parallel with each other at an interval for containing a thermoelectric element 3 and an electrode 6. The thermoelectric element 3 comprises a plurality of P type semiconductors 4, 4,... and N type semiconductors 5, 5,.... A crack suppressing member, i.e., a fusion part 11, fills a crack generated in the thermoelectric element 3, a joint 10, etc. The fusion part 11 is composed of a low temperature solder or the like contained in the containing part 9 of the electrode 6 and has melting point of 183 deg.C, for example. When a crack is generated at the joint 10 due to deformation caused by thermal expansion/contraction, electric resistance increases to raise the temperature at the joint 10 or the like thus suppressing disconnection.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、電気を熱または熱を電
気に変換する熱電気変換装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoelectric converter for converting electricity into heat or heat into electricity.

【0002】[0002]

【従来の技術】従来、ペルチェ効果を利用して電気を熱
に、ゼーベック効果を利用して熱を電気に変換するもの
として熱電気変換装置がある。このものは、特開平5−
275795号に開示されるように、相対向するよう配
設された略平板状の熱交換器1,2 と、その熱交換器1,2
の間にあって並設される複数個のP型半導体4 とN型半
導体5 を有する熱電素子3 と、熱電素子3 のP型半導体
4 とN型半導体5 とが交互に直列に配設されるよう連結
するとともに熱交換器1,2 に取着される電極6 と、を具
備している(図5及び図6)。この熱電素子3 のP型半
導体4 とN型半導体5 は、焼結等で形成された重金属製
の略直方体状であって、P型半導体4 及びN型半導体5
と電極6 は、半田10等で接合されている。そして、その
電極6 は、熱交換器1 または2 と接着剤等で固着してい
る。
2. Description of the Related Art Conventionally, there is a thermoelectric converter for converting electricity into heat using the Peltier effect and converting heat into electricity using the Seebeck effect. This one is disclosed in
As disclosed in Japanese Patent No. 275795, heat exchangers 1, 2 arranged in a substantially flat plate shape facing each other, and the heat exchangers 1, 2
A thermoelectric element 3 having a plurality of P-type semiconductors 4 and N-type semiconductors 5 arranged in parallel between them, and a P-type semiconductor of the thermoelectric element 3
4 and N-type semiconductor 5 are connected so as to be alternately arranged in series, and electrodes 6 attached to heat exchangers 1 and 2 are provided (FIGS. 5 and 6). The P-type semiconductor 4 and the N-type semiconductor 5 of the thermoelectric element 3 are substantially rectangular parallelepiped made of a heavy metal formed by sintering or the like.
The electrode 6 and the electrode 6 are joined by solder 10 or the like. The electrode 6 is fixed to the heat exchanger 1 or 2 with an adhesive or the like.

【0003】[0003]

【発明が解決しようとする課題】前述した熱電気変換装
置は、熱電素子、電極、熱交換器の相互間が半田や接着
剤等で固着しているため、強固な構造となっている。し
かしながら、熱電気変換装置全体が剛体となっているた
め、熱膨張、熱収縮にともなう変形により熱ストレスが
発生し、それが繰り返されることにより熱電素子や半田
等にクラックが発生し、断線に至って寿命が短くなるこ
とがある。
The thermoelectric conversion device described above has a strong structure because the thermoelectric element, the electrodes, and the heat exchanger are fixed to each other with solder, an adhesive, or the like. However, because the entire thermoelectric conversion device is a rigid body, thermal stress occurs due to deformation due to thermal expansion and contraction, and by repeating it, cracks occur in the thermoelectric element, solder, etc., leading to disconnection. Life may be shortened.

【0004】本発明は、かかる事由に鑑みてなしたもの
で、その目的とするところは、クラックの発生を抑制す
ることにより長寿命化が図れる熱電気変換装置を提供す
ることである。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a thermoelectric conversion device capable of extending the life by suppressing the generation of cracks.

【0005】[0005]

【課題を解決するための手段】かかる課題を解決するた
めに、請求項1記載の熱電気変換装置は、相対向するよ
う配設された略平板状の熱交換器と、該熱交換器の間に
あって並設される少なくとも1対のP型半導体とN型半
導体を有する熱電素子と、該熱電素子のP型半導体とN
型半導体とが交互に直列に配設されるよう連結するとと
もに熱交換器に取着される電極と、を具備する熱電気変
換装置において、熱電素子等の熱変形に伴う熱ストレス
で発生するクラックを抑制するクラック抑制部材を設け
た構成としている。
In order to solve such a problem, a thermoelectric converter according to a first aspect of the present invention has a substantially flat plate-shaped heat exchanger arranged so as to face each other, and the heat exchanger. A thermoelectric element having at least one pair of P-type semiconductor and N-type semiconductor arranged in parallel with each other, and a P-type semiconductor and N of the thermoelectric element
In a thermoelectric conversion device comprising an electrode attached to a heat exchanger and connected so that the semiconductors are alternately arranged in series, cracks caused by thermal stress caused by thermal deformation of a thermoelectric element or the like. The structure is provided with a crack suppressing member that suppresses

【0006】また、請求項2記載の熱電気変換装置は、
請求項1記載のクラック抑制部材に、熱電素子と電極と
の間にあって常温では固体であって異常温度に上昇した
ときに溶融する溶融部を設けた構成としている。
Further, the thermoelectric conversion device according to claim 2 is
The crack suppressing member according to claim 1 is provided with a melting portion provided between the thermoelectric element and the electrode, which is solid at room temperature and melts when the temperature rises to an abnormal temperature.

【0007】また、請求項3記載の熱電気変換装置は、
請求項1記載のクラック抑制部材に、熱電素子と電極を
磁力で結合する磁力結合手段を設けた構成としている。
The thermoelectric converter according to claim 3 is
The crack suppressing member according to claim 1 is provided with magnetic force coupling means for coupling the thermoelectric element and the electrode by magnetic force.

【0008】また、請求項4記載の熱電気変換装置は、
請求項1乃至3記載のクラック抑制部材に、電極と熱交
換器との間にあって均一な圧力を伝達する流体状の押圧
体と、押圧体を保持して電極と接するシート状の保持体
と、を設けた構成としている。
Further, the thermoelectric conversion device according to claim 4 is
A fluid-like pressing body that transmits a uniform pressure between the electrode and the heat exchanger, a sheet-like holding body that holds the pressing body and contacts the electrode, to the crack suppressing member according to claim 1. Is provided.

【0009】また、請求項5記載の熱電気変換装置は、
請求項4記載の保持体を、摩擦係数の小さい部材で形成
した構成としている。
The thermoelectric converter according to claim 5 is
The holder according to claim 4 is formed of a member having a small friction coefficient.

【0010】[0010]

【作用】請求項1記載の構成によれば、熱電素子等に膨
張、収縮からなる熱変形が発生しても、クラック抑制部
材でクラックの発生を抑制することができる。
According to the structure of the first aspect, even if the thermoelectric element or the like is thermally deformed by expansion and contraction, the crack suppressing member can suppress the generation of cracks.

【0011】また、請求項2記載の構成によれば、請求
項1の作用に加えて、熱電素子等にクラックが発生して
溶融部が異常温度になったときに溶融するため、そのク
ラックを埋めることができる。
According to the second aspect of the present invention, in addition to the effect of the first aspect, since cracks are generated in the thermoelectric element or the like and the melting portion is melted at an abnormal temperature, the cracks are generated. Can be filled.

【0012】また、請求項3記載の構成によれば、請求
項1の作用に加えて、熱電素子と電極は磁力で結合して
いるため、熱ストレスが発生してもそれらの位置関係が
変化して熱ストレスを抑制する。
According to the structure of claim 3, in addition to the effect of claim 1, since the thermoelectric element and the electrode are magnetically coupled to each other, their positional relationship changes even if thermal stress occurs. And suppress heat stress.

【0013】また、請求項4記載の構成によれば、請求
項1乃至3のいずれかの作用に加えて、押圧体により熱
電素子の各半導体には均一な圧力が加わっているので、
局所的に大きな熱ストレスは発生しにくい。
According to the structure of claim 4, in addition to the effect of any one of claims 1 to 3, since a uniform pressure is applied to each semiconductor of the thermoelectric element by the pressing body,
Large heat stress is unlikely to occur locally.

【0014】また、請求項5記載の構成によれば、請求
項4の作用に加えて、熱ストレスが発生しても保持体は
摩擦係数が小さいため、電極は位置が変化して熱ストレ
スを抑制する。
According to the structure of claim 5, in addition to the effect of claim 4, since the friction coefficient of the holding body is small even if heat stress occurs, the position of the electrode changes and heat stress is applied. Suppress.

【0015】[0015]

【実施例】以下、本発明の第1実施例を図1及び図2に
基づいて説明する。なお、従来例で説明したものと基本
的な機能が同じ部材には、同一の符号を付してある。図
1は熱電気変換装置の断面図であり、熱電気変換装置
は、2個の熱交換器1,2 と、P型半導体4,4 …、N型半
導体5,5 …からなる熱電素子3 と、電極6 とを主要構成
部材としている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. Members having the same basic functions as those described in the conventional example are designated by the same reference numerals. FIG. 1 is a cross-sectional view of a thermoelectric conversion device. The thermoelectric conversion device includes two heat exchangers 1, 2 and a thermoelectric element 3 composed of P-type semiconductors 4, 4, ..., N-type semiconductors 5, 5. And the electrode 6 as main constituent members.

【0016】熱交換器1,2 は、熱を外部に放出したり、
外部より熱を吸収するもので、外方面1a,2a と内方面1
b,2b を有する略平板状にアルミ等の熱伝導の良好な材
料で形成される。そして、2個の熱交換器1,2 は、その
対向する内方面1b,2b が略平行で、後述する熱電素子3
、及び電極6 が収納される間隔を有するよう配設され
る。また、この熱交換器1,2 の外方面1a,2a は、放熱あ
るいは吸熱するために、空気、高温物質、低温物質等と
当接する。
The heat exchangers 1 and 2 release heat to the outside,
It absorbs heat from the outside, and the outer surface 1a, 2a and the inner surface 1
It is formed of a material having good heat conduction such as aluminum in a substantially flat plate shape having b and 2b. The two heat exchangers 1 and 2 have opposing inner surfaces 1b and 2b that are substantially parallel to each other, and have a thermoelectric element 3 to be described later.
, And the electrode 6 are arranged so as to have a space for accommodating them. Further, the outer surfaces 1a, 2a of the heat exchangers 1, 2 come into contact with air, a high temperature substance, a low temperature substance or the like in order to radiate or absorb heat.

【0017】熱電素子3 は、電気を熱に変換するもので
あり、複数のP型半導体4,4 …とN型半導体5,5 …を有
する。各P型半導体4 及びN型半導体5 は、重金属製で
略直方体状に形成され、P型半導体4 とN型半導体5 が
交互となるように並設されるとともに、そのP型半導体
4 及びN型半導体5 の端面は後述する電極6 に接合され
る。従って、電極6 を介してP型半導体4 とN型半導体
5 とが交互となるように直列に配設される。
The thermoelectric element 3 converts electricity into heat and has a plurality of P-type semiconductors 4, 4, ... And N-type semiconductors 5, 5. The P-type semiconductors 4 and the N-type semiconductors 5 are made of heavy metal and are formed into a substantially rectangular parallelepiped shape. The P-type semiconductors 4 and the N-type semiconductors 5 are arranged side by side alternately and the P-type semiconductors
The end faces of 4 and the N-type semiconductor 5 are bonded to an electrode 6 described later. Therefore, through the electrode 6, the P-type semiconductor 4 and the N-type semiconductor
5 and 5 are alternately arranged in series.

【0018】電極6 は、熱電素子3 のP型半導体4 とN
型半導体5 とを連結するとともに熱交換器1,2 に取着さ
れるもので、第1電極7,7 …及び第2電極8,8 …より構
成される。この第1電極7,7 …及び第2電極8,8 …は、
銅等の導電材料でもって略平板状に形成され、第1電極
7,7 …は熱交換器1 の内方面1aに、第2電極8,8 …は熱
交換器2 の内方面2aに取着される。また、第1電極7,7
…及び第2電極8,8 …の熱電素子3 と接合する接合面7
a,8a には、後述するクラック抑制部材を装着する凹状
の装着部9,9 …を有する。
The electrode 6 is composed of the P-type semiconductor 4 and N of the thermoelectric element 3.
Which is connected to the mold semiconductor 5 and is attached to the heat exchangers 1 and 2, and is composed of first electrodes 7, 7 ... And second electrodes 8, 8. The first electrodes 7,7 ... And the second electrodes 8,8 ...
The first electrode is formed of a conductive material such as copper into a substantially flat plate shape.
, 7 are attached to the inner surface 1a of the heat exchanger 1, and the second electrodes 8, 8 are attached to the inner surface 2a of the heat exchanger 2. Also, the first electrodes 7,7
... and the second electrode 8, 8 ... Joining surface 7 for joining with the thermoelectric element 3
The a and 8a have concave mounting parts 9, 9 ... For mounting a crack suppressing member to be described later.

【0019】10は接合部で、熱電素子3 と後述する溶融
部を接合する。この接合部10は、高温半田等で形成さ
れ、その融点は例えば、290℃である。11はクラック
抑制部材としての溶融部で、熱電素子3 や接合部10等に
発生したクラックを埋める。この溶融部11は、低温半田
等で形成されて、電極6 の装着部9 に収納されるもので
あり、その融点は例えば183℃である。
Reference numeral 10 denotes a joining portion, which joins the thermoelectric element 3 and a fusion portion described later. The joint portion 10 is formed of high temperature solder or the like and has a melting point of 290 ° C., for example. Reference numeral 11 denotes a melted portion as a crack suppressing member, which fills cracks generated in the thermoelectric element 3, the joint portion 10 and the like. The melting portion 11 is formed of low-temperature solder or the like and accommodated in the mounting portion 9 of the electrode 6, and its melting point is 183 ° C., for example.

【0020】このものは、P型半導体4 及びN型半導体
5 に接合部10を接合したものを、溶融部11を介して第1
電極7 及び第2電極8 に接合する。そして、第1電極7
及び第2電極8 は、接着剤またはグリース等を介して熱
交換器1,2 で挟着する。
This is a P-type semiconductor 4 and an N-type semiconductor
The joint part 10 is joined to the first part 5 through the fusion part 11.
It is bonded to the electrode 7 and the second electrode 8. And the first electrode 7
The second electrode 8 and the second electrode 8 are sandwiched between the heat exchangers 1 and 2 with an adhesive or grease or the like.

【0021】そして、この熱電気変換装置は、熱電素子
3 に通電することにより、熱電素子3 の端面の一方、す
なわち、第1電極7 及び第2電極8 のどちらか一方が発
熱し、他方が吸熱することにより、熱交換器1,2 のどち
らか一方が外部に熱を放出し、他方が外部より熱を吸収
する。その際、熱による膨張、収縮からなる変形で、接
合部10にクラックが発生することがある。クラックが発
生すると、電気抵抗が増加して、接合部10等の温度が上
昇する。その結果、溶融部11が溶融し、クラックを埋め
ることとなり、断線の発生が抑制される。なお、クラッ
クの発生しない通常使用においては、熱電素子3 の温度
は100℃を越すことがない。
This thermoelectric conversion device has a thermoelectric element.
When electricity is applied to 3, one of the end faces of the thermoelectric element 3, that is, one of the first electrode 7 and the second electrode 8 generates heat, and the other absorbs heat. One radiates heat to the outside and the other absorbs heat from the outside. At that time, cracks may occur in the joint portion 10 due to deformation caused by expansion and contraction due to heat. When a crack occurs, the electric resistance increases and the temperature of the joint 10 and the like rises. As a result, the melting portion 11 melts and fills the cracks, and the occurrence of disconnection is suppressed. It should be noted that the temperature of the thermoelectric element 3 does not exceed 100 ° C. in normal use in which cracks do not occur.

【0022】なお、接合部10を高温半田、溶融部11を低
温半田としたが、組み合わせを逆にしてもよく、その場
合は、接合部10にクラックが発生した場合は、まず接合
部10が溶融して、クラックを低減し、その後に溶融部11
が溶融して完全にクラックを無くす。また、溶融部11の
位置はこの例に限定されるものではなく、クラックの発
生しやすい近辺に配置すればよく、また、接合部10と混
ぜあわせてもよい。
Although the joint 10 is made of high-temperature solder and the melting portion 11 is made of low-temperature solder, the combination may be reversed. In that case, if cracks occur in the joint 10, first the joint 10 is Melts to reduce cracks, then melts 11
Melts and completely eliminates cracks. Further, the position of the fusion portion 11 is not limited to this example, and may be arranged in the vicinity where cracks are likely to occur, or may be mixed with the joint portion 10.

【0023】次に、第2実施例を図3に基づいて説明す
る。このものは、第1電極7 及び第2電極8 の接合面7
a,8a に磁力結合手段としての磁石12を埋め込むととも
に、P型半導体4 及びN型半導体5 に磁力結合手段とし
ての鉄分を混入したものである。このように構成するこ
とにより、第1電極7 及び第2電極8 とP型半導体4 及
びN型半導体5 は磁力で結合するため、熱ストレスによ
る変位を許容することができ、クラックの発生を抑制し
て長寿命化が図れる。
Next, a second embodiment will be described with reference to FIG. This is a joint surface 7 of the first electrode 7 and the second electrode 8.
Magnets 12 as magnetic force coupling means are embedded in a and 8a, and iron as magnetic force coupling means is mixed in the P-type semiconductor 4 and the N-type semiconductor 5. With this configuration, the first electrode 7 and the second electrode 8 are coupled to the P-type semiconductor 4 and the N-type semiconductor 5 by magnetic force, so that the displacement due to the thermal stress can be allowed and the generation of cracks can be suppressed. The life can be extended.

【0024】次に、第3実施例を図4に基づいて説明す
る。このものは、クラック抑制部材にパスカルの原理を
利用したものである。
Next, a third embodiment will be described with reference to FIG. This uses the principle of Pascal as a crack suppressing member.

【0025】13はクラック抑制部材としての押圧体で、
電極6 及び熱電素子3 に均一な圧力を加えるもので、熱
交換器1 の内方面1bに凹状の収納部14を設けて、そこに
収納される。この押圧体13は、パスカルの原理が適用で
きる流体状のもので、例えば、熱伝導性の高いシリコン
グリースを用いる。
Reference numeral 13 is a pressing body as a crack suppressing member,
A uniform pressure is applied to the electrode 6 and the thermoelectric element 3, and a concave storage portion 14 is provided on the inner surface 1b of the heat exchanger 1 and is stored therein. The pressing body 13 is a fluid-like material to which the Pascal principle can be applied, and for example, silicon grease having high thermal conductivity is used.

【0026】15はクラック抑制部材としての保持体で、
押圧体13を保持するとともに、第1電極7 と接するもの
で、テフロン等の摩擦係数の小さいものであって、シー
ト状に形成される。この保持体15は、押圧体13が収納部
14より漏れることのないように、熱交換器1 に装着され
る。
Reference numeral 15 is a holder as a crack suppressing member,
It holds the pressing body 13 and is in contact with the first electrode 7, has a small friction coefficient such as Teflon, and is formed in a sheet shape. In this holding body 15, the pressing body 13 is a storage unit.
It is attached to the heat exchanger 1 so that it does not leak from the 14.

【0027】このものは、熱電素子3 や電極6 の厚みが
製造条件等によって異なっても均一に熱交換器1 で押圧
するため、局所的な熱ストレスが発生しにくく、また、
熱ストレスが発生しても電極6 の位置が変位しやすいの
で、クラックが発生しにくい。なお、押圧体13及び保持
体15を熱交換器1 に設けたが、熱交換器2 に設けても、
両方共に設けてもどちらでもよい。
In this device, even if the thicknesses of the thermoelectric element 3 and the electrode 6 are different depending on the manufacturing conditions and the like, the heat exchanger 1 uniformly presses them, so that local heat stress is unlikely to occur, and
Even if heat stress occurs, the position of the electrode 6 is easily displaced, so that cracks are less likely to occur. Although the pressing body 13 and the holding body 15 are provided in the heat exchanger 1, even if they are provided in the heat exchanger 2,
Both may be provided or either may be provided.

【0028】なお、本発明の熱電気変換装置は、ペルチ
ェ効果を利用して電気を熱に変換するものについて説明
したが、ゼーベック効果を利用して熱を電気に変換する
のに用いることもできる。
Although the thermoelectric converter of the present invention has been described as one that converts electricity into heat by utilizing the Peltier effect, it can also be used by converting heat into electricity by utilizing the Seebeck effect. .

【0029】[0029]

【発明の効果】請求項1記載の熱電気変換装置は、熱電
素子等に膨張、収縮からなる熱変形が発生しても、クラ
ック抑制部材でクラックの発生を抑制することができる
ので、断線が起こりにくく長寿命化が図れる。
According to the thermoelectric conversion device of the present invention, even if the thermoelectric element or the like undergoes thermal deformation such as expansion and contraction, the crack suppressing member can suppress the generation of cracks. It is unlikely to occur and the life can be extended.

【0030】また、請求項2記載の熱電気変換装置は、
請求項1の効果に加えて、熱電素子等にクラックが発生
して溶融部が異常温度になったときに溶融するため、そ
のクラックを埋めることができるので、容易にクラック
を抑制することができる。
The thermoelectric converter according to claim 2 is
In addition to the effect of claim 1, since the thermoelectric element or the like melts when a crack occurs and the melting portion becomes an abnormal temperature, the crack can be filled, so that the crack can be easily suppressed. .

【0031】また、請求項3記載の熱電気変換装置は、
請求項1の効果に加えて、熱電素子と電極は磁力で結合
しているため、熱ストレスが発生してもそれらの位置関
係が変化して熱ストレスを抑制するので、クラック等が
発生しにくい。
The thermoelectric converter according to claim 3 is
In addition to the effect of claim 1, since the thermoelectric element and the electrode are coupled by a magnetic force, even if a thermal stress occurs, the positional relationship between them is changed to suppress the thermal stress, so that cracks and the like are less likely to occur. .

【0032】また、請求項4記載の熱電気変換装置は、
請求項1乃至3のいずれかの効果に加えて、押圧体によ
り熱電素子の各半導体には均一な圧力が加わっているの
で、局所的に大きな熱ストレスは発生しにくいので、さ
らに長寿命化が図れる。
The thermoelectric converter according to claim 4 is
In addition to the effect according to any one of claims 1 to 3, since a uniform pressure is applied to each semiconductor of the thermoelectric element by the pressing body, a large thermal stress is unlikely to occur locally, so that the life is further extended. Can be achieved.

【0033】また、請求項5記載の熱電気変換装置は、
請求項4の効果に加えて、熱ストレスが発生しても保持
体は摩擦係数が小さいため、電極は位置が変化して熱ス
トレスを抑制するので、より一層長寿命化が図れる。
Further, the thermoelectric converter according to claim 5 is
In addition to the effect of claim 4, even if heat stress occurs, the friction coefficient of the holding body is small, and therefore the position of the electrode changes to suppress the heat stress, so that the life can be further extended.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1実施例を示す熱電気変換装置の断
面図である。
FIG. 1 is a sectional view of a thermoelectric conversion device showing a first embodiment of the present invention.

【図2】その熱電素子周辺の断面図である。FIG. 2 is a sectional view around the thermoelectric element.

【図3】本発明の第2実施例を示す熱電気変換装置の熱
電素子周辺の断面図である。
FIG. 3 is a sectional view around a thermoelectric element of a thermoelectric conversion device showing a second embodiment of the present invention.

【図4】本発明の第3実施例を示す熱電気変換装置の断
面図である。
FIG. 4 is a sectional view of a thermoelectric conversion device showing a third embodiment of the present invention.

【図5】本発明の従来例を示す熱電気変換装置の断面図
である。
FIG. 5 is a cross-sectional view of a thermoelectric conversion device showing a conventional example of the present invention.

【図6】本発明の従来例を示す別の熱電気変換装置の断
面図である。
FIG. 6 is a sectional view of another thermoelectric conversion device showing a conventional example of the present invention.

【符号の説明】[Explanation of symbols]

1,2 熱交換器 3 熱電素子 4 P型半導体 5 N型半導体 6 電極 7 第1接合部 8 第2接合部 9 装着部 10 接合部 11 溶融部 1,2 Heat exchanger 3 Thermoelectric element 4 P-type semiconductor 5 N-type semiconductor 6 Electrode 7 First joint part 8 Second joint part 9 Mounting part 10 Joint part 11 Melting part

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 相対向するよう配設された略平板状の
熱交換器と、該熱交換器の間にあって並設される少なく
とも1対のP型半導体とN型半導体を有する熱電素子
と、該熱電素子のP型半導体とN型半導体とが交互に直
列に配設されるよう連結するとともに熱交換器に取着さ
れる電極と、を具備する熱電気変換装置において、 熱電素子等の熱変形に伴う熱ストレスで発生するクラッ
クを抑制するクラック抑制部材を設けたことを特徴とす
る熱電気変換装置。
1. A substantially flat plate-shaped heat exchanger arranged so as to face each other, and a thermoelectric element having at least one pair of P-type semiconductor and N-type semiconductor arranged in parallel between the heat exchangers, A thermoelectric conversion device, comprising: an electrode connected to a heat exchanger, wherein P-type semiconductors and N-type semiconductors of the thermoelectric element are alternately arranged so as to be arranged in series. A thermoelectric conversion device comprising a crack suppressing member that suppresses a crack caused by thermal stress caused by deformation.
【請求項2】 前記クラック抑制部材に、熱電素子と
電極との間にあって常温では固体であって異常温度に上
昇したときに溶融する溶融部を設けたことを特徴とする
請求項1記載の熱電気変換装置。
2. The heat control device according to claim 1, wherein the crack suppressing member is provided with a melting portion between the thermoelectric element and the electrode, which is solid at room temperature and melts when the temperature rises to an abnormal temperature. Electrical converter.
【請求項3】 前記クラック抑制部材に、熱電素子と
電極を磁力で結合する磁力結合手段を設けたことを特徴
とする請求項1記載の熱電気変換装置。
3. The thermoelectric conversion device according to claim 1, wherein the crack suppressing member is provided with magnetic force coupling means for coupling the thermoelectric element and the electrode by magnetic force.
【請求項4】 前記クラック抑制部材に、電極と熱交
換器との間にあって均一な圧力を伝達する流体状の押圧
体と、押圧体を保持するシート状の保持体と、を設けた
ことを特徴とする請求項1乃至3記載の熱電気変換装
置。
4. The crack suppressing member is provided with a fluid-like pressing body that transmits a uniform pressure between the electrode and the heat exchanger, and a sheet-shaped holding body that holds the pressing body. The thermoelectric conversion device according to claim 1, wherein the thermoelectric conversion device is a thermoelectric conversion device.
【請求項5】 前記保持体を、摩擦係数の小さい部材
で形成したことを特徴とする請求項4記載の熱電気変換
装置。
5. The thermoelectric conversion device according to claim 4, wherein the holding body is formed of a member having a small friction coefficient.
JP7011570A 1995-01-27 1995-01-27 Thermoelectric conversion system Withdrawn JPH08204241A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7011570A JPH08204241A (en) 1995-01-27 1995-01-27 Thermoelectric conversion system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7011570A JPH08204241A (en) 1995-01-27 1995-01-27 Thermoelectric conversion system

Publications (1)

Publication Number Publication Date
JPH08204241A true JPH08204241A (en) 1996-08-09

Family

ID=11781594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7011570A Withdrawn JPH08204241A (en) 1995-01-27 1995-01-27 Thermoelectric conversion system

Country Status (1)

Country Link
JP (1) JPH08204241A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008150004A1 (en) * 2007-06-07 2008-12-11 Sumitomo Chemical Company, Limited Thermoelectric conversion module
JP2014127617A (en) * 2012-12-27 2014-07-07 Toyota Motor Corp Thermoelectric generator
JP2019012736A (en) * 2017-06-29 2019-01-24 三菱マテリアル株式会社 Thermoelectric conversion module and application method thereof
JP2019036644A (en) * 2017-08-17 2019-03-07 三菱マテリアル株式会社 Thermoelectric conversion cell and thermoelectric conversion module
JP2019062054A (en) * 2017-09-26 2019-04-18 三菱マテリアル株式会社 Thermoelectric conversion cell and thermoelectric conversion module

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008150004A1 (en) * 2007-06-07 2008-12-11 Sumitomo Chemical Company, Limited Thermoelectric conversion module
JP2014127617A (en) * 2012-12-27 2014-07-07 Toyota Motor Corp Thermoelectric generator
JP2019012736A (en) * 2017-06-29 2019-01-24 三菱マテリアル株式会社 Thermoelectric conversion module and application method thereof
JP2019036644A (en) * 2017-08-17 2019-03-07 三菱マテリアル株式会社 Thermoelectric conversion cell and thermoelectric conversion module
JP2019062054A (en) * 2017-09-26 2019-04-18 三菱マテリアル株式会社 Thermoelectric conversion cell and thermoelectric conversion module

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