JP6856361B2 - Laminated thermoelectric conversion device and heat dissipation structure - Google Patents

Laminated thermoelectric conversion device and heat dissipation structure Download PDF

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JP6856361B2
JP6856361B2 JP2016230034A JP2016230034A JP6856361B2 JP 6856361 B2 JP6856361 B2 JP 6856361B2 JP 2016230034 A JP2016230034 A JP 2016230034A JP 2016230034 A JP2016230034 A JP 2016230034A JP 6856361 B2 JP6856361 B2 JP 6856361B2
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維敏 石丸
維敏 石丸
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Sekisui Chemical Co Ltd
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本発明は、熱電変換デバイスに関する。また、本発明は、上記熱電変換デバイスを用いた積層熱電変換デバイスに関する。さらに、本発明は、上記熱電変換デバイス又は上記積層熱電変換デバイスを用いた放熱構造体に関する。 The present invention relates to a thermoelectric conversion device. The present invention also relates to a laminated thermoelectric conversion device using the thermoelectric conversion device. Furthermore, the present invention relates to the heat dissipation structure using the thermoelectric conversion device or the laminated thermoelectric conversion device.

近年、エネルギー問題への取り組みが活発化しており、熱エネルギーの回収技術への期待が高まっている。熱は、体温、太陽熱、エンジン及び工業排熱など様々な場面から回収することができ、最も一般的なエネルギー源である。また、エネルギー効率の高い低炭素社会を実現するために、熱エネルギーの回収技術の必要性は増大している。 In recent years, efforts to tackle energy problems have become active, and expectations for thermal energy recovery technology are increasing. Heat can be recovered from various situations such as body temperature, solar heat, engine and industrial waste heat, and is the most common energy source. Moreover, in order to realize a low-carbon society with high energy efficiency, the need for thermal energy recovery technology is increasing.

熱エネルギーの回収技術としては、ゼーベック効果（又はペルチェ効果）に基づく熱電変換デバイスが、温度差発電、熱センサ及び冷却などの様々な場面で既に活用されている。熱電変換デバイスは、例えば、ｐ型半導体とｎ型半導体との組み合わせである熱電対が多数直列に接続されたモジュール構造を有する。このような熱電変換デバイスは、可動部がないことから騒音及び振動が無く、スケール効果が無く、小さな温度差でも発電でき、様々な機器及び環境に組み込めるという多くの利点を有する。 As a thermal energy recovery technology, a thermoelectric conversion device based on the Seebeck effect (or Peltier effect) has already been used in various situations such as temperature difference power generation, heat sensors, and cooling. The thermoelectric conversion device has, for example, a modular structure in which a large number of thermocouples, which are a combination of a p-type semiconductor and an n-type semiconductor, are connected in series. Since such a thermoelectric conversion device has no moving parts, it has many advantages that it has no noise and vibration, has no scale effect, can generate power even with a small temperature difference, and can be incorporated into various devices and environments.

上記のような熱電変換デバイスの一例が、下記の特許文献１に開示されている。特許文献１に記載の熱電変換デバイスは、複数の熱電変換材料を有する。熱電変換材料の両端部はそれぞれ電極に接続されている。複数の熱電変換材料は、互いに平行に延びており、熱電変換材料が延びる方向と直交する方向に並んで配置されている。 An example of the thermoelectric conversion device as described above is disclosed in Patent Document 1 below. The thermoelectric conversion device described in Patent Document 1 has a plurality of thermoelectric conversion materials. Both ends of the thermoelectric conversion material are connected to electrodes, respectively. The plurality of thermoelectric conversion materials extend parallel to each other, and are arranged side by side in a direction orthogonal to the direction in which the thermoelectric conversion materials extend.

特開２０１５−１４６４０７号公報JP-A-2015-146407

熱電変換デバイスの出力は、一般的に、熱電変換材料を多く配置するほど大きくなる。しかしながら、熱電変換デバイスが単純なシート構造である場合や、蛇腹構造である場合には、熱源に対する接触部分が不安定となり易く、加熱される部分における温度のばらつきが大きくなる傾向がある。熱電変換デバイスの使用時に、複数の熱電変換材料間において、加熱される部分の温度のばらつきが大きい場合には、一部の熱電変換材料において加熱される温度が低くなり、熱電変換効率が低くなる傾向がある。 The output of a thermoelectric conversion device generally increases as more thermoelectric conversion materials are arranged. However, when the thermoelectric conversion device has a simple sheet structure or a bellows structure, the contact portion with respect to the heat source tends to be unstable, and the temperature variation in the heated portion tends to be large. When using a thermoelectric conversion device, if there is a large variation in the temperature of the heated portion among a plurality of thermoelectric conversion materials, the temperature of some thermoelectric conversion materials to be heated becomes low, and the thermoelectric conversion efficiency becomes low. Tend.

本発明は、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる熱電変換デバイスを提供することを目的とする。本発明は、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる積層熱電変換デバイスを提供することを目的とする。また、本発明は、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる放熱構造体を提供することを目的とする。 An object of the present invention is to provide a thermoelectric conversion device capable of suppressing temperature variation among a plurality of thermoelectric conversion materials and increasing thermoelectric conversion efficiency. An object of the present invention is to provide a laminated thermoelectric conversion device capable of suppressing temperature variation among a plurality of thermoelectric conversion materials and increasing thermoelectric conversion efficiency. Another object of the present invention is to provide a heat radiating structure capable of suppressing temperature variation among a plurality of thermoelectric conversion materials and increasing thermoelectric conversion efficiency.

本発明の広い局面によれば、基材と、前記基材の上面上に配置された少なくとも２つの第１の電極Ａと、前記基材の上面上に配置された少なくとも１つの第２の電極Ａと、前記基材の上面上に配置された少なくとも１つの第１の熱電変換材料Ａと、前記基材の上面上に配置された少なくとも１つの第２の熱電変換材料Ａとを備え、前記第１の電極Ａと、前記第１の熱電変換材料Ａと、前記第２の電極Ａと、前記第２の熱電変換材料Ａと、前記第１の電極Ａとが、この順で接続されて熱電変換素子Ａが構成されており、前記基材が、第１の折れ曲がり部を有し、前記基材が、前記第１の折れ曲がり部の一方側に第１の領域と、前記第１の折れ曲がり部の他方側に第２の領域とを有し、前記熱電変換素子Ａが、前記第１の領域及び前記第２の領域に配置されており、前記第１の電極Ａが、前記第１の領域、又は、前記第１及び第２の領域に配置されており、前記第１の熱電変換材料Ａ、及び前記第２の熱電変換材料Ａが前記第２の領域、又は、前記第１及び第２の領域に配置されており、前記第２の電極Ａが、前記第２の領域に配置されている、熱電変換デバイスが提供される。 According to a broad aspect of the present invention, a substrate, at least two first electrodes A arranged on the upper surface of the substrate, and at least one second electrode arranged on the upper surface of the substrate. A, at least one first thermoelectric conversion material A arranged on the upper surface of the base material, and at least one second thermoelectric conversion material A arranged on the upper surface of the base material. The first electrode A, the first thermoelectric conversion material A, the second electrode A, the second thermoelectric conversion material A, and the first electrode A are connected in this order. The thermoelectric conversion element A is configured, the base material has a first bent portion, and the base material has a first region on one side of the first bent portion and the first bent portion. The thermoelectric conversion element A has a second region on the other side of the portion, the thermoelectric conversion element A is arranged in the first region and the second region, and the first electrode A is the first region. The first thermoelectric conversion material A and the second thermoelectric conversion material A are arranged in the region or the first and second regions, and the first thermoelectric conversion material A and the second thermoelectric conversion material A are arranged in the second region or the first and first regions. A thermoelectric conversion device is provided in which the second electrode A is arranged in the second region and the second electrode A is arranged in the second region.

本発明に係る熱電変換デバイスのある特定の局面では、熱電変換デバイスは、前記基材の上面上に配置された少なくとも２つの第１の電極Ｂと、前記基材の上面上に配置された少なくとも１つの第２の電極Ｂと、前記基材の上面上に配置された少なくとも１つの第１の熱電変換材料Ｂと、前記基材の上面上に配置された少なくとも１つの第２の熱電変換材料Ｂとをさらに備え、前記第１の電極Ｂと、前記第１の熱電変換材料Ｂと、前記第２の電極Ｂと、前記第２の熱電変換材料Ｂと、前記第１の電極Ｂとが、この順で接続されて熱電変換素子Ｂが構成されており、前記基材が、第２の折れ曲がり部を有し、前記基材が、前記第１，第２の折れ曲がり部の間に前記第１の領域と、前記第１の折れ曲がり部の外側に前記第２の領域と、前記第２の折れ曲がり部の外側に第３の領域とを有し、前記熱電変換素子Ｂが、前記第１の領域及び前記第３の領域に配置されており、前記第１の電極Ｂが、前記第１の領域、又は、前記第１及び第３の領域に配置されており、前記第１の熱電変換材料Ｂ、及び前記第２の熱電変換材料Ｂが前記第３の領域、又は、前記第１及び第３の領域に配置されており、前記第２の電極Ｂが、前記第３の領域に配置されている。 In certain aspects of the thermoelectric conversion device according to the present invention, the thermoelectric conversion device has at least two first electrodes B disposed on the upper surface of the substrate and at least two electrodes B disposed on the upper surface of the substrate. One second electrode B, at least one first thermoelectric conversion material B arranged on the upper surface of the base material, and at least one second thermoelectric conversion material arranged on the upper surface of the base material. The first electrode B, the first thermoelectric conversion material B, the second electrode B, the second thermoelectric conversion material B, and the first electrode B are further provided with B. , In this order, the thermoelectric conversion element B is configured, the base material has a second bent portion, and the base material has the first bent portion between the first and second bent portions. It has a region 1, a second region outside the first bent portion, and a third region outside the second bent portion, and the thermoelectric conversion element B has the first bent portion. The first thermoelectric conversion material is arranged in the region and the third region, and the first electrode B is arranged in the first region or the first and third regions. B and the second thermoelectric conversion material B are arranged in the third region or the first and third regions, and the second electrode B is arranged in the third region. ing.

本発明に係る熱電変換デバイスのある特定の局面では、前記熱電変換素子Ａと前記熱電変換素子Ｂとが電気的に接続されている。 In a specific aspect of the thermoelectric conversion device according to the present invention, the thermoelectric conversion element A and the thermoelectric conversion element B are electrically connected.

本発明に係る熱電変換デバイスのある特定の局面では、前記熱電変換デバイスは、前記第２の電極Ａを少なくとも２つ有し、前記第１の熱電変換材料Ａを少なくとも２つ有し、前記第１の電極Ａと、前記第１の熱電変換材料Ａと、前記第２の電極Ａと、前記第２の熱電変換材料Ａと、前記第１の電極Ａと、前記第１の熱電変換材料Ａと、前記第２の電極Ａとが、この順で接続されて前記熱電変換素子Ａが構成されている。 In a particular aspect of the thermoelectric conversion device according to the present invention, the thermoelectric conversion device has at least two of the second electrodes A and at least two of the first thermoelectric conversion materials A. Electrode A of 1, the first thermoelectric conversion material A, the second electrode A, the second thermoelectric conversion material A, the first electrode A, and the first thermoelectric conversion material A. And the second electrode A are connected in this order to form the thermoelectric conversion element A.

本発明の広い局面によれば、前記熱電変換デバイスを複数有し、複数の前記熱電変換デバイスが、前記第１の領域において、互いに接触している部分を有する、積層熱電変換デバイスが提供される。 According to a broad aspect of the present invention, there is provided a laminated thermoelectric conversion device having a plurality of the thermoelectric conversion devices and having a portion in which the plurality of the thermoelectric conversion devices are in contact with each other in the first region. ..

本発明に係る積層熱電変換デバイスのある特定の局面では、複数の前記熱電変換デバイスが、前記第２の領域及び前記第３の領域のそれぞれにおいて、互いに接触していない部分を有する。 In a particular aspect of the laminated thermoelectric conversion device according to the present invention, the plurality of the thermoelectric conversion devices have portions that are not in contact with each other in each of the second region and the third region.

本発明の広い局面によれば、熱源と、前記熱電変換デバイスとを備え、前記熱源に対して、前記熱電変換デバイスが、前記第１の領域において接触している、放熱構造体が提供される。 According to a broad aspect of the present invention, there is provided a heat dissipation structure comprising a heat source and the thermoelectric conversion device, wherein the thermoelectric conversion device is in contact with the heat source in the first region. ..

本発明に係る熱電変換デバイスは、基材と、上記基材の上面上に配置された少なくとも２つの第１の電極Ａと、上記基材の上面上に配置された少なくとも１つの第２の電極Ａと、上記基材の上面上に配置された少なくとも１つの第１の熱電変換材料Ａと、上記基材の上面上に配置された少なくとも１つの第２の熱電変換材料Ａとを備え、上記第１の電極Ａと、上記第１の熱電変換材料Ａと、上記第２の電極Ａと、上記第２の熱電変換材料Ａと、上記第１の電極Ａとが、この順で接続されて熱電変換素子Ａが構成されており、上記基材が、第１の折れ曲がり部を有し、上記基材が、上記第１の折れ曲がり部の一方側に第１の領域と、上記第１の折れ曲がり部の他方側に第２の領域とを有し、上記熱電変換素子Ａが、上記第１の領域及び上記第２の領域に配置されており、上記第１の電極Ａが、上記第１の領域、又は、上記第１及び第２の領域に配置されており、上記第１の熱電変換材料Ａ、及び上記第２の熱電変換材料Ａが上記第２の領域、又は、上記第１及び第２の領域に配置されており、上記第２の電極Ａが、上記第２の領域に配置されているので、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる。 The thermoelectric conversion device according to the present invention includes a base material, at least two first electrodes A arranged on the upper surface of the base material, and at least one second electrode arranged on the upper surface of the base material. A, at least one first thermoelectric conversion material A arranged on the upper surface of the base material, and at least one second thermoelectric conversion material A arranged on the upper surface of the base material are provided. The first electrode A, the first thermoelectric conversion material A, the second electrode A, the second thermoelectric conversion material A, and the first electrode A are connected in this order. The thermoelectric conversion element A is configured, and the base material has a first bent portion, and the base material has a first region on one side of the first bent portion and the first bent portion. The thermoelectric conversion element A has a second region on the other side of the portion, the thermoelectric conversion element A is arranged in the first region and the second region, and the first electrode A is the first region. The region or the first and second regions are arranged, and the first thermoelectric conversion material A and the second thermoelectric conversion material A are arranged in the second region or the first and first regions. Since the second electrode A is arranged in the second region, the temperature variation among a plurality of thermoelectric conversion materials can be suppressed, and the thermoelectric conversion efficiency can be improved. Can be high.

本発明に係る積層熱電変換デバイスは、本発明の熱電変換デバイスを複数有し、複数の上記熱電変換デバイスが、上記第１の領域において、互いに接触している部分を有するので、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる。 The laminated thermoelectric conversion device according to the present invention has a plurality of thermoelectric conversion devices of the present invention, and since the plurality of the thermoelectric conversion devices have portions in contact with each other in the first region, a plurality of thermoelectric conversions are performed. Variations in temperature between materials can be suppressed, and thermoelectric conversion efficiency can be increased.

また、本発明に係る放熱構造体は、熱源と、本発明の熱電変換デバイスとを備え、上記熱源に対して、上記熱電変換デバイスが、上記第１の領域において接触しているので、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる。 Further, the heat radiating structure according to the present invention includes a heat source and a thermoelectric conversion device of the present invention, and the thermoelectric conversion device is in contact with the heat source in the first region, so that there are a plurality of heat radiation structures. The temperature variation among the thermoelectric conversion materials can be suppressed, and the thermoelectric conversion efficiency can be increased.

図１は、本発明の一実施形態に係る熱電変換デバイスの平面図である。FIG. 1 is a plan view of a thermoelectric conversion device according to an embodiment of the present invention. 図２は、本発明の一実施形態に係る熱電変換デバイスの略図的斜視図である。FIG. 2 is a schematic perspective view of a thermoelectric conversion device according to an embodiment of the present invention. 図３は、本発明の一実施形態に係る積層熱電変換デバイスの模式的正面図である。FIG. 3 is a schematic front view of the laminated thermoelectric conversion device according to the embodiment of the present invention. 図４は、本発明の一実施形態に係る放熱構造体の模式的正面図である。FIG. 4 is a schematic front view of the heat radiating structure according to the embodiment of the present invention.

以下、本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.

本発明に係る熱電変換デバイスは、基材と、少なくとも２つの第１の電極と、少なくとも１つの第２の電極と、少なくとも１つの第１の熱電変換材料と、少なくとも１つの第２の熱電変換材料とを備える。上記第１の電極、上記第２の電極、上記第１の熱電変換材料及び上記第２の熱電変換材料は、上記基材の上面上に配置されている。上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極とが、この順で接続されて熱電変換素子が構成されている。上記第１の電極に、上記第１の熱電変換材料及び上記第２の熱電変換材料が積層されている。上記第２の電極に、上記第１の熱電変換材料及び上記第２の熱電変換材料が積層されている。なお、本発明に係る熱電変換デバイスの使用時の方向性は特に限定されない。本明細書においては、上記基材の上記熱電変換素子が配置されている表面を、上面と呼ぶ。熱電変換デバイスの使用時には、基材の上面が上方に位置するとは限らない。 The thermoelectric conversion device according to the present invention includes a base material, at least two first electrodes, at least one second electrode, at least one first thermoelectric conversion material, and at least one second thermoelectric conversion. With materials. The first electrode, the second electrode, the first thermoelectric conversion material, and the second thermoelectric conversion material are arranged on the upper surface of the base material. The first electrode, the first thermoelectric conversion material, the second electrode, the second thermoelectric conversion material, and the first electrode are connected in this order to form a thermoelectric conversion element. It is configured. The first thermoelectric conversion material and the second thermoelectric conversion material are laminated on the first electrode. The first thermoelectric conversion material and the second thermoelectric conversion material are laminated on the second electrode. The directionality of the thermoelectric conversion device according to the present invention when used is not particularly limited. In the present specification, the surface on which the thermoelectric conversion element of the base material is arranged is referred to as an upper surface. When using a thermoelectric conversion device, the top surface of the substrate is not always located above.

上記第１の熱電変換材料及び上記第２の熱電変換材料のうち一方が、ｐ型熱電変換材料であり、他方がｎ型熱電変換材料である。上記第１の熱電変換材料がｎ型熱電変換材料であり、上記第２の熱電変換材料がｐ型熱電変換材料であってもよい。 One of the first thermoelectric conversion material and the second thermoelectric conversion material is a p-type thermoelectric conversion material, and the other is an n-type thermoelectric conversion material. The first thermoelectric conversion material may be an n-type thermoelectric conversion material, and the second thermoelectric conversion material may be a p-type thermoelectric conversion material.

本発明に係る熱電変換デバイスは、上記第１の電極、上記第２の電極、上記第１の熱電変換材料、上記第２の熱電変換材料及び上記熱電変換素子として、第１の電極Ａ、第２の電極Ａ、第１の熱電変換材料Ａ、第２の熱電変換材料Ａ及び熱電変換素子Ａを備える。 The thermoelectric conversion device according to the present invention includes the first electrode, the second electrode, the first thermoelectric conversion material, the second thermoelectric conversion material, and the first electrode A, the first thermoelectric conversion element as the thermoelectric conversion element. A second electrode A, a first thermoelectric conversion material A, a second thermoelectric conversion material A, and a thermoelectric conversion element A are provided.

上記熱電変換デバイスの出力を効果的に高める観点からは、本発明に係る熱電変換デバイスは、上記第１の電極、上記第２の電極、上記第１の熱電変換材料、上記第２の熱電変換材料及び上記熱電変換素子として、第１の電極Ｂ、第２の電極Ｂ、第１の熱電変換材料Ｂ、第２の熱電変換材料Ｂ及び熱電変換素子Ｂをさらに備えることが好ましい。 From the viewpoint of effectively increasing the output of the thermoelectric conversion device, the thermoelectric conversion device according to the present invention includes the first electrode, the second electrode, the first thermoelectric conversion material, and the second thermoelectric conversion. As the material and the thermoelectric conversion element, it is preferable to further include a first electrode B, a second electrode B, a first thermoelectric conversion material B, a second thermoelectric conversion material B, and a thermoelectric conversion element B.

上記基材は第１の折れ曲がり部を有する。上記基材は、上記第１の折れ曲がり部の一方側に第１の領域と、上記第１の折れ曲がり部の他方側に第２の領域とを有する。熱電変換素子Ａは、上記第１の領域及び上記第２の領域に配置されている。第１の電極Ａは上記第１の領域、又は、上記第１及び第２の領域に配置されている。第１の熱電変換材料Ａ、及び第２の熱電変換材料Ａは、上記第２の領域、又は、上記第１及び第２の領域に配置されている。第２の電極Ａは上記第２の領域に配置されている。 The base material has a first bent portion. The base material has a first region on one side of the first bent portion and a second region on the other side of the first bent portion. The thermoelectric conversion element A is arranged in the first region and the second region. The first electrode A is arranged in the first region or the first and second regions. The first thermoelectric conversion material A and the second thermoelectric conversion material A are arranged in the second region or the first and second regions. The second electrode A is arranged in the second region.

本明細書において、上記第１の折れ曲がり部により分けられた上記第１の領域及び上記第２の領域において配置されている熱電変換素子を、熱電変換素子Ａと呼ぶ。また、この熱電変換素子Ａを構成する上記第１の電極、上記第２の電極、上記第１の熱電変換材料及び上記第２の熱電変換材料をそれぞれ、第１の電極Ａ、第２の電極Ａ、第１の熱電変換材料Ａ及び第２の熱電変換材料Ａと呼ぶ。例えば、上記第１の電極Ａが上記第１の領域に配置されており、かつ上記第１の熱電変換材料Ａ及び上記第２の熱電変換材料Ａが上記第１の領域及び上記第２の領域に配置されていてもよい。上記第１の電極Ａが上記第１の領域及び上記第２の領域に配置されており、かつ上記第１の熱電変換材料Ａ及び上記第２の熱電変換材料Ａが上記第２の領域に配置されていてもよい。上記第１の電極Ａが上記第１の領域及び上記第２の領域に配置されており、かつ上記第１の熱電変換材料Ａ及び上記第２の熱電変換材料Ａが上記第１の領域及び上記第２の領域に配置されていてもよい。上記第１の電極Ａ、上記第１の熱電変換材料Ａ及び上記第２の熱電変換材料Ａは、これらのいずれの配置であってもよい。 In the present specification, the thermoelectric conversion element arranged in the first region and the second region separated by the first bent portion is referred to as a thermoelectric conversion element A. Further, the first electrode, the second electrode, the first thermoelectric conversion material, and the second thermoelectric conversion material constituting the thermoelectric conversion element A are combined with the first electrode A and the second electrode, respectively. A, referred to as a first thermoelectric conversion material A and a second thermoelectric conversion material A. For example, the first electrode A is arranged in the first region, and the first thermoelectric conversion material A and the second thermoelectric conversion material A are in the first region and the second region. It may be arranged in. The first electrode A is arranged in the first region and the second region, and the first thermoelectric conversion material A and the second thermoelectric conversion material A are arranged in the second region. It may have been done. The first electrode A is arranged in the first region and the second region, and the first thermoelectric conversion material A and the second thermoelectric conversion material A are in the first region and the second region. It may be arranged in the second region. The first electrode A, the first thermoelectric conversion material A, and the second thermoelectric conversion material A may have any of these arrangements.

熱電変換素子Ａを備える熱電変換デバイスにおいては、発電に際し、上記熱電変換デバイスは、上記第１の領域において、熱源に接触させることができる。上記熱電変換デバイスは、上記第２の領域において、熱源に接触させないようにすることができる。これにより、複数の第１の電極Ａが一様に、かつ安定的に加熱されるので、複数の第１の電極Ａ間における温度のばらつきを抑制することができる。さらに、上記熱電変換デバイスは、上記第１の折れ曲がり部を有するので、上記熱電変換デバイスの上記第１の領域は熱源に接触するが、上記第２の領域は熱源に接触しない。上記第２の領域全体から放熱することができるので、放熱性を高めることができる。第１の熱電変換材料Ａの第１の電極Ａ側と第２の電極Ａ側とにおける温度差及び第２の熱電変換材料Ａの第１の電極Ａ側と第２の電極Ａ側とにおける温度差を大きくすることができ、熱電変換効率を高くすることができる。 In the thermoelectric conversion device including the thermoelectric conversion element A, the thermoelectric conversion device can be brought into contact with a heat source in the first region during power generation. The thermoelectric conversion device can be kept out of contact with a heat source in the second region. As a result, the plurality of first electrodes A are heated uniformly and stably, so that the temperature variation among the plurality of first electrodes A can be suppressed. Further, since the thermoelectric conversion device has the first bent portion, the first region of the thermoelectric conversion device comes into contact with the heat source, but the second region does not come into contact with the heat source. Since heat can be dissipated from the entire second region, heat dissipation can be improved. The temperature difference between the first electrode A side and the second electrode A side of the first thermoelectric conversion material A and the temperature between the first electrode A side and the second electrode A side of the second thermoelectric conversion material A. The difference can be increased and the thermoelectric conversion efficiency can be increased.

上記熱電変換デバイスの出力を効果的に高め、かつ小型化する観点からは、上記基材が、第２の折れ曲がり部を有し、上記基材が、上記第１，第２の折れ曲がり部の間に上記第１の領域と、上記第１の折れ曲がり部の外側に上記第２の領域と、上記第２の折れ曲がり部の外側に第３の領域とを有し、熱電変換素子Ｂが、上記第１の領域及び上記第３の領域に配置されていることが好ましい。上記第１の領域及び上記第３の領域に配置された熱電変換素子Ｂは、第１の電極Ｂと、第１の熱電変換材料Ｂと、第２の電極Ｂと、第２の熱電変換材料Ｂと、第１の電極Ｂとが、この順で接続されて構成されている。第１の電極Ｂは第１の領域、又は、上記第１及び第３の領域に配置されている。第１の熱電変換材料Ｂ、及び第２の熱電変換材料Ｂは、上記第３の領域、又は、上記第１及び第３の領域に配置されている。第２の電極Ｂは第３の領域に配置されている。 From the viewpoint of effectively increasing the output of the thermoelectric conversion device and reducing the size, the base material has a second bent portion, and the base material is between the first and second bent portions. The thermoelectric conversion element B has a first region, a second region outside the first bent portion, and a third region outside the second bent portion. It is preferably arranged in the region 1 and the third region. The thermoelectric conversion element B arranged in the first region and the third region includes a first electrode B, a first thermoelectric conversion material B, a second electrode B, and a second thermoelectric conversion material. B and the first electrode B are connected in this order. The first electrode B is arranged in the first region or the first and third regions. The first thermoelectric conversion material B and the second thermoelectric conversion material B are arranged in the third region or the first and third regions. The second electrode B is arranged in the third region.

本明細書において、上記第２の折れ曲がり部により分けられた上記第１の領域及び上記第３の領域において配置されている熱電変換素子を、熱電変換素子Ｂと呼ぶ。また、この熱電変換素子Ｂを構成する上記第１の電極、上記第２の電極、上記第１の熱電変換材料及び上記第２の熱電変換材料をそれぞれ、第１の電極Ｂ、第２の電極Ｂ、第１の熱電変換材料Ｂ及び第２の熱電変換材料Ｂと呼ぶ。例えば、上記第１の電極Ｂが上記第１の領域に配置されており、かつ上記第１の熱電変換材料Ｂ及び上記第２の熱電変換材料Ｂが上記第１の領域及び上記第３の領域に配置されていてもよい。上記第１の電極Ｂが上記第１の領域及び上記第３の領域に配置されており、かつ上記第１の熱電変換材料Ｂ及び上記第２の熱電変換材料Ｂが上記第３の領域に配置されていてもよい。上記第１の電極Ｂが上記第１の領域及び上記第３の領域に配置されており、かつ上記第１の熱電変換材料Ｂ及び上記第２の熱電変換材料Ｂが上記第１の領域及び上記第３の領域に配置されていてもよい。上記第１の電極Ｂ、上記第１の熱電変換材料Ｂ及び上記第２の熱電変換材料Ｂは、これらのいずれの配置であってもよい。 In the present specification, the thermoelectric conversion element arranged in the first region and the third region separated by the second bent portion is referred to as a thermoelectric conversion element B. Further, the first electrode, the second electrode, the first thermoelectric conversion material, and the second thermoelectric conversion material constituting the thermoelectric conversion element B are combined with the first electrode B and the second electrode, respectively. B, referred to as a first thermoelectric conversion material B and a second thermoelectric conversion material B. For example, the first electrode B is arranged in the first region, and the first thermoelectric conversion material B and the second thermoelectric conversion material B are in the first region and the third region. It may be arranged in. The first electrode B is arranged in the first region and the third region, and the first thermoelectric conversion material B and the second thermoelectric conversion material B are arranged in the third region. It may have been done. The first electrode B is arranged in the first region and the third region, and the first thermoelectric conversion material B and the second thermoelectric conversion material B are in the first region and the third region. It may be arranged in the third region. The first electrode B, the first thermoelectric conversion material B, and the second thermoelectric conversion material B may have any of these arrangements.

熱電変換素子Ａ及び熱電変換素子Ｂを備える熱電変換デバイスにおいては、発電に際し、上記熱電変換デバイスは、上記第１の領域において、熱源に接触させることができる。上記熱電変換デバイスは、上記第２の領域及び上記第３の領域の双方において、熱源に接触させないようにすることができる。上記熱電変換デバイスが、上記第２の領域に加えて、熱源に接触しない上記第３の領域を有することにより、熱源に接触する部分の大面積化を招くことなく、上記熱電変換素子を複数配置することができる。従って、上記熱電変換デバイスの出力を効果的に高くすることができ、かつ小型化を図ることができる。 In the thermoelectric conversion device including the thermoelectric conversion element A and the thermoelectric conversion element B, the thermoelectric conversion device can be brought into contact with a heat source in the first region during power generation. The thermoelectric conversion device can be kept out of contact with a heat source in both the second region and the third region. Since the thermoelectric conversion device has the third region that does not come into contact with the heat source in addition to the second region, a plurality of the thermoelectric conversion elements are arranged without causing an increase in the area of the portion that comes into contact with the heat source. can do. Therefore, the output of the thermoelectric conversion device can be effectively increased and the size can be reduced.

上記第１の領域及び上記第２の領域に配置されている上記熱電変換素子Ａと、上記第１の領域及び上記第３の領域に配置されている上記熱電変換素子Ｂとは、電気的に接続されていてもよい。この場合には、例えば、上記第１の電極により、上記熱電変換素子Ａと上記熱電変換素子Ｂとが接続されていてもよい。上記熱電変換素子Ａと、上記熱電変換素子Ｂとは、電気的に接続されていなくてもよい。 The thermoelectric conversion element A arranged in the first region and the second region and the thermoelectric conversion element B arranged in the first region and the third region are electrically connected to each other. It may be connected. In this case, for example, the thermoelectric conversion element A and the thermoelectric conversion element B may be connected by the first electrode. The thermoelectric conversion element A and the thermoelectric conversion element B may not be electrically connected.

上記熱電変換デバイスを破損し難くする観点からは、上記第１の熱電変換材料及び上記第２の熱電変換材料が上記第１の領域に配置されていないことが好ましい。この場合には、上記第１の熱電変換材料及び上記第２の熱電変換材料が折れ曲がり部を有さないので、破損し難い。 From the viewpoint of making the thermoelectric conversion device less likely to be damaged, it is preferable that the first thermoelectric conversion material and the second thermoelectric conversion material are not arranged in the first region. In this case, since the first thermoelectric conversion material and the second thermoelectric conversion material do not have a bent portion, they are not easily damaged.

上記熱電変換デバイスの信頼性を高くする観点からは、上記熱電変換デバイスは、上記基材の上面上に、上記第１の熱電変換材料、上記第２の熱電変換材料、上記第１の電極及び上記第２の電極を覆うように配置された封止材を備えることが好ましい。上記熱電変換素子は、上記封止材により封止されていることが好ましい。 From the viewpoint of increasing the reliability of the thermoelectric conversion device, the thermoelectric conversion device has the first thermoelectric conversion material, the second thermoelectric conversion material, the first electrode and the above on the upper surface of the base material. It is preferable to provide a sealing material arranged so as to cover the second electrode. The thermoelectric conversion element is preferably sealed with the sealing material.

上記熱電変換デバイスの出力を効果的に高める観点からは、上記熱電変換デバイスは、上記第１の熱電変換材料又は上記第２の熱電変換材料を複数有することが好ましい。具体的には、本発明では複数の熱電変換材料間における温度のばらつきを抑制し、熱電変換効率を高めることができるので、上記熱電変換デバイスは、上記第２の電極を少なくとも２つ有し、上記第１の熱電変換材料を少なくとも２つ有することが好ましい。上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極とが、この順で接続されて上記熱電変換素子が構成されていることが好ましい。熱電変換素子Ａがこのような構造を有することが好ましく、熱電変換素子Ｂもこのような構造を有することが好ましい。 From the viewpoint of effectively increasing the output of the thermoelectric conversion device, it is preferable that the thermoelectric conversion device has a plurality of the first thermoelectric conversion material or the second thermoelectric conversion material. Specifically, in the present invention, the temperature variation among a plurality of thermoelectric conversion materials can be suppressed and the thermoelectric conversion efficiency can be increased. Therefore, the thermoelectric conversion device has at least two of the second electrodes. It is preferable to have at least two of the first thermoelectric conversion materials. The first electrode, the first thermoelectric conversion material, the second electrode, the second thermoelectric conversion material, the first electrode, the first thermoelectric conversion material, and the first It is preferable that the electrodes of 2 are connected in this order to form the thermoelectric conversion element. The thermoelectric conversion element A preferably has such a structure, and the thermoelectric conversion element B also preferably has such a structure.

また、本発明では複数の熱電変換材料間における温度のばらつきを抑制し、熱電変換効率を高めることができるので、上記第２の電極を少なくとも２つ有し、上記第１の熱電変換材料を少なくとも２つ有することに加え、上記熱電変換デバイスは、上記第１の電極を少なくとも３つ有し、上記第２の熱電変換材料を少なくとも２つ有することがより好ましい。上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極とが、この順で接続されて上記熱電変換素子が構成されていることがより好ましい。熱電変換素子Ａがこのような構造を有することが好ましく、熱電変換素子Ｂもこのような構造を有することが好ましい。 Further, in the present invention, since it is possible to suppress temperature variation among a plurality of thermoelectric conversion materials and increase the thermoelectric conversion efficiency, the present invention has at least two of the second electrodes and at least the first thermoelectric conversion material. In addition to having two, the thermoelectric conversion device more preferably has at least three of the first electrodes and at least two of the second thermoelectric conversion materials. The first electrode, the first thermoelectric conversion material, the second electrode, the second thermoelectric conversion material, the first electrode, the first thermoelectric conversion material, and the first It is more preferable that the electrode 2, the second thermoelectric conversion material, and the first electrode are connected in this order to form the thermoelectric conversion element. The thermoelectric conversion element A preferably has such a structure, and the thermoelectric conversion element B also preferably has such a structure.

さらに、本発明では複数の熱電変換材料間における温度のばらつきを抑制し、熱電変換効率を高めることができるので、上記熱電変換デバイスは、上記第１の電極を少なくとも３つ有し、上記第２の熱電変換材料を少なくとも２つ有することに加え、上記第２の電極を少なくとも３つ有し、上記第１の熱電変換材料を少なくとも３つ有することがさらに好ましい。上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極とが、この順で接続されて上記熱電変換素子が構成されていることがさらに好ましい。熱電変換素子Ａがこのような構造を有することが好ましく、熱電変換素子Ｂもこのような構造を有することが好ましい。 Further, in the present invention, the temperature variation among the plurality of thermoelectric conversion materials can be suppressed and the thermoelectric conversion efficiency can be increased. Therefore, the thermoelectric conversion device has at least three of the first electrodes and has the second electrode. In addition to having at least two thermoelectric conversion materials, it is more preferable to have at least three of the second electrodes and at least three of the first thermoelectric conversion materials. The first electrode, the first thermoelectric conversion material, the second electrode, the second thermoelectric conversion material, the first electrode, the first thermoelectric conversion material, and the first The second electrode, the second thermoelectric conversion material, the first electrode, the first thermoelectric conversion material, and the second electrode are connected in this order to form the thermoelectric conversion element. It is more preferable that the electrode is used. The thermoelectric conversion element A preferably has such a structure, and the thermoelectric conversion element B also preferably has such a structure.

上記熱電変換デバイスの配置の自由度を高くする観点からは、上記基材が柔軟性を有することが好ましい。この場合には、熱源の形状に応じて、上記熱電変換デバイスを変形させ易い。 From the viewpoint of increasing the degree of freedom in arranging the thermoelectric conversion device, it is preferable that the base material has flexibility. In this case, the thermoelectric conversion device is easily deformed according to the shape of the heat source.

上記第１の折れ曲がり部及び上記第２の折れ曲がり部では、曲線状に折れ曲がっていてもよく、所定の角度で折れ曲がっていてもよい。上記第１の折れ曲がり部と上記第２の折れ曲がり部とは、平行に配置されていることが好ましい。但し、上記第１の折れ曲がり部と上記第２の折れ曲がり部とは平行に配置されていなくてもよい。 The first bent portion and the second bent portion may be bent in a curved shape or may be bent at a predetermined angle. It is preferable that the first bent portion and the second bent portion are arranged in parallel. However, the first bent portion and the second bent portion may not be arranged in parallel.

上記熱電変換デバイスの配置の自由度をより一層高くする観点からは、上記熱電変換デバイスが、上記第２の電極を複数有し、かつ上記基材が、上記第２の領域に切り込み部を有し、上記切り込み部によって分けられた一方側に、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極との第１の接続部分が配置されており、上記切り込み部によって分けられた他方側に、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極との第２の接続部分が配置されていることが好ましい。熱電変換デバイスが第２の領域においてこのような構造を有することが好ましく、熱電変換デバイスが第３の領域においてこのような構造を有することが好ましい。上記基材が、上記第２の領域における隣り合う上記第２の電極間において、上記切り込み部を有することが好ましい。なお、上記第２の領域の上記第１，第２の接続部分は、第１，第２の接続部分Ａである。上記第３の領域の上記第１，第２の接続部分は、第１，第２の接続部分Ｂである。上記第２の領域の上記切り込み部は、切り込み部Ａである。上記第３の領域の上記切り込み部は、切り込み部Ｂである。 From the viewpoint of further increasing the degree of freedom in arranging the thermoelectric conversion device, the thermoelectric conversion device has a plurality of the second electrodes, and the base material has a notch in the second region. Then, on one side separated by the notch, the first electrode, the first thermoelectric conversion material, the second electrode, the second thermoelectric conversion material, and the first electrode The first electrode, the first thermoelectric conversion material, the second electrode, and the second electrode are arranged on the other side separated by the notch. It is preferable that the second connecting portion between the thermoelectric conversion material and the first electrode is arranged. The thermoelectric conversion device preferably has such a structure in the second region, and the thermoelectric conversion device preferably has such a structure in the third region. It is preferable that the base material has the cut portion between the adjacent second electrodes in the second region. The first and second connection portions of the second region are the first and second connection portions A. The first and second connection portions of the third region are the first and second connection portions B. The cut portion of the second region is a cut portion A. The cut portion of the third region is a cut portion B.

上記熱電変換デバイスは上記切り込み部を有する場合には、上記熱電変換デバイスをより一層変形させやすい。例えば、第１の領域の延びる方向（例えば長さ方向）において、熱電変換デバイスを湾曲させることができる（具体的には、図１における熱電変換デバイス１は、第１の領域の中央において手前側に、第１の領域の両端において奥側に湾曲させることができる）。例えば、柱状の熱源に上記第１の領域が螺旋状に接触するように、上記熱電変換デバイスを配置することもできる。上記切り込み部を有する熱電変換デバイスは、熱源が曲面状の表面を有する場合などに、好適に用いることができる。 When the thermoelectric conversion device has the cut portion, the thermoelectric conversion device is more easily deformed. For example, the thermoelectric conversion device can be curved in the extending direction (for example, the length direction) of the first region (specifically, the thermoelectric conversion device 1 in FIG. 1 is on the front side in the center of the first region. In addition, it can be curved inward at both ends of the first region). For example, the thermoelectric conversion device can be arranged so that the first region spirally contacts the columnar heat source. The thermoelectric conversion device having the cut portion can be suitably used when the heat source has a curved surface or the like.

上記第１の接続部分は複数の上記第２の電極を含んでいてもよい。具体的には、例えば、上記第１の接続部分が上記第２の電極を２つ含む場合には、上記第１の接続部分は、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極とがこの順で接続された部分を有する。例えば、上記第１の接続部分が上記第２の電極を３つ含む場合には、上記第１の接続部分は、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極と、上記第２の熱電変換材料と、上記第１の電極と、上記第１の熱電変換材料と、上記第２の電極とが、この順で接続された部分を含む。同様に、上記第２の接続部分も、複数の上記第２の電極を含んでいてもよい。 The first connecting portion may include a plurality of the second electrodes. Specifically, for example, when the first connecting portion includes two of the second electrodes, the first connecting portion includes the first electrode and the first thermoelectric conversion material. The second electrode, the second thermoelectric conversion material, the first electrode, the first thermoelectric conversion material, and the second electrode are connected in this order. For example, when the first connecting portion includes three of the second electrodes, the first connecting portion includes the first electrode, the first thermoelectric conversion material, and the second. The electrode, the second thermoelectric conversion material, the first electrode, the first thermoelectric conversion material, the second electrode, the second thermoelectric conversion material, and the first electrode. , The portion in which the first thermoelectric conversion material and the second electrode are connected in this order is included. Similarly, the second connecting portion may also include a plurality of the second electrodes.

上記第１の接続部分及び上記第２の接続部分が、それぞれ１つの第２の電極を含むことが好ましい。すなわち、上記基材が、上記第２の領域における全ての隣り合う上記第２の電極間において、上記切り込み部を有することが好ましい。この場合には、上記熱電変換デバイスをより一層変形させやすく、上記熱電変換デバイスの配置の自由度をより一層高くすることができる。 It is preferable that the first connecting portion and the second connecting portion each include one second electrode. That is, it is preferable that the base material has the cut portion between all the adjacent second electrodes in the second region. In this case, the thermoelectric conversion device can be more easily deformed, and the degree of freedom in arranging the thermoelectric conversion device can be further increased.

上記切り込み部は、隣り合う上記第１の熱電変換材料と上記第２の熱電変換材料とが上記第１の電極により電気的に接続されている限りにおいて、上記第１の領域に至っていてもよい。 The cut portion may reach the first region as long as the adjacent first thermoelectric conversion material and the second thermoelectric conversion material are electrically connected by the first electrode. ..

上記熱電変換デバイスが上記第２の折れ曲がり部及び上記第３の領域を有する場合において、上記熱電変換デバイスの配置の自由度をより一層高くする観点からは、上記第１の領域における上記切り込み部と同様に、上記基材が上記第３の領域に切り込み部を有することが好ましい。この場合には、上記熱電変換デバイスをより一層変形させやすい。 When the thermoelectric conversion device has the second bent portion and the third region, from the viewpoint of further increasing the degree of freedom in arranging the thermoelectric conversion device, the notch portion in the first region is used. Similarly, it is preferable that the base material has a notch in the third region. In this case, the thermoelectric conversion device is more easily deformed.

本発明に係る積層熱電変換デバイスは、上記熱電変換デバイスを複数有し、複数の上記熱電変換デバイスが、上記第１の領域において、互いに接触している部分を有する。発電に際し、上記複数の熱電変換デバイスが上記第１の領域において加熱される。これにより、上記複数の第１の電極が安定的に加熱されるので、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる。加えて、熱源に接触する部分の面積を変えずに、上記熱電変換素子をより一層多く配置することができるので、出力を効果的に高くすることができ、かつ小型化を図ることができる。 The laminated thermoelectric conversion device according to the present invention has a plurality of the thermoelectric conversion devices, and the plurality of the thermoelectric conversion devices have a portion in contact with each other in the first region. During power generation, the plurality of thermoelectric conversion devices are heated in the first region. As a result, since the plurality of first electrodes are stably heated, it is possible to suppress temperature variation among the plurality of thermoelectric conversion materials, and it is possible to increase the thermoelectric conversion efficiency. In addition, since the thermoelectric conversion elements can be arranged even more without changing the area of the portion in contact with the heat source, the output can be effectively increased and the size can be reduced.

なお、上記積層熱電変換デバイスにおいては、上記複数の熱電変換デバイスは上記第２の領域又は上記第３の領域において、互いに接触している部分を有していてもよい。 In the laminated thermoelectric conversion device, the plurality of thermoelectric conversion devices may have a portion in contact with each other in the second region or the third region.

上記積層熱電変換デバイスの熱電変換効率をより一層高くする観点からは、複数の上記熱電変換デバイスが、上記第２の領域及び上記第３の領域のそれぞれにおいて、互いに接触していない部分を有することが好ましい。この場合には、上記第２の領域及び上記第３の領域における放熱性を高めることができ、熱電変換効率を高くすることができる。 From the viewpoint of further increasing the thermoelectric conversion efficiency of the laminated thermoelectric conversion device, the plurality of the thermoelectric conversion devices have portions that are not in contact with each other in each of the second region and the third region. Is preferable. In this case, the heat dissipation in the second region and the third region can be enhanced, and the thermoelectric conversion efficiency can be enhanced.

上記積層熱電変換デバイスの熱電変換効率をより一層高くする観点からは、上記熱電変換デバイスにおいて、上記第１の熱電変換材料及び上記第２の熱電変換材料が上記第１の領域に配置されていないことが好ましい。この場合には、上記複数の熱電変換デバイスが上記第１の領域で互いに接触している部分において、上記第１の電極と上記基材との間に、上記第１の熱電変換材料及び上記第２の熱電変換材料が介在しない。発電に際し、上記複数の熱電変換デバイスが上記第１の領域において互いに接触している部分において、上記第１の電極が効率的に加熱されるので、熱電変換効率を効果的に高くすることができる。 From the viewpoint of further increasing the thermoelectric conversion efficiency of the laminated thermoelectric conversion device, the first thermoelectric conversion material and the second thermoelectric conversion material are not arranged in the first region in the thermoelectric conversion device. Is preferable. In this case, in the portion where the plurality of thermoelectric conversion devices are in contact with each other in the first region, the first thermoelectric conversion material and the first thermoelectric conversion material are placed between the first electrode and the base material. The thermoelectric conversion material of 2 does not intervene. During power generation, the first electrode is efficiently heated in the portion where the plurality of thermoelectric conversion devices are in contact with each other in the first region, so that the thermoelectric conversion efficiency can be effectively increased. ..

本発明に係る放熱構造体は、熱源と、上記熱電変換デバイスとを備え、上記熱源に対して、上記熱電変換デバイスが、上記第１の領域において接触している。上記複数の第１の電極が安定的に加熱されるので、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる。 The heat radiating structure according to the present invention includes a heat source and the thermoelectric conversion device, and the thermoelectric conversion device is in contact with the heat source in the first region. Since the plurality of first electrodes are stably heated, it is possible to suppress temperature variations among the plurality of thermoelectric conversion materials, and it is possible to increase the thermoelectric conversion efficiency.

上記放熱構造体の出力を効果的に高くする観点からは、上記放熱構造体が熱源と、上記積層熱電変換デバイスとを備え、上記熱源に対して、上記積層熱電変換デバイスの最も外側の上記熱電変換デバイスが、上記第１の領域において接触していることが好ましい。この場合には、上記複数の第１の電極が安定的に加熱されるので、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる。加えて、熱源に接触する部分の面積を変えずに、上記熱電変換素子をより一層多く配置することができるので、出力を効果的に高くすることができ、かつ小型化を図ることができる。 From the viewpoint of effectively increasing the output of the heat radiating structure, the heat radiating structure includes a heat source and a laminated thermoelectric conversion device, and the outermost thermoelectric of the laminated thermoelectric conversion device with respect to the heat source. It is preferable that the conversion device is in contact with the first region. In this case, since the plurality of first electrodes are stably heated, it is possible to suppress temperature variation among the plurality of thermoelectric conversion materials, and it is possible to increase the thermoelectric conversion efficiency. In addition, since the thermoelectric conversion elements can be arranged even more without changing the area of the portion in contact with the heat source, the output can be effectively increased and the size can be reduced.

以下、図面を参照しつつ、本発明の具体的な実施形態を説明する。 Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

図１は、本発明の一実施形態に係る熱電変換デバイスの平面図である。図２は、図１に示す一実施形態に係る熱電変換デバイスの略図的斜視図である。 FIG. 1 is a plan view of a thermoelectric conversion device according to an embodiment of the present invention. FIG. 2 is a schematic perspective view of the thermoelectric conversion device according to the embodiment shown in FIG.

なお、実施形態において参照する図面は、模式的に記載されており、図面に描画された物体の寸法の比率などは、現実の物体の寸法の比率などとは異なる場合がある。具体的な物体の寸法の比率などは、以下の説明を参酌して判断されるべきである。 The drawings referred to in the embodiments are schematically described, and the ratio of the dimensions of the objects drawn in the drawings may differ from the ratio of the dimensions of the actual object. The specific ratio of the dimensions of the object should be judged in consideration of the following explanation.

図１及び図２に示す熱電変換デバイス１は、柔軟性を有する基材２を備える。基材２は、第１の折れ曲がり部２ａと第２の折れ曲がり部２ｂとを有する。なお、図１中においては、破線により第１，第２の折れ曲がり部２ａ，２ｂを示す。基材２は、第１，第２の折れ曲がり部２ａ，２ｂの間に第１の領域Ｃと、第１の折れ曲がり部２ａの外側に第２の領域Ｄと、第２の折れ曲がり部２ｂの外側に第３の領域Ｅとを有する。基材２の材料として、例えば、樹脂などを用いることができる。 The thermoelectric conversion device 1 shown in FIGS. 1 and 2 includes a flexible base material 2. The base material 2 has a first bent portion 2a and a second bent portion 2b. In FIG. 1, the first and second bent portions 2a and 2b are shown by broken lines. The base material 2 has a first region C between the first and second bent portions 2a and 2b, a second region D outside the first bent portion 2a, and an outside of the second bent portion 2b. Has a third region E and the like. As the material of the base material 2, for example, a resin or the like can be used.

図１に示すように、熱電変換デバイス１は、基材２の第１の領域Ｃ及び第２の領域Ｄにおける上面上に形成された熱電変換素子３Ａと、基材２の第１の領域Ｃ及び第３の領域Ｅにおける上面上に形成された熱電変換素子３Ｂとを備える。熱電変換素子３Ａは、複数の熱電変換素子３Ａ部分が接続されて構成されている。熱電変換素子３Ａ部分は、２つの第１の電極４ａと、１つの第２の電極４ｂと、第１の熱電変換材料５と、第２の熱電変換材料６とを有する。熱電変換素子３Ａ部分は、第１の電極４ａ、第１の熱電変換材料５、第２の電極４ｂ、第２の熱電変換材料６、第１の電極４ａが、この順で接続されて構成されている。なお、熱電変換素子は、少なくとも１つの熱電変換素子部分を有していればよい。 As shown in FIG. 1, the thermoelectric conversion device 1 includes a thermoelectric conversion element 3A formed on the upper surface of the first region C and the second region D of the base material 2 and a first region C of the base material 2. And a thermoelectric conversion element 3B formed on the upper surface in the third region E. The thermoelectric conversion element 3A is configured by connecting a plurality of thermoelectric conversion element 3A portions. The thermoelectric conversion element 3A portion has two first electrodes 4a, one second electrode 4b, a first thermoelectric conversion material 5, and a second thermoelectric conversion material 6. The thermoelectric conversion element 3A portion is configured by connecting the first electrode 4a, the first thermoelectric conversion material 5, the second electrode 4b, the second thermoelectric conversion material 6, and the first electrode 4a in this order. ing. The thermoelectric conversion element may have at least one thermoelectric conversion element portion.

本実施形態では、第１の電極４ａと第２の電極４ｂとに接続されている第１の熱電変換材料５の延びる方向、及び、第１の電極４ａと第２の電極４ｂとに接続されている第２の熱電変換材料６の延びる方向とは平行である。なお、第１の電極と第２の電極とに接続されている第１の熱電変換材料の延びる方向、及び、第１の電極と第２の電極とに接続されている第２の熱電変換材料の延びる方向は平行ではなくてもよい。 In the present embodiment, the extending direction of the first thermoelectric conversion material 5 connected to the first electrode 4a and the second electrode 4b, and connected to the first electrode 4a and the second electrode 4b. It is parallel to the extending direction of the second thermoelectric conversion material 6. The extending direction of the first thermoelectric conversion material connected to the first electrode and the second electrode, and the second thermoelectric conversion material connected to the first electrode and the second electrode. The extending directions of are not necessarily parallel.

本実施形態では、第１の熱電変換材料５はｐ型熱電変換材料であり、第２の熱電変換材料６はｎ型熱電変換材料である。 In the present embodiment, the first thermoelectric conversion material 5 is a p-type thermoelectric conversion material, and the second thermoelectric conversion material 6 is an n-type thermoelectric conversion material.

複数の熱電変換素子３Ａ部分は、第１の電極４ａと第２の電極４ｂとに接続されている第１の熱電変換材料５の延びる方向、及び、第１の電極４ａと第２の電極４ｂとに接続されている第２の熱電変換材料６の延びる方向のそれぞれと直交する方向に、並んで配置されている。各熱電変換素子３Ａ部分の１つの第１の電極４ａは、隣接する熱電変換素子３Ａ部分の１つの第１の電極４ａと共通の電極である。すなわち、第２の熱電変換材料６が接続された第１の電極４ａには第１の熱電変換材料５が接続されており、該第１の熱電変換材料５には、さらに第２の電極４ｂが接続されている。２つ以上の熱電変換素子部分が連なっていてもよく、３つ以上の熱電変換素子部分が連なっていてもよい。 The plurality of thermoelectric conversion element 3A portions are formed in the extending direction of the first thermoelectric conversion material 5 connected to the first electrode 4a and the second electrode 4b, and the first electrode 4a and the second electrode 4b. The second thermoelectric conversion material 6 connected to and is arranged side by side in the direction orthogonal to each of the extending directions. One first electrode 4a of each thermoelectric conversion element 3A portion is an electrode common to one first electrode 4a of the adjacent thermoelectric conversion element 3A portion. That is, the first thermoelectric conversion material 5 is connected to the first electrode 4a to which the second thermoelectric conversion material 6 is connected, and the second electrode 4b is further connected to the first thermoelectric conversion material 5. Is connected. Two or more thermoelectric conversion element portions may be connected, or three or more thermoelectric conversion element portions may be connected.

同様に、熱電変換素子３Ｂも、複数の熱電変換素子３Ｂ部分が接続されて構成されている。熱電変換素子３Ｂ部分は、第１の電極４ａ、第１の熱電変換材料５、第２の電極４ｂ、第２の熱電変換材料６、第１の電極４ａが、この順で接続されて構成されている。複数の熱電変換素子３Ｂは、複数の熱電変換素子３Ａと同様に並んで配置されている。熱電変換素子３Ａと熱電変換材料３Ｂとは、電気的に接続されている。本実施形態では、熱電変換素子３Ａの第２の熱電変換材料６と熱電変換素子３Ｂの第１の熱電変換材料５とが、第１の電極４ａにより電気的に接続されている。 Similarly, the thermoelectric conversion element 3B is also configured by connecting a plurality of thermoelectric conversion element 3B portions. The thermoelectric conversion element 3B portion is configured by connecting the first electrode 4a, the first thermoelectric conversion material 5, the second electrode 4b, the second thermoelectric conversion material 6, and the first electrode 4a in this order. ing. The plurality of thermoelectric conversion elements 3B are arranged side by side in the same manner as the plurality of thermoelectric conversion elements 3A. The thermoelectric conversion element 3A and the thermoelectric conversion material 3B are electrically connected. In the present embodiment, the second thermoelectric conversion material 6 of the thermoelectric conversion element 3A and the first thermoelectric conversion material 5 of the thermoelectric conversion element 3B are electrically connected by the first electrode 4a.

基材２は、第２の領域Ｄに複数の切り込み部２ｃを有する。切り込み部２ｃによって分けられた一方側に、第１の接続部分７ａが配置されており、切り込み部２ｃによって分けられた他方側に、第２の接続部分７ｂが配置されている。本実施形態では、第１の接続部分７ａは１つの熱電変換素子３Ａ部分を含み、第２の接続部分７ｂは１つの熱電変換素子３Ａ部分を含む。第１の接続部分７ａと第２の接続部分７ｂとが交互に並んで配置されている。 The base material 2 has a plurality of notches 2c in the second region D. The first connecting portion 7a is arranged on one side separated by the notch 2c, and the second connecting portion 7b is arranged on the other side separated by the notch 2c. In the present embodiment, the first connection portion 7a includes one thermoelectric conversion element 3A portion, and the second connection portion 7b includes one thermoelectric conversion element 3A portion. The first connecting portion 7a and the second connecting portion 7b are arranged alternately side by side.

基材２は、第３の領域Ｅに複数の切り込み部２ｃを有する。第３の領域Ｅにおいても、第２の領域Ｄと同様に第１の接続部分７ａ及び第２の接続部分７ｂが配置されている。 The base material 2 has a plurality of notches 2c in the third region E. In the third region E as well, the first connection portion 7a and the second connection portion 7b are arranged as in the second region D.

発電に際し、熱電変換デバイス１は、第１の領域Ｃにおいて、熱源に接触する。これにより、複数の第１の電極４ａが一様に、かつ安定的に加熱されるので、複数の第１の電極４ａ間における温度のばらつきを抑制することができる。さらに、図２に示すように、熱電変換デバイス１は、第１，第２の折れ曲がり部２ａ，２ｂを有するので、第１の領域Ｃは熱源に接触するが、第２の領域Ｄ及び第３の領域Ｅは熱源に接触しないので、第２の領域Ｄ及び第３の領域Ｅ全体から放熱することができ、放熱性を高めることができる。従って、熱電変換効率を高くすることができる。 During power generation, the thermoelectric conversion device 1 comes into contact with a heat source in the first region C. As a result, the plurality of first electrodes 4a are heated uniformly and stably, so that temperature variation among the plurality of first electrodes 4a can be suppressed. Further, as shown in FIG. 2, since the thermoelectric conversion device 1 has the first and second bent portions 2a and 2b, the first region C comes into contact with the heat source, but the second region D and the third region D and the third region C. Since the region E does not come into contact with the heat source, heat can be dissipated from the entire second region D and the third region E, and the heat dissipation can be improved. Therefore, the thermoelectric conversion efficiency can be increased.

熱電変換デバイス１の基材２は柔軟性を有し、かつ切り込み部２ｃを有するため、熱源が曲面等を有する場合に、熱電変換デバイス１を変形させやすく、熱電変換デバイス１の配置の自由度を高くすることができる。 Since the base material 2 of the thermoelectric conversion device 1 has flexibility and has a notch 2c, it is easy to deform the thermoelectric conversion device 1 when the heat source has a curved surface or the like, and the degree of freedom of arrangement of the thermoelectric conversion device 1 is high. Can be raised.

図３は、本発明の一実施形態に係る積層熱電変換デバイスの模式的正面図である。 FIG. 3 is a schematic front view of the laminated thermoelectric conversion device according to the embodiment of the present invention.

図３に示す積層熱電変換デバイス１０は、図１に示す熱電変換デバイス１を複数有する。積層熱電変換デバイス１０は、複数の熱電変換デバイス１が、第１の領域Ｃにおいて、互いに接触している部分を有する。 The laminated thermoelectric conversion device 10 shown in FIG. 3 has a plurality of thermoelectric conversion devices 1 shown in FIG. The laminated thermoelectric conversion device 10 has a portion in which a plurality of thermoelectric conversion devices 1 are in contact with each other in the first region C.

発電に際し、複数の熱電変換デバイス１が第１の領域Ｃにおいて加熱される。これにより、複数の第１の電極が安定的に加熱されるので、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる。加えて、熱源に接触する部分の面積を変えずに、熱電変換素子をより一層多く配置することができるので、出力を効果的に高くすることができ、かつ小型化を図ることができる。 During power generation, the plurality of thermoelectric conversion devices 1 are heated in the first region C. As a result, since the plurality of first electrodes are stably heated, it is possible to suppress temperature variations among the plurality of thermoelectric conversion materials, and it is possible to increase the thermoelectric conversion efficiency. In addition, since more thermoelectric conversion elements can be arranged without changing the area of the portion in contact with the heat source, the output can be effectively increased and the size can be reduced.

本実施形態では、積層されている複数の熱電変換デバイス１における第１，第２の折れ曲がり部における折れ曲がり角度が異なる。具体的には、熱電変換デバイス１の積層方向の一方側から他方側に向けて、折れ曲がり角度が次第に大きくなっている。積層されている熱電変換デバイス１のうち一方の熱電変換デバイス１の第１の領域Ｃに対する第２，第３の領域Ｄ，Ｅの傾斜角度と、積層されている熱電変換デバイス１のうち他方の熱電変換デバイス１の第１の領域Ｃに対する第２，第３の領域Ｄ，Ｅの傾斜角度とが異なる。これにより、複数の熱電変換デバイス１は、第２の領域Ｄ及び第３の領域Ｅのそれぞれにおいて、互いに接触していない部分を有するので、複数の熱電変換デバイス１の第２，第３の領域Ｄ，Ｅにおける放熱性を高めることができる。従って、熱電変換効率をより一層高くすることができる。 In the present embodiment, the bending angles at the first and second bending portions of the plurality of stacked thermoelectric conversion devices 1 are different. Specifically, the bending angle gradually increases from one side to the other side in the stacking direction of the thermoelectric conversion device 1. The tilt angle of the second and third regions D and E with respect to the first region C of one of the stacked thermoelectric conversion devices 1 and the other of the stacked thermoelectric conversion devices 1. The inclination angles of the second and third regions D and E with respect to the first region C of the thermoelectric conversion device 1 are different. As a result, since the plurality of thermoelectric conversion devices 1 have portions that are not in contact with each other in each of the second region D and the third region E, the second and third regions of the plurality of thermoelectric conversion devices 1 The heat dissipation in D and E can be improved. Therefore, the thermoelectric conversion efficiency can be further increased.

図４は、本発明の一実施形態に係る放熱構造体の模式的正面図である。 FIG. 4 is a schematic front view of the heat radiating structure according to the embodiment of the present invention.

図４に示す放熱構造体２０は、熱源２２と、図３に示す積層熱電変換デバイス１０とを備える。熱源２２に対して、積層熱電変換デバイス１０の最も外側の熱電変換デバイス１が、第１の領域において接触している。 The heat radiating structure 20 shown in FIG. 4 includes a heat source 22 and a laminated thermoelectric conversion device 10 shown in FIG. The outermost thermoelectric conversion device 1 of the laminated thermoelectric conversion device 10 is in contact with the heat source 22 in the first region.

熱源２２の形状は、特に限定されず、平板状であってもよく、柱状であってもよい。熱源２２の表面形状は、特に限定されず、平面状であってもよく、曲面状であってもよい。 The shape of the heat source 22 is not particularly limited, and may be flat or columnar. The surface shape of the heat source 22 is not particularly limited, and may be flat or curved.

放熱構造体２０では、積層熱電変換デバイス１０の複数の第１の電極が安定的に加熱されるので、複数の熱電変換材料間における温度のばらつきを抑制することができ、熱電変換効率を高くすることができる。加えて、熱源２２に接触する部分の面積を変えずに、熱電変換素子をより一層多く配置することができるので、出力を効果的に高くすることができ、かつ小型化を図ることができる。 In the heat radiating structure 20, since the plurality of first electrodes of the laminated thermoelectric conversion device 10 are stably heated, it is possible to suppress the temperature variation among the plurality of thermoelectric conversion materials and increase the thermoelectric conversion efficiency. be able to. In addition, since more thermoelectric conversion elements can be arranged without changing the area of the portion in contact with the heat source 22, the output can be effectively increased and the size can be reduced.

１…熱電変換デバイス
２…基材
２ａ，２ｂ…第１，第２の折れ曲がり部
２ｃ…切り込み部
３Ａ，３Ｂ…熱電変換素子
４ａ，４ｂ…第１，第２の電極
５，６…第１，第２の熱電変換材料
７ａ，７ｂ…第１，第２の接続部分
１０…積層熱電変換デバイス
２０…放熱構造体
２２…熱源 1 ... Thermoelectric conversion device 2 ... Base material 2a, 2b ... First and second bent portions 2c ... Notches 3A, 3B ... Thermoelectric conversion elements 4a, 4b ... First, second electrodes 5, 6 ... First 1, Second thermoelectric conversion materials 7a, 7b ... First and second connection portions 10 ... Laminated thermoelectric conversion device 20 ... Heat dissipation structure 22 ... Heat source

Claims (6)

熱電変換デバイスを複数有し、
前記熱電変換デバイスは、
基材と、
前記基材の上面上に配置された少なくとも２つの第１の電極Ａと、
前記基材の上面上に配置された少なくとも１つの第２の電極Ａと、
前記基材の上面上に配置された少なくとも１つの第１の熱電変換材料Ａと、
前記基材の上面上に配置された少なくとも１つの第２の熱電変換材料Ａと、
前記基材の上面上に配置された少なくとも２つの第１の電極Ｂと、
前記基材の上面上に配置された少なくとも１つの第２の電極Ｂと、
前記基材の上面上に配置された少なくとも１つの第１の熱電変換材料Ｂと、
前記基材の上面上に配置された少なくとも１つの第２の熱電変換材料Ｂとを備え、
前記熱電変換デバイスにおいて、前記第１の電極Ａと、前記第１の熱電変換材料Ａと、前記第２の電極Ａと、前記第２の熱電変換材料Ａと、前記第１の電極Ａとが、この順で接続されて熱電変換素子Ａが構成されており、
前記基材が、第１の折れ曲がり部を有し、
前記基材が、前記第１の折れ曲がり部の一方側に第１の領域と、前記第１の折れ曲がり部の他方側に第２の領域とを有し、
前記熱電変換素子Ａが、前記第１の領域から前記第２の領域にかけて配置されており、
前記第１の電極Ａが、前記第１の領域に配置されているか、又は、前記第１の領域から前記第２の領域にかけて配置されており、
前記第１の熱電変換材料Ａ、及び前記第２の熱電変換材料Ａがそれぞれ、前記第２の領域に配置されているか、又は、前記第１の領域から前記第２の領域にかけて配置されており、
前記第２の電極Ａが、前記第２の領域に配置されており、
前記熱電変換デバイスにおいて、前記第１の電極Ｂと、前記第１の熱電変換材料Ｂと、前記第２の電極Ｂと、前記第２の熱電変換材料Ｂと、前記第１の電極Ｂとが、この順で接続されて熱電変換素子Ｂが構成されており、
前記基材が、第２の折れ曲がり部を有し、
前記基材が、前記第１，第２の折れ曲がり部の間に前記第１の領域と、前記第１の折れ曲がり部の外側に前記第２の領域と、前記第２の折れ曲がり部の外側に第３の領域とを有し、
前記熱電変換素子Ｂが、前記第１の領域及び前記第３の領域に配置されており、
前記第１の電極Ｂが、前記第１の領域、又は、前記第１及び第３の領域に配置されており、前記第１の熱電変換材料Ｂ、及び前記第２の熱電変換材料Ｂが前記第３の領域、又は、前記第１及び第３の領域に配置されており、前記第２の電極Ｂが、前記第３の領域に配置されており、
複数の前記熱電変換デバイスが、前記第２の領域及び前記第３の領域のそれぞれにおいて、互いに接触していない部分を有する、積層熱電変換デバイス。 Has multiple thermoelectric conversion devices
The thermoelectric conversion device is
With the base material
With at least two first electrodes A arranged on the upper surface of the base material,
With at least one second electrode A arranged on the upper surface of the base material,
With at least one first thermoelectric conversion material A arranged on the upper surface of the base material,
With at least one second thermoelectric conversion material A disposed on the upper surface of the base material ,
With at least two first electrodes B disposed on the upper surface of the substrate,
With at least one second electrode B arranged on the upper surface of the base material,
With at least one first thermoelectric conversion material B disposed on the upper surface of the base material,
It comprises at least one second thermoelectric conversion material B disposed on the upper surface of the substrate .
In the thermoelectric conversion device, the first electrode A, the first thermoelectric conversion material A, the second electrode A, the second thermoelectric conversion material A, and the first electrode A are , The thermoelectric conversion element A is configured by connecting in this order.
The base material has a first bent portion and has a first bent portion.
The base material has a first region on one side of the first bent portion and a second region on the other side of the first bent portion.
The thermoelectric conversion element A is arranged from the first region to the second region.
The first electrode A is arranged in the first region, or is arranged from the first region to the second region.
The first thermoelectric conversion material A and the second thermoelectric conversion material A are respectively arranged in the second region, or are arranged from the first region to the second region. ,
The second electrode A is arranged in the second region, and the second electrode A is arranged in the second region .
In the thermoelectric conversion device, the first electrode B, the first thermoelectric conversion material B, the second electrode B, the second thermoelectric conversion material B, and the first electrode B are , The thermoelectric conversion element B is configured by connecting in this order.
The base material has a second bend and has a second bend.
The base material has the first region between the first and second bent portions, the second region outside the first bent portion, and the second outside the second bent portion. Has 3 regions
The thermoelectric conversion element B is arranged in the first region and the third region.
The first electrode B is arranged in the first region or the first and third regions, and the first thermoelectric conversion material B and the second thermoelectric conversion material B are said. The second electrode B is arranged in the third region or the first and third regions, and the second electrode B is arranged in the third region.
A plurality of the thermoelectric conversion device, the second region and the third in each region has a portion not in contact with each other, the laminated thermoelectric conversion device. 前記熱電変換素子Ａと前記熱電変換素子Ｂとが電気的に接続されている、請求項１に記載の積層熱電変換デバイス。 The laminated thermoelectric conversion device according to claim 1 , wherein the thermoelectric conversion element A and the thermoelectric conversion element B are electrically connected to each other. 前記熱電変換デバイスが、前記第２の電極Ａを少なくとも２つ有し、
前記熱電変換デバイスが、前記第１の熱電変換材料Ａを少なくとも２つ有し、
前記熱電変換デバイスにおいて、前記第１の電極Ａと、前記第１の熱電変換材料Ａと、前記第２の電極Ａと、前記第２の熱電変換材料Ａと、前記第１の電極Ａと、前記第１の熱電変換材料Ａと、前記第２の電極Ａとが、この順で接続されて前記熱電変換素子Ａが構成されている、請求項１又は２に記載の積層熱電変換デバイス。 The thermoelectric conversion device has at least two of the second electrodes A.
The thermoelectric conversion device has at least two of the first thermoelectric conversion materials A.
In the thermoelectric conversion device, the first electrode A, the first thermoelectric conversion material A, the second electrode A, the second thermoelectric conversion material A, the first electrode A, and the like. The laminated thermoelectric conversion device according to claim 1 or 2 , wherein the first thermoelectric conversion material A and the second electrode A are connected in this order to form the thermoelectric conversion element A. 発電に際し、
積層熱電変換デバイスの最も外側の前記熱電変換デバイスの前記第１の領域が、熱源に接触する領域であり、
積層熱電変換デバイスの最も外側の前記熱電変換デバイスの前記第２の領域が、熱源に接触しない領域である、請求項１〜３のいずれか１項に記載の積層熱電変換デバイス。 When generating electricity
The first region of the thermoelectric conversion device on the outermost side of the laminated thermoelectric conversion device is a region in contact with a heat source.
The outermost of said second region of the thermoelectric conversion device of the laminated thermoelectric conversion device, an area that does not contact the heat source, the thermoelectric conversion device stack according to any one of claims 1-3. 前記第１の折れ曲がり部が、曲線状に折れ曲がっていない、請求項１〜４のいずれか１項に記載の積層熱電変換デバイス。 The laminated thermoelectric conversion device according to any one of claims 1 to 4 , wherein the first bent portion is not bent in a curved shape. 熱源と、
請求項１〜５のいずれか１項に記載の積層熱電変換デバイスとを備え、
前記熱源に対して、前記積層熱電変換デバイスの最も外側の前記熱電変換デバイスが、前記第１の領域において接触している、放熱構造体。 Heat source and
The laminated thermoelectric conversion device according to any one of claims 1 to 5 is provided.
A heat radiating structure in which the outermost thermoelectric conversion device of the laminated thermoelectric conversion device is in contact with the heat source in the first region.
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