JP2014239160A5

JP2014239160A5 -

Info

Publication number: JP2014239160A5
Application number: JP2013121095A
Authority: JP
Filing date: 2013-06-07
Publication date: 2016-04-21
Anticipated expiration: 2033-06-07

Claims

熱を電気に変換する熱電変換部と、
前記熱電変換部を囲う絶縁体と、
を備え、
前記熱電変換部の内部に、熱膨張緩和層を有する、熱電変換素子。 A thermoelectric converter that converts heat into electricity;
An insulator surrounding the thermoelectric converter;
With
The thermoelectric conversion element which has a thermal expansion relaxation layer inside the said thermoelectric conversion part.

前記熱膨張緩和層は、空間を形成する内壁と、前記内壁の少なくとも一部に形成された内壁層と、を備え、
前記内壁層は、前記熱電変換部を構成する材料より延性が大きい材料で形成された、請求項１に記載の熱電変換素子。 The thermal expansion relaxation layer includes an inner wall forming a space, and an inner wall layer formed on at least a part of the inner wall,
The thermoelectric conversion element according to claim 1, wherein the inner wall layer is formed of a material having a higher ductility than a material constituting the thermoelectric conversion unit.

前記内壁層は、前記内壁の端部に形成された、請求項２に記載の熱電変換素子。 The thermoelectric conversion element according to claim 2, wherein the inner wall layer is formed at an end of the inner wall.

前記内壁層は、前記熱電変換部を構成する材料の成分から形成された純金属相を母相として有する、請求項２又は３に記載の熱電変換素子。 The thermoelectric conversion element according to claim 2 or 3, wherein the inner wall layer has a pure metal phase formed from a component of a material constituting the thermoelectric conversion portion as a parent phase.

前記内壁層は、前記熱電変換部を構成する材料の成分から形成された固溶体相を母相として有する、請求項２又は３に記載の熱電変換素子。 The thermoelectric conversion element according to claim 2 or 3, wherein the inner wall layer has a solid solution phase formed from a component of a material constituting the thermoelectric conversion portion as a parent phase.

前記熱電変換部は、前記絶縁体より大きい熱膨張率を有する材料で形成された、請求項１〜５のいずれか一項に記載の熱電変換素子。 The said thermoelectric conversion part is a thermoelectric conversion element as described in any one of Claims 1-5 formed with the material which has a thermal expansion coefficient larger than the said insulator.

前記熱膨張緩和層は、前記熱電変換部を流れる電流の方向に向かって延在する、隙間状の細長い層である、請求項１〜６のいずれか一項に記載の熱電変換素子。 The thermoelectric conversion element according to claim 1, wherein the thermal expansion relaxation layer is a gap-like elongated layer extending in a direction of a current flowing through the thermoelectric conversion unit.

前記熱膨張緩和層の延在方向と前記熱電変換部を流れる前記電流の方向とで成す角度が±３０°以内の範囲である、請求項７に記載の熱電変換素子。 The thermoelectric conversion element according to claim 7, wherein an angle formed by an extending direction of the thermal expansion relaxation layer and a direction of the current flowing through the thermoelectric conversion unit is within a range of ± 30 °.

前記熱電変換部は、Ｂｉ−Ｔｅ系材料を含む、請求項１〜８のいずれか一項に記載の熱電変換素子。 The said thermoelectric conversion part is a thermoelectric conversion element as described in any one of Claims 1-8 containing Bi-Te type material.

前記熱電変換部は、Ｂｉ−Ｔｅ系材料を含み、
前記内壁層は、Ｔｅを主成分とする相を母相として含む、請求項２に記載の熱電変換素子。 The thermoelectric conversion part includes a Bi-Te-based material,
The thermoelectric conversion element according to claim 2, wherein the inner wall layer includes a phase mainly composed of Te as a parent phase.

前記内壁層に含まれるＴｅ濃度は、９０ｗｔ％以上である、請求項１０に記載の熱電変換素子。 The thermoelectric conversion element according to claim 10, wherein a Te concentration contained in the inner wall layer is 90 wt% or more.

熱を電気に変換する熱電変換部と、前記熱電変換部を囲う絶縁体とを有し、前記熱電変換部の内部に熱膨張緩和層を含む、複数の熱電変換素子と、
前記複数の熱電変換素子をそれぞれ電気的に接続する複数の電極と、
前記複数の熱電変換素子と前記複数の電極を挟むように対向して配置される第１の基板及び第２の基板と、
を備えた、熱電変換モジュール。 A thermoelectric converter for converting heat into electricity, and an insulator surrounding the thermoelectric conversion portion, a thermal expansion relieving layer inside the thermoelectric conversion unit, and a plurality of thermoelectric conversion elements,
A plurality of electrodes electrically connecting the plurality of thermoelectric conversion elements, and
A first substrate and a second substrate disposed to face each other so as to sandwich the plurality of thermoelectric conversion elements and the plurality of electrodes;
A thermoelectric conversion module.