JP5076209B2 - Thermoelectric module - Google Patents

Thermoelectric module Download PDF

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JP5076209B2
JP5076209B2 JP2007109313A JP2007109313A JP5076209B2 JP 5076209 B2 JP5076209 B2 JP 5076209B2 JP 2007109313 A JP2007109313 A JP 2007109313A JP 2007109313 A JP2007109313 A JP 2007109313A JP 5076209 B2 JP5076209 B2 JP 5076209B2
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JP2008270421A (en
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航 清▲沢▼
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Kelk Ltd
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Description

本発明は、所定個数のｐ型熱電素子とｎ型熱電素子とを平面状に配列し、一方側薄膜基板における一方側電極をｐ型熱電素子およびｎ型熱電素子の一方面に取付け、他方側薄膜基板における他方側電極をｐ型熱電素子およびｎ型熱電素子の他方面に取付け、全てのｐ型熱電素子およびｎ型熱電素子を電気的に直列に接続するとともに、一対の端部電極上における素子取付部と導線取付部とを、導線のハンダ付け時における熱電素子への熱影響を低減し得る長さ離隔させて成る熱電モジュールに関する。 In the present invention, a predetermined number of p-type thermoelectric elements and n-type thermoelectric elements are arranged in a plane, and one side electrode of one side thin film substrate is attached to one side of the p-type thermoelectric element and the n-type thermoelectric element, and the other side The other electrode of the thin film substrate is attached to the other surface of the p-type thermoelectric element and the n-type thermoelectric element, all the p-type thermoelectric elements and the n-type thermoelectric element are electrically connected in series, and on the pair of end electrodes . The present invention relates to a thermoelectric module in which an element attachment portion and a conductor attachment portion are separated by a length that can reduce the thermal effect on the thermoelectric element when soldering a conductor.

熱電モジュールの基本的な構成は、周知の如く、平面状に配列した所定個数のｐ型熱電素子とｎ型熱電素子との全てを、各熱電素子の一方面に取付けた一方側電極と、各熱電素子の他方面に取付けた他方側電極とによって直列に接続したものであり、さらに大面積において大きな能力を得ることを目的として、一方側電極および他方側電極を、それぞれフレキシブル基板に設置して成る熱電モジュールが提供されている(例えば、特許文献１参照)。     The basic configuration of the thermoelectric module is, as is well known, one side electrode in which all of a predetermined number of p-type thermoelectric elements and n-type thermoelectric elements arranged in a plane are attached to one surface of each thermoelectric element, It is connected in series with the other side electrode attached to the other side of the thermoelectric element, and the one side electrode and the other side electrode are respectively installed on the flexible substrate for the purpose of obtaining a large capacity in a large area. The thermoelectric module which consists of is provided (for example, refer patent document 1).

図８および図９に示す従来の熱電モジュールＡは、平面状に配列した所定個数のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎを、ベースフィルムＢｂに所定個数の一方側電極Ｂｔ、Ｂｔ…を配設した一方側薄膜基板Ｂと、ベースフィルムＣｂに所定個数の一方側電極Ｃｔ、Ｃｔ…を配設した一方側薄膜基板Ｃとより挟んで成っている。   A conventional thermoelectric module A shown in FIGS. 8 and 9 has a predetermined number of p-type thermoelectric elements P and n-type thermoelectric elements N arranged in a plane, and a predetermined number of one-side electrodes Bt, Bt... On a base film Bb. The one-side thin film substrate B and the one-side thin film substrate C in which a predetermined number of one-side electrodes Ct, Ct,.

さらに、上記熱電モジュールＡにおいては、一方側薄膜基板Ｂの一方側電極Ｂｔ、Ｂｔ…を、ｐ型熱電素子Ｐおよびｎ型熱電素子Ｎの一方面にハンダ付けするとともに、他方側薄膜基板Ｃの他方側電極Ｃｔ、Ｃｔ…を、ｐ型熱電素子Ｐおよびｎ型熱電素子Ｎの他方面にハンダ付けすることによって、全てのｐ型熱電素子Ｐおよびｎ型熱電素子Ｎを電気的に直列に接続している。 Further, in the thermoelectric module A, the one side electrodes Bt, Bt ... Of the one side thin film substrate B are soldered to one surface of the p-type thermoelectric element P and the n-type thermoelectric element N, and the other side thin film substrate C All the p-type thermoelectric elements P and n-type thermoelectric elements N are electrically connected in series by soldering the other side electrodes Ct, Ct... To the other surface of the p-type thermoelectric element P and the n-type thermoelectric element N. doing.

また、一方側薄膜基板ＢのベースフィルムＢｂには、一対の端部電極Ｔ、Ｔが配設されており、一方の端部電極Ｔにプラス側の導線Ｗ(ｐ)がハンダ付けされ、他方の端部電極Ｔにマイナス側の導線Ｗ(ｍ)がハンダ付けされている。   The base film Bb of the one-side thin film substrate B is provided with a pair of end electrodes T, T, and a positive conductor W (p) is soldered to the one end electrode T. The negative electrode W (m) is soldered to the end electrode T.

ここで、何れの端部電極Ｔも、導線Ｗのハンダ付け時における熱電素子への熱影響、詳しくはハンダ付け時の熱が熱電素子に伝わってダメージを与えたり、導線Ｗを接合するハンダが熱電素子に付着して反応することで特性や機械的強度が損なわれることを低減し得る長さ(寸法)だけ、素子取付部Ｔａと導線取付部Ｔｂとを離隔させる目的で、短冊の如き細長い平面形状に形成されている。
特開２００５−５０７１５７号公報 Here, any of the end electrodes T has a thermal effect on the thermoelectric element when the conductive wire W is soldered. Specifically, the heat at the time of soldering is transmitted to the thermoelectric element to cause damage, or there is solder that joins the conductive wire W. For the purpose of separating the element mounting portion Ta and the wire mounting portion Tb by a length (dimension) that can reduce the loss of characteristics and mechanical strength due to adhesion and reaction to the thermoelectric element, it is long and narrow like a strip. It is formed in a planar shape.
JP 2005-507157 A

ところで、従来の熱電モジュールＡにおいて、不用意に導線Ｗが引っ張られる等して端部電極Ｔに外力が作用した場合、端部電極Ｔを設置している一方側薄膜基板ＢのベースフィルムＢｂは、上記端部電極Ｔを拘束し得る十分な剛性を備えていないため、端部電極Ｔと熱電素子Ｐ、Ｎとの接合部分や、熱電素子Ｐ、Ｎそのものが、端部電極Ｔに作用する外力によって損傷してしまい、もって熱電モジュールＡとしての機能を損なう不都合があった。 By the way, in the conventional thermoelectric module A, when an external force is applied to the end electrode T by, for example, the lead wire W being pulled carelessly, the base film Bb of the one-side thin film substrate B on which the end electrode T is installed is Since the end electrode T does not have sufficient rigidity to restrain the end electrode T, the joint portion between the end electrode T and the thermoelectric elements P and N and the thermoelectric elements P and N themselves act on the end electrode T. There was an inconvenience that it was damaged by an external force and the function as the thermoelectric module A was impaired.

本発明は上記実状に鑑みて、端部電極に外力が作用した状況にあっても、熱電素子等の損傷を未然に防止することの可能な、熱電モジュールの提供を目的とするものである。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a thermoelectric module capable of preventing damage to a thermoelectric element or the like even when an external force is applied to an end electrode.

上記目的を達成するべく、請求項１に関わる熱電モジュールは、所定個数のｐ型熱電素子とｎ型熱電素子とを平面状に配列し、一方側薄膜基板における一方側電極をｐ型熱電素子およびｎ型熱電素子の一方面に取付け、他方側薄膜基板における他方側電極をｐ型熱電素子およびｎ型熱電素子の他方面に取付け、全てのｐ型熱電素子およびｎ型熱電素子を電気的に直列に接続して成る熱電モジュールであって、一対の端部電極上における素子取付部と導線取付部とを、導線のハンダ付け時における熱電素子への熱影響を低減し得る長さ離隔させるとともに、複数のｐ型熱電素子およびｎ型熱電素子の配列方向に沿い、かつ端部電極の形成された一方側薄膜基板の縁部に沿う態様で、端部電極を延在させて形成したことを特徴としている。 In order to achieve the above object, a thermoelectric module according to claim 1 includes a predetermined number of p-type thermoelectric elements and n-type thermoelectric elements arranged in a plane, and one side electrode on one side thin film substrate is connected to the p-type thermoelectric element and Attached to one side of the n-type thermoelectric element, the other side electrode of the other side thin film substrate is attached to the other side of the p-type thermoelectric element and the n-type thermoelectric element, and all p-type thermoelectric elements and n-type thermoelectric elements are electrically connected in series. The element mounting portion on the pair of end electrodes and the conductor mounting portion are separated by a length that can reduce the thermal effect on the thermoelectric element when soldering the conductor, The end electrode is formed so as to extend along the arrangement direction of the plurality of p-type thermoelectric elements and n-type thermoelectric elements and along the edge of the one-side thin film substrate on which the end electrodes are formed. It is said.

請求項２に関わる熱電モジュールは、所定個数のｐ型熱電素子とｎ型熱電素子とを平面状に配列し、一方側薄膜基板における一方側電極をｐ型熱電素子およびｎ型熱電素子の一方面に取付け、他方側薄膜基板における他方側電極をｐ型熱電素子およびｎ型熱電素子の他方面に取付け、全てのｐ型熱電素子およびｎ型熱電素子を電気的に直列に接続して成る熱電モジュールであって、一対の端部電極上における素子取付部と導線取付部とを、導線のハンダ付け時における熱電素子への熱影響を低減し得る長さ離隔させるとともに、端部電極上における素子取付部を、導線取付部を含んだ延在部位の軸線上から側方に外れた位置に形成したことを特徴している。 The thermoelectric module according to claim 2 has a predetermined number of p-type thermoelectric elements and n-type thermoelectric elements arranged in a plane, and one side electrode of one side thin film substrate is arranged on one side of the p-type thermoelectric element and the n-type thermoelectric element. The other side thin film substrate is attached to the other side electrode of the p-type thermoelectric element and the n-type thermoelectric element, and all the p-type thermoelectric elements and the n-type thermoelectric element are electrically connected in series. The element mounting part and the conductor mounting part on the pair of end electrodes are separated by a length that can reduce the thermal effect on the thermoelectric element when soldering the conductor, and the element mounting on the end electrode It is characterized in that the portion is formed at a position deviated laterally from the axial line of the extending portion including the conductor attachment portion.

請求項３に関わる熱電モジュールは、所定個数のｐ型熱電素子とｎ型熱電素子とを平面状に配列し、一方側薄膜基板における一方側電極をｐ型熱電素子およびｎ型熱電素子の一方面に取付け、他方側薄膜基板における他方側電極をｐ型熱電素子およびｎ型熱電素子の他方面に取付け、全てのｐ型熱電素子およびｎ型熱電素子を電気的に直列に接続して成る熱電モジュールであって、一対の端部電極上における素子取付部と導線取付部とを、導線のハンダ付け時における熱電素子への熱影響を低減し得る長さ離隔させるとともに、端部電極上における素子取付部に、２個以上の熱電素子を並置して取付けたことを特徴としている。 The thermoelectric module according to claim 3 has a predetermined number of p-type thermoelectric elements and n-type thermoelectric elements arranged in a plane, and one side electrode of one side thin film substrate is arranged on one side of the p-type thermoelectric element and the n-type thermoelectric element. The other side thin film substrate is attached to the other side electrode of the p-type thermoelectric element and the n-type thermoelectric element, and all the p-type thermoelectric elements and the n-type thermoelectric element are electrically connected in series. The element mounting part and the conductor mounting part on the pair of end electrodes are separated by a length that can reduce the thermal effect on the thermoelectric element when soldering the conductor, and the element mounting on the end electrode Two or more thermoelectric elements are juxtaposed and attached to the part.

請求項４の発明に関わる熱電モジュールは、請求項３の発明に係る熱電モジュールにおいて、端部電極上における素子取付部に並置して取付けた２個以上の熱電素子を、電気的に並列に接続したことを特徴としている。 The thermoelectric module according to a fourth aspect of the invention is the thermoelectric module according to the third aspect of the invention, wherein two or more thermoelectric elements mounted in parallel on the element mounting portion on the end electrode are electrically connected in parallel. It is characterized by that.

請求項１の発明に関わる熱電モジュールの構成においては、端部電極を複数のｐ型熱電素子およびｎ型熱電素子の配列方向に沿って延在させたことにより、端部電極に作用した外力の殆どが、ｐ型熱電素子とｎ型熱電素子とを配列したことで剛性の増大した一方側薄膜基板の縁部で受止められ、もって端部電極と熱電素子との接合部および熱電素子に作用する外力が軽減されるため、熱電モジュールにおける損傷を未然に防止することが可能となる。     In the configuration of the thermoelectric module according to the invention of claim 1, the end electrode is extended along the arrangement direction of the plurality of p-type thermoelectric elements and the n-type thermoelectric element, so that the external force acting on the end electrode is reduced. Almost all of the p-type and n-type thermoelectric elements are received at the edge of the one-side thin film substrate, which has increased rigidity, and thus acts on the junction between the end electrode and the thermoelectric element and the thermoelectric element. Therefore, it is possible to prevent damage to the thermoelectric module.

請求項２の発明に関わる熱電モジュールの構成においては、端部電極の導線取付部を含む延在部位の軸線上から側方に外れた位置に素子取付部を形成したことにより、不用意に導線が引っ張られる等して端部電極の導線取付部に作用した外力は、導線取付部を含む延在部位の軸線上に沿って作用するものの、延在部位の軸線上から側方に外れて位置する素子取付部には大きく影響することはなく、もって端部電極と熱電素子との接合部および熱電素子に作用する外力が軽減されるため、熱電モジュールにおける損傷を未然に防止することが可能となる。   In the configuration of the thermoelectric module according to the invention of claim 2, the conductor attachment is inadvertently formed by forming the element attachment portion at a position deviated laterally from the axis of the extending portion including the conductor attachment portion of the end electrode. The external force acting on the lead wire attachment part of the end electrode due to the tension of the electrode is applied along the axis of the extension part including the lead attachment part, but is located laterally off the axis of the extension part. Therefore, it is possible to prevent damage to the thermoelectric module since the external force acting on the junction between the end electrode and the thermoelectric element and the thermoelectric element is reduced. Become.

請求項３の発明に関わる熱電モジュールの構成においては、端部電極の素子取付部に２個以上の熱電素子を並置して取付けたことにより、端部電極に作用した外力は１個の熱電素子に集中することなく、複数の熱電素子に分散して作用するため、１個当たりの熱電素子に作用する負荷は小さなものとなり、もって端部電極と熱電素子との接合部および熱電素子に作用する外力が軽減されることで、熱電モジュールにおける損傷を未然に防止することが可能となる。   In the configuration of the thermoelectric module according to the invention of claim 3, by attaching two or more thermoelectric elements in parallel to the element mounting portion of the end electrode, the external force acting on the end electrode is one thermoelectric element. Therefore, the load acting on each thermoelectric element is small, so that it acts on the junction between the end electrode and the thermoelectric element and on the thermoelectric element. By reducing the external force, it is possible to prevent damage to the thermoelectric module.

請求項４の発明に関わる熱電モジュールの構成においては、端部電極の素子取付部に取付けた２個以上の熱電素子を電気的に並列に接続したことで、端部電極に作用する外力によって熱電素子の何れかが損傷した場合でも、１個の熱電素子さえ損傷を免れれば熱電モジュール全体の回路が維持されるため、熱電モジュールにおけるサバイバビリティーを向上させることが可能となる。   In the configuration of the thermoelectric module according to the invention of claim 4, two or more thermoelectric elements attached to the element attaching portion of the end electrode are electrically connected in parallel, so that the thermoelectric force is applied by an external force acting on the end electrode. Even if any one of the elements is damaged, the circuit of the entire thermoelectric module is maintained as long as even one thermoelectric element is not damaged. Therefore, the survivability of the thermoelectric module can be improved.

以下、実施例を示す図面に基づいて、本発明の構成を詳細に説明する。
図１〜図４は、本発明に関わる熱電モジュールの一実施例を示しており、この熱電モジュール１は、平面状に配列した所定個数のｐ型熱電素子Ｐ、Ｐ…、および所定個数のｎ型熱電素子Ｎ、Ｎ…を具備し、さらに全てのｐ型熱電素子Ｐとｎ型熱電素子Ｎとを上下から挟持する、一方側薄膜基板１０および他方側薄膜基板２０を具備している。 Hereinafter, the configuration of the present invention will be described in detail with reference to the drawings illustrating embodiments.
1 to 4 show an embodiment of a thermoelectric module according to the present invention. The thermoelectric module 1 includes a predetermined number of p-type thermoelectric elements P, P... Arranged in a plane and a predetermined number of n. , And one thin film substrate 10 and the other thin film substrate 20 that sandwich all the p-type thermoelectric elements P and the n-type thermoelectric elements N from above and below.

上記一方側薄膜基板１０は、矩形状を呈するベースフィルム１１の表面に、所定個数の一方側電極１２、１２…を配設して成り、また上記他方側薄膜基板２０は、矩形状を呈するベースフィルム２１の表面に、所定個数の他方側電極２２、２２…を配設して成っている。   The one side thin film substrate 10 is formed by disposing a predetermined number of one side electrodes 12, 12... On the surface of a base film 11 having a rectangular shape, and the other side thin film substrate 20 is a base having a rectangular shape. A predetermined number of other-side electrodes 22, 22... Are arranged on the surface of the film 21.

ここで、所定個数のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎは、平面視において矩形状に配列されており、上記一方側薄膜基板１０のベースフィルム１１、および上記他方側薄膜基板２０のベースフィルム２１は、所定個数のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎの配置領域よりも一回り大きい矩形状を呈している。   Here, the predetermined number of p-type thermoelectric elements P and n-type thermoelectric elements N are arranged in a rectangular shape in plan view, and the base film 11 of the one side thin film substrate 10 and the base of the other side thin film substrate 20 are arranged. The film 21 has a rectangular shape that is slightly larger than a region where the predetermined number of p-type thermoelectric elements P and n-type thermoelectric elements N are arranged.

上記一方側薄膜基板１０の一方側電極１２、１２…は、ｐ型熱電素子Ｐおよびｎ型熱電素子Ｎの一方面にハンダ付けされ、また他方側薄膜基板２０の他方側電極２２、２２…は、ｐ型熱電素子Ｐおよびｎ型熱電素子Ｎの他方面にハンダ付けされ、これにより全てのｐ型熱電素子Ｐおよびｎ型熱電素子Ｎが互いに直列に接続されている。   The one side electrodes 12, 12... Of the one side thin film substrate 10 are soldered to one surface of the p-type thermoelectric element P and the n-type thermoelectric element N, and the other side electrodes 22, 22. The p-type thermoelectric element P and the n-type thermoelectric element N are soldered to the other surface, whereby all the p-type thermoelectric elements P and the n-type thermoelectric elements N are connected in series with each other.

また、図３および図４に示す如く、一方側薄膜基板１０のベースフイルム１１には、一対の端部電極１２Ａと端部電極１２Ｂとが配設されており、一方の端部電極１２Ａには、プラス側の導線３０Ａがハンダ付けされ、他方の端部電極１２Ｂには、マイナス側の導線３０Ｂがハンダ付けされている。   Further, as shown in FIGS. 3 and 4, the base film 11 of the one-side thin film substrate 10 is provided with a pair of end electrodes 12A and 12B, and one end electrode 12A has The plus side conductor 30A is soldered, and the other end electrode 12B is soldered with the minus side conductor 30B.

図５および図６に示す如く、上記一方の端部電極１２Ａおよび他方の端部電極１２Ｂは、一方側薄膜基板１０のベースフイルム１１における縁部１１ｅに沿って延在しており、併せて上記一方の端部電極１２Ａおよび他方の端部電極１２Ｂは、上記ベースフイルム１１の縁部１１ｅに沿って配置されたｐ型熱電素子Ｐおよびｎ型熱電素子Ｎの配列方向に沿って延在している。   As shown in FIG. 5 and FIG. 6, the one end electrode 12A and the other end electrode 12B extend along the edge 11e of the base film 11 of the one-side thin film substrate 10, and together with the above-mentioned One end electrode 12A and the other end electrode 12B extend along the arrangement direction of the p-type thermoelectric element P and the n-type thermoelectric element N arranged along the edge 11e of the base film 11. Yes.

図５に示す如く、一方の端部電極１２Ａは、ｐ型熱電素子Ｐの接続される素子取付部１２Ａａと、端部に導線取付部１２Ａｂを有する延在部位１２Ａｃとを備え、図中において倒立Ｌ字状に屈曲した平面形状を呈しており、延在部位１２Ａｃの導線取付部１２Ａｂには、プラス側の導線３０Ａがハンダ付けされている。   As shown in FIG. 5, one end electrode 12A includes an element attachment portion 12Aa to which the p-type thermoelectric element P is connected and an extending portion 12Ac having a conductor attachment portion 12Ab at the end, and is inverted in the figure. It has a planar shape bent in an L shape, and a plus lead wire 30A is soldered to the lead wire attachment portion 12Ab of the extending portion 12Ac.

上記延在部位１２Ａｃは、ベースフイルム１１の縁部１１ｅ、およびｐ型熱電素子Ｐとｎ型熱電素子Ｎとの配列方向に沿って延在しており、上記延在部位１２Ａｃの軸線ａ−ａ上から側方に外れた位置に、上記素子取付部１２Ａａが突出形成されている。   The extending portion 12Ac extends along the edge 11e of the base film 11 and the arrangement direction of the p-type thermoelectric element P and the n-type thermoelectric element N, and the axis aa of the extending portion 12Ac. The element attaching portion 12Aa is formed so as to protrude at a position deviated laterally from above.

また、上記一方の端部電極１２Ａにおいて、素子取付部１２Ａａと導線取付部１２Ａｂとは、導線３０Ａのハンダ付け時におけるｐ型熱電素子Ｐへの熱影響を低減し得る長さだけ離隔して形成されており、上記素子取付部１２Ａａには、並置された３個のｐ型熱電素子Ｐ、Ｐ、Ｐがハンダ付けされている。   In the one end electrode 12A, the element attachment portion 12Aa and the conductor attachment portion 12Ab are formed apart by a length that can reduce the thermal effect on the p-type thermoelectric element P when the conductor 30A is soldered. In addition, three p-type thermoelectric elements P, P, and P juxtaposed are soldered to the element mounting portion 12Aa.

図６に示す如く、他方の端部電極１２Ｂは、ｎ型熱電素子Ｎの接続される素子取付部１２Ｂａと、端部に導線取付部１２Ｂｂを有する延在部位１２Ｂｃとを備え、図中においてＬ字状に屈曲した平面形状を呈しており、延在部位１２Ｂｃの導線取付部１２Ｂｂには、マイナス側の導線３０Ｂがハンダ付けされている。 As shown in FIG. 6, the other end electrode 12B includes an element attachment portion 12Ba to which the n-type thermoelectric element N is connected, and an extended portion 12Bc having a conductor attachment portion 12Bb at the end portion. It has a planar shape bent in a letter shape, and a negative conductor 30B is soldered to the conductor attachment portion 12Bb of the extended portion 12Bc.

上記延在部位１２Ｂｃは、ベースフイルム１１の縁部１１ｅ、およびｐ型熱電素子Ｐとｎ型熱電素子Ｎとの配列方向に沿って延在しており、上記延在部位１２Ｂｃの軸線ａ−ａ上から側方に外れた位置に、上記素子取付部１２Ｂａが突出形成されている。   The extending portion 12Bc extends along the edge 11e of the base film 11 and the arrangement direction of the p-type thermoelectric element P and the n-type thermoelectric element N, and the axis aa of the extending portion 12Bc. The element mounting portion 12Ba is formed to protrude at a position deviated laterally from above.

また、上記他方の端部電極１２Ｂにおいて、素子取付部１２Ｂａと導線取付部１２Ｂｂとは、導線３０Ｂのハンダ付け時におけるｎ型熱電素子Ｎへの熱影響を低減し得る長さだけ離隔して形成されており、上記素子取付部１２Ｂａには、並置された３個のｎ型熱電素子Ｎ、Ｎ、Ｎがハンダ付けされている。   In the other end electrode 12B, the element attachment part 12Ba and the conductor attachment part 12Bb are separated from each other by a length that can reduce the thermal effect on the n-type thermoelectric element N when the conductor 30B is soldered. In addition, three n-type thermoelectric elements N, N, and N juxtaposed are soldered to the element mounting portion 12Ba.

ここで、図７(ａ)に示す如く、他方の端部電極１２Ｂにおける素子取付部１２Ｂａにハンダ付けされた３個のｎ型熱電素子Ｎ(ａ)、Ｎ(ｂ)、Ｎ(ｃ)は、一方側薄膜基板１０における端部電極１２Ｂと、他方側薄膜基板２０における他方側電極２２(ｌ)との間で電気的に並列に接続されている。   Here, as shown in FIG. 7A, the three n-type thermoelectric elements N (a), N (b), and N (c) soldered to the element mounting portion 12Ba in the other end electrode 12B are The end electrode 12B in the one side thin film substrate 10 and the other side electrode 22 (l) in the other side thin film substrate 20 are electrically connected in parallel.

また、図示を省略したものの、一方の端部電極１２Ａにおける素子取付部１２Ａａにハンダ付けされた３個のｐ型熱電素子Ｐ、Ｐ、Ｐも、上述した３個のｎ型熱電素子Ｎ、Ｎ、Ｎと同様、一方側薄膜基板１０における端部電極１２Ａと、他方側薄膜基板２０における他方側電極２２との間で電気的に並列に接続されている。   Although not shown, the three p-type thermoelectric elements P, P, P soldered to the element mounting portion 12Aa in the one end electrode 12A are also the three n-type thermoelectric elements N, N described above. , N are electrically connected in parallel between the end electrode 12A on the one side thin film substrate 10 and the other side electrode 22 on the other side thin film substrate 20.

上述した構成の熱電モジュール１によれば、端部電極１２Ａ、１２Ｂを、複数のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎの配列方向に沿って延在させたことで、導線３０Ａ、３０Ｂを引っ張る等して端部電極１２Ａ、１２Ｂに作用した外力の殆どは、ｐ型熱電素子Ｐとｎ型熱電素子Ｎとを配列したために剛性の増大したベースフィルム１１の縁部で受止められることとなる。   According to the thermoelectric module 1 having the above-described configuration, the end electrodes 12A and 12B are extended along the arrangement direction of the plurality of p-type thermoelectric elements P and n-type thermoelectric elements N. Most of the external force acting on the end electrodes 12A and 12B by being pulled or the like is received at the edge of the base film 11 having increased rigidity because the p-type thermoelectric element P and the n-type thermoelectric element N are arranged. Become.

これにより、端部電極１２Ａとｐ型熱電素子Ｐとの接合部およびｐ型熱電素子Ｐに作用する外力、或いは端部電極１２Ｂとｎ型熱電素子Ｎとの接合部およびｎ型熱電素子Ｎに作用する外力が軽減され、もって熱電モジュール１おける損傷を未然に防止することが可能となる。   Thereby, the external force acting on the junction between the end electrode 12A and the p-type thermoelectric element P and the p-type thermoelectric element P, or the junction between the end electrode 12B and the n-type thermoelectric element N and the n-type thermoelectric element N The acting external force is reduced, so that damage to the thermoelectric module 1 can be prevented in advance.

また、上述した構成の熱電モジュール１によれば、端部電極１２Ａ、１２Ｂにおける延在部位１２Ａｃ、１２Ｂｃの軸線ａ−ａ上から側方に外れた位置に素子取付部１２Ａａ、１２Ｂａを形成したことにより、導線３０Ａ、３０Ｂが引っ張られる等して端部電極１２Ａ、１２Ｂの導線取付部１２Ａｂ、１２Ｂｂに作用した外力は、延在部位１２Ａｃ、１２Ｂｃの軸線ａ−ａ上に沿って作用するものの、上記軸線ａ−ａ上から側方に外れて位置する素子取付部１２Ａａ、１２Ｂａに対して直接に大きく影響することはない。   Moreover, according to the thermoelectric module 1 having the above-described configuration, the element mounting portions 12Aa and 12Ba are formed at positions that are laterally disengaged from the axis aa of the extending portions 12Ac and 12Bc in the end electrodes 12A and 12B. Thus, the external force applied to the conductor attachment portions 12Ab and 12Bb of the end electrodes 12A and 12B by being pulled by the conductors 30A and 30B acts along the axis aa of the extending portions 12Ac and 12Bc. The element mounting portions 12Aa and 12Ba located off the side from the axis aa are not greatly affected.

これにより、端部電極１２Ａとｐ型熱電素子Ｐとの接合部およびｐ型熱電素子Ｐに作用する外力、或いは端部電極１２Ｂとｎ型熱電素子Ｎとの接合部およびｎ型熱電素子Ｎに作用する外力が軽減され、もって熱電モジュール１おける損傷を未然に防止することが可能となる。   Thereby, the external force acting on the junction between the end electrode 12A and the p-type thermoelectric element P and the p-type thermoelectric element P, or the junction between the end electrode 12B and the n-type thermoelectric element N and the n-type thermoelectric element N The acting external force is reduced, so that damage to the thermoelectric module 1 can be prevented in advance.

さらに、上述した構成の熱電モジュール１によれば、端部電極１２Ａ、１２Ｂの素子取付部１２Ａａ、１２Ｂａに、複数個のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎを並置して取付けたことで、導線３０Ａ、３０Ｂが引っ張られる等して端部電極１２Ａ、１２Ｂに作用した外力は、１個のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎのみに集中することなく、複数個の熱電素子に分散して作用するために、１個のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎに作用する負荷は小さなものとなる。   Furthermore, according to the thermoelectric module 1 having the above-described configuration, a plurality of p-type thermoelectric elements P and n-type thermoelectric elements N are juxtaposed and attached to the element attachment portions 12Aa and 12Ba of the end electrodes 12A and 12B. The external force acting on the end electrodes 12A, 12B by pulling the conducting wires 30A, 30B or the like is not concentrated on only one p-type thermoelectric element P and n-type thermoelectric element N, but on a plurality of thermoelectric elements. In order to act in a distributed manner, the load acting on one p-type thermoelectric element P and n-type thermoelectric element N is small.

これにより、端部電極１２Ａとｐ型熱電素子Ｐとの接合部およびｐ型熱電素子Ｐに作用する外力、或いは端部電極１２Ｂとｎ型熱電素子Ｎとの接合部およびｎ型熱電素子Ｎに作用する外力が軽減され、もって熱電モジュール１おける損傷を未然に防止することが可能となる。   Thereby, the external force acting on the junction between the end electrode 12A and the p-type thermoelectric element P and the p-type thermoelectric element P, or the junction between the end electrode 12B and the n-type thermoelectric element N and the n-type thermoelectric element N The acting external force is reduced, so that damage to the thermoelectric module 1 can be prevented in advance.

また、上述した構成の熱電モジュール１においては、端部電極１２Ａ、１２Ｂの素子取付部１２Ａａ、１２Ｂａに取付けた２個以上のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎを、電気的に並列に接続したことによって、端部電極１２Ａ、１２Ｂに作用する外力によって熱電素子の何れかが損傷した場合でも、１個の熱電素子さえ損傷を免れれば、熱電モジュール１における全体の回路が維持されるため、熱電モジュール１のサバイバビリティーが格段に向上することとなる。   Further, in the thermoelectric module 1 having the above-described configuration, two or more p-type thermoelectric elements P and n-type thermoelectric elements N attached to the element attachment portions 12Aa and 12Ba of the end electrodes 12A and 12B are electrically connected in parallel. Even if one of the thermoelectric elements is damaged due to the external force acting on the end electrodes 12A and 12B, the entire circuit in the thermoelectric module 1 is maintained as long as one thermoelectric element is not damaged. Therefore, the survivability of the thermoelectric module 1 is significantly improved.

ここで、図７(ｂ)に示した熱電モジュール１では、端部電極１２Ｂの素子取付部１２Ｂａに接続された３個のｎ型熱電素子Ｎ(ａ)、Ｎ(ｂ)、Ｎ(ｃ)のうち、２個のｎ型熱電素子Ｎ(ａ)、Ｎ(ｂ)を、他方側薄膜基板２０の共通する他方側電極２２と接続して単なる補強用部品に利用し、１個のｎ型熱電素子Ｎ(ｃ)のみを他方側薄膜基板２０の他方側電極２２と電気的に接続させて回路を形成している。因みに、一方の端部電極１１Ａの素子取付部１２Ａａに接続された３個のｐ型熱電素子Ｐ、Ｐ、Ｐも、上述した３個のｎ型熱電素子Ｎ(ａ)、Ｎ(ｂ)、Ｎ(ｃ)と同じく、２個を捨て素子として補強用部品に利用するとともに、１個のｐ型熱電素子Ｐのみを回路の構成部品としていることは勿論である。   Here, in the thermoelectric module 1 shown in FIG. 7B, three n-type thermoelectric elements N (a), N (b), and N (c) connected to the element mounting portion 12Ba of the end electrode 12B. Of these, two n-type thermoelectric elements N (a) and N (b) are connected to the other side electrode 22 common to the other side thin film substrate 20 and used as a mere reinforcing component. Only the thermoelectric element N (c) is electrically connected to the other side electrode 22 of the other side thin film substrate 20 to form a circuit. Incidentally, the three p-type thermoelectric elements P, P, P connected to the element mounting portion 12Aa of the one end electrode 11A are also the three n-type thermoelectric elements N (a), N (b), Of course, as with N (c), two elements are used as reinforcing elements as reinforcing elements, and only one p-type thermoelectric element P is used as a circuit component.

図７(ｂ)に示した熱電モジュール１においても、端部電極１２Ａ、１２Ｂの素子取付部１２Ａａ、１２Ｂａに、複数個のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎを並置して取付けたことで、端部電極１２Ａ、１２Ｂに作用した外力は、複数個の熱電素子に分散して作用するため、端部電極１２Ａとｐ型熱電素子Ｐとの接合部およびｐ型熱電素子Ｐに作用する外力、或いは端部電極１２Ｂとｎ型熱電素子Ｎとの接合部およびｎ型熱電素子Ｎに作用する外力が軽減され、もって熱電モジュール１おける損傷を未然に防止することが可能となる。   Also in the thermoelectric module 1 shown in FIG. 7B, a plurality of p-type thermoelectric elements P and n-type thermoelectric elements N are mounted side by side on the element mounting portions 12Aa and 12Ba of the end electrodes 12A and 12B. Thus, the external force acting on the end electrodes 12A and 12B acts in a distributed manner on the plurality of thermoelectric elements, and thus acts on the junction between the end electrode 12A and the p-type thermoelectric element P and the p-type thermoelectric element P. The external force or the external force acting on the junction of the end electrode 12B and the n-type thermoelectric element N and the external force acting on the n-type thermoelectric element N is reduced, so that the thermoelectric module 1 can be prevented from being damaged beforehand.

なお、図１〜図７に示した実施例の熱電モジュール１においては、端部電極１２Ａ、１２Ｂの素子取付部１２Ａａ、１２Ｂａに、それぞれ３個のｐ型熱電素子Ｐおよびｎ型熱電素子Ｎを並置して接続させているが、上記素子取付部１２Ａａ、１２Ｂａに並置して接続されるｐ型熱電素子Ｐおよびｎ型熱電素子Ｎの個数は、２個以上であれば、熱電モジュールの仕様等に基づいて適宜に設定し得ることは言うまでもない。   In addition, in the thermoelectric module 1 of the Example shown in FIGS. 1-7, three p-type thermoelectric elements P and n-type thermoelectric elements N are respectively attached to the element attachment parts 12Aa and 12Ba of the end electrodes 12A and 12B. Although the number of p-type thermoelectric elements P and n-type thermoelectric elements N connected in parallel to the element mounting portions 12Aa and 12Ba is two or more, the specifications of the thermoelectric module, etc. Needless to say, it can be set appropriately based on the above.

本発明に関わる熱電モジュールの一実施例を示す全体上面図。The whole top view which shows one Example of the thermoelectric module concerning this invention. 図１に示した熱電モジュールの全体下面図。The whole bottom view of the thermoelectric module shown in FIG. 図１に示した熱電モジュールの側面断面である図１中のIII−III線断面図。The III-III sectional view taken on the line in FIG. 1 which is a side surface cross section of the thermoelectric module shown in FIG. 図１に示した熱電モジュールから上面側の薄膜基板を取り除いた状態を上方から観た全体平面図。The whole top view which looked at the state which removed the thin film substrate of the upper surface side from the thermoelectric module shown in FIG. 1 from upper direction. 図１に示した熱電モジュールの下面側の薄膜基板を実装面から観た要部平面図。The principal part top view which looked at the thin film substrate of the lower surface side of the thermoelectric module shown in FIG. 1 from the mounting surface. 図１に示した熱電モジュールの下面側の薄膜基板を実装面から観た要部平面図。The principal part top view which looked at the thin film substrate of the lower surface side of the thermoelectric module shown in FIG. 1 from the mounting surface. (ａ)および(ｂ)は、端部電極に対する熱電素子の接続状態を示す概念的な断面図。(a) And (b) is notional sectional drawing which shows the connection state of the thermoelectric element with respect to an edge part electrode. (ａ)および(ｂ)は、従来の熱電モジュールを示す平面図および側面図。(a) And (b) is the top view and side view which show the conventional thermoelectric module. 図８中の IX−IX 線断面図。IX-IX line sectional view in FIG.

符号の説明Explanation of symbols

１…熱電モジュール、
１０…一方側薄膜基板、
１１…ベースフィルム、
１１ｅ…縁部、
１２…一方側電極、
１２Ａ…端部電極、
１２Ａａ…素子取付部、
１２Ａｂ…導線取付部、
１２Ａｃ…延在部位、
１２Ｂ…端部電極、
１２Ｂａ…素子取付部、
１２Ｂｂ…導線取付部、
１２Ｂｃ…延在部位、
２０…他方側薄膜基板、
２１…ベースフィルム、
２２…他方側電極、
３０Ａ…導線、
３０Ｂ…導線、
Ｐ…ｐ型熱電半導体素子(熱電素子)、
Ｎ…ｎ型熱電半導体素子(熱電素子)。 1 ... Thermoelectric module,
10: One side thin film substrate,
11 ... Base film,
11e ... the edge,
12: One side electrode,
12A ... end electrode,
12Aa: Element mounting portion,
12 Ab ... Conductor mounting part,
12Ac ... Extension site,
12B ... end electrode,
12Ba: Element mounting part,
12Bb: Conductor mounting part,
12Bc ... Extension site,
20 ... the other side thin film substrate,
21 ... Base film,
22 ... the other electrode,
30A ... Lead wire,
30B ... Lead wire,
P ... p-type thermoelectric semiconductor element (thermoelectric element),
N: n-type thermoelectric semiconductor element (thermoelectric element).

Claims (4)

所定個数のｐ型熱電素子とｎ型熱電素子とを平面状に配列し、一方側薄膜基板における一方側電極を前記ｐ型熱電素子および前記ｎ型熱電素子の一方面に取付け、他方側薄膜基板における他方側電極を前記ｐ型熱電素子および前記ｎ型熱電素子の他方面に取付け、全ての前記ｐ型熱電素子および前記ｎ型熱電素子を電気的に直列に接続して成る熱電モジュールであって、
一対の端部電極上における素子取付部と導線取付部とを、導線のハンダ付け時における前記熱電素子への熱影響を低減し得る長さ離隔させるとともに、複数の前記ｐ型熱電素子および前記ｎ型熱電素子の配列方向に沿い、かつ前記端部電極の形成された前記一方側薄膜基板の縁部に沿う態様で、前記端部電極を延在させて形成したことを特徴とする熱電モジュール。 A predetermined number of p-type thermoelectric elements and n-type thermoelectric elements are arranged in a plane, one side electrode of one side thin film substrate is attached to one side of the p-type thermoelectric element and the n-type thermoelectric element, and the other side thin film substrate A thermoelectric module in which the other side electrode is attached to the other surface of the p-type thermoelectric element and the n-type thermoelectric element, and all the p-type thermoelectric elements and the n-type thermoelectric elements are electrically connected in series. ,
The element attachment part and the conductor attachment part on the pair of end electrodes are separated by a length that can reduce the thermal effect on the thermoelectric element when soldering the conductor, and a plurality of the p-type thermoelectric elements and the n A thermoelectric module, wherein the end electrodes are formed so as to extend along the arrangement direction of the thermoelectric elements and along the edge of the one-side thin film substrate on which the end electrodes are formed. 所定個数のｐ型熱電素子とｎ型熱電素子とを平面状に配列し、一方側薄膜基板における一方側電極を前記ｐ型熱電素子および前記ｎ型熱電素子の一方面に取付け、他方側薄膜基板における他方側電極を前記ｐ型熱電素子および前記ｎ型熱電素子の他方面に取付け、全ての前記ｐ型熱電素子および前記ｎ型熱電素子を電気的に直列に接続して成る熱電モジュールであって、
一対の端部電極上における素子取付部と導線取付部とを、導線のハンダ付け時における前記熱電素子への熱影響を低減し得る長さ離隔させるとともに、前記端部電極上における前記素子取付部を、前記導線取付部を含んだ延在部位の軸線上から側方に外れた位置に形成したことを特徴とする熱電モジュール。 A predetermined number of p-type thermoelectric elements and n-type thermoelectric elements are arranged in a plane, one side electrode of one side thin film substrate is attached to one side of the p-type thermoelectric element and the n-type thermoelectric element, and the other side thin film substrate A thermoelectric module in which the other side electrode is attached to the other surface of the p-type thermoelectric element and the n-type thermoelectric element, and all the p-type thermoelectric elements and the n-type thermoelectric elements are electrically connected in series. ,
The element mounting portion on the pair of end electrodes and the conductor mounting portion are separated by a length that can reduce the thermal effect on the thermoelectric element when the conductor is soldered, and the element mounting portion on the end electrode Is formed at a position deviated laterally from the axial line of the extending portion including the conductive wire mounting portion. 所定個数のｐ型熱電素子とｎ型熱電素子とを平面状に配列し、一方側薄膜基板における一方側電極を前記ｐ型熱電素子および前記ｎ型熱電素子の一方面に取付け、他方側薄膜基板における他方側電極を前記ｐ型熱電素子および前記ｎ型熱電素子の他方面に取付け、全ての前記ｐ型熱電素子および前記ｎ型熱電素子を電気的に直列に接続して成る熱電モジュールであって、
一対の端部電極上における素子取付部と導線取付部とを、導線のハンダ付け時における前記熱電素子への熱影響を低減し得る長さ離隔させるとともに、前記端部電極上における前記素子取付部に、２個以上の前記熱電素子を並置して取付けたことを特徴とする熱電モジュール。 A predetermined number of p-type thermoelectric elements and n-type thermoelectric elements are arranged in a plane, one side electrode of one side thin film substrate is attached to one side of the p-type thermoelectric element and the n-type thermoelectric element, and the other side thin film substrate A thermoelectric module in which the other side electrode is attached to the other surface of the p-type thermoelectric element and the n-type thermoelectric element, and all the p-type thermoelectric elements and the n-type thermoelectric elements are electrically connected in series. ,
The element mounting portion on the pair of end electrodes and the conductor mounting portion are separated by a length that can reduce the thermal effect on the thermoelectric element when the conductor is soldered, and the element mounting portion on the end electrode A thermoelectric module comprising two or more thermoelectric elements mounted side by side. 前記端部電極上における前記素子取付部に並置して取付けた２個以上の前記熱電素子を、電気的に並列に接続したことを特徴とする請求項３記載の熱電モジュール。 The thermoelectric module according to claim 3, wherein two or more thermoelectric elements attached in parallel to the element attaching portion on the end electrode are electrically connected in parallel.
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