JP2000183409A - Thermoelectric converter - Google Patents
Thermoelectric converterInfo
- Publication number
- JP2000183409A JP2000183409A JP10353086A JP35308698A JP2000183409A JP 2000183409 A JP2000183409 A JP 2000183409A JP 10353086 A JP10353086 A JP 10353086A JP 35308698 A JP35308698 A JP 35308698A JP 2000183409 A JP2000183409 A JP 2000183409A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- thermoelectric conversion
- heat absorbing
- thermoelectric
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Electromechanical Clocks (AREA)
Abstract
(57)【要約】
【課題】 振動、落下等の衝撃にたえるだけの機械的な
強度を備えた熱電変換装置を実現する。
【解決手段】 各エレメント間の間隙を樹脂1008が
充填されている熱電素子1009と第1吸放熱板101
0及び第2吸放熱板1011、さらに、これらの吸放熱
板1010及び1011はプラスチック製の断熱構造体
1012により接続されることにより構成されている。
第2基板1003と第2吸放熱板1011はチキソトロ
ピー性を有する熱伝導性シリコーンコンパウンド101
4で熱的に接触を保つようになっている。
(57) [Summary] [PROBLEMS] To realize a thermoelectric conversion device having mechanical strength enough to withstand shocks such as vibration and dropping. SOLUTION: A thermoelectric element 1009 filled with a resin 1008 in a gap between respective elements and a first heat absorbing / radiating plate 101 are provided.
The first and second heat absorbing and radiating plates 1011 and the heat absorbing and radiating plates 1010 and 1011 are connected by a heat insulating structure 1012 made of plastic.
The second substrate 1003 and the second heat absorbing / radiating plate 1011 are made of a heat conductive silicone compound 101 having thixotropic properties.
4 keeps thermal contact.
Description
【0001】[0001]
【発明の属する技術分野】本発明は、P型およびN型熱
電材料からなるエレメントを備え、ゼーベック効果によ
る温度差発電(熱発電)やペルチェ効果による電子冷却
・発熱を可能とする熱電変換素装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoelectric conversion device having an element made of P-type and N-type thermoelectric materials and capable of performing temperature difference power generation (thermal power generation) by the Seebeck effect and electronic cooling and heat generation by the Peltier effect. About.
【0002】[0002]
【従来の技術】二枚の基板に熱電エレメントを挟んだ構
造を有する、いわゆる、π型熱電変換素子を発電装置と
して用いる場合、熱電変換素子に対する熱の流入、流出
を効率良く行う様にするため、これら二枚の基板に金属
など熱伝導性の高い物質からなる吸放熱板(一方が吸熱
板となり、他方が放熱板となることはいうまでもなく、
その機能は状況によって入れ替わる)を接着剤で接続し
たり、バネやゴムをはじめとする弾性部材を介すると同
時にネジ締結等により接続していた。2. Description of the Related Art When a so-called π-type thermoelectric conversion element having a structure in which a thermoelectric element is sandwiched between two substrates is used as a power generation device, it is necessary to efficiently input and output heat to and from the thermoelectric conversion element. A heat absorbing and dissipating plate made of a material having high thermal conductivity such as metal (one of which becomes a heat absorbing plate and the other becomes a heat dissipating plate, needless to say,
(The functions are replaced depending on the situation.) The connection is made by an adhesive, or by an elastic member such as a spring or rubber, and at the same time, by screwing or the like.
【0003】また、近年、小型の熱電変換素子を発電装
置として用いることにより、体温と外気温との温度差に
より発電を行い、腕時計等の携帯型の小型電子機器を駆
動させるといった動きが広く見られるようになってきて
いる。このような小型の熱電変換素子の構造や作製方法
については、特開昭63−20880号公報、特開平8
−18109号公報や特開平8―97472号公報など
に記載・開示されている。[0003] In recent years, it has been widely observed that a small thermoelectric conversion element is used as a power generation device to generate power by a temperature difference between body temperature and outside air temperature, thereby driving a portable small electronic device such as a wristwatch. It is becoming possible. The structure and manufacturing method of such a small thermoelectric conversion element are described in JP-A-63-20880,
This is described and disclosed in Japanese Patent Application Laid-Open No. -18109 and Japanese Patent Application Laid-Open No. 8-97472.
【0004】さらに、このような熱電変換素子の腕時計
等への発電装置としての応用やその取り付け構造につい
ては、特開昭55―20483号公報、特開平8―46
249号公報、特開平6―109868号公報等に記載
・開示されている。Further, application of such a thermoelectric conversion element to a wristwatch or the like as a power generation device and a mounting structure thereof are described in JP-A-55-20483 and JP-A-8-46.
No. 249, JP-A-6-109868 and the like.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、熱電変
換素子の二枚の基板と吸放熱板を接着剤やネジ等により
強固に接着や接続を行った場合、吸放熱板に力、とくに
せん断方向に力が加えられると、熱電変換素子を破損し
てしまうという問題があった。一方、腕時計等に熱電変
換素子を熱発電装置として、腕時計等の電子機器とくに
携帯型の電子機器に搭載する場合、一般に、室温付近で
最も熱電変換性能が高いと言われている物質であるビス
マス−テルル系材料が用いられるが、この材料は、非常
に機械的強度が低い物質である。したがって、腕時計の
ような携帯電子機器では、振動、落下等の衝撃にたえる
だけの機械的な強度を考えた構造設計も要求される。こ
の場合、熱電変換素子に吸放熱板を取り付けた場合、一
般的な熱電変換素子だけでなく、特開昭63−2088
0や特開平8−18109などに開示されている熱電変
換素子を構成するエレメントの間隙に樹脂を充填するこ
とにより補強された素子においてさえも熱電変換素子を
破損してしまうという問題があった。However, when the two substrates of the thermoelectric conversion element and the heat sink / radiator plate are firmly bonded or connected by an adhesive or a screw, the force is applied to the heat sink / radiator plate, especially in the shear direction. When a force is applied, there is a problem that the thermoelectric conversion element is damaged. On the other hand, when a thermoelectric conversion element is used as a thermoelectric generator in a wristwatch or the like and is mounted on an electronic device such as a wristwatch, particularly a portable electronic device, bismuth, which is generally said to have the highest thermoelectric conversion performance near room temperature, is used. -A tellurium-based material is used, which is a substance with very low mechanical strength. Therefore, a portable electronic device such as a wristwatch also requires a structural design that considers mechanical strength enough to withstand shocks such as vibration and dropping. In this case, when a heat absorbing / radiating plate is attached to the thermoelectric conversion element, not only a general thermoelectric conversion element but also a thermoelectric conversion element disclosed in JP-A-63-2088 is used.
However, there is a problem that even the element reinforced by filling the gap between the elements constituting the thermoelectric conversion element disclosed in Japanese Patent Application Laid-Open No. H8-18109 or the like may be damaged.
【0006】[0006]
【課題を解決するための手段】本発明の熱電変換装置で
は、熱電変換素子の二枚の基板と二枚の吸放熱板の接続
が、少なくとも一方の接続において、流動性や粘弾性、
特に通常は一定の形態を有し、外力が加わることにより
変形する性質を意味するチキソトロピー性を有する材料
を介してなされている。この材料により、吸放熱板を介
して伝わる外部からの衝撃を吸収し、熱電変換素子の破
壊、損傷を防ぐことができる。この場合には、チキソト
ロピー性を有する材料として、熱伝導率の高い材料を選
択する必要があるが、シリコーンオイルにアルミナ等の
微粒子を混合することにより作られるいわゆるシリコー
ン・コンパウンドをはじめとする油脂等に高熱伝導性物
質の微粒子分散したものや粘土などがあげられる。According to the thermoelectric conversion device of the present invention, the connection between the two substrates of the thermoelectric conversion element and the two heat absorbing and radiating plates is at least one of the connections.
In particular, it is usually made of a material having a certain form and having a thixotropic property meaning a property of being deformed when an external force is applied. With this material, the external shock transmitted through the heat absorbing / radiating plate can be absorbed, and the breakage and damage of the thermoelectric conversion element can be prevented. In this case, it is necessary to select a material having a high thermal conductivity as the material having thixotropic properties. However, oils and fats such as so-called silicone compounds made by mixing fine particles such as alumina with silicone oil, etc. And fine particles of a highly heat-conductive substance dispersed therein and clay.
【0007】また、本発明の熱電変換装置では、上記の
ごとく熱電変換素子の基板に接続された二枚の吸放熱板
を樹脂、ガラス、セラミックス、金属等からなる熱伝導
率の小さな物質からなる構造体で強固に接続している。
これにより、吸放熱板に外力が与えられた場合において
も、熱電変換装置としての形態を維持することが出来る
と同時に、熱電変換素子と吸放熱板の接続が上記のよう
に外力により変形するチキソトロピー性を有する接続材
によっているため、熱電変換素子を破損することがなく
なる。Further, in the thermoelectric conversion device of the present invention, as described above, the two heat absorbing and radiating plates connected to the substrate of the thermoelectric conversion element are made of a material having a low thermal conductivity such as resin, glass, ceramics, and metal. The structure is firmly connected.
Accordingly, even when an external force is applied to the heat absorbing and dissipating plate, the configuration as the thermoelectric conversion device can be maintained, and at the same time, the connection between the thermoelectric conversion element and the heat absorbing and dissipating plate is deformed by the external force as described above. The thermoelectric conversion element is not damaged due to the connection material having the property.
【0008】[0008]
【発明の実施の形態】以下、本願発明の実施例を、図面
を参照して詳細に説明する。図1は本発明に係わる熱電
変換装置の概略断面図である。図1に示すように、熱電
素子1009は、P型熱電エレメント1004とN型熱
電エレメント1005が第1基板1002と第2基板1
003に挟持されると同時に第1電極1006および第
2電極1007を介して直列に接続され、さらに、各エ
レメント間の間隙に樹脂1008が充填された構成であ
る。そして、この熱電素子1009、第1吸放熱板10
10、第2吸放熱板1011、及び、これらの吸放熱板
を互いに接続するプラスチック製の断熱構造体1012
により熱電変換装置が構成されている。ここで第1基板
1002と第1吸放熱板1010は接着剤層1013で
強固に接続されており、第2基板1003と第2吸放熱
板1011はチキソトロピー性を有する熱伝導性シリコ
ーンコンパウンド1014で熱的に接触を保つようにな
っている。また、この熱電変換装置1001は、樹脂が
充填された熱電変換素子1009の第1基板1002上
に設けられた入出力電極1015に接続されるリード線
1016により外部と電気的に接続がなされるようにな
っている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic sectional view of a thermoelectric converter according to the present invention. As shown in FIG. 1, the thermoelectric element 1009 includes a P-type thermoelectric element 1004 and an N-type thermoelectric element 1005 that are composed of a first substrate 1002 and a second substrate 1.
003, and connected in series via a first electrode 1006 and a second electrode 1007, and a resin 1008 is filled in a gap between the elements. Then, the thermoelectric element 1009 and the first heat sink / radiator plate 10
10, a second heat sink / radiator plate 1011 and a plastic heat insulating structure 1012 connecting these heat sink / radiator plates to each other
Constitutes a thermoelectric conversion device. Here, the first substrate 1002 and the first heat absorbing and dissipating plate 1010 are firmly connected by an adhesive layer 1013, and the second substrate 1003 and the second heat absorbing and dissipating plate 1011 are thermally connected by a heat conductive silicone compound 1014 having thixotropic properties. It is designed to keep contact. The thermoelectric conversion device 1001 is electrically connected to the outside by a lead wire 1016 connected to an input / output electrode 1015 provided on the first substrate 1002 of the thermoelectric conversion element 1009 filled with resin. It has become.
【0009】次に、本実施例の熱電変換装置1001の
作製方法について説明する。図2に、樹脂が充填された
熱電変換素子1009のうち樹脂1008を除いた部分
の製造工程の概略を示す。まず、図2(a)に示すよう
に一定の厚さに研磨したP型熱電材料板2001を用意
する。次に図2(b)のように、このP型熱電材料板2
001の両面にフォトレジストを塗付し、露光・現像す
ることにより所望のパターンを有するレジスト層200
2を形成する。次に、図2(c)のようにニッケル層2
003を湿式法により形成する。さらに、図2(d)の
ようにその上にハンダ層2004を形成する。図2
(e)に、レジスト層2002を剥離・除去した状態を
示す。次に、図2(f)に示すように、ハンダ層200
4の組成を均一化し、ハンダ層を球形にすることにより
高さを整えることを目的としたリフロー処理(溶融処
理)によりハンダバンプ2005を形成する。ここで、
上述のニッケル層2003は、その形状からニッケルバ
ンプ2006と呼ぶこととする。これらの一連の処理に
より、ハンダバンプ構造体を有するP型熱電材料板20
07を得た。Next, a method for manufacturing the thermoelectric conversion device 1001 of the present embodiment will be described. FIG. 2 schematically shows a manufacturing process of a portion of the thermoelectric conversion element 1009 filled with the resin except for the resin 1008. First, as shown in FIG. 2A, a P-type thermoelectric material plate 2001 polished to a certain thickness is prepared. Next, as shown in FIG. 2B, the P-type thermoelectric material plate 2
A photoresist layer 200 having a desired pattern is formed by applying a photoresist to both sides of the photoresist layer 001 and exposing and developing the photoresist.
Form 2 Next, as shown in FIG.
003 is formed by a wet method. Further, a solder layer 2004 is formed thereon as shown in FIG. FIG.
(E) shows a state where the resist layer 2002 is peeled and removed. Next, as shown in FIG.
The solder bump 2005 is formed by a reflow process (melting process) for uniforming the composition of No. 4 and making the solder layer spherical so as to adjust the height. here,
The above-described nickel layer 2003 is referred to as a nickel bump 2006 because of its shape. By these series of processes, the P-type thermoelectric material plate 20 having the solder bump structure is formed.
07 was obtained.
【0010】次に、図2(g)に示すシリコンウエハ2
008を用意する。このシリコンウェハは表面を熱酸化
することにより絶縁化されている。次に、図2(h)の
ように、このシリコンウエハ2008上にクロム、ニッ
ケル、金からなる金属層2009をスパッタリング法に
より形成する。この金属層2009をフォトリソグラフ
ィー法により、所望のパターンを有する電極2010と
することにより、第1基板2011を作り上げる(図2
(i))。この電極2001は、PN接合を行うための
電極と外部への入出力を行うための電極となる。Next, the silicon wafer 2 shown in FIG.
008 is prepared. This silicon wafer is insulated by thermally oxidizing the surface. Next, as shown in FIG. 2H, a metal layer 2009 made of chromium, nickel, and gold is formed on the silicon wafer 2008 by a sputtering method. By forming the metal layer 2009 into an electrode 2010 having a desired pattern by a photolithography method, a first substrate 2011 is formed (FIG. 2).
(I)). The electrode 2001 serves as an electrode for performing a PN junction and an electrode for performing input / output to the outside.
【0011】次に、図2(j)のように、このように作
製された両面にバンプ構造体を有するP型熱電材料板2
007と第1基板2011とをハンダバンプ2005を
溶融することによりハンダで接続する。この際、P型熱
電材料板2001と第1基板2011との間には、ニッ
ケルバンプ2006により、間隙が設けられている。次
に、このようにして形成されたP型熱電材料板と第1基
板2011との接合体を、P型熱電材料上に形成された
ハンダバンプの間でP型熱電材料を必要に応じた刃具を
備えたダイシングマシンやワイヤーソーなどの切断装置
で切断することにより、不要な部分を除去する。この
際、第1基板2011上の電極2010や第1基板自体
を破損しないように刃具の刃先をニッケルバンプにより
出来た間隙内に収めるように切断装置を操作する。この
ようにして、第1基板2011にP型熱電エレメント2
012が接合されているP型熱電エレメント接合基板2
013Aを作製した(図2(k))。Next, as shown in FIG. 2 (j), a P-type thermoelectric material plate 2 having a bump structure on both sides manufactured in this manner.
007 and the first substrate 2011 are connected by soldering by melting the solder bumps 2005. At this time, a gap is provided between the P-type thermoelectric material plate 2001 and the first substrate 2011 by the nickel bump 2006. Next, the joined body of the P-type thermoelectric material plate and the first substrate 2011 formed as described above is connected with a cutting tool, which is necessary for the P-type thermoelectric material, between the solder bumps formed on the P-type thermoelectric material. Unnecessary portions are removed by cutting with a cutting device such as a dicing machine or a wire saw provided. At this time, the cutting device is operated so that the cutting edge of the cutting tool is accommodated in the gap formed by the nickel bump so as not to damage the electrode 2010 on the first substrate 2011 or the first substrate itself. Thus, the P-type thermoelectric element 2
P-type thermoelectric element bonded substrate 2 to which 012 is bonded
013A was produced (FIG. 2 (k)).
【0012】次に、同様にN型熱電材料についても、所
望のエレメント配置を有するN型熱電エレメント接合基
板2013Bを作製しておき、これらを向かい合わせ、
位置合わせしたのち、加圧・加熱することにより、各々
のエレメントと基板上の電極とをハンダバンプを介して
接合することにより、熱電変換素子2014を作製し
た。Next, similarly for the N-type thermoelectric material, an N-type thermoelectric element bonding substrate 2013B having a desired element arrangement is prepared, and these are opposed to each other.
After the alignment, each element and the electrode on the substrate were joined through solder bumps by applying pressure and heating, whereby a thermoelectric conversion element 2014 was manufactured.
【0013】具体的には、P型熱電材料板にはビスマ
ス、アンチモン、及びテルルからなる化合物を、N型熱
電材料板にはビスマス、テルルからなる化合物を使用し
た。また、厚みはともに600μmとした。ニッケルバ
ンプは直径80μm、高さ20μmの円筒型、ハンダバ
ンプは約直径80μmの球形に近いものとした。また、
バンプ中心間の距離は220μmとし、切断刃具の幅は
140μmとした。これにより、エレメントの大きさは
80μm角、高さ600μmとなった。また、エレメン
トの本数は、P型とN型を併せて102本直列につない
だ。More specifically, a compound composed of bismuth, antimony and tellurium was used for the P-type thermoelectric material plate, and a compound composed of bismuth and tellurium was used for the N-type thermoelectric material plate. The thickness was both 600 μm. The nickel bump had a cylindrical shape with a diameter of 80 μm and a height of 20 μm, and the solder bump had a shape close to a sphere with a diameter of about 80 μm. Also,
The distance between the bump centers was 220 μm, and the width of the cutting blade was 140 μm. As a result, the size of the element was 80 μm square and 600 μm in height. In addition, the number of elements was 102 in series, including P-type and N-type.
【0014】この熱電変換素子2014に流動性を有す
る樹脂を流し込み、硬化させることにより、樹脂100
8が充填された熱電変換素子1009を作製した。具体
的には、樹脂としてエポキシ樹脂を使用した。黄銅にニ
ッケルめっきを施したものからなる第1吸放熱板101
0上に、この10個の熱電変換素子1009をエポキシ
接着剤で接着した後、各々をワイヤーボンドにより金ワ
イヤーで直列に接続し、入出力電極1015にはリード
線1016を取り付けた。すなわち、102本×10個
=1020本の熱電エレメントを直列につないだものを
作製した。つぎに、第1吸放熱板1010にプラスチッ
ク製の断熱構造体1012をエポキシ接着剤により接続
した。10個の熱電変換素子1009の第2基板100
3の全てにシリコーコンパウンド1014を第2基板1
003と第2吸放熱板1011との間で熱接触が十分と
れるように適量載せた後、黄銅にニッケルめっきを施し
たものからなる第2吸放熱板1011をこれらの上にの
せ、接着剤によりプラスチック製の断熱構造体1012
と接着・固定することにより本発明の熱電変換装置10
01を作り上げた。A resin having fluidity is poured into the thermoelectric conversion element 2014 and cured to form a resin 100.
The thermoelectric conversion element 1009 filled with No. 8 was produced. Specifically, an epoxy resin was used as the resin. First heat sink / radiator plate 101 made of brass plated with nickel
After bonding these ten thermoelectric conversion elements 1009 on epoxy board 0 with an epoxy adhesive, each was connected in series by a gold wire by wire bonding, and a lead wire 1016 was attached to the input / output electrode 1015. That is, a device in which 102 × 10 = 1020 thermoelectric elements were connected in series was produced. Next, a plastic heat insulating structure 1012 was connected to the first heat sink / radiator plate 1010 using an epoxy adhesive. Second substrate 100 of ten thermoelectric conversion elements 1009
The silicon compound 1014 is applied to all of the second substrate 1
003 and the second heat absorbing and dissipating plate 1011 are placed in an appropriate amount so that thermal contact can be sufficiently provided, and then a second heat absorbing and dissipating plate 1011 made of brass plated with nickel is placed on these, and is then bonded with an adhesive. Plastic insulation structure 1012
The thermoelectric conversion device 10 of the present invention is bonded and fixed to
01 was created.
【0015】このようにして作製した熱電変換装置10
01の性能を調べたところ、電気抵抗は1000Ωを示
し、第1吸放熱板1010第2吸放熱板1011の間に
温度差を付けたところ、1℃当たり150mVの開放電
圧を得ることができた。次に、この熱電変換装置100
1を腕時計に組み込み、その性能を調べた。図3は、本
発明の熱電変換装置1001を腕時計に組み込んだもの
の断面を示した図である。熱電変換装置1001は、第
2吸放熱板が、金属製のケース3001と弾性を有する
金属製の導熱板3002を介して接続されている。他方
の第1吸放熱板は、裏蓋3003に熱伝導性の高いゴム
3004により、熱接触を保ちながら接続されている。
一方、ケース3001と裏蓋3003の間にはプラスチ
ック製の断熱枠3005が設けられており、この断熱枠
によりケースと裏蓋の間の断熱が図られている。このよ
うな構造により、腕から発せられた熱が裏蓋3003、
熱電変換装置1001を効率よく通り、ケース3001
及びガラス3006から外部に放熱する様になってる。
これにより、熱電変換装置1001を通過する熱により
発電がなされ、発電された電力は、0.2V以上あれ
ば、時計ムーブ内3007に収められた昇圧・整流装置
等により、1.5Vに安定化され時計を駆動するように
なっている。The thermoelectric conversion device 10 thus manufactured
When the performance of No. 01 was examined, the electrical resistance was 1000Ω, and when a temperature difference was provided between the first heat absorbing and dissipating plate 1010 and the second heat absorbing and dissipating plate 1011, an open circuit voltage of 150 mV per 1 ° C. was obtained. . Next, the thermoelectric conversion device 100
1 was assembled in a wristwatch and its performance was examined. FIG. 3 is a diagram showing a cross section of a thermoelectric conversion device 1001 of the present invention incorporated in a wristwatch. In the thermoelectric conversion device 1001, the second heat absorbing and radiating plate is connected to a metal case 3001 via a metal heat conductive plate 3002 having elasticity. The other first heat absorbing and radiating plate is connected to the back cover 3003 by a rubber 3004 having high thermal conductivity while maintaining thermal contact.
On the other hand, a plastic heat insulating frame 3005 is provided between the case 3001 and the back cover 3003, and heat insulation between the case and the back cover is achieved by the heat insulating frame. With such a structure, the heat generated from the arm allows the back cover 3003,
The case 3001 efficiently passes through the thermoelectric conversion device 1001.
In addition, heat is radiated from the glass 3006 to the outside.
As a result, power is generated by the heat passing through the thermoelectric converter 1001, and if the generated power is 0.2 V or more, the generated power is stabilized at 1.5 V by the step-up / rectifier device housed in the clock move 3007. It is designed to drive a watch.
【0016】この腕時計を携帯したところ、図4のよう
な熱電変換装置1001からの発電特性が得られた。曲
線Aは、外気温18℃の時の発電特性で、ピーク電圧は
携帯直後から約15秒後に1.2Vに達し、定常時でも
0.4Vを示した。曲線Bは外気温22℃のデータであ
り、曲線Cは28℃のものである。いずれの場合も、
0.2Vを超えており時計を駆動させるのに十分な出力
を有していることが示された。When this wristwatch was carried, power generation characteristics from the thermoelectric converter 1001 as shown in FIG. 4 were obtained. Curve A is a power generation characteristic when the outside air temperature is 18 ° C., and the peak voltage reaches 1.2 V about 15 seconds after immediately after carrying, and shows 0.4 V even in a steady state. Curve B is data at an outside air temperature of 22 ° C, and curve C is at 28 ° C. In either case,
It was shown to be above 0.2 V and had enough output to drive the watch.
【0017】さらに、時計としての耐衝撃性について
は、実施例1と同様、落下試験を行った。落下試験は、
裏蓋面、ガラス面、12時方向、3時方向、6時方向、
9時方向を落下方向として、1mの高さからコンクリー
ト上へ落下することにより行ったが、いずれの方向の試
験においても、熱電変換装置には何ら損傷はなかった。
以上、本発明による熱電変換装置によれば、耐衝撃性に
優れ、熱電性能としても十分なものとして作用する。Further, as for the impact resistance of the timepiece, a drop test was performed in the same manner as in Example 1. The drop test is
Back cover surface, glass surface, 12 o'clock direction, 3 o'clock direction, 6 o'clock direction,
The test was performed by dropping the concrete from a height of 1 m onto the concrete with the 9 o'clock direction as the drop direction, but there was no damage to the thermoelectric converter in any of the tests.
As described above, according to the thermoelectric conversion device according to the present invention, the shock resistance is excellent, and the thermoelectric device works as a sufficient thermoelectric device.
【0018】[0018]
【発明の効果】本発明の熱電変換装置によれば、耐衝撃
性に優れるばかりでなく、高温、高湿度等の耐環境性に
も優れたものを提供することができる。また、腕時計等
の小型携帯機器のエネルギー源として使用することが出
来ると同時に高信頼性を有するペルチェ素子、すなわ
ち、冷却素子としても使用できることもできる。According to the thermoelectric conversion device of the present invention, it is possible to provide a thermoelectric conversion device which is not only excellent in impact resistance but also excellent in environmental resistance such as high temperature and high humidity. Further, it can be used as an energy source of a small portable device such as a wristwatch, and can also be used as a Peltier device having high reliability, that is, a cooling device.
【図1】本発明に係わる熱電変換装置の縦断面図であ
る。FIG. 1 is a longitudinal sectional view of a thermoelectric converter according to the present invention.
【図2】本発明に係わる熱電変換素子の製造工程の概略
を示す図である。FIG. 2 is a view schematically showing a manufacturing process of the thermoelectric conversion element according to the present invention.
【図3】本発明に係わる熱電変換装置が腕時計に組み込
まれた場合の腕時計主用部の断面を示した図である。FIG. 3 is a diagram showing a cross section of a main part of a wristwatch when the thermoelectric conversion device according to the present invention is incorporated in a wristwatch.
【図4】腕時計に組み込まれた本発明の熱電変換装置の
発電性能を表した図表である。FIG. 4 is a table showing the power generation performance of the thermoelectric converter of the present invention incorporated in a wristwatch.
1001 熱電変換装置 1002 第1基板 1003 第2基板 1004 P型熱電エレメント 1005 N型熱電エレメント 1006 第1電極 1007 第2電極 1008 樹脂 1010 第1吸放熱板 1011 第2吸放熱板 1012 断熱構造体 1013 接着剤層 1014 シリコーンコンパウンド 1001 Thermoelectric conversion device 1002 First substrate 1003 Second substrate 1004 P-type thermoelectric element 1005 N-type thermoelectric element 1006 First electrode 1007 Second electrode 1008 Resin 1010 First heat absorbing and dissipating plate 1011 Second heat absorbing and dissipating plate 1012 Heat insulating structure 1013 Adhesion Agent layer 1014 Silicone compound
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山本 三七男 千葉県千葉市美浜区中瀬1丁目8番地 株 式会社エスアイアイ・アールディセンター 内 (72)発明者 根本 裕彦 千葉県千葉市美浜区中瀬1丁目8番地 株 式会社エスアイアイ・アールディセンター 内 (72)発明者 濱尾 尚範 千葉県千葉市美浜区中瀬1丁目8番地 株 式会社エスアイアイ・アールディセンター 内 (72)発明者 万代 雅昭 千葉県千葉市美浜区中瀬1丁目8番地 株 式会社エスアイアイ・アールディセンター 内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Michio Yamamoto 1-8 Nakase, Mihama-ku, Chiba City, Chiba Prefecture Inside SII RRD Center Co., Ltd. (72) Inventor Hirohiko Nemoto Mihama-ku, Chiba City, Chiba Prefecture 1-8 Nakase, SII IRD Center Co., Ltd. (72) Inventor Naohan Hamao 1-8-8 Nakase, Mihama-ku, Chiba City, Chiba Prefecture SII IRD Center Co., Ltd. (72) Masaaki Bandai, Inventor 1-8-8 Nakase, Mihama-ku, Chiba Pref.
Claims (2)
ントと、 N型熱電材料からなる複数のN型エレメントと前記P型
及びN型エレメントを一対ずつ接合してPN接合対を形
成するための電極をそれぞれに有するとともに、互いに
対向して前記P型及びN型エレメントを挟持する第1基
板及び第2基板と、 前記第1基板に接続される第1吸放熱板と、 前記第2基板に接続される第2吸放熱板と、 前記第1吸放熱板と前記第2吸放熱板とを接続する補強
部材と、を備えることを特徴とする熱電変換装置。1. A PN junction pair formed by joining a plurality of P-type elements made of a P-type thermoelectric material, a plurality of N-type elements made of an N-type thermoelectric material, and a pair of the P-type and N-type elements. A first substrate and a second substrate, each of which has a first electrode and a second substrate, the first substrate and the second substrate sandwiching the P-type and N-type elements facing each other; a first heat radiation plate connected to the first substrate; A thermoelectric conversion device, comprising: a second heat absorbing and dissipating plate connected to the first member; and a reinforcing member for connecting the first heat absorbing and dissipating plate to the second heat absorbing and dissipating plate.
間、または、前記第2基板と前記第2吸放熱板との間
の、少なくとも一方にチキソトロピー性を有する接合剤
層を有することを特徴とする請求項1に記載の熱電変換
装置。2. A thixotropy bonding agent layer is provided on at least one of between the first substrate and the first heat absorbing and dissipating plate or between the second substrate and the second heat absorbing and dissipating plate. The thermoelectric conversion device according to claim 1, wherein:
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JP35308698A JP3556494B2 (en) | 1998-12-11 | 1998-12-11 | Thermoelectric converter |
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JP2005268555A (en) * | 2004-03-19 | 2005-09-29 | Citizen Watch Co Ltd | Thermoelectric element and manufacturing method thereof |
CN102158139A (en) * | 2011-03-11 | 2011-08-17 | 中国人民解放军国防科学技术大学 | Solar radiant heat energy generating set on water surface |
WO2013027749A1 (en) * | 2011-08-23 | 2013-02-28 | 独立行政法人産業技術総合研究所 | Cooker having power generating function |
JP2013140883A (en) * | 2012-01-05 | 2013-07-18 | Futaba Industrial Co Ltd | Thermoelectric generator |
WO2022050820A1 (en) * | 2020-09-07 | 2022-03-10 | 엘지이노텍 주식회사 | Thermoelectric module and power generating apparatus comprising same |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005268555A (en) * | 2004-03-19 | 2005-09-29 | Citizen Watch Co Ltd | Thermoelectric element and manufacturing method thereof |
CN102158139A (en) * | 2011-03-11 | 2011-08-17 | 中国人民解放军国防科学技术大学 | Solar radiant heat energy generating set on water surface |
WO2013027749A1 (en) * | 2011-08-23 | 2013-02-28 | 独立行政法人産業技術総合研究所 | Cooker having power generating function |
JP2013042862A (en) * | 2011-08-23 | 2013-03-04 | National Institute Of Advanced Industrial Science & Technology | Cooking device with power generation capability |
JP2013140883A (en) * | 2012-01-05 | 2013-07-18 | Futaba Industrial Co Ltd | Thermoelectric generator |
WO2022050820A1 (en) * | 2020-09-07 | 2022-03-10 | 엘지이노텍 주식회사 | Thermoelectric module and power generating apparatus comprising same |
US12324354B2 (en) | 2020-09-07 | 2025-06-03 | Lg Innotek Co., Ltd. | Thermoelectric module and power generating apparatus comprising same |
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