JP2542498B2 - Method for manufacturing thermoelectric element for electronic wrist watch - Google Patents
Method for manufacturing thermoelectric element for electronic wrist watchInfo
- Publication number
- JP2542498B2 JP2542498B2 JP61214341A JP21434186A JP2542498B2 JP 2542498 B2 JP2542498 B2 JP 2542498B2 JP 61214341 A JP61214341 A JP 61214341A JP 21434186 A JP21434186 A JP 21434186A JP 2542498 B2 JP2542498 B2 JP 2542498B2
- Authority
- JP
- Japan
- Prior art keywords
- thermoelectric material
- heat
- thermoelectric element
- material layer
- wrist watch
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/01—Manufacture or treatment
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electromechanical Clocks (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電子腕時計のエネルギー源として利用する熱
電素子の製造方法に関するものである。TECHNICAL FIELD The present invention relates to a method for manufacturing a thermoelectric element used as an energy source for an electronic wrist watch.
本発明は得られる温度差が小さく、限られた素子容積
のため微細な熱電材料を数千個も形成する必要がある電
子腕時計用熱電素子の製造方法において、断熱耐熱性基
板に厚膜法で熱電材料を形成し、これを未焼結状態で積
層し、その後、焼結を行ない、このようにして得た積層
焼結体を一定間隔で分離し、その後電極を形成すること
で、性能のすぐれた熱電素子を簡易に製造することを可
能とするものである。INDUSTRIAL APPLICABILITY The present invention is a method for manufacturing a thermoelectric element for an electronic wristwatch in which a small temperature difference can be obtained and thousands of fine thermoelectric materials must be formed due to a limited element volume. By forming a thermoelectric material, stacking it in a non-sintered state, and then performing sintering, the laminated sintered body thus obtained is separated at regular intervals, and then electrodes are formed to improve performance. This makes it possible to easily manufacture an excellent thermoelectric element.
電子腕時計において、体温を利用した熱電素子と大容
量コンデンサや２次電池との組合わせにより半永久電源
を得ることができる。In an electronic wristwatch, a semi-permanent power supply can be obtained by combining a thermoelectric element utilizing body temperature with a large-capacity capacitor or a secondary battery.
ところが腕時計においては熱電素子の得ることのでき
る温度差は１〜３℃と小さく、しかもその面積は最大６
cm2程度が限度である。However, in a wristwatch, the temperature difference that can be obtained by the thermoelectric element is as small as 1 to 3 ° C, and the area is 6 at maximum.
The limit is about cm 2 .
常温付近で最もすぐれた性能指数をもつものとして(B
i,Sb)2(Te,Se)3系熱電材料があるが、この材料でもＮ形
およびＰ形ともゼーベック係数は200μV/K程度であり、
従ってたとえば温度差２℃で電圧2Vを得るには５千個も
の素子が必要となる。As the one with the best figure of merit at around room temperature (B
There are i, Sb) 2 (Te, Se) 3 based thermoelectric materials, but these materials also have Seebeck coefficient of about 200 μV / K for both N type and P type.
Therefore, for example, to obtain a voltage of 2V with a temperature difference of 2 ° C., 5000 elements are required.
このような微細で数多い素子を１個１個組立てること
は不可能であるため、たとえば、昭和61年電気学会全国
大会講演論文集No.1194にみられるように厚膜法を利用
することが考えられる。Since it is impossible to assemble such many minute and many elements one by one, it is considered to use the thick film method as shown in, for example, Proc. To be
熱電素子の製造方法として(Bi,Sb)2(Te,Se)3系熱電材
料を厚膜法で形成する場合、500℃程度の比較的低温で
の非酸化性雰囲気での焼結となり、良好な溶剤ならびに
結合剤が使用できず、その形状制御性及び寸法精度は悪
く、また基板としてガラスなどを使用することとなり、
有機樹脂のような熱伝導率の極めて小さいものが使用で
きず、温度差がとれにくくなり、更に電極の同時焼成も
困難である。When a (Bi, Sb) 2 (Te, Se) 3 -based thermoelectric material is formed by a thick film method as a method for manufacturing a thermoelectric element, sintering is performed in a non-oxidizing atmosphere at a relatively low temperature of about 500 ° C, which is good. It is not possible to use various solvents and binders, its shape controllability and dimensional accuracy are poor, and glass etc. will be used as the substrate,
It is not possible to use a material having extremely low thermal conductivity such as an organic resin, it is difficult to obtain a temperature difference, and it is also difficult to simultaneously fire the electrodes.
本発明では断熱耐熱性基板に厚膜法により全面に熱電
材料層を形成し、これを積層し、焼結を行ない、この焼
結体を一定間隔で分離して、その後、電極を形成する。In the present invention, a thermoelectric material layer is formed on the entire surface of a heat-insulating and heat-resistant substrate by a thick film method, the thermoelectric material layers are laminated and sintered, the sintered bodies are separated at regular intervals, and then electrodes are formed.
断熱耐熱性基板に全面に熱電材料層を形成するだけで
よく、厚膜法の寸法精度や形状制御性が重要でなく、か
つ、一定間隔で分離した後、空隙部を空気層や熱伝導率
の小さな有機樹脂で充填することで温度差が生じやすく
なり、かつ電極も焼結後に簡単に形成できる。It is only necessary to form a thermoelectric material layer on the entire surface of a heat-insulating and heat-resistant substrate, the dimensional accuracy and shape controllability of the thick film method are not important, and after separating at regular intervals, the air gap and thermal conductivity of the air gap By filling with an organic resin having a small size, a temperature difference easily occurs, and the electrode can be easily formed after sintering.
以下図面により説明する。 This will be described below with reference to the drawings.
第１図に部分断面図に示すように断熱耐熱性基板とし
て、0.1mm厚みの石英ガラス１に熱電材料２を焼結後0.1
5mmの厚みになるように形成した。As shown in the partial cross-sectional view of FIG. 1, as a heat-resistant and heat-resistant substrate, 0.1 mm thick quartz glass 1 was used to sinter the thermoelectric material 2 to 0.1.
It was formed to have a thickness of 5 mm.
熱電材料は(Bi,Sb)2(Te,Se)3系の原料粉末にプロピレ
ングリコールを溶剤として加え、スクリーン印刷により
形成した。The thermoelectric material was formed by screen printing by adding propylene glycol as a solvent to (Bi, Sb) 2 (Te, Se) 3 based raw material powder.
このように熱電材料を形成した石英ガラスを次に第２
図に部分平面図に示すようにＮ形熱電材料３とＰ形熱電
材料４とが交互になるよう積層し、窒素雰囲気中で470
℃で焼結した。The quartz glass on which the thermoelectric material is formed is then
As shown in the partial plan view in the figure, N-type thermoelectric material 3 and P-type thermoelectric material 4 are laminated alternately so as to be 470 in a nitrogen atmosphere.
Sintered at ° C.
このようにして得た積層焼結体を台盤上に固定し、第
３図に部分平面図に示すように0.1mmの幅で0.2mmの間隔
で切断した。The laminated sintered body thus obtained was fixed on a pedestal and cut at a width of 0.1 mm at intervals of 0.2 mm as shown in the partial plan view of FIG.
更に第４図に部分平面図に示すように周囲を0.2mm幅
の有機樹脂で囲い、電極形成のため、１部の熱電材料に
絶縁被覆６を施した。Further, as shown in the partial plan view of FIG. 4, the periphery was surrounded by an organic resin having a width of 0.2 mm, and a part of the thermoelectric material was coated with an insulating coating 6 for electrode formation.
そのあと第５図に部分平面図に示すように電極７を形
成し、更に第６図に部分断面図に示すように電極の上に
絶縁層８を形成し、その上に伝熱板９を接着した。この
あと台盤より、積層体をはがし、反対側に同様に電極
７、絶縁層８、伝熱板９を形成して、熱電素子を完成し
た。After that, an electrode 7 is formed as shown in a partial plan view in FIG. 5, and an insulating layer 8 is further formed on the electrode as shown in a partial sectional view in FIG. 6, and a heat transfer plate 9 is formed thereon. Glued Then, the laminated body was peeled off from the base, and the electrode 7, the insulating layer 8 and the heat transfer plate 9 were similarly formed on the opposite side to complete the thermoelectric element.
断熱耐熱性基板としては石英ガラスの他に他のガラ
ス、磁器、雲母などでもよい。Other than quartz glass, other glass, porcelain, mica, etc. may be used as the heat insulating and heat resistant substrate.
また素子間の空隙にはエポキシ樹脂などの有機樹脂を
充填してもかまわない。The voids between the elements may be filled with an organic resin such as epoxy resin.
電極形成方法としては金属箔を接合し、エッチングで
所定のパターンにしたり、スパッタや無電解めっきなど
が利用できる。As an electrode forming method, a metal foil may be joined and a predetermined pattern may be formed by etching, or sputtering or electroless plating may be used.
以上述べたように本発明によれば厚膜法により基板上
に熱電材料を形成し、これを積層し、焼結し、これを一
定間隔で切断し、空気層の形成や有機樹脂の充填により
低熱伝導率層を形成することにより、小形で高集積で温
度差のとりやすい電子腕時計用熱電素子を厚膜法で簡易
に製造できる。As described above, according to the present invention, the thermoelectric material is formed on the substrate by the thick film method, laminated, sintered and cut at regular intervals to form an air layer or fill an organic resin. By forming the low thermal conductivity layer, it is possible to easily manufacture a thermoelectric element for an electronic wrist watch which is small in size, highly integrated, and has a temperature difference easily by a thick film method.
第１図は石英ガラス上への熱電材料の形成状態を示す部
分断面図であり、第２図は積層状態を示す部分平面図で
あり、第３図及び第４図は積層焼結体の切断状態を示す
部分平面図であり、第５図は電極形成状態を示す部分平
面図であり、第６図は完成状態を示す部分断面図であ
る。 １……石英ガラス ２……熱電材料 ３……Ｎ形熱電材料 ４……Ｐ形熱電材料 ５……有機樹脂 ６……絶縁被覆 ７……電極 ８……絶縁層 ９……伝熱板FIG. 1 is a partial cross-sectional view showing a formation state of a thermoelectric material on quartz glass, FIG. 2 is a partial plan view showing a laminated state, and FIGS. 3 and 4 are cutting of a laminated sintered body. 5 is a partial plan view showing a state, FIG. 5 is a partial plan view showing an electrode formation state, and FIG. 6 is a partial sectional view showing a completed state. 1 ... Quartz glass 2 ... Thermoelectric material 3 ... N-type thermoelectric material 4 ... P-type thermoelectric material 5 ... Organic resin 6 ... Insulating coating 7 ... Electrode 8 ... Insulating layer 9 ... Heat transfer plate
Claims (1)
に熱電材料層を形成し、このような熱電材料層を形成し
た断熱耐熱性基板をＮ形熱電材料層とＰ形熱電材料層が
交互になるように積層し、その後焼結を行ない、このよ
うにして得た積層焼結体を積層面に垂直でかつ、温度差
を与える方向に平行に一定間隔で切断等により分離し、
その後電極を形成することを特徴とする電子腕時計用熱
電素子の製造方法。1. A thermoelectric material layer is formed on one surface of a heat-insulating heat-resistant substrate by a thick film method, and the heat-insulating heat-resistant substrate having such a thermoelectric material layer is used as an N-type thermoelectric material layer and a P-type thermoelectric material layer. Are alternately laminated, and then sintered, and the laminated sintered body thus obtained is separated by cutting or the like at a constant interval in a direction perpendicular to the lamination surface and parallel to the direction giving a temperature difference,
A method of manufacturing a thermoelectric element for an electronic wristwatch, characterized by forming electrodes thereafter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61214341A JP2542498B2 (en) | 1986-09-11 | 1986-09-11 | Method for manufacturing thermoelectric element for electronic wrist watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61214341A JP2542498B2 (en) | 1986-09-11 | 1986-09-11 | Method for manufacturing thermoelectric element for electronic wrist watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6370465A JPS6370465A (en) | 1988-03-30 |
| JP2542498B2 true JP2542498B2 (en) | 1996-10-09 |
Family
ID=16654158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61214341A Expired - Fee Related JP2542498B2 (en) | 1986-09-11 | 1986-09-11 | Method for manufacturing thermoelectric element for electronic wrist watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2542498B2 (en) |
-
1986
- 1986-09-11 JP JP61214341A patent/JP2542498B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6370465A (en) | 1988-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3780425A (en) | Thermoelectric units | |
| US6127619A (en) | Process for producing high performance thermoelectric modules | |
| US10510940B2 (en) | Thermoelectric generator | |
| US4032363A (en) | Low power high voltage thermopile | |
| TW432401B (en) | Method of producing thermistor chips | |
| JP5598152B2 (en) | Thermoelectric conversion module and manufacturing method thereof | |
| JP2003133600A (en) | Thermoelectric conversion member and manufacturing method therefor | |
| JP2924177B2 (en) | Functionally graded circuit board | |
| JP4668233B2 (en) | Thermoelectric conversion element, thermoelectric conversion module, and method of manufacturing thermoelectric conversion module | |
| JP2542498B2 (en) | Method for manufacturing thermoelectric element for electronic wrist watch | |
| JP2602646B2 (en) | Manufacturing method of thermoelectric element for electronic watch | |
| US3775218A (en) | Method for the production of semiconductor thermoelements | |
| JP2544118B2 (en) | Method for manufacturing thermoelectric element for electronic wrist watch | |
| JP2654504B2 (en) | Manufacturing method of thermoelectric element for electronic watch | |
| JP2542502B2 (en) | Thermoelectric element manufacturing method | |
| JPS63226980A (en) | Manufacture of thermoelectric element for electronic wrist watch | |
| JP2542497B2 (en) | Method for manufacturing thermoelectric element for electronic wrist watch | |
| JPH0828531B2 (en) | Method for manufacturing thermoelectric element for electronic wrist watch | |
| JP2527541B2 (en) | Method for manufacturing thermoelectric element for electronic wrist watch | |
| JP2756960B2 (en) | Manufacturing method of thermoelectric element for electronic watch | |
| JPH01165183A (en) | Manufacture of thermoelectric device | |
| JPH085572Y2 (en) | Thermoelectric element | |
| JPS5864075A (en) | Manufacture of thermopile | |
| JP3248294B2 (en) | Chip inductor and manufacturing method thereof | |
| JPH02178958A (en) | Electronic cooling element and manufacture thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |