JPH08186299A - Method and apparatus for manufacture of thermoelectric conversion element - Google Patents
Method and apparatus for manufacture of thermoelectric conversion elementInfo
- Publication number
- JPH08186299A JPH08186299A JP6327112A JP32711294A JPH08186299A JP H08186299 A JPH08186299 A JP H08186299A JP 6327112 A JP6327112 A JP 6327112A JP 32711294 A JP32711294 A JP 32711294A JP H08186299 A JPH08186299 A JP H08186299A
- Authority
- JP
- Japan
- Prior art keywords
- thermoelectric conversion
- conversion element
- powder
- hole
- conductor
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 111
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title description 12
- 239000000843 powder Substances 0.000 claims abstract description 42
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims description 23
- 239000011888 foil Substances 0.000 claims description 21
- 238000003825 pressing Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、熱電変換素子の製造方
法及び製造装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a thermoelectric conversion element.
【０００２】[0002]
【従来の技術】従来、熱電変換素子の製造方法として
は、特開平３−１６２８１号公報に開示される技術が知
られている。これは、粒径の揃えられた粉末を真空中又
は不活性ガス中で一方向に加圧しながら、加熱する方法
により粉末焼結体の熱電変換素子を形成するものであ
る。その後、この粉末焼結体を任意の大きさに切断す
る。2. Description of the Related Art Conventionally, as a method of manufacturing a thermoelectric conversion element, the technology disclosed in Japanese Patent Laid-Open No. 3-16281 is known. This is a method for forming a thermoelectric conversion element of a powder sintered body by a method of heating a powder having a uniform particle size in a vacuum or in an inert gas while pressing it in one direction. Then, this powder sintered body is cut into an arbitrary size.
【０００３】[0003]
【発明が解決しようとする課題】上記した従来技術にお
いては、ある程度大きな粉末焼結体を形成した後に任意
の大きさに切断するものであるために切り粉が発生し
て、材料費が無駄となる問題があった。又、粉末焼結体
の大きな固まりを細かく切断するので、粉末焼結体を成
形する際に均一に圧力を掛けることは困難でありその熱
電変換素子のチップが固まりのどこの部分を形成してい
たかによって性能が異なり、性能のばらつきが大きいと
いう問題となる。In the above-mentioned prior art, since a powder sintered body of a certain size is formed and then cut to an arbitrary size, cutting powder is generated, resulting in waste of material cost. There was a problem. Further, since a large mass of the powder sintered body is cut into small pieces, it is difficult to apply uniform pressure when molding the powder sintered body, and the chip of the thermoelectric conversion element forms which part of the mass. There is a problem in that the performance varies depending on the temperature, and there is a large variation in the performance.
【０００４】本発明は、材料費の無駄を無くすと共に、
性能のばらつきが小さい熱電変換素子の製造方法及び製
造装置を提供することを技術的課題とする。The present invention eliminates waste of material costs and
It is a technical object to provide a method and an apparatus for manufacturing a thermoelectric conversion element having a small variation in performance.
【０００５】[0005]
【課題を解決するための手段】上記した技術的課題を解
決するため請求項１の発明において講じた技術的手段
は、大小の開口部と該大小の開口部を繋ぐテーパ部とを
有して押し出し型を貫通する貫通孔内に熱電変換素子の
粉を投入し、熱電変換素子の粉を加熱しながら大きい方
の開口部から熱電変換素子の粉を加圧して、小さい方の
開口部より熱電変換素子を押し出し、予め小さい方の開
口部の対向した位置に配設され小さい方の開口部と形状
及び大きさが略同一の凹部を有する可動型内に、小さい
方の開口部より押し出された熱電変換素子が導入された
後、可動型を貫通孔の軸方向に直交する方向に移動させ
て熱電変換素子を切断することである。In order to solve the above-mentioned technical problem, the technical means taken in the invention of claim 1 has large and small openings and a taper portion connecting the large and small openings. Put the powder of the thermoelectric conversion element into the through hole that penetrates the extrusion mold, press the powder of the thermoelectric conversion element from the larger opening while heating the powder of the thermoelectric conversion element, and apply the thermoelectric power from the smaller opening. The conversion element was extruded and extruded from the smaller opening into a movable mold which was previously disposed at a position opposite to the smaller opening and had a recess whose shape and size were substantially the same as those of the smaller opening. After the thermoelectric conversion element is introduced, the movable die is moved in a direction orthogonal to the axial direction of the through hole to cut the thermoelectric conversion element.
【０００６】熱電変換素子に電極をはんだ付け可能とす
べく熱伝導率の良好な導電体を固着するが、この作業を
連続的に行うことができるようにするために、請求項２
の発明において講じた技術的手段は、可動型に熱電変換
素子が導入される前に予め可動型の凹部の底面に導電体
の第１の箔又は粉を設置し、更に可動型に熱電変換素子
が導入されて可動型を移動させ熱電変換素子を切断した
後に、熱電変換素子の切断面に導電体の第２の箔又は粉
を設置して、熱電変換素子と導電体の箔又は粉とを焼結
することである。An electric conductor having a good thermal conductivity is fixed to the thermoelectric conversion element so that the electrode can be soldered, and in order to enable this work to be carried out continuously,
The technical means taken in the invention is that the first foil or powder of a conductor is previously installed on the bottom surface of the concave portion of the movable die before the thermoelectric conversion element is introduced into the movable die, and the thermoelectric conversion element is further provided on the movable die. Is introduced to move the movable mold to cut the thermoelectric conversion element, and then install a second foil or powder of a conductor on the cut surface of the thermoelectric conversion element to separate the thermoelectric conversion element and the foil or powder of the conductor. It is to sinter.
【０００７】熱電変換素子が粉状であると、表面積が大
きいために酸化し易く、成形後の熱電変換素子の性能に
影響がでる。又、落としたときに散らかるため、掃除が
大変面倒なものとなる。このため、請求項３の発明にお
いて講じた技術的手段は、圧力を加えて固めた熱電変換
素子を貫通孔内に投入することである。If the thermoelectric conversion element is in powder form, it has a large surface area and is easily oxidized, so that the performance of the thermoelectric conversion element after molding is affected. In addition, since it is messy when dropped, cleaning is very troublesome. Therefore, the technical means taken in the invention of claim 3 is to put the thermoelectric conversion element, which is hardened by applying pressure, into the through hole.
【０００８】請求項４の発明において講じた技術的手段
は、熱電変換素子の押し出し型と、大小の開口部と該大
小の開口部を繋ぐテーパ部とを有した貫通孔と、該貫通
孔内に投入された前記熱電変換素子の粉を大きい方の前
記開口部より押圧する押圧手段と、該押圧手段にて前記
熱電変換素子の粉を押圧するときに前記熱電変換素子の
粉を加熱する加熱手段と、小さい方の前記開口部に対向
した位置に配設され小さい方の前記開口部と形状及び大
きさが略同一の凹部を有する可動型とを備えたことを特
徴とする熱電変換素子の製造装置。According to a fourth aspect of the present invention, there is provided technical means, a thermoelectric conversion element of an extrusion type, a through hole having a large opening and a small opening, and a taper portion connecting the large opening and the small opening, and the inside of the through hole. Pressing means for pressing the powder of the thermoelectric conversion element introduced into the larger opening portion, and heating for heating the powder of the thermoelectric conversion element when pressing the powder of the thermoelectric conversion element by the pressing means. A thermoelectric conversion element, comprising: a means and a movable die which is disposed at a position facing the smaller opening and has a recess whose shape and size are substantially the same as those of the smaller opening. Manufacturing equipment.
【０００９】熱電変換素子に電極をはんだ付け可能とべ
く熱伝導率の良好な導電体を固着するが、この作業を連
続的に行うことができるようにするために、請求項５の
発明において講じた技術的手段は、可動型に熱電変換素
子が導入される前から予め可動型の凹部の底面に設置さ
れた導電体の第１の箔又は粉と、可動型に熱電変換素子
が導入されて可動型を移動させ熱電変換素子を切断した
後に熱電変換素子の切断面に設置される導電体の第２の
箔又は粉と、熱電変換素子と導電体の第１及び第２の箔
又は粉とを焼結する焼結手段とを備えたことである。An electric conductor having a good thermal conductivity is fixed to the thermoelectric conversion element so that the electrode can be soldered, and in order to enable this work to be performed continuously, the invention of claim 5 is adopted. The technical means is that, before the thermoelectric conversion element is introduced into the movable die, the first foil or powder of the conductor, which is previously installed on the bottom surface of the concave portion of the movable die, and the thermoelectric conversion element is introduced into the movable die. A second foil or powder of a conductor, which is installed on the cut surface of the thermoelectric conversion element after moving the movable die to cut the thermoelectric conversion element, and first and second foils or powders of the thermoelectric conversion element and the conductor. And a sintering means for sintering.
【００１０】熱電変換素子が粉状であると、表面積が大
きいために酸化し易く、成形後の熱電変換素子の性能に
影響がでる。又、落としたときに散らかるために掃除が
大変面倒で、取扱に注意が必要である。このため、請求
項６の発明において講じた技術的手段は、貫通孔内に投
入する前の粉状の熱電変換素子に圧力を加える加圧手段
を備えたことである。If the thermoelectric conversion element is powdery, it has a large surface area and is easily oxidized, which affects the performance of the thermoelectric conversion element after molding. Also, cleaning is very troublesome because it is messy when dropped, and care must be taken when handling. Therefore, the technical means taken in the invention of claim 6 is to provide a pressurizing means for applying a pressure to the powdery thermoelectric conversion element before being put into the through hole.
【００１１】[0011]
【作用】請求項１及び請求項４の発明においては、貫通
孔内に投入された熱電変換素子の粉が、加熱されながら
押圧されることにより焼結されて小さい方の開口部より
押し出される。押し出された熱電変換素子は可動型内に
導入され、可動型が貫通孔の軸方向に直交する方向に移
動することによって、小さい方の開口部から連続的に押
し出される熱電変換素子は一個単位で剪断され、可動型
一基に一個の熱電変換素子のチップが製造されることに
なる。In the inventions of claims 1 and 4, the powder of the thermoelectric conversion element put into the through hole is sintered by being pressed while being heated and extruded from the smaller opening. The extruded thermoelectric conversion element is introduced into the movable mold, and the movable mold moves in a direction orthogonal to the axial direction of the through hole, whereby the thermoelectric conversion element continuously extruded from the smaller opening is a unit. It is sheared, and one thermoelectric conversion element chip is manufactured for each movable mold.
【００１２】請求項２及び請求項５の発明においては、
可動型の凹部内に収納されたままの状態で、導電体の第
１及び第２の箔（又は粉）を焼結するものであるため、
連続的な作業が可能である。In the inventions of claims 2 and 5,
Since the first and second foils (or powders) of the conductor are sintered while being stored in the movable concave portion,
Continuous work is possible.
【００１３】請求項３及び請求項６の発明においては、
熱電変換素子が押し出し型の貫通孔内に投入される前に
圧力を掛けて固まらせるので、表面積を小さくすること
ができて酸化の進行を抑えることができると共に、落と
したときに散らかるのを抑えることができるので、掃除
も簡単にすることができて取扱も楽なものとなる。In the inventions of claims 3 and 6,
Since the thermoelectric conversion element is pressed and solidified before being put into the extrusion type through-hole, the surface area can be reduced and the progress of oxidation can be suppressed, and the scattering when dropped is suppressed. Since it is possible, cleaning is easy and handling is easy.
【００１４】[0014]
【実施例】本発明に係る一実施例を図面に基づいて説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
【００１５】図１は、本実施例の熱電変換素子の製造工
程を表した工程図である。同図において、先ず熱電変換
素子に加圧手段により圧力をかけて固めるが、固めた後
の固まり１０の大きさは押し出し型１１の貫通孔の大き
い方の開口部１２ａ内に投入可能な大きさとする。尚、
加圧手段は、シリンダ２０とピストン２１とにより構成
され、シリンダ２０内に熱電変換素子の粉を投入し、ピ
ストン２１により加圧するようになっている。FIG. 1 is a process diagram showing the manufacturing process of the thermoelectric conversion element of this embodiment. In the figure, first, pressure is applied to the thermoelectric conversion element by a pressurizing means to solidify it, and the size of the solidified mass 10 is such that it can be put into the opening 12a of the extrusion die 11 having the larger through hole. To do. still,
The pressurizing means is composed of a cylinder 20 and a piston 21, and the powder of the thermoelectric conversion element is put into the cylinder 20 to be pressurized by the piston 21.
【００１６】熱電変換素子の粉の製造方法は、次に示す
通りである。ガラス管内にビスマス（Ｂｅ）、テルル
（Ｔｅ）、セレン（Ｓｅ）を混入させた後に、ガラス管
内を真空とし、加熱して溶かす。溶けた内容物を均一に
混ぜたのち、冷却して固める。The method for producing the powder of the thermoelectric conversion element is as follows. After mixing bismuth (Be), tellurium (Te), and selenium (Se) into the glass tube, the inside of the glass tube is evacuated and heated to melt. After uniformly mixing the melted contents, cool and solidify.
【００１７】固まったものの上部付近を取り除き、ガラ
ス管内に残ったものを砕いて粉にする。The area around the upper part of the solidified material is removed, and the material remaining in the glass tube is crushed into powder.
【００１８】熱電変換素子の固まり１０は、加熱手段を
構成するヒーター１４により予め加熱された押し出し型
１１の、貫通孔の大きい方の開口部１２ａに投入され
る。投入後、押圧手段を構成する油圧作動のピストン１
３により、熱電変換素子の固まり１０に一定の押圧力が
加えられる。The mass 10 of the thermoelectric conversion element is put into the opening 12a having the larger through hole of the extrusion die 11 which is preheated by the heater 14 constituting the heating means. After the injection, the hydraulically actuated piston 1 constituting the pressing means
Due to 3, a constant pressing force is applied to the mass 10 of thermoelectric conversion elements.
【００１９】熱電変換素子の固まり１０は、加熱されな
がら押圧力が加えられるために焼結し、焼結後の熱電変
換素子は貫通孔の小さい方の開口１２ｃから、予め小さ
い方の開口部１２ｃの対向した位置に配設され小さい方
の開口部１２ｃと形状及び大きさが略同一の凹部１５ａ
に導入される。熱電変換素子の固まり１０は、貫通孔の
大きい方の開口部１２ａに投入されていて、ピストン１
３により押圧力が加えられるとテーパ部１２ｂで更に圧
縮されながら図中下方に押し出されていく。テーパ部１
２ｂにおいては、熱電変換素子の固まり１０は貫通孔の
軸側へ掛かる圧力と図中下方へ掛かる圧力とが発生し、
熱電変換素子の結晶としては図中上下方向に結晶が生成
される。The mass 10 of the thermoelectric conversion element is sintered due to the pressing force being applied while being heated, and the thermoelectric conversion element after sintering starts from the smaller opening 12c of the through-hole to the smaller opening 12c in advance. 15a having the same shape and size as the smaller opening 12c disposed at the opposite position of the recess 15a.
Will be introduced to. The mass 10 of the thermoelectric conversion element is put into the opening 12a having the larger through hole, and the piston 1
When a pressing force is applied by 3, the taper portion 12b is further compressed and pushed downward in the drawing. Taper part 1
In 2b, the mass 10 of the thermoelectric conversion element generates a pressure applied to the axial side of the through hole and a pressure applied downward in the figure,
As crystals of the thermoelectric conversion element, crystals are generated in the vertical direction in the figure.
【００２０】可動型１５の凹部１５ａの底面には、貫通
孔の小さい方の開口１２ｂより焼結後の熱電変換素子が
導入される前に、熱伝導率の高い導電体（例えばニッケ
ルや銅）の第１の箔（又は粉）１６が設置されて、その
上に熱電変換素子が導入される。可動型１５は、凹部１
５ａ内に熱電変換素子が導入されると、貫通孔の軸方向
と直交する方向に移動して、熱電変換素子を剪断する。
すると、可動型１５内には、熱電変換素子のチップ１０
ａが一個収納されていることになっている。Before the sintered thermoelectric conversion element is introduced into the bottom surface of the recess 15a of the movable mold 15 through the opening 12b having the smaller through hole, a conductor having a high thermal conductivity (eg nickel or copper). 1st foil (or powder) 16 is installed, and a thermoelectric conversion element is introduced on it. The movable mold 15 has a recess 1
When the thermoelectric conversion element is introduced into 5a, it moves in a direction orthogonal to the axial direction of the through hole to shear the thermoelectric conversion element.
Then, the chip 10 of the thermoelectric conversion element is provided in the movable mold 15.
One a is supposed to be stored.
【００２１】熱電変換素子のチップ１０ａの切断面に
は、導電体の第２の箔１７が設置されて、後述する焼結
手段により熱電変換素子のチップ１０ａと導電体の第１
及び第２の箔１６、１７とが焼結されて、図２に示され
るような熱電変換素子の焼結体が形成される。A second conductor foil 17 is provided on the cut surface of the thermoelectric conversion element chip 10a, and the thermoelectric conversion element chip 10a and the conductor first layer 17 are formed by sintering means described later.
And, the second foils 16 and 17 are sintered to form a sintered body of the thermoelectric conversion element as shown in FIG.
【００２２】焼結手段は、可動型１５とピストン１８と
から構成されている。更に可動型１５とピストン１８に
は、電源２２とスイッチ２３が直列に接続されていて、
可動型１５とピストン１８とで熱電変換素子のチップ１
０ａを押圧する際にスイッチ２３を閉状態として電流を
流し、そのときに発生するジュール熱により瞬間的に加
熱しながら押圧力を加える。これにより、熱電変換素子
のチップ１０ａと導電体の第１及び第２の箔１６、１７
とを焼結する。尚、熱電変換素子１０と導電体１６、１
７とを焼結する際の加熱は、電流を流すことによるジュ
ール熱を利用した方法を採用しているが、特にこれに限
定するものではなく、ヒーターや熱媒体を用いて加熱し
てもよい。The sintering means is composed of a movable die 15 and a piston 18. Further, a power source 22 and a switch 23 are connected in series to the movable mold 15 and the piston 18,
The movable mold 15 and the piston 18 form a thermoelectric conversion element chip 1
When pressing 0a, the switch 23 is closed and an electric current is applied, and a pressing force is applied while instantaneously heating by the Joule heat generated at that time. As a result, the chip 10a of the thermoelectric conversion element and the first and second foils 16 and 17 of the conductor are formed.
And sinter. Incidentally, the thermoelectric conversion element 10 and the conductors 16, 1
For the heating when sintering 7 and 7, a method using Joule heat by passing an electric current is adopted, but the method is not particularly limited to this, and heating may be performed using a heater or a heat medium. .
【００２３】更に、上記した本実施例においては、押し
出し型１１を加熱する手段としてヒーター１４を採用し
ているが、上記と同様にこれに限定するものではなく、
ジュール熱を利用した方法や、熱媒体を利用した方法を
用いてもなんら問題はない。Further, in the above-mentioned embodiment, the heater 14 is adopted as a means for heating the extrusion die 11, but the present invention is not limited to this as in the above,
There is no problem even if a method using Joule heat or a method using a heat medium is used.
【００２４】本実施例においては、小さい方の開口部よ
り押し出された熱電変換素子を可動型１５内に導入し、
可動型１５が貫通孔の軸方向に直交する方向に移動する
ことによって、小さい方の開口部から連続的に押し出さ
れる熱電変換素子を一個単位で剪断することによって、
一個の熱電変換素子のチップ１０ａを製造するものであ
るため、切り粉の発生を防止することができるために材
料を無駄にせず、材料費の無駄を無くすことができる。In this embodiment, the thermoelectric conversion element extruded from the smaller opening is introduced into the movable mold 15,
By moving the movable die 15 in the direction orthogonal to the axial direction of the through hole, shearing the thermoelectric conversion elements continuously extruded from the smaller opening by one unit,
Since one thermoelectric conversion element chip 10a is manufactured, the generation of cutting chips can be prevented, so that the material is not wasted and the waste of the material cost can be eliminated.
【００２５】又、本実施例においては、常に一定の圧力
で押し出し型より一個づつ押し出して成形しているため
に、製品毎の性能が大きくばらつくことを防止すること
ができる。Further, in the present embodiment, since the products are always extruded from the extrusion die one by one with a constant pressure, the performance of each product can be prevented from largely varying.
【００２６】又、本実施例においては、可動型１５の凹
部１５ａ内に収納されたままの状態で、導電体の第１及
び第２の箔１６、１７を焼結するものであるために、連
続的な作業が可能であり、低コスト化に寄与できる。Further, in this embodiment, since the first and second conductive foils 16 and 17 are sintered while being accommodated in the recess 15a of the movable die 15, Continuous work is possible, which can contribute to cost reduction.
【００２７】又、本実施例においては、熱電変換素子が
押し出し型１１の貫通孔の大きい方の開口部１２ａ内に
投入される前に圧力を掛けて固まらせているので、表面
積を小さくすることができて酸化の進行を抑え、性能の
低下を防止することができる。又、落としたときに散ら
かるのを抑えることができるので、掃除も簡単にするこ
とができて取扱も楽なものとなる。Further, in this embodiment, since the thermoelectric conversion element is pressed and solidified before being put into the opening 12a having the larger through hole of the extrusion die 11, the surface area should be reduced. As a result, the progress of oxidation can be suppressed and the deterioration of performance can be prevented. In addition, since it is possible to suppress clutter when dropped, cleaning can be facilitated and handling becomes easy.
【００２８】[0028]
【発明の効果】請求項１及び請求項４の発明において
は、小さい方の開口部より押し出された熱電変換素子を
可動型内に導入し、可動型が貫通孔の軸方向に直交する
方向に移動することによって、小さい方の開口部から連
続的に押し出される熱電変換素子を一個単位で剪断する
ことによって、一個の熱電変換素子のチップを製造する
ものであるため、切り粉の発生を防止することができる
ために材料費の無駄を無くすことができる。更に、常に
一定の圧力で押し出し型より一個づつ押し出して成形し
ているために、製品毎の性能が大きくばらつくことを防
止することができる。According to the inventions of claims 1 and 4, the thermoelectric conversion element extruded from the smaller opening is introduced into the movable die, and the movable die is moved in a direction orthogonal to the axial direction of the through hole. By moving, the thermoelectric conversion element that is continuously extruded from the smaller opening is sheared in units of one piece, so that chips of one thermoelectric conversion element are manufactured, so that the generation of chips is prevented. Therefore, waste of material cost can be eliminated. Furthermore, since the products are always extruded from the extrusion mold one by one with a constant pressure and molded, it is possible to prevent the performance of each product from being greatly varied.
【００２９】請求項２及び請求項５の発明においては、
可動型の凹部内に収納されたままの状態で、導電体の第
１及び第２の箔（又は粉）を焼結するものであるため、
連続的な作業が可能であり、低コスト化に寄与できる。In the inventions of claims 2 and 5,
Since the first and second foils (or powders) of the conductor are sintered while being stored in the movable concave portion,
Continuous work is possible, which can contribute to cost reduction.
【００３０】請求項３及び請求項６の発明においては、
熱電変換素子が押し出し型の貫通孔内に投入される前に
圧力を掛けて固まらせるので、表面積を小さくすること
ができて酸化の進行を抑えることができ、性能の低下防
止することができる。又、落としたときに散らかるのを
抑えることができるので、掃除も簡単にすることができ
て取扱も楽なものとなる。In the inventions of claims 3 and 6,
Since the thermoelectric conversion element is pressed and solidified before being put into the extrusion type through hole, the surface area can be reduced, the progress of oxidation can be suppressed, and the deterioration of performance can be prevented. In addition, since it is possible to suppress clutter when dropped, cleaning can be facilitated and handling becomes easy.
【図１】本発明に係る熱電変換素子の製造工程を順を追
って表した工程図を示す。1A to 1C are process diagrams sequentially showing a manufacturing process of a thermoelectric conversion element according to the present invention.
【図２】本発明の熱電変換素子の製造方法及び製造装置
により形成される熱電変換素子の外観斜視図を示す。FIG. 2 is an external perspective view of a thermoelectric conversion element formed by the method and apparatus for manufacturing a thermoelectric conversion element of the present invention.
１０・・・熱電変換素子の固まり １０・・・熱電変換素子のチップ １１・・・押し出し型 １２・・・貫通孔 １３・・・ピストン（押圧手段） １５・・・可動型（焼結手段） １５ａ・・・凹部 １６・・・導電体の第１の箔 １７・・・導電体の第２の箔 １８・・・ピストン（焼結手段） ２０・・・シリンダ（加圧手段） ２１・・・ピストン（加圧手段） 10 ... Mass of thermoelectric conversion element 10 ... Chip of thermoelectric conversion element 11 ... Extrusion type 12 ... Through hole 13 ... Piston (pressing means) 15 ... Movable type (sintering means) 15a ... Recessed portion 16 ... Conductor first foil 17 ... Conductor second foil 18 ... Piston (sintering means) 20 ... Cylinder (pressurizing means) 21 ...・ Piston (pressurizing means)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 横 井 道 治 愛知県刈谷市朝日町２丁目１番地 アイシ ン精機株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michi Yokoi Aji-in Seiki Co., Ltd. 2-1-1 Asahi-machi, Kariya city, Aichi prefecture
Claims (6)
ーパ部とを有して押し出し型を貫通する貫通孔内に熱電
変換素子の粉を投入し、前記熱電変換素子の粉を加熱し
ながら大きい方の前記開口部から前記熱電変換素子の粉
を加圧して、小さい方の前記開口部より前記熱電変換素
子を押し出し、予め小さい方の前記開口部の対向した位
置に配設され小さい方の前記開口部と形状及び大きさが
略同一の凹部を有する可動型内に、小さい方の前記開口
部より押し出された前記熱電変換素子が導入された後、
前記可動型を前記貫通孔の軸方向に直交する方向に移動
させて前記熱電変換素子を切断する、ことを特徴とする
熱電変換素子の製造方法。1. A powder of a thermoelectric conversion element is charged into a through-hole having a large and small opening portion and a taper portion connecting the large and small opening portions and penetrating an extrusion die, and the powder of the thermoelectric conversion element is heated. While pressing the powder of the thermoelectric conversion element from the larger opening, the thermoelectric conversion element is pushed out from the smaller opening, and the thermoelectric conversion element is preliminarily arranged at a position opposed to the smaller opening and is small. After the thermoelectric conversion element extruded from the smaller one of the openings is introduced into the movable mold having a recess whose shape and size are substantially the same as the one of the one of the openings,
A method of manufacturing a thermoelectric conversion element, comprising: moving the movable die in a direction orthogonal to an axial direction of the through hole to cut the thermoelectric conversion element.
れる前に予め前記可動型の前記凹部の底面に導電体の第
１の箔又は粉を設置し、更に前記可動型に前記熱電変換
素子が導入されて前記可動型を移動させ前記熱電変換素
子を切断した後に、前記熱電変換素子の切断面に導電体
の第２の箔又は粉を設置して、前記熱電変換素子と前記
導電体の箔又は粉とを焼結することを特徴とする請求項
１記載の熱電変換素子の製造方法。2. A first foil or powder of a conductor is previously installed on the bottom surface of the recess of the movable die before the thermoelectric conversion element is introduced into the movable die, and the thermoelectric conversion is further applied to the movable die. After the element is introduced and the movable mold is moved to cut the thermoelectric conversion element, a second foil or powder of a conductor is placed on the cut surface of the thermoelectric conversion element, and the thermoelectric conversion element and the conductor are placed. The method for producing a thermoelectric conversion element according to claim 1, wherein the foil or the powder of 1. is sintered.
前記貫通孔内に投入することを特徴とする請求項１又は
請求項２記載の熱電変換素子の製造方法。3. The method of manufacturing a thermoelectric conversion element according to claim 1, wherein the thermoelectric conversion element, which is hardened by applying pressure, is put into the through hole.
口部と該大小の開口部を繋ぐテーパ部とを有した貫通孔
と、該貫通孔内に投入された前記熱電変換素子の粉を大
きい方の前記開口部より押圧する押圧手段と、該押圧手
段にて前記熱電変換素子の粉を押圧するときに前記熱電
変換素子の粉を加熱する加熱手段と、小さい方の前記開
口部に対向した位置に配設され小さい方の前記開口部と
形状及び大きさが略同一の凹部を有する可動型とを備え
たことを特徴とする熱電変換素子の製造装置。4. A thermoelectric conversion element extrusion die, a through hole having large and small openings and a tapered portion connecting the large and small openings, and powder of the thermoelectric conversion element introduced into the through hole. A pressing means for pressing from the larger opening, a heating means for heating the powder of the thermoelectric conversion element when pressing the powder of the thermoelectric conversion element by the pressing means, and a facing means of the smaller opening. An apparatus for manufacturing a thermoelectric conversion element, comprising: a movable die having a recess having substantially the same shape and size as the smaller opening disposed at the above position.
前から予め前記可動型の前記凹部の底面に設置された導
電体の第１の箔又は粉と、前記可動型に前記熱電変換素
子が導入されて前記可動型を移動させ前記熱電変換素子
を切断した後に前記熱電変換素子の切断面に設置される
導電体の第２の箔又は粉と、前記熱電変換素子と前記導
電体の第１及び第２の箔又は粉とを焼結する焼結手段と
を備えたことを特徴とする請求項４記載の熱電変換素子
の製造装置。5. A first foil or powder of a conductor, which is installed on the bottom surface of the recess of the movable die in advance before the thermoelectric conversion element is introduced into the movable die, and the thermoelectric conversion element on the movable die. Is introduced to move the movable mold to cut the thermoelectric conversion element and then the second foil or powder of the conductor installed on the cut surface of the thermoelectric conversion element, the thermoelectric conversion element and the first of the conductor. 5. The thermoelectric conversion element manufacturing apparatus according to claim 4, further comprising a sintering unit that sinters the first and second foils or powder.
熱電変換素子に圧力を加える加圧手段を備えたこと特徴
とする請求項４又は請求項５記載の熱電変換素子の製造
装置。6. The thermoelectric conversion element manufacturing apparatus according to claim 4, further comprising a pressurizing means for applying a pressure to the powdery thermoelectric conversion element before being put into the through hole. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6327112A JPH08186299A (en) | 1994-12-28 | 1994-12-28 | Method and apparatus for manufacture of thermoelectric conversion element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6327112A JPH08186299A (en) | 1994-12-28 | 1994-12-28 | Method and apparatus for manufacture of thermoelectric conversion element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08186299A true JPH08186299A (en) | 1996-07-16 |
Family
ID=18195435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6327112A Pending JPH08186299A (en) | 1994-12-28 | 1994-12-28 | Method and apparatus for manufacture of thermoelectric conversion element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08186299A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11177156A (en) * | 1997-12-16 | 1999-07-02 | Natl Aerospace Lab | Machining method for thermoelectric conversion material and production of thermoelectric conversion element |
| EP0959507A1 (en) * | 1996-09-13 | 1999-11-24 | Komatsu Ltd. | Thermoelectric semiconductor material, manufacture process therefor, and method of hot forging thermoelectric module using the same |
| JP2006090626A (en) * | 2004-09-24 | 2006-04-06 | National Institute Of Advanced Industrial & Technology | Sintering device, and method of manufacturing sintered body |
| KR20170127992A (en) * | 2016-05-13 | 2017-11-22 | 티엠에스테크 주식회사 | Method for manufacturing semiconductor of thermoelectric module, semiconductor of thermoelectric module and thermoelectric modulef using the same |
-
1994
- 1994-12-28 JP JP6327112A patent/JPH08186299A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0959507A1 (en) * | 1996-09-13 | 1999-11-24 | Komatsu Ltd. | Thermoelectric semiconductor material, manufacture process therefor, and method of hot forging thermoelectric module using the same |
| EP0959507A4 (en) * | 1996-09-13 | 2002-11-13 | Komatsu Mfg Co Ltd | Thermoelectric semiconductor material, manufacture process therefor, and method of hot forging thermoelectric module using the same |
| JPH11177156A (en) * | 1997-12-16 | 1999-07-02 | Natl Aerospace Lab | Machining method for thermoelectric conversion material and production of thermoelectric conversion element |
| JP2006090626A (en) * | 2004-09-24 | 2006-04-06 | National Institute Of Advanced Industrial & Technology | Sintering device, and method of manufacturing sintered body |
| KR20170127992A (en) * | 2016-05-13 | 2017-11-22 | 티엠에스테크 주식회사 | Method for manufacturing semiconductor of thermoelectric module, semiconductor of thermoelectric module and thermoelectric modulef using the same |
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