JPH03122592A - Manufacture of power element - Google Patents
Manufacture of power elementInfo
- Publication number
- JPH03122592A JPH03122592A JP26014889A JP26014889A JPH03122592A JP H03122592 A JPH03122592 A JP H03122592A JP 26014889 A JP26014889 A JP 26014889A JP 26014889 A JP26014889 A JP 26014889A JP H03122592 A JPH03122592 A JP H03122592A
- Authority
- JP
- Japan
- Prior art keywords
- bottom plate
- capillary
- pressure
- power element
- introducing hole
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000270728 Alligator Species 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000270722 Crocodylidae Species 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Details Of Measuring And Other Instruments (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は温度を検知して作動する制御用の機器における
パワーエレメントの製造法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a power element in a control device that operates by detecting temperature.
従来、温度作動の制御機器に組み込まれて用いられるパ
ワーエレメント、とくにベローズやダイヤフラムなどの
圧力応動部と惑星部とをキャピラリで結合し内部に感温
媒体を封入してなるパワーエレメントにおいて、圧力応
動部に対してキャピラリを接続するに当たっては、圧力
応動部の底板に形成した圧力導入孔を貫通してキャピラ
リの一端を圧力応動部内に開口させ、圧力導入孔の内側
面とキャピラリの外側面との間を鑞付けなどの手段で接
着封止するなどの方法が用いられていた。Conventionally, power elements that are incorporated into temperature-operated control equipment, particularly power elements that connect pressure-responsive parts such as bellows or diaphragms and planetary parts with a capillary and seal a temperature-sensitive medium inside, are pressure-responsive. When connecting a capillary to the pressure-responsive section, one end of the capillary is opened into the pressure-responsive section by penetrating the pressure introduction hole formed in the bottom plate of the pressure-responsive section, and the inner surface of the pressure introduction hole and the outer surface of the capillary are connected. Methods such as adhesively sealing the gap using methods such as brazing were used.
しかし、低溶融点のハンダを用いて接続すると、後工程
における溶接やハンダ付けなどの加熱下の加工を行なう
に当たって前記の接続部の封止が緩んで欠陥が発生しや
すい。そしてまた、確実な接続を完成するために高溶融
点の臘を用いると底板が焼きなまされて歪みを生じたり
ピンホールやクラックが発生するなどの欠点がある。However, when a solder with a low melting point is used for connection, the sealing of the connection part loosens during processing under heat such as welding and soldering in a subsequent process, and defects are likely to occur. Furthermore, if a high-melting-point glue is used to complete a reliable connection, the bottom plate may be annealed, resulting in distortion, pinholes, and cracks.
そこで、キャピラリの圧力導入孔を貫通する部位に二段
の鰐を形成して底板を挟持しておき、その後に結合部を
ハンダ付けする方法（実公昭６Ｏ−１１５１４）提案さ
れている。Therefore, a method has been proposed (Japanese Utility Model Publication No. 6O-11514) in which a two-stage crocodile is formed at the portion of the capillary that passes through the pressure introduction hole to sandwich the bottom plate, and then the joint is soldered.
上記のような改良法は、欠陥の発生を低減させるには有
効であるものの、結合部のハンダにピンホールやボイド
等が生じ易くて封止の信頼性が必ずしも高くなかった。Although the improvement method described above is effective in reducing the occurrence of defects, pinholes, voids, etc. are likely to occur in the solder at the joint, and the reliability of sealing is not necessarily high.
そこで本発明は、高信頼性をもつ圧力応動部とキャピラ
リとの気密封止ができ、かつ結合形状の精度が高いパワ
ーエレメントの製造法を提供することを一目的とした。Accordingly, one object of the present invention is to provide a method for manufacturing a power element that can achieve highly reliable air-tight sealing between a pressure-responsive part and a capillary, and has a high accuracy in the shape of the connection.
このような本発明の目的は、圧力応動部と感温部とをキ
ャピラリで結合し内部に感温媒体を封入してなるパワー
エレメントにおいて、該圧力応動部の底板に形成した圧
力導入孔を囲んで該底板の少なくとも一方側面に環状突
起を設け、該圧力導入孔を貫通する該キャピラリの外側
に該圧力導入孔を挟んで一対の鍔部を凸段し、該環状突
起の頂部を該鍔部の内側面に食い込ませることによって
該底ｖｉ七該鍔部との間を封止することを特徴とする、
パワーエレメントの製造法によって達成することができ
る。An object of the present invention is to provide a power element in which a pressure responsive part and a temperature sensitive part are connected by a capillary and a temperature sensitive medium is sealed inside, and a power element that surrounds a pressure introduction hole formed in the bottom plate of the pressure responsive part. An annular protrusion is provided on at least one side of the bottom plate, a pair of flanges are provided on the outside of the capillary passing through the pressure inlet hole with the pressure inlet hole in between, and the top of the annular protrusion is connected to the flanges. characterized by sealing between the bottom and the flange by biting into the inner surface of the bottom.
This can be achieved by a power element manufacturing method.
本発明のパワーエレメントの製造法を図によって説明す
る。A method of manufacturing a power element according to the present invention will be explained with reference to the drawings.
まず、圧力応動部とキャピラリとの接続を行なうに当た
っては、あらかじめ圧力応動部の底板１に圧力導入孔１
ａをプレス穿孔等の手段によって形成するときに、圧力
導入孔１ａを囲んで底板の少なくとも一方側面に環状突
起１ｂを設けておく。First, when connecting the pressure-responsive part and the capillary, first make a pressure introduction hole in the bottom plate 1 of the pressure-responsive part.
a is formed by means such as press drilling, an annular projection 1b is provided on at least one side of the bottom plate surrounding the pressure introduction hole 1a.
この場合、底板１としては、例えばステンレス鋼や黄銅
などのブリネル硬度が７０以上でありまた加工硬化を起
こしやすい材料で形成されることが好ましい。そして環
状突起１ｂはその頂部が尖鋭で加工硬化していることが
望ましく、底板面からの高さは０．２〜０．１ ｍｍの
範囲内にあることが望ましい。In this case, the bottom plate 1 is preferably formed of a material such as stainless steel or brass that has a Brinell hardness of 70 or more and is easily work hardened. It is desirable that the annular protrusion 1b has a sharp top and is work hardened, and its height from the bottom plate surface is preferably within a range of 0.2 to 0.1 mm.
一方キャピラリ２は、例えば軟銅などのブリネル硬度が
６０以下であって加工硬化を起こしたのちに７０以上と
なる材料で形成されることが好ましい。かかるキャピラ
リ２は、あらかじめその外側に間隔を置いて緊締固着し
た２個のバイスを互いに接近させるように押圧する等の
方法により、キャピラリ２の外側面に鍔部２ａを形成し
ておく。On the other hand, the capillary 2 is preferably formed of a material such as annealed copper, which has a Brinell hardness of 60 or less and has a Brinell hardness of 70 or more after work hardening. The capillary 2 has a flange 2a formed on the outer surface of the capillary 2 in advance by, for example, pressing two vices that are tightly secured at a distance from each other on the outside thereof so as to approach each other.
前記のように形成された底板ｌの圧力導入孔ｌａにキャ
ピラリ２を挿通して鍔部２ａの一方側面を底板１の一方
面に係止し、続いて底板１の他方面側に突出したキャピ
ラリ２の外側面に前記と同様な手段で鍔部２ｂを形成す
ることによって、−対の鍔部２ａ、２ｂで底板１を挟着
した状態とする。このとき、底板ｌの面に設けられてい
る環状突起１ｂは鰐部２ｂの面に食い込み、底板ｌとキ
ャピラリ２とは気密に封止された状態で接続されるとと
もに確実に固定される。The capillary 2 is inserted into the pressure introduction hole la of the bottom plate l formed as described above, one side of the flange 2a is locked to one side of the bottom plate 1, and then the capillary 2 protruding from the other side of the bottom plate 1 is inserted. By forming the flange portion 2b on the outer surface of 2 by the same means as described above, the bottom plate 1 is sandwiched between the pair of flange portions 2a and 2b. At this time, the annular projection 1b provided on the surface of the bottom plate 1 bites into the surface of the alligator portion 2b, and the bottom plate 1 and the capillary 2 are connected in an airtight manner and are securely fixed.
更に必要に応じて、このように形成された底板ｌと鍔部
２ａ、２ｂとの接続部の少なくとも一方をハンダ３等を
用いて鑞接することができるが、こうすると外力などに
よって接続部に変形などが生ずる心配がなく、さらに信
頼性の高い気密結合を得ることができる。Furthermore, if necessary, at least one of the connecting parts between the bottom plate l formed in this way and the flanges 2a and 2b can be soldered using solder 3 or the like, but if this is done, the connecting part will not be deformed by external force etc. There is no fear that such problems will occur, and a more reliable airtight connection can be obtained.
本発明のパワーエレメントの製造法によれば、圧力応動
部の底板の面に圧力導入孔を囲む環状突起を設けて圧力
応動部とキャピラリとを結合するので、完全な封止が達
成されてばらつきのない接続が得られ、信頼性の高いパ
ワーエレメントを高能率で経済的に生産できる利点があ
る。According to the method for manufacturing a power element of the present invention, an annular protrusion surrounding the pressure introduction hole is provided on the surface of the bottom plate of the pressure-responsive part to connect the pressure-responsive part and the capillary. It has the advantage of providing a connection without any cracks, and allowing highly efficient and economical production of highly reliable power elements.
第１図は本発明のパワーエレメントの製造法によって接
続された圧力応動部の底板とキャピラリとの接続部分の
断面図である。
ｌ・・・底板、１ａ・・・圧力導入孔、１ｂ・・・環状
突起、２・・・キヤ、ピラリ、２ａ、２ｂ・・・鍔部、
３・・・ハンダ。FIG. 1 is a sectional view of a connecting portion between a bottom plate of a pressure responsive part and a capillary, which are connected by the power element manufacturing method of the present invention. l...Bottom plate, 1a...Pressure introduction hole, 1b...Annular projection, 2...Kear, pillar, 2a, 2b...Brim part,
3...Solder.
Claims (1)
媒体を封入してなるパワーエレメントにおいて、該圧力
応動部の底板に形成した圧力導入孔を囲んで該底板の少
なくとも一方側面に環状突起を設け、該圧力導入孔を貫
通する該キャピラリの外側に該圧力導入孔を挟んで一対
の鍔部を凸設し、該環状突起の頂部を該鍔部の内側面に
食い込ませることによって該底板と該鍔部との間を封止
することを特徴とする、パワーエレメントの製造法。In a power element in which a pressure responsive part and a temperature sensitive part are connected by a capillary and a temperature sensitive medium is sealed inside, an annular shape is formed on at least one side of the bottom plate surrounding a pressure introduction hole formed in the bottom plate of the pressure responsive part. A projection is provided, a pair of flanges are protruded on the outside of the capillary that penetrates the pressure introduction hole, sandwiching the pressure introduction hole, and the top of the annular projection is bitten into the inner surface of the flanges. A method for manufacturing a power element, characterized by sealing between a bottom plate and the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26014889A JPH03122592A (en) | 1989-10-06 | 1989-10-06 | Manufacture of power element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26014889A JPH03122592A (en) | 1989-10-06 | 1989-10-06 | Manufacture of power element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122592A true JPH03122592A (en) | 1991-05-24 |
Family
ID=17343977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26014889A Pending JPH03122592A (en) | 1989-10-06 | 1989-10-06 | Manufacture of power element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122592A (en) |
-
1989
- 1989-10-06 JP JP26014889A patent/JPH03122592A/en active Pending
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