JPH03273126A - Pressure sensor and its assembling method - Google Patents
Pressure sensor and its assembling methodInfo
- Publication number
- JPH03273126A JPH03273126A JP7447690A JP7447690A JPH03273126A JP H03273126 A JPH03273126 A JP H03273126A JP 7447690 A JP7447690 A JP 7447690A JP 7447690 A JP7447690 A JP 7447690A JP H03273126 A JPH03273126 A JP H03273126A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- pressure
- sensitive element
- pressure sensor
- nut
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 238000003466 welding Methods 0.000 claims description 13
- 238000004382 potting Methods 0.000 claims description 4
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は圧力センサの構造並びにその組立方法に関する
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a structure of a pressure sensor and a method of assembling the same.
（従来の技術）
従来この種の技術について添付第４図を参照して説明す
る。(Prior Art) A conventional technology of this type will be explained with reference to FIG. 4 attached hereto.
圧力センサの感圧エレメント２を被測定装置（図示せず
）へ接続するために、継手ねじ部５とこれと一体に形成
した締め込み用角状ナツト７とよりなる継手９を採用し
、継手ねじ部５の圧力導入孔１１の出口側の角状ナー、
ドアの端部へ断面コ字状の感圧エレメント２の脚部４を
接着１３することにより、前記圧力導入孔１１の出口を
おおい、これを閉鎖するように構成されている。又前記
感圧エレメント２には、継手ねじ部５の圧力導入孔１１
と反対側に感圧素子６を設け、更に感圧エレメント２の
外周に形成した鍔部８には、筒状カラ１０が接合される
。In order to connect the pressure-sensitive element 2 of the pressure sensor to a device to be measured (not shown), a joint 9 consisting of a joint threaded portion 5 and a tightening square nut 7 formed integrally therewith is employed. a square corner on the outlet side of the pressure introduction hole 11 of the threaded part 5;
By gluing 13 the legs 4 of the pressure-sensitive element 2 having a U-shaped cross section to the end of the door, the outlet of the pressure introduction hole 11 is covered and closed. The pressure sensitive element 2 also has a pressure introduction hole 11 in the joint threaded portion 5.
A pressure sensitive element 6 is provided on the opposite side, and a cylindrical collar 10 is joined to a collar 8 formed on the outer periphery of the pressure sensitive element 2.
（発明が解決しようとする課題）
ところが、前述従来例の圧力センサの構造においては、
感圧エレメント２が継手９の端部に突出配置されている
ので、感圧エレメント２を保護するためのケース部材が
必要となり、又感圧エレメント２にアンプ回路等を設け
るのには、後方位置に回路基板等を配置する必要があり
、従って圧力センサ自体の形状が横方向にのびて大きく
なる等の問題があった。(Problem to be Solved by the Invention) However, in the structure of the conventional pressure sensor described above,
Since the pressure-sensitive element 2 is arranged protruding from the end of the joint 9, a case member is required to protect the pressure-sensitive element 2, and in order to provide an amplifier circuit etc. It is necessary to arrange a circuit board and the like in the pressure sensor, which causes problems such as the shape of the pressure sensor itself extending in the lateral direction and becoming larger.
すなわち圧力センサの小型化を実現することが困難であ
った。そこで本発明は前述の問題点を解決し、圧力セン
サの小型化を実現することを目的とするもので、その手
段として以下説明する構成並びにその組立方法を提供す
るものである。That is, it has been difficult to realize miniaturization of the pressure sensor. SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and realize the miniaturization of a pressure sensor, and as a means thereof, it provides the following structure and its assembly method.
（課題を解決するための手段）
以下本発明の実施例を図示する添付図面を参照して、本
発明に係る圧力センサの構成並びにその組立方法につい
て説明する。(Means for Solving the Problems) The configuration of a pressure sensor according to the present invention and its assembly method will be described below with reference to the accompanying drawings illustrating embodiments of the present invention.
（作 用）
本発明においては、継手ねじ部と角状ナツト部とを分離
して別部材として構成しておき、先ず継手ねじ部に圧力
センサの感圧エレメントを溶着して継手ねじ部と感圧エ
レメントを一体化し、しかる後に角状ナツトの中央孔に
前述のように一体化した感圧エレメントを収納し、継手
角状ナツトを継手ねじ部に接合して最終組立を完了する
ものであるから、感圧エレメントは継手角状ナツト内に
コンパクトに収納されており、その後アンプ回路基板や
ケース等の他の部材の組付が容易となり、圧力センサの
小型化を容易に実現することができる。更に継手角状ナ
ツトと感圧エレメントとの組立時に生じる隙間ヘポッテ
ング材等を注入充填すれば、感圧エレメントの保護や感
圧素子への湿度の進入を防止することが可能となる。(Function) In the present invention, the joint threaded part and the square nut part are separated and constructed as separate members, and the pressure sensing element of the pressure sensor is first welded to the joint threaded part. This is because the pressure element is integrated, and then the pressure sensing element integrated as described above is housed in the central hole of the square nut, and the joint square nut is joined to the joint threaded part to complete the final assembly. The pressure-sensitive element is compactly housed within the square nut of the joint, making it easy to assemble other components such as the amplifier circuit board and the case, making it easy to downsize the pressure sensor. Furthermore, if a potting material or the like is injected into the gap created when the joint square nut and the pressure-sensitive element are assembled, it is possible to protect the pressure-sensitive element and prevent moisture from entering the pressure-sensitive element.
（実施例）
以下添付図面を参照して本発明に係る圧力センサの構造
並びにその組付方法を説明する。(Example) The structure of a pressure sensor and its assembly method according to the present invention will be described below with reference to the accompanying drawings.
！＠２図、第３図において、本発明に採用される継手は
二つの部材、すなわち継手ねじ部１２と角状ナツト１４
とに分離構成される。先ず圧力導入孔１１を具えた継手
ねじ部１２の端部へ断面コ字状の感圧エレメント２の脚
部４を溶接１６する。! @ In Figures 2 and 3, the joint employed in the present invention consists of two members: a joint threaded portion 12 and a square nut 14.
It is divided into two parts. First, the leg portion 4 of the pressure-sensitive element 2 having a U-shaped cross section is welded 16 to the end of the joint threaded portion 12 provided with the pressure introduction hole 11 .
溶接方法として、電子ビーム溶接やレーザ光溶接等を用
いる。溶接により断面コ字状の感圧エレメント２の脚部
４は圧力導入孔１１の一側をおおいこれを閉鎖する。尚
前記閉鎖部と反対側の感圧エレメント２の面に感圧素子
６を設ける。又感圧エレメント２の外周に設けた鍔部８
には筒状カラｌＯが接合１８されている。As a welding method, electron beam welding, laser beam welding, etc. are used. By welding, the leg portion 4 of the pressure sensitive element 2 having a U-shaped cross section covers one side of the pressure introduction hole 11 and closes it. Note that a pressure-sensitive element 6 is provided on the surface of the pressure-sensitive element 2 on the opposite side to the closing portion. Additionally, a flange 8 provided on the outer periphery of the pressure sensitive element 2
A cylindrical collar lO is joined 18 to.
以上の様に組立てた継手ねじ部１２と感圧エレメント２
とを継手角状ナツト１４中央孔２０に挿入収納して後、
角状ナツト１４の一側端部２２を継手ねじ部１２の端部
２３へ溶接２４する。溶接方法としては前述の電子ビー
ムやレーザによる溶接方法を採用するか、又その化アー
ク溶接等を採用してもよいことは勿論である。 前述の
溶接完了後、感圧エレメント２と継手角状ナツト１４と
の隙間にシリコンポツテング材２６を充填すれば、感圧
エレメント２へ湿度等の侵入を防止できる。Joint threaded part 12 and pressure sensitive element 2 assembled as above
After inserting and storing the joint square nut 14 into the center hole 20,
One end 22 of the square nut 14 is welded 24 to the end 23 of the joint threaded portion 12. Of course, as the welding method, the aforementioned electron beam or laser welding method, or chemical arc welding or the like may be employed. After the above-mentioned welding is completed, by filling the gap between the pressure sensitive element 2 and the joint square nut 14 with a silicone potting material 26, it is possible to prevent moisture from entering the pressure sensitive element 2.
（効 果）
本発明においては、継手角状ナツト内に、継手ねじ部と
一体に組付けた感圧エレメントを収納したものであるか
ら、ケースやアンプ回路基板その他の部材を組付けるの
が容易であると共に圧力センサの小型コンパクト化を計
ることができる。又継手角状ナツトと感圧エレメントと
の保合隙間にポツテング材を充填したので、感圧エレメ
ントへの湿度の侵入を防止できる。(Effects) In the present invention, the pressure-sensitive element assembled integrally with the threaded part of the joint is housed in the square joint nut, so it is easy to assemble the case, amplifier circuit board, and other parts. At the same time, the pressure sensor can be made smaller and more compact. Furthermore, since the fitting gap between the joint square nut and the pressure-sensitive element is filled with potting material, it is possible to prevent moisture from entering the pressure-sensitive element.
第１図は本発明に係る圧力センサの組付は状態を示す断
面図。
第２図は継手ねじ部へ感圧エレメントを組付けた状態を
示す断面図。
第３図は継手角状ナー、トの側面図。
第４図は従来例の圧力センサの組付は状態を示す一部断
面図。
２・・・感圧エレメント、４・・・脚部、６・・・感圧
素子、８・・・鍔部、ｌＯ・・・筒状カラ、１１・・・
圧力導入孔、１２・・・継手ねじ部、１４・・・継手角
状ナー７ト、１６．１８・・・溶接、２０・・・中央孔
、２４・・・溶接、２６・・・ポツテング材、FIG. 1 is a sectional view showing the assembled state of the pressure sensor according to the present invention. FIG. 2 is a cross-sectional view showing the pressure-sensitive element assembled to the joint thread. FIG. 3 is a side view of the square joint. FIG. 4 is a partial sectional view showing the state of assembly of a conventional pressure sensor. 2... Pressure sensitive element, 4... Leg, 6... Pressure sensitive element, 8... Flange, lO... Cylindrical collar, 11...
Pressure introduction hole, 12... Joint threaded part, 14... Joint square nut, 16.18... Welding, 20... Center hole, 24... Welding, 26... Potteng material ,
Claims (1)
部の一端に溶着した感圧エレメントと、この感圧エレメ
ントをその中央孔内に収納して、その一端を前記継手ね
じ部に溶着した継手角状ナットとよりなる圧力センサ。 ２、断面コ字状にして一側面に感圧素子を配設し、その
外周に形成した鍔部に筒状カラが接合してなる感圧エレ
メントと、前記感圧エレメントの脚部がその圧力導入孔
をおおうように端部に溶着された継手ねじ部と、前記感
圧エレメントをその孔部内に収納し、その鍔部を継手ね
じ部の一端に溶接してなる継手角状ナットとを具えた圧
力センサ。 ３、継手ねじ部の導入孔入口と反対側の一端に、断面コ
字状にして、その一側上に感圧素子を配設し、その外周
に設けた鍔部に筒状カラが接合されている感圧エレメン
トの脚部を溶接する工程と、継手の角状ナット部の孔内
に、前記工程により形成した感圧エレメントを挿入する
工程と、前記継手角状ナットの鍔部を継手ねじ部の端部
に溶接する工程とよりなる圧力センサの組立方法。 ４、継手角状ナットと感圧エレメントとの隙間へポッテ
ング材を注入充填する請求項１又は２記載の圧力センサ
の構成又はその組立方法[Scope of Claims] 1. A pressure-sensitive element welded to one end of the joint thread so as to cover the outlet of the inlet of the joint thread, and this pressure-sensitive element housed in the central hole of the joint thread so as to cover the outlet of the inlet of the joint thread. A pressure sensor comprising a joint square nut welded to the joint threaded portion. 2. A pressure-sensitive element with a U-shaped cross section and a pressure-sensitive element arranged on one side, a cylindrical collar joined to a flange formed on the outer periphery, and a leg of the pressure-sensitive element that responds to the pressure. A joint threaded part welded to an end so as to cover an introduction hole, and a joint square nut in which the pressure-sensitive element is housed in the hole and a flange part is welded to one end of the joint threaded part. pressure sensor. 3. At one end of the threaded part of the joint on the side opposite to the entrance of the introduction hole, the cross section is made into a U-shape, and a pressure-sensitive element is arranged on one side, and a cylindrical collar is joined to the flange provided on the outer periphery. a step of welding the legs of the pressure-sensitive element formed by the above-mentioned step into a hole of the square-shaped nut of the joint; and a step of welding the flange of the joint square-shaped nut to the joint screw. A method for assembling a pressure sensor, which includes a step of welding the ends of the parts. 4. The configuration of the pressure sensor or the method for assembling the same according to claim 1 or 2, wherein a potting material is injected and filled into the gap between the joint square nut and the pressure-sensitive element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7447690A JPH03273126A (en) | 1990-03-23 | 1990-03-23 | Pressure sensor and its assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7447690A JPH03273126A (en) | 1990-03-23 | 1990-03-23 | Pressure sensor and its assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03273126A true JPH03273126A (en) | 1991-12-04 |
Family
ID=13548359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7447690A Pending JPH03273126A (en) | 1990-03-23 | 1990-03-23 | Pressure sensor and its assembling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03273126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017062209A (en) * | 2015-09-25 | 2017-03-30 | 長野計器株式会社 | Pressure sensor |
-
1990
- 1990-03-23 JP JP7447690A patent/JPH03273126A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017062209A (en) * | 2015-09-25 | 2017-03-30 | 長野計器株式会社 | Pressure sensor |
| US10151656B2 (en) | 2015-09-25 | 2018-12-11 | Nagano Keiki Co., Ltd. | Pressure sensor configured to detect pressure of fluid to be measured that embrittles material |
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