JPH0510841A - Pressure sensor protective cover - Google Patents
Pressure sensor protective coverInfo
- Publication number
- JPH0510841A JPH0510841A JP18804791A JP18804791A JPH0510841A JP H0510841 A JPH0510841 A JP H0510841A JP 18804791 A JP18804791 A JP 18804791A JP 18804791 A JP18804791 A JP 18804791A JP H0510841 A JPH0510841 A JP H0510841A
- Authority
- JP
- Japan
- Prior art keywords
- pressure sensor
- protective cover
- pressure
- main body
- diaphragm
- 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
- 230000001681 protective effect Effects 0.000 title claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は圧力センサの保護カバ
ー、特に二重ダイヤフラム構造の圧力センサの保護カバ
ーに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective cover for a pressure sensor, and more particularly to a protective cover for a pressure sensor having a double diaphragm structure.
【０００２】[0002]
【従来の技術】従来から図２に示すようなＳＵＳ等の金
属で作られている２重ダイアフラム構造の圧力センサの
受圧ダイアフラムは知られている。この２重ダイアフラ
ム構造の圧力センサ１００の受圧部である受圧ダイアフ
ラム１０１は非常に薄いＳＵＳ等の金属で作られている
ので僅かな力で変形し特性が変わってしまう。また、こ
の受圧ダイアフラム１０１は、図からもわかるように外
部にむき出しの構造となっているので輸送、保管、取付
け時等にダイアフラム１０１に損傷を与えるおそれがあ
る。そのため、図３に示すように製造時から取付作業終
了まで圧力センサ本体１０２の上部にダイアフラム保護
用のカバー１０３を取付用Ｏリング（図示せず）を用い
て取付けていた。2. Description of the Related Art Conventionally, a pressure receiving diaphragm of a pressure sensor having a double diaphragm structure made of metal such as SUS as shown in FIG. 2 has been known. Since the pressure receiving diaphragm 101, which is the pressure receiving portion of the pressure sensor 100 having the double diaphragm structure, is made of a very thin metal such as SUS, it is deformed by a slight force and its characteristics are changed. Further, since the pressure-receiving diaphragm 101 has a structure that is exposed to the outside as can be seen from the figure, the diaphragm 101 may be damaged during transportation, storage, attachment, or the like. Therefore, as shown in FIG. 3, the cover 103 for protecting the diaphragm is attached to the upper portion of the pressure sensor main body 102 from the time of manufacturing to the end of the attaching work by using an attaching O-ring (not shown).
【０００３】[0003]
【発明が解決しようとする課題】しかし、このダイアフ
ラム保護用のカバーは、取付作業終了後圧力センサ本体
から取外す作業を必要とするため余分な手間がかかり煩
わしいものであった。本発明はこのような課題を解決す
るためなされたもので、その目的はダイヤフラムを完全
に保護できる取外し不要な圧力センサの保護カバーを提
供することにある。However, the cover for protecting the diaphragm requires a work of removing it from the pressure sensor main body after the mounting work is completed, which requires extra labor and is troublesome. The present invention has been made to solve such a problem, and an object thereof is to provide a protective cover for a pressure sensor that can completely protect a diaphragm and does not need to be removed.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
本発明に係る圧力センサの保護カバーは、保護カバーは
上部に小穴を設けると共に下部周縁部に鍔部を設け、こ
の保護カバーで圧力センサの受圧部を覆うよう前記鍔部
を圧力センサ本体に固着して一体構造とし、前記圧力セ
ンサの受圧部を保護するようにした。In order to solve the above-mentioned problems, a protective cover for a pressure sensor according to the present invention is provided with a small hole in the upper portion and a flange portion in the lower peripheral portion, and the protective sensor covers the pressure sensor. The flange portion is fixed to the pressure sensor main body so as to cover the pressure receiving portion, thereby forming an integral structure to protect the pressure receiving portion of the pressure sensor.
【０００５】[0005]
【作用】本発明に係る圧力センサの保護カバーは、圧力
センサ本体と一体構造として保護カバーの取外しを不要
とする。The protective cover of the pressure sensor according to the present invention has an integral structure with the main body of the pressure sensor and does not require removal of the protective cover.
【０００６】[0006]
【実施例】以下この発明の実施例を添付図面に基いて説
明する。図１は本発明に係る圧力センサの保護カバーの
縦断面図である。圧力センサ１の保護カバー２は、筐体
状をなしており、その上部３には微少面積の小穴４を設
ける。開口している下面５には鍔部６を全周に亘って外
方に張出して形成する。鍔部６と圧力センサ本体７の上
部を溶接等により固着して保護カバー２と圧力センサ本
体７を一体構造とすると共に保護カバー２で圧力センサ
１の受圧部であるダイヤフラム８を覆うようにする。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a vertical sectional view of a protective cover of a pressure sensor according to the present invention. The protective cover 2 of the pressure sensor 1 has a housing shape, and an upper portion 3 thereof is provided with a small hole 4 having a small area. A flange 6 is formed on the open lower surface 5 so as to project outward over the entire circumference. The flange portion 6 and the upper portion of the pressure sensor main body 7 are fixed to each other by welding or the like to integrally form the protective cover 2 and the pressure sensor main body 7, and the protective cover 2 covers the diaphragm 8 which is the pressure receiving portion of the pressure sensor 1. .
【０００７】上部３に設けた微少面積の小穴４は導圧用
の穴である。この実施例ではその穴径を２ｍｍとした
が、この穴径を変化させることで様々なサージ圧に対応
することができ、ダンパーとしての作用を奏する。The small hole 4 having a small area provided on the upper portion 3 is a hole for pressure guiding. Although the hole diameter is set to 2 mm in this embodiment, it is possible to cope with various surge pressures by changing the hole diameter, and the operation as a damper is achieved.
【０００８】なお、９は取付プレート、１０はＰＰＳ樹
脂等のセンサホルダ、１１はセラミックス等の回路基
板、１２はそのリード線を示す。また、圧力センサ本体
７の内側部分１３には樹脂が充填してある。Reference numeral 9 is a mounting plate, 10 is a sensor holder made of PPS resin, 11 is a circuit board made of ceramics, and 12 is its lead wire. The inner portion 13 of the pressure sensor body 7 is filled with resin.
【０００９】本発明に係る圧力センサの保護カバーは、
上記のような構成として製造時に保護カバーを圧力セン
サ本体７に取付けてしまうので、ダイアフラム８が外部
にむき出しになることは一切ないので、輸送、保管、取
付け時等にダイアフラム８に損傷や変形を与えるおそれ
はない。また、上部に小穴３を設けるようにしたので、
サージ圧に対応するダンパーとしての機能を果すことも
できる。The protective cover of the pressure sensor according to the present invention comprises:
Since the protective cover is attached to the pressure sensor main body 7 at the time of manufacturing with the above-mentioned configuration, the diaphragm 8 is never exposed to the outside, so that the diaphragm 8 is not damaged or deformed during transportation, storage, attachment, or the like. There is no danger of giving. Moreover, since the small hole 3 is provided on the upper part,
It can also function as a damper that responds to surge pressure.
【００１０】[0010]
【発明の効果】以上説明したように本発明に係る圧力セ
ンサの保護カバーは、上部に小穴を設け圧力センサの保
護カバーを圧力センサ本体に固着して圧力センサ本体と
一体構造としたので、圧力センサ取付終了後圧力センサ
本体から保護カバーを取外す余分な手間がかからない大
きな利益を有する。As described above, the protective cover of the pressure sensor according to the present invention has a small hole in the upper portion thereof, and the protective cover of the pressure sensor is fixed to the pressure sensor main body so as to be integrated with the pressure sensor main body. It has a great advantage that it does not require extra work to remove the protective cover from the pressure sensor body after the sensor is mounted.
【図１】本発明に係る保護カバーを圧力センサに取付け
た状態を示す縦断面図FIG. 1 is a vertical cross-sectional view showing a state in which a protective cover according to the present invention is attached to a pressure sensor.
【図２】圧力センサの縦断面図FIG. 2 is a vertical sectional view of a pressure sensor.
【図３】従来の保護カバーを圧力センサに取付けた状態
を示す縦断面図FIG. 3 is a vertical cross-sectional view showing a state in which a conventional protective cover is attached to a pressure sensor.
１…圧力センサ、２…保護カバー、３…上面、４…小
穴、５…下面、６…鍔部、７…圧力センサ本体、８…ダ
イヤフラム、９…取付プレート、１０…センサホルダ、
１１…回路基板、１２…リード線、１３…部分。DESCRIPTION OF SYMBOLS 1 ... Pressure sensor, 2 ... Protective cover, 3 ... Upper surface, 4 ... Small hole, 5 ... Lower surface, 6 ... Collar part, 7 ... Pressure sensor main body, 8 ... Diaphragm, 9 ... Mounting plate, 10 ... Sensor holder,
11 ... Circuit board, 12 ... Lead wire, 13 ... Part.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 驛 利男 福岡県北九州市小倉北区中島２丁目１番１ 号 東陶機器株式会社内 (72)発明者 福島 武徳 福岡県北九州市小倉北区中島２丁目１番１ 号 東陶機器株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Oma 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture Totoki Kikai Co., Ltd. (72) Inventor Takenori Fukushima, Nakajima 2 1st-1st Totoki Equipment Co., Ltd.
Claims (1)
カバーは上部に小穴を設けると共に下部周縁部に鍔部を
設け、この保護カバーで圧力センサの受圧部を覆うよう
前記鍔部を圧力センサ本体に固着して一体構造とし、前
記圧力センサの受圧部を保護するようにしたことを特徴
とする圧力センサの保護カバー。Claim: What is claimed is: 1. A protective cover for a pressure sensor, wherein the protective cover is provided with a small hole in an upper portion thereof and a flange portion in a peripheral portion of a lower portion, and the protective cover covers the pressure receiving portion of the pressure sensor. A protective cover for a pressure sensor, characterized in that the portion is fixed to the pressure sensor main body so as to have an integral structure to protect the pressure receiving portion of the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18804791A JPH0510841A (en) | 1991-07-02 | 1991-07-02 | Pressure sensor protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18804791A JPH0510841A (en) | 1991-07-02 | 1991-07-02 | Pressure sensor protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0510841A true JPH0510841A (en) | 1993-01-19 |
Family
ID=16216757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18804791A Pending JPH0510841A (en) | 1991-07-02 | 1991-07-02 | Pressure sensor protective cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0510841A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007117757A (en) * | 2006-12-25 | 2007-05-17 | Nihon Medi Physics Co Ltd | Method for protecting lead glass of radiation shielding injection device |
| CN112161730A (en) * | 2020-09-27 | 2021-01-01 | 张红卫 | Pressure sensor and protective sleeve structure |
-
1991
- 1991-07-02 JP JP18804791A patent/JPH0510841A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007117757A (en) * | 2006-12-25 | 2007-05-17 | Nihon Medi Physics Co Ltd | Method for protecting lead glass of radiation shielding injection device |
| CN112161730A (en) * | 2020-09-27 | 2021-01-01 | 张红卫 | Pressure sensor and protective sleeve structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20000427 |