JPH0289319U

JPH0289319U -

Info

Publication number: JPH0289319U
Application number: JP16990788U
Authority: JP
Priority date: 1988-12-28
Filing date: 1988-12-28
Publication date: 1990-07-16

Description

[Brief explanation of drawings]

第１図は、本考案を実施する一形式の圧力セン
サの縦断面図である。第２図は、第１図の主要部
を分解して示す断面図である。第３図及び第４図
は、各々従来の圧力センサの例を示す断面図であ
る。１０：ケーシング（ケーシング部材）、１１：
圧力導入ポート、１２：接続部（圧力導入部）、
１３：覆い部（覆い部）、１４：端面、１５：突
起部、１６：Ｏリング、２０：ダイアフラム（検
出部材）、２１：溝、２２：変形部（可撓部）、
２３：歪ゲージ（撓み検出手段）、２４：周辺部
（肉厚部）、２５：端面、２６：溝、２７：小径
部、２８：フランジ（フランジ部）、２９：Ｏリ
ング、３０：固定部材（固定部材）、３１：ねじ
、３２：端面、３３：空間、３５：端子板、３６
：開口部、３７：支持部、３８：端子、４０：ハ
イブリツドＩＣ、４１：貫通コンデンサ、４２，
４４：プレート、４３：Ｏリング、４８：リード
線。 FIG. 1 is a longitudinal cross-sectional view of one type of pressure sensor embodying the present invention. FIG. 2 is an exploded cross-sectional view showing the main parts of FIG. 1. 3 and 4 are cross-sectional views each showing an example of a conventional pressure sensor. 10: Casing (casing member), 11:
Pressure introduction port, 12: Connection part (pressure introduction part),
13: cover part (cover part), 14: end face, 15: projection part, 16: O ring, 20: diaphragm (detection member), 21: groove, 22: deformation part (flexible part),
23: Strain gauge (deflection detection means), 24: Peripheral part (thick part), 25: End face, 26: Groove, 27: Small diameter part, 28: Flange (flange part), 29: O-ring, 30: Fixing member (Fixing member), 31: Screw, 32: End surface, 33: Space, 35: Terminal board, 36
: opening, 37: support, 38: terminal, 40: hybrid IC, 41: feedthrough capacitor, 42,
44: Plate, 43: O-ring, 48: Lead wire.

Claims

[Claims for Utility Model Registration] (1) A cylindrical pressure introduction part in which a pressure introduction port is formed, and a cylindrical cover part provided extending from one end surface of the pressure introduction part. a casing member having a thread formed on the inner circumferential wall of the cover; a thin flexible part provided substantially at the center thereof, the flexible part being provided at a position opposite to one end of the pressure introduction port; a detection member having a cylindrical thick part disposed to support and cover the periphery thereof, the outer diameter of the thick part being smaller than the inner diameter of the covering part of the casing member; It has an outer diameter larger than the outer diameter of the member,
An annular fixing member having a screw formed on its outer peripheral surface to engage with a screw on the inner peripheral wall of the covering portion of the casing member, and having an inner diameter smaller than the outer diameter of the detection member and larger than the inner diameter of the thick wall portion. A pressure sensor comprising:; and a deflection detection means attached to a flexible portion of the detection member. (2) The detection member has a flange formed on its outer peripheral surface, and the fixing member is formed in a shape such that one end surface of the fixing member abuts the detection member at one end surface of the flange. 1. The pressure sensor according to 1.