JPH0457740U

JPH0457740U -

Info

Publication number: JPH0457740U
Application number: JP9951690U
Authority: JP
Priority date: 1990-09-21
Filing date: 1990-09-21
Publication date: 1992-05-18

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す要部断面図、
第２図は従来例の縦断面図である。１０……ハウジング、１１……圧力導入口、１
２……固定部材収納室、１３……ダイアフラム収
納室、１４，５１……収納室、１５……基体収納
室、１６，５５……回路基板、１７，５２……ダ
イアフラム、１８，５３……ストツプリング、１
９，５９，６１……フレキシブル基板、２０，２
２，５７……Ｏリング、２１，５８……バツクア
ツプリング、２３……突起、２４……圧力導入路
、５０……ボデイ、５４……ナツト、５６……プ
レート、６０……ピン、６２……コネクタ。 FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
FIG. 2 is a longitudinal sectional view of a conventional example. 10...Housing, 11...Pressure inlet, 1
2... Fixed member storage chamber, 13... Diaphragm storage chamber, 14, 51... Storage chamber, 15... Base storage chamber, 16, 55... Circuit board, 17, 52... Diaphragm, 18, 53... Stop spring, 1
9,59,61...Flexible board, 20,2
2,57...O ring, 21,58...Backup spring, 23...Protrusion, 24...Pressure introduction path, 50...Body, 54...Nut, 56...Plate, 60...Pin, 62 ……connector.

Claims

[Scope of utility model registration request]

In a pressure sensor, a diaphragm 17 is inserted into a chamber 13 that communicates with the pressure introduction port 11 of the housing 10, and pressure is detected from the amount of strain of a strain gauge attached to the diaphragm 17.
A fixing member storage chamber 12 is formed on the side of the pressure introduction port 11, a diaphragm storage chamber 13 having a smaller diameter than the fixing member storage chamber 12 is formed adjacent to this fixing member storage chamber 12, and a diaphragm 17 is formed in the diaphragm storage chamber 13. A fixing member 18 for preventing movement of the diaphragm 17 is housed in the fixing member storage chamber 12, and the fixing member 18 is supported and fixed by the protrusion 23 of the housing 10 to guide pressure to the diaphragm 17. A pressure sensor characterized in that a pressure introduction path 24 is formed in the fixing member 18.