JPH023629U

JPH023629U -

Info

Publication number: JPH023629U
Application number: JP8082888U
Authority: JP
Priority date: 1988-06-17
Filing date: 1988-06-17
Publication date: 1990-01-11
Anticipated expiration: 2003-06-04
Also published as: JPH0521807Y2

Description

[Brief explanation of drawings]

第１図乃至第７図は本考案の一実施例を説明す
るためのもので、第１図は縦断正面図、第２図は
縦断側面図、第３図は第１図と異なる状態で示す
縦断正面図、第４図はダイヤフラム基板の平面図
、第５図は同ダイヤフラム基板の下面図、第６図
は接点用基板の平面図、第７図は基台の平面図で
ある。また、第８図は従来例を示す縦断正面図で
ある。図中、１１は圧力スイツチ、１２は基台、１２
ａは凹部、１２ｂは台座部、１３は接点用基板、
１４，１５は第１の接点、１８はダイヤフラム基
板、１９は枠状部、１９ａは脚部（スペーサ部）
、２０はダイヤフラム、２１は絶縁膜、２２は第
２の接点、２３は凸条部、２７は厚肉部を示す。 Figures 1 to 7 are for explaining one embodiment of the present invention; Figure 1 is a vertical front view, Figure 2 is a vertical side view, and Figure 3 is shown in a different state from Figure 1. 4 is a plan view of the diaphragm substrate, FIG. 5 is a bottom view of the diaphragm substrate, FIG. 6 is a plan view of the contact substrate, and FIG. 7 is a plan view of the base. Moreover, FIG. 8 is a longitudinal sectional front view showing a conventional example. In the figure, 11 is a pressure switch, 12 is a base, 12
a is a recess, 12b is a pedestal, 13 is a contact board,
14 and 15 are first contacts, 18 is a diaphragm substrate, 19 is a frame portion, and 19a is a leg portion (spacer portion).
, 20 is a diaphragm, 21 is an insulating film, 22 is a second contact, 23 is a protruding portion, and 27 is a thick portion.

Claims

[Claims for Utility Model Registration] 1. A base having a frame-shaped base around a recess;
An elastically deformable flat contact substrate mounted on the pedestal portion of the base so as to airtightly close the recess, a first contact provided on the contact substrate, and a thin diaphragm. The peripheral portion is airtightly adhered to the contact substrate via a spacer portion, so that a predetermined gap exists between the surface of the diaphragm opposite to the pressure receiving surface and the contact substrate. a diaphragm substrate; a second contact formed on a surface of the diaphragm substrate opposite to the pressure receiving surface so as to be in constant contact with the first contact; and a second contact formed on the surface of the diaphragm substrate opposite to the pressure receiving surface; and a convex strip surrounding the second contact and having its top abutted against the contact substrate, so as to obtain a switching function between the first and second contacts. pressure switch. 2. The pressure sensor according to claim 1, wherein the diaphragm substrate has a thick portion integrally formed on the pressure receiving surface side of the diaphragm so as to correspond to the convex strip provided on the opposite surface. Switch.