JPH0198981U

JPH0198981U -

Info

Publication number: JPH0198981U
Application number: JP19494787U
Authority: JP
Priority date: 1987-12-24
Filing date: 1987-12-24
Publication date: 1989-07-03

Description

[Brief explanation of the drawing]

第１図は本考案をオンオフ型２ポート電磁弁に
適用した場合の実施例の縦断面図、第２図は第１
図における非磁性材から成る板状体の斜視図、第
３図は本考案をデユーテイ制御型３ポート電磁弁
に適用した場合の実施例の縦断面図、第４図は従
来のオンオフ型２ポート電磁弁の一例を示す縦断
面図である。１…コア、１ａ…磁気吸引面、１ｂ…スプリン
グ挿入穴、１ｃ…コアプレート部、２…カバー、
３…側方ヨーク、４…シート部材、４ａ…軸部、
４ｂ…フランジ部、４ｃ…流体入口、４ｄ…弁座
、４ｅ…流体出口、５…ボール弁体、６…止ねじ
、７…スプリング、８…流体通路空間、９…コイ
ル、１０…ボビン、１１…リード線、１２…Ｏリ
ング、１５…板状体、１６…板状部、１７…逃げ
溝、１８…曲折部、ｄ…曲折部内径、Ｄ_１…側方
ヨーク内径、Ｄ_２…逃げ溝内径。 Fig. 1 is a vertical cross-sectional view of an embodiment in which the present invention is applied to an on-off type two-port solenoid valve, and Fig.
Figure 3 is a perspective view of a plate-shaped body made of non-magnetic material, Figure 3 is a longitudinal sectional view of an embodiment in which the present invention is applied to a duty control type 3-port solenoid valve, and Figure 4 is a conventional on-off type 2-port solenoid valve. FIG. 2 is a longitudinal cross-sectional view showing an example of a solenoid valve. 1... Core, 1a... Magnetic attraction surface, 1b... Spring insertion hole, 1c... Core plate portion, 2... Cover,
3... Side yoke, 4... Sheet member, 4a... Shaft part,
4b...flange part, 4c...fluid inlet, 4d...valve seat, 4e...fluid outlet, 5...ball valve body, 6...set screw, 7...spring, 8...fluid passage space, 9...coil, 10...bobbin, 11 ...Lead wire, 12...O-ring, 15...Plate-shaped body, 16...Plate-shaped part, 17...Escape groove, 18...Bent part, d...Inner diameter of bent part, _D1 ...Inner diameter of side yoke, _D2 ...Escape groove Inner diameter.

Claims

[Scope of utility model registration request]

A ball valve body made of a magnetic material is housed between a valve seat made of a non-magnetic material, a core made of a magnetic material disposed opposite to the valve seat, and a side yoke made of a magnetic material, and a ball valve body made of a magnetic material is housed between the side yoke and the side yoke. In a type of solenoid valve in which a small gap is provided between the ball valve body and the side yoke, a plate-like body made of a non-magnetic material is pasted and fixed to one or the other side of the side yoke, and the plate-like body is fixed to the side yoke. is provided with a plurality of relief grooves for fluid entry and exit in the center thereof, and a plurality of bent portions for guiding the ball valve body extending toward the center adjacent to the relief grooves, and the inner diameter of the bent portion and The gap between the outer diameter of the ball valve body and the outer diameter of the ball valve body is
A solenoid valve characterized in that the gap is set smaller than the gap between the inner diameter of the side yoke and the outer diameter of the ball valve body.