JPS63137184U

JPS63137184U -

Info

Publication number: JPS63137184U
Application number: JP3007087U
Authority: JP
Priority date: 1987-03-02
Filing date: 1987-03-02
Publication date: 1988-09-09

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す断面図、第
２図、第３図はそれぞれ従来の電磁弁を示す断面
図、第４図は第３図のもののガイドを示す斜視図
、第５図は第３図のもののコアを示す斜視図であ
る。図中、１はヨーク、２はガイド、３はバルブシ
ート、３ａはバルブシート面、４は可動プランジ
ヤ、４ａはバルブ面、６はコイル、８はスプリン
グ、９はコア、２１は入力ポート、２２は出力ポ
ート、２３はドレインポート、３３，３４は非磁
性ゴム弾性膜である。尚、図中同一符号は同一又
は相当部分を示す。 Fig. 1 is a sectional view showing an embodiment of this invention, Figs. 2 and 3 are sectional views each showing a conventional solenoid valve, Fig. 4 is a perspective view showing the guide of Fig. 3, and Fig. 5 The figure is a perspective view showing the core of FIG. 3. In the figure, 1 is a yoke, 2 is a guide, 3 is a valve seat, 3a is a valve seat surface, 4 is a movable plunger, 4a is a valve surface, 6 is a coil, 8 is a spring, 9 is a core, 21 is an input port, 22 23 is an output port, 23 is a drain port, and 33 and 34 are nonmagnetic rubber elastic membranes. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) An excitation coil, a core constituting a magnetic circuit magnetized by the excitation coil, and a movable plunger interposed in the magnetic circuit and having a valve portion formed at one end thereof. , a cup-shaped valve seat disposed coaxially with the movable plunger, with an input port formed on the outer cylindrical part and an output port formed on the bottom, and input/output between the valve part of the movable plunger and the valve seat. In a solenoid valve that opens and closes an oil passage between ports, a non-magnetic rubber elastic film is formed on the surface layer of both sides or one side of the opposing surfaces of the core and the movable plunger to limit the suction force acting on the movable plunger. A solenoid valve characterized by being limited to. (2) The solenoid valve according to claim 1, wherein the non-magnetic rubber elastic film is formed by baking.