JPH0171286U

JPH0171286U -

Info

Publication number: JPH0171286U
Application number: JP1987168100U
Authority: JP
Priority date: 1987-11-02
Filing date: 1987-11-02
Publication date: 1989-05-12

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例である電磁弁の断面
図、第２図は従来の電磁弁と実施例１における電
磁弁とのストロークと吸引力の関係を比較して示
した図、第３図は本考案における他の実施例を示
したソレノイド部の断面図、第４図は、本考案に
おけるさらに他の実施例を示したソレノイド部の
断面図、第５図は本考案におけるさらに他の実施
例を示したソレノイド部の断面図、第６図は本考
案におけるさらに他の実施例を示したソレノイド
部の断面図である。１……電磁弁、２……ソレノイド部、３……主
弁部、４……プランジヤ（可動鉄心）、４ａ……
プランジヤ端面、４ｂ……フランジ部、５……ボ
ビン、５ａ，５ｂ……フランジ部、６……コイル
、７……固定鉄心、７ａ……固定鉄心端面、８…
…ソレノイドカバー、９……緩衝板、１０……永
久磁石、１１……外側ヨーク、１２……下側ヨー
ク、１３……弁室、１４ａ……供給ポート、１４
ｂ……排出ポート、１５ａ，１５ｂ……流体流通
路、１６……弁口、１７……弁体、１８，１９…
…ばね、、２０……上側ヨーク、２１……連結棒
、Ａ……流体。 Figure 1 is a cross-sectional view of a solenoid valve that is an embodiment of the present invention, Figure 2 is a diagram comparing the relationship between stroke and attraction force between a conventional solenoid valve and the solenoid valve in Embodiment 1; 3 is a sectional view of a solenoid section showing another embodiment of the present invention, FIG. 4 is a sectional view of a solenoid section showing yet another embodiment of the present invention, and FIG. 5 is a sectional view of a solenoid section showing still another embodiment of the present invention. FIG. 6 is a sectional view of a solenoid section showing yet another embodiment of the present invention. 1... Solenoid valve, 2... Solenoid section, 3... Main valve section, 4... Plunger (movable iron core), 4a...
Plunger end face, 4b...flange part, 5...bobbin, 5a, 5b...flange part, 6...coil, 7...fixed core, 7a...fixed core end face, 8...
... Solenoid cover, 9 ... Buffer plate, 10 ... Permanent magnet, 11 ... Outer yoke, 12 ... Lower yoke, 13 ... Valve chamber, 14a ... Supply port, 14
b...Discharge port, 15a, 15b...Fluid flow path, 16...Valve port, 17...Valve body, 18, 19...
...Spring, 20...Upper yoke, 21...Connecting rod, A...Fluid.

Claims

[Claims for Utility Model Registration] (1) A solenoid valve comprising a fixed iron core fixed to a solenoid portion and a movable iron core for driving a valve body, which are arranged facing each other in the internal axis direction of the coil, the coil A solenoid valve characterized in that a permanent magnet is provided at at least one position on the end face side in the axial direction. (2) The electromagnetic valve according to claim 1, wherein the permanent magnet is provided at a position of an upper yoke or a lower yoke. (3) The electromagnetic valve according to claim 1, wherein the permanent magnet is provided from the inner diameter of the bobbin to the entire inner diameter of the outer yoke.