JPH0335383U

JPH0335383U -

Info

Publication number: JPH0335383U
Application number: JP9640289U
Authority: JP
Priority date: 1989-08-18
Filing date: 1989-08-18
Publication date: 1991-04-05
Anticipated expiration: 2004-06-22
Also published as: JPH0623808Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る電磁弁を示す
縦断面図、第２図は第１図に示す電磁弁が適用さ
れるアンチロツクブレーキシステムの油圧系統を
示す全体構成図、第３図は第１図に示す電磁弁の
一部を拡大して示した拡大断面図、第４図は第３
図の−矢視図、第５図は第３図の−線に
沿う断面図、第６図は第３図の−線に沿う断
面図、第７図は第１図に示す電磁弁の一部を拡大
して示した拡大断面図、第８図は一実施例に係る
電磁弁に用いられる弁体押圧部材を示す平面図、
第９図は第８図に示す弁体押圧部材の変形例を示
す平面図である。１００，１０１……インバルブ（第１開閉弁）
、１０２，１０３……アウトバルブ（第２開閉弁
）、２０２……センタコア（コア）、２０５，２
０６……プランジヤ、２０５ａ……プランジヤの
貫通孔、２１１，２１２……ボール弁体（弁体）
、２１５……弁座部材、２１６……弁座部材（第
２開閉弁の弁座部材）、２２０，２２１……励磁
コイル、３００……弁体押圧部材、３００ａ……
中央押圧部、３００ｂ，３００ｃ……油路、３１
０……ポート部材。 FIG. 1 is a vertical sectional view showing a solenoid valve according to an embodiment of the present invention, FIG. 2 is an overall configuration diagram showing a hydraulic system of an anti-lock brake system to which the solenoid valve shown in FIG. 1 is applied, and FIG. The figure is an enlarged cross-sectional view of a part of the solenoid valve shown in Figure 1, and Figure 4 is an enlarged cross-sectional view of a part of the solenoid valve shown in Figure 1.
Fig. 5 is a sectional view taken along the - line in Fig. 3, Fig. 6 is a sectional view taken along the - line in Fig. 3, and Fig. 7 is a view of the solenoid valve shown in Fig. 1. FIG. 8 is a plan view showing a valve pressing member used in a solenoid valve according to an embodiment;
FIG. 9 is a plan view showing a modification of the valve body pressing member shown in FIG. 8. 100, 101...In-valve (first opening/closing valve)
, 102, 103... Out valve (second opening/closing valve), 202... Center core (core), 205, 2
06... Plunger, 205a... Plunger through hole, 211, 212... Ball valve body (valve body)
, 215... Valve seat member, 216... Valve seat member (valve seat member of the second on-off valve), 220, 221... Excitation coil, 300... Valve body pressing member, 300a...
Central pressing part, 300b, 300c...oil passage, 31
0...Port member.

Claims

[Claims for Utility Model Registration] (1) A plunger is sucked toward the core when an excitation coil is energized on both sides of the core with through holes, thereby pressing the valve body against the valve seat member. A normally closed first on-off valve that opens when the excitation coil is released, and a normally closed first on-off valve that closes when the plunger is attracted toward the core when the excitation coil is energized, and the valve body is pressed against the valve seat member. In the electromagnetic valve in which a second on-off valve of the type is vertically arranged, a valve seat member of the second on-off valve and a port member forming a fluid passage are press-fitted into the through hole of the core, and the port member is press-fitted into the through hole of the core. A solenoid valve, characterized in that a protruding portion of the member protruding from the core is slidably inserted into a through hole bored in the center of a plunger of the first on-off valve. (2) A plate-shaped valve body pressing member that presses the valve body of the first on-off valve is placed close to an end of the protrusion of the port member at an end of the through hole of the plunger of the first on-off valve. The valve body pressing member is fixed, and at least one oil passage is bored in the valve body pressing member at a position apart from the central pressing part that presses the valve body, and when the excitation coil is energized, the protruding part 2. The electromagnetic valve according to claim 1, wherein an end portion of the first on-off valve is configured to abut against the valve body pressing member, and a plunger of the first on-off valve does not abut against the core.