JPH03123174U - - Google Patents
Info
- Publication number
- JPH03123174U JPH03123174U JP3247990U JP3247990U JPH03123174U JP H03123174 U JPH03123174 U JP H03123174U JP 3247990 U JP3247990 U JP 3247990U JP 3247990 U JP3247990 U JP 3247990U JP H03123174 U JPH03123174 U JP H03123174U
- Authority
- JP
- Japan
- Prior art keywords
- core
- yoke
- permanent magnet
- magnetic gap
- magnetically connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000004323 axial length Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Magnetically Actuated Valves (AREA)
Description
第１図はこの考案の一実施例による電磁ソレノ
イドを使用した油圧制御バルブの構成を示す断面
図、第２図ないし第５図は同上実施例の動作を説
明するための断面図、第６図は同上実施例におけ
るプランジヤの吸引力特性を示す特性図、第７図
は従来の電磁ソレノイドを使用した油圧制御バル
ブの構成を示す断面図、第８図および第９図はそ
れぞれ従来の電磁ソレノイドを使用した油圧制御
バルブの動作を説明するための断面図、第１０図
は従来の電磁ソレノイドバルブのプランジヤの吸
引力特性を示す特性図である。
１０１……ソレノイド、１０２……ヨーク、１
０３……第１のコア、１０４……第２のコア、１
０５……永久磁石、１０６，１０７……コイル、
１１０……第３のコア、１１２……プランジヤ、
１１３，１１４……円筒部。なお、図中、同一符
号は同一、又は相当部分を示す。
FIG. 1 is a cross-sectional view showing the configuration of a hydraulic control valve using an electromagnetic solenoid according to an embodiment of the invention, FIGS. 2 to 5 are cross-sectional views for explaining the operation of the same embodiment, and FIG. is a characteristic diagram showing the attraction force characteristics of the plunger in the same embodiment as above, FIG. 7 is a sectional view showing the configuration of a hydraulic control valve using a conventional electromagnetic solenoid, and FIGS. A sectional view for explaining the operation of the hydraulic control valve used, and FIG. 10 is a characteristic diagram showing the attraction force characteristics of the plunger of a conventional electromagnetic solenoid valve. 101...Solenoid, 102...Yoke, 1
03...First core, 104...Second core, 1
05...Permanent magnet, 106,107...Coil,
110...Third core, 112...Plunger,
113, 114... Cylindrical part. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
磁気的に接続された第１および第２のコアと、前
記ヨークの内側と磁気的に接続され径方向に着磁
された永久磁石と、この永久磁石と前記第１のコ
アおよび第２のコアとの間に配設されたコイルと
、前記永久磁石の内側と磁気的に接続された第３
のコアと、この第３のコアの内側に一定長さの円
筒状磁気ギヤツプを保持して軸方向に移動可能に
配設されるとともに、この移動によつて前記第１
のコアまたは第２のコアで形成される円筒状磁気
ギヤツプの軸方向長さが変化し、かつこの円筒状
磁気ギヤツプの左右合計長さを全ストロークと同
等以上に形成するプランジヤとを備えた電磁ソレ
ノイド。 a hollow cylindrical yoke; first and second cores magnetically connected at both ends of the yoke; a permanent magnet magnetically connected to the inside of the yoke and magnetized in the radial direction; a coil disposed between the permanent magnet and the first core and the second core; and a third coil magnetically connected to the inside of the permanent magnet.
and a cylindrical magnetic gap of a certain length is held inside the third core so as to be movable in the axial direction.
or a second core, the cylindrical magnetic gap has a variable axial length, and a plunger that forms a total left and right length of the cylindrical magnetic gap equal to or greater than the entire stroke. solenoid.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3247990U JPH03123174U (en) | 1990-03-28 | 1990-03-28 | |
| KR1019910004445A KR910017113A (en) | 1990-03-28 | 1991-03-21 | Electronic solenoid |
| KR2019940004124U KR940003010Y1 (en) | 1990-03-28 | 1994-03-04 | Electronic solenoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3247990U JPH03123174U (en) | 1990-03-28 | 1990-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03123174U true JPH03123174U (en) | 1991-12-16 |
Family
ID=31535474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3247990U Pending JPH03123174U (en) | 1990-03-28 | 1990-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03123174U (en) |
-
1990
- 1990-03-28 JP JP3247990U patent/JPH03123174U/ja active Pending
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