JPH0360663U

JPH0360663U -

Info

Publication number: JPH0360663U
Application number: JP12116389U
Authority: JP
Priority date: 1989-10-17
Filing date: 1989-10-17
Publication date: 1991-06-14

Description

[Brief explanation of drawings]

第１図乃至第３図は本考案の一実施例に係るソ
レノイドを示しており、第１図ａは第２図のＡ部
拡大断面図、同図ｂはエツジ部を面取りした場合
のＡ部拡大断面図、第２図はプランジヤとボデイ
当接部の縦断面図、第３図は全体縦断面図、第４
図および第５図はそれぞれプランジヤのエツジ部
のＲが０．２の場合と、０．３〜０．６の場合の
電流と吸引力特性図、第６図および第７図はそれ
ぞれプランジヤのエツジ部のＲが０．２の場合と
０．６の場合のストロークと吸引力との特性図、
第８図乃至第１０図は従来のソレノイドを示して
おり、第８図は要部縦断面図、第９図はプランジ
ヤとボデイとの当接部の部分断面図、第１０図は
プランジヤのエツジ部の部分拡大断面図、第１１
図は従来のソレノイドの電流、吸引力特性図、第
１２図はソレノイドのヒステリシス要因を検討す
るための模式的構成図である。符号の説明、１……ソレノイド、２……ソレノ
イド本体、２１……ケーシング、２２……コイル
部、２３……プランジヤ室、２４……ボデイ、２
５……第１シリンダ、２６……センターポスト、
２７……シム、２８……スプリング、２９……第
２シリンダ、３……プランジヤ（可動部材）、３
１……エツジ部、３２……面取り（磁束分散部）
、４……ロツド、５……貫通孔、６……第１軸受
、７……第２軸受、８……環状突起、Ｒ……アー
ル（磁束分散部）。 1 to 3 show a solenoid according to an embodiment of the present invention, FIG. 1a is an enlarged sectional view of section A in FIG. 2, and FIG. An enlarged cross-sectional view, Figure 2 is a vertical cross-sectional view of the plunger and the body contact part, Figure 3 is an overall vertical cross-sectional view, and Figure 4 is a vertical cross-sectional view of the entire body.
5 and 5 are current and attraction force characteristics diagrams when the R of the edge of the plunger is 0.2 and 0.3 to 0.6, respectively, and FIGS. 6 and 7 are diagrams of the R of the plunger edge Characteristic diagram of stroke and suction force when R of the part is 0.2 and 0.6,
Figures 8 to 10 show a conventional solenoid, with Figure 8 being a vertical sectional view of the main part, Figure 9 being a partial sectional view of the abutting part between the plunger and the body, and Figure 10 showing the edge of the plunger. Partially enlarged sectional view of part 11
The figure shows the current and attraction force characteristics of a conventional solenoid, and FIG. 12 is a schematic configuration diagram for studying the hysteresis factors of the solenoid. Explanation of symbols, 1...Solenoid, 2...Solenoid body, 21...Casing, 22...Coil portion, 23...Plunger chamber, 24...Body, 2
5...First cylinder, 26...Center post,
27...Shim, 28...Spring, 29...Second cylinder, 3...Plunger (movable member), 3
1... Edge part, 32... Chamfer (magnetic flux dispersion part)
, 4... Rod, 5... Through hole, 6... First bearing, 7... Second bearing, 8... Annular projection, R... R (magnetic flux distribution part).

Claims

[Claims for Utility Model Registration] (1) By energizing the solenoid body, the movable member made of magnetic material inserted into the periphery of the solenoid body is magnetically attracted to the fixed member made of magnetic material fixed to the solenoid body. What is claimed is: 1. A solenoid comprising: a magnetic flux dispersion section for dispersing magnetic flux passing between the movable member and the fixed member at an edge portion of the movable member on the fixed member side. (2) The solenoid according to claim 1, wherein the magnetic flux dispersion portion is formed by rounding an edge portion of the movable member. (3) The solenoid according to claim 1, wherein the magnetic flux dispersion portion is configured by chamfering an edge portion of the movable member.