JPH03117810U

JPH03117810U -

Info

Publication number: JPH03117810U
Application number: JP2778390U
Authority: JP
Priority date: 1990-03-19
Filing date: 1990-03-19
Publication date: 1991-12-05

Description

[Brief explanation of drawings]

第１図ないし第６図はこの考案の一実施例であ
る電磁コイル装置を構成する部品の一部を示すも
ので、第１図は非磁性間隔板の斜視図、第２図は
磁性金属板の斜視図、第３図は永久磁石の斜視図
、第４図はアンカーと固定アンカーの斜視図、第
５図はボビン枠に巻回されたコイルの斜視図、第
６図は継鉄の斜視図、第７図はこの考案の一実施
例である電磁コイル装置の無励磁状態の正面断面
図、第８図はこの考案の一実施例である電磁コイ
ル装置の吸引特性図、第９図は従来の電磁コイル
装置の無励磁状態の正面断面図、第１０図は第９
図に示す電磁コイル装置のアンカーと固定アンカ
ーの間にライナーを設け励磁状態の正面断面図、
第１１図は第９図に示す電磁コイル装置の復帰ば
ねを標準より強くしたときの吸引特性図、第１２
図は第１０図に示す電磁コイル装置の吸引特性図
である。１……コイル、２……ボビン枠、２ａ……中空
部、３……アンカー、４……固定アンカー、５…
…継鉄、５ａ……内曲げ部、１０……非磁性間隔
板、１１……磁性金属板、１２……永久磁石。 Figures 1 to 6 show some of the parts constituting an electromagnetic coil device that is an embodiment of this invention. Figure 1 is a perspective view of a non-magnetic spacing plate, and Figure 2 is a magnetic metal plate. Figure 3 is a perspective view of the permanent magnet, Figure 4 is a perspective view of the anchor and fixed anchor, Figure 5 is a perspective view of the coil wound around the bobbin frame, Figure 6 is a perspective view of the yoke. 7 is a front cross-sectional view of an electromagnetic coil device in an unexcited state, which is an embodiment of this invention, FIG. 8 is an attraction characteristic diagram of an electromagnetic coil device which is an embodiment of this invention, and FIG. A front sectional view of a conventional electromagnetic coil device in a non-excited state, FIG.
A front sectional view of the electromagnetic coil device shown in the figure with a liner installed between the anchor and the fixed anchor in an energized state,
Figure 11 is an attraction characteristic diagram when the return spring of the electromagnetic coil device shown in Figure 9 is made stronger than standard;
This figure is an attraction characteristic diagram of the electromagnetic coil device shown in FIG. 10. 1... Coil, 2... Bobbin frame, 2a... Hollow part, 3... Anchor, 4... Fixed anchor, 5...
...Yoke, 5a...Inner bent portion, 10...Nonmagnetic spacing plate, 11...Magnetic metal plate, 12...Permanent magnet.

Claims

[Scope of utility model registration request]

A coil is wound around a bobbin frame, and when the coil inserted into the hollow part of this bobbin frame is not energized, it is placed at a position off the center of the hollow part by the action of a return spring, and the coil is energized. An electromagnetic coil device comprising an anchor that is moved by an attractive force generated in the coil and located at the center of a hollow part, and a U-shaped strip yoke that surrounds the bobbin frame and the coil and forms a magnetic path with the anchor. , a plurality of magnetic metal plates each having a round hole with the same diameter as the hollow part of the bobbin frame are laminated on the upper surface of the bobbin frame, and a direction opposite to the flow of residual magnetic flux is formed on both sides of the laminated magnetic metal plates. A permanent magnet is provided so as to generate magnetic flux, and a non-magnetic spacer plate is provided spanning the permanent magnet and the upper surface of the magnetic metal plate and having a through hole having the same diameter as the round hole in the magnetic metal plate at the center of the rectangle. An electromagnetic coil device characterized in that the coil is placed on a yoke and held down by the inner bent portions of the upper ends of both U-shaped legs of a yoke.