JPH01113306U

JPH01113306U -

Info

Publication number: JPH01113306U
Application number: JP703788U
Authority: JP
Priority date: 1988-01-25
Filing date: 1988-01-25
Publication date: 1989-07-31

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示す一部縦断の
正面図、第２図は有極電磁石の操作コイルが非励
磁である時の磁束の流れを示す説明図、第３図ａ
〜ｃは有極電磁石の操作コイルが励磁された時の
磁束の流れを示す説明図で、第３図ａは操作コイ
ルの磁束のみが存在するとした場合の磁束の流れ
を示し、第３図ｂは永久磁石のみの場合の磁束の
流れを示し、第３図ｃは操作コイルと永久磁石の
磁束を合成した磁束の流れを示し、第４図は可動
鉄心が固定鉄心に吸着された場合の磁束の流れを
示す説明図、第５図は従来の有極電磁石を示す一
部縦断の正面図、第６図は有極電磁石の操作コイ
ルが非励磁である時の磁束の流れを示す説明図、
第７図ａ〜ｃは有極電磁石の操作コイルが励磁さ
れた時の磁束の流れを示し、第７図ａは操作コイ
ルの磁束のみが存在するとした場合の磁束の流れ
を示し、第７図ｂは永久磁石のみの場合の磁束の
流れを示し、第７図ｃは操作コイルと永久磁石の
磁束を合成した磁束の流れを示し、第８図は可動
鉄心が固定鉄心に吸着された場合の磁束の流れを
示す説明図である。図において、１は固定鉄心、２は永久磁石、３
は支点継鉄体、４は可動鉄心、６は巻き枠（直流
電磁コイル）、７は操作コイル（直流電磁コイル
）、８は引外しバネである。なお各図中、同一符
号は同一又は相当部分を示す。 Fig. 1 is a partially longitudinal front view showing an embodiment of this invention, Fig. 2 is an explanatory diagram showing the flow of magnetic flux when the operating coil of the polarized electromagnet is de-energized, and Fig. 3 a.
-c are explanatory diagrams showing the flow of magnetic flux when the operating coil of a polarized electromagnet is excited; Fig. 3a shows the flow of magnetic flux when only the magnetic flux of the operating coil exists; Fig. 3b shows the flow of magnetic flux when there is only a permanent magnet, Figure 3c shows the flow of magnetic flux that combines the magnetic flux of the operating coil and the permanent magnet, and Figure 4 shows the magnetic flux when the movable iron core is attracted to the fixed iron core. FIG. 5 is a partially longitudinal front view showing a conventional polarized electromagnet; FIG. 6 is an explanatory diagram showing the flow of magnetic flux when the operating coil of the polarized electromagnet is de-energized.
Figures 7a to 7c show the flow of magnetic flux when the operating coil of the polarized electromagnet is excited; Figure 7a shows the flow of magnetic flux when only the magnetic flux of the operating coil exists; Figure 7a shows the flow of magnetic flux when only the magnetic flux of the operating coil exists; Fig. 7b shows the flow of magnetic flux when only the permanent magnet is used, Fig. 7c shows the flow of magnetic flux combining the magnetic flux of the operating coil and the permanent magnet, and Fig. 8 shows the flow of magnetic flux when the movable iron core is attracted to the fixed iron core. FIG. 3 is an explanatory diagram showing the flow of magnetic flux. In the figure, 1 is a fixed iron core, 2 is a permanent magnet, and 3
4 is a fulcrum yoke, 4 is a movable iron core, 6 is a winding frame (DC electromagnetic coil), 7 is an operating coil (DC electromagnetic coil), and 8 is a tripping spring. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A U-shaped fixed core, a DC electromagnetic coil inserted through one leg of the fixed core, and a DC electromagnetic coil inserted into the other leg of the fixed core are arranged in an adsorbed state, and the polarity of the adsorbed part is changed by the excitation of the DC electromagnetic coil. a permanent magnet having a polarity opposite to that of the magnetized leg; a fulcrum yoke body which is disposed in an attracted state on a surface opposite to the attraction part of the permanent magnet and whose tip protrudes from the leg end of the fixed iron core; , a rod-shaped movable iron core that is rotatably supported by the tip of the fulcrum yoke body and has both ends that are attracted to the leg ends of the fixed iron core, and the movable iron core is biased counterclockwise around the fulcrum. A polarized electromagnet characterized by being equipped with a tripping spring.