JPS61112608U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例を示す縦断面図、第２
図は磁束の流れを説明する図、第３図は固定鉄心
の断面形状を示す図、第４図は固定鉄心の断面形
状と吸引力特性の関係を示す図、第５図は他の実
施例を示す縦断面図、第６図は負荷と吸引力特性
との関係を示す図である。 １……固定鉄心、２……可動鉄心、３……継鉄
、４……励磁コイル。 Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
The figure is a diagram explaining the flow of magnetic flux, Figure 3 is a diagram showing the cross-sectional shape of the fixed core, Figure 4 is a diagram showing the relationship between the cross-sectional shape of the fixed core and the attractive force characteristics, and Figure 5 is another example. FIG. 6 is a diagram showing the relationship between load and attraction force characteristics. 1...Fixed iron core, 2...Movable iron core, 3...Yoke, 4...Exciting coil.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 固定鉄心と、その内部を挿通する可動鉄心と、
それらの鉄心を取巻くように設けられた励磁コイ
ルと、閉磁路を形成するための継鉄とから成るソ
レノイド形電磁石において、前記固定鉄心の横断
面における断面積が、固定鉄心の長手方向におい
て可動鉄心を吸引する方向と反対方向に漸減して
いることを特徴とするソレノイド形電磁石。 A fixed core, a movable core inserted through the core,
In a solenoid-type electromagnet consisting of an excitation coil provided to surround these iron cores and a yoke for forming a closed magnetic path, the cross-sectional area of the fixed iron core in the cross section is larger than that of the movable iron core in the longitudinal direction of the fixed iron core. A solenoid-shaped electromagnet that is characterized by a gradual decrease in the direction opposite to the direction in which it is attracted.