JPS6393784U

JPS6393784U -

Info

Publication number: JPS6393784U
Application number: JP18969886U
Authority: JP
Priority date: 1986-12-09
Filing date: 1986-12-09
Publication date: 1988-06-17

Description

[Brief explanation of drawings]

第１図は本考案第１実施例の界磁マグネツトの
斜視図、第２図は本考案第２実施例の界磁マグネ
ツトの斜視図、第３図は本考案第３実施例の界磁
マグネツトの斜視図、第４図は従来の有鉄心型リ
ニア直流モータの主要部を表わす分解斜視図、第
５図は同有鉄心型リニア直流モータにおけるステ
ータ電機子鉄心の縦断面図である。１…有鉄心型リニア直流モータ、２…ステータ
電機子、３…空隙、４，４′，４″，４…界磁
マグネツト、４Ｎ…Ｎ磁の駆動用磁極、４Ｓ
…Ｓ磁の駆動用磁極、５…ステータ電機子鉄心、
６…細首胴体部、７…磁極片、８…Ｔ字型突極、
９…ステータヨーク、１０…スロツト、１１…電
機子コイル、１２…凹部、１３…切欠部、１４
Ｎ…Ｎ磁極、１４Ｓ…Ｓ磁極、１５…実質的無
着磁極。 FIG. 1 is a perspective view of a field magnet according to a first embodiment of the present invention, FIG. 2 is a perspective view of a field magnet according to a second embodiment of the present invention, and FIG. 3 is a perspective view of a field magnet according to a third embodiment of the present invention. FIG. 4 is an exploded perspective view showing the main parts of a conventional iron core type linear DC motor, and FIG. 5 is a vertical sectional view of the stator armature core in the same iron core type linear DC motor. 1... Iron core type linear DC motor, 2... Stator armature, 3... Air gap, 4, 4', 4'', 4... Field magnet, 4N... N magnetic driving magnetic pole, 4S
...S magnetic driving magnetic pole, 5...stator armature core,
6...Narrow neck body part, 7...Magnetic pole piece, 8...T-shaped salient pole,
9... Stator yoke, 10... Slot, 11... Armature coil, 12... Recess, 13... Notch, 14
N...N magnetic pole, 14S...S magnetic pole, 15...substantially non-magnetized pole.

Claims

[Claims for Utility Model Registration] (1) An armature having salient poles or slots and formed by winding an armature coil around the salient poles, and an N, S The magnetic pole of P
(P is an integer of 2 or more) Field magnets are provided, and either the armature or the field magnet is used as a movable element, and the other is used as a stator and supported so as to be relatively movable. An iron core type linear DC motor, wherein the field magnet is formed so that magnetic flux at a boundary side end adjacent to a different pole of the field magnet is weakened. (2) The means for weakening the magnetic flux at the boundary side end adjacent to the different poles of the field magnet is provided by forming a recess in the field magnet at the boundary side end. Iron core type linear DC motor described in 1). (3) The means for weakening the magnetic flux at the boundary side end adjacent to the different poles of the field magnet is provided by forming a notch in the field magnet at the boundary side end. Iron core type linear DC motor described in 1). (4) The means for weakening the magnetic flux at the boundary side end portion adjacent to the different poles of the field magnet is a utility model in which a substantially non-magnetized portion is formed in the field magnet portion at the boundary side end portion. An iron core type linear DC motor according to registered claim (1).