JPH03104084U

JPH03104084U -

Info

Publication number: JPH03104084U
Application number: JP1290490U
Authority: JP
Priority date: 1990-02-13
Filing date: 1990-02-13
Publication date: 1991-10-29

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例を示す多極多相型
の可動マグネツト型リニアＤＣブラシレスモータ
をその移動子の走行方向から見た縦断面図、第２
図は一部省略した多極多相型の可動マグネツト型
リニアＤＣブラシレスモータの上面斜視図、第３
図は界磁マグネツトの下面斜視図、第４図は移動
子の走行方向から見た界磁マグネツトの縦断面図
、第５図は本考案の第２実施例を示す多極多相型
の可動電機子型リニアＤＣブラシレスモータをそ
の移動子の走行方向から見た縦断面図、第６図は
一部省略した多極多相型の可動電機子型リニアＤ
Ｃブラシレスモータの上面斜視図、第７図は界磁
マグネツトの上面斜視図である。符号の説明、ＬＤＭ，ＬＤＭ−１……多極多相
型の可動マグネツト型リニアＤＣブラシレスモー
タ、ＬＤＭ−２……多極多相型の可動電機子型リ
ニアＤＣブラシレスモータ、１……ステータベー
ス、２……スタツド、３……ステータヨーク、４
……制御回路内蔵用空隙部、５……通電制御回路
、６……プリント配線基板、７……リニアガイド
用突起、８……電機子コイル、８ａ，８ｂ……推
力の発生に寄与する導体部、８ｃ，８ｄ……推力
の発生に寄与する導体部と直交する導体部、８Ａ
……推力の発生に寄与する導体部と該導体部と直
交する導体部とが交叉する導体部部分、９……コ
アレスステータ電機子、９′……コアレス可動電
機子、１０，１０−１，１０−２……界磁マグネ
ツト、１０Ｎ−１，１０Ｎ−２……Ｎ極の永久磁
石、１０Ｓ−１，１０Ｓ−２……Ｓ極の永久磁石
、１１……プリント配線基板、１２……磁極判別
素子、１３，１３−１，１３−２……移動子、１
４……走行ヨーク、１５……微小空隙部、１６…
…ガイドローラ支持部材、１７……係合溝、１８
……ガイドローラ、１９−１，１９−２……凹部
溝、２０……磁石破損塵粉発生防止薄膜。 FIG. 1 is a vertical cross-sectional view of a multi-pole, multi-phase movable magnet type linear DC brushless motor showing a first embodiment of the present invention, viewed from the running direction of its mover;
The figure is a top perspective view of a multi-pole, multi-phase movable magnet type linear DC brushless motor with some parts omitted;
The figure is a bottom perspective view of the field magnet, Figure 4 is a vertical sectional view of the field magnet seen from the moving direction of the mover, and Figure 5 is a multi-pole, multi-phase movable magnet showing the second embodiment of the present invention. A vertical cross-sectional view of an armature-type linear DC brushless motor viewed from the moving direction of its moving element, FIG. 6 is a multi-pole, multi-phase moving armature linear D with some parts omitted
FIG. 7 is a top perspective view of the C brushless motor, and FIG. 7 is a top perspective view of the field magnet. Explanation of symbols, LDM, LDM-1...Multi-pole multiphase moving magnet type linear DC brushless motor, LDM-2...Multi-pole multiphase moving armature linear DC brushless motor, 1...Stator base , 2... Stud, 3... Stator yoke, 4
... Gap for incorporating control circuit, 5 ... Current control circuit, 6 ... Printed wiring board, 7 ... Linear guide protrusion, 8 ... Armature coil, 8a, 8b ... Conductor contributing to generation of thrust Parts, 8c, 8d...Conductor part orthogonal to the conductor part that contributes to the generation of thrust, 8A
. . . A conductor portion where a conductor portion that contributes to the generation of thrust intersects with a conductor portion orthogonal to the conductor portion, 9 . . . Coreless stator armature, 9' . 10-2... Field magnet, 10N-1, 10N-2... N-pole permanent magnet, 10S-1, 10S-2... S-pole permanent magnet, 11... Printed wiring board, 12... Magnetic pole Discrimination element, 13, 13-1, 13-2...Mover, 1
4... Traveling yoke, 15... Micro gap, 16...
...Guide roller support member, 17...Engagement groove, 18
... Guide roller, 19-1, 19-2 ... Concave groove, 20 ... Thin film to prevent magnet damage and dust generation.

Claims

[Scope of utility model registration request]

N-pole and S-pole permanent magnets made of rare earth magnets are coated with a thin film to prevent magnet damage and dust generation using electrodeposition or epoxy resin paint, respectively. (an integer of 2 or more) to form a field magnet, and n (n is an integer of 2 or more) armature coils arranged along the moving direction of the mover at positions facing the field magnet. A linear DC brushless motor, in which either the field magnet or the armature is attached to a relatively movable mover, and the other is used as a stator.