JPH01180870U

JPH01180870U -

Info

Publication number: JPH01180870U
Application number: JP4293289U
Authority: JP
Priority date: 1989-04-14
Filing date: 1989-04-14
Publication date: 1989-12-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すデイスク型ブ
ラシレスモータの縦断面図、第２図及び第３図は
同ブラシレスモータに用いて有用なステータヨー
クの説明図、第４図は同ブラシレスモータに用い
た一例としてのステータヨークの平面図、第５図
はステータ電機子の平面図、第６図は同ブラシレ
スモータの界磁マグネツトの下面図、第７図は電
機子コイルと界磁マグネツトとの展開図、第８図
は回転フアンの斜視図、第９図はデイスク型ブラ
シレスフアンモータケースの斜視図である。Ｍ……デイスク型ブラシレスモータ、１……空
間部、２……モータケース、２ａ……突出体、３
……中心透孔部、４……軸受ハウジング、５……
軸受、６……回転軸、７……Ｅリング、８……ス
テータヨーク、８ａ……延長部、９……切欠部、
１０……螺子、１１……鉄粉、１２……プラスチ
ツク粉、１４，１４−１，……，１４−３……電
機子コイル、１５……界磁マグネツト、１７……
プリント配線基板〔絶縁基板〕、１９−１，……
，１９−３……磁電変換素子（位置検知素子）、
２０……電気回路構成部品、２２……端子、２３
……ロータヨーク、２４……ボス、２５……回転
フアン本体、２６……巻枠、２７……螺子、２９
……半導体整流回路（モータ駆動回路）、３３…
…回転フアン、３４……回転フアン本体、３６…
…デイスク型ブラシレスフアンモータケース、３
７……凹部、４１−１……プラス電源端子、４１
−２……マイナス電源端子。 Fig. 1 is a vertical cross-sectional view of a disk-type brushless motor showing an embodiment of the present invention, Figs. 2 and 3 are explanatory diagrams of a stator yoke useful for use in the brushless motor, and Fig. 4 is an illustration of the brushless motor. 5 is a plan view of the stator armature, FIG. 6 is a bottom view of the field magnet of the same brushless motor, and FIG. 7 is a diagram showing the armature coil and field magnet. FIG. 8 is a perspective view of the rotary fan, and FIG. 9 is a perspective view of the disk type brushless fan motor case. M...Disk type brushless motor, 1...Space, 2...Motor case, 2a...Protrusion, 3
...Center hole, 4...Bearing housing, 5...
Bearing, 6...Rotating shaft, 7...E ring, 8...Stator yoke, 8a...Extension part, 9...Notch part,
10... Screw, 11... Iron powder, 12... Plastic powder, 14, 14-1,..., 14-3... Armature coil, 15... Field magnet, 17...
Printed wiring board [insulating board], 19-1,...
, 19-3...Magnetoelectric conversion element (position detection element),
20... Electric circuit component, 22... Terminal, 23
... Rotor yoke, 24 ... Boss, 25 ... Rotating fan body, 26 ... Winding frame, 27 ... Screw, 29
...Semiconductor rectifier circuit (motor drive circuit), 33...
... Rotating fan, 34... Rotating fan body, 36...
...Disc type brushless fan motor case, 3
7...Recess, 41-1...Positive power terminal, 41
-2... Negative power terminal.

Claims

[Claims for Utility Model Registration] (1) A rotor comprising a field magnet having a plurality of magnetic poles of N and S poles, and a printed wiring board on a surface facing the field magnet with an axial gap interposed therebetween. An insulating substrate such as the above is disposed, and is connected to the lower surface of the insulating substrate at the inner periphery, and has a width approximately equal to the width of the armature coil formed to extend in the radial direction, and has a notch between the extension portions. A stator yoke is disposed, an air-core armature coil is disposed on the upper surface of the insulating substrate at a position facing the extension of the stator yoke, and any of the electrical circuit components disposed on the upper surface of the insulating substrate is provided. A disc-type brushless motor in which the terminals of the components protrude from the lower surface of the insulating substrate and face a notch formed in the stator yoke. (2) The extensions are formed at equal intervals;
A disc-type brushless motor according to claim (1) of the utility model registration. (3) The armature coils are arranged on the insulating substrate facing the extension part so as not to overlap with each other, and among the electric circuit components, at least a position sensing element is responsive to the torque generated by the armature coil. Utility model registration claim No. (2), which is arranged on the upper surface of an insulating substrate in the same phase position as the contributing effective conductor part.
Disc type brushless motor described in section.