JPS6127480U

JPS6127480U - Motor parts

Info

Publication number: JPS6127480U
Application number: JP11024384U
Authority: JP
Inventors: 亮平小山; 嘉信春田
Original assignee: 旭化成株式会社
Priority date: 1984-07-23
Filing date: 1984-07-23
Publication date: 1986-02-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図Ａ，Ｂは扁平径ブラシレスモーターの１例で組
立分解図と断面図であり、第２図Ａ．Ｂは本考案のマ
グネット（８極型）の１例で、平面図と側面図である。第３［ＩＡ．Ｂ，Ｃは本考案に使用されるプリント
コイルの１例で表平面図、裏平面図、及びＡ−Ａ’矢視
図である。第４図Ａ．は本考案によるモーターの断面図と中心から
距離と磁場の磁強さの関係のグラフである。第５図は本考案に使用されるプリントコイルの磁気検出
素子とうす巻状導体パターンの関係を示す５つの例であ
る。第６図は、本考案に用いるプリントコイルユニットの１
例の平面図、第７図は第６図のＢ−Ｂ’線での切断断面
図で、第７図Ａは磁気検出素子が１枚のプリントコイル
に、第７図Ｂは２枚のプリントコイルに埋め込まれてい
る場合の断面図である。１，１′・・・プリントコイル、２，２′・・・プリン
トコイル支持体、３，３′・・・うす巻状導体パターン
、４．４’・・・スルーホールランド、５．５’・・・
うす巻状導体パターンの中央部、６，６′・・・スルー
ホール、７，７′・・・外部接続用端子、８．２２・・
・磁気検出素子、９，９′・・・絶縁用オーハーコート
樹脂、１２・・・接着剤、１３・・・磁気検出素子埋込
用穴、２１・・・磁石、２３・・・コイルユニット、２
４・・・ヨーク板、２５・・・軸、０・・・プリントコ
イルとプリントコイルの中心でモーターの軸か通る。Figures 1A and 1B are an exploded view and a cross-sectional view of an example of a flat diameter brushless motor, and Figure 2A. B is a plan view and a side view of an example of the magnet (8-pole type) of the present invention. Third [IA. B and C are an example of a printed coil used in the present invention, and are a front plan view, a back plan view, and a view taken along the line A-A'. Figure 4A. is a cross-sectional view of the motor according to the present invention and a graph of the relationship between the distance from the center and the magnetic field strength. FIG. 5 shows five examples showing the relationship between the magnetic sensing element of the printed coil used in the present invention and the thinly wound conductor pattern. Figure 6 shows one of the printed coil units used in this invention.
The plan view of the example, and FIG. 7 is a cross-sectional view taken along the line BB' in FIG. It is a sectional view when it is embedded in a coil. 1, 1'...Printed coil, 2,2'...Printed coil support, 3,3'...Thinly wound conductor pattern, 4.4'...Through hole land, 5.5' ...
Center part of thinly wound conductor pattern, 6, 6'... Through hole, 7, 7'... Terminal for external connection, 8.22...
・Magnetic detection element, 9, 9'... Insulating overcoat resin, 12... Adhesive, 13... Hole for embedding magnetic detection element, 21... Magnet, 23... Coil unit, 2
4... Yoke plate, 25... Axis, 0... Print coil and the motor shaft passes through the center of the print coil.

Claims

[Scope of utility model registration request]

A flat donut-shaped magnet 21 having n N and S poles each magnetized in a plane direction perpendicular to the axis and having an inner diameter r1 and an outer diameter r2;
0 spiral conductor patterns 3 are arranged, and the magnetic detection element 8 is placed outside the thin spiral conductor pattern 3 at a distance of R (rX1.2≦R≦r2X1.1) from the center of the magnet. A part for a flat brushless motor characterized by including a printed coil unit 23 including one or more printed coils 1 embedded in a position where a sensing part of an element is located.