JPS6146885U

JPS6146885U - Brushless motor parts

Info

Publication number: JPS6146885U
Application number: JP12929584U
Authority: JP
Inventors: 亮平小山; 嘉信春田
Original assignee: 旭化成株式会社
Priority date: 1984-08-28
Filing date: 1984-08-28
Publication date: 1986-03-28
Anticipated expiration: 1999-08-28
Also published as: JPH0632780Y2

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 drawings]

第１図Ａ，Ｂは偏平型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は本考案に用
いるマグネット（８極型）の１例で、平面図と側面図で
ある。第３図Ａ，Ｂ，Ｃは本考案に使用されるプリントコ
イルの１例で表面図、裏平面図、及びＡ−Ａ’矢視図で
ある。第４図Ａ，Ｂは本考案を用いたモーターの断面図と中
心からの距離と磁場の強さの関係グラフである。第５図Ａ，Ｂ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２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
図である。１，１′・・・プリントコイル、２，２′・・・プリン
トコイル麦持体、３，３′・・・うず巻状導体パターン
、４，４’・・・スルーホールランド、５・・・ウス巻
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、８，２・・
・磁気検出素子、９，９′・・・絶縁用オーバーコート
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。Figures 1A and B are an exploded view and a sectional view of an example of a flat brushless motor, and Figures 2A and B are an example of a magnet (8-pole type) used in the present invention, a top view and side view. It is a diagram. FIGS. 3A, B, and C are an example of a printed coil used in the present invention, and are a front view, a back plan view, and a view taken along the line A-A'. Figures 4A and 4B are a cross-sectional view of a motor using the present invention and a graph of the relationship between the distance from the center and the strength of the magnetic field. FIGS. 5A and 5B are two 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, FIG. 7, is a cross-sectional view taken along line BB' in FIG. 6. 1, 1'... Printed coil, 2, 2'... Printed coil holder, 3, 3'... Spiral conductor pattern, 4, 4'... Through-hole land, 5...・Central part of the spiral conductor pattern, 6. 6'...Through hole, 7. 7'...External connection terminal, 8,2...
・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... Shaft.

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 of r1 and an outer diameter of r2;
2n spiral conductor patterns 3 are arranged, and two or more magnetic detection elements 8 are arranged outside the spiral conductor patterns 3 from the center of the magnet R (r×1.2≦R≦r2×1 ．．
It is characterized by comprising a printed coil unit 23 that includes at least one printed coil 1 and a printed coil that does not include a magnetic detection element, which are embedded in a position where the sensing part of the qi detection element is located at the distance of 1). Parts for flat brushless motors.