JPS58176597U

JPS58176597U - brushless motor

Info

Publication number: JPS58176597U
Application number: JP1982074823U
Authority: JP
Inventors: 木谷　範昭
Original assignee: 三洋電機株式会社
Priority date: 1982-05-20
Filing date: 1982-05-20
Publication date: 1983-11-25

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図はこの考案に係るブラシレスモータの一構成例の
要部縦断面図、第２図は第１図に示すブラシレスモータ
の回転子の模式的平面図、第３図は第１図に示すブラシ
レスモータの位置検出用ホール素子と基板の模式的底面
図、第４図Ａ、　Ｂ。Ｃはホール素子からの出力信号の波形図、第４図りは第
４図Ａの信号を波形整形した信号の波形図、第４図Ｅは
第４図Ａの信号を波形整形しかつ仔細した信号の波形図
、第５図はこの考案のブラシレスモータの駆動制御回路
の構成説明図、第６図、第７図、第８図はこの考案に係
るブラシレスモータの他の構成例のそれぞれ第１図、第
２図、第３図相当図である。１．１′・・・・・・ブラシレスモータ、２・・・・・
・回転子、３・・・・・・回転子磁石、９．９’、９″
・・・・・・固定子コイル、ｉｏ、ｉｏ’、　　１ｏ“
・・・・・・位置検出用ホール素子、３２・・・・・・
周波数−電圧変換回路、４２・・・・・・位相−電圧変
換回路、２３・・・・・・加算回路、Ｗ２・・・・・・
第１の制御信号、Ｗ４・・・・・・第２の制御信号、Ｗ
・・・・・・制御信号、５０・・・・・・駆動制御回路
。FIG. 1 is a longitudinal cross-sectional view of a main part of a configuration example of a brushless motor according to this invention, FIG. 2 is a schematic plan view of the rotor of the brushless motor shown in FIG. 1, and FIG. 3 is shown in FIG. 1. FIGS. 4A and 4B are schematic bottom views of a Hall element for detecting the position of a brushless motor and a substrate. C is a waveform diagram of the output signal from the Hall element, the fourth diagram is a waveform diagram of a signal obtained by shaping the signal in FIG. 4A, and FIG. 4E is a detailed signal obtained by shaping the signal in FIG. FIG. 5 is an explanatory diagram of the configuration of the drive control circuit of the brushless motor of this invention, and FIGS. 6, 7, and 8 are diagrams of other configuration examples of the brushless motor of this invention, respectively. , FIG. 2, and FIG. 3 are equivalent views. 1.1'...Brushless motor, 2...
・Rotor, 3...Rotor magnet, 9.9', 9''
...Stator coil, io, io', 1o"
...Hall element for position detection, 32...
Frequency-voltage conversion circuit, 42... Phase-voltage conversion circuit, 23... Addition circuit, W2...
First control signal, W4...Second control signal, W
... Control signal, 50 ... Drive control circuit.

Claims

[Scope of utility model registration request]

In position detection type brushless motors, the rotational position is detected by operating the position detection Hall element using the magnetic flux of the rotor magnet, and this signal is used to switch the energization of the stator coil to rotate the rotor. The output signal of the Hall element is frequency-voltage converted to obtain a first control signal. At the same time, the output signal of the Hall element is frequency-divided by P (P is the number of poles of the rotor magnet) and the signal is phase-voltage converted. A brushless motor in which the drive of the motor is controlled by a control signal that is a combination of the second control signal and the two.