JPS60177673U

JPS60177673U - Electric motor

Info

Publication number: JPS60177673U
Application number: JP6533684U
Authority: JP
Inventors: 悟鈴木; 菅野　敏; 近藤　達男
Original assignee: 日本ビクター株式会社
Priority date: 1984-05-02
Filing date: 1984-05-02
Publication date: 1985-11-26

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は本考案になる電動機の二実施例の半部縦断側
面図、第１図Ｂは本考案になる電動機の他の一実施例の
半部縦断側面図、第２図１〜５は本考案になる電動機の
一実施例第１図Ａにおける駆動トルクの波形図、第３図
は電動機の従来例における半部縦断側面図、第４図は従
来例第３図における駆動トルクの波形図、第５図は本考
案になる電動機の永久磁石１２，２０，１２′、２０′
の配置関係を示した図をそれぞれ示す。１、　１６．　１６’、　２４・・・軸受、２．　１５
．　１５’、２１・・・固定子ヨーク、３．　１４．　
１４’、　　２２．２２’・・・配線基板、４，１３．
１３’、２３゜２３′・・・駆動コイル、５，９．１７
・・・回転軸、６．１０．２５・・・ブッシング、？、
１１，１８゜１８′・・・回転子ヨーク、８，１２．１
２’、２０゜２０′・・・永久磁石、１９・・・連結棒
。４、・口）・１、ＩＩ　　　、−’ ゛＼＼− −′）　　　　　　− −ン４）（５）（２） ′７２　図１５　目FIG. 1A is a half longitudinal sectional side view of two embodiments of the electric motor according to the present invention, FIG. 1B is a half longitudinal sectional side view of another embodiment of the electric motor according to the invention, and FIGS. 2 1 to 5 1A is a waveform diagram of the driving torque in one embodiment of the electric motor according to the present invention, FIG. 3 is a half longitudinal sectional side view of a conventional example of the electric motor, and FIG. 4 is a waveform of the driving torque in the conventional example shown in FIG. 3. Figure 5 shows permanent magnets 12, 20, 12', 20' of the electric motor according to the present invention.
Figures showing the arrangement relationships are shown. 1, 16. 16', 24...bearing, 2. 15
．． 15', 21... stator yoke, 3. 14.
14', 22.22'... wiring board, 4, 13.
13', 23°23'... Drive coil, 5, 9.17
...rotating shaft, 6.10.25...bushing, ? ,
11,18°18'...Rotor yoke, 8,12.1
2', 20°20'...Permanent magnet, 19...Connecting rod. 4,・口）・1,II 、-' ゛＼＼- -') - -n4) (5) (2) '72 Figure 15 Eye

Claims

[Scope of utility model registration request]

The rotor has a rotor in which a permanent magnet is fixed to a disk-shaped rotor yoke made of a magnetic material, and a stator in which a wiring board to which a drive coil is fixed is fixed to a disk-shaped stator yoke made of a magnetic material, and the permanent magnet and A plurality of drive mechanisms for driving an electric motor configured by opposing the drive coil with a gap, and a set of drive circuits that can be shared for controlling current to the drive coils of the plurality of drive mechanisms. The permanent magnets or drive coils between the respective drive mechanisms are provided with an angular difference with respect to the rotation direction of the rotation axis so that the combined torque of the plurality of drive mechanisms is averaged with respect to the rotation axis. An electric motor characterized by being fixed.