JPH0182667U

JPH0182667U -

Info

Publication number: JPH0182667U
Application number: JP1987177681U
Authority: JP
Priority date: 1987-11-20
Filing date: 1987-11-20
Publication date: 1989-06-01

Description

[Brief explanation of the drawing]

第１図は本考案に係るモータの周波数発電装置
の一実施例を示す分解斜視図、第２図は本考案を
ブラシレスモータとともに示す断面図、第３図は
第１図の周波数発電コイルおよび駆動コイルを示
す平面図、第４図は本考案の他の実施例を示す図
、第５図および第６図は従来の周波数発電装置を
示す分解斜視図および要部平面図である。１，３３…駆動用マグネツト、３，３７…周波
数発電コイル、５，２５…回路基板、７，３１…
ロータヨーク、２９…回転軸、１１…発電素線、
１３…戻りコイル、２６…ステータ、８，２７，
４３…駆動コイル、３９，４１…第１および第２
の回路、３９ａ，４１ａ…第１および第２の発電
素線、３９ｂ，４１ｂ…第１および第２の発電素
線群、３９ｃ，４１ｃ…第１および第２の接続素
線。 Fig. 1 is an exploded perspective view showing an embodiment of the frequency generator for a motor according to the present invention, Fig. 2 is a sectional view showing the invention together with a brushless motor, and Fig. 3 is the frequency generator coil and drive of Fig. 1. FIG. 4 is a plan view showing a coil, FIG. 4 is a view showing another embodiment of the present invention, and FIGS. 5 and 6 are an exploded perspective view and a plan view of essential parts of a conventional frequency power generation device. 1, 33... Drive magnet, 3, 37... Frequency generation coil, 5, 25... Circuit board, 7, 31...
Rotor yoke, 29... Rotating shaft, 11... Power generation wire,
13... Return coil, 26... Stator, 8, 27,
43... Drive coil, 39, 41... First and second
39a, 41a...first and second power generation wires, 39b, 41b...first and second power generation wire groups, 39c, 41c...first and second connection wires.

Claims

[Claims for Utility Model Registration] A plurality of drive coils divided and arranged in an annular manner around the bearing on the stator side of a motor having a bearing, and attached to a rotor yoke rotatably supported by the bearing. a driving magnet that is magnetized in the circumferential direction and facing the drive coil; A frequency power generation magnet is magnetized with multiple poles at equal intervals so as to have alternately different poles, and a frequency power generation magnet is formed on the stator side so as to face the frequency power generation magnet, and as the rotor rotates, the frequency power generation magnet A frequency power generation device for a motor, comprising: a frequency power generation coil that outputs a frequency signal according to the number of rotations; A plurality of first power generation wire groups in which wires are arranged in an arc shape at predetermined intervals and connected in series, and adjacent first power generation wire groups are connected to the first power generation wire group.
a first circuit in which arc-shaped first connection wires connected on the rotating shaft side of the power generation wires are connected in series, and the first connection wire outside the first circuit is A plurality of second power generation strand groups consisting of a plurality of second power generation strands formed in the same way as the first power generation strands in the wire portion, and the second power generation strand group adjacent to the second power generation strand group are A second arc-shaped connection wire that connects the second power generation wire on the side opposite to the rotating shaft side,
and a second circuit connected in series, and the first and second power generation wire groups and the first and second connection wires have a pitch corresponding to the number of drive coils. A frequency generator for a motor, characterized in that the motor is arranged in an annular shape.