Title:
BRUSHLESS DC MOTOR
Document Type and Number:
Japanese Patent JPS5683256
Kind Code:
A
Abstract:
PURPOSE:To improve detecting performance of a frequency generator by constituting a frequency signal generating coil through connecting the first loop formed on the periphery of a semicircle and the second loop formed on the periphery of another semicircle in the shape of 8. CONSTITUTION:An annular magnet 5 of a rotor 4 has a main pole part (a), a frequency generator pole part (b) and a position detecting pole part (c), and a stator core 6 in a projecting structure is arranged opposite to the main pole part (a). Then, there are formed on a printed plate 8 a magnetoelectricity conversion element 11 in the range of a magnetic flux operation of the position detecting pole part (c) and a zigzag generating coil 10 of a frequency generator opposite to the pole part (b). The generating coil 10 is constituted to connect the first loop (generating coil 30a, return wire 31a) formed on the periphery of a semicircle and the second loop (generating coil 30b, return wire 31b) essentially in the shape of 8.
Inventors:
GOTOU MAKOTO
IGARASHI YOSHIAKI
IGARASHI YOSHIAKI
Application Number:
JP15955079A
Publication Date:
July 07, 1981
Filing Date:
December 07, 1979
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H02K29/14; H02P6/16; (IPC1-7): H02K29/00