Title:
COIL-LESS MOTOR AND CONTROL CIRCUIT OF COIL-LESS MOTOR
Document Type and Number:
Japanese Patent JP2019140816
Kind Code:
A
Abstract:
To provide a coil-less motor capable of surely performing conversion of efficient electric power and turning force from a start and performing a high-speed response which suppresses an induction characteristic as much as possible by eliminating a coil.SOLUTION: A coil-less motor includes: a rotor 3 including a permanent magnet 2; stators 4 arranged on the rotor 3 with a space provided; a plurality of conductive bodies 6; magnetic flux sensors 7a to 7c; a potential difference measurement part for measuring a potential difference between both ends of each circuit 5; a connection switching circuit for switching a connection state and direction of each circuit 5 with respect to a power source; and a control part connected to the magnetic flux detection sensors 7a to 7c and the potential difference measurement part to measure a rough rotational angle when started, causes the connection switching circuit to disconnect a circuit 5 located astride magnetic poles 2N, 2S, while performing connection switching control to be connected to the power source, measuring an accurate rotational angle during rotation, and performing connection switching control for connecting a circuit 5 located at a position that is not astride the magnetic poles 2N, 2S to the power source in a direction meeting its polarity.SELECTED DRAWING: Figure 1
Inventors:
HARADA SHINTARO
HONMA TAKESHI
HONMA TAKESHI
Application Number:
JP2018023063A
Publication Date:
August 22, 2019
Filing Date:
February 13, 2018
Export Citation:
Assignee:
SHINMEI IND CO LTD
International Classes:
H02P27/06; H02K11/21; H02K37/14; H02P7/06; H02P25/022
Attorney, Agent or Firm:
Hideo Fujimoto
Eiji Fujimoto
Nishimura Kojo
Eiji Fujimoto
Nishimura Kojo