Title:
DRIVING COIL FOR MOTOR
Document Type and Number:
Japanese Patent JPS58215941
Kind Code:
A
Abstract:
PURPOSE:To smooth the rotation of a motor by disposing a plurality of coils which form a phase so that the sum of distances from a field magnet to the coils becomes equal, thereby averaging the quantity of magnetic flux from the field magnet. CONSTITUTION:Driving coils of a motor having a plurality of driving coils of 1-phase formed by laminating a plurality of coils such as a 2-phase coils of 2- layer lamination of printed coils 51-54 of 4-layers are formed. In this case, a driving coils 55 of 1-phase is formed in combination with the printed coils 51, 54 disposed at the upper and lower surfaces and a driving coils of other 1-phase is formed in combination of printed coils 52, 53 disposed at the intermediate. In this case, the sum of distances from a rotor magnet 91 to 2 printed coils forming a phase becomes substantially equal in the driving coils of the respective phases.
Inventors:
FUJITA MASAHIKO
OKADA SHIGERU
OKADA SHIGERU
Application Number:
JP9762382A
Publication Date:
December 15, 1983
Filing Date:
June 09, 1982
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02K29/00; H02K3/04; H02K3/26; (IPC1-7): H02K3/04; H02K29/00
Attorney, Agent or Firm:
Toshiyuki Usuda
Previous Patent: CONTROL SYSTEM FOR WIDE POWER DISTRIBUTING SYSTEM
Next Patent: FLAT COIL AND MANUFACTURE THEREOF
Next Patent: FLAT COIL AND MANUFACTURE THEREOF