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Title:
ROTARY ELECTRIC MACHINE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2017046508
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rotary electric machine that is able to reduce space harmonic to a stator magnetomotive force waveform and achieves a coil size reduction and efficiency improvement, while shortening the circumference of a coil end.SOLUTION: On the inside-diameter side of a cylindrical armature iron core 11, coil parts 21, 22 are composed by winding armature coils 16 around teeth 12 through slots 15. Each coil part 21, 22 is formed for a corresponding phase along a circumferential direction of the armature iron core 11, and has at least one coil part disposed across the plurality of teeth 12. If a coil angle pitch of each coil part is C, the number of teeth is T, the number of poles is p, and the number of phases is Q, they are set so as to satisfy the following relation: 360/T[°]≤C≤((2×(T/(Q×p)-1)×360/T)[°] (in which, T, Q, and p are natural numbers of T/(Q×p)>1).SELECTED DRAWING: Figure 4

Inventors:
TACHIKI HIROKI
Application Number:
JP2015168553A
Publication Date:
March 02, 2017
Filing Date:
August 28, 2015
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02K3/28
Domestic Patent References:
JPH0715900A1995-01-17
JPS5713953A1982-01-25
JPS5512746U1980-01-26
JP2015061370A2015-03-30
Attorney, Agent or Firm:
村上 啓吾
大岩 増雄
吉澤 憲治
竹中 岑生