Title:
【発明の名称】回転電機子と電機子巻線の成形方法
Document Type and Number:
Japanese Patent JP2827773
Kind Code:
B2
Abstract:
A central conductor portion of a coil is formed with a potbelly-shaped cross-sectional form and a flat-shaped face of an insulated coating film of the potbelly-shaped cross-sectional form coil is made thinner than an arc-shaped face of the insulated coating film of the potbelly-shaped cross-sectional form coil. An insulated coating wire having a circular-shaped cross-sectional form is formed to a coil having a potbelly-shaped cross-sectional form by rolling process at a normal temperature. A dead space in a slot is lessened and the magnetic resistance of a magnetic core is decreased, thereby a small size and a high output electric motor can be obtained. A method of forming a rotary armature coil having a high space factor in the slot can be attained.
Inventors:
YUMYAMA SHIGERU
ONODERA YASUSHI
MORI YOSHIKI
ONODERA YASUSHI
MORI YOSHIKI
Application Number:
JP33995492A
Publication Date:
November 25, 1998
Filing Date:
December 21, 1992
Export Citation:
Assignee:
HITACHI SEISAKUSHO KK
International Classes:
H01B13/00; H02K3/34; H02K3/48; H02K15/04; H02K3/04; H02K15/12; (IPC1-7): H02K3/04; H01B13/00; H02K3/34; H02K15/04
Domestic Patent References:
| JP63190310A | ||||
| JP5064782A | ||||
| JP6484517A | ||||
| JP59132344U | ||||
| JP5846240U | ||||
| JP579441B2 |
Attorney, Agent or Firm:
Ogawa Katsuo