Title:
発電機用ロータ
Document Type and Number:
Japanese Patent JP5858364
Kind Code:
B2
Abstract:
In a rotor for a generator in which a rotor core is fixed to a rotary shaft rotatably supported by a housing, and field coils are wound on a bobbin installed in the rotor core, so as to be disposed on opposite sides of one plane passing a center axis of the rotary shaft, parts of the bobbin (44) corresponding to axial outer ends of the rotor core (43) are provided with separation protrusions (50i) by each of which a corresponding one of coil end portions (45b) at opposite ends of each of the field coils (45) in an axial direction of the rotary shaft (27) is divided into an inner portion (45ba) and an outer portion (45bb) in a radial direction of the rotary shaft (27), and on opposite sides of each of the separation protrusions (50i) in a peripheral direction of the rotary shaft (27), gaps (53) are respectively formed between the inner portion (45ba) and the outer portion (45bb). Accordingly, it is possible to cool the field coil with its increased heat radiation area so as to enhance power generating efficiency.
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Inventors:
Atsushi Fujimoto
Akizumi Yauchi
Akizumi Yauchi
Application Number:
JP2012214187A
Publication Date:
February 10, 2016
Filing Date:
September 27, 2012
Export Citation:
Assignee:
Sawafuji Electric Co., Ltd.
International Classes:
H02K1/24; H02K3/24; H02K19/16
Domestic Patent References:
| JP2000253607A | ||||
| JP2003235196A |
Attorney, Agent or Firm:
Ken Ochiai
Kazuaki Niki
Nude Shima Shinji
Kazuaki Niki
Nude Shima Shinji