EP1107433A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Liquid-cooled vehicle rotary electric machine
Assignee: Denso Corp
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Filing: 2000-11-28
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Granted: —
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Expires: 2020-11-28
Abstract
Abstract A liquid-cooled vehicle generator-motor includes a frame (4) having a liquid passage, a stator core (32) fixedly fitted to the inner periphery of the frame (4), a multi-phase stator winding (1420) accommodated in the plurality of slots (35) of the stator core (32), and a rotor (3) disposed inside the stator core (32). The stator winding (1420) includes a plurality of insulated U-shaped conductor segments (33, 1433) each of which has a pair of legs(1433r, 1433s). Each leg is inserted in a slot from one end of the stator core (32) and paired to another at a portion extending from the other end of the stator.
Inventors
- 👤 Atsushi Denso Corporation Umeda
- 👤 Tsutomu Denso Corporation Shiga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 11:41
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/22; H02K19/24; H02K3/00; H02K3/04; H02K3/12; H02K5/00; H02K5/04; H02K5/20; H02K7/00; H02K7/18; H02K7/1807; H02K7/1815; H02K9/00; H02K9/22; H02K9/227; H02K7/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
150 words
A liquid-cooled vehicle rotary electric machine
operable in a motor mode or a generator mode comprising: a frame (4) having an inner periphery and a liquid passage
(41); a stator core (32) having an outer periphery fixedly fitted
to said inner periphery of said frame (4) and a plurality of
slots (35); a multi-phase stator winding (1420) accommodated in said
plurality of slots (35); a rotor (3) rotatably supported by said frame (4) and
disposed inside said stator core (32) so as to electromagnetically
connect said stator core (32); wherein said stator winding (1420) comprises a plurality of U-shaped
conductor segments (33, 1433) each of which has a pair
of legs (1433r), and each of said legs(1433r) is inserted in a slot from one
end of said stator core (32) and connected to be paired to another
at a portion extending from the other end of said stator core
(32).
Claim 2
Dependent Claim
31 words
The liquid-cooled rotary electric machine as claimed
in claim 1 having a space factor more than 55 %, wherein each of said U-shaped conductor segments (33, 1433)
comprises a flat wire.
Claim 3
Dependent Claim
28 words
The liquid-cooled vehicle rotary electric machine as
claimed in claim 1, wherein said stator core (32) and said stator winding (1420) are
liquid-tightly enclosed by said frame (4).
Claim 4
Dependent Claim
36 words
The liquid-cooled rotary electric machine as claimed
in claim 1, wherein each of said legs(1433r) inserted in said plurality of
slots (35) is closely fitted to one of said plurality of slot
via an insulator (1434).
Claim 5
Dependent Claim
66 words
The liquid-cooled vehicle rotary electric machine as
claimed in claim 1, wherein said rotor (3) has a plurality of different magnetic poles
(7, 73) alternately disposed at prescribed intervals in the
circumferential direction thereof, and the number of said slots (35) is larger than the product
of the number of said magnetic poles (7, 73) and the number of
the phases of said stator winding (1420).
Claim 6
Dependent Claim
59 words
The liquid-cooled rotary electric machine as claimed
in claim 1, wherein said stator winding (1420) has a plurality of coil ends
formed of said U-shaped conductor segments (33, 1433) separated
from each other, each of said coil ends is covered by and filled with
insulating material (300), and said insulating material (300) is closely fitted to said
frame (4).
Claim 7
Dependent Claim
31 words
The liquid-cooled rotary electric machine as claimed
in claim 1, wherein said stator winding (1420) is supplied with larger current
at said motor mode than current generated at said generator mode.
References Cited (Backward Citations)
No citation records indexed.
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