US5063320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeder lead wire of rotor for electric machine
Assignee: Hitachi Ltd
•
Filing: 1990-09-14
•
Granted: 1991-11-05
•
Expires: 2010-09-14
Abstract
Abstract A rotor for an electric rotating machine includes a rotor winding, and a feeder lead wire connected to an inner end of the rotor winding so as to supply field current to the rotor winding. The feeder lead wire has a rising portion extending radially outwardly of a rotatable shaft, and a connecting terminal extending from the rising portion in a circumferential direction of the rotatable shaft.
Inventors
- 👤 Takashi Watanabe
- 👤 Tatsuro Ishizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:30
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/50; H02K3/51; H02K13/00; H02K13/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
96 words
In a rotor for an electric rotating machine, comprising a rotatable shaft; an iron core rotatable with said rotatable shaft; a rotor winding wound in a laminated manner and partially extending from said iron core in an axial direction; and a feeder lead wire connected to an inner end of said rotor winding so as to supply field current to said rotor winding; wherein said feeder lead wire has a rising portion extending radially outwardly of said rotatable shaft, and a connecting terminal extending from said rising portion in a circumferential direction of said rotatable shaft.
Claim 2
Dependent Claim
96 words
In a rotor for an electric rotating machine, comprising a rotatable shaft; an iron core rotatable with said rotatable shaft; a rotor winding wound in a laminated manner and partially extending from said iron core in an axial direction; and a feeder lead wire connected to an inner end of said rotor winding so as to supply field current to said rotor winding; wherein said feeder lead wire has a rising portion extending radially outwardly of said rotatable shaft, and a connecting terminal extending from said rising portion in a circumferential direction of said rotatable shaft.
Claim 3
Dependent Claim
36 words
A rotor claimed in claim 1, wherein said connecting terminal comprises a brazing surface portion brazed to said rotor winding and a brazing heat dissipation portion lying between said brazing surface portion and said rising portion.
Claim 4
Dependent Claim
120 words
In a rotor for an electric rotating machine, comprising a rotatable shaft; an iron core rotatable with said rotatable shaft; a rotor winding wound in a laminated manner and partially extending from said iron core in an axial direction; and a feeder lead wire connected to an inner end of said rotor winding so as to supply field current to said rotor winding; wherein said feeder lead wire has a plate-like rising portion extending radially outwardly of said rotatable shaft, and a connecting end portion extending from a side surface of an end of said plate-like rising portion in a circumferential direction of said rotatable shaft, said connecting end portion being brazed to the inner end of said rotor winding.
Claim 5
Dependent Claim
120 words
In a rotor for an electric rotating machine, comprising a rotatable shaft; an iron core rotatable with said rotatable shaft; a rotor winding wound in a laminated manner and partially extending from said iron core in an axial direction; and a feeder lead wire connected to an inner end of said rotor winding so as to supply field current to said rotor winding; wherein said feeder lead wire has a plate-like rising portion extending radially outwardly of said rotatable shaft, and a connecting end portion extending from a side surface of an end of said plate-like rising portion in a circumferential direction of said rotatable shaft, said connecting end portion being brazed to the inner end of said rotor winding.
Claim 6
Dependent Claim
37 words
A rotor claimed in claim 3, wherein said connecting end portion comprises a brazing surface portion brazed to said rotor winding and a brazing heat dissipation portion lying between said brazing surface portion and said rising portion.
Claim 7
Dependent Claim
110 words
A rotor for a electric rotating machine, comprising a rotatable shaft; an iron core rotatable with said rotatable shaft; a rotor winding provided at said iron core in a laminated winding manner; and a feeder lead wire brazed to an inner end of said rotor winding so as to supply field current to said rotor winding; said feeder lead wire having a rising portion in the vicinity of a portion of said feeder lead wire connected to said rotor winding, said feeder lead wire being brazed to the inner end of said rotor winding at a position offset from said rising portion in a circumferential direction of said rotatable shaft.
Claim 8
Dependent Claim
110 words
A rotor for a electric rotating machine, comprising a rotatable shaft; an iron core rotatable with said rotatable shaft; a rotor winding provided at said iron core in a laminated winding manner; and a feeder lead wire brazed to an inner end of said rotor winding so as to supply field current to said rotor winding; said feeder lead wire having a rising portion in the vicinity of a portion of said feeder lead wire connected to said rotor winding, said feeder lead wire being brazed to the inner end of said rotor winding at a position offset from said rising portion in a circumferential direction of said rotatable shaft.
Claim 9
Dependent Claim
45 words
A rotor claimed in claim 5, wherein said portion of said feeder lead wire connected to said rotor winding comprises a brazing surface portion brazed to said rotor winding and a brazing heat dissipation portion lying between said brazing surface portion and said rising portion.
Claim 10
Dependent Claim
91 words
An electric rotating machine comprising a stator core; a stator winding provided at said stator core in a winding manner; a rotor core rotatably mounted inside of said stator core; a rotor winding provided at said rotor core in a winding manner; and a feeder lead wire for supplying field current to said rotor winding, said feeder lead wire having a bent portion extending radially outwardly of a rotatable shaft of said rotor, and a connecting end portion extending from said bent portion in a circumferential direction of said rotatable shaft.
Claim 11
Dependent Claim
91 words
An electric rotating machine comprising a stator core; a stator winding provided at said stator core in a winding manner; a rotor core rotatably mounted inside of said stator core; a rotor winding provided at said rotor core in a winding manner; and a feeder lead wire for supplying field current to said rotor winding, said feeder lead wire having a bent portion extending radially outwardly of a rotatable shaft of said rotor, and a connecting end portion extending from said bent portion in a circumferential direction of said rotatable shaft.
Claim 12
Dependent Claim
39 words
An electric rotating machine claimed in claim 7, wherein said connecting end portion comprises a brazing surface portion brazed to said rotor winding and a brazing heat dissipation portion lying between said brazing surface portion and said bent portion.
References Cited (Backward Citations)
US2774899A
Cited
JPS4912710A
Cited
JPS5084802A
Cited
JPS51101803A
Cited
JPS5239102A
Cited
JPS5396604A
Cited
US4255683A
Cited
JPS5415320A
Cited
US4588916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-04 | 1995-05-06 | 1995-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-04 | 1999-05-06 | 1999-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-04 | 2003-05-06 | 2003-11-05 | $7700.00 | Window Closed / Lapsed |