[특허]Dynamoelectric machine and method for manufacturing same

[미국특허] Dynamoelectric machine and method for manufacturing same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02K-017/16
출원번호	US-0480839 (1995-06-07)
발명자 / 주소	Boyd Jr. John H. (Holland MI) Saban Daniel M. (Fort Wayne IN)
출원인 / 주소	General Electric Company (Fort Wayne IN 02)
인용정보	피인용 횟수 : 29 인용 특허 : 40

초록 ▼

A dynamoelectric machine constructed for speed and accuracy of manufacturing has a stator core constructed of 90°symmetrical stator laminations and the windings have differing numbers of poles which overlap in slots of the stator core are wound of the core formed by the laminations in unique fashion. The rotor bars of the machine are skewed to optimize performance of the machine when in the form of a single phase induction motor. Magnet wire leads of the windings are connected directly to terminals on a plug and terminal assembly which is formed for positive location on an end frame of the machine without welding or other fastening to the end frame. The end frames of the machine and stator laminations forming the stator core are formed so as to increase the precision of the final position of the stator relative to the rotor assembly of the dynamoelectric machine. The end frames are constructed for grounding without the use of fasteners or wire. The engagement of the end frames with the stator core is employed as the basis for alignment of the machine components.

대표청구항 ▼

A dynamoelectric machine comprising: a stator assembly including a stator core having slots and a bore therein, energizable windings disposed on the stator core, and at least one bearing; a rotor assembly comprising a shaft supported by the at least one bearing, and a squirrel cage rotor fixedly mounted on the shaft for conjoint rotation therewith, the rotor being disposed at least in part in the stator core bore, and the rotor and stator assembly being adapted for magnetic coupling therebetween during energization of the windings; the rotor comprising a stack of generally thin, circular rotor laminations made of highly magnetically permeable material, each rotor lamination having slots therein spaced circumferentially around its periphery and each slot including a radially inner portion and a radially outer skew portion extending outwardly and laterally from the radially inner portion toward the circumference of the rotor lamination, each slot at least partially overlying corresponding slots on the other rotor laminations of the stack such that the at least partially overlying slots of the rotor laminations define passages extending axially through the rotor, and electrically conductive material disposed in each of the passages; the rotor laminations in the stack being arranged in at least two sets, the slots of a first of said sets of rotor laminations having their skew portions extending laterally in a first direction and the slots of a second of said sets of rotor laminations having their skew portions extending laterally in a second direction opposite the first direction, the radially inner portions of corresponding slots in said first and second sets of rotor laminations overlapping each other; the laterally outermost points of the skew portions of the corresponding slots in said first set of rotor laminations lying generally along a first axially extending line and the laterally outermost points of said skew portions of the corresponding slots in said second set of rotor laminations lying generally along a second axially extending line, the distance d between the first line and second line falling within a range expressed by the following equation, (2pr)/(2S-P)2p2S-P)+drd2 is an amount selected to inhibit the occurence of more than one saturation region associated with each rotor slot, and r2 is approximately the distance between first and second parallel planes, the first plane including the radially outermost point of the slot and the second plane including the first or second axially extending line nearest the radially outermost point, the first and second planes being perpendicular to and intersecting a third plane including the first and second lines.

이 특허에 인용된 특허 (40) 인용/피인용 타임라인 분석

Uchida Hiroyuki (Yamanashi JPX), Anti-clogging offset for rotor of synchronous motor.
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Lykes Robert E. (Troy OH) King James L. (Troy OH), Bearing bracket for a dynamoelectric machine.
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Newberg Barry M. (Creve Coeur MO), Bearing retainer structure.
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Frank James P. (Rock Falls IL) King James L. (Holland MI), Dynamoelectric machine.
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McDonald George M. (Liberty Township ; Hardin County OH), Dynamoelectric machine with extended cleat assembly.
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Crow William D. (Maryland Heights MO) Williams Ronald D. (St. Charles MO), Electric machinery switch assembly.
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Stone Thomas W. (Owosso MI), Electric motor bearing.
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Lewis John G. (St. Louis MO), Electric motor stator support structure and method of manufacturing same.
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Davis William L. (Milford IL), Electric motor with unitary rotor housing.
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Marshall James W. (Towson MD) Gotchy David (Roscoe IL) Uffelman Bradley L. (Rockford IL) Leimbach Wendell B. (Baltimore MD) Wilhelmi Albert A. (Baldwin MD), Encapsulated motor with precision bearing registration.
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Nolte Duane R. (Wausau WI), Enclosed switch contact assembly.
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Smith Peter B. (Tarboro NC), Improved heat sink and shaft bearing support for thermo-plastic housing.
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Ito Motoya (Hitachi JPX) Fujimoto Noboru (Hitachi JPX) Takahashi Noriyoshi (Hitachi JPX) Watanabe Masatoshi (Hitachi JPX) Yamashita Seizi (Katsuta JPX), Induction motor.
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Atherton Charles G. (Mechanicsburg PA) Swartz John C. (Harrisburg PA), Interconnection system for electrical motors.
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Workman John (Greyabbey GB5), Laminated rotor with cast end windings.
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Hata Toyohiko (Tokyo JPX) Aoki Etsuo (Tokyo JPX), Magnet-retaining structure for motor.
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King James L. (Holland MI) Hennessy John E. (Holland MI), Method of assembling a dynamoelectric machine.
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Frank James P. (Rock Falls IL), Method of assembling a switch and terminal assembly.
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Frank James P. (Rock Falls IL) King James L. (Holland MI), Method of assembling a switch and terminal assembly to an end frame for a dynamoelectric machine.
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Singh Karnel (North Olmsted OH) Denny Thomas A. (Lorain OH) Fritz Daniel P. (Elyria OH) Rising Orville C. (LaGrange OH), Method of assembly of dynamoelectric machines.
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Galloway Michael D. (Middletown PA) Rose William H. (Harrisburg PA) Shaffer David T. (Harrisburg PA), Method of making an electrical circuit package.
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Hirabayashi Michio (Ibaraki JPX) Koizumi Tosio (Nara JPX) Shibao Kiyotada (Amagasaki JPX), Method of manufacturing a compact switch.
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Nield Joseph G. (Cumberland RI), Miniature electric circuit protector.
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Noguchi ; Ichiro, Miniature motor.
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Gingerich David J. (Swatara PA) Granitz Richard F. (Harrisburg PA) Rose William H. (Harrisburg PA) Shaffer David T. (Harrisburg PA), Motor brush assembly.
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Huber Duane J. (Bartlett IL), Motor brush holder assembly.
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Senor Ronald E. (North Attleboro MA), Motor protector with metal housing and with preformed external heater thereon.
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Atherton Charles G. (Mechanicsburg PA) Swartz John C. (Harrisburg PA), Motor stator and connector for making connections to stator windings.
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Crouse Ronald J. (Dallas TX), Optical micro-switch apparatus.
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Haas Roland (Hofheim DEX) Brandenstein Manfred (Eussenheim DEX) Herrmann Gerhard (Schweinfurt DEX) Thurn Karl (Obertheres DEX), Ring-shaped machine part.
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Iwamatsu Noboru (Hino JPX) Hayashi Yoshiyuki (Hino JPX), Rotor structures of A.C. synchronous servo motor.
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Lakin Bryan L. (Springfield MO), Self-aligning bearing and oil cap mount for an electric motor.
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Hibino Sadayoshi (Suzuka JPX) Sato Tadayuki (Mie JPX) Mochizuki Motoyasu (Aichi JPX), Squirrel-cage rotor with shaped-conductor harmonic reduction.
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Anderson Wesley K. (DeKalb IL) Stanley Willard H. (Sterling IL), Switch terminal assembly having strip terminal and mounting member adapted to ground dynamoelectric machine casing on si.
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Keck Arthur C. (Fort Wayne IN), Terminal block assembly for a leadless motor.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Dynamoelectric machine and method for manufacturing same 원문보기

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