[특허]Dynamoelectric machine commutator structure and method of making same

[미국특허] Dynamoelectric machine commutator structure and method of making same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02K-023/38 B65H-081/00
출원번호	US-0244586 (1981-03-17)
발명자 / 주소	Penn William B. (Erie PA) Zgraggen Martin A. (Erie PA)
출원인 / 주소	General Electric Co. (Schenectady NY 02)
인용정보	피인용 횟수 : 18 인용 특허 : 1

초록 ▼

A dynamoelectric machine commutator structure having a plurality of conductive commutator segments secured in operating position by a commutator banding is characterized by including a flexible, thermally stable dielectric coating material between the outer edges of the commutator banding and the conductor segments in order to effectively seal the junction between those members, thereby preventing the deposit or buildup of electrically conductive contaminants at that junction so that the likelihood of electrically short circuiting the conductive segments of the commutator is effectively eliminated. According to the preferred method of the invention, a banded commutator is formed by applying such a coating to predetermined portions of the banding grooves so that the coating effectively seals the junctions between the banding and the conductive segments of the commutator, thereby preventing the accumulation of conductive contaminants at those junctions. In one embodiment a release layer is provided on the side of the coating facing the commutator banding in order to establish the junction between the banding and the release layer as the most preferred site of any contaminant-collecting fissures that may be created by relative movement between the banding and the commutator segments.

대표청구항 ▼

A dynamoelectric machine commutator structure comprising a plurality of commutator conductive segments mounted in a cylindric array on a supporting hub member, said commutator segments being electrically insulated from one another and from said hub member, at least one annular groove defined in the outer surface of said array of commutator segments for receiving a commutator banding therein, a commutator banding mounted in said groove to apply a radially inward force to the commutator segments, and the improvement comprising a coating of flexible, thermally stable and electrical track resistant material mounted on and adhered to a predetermined upper portion of the side walls of said groove and at least the edge part of the radially outer surface of said banding to completely seal the junction between the radially outer edge surface of the banding and the commutator segments thereby to prevent electrically conductive contaminants from collecting in that junction and causing electrical tracking between the commutator segments.

이 특허에 인용된 특허 (1) 인용/피인용 타임라인 분석

Zgraggen Martin A. (Erie PA), Method for making and applying irradiation curable glass banding.
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이 특허를 인용한 특허 (18) 인용/피인용 타임라인 분석

Du, Hung T.; Verbrugge, Brandon L.; West, Joshua F.; Sell, Michael R.; Walter, Richard T.; Ortt, Earl M.; Stone, John C., Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion.
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Du,Hung T.; Walter,Richard T.; Sell,Michael R.; West,Joshua F., Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion.
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Du, Hung T.; Walter, Richard T., Method for forming a power tool.
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Du,Hung T.; Walter,Richard T.; Sell,Michael R.; West,Joshua F., Method for forming an armature for an electric motor.
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Du,Hung T., Method for forming an armature for an electric motor for a portable power tool.
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Du, Hung T., Method for forming an electric motor having armature coated with a thermally conductive plastic.
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Du,Hung T.; Verbrugge,Brandon L.; West,Joshua F.; Sell,Michael R.; Walter,Richard T.; Smith,David J.; Ortt,Earl M.; Stone,John C.; White,Howard T., Method for making an encapsulated coil structure.
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DeLaurentis, Angelo A., Method of curing a non-metallic band.
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Du, Hung T.; Verbrugge, Brandon L.; West, Joshua F.; Sell, Michael R.; Walter, Richard T.; Smith, David J.; Ortt, Earl M.; Stone, John C.; White, Howard T., Method of forming a power tool.
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Du, Hung T.; Verbrugge, Brandon L.; West, Joshua F.; Sell, Michael R.; Walter, Richard T.; Smith, David J.; Ortt, Earl M.; Stone, John C.; White, Howard T., Method of forming a power tool.
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Du, Hung T.; Verbrugge, Brandon L.; West, Joshua F.; Sell, Michael R.; Walter, Richard T.; Smith, David J.; Ortt, Earl M.; Stone, John C.; White, Howard T., Method of forming a power tool.
상세보기
Du, Hung T.; Verbrugge, Brandon L.; West, Joshua F.; Sell, Michael R.; Walter, Richard T.; Smith, David J.; Ortt, Earl M.; Stone, John C.; White, Howard T., Method of forming a power tool.
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Du, Hung T.; Walter, Richard T., Method of forming a power tool.
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Du, Hung T.; Walter, Richard T., Method of forming a power tool.
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Smith, David J.; Stone, John C.; Tumberlinson, Robert; Ortt, Earl M., Method of making an armature.
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West, Joshua F., Method of making an armature.
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Du, Hung T.; Verbrugge, Brandon L.; West, Joshua F.; Sell, Michael R.; Walter, Richard T.; Smith, David J.; Ortt, Earl M.; Stone, John C.; White, Howard T., Method of manufacturing a power tool with molded armature.
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Du, Hung T.; West, Joshua F.; Walter, Richard T., Method of manufacturing an electric motor of a power tool and of manufacturing the power tool.
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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 commutator structure and method of making same 원문보기