[특허]Light weight machine with rotor employing permanent magnets and consequence poles

Light weight machine with rotor employing permanent magnets and consequence poles 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02P-009/14
출원번호	US-0306120 (1994-09-14)
발명자 / 주소	Scott Harold C. Bednorz Ardel R. Johnson G. Weylin Anderson William J. Davis Mitchell K. Tally Henry
출원인 / 주소	Coleman Powermate, Inc.
대리인 / 주소	Phillips
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

A mechanically and electrically efficient, lightweight, portable motor-generator includes a stator having a plurality of windings and a rotor with a body of soft-magnetic material carrying a plurality of permanent, high energy product magnets in a surface near the stator such that relative motion of the rotor and stator causes magnetic flux from the permanent magnets to interact with and induce current in the stator windings. The magnets are mounted in insets formed in the rotor surface which includes portions between the insets to form respective consequence poles. The rotor is a hollow cylinder with the magnets mounted on an internal surface, and the stator is concentrically disposed within the cylinder. The stator includes first and second windings. A first rectification circuit, responsive to signals from the first stator winding, develops a relatively high voltage, low amperage DC signal; and a second rectification circuit, responsive to signals from the second stator winding, develops a relatively low voltage high amperage DC signal. In one preferred embodiment, the first and second windings are 3-phase, and the corresponding phases of the respective 3-phase windings are grouped together as a unit and wound about the core such that the corresponding phases of the respective 3-phase windings coils are wound in continuous thermal contact with each other. Each phase of at least one winding includes a first portion defined by a tap to provide a third voltage output.

대표청구항 ▼

[ We claim:] [1.] A machine comprising a stator and a rotor, the stator including a plurality of windings, and the rotor comprising a body of soft-magnetic material with a plurality of permanent magnets in a surface disposed proximate to the stator, separated from the stator by a predetermined gap distance, such that relative motion of the rotor and stator causes magnetic flux from the permanent magnets to interact with and induce current in the stator windings, wherein the permanent magnets are high energy product magnets with a predetermined surface area, and the permanent magnets are mounted in insets formed in the rotor surface proximate to the stator, the rotor surface proximate to the stator includes portions between the insets to form respective consequence poles, each consequence pole having a predetermined surface area, and the magnets are disposed within the insets, separated from adjacent consequence poles by a predetermined distance, improved wherein:the surface area of the permanent magnets proximate to the stator is greater than the surface area of the consequence poles proximate to the stator by the ratio of the flux density produced by the permanent magnet to the allowed flux density of the consequence pole;the permanent magnets have a flux density of at least on the order five kilogauss;the insets are symmetrically disposed in the rotor surface proximate to the stator, the consequence poles are symmetrically disposed in the rotor surface proximate to the stator and the permanent magnets are centrally disposed within the insets;the distance separating the permanent magnets from the consequence poles is greater than the distance separating the rotor surface from the stator;the rotor comprises a hollow cylinder with the magnets mounted on an internal surface of the cylinder, and the stator is concentrically disposed within the cylinder;the stator is generally annular with a central aperture and the rotor is concentrically disposed for rotation within the aperture, the rotor being adapted for mounting on a shaft journaled through the stator central aperture; andthe stator includes a first winding for generating a relatively high voltage low amperage signal and a second winding for generating a relatively low voltage high amperage signal; the machine further including:a first rectification circuit, responsive to signals from the first stator winding, for generating a relatively high voltage low amperage DC signal; anda second rectification circuit, responsive to signals from the second stator winding, for generating a relatively low voltage high amperage DC signal.

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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

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Light weight machine with rotor employing permanent magnets and consequence poles 원문보기

초록 ▼

대표청구항 ▼

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Light weight machine with rotor employing permanent magnets and consequence poles 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (28)

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