[특허]High pole density three phase motor

High pole density three phase motor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02K-011/00
출원번호	US-0538256 (1990-06-14)
발명자 / 주소	Kordik Jeffrey A. (Aptos CA)
출원인 / 주소	Applied Motion Products, Inc. (Scotts Valley CA 02)
인용정보	피인용 횟수 : 39 인용 특허 : 0

초록 ▼

A three phase DC motor (10) including a rotor portion (12) and a stator portion (16). The rotor portion (12) includes 6N±2 permanent magnet poles (32), and the stator portion(16) includes 6N electromagnet poles where N in an integer. The motor (10) is characterized in that it has a high pole density, thus enabling improved efficiency, while retaining acceptable non constant torque characteristics. Since the inventive motor configuration provides for a symmetrical winding pattern, no assymetrical radial forces are produced. The inventive configuration further allows for small motor size in the height dimension. A first preferred embodiment of the motor (10) is adapted for three phase power to be connected to the motor windings (50), (56) and (58) in a “Y”fashion. An alternate preferred embodiment of the invention (610) has coil windings (650), (656) and (658) connected in delta configuration.

대표청구항 ▼

An improved direct current electric motor comprising: a rotor portion including a ferromagnetic ring magnet divided into 6N±2 alternately polarized permanently magnetized zones of equal size and shape, where N is any positive integer greater than 1 ; a stator portion including a rigid magnetically conducting stator core and a plurality of conducting windings wrapped thereabout, the stator core including 6N of symmetrically arrayed pole portions of equal size; rotational means for allowing said rotor portion to rotate with respect to said stator portion, and for transferring power from the motor; and electrical power and control means for operating the motor, wherein; said pole portions are arranged such that there is a plurality of opposing pairs of said pole portions, said opposing pairs each comprising two of said pole portions which are diametrically opposed across a circumference of said stator core; said plurality of conducting windings includes a first winding wire, a second winding wire and a third winding wire, with each of said first, second and third winding wires being wrapped around 6N/3 of said poles such that: each of said first winding wire, said second winding wire and said third winding wire is wrapped around at least one of said opposing pairs of said pole portions.

이 특허를 인용한 특허 (39)

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Vinson, Wade D.; Franz, John P.; Jarrah, Yousef, Cooling fan for electronic device.
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Crapo, Alan D.; Walls, Todd A.; Hartsfield, Jr., Richard E., Electric power steering system including a permanent magnet motor.
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Crapo,Alan D.; Walls,Todd A.; Hartsfield, Jr.,Richard E., Electric power steering system including a permanent magnet motor.
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Dub?, Jean-Yves; Cros, J?r?me; Viarouge, Philippe, High performance brushless motor and drive for an electrical vehicle motorization.
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Dube, Jean-Yves; Cros, Jerome; Viarouge, Philippe, High performance brushless motor and drive for an electrical vehicle motorization.
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Huang Ben (Palo Alto CA) Hartman Albert (Palo Alto CA), High speed ten pole/twelve slot D.C. brushless motor with minimized net radial force and low cogging torque.
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Rollins, Patrick; Lucas, George, Integrated fan drive system for air-cooled heat exchanger (ACHE).
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Dub?, Jean-Yves; Lafond, Guy; Quirion, Benoit, Method and apparatus for proportionally assisted propulsion.
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Liu, Raymond Y.; Chung, Estella C.; Morita, Jr., William K., Motor controller with hall sensor misalignment compensation.
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Mock, M. Robert; Liu, Raymond Y., Motor controller with hall sensor output misalignment compensation using delayed or shifted commutation.
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Nashiki Masayuki,JPX, Motor with reduced torque ripple.
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Strothmann,Thomas, Multi pole electrical machine with reduced cogging force.
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Walls,Todd A.; Crapo,Alan D., Permanent magnet electric machine having reduced cogging torque.
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Toshimi Abukawa JP; Kazuo Ohnishi JP; Hideaki Suzuki JP; Hitoshi Ishii JP; Keiichi Abe JP, Permanent-magnet revolving electrodynamic machine with a concentrated winding stator.
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Takura Toshiyasu,JPX, Polyphase motor and polyphase motor system for driving the same.
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Crapo, Alan D.; Walls, Todd A.; Hartsfield, Jr., Richard E.; Ketterer, Charles P.; De Luca, Ken, Reduced cogging torque permanent magnet electric machine with rotor having offset sections.
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Horst,Gary E; Hoemann,Keith I, Reduced coil segmented stator.
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Springer Gilbert D., Rotor capable of being used as a recording media.
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Hatfield, Eric E.; Ortt, Earl M., Stator assembly for a brushless motor in a power tool.
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Springer Gilbert D. ; Springer Mark F., Thin film electric motors.
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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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High pole density three phase motor 원문보기

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이 특허를 인용한 특허 (39)

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