[특허]Permanent magnet segment for use with a BLDC motor assembly

Permanent magnet segment for use with a BLDC motor assembly 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02K-021/12 F02M-037/08 H02K-001/27 H02K-015/03 H02K-005/22 H02K-011/00
출원번호	US-0616909 (2012-09-14)
등록번호	US-8987964 (2015-03-24)
발명자 / 주소	Achor, Kyle Dean
출원인 / 주소	Carter Fuel Systems, LLC
대리인 / 주소	Jones Day
인용정보	피인용 횟수 : 0 인용 특허 : 119

초록 ▼

A BLDC electric motor assembly (24) includes a rotor (42) having a plurality of magnet segments (50) securely retained thereabout by an annular ring (68) which is shrunk in situ in an electromagnetic forming operation. The magnet segments (50) are formed with tongues (62, 64) on their upper and lower ends (56, 58). One tongue (64) seats in a retaining pocket (48) molded on the rotor shaft (40), whereas the other tongue (62) provides a ledge into which the ring (68) seats. After the magnet forming operation, wherein the ring (68) is shrunk, the outer surface of the ring (68) is flush with the outer surfaces (54) of the magnet segments (50).

대표청구항 ▼

1. A permanent magnet segment of the type used in an array of permanent magnet segments supported by an annular ring on a rotor in a brushless direct current (BLDC) electric motor assembly, said permanent magnet segment comprising: an inner surface;a convex, semi-cylindrical outer surface;an upper end;a lower end spaced longitudinally from said upper end;opposing, generally parallel side edges extending longitudinally between said upper and lower ends;a first tongue adjacent said upper end sized and shaped for receiving an annular ring member adjacent to the outer surface of the permanent magnet segment; anda second tongue adjacent said lower end that is sized and shaped to be retained by a retaining pocket of a BLDC electric motor assembly;wherein the permanent magnet segment is one of an array of permanent magnet segments, wherein each of the array of permanent magnet segments is arranged so that the annular ring member loosely encircles the array of permanent magnet segments during a process for assembling the BLDC electric motor assembly, and wherein the annular ring member shrinks in size during the process for assembling the BLDC electric motor assembly. 2. The permanent magnet segment according to claim 1, wherein each of the array of permanent magnet segments is arranged so that when the annular ring member shrinks, at least an outer circumferential edge of the annular ring member is generally aligned with the outer surface of each permanent magnet segment of the array of permanent magnet segments. 3. The permanent magnet segment according to claim 2, wherein each of the array of permanent magnet segments is arranged so that when the annular ring member is shrunk, the annular ring member exerts uniform compression on the permanent magnet segments and holds each of array of permanent magnet segments in an operative position. 4. The permanent magnet segment according to claim 1, wherein each of the array of permanent magnet segments is arranged so that each permanent magnet segment spans approximately 90 degrees about a circumference of the rotor when the BLDC electric motor assembly is assembled. 5. A permanent magnet segment of the type used in an array of permanent magnet segments supported on a rotor in a brushless direct current (BLDC) electric motor assembly, said permanent magnet segment comprising: an inner surface;a convex, semi-cylindrical outer surface;an upper end;a lower end spaced longitudinally from said upper end;opposing, generally parallel side edges extending longitudinally between said upper and lower ends;a first tongue adjacent one of said upper end or lower end and a second tongue adjacent the other of said upper end or lower end;said first tongue when assembled with a plurality of permanent magnet segments is encircled by a solid, continuous and unbroken annular ring member, wherein said annular ring member shrinks in size during an electro-magnetic forming operation during the assembly of the BLDC electric motor assembly, wherein the annular ring member is made of electrically conductive material, and wherein a diameter of the annular ring member shrinks during the process for assembling the BLDC electric motor assembly. 6. The permanent magnet segment according to claim 5, wherein each of the plurality of permanent magnet segments is arranged so that when the annular ring member shrinks, at least an outer circumferential edge of the annular ring member is generally aligned with the outer surface of each permanent magnet segment of the array of permanent magnet segments. 7. The permanent magnet segment according to claim 5, wherein each of the array of permanent magnet segments is arranged so that when the annular ring member is shrunk, the annular ring member exerts uniform compression on the permanent magnet segments and holds each of array of permanent magnet segments in an operative position. 8. The permanent magnet system according to claim 5 wherein the said second tongue of each permanent magnet segment is sized and shaped to be retained by a retaining pocket of the BLDC electric motor assembly. 9. The permanent magnet segment according to claim 5, wherein each of the array of permanent magnet segments is arranged so that each permanent magnet segment spans approximately 90 degrees about a circumference of the rotor when the BLDC electric motor assembly is assembled. 10. A permanent magnet segment of the type used in an array of permanent magnet segments supported by an annular ring on a rotor in a brushless direct current (BLDC) electric motor assembly, said permanent magnet segment comprising: an inner surface;a convex, semi-cylindrical outer surface;an upper end;a lower end spaced longitudinally from said upper end;opposing, generally parallel side edges extending longitudinally between said upper and lower ends;a first tongue adjacent said upper end sized and shaped for receiving an annular ring member adjacent to the outer surface of the permanent magnet segment; anda second tongue adjacent said lower end that is sized and shaped to be retained by a retaining pocket of a BLDC electric motor assembly;wherein the permanent magnet segment is one of an array of permanent magnet segments, wherein each of the array of permanent magnet segments is arranged so that the annular ring member loosely encircles the array of permanent magnet segments during a process for assembling the BLDC electric motor assembly, and wherein a diameter of the annular ring member shrinks during the process for assembling the BLDC electric motor assembly.

이 특허에 인용된 특허 (119)

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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
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Permanent magnet segment for use with a BLDC motor assembly 원문보기

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Permanent magnet segment for use with a BLDC motor assembly 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허에 인용된 특허 (119)

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AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

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