Synchronous electric motor with permanent magnets
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02K-021/12
H02K-021/16
H02K-001/27
H02K-001/02
출원번호
US-0894742
(2014-06-02)
등록번호
US-9966823
(2018-05-08)
우선권정보
FR-13 55145 (2013-06-05)
국제출원번호
PCT/FR2014/051297
(2014-06-02)
국제공개번호
WO2014/195615
(2014-12-11)
발명자
/ 주소
Bouarroudj, Lilya
Matt, Jean-Claude
출원인 / 주소
Valeo Equipments Electriques Moteur
대리인 / 주소
Berenato & White, LLC
인용정보
피인용 횟수 :
0인용 특허 :
2
초록▼
A synchronous electric motor with permanent magnets (1, 11). The synchronous electric motor includes a wound stator (11) having axially extending stator teeth (13) formed in a frame (10), and a rotor (1) having a plurality of permanent magnets (3) extending axially in first recesses (4) of a cylinde
A synchronous electric motor with permanent magnets (1, 11). The synchronous electric motor includes a wound stator (11) having axially extending stator teeth (13) formed in a frame (10), and a rotor (1) having a plurality of permanent magnets (3) extending axially in first recesses (4) of a cylinder head (2). A dimensional ratio of a first outer diameter (D1) of the rotor (1) to a second outer diameter (D2) of the stator (11) is pre-determined so that the motor provides optimum efficiency. The dimensional ratio is pre-determined in such a way that the stator losses by Joule effect are reduced to a minimum. The synchronous electric motor is employed in electric compressors for motor vehicles.
대표청구항▼
1. A synchronous electric motor with permanent magnets (1, 11), the synchronous electric motor comprising: a wound stator (11) comprising a casing, and stator teeth (13) extending axially and formed in said casing (10), anda rotor (1) comprising a head, and a plurality of said permanent magnets (3)
1. A synchronous electric motor with permanent magnets (1, 11), the synchronous electric motor comprising: a wound stator (11) comprising a casing, and stator teeth (13) extending axially and formed in said casing (10), anda rotor (1) comprising a head, and a plurality of said permanent magnets (3) extending axially in first recesses (4) in said head (2),each of said permanent magnets (3) comprising a first parallelepiped portion close to a circumferential portion (5) of said rotor (1) and adjacent to a second wedge portion in the form of a wedge, close to a central portion (6) of said rotor (1);a dimensional ratio (r) of a first outer diameter (D1) of said rotor (1) to a second outer diameter (D2) of said stator (11) is between 0.63 and 0.7. 2. The synchronous electric motor with permanent magnets (1, 11) according to claim 1, wherein said dimensional ratio (r) is predetermined such that stator losses by Joule effect (PJ) are minimum. 3. The synchronous electric motor with permanent magnets (1, 11) according to claim 2, wherein said rotor (1) is of the flux concentration type. 4. The synchronous electric motor with permanent magnets (1, 11) according to claim 3, wherein said permanent magnets (3) comprise ferrite. 5. Equipment of a motor vehicle, comprising a synchronous electric motor with permanent magnets (1, 11) according to claim 3. 6. The synchronous electric motor with permanent magnets (1, 11) according to claim 2, wherein said permanent magnets (3) comprise by ferrite. 7. Equipment of a motor vehicle, comprising a synchronous electric motor with permanent magnets (1, 11) according to claim 2. 8. The synchronous electric motor with permanent magnets (1, 11) according to claim 1, wherein said rotor (1) comprises at least one plurality of second recesses (9) which extend axially, and are arranged between said permanent magnets (3) in an intermediate part of said rotor (1) between said central part (6) and said circumferential part (5). 9. The synchronous electric motor with permanent magnets (1, 11) according to claim 8, wherein tie rods are arranged in said second recesses (9). 10. The synchronous electric motor with permanent magnets (1, 11) according to claim 9, wherein said permanent magnets (3) comprise ferrite. 11. Equipment of a motor vehicle, comprising a synchronous electric motor with permanent magnets (1, 11) according to claim 9. 12. The synchronous electric motor with permanent magnets (1, 11) according to claim 8, wherein said permanent magnets (3) comprise ferrite. 13. Equipment of a motor vehicle, comprising a synchronous electric motor with permanent magnets (1, 11) according to claim 8. 14. The synchronous electric motor with permanent magnets (1, 11) according to claim 1, wherein said permanent magnets (3) comprise ferrite. 15. Equipment of a motor vehicle, comprising a synchronous electric motor with permanent magnets (1, 11) according to claim 14. 16. Equipment of a motor vehicle, comprising a synchronous electric motor with permanent magnets (1, 11) according to claim 1. 17. An electric compressor which is designed to equip a motor vehicle, wherein it comprises a synchronous electric motor with permanent magnets (1, 11) according to claim 1. 18. The synchronous electric motor with permanent magnets (1, 11) according to claim 1, wherein said permanent magnets (3) comprise ferrite.
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이 특허에 인용된 특허 (2)
Syverson Charles D. (North Mankato MN), Hybrid alternator.
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