US5162686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor rotor having magnets
Assignee: KLEBER GIRAUDOUX
•
Filing: 1990-11-27
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Granted: 1992-11-10
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Expires: 2010-11-27
Abstract
Abstract A rotor for a motor having magnets, the rotor comprising a rotary shaft and at least one pair of magnetic poles with magnets disposed therebetween having azimuth magnetization, the rotor being characterized in that the poles and the magnets are fixed to each other and to the rotor by a section member (30) of constant thickness having a section with as many lobes (31, 32, 33, 34) as there are poles in the motor, said lobes being interconnected in pairs by curved portions, (41, 42, 43, 44) which are substantially circular arcs of diameter close to that of the shaft (1) of the motor. The invention is applicable to a synchronous motor having magnets.
Inventors
- 👤 Laurent Royer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:51
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/27; H02K1/2706; H02K1/272; H02K1/274; H02K1/2753; H02K1/276; H02K1/2766; H02K1/2773
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
109 words
A rotor for a motor having magnets, the rotor comprising a rotary shaft and at least one pair of magnetic poles made of laminations with said magnets disposed therebetween having azimuth magnetization, the rotor being characterized in that the poles and the magnets are fixed to each other and to the rotor by a section member (30) of constant thickness having a section with as many lobes (31, 32, 33, 34) as there are said poles in the motor, said lobes being interconnected in pairs by curved portions (41, 42, 43, 44) which are substantially circular arcs of diameter close to that of the shaft (1) of the motor.
Claim 2
Dependent Claim
109 words
A rotor for a motor having magnets, the rotor comprising a rotary shaft and at least one pair of magnetic poles made of laminations with said magnets disposed therebetween having azimuth magnetization, the rotor being characterized in that the poles and the magnets are fixed to each other and to the rotor by a section member (30) of constant thickness having a section with as many lobes (31, 32, 33, 34) as there are said poles in the motor, said lobes being interconnected in pairs by curved portions (41, 42, 43, 44) which are substantially circular arcs of diameter close to that of the shaft (1) of the motor.
Claim 3
Dependent Claim
34 words
A rotor according to claim 1, characterized in that said section member is made of a material selected from the group comprising: aluminum alloys, copper alloys, austenitic stainless steel, glass fiber, and carbon fiber.
Claim 4
Dependent Claim
19 words
A rotor according to claim 1, characterized in that it includes means (91) for reinforcing the section member (30).
Claim 5
Dependent Claim
22 words
A rotor according to claim 3, characterized in that said means comprise split tubes (91) of resilient metal engaged inside the lobes.
Claim 6
Dependent Claim
38 words
A rotor according to claim 1, characterized in that the laminations (11, 12, 13, 14) of the rotor are assembled by means of end plates (54, 55) clamped together by threaded rods (51) provided with nuts (52, 53).
Claim 7
Dependent Claim
39 words
A rotor according to claim 1, characterized in that the laminations (11, 12, 13, 14) of the rotor are assembled by means of end plates (54, 55) clamped together by smooth rods (71) provided with grip rings (72, 73).
Claim 8
Dependent Claim
33 words
A rotor according to claim 1, characterized in that the laminations (11, 12, 13, 14) of the rotor are assembled by means of end plates (54, 55) clamped together by rivets (62, 63).
References Cited (Backward Citations)
US2043010A
Cited
FR2048432A5
Cited
US3979821A
Cited
US4445062A
Cited
US4663551A
Cited
US5091668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-10 | 2004-05-11 | 2004-11-10 | $7700.00 | Window Closed / Lapsed |