Title:
ROTOR WITH SIMPLIFIED MAGNET HOLDING
Document Type and Number:
WIPO Patent Application WO/2024/094801
Kind Code:
A1
Abstract:
The invention relates to an internal rotor comprising a yoke (10), magnets (50), a shaft (11) and one or two end plates (20, 30) at the axial end of the rotor. The inner surface (51) of each of the magnets is arranged against the periphery of the yoke. The or each end plate (20, 30) has, on its periphery, N claws (21, 31) projecting in the axial direction, which are formed by blades extending approximately perpendicular to the surface of the end plate. There is interference between the end plates (20, 30) and the assembly composed of the yoke (10) and the magnets (50). This interference increases as the end plates are axially fitted onto the assembly, such that the claws (21, 31) apply an increasing force on the magnets (50) during assembly. The magnets and claws are inscribed within the tubular casing (55) of the magnets, without penetrating into the air gap between the rotor and the stator.
Inventors:
FOUCAUT ANTOINE (FR)
Application Number:
PCT/EP2023/080582
Publication Date:
May 10, 2024
Filing Date:
November 02, 2023
Export Citation:
Assignee:
MOVING MAGNET TECH (FR)
International Classes:
H02K1/2781; H02K1/27915; H02K1/30; H02K5/128
Domestic Patent References:
| WO2022243411A1 | 2022-11-24 |
Foreign References:
| DE4331803A1 | 1995-03-23 | |||
| JP2003037954A | 2003-02-07 | |||
| US20090001838A1 | 2009-01-01 | |||
| JP2010246239A | 2010-10-28 | |||
| GB2559059A | 2018-07-25 | |||
| JP2003037954A | 2003-02-07 | |||
| GB2559059A | 2018-07-25 | |||
| DE4331803A1 | 1995-03-23 | |||
| US20200212739A1 | 2020-07-02 |
Attorney, Agent or Firm:
IP TRUST (FR)
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