Back to results
US 6,806,607 B2Granted
Electric motor
AssigneeJohnson Electric S.A.
InventorJames Ching Sik Lau
Life of this patent
Estimating the term…
Abstract
A miniature PMDC motor 10 has a permanent magnet stator comprising two arcuate ceramic magnets 20 fitted to a can-like housing 11 and circumferentially separated by interdisposed rubber magnets 21 wedging or nipping the ceramic magnets 20 in place within the housing 11 without the use of circumferential magnet stops formed in the side of the housing.
Claims5
A miniature electric motor comprising:
- a wound rotor;
- a permanent magnet stator disposed about the rotor;
- a housing supporting the permanent magnet stator;
- wherein the permanent magnet stator comprises at least two arcuate ceramic magnets separated circumferentially by rubber magnets.
1 more element
Dependencies are inferred from the claim text.