Electrical machines using axially-magnetized curvilinear permanent magnets
Номер патента: EP4278427A1
Опубликовано: 22-11-2023
Автор(ы): Mark Senti, Philippe Masson
Принадлежит: Advanced Magnet Lab Inc
Опубликовано: 22-11-2023
Автор(ы): Mark Senti, Philippe Masson
Принадлежит: Advanced Magnet Lab Inc
Реферат: A configuration of a plurality of elongate, axially -magnetized curvilinear permanent magnets having high length to cross-section ratio, produced, for example, by the PM-Wire manufacturing process, that produce an electric machine permanent magnet rotor structure with a very low intrinsic demagnetizing field, allowing for operation at high temperature, at high RPM, or enabling use of permanent magnets with low coercivity fields. Exemplary embodiments of two-pole, four-pole, six-pole and eight-pole rotor permanent magnet configurations for single and dual rotor applications. The novel configuration of axially-magnetized curvilinear permanent magnets reduces demagnetization at high temperature, increases electric machine power density, reduces weight by eliminating the need for back iron, increases motor reliability, reduces manufacturing costs, and enables higher electric motor torque and electric generators. Typical applications of the axially-magnetized curvilinear permanent magnets, rotors, and electric machines of the invention are in motors for electrically-powered ground vehicles, rotorcraft, airplanes and other aircraft.
Electric machines using axially-magnetized curvilinear permanent magnets
Номер патента: US12081076B2. Автор: Philippe Masson,Mark Senti. Владелец: Advanced Magnet Lab Inc. Дата публикации: 2024-09-03.