Power-generating electric motor
OwnerYoshiaki Takahashiinventor
Life of this patent
Estimating the term…
Abstract
A power-generating electric motor (1) which is very excellent in the energy efficiency and capable of taking out an electric energy for a prolonged period of time, which motor comprises a rotor (2) made of a permanent magnet; an armature (11) disposed coaxially with the rotor (2) with an air gap therebetween and comprising a suitable number of field cores (13) provided each with a field coil (12); and a brushless control circuit, characterized by a high BH.sub.max permanent magnet (8) disposed inside the base portion of each magnet pole (5) of the rotor (2) and an induction coil (15) for an electric power generation disposed adjacent each of the field coils (12) of the armature (11).
Claims14
A power-generating electric motor comprising:
- a rotor;
- said rotor including:
- at least two magnet poles;
- an armature disposed coaxially relative to said rotor, said armature and said rotor defining therebetween an air gap;
- said armature including:
- a suitable number of field cores;
- each field core of said field cores including:
- a field coil;
- a brushless control circuit;
- the motor further including:
- a high BH.sub.max permanent magnet disposed inside each magnet pole of said magnet poles of said rotor;
- said high BH.sub.max permanent magnet having a duplex structure composed of an inner layer of Co--Fe--Y and an outer layer of Fe--Nd--B;
- and
- an induction coil disposed adjacent each of said field coils of said armature for the generation of electric power.
A power-generating electric motor comprising:
- a rotor;
- an armature disposed coaxially with the rotor with an air gap therebetween and comprising a suitable number of field cores provided each with a field coil;
- and
- a brushless control circuit;
- said motor comprising:
- a high BH.sub.max permanent magnet disposed inside each magnet pole of the rotor;
- and
- an induction coil for an electric power generation disposed adjacent each of the field coils of the armature;
- and
- said high BH.sub.max permanent magnet having a duplex structure composed of an inner layer of Co--Fe--Y and an outer layer of Fe--Nd--B.
An electric motor comprising:
- a rotor;
- an armature disposed coaxially relative to said rotor such that said rotor and said armature define therebetween an air gap,
- said armature including:
- a suitable number of field cores;
- a field coil associated with each field core of said field cores;
- and
- a brushless control circuit;
- the motor including:
- a high BH.sub.max permanent magnet disposed inside each magnet pole of said rotor;
- said high BH.sub.max permanent magnet having a duplex structure composed of an inner layer of Co--Fe--Y and an outer layer of Fe--Nd--B.
Dependencies are inferred from the claim text.