Electromagnetic motor or generator comprising a rotor with magnetized structures comprising individual magnets and a stator with concentric windings

1. An electromagnetic motor or generator comprising:

at least one rotor ( 3 ) and at least one stator ( 1 , 2 ),

said at least one rotor ( 3 ) comprising permanent magnets ( 12 ) in rotation around a median shaft, and

said at least one stator ( 1 , 2 ) comprising windings ( 5 ),

characterized in that said at least one rotor ( 3 ) comprises magnet structures ( 12 ) forming magnet poles, each magnet structure ( 12 ) being composed of a plurality of individual magnets ( 15 ), whereby covering discs ( 17 ) are located axially on each of the two opposite axial faces of said at least one rotor ( 3 ), the covering discs ( 17 ) being made of a composite material, the covering discs ( 17 ) and the magnet structures ( 12 ) being coated in an outer coating layer of composite material defining the outer contour of said at least one rotor ( 3 ), and in that the at least one stator ( 1 , 2 ) comprises concentric windings ( 5 ) comprising a series of blocks ( 4 ) with the windings ( 5 ) wound around each block ( 4 ), the blocks ( 4 ) being rigidly attached to each other;

wherein the magnet structures ( 12 ) are individually coated in an internal composite layer in which the magnet structures ( 12 ) are arranged directly adjacent to one another concentric to the median shaft of the at least one rotor ( 3 ), or the magnet structures ( 12 ) are oriented concentric to the median shaft leaving a space between them filled by portions of the outer coating layer; and

wherein the outer coating layer and the covering discs ( 17 ) are fiber-reinforced.

2. The motor or generator as recited in claim 1 , in which each magnet structure ( 12 ) forming a magnetic pole advantageously comprises more than twenty individual magnets ( 15 ), the individual magnets ( 15 ) being connected by a resin ( 16 ) that separates them or are each inserted in a respective housing delimited by one of the mesh elements of a mesh.

3. The motor or generator of claim 2 , in which the fibers of the outer coating layer and the fibers of the covering discs ( 17 ) are oriented in different directions.

4. The motor or generator of claim 1 , in which the binding band ( 13 ) is part of an armature ( 18 ) made of composite material comprising a hub ( 19 ) concentric to the median shaft, branches ( 14 ) that extend between the hub ( 19 ) and the band ( 13 ), each branch ( 14 ) separating two adjacent magnet structures ( 12 ).

5. The motor or generator of claim 1 in which the blocks ( 4 ) or the at least one stator ( 1 , 2 ) are made of iron.

6. The motor or generator of claim 5 , in which the blocks ( 4 ) each have first and second quadrangular surfaces ( 8 ) joined by a thickness ( 11 , 11 ′), the first quadrangular surfaces ( 8 ) of the blocks ( 4 ) on one hand and the second quadrangular surfaces of the blocks ( 4 ) on the other hand being aligned in a respective radial plane in the assembled position of the at least one stator ( 1 , 2 ) in the motor or generator, the windings ( 5 ) being wound around the thickness ( 11 , 11 ′).

7. The motor or generator of claim 6 in which the first quadrangular surfaces ( 8 ) on one hand and the second quadrangular surfaces on the other hand are placed respectively end to end, the blocks ( 4 ) forming a ring concentric to the median shaft.

8. The motor or generator of claim 5 , in which a notch ( 10 ) extending in a radial plane surrounds the thickness ( 11 , 11 ′) of each block ( 4 ) for the housing of the windings ( 5 ) around the block ( 4 ).

9. The motor or generator of claim 5 , in which each block ( 4 ) is composed of a stack of metal sheets.

10. The motor or generator of claim 5 , in which each block ( 4 ) has a median internal screw thread ( 7 ) running through it, a removable fastening means fastening each block ( 4 ) individually to a support ring applied against the blocks ( 4 ) or each block ( 4 ) is rigidly connected by permanent or removable fastening means to the two blocks ( 4 ) that are adjacent to it.

11. The motor or generator of claim 1 , which includes at least one rotor ( 3 ) surrounded by two stators ( 1 , 2 ), the two stators ( 1 , 2 ) enclosing the at least one rotor ( 3 ) between them.

12. The motor or generator of claim 11 which is an axial flux motor or generator.

13. An electromagnetic motor or generator comprising:

at least one rotor ( 3 ) and at least one stator ( 1 , 2 ),

said at least one rotor ( 3 ) comprising permanent magnets ( 12 ) in rotation around a median shaft, and

said at least one stator ( 1 , 2 ) comprising windings ( 5 ),

characterized in that said at least one rotor ( 3 ) comprises magnet structures ( 12 ) forming magnet poles, each magnet structure ( 12 ) being composed of a plurality of individual magnets ( 15 ), whereby covering discs ( 17 ) are located axially on each of the two opposite axial faces of said at least one rotor ( 3 ), the covering discs ( 17 ) being made of a composite material, the covering discs ( 17 ) and the magnet structures ( 12 ) being coated in an outer coating layer of composite material defining the outer contour of said at least one rotor ( 3 ), and in that the at least one stator ( 1 , 2 ) comprises concentric windings ( 5 ) comprising a series of blocks ( 4 ) with the windings ( 5 ) wound around each block ( 4 ), the blocks ( 4 ) being rigidly attached to each other;

wherein a binding band ( 13 ) made of composite material circumferentially surrounds the magnet structures ( 12 ) on an outer periphery of the at least one rotor ( 3 ), the outer coating layer also coating the band ( 13 ).