Alternator and corresponding electric system
View Patent ↗An alternator including a rotatably-assembled permanent magnet, the magnetization direction of the magnet being orthogonal to the rotation axis, and a winding with no iron core surrounding the magnet and having each turn in a plane substantially parallel to a plane containing the rotation axis, the winding extending across a dihedral angle from the rotation axis smaller than 75 degrees and, radially, over a distance ranging between one quarter and half of the magnet diameter.
1. An alternator comprising:
a rotatably-assembled permanent magnet, the magnetization direction of the magnet being orthogonal to the rotation axis, and
a winding with no iron core surrounding the magnet and having each turn in a plane substantially parallel to a plane containing the rotation axis, the winding extending across a dihedral angle from the rotation axis smaller than 75 degrees and, radially, over a distance ranging between one quarter and half of the magnet diameter from a circumference of the magnet.
2. The alternator of claim 1 , comprising several sets of coils angularly shifted with respect to one another to provide a polyphase power supply.
3. The alternator of claim 1 , comprising three sets of coils arranged at a 60-degree angle away from one another to provide a three-phase power supply.
4. The alternator of claim 1 , wherein the magnet is cylindrical.
5. An electric regulation system comprising the alternator of claim 1 , connected to a lighting device.
6. An electric regulation system comprising the alternator of claim 1 , connected to a battery.