CONTACTLESS ELECTRIC MACHINE OF DIRECT CURRENT Russian patent published in 2008 - IPC H02K31/00 H02K25/00 

FIELD: electricity.

SUBSTANCE: contactless generator of direct current contains an anchor with a print winding and a rotor, divided by dual air-gap clearances. Adjoining with the external edge to the internal wall of the cylindrical and magnetic case in its middle part the anchor is executed fixed in the form of a circular ring, whose print winding is located on the upper and lower sectors. The rotor is executed in the form of the toroidal solenoid divided along its diameter in two halves, which are electromagnets of excitation. Their opposite poles will be maintain at small distances from each other for the free passage between them of the active wires of armature coils densely clamped between two bars of the shaft. It is general and for the rotor of the special activator with a fixed stator, the armature coil which is electrically connected to the coils of two halves of the toroidal solenoid. The magnetic field of the toroidal solenoids with an electric current exists only inside their bodies and in the clearances between the magnetic poles of their halves. And in their nearest surroundings it is absent Polarity of magnetic poles of half of the toroidal solenoids varies when they are outside the zone of the active parts of the armature coils.

EFFECT: simplification in the design; increase in the reliability and the disuse of semi-conductor devices

2 dwg