Rotor with reinforced squirrel-cage conductive body and manufacturing method thereof
A rotor including a cylindrical iron core having a through hole for receiving a rotational shaft, and a squirrel-cage conductive body including a plurality of conductive bars and a pair of annular conductive end rings provided at both ends of the plurality of conductive bars is provided. The conductive bars extend along a direction in which the rotational shaft is received and are arranged at an outer circumference of the iron core at certain intervals. The rotor further includes a conductive reinforcing layer extends on at least a part of an outer surface of the conductive end ring. The conductive reinforcing layer is formed by spraying conductive particles in a solid phase onto the outer surface of the conductive end ring.
1. A rotor comprising:
a cylindrical iron core having a through hole for receiving a rotational shaft; and
a squirrel-cage conductive body including a plurality of conductive bars and a pair of annular conductive end rings provided at both ends of the plurality of conductive bars, the conductive bars extending along a direction in which the rotational shaft is received and being arranged at an outer circumference of the iron core at certain intervals, wherein
a conductive reinforcing layer extends on at least a part of an outer surface of the conductive end ring, the conductive reinforcing layer being formed by spraying conductive particles in a solid phase onto the outer surface of the conductive end ring.
2. The rotor according to claim 1 , wherein the conductive reinforcing layer further extends on at least a part of an outer surface of the iron core.
3. The rotor according to claim 1 , wherein the conductive particles of the conductive reinforcing layer are made of a non-magnetic material.
4. The rotor according to claim 3 , wherein the non-magnetic material is stainless steel, titanium, or titanium alloy.
5. A manufacturing method for manufacturing a rotor, the rotor comprising: a cylindrical iron core having a through hole for receiving a rotational shaft; and a squirrel-cage conductive body including a plurality of conductive bars and a pair of annular conductive end rings provided at both ends of the plurality of conductive bars, the conductive bars extending along a direction in which the rotational shaft is received and being arranged at an outer circumference of the iron core at certain intervals, wherein
the method comprises:
spraying conductive particles in a solid phase onto at least a part of an outer surface of the conductive end ring so as to form a conductive reinforcing layer thereon.
6. The method according to claim 5 , further comprising spraying conductive particles in a solid phase onto at least a part of an outer surface of the iron core so as to further form a conductive reinforcing layer thereon.