Rotor for an electric external rotor motor and external rotor motor

摘要

Disclosed is a rotor (1) for an electric rotor motor, consisting of a rotor bell (2) with a peripheral wall (4) and at least one one-sided rotor base (6) to enclose a stator, in particular as a part of a motor housing with a high IP rating, for example IP54 per DIN/IEC-EN 60034-5. The rotor bell (2) features a heat sink (12) with high heat conductivity that extends through the rotor base (6) in such a way that the motor heat arising on the inside can be removed via the heat sink (12) through the rotor base (6) to the outside into the environment. Further, the invention relates to an electric rotor motor, in particular with an encapsulated motor housing with a high IP-protection system, for example IP54 per DIN/IEC-EN 60034-5, consisting of a stator and a rotor (1) enclosing the stator in an embodiment of the above-described type.

主权项

1. A rotor for an electric external rotor motor, comprising:
at least one one-sided rotor base for encompassing a stator, the rotor base being part of a motor housing, and a rotor bell with a peripheral wall, the rotor bell including a heat sink extending through the rotor base, the heat sink being configured to lead motor heat produced inside the motor housing via the heat sink through the rotor base to the outside of the housing, wherein the heat sink passes through openings of the rotor base, the heat sink having internal cooling blades projecting from the rotor base into the rotor bell on one side of the openings, and on the other side of the openings the heat sink having cooling ribs extending to the outside of the motor housing.