WHEEL ELECTRIC MOTOR EQUIPPED WITH COOLING SYSTEM Russian patent published in 2022 - IPC H02K5/20 H02K9/19 H02K11/33 H02K1/20 H02K7/20 

FIELD: electrical engineering; engine building.

SUBSTANCE: wheeled motor (4) for a vehicle comprises stator (30) with an elongated connecting element (33) on the vehicle side, cylindrical hollow housing of stator connected to connecting element with central axis and on outer surface of stator housing, which is equipped with stator windings. Cylindrical housing (60) of the rotor coaxially surrounds the stator and rotates around the axis of rotation of the electric motor. Cooling jacket (37) is located along the perimeter of the cylindrical hollow housing of the stator and is made with possibility of cooling the stator windings. Power electronic device is placed in the hollow housing of the stator and is configured to supply the stator windings. Connecting element (33) is equipped with the first hole of supply (92) and the second hole of return (93) channels for liquid coolant. Each of the supply and return channels is substantially parallel to the axial direction of the connecting element. Electric motor comprises internal cooling circuit with supply (102) and return (103) connectors for liquid coolant. Supply connector is made with possibility of liquid-tight connection with first opening of supply channel, and the return connector is made with possibility of liquid-tight connection with the second opening of the return channel. Inner cooling circuit comprises coolant supply channel (45A–45E), which passes from supply connector (102) first through power electronic device (42) and then to cooling jacket (37), and from there to return connector (103). Supply connector (102) is arranged on inlet hole of coolant supply channel (45A) to power electronic device, and the return connector is placed on the outlet hole of the coolant supply channel from cooling jacket (37).

EFFECT: improvement of convenience of operation and improvement of cooling.

16 cl, 6 dwg