Electric drive unit
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorWerner Verdoorn
Life of this patent
Estimating the term…
Abstract
An electrical drive unit (2) for use in a motor vehicle, has a stator (4) for generating a magnetic field with a stator core and a plurality of stator windings, a rotor (6) for generating a torque based on an interaction with the magnetic field generated by the stator (4), a control unit (8) for controlling operation of the electric drive unit (2), power electronics (10) for power control and power supply of the electric drive unit (2). The stator (4) is connected electrically to the power electronics (10) and encapsulated to form a common stator power electronics unit (2′).
Claims19
An electric drive unit (2) for use in a motor vehicle, comprising:
- a stator (4) for generating a magnetic field, the stator having a stator core and stator windings;
- a rotor (6) for generating a torque based on an interaction with the magnetic field generated by the stator (4);
- a housing (18) defining a hollow interior space in which the stator (4) is arranged and a cooling channel (14) through which a cooling fluid flows for cooling the stator (4);
- a control unit (8) for controlling operation of the electric drive unit (2);
- and
- power electronics (10) for power control and power supply of the electric drive unit (2), wherein the power electronics (10) are also arranged within the hollow interior space and are in direct fluid communication with the cooling channel (14) and the cooling fluid,
- wherein the stator (4) is connected electrically to the power electronics (10).
A method for manufacturing an electric drive unit (2) for use in a motor vehicle, the electric drive unit (2) having a rotor (6), a stator (4), a control unit (8) and power electronics (10), the method comprising:
- arranging (100) within a hollow interior space of a housing (18) (i) the stator (4) having cooling channel (14) through which a cooling fluid flows for cooling the stator (4) and (ii) the power electronics (10) that are in direct fluid communication with the cooling channel (14) and the cooling fluid;
- establishing (200) an electrical connection between the power electronics (10) and the stator (4);
- and
- encapsulating (300) the stator (4) and the power electronics (10) together in a mold to form an encapsulated unit.
Dependencies are inferred from the claim text.