Electric drive unit

摘要

An electric drive unit (100) of the invention includes the electric motor (1) and the control apparatus (20) that is disposed on an axis line of a rotation shaft (2) of the electric motor (1) and controls the driving of the electric motor (1). The electric motor (1) has a motor terminal (13) extending parallel to an axial direction of the rotation shaft (2) toward the control apparatus (20) and a slit (13a) is provided to the motor terminal (13) at an end on a side of the control apparatus (20). The control apparatus (20) has a motor connection terminal (34) provided on a line extended from the motor terminal (13) and connected to the motor terminal (13). The slit (13a) in the motor terminal (13) is press-fit and fixed to the motor connection terminal (34).

主权项

1. An electric drive unit having an electric motor and a control apparatus that is disposed on an axis line of a rotation shaft of the electric motor and controls driving of the electric motor, wherein the control apparatus comprising:
a drive portion that drives the electric motor and is formed of semiconductor switching elements switching a current of the electric motor and passive elements electrically connected to the switching elements, and a frame having a plurality of conductive plates configured to be connected to respective terminals of the passive elements, the conductive plates are insert-molded with insulating resin, wherein one of the electric motor and the control apparatus has a first terminal extending parallel to an axial direction of the rotation shaft toward the other with a slit being provided to the first terminal at an end on a side of the other; the other has a second terminal provided on a line extended from the first terminal and electrically connected to the first terminal; and the first terminal is fixed in a state of being press-fit to the second terminal by allowing the slit to sandwich the second terminal, wherein the first terminal is made of copper alloy having higher heat-resistant creep characteristics than the second terminal.