The invention provides an electric drive device and an electric power steering device which can be miniaturized in the axial direction and can suppress stress applied to a circuit board accompanying electrical connection between a motor and the circuit board even if a junction box is installed. The electric drive device includes a motor and an electronic control device that controls rotation of the motor. The electronic control device includes: a first circuit board; a first heat sink; a second heat sink that sandwiches the first circuit board between the first heat sink and the second heat sink; and a junction box fixed to a side surface of the second heat sink, the junction box electrically connecting the motor coil wiring and the first circuit board.
本发明提供能够在轴向上小型化并且即使安装接线盒也能够抑制与马达和电路基板的电连接相伴随的对电路基板施加的应力的电动驱动装置和电动助力转向装置。电动驱动装置具备马达和对马达的旋转进行控制的电子控制装置。电子控制装置包含:第1电路基板;第1散热器;第2散热器,在该第2散热器与第1散热器之间夹着第1电路基板;以及接线盒,其固定于第2散热器的侧面,该接线盒将马达线圈布线和第1电路基板电连接。
Electric drive device and electric power steering device
电动驱动装置和电动助力转向装置
2022-11-08
Patent
Elektronische Ressource
Chinesisch
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