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Invention Grant
CN105322723B 驱动单元和包括驱动单元的电动助力转向装置 有权

驱动单元和包括驱动单元的电动助力转向装置
Abstract:
公开了一种驱动单元和包括驱动单元的电动助力转向装置。驱动单元包括旋转电机、框架构件和控制器。旋转电机(10，310)具有：定子(12，312)，在该定子上缠绕有绕组(13，14)；转子(15)，相对于定子布置；以及轴(16)，转子一起旋转。框架构件(20，320)布置在旋转电机的一个轴向端上。控制器(40，240，340)包括：基板(41，341)，附接在框架构件的背对旋转电机的一个表面上；发热元件(70，270)，布置在基板的发热元件安装表面(32，342)上，该发热元件安装表面面对框架构件；以及电子部件(86，87，89，271，272)，布置在基板的电子部件安装表面(43，343)上。
Abstract(English):

A drive unit includes a rotating electric machine, a frame member, and a controller. The rotating electric machine has a stator that has a winding wound on the stator, a rotor disposed relative to the stator, and a shaft rotating together with the rotor. The frame member is disposed on one axial end of the rotating electric machine. The controller includes a substrate attached on one surface of the frame member facing away from the rotating electric machine, a heat generation element disposed on a heat generation element mounting surface of the substrate, the heat generation element mounting surface facing the frame member, and an electronic component disposed on an electronic component mounting surface of the substrate.

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