The invention relates to an integrated reducing mechanism power assembly of an electric steering column, which comprises an external reducing mechanism shell, and a worm wheel shaft assembly is mounted on the right side in the reducing mechanism power assembly and is meshed with a worm shaft assembly on the left side; an upper bearing, a middle bearing and a lower bearing are fixed to the upper portion, the middle portion and the lower portion of the worm shaft assembly respectively, the lower half portion of the worm shaft is meshed with the worm gear to input torque, the upper half portion of the worm shaft is provided with a motor rotor assembly, and the motor rotor assembly and a stator assembly fixed to the inner wall of the speed reduction mechanism shell form a motor assembly to provide assistance. And a base is assembled at the tail part of the motor at the upper end, a PCBA for controlling the operation of the motor is assembled on the base, and the outside is sealed by an end cover to form an integrated speed reducing mechanism power assembly. The power-assisted motor and the speed reducing mechanism of the electric steering column are highly integrated, so that the number of parts is effectively reduced, and the cost is reduced; and the axial length of the motor is obviously shortened, so that the arrangement and the light weight of the whole vehicle are facilitated, and the positive significance is realized on the interior design and the endurance mileage improvement in the automobile industry.
本发明涉及一种电动转向管柱集成式减速机构动力总成,包括外部的减速机构壳体,所述减速机构动力总成的内部右侧安装有蜗轮轴总成,与左侧的蜗杆轴总成相啮合;所述蜗杆轴总成的上、中、下分别固定有上部轴承、中部轴承、下部轴承,蜗杆轴下半部分与蜗轮啮合输入力矩,上半部分装配电机转子总成,与固定在减速机构壳体内壁上的定子总成,组成一个电机总成提供助力;上端电机尾部装配底座,在底座上装配控制电机运转的PCBA,外部再用端盖密封,组成一个集成式的减速机构动力总成。本发明将电动转向管柱助力电机与减速机构高度集成,有效减少了零件数量,降低成本;且电机轴线向长度明显缩短,更利于整车布置和整车轻量化,对汽车行业内饰设计及续航里程提高都有积极意义。
Integrated reducing mechanism power assembly of electric steering column
一种电动转向管柱集成式减速机构动力总成
2025-04-25
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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