The present invention relates to an electric seat drive device in which a nut shaft coupled to a lever shaft and a rotor shaft are coupled by a D-cut structure, thereby preventing a slip phenomenon occurring between the nut shaft and the rotor shaft and improving the coupling force between the shafts. A power seat drive device for linearly reciprocating a power seat along a rod, the power seat drive device comprising: a housing having a housing having a circular hollow portion in which both end portions thereof are open, and a first cover portion and a second cover portion in which the first cover portion and the second cover portion are open; the first cover part and the second cover part are detachably combined with two end parts of the shell; the first bearing and the second bearing are arranged on the inner sides of the first cover part and the second cover part; a nut shaft having an outer periphery of one end rotatably supported by the first bearing and an inner peripheral portion coupled to the lever shaft; a hollow rotor shaft, one end of which is press-fitted and coupled to the outer periphery of the nut shaft, and the other end of which is rotatably supported by the second bearing; a rotor in which a plurality of N-pole and S-pole magnets are alternately provided on the outer periphery of the rotor shaft; and a stator which is built in the housing and in which a coil is wound around a stator core, the nut shaft and the rotor shaft forming a rotation axis of the rotor, in which a press-fit portion forms a D-shaped cut combination for preventing sliding.

    本发明涉及如下的电动座椅驱动装置,在与杆轴结合的螺母轴与转子轴之间利用D形切口(D‑cut)结构来结合,从而防止螺母轴与转子轴之间发生的滑动(slip)现象并提高轴之间的结合力。本发明的电动座椅驱动装置用于使电动座椅沿着杆进行直线往复移动,上述电动座椅驱动装置包括:外罩,具有壳体以及第一盖部及第二盖部,上述壳体的两端部呈开放状态且具有圆形的中空部,上述第一盖部及第二盖部以能够拆装的方式结合在上述壳体的两端部;第一轴承及第二轴承,设置在上述第一盖部及第二盖部的内侧;螺母轴,一端的外周以能够旋转的方式被上述第一轴承支撑,内周部与上述杆轴结合;中空型转子轴,一端被压入结合在上述螺母轴的外周,另一端以能够旋转的方式被上述第二轴承支撑;转子,多个N极及S极磁体交替设置在上述转子轴的外周部;以及定子,内置在上述壳体,线圈缠绕在定子铁芯,上述螺母轴和转子轴形成上述转子的旋转轴,其中压入结合的部分形成用于防止滑动的D形切口结合。


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    Title :

    Electric seat driving device


    Additional title:

    电动座椅驱动装置


    Contributors:

    Publication date :

    2024-07-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



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