To provide an electric motor with a worm speed reducer which achieves further downsizing, and to provide an electric power steering device.SOLUTION: An electric motor with a worm speed reducer includes: a first housing which houses a worm wheel; and a second housing which houses a worm shaft. The worm shaft includes: rotors located at one end and the other end as seen in a second direction relative to a shaft tooth part and each having a recessed part which is open toward the second direction; bearings respectively housed in the recessed parts of the rotors; and pins each including a body fitted in an inner periphery of the bearing and a protruding part protruding from the body in the second direction. The second housing is provided with slits in each of which the protruding part of the pin is fitted.SELECTED DRAWING: Figure 6

    【課題】より小型化されたウォーム減速機付き電動機および電動パワーステアリング装置を提供すること。【解決手段】ウォーム減速機付き電動機は、ウォームホイールを収容する第1ハウジングと、ウォームシャフトを収容する第2ハウジングと、を備える。ウォームシャフトは、シャフト歯部に対して第2方向の一方側の端部および他方側の端部に位置し、且つ、第2方向に向けて開口する凹部を有するロータと、ロータの凹部に収容される軸受と、軸受の内周に嵌合される本体部と、本体部から第2方向に突出する突出部とを含むピンと、を備える。第2ハウジングには、ピンの突出部が嵌合するスリットが設けられる。【選択図】図6


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    Title :

    ELECTRIC MOTOR WITH WORM SPEED REDUCER AND ELECTRIC POWER STEERING DEVICE


    Additional title:

    ウォーム減速機付き電動機および電動パワーステアリング装置


    Contributors:

    Publication date :

    2023-03-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B62D MOTOR VEHICLES , Motorfahrzeuge



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