To provide a novel electric driving device which reduces an external appearance shape, reduces a weight and the number of components and has an excellent heat dissipation property and an electric power steering device.SOLUTION: An electric driving device comprises: a motor-housing-side annular engage part 35 which is formed on an outer peripheral surface of an end face part 15 of an aluminum-based metallic motor housing 11 at an opposite side of an output part of a rotary shaft of an electric motor and of which the diameter is reduced radially insides; and a metal-cover-side annular engage part 37 formed in an opening end of a metal cover 12 which covers an electronic control part for controlling the electronic motor, and engaged to a diameter-reduced portion in the motor-housing-side annular engage part. In a state where the metal-cover-side annular engage part 37 is engaged to the motor-housing-side annular engage part 35, the motor-housing-side annular engage part 35 and the metal-cover-side annular engage part 37 are fixed by an adhesive tape 39 in such a manner that engage portions on the outer peripheral surfaces thereof are covered.SELECTED DRAWING: Figure 11
【課題】、外観形状を小さくし、また重量及び部品点数を低減すると共に、良好な放熱特性を備えた新規な電動駆動装置及び電動パワーステアリング装置を提供することにある。【解決手段】電動モータの回転軸の出力部とは反対側のアルミ系金属製のモータハウジング11の端面部15の外周面に形成された径方向内側に縮径するモータハウジング側環状係合部35と、電動モータを制御する電子制御部を覆う金属カバー12の開口端に形成され、モータハウジング側環状係合部の縮径された部分に係合する金属カバー側環状係合部37とを備え、モータハウジング側環状係合部35に金属カバー側環状係合部37を係合した状態で、モータハウジング側環状係合部35と金属カバー側環状係合部37の外周面の係合部分を覆うように粘着性テープ39で固定する。【選択図】図11
ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE
電動駆動装置及び電動パワーステアリング装置
07.02.2019
Patent
Elektronische Ressource
Japanisch
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