To provide an electric actuator that is used in an electric braking device of a vehicle, whose dimensions in a radial direction and in an axial direction can be reduced and whose size can be reduced.SOLUTION: An electric actuator DN comprises: an input member BI that is rotationally driven by an electric motor MT and has a first baffle part Ma at an inner periphery part Mn; an output member BO having, at an outer periphery part Mg, a second baffle part Mb that can engage with the first baffle part Ma and a first screw part Na; and a direct-acting member BH having a second screw part Nb that can engage with the first screw part Na. At the outer periphery part Mg of the output member BO are formed both a screw mechanism and a baffle mechanism. This can reduce dimensions in a radial direction and in an axial direction of the electric actuator DN.SELECTED DRAWING: Figure 2
【課題】車両の電動制動装置に用いられる電動アクチュエータにおいて、径方向、及び、軸方向の寸法が短縮され、装置が小型化され得るものを提供する。【解決手段】電動アクチュエータDNは、「電気モータMTによって回転駆動され、内周部Mnに第1回り止め部Maを有する入力部材BI」と、「外周部Mgに、前記第1回り止め部Maにかみ合い可能な第2回り止め部Mb、及び、第1ねじ部Naを有する出力部材BO」と、「前記第1ねじ部Naにかみ合い可能な第2ねじ部Nbを有する直動部材BH」と、を備える。出力部材BOの外周部Mgに、ねじ機構と回り止め機構との両方が形成される。このため、電動アクチュエータDNにおいて、径方向、及び、軸方向の寸法が短縮される。【選択図】図2
ELECTRIC ACTUATOR AND ELECTRIC BRAKING DEVICE OF VEHICLE USING ELECTRIC ACTUATOR
電動アクチュエータ、及び、該電動アクチュエータを用いた車両の電動制動装置
2022-01-13
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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