Abstract: An electric driving apparatus includes: a housing; an electric machine comprising a motor shaft rotatably supported by the housing; a speed shifting unit for reducing a rotation speed of a rotational driving force of the motor shaft; and a double clutch unit configured to selectively rotationally drive a pair of output shafts by receiving rotational driving force of the speed shifting unit. The speed shifting unit includes: an input gear receiving the rotational driving force of the motor shaft; a speed shifting shaft rotatably supported by the housing; an output gear provided on the speed shifting shaft to rotate together with the speed shifting shaft; and a clutch unit operative to selectively achieve a rotationally constrained engagement between the input gear and the speed shifting shaft.

Abstract: An electric driving apparatus according to an embodiment of the present invention includes: a housing; an electric machine comprising a motor shaft rotatably supported by the housing; a first speed reduction portion comprising a first speed shifting shaft capable of being rotationally driven by the motor shaft and configured to shift and transmit a rotational driving force of the motor shaft at a predetermined first speed shifting ratio; a second speed reduction portion comprising a second speed shifting shaft capable of being rotationally driven by the motor shaft and configured to shift and transmit the rotational driving force of the motor shaft at a predetermined second speed shifting ratio; and a double clutch unit configured to receive the rotational driving force of the first speed shifting shaft or the second speed shifting shaft and is configured to selectively rotationally drive at least one of a first output shaft and a second output shaft by the transmitted rotational driving force.

Abstract: A blender includes a blade assembly including a main blade shaft that is coupled to a first blade and a first main coupler so as to rotate in a forward direction and a reverse-rotation blade shaft that is coupled to a second blade and a first reverse-rotation coupler so as to rotate in a reverse direction, a gearbox assembly including a main gear shaft coupled to a second main coupler, which is engaged with the first main coupler, so as to rotate in the forward direction, a plurality of gears configured to convert the forward rotation of the main gear shaft to reverse rotation, and a second reverse-rotation coupler configured to transmit the reverse rotation transmitted through the plurality of gears to the first reverse-rotation coupler, and a case that has the gearbox assembly provided therein.

Abstract: A blender having bi-directionally rotatable blades includes: a blade assembly including a main blade shaft that is provided to allow a first blade and a first main coupler to integrally rotate in a forward direction and a reverse-rotation blade shaft that is provided to allow a second blade and a first reverse-rotation coupler to integrally rotate in a reverse direction; and a gearbox assembly including a main gear shaft that is provided to allow a second main coupler and a main gear to rotate in the forward direction, at least one sub-gear that is engaged with the main gear and rotates in the reverse direction, a ring gear to which the sub-gear is internal and engaged, and a second reverse-rotation coupler that is configured to integrally rotate with the ring gear in the reverse direction and transmit the reverse rotation to the first reverse-rotation coupler.

Abstract: A blender includes a blade assembly including a main blade shaft that is coupled to a first blade and a first main coupler so as to rotate in a forward direction and a reverse-rotation blade shaft that is coupled to a second blade and a first reverse-rotation coupler so as to rotate in a reverse direction, a gearbox assembly including a main gear shaft coupled to a second main coupler, which is engaged with the first main coupler, so as to rotate in the forward direction, a plurality of gears configured to convert the forward rotation of the main gear shaft to reverse rotation, and a second reverse-rotation coupler configured to transmit the reverse rotation transmitted through the plurality of gears to the first reverse-rotation coupler, and a case that has the gearbox assembly provided therein.