Hub motor arrangement or vehicle with hub motor arrangement
AssigneeRazor USA LLC
InventorJoey Chih-Wei Huang
Life of this patent
Estimating the term…
Abstract
A ride-on vehicle, such as for a child, includes a vehicle body and one or more wheels that support the vehicle body relative to a surface. At least one of the wheels includes a hub motor arrangement that provides a drive torque for propelling the vehicle. The hub motor arrangement includes a housing defining an interior space. An axle or other mounting element(s) define an axis of rotation of the housing. Preferably, the axle or other mounting element(s) do not pass completely through the housing. A motor drives the housing through a transmission. Preferably, the motor is a standard, compact motor that is positioned on the axis of rotation and can be laterally offset from a central plane of the housing. In some embodiments, a traction element is carried directly by the housing.
Claims35
A hub motor arrangement, comprising:
- a housing portion defining an interior space and an axis of rotation;
- a first lateral support member;
- a second lateral support member spaced from the first lateral support member along the axis of rotation;
- a plurality of connecting shafts extending between the first lateral support member and the second lateral support member;
- a plurality of planet gears, each planet gear being a double spur gear supported on a respective one of the plurality of connecting shafts;
- a motor occupying a portion of the axis of rotation;
- a sun gear driven by the motor and that drives a first gear portion of each of the plurality of planet gears;
- and
- a ring gear driven by a second gear portion of each of the plurality of planet gears, wherein the ring gear drives the housing portion for rotation about the axis of rotation,
- wherein a number of the planet gears is less than a number of the connecting shafts.
A hub motor arrangement, comprising:
- a housing portion defining an interior space and an axis of rotation;
- a first lateral support member;
- a second lateral support member spaced from the first lateral support member along the axis of rotation;
- a plurality of connecting shafts extending between the first lateral support member and the second lateral support member;
- a plurality of planet gears, each planet gear being a double spur gear supported on a respective one of the plurality of connecting shafts;
- a motor occupying a portion of the axis of rotation;
- a sun gear driven by the motor and that drives a first gear portion of each of the plurality of planet gears;
- and
- a ring gear driven by a second gear portion of each of the plurality of planet gears, wherein the ring gear drives the housing portion for rotation about the axis of rotation, wherein the ring gear is integrated with the housing portion.
A hub motor arrangement, comprising:
- a housing portion defining an interior space and an axis of rotation;
- a first lateral support member;
- a second lateral support member spaced from the first lateral support member along the axis of rotation;
- a plurality of connecting shafts extending between the first lateral support member and the second lateral support member;
- a plurality of planet gears, each planet gear being a double spur gear supported on a respective one of the plurality of connecting shafts;
- a motor occupying a portion of the axis of rotation;
- a sun gear driven by the motor and that drives a first gear portion of each of the plurality of planet gears;
- and
- a ring gear driven by a second gear portion of each of the plurality of planet gears, wherein the ring gear drives the housing portion for rotation about the axis of rotation, wherein the plurality of connecting shafts define a circle having a diameter, and wherein the motor defines an outer peripheral surface that is located within the diameter.
Dependencies are inferred from the claim text.