Hub motor and electric vehicle
A hub motor and gear technology, which is applied in the field of hub motors and electric vehicles, can solve the problems of limited application range, large axial space of the deceleration mechanism, and large axial size of the hub motor, so as to reduce space requirements and axial dimensions , The effect of reducing the axial size
Pending Publication Date: 2022-04-01
GUANGDONG WELLING ELECTRIC MACHINE MFG +1
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Problems solved by technology
However, after the deceleration mechanism is added, the deceleration mechanism occupies more axial space, resulting in a larger axial dimension of the hub motor, which is only suitable for hub motors with a large axial dimension space, and the scope of use is limited.
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[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0034] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...
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The invention discloses a wheel hub motor and an electric vehicle, the wheel hub motor comprises a middle shaft, and a housing assembly, a stator assembly, a rotor assembly and a gear assembly which are connected to the middle shaft, the housing assembly is supported on the middle shaft through a first bearing, the rotor assembly is supported on the middle shaft through a second bearing, and the gear assembly is supported on the middle shaft through a third bearing. The rotor assembly is in transmission connection with the shell assembly through the gear assembly, a first containing groove is formed in the side face, facing the gear assembly, of the rotor assembly, and part of the gear assembly is arranged in the first containing groove. The rotor assembly of the hub motor drives the shell assembly to rotate through the gear assembly, the shell assembly and wheels of the electric vehicle are connected into a whole, and running of the electric vehicle is achieved. According to the hub motor, speed reduction and torque increase are achieved through the gear assembly, in the axial direction, the first containing groove of the rotor assembly is used for containing part of the gear assembly, the axial size of the hub motor is reduced, the space requirement of the hub motor is reduced, and the use range is expanded.
Description
technical field [0001] The invention relates to the technical field of motors, in particular to a hub motor and an electric vehicle. Background technique [0002] With the development of technology, the miniaturization and high power density of hub motors have become a development trend. The existing in-wheel motors generally have the disadvantages of large size and weight, and insufficient power density. In related technologies, electric vehicles use in-wheel motors to directly drive wheels, and some in-wheel motors have reduction mechanisms to reduce speed, increase torque and power density of the motor. However, after the deceleration mechanism is added, the deceleration mechanism occupies more axial space, resulting in a larger axial dimension of the hub motor, which is only suitable for hub motors with a large axial dimension space, and the scope of use is limited. Therefore, making full use of the space inside the motor and developing a geared hub motor with a small ...
Claims
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IPC IPC(8): H02K3/52H02K3/28H02K1/14H02K1/2786H02K1/2787H02K1/32H02K9/06B60K7/00B62M7/12B62M11/16
CPCY02T10/64
Inventor 徐锡锋刘海量何潇王洪晓
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG