Hub motor driving wheel provided with brake device

Abstract

The invention provides a hub motor driving wheel provided with a brake device. The hub motor driving wheel provided with brake device is characterized in that a rotor assembly comprises a middle shell, a base body, two inner-ring permanent magnets, two outer-ring permanent magnets, a left shell and a right shell; the left shell and the right shell are fixedly connected with the middle shell, and atire is installed on the outer wall of the middle shell; the two outer-ring permanent magnets and the two inner-ring permanent magnets are correspondingly fixed on the side walls that the middle shell is opposite to the base body; a left stator assembly comprises a first base, a base limiting ring and a spoke-shaped connecting piece, a right stator assembly comprises a second base and an annularconnecting disc, annular stator grooves which are concentric with a stator shaft are formed in the outer end of the connecting piece and the outer end of the connecting disc, the two stator grooves are located between the inner-ring permanent magnets and the outer-ring permanent magnets, the quantity of stator windings evenly distributed in the stator grooves is equal, and the stator windings areopposite in pairs; the brake device is of a caliper-disc structure, a brake disc is of an annular structure and is coaxially and fixedly connected with the right shell, and a brake caliper is fixedlyinstalled on the outer wall of the connecting disc and located in an annular ring of the brake disc.

Description

technical field [0001] The invention relates to a hub motor drive wheel provided with a braking device, belonging to the field of electric vehicles. Background technique [0002] With the increasing number of automobiles in China and the increasingly serious problems of energy security and environmental pollution, new energy vehicles have become one of the main directions of China's automobile technology development. In the past ten years, new energy vehicles have made significant contributions to energy conservation and emission reduction, and with the gradual maturity of key technologies of existing new energy vehicles and the further deterioration of environmental problems, people's requirements for energy conservation of new energy vehicles have also gradually increased. The evolution of state support policies can be seen. For example, in 2009, at the beginning of the new energy vehicle industrialization era, mild hybrid vehicles could receive state subsidies; in 2012, ...

AI Technical Summary

Problems solved by technology

[0005] The drive wheel of the hub motor directly integrates the power device into the wheel. At present, the braking device mostly adopts the traditional disc brake. Between the hub motor and the rim, in order to avoid motion interference between the braking device and the hub motor, the hub motor needs to avoid the braking device, which limits the volume of the braking hub motor, thereby limiting its driving ability; In the middle, the heat generated by braking will be blown to the hub motor with the airflow, which will increase the workload of the hub motor's own cooling system, and in severe cases, it will cause the hub motor to overheat and affect its normal operation

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