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Direct drive hub motor for electric vehicle

A hub motor and electric vehicle technology, applied in the field of electric vehicles, can solve the problems affecting the service life of permanent magnets of permanent magnet motors, the unreasonable strength of cooling system and motor rotor shaft, etc., and achieve easy heat dissipation, high motor power and small internal resistance Effect

Active Publication Date: 2018-03-27
SHANDONG TANGJUN OULING AUTOMOBILE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent No. 201310220075.6 proposes a wheel drive motor for forklifts. Its main disadvantage is that the cooling system and the strength of the motor rotor shaft are unreasonable. The temperature and vibration of the motor will seriously affect the service life of the permanent magnet of the permanent magnet motor.

Method used

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  • Direct drive hub motor for electric vehicle
  • Direct drive hub motor for electric vehicle
  • Direct drive hub motor for electric vehicle

Examples

Experimental program
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Embodiment Construction

[0022] figure 1 It is a vertical sectional view of the direct drive wheel hub motor of the electric vehicle of the present invention. Among them, 1 hub, 2 stator cores, 3 excitation windings, 4 armature windings, 5 rotor cores, 6 shafts, and 7 bearings; electric vehicle direct drive hub motors are characterized in that: the hub is installed on the shaft through the bearing and can be wound around the shaft Rotation, the rotor core is fixed on the inner side of the circumference of the hub, and there are 9 rotor teeth extending toward the axis on the rotor core.

[0023] The stator core is fixed in the middle of the shaft. The stator core is composed of 4 evenly distributed "匚"-shaped stator cores. The yoke in the middle of the stator core is parallel to the axis; each stator core has three stator teeth at both ends. The sides of the teeth are fan-shaped; all the stator teeth are equally spaced and located on both sides of the rotor core in the axial direction; the stator core...

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Abstract

The invention discloses a direct drive hub motor for an electric vehicle, which belongs to the technical field of electric vehicles. The direct drive hub motor for the electric vehicle comprises a shaft, a hub, excitation windings, armature windings, a rotor iron core, a stator iron core and a bearing, wherein nine rotor teeth extending toward the axis are arranged on the rotor iron core; the stator iron core is formed by four uniformly-distributed [-shaped sub stator iron cores; each of two ends of each sub stator iron core is provided with three stator teeth; all stator teeth are equidistantand are axially located at two sides of the rotor iron core; the excitation winding is wound around the yoke part of one sub stator iron core; and each stator tooth is wound with a concentrated armature winding. Integrated design between the hub and the drive motor can be effectively realized, the winding is cooled easily, the advantages of concentrated excitation are executed thoroughly, and a high application value is realized in the electric vehicle.

Description

technical field [0001] The invention relates to a direct drive wheel hub motor of an electric vehicle and belongs to the technical field of electric vehicles. Background technique [0002] Electric vehicles are vehicle assemblies driven by electricity. Compared with vehicles powered by fuel engines, electric vehicles have the advantages of low energy consumption and low pollution. Electric vehicles are usually driven by hub motors, and the performance of hub motors determines The normal driving and climbing performance of electric vehicles. The biggest feature of the hub motor is that the power, transmission and braking devices are integrated into the hub, which greatly simplifies the mechanical part of the vehicle, reduces the weight of the electric vehicle, and makes the design of the electric vehicle easier to achieve modularization and personalization. [0003] The patent application number is 201310360010.1: electric vehicle direct drive hub motor and its electric vehi...

Claims

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Application Information

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IPC IPC(8): H02K21/24H02K1/22H02K1/14H02K3/04
CPCH02K1/148H02K1/22H02K3/04H02K21/24Y02T10/64
Inventor 史立伟韩震于成龙张学义孙统尹延斌
Owner SHANDONG TANGJUN OULING AUTOMOBILE MFG
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