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Wheel motor for electric driven vehicle

A technology of wheel motors and electric vehicles, which is applied in the direction of electric components, electrical components, electromechanical devices, etc., and can solve problems such as small torque, polluting the environment, and complex structures

Inactive Publication Date: 2004-06-09
张东辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most vehicles are powered by internal combustion engines, but internal combustion engines have harmful exhaust emissions and pollute the environment. The zero exhaust emissions of electric vehicles make them an important means of transportation in the future
However, the motors used in electric vehicles have high speed but small torque, and cannot directly drive the wheels. The structure becomes complicated after the deceleration and transmission mechanism is adopted, the volume and weight increase, the efficiency decreases, and the economy is poor, which restricts the development of electric vehicles.

Method used

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  • Wheel motor for electric driven vehicle
  • Wheel motor for electric driven vehicle
  • Wheel motor for electric driven vehicle

Examples

Experimental program
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Embodiment Construction

[0008] Such as figure 2 As shown, the inner wall of the outer circumference of the outer rotor (3) of the cylindrical DC motor is uniformly fixed with tangentially placed strip permanent magnets (4) and radially placed strip permanent magnets (5), which are arranged alternately to form an opening The inward tooth-shaped structure, the adjacent permanent magnets are placed in the same magnetic pole pair, so that a strong radial magnetic field is formed at the opening, and the permanent magnets (4, 5) use high-strength permanent magnets (such as neodymium iron boron rare earth permanent magnets). Magnet), help to improve the efficiency and maximum starting torque of the motor. The width of the opening is an integer multiple of the thickness of the permanent magnet (5) placed radially (generally 4-10 times is appropriate, and 5 times is taken as an example in this example). The outer rotor (3) shell is made of steel, which can reduce magnetic flux leakage. The rotor outer cover (13)...

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Abstract

This invention provides a wheel motor for an electrocar including a large power large torsion cylindrical outer rotor DC motor and a wheel mounted on its shell bar magnets (4,5) are fixed on the internal wall of the periphery of the outer rotor tangentially and radially, same poles of the adjacent magnets are set aligned to form a radial strong magnetic field, the open-end of the cylindrical stator is towards the inside, multiple sets of coil windings are winded in parallel to the outer edge of the stator axially having a position transducer and a control circuit, the motor can generate electricity.

Description

Technical field [0001] The invention relates to the field of power technology and motor technology of electric vehicles. Background technique [0002] At present, most vehicles use internal combustion engines as power, but internal combustion engines have harmful exhaust emissions and pollute the environment. The zero exhaust emissions of electric vehicles make it an important means of transportation in the future. However, the motors used in electric vehicles have high speed but low torque, and cannot directly drive the wheels. The use of deceleration and transmission mechanisms makes the structure more complicated, increases the volume and weight, reduces efficiency, and is economical, which restricts the development of electric vehicles. Summary of the invention [0003] The object of the present invention is to provide a wheel motor for an electric vehicle, which includes a cylindrical outer rotor DC motor with high power and high torque and wheels mounted on the motor shell...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K7/14H02K29/06
Inventor 张东辉
Owner 张东辉
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