Wound internal rotor of double mechanical port electric machine

Abstract

This invention relates to a winded inner rotor of a double-port motor, in which, a hollow cylinder is installed on the rotor shaft, cavity cylinder is outside of the shaft and the hollow cylinder set in the double-layer hollow shaft, the inner shaft hole coaxial with the shaft is the inner layer hollow structure of the rotor shaft, the outer blind hole outside of the inner layer hollow structure is the outer hollow structure of the rotor shaft, radial through holes towards the surface of the rotor shaft are set close to the blind end of the blind hole and the inner shaft hole to connect to its inner radial cooling fluid path composed of the outer surface of the cylinder and the inner surface of the core and two end covers of the rotor, the outer surface of the hollow cylinder and the inner surface of the cavity cylinder constitute an axial path of the cooling fluid and the rotor winding is a central one.

Description

technical field [0001] The invention relates to a double mechanical port motor rotor, in particular to a high-speed rotating double mechanical port motor winding type inner rotor. technical background [0002] The high emission and low efficiency of traditional internal combustion engine vehicles have become a worldwide concern in today's increasingly serious environmental pollution. In order to solve this problem, hybrid electric vehicles were born. In the power and transmission system of a traditional internal combustion engine vehicle, there are only an engine and a gearbox, and the output shaft of the engine and the drive shaft of the vehicle are coupled together through the gearbox. Therefore, the efficiency of the engine is affected by the driving conditions. In the power and transmission system of a hybrid electric vehicle, in addition to the engine and gearbox, a motor is introduced to adjust the working state of the engine and recover energy. Moreover, with the c...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the prior art that the heat dissipation effect of the inner rotor is not good and the end of the rotor winding is easily deformed under the action of centrifugal force, the present invention proposes a new inner rotor structure, which includes the cooling liquid axial passage inside the shaft , including the radial and axial coolant passages outside the shaft and the axial passage in the core, the radial passage and the axial passage form the coolant circulation passage

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