Series machine water-cooling structure

Abstract

The invention discloses a series motor water-cooling structure comprising a motor rotor, a stator, a commutator, and a cooling pipe. The cooing pipe is mainly composed of two mutually-communicated parts, namely, a part near the outer surface of the commutator and a part adhered to the outer surface of the stator. A water inlet and a water outlet of the cooling pipe are respectively disposed at the two sides of a motor shell. By adopting the device, the size of a fan is reduced, the air volume is reduced, the defect of motor air-cooling is overcome, a series motor can be cooled effectively, and a high-power series motor is made possible.

Description

technical field [0001] The invention relates to the technical field of motor cooling, in particular to a water cooling structure of a series motor. Background technique [0002] At present, the cooling structure of the motor is mainly an air-cooled structure, that is, a fan is installed at the front end of the rotor, and the fan rotates to generate airflow, which enters the motor through the air inlet on the casing, and the airflow passes through the air gap between the stator and the rotor, and then flows from the The air outlet at the lower end of the casing flows out and takes away the heat, thereby cooling the rotor with wind. The disadvantages of this structure are: [0003] First, the wind consumption is relatively large. [0004] Second, the heat on the surface of the rotor can only be taken away by the wind flow, and the cooling effect is poor. [0005] Third, the motor noise is louder, the bigger the fan, the bigger the air flow, and the better the cooling effect...

AI Technical Summary

Problems solved by technology

[0003] First, the large wind consumption

[0004] Second, the heat on the surface of the rotor can only be taken away by the wind flow, and the cooling effect is poor

However, it takes a certain amount of time for the cooling water to pass through the entire spiral channel, so the cooling effect is not ideal

And this simple spiral water channel is not suitable for series motors, because there are commutators and brushes on the top of series motors. Due to the existence of brushes, the cooling water pipe cannot be spirally coiled outside the steering gear, so it cannot be used for commutation. Inverter cooling, thereby affecting the cooling effect of the entire motor

It is precisely because of the lack of effective cooling methods that the power of the existing series motors is generally not large

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