Cooling structure for balancing internal wind pressure of machine base

Abstract

The invention relates to a motor ventilation cooling structure, in particular to a cooling structure for balancing the internal wind pressure of a machine base. The cooling structure solves a series of technical problems such as the large air volume near an air inlet, small air volume away from the air inlet, and even smaller air volume at a place under the motor due to the unreasonable layout ofmotor air passages. The cooling structure for balancing the internal wind pressure of the machine base comprises the machine base, an air inlet end cover and an air outlet end cover respectively mounted on the front and rear ends of the machine base, a stator arranged inside the machine base. The machine base has an air inlet at the top near the front end. The inner side of the air inlet end cap protrudes from a stator tooth portion to seal a rotor, and the sealing ring and the air inlet end cover form a V-shaped air passage structure. The cooling structure has the advantages of axial ventilating hole, optimized air volume and wind pressure, small occupied space, etc., and can be widely applied to the field of locomotive direct drive traction motor. Especially, in the case where the requirement of a vehicle bottom space is high and the user cannot provide a large wind pressure, the advantages of the cooling structure is significant.

Description

technical field [0001] The invention relates to a ventilation cooling structure for a motor, in particular to a cooling structure for balancing the wind pressure inside a machine base. Background technique [0002] With the continuous development of the industry, freight locomotives require continuous increase in power and torque, and the volume and weight of the car body are limited, resulting in a smaller installation space for equipment on the car body. This requires traction motors to have strong cooling and heat dissipation capabilities, small size, and low weight. light features. The punched sheet and the iron core made of the punched sheet are the magnetizer of the motor and the medium for electromechanical energy conversion. The quality of its structure directly affects the performance of the motor. In order to meet the volume, weight, ventilation and heat dissipation requirements of the traction motor, it is necessary to invent a new stator ventilation and cooling ...

AI Technical Summary

Problems solved by technology

[0010] In order to solve a series of technical problems such as the large air volume near the air inlet and the small air volume far away due to the unreasonable layout of the air passage of the motor, the present invention provides a cooling structure for balancing the internal air pressure of the machine base.

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