Novel motor flow field observation device and method

Abstract

The invention discloses a novel motor flow field observation device and a method. A wind source is connected to a tracer particle injection area through a first wind path conversion tube; the tracer particle injection area is connected to a wind path interface of a test motor model through a second wind path conversion tube; the main structure of the test motor model is made of a light transmission material; a CCD high speed camera and a laser sheet light source are arranged on the sides of the test motor model and face to an internal flow field; the CCD high speed camera and the laser sheet light source are connected to a PIV special purpose computer; the laser is irradiated into the flow field with the tracer particle in the test motor model; and the distribution and moving state of the flow field are displayed through the tracer particle and is collected by the CCD high speed camera. The invention can be used for observing the cooling air flow field in the motor, can accurately simulate the working condition of the practical motor, guarantees the observation accuracy of the motor cooling flow field and observes the cooling air flow field in the microcosm in order to optimize the motor heat radiation structure.

Description

technical field [0001] The present invention relates to an observation device and method, in particular to a novel motor flow field observation device and method, which can be used for the observation of the cooling air flow field inside the motor. Observe the cooling air flow field to optimize the heat dissipation structure of the motor. Background technique [0002] In recent years, with the diversification of applications, high power density, high reliability and compactness of motor design have increasingly become the goals pursued by researchers. In the course of this development, people have to face the predicament that these three cannot balance. The key to limiting these three requirements is the temperature rise of the motor. Excessive motor temperature rise will cause a series of problems such as motor overheating, insulation failure, and permanent magnet failure. There are two main aspects to the control of temperature rise, one is the loss of the motor, and th...

AI Technical Summary

Problems solved by technology

At the same time, due to the complex structure of the cooling air channel in the motor, such as the rotor structure, stator and rotor windings, etc., are all parts that generate heat and require detailed cooling performance analysis, but their complex structure makes the flow of air flow in it more difficult. Uncertainty, turbulence and other complex fluid conditions are very prone to occur, making its research more difficult

Therefore, for the research on the cooling air flow field of the motor, it is difficult to achieve accurate calculation and can only be observed by certain methods.

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