A method and device for testing the aerodynamic performance of a micro fan based on the flow compensation method

Abstract

The invention discloses a method and device for testing the aerodynamic performance of a micro-fan based on a flow compensation method, which includes a plurality of measuring pipes, each of which is equipped with a laminar flow element, and each measuring pipe can be connected separately or combined Turn on to get the desired flow point. The flow compensation unit contains the corresponding piping and laminar flow elements in the flow measurement unit. Each flow measurement pipeline is connected with the flow compensation pipeline through a three-way ball valve, and the other outlet of the three-way ball valve is connected to the collection container. When working, the regulating valve is fixed at a certain opening and remains unchanged, and the three-way ball valve is used to control the connection and closure of each measuring pipeline to change the test flow. The three-way ball valve is either connected to the measurement pipeline or the compensation pipeline. The flow of the two pipelines is complementary, and the working condition of the auxiliary fan is almost unchanged. This adjustment method can obtain a relatively accurate flow point, and the device has high test efficiency and measurement The data is accurate and suitable for testing the aerodynamic performance of small flow fans.

Description

technical field [0001] The invention relates to the field of fan performance testing, in particular to a method and device for testing the aerodynamic performance of a miniature fan based on a flow compensation method. Background technique [0002] With the miniaturization of electronic equipment, the fan in the heat dissipation system also has the requirement of miniaturization and miniaturization, and the air volume and air pressure parameters of the micro fan are smaller and lower. At the same time, the existing fan aerodynamic performance testing technology and devices need to be improved and updated to meet the needs of fan production and use. [0003] In the field of fan aerodynamic performance testing, the more commonly used standard is the American National Standards Organization Ventilation and Air Conditioning Association's "Fan Rated Performance Test Laboratory Method" - ANSI / AMCA210 / ASHRAE51-2007. The Chinese standard GB / T1236-2000 "Industrial Ventilator Perform...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of micro-flow measurement and flow automatic adjustment in the micro-fan aerodynamic performance testing system, the present invention provides a micro-fan aerodynamic performance testing method and device based on the flow compensation method. The specific technical scheme is as follows:

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