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Case fan module vibration performance testing device and method

A technology for fan modules and testing devices, which is applied in vibration testing, measuring devices, and testing of machine/structural components, etc., can solve problems such as the inability to know the proportion of factors affecting mechanical vibration and wind flow vibration, and the inability to meet testing requirements.

Active Publication Date: 2021-02-05
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the vibration test generally fixes the fan module to the case, and the case is tested under a fixed structure. It is impossible to know the proportion of the influencing factors of mechanical vibration and air flow vibration, which cannot meet the needs of further testing.

Method used

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  • Case fan module vibration performance testing device and method
  • Case fan module vibration performance testing device and method
  • Case fan module vibration performance testing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like Figure 1-3 As shown, this embodiment provides a device for testing the vibration performance of the chassis fan module. The upper cover of the chassis 1 is provided with a ventilation hole 8, and a rotating windshield 2 is arranged at the ventilation hole 8. The rotating windshield 2 can be rotated downward and can be rotated. Disassemble, rotate the windshield 2 and fix it with the upper cover of the cabinet 1 when it is in a horizontal state, cover the ventilation hole 8, and rotate the bottom end down to be in sealing contact with the bottom wall of the cabinet 1.

[0036] When testing, first make the rotating windshield 2 in a horizontal state, cover the ventilation hole 8, and carry out the hard disk vibration test. At this time, the hard disk 7 is affected by the mechanical vibration of the fan and the wind vibration, and the attenuation value of the hard disk is the mechanical vibration factor plus the wind flow. vibration factor. Then adjust the rotating ...

Embodiment 2

[0045] like Image 6 As shown, on the basis of Embodiment 1, this embodiment provides a method for testing the vibration performance of the fan module 12 of the chassis 1, including the following steps:

[0046]S1, make the rotating windshield 2 in a horizontal state and fix it on the upper cover of the chassis 1, cover the ventilation hole 8, perform a fan vibration test, and obtain the first hard disk attenuation value affected by the mechanical vibration factor and the wind vibration factor;

[0047] S2, rotate the rotating windshield 2 downwards so that its bottom end is in sealing contact with the bottom wall of the chassis 1, so that the ventilation hole 8 is opened, and the fan vibration test is performed to obtain the attenuation value of the second hard disk affected by mechanical vibration factors;

[0048] S3, subtracting the attenuation value of the second hard disk from the attenuation value of the first hard disk to obtain the attenuation value of the third hard ...

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Abstract

The invention discloses a case fan module vibration performance testing device and method. An upper cover of a case is provided with a vent hole, and a detachable rotary wind shield is arranged at thevent hole. The rotary wind shield is in a horizontal state and fixed on the upper cover of the case, the vent hole is shielded to perform fan vibration test, and a first hard disk attenuation value influenced by a mechanical vibration factor and an air flow vibration factor are obtained; the rotary wind shield rotates downwards to enable the bottom end of the rotary wind shield to be in sealed contact with the bottom wall of the case, the vent hole is opened, a fan vibration test is performed, and a second hard disk attenuation value influenced by a mechanical vibration factor is obtained; the second hard disk attenuation value is subtracted from the first hard disk attenuation value to obtain a third hard disk attenuation value influenced by the air flow vibration factor; and the proportion of the mechanical vibration factor and the air flow vibration factor is obtained through the second hard disk attenuation value and the third hard disk attenuation value. Analysis of the mechanical vibration performance and the air flow vibration performance is achieved, operation is easy and convenient, use is flexible, and important help is provided for improvement of fan vibration reductionoptimization design.

Description

technical field [0001] The invention relates to the field of vibration testing of fan modules, in particular to a device and method for testing the vibration performance of a chassis fan module. Background technique [0002] With the rapid development of electronic components, there are more and more electronic components with high density and high power consumption, and the heat generated inside the server has also increased significantly. At this time, high-speed fans are needed for heat dissipation. The higher the fan speed, the faster the airflow velocity, the greater the mechanical vibration caused by the fan and the airflow vibration caused by the flow field, and the greater the impact on the hard disk, the more obvious the fan vibration. Therefore, when the fan module is introduced, it is necessary to perform vibration performance testing and tuning to judge whether the vibration performance of the fan module is good or bad, so as to optimize and tune the fan module w...

Claims

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Application Information

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IPC IPC(8): G01M7/02
CPCG01M7/02Y02D10/00
Inventor 龚宝龙
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD