Damping material noise testing device for air conditioner outdoor unit

Abstract

The invention discloses a damping material noise testing device for an air conditioner outdoor unit, and relates to the field of damping material testing. The damping material noise testing device comprises a rack arranged in a semi-anechoic chamber, a push handle is installed on the side face of the rack, universal wheels are arranged at the bottom end of the rack, the air conditioner outdoor unit is placed on the rack, microphones are arranged on the periphery of the air conditioner outdoor unit, the microphones are electrically connected with a noise vibration test analysis system and provides a collected noise source for the noise vibration test analysis system, and the rack is provided with a position adjusting mechanism for changing the horizontal position of supporting feet of the air conditioner outdoor unit, the position of the sound source and the decibel are collected by arranging the microphones with the adjustable position on the periphery of the air conditioner outdoor unit, the noise vibration test analysis system compares and analyzes data differences of noise sources of the air conditioner outdoor unit in different operating environment operating modes and before and after a damping material is used, and a large amount of data are provided for performance research of a damping pad.

Description

technical field [0001] The invention relates to the field of vibration-damping material testing, in particular to a noise testing device for vibration-damping materials used in an air-conditioner external unit. Background technique [0002] What is the effect of the existing vibration damping pads for external air conditioners? Some companies have conducted market research and user feedback, but the reliability of the data obtained is not high and the feedback cycle is long, which is not conducive to the development of vibration damping pads with good performance. Some companies will During the research and development stage, the noise test of the vibration damping pad was carried out, but the air conditioner external unit was only placed in a semi-anechoic room, and the source position and decibels of the air conditioner external unit were collected through the microphone, and then connected to the noise and vibration test and analysis system for analysis and comparison. Pa...

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Problems solved by technology

[0002] What is the effect of the existing vibration damping pads for external air conditioners? Some companies have conducted market research and user feedback, but the reliability of the data obtained is not high and the feedback cycle is long, which is not conducive to the development of vibration damping pads with good performance. Some companies will In the research and development stage, the noise test of the vibration damping pad was carried out, but the air conditioner external unit was only placed in a semi-anechoic room, and the source position and decibels of the air conditioner external unit were collected through the microphone, and then connected to the noise and vibration test and analysis system for analysis and comparison. Part of the experimental data can be obtained to a certain extent, which is conducive to the research and development of optimizing the performance of the vibration damping pad. However, due to the single use environment of the air conditioner external unit, the lack of a large amount of data on the collected sound source data, and the location, the experimental data type is single and cannot meet the requirements. Further research and development of vibration damping pad performance needs to be improved. At the same time, if you want to manually change the environment of the air conditioner external unit and the position of the microphone, it is impossible to ensure that the adjustment position is the same every time, so the reliability of the test data is low. Therefore, it is necessary to provide an air conditioner. The machine-used vibration-damping material noise test device solves the above problems

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