Noise testing device for vibration-damping material for external air-conditioner

Abstract

The invention discloses a vibration-damping material noise testing device for an air-conditioner external unit, which relates to the field of vibration-damping material testing and comprises a frame placed in a semi-anechoic chamber, a push handle is installed on the side of the frame and a universal direction is provided at the bottom end of the frame The air-conditioning external unit is placed on the frame, and microphones are arranged around the air-conditioning external unit. The microphone is electrically connected to the noise and vibration test and analysis system and provides the system with a collected noise source. There is a position adjustment mechanism for changing the horizontal position of the feet of the air conditioner's external unit. The invention collects the sound source position and decibels by setting adjustable microphones around the air conditioner's external unit, and compares and analyzes the air conditioner's outdoor unit in different use environments through the noise and vibration test and analysis system. The data difference of the noise source under the operation mode and before and after using the vibration-absorbing material provides a large amount of data for the performance research of the vibration-damping pad.

Description

Technical field [0001] The present invention relates to the field of vibration damping material testing, in particular to a noise test device for vibration damping materials used outside the air conditioner. Background [0002] How the existing air conditioning external unit vibration damping pad use effect in the end, some enterprises through market research, user feedback, but the data reliability is not high and the feedback cycle is long, is not conducive to the development of good performance of the vibration damping pad, some enterprises will be in the research and development stage of the vibration damping pad noise test, but only the air conditioning external unit is placed in a semi-silencer chamber, through the microphone to collect the air conditioning outside the start of the student location and decibel, and then connect the noise vibration test analysis system analysis and comparison, so that although part of the experimental data can be obtained to a certain extent...

AI Technical Summary

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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