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Noise collection analysis and active noise reduction system and method for air conditioning outdoor unit

A technology of collection analysis and active noise reduction, which is applied in air-conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve the problems that old units cannot be implemented, lack of noise treatment solutions for outdoor units, and achieve versatility Strong, cost-reducing effect

Pending Publication Date: 2019-09-06
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the existing solutions cannot be implemented for the old units that have been sold and successfully installed. In order to solve this problem, we propose an active noise reduction solution for air conditioning units
The existing active noise reduction scheme lacks a solution to the noise of the outdoor unit, and this application can solve this part of the demand

Method used

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  • Noise collection analysis and active noise reduction system and method for air conditioning outdoor unit

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Embodiment 1

[0041] Such as figure 1 As shown, the present invention discloses a noise collection analysis and active noise reduction system for an air conditioner outdoor unit, including a noise reduction protective cover 2, a number of noise collection devices 1, a noise information processing device 4 and a sound wave emission device, wherein:

[0042] The noise reduction protective cover 2 is set on the periphery of the air conditioner outdoor unit;

[0043] Several of the noise collection devices 1 are distributed in different positions of the noise reduction shield 2, and are used to collect unit noise spreading in different directions, and send the collected audio information to the noise information processing device 4;

[0044] The noise information processing device 4 is located on the top surface of the noise reduction protective cover 2, and is used to filter out the ultra-high frequency and ultra-low frequency noises that cannot be perceived by the human ear and analyze the fr...

Embodiment 2

[0056] Such as figure 2 As shown, the present invention additionally discloses a noise collection analysis and active noise reduction method for an air-conditioning outdoor unit, using the above-mentioned noise collection analysis and active noise reduction system to perform noise collection analysis and active noise reduction, including the following steps:

[0057] Step 1: Collect the noise of the air-conditioning outdoor unit spreading in different directions through the noise collection device located on the 8 vertices of the noise reduction shield, and send the collected audio information to the noise information processing device through wireless transmission;

[0058] Step 2: The noise information processing device filters out the ultra-high-frequency and ultra-low-frequency noises that cannot be perceived by the human ear, analyzes the frequency and magnitude of the noise, and determines the direction of the noise, and then feeds the analysis results back to the sound ...

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Abstract

The invention discloses a noise collection analysis and active noise reduction system and method for an air conditioning outdoor unit. The noise collection analysis and active noise reduction system comprises a noise reduction protective cover, a plurality of noise acquisition devices, a noise information processing device and a sound wave emission device, wherein the noise reduction protective cover is arranged on the periphery of the air conditioning outdoor unit in a sleeved mode; and the noise collecting devices are distributed at different positions of the noise reduction protective cover, the noise information processing device is used for collecting unit noise diffused to different directions and sending the collected audio information to the noise information processing device, thenoise information processing device is located on the top surface of the noise reduction protective cover, and is used for filtering ultra-high frequency and ultralow frequency noise which cannot besensed by human ears and analyzing the noise frequency, the size and the measurement noise so as to feed the analysis result back to the sound wave emission device; and the sound wave emission deviceis arranged on the noise reduction protective cover and is used for emitting sound wave signals with the same noise frequency and opposite directions so as to resist the propagation of noise. According to the system and method, the unit noise of any frequency in any direction can be eliminated or weakened, so that active inhibition of the noise of the outdoor unit of the air conditioner is realized without changing the structure of the unit, and the cost of a noise reduction project of the air conditioner is reduced.

Description

technical field [0001] The invention relates to the field of heating, ventilating and air-conditioning, and in particular to a system and method for noise collection and analysis and active noise reduction for an air-conditioning outdoor unit. Background technique [0002] At present, people's living standards are improving day by day, air conditioners have become an indispensable electrical appliance for people's home life, and people's requirements for the performance of air conditioners are getting higher and higher. Operational capabilities also present new requirements. [0003] In the prior art, the noise treatment of air-conditioning units in the air-conditioning industry market is basically adjusted from the structure and operating conditions of the air-conditioning units themselves, that is, from the source of noise generation, which has a negative impact on the design and performance of the air-conditioning units. affected. Moreover, the existing scheme cannot be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/40F24F11/62F24F13/24G01H17/00F24F130/40
CPCF24F1/40F24F11/62F24F13/24G01H17/00F24F2130/40F24F2013/247
Inventor 张宇星冯劲梅吴志云唐斐骁朱倩翎
Owner SHANGHAI INST OF TECH
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