Active noise reduction air conditioning system and noise reduction control method thereof
An air-conditioning system, active noise reduction technology, applied in active noise control, noise suppression, heating methods, etc., can solve the problems of limited noise reduction effect, low frequency noise cannot be effectively absorbed, and it is difficult to achieve noise reduction effect, etc. Excellent noise reduction effect, guaranteed sound field processing efficiency, and the effect of low computing cost
Active Publication Date: 2021-01-22
上海协格机电科技股份有限公司
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Problems solved by technology
[0003]
However, the existing passive sound-absorbing materials are usually only effective for medium and high-frequency noise.
Due to the vibration frequency and resonance frequency of the equipment components themselves, a large amount of low-frequency noise generated during the operation of the air conditioner cannot be effectively absorbed
Therefore, the noise reduction effect of the existing equipment is limited, and it is difficult to achieve the expected noise reduction effect
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[0021] In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0022] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be und...
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The invention discloses an active noise reduction air conditioning system and a noise reduction control method thereof. The active noise reduction air conditioning system is characterized in that pickup equipment is arranged at an air outlet of an air conditioning system, a loudspeaker is arranged in an air duct in the air conditioning system, an active noise reduction processing unit is used forcarrying out sound field processing on the noise component output by the air conditioning system and collected by the pickup equipment in real time, a driving signal corresponding to the noise component is obtained, and the loudspeaker is driven by using the driving signal to output noise reduction sound waves. Therefore, the noise reduction sound waves can be used for actively counteracting the noise sound waves, and the noise reduction effect on medium-frequency noise and low-frequency noise is improved.
Description
technical field [0001] The invention relates to the field of air conditioning equipment, in particular to an active noise reduction air conditioning system and a noise reduction control method thereof. Background technique [0002] During the operation of existing air-conditioning equipment, due to the operation of compressors, fans and other equipment, as well as the frequency vibration of indoor units and outdoor units, a lot of noise will be generated in the working environment. In the prior art, in order to reduce the noise of the air conditioner, it is usually necessary to install passive noise-reducing and sound-absorbing materials inside the equipment, and to install buffer materials at the time connection positions of the components, so as to reduce the vibration during the operation of the equipment. [0003] However, the existing passive sound-absorbing materials are usually only effective for medium and high-frequency noise. Due to the vibration frequency and res...
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IPC IPC(8): G10K11/178F24F13/24
CPCG10K11/1781G10K11/1785G10K11/1787F24F13/24G10K2210/109G10K2210/3038F24F2013/247
Inventor 黄小宝张美玲
Owner 上海协格机电科技股份有限公司