Title:
NOISE REDUCTION DISTRIBUTION BOX, AIR CONDITIONER PIPELINE SYSTEM AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/098331
Kind Code:
A1
Abstract:
A noise reduction distribution box, an air conditioner pipeline system and an air conditioner. The noise reduction distribution box comprises: a reference microphone (2) connected to an air inlet end (11) of a distribution box body (1) by means of a first connecting part, a first through hole being provided on the first connecting part; secondary speakers (3) connected to air outlet ends (12) by means of second connecting parts, second through holes being provided on the second connecting parts; and error microphones (4) connected to the air outlet ends (12) by means of third connecting parts, third through holes being provided on the third connecting parts. The reference microphone (2) located at the air inlet end (11) monitors a noise signal in real time by means of the first through hole, and transmits same to a controller (5). The controller (5) forms a control signal to push the secondary speakers (3) to emit an inverse sound wave, which is transmitted to the distribution box by means of the second through holes so as to cancel out noise transmitted from the air inlet end (11). The error microphones (4) monitor the noise cancellation effect in real time by means of the third through holes and transmit same back to the controller (5). The controller (5) iteratively adjusts the outputted control signal according to the control result, so that the noise at the position of the air outlet ends (12) is suppressed.
Inventors:
ZHANG WEI (CN)
WANG GUOHUI (CN)
ZHOU BAOYIN (CN)
ZHANG ZHIRONG (CN)
WANG GUOHUI (CN)
ZHOU BAOYIN (CN)
ZHANG ZHIRONG (CN)
Application Number:
PCT/CN2020/112176
Publication Date:
May 27, 2021
Filing Date:
August 28, 2020
Export Citation:
Assignee:
ZKZS ELECTRONIC TECH CO LTD (CN)
International Classes:
B61D27/00; F24F13/24; G10K11/175
Foreign References:
| CN110843831A | 2020-02-28 | |||
| CN211809605U | 2020-10-30 | |||
| CN209096723U | 2019-07-12 | |||
| CN108778796A | 2018-11-09 | |||
| CN109405262A | 2019-03-01 | |||
| CN207045343U | 2018-02-27 | |||
| CN205536473U | 2016-08-31 | |||
| US6049615A | 2000-04-11 |
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