Title:
ACTIVE NOISE REDUCTION DISTRIBUTION BOX FOR TRAIN AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/087430
Kind Code:
A1
Abstract:
An active noise reduction distribution box for a train air conditioner comprises a distribution box body (1), a speaker (2), multiple error microphones (3), and a controller (4). The distribution box body (1) comprises an air inlet portion (11) and at least two air outlet portions (12). An air inlet end of each air outlet portion (12) is connected to an air outlet end of the air inlet portion (11). The number of error microphones (3) and the number of air outlet portions (12) are the same. The speaker (2) is provided on an outer wall of the air inlet portion (11). One of the error microphones (3) is correspondingly provided on an outer wall of one of the air outlet portions (12). The controller (4) is connected to the speaker (2) and the error microphone (3) by means of signal lines. Multiple through-holes are provided on a wall surface at which the air inlet portion (11) contacts the speaker (2), and multiple through-holes are provided on a wall surface at which the air outlet portion (12) contacts the error microphone (3). The active noise reduction distribution box for the train air conditioner achieves active noise reduction between an outlet of an air conditioner main unit and an inlet of an air distribution pipeline, thereby preventing noise of the air conditioner main unit from spreading along the air distribution pipeline.
More Like This:
| WO/2018/216578 | AIR-CONDITIONING DEVICE AND NOISE REDUCTION DEVICE |
| WO/2019/104967 | MULTI-CONNECTED AIR CONDITIONING SYSTEM NOISE CONTROL METHOD AND CONTROLLER |
| WO/2019/169718 | AIR CONDITIONING DEVICE |
Inventors:
WANG GUOHUI (CN)
ZHOU BAOYIN (CN)
ZHANG ZHIRONG (CN)
ZHOU BAOYIN (CN)
ZHANG ZHIRONG (CN)
Application Number:
PCT/CN2018/113329
Publication Date:
May 07, 2020
Filing Date:
November 01, 2018
Export Citation:
Assignee:
ZKZS ELECTRONIC TECH CO LTD (CN)
International Classes:
F24F13/24
Foreign References:
| CN105464752A | 2016-04-06 | |||
| CN104165255A | 2014-11-26 | |||
| CN108088064A | 2018-05-29 | |||
| CN207113187U | 2018-03-16 | |||
| JP2004232964A | 2004-08-19 | |||
| JP2000146274A | 2000-05-26 | |||
| JP2000112480A | 2000-04-21 |
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