Title:
LOW-NOISE AIR CONDITIONER VENTILATION SYSTEM FOR RAILWAY PASSENGER CAR
Document Type and Number:
WIPO Patent Application WO/2023/077614
Kind Code:
A1
Abstract:
Disclosed in the present invention is a low-noise air conditioner ventilation system for a railway passenger car. The low-noise air conditioner ventilation system comprises an air conditioning duct (1) and an air conditioning unit (6), wherein an exhaust fan (67) and an exhaust duct (68) are arranged in the air conditioning unit, a multi-layer sound insulation and noise reduction structure is arranged on a bottom plate (69) of the air conditioning unit, a labyrinth silencing structure (4) is arranged at an exhaust inlet of the exhaust duct, an inlet of the labyrinth silencing structure communicates with a passenger room, and an outlet of the labyrinth silencing structure is connected to the exhaust inlet. By means of the present invention, the exhaust noise of the air conditioning unit is reduced, and the traveling comfort of passengers in the passenger room is greatly improved.
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Inventors:
LIU ZHIYUAN (CN)
MAO YEJUN (CN)
ZHU YINGMOU (CN)
JIANG FAN (CN)
LUO JIANGGUO (CN)
YI KE (CN)
MAO YEJUN (CN)
ZHU YINGMOU (CN)
JIANG FAN (CN)
LUO JIANGGUO (CN)
YI KE (CN)
Application Number:
PCT/CN2021/137018
Publication Date:
May 11, 2023
Filing Date:
December 10, 2021
Export Citation:
Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO LTD (CN)
International Classes:
B61D27/00; B60H1/24
Domestic Patent References:
| WO2018025532A1 | 2018-02-08 |
Foreign References:
| CN113928358A | 2022-01-14 | |||
| CN111361582A | 2020-07-03 | |||
| CN202294164U | 2012-07-04 | |||
| CN203126862U | 2013-08-14 | |||
| CN203844758U | 2014-09-24 | |||
| CN210320573U | 2020-04-14 | |||
| CN203254928U | 2013-10-30 | |||
| CN110450802A | 2019-11-15 | |||
| CN110293983A | 2019-10-01 |
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM (CN)
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