Title:
AIR CONDITIONING SYSTEM HAVING VARIABLE AIR VOLUMES IN MULTIPLE AREAS
Document Type and Number:
WIPO Patent Application WO/2024/092916
Kind Code:
A1
Abstract:
An air conditioning system having variable air volumes in multiple areas, comprising multiple independent mixing air boxes (1), air ducts (2), and temperature sensors (104), fresh air valves (107), and return air valves (105) provided on the mixing air boxes (1). Each railway car is divided into several independent areas, each area has an independent modular mixing air box (1), fresh air is suctioned by means of a variable frequency fan (103) of each mixing air box (1) and is mixed with return air in the mixing air box (1), and then the mixed air is delivered into a railway car area where the mixing air box (1) is located. Each mixing air box (1) is provided with a fresh air valve (107) and an air return valve (105), and is also provided with a temperature sensor (104), so that the temperature of the mixed air can be monitored; by adjusting the degrees of opening of the fresh air valve (107) and the air return valve (105), the mixing ratio of fresh air and return air is controlled, so as to control the air supply temperature, thereby achieving a target set value. By means of the configurations, a conventional integrated air conditioning mode for railway cars is changed, and by dividing each railway car into independent areas, personalized air conditioning of local areas of the railway car is achieved.
Inventors:
XU JUN (CN)
LI CHANGSHENG (CN)
ZHAO JINLONG (CN)
BI ZHONGGUO (CN)
LI CHANGSHENG (CN)
ZHAO JINLONG (CN)
BI ZHONGGUO (CN)
Application Number:
PCT/CN2022/134507
Publication Date:
May 10, 2024
Filing Date:
November 25, 2022
Export Citation:
Assignee:
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD (CN)
International Classes:
B61D27/00
Foreign References:
| CN112092847A | 2020-12-18 | |||
| CN213323098U | 2021-06-01 | |||
| CN108609024A | 2018-10-02 | |||
| CN109878542A | 2019-06-14 | |||
| JPH0516802A | 1993-01-26 | |||
| JP6675667B1 | 2020-04-01 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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