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Air-conditioned passenger car fresh air device with check plate on air outlet

A technology of fresh air device and air outlet, used in vehicle parts, transportation and packaging, air handling equipment, etc. strong winds, etc.

Inactive Publication Date: 2012-04-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the air inlets on their roofs do not have enough wind pressure (for example, the speed of the vehicle is low and there is a strong wind along the direction of travel), the dirty air in the compartment will flow backwards from the fresh air outlet. fresh air duct problem
In the case of repeated downstream flow of fresh air and backflow of turbid air, some dust, etc. that could have been attached to the inner walls, corners, and filter screens of the fresh air duct for a certain period of time will be stirred up, and eventually all will be blown away. into the trunk, so the quality (cleanliness) of replacing the fresh air is greatly weakened

Method used

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  • Air-conditioned passenger car fresh air device with check plate on air outlet
  • Air-conditioned passenger car fresh air device with check plate on air outlet
  • Air-conditioned passenger car fresh air device with check plate on air outlet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1 (with reference to figure 1 , 5 ):

[0018] This example is a further optimization example based on the general introduction. In order to prevent the exhaust gas discharged by the air-conditioned passenger car and the dust at the rear of the car from entering the air outlet 20, to ensure better air quality in the car. In this example, a differential pressure control board 1 is installed inside the air outlet 20 to prevent outside air from flowing into the air outlet 20 . The differential pressure control panel 1 is installed in the air outlet 20 with its lower part tilted outwards through a differential pressure control panel hinge support shaft 11 on its upper part, and the tilt angle is 25°-45°. That is to say, the differential pressure control panel 1 is under the action of its own gravity and swings downward around the hinge support shaft 11 of the differential pressure control panel to be in a "normally closed" state. When the outside air pressure ...

Embodiment 2

[0019] Embodiment 2 (with reference to figure 1 ):

[0020] This example is a further optimization example on the basis of the general description or Example 1. In order to reduce the resistance when the air flows, to further save energy and improve the reliability of replacing fresh air. In this example, the windshield cover 3 is in the shape of an arc surface with its concave surface facing downwards, and the axis of the arc surface is parallel to the windshield cover hinge shaft 31 of the windshield cover 3 . At least the part of the heat exchange plate 5 in the ventilation window of the roof 6 has an arcuate surface matching the arcuate surface of the windshield cover 3 . Obviously, in the fresh air duct 8, in the exhaust air duct 2, at the upper and lower edges of the fresh air window and the exhaust window, etc., corresponding circular arcs tangent to the air flow direction should also be designed and processed as much as possible. .

[0021] In the above examples, w...

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PUM

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Abstract

The invention relates to an air-conditioned passenger car fresh air device with a check plate on an air outlet, comprising an air window and an air window cover which are arranged on an air-conditioned passenger car roof; the opening direction of the air window cover opened by taking a hinged fulcrum shaft as an oscillation center faces to the head of the air-conditioned passenger car; the lower part of the hinged fulcrum shaft is connected with a heat exchange plate made of metal materials; the air window is divided into a fresh air window and an air exhaust window by the heat exchange plate; the fresh air window is internally provided with an air filter screen; the lower end and both side walls of the heat exchange plate are connected with a fresh air duct positioned at one side of the inner top surface of the air-conditioned passenger car roof; the fresh air outlet of the fresh air duct faces to the head direction of the air-conditioned passenger car; one side of the outer top surface of the air-conditioned passenger car roof is provided with an air exhaust duct with a tail end cover on the air exhaust window; the air exhaust opening of the air exhaust duct faces to the tail direction of the air-conditioned passenger car; and the fresh air outlet is internally provided with the check plate for preventing air inside the air-conditioned passenger car from flowing back into the fresh air outlet. The invention can greatly enhance the cleanliness of fresh air exchanged.

Description

[0001] This application is a divisional application with the application number 200910103945.5, the application date is May 26, 2009, and the name is "A Fresh Air Device for Air-Conditioned Passenger Cars". technical field [0002] The invention relates to an air-conditioned passenger car, in particular to a fresh air device in the air-conditioned passenger car. Background technique [0003] With the continuous improvement of people's living standards, people have higher and higher requirements for artificial environments, so there have been air-conditioned buses equipped with air conditioners. However, at present, there is a problem of poor air quality in the use of air-conditioned buses, and complaints about the lack of ventilation of air-conditioned buses have appeared in the newspapers in major cities. Because the height of the passenger car is limited, the internal space is small, and the density of personnel is high, if the fresh air is insufficient, the CO 2 content ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/26
Inventor 串禾江涛李国帅陈贝詹武刚张瑜江书峣
Owner CHONGQING UNIV