JPS584647B2 - Forced ventilation system for bus cabins that utilizes wind pressure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cabin ventilation and exhaust system for a bus body.

In recent years, the number of tourists using buses for sightseeing, especially those using specially designed luxury sightseeing buses, has been increasing. The vehicle is equipped with equipment that regulates the temperature and humidity of the cabin air, and when using this equipment, all windows in the cabin are often closed.

In addition, an increasing number of newly built tour buses have fixed windows that cannot be opened or closed, and in any case, these long, closed cabins contain food and beverages used by passengers, such as food odors, beverages, etc. A mixture of cigarette smoke, the scent of various alcoholic beverages, etc.
Passengers boarding these aircraft are often bothered by this odor, and the need for adequate ventilation as a measure to prevent odor in the cabin is becoming increasingly important.

The present invention has been devised as a measure to solve this problem, and its configuration and operation will be explained below with reference to the drawings.

In the figure, 1 is the bus body, 2 is a passenger compartment, and 3 is an entrance door to the passenger compartment.

Reference numeral 4 denotes the ceiling of this, and an air dynamic pressure hole 5 is provided at the rear end of the ceiling 4.

This air dynamic pressure hole 5 is similar to the known bus ceiling ventilation system in the passenger compartment 2.
In addition, in the case of rainy weather, a shape that has the function of preventing raindrops from entering and sufficiently guiding outside air into the passenger compartment 2 receives air dynamic pressure in the direction of travel of the bus body 1. It is installed in a direction that pushes air sufficiently into the passenger compartment.

Reference numeral 6 is a power exhaust fan installed in front of the ceiling 4, which incorporates an exhaust fan and a power source to drive the fan, and when the power switch in the driver's seat is closed, the air in the cabin is powerfully supplied to the ceiling as required. It can be discharged from the shape cover 7.

Further, reference numeral 8 denotes a fixed adjustable type exhaust hole which is arranged in the negative pressure area generated by the movement of the vehicle body on the left and right opposing side walls of the power exhaust fan 6. is provided, and a dividing plate 10 is provided inside thereof,
A drainboard-shaped internal cutout 12 is provided on the inner plate 11 in the passenger compartment 2 at a position passing through the lower surface of the dividing plate 10.

An opening adjustment device 13 is added to this drainboard-shaped internal slit 12 to adjust the size of the gap between the drainboard-shaped openings.

．． The cabin forced ventilation system according to the present invention configured as described above can be of a long, almost closed type, that is, a type in which all the windows in the cabin are fixed, or a type with a plurality of opening/closing windows installed on both sides. When the window is closed, it operates as follows.

That is, when this bus body accommodates passengers and travels, the air dynamic pressure hole 5 at the rear of the ceiling 4 is closed because the body is almost sealed.
Therefore, outside air does not flow into the passenger compartment in proportion to the traveling speed, and dynamic pressure is applied to the passenger compartment, and a negative pressure area is generated in the front part of the vehicle body and its surroundings.In this case, as in the configuration of the present invention, When the power exhaust fan 6 located on the ceiling 4 near the negative pressure generation part is activated, a powerful cabin air exhaust force is generated, and a large amount of cabin air can be exhausted by using this dynamic pressure and negative pressure, that is, wind pressure. .

Therefore, when the vehicle is running, short-term operation of this power exhaust fan is sufficient to eliminate the above-mentioned abnormal odor and cigarette smoke, and it is possible to prevent passengers from getting chills due to long-term operation when this device is not in this position. However, in the present invention, a fixed and adjustable discharge hole 8 is additionally provided.

That is, when the bus body 1 is stopped, the wind and rain hitting the external slat-shaped cut-out window 9 are blocked by the internal partition plate 10 and does not flow into the cabin, but when the bus body 1 is running, the area around the fixed adjustable discharge hole 8 is Since it is located within the range of the negative pressure section, the pressurizing force of the cabin air and the negative pressure exhaust force are correlated with each other according to the opening degree of the adjustment device 13, so that refreshing and slow ventilation in the cabin can be freely controlled.

Normally, this type of vehicle is driven for quite a long time, so
This slow cabin ventilation is also extremely necessary for passengers.

The combination of the air dynamic pressure hole 5, the power exhaust fan 6, and the essential fixed adjustment type exhaust hole 8, and the amount of air to be added and discharged should be of the optimum size depending on the size of the passenger compartment of the car body to which it is applied. selected.

The present invention has the structure and operation as described above, and therefore has a number of effects that are greater than ever before for the large bus body.In particular, the present invention is a combination of using the wind pressure during running to exhaust the long cabin of the Menghua bus. As a result, it is possible to generate powerful exhaust air that is not found in ordinary exhaust or ventilation systems, and at the same time, by using the fixed adjustable exhaust hole in the front room and stopping the operation of the ceiling powered exhaust fan, this powerful exhaust air can be ventilated extremely slowly. Since it can be converted to
Not only does the passenger experience no discomfort even during long rides, but the inflow of outside air through the air dynamic pressure holes in the ceiling allows fresh outside air to be brought in from the highest point, creating an extremely refreshing indoor ventilation situation. I can do it.

In addition, the powerful exhaust stage, which cannot be found with other methods, uses dynamic pressure and negative pressure during driving to eliminate abnormal odors in the cabin in the shortest possible time even when all windows are closed. Even in the case of a bus equipped with this equipment, the effect is outstanding, such as keeping clouds off the windows and removing cigarette smoke, making the passenger experience even more refreshing inside the bus, and equipped with air-conditioning and heating. It has a special effect that is essential for modern Menghua buses.

[Brief explanation of the drawing]

Fig. 1 is an overall explanatory external view of an embodiment of the present invention, Fig. 2 is an explanatory view of the exhaust inside the vehicle body shown in Fig. 1, and Fig. 3 is a similar structural explanatory view at the AA cross section in Fig. 2. . 1... Bus body, 2... Guest room, 4...
...Ceiling, 5...Air dynamic pressure hole, 6...
... Power discharge hole, 7 ... Cover, 8 ... Fixed adjustable discharge hole, 9 ... External slit, 10 ...
...Split plate, 11...Inner plate, 12...
Internal slit window, 13...opening adjustment device.

Claims (1)

[Claims] 1. An air dynamic pressure hole is provided at the rear of the roof of the car body to utilize the movement of the car body to flow into the cabin, and a hole is installed near the roof where the negative air pressure generated in front of the roof can be used to penetrate the cabin ceiling and draw the cabin air. A passenger cabin forced ventilation system for a bus body utilizing wind pressure, characterized in that a power exhaust fan is disposed to discharge power, and a fixed adjustable discharge hole is provided near a negative pressure section similarly generated on both side walls of the vehicle body.