JP3498526B2 - Ventilation equipment for mobile equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] The present invention relates to a railway vehicle and a monorail.
Mobile devices that move in both forward and backward directions
The present invention relates to a ventilation duct structure installed in a building. [0002] 2. Description of the Related Art Mobile devices such as railway vehicles and monorail vehicles.
In air conditioners, power equipment, control equipment, etc.
Collect cooling air from outside the mobile device for cooling
There is a need. Mobile equipment stops or runs at low speed (mobile
Movement), it is not difficult to extract fresh air, but high speed
When the vehicle is traveling at
The resulting air intake duct opening (air intake) is at atmospheric pressure
Negative pressure often occurs. Air intake duct
When the opening has a negative pressure with respect to the atmospheric pressure, cooling air is collected.
Resistance of the blower to increase the required cooling air
A problem arises in that the amount cannot be secured. In this case, the capacity of the blower is increased to increase the required cooling capacity.
Although it is conceivable to secure the amount of wind, it is necessary to increase the capacity of the blower.
Increasing not only increases costs
In general, railway and monorail vehicles are equipped with various devices
Strict restrictions on space make such measures difficult
It is often. Therefore, when the mobile device runs at high speed
Is it hard to be affected by the running wind, or running on the contrary
Effective use of wind kinetic energy to secure required airflow
There was a need for a wind structure that could be used. In particular, railway vehicles and goods
Rail vehicles and the like travel in both directions, forward and backward.
Required cooling in both directions
It is important to secure the air volume. Conventionally, such a two-way air intake structure,
Alternatively, in the case of the air extraction structure using a heat exchanger,
The structure of the wind channel is of interest for both airflow flows.
In particular, all ventilation ducts for mobile equipment run on mobile equipment.
It is configured symmetrically with respect to the row direction. With these structures
Is to receive airflow evenly when traveling in both directions,
Airflow channels or openings must be provided on the vehicle surface
Must. At the same time, if the flow path is different in the traveling direction,
Since the direction of the airflow flowing through the flow path is also different, cooling the fan etc.
If means are provided, these should be
Control or change the shape of the flow path.
You. Such an example is disclosed in Japanese Patent Application Laid-Open No. 7-228249.
Gazette or JP-A-8-85455.
ing. [0005] In addition, air is collected by only one blower.
First, the blower can be driven / stopped, or the rotation direction can be switched.
As an example of a structure that does not require the above, Japanese Patent Application Laid-Open No. 4-38264
No., published in US Pat. [0006] It should be noted that conventional mobile equipment including the above-mentioned invention is also included.
Air extraction ducts are symmetrical to the traveling direction of mobile equipment.
There are features that are configured. [0007] SUMMARY OF THE INVENTION In the above prior art,
Is a flow path structure that takes in traveling wind, for example, a duct
And the direction of travel
The shape of the fan and flow path according to the judgment device and traveling direction
Is controlled to change. However, the operation of the fan depends on the traveling direction.
The structure becomes complicated when switching. Further movable parts
Increase the minutes, impairing reliability and maintainability
Will be lost. In other words, depending on the traveling direction of the mobile device,
The direction of the cooling air flowing through the heat exchanger changes
Requires two blowers to extract and exhaust cooling air
Not only does it blow, but also blows according to the traveling direction of the mobile device
Switch the rotation direction of the machine, or control the start / stop
It is necessary to control. The direction of the cooling air flowing through the heat exchanger is constant.
Ducts and dumps for air intake and exhaust
It ’s easy to imagine that you need two sets of pa
You. In this case, the fact that the flow path structure becomes complicated is as described above.
Another problem is that the resistance of the damper
That the cooling air volume decreases especially when the vehicle is stopped.
Is raised. As mentioned above, railway cars, monorail cars, etc.
Are all mobile devices in the prior art
It is configured to be symmetrical with respect to the running direction of the equipment.
You. However, in a symmetrical configuration, one air intake
From, traveling along one direction of forward or backward
Only the wind can guide the air intake. Subordinate
The efficiency of traveling wind caused by forward and backward bidirectional movement
In order to extract air well, in the prior art,
Two or more air intakes are required, and the structure of the air intake duct
And the arrangement and operation control of the blower for air sampling are complicated
I will. [0011] For the above-mentioned reasons, the above-mentioned prior art has a
Duct structure is complicated, costly and reliable
There was also a problem that it was difficult to secure sex. In addition, the structure
Because of the complexity, time is required for maintenance and inspection work that is required regularly.
There was also the problem of this. [0012] It is an object of the present invention to provide a mobile device with high speed and bidirectional
Is not affected by the wind when traveling
On the contrary, the kinetic energy of the traveling wind
Air collection device that can be used to ensure the required amount of cooling air
With smaller size, better space efficiency, simple structure,
To provide at lower cost. [0013] [Means for Solving the Problems]The purpose is the center of the vehicle
Equipment box suspended near the floor, and cover the underfloor equipment box.
Underfloor skirt, this underfloor skirt and the underfloor equipment box
And a ventilation duct formed between
A blower for mobile equipment equipped with an attached blower
The air intake of the air intake duct
Provided on the lower surface in the vicinity of the depression of the cart,
A guiding portion for guiding the traveling wind to the air intake
Formed by the air guide plate and the second air guide plate,
The first and second air guide plates are used to move the vehicle forward and backward.
To guide the traveling wind to the air intake in both directions
More achieved. In the air sampling device according to the present invention, a mobile unit
Two or more air asymmetrically arranged in the direction of travel
Air guide section consisting of a guide plate near one air intake
In which direction the mobile device travels in either direction.
Even in the event of
You can take care of it. Thus, according to the present invention,
Highly reliable and easy-to-maintain air intake for mobile equipment
Can be realized at low cost. [0015] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described with reference to FIG. FIG. 5 shows a first embodiment of the present invention, or
Equipped with a ventilation device for mobile equipment according to the second embodiment
1 shows an external view of a straddled monorail vehicle. [0017] To enhance short-distance transportation capacity in large cities
In recent years, the operating speed of monorail vehicles has been increasing,
Currently, the maximum operating speed of monorail vehicles is from 80 km / h
It has reached 100 km. Conventional monorail vehicles use cams
Although the traveling speed was controlled by the axis control,
Recent monorail vehicles for speeding up and improving riding comfort
For inverters, inverter-controlled vehicles are becoming mainstream. Inverter
The operating temperature of the heating element such as IGBT is controlled by the camshaft.
Much more severe than resistors used in control vehicles
Therefore, it is possible to secure the necessary amount of cooling air even when driving.
It is important. For example, used in a conventional camshaft control car
The maximum allowable temperature is about 250 degrees Celsius
Therefore, these devices are usually cooled by natural air cooling.
Was possible. However, used in the inverter device
IGBT, which is a typical control element, has an operating temperature of
The temperature must be kept below about 100 degrees Celsius
It is necessary to extract the air flow. Hereinafter, in this specification, the inverter device and the like are included.
Cooling airflow of the equipment box under the floor of the high-speed monorail vehicle delivered
An embodiment to which the present invention is applied as an air sampling device will be described.
You. However, the application effect of the present invention is limited to the range described here.
It is not specified, the cooling airflow for air conditioning inside the car, or
It is also effective for the purpose of collecting cooling airflow from power equipment. Ma
In addition, applicable vehicles are not limited to monorail vehicles.
In addition, the present invention is applicable to all types of transportation such as high-speed rail vehicles
It can be applied as a ventilation device for moving equipment. In the straddle-type monorail vehicle 10, the traffic
Always prevent the equipment suspended under the floor from falling and turbulence in the surrounding airflow
In order to reduce running resistance by controlling
The lower equipment is covered with a skirt 13 under the floor as shown in FIG.
Has been done. [0020] The vehicle travels through the structure of the bogie section of the straddle-type monorail.
FIG. 6 is a cross-sectional view perpendicular to the direction. Straddle type monolay
The truck of the weight of the car body 11 and the equipment box 20 under the floor etc.
Main wheels 14 to be held, keeping the posture of the vehicle to prevent falling and falling
Auxiliary wheels 15 for stopping, and these wheels and the vehicle body
The main component is a bogie framework 16 for fastening
Have been. The length of the axle of the auxiliary wheel 15 is the center of gravity of the vehicle.
Enough reaction force to prevent the vehicle from tipping over
To apply the moment to the vehicle, as shown in FIG.
It is long. So cover these
Under the floor skirt 13 for the vehicle in which the bogie unit is stored
At the front and rear, the shape protrudes vertically downward.
It is usual that it is. As shown in FIG. 1, control equipment and the like are housed therein.
The underfloor equipment box 20 is located at the center of the vehicle,
Suspended near. As can be seen from FIG.
The side of the vehicle center side (rail 1 side) of the
Open. Gap between underfloor equipment box 20 and rail 1
Is as narrow as about 400mm.
Turbulence is likely to occur due to the cooling airflow
Not suitable as a wind outlet. Also, the anti-floor skirt
Considering cooling air flow from the opposite side (outer side)
The length of the cooling duct in the heat exchanger
Cooling ducts had to be vertical
Therefore, the cooling duct structure becomes complicated when using side ventilation.
I will. In addition, rainwater is taken in by side wind.
The possibility of intrusion from the mouth is high, which is not preferable. Above reason
Cooling duct structure for straddling monorail vehicles
Takes air from the underside of the underfloor skirt and discharges it to the rail 1 side.
It becomes a structure to care about. In this embodiment, the air intake duct 33
Of the underfloor skirt 13
This step and the empty space are provided on the lower surface near the
Air induction constituted by air induction plates 42-a and 42-b
The cooling air flow is guided to the air intake 31 by the section 40
I do. Hereinafter, the effects of the present embodiment and the state of the cooling airflow will be described.
This will be described in detail with reference to FIGS. FIG. 1 shows a detailed structure near the air intake duct 33.
Shows the cooling airflow when the vehicle travels to the left on the page.
FIG. When the vehicle travels toward the left side of the page
In the case where the air guide plate 42-a according to the present invention is not provided,
But not along the underside of the underfloor skirt 13
The cooling air flow (running wind) 50 is separated at the step portion and circulated.
Creates reflux. Therefore, the vicinity of the air intake 31 is
The pressure becomes negative with respect to the atmospheric pressure, increasing the resistance of the cooling air
Cooling air volume decreases. In the ventilation device according to the present invention
Is the running flowing along the lower surface of the underfloor skirt 13
The wind is introduced by the air guide plate 42-a.
Guided to the mouth 31, heat exchanged by the heat exchanger 21 and underfloor equipment
The control device in the box 20 is cooled. Heat generated by heat exchanger 21
The exchanged cooling airflow 50 flows from the upper opening of the ventilation duct 33.
The air is exhausted into the skirt 13 and the skirt 13 is located at the center of the vehicle.
Is released to the rail 1 side from the opening of the rail. The air guide plate
42-a is an air inlet by an air guide plate 42-a.
The cooling airflow 50 turned in the direction of 31 is more reliably
Plays an auxiliary role to guide the air into the air intake duct 33
You. Next, FIG. 2 shows that the vehicle is moving toward the right side of the drawing.
FIG. 4 is a diagram illustrating a state of a cooling airflow 50 when traveling. This
In the case of, the cold flowing along the lower surface of the underfloor skirt 13
The reject airflow is reduced by the auxiliary air guide plate 42-b described above.
After peeling off, step portion of underfloor skirt 13
Collide with Part of the cooling airflow that collides with the step
It is led to the air intake 31 and the rest is a skirt under the floor
13 and the gap between the aforementioned air guide plate 42-a.
It passes and flows out. That is, in this case, the underfloor skirt 13
The step acts as the air guide plate 42-c. still,
Flow of the cooling airflow 50 after being guided to the air intake 31
Is almost the same as when the vehicle is running to the left of the page.
You. FIGS. 3 and 4 show the effect of the present embodiment.
In order to confirm, the number of airflows near the air extraction device of the present embodiment
It is a figure showing the result of having performed value simulation. FIG.
Indicates the airflow condition when the vehicle is traveling to the left of the page.
FIG. 4 shows the state of airflow when traveling to the right side of the paper.
You. The vector shown in each figure is the travel at each point.
Expresses the direction and strength of the wind. Simulation of airflow
Are continuous equations and momentum equations (Navier
To numerically solve the Stokes equation) using the finite element method
More detailed explanation is omitted due to space limitations.
You. In each simulation,
On the inflow boundary set at a sufficient distance
Here, the uniform traveling wind (2
2m / s) and the air at the air intake
Imposing pressure conditions. So, if the air intake
If the nearby pressure (static pressure) is higher than the atmospheric pressure, the traveling wind
Naturally led to the air intake. Conversely, air intake
If the pressure near the mouth is lower than the atmospheric pressure,
Then, an airflow that flows out is generated. In this simulation
In the following, the resistance effect of the heat exchanger 21 is not considered,
In addition, assuming the two-dimensional nature of the flow,
The effect is ignored. However, in this ventilation system
And all hydrodynamically important factors are taken into account.
By this simulation, the running wind
The effect of the wind can be confirmed. When the vehicle is traveling on the left side of the drawing, FIG.
As described above, the traveling wind is generated by the air guide plates 42-a and 42-a.
-B leads to the air intake 31. This implementation
In the above-mentioned form, forced blasting by a blower etc. is not performed
As a result, some backflow occurs in the air intake duct 33,
To the air intake 31 from the air guide 40
Airflow is occurring. Although not shown in this drawing,
The maximum flow velocity of the airflow guided to the entrance is about 15 m / s
Which is about 70% of the wind speed of the traveling wind.
is there. Also, the average flow velocity of the airflow guided to the air intake
Was about 5 mm / sec. The movement of this cooling airflow
When energy is converted to static pressure, it is approximately 1.5 mmAq (dynamic
Pressure). Therefore, when this air sampling device is applied,
Dynamic pressure and ventilation of cooling airflow exhausted from the upper part of duct 33
The total resistance is. Cooling unit so that it is about 5 mmAq or less.
If you design the project, you can use underfloor equipment without using a blower.
20 cooling is possible. Note that the above discussion is
The speed was 80 km / h, but the air intake
Kinetic energy of the cooling air flow induced by
The vehicle speed is proportional to the square of the vehicle speed.
The higher the traveling speed, the better the ventilation effect of this ventilation system
Increases. On the other hand, when the vehicle travels to the right
As shown in FIG. 4, the traveling wind is generated by the air guide plate 42-c (under the floor).
After colliding with the step part of the skirt 13,
It is guided to the air intake 31. Air intake
The maximum flow velocity of the traveling wind (cooling air flow 50) guided to 31 is
The speed is about 20m / sec and the average velocity is about 6m.
Is more effective than when traveling to the left side of the page.
No. With the above-mentioned symmetrical channel structure
20 and 21 can be considered as examples of
It is. In FIG. 20, the running direction and the flat
Installed in the line, and determines the traveling direction of the vehicle using the wind pressure sensor
Open the damper in front of the vehicle, and
By closing the damper, the rear opening from the front opening
Form a duct that communicates with the blower. At the same time,
By driving the blower, the outside air is collected and heat exchanged
Heat is exchanged by the air blower 21 and exhausted from the blower 30-b to the outside.
I care. FIG. 21 shows that the lower surface is exposed to outside air.
Two open cavities under the floor of the vehicle
Utilizing the static pressure difference in the cavity caused by the blower 31-
a, 31-b guides the cooling airflow 50 to the heat exchanger 21
Good. In this case, the blower 31-a depends on the traveling direction of the vehicle.
And 31-b need to be switched. FIG. 22 further shows two air streams.
Intakes 31-a, 31-b and two air outlets 3
2-a and 32-b are provided, and the space between them is communicated by a duct.
The blower 30 and the heat exchanger 21 are arranged in the communication part. Sky
Each of the air intakes 31-a and 31-b has an inner side (as described above).
Damper 43-a configured to open only to the duct side),
 43-b, while air outlets 32-a,
 Conversely open only to the outside (outside air side) for 32-b
Dampers 43-c and 43-d are provided. Main equipment
According to the arrangement, the cooling airflow 50 is empty according to the traveling direction of the vehicle.
Air intake 31-a, blower 30, heat exchanger 21, exhaust
The order of the vents 32-b (when the vehicle travels to the left in the drawing),
Or air inlet 31-b, blower 30, heat exchange
21 and the exhaust port 32-a in order.
Flow), and blow air no matter which direction the vehicle travels.
The direction of the cooling airflow 50 flowing through the machine 21 is always the same.
FIG. 22 shows each case where the vehicle travels to the left in the drawing.
The opening / closing state of the damper and the flow of the cooling airflow 50 are shown.
You. In such a technique, as described above,
Movable to switch the operation of the fan according to the direction
The number of parts increases and the structure becomes complicated. Therefore, reliability
And the maintainability is impaired. further
Indicates that the direction of the cooling air flowing through the heat exchanger is constant.
In such cases, ducts and dampers for collecting and exhausting air
Two sets are required each. In this case, the channel structure is complicated
Is the same as above, but other problems
As a result, the cooling air
It is pointed out that the amount decreases. In addition, the channel itself
And space efficiency is poor.
Will be constrained. As described above, the air extraction device according to the present invention is applied to a vehicle.
Is moving forward or backward
It is confirmed that it has a wind collecting effect. In the present invention,
An important feature of the air extraction device is that the air guide plate 42-a and
And 42-c indicate that the vehicle moves forward and backward, respectively.
Directly receives the wind from either drive and takes in air.
It is configured to guide to the mouth. sand
That is, from this, a sufficient amount of energy can be obtained without the need for moving parts.
Flow can be ensured, and a smaller and simpler structure
With high reliability and low cost.
Wear. FIGS. 7 and 8 show a second embodiment of the present invention.
This will be described below. FIGS. 7 and 8 show the ventilation of the present embodiment.
Fig. 7 shows the detailed structure near the duct.
The running wind when the vehicle travels on the right is shown in FIG.
It shows the traveling wind when traveling. In this embodiment,
The installation position of the air intake duct is
It is the same as the case of the form. However, in this embodiment,
Is a blower (fan motor) 30 downstream of the heat exchanger 21.
I have it. As described above, in the present invention, air
Since the guiding section 40 itself has the effect of collecting outside air,
Even when both vehicles are running at high speed, the cooling air volume is
It doesn't drop than when you're driving
I do. The flow of the cooling airflow 50 is the same as that of the first embodiment.
The explanation is omitted because it is almost the same as the case, but in this case
Means that the backflow in the ventilation duct 33 is restricted by the blowing effect of the blower.
Disappear. Therefore, the heat exchanger 21 is almost uniformly cooled.
The airflow flows and the cooling capacity is lower than that of the first embodiment.
Is improved. Of course, to increase the capacity of the blower 30
It is also possible to further improve the cooling capacity. Real truth
An important point in the embodiment is that according to the present invention, the vehicle
Ventilation when traveling in both forward and reverse directions
The direction of the cooling airflow 50 flowing through the machine 30 is unchanged, and
Therefore, the blower rotation required in the conventional
There is no need to control the switching of the direction of rotation, drive / stop, etc. FIGS. 9 to 1 show a third embodiment of the present invention.
1 will be described. In the following embodiments, the description will be omitted.
For simplicity, if a blower is installed in the air intake duct
The present invention is applicable to vehicles with or without a blower.
At both high-speed running, it has the effect of collecting outside air. Ma
Also, regarding the position of the blower in the ventilation duct,
In the embodiment, only the case where the heat exchanger is provided on the downstream side is described.
As shown in the figure, when a blower is provided on the upstream side of the heat exchanger,
It should be noted that the same effect can be obtained. In the third embodiment, the cooling air flow is collected.
The wind duct 33 separates the wheel cabin 17 from other underfloor equipment.
Is installed in the vicinity of the partitioning plate 18. Partition board
Reference numeral 18 denotes dust generated from the bogie, such as rubber wheel debris.
Established to prevent entry into the control equipment of the vehicle.
Is placed. The installation position of this ventilation duct is under the floor scar
Do not contaminate the exterior of the
Noise, so there is less noise, which is
It is a convenient place. However, when the present invention is not applied,
According to a wind tunnel test simulating the vehicle and the air intake duct,
Running by the step part of the partition plate 18 and the underfloor skirt 13
Separation of the airflow occurs, and the cooling air flow is reduced to the original design flow rate (vehicle
(Cooling air volume when the vehicle is stopped)
It became. In particular, when the vehicle travels to the right in FIG.
The cooling airflow can not extract air at all, but rather the air intake
Leaked from In this case, the capacity of the blower is increased.
Although it is possible to secure the cooling air flow,
As such, such measures lead to increased costs
Not possible due to the layout of the actual equipment.
It turned out. The present invention has been designed to overcome this bottleneck.
It is something. FIG. 9 shows a blower according to this embodiment.
Appearance of underfloor skirt part of applied straddle type monorail vehicle
FIG. 10 and 11 show the vicinity of the air intake duct.
The details of the structure and the state of the cooling airflow while the vehicle is running
FIG. Lower surface and step portion of underfloor skirt 13
Is equipped with a punching plate 36 to take in outside air
Openings 35-a and 35-b are provided. Ma
The air guide plates 42-a, 42-
b, 42-c. Hereinafter, FIGS. 10 and 1
The flow of the cooling air while the vehicle is traveling will be described with reference to FIG. First, the vehicle travels to the left with respect to the page.
(FIG. 10), the lower surface of the underfloor skirt 13
The traveling wind flowing along the floor flows from the opening 35-b to the floor.
The air is introduced into the lower skirt 13 and is introduced into the air guide plate 42-d.
The air is further guided to the air intake 31. In this case,
Cut plate 18 acts as auxiliary air guide plate 42-c
Then, more air is guided into the air intake duct 33. one
On the other hand, when the vehicle runs to the right side of the paper (FIG. 11)
The traveling wind turned by the air guide plate 42-a.
Is an underfloor skirt from the opening 35-a of the underfloor skirt 13.
13 and is guided by the auxiliary air guide plate 42-b.
As a result, it is reliably guided into the ventilation duct 33. Air intake duct
The cooling airflow 50 introduced into the inside 33 is the same as that of the second embodiment described above.
The description is omitted because it is almost the same as that of the embodiment. still,
With the air intake device described in this embodiment, the vehicle moves forward and backward.
When traveling in either direction,
It is said that about 90% or more of the cooling air volume can be secured.
Has been confirmed by wind tunnel tests. FIG. 12 shows a fourth embodiment of the present invention.
16 will be described. FIG. 12 shows the present embodiment.
Under-floor scar of straddle type monorail vehicle to which air intake device is applied
FIG. Fig. 13 and Fig. 15 show the ventilation duct
Detailed structure in the vicinity and the state of cooling airflow while the vehicle is running
It is a figure showing a state. FIG. 14 and FIG.
In order to confirm the effect of the embodiment,
Prediction of the air flow near the air intake duct
The result. In the present embodiment, the ventilation duct 33
Is provided inside the underfloor skirt 13 at the center of the vehicle.
And the underfloor equipment boxes 20-a and 20-
b is arranged. Suction duct 33 and underfloor equipment box 2
0-a, 20-b and the underside of the underfloor skirt 13
There is a gap of about 300mm between
The air guide plates 42-a, 42-
-B, 42-d. FIG. 13 to FIG.
16 will be used to explain the flow of cooling air while the vehicle is traveling.
You. First, when the vehicle has traveled to the left side of the page.
(FIGS. 13 and 14) show the lower end of the underfloor equipment box 20-a.
Traveling wind flowing through the gap between the floor and the underfloor skirt 13
Is the direction of the air intake 33 by the air guide plate 42-a.
Turned to Further, the auxiliary air guide plate 42-
By the action of b, the air is reliably guided into the ventilation duct 33.
In the airflow simulation shown in FIG.
Since the blowing effect of the blower 30 is not considered,
The backflow area is partially formed in the
All traveling winds turned by 40-a are air intake ducts
33. That is, in this air sampling device
Is the effect of collecting outside air by the kinetic energy of the traveling wind
There is. Furthermore, if the blower 30 is added, the air in the heat exchanger section
The reverse flow also disappears, and the cooling performance is further improved (Fig. 1
3). When the vehicle travels to the right side of the drawing (FIG. 1)
5 and FIG. 16) show the lower end surface of the underfloor equipment box 20-b and the floor.
The traveling wind flowing through the gap between the lower skirts 13 is air
Turning to the air intake 33 by the guide plate 42-d
Then, it is guided into the air intake duct 33. As shown in FIG.
In the airflow simulation, the blower 30
Because the ventilation effect is not taken into account,
A partial backflow area is formed, but the air guide plate 40-d
Most of the traveling wind that has been turned into the air intake duct 33
Has been introduced. Furthermore, if a blower 30 is added, heat exchange
The backflow of the airflow in the container also disappears, further improving the cooling performance
(Fig. 15) This is the case where the above-mentioned vehicle runs on the left side of the paper.
Same as case. In this embodiment, one of the air guide plates is used.
One is in the shape of a 'H' and the air guide
The apex of the 'heave' plate faces the air intake 33
It is characterized by being arranged as follows. ‘To’
Each side is either forward or backward of the vehicle
Directly receives the traveling wind accompanying traveling in the
It has an effect of inducing the traveling wind to 31. Finally, a fifth embodiment of the present invention is shown in FIG.
7 to FIG. 19 will be described. FIG. 17 shows the present embodiment.
Of a straddle type monorail vehicle using a ventilation system in Japan
It is an external view of a lower skirt part. FIG. 18 and FIG.
Detailed structure near the wind duct and cooling while the vehicle is running
It is a figure which shows the state of an airflow. In the present embodiment,
The air intake duct 33 is provided in the underfloor skirt 13.
And the underfloor equipment boxes 20-a and 20-
b is arranged. Lower end face of floor box 20-b and floor
The running wind flows between the lower skirt 13 and the lower surface.
A gap of about 0 mm is provided.
Is provided with an air guide plate 42-d. Also, under the floor
The air is introduced from the vicinity of the partition plate 18 in the cart 13.
Smooth intake of running wind toward the outlet 31
An air guide plate 42-a for guiding to the mouth 31 is provided.
You. Hereinafter, the vehicle is traveling using FIGS. 18 and 19.
How the cooling air flows will be described. First, when the vehicle has traveled to the left side of the drawing.
(FIG. 18) shows the lower end surface of the underfloor equipment box 20-a and air induction.
Due to the action of the plate 42-a, the traveling wind is smooth without peeling
Is led to the air intake 33 and is guided into the air intake duct 33
Be guided. In addition, the traveling wind that was not collected is
Smooth downstream without peeling by the action of 42-d
Spilled to. On the other hand, when the vehicle runs to the right of the page
(FIG. 19) shows the lower end surface of the underfloor equipment box 20-b and the underfloor ska.
The traveling wind flowing through the gap between the ports 13 is an air guide plate.
42-d, it is turned to the direction of the air intake 33.
And is guided into the air intake duct 33. In addition, while being collected
Traveling wind is also separated by the action of the air guide plate 42-a.
It flows smoothly downstream without incident. So either
Cooling air is stopped even when the vehicle travels in the direction of
It increases in comparison with. Also in the present embodiment, the air induction
One of the plates is in the shape of a 'heave' and
The top of the letter “he” in the air guide plate is connected to the air intake 33.
The feature is that they are arranged to face each other. 'What'
Each side of the letter indicates whether the vehicle is moving forward or backward.
Directly receives the traveling wind accompanying traveling in one direction,
It has the function of guiding the traveling wind to the entrance 31. [0045] As described above, according to the present invention,
With a simple ventilation duct structure, mobile equipment can run at high speed.
Cooling without being affected by running wind
There is an effect that the amount of collected wind can be secured. Also,
Economical low cost due to simple construction
In addition, maintenance and inspection are easy and reliability is excellent.
There is fruit.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a cross-section of a monorail ventilation device according to a first embodiment of the present invention, and a cooling airflow when a vehicle travels to the left in the drawing. FIG. 2 is a diagram predicting, by numerical simulation, a cooling airflow when the vehicle travels to the left on the paper surface, with respect to the monorail ventilation device according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating a cross section of the monorail ventilation device according to the first embodiment of the present invention and a cooling airflow when the vehicle travels rightward on the paper. FIG. 4 is a diagram predicting, by numerical simulation, a cooling airflow when the vehicle travels rightward on the paper surface of the monorail ventilation device according to the first embodiment of the present invention. FIG. 5 is an external view of a monorail vehicle equipped with a ventilation device according to the first embodiment or the second embodiment of the present invention. FIG. 6 is a longitudinal sectional view of a monorail vehicle equipped with a ventilation device according to the first embodiment or the second embodiment of the present invention. FIG. 7 is a diagram illustrating a cross section of a monorail ventilation device according to a second embodiment of the present invention, and a cooling airflow when a vehicle travels to the left on the paper. FIG. 8 is a diagram illustrating a cross section of a monorail ventilation device according to a second embodiment of the present invention, and a cooling airflow when the vehicle travels rightward on the paper. FIG. 9 is an external view of a lower part of a floor of a monorail vehicle equipped with a ventilation device according to a third embodiment of the present invention. FIG. 10 is a diagram illustrating a cross-section of a monorail ventilation device according to a third embodiment of the present invention, and a cooling airflow when a vehicle travels to the left in the drawing. FIG. 11 is a diagram illustrating a cross-section of a monorail ventilation device according to a third embodiment of the present invention, and a cooling airflow when the vehicle travels rightward on the paper. FIG. 12 is an external view of a lower part of a floor of a monorail vehicle equipped with a ventilation device according to a fourth embodiment of the present invention. FIG. 13 is a diagram illustrating a cross section of a monorail ventilation device according to a fourth embodiment of the present invention, and a cooling airflow when the vehicle travels to the left in the drawing. FIG. 14 is a diagram predicting, by numerical simulation, a cooling airflow when a vehicle travels to the left in the drawing with respect to the monorail ventilation device according to the fourth embodiment of the present invention. FIG. 15 is a diagram illustrating a cross section of a monorail ventilation device according to a fourth embodiment of the present invention, and a cooling airflow when the vehicle travels rightward on the paper. FIG. 16 is a diagram predicting, by numerical simulation, a cooling airflow when a vehicle travels to the right in the drawing with respect to the monorail ventilation device according to the fourth embodiment of the present invention. FIG. 17 is an external view of a lower part of a floor of a monorail vehicle equipped with a ventilation device according to a fifth embodiment of the present invention. FIG. 18 is a diagram illustrating a cross-section of a monorail ventilation device according to a fifth embodiment of the present invention and a cooling airflow when the vehicle travels to the left on the paper. FIG. 19 is a diagram illustrating a cross-section of a monorail ventilation device according to a fifth embodiment of the present invention and a cooling airflow when the vehicle travels rightward on the paper. FIG. 20 is a cross-sectional view of a conventional air extraction device for mobile equipment. FIG. 21 is a cross-sectional view of a conventional air extraction device for mobile equipment. FIG. 22 is a horizontal sectional view of a conventional air extraction device for mobile equipment. [Description of Signs] 1 ... rail (girder), 10 ... monorail vehicle, 1
DESCRIPTION OF SYMBOLS 1 ... Body, 12 ... Floor of body, 13 ... Skirt under floor, 14 ... Main wheel, 15 ... Auxiliary wheel, 16
... Truck frame, 17 ... Wheel room, 18, 18-a,
18-b: Partition plate, 19: Wheel cover, 20,
20-a, 20-b: Underfloor equipment box, 21: Heat exchanger, 22: Wind pressure sensor, 30, 30-a, 30-b
... Blower, 31, 31-a, 31-b ... Air intake, 32, 32-a, 32-b ... Air exhaust, 3
3, 33-a, 33-b ... air intake duct, 34, 34-
a, 3-4-b ... exhaust duct, 35-a, 35-b ...
・ Skirt opening, 36 ・ ・ ・ Punching metal, 37
... Support, 40, 40-a, 40-b ... Air guiding part, 41, 41-a, 41-b ... Air exhaust part, 42-
a, 42-b, 42-c, 42-d ... air guide plate, 4
3-a, 43-b, 43-c, 43-d ... damper, 44
-a, 44-b, 44-c, 44-d: stopper, 45
... support, 50 ... cooling air flow (running wind).

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Nobuo Fujieda 502 Kandate-cho, Tsuchiura-city, Ibaraki Pref.Hitachi, Ltd.Mechanical Research Laboratory Co., Ltd. In-house (72) Inventor Masafumi Mitani 832-2 Horiguchi, Hitachinaka, Ibaraki Pref.Hitachi Techno Engineering Co., Ltd.Mito Plant (72) Inventor Masahiro Matsuura 1070 Momo, Hitachinaka-shi, Ibaraki Hitachi, Ltd.Mito Plant (72) Inventor Hisashi Kondo 1070 Ma, Hitachinaka City, Ibaraki Pref.Hitachi, Ltd.Mito Plant (72) Inventor ▲ Abe ▼ Shinichi Matsu 794, Higashi-Toyoi, Kazamatsu, Yamaguchi Prefecture Hitachi, Ltd.Kasato Plant, Hitachi, Ltd. (56) References JP-A-7-228249 (JP, A) JP-A-8-85455 (J JP-A-4-38264 (JP, A) JP-A-52-76008 (JP, U) JP-A-62-16554 (JP, U) JP-A-62-40067 (JP, U) JP-A 52-31106 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B61D 27/00 B61B 13/06 B61C 17/00

Claims (1)

(57) Claims 1. An underfloor equipment box suspended near the center of a vehicle, an underfloor skirt covering the underfloor equipment box, and a space between the underfloor skirt and the underfloor equipment box In a ventilation device for a mobile device including a formed ventilation duct and a blower attached in the ventilation duct, an air intake port of the ventilation duct is provided on a lower surface near a depression of the underfloor skirt, and A first air guide plate and a second air guide plate form a guide portion for guiding a traveling wind from the travel to the air intake port.
And a second air guide plate for guiding traveling wind to the air intake in both directions of forward and backward movement of the vehicle.