JPH06144222A - Ventilating device for high-speed vehicle - Google Patents

Abstract

PURPOSE:To obviate a ventilating fan or to realize tower output and to save power source capacity on car by utilizing a running wind. CONSTITUTION:In a ventilating device for high-speed vehicle which exhausts introduced outside air from an exhaust port through a heat exchanger, an air suction port 3 is provided in the neighborhood of the tip end of the outer face of the car whose static pressure becomes high during high-speed running, that is, a bogie fairing 4, an exhaust port 5 is provided at the outer face of the car whose static pressure becomes low, a foreign-substance removing device such as a trap is mounted at the air suction port and a vane whose air blowing direction is changeable is provided at the exhaust port.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to high-speed vehicle air conditioning, exhaust heat,
The present invention relates to a ventilation device for a high-speed vehicle that can cool equipment.

[0002]

2. Description of the Related Art Referring to FIG. 4, the ventilation path of a conventional high-speed vehicle ventilation device is shown. Reference numeral 20 is an underfloor equipment box of a vehicle body 21. Outside air 23 is introduced from a side surface 22 of the box 20, and inside the box 20 is introduced. It passes through the heat exchanger 24 and is blown out from the lower surface 26 by the large capacity fan 25 in the box 20. Further, the fan 25 is always operated with the rated power while the vehicle is stopped or running.

[0003]

In the conventional ventilation system for high-speed vehicles, since no running wind is used, it is necessary to keep a large capacity fan for ventilation running at all times, and therefore a large on-board power supply capacity. There was a problem that required. Moreover, in the past, it was designed without understanding the action of the running wind, so the ventilation performance may deteriorate during high-speed running, and rain, dust, and
Since there was a risk that metal powder etc. would directly enter the heat exchanger,
There was a problem that performance deterioration due to clogging of the heat exchanger occurred in a short period of time. SUMMARY OF THE INVENTION The present invention provides a ventilation device that utilizes the pressure difference between the inlet and the outlet of ventilation during high-speed traveling, and aims to solve the above-mentioned conventional problems.

[0004]

For this reason, the present invention provides a ventilation device for a high-speed vehicle in which the introduced outside air is discharged from a discharge port through a heat exchanger, and the air is applied to the outer surface of the vehicle body which has a high static pressure during high-speed traveling. In addition to providing an intake port, an exhaust port is provided on the outer surface of the vehicle body where the static pressure is low, a foreign matter removing device is attached to the air intake port, and a variable member in the air blowing direction is provided at the exhaust port. This is a means for solving the problem.

[0005]

The high-speed airflow introduced from the air intake on the outer surface of the vehicle body where a high static pressure is obtained during traveling is removed by foreign matter removing device, so that damage or clogging due to foreign matter in the heat exchanger may occur. Performance degradation can be prevented. That is, the clean air from which foreign matter has been removed flows toward the discharge port having a low pressure, and heat is exchanged by the heat exchanger on the way. Further, the variable member in the blowing direction of the discharge port changes its direction depending on the traveling direction, and it is possible to prevent air from staying in the lower portion of the vehicle body. As described above, in the present invention, since the traveling wind is used, it is possible to eliminate the need for a ventilation fan and to reduce the output, and it is possible to save the onboard power supply capacity.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments of the drawings. FIGS. 1 to 3 show the embodiments of the present invention. In addition, the drawing shows the case of a linear vehicle that adopts a connecting carriage system. In FIG. 1, reference numeral 1 denotes an air conditioner outside heat exchanger, which is provided on one side portion of a vehicle body outer plate opening door 8 provided on the left and right of the end face of the vehicle body 9. Reference numeral 2 is a heat exchanger for an on-vehicle refrigerator, which is installed on the lower surface of the bogie of the vehicle body 9. Reference numeral 3 is an air intake located near the tip of the vehicle bogie fairing 4, and this portion is a portion where a high static pressure is generated during high-speed traveling. This intake port 3 is located on the tip side in the vehicle advancing direction for introducing air, and the air passage of the intake port 3 immediately after the introduction of air is a U-turn or a right-angled air passage. A trap is attached to the road to remove invading rain, dust, foreign matter, etc. by centrifugal force. 5 is a suction door,
A vane 7 is provided on the bottom surface of the onboard refrigerator heat exchanger 2 and the bottom surface of the car body fairing 4, both of which are provided with a vane 7 for positively generating a negative pressure. Can be reversed, and by tilting and flowing in the front-back direction, air is prevented from staying in the lower part of the carriage. The suction door 5 on the bottom of the fairing 4 is closed at the front and open at the rear,
The opening and closing are reversed depending on the direction of travel.
Reference numeral 8 denotes a vehicle body outer plate opening door on the upper portion of the vehicle body 9 that is opened greatly only when the vehicle is stopped. Further, the vehicle body bogie fairing 4 covers the vehicle body 9, the bogie, and the bottom surface of the bogie, and a large opening is eliminated except for the ventilation port. Reference numeral 6 is a resistance plate that is positively provided between the car body and the trolley at the lower part of the gabled face, and is arranged to optimize the flow distribution of the heat exchanger 1 outside the air conditioning room and the heat exchanger 2 for the on-vehicle refrigerator. .

The operation will be described below. The air intake 3 is located near the tip of the vehicle body fairing 4, and a high static pressure is obtained during traveling. The high-speed airflow introduced from the intake port 3 flows between the vehicle body 9 and the fairing 4 after the foreign substances are removed by the trap, and is gradually decelerated to increase the static pressure. Then, this introduced air enters the space between the vehicle body 9 and the vehicle from the terminal of the vehicle body fairing 4, and the pressure loss to the suction door 5 and the flow rate according to the negative pressure of the suction door 5 cause the heat exchangers 1 and 2 to flow. Will be distributed to. Further, the heat exchanger 1 outside the air-conditioning room takes in outside air from the outer plate of the vehicle body 9 opened by the fan, and the air passing through the heat exchanger 1 passes through the end face of the adjacent vehicle and passes through the vane 7 at the opening to the outside. Spill to.

On the other hand, in the case of the heat exchanger 2 for the on-vehicle refrigerator, the outside air is introduced from the vehicle body opening on the side opposite to that for the air conditioning, and the outside air is introduced by the fan above the same heat exchanger 2 into the same heat exchanger. It flows out through 2 downwards. The fans of the heat exchangers 1 and 2 and the vehicle body outer plate opening door 8 are interlocked with each other, and operate when stopped and cooling air cannot be obtained by the ram pressure. If sufficient ram pressure is not obtained during acceleration, only the fan will operate automatically. Further, the vehicle body outer plate opening door 8 is designed to be opened and closed only when the vehicle is stopped, and the fan is designed to operate only at a speed of 100 to 200 km / h or less. Further, the fan is automatically turned on / off due to the heat exchange performance, and is automatically turned on when the cooling wind due to the preceding wind when the vehicle is stopped disappears.
If the preceding wind is insufficient during acceleration / deceleration, the same fan control turns it on as necessary.

[0009]

As described in detail above, according to the present invention, since the air intake port is provided on the outer surface of the vehicle body which has a high static pressure during high speed traveling, the outside air is introduced at high speed during traveling by utilizing the ram pressure.
In addition, because a foreign matter removing device is installed at the air intake, rain, dust, foreign matter, etc. in the introduced air are separated and removed by centrifugal force immediately after introduction, and damage to the heat exchanger due to foreign matter and deterioration of performance due to clogging. Can be prevented. Further, the clean air from which the foreign matter has been removed flows toward the discharge port having a low pressure, and heat is exchanged by the heat exchanger in the middle thereof. Also, since the variable member for the air blowing direction is provided, the inclination can be reversed according to the traveling direction, and if the negative pressure at the exhaust port is insufficient, the variable member can be positively pushed out by protruding from the outer plate of the vehicle body. Pressure can be generated. When the vehicle is stopped, the door can be opened so as to enlarge the opening area of the vehicle body outer plate in order to minimize the pressure loss in the ventilation passage. Therefore, in the present invention, by using traveling wind, it becomes possible to eliminate the need for a ventilation fan or to reduce the output, and it is possible to save the onboard power supply capacity.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a flow direction of air in a ventilation device for a high-speed vehicle showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a flow of air in a direction different from that in FIG.

FIG. 3 is an explanatory view showing a direction of air flow different from those in FIGS. 1 and 2;

FIG. 4 is a vertical cross-sectional view showing a conventional air supply / exhaust structure for a high-speed vehicle.

[Explanation of symbols]

 1 Air Conditioner Outside Heat Exchanger 2 Vehicle-mounted Refrigerator Heat Exchanger 3 Air Intake 4 Body Carriage Fairing 5 Suction Door 6 Resistance Plate 7 Vanes 8 Body Outer Plate Opening Door 9 Body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shiro Hosaka 1-4-1 Meieki, Nakamura-ku, Nagoya City Tokai Passenger Railway Co., Ltd.

Claims (1)

[Claims] 1. A ventilation device for a high-speed vehicle, which discharges the introduced outside air from a discharge port through a heat exchanger, while providing an air intake port on the outer surface of the vehicle body, which has a high static pressure during high-speed traveling, and has a low static pressure. A ventilation device for a high-speed vehicle, characterized in that an exhaust port is provided on the outer surface of the vehicle body, a foreign matter removing device is attached to the air intake port, and a variable member in the air blowing direction is provided at the exhaust port.