JPH0858584A - Air conditioner for railway rolling stock - Google Patents

Abstract

PURPOSE: To effectively carry out definite winding of an automatic winding type roll filter and running operation of a ventilating device by an emergency power source, when operation of an air conditioner by a main power source is stopped (at emergency). CONSTITUTION: In an air conditioner constituted of a ventilating blower 3, an automatic winding type roll filter 6, and a power source device (converter), by command operation of one time of a running operation switch 12, the roll filter 6 is wound up by a definite quantity and the ventilating blower 3 is continuously run, and after recovery of a main power source, the air conditioner is automatically changed to the main power source line 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railcar air conditioner, and more particularly to a railcar air conditioner suitable for effectively controlling the operation of a ventilation fan during a main power failure (emergency). It is a thing.

[0002]

2. Description of the Related Art Conventionally, a normal operation of a railroad car, a monorail or the like is performed by operating an air conditioner or a device dedicated to ventilation, and in any case, when a main power failure occurs (emergency). It stopped its operation and relied on natural ventilation such as opening windows and doors for car ventilation.

A control system for a vehicle air conditioner is disclosed in, for example, Japanese Patent Application Laid-Open No. 57-047193, and a vehicle ventilation system is described in detail in Japanese Patent Application Laid-Open No. 60-67213.

[0004]

However, in the case of these methods, it is difficult to properly ventilate a fixed window vehicle or the like when the main power supply is stopped (emergency), and it is necessary to consider personal protection. It was not done and was a problem.

An object of the present invention is to provide an air conditioner for a railway vehicle which can maintain a comfortable room by solving the above-mentioned problems and effectively performing ventilation control.

[0006]

The above object can be achieved by providing an emergency power supply device (converter) and forcibly controlling the operation of the ventilation fan.

[0007]

With a power supply device (converter) and a control circuit provided for emergency, a series of operations such as constant winding of an automatic winding type roll filter and operation of a ventilation blower can be sequentially and effectively performed by one command operation. In addition, it is possible to ventilate the inside of the vehicle by performing it completely.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram of the entire air conditioner, and FIG. 2 is a sectional view thereof. During normal operation, the ventilation blower 3 and the blower 4 inside the air conditioner are operated by the operation of the air conditioner 2 provided on the roof portion of the vehicle body 1, and the air (cool / warm air) sent from the air conditioner 2 including fresh air is cooled. , The air is discharged into the room through the ventilation duct 5 provided in the ceiling and circulates in the room, part of the air is passed through the automatic roll filter 6 to the air conditioner 2 side, and part of the air is exhausted 7. It is discharged to the outside of the vehicle and has a structure that performs air conditioning and ventilation inside the vehicle.

Here, when the power supply from the train line is cut off and the air conditioner 2 stops its operation, the ventilation blower 3 and the air blower 4 inside the air conditioner also stop, so that air conditioning / ventilation inside the vehicle is stopped. Fig. 3 shows a ventilation system in an emergency, and Fig. 4 shows a cross-sectional view of the ventilation system.
Activates and blows the sucked fresh air into the room, but due to the influence of the blower 4 in the air conditioner and the duct resistance of the ventilation duct 5, most of it is discharged into the room in the form of reverse flow through the roll filter 6. As a result, dust that has adhered to the roll filter 6 during normal operation is scattered inside the vehicle.

Next, the electric circuit of the air conditioner according to the present invention will be described with reference to FIG. On condition that the circuit of the control power supply line 8 is supplied with power from the additional power supply (storage battery), the voltage detection relay 23 is demagnetized when the main power supply line 9 fails, and the interlocking contact 23a opens to open the time delay relay 24. By demagnetizing and opening the interlocking contact 24a, the ventilation blower contactor 25 and the roll filter contactor 26 are released, the respective interlocking contacts 25a and 26a open their circuits, and the control circuit is released from the main power supply. Ventilated blower 3
Operation of the power supply and the energization of the roll filter 6 are stopped, the contactor 10 for the power supply device is demagnetized, and its interlocking contact 10
Power supply device (converter) by closing the circuit of b
11 is pressurized by an additional power source (storage battery) to operate.

The operation switch 12 is a spring return type operation switch for operating the ventilation blower 3. When the contact is closed, the operation switch 13 for stopping the ventilation blower and the relay 1 are provided.
The relay 15 is excited via the interlocking contact 14b of No. 4.
The relay 15 is self-held by the interlocking contact 15a-1, closes the interlocking contact 15a-2, pressurizes the simultaneous activation line 16 of the ventilation blower 3, and at the same time the indicator lamp 1
7 is lit up and the simultaneous activation display is displayed. This allows relay 1
8 is excited, the interlocking contact 18a-1 is closed, and the contact 1
The contactor 20 is excited via 9b, and its interlocking contact 20a
Is closed, and the roll filter 6 is pressurized by the power supply device (transducer) 11 that is automatically operating first, and the roll filter 6 starts winding the filter. By exciting the relay 18, the circuit of the interlocking contact 18a-2 is closed. As a result, the delay operation type time delay relay 19 and the contactor 20 are pressurized to start timing, and after a certain period of time, the interlocking contact 19b is opened, the contactor 20 is demagnetized, and the interlocking contact 20a opens its circuit. Since it is opened, the winding of the roll filter 6 is stopped. or,
The relay 18 simultaneously closes the circuit of the interlocking contact 18a-3. As a result, the time delay relay 21 has started timing,
After a certain period of time, the circuit of the interlocking contact 21a is closed, the contactor 22 is excited, the interlocking contact 22a is closed, power is supplied from the power supply device (converter) 11, and the ventilation blower 3 starts continuous operation. Here, when the operation of the ventilation blower 3 is stopped, the operation switch 13 is operated and the relay 15 is released to release the simultaneous activation line 16 and stop the operation of the ventilation blower 3.

Next, when the train line is restored and the main power supply line 9 is pressurized, the power supply device contactor 10 is excited, its interlocking contact 10b is opened, and the operation of the power supply device (converter) 11 is stopped. . Further, the relay 14 for the command operation circuit is also excited, and when the circuit of the interlocking contact 14b is opened, the relay 15 is demagnetized,
Therefore, the simultaneous activation line 16 is released in the same manner as when the operation switch 13 for stopping the ventilation blower is operated, all the control circuits when the main power supply is stopped are released, and the simultaneous activation command indicator lamp 17 is released.
Turns off. Further, when the main power supply line 9 is pressurized, the voltage detecting relay 23 is excited, the interlocking contact 23a is closed, the time delay relay 24 is pressurized, and after a certain period of time, the interlocking contact 24a closes the circuit, Contactor for ventilation blower 2
5 and the roll filter contactor 26 are excited, and the interlocking contacts 25a and 26a are closed to control the operation of the ventilation fan 3 by the main power source and the energization of the automatic winding roll filter 6.

According to the present embodiment, the control circuit that switches from the power supply device 11 to the main power supply line 9 instantly and can prevent the adverse effect on the ventilation fan 3 and switches to the main power supply after a certain period of time elapses. Therefore, there is an effect that ventilation control can be performed in an emergency.

[0014]

As described above, according to the present invention, when the main power supply fails, the emergency power supply device automatically operates, and the automatic winding-type roll filter can be constantly wound by a single command operation. Also, the operation of the ventilation blower can be controlled without scattering dust, and it can be automatically switched to the operation by the main power supply after the main power supply is restored, so no troublesome operation is required, and in an emergency. Ventilation operation can be performed effectively.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of an air conditioner according to the present invention.

FIG. 2 is a cross-sectional view of FIG.

FIG. 3 is a ventilation system diagram in an emergency.

4 is a cross-sectional view of FIG.

FIG. 5 is an electric circuit diagram of an embodiment of an air conditioner according to the present invention.

[Explanation of symbols]

1 ... Car body, 2 ... Air conditioner, 3 ... Ventilation blower, 4 ... Air conditioner blower, 5, 5 '... Ventilation duct, 6 ... Automatic roll filter, 7, 7' ... Exhaust port, 8 ... Control power line , 9
... main power supply line, 10 ... contactor for power supply device, 11 ... power supply device (converter), 12 ... operation switch, 13 ... operation switch, 15 ... relays 1, 16 ... simultaneous activation line, 17 ...
Indicator lamp, 18 ... Relay 2,19 ... Time relay 1,20 ...
Contactor, 21 ... Timed relay, 22 ... Contactor, 23 ... Voltage detection relay, 24 ... Timed relay, 25 ... Ventilation blower contactor, 26 ... Roll filter contactor.

Claims (2)

[Claims] 1. An air conditioner for a railway vehicle having a ventilation blower, an automatic wind-up roll filter, and a power supply (converter), which supplies power to an additional power supply (storage battery) during a main power failure (emergency). The power supply device is automatically activated, and a command to operate the ventilation blower is issued once to issue a winding command for the automatic roll-up type roll filter, and the roll filter winding command circuit can be set after a certain period of time by controlling the time circuit that can be set arbitrarily. And then configure the circuit for ventilation blower operation,
An air conditioner for a rail vehicle, comprising a control circuit capable of sequentially performing a series of operations. 2. The railcar air conditioner according to claim 1, wherein when the main power is restored, a series of circuits for emergency (power outage) operation is released, and a time circuit that can be arbitrarily set is controlled. An air conditioner for a railway vehicle, comprising a control circuit capable of energizing an automatic winding type roll filter by a main power source and operating a ventilation blower after a lapse of a certain time.