KR0162962B1 - Apparatus for controlling airconditioner and heater of railcar - Google Patents

Abstract

The present invention provides a cooling and heating selection unit (2) for outputting a mode selection signal according to the driver's operation; An atmospheric temperature sensor 4 which detects the atmospheric temperature and outputs an atmospheric temperature detection signal if the atmospheric temperature is higher than the reference temperature; First, second and third room temperature sensor (6, 8, 10) to detect the temperature inside the room and output the first, second and third temperature detection signals, respectively, if the room temperature is above the first, second and third reference temperature ; When the automatic mode signal is input from the air conditioner / heat selector 2, one of the total heating, 2/3 heating, and 1/3 heating is selected according to whether the atmospheric temperature sensing signal and the first temperature sensing signal are input. A heating control unit 20 to operate; And when the automatic mode signal is input from the air conditioning unit 2, the one of the pre-cooling, semi-cooling, and fan modes according to whether the atmospheric temperature sensing signal, the second temperature sensing signal, and the third temperature sensing signal are input. It is configured to include a cooling control unit 40 to operate by selecting, by detecting the air temperature and the room temperature of the railroad car and intermittently control the air conditioner or heating device according to the detected temperature to maintain the room temperature of the railroad car optimally It can be effected.

Description

Heating and cooling control device of railway vehicle

1 is a schematic configuration diagram of a cooling and heating control device for a railway vehicle according to the present invention.

2 is a circuit diagram of an embodiment of a heating and cooling control device for a railway vehicle according to the present invention.

* Explanation of symbols for the main parts of the drawings

2: Air conditioning unit 4: Atmospheric temperature sensor

6: 1st room temperature sensor 8: 2nd room temperature sensor

10: third room temperature sensor 12: first heater

14: second heater 20: heating control unit

22: evaporation fan 24: first compressor

26: first cooling fan 28: second compressor

30: second cooling fan 40: cooling control unit

The present invention relates to a cooling and heating control device for a railway vehicle, in particular, by detecting the air temperature and the room temperature of the railway vehicle to automatically operate the air conditioner or heating device according to the detected temperature to maintain the room temperature of the railway vehicle optimally. It relates to a heating and cooling control device of a railway vehicle.

In general, two air conditioners are installed on the roof of each cabin and a heating device is installed on the floor of each cabin.

Each air conditioner is composed of one evaporator fan, two compressors, and two condenser fans, each of which comprises a plurality of 700W heaters and 350W heaters.

As such, the conventional air conditioning controller for controlling the air conditioner and heating device provided in the railway vehicle has seven modes of 1/3 heating, 2/3 heating, full heating, fan, semi-cooling, pre-cooling and stop. In addition, the driver selects one of the seven modes so as to control the cabin condition of the railway vehicle.

For example, when the driver selects the front heating mode, power is applied to both the 700W heater and the 350W heater provided in each cabin to simultaneously operate the 700W heater and the 350W heater.

When the 2/3 heating mode is selected, only power is applied to the 700W heater provided in each room, and when the 1/3 heating mode is selected, only the 350W heater is supplied with power to operate only one of them.

If the Han mode is selected, power is supplied only to the evaporating fans of the air conditioners installed on the roof of each room. If the semi-cooling mode is selected, power is supplied to the evaporation fan, one compressor, and one cooling fan among the air conditioners on the roof of each room. When the pre-cooling mode is selected, power is applied to all the cooling devices to operate.

However, the conventional heating and cooling control device of a railway vehicle as described above has a problem that a driver cannot accurately know the temperature inside a cabin, and thus cannot provide adequate air conditioning service according to the temperature change in the cabin during the operation of the railway vehicle.

In particular, when the driver forgets the operation of the air-conditioning selection switch, a phenomenon such as overheating or overcooling occurs, which causes a great inconvenience to the passenger.

The present invention has been made in order to solve the above conventional problems, by detecting the air temperature and the room temperature of the railroad car to automatically operate the air conditioner or heating device according to the detected temperature to optimize the room temperature of the railroad car The purpose is to provide a heating and cooling control device for railway vehicles that can be maintained by.

In order to achieve the above object, the heating and cooling control apparatus for a railway vehicle according to the present invention controls the heating and cooling apparatus of the railway vehicle intermittently by using a relay to heat the inside of the cabin, heating 2/3, 1 / 3. A circuit for heating and cooling in one of three modes of heating, automatic, fan, semi-cooling, and pre-cooling, the circuit comprising: a heating and cooling selecting unit (2) for outputting a mode selection signal according to a driver's operation; An atmospheric temperature sensor 4 which detects the atmospheric temperature and outputs an atmospheric temperature detection signal if the atmospheric temperature is higher than the reference temperature; A first room temperature sensor 6 which detects a temperature inside the room and outputs a first temperature detection signal if the room temperature is equal to or greater than a first reference temperature; A second room temperature sensor (8) that detects a temperature inside the room and outputs a second temperature detection signal if the room temperature is higher than a second reference temperature higher than the first reference temperature; A third room temperature sensor 10 which detects a temperature inside the room and outputs a third temperature detection signal when the room temperature is higher than or equal to the third reference temperature higher than the second reference temperature; When the electric heating, 2/3 heating or 1/3 heating mode signal is inputted from the air conditioning selecting unit 2, it operates in the corresponding mode, and when the automatic mode signal is inputted, the atmospheric temperature detection signal and the first temperature detection signal A heating control unit 20 which operates by selecting one of the entire heating, 2/3 heating, and 1/3 heating according to an input or not; And when the pre-cooling, semi-cooling, or fan mode signal is input from the air conditioning unit 2, and operates in a thawing mode, and when the automatic mode signal is input, the standby temperature detection signal, the second temperature detection signal, and the third temperature detection signal. It characterized in that it comprises a cooling control unit 40 for operating by selecting one of the pre-cooled, semi-cooled, fan according to whether the signal input.

When the automatic mode signal is input from the air conditioner / heat selector 2, one of the total heating, 2/3 heating, and 1/3 heating is selected according to whether the atmospheric temperature detection signal and the first temperature detection signal are input. A heating control unit 20 to operate; And when the automatic mode signal is input from the air conditioner / heat selector 2, one of the pre-cooling, semi-cooling, and fan modes according to whether the standby temperature detection signal, the second temperature detection signal, and the third temperature detection signal are input. It characterized in that it comprises a cooling control unit 40 to operate by selecting.

When the automatic mode signal is input and the standby temperature detection signal and the first temperature detection signal are not input, the heating control unit 20 operates the heating device in a full heating mode, and the automatic mode signal and the standby temperature detection signal. Is configured to operate the heating device in a 2/3 heating mode when the first temperature sensing signal is not inputted; The cooling control unit 40 is the automatic mode signal and the second temperature detection signal is input and the standby temperature detection signal is not input, or the automatic mode signal and the standby temperature detection signal is input and the second temperature detection signal is If no input is made, the cooling device is operated in a fan mode, and when the automatic mode signal, the standby temperature detection signal and the second temperature detection signal are input, and the third temperature detection signal is not input, the cooling device is operated in the semi-cooling mode. Preferably, when the automatic mode signal, the atmospheric temperature detection signal and the third temperature detection signal are input, the cooling device is configured to operate in the pre-cooling mode.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a heating and cooling control apparatus for a railway vehicle according to the present invention, wherein the heating and cooling control apparatus for the railway vehicle includes an air conditioning unit (2), an atmospheric temperature sensor (4), and a first, second and third cabin. It is configured to include a temperature sensor (6, 8, 10), the heating control unit 20 and the cooling control unit (40).

The air conditioning unit 2 outputs a mode selection signal (full heating, 2/3 heating, 1/3 heating, automatic, fan, semi-cooling or pre-cooling mode signal) according to the driver's operation.

The air temperature sensor 4 detects the air temperature and outputs an air temperature detection signal when the air temperature is higher than the reference temperature.

The first cabin temperature sensor 6 detects the cabin temperature of the railroad car and outputs a first temperature detection signal when the cabin temperature is greater than or equal to the first reference temperature, and the second cabin temperature sensor 8 is railroad. Detects the cabin temperature of the vehicle and outputs a second temperature detection signal if the cabin temperature is higher than the second reference temperature higher than the first reference temperature, and the third cabin temperature sensor 10 detects the cabin temperature of the railway vehicle. When the temperature of the room is greater than or equal to the third reference temperature higher than the second reference temperature, the third temperature detection signal is output.

The heating control unit 20 receives full heating, 2/3 heating, and 1/3 heating mode signals from the air conditioner selection unit 2, respectively, so that the first heater 12, the second heater 14, and the first heater ( 12) while operating the second heater 14, and when the automatic mode signal is input and the standby temperature detection signal and the first temperature detection signal are not input, the first heater 12 and the second heater 14 are turned off. When operating simultaneously to implement the full heating mode, and when the automatic mode signal and the standby temperature detection signal is input and the first temperature detection signal is not input, only the first heater 12 is operated to implement the 2/3 heating mode.

The cooling control unit 40 operates the evaporation fan 22 when the fan mode signal is input from the air conditioner selection unit 2, and the evaporation fan 22, the first compressor 24, and the first compressor when the semi-cooling mode signal is input. Each of the cooling fans 26 is operated, and when the pre-cooling mode signal is input, the evaporation fan 22, the first compressor 24, the first cooling fan 26, the second compressor 28, and the second cooling fan 30 are operated. ), While the automatic mode signal and the second temperature sensing signal are input and the standby temperature sensing signal is not input, or the automatic mode signal and the standby temperature sensing signal are input and the second temperature sensing signal is not input. If the fan mode is implemented by operating the evaporation fan 22, and the auto mode signal, the standby temperature detection signal and the second temperature detection signal is input and the third temperature detection signal is not input, the evaporation fan 22, By operating the first compressor 24 and the first cooling fan 26, respectively, to implement a semi-cooled mode, When the automatic mode signal, the atmospheric temperature sensing signal and the third temperature sensing signal are input, the evaporation fan 22, the first compressor 24, the first cooling fan 26, the second compressor 28 and the second cooling fan ( 30) is operated to implement the full cooling mode.

2 is a circuit diagram of an embodiment of a heating and cooling control apparatus for a railway vehicle according to the present invention, and includes seven manual and automatic modes, such as 1/3 heating, 2/3 heating, total heating, fan, semi-cooling, pre-cooling, and stopping. On the other hand, when the automatic mode is selected, if the air temperature is less than 15 ° C (atmospheric reference temperature) and the room temperature is less than 20 ° C (the first reference temperature of the room), the electric heating mode is implemented and the air temperature is 15 If the room temperature is lower than 20 ℃ and the room temperature is lower than 20 ℃, 2/3 heating mode is implemented.The air temperature is lower than 15 ℃, and the room temperature is higher than 26 ℃ (second reference temperature of the room) or the air temperature is higher than 15 ℃. In addition, the fan mode is implemented when the room temperature is above 20 ° C and below 26 ° C. When the room temperature is above 15 ° C and the room temperature is above 27.2 ° C (third reference temperature of the room), the pre-cooling mode is implemented. .

That is, when the driver selects the fan mode, the power is supplied to the 39 communication line.-Unit cooler relay (UCR1) excitation-Unit cooler relay contact (UCR1) short circuit-Magnetic contactor (MK31) Excitation-Magnetic contactor (MK31) The power is supplied to the evaporator fan (EF) due to a short circuit.

Then, when the driver selects the half-cooled mode and selects the fan mode, the power is supplied to the evaporator fan (EF), while the power is supplied to the communication line 40-unit cooler relay (UCR2) excitation-unit cooler relay contact ( UCR2) Short circuit-Unit cooler time device (UDT1) Excitation-Unit time device contact (UDT1) Short circuit-Magnetic contactor (MK11) Excitation-Magnetic contactor (MK11) is short-circuited and the first compressor (CP1) and the first cooling Power is supplied to the fan CF1.

When the driver selects the pre-cooling mode, power is supplied to the evaporation fan EF, the first compressor CP1, and the first cooling fan CF1 as in the case of selecting the semi-cooling mode. Power supply-Unit cooler relay (UCR3) Excitation-Unit cooler relay contact (UCR3) Short circuit-Unit cooler time device (UDT2) Excitation-Unit time device contact (UDT2) Short circuit-Magnetic contactor (MK21) Excitation-Magnetic contactor The MK21 is short-circuited and power is supplied to the second compressor CP2 and the second cooling fan CF2.

And if the driver selects 1/3 heating mode, the power is supplied to the No. 98 line-Room Heater Relay (RheR2) Excitation-Room Heater Relay Contact (RheR2) Short Circuit-Room Heater Contactor (RheK2) Excitation-Room Heater Contact (RheK2) is short-circuited and the power is supplied to the 350W heater.

If the driver selects 2/3 heating mode, the power is supplied to 99.-Room Heater Relay (RheR1) Excitation-Room Heater Relay Contact (RheR1) Short Circuit-Room Heater Contactor (RheK1) Excitation-Room Heater Contactor The contact RheK1 is short-circuited and the power is supplied to the 700W heater.

When the driver selects the full heating mode, power is supplied to the 98 communication line and the 99 communication line to supply power to both the 350W heater and the 700W heater.

Meanwhile, when the driver selects the automatic mode, power is automatically supplied to the air conditioner and the heating device according to the air temperature and the room temperature.

For example, if the room temperature is less than 15 ℃, the evaporation fan is operated when the room temperature is above 26 ℃, if the room temperature is less than 20 ℃ while operating 700W heater and 350W heater at the same time, while the ambient temperature is above 15 ℃ If the room temperature is above 27.2 ℃, pre-cooling is performed, if the temperature is above 26 ℃ and below 27.2 ℃, semi-cooling is performed. If the temperature is above 20 ℃ and below 26 ℃, the evaporator fan is operated. will be.

That is, if the driver selects the automatic mode while the air temperature is less than 15 ° C. and the room temperature is less than 20 ° C., the power is turned on to No. 63 line-Auxiliary relay (AR) Excitation-Auxiliary relay contact (AR) The power is supplied to the atmospheric temperature sensor ATh through the contact AR.

At this time, since the air temperature is less than 15 ℃, the contact of the air temperature sensor (ATh) is opened to the air temperature relay (AThR) element, the room temperature is less than 20 ℃ because the heater temperature sensor (HTh) is short-circuited the heater temperature Power is supplied through the sensor HTh to excite the heater temperature relay HThR.

Therefore, the power supplied through the communication line 63 is applied to the room heater relay (RHeR1) through the heater temperature relay contact (HThR) and through the b contact of the heater temperature relay contact (HThR) and the air temperature relay contact (AThR). It is applied to room heater relay (RHeR2).

Therefore, the short circuit of room heater relay (RHeR1)-room heater contactor (RHeK1) excitation-room heater contactor (RHeK1) is short-circuited and the power is supplied to the 700W heater, and the room heater relay contact (RHeR2) short circuit-room heater Contactor (RHeK1) Excitation-Room Heater Contact (RHeK2) is shorted and power is supplied to 350W heater.

If the standby temperature is 15 ° C. or higher and the room temperature is less than 20 ° C. with the automatic mode selected, power is supplied to the 63rd human line.-Auxiliary relay (AR) excitation-Auxiliary relay contact (AR) is shorted, and the auxiliary relay Power is applied to the atmospheric temperature sensor ATh through the contact AR.

At this time, since the air temperature is 15 ° C or higher, the contact point of the air temperature sensor ATh is shorted and the air temperature relay AThR is excited, and the room temperature is less than 20 ° C. Power is supplied through the heater temperature sensor HTh to excite the heater temperature relay HThR.

Therefore, the power applied through the communication line 63 is applied to the room heater relay RheR1 through the heater temperature relay contact HThR.

Therefore, the short circuit of the room heater relay RheR1-the room heater contactor RHeK1 is excited and the room heater contact RRKH1 is shorted to supply power to the 700W heater.

When the standby temperature is less than 15 ° C. and the room temperature is 26 ° C. or more when the automatic mode is selected, power is supplied to the 63rd communication line.-Auxiliary relay (AR) excitation-Auxiliary relay contact (AR) is shorted, and the auxiliary Power is applied to the atmospheric temperature sensor ATh through the relay contact AR.

At this time, since the air temperature is less than 15 ° C, the contact of the air temperature sensor ATh is opened, and the air temperature relay AthR is demagnetized. As the room temperature is 26 ° C or higher, the low temperature contact of the temperature sensor Th1 is short-circuited and evaporated. Fan relay (EVaR1) Excitation-Evaporation fan relay contact (EVaR1) Short circuit-Magnetic contactor (MK31) Excitation-Magnetic contactor (MK31) is shorted and power is supplied to the evaporation fan (EF).

And if the standby temperature is over 15 ℃ and the room temperature is over 26 ℃ and below 27.2 ℃ with the automatic mode selected, the power is supplied to line 63.-Auxiliary relay (AR) excitation-Auxiliary relay contact (AR) is short-circuited. The power is supplied to the atmospheric temperature sensor ATh through the auxiliary relay contact AR.

At this time, because the air temperature is 15 ℃ or higher, the contact of the air temperature sensor ATh is shorted and the air temperature relay AthR is excited, and the room temperature is higher than 26 ℃ and lower than 27.2 ℃, so only the low temperature contact of the temperature sensor Th1 is available. This is a short circuit.

Therefore, the power applied through the 19th communication line is input to the unit cooler relays UCR1, UCR2, and UCR3 through the atmospheric temperature relay contact AthR, respectively, and the low temperature contact point of the temperature sensor Th1-the evaporation fan relay ( EVaR1) Excitation-Evaporation fan relay contact (EVaR1) Short circuit-Magnetic contactor (MK31) Excitation-Magnetic contactor (MK31) short circuit and power is supplied to the evaporation fan (EF) and unit cooler relay (UCR2, UCR3) Excitation-Unit cooler time device (UTD1, UTD2) Excitation-Magnetic contactor (MK11) Excitation-Magnetic contactor (MK11) is shorted and power is supplied to the first compressor (CP1) and the first cooling fan (CF1). will be.

And, if the air temperature is over 15 ℃ and the room temperature is over 27.2 ℃, power is supplied to No. 63 line-Auxiliary relay (AR) excitation-Auxiliary relay contact (AR) is short-circuited and the ambient temperature sensor Power is applied to (ATh).

At this time, since the atmospheric temperature is 15 ° C. or more, the contact point of the atmospheric temperature sensor ATh is shorted to excite the atmospheric temperature relay AthR, and both the low temperature contact point and the high temperature contact point of the temperature sensor Th1 are shorted.

Accordingly, power applied through the 19th communication line is input to the unit cooler relays UCR1, UCR2, and UCR3 through the atmospheric temperature relay contact AThR.

And, because the low temperature contact of the temperature sensor Th1 is short-circuited, evaporation fan relay (EVaR1) excitation-evaporation fan relay contact (EVaR1) short circuit-magnetic contactor (MK31) excitation-magnetic contactor contact (MK31) short-circuit (EF) power is applied and unit cooler relay (UCR2, UCr3) excitation-unit cooler time device (UTD1, UTD2) excitation-magnetic contactor (MK11, MK21) excitation-magnetic contactor (MK11, MK21) The power is supplied to the first compressor CP1, the first cooling fan CF1, the second compressor CP2, and the second cooling fan CF2.

In the above embodiment, the set values of the respective temperature sensors are not limited to the above and may be different in some cases.

As described above, the present invention has an effect of optimally maintaining a cabin temperature of a railroad car by sensing an air temperature and a cabin temperature of a railroad car and intermittently controlling a cooling device or a heating device according to the detected temperature.

In addition, the present invention can also prevent over-operation of the cooling device and the heating device due to the hysteresis of the temperature sensing sensors by intermittently controlling the heating device or the cooling device.

Claims (3)

Intermittent control of heating and air conditioning of railroad cars using relays allows the interior of the cabin to be controlled by either manual or automatic heating, 2/3 heating, 1/3 heating, fan, semi-cooling, pre-cooling or stop. A circuit for heating and cooling in a mode, the circuit comprising: an air conditioning unit (2) for outputting a mode selection signal in response to a driver's operation; An atmospheric temperature sensor 4 which detects the atmospheric temperature and outputs an atmospheric temperature detection signal if the atmospheric temperature is higher than the reference temperature; A first room temperature sensor 6 which detects a temperature inside the room and outputs a first temperature detection signal if the room temperature is equal to or greater than a first reference temperature; A second room temperature sensor (8) that detects a temperature inside the room and outputs a second temperature detection signal if the room temperature is higher than a second reference temperature higher than the first reference temperature; A third room temperature sensor 10 which detects a temperature inside the room and outputs a third temperature detection signal when the room temperature is higher than a third reference temperature higher than the second reference temperature; When the electric heating, 2/3 heating or 1/3 heating mode signal is inputted from the air conditioner selection unit 2, it operates in the corresponding mode, and when the automatic mode signal is inputted, the atmospheric temperature detection signal and the first temperature sensing signal A heating control unit 20 which operates by selecting one of the entire heating, 2/3 heating, and 1/3 heating according to an input or not; And operating the corresponding mode when the pre-cooling, semi-cooling or fan mode signal is input from the air-conditioning selecting unit 2, and when the automatic mode signal is input, the standby temperature detection signal, the second temperature detection signal and the third temperature detection signal. Cooling and heating control device for a railway vehicle, characterized in that it comprises a cooling control unit 40 for operating by selecting one of the pre-cooled, semi-cooled, fan according to whether the signal input. The heating control unit 20 operates the heating apparatus in a full heating mode when the automatic mode signal is input and the standby temperature detection signal and the first temperature detection signal are not input. The heating and heating control device for a railway vehicle, characterized in that configured to operate the heating device in the 2/3 heating mode when the signal and the atmospheric temperature detection signal and the first temperature detection signal is not input. According to claim 1, wherein the cooling control unit 40 is the automatic mode signal and the second temperature detection signal is input and the standby temperature detection signal is not input, or the automatic mode signal and the atmospheric temperature detection signal is input When the second temperature detection signal is not input, the cooling device is operated in a fan mode, and when the automatic mode signal, the standby temperature detection signal and the second temperature detection signal are input, and the third temperature detection signal is not input, the cooling is performed. Operating the apparatus in a semi-cooling mode, wherein the automatic mode signal, the atmospheric temperature sensing signal, and the third temperature sensing signal are input to operate the cooling apparatus in the pre-cooling mode.