CN201363851Y - Air-conditioning controller used in train environment - Google Patents
Air-conditioning controller used in train environment Download PDFInfo
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- CN201363851Y CN201363851Y CNU2009201057887U CN200920105788U CN201363851Y CN 201363851 Y CN201363851 Y CN 201363851Y CN U2009201057887 U CNU2009201057887 U CN U2009201057887U CN 200920105788 U CN200920105788 U CN 200920105788U CN 201363851 Y CN201363851 Y CN 201363851Y
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Abstract
The utility model provides an air-conditioning controller used in train environment, which comprises a power supply circuit, a central logic processing circuit and a switching value output circuit. The air-conditioning controller further comprises one or more DC110V switching value input circuits which are used for connecting a train air-conditioning component with DC110V output voltage and receiving status signals of the train air-conditioning component. The DC110V switching value input circuits are powered by the power supply circuit and forwards the status signals of the train air-conditioning component to the central logic processing circuit; the central logic processing circuit outputs DC110V control signals to the train air-conditioning component by the switching value output circuit according to the status signals and user commands of the train air-conditioning component. By applying the air-conditioning controller with single control circuit, electrical level of the control signals in the entire train environment and power supply voltage in a train can be adjusted, so as to greatly save limited space in the train and reduce the cost of the train.
Description
Technical field
The utility model relates to the power transfer technical field, and more specifically, the utility model relates to a kind of air-conditioner controller that is used for train environment.
Background technology
Air-conditioning has become the equipment of passenger train standard configuration at present, Fig. 1 illustrates the air-conditioner control system in the existing train environment, usually, as shown in Figure 1, the control voltage of train adopts DC 110V, and the switching value input port of traditional air-conditioner controller can only be handled the signal of DC 24V, and therefore each parts for air-conditioning need a large amount of auxiliary reclays to carry out level conversion.Simultaneously traditional air-conditioner controller adopts DC24V or AC 220V power supply, and when being applied to control train air-conditioning, needs to increase extra power transfer module.Therefore traditional air-conditioner controller needs a large amount of extra intermediate conversion devices when train environment is used, both having taken the large number quipments space has also increased equipment cost.
Summary of the invention
For overcoming the defective that a large amount of intermediate conversion modules cause in the existing train environment space hold and cost increase, the utility model proposes a kind of air-conditioner controller that is used for train environment.
According to an aspect of the present utility model, a kind of air-conditioner controller that is used for train environment has been proposed, comprising: power circuit, central logic treatment circuit, switching value output circuit;
It is characterized in that, described air-conditioner controller also comprises the DC110V switching value input circuit that is used to connect the train air-conditioning parts with DC 110V output voltage and receives described train air-conditioning unit status signal, and described DC110V switching value input circuit is transmitted to the central logic treatment circuit by described power circuit power supply and with the train air-conditioning unit status signal that is received;
Described central logic treatment circuit arrives the train air-conditioning parts according to described train air-conditioning unit status signal and user instruction by switching value output circuit output DC 110V control signal.
Described DC110V switching value input circuit comprises:
First branch road and second branch road that connect the parallel connection of described train air-conditioning parts, the output of described first branch road and second branch road is connected to the exciting current input of optocoupler; Described first branch road comprises Zener diode, described second branch road comprises the triode that resistance and base stage link to each other with described resistance, the base stage of described triode also connects the voltage-stabiliser tube and the filter capacitor of ground connection in parallel, and the colelctor electrode of described triode connects the exciting current input of described optocoupler;
Wherein, described light idol output low level when described train air-conditioning parts output voltage is 70V-140V, described light idol is at described train air-conditioning parts voltage output high level during for 0-24V.
Described DC110V switching value input circuit also comprises the anti-reverse diode between the train air-conditioning parts that are connected described first branch road and second branch road and described DC 110V voltage.
Described DC110V switching value input circuit also comprises the current-limiting resistance between the train air-conditioning parts that are connected described first branch road and second branch road and described DC 110V voltage.
The emitter stage of described triode connects the resistance of ground connection in parallel.
Described resistance in described second branch road is used to limit electric current, and described filter capacitor is used to filter high-frequency impulse.
Resistance value in described voltage-stabiliser tube and described second branch road is conditioned, the exciting current value when regulating described light idol normally.
The output voltage of the described Zener diode of described first branch road is than the low 12V of input voltage, regulates the low level threshold value that the voltage stabilizing value of described Zener diode is regulated the exciting current of described light idol.
Described train air-conditioning unit status signal comprises the start and stop state of compressor, freezing machine, ventilation blower, electric heater, magnetic valve, air-valve parts and such as the generator protection switch state signal of differential pressure security, overtemperature protection, overcurrent protection.
Described DC110V switching value input circuit is forwarded to the central logic treatment circuit with the switching value signal of input, described central logic treatment circuit receives the operational order by the input of man-machine interface circuit, carry out various air-conditioning control logic judgements, generate the control instruction of air supply rate, output to described switching value output circuit, described switching value output circuit output switching value signal is controlled the operation of air supply rate.
Use air-conditioner controller by using the utility model, making, can regulate the level and the Che Nei supply voltage of the control signal of whole train environment, greatly saved limited interior space and reduced the train cost with single control circuit.
Description of drawings
Fig. 1 is the air-conditioner control system schematic diagram in the existing train environment;
Fig. 2 is the structural representation according to the air-conditioner controller of the utility model embodiment;
Fig. 3 is the DC110V switching value input circuit schematic diagram according to the air-conditioner controller of the utility model embodiment;
Fig. 4 is the switching value output circuit schematic diagram of air-conditioner controller;
Fig. 5 is the power circuit schematic diagram of air-conditioner controller;
Fig. 6 is the man-machine interface circuit diagram of air-conditioner controller;
Fig. 7 is the central logic treatment circuit schematic diagram of air-conditioner controller.
The specific embodiment
Below in conjunction with the drawings and specific embodiments a kind of air-conditioner controller that is used for train environment that the utility model provides is described in detail.
Fig. 2 illustrates the air-conditioner controller that is used for train environment with DC 110V power supply and the input of DC 110V switching value according to the utility model embodiment.As shown in Figure 2, air-conditioner controller comprises: man-machine interface circuit, one or more DC110V switching value input circuit, switching value output circuit, central logic treatment circuit and power circuit.
Each DC110V switching value input circuit is used to receive the status signal of train air-conditioning parts, and the information of status signal is transferred to the central logic treatment circuit.Wherein, these status signals are DC 110V level signal, whether the start and stop state that comprises parts such as compressor, freezing machine, ventilation blower, electric heater, magnetic valve, air-valve, this class status signal are used to indicate each air supply rate to require to run well according to control; Whether the generator protection switch state signal that also comprises differential pressure security, overtemperature protection, overcurrent protection and so on is used to indicate unit running environment inner and each parts to occur unusually.
The central logic treatment circuit, by DC110V switching value input circuit, receive the duty of each parts of air-conditioning unit, after the director data of air supply rate start and stop status data, air supply rate running environment status data, ambient parameter data that various sensor collects and man-machine interface carried out integrated treatment, draw the start and stop scheme of each air supply rate of current time in real time, and control the start and stop of each parts and carry out the control logic instruction that the central logic treatment circuit sends by switching value output circuit output DC 110V level signal.
The switching value output circuit is used to export the switching value control signal to air supply rate, and this signal is a DC 110V level signal, the startup of control train air-conditioning parts and stopping.
Power circuit is used to receive outside DC 110V power supply and supplies with, for the each several part circuit of The whole control system provides required power.
The man-machine interface circuit is used to receive operational order and indicating equipment duty.
Fig. 3 illustrates a DC110V switching value input circuit of the air-conditioner controller of embodiment of the present utility model.In the railroad train system applies, input point voltage satisfies when changing in 0.7-1.25 times of scope of nominal value, and circuit working is normal, if promptly the input nominal voltage is 110V, is exactly input voltage operate as normal in this scope of 77V-137.5V the time so.As shown in Figure 3, when input 70V-140V voltage, light idol U20 output E point output low level (less than 0.1V), output high level (greater than 4.5V) when input 0-24V voltage, promptly signal or the stray light idol less than 24V can not produce action.
Light idol U20 is a current excitation type device, in allowed band, the big more light idol of exciting current output conducting is thorough more, output state is stable more, but consider that input point voltage is very high, the very big heating of the power of words loss on triode Q25 that electric current is too big is severe, so the exciting current IF of light idol is set to 5mA, when electric current during less than 3mA, light idol U20 can't stablize conducting.
In circuit shown in Figure 3, provide to take up room for a short time, directly on pcb board, reliably DC 110V switching value signal is converted to the circuit of the low tension switch signal of DC 5V, successfully realized the direct access controller device of DC 110V switching value signal.Suppose that input voltage is DC 110V, diode D26 is anti-reverse diode, prevents that input point voltage from connecing anti-back and damaging the back circuit.Resistance R 46 is a current-limiting resistance, is 101.2V through A point voltage behind D26 and the R46.From the A point, electric current divides two-way to walk, and one the road flows through resistance R 47, R48 to the C point, and to ground, another part provides base current for triode Q25 to a C point electric current part through voltage-stabiliser tube D73; Another road electric current provides exciting current IF for light idol U20 through Zener diode D11.R47, R48 are used for limiting the electric current that flows through Zener diode D73, and C35 is used for filtering high-frequency impulse.
In this circuit, add two Zener diode D73 and D11, the exciting current that (70-140V) flow through the light idol when voltage was changed in the high level effective range is kept invariable substantially, and (0-24V) light idol can not mislead when changing in the low level effective range.Wherein, during input high level, the voltage that D73 is ordered C is surely about 24V, triode Q25 is operated in the amplification region, and after the pressure drop through PN junction 0.6V, transistor emitter voltage is 23.4V, be that voltage is when changing in the 70V-140V scope, it is constant that the D point voltage is kept 23.4V, so the exciting current IF=4.68mA of the light idol of flowing through is constant, the voltage of variation is reflected on the collector emitter voltage Vce of Q25.The resistance of the voltage stabilizing value of adjusting D73 and resistance R 47, R48, the exciting current value IF in the time of can regulating light idol normally.
Wherein, during input low level, maximum is 24V, because of the pressure stabilization function of D11, makes the B point voltage than the low 12V of A point, is approximately 9V, and the exciting current that flow through the light idol this moment is 1.5mA, and deficiency is so that the conducting of light idol.Regulate the voltage stabilizing value of D11, can regulate the threshold value of low level input.
Exciting current value when table 1 illustrates different input voltage.
Table 1
| VIN (input voltage: V) | IF (exciting current: mA) | The whether conducting of light idol |
| 140 | 4.679 | Be |
| 110 | 4.675 | Be |
| 70 | 4.668 | Be |
| 24 | 1.524 | Not |
| 12 | 0.2 | Not |
| 0 | 0 | Not |
DC 110V switching value input circuit is input in the central logic treatment circuit after the switching value signal of importing is changed into the INPUT signal, the central logic treatment circuit receives the operational order by the input of man-machine interface circuit simultaneously, carry out various air-conditioning control logics judgement (as the PID logical decision etc.), generate the start and stop instruction of air supply rate, output in the switching value output circuit, export the start and stop that the switching value signal is controlled various air supply rates (as compressor, freezing machine, magnetic valve etc.) by the switching value output circuit, to reach the purpose of air conditioner intelligent control.In the utility model, central logic treatment circuit, man-machine interface circuit, power circuit and switching value circuit belong to universal circuit, can be identical with the interlock circuit of various main flow PLC products such as OMRON, SIEMENS.
Fig. 4 shows the switching value output circuit of air-conditioner controller, and the input signal OUTPUT of circuit is from the central logic treatment circuit.When OUTPUT signal when being high, triode Q8 conducting, relay J R8 adhesive, OUT and the conducting of COM pin, because COM connects the DC 110V of power circuit output, then switching value output circuit output DC110V level starts the air supply rate that is connected; When the OUTPUT signal when low, triode Q8 ends, relay J R8 disconnects, OUT and COM pin disconnect, switching value output circuit output 0V level stops the air supply rate that is connected.
Fig. 5 shows the power circuit of air-conditioner controller, circuit comprises that piezo-resistance RV1, RV2 are used to absorb surge, NTC resistance is used to reduce starting current to be impacted, common mode transformer T1 is used to eliminate common mode disturbances, diode D8-D11 forms bridge circuit, play anti-reverse effect, F1 is used to prevent short circuit from recovering insurance, and the DC/DC power module is used for changing voltage.
Fig. 6 shows the man-machine interface circuit of air-conditioner controller, comprises U4 CAN bus transceiver MCP2551, U2 CAN bus control unit MCP2515, and CPU is by spi bus visit CAN controller MCP2515; R7 bus build-out resistor.In circuit, various human interface devices are input to U4 by the CAN bus with the facility information data, after the interface level conversion through U4, be transformed into CAN data transmit-receive signal TXCAN, RXCAN links to each other with U2, converts the spi bus data to through U2 and passes through SEN_MOSI, SEN_MISO, SEN_SCLK, CS_2515,2515_INT links to each other with the central logic treatment circuit.Data are input to carries out logical process in the central logic treatment circuit.
Fig. 7 shows the central logic treatment circuit of air-conditioner controller, and the central logic treatment circuit comprises CPU single-chip microcomputer U3, crystal O2.CPU single-chip microcomputer U3 adopts the STC12C5410AD chip, the SPI interface that connects the input/output signal CAN bus of man-machine interface circuit, the SPI master of man-machine interface circuit sends out from the P1.6 that receives data-signal SEN_MISO and single-chip microcomputer U3 and links to each other, the SPI master of man-machine interface circuit receives from the P1.5 that sends out data-signal SEN_MOSI and single-chip microcomputer U3 and links to each other, the SPI clock signal SEN_SCLK of man-machine interface circuit and the P1.7 of single-chip microcomputer U3 link to each other, and the middle fracture P 3.2 of the output signal 2515_INT of man-machine interface circuit and single-chip microcomputer U3 links to each other.The RST pin of U3 is the reset signal pin, runs when flying when system need reset or break down at software, with system restart, recovers normal condition by house dog.STC_RXD and STC_TXD are the receiving and transmitting signals of the serial communication interface of U3, can carry out serial communication with other equipment, can upgrade by the software program of this interface to U3 simultaneously.XTAL1 and XTAL2 pin are the clock crystal oscillator signals of U3, in order to provide U3 work required clock.2515_INT is the external interrupt signal of U3, and when man-machine interface circuit status data was given U3,2515_INT can produce interruption, and U3 outage service subprogram receives the data that sent by SEN_MISO and SEN_MOSI pin.The INPUT pin connects the GPIO interface of U3, is used to receive the input state level that DC110V switching value input circuit sends.The OUTPUT pin connects the GPIO interface of U3, is used to output to the switching value output circuit, the start and stop of control air supply rate.FEED_DOG is the house dog feeding-dog signal, is used for regularly feeding dog, and when running software broke down, house dog can be restarted U3, automatically restores to normal condition.SCL_AD and SDA_AD are the I2C interface signal, are used for the JA(junction ambient) sensor, the data of reception environment sensor.U3 operation air-conditioning control logic, the environmental sensor data that man-machine interface data that state level data, SEN_MISO and the SEN_MOSI of integrated treatment INPUT hardware sends and SCL_AD and SDA_AD send, operation air-conditioning control logic, make the start and stop judgement of air supply rate, by OUTPUT signal output order, enforcement of judgment execute a judgement.
It should be noted that at last, above embodiment is only in order to describe the technical solution of the utility model rather than the present technique method is limited, the utility model can extend to other modification, variation, application and embodiment on using, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present utility model and teachings.
Claims (10)
1, a kind of air-conditioner controller that is used for train environment comprises: power circuit, central logic treatment circuit, switching value output circuit;
It is characterized in that, described air-conditioner controller also comprises one or more DC 110V switching value input circuit that is used to connect the train air-conditioning parts with DC 110V output voltage and receives described train air-conditioning unit status signal, and described one or more DC 110V switching value input circuit is by described power circuit power supply and respectively the train air-conditioning unit status signal that is received is transmitted to the central logic treatment circuit;
Described central logic treatment circuit arrives the train air-conditioning parts according to described train air-conditioning unit status signal and user instruction by switching value output circuit output DC 110V control signal.
2, air-conditioner controller according to claim 1 is characterized in that, a described DC 110V switching value input circuit comprises:
First branch road and second branch road that connect the parallel connection of described train air-conditioning parts, the output of described first branch road and second branch road is connected to the exciting current input of optocoupler; Described first branch road comprises Zener diode, described second branch road comprises the triode that resistance and base stage link to each other with described resistance, the base stage of described triode also connects the voltage-stabiliser tube and the filter capacitor of ground connection in parallel, and the colelctor electrode of described triode connects the exciting current input of described optocoupler;
Wherein, described light idol output low level when described train air-conditioning parts output voltage is 70V-140V, described light idol is at described train air-conditioning parts voltage output high level during for 0-24V.
3, air-conditioner controller according to claim 2 is characterized in that, described DC 110V switching value input circuit also comprises the anti-reverse diode between the train air-conditioning parts that are connected described first branch road and second branch road and described DC 110V voltage.
4, air-conditioner controller according to claim 2 is characterized in that, described DC 110V switching value input circuit also comprises the current-limiting resistance between the train air-conditioning parts that are connected described first branch road and second branch road and described DC 110V voltage.
5, air-conditioner controller according to claim 2 is characterized in that, the emitter stage of described triode connects the resistance of ground connection in parallel.
6, air-conditioner controller according to claim 2 is characterized in that, the described resistance in described second branch road is used to limit electric current, and described filter capacitor is used to filter high-frequency impulse.
7, air-conditioner controller according to claim 2 is characterized in that, the resistance value in described voltage-stabiliser tube and described second branch road is conditioned, the exciting current value when regulating described light idol normally.
8, air-conditioner controller according to claim 2, it is characterized in that, the output voltage of the described Zener diode of described first branch road is than the low 12V of input voltage, regulates the low level threshold value that the voltage stabilizing value of described Zener diode is regulated the exciting current of described light idol.
9, air-conditioner controller according to claim 1; it is characterized in that described train air-conditioning unit status signal comprises the start and stop state of compressor, freezing machine, ventilation blower, electric heater, magnetic valve, air-valve parts and such as the generator protection switch state signal of differential pressure security, overtemperature protection, overcurrent protection.
10, air-conditioner controller according to claim 1, it is characterized in that, described DC 110V switching value input circuit is forwarded to the central logic treatment circuit with the switching value signal of input, described central logic treatment circuit receives the operational order by the input of man-machine interface circuit, carry out various air-conditioning control logic judgements, generate the control instruction of air supply rate, output to described switching value output circuit, described switching value output circuit output switching value signal is controlled the operation of air supply rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201057887U CN201363851Y (en) | 2009-03-09 | 2009-03-09 | Air-conditioning controller used in train environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201057887U CN201363851Y (en) | 2009-03-09 | 2009-03-09 | Air-conditioning controller used in train environment |
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| CN201363851Y true CN201363851Y (en) | 2009-12-16 |
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| CNU2009201057887U Expired - Fee Related CN201363851Y (en) | 2009-03-09 | 2009-03-09 | Air-conditioning controller used in train environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832620B (en) * | 2009-03-09 | 2013-01-02 | 北京天宇飞鹰微电子系统技术有限公司 | Air-conditioning controller for train environment |
| CN113043810A (en) * | 2021-04-29 | 2021-06-29 | 东风商用车有限公司 | Vehicle-mounted air conditioner controller and automobile provided with same |
-
2009
- 2009-03-09 CN CNU2009201057887U patent/CN201363851Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832620B (en) * | 2009-03-09 | 2013-01-02 | 北京天宇飞鹰微电子系统技术有限公司 | Air-conditioning controller for train environment |
| CN113043810A (en) * | 2021-04-29 | 2021-06-29 | 东风商用车有限公司 | Vehicle-mounted air conditioner controller and automobile provided with same |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20150309 |
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| EXPY | Termination of patent right or utility model |