CN106058650A - Vehicle-mounted centralized-control intelligent power distribution device - Google Patents
Vehicle-mounted centralized-control intelligent power distribution device Download PDFInfo
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- CN106058650A CN106058650A CN201610604760.2A CN201610604760A CN106058650A CN 106058650 A CN106058650 A CN 106058650A CN 201610604760 A CN201610604760 A CN 201610604760A CN 106058650 A CN106058650 A CN 106058650A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a vehicle-mounted centralized-control intelligent power distribution device comprising a three-phase input electric parameter instrument, a three-phase output electric parameter instrument, a six-channel single-phase output electric parameter instrument, a DC output electric parameter instrument, a phase loss and phase sequence detection protection board, a three-phase solid-state relay KA1, a three-phase solid-state relay KA2, a single-phase solid-state relay KA3, a DC solid-state relay KA9, a master control circuit board, a keyboard module, and a liquid crystal display. The three-phase input electric parameter instrument, the three-phase output electric parameter instrument, the six-channel single-phase output electric parameter instrument, the DC output electric parameter instrument, the phase loss and phase sequence detection protection board, the three-phase solid-state relay KA1, the three-phase solid-state relay KA2, the single-phase solid-state relay KA3, the DC solid-state relay KA9, the keyboard module and the liquid crystal display are connected with the master control circuit board. The vehicle-mounted centralized-control intelligent power distribution device is a novel power distribution box which is of high adaptability and flexibility, can be used to monitor parameters in a centralized way and carry out centralized control, has perfect security measures, and can achieve over-limit alarm and cut off output automatically.
Description
Technical field
The present invention relates to a kind of power distribution equipment, particularly relate to a kind of vehicle-mounted centralized-control type Intelligent power distribution device, belong to automobile electricity
Device equipment technical field.
Background technology
Along with the development of modern science and technology, the special vehicle with vehicle mounted square cabin, van as representative widely should
For dual-use field.But the power supply-distribution system intelligence degree on the most a lot of special vehicles is the highest, adaptability and spirit
Activity is not strong, is not easy to Centralizing inspection parameter centralized Control, lacks perfect security implementations the most yet.
The Chinese invention patent of CN104092290B " a kind of intelligence power distribution and supply control system " disclose one can according to
Family demand carries out the system controlled for distribution to multichannel AC input and output, is mainly used in the confession power distribution system of vehicle-carried mobile system
System, described system runs through the input of Single-chip Controlling one road civil power and the input of two road generators, and the output of two-way air-conditioning, four
Road stand-by AC and road exchange output；And magnitude of voltage, current value are sampled, and provide sound and light alarm.This system
According to initial conditions, exchange output can be had prioritizing selection function.This system also has exchange input overvoltage/undervoltage protection, hands over
The miscellaneous functions such as stream output overloading protection.But, in this patent of invention, the alarming value of overvoltage/undervoltage is fixed value, is not easy to user's root
Arrange flexibly according to service condition；(only current mode creepage protection function, lacking safety can not to have voltage-type creepage protection function
The duplicate protection leaned on), the bad alarm prompt function of vehicle ground, automatically adjust phase sequence merit when the phase sequence of input electricity is wrong
Energy；The break-make of each road output controls also to use the pattern of each air switch overcurrent value of Non-follow control, it is impossible to pass through software program
Exporting with keyboard button Lai Duige road and be driven controlling and arrange flexibly the threshold value that stream disconnects, be once followed by is loaded with change
Dynamic, working current value changes, it is likely that needing again to change sky and open device, adaptability is inadequate；Not there is direct current output function,
And relatively multi-communication devices is direct current supply on special vehicle；Liquid crystal display screen is only used as showing current voltage current value use, Centralizing inspection
Function have much room for improvement.So, the Centralized Monitoring function of this system has many not enough.
Summary of the invention
It is an object of the invention to provide a kind of vehicle-mounted centralized-control type Intelligent power distribution device, adaptability and motility are relatively strong, just
In Centralizing inspection parameter centralized Control, there is perfect security implementations.With single-chip microcomputer internal processes as core, support RS-485
Digital interface communication, the input of on-line monitoring power supply and output, and can overload alarm and the Novel distribution box automatically cutting off output.
The purpose of the present invention is achieved by the following technical programs:
A kind of vehicle-mounted centralized-control type Intelligent power distribution device, including three-phase input electrical quantity instrument 1, three-phase output electrical quantity instrument 2, six road list
Mutually output electrical quantity instrument 3, direct current output electrical quantity instrument 4, disconnected phase and phase sequence detection protection board 5, three-phase solid relay KA1, three
Phase solid-state relay KA2, single-phase solid relay KA3, DC solid-state relay KA9, main control board 6, Keysheet module 7, liquid
Crystal display screen 8；Described three-phase input electrical quantity instrument 1, three-phase the output single-phase output in electrical quantity instrument 2, six tunnel electrical quantity instrument 3, direct current
Output electrical quantity instrument 4, disconnected phase and phase sequence detection protection board 5, three-phase solid relay KA1, three-phase solid relay KA2, single-phase
Solid-state relay KA3, DC solid-state relay KA9, Keysheet module 7, LCDs 8 are connected with main control board 6 respectively.
The purpose of the present invention can also be realized further by techniques below measure:
Aforementioned vehicle-mounted centralized-control type Intelligent power distribution device, described three-phase input electrical quantity instrument 1 is JSY-MK-301 type phase mutual inductance type
Electric energy quality monitor.
Aforementioned vehicle-mounted centralized-control type Intelligent power distribution device, the described six single-phase output in tunnel electrical quantity instrument 3 are JSY-MK-141 type six
Road metering module.
Aforementioned vehicle-mounted centralized-control type Intelligent power distribution device, described direct current output electrical quantity instrument 4 is JSY-MK-201 type DC meter
Amount module.
Aforementioned vehicle-mounted centralized-control type Intelligent power distribution device, described disconnected phase and phase sequence detection protection board 5 breaks and mistake for JVRD6-E
Phase protector.
Aforementioned vehicle-mounted centralized-control type Intelligent power distribution device, described main control board 6 includes that drain voltage detects protection circuit, described
Drain voltage detection protection circuit includes socket J10, inductance L1, resistance R21, diode D7, diode D8, electric capacity C21, electric capacity
C22, electric capacity C23, resistance R22, resistance R23, resistance R24, electric capacity C24, adjustable resistance W2, amplifier LM258A, resistance R25, electricity
Resistance R26, diode D9, optocoupler U5, resistance R3；Railway carriage ground and be connected to electric capacity C21 two ends with measuring, described inductance L1
One end with measure be connected, the other end of described inductance L1 is connected with the negative electrode of diode D7, one end of described resistance R21 and
The negative electrode of diode D7 is connected, another termination DC12V power supply of described resistance R21, and described electric capacity C22 is in parallel with resistance R22, and
The anode of one terminating diode D7 of connection circuit, the other end ground connection of parallel circuit, the anode of described diode D8 connects diode
The negative electrode of D7, described electric capacity C23, resistance R24, one end ground connection of electric capacity C24, another terminating diode D8 of described electric capacity C23
Negative electrode, described resistance R24, electric capacity C24 another termination amplifier LM258A anode input, described resistance R23 is connected to two
Between negative electrode and the anode input of amplifier LM258A of pole pipe D8, described adjustable resistance W2 is connected to reference voltage Vref and ground
Between, the negative terminal input of adjustable termination amplifier LM258A of described adjustable resistance W2, the anode of described diode D9 connects amplifier
The outfan of LM258A, the negative electrode of diode D9 is connected with resistance R25 and is followed by the anode input of amplifier LM258A, described resistance
The outfan of one termination amplifier LM258A of R26,1 end of another termination optocoupler U5 of described resistance R26, the 2 of described optocoupler U5
End ground connection, one end of the 4 terminating resistor R3 of described optocoupler U5, another termination VCC of described resistance R3,3 ends of described optocoupler U5
Ground connection.
Aforementioned vehicle-mounted centralized-control type Intelligent power distribution device, described main control board 6 includes ground wire alarm detection protection circuit, institute
State ground wire alarm detection protection circuit and include socket J10, electric capacity C21, inductance L1, resistance R27, resistance R28, resistance R29, resistance
R30, electric capacity C25, electric capacity C26, resistance R31, electric capacity C27, stabilivolt ZD1, adjustable resistance W3, integrated transporting discharging U16B, electric capacity
C28, resistance R32, optocoupler U6, resistance R4, ground, described inductance L1 with connecting railway carriage respectively and are measured in the two ends of described electric capacity C21
A termination measure ground, one end of the other end connecting resistance R27 of inductance L1, described resistance R28 and electric capacity C25 are in parallel, electricity in parallel
The other end of road one terminating resistor R27, parallel circuit other end ground connection, described resistance R30, electric capacity C26 are in parallel, parallel circuit
The anode input of one termination integrated transporting discharging U16B, the other end ground connection of parallel circuit, a termination integrated transporting discharging U16B of resistance R29
Anode input, the other end of resistance R29 is connected between resistance R27, resistance R28, the plus earth of described stabilivolt ZD1, surely
The negative electrode of pressure pipe ZD1 is followed by DC12V power supply through resistance R31, and described electric capacity C27, adjustable resistance W3 are parallel to the two of stabilivolt ZD1
End, reference voltage Vref introduces the negative electrode of stabilivolt ZD1, the negative terminal of the adjustable termination integrated transporting discharging U16B of described adjustable resistance W3
Input, described electric capacity C28 is connected between the negative terminal input and output side of integrated transporting discharging U16B, and described resistance R32 mono-terminates collection
Become the outfan of amplifier U16B, 1 end of resistance R32 another termination optocoupler U6, the 2 end ground connection of optocoupler U6,4 ends of described optocoupler U6
The 3 end ground connection of VCC, described optocoupler U6 it are followed by through resistance R4.
Compared with prior art, the invention has the beneficial effects as follows: motility of the present invention is relatively strong, the warning of alternating current-direct current overvoltage/undervoltage
Cut off threshold value to arrange flexibly according to user's service condition；Adaptability of the present invention is relatively strong, and transplantability is good, when rear end be loaded with become
Time dynamic, only again need to arrange with keyboard button according to bearing power and characteristic and cross the threshold parameter that stream cuts off, it is not necessary to
Solve by changing the chopper of fixed current value, additionally, when the phase sequence of environment of powering is wrong, it is possible to automatically adjust distribution
The three-phase output phase sequence of case；Security performance of the present invention is good, has voltage-type and the dual creepage protection function of current mode, vehicle connect
The bad alarm prompt function in ground, the warning tripping protection function of overvoltage/undervoltage, safely provided omnibearing for the person and equipment
Ensure；Centralized Monitoring of the present invention is functional, each road voltage x current value of centralized displaying input and output, supply frequency on liquid crystal display screen
Value, date-time, ground state, leakage condition, the on off operating mode of each road output, can be controlled by the keyboard button that liquid crystal display screen is other
The break-make of each road output, arranges voltage x current warning also by keyboard and cuts off threshold value, date-time.
Accompanying drawing explanation
Fig. 1 is the main circuit block diagram of the present invention；
Fig. 2 is the control circuit block diagram of the present invention；
Fig. 3 is the drain voltage detection protection circuit figure of the present invention；
Fig. 4 is the ground wire alarm detection protection circuit figure of the present invention.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Vehicle-mounted centralized-control type Intelligent power distribution device is a kind of with single-chip microcomputer internal processes as core, supports that RS-485 digital interface is led to
News, the input of on-line monitoring power supply and output, and can overload alarm and the Novel distribution box automatically cutting off output.This distribution box defeated
Entering for three-phase alternating current, output has three kinds of specifications: three-phase alternating current one tunnel, single phase ac six tunnel, and direct current one tunnel.
Vehicle-mounted centralized-control type intelligent distribution box include three-phase input electrical quantity instrument, three-phase output electrical quantity instrument, one
The individual six single-phase output in tunnel electrical quantity instrument, direct current output electrical quantity instrument, disconnected phase and phase sequence protection board, two three-phase solids
Relay, six single-phase solid relays, DC solid-state relay, AC220V turn the Switching Power Supply of DC24V, one
Residual current protection switch, one piece of main control board and the program of internal composition, one piece of Keysheet module circuit board, one piece of liquid crystal display
Screen, buzzer, alarm indicator, a several binding post.Vehicle-mounted centralized-control type intelligent distribution box control system is by main electricity
Road and control circuit two parts composition, wherein main circuit block diagram is as shown in Figure 1.The three phase mains input earth leakage protective three-phase of band
Chopper, then it is output as three-phase through three-phase solid relay, it is output as single-phase alternating current through single-phase solid relay, through switch electricity
Source and DC solid-state relay are output as unidirectional current.
Control circuit is as in figure 2 it is shown, include that three-phase input electrical quantity instrument 1, three-phase output electrical quantity instrument 2, six tunnel are single-phase defeated
Go out electrical quantity instrument 3, direct current output electrical quantity instrument 4, disconnected phase and phase sequence detection protection board 5, three-phase solid relay KA1, three-phase solid
State relay K A2, single-phase solid relay KA3, DC solid-state relay KA9, main control board 6, Keysheet module 7, liquid crystal
Display screen 8；Described three-phase input electrical quantity instrument 1, the three-phase output single-phase output in electrical quantity instrument 2, six tunnel electrical quantity instrument 3, direct current output
Electrical quantity instrument 4, disconnected phase and phase sequence detection protection board 5, three-phase solid relay KA1, three-phase solid relay KA2, single-phase solid-state
Relay K A3, DC solid-state relay KA9, Keysheet module 7, LCDs 8 are connected with main control board 6 respectively.Described three
Input electrical quantity instrument 1 is JSY-MK-301 type phase mutual inductance type electric energy quality monitor mutually.Described three-phase input electrical quantity instrument 1,
Three-phase output electrical quantity instrument 2 is JSY-MK-301 type phase mutual inductance type electric energy quality monitor.The single-phase output in described six tunnels electricity ginseng
Number instrument 3 is JSY-MK-141 type six road metering module.Described direct current output electrical quantity instrument 4 is JSY-MK-201 type DC measurement mould
Block.Described disconnected phase and phase sequence detection protection board 5 is the disconnected phase of JVRD6-E and phase failure protector.Above-mentioned various detector performance is as follows:
(1) JSY-MK-301 type phase mutual inductance type electric energy quality monitor
These series of products be a kind of have measurement, digital communication, warning output multifunctional intellectual instrument, it is possible to complete electric energy survey
Amount, gather and transmit, be widely used in the automation of transformation substations, power distribution automation, the electric energy measurement of enterprises, manage, examine.
Certainty of measurement is 0.5 grade, had both supported locally displayed also to support long-range RS-485 digital interface communication, and had used MODBUS-RTU communication
Agreement.
(2) JSY-MK-141 type six road metering module
JSY-MK-141 six road metering module can measure the energy data of six groups of equipment under same input circuit, including: electricity
Pressure, electric current, power, frequency, power and power consumption, support RS-485 digital interface communication, use MODBUS-RTU communication association
View.
(3) JSY-MK-201 type DC measurement module
JSY-MK-201 type DC measurement module can measure the voltage of DC circuit, electric current, supports that RS-485 digital interface is led to
News, use MODBUS-RTU communications protocol.
(4) the disconnected phase of JVRD6-E and phase failure protector
JVRD6-E breaks and phase failure protector (abbreviation protection board), and this protection board is that three-phase equipment is appeared in operation runs
Disconnected provide reliably protecting with misphase, volume is little, and wiring is simple, easy for installation, improves safety, reliability effect, is
Indispensable protection product in industrial equipment operation.This units test three-phase phase-sequence also provides an on-off model output.
The form of the circuit parameter recorded and state RS485 signal is transmitted to main control board by electrical quantity instrument.Misphase
Phase sequence detection protection board detection phase sequence, and provide an on-off model to main control board.Main control board mainly completes to read
Power taking Parameters Instrument and misphase Phase sequence detection protection board real time data, it is judged that whether the parameter of power supply input channel and output channel surpasses
Limit and phase sequence are the most correct, if transfinited, reporting to the police immediately and cutting off main circuit exports accordingly, if input phase sequence is the most just
Really, then phase sequence is adjusted, it is ensured that the phase sequence of main circuit output three-phase electricity is correct.
The residual current protection of input power, overcurrent protection and short-circuit protection are realized by the chopper in system, pass through liquid
Brilliant screen display power supply whether phase shortage.The voltage of input power, electric current and frequency are monitored in real time by three phase electrical parameters instrument, count in real time
According to being automatically displayed on liquid crystal display screen enters, and judged that input power, whether within normal range, is once sampled by main control board
Value is not within the normal range of default, and alarm is exported by master controller, and cuts off all output.
The control function of three-phase output realizes summary: use JVRD6-E to break phase and phase sequence protection board detection input power
Phase sequence, if phase sequence normal system will carry out three-phase output by three-phase solid relay KA1, otherwise by three-phase solid relay
Device KA2 carries out three-phase output, thus the phase sequence realizing three-phase output adjusts automatically.The voltage and current of three-phase output passes through three-phase
Electrical quantity instrument monitors in real time, and real time data will be automatically displayed on liquid crystal display screen enters, and be judged by main control board (monitoring host computer)
Whether the voltage and current of output is within normal range, and once sampled value is not within the normal range of default, governor circuit
Alarm is exported by plate, and cuts off three-phase output.
The control function of single-phase output realizes summary: the voltage and current of single-phase output is supervised in real time by single-phase electricity Parameters Instrument
Control, real time data will be automatically displayed on liquid crystal display screen enters, and be judged voltage and the electricity exported by main control board (monitoring host computer)
Whether stream is within normal range, and once sampled value is not within the normal range of default, and alarm is exported by main control board, and
Cut off corresponding single-phase output.
The control function of direct current output realizes summary: the voltage and current of direct current output is supervised in real time by DC parameter instrument
Control, real time data will be automatically displayed on liquid crystal display screen enters, and be judged voltage and the electricity exported by main control board (monitoring host computer)
Whether stream is within normal range, and once sampled value is not within the normal range of default, and alarm is exported by main control board, and
Cut-out direct current exports.
Power module TR1(LH05-10D0512 type is installed on main control board) and power module TR2(LH15-10B24
Type).Power module TR1 power is 5W, and input voltage is AC220V, and output DC5V electricity and DC12V electricity, DC5V electricity maximum exports
750mA, DC12V electricity maximum output 100mA.Power module TR2 power is 15W, and input voltage is AC220V, output DC24V electricity,
Maximum output 625mA.Three kinds of power supplys that the two power module provides are for circuit components.
The single-chip microcomputer that STC12C5A60S2 type single-chip microcomputer is single clock/machine cycle (1T) selected on main control board,
This single-chip microcomputer is high speed/low-power consumption/superpower jamproof 8051 single-chip microcomputers of new generation, instruction code completely compatible traditional 8051,
But fast 8-12 times of speed.It is internally integrated MAX810 Special reset circuit, 2 road PWM, 8 road 10-bit high speed A/D conversions (250K/S, i.e.
250000 times/second), for motor control, strong jamming occasion.This single-chip microcomputer operating voltage range is DC3.5V～DC5.5V, this electricity
Road adds the running voltage of DC5V to it, and each I/O mouth driving force all can reach 20mA, but whole chip maximum is less than
120mA.When I/O mouth is inadequate, available 2 to 3 common external 74HC164/165/595 of I/O line (all can cascade) carry out expansion I/O
Mouthful.P4.6 mouth has a low voltage threshold comparator, as outside power-fail detection circuit.
Vehicle-mounted centralized-control type Intelligent power distribution device, described main control board 6 includes that drain voltage detects protection circuit, such as Fig. 3 institute
Showing, described drain voltage detection protection circuit includes socket J10, inductance L1, resistance R21, diode D7, diode D8, electric capacity
C21, electric capacity C22, electric capacity C23, resistance R22, resistance R23, resistance R24, electric capacity C24, adjustable resistance W2, amplifier LM258A, electricity
Resistance R25, resistance R26, diode D9, optocoupler U5, resistance R3；Railway carriage ground and be connected to electric capacity C21 two ends with measuring, institute
Stating one end of inductance L1 and be connected with measuring, the other end of described inductance L1 is connected with the negative electrode of diode D7, described resistance R21
One end be connected with the negative electrode of diode D7, described resistance R21 another termination DC12V power supply, described electric capacity C22 and resistance
R22 is in parallel, the anode of a terminating diode D7 of parallel circuit, the other end ground connection of parallel circuit, the sun of described diode D8
Pole connects the negative electrode of diode D7, described electric capacity C23, resistance R24, one end ground connection of electric capacity C24, the other end of described electric capacity C23
Connecing the negative electrode of diode D8, described resistance R24, another anode terminating amplifier LM258A of electric capacity C24 input, described resistance
R23 is connected between the negative electrode of diode D8 and the anode input of amplifier LM258A, and described adjustable resistance W2 is connected to reference to electricity
Between pressure Vref and ground, the negative terminal input of adjustable termination amplifier LM258A of described adjustable resistance W2, the sun of described diode D9
Pole connects the outfan of amplifier LM258A, and the negative electrode of diode D9 is connected with resistance R25 and is followed by the anode input of amplifier LM258A, institute
State the outfan of termination amplifier LM258A of resistance R26,1 end of another termination optocoupler U5 of described resistance R26, described optocoupler
The 2 end ground connection of U5, one end of the 4 terminating resistor R3 of described optocoupler U5, another termination VCC, described optocoupler U5 of described resistance R3
3 end ground connection.
This circuit voltage with picking up the car skin and between measurement ground, after filtering dividing potential drop, is entered with reference voltage by integrated transporting discharging
Row compares output LDL voltage signal, and LDL voltage signal controls again optocoupler U5 conducting or is not turned on, and forms a low level or height
Level (P43 signal) sends into the P4.3 mouth of single-chip microcomputer U1, single-chip microcomputer be analyzed processing.Electric capacity C21 and inductance L1 plays flat
The effect of ripple.Diode D7, electric capacity C22, resistance R22 constitute protection circuit.The effect of diode D8 is one-way conduction, prevents
Electric current backflow goes back to front end.Electric capacity C23, resistance R23, resistance R24, electric capacity C24 constitute a filter network.Vref is as amplifier
The reference voltage of input, it is necessary to sufficiently stable, after can passing through electric resistance partial pressure by DC12V electricity, then by stabilivolt ZD1 voltage stabilizing
Rear acquisition.When regulating adjustable resistance W2, need test with the indirect AC36V voltage on railway carriage ground.Integrated transporting discharging U16A exists
Feedback circuit concatenates diode D9 and resistance R25, when the voltage of amplifier in-phase input end is less than the voltage of inverting input
Time, amplifier outfan is 0V, and at this moment the voltage of in-phase input end is higher than amplifier output end voltage, and diode D9 prevents electric current from pouring in down a chimney
Entering amplifier outfan, at this moment LDL is low level, and optocoupler U5 is not turned on；When the voltage of amplifier in-phase input end is more than anti-phase input
During the voltage held, amplifier outfan is 7 several volts (now voltage is suitable, is not required to stabilivolt clamped), and LDL is high level, light
Coupling U5 turns on.R26 plays the effect of current-limiting resistance.
Aforementioned vehicle-mounted centralized-control type Intelligent power distribution device, described main control board 6 includes ground wire alarm detection protection circuit, as
Shown in Fig. 4, described ground wire alarm detection protection circuit includes socket J10, electric capacity C21, inductance L1, resistance R27, resistance R28, electricity
Resistance R29, resistance R30, electric capacity C25, electric capacity C26, resistance R31, electric capacity C27, stabilivolt ZD1, adjustable resistance W3, integrated transporting discharging
U16B, electric capacity C28, resistance R32, optocoupler U6, resistance R4, ground, institute with connecting railway carriage respectively and are measured in the two ends of described electric capacity C21
The termination stating inductance L1 measures ground, and one end of the other end connecting resistance R27 of inductance L1, described resistance R28 and electric capacity C25 is also
Connection, the other end of parallel circuit one terminating resistor R27, parallel circuit other end ground connection, described resistance R30, electric capacity C26 are in parallel,
The anode input of one termination integrated transporting discharging U16B of parallel circuit, the other end ground connection of parallel circuit, a termination collection of resistance R29
Becoming the anode input of amplifier U16B, the other end of resistance R29 is connected between resistance R27, resistance R28, the sun of described stabilivolt ZD1
Pole ground connection, the negative electrode of stabilivolt ZD1 is followed by DC12V power supply through resistance R31, and described electric capacity C27, adjustable resistance W3 are parallel to voltage stabilizing
The two ends of pipe ZD1, reference voltage Vref introduces the negative electrode of stabilivolt ZD1, the adjustable termination integrated transporting discharging of described adjustable resistance W3
The negative terminal input of U16B, described electric capacity C28 is connected between the negative terminal input and output side of integrated transporting discharging U16B, described resistance
R32 mono-terminates the outfan of integrated transporting discharging U16B, 1 end of resistance R32 another termination optocoupler U6, and the 2 end ground connection of optocoupler U6 are described
4 ends of optocoupler U6 are followed by the 3 end ground connection of VCC, described optocoupler U6 through resistance R4.
This circuit resistance with picking up the car body and between measurement ground, by dividing potential drop, is entered by integrated transporting discharging and reference voltage
Row more afterwards output LDZ voltage signal, LDZ voltage signal control again optocoupler U6 conducting or be not turned on, formed a low level or
High level (P42 signal) sends into the P4.2 mouth of single-chip microcomputer U1, single-chip microcomputer be analyzed processing.Resistance R28, resistance R29, electricity
Resistance R30, electric capacity C25, electric capacity C26 constitute a filter network.When regulating adjustable resistance W3, need by " GJB219B-
2005 military communication car general specifications " socket J10 test and the peripheral resistance detecting circuit of railway carriage overlap joint on the ground.R32 is
Current-limiting resistance.
In addition to the implementation, the present invention can also have other embodiments, all employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (7)
1. a vehicle-mounted centralized-control type Intelligent power distribution device, it is characterised in that include three-phase input electrical quantity instrument, three-phase output electricity ginseng
Number instrument, the six single-phase output in tunnel electrical quantity instrument, direct current output electrical quantity instrument, disconnected phase and phase sequence detection protection board, three-phase solid relay
Device KA1, three-phase solid relay KA2, single-phase solid relay KA3, DC solid-state relay KA9, main control board, keyboard mould
Block, LCDs；Described three-phase input electrical quantity instrument, three-phase output electrical quantity instrument, the six single-phase output in tunnel electrical quantity instrument, direct current
Output electrical quantity instrument, disconnected phase and phase sequence detection protection board, three-phase solid relay KA1, three-phase solid relay KA2, single-phase solid
State relay K A3, DC solid-state relay KA9, Keysheet module, LCDs are connected with main control board respectively.
Vehicle-mounted centralized-control type Intelligent power distribution device the most as claimed in claim 1, it is characterised in that described three-phase input electrical quantity instrument
For JSY-MK-301 type phase mutual inductance type electric energy quality monitor.
Vehicle-mounted centralized-control type Intelligent power distribution device the most as claimed in claim 1, it is characterised in that the single-phase output in described six tunnels electricity ginseng
Number instrument is JSY-MK-141 type six road metering module.
Vehicle-mounted centralized-control type Intelligent power distribution device the most as claimed in claim 1, it is characterised in that described direct current output electrical quantity instrument
For JSY-MK-201 type DC measurement module.
Vehicle-mounted centralized-control type Intelligent power distribution device the most as claimed in claim 1, it is characterised in that the detection of described disconnected phase and phase sequence is protected
Backplate is the disconnected phase of JVRD6-E and phase failure protector.
Vehicle-mounted centralized-control type Intelligent power distribution device the most as claimed in claim 1, it is characterised in that described main control board includes leakage
Voltage detection protection circuit, described drain voltage detection protection circuit include socket J10, inductance L1, resistance R21, diode D7, two
Pole pipe D8, electric capacity C21, electric capacity C22, electric capacity C23, resistance R22, resistance R23, resistance R24, electric capacity C24, adjustable resistance W2, fortune
Put LM258A, resistance R25, resistance R26, diode D9, optocoupler U5, resistance R3；Railway carriage ground and measure be connected to electric capacity
The two ends of C21, one end of described inductance L1 with measure be connected, the other end of described inductance L1 and the negative electrode phase of diode D7
Even, one end of described resistance R21 is connected with the negative electrode of diode D7, another termination DC12V power supply of described resistance R21, described
Electric capacity C22 is in parallel with resistance R22, the anode of a terminating diode D7 of parallel circuit, and the other end ground connection of parallel circuit is described
The anode of diode D8 connects the negative electrode of diode D7, described electric capacity C23, resistance R24, one end ground connection of electric capacity C24, described electric capacity
The negative electrode of another terminating diode D8 of C23, described resistance R24, electric capacity C24 another termination amplifier LM258A anode defeated
Entering, described resistance R23 is connected between the negative electrode of diode D8 and the anode input of amplifier LM258A, and described adjustable resistance W2 is even
It is connected between reference voltage Vref and ground, the negative terminal input of adjustable termination amplifier LM258A of described adjustable resistance W2, described two
The anode of pole pipe D9 connects the outfan of amplifier LM258A, and the negative electrode of diode D9 is connected with resistance R25 and is followed by amplifier LM258A
Anode inputs, the outfan of termination amplifier LM258A of described resistance R26, the 1 of another termination optocoupler U5 of described resistance R26
End, the 2 end ground connection of described optocoupler U5, one end of the 4 terminating resistor R3 of described optocoupler U5, another termination VCC of described resistance R3,
The 3 end ground connection of described optocoupler U5.
Vehicle-mounted centralized-control type Intelligent power distribution device the most as claimed in claim 1, it is characterised in that described main control board includes ground
Line alarm detection protection circuit, described ground wire alarm detection protection circuit includes socket J10, electric capacity C21, inductance L1, resistance
R27, resistance R28, resistance R29, resistance R30, electric capacity C25, electric capacity C26, resistance R31, electric capacity C27, stabilivolt ZD1, adjustable electric
Resistance W3, integrated transporting discharging U16B, electric capacity C28, resistance R32, optocoupler U6, resistance R4, the two ends of described electric capacity C21 connect railway carriage respectively
Ground and measurement ground, a termination of described inductance L1 measures ground, one end of the other end connecting resistance R27 of inductance L1, described resistance R28
In parallel with electric capacity C25, the other end of parallel circuit one terminating resistor R27, parallel circuit other end ground connection, described resistance R30, electricity
Hold C26 in parallel, the anode input of a termination integrated transporting discharging U16B of parallel circuit, the other end ground connection of parallel circuit, resistance R29
One termination integrated transporting discharging U16B anode input, the other end of resistance R29 is connected between resistance R27, resistance R28, described surely
The plus earth of pressure pipe ZD1, the negative electrode of stabilivolt ZD1 is followed by DC12V power supply, described electric capacity C27, adjustable resistance through resistance R31
W3 is parallel to the two ends of stabilivolt ZD1, and reference voltage Vref introduces the negative electrode of stabilivolt ZD1, and described adjustable resistance W3's is adjustable
Termination integrated transporting discharging U16B negative terminal input, described electric capacity C28 be connected to integrated transporting discharging U16B negative terminal input and output side it
Between, described resistance R32 mono-terminates the outfan of integrated transporting discharging U16B, 1 end of resistance R32 another termination optocoupler U6, the 2 of optocoupler U6
End ground connection, 4 ends of described optocoupler U6 are followed by the 3 end ground connection of VCC, described optocoupler U6 through resistance R4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610604760.2A CN106058650A (en) | 2016-07-28 | 2016-07-28 | Vehicle-mounted centralized-control intelligent power distribution device |
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| CN201610604760.2A CN106058650A (en) | 2016-07-28 | 2016-07-28 | Vehicle-mounted centralized-control intelligent power distribution device |
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Application publication date: 20161026 |