CN204928081U - On -vehicle single phase power fault warning and protection device - Google Patents

On -vehicle single phase power fault warning and protection device Download PDF

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Publication number
CN204928081U
CN204928081U CN201520619927.3U CN201520619927U CN204928081U CN 204928081 U CN204928081 U CN 204928081U CN 201520619927 U CN201520619927 U CN 201520619927U CN 204928081 U CN204928081 U CN 204928081U
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China
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resistance
electric capacity
pin
connect
negative pole
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CN201520619927.3U
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Chinese (zh)
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王国俊
张超男
陈俊
郭雅琴
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Jiangsu Jiecheng Vehicle Electronic Information Engineering Coltd
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Jiangsu Jiecheng Vehicle Electronic Information Engineering Coltd
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Abstract

The utility model discloses an on -vehicle single phase power fault warning and protection device, it has power supply circuit, crosses under -voltage detection circuitry, overflows detection circuitry, electric leakage and ground connection detection circuitry, main control singlechip, sound warning circuit, light warning circuit, function button, actuating mechanism circuit. Power supply circuit and main control singlechip are connected, cross under -voltage detection circuitry and are connected with main control singlechip, overflow detection circuitry and are connected with main control singlechip, and electric leakage and ground connection detection circuitry are connected with main control singlechip, and sound warning circuit be connected with main control singlechip, and light warning circuit be connected with main control singlechip, and the function button is connected with main control singlechip, and the main control singlechip 3 circuit is connected with main control singlechip. The utility model discloses the power supply and the power consumption condition that have the on -vehicle consumer of real time monitoring to can provide the technological effect of reporting to the police with the protection unusually to equipment power supply and power consumption.

Description

Vehicle-mounted single phase poaer supply fault warning and protective device
Technical field
The utility model relates to a kind of power failure alarm and protective device, particularly relates to a kind of vehicle-mounted single phase poaer supply fault warning and protective device, belongs to vehicle electronics technical field.
Background technology
At present, mobile unit technical development is rapid, and when mobile unit makes rapid progress, the safeguard protection of mobile unit, the safeguard protection of electricity consumption personnel become very important.Because conventional power supply is alternating current 220V; therefore vehicle-mounted single phase poaer supply fault warning and protective device are as the important component part of vehicle-mounted power supply-distribution system; there is the functions such as over voltage detection protection, drain voltage detection protection, wiring detection alarm, misconnection 380V protection and over-current detection protection, for the safe and reliable equipment work of car load under motion and inactive state that completes provides safeguard.
Utility model content
The purpose of this utility model is to provide a kind of vehicle-mounted single phase poaer supply fault warning and protective device; based on single-chip microcomputer in conjunction with electric current, voltage sensor to vehicle-mounted single phase poaer supply real time data acquisition; have power supply, ground wire, electric leakage, overcurrent real-time monitoring and control by monitor data analysis circuit state, have acoustic alarm is carried out to circuit abnormality state, light is reported to the police, main power source switching function.
The purpose of this utility model is achieved by the following technical programs:
A kind of vehicle-mounted single phase poaer supply fault warning and protective device, comprise power supply circuit 1, overvoltage/undervoltage testing circuit 2, over-current detection circuit 3, electric leakage and grounded inspection circuit 4, main control singlechip 5, sound warning circuit 6, light warning circuit 7, function button 8, actuating mechanism circuit 9, wherein power supply circuit 1 is connected with main control singlechip 5, overvoltage/undervoltage testing circuit 2 is connected with main control singlechip 5, over-current detection circuit 3 is connected with main control singlechip 5, electric leakage and grounded inspection circuit 4 are connected with main control singlechip 5, sound warning circuit 6 is connected with main control singlechip 5, light warning circuit 7 is connected with main control singlechip 5, function button 8 is connected with main control singlechip 5, actuating mechanism circuit 9 is connected with main control singlechip 5.
The purpose of this utility model can also be realized further by following technical measures:
Aforementioned vehicle-mounted single phase poaer supply fault warning and protective device, wherein power supply circuit 1 is by power transfer module U1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, diode D1, Voltage stabilizing module U2, switch 2PX6, positive 12V power supply, positive 5V power supply composition, power supply inputs one end and is connected with 3 pin of power transfer module U1, and power supply inputs the other end and is connected with 2 pin of power transfer module U1,5 pin of Power Entry Module U1 respectively with electric capacity C1 positive pole, electric capacity C2 positive pole, diode D1 positive pole connects, 4 pin of Power Entry Module U1 respectively with electric capacity C1 negative pole, electric capacity C2 negative pole, connect in analog, diode D1 negative pole respectively with electric capacity C3 positive pole, switch 2PX6 one pin connect, another pin of switch 2PX6 respectively with positive 12V power supply, electric capacity C4 positive pole, 1 pin of Voltage stabilizing module U2 connects, 3 pin of Voltage stabilizing module U2 respectively with electric capacity C5 positive pole, electric capacity C6 positive pole, positive 5V power supply connects, electric capacity C3 negative pole respectively with electric capacity C4 negative pole, 2 pin of Voltage stabilizing module U2, electric capacity C5 negative pole, electric capacity C6 negative pole, connect in analog.
Aforementioned vehicle-mounted single phase poaer supply fault warning and protective device, wherein overvoltage/undervoltage testing circuit 2 is by resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, variable resistor RP1, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, diode D2, voltage stabilizing didoe D3, four road operational amplifier U3, isolated voltage transformer T1, positive 12V power supply composition, power supply input one end respectively with resistance R1 one end, resistance R2 one end connects, and the power supply input other end is connected with first siding ring one end of isolated voltage transformer T1, the first siding ring other end of isolated voltage transformer T1 respectively with the resistance R1 other end, the resistance R2 other end connects, second siding ring one end of isolated voltage transformer T1 respectively with resistance R3 one end, resistance R5 one end, electric capacity C7 positive pole, electric capacity C8 positive pole, 5 pin of four road operational amplifier U3 connect, the second siding ring other end of isolated voltage transformer T1 respectively with resistance R4 one end, electric capacity C8 negative pole, electric capacity C9 negative pole, 6 pin of four road operational amplifier U3 connect, the resistance R3 other end respectively with 4 pin of four road operational amplifier U3, resistance R11 one end, positive 12V power supply connects, electric capacity C5 negative pole respectively with the resistance R5 other end, connect in analog, the resistance R4 other end is connected with 1 pin of variable RP1,2 pin of variable resistor RP1 respectively with electric capacity C9 positive pole, electric capacity C10 positive pole, four road operational amplifier U3 7 pin connect, the resistance R11 other end is connected with resistance R10 one end, the resistance R10 other end respectively with resistance R6 one end, 3 pin of four road operational amplifier U3 connect, the resistance R6 other end respectively with 11 pin of four road operational amplifier U3, resistance R7 one end, connect in analog, the resistance R7 other end respectively with resistance R8 one end, four road operational amplifier U3 9 pin connect, electric capacity C10 negative pole respectively with resistance R15 one end, resistance R12 one end, resistance R13 one end connect, the resistance R15 other end be connected in analog, the resistance R12 other end respectively with diode D2 negative pole, 2 pin of four road operational amplifier U3 are connected with 12 pin, and diode D2 positive pole is connected with 1 pin of four road operational amplifier U3, the resistance R13 other end respectively with resistance R14 one end, four road operational amplifier U3 13 pin connect, the resistance R14 other end respectively with resistance 17 one end, four road operational amplifier U3 14 pin connect, the resistance R17 other end respectively with resistance R16 one end, electric capacity C12 positive pole connect, the resistance R16 other end respectively with electric capacity C11 positive pole, four road operational amplifier U3 10 pin connect, electric capacity C11 negative pole be connected in analog, electric capacity C12 negative pole respectively with resistance R18 one end, the resistance R8 other end, resistance R9 one end, four road operational amplifier U3 8 pin connect, the resistance R9 other end be connected in analog, the resistance R18 other end respectively with voltage stabilizing didoe D3 negative pole, electric capacity C13 positive pole, electric capacity C14 positive pole, resistance R19 one end connect, the resistance R19 other end respectively with output CY1, electric capacity C15 positive pole connect, voltage stabilizing didoe D3 positive pole respectively with electric capacity C13 negative pole, electric capacity C14 negative pole, electric capacity C15 negative pole, connect in analog.
Aforementioned vehicle-mounted single phase poaer supply fault warning and protective device, wherein over-current detection circuit 3 is by voltage stabilizing didoe D4, electric capacity C16, electric capacity C17, electric capacity C18, electric capacity C19, resistance R20, resistance R21 forms, current input terminal respectively with voltage stabilizing didoe D4 negative pole, electric capacity C16 positive pole, electric capacity C17 positive pole, resistance R20 one end, electric capacity C18 positive pole, resistance R21 one end connects, voltage stabilizing didoe D4 positive pole respectively with electric capacity C16 negative pole, electric capacity C17 negative pole, electric capacity C18 negative pole, the resistance R20 other end, electric capacity C19 negative pole, connect in analog, the resistance R21 other end respectively with electric capacity C19 positive pole, output DLCY connects.
Aforementioned vehicle-mounted single phase poaer supply fault warning and protective device, wherein electric leakage and grounded inspection circuit 4 are by electric capacity C20, electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24, electric capacity C25, electric capacity C26, electric capacity C27, inductance L 1, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, resistance R32, resistance R33, diode D5, diode D6, voltage stabilizing didoe D7, diode D8, variable resistor RP2, variable resistor RP3, comparator U4, photoelectrical coupler B1, photoelectrical coupler B2, positive 12V power supply, test ground input respectively with electric capacity C20 positive pole, inductance L 1 one end connect, railway carriage ground input respectively with electric capacity C20 negative pole, digitally connect, inductance L 1 other end respectively with resistance R22 one end, resistance R26 one end, diode D5 positive pole, diode D6 negative pole connect, diode D6 negative pole respectively with resistance R29 one end, electric capacity C22 positive pole connect, the resistance R29 other end respectively with electric capacity C22 negative pole, digitally connect, diode D5 negative pole respectively with resistance R27 one end, electric capacity C21 positive pole connect, the resistance R27 other end respectively with resistance R28 one end, electric capacity C24 positive pole, resistance R30 one end, comparator U4 3 pin connect, electric capacity C21 negative pole respectively with the resistance R28 other end, electric capacity C24 negative pole, digitally connect, the resistance R30 other end is connected with diode D8 negative pole, diode D8 positive pole respectively with resistance R33 one end, 1 pin of comparator U4 connects, and the resistance R33 other end is connected with 1 pin of photoelectrical coupler B1,4 pin of comparator U4 be digitally connected, the resistance R26 other end respectively with resistance R31 one end, electric capacity C27 positive pole, 8 pin of comparator U4, positive 12 power supplys connect, electric capacity C27 negative pole be digitally connected, the resistance R31 other end respectively with 1 pin of variable resistor RP2, voltage stabilizing didoe D7 negative pole, electric capacity C25 positive pole, 1 pin of variable resistor RP3 connects, and 2 pin of variable resistor RP2 are connected with 2 pin of comparator U4,3 pin of variable resistor RP2 be digitally connected, the positive pole of voltage stabilizing didoe D7 respectively with electric capacity C25 negative pole, digitally connect, 2 pin of variable resistor RP3 respectively with 6 pin of comparator U4, electric capacity C26 negative pole connects, 3 pin of variable resistor RP3 be digitally connected, electric capacity C26 positive pole respectively with 7 pin of comparator U4, resistance R32 one end connect, the resistance R32 other end is connected with 1 pin of photoelectrical coupler B2, the resistance R22 other end respectively with electric capacity C20 positive pole, resistance R23 one end, resistance R24 one end connect, the resistance R24 other end respectively with resistance R25 one end, electric capacity C23 positive pole, comparator U4 5 pin connect, electric capacity C20 negative pole respectively with the resistance R23 other end, the resistance R25 other end, electric capacity C23 negative pole, digitally connect, 2 pin of photoelectrical coupler B1 be digitally connected, 3 pin of photoelectrical coupler B1 be connected in analog, 4 pin of photoelectrical coupler B1 are connected with output LD, 2 pin of photoelectrical coupler B2 be digitally connected, 3 pin of photoelectrical coupler B2 be connected in analog, 4 pin of photoelectrical coupler B2 are connected with output DX.
Aforementioned vehicle-mounted single phase poaer supply fault warning and protective device, wherein actuating mechanism circuit 9 is by electric capacity C28, relay K 1, triode Q1, electric capacity C29, resistance R34, resistance R35, positive 12V power supply composition, exchange control inputs one end respectively with electric capacity C28 positive pole, 1 pin of relay K 1 connects, exchange the control inputs other end respectively with electric capacity C28 negative pole, 2 pin of relay K 1 connect, 3 pin of relay K 1 are connected with positive 12V power supply, 4 pin of relay K 1 are connected with the collector electrode of triode Q1, the base stage of triode Q1 respectively with electric capacity C29 positive pole, resistance R34 one end connects, the resistance R34 other end respectively with resistance R35 one end, control end KZ1 connects, the emitter of triode Q1 respectively with electric capacity C29 negative pole, the resistance R35 other end, connect in analog.
Aforementioned vehicle-mounted single phase poaer supply fault warning and protective device, wherein main control singlechip 5 is PIC16F877A.
Compared with prior art, the beneficial effects of the utility model are:
The utility model adopts Single-chip Controlling in conjunction with voltage, current collection circuit, each power supply signal is monitored in real time, report to the police to abnormal and control by control circuit, sound light alarming circuit when occurring abnormal in time, ensureing the safety and reliability of integrated circuit system.Adopt Single-chip Controlling pattern to make hardware control circuit design complexities reduces, anti-interference improves, debugging maintenance difficulty reduces simultaneously.For execution control circuit, in order to ensure the reliability switched between solid-state relay, selecting first closing module to cut off load and carrying out again exchanging the mode changed, thus realizing the technique effect of ac circuit zero-voltage zero-current switching.
Accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model;
Fig. 2 is the circuit diagram of the utility model power supply circuit 1;
Fig. 3 is the circuit diagram of the utility model overvoltage/undervoltage testing circuit 2;
Fig. 4 is the circuit diagram of the utility model over-current detection circuit 3;
Fig. 5 is the circuit diagram of the utility model electric leakage and grounded inspection circuit 4;
Fig. 6 is the circuit diagram of the utility model actuating mechanism circuit 9.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the vehicle-mounted single phase poaer supply fault warning of one described in the utility model and protective device, comprise power supply circuit 1, overvoltage/undervoltage testing circuit 2, over-current detection circuit 3, electric leakage and grounded inspection circuit 4, main control singlechip 5, sound warning circuit 6, light warning circuit 7, function button 8, actuating mechanism circuit 9, wherein power supply circuit 1 is connected with main control singlechip 5, overvoltage/undervoltage testing circuit 2 is connected with main control singlechip 5, over-current detection circuit 3 is connected with main control singlechip 5, electric leakage and grounded inspection circuit 4 are connected with main control singlechip 5, sound warning circuit 6 is connected with main control singlechip 5, light warning circuit 7 is connected with main control singlechip 5, function button 8 is connected with main control singlechip 5, actuating mechanism circuit 9 is connected with main control singlechip 5.
As shown in Figure 2, the power supply circuit 1 described in the utility model is by power transfer module U1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, diode D1, Voltage stabilizing module U2, switch 2PX6, positive 12V power supply, positive 5V power supply composition, power supply inputs one end and is connected with 3 pin of power transfer module U1, and power supply inputs the other end and is connected with 2 pin of power transfer module U1,5 pin of Power Entry Module U1 respectively with electric capacity C1 positive pole, electric capacity C2 positive pole, diode D1 positive pole connects, 4 pin of Power Entry Module U1 respectively with electric capacity C1 negative pole, electric capacity C2 negative pole, connect in analog, diode D1 negative pole respectively with electric capacity C3 positive pole, switch 2PX6 one pin connect, another pin of switch 2PX6 respectively with positive 12V power supply, electric capacity C4 positive pole, 1 pin of Voltage stabilizing module U2 connects, 3 pin of Voltage stabilizing module U2 respectively with electric capacity C5 positive pole, electric capacity C6 positive pole, positive 5V power supply connects, electric capacity C3 negative pole respectively with electric capacity C4 negative pole, 2 pin of Voltage stabilizing module U2, electric capacity C5 negative pole, electric capacity C6 negative pole, connect in analog.
As shown in Figure 3, the overvoltage/undervoltage testing circuit 2 described in the utility model is by resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, variable resistor RP1, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, diode D2, voltage stabilizing didoe D3, four road operational amplifier U3, isolated voltage transformer T1, positive 12V power supply composition, power supply input one end respectively with resistance R1 one end, resistance R2 one end connects, and the power supply input other end is connected with first siding ring one end of isolated voltage transformer T1, the first siding ring other end of isolated voltage transformer T1 respectively with the resistance R1 other end, the resistance R2 other end connects, second siding ring one end of isolated voltage transformer T1 respectively with resistance R3 one end, resistance R5 one end, electric capacity C7 positive pole, electric capacity C8 positive pole, 5 pin of four road operational amplifier U3 connect, the second siding ring other end of isolated voltage transformer T1 respectively with resistance R4 one end, electric capacity C8 negative pole, electric capacity C9 negative pole, 6 pin of four road operational amplifier U3 connect, the resistance R3 other end respectively with 4 pin of four road operational amplifier U3, resistance R11 one end, positive 12V power supply connects, electric capacity C5 negative pole respectively with the resistance R5 other end, connect in analog, the resistance R4 other end is connected with 1 pin of variable RP1,2 pin of variable resistor RP1 respectively with electric capacity C9 positive pole, electric capacity C10 positive pole, four road operational amplifier U3 7 pin connect, the resistance R11 other end is connected with resistance R10 one end, the resistance R10 other end respectively with resistance R6 one end, 3 pin of four road operational amplifier U3 connect, the resistance R6 other end respectively with 11 pin of four road operational amplifier U3, resistance R7 one end, connect in analog, the resistance R7 other end respectively with resistance R8 one end, four road operational amplifier U3 9 pin connect, electric capacity C10 negative pole respectively with resistance R15 one end, resistance R12 one end, resistance R13 one end connect, the resistance R15 other end be connected in analog, the resistance R12 other end respectively with diode D2 negative pole, 2 pin of four road operational amplifier U3 are connected with 12 pin, and diode D2 positive pole is connected with 1 pin of four road operational amplifier U3, the resistance R13 other end respectively with resistance R14 one end, four road operational amplifier U3 13 pin connect, the resistance R14 other end respectively with resistance 17 one end, four road operational amplifier U3 14 pin connect, the resistance R17 other end respectively with resistance R16 one end, electric capacity C12 positive pole connect, the resistance R16 other end respectively with electric capacity C11 positive pole, four road operational amplifier U3 10 pin connect, electric capacity C11 negative pole be connected in analog, electric capacity C12 negative pole respectively with resistance R18 one end, the resistance R8 other end, resistance R9 one end, four road operational amplifier U3 8 pin connect, the resistance R9 other end be connected in analog, the resistance R18 other end respectively with voltage stabilizing didoe D3 negative pole, electric capacity C13 positive pole, electric capacity C14 positive pole, resistance R19 one end connect, the resistance R19 other end respectively with output CY1, electric capacity C15 positive pole connect, voltage stabilizing didoe D3 positive pole respectively with electric capacity C13 negative pole, electric capacity C14 negative pole, electric capacity C15 negative pole, connect in analog.
As shown in Figure 4, over-current detection circuit 3 described in the utility model is by voltage stabilizing didoe D4, electric capacity C16, electric capacity C17, electric capacity C18, electric capacity C19, resistance R20, resistance R21 forms, current input terminal respectively with voltage stabilizing didoe D4 negative pole, electric capacity C16 positive pole, electric capacity C17 positive pole, resistance R20 one end, electric capacity C18 positive pole, resistance R21 one end connects, voltage stabilizing didoe D4 positive pole respectively with electric capacity C16 negative pole, electric capacity C17 negative pole, electric capacity C18 negative pole, the resistance R20 other end, electric capacity C19 negative pole, connect in analog, the resistance R21 other end respectively with electric capacity C19 positive pole, output DLCY connects.
As shown in Figure 5, the electric leakage described in the utility model and grounded inspection circuit 4 are by electric capacity C20, electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24, electric capacity C25, electric capacity C26, electric capacity C27, inductance L 1, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, resistance R32, resistance R33, diode D5, diode D6, voltage stabilizing didoe D7, diode D8, variable resistor RP2, variable resistor RP3, comparator U4, photoelectrical coupler B1, photoelectrical coupler B2, positive 12V power supply, test ground input respectively with electric capacity C20 positive pole, inductance L 1 one end connect, railway carriage ground input respectively with electric capacity C20 negative pole, digitally connect, inductance L 1 other end respectively with resistance R22 one end, resistance R26 one end, diode D5 positive pole, diode D6 negative pole connect, diode D6 negative pole respectively with resistance R29 one end, electric capacity C22 positive pole connect, the resistance R29 other end respectively with electric capacity C22 negative pole, digitally connect, diode D5 negative pole respectively with resistance R27 one end, electric capacity C21 positive pole connect, the resistance R27 other end respectively with resistance R28 one end, electric capacity C24 positive pole, resistance R30 one end, comparator U4 3 pin connect, electric capacity C21 negative pole respectively with the resistance R28 other end, electric capacity C24 negative pole, digitally connect, the resistance R30 other end is connected with diode D8 negative pole, diode D8 positive pole respectively with resistance R33 one end, 1 pin of comparator U4 connects, and the resistance R33 other end is connected with 1 pin of photoelectrical coupler B1,4 pin of comparator U4 be digitally connected, the resistance R26 other end respectively with resistance R31 one end, electric capacity C27 positive pole, 8 pin of comparator U4, positive 12 power supplys connect, electric capacity C27 negative pole be digitally connected, the resistance R31 other end respectively with 1 pin of variable resistor RP2, voltage stabilizing didoe D7 negative pole, electric capacity C25 positive pole, 1 pin of variable resistor RP3 connects, and 2 pin of variable resistor RP2 are connected with 2 pin of comparator U4,3 pin of variable resistor RP2 be digitally connected, the positive pole of voltage stabilizing didoe D7 respectively with electric capacity C25 negative pole, digitally connect, 2 pin of variable resistor RP3 respectively with 6 pin of comparator U4, electric capacity C26 negative pole connects, 3 pin of variable resistor RP3 be digitally connected, electric capacity C26 positive pole respectively with 7 pin of comparator U4, resistance R32 one end connect, the resistance R32 other end is connected with 1 pin of photoelectrical coupler B2, the resistance R22 other end respectively with electric capacity C20 positive pole, resistance R23 one end, resistance R24 one end connect, the resistance R24 other end respectively with resistance R25 one end, electric capacity C23 positive pole, comparator U4 5 pin connect, electric capacity C20 negative pole respectively with the resistance R23 other end, the resistance R25 other end, electric capacity C23 negative pole, digitally connect, 2 pin of photoelectrical coupler B1 be digitally connected, 3 pin of photoelectrical coupler B1 be connected in analog, 4 pin of photoelectrical coupler B1 are connected with output LD, 2 pin of photoelectrical coupler B2 be digitally connected, 3 pin of photoelectrical coupler B2 be connected in analog, 4 pin of photoelectrical coupler B2 are connected with output DX.
As shown in Figure 6, actuating mechanism circuit 9 described in the utility model is by electric capacity C28, relay K 1, triode Q1, electric capacity C29, resistance R34, resistance R35, positive 12V power supply composition, exchange control inputs one end respectively with electric capacity C28 positive pole, 1 pin of relay K 1 connects, exchange the control inputs other end respectively with electric capacity C28 negative pole, 2 pin of relay K 1 connect, 3 pin of relay K 1 are connected with positive 12V power supply, 4 pin of relay K 1 are connected with the collector electrode of triode Q1, the base stage of triode Q1 respectively with electric capacity C29 positive pole, resistance R34 one end connects, the resistance R34 other end respectively with resistance R35 one end, control end KZ1 connects, the emitter of triode Q1 respectively with electric capacity C29 negative pole, the resistance R35 other end, connect in analog.
Main control singlechip 5 described in the utility model is PIC16F877A.
Input voltage forms the output voltage of approximate DC voltage after the four-operational amplifier in overvoltage/undervoltage testing circuit processes, and through the voltage stabilizing process of follow-up voltage stabilizing circuit, obtains more accurate direct voltage and exports main control singlechip CY1 port to.
When main control singlechip receives the voltage input signal processed; voltage signal after process is compared with default abnormal alarm magnitude of voltage; when reaching exceptional value; main control singlechip output control signal control actuating mechanism circuit performs corresponding safeguard measure and controls sound light alarming circuit and carries out sound and light alarm, reminds operating personnel's input voltage to occur abnormal.
Input current changes into the discernible level signal of main control singlechip through over-current detection circuit, when electric current is normal, loading in over-current detection circuit diode both end voltage cannot breakdown diode, over-current detection circuit exports as low level, when current is excessive, the voltage loading on diode two ends in over-current detection circuit increases thus causes diode breakdown, and over-current detection circuit exports high level.
When main control singlechip receives over-current detection circuit output high level, main control singlechip output control signal control actuating mechanism circuit performs corresponding safeguard measure and controls sound light alarming circuit and carries out sound and light alarm, reminds operating personnel's input voltage to occur extremely.
Abnormal voltage value is preset by variable resistor in electric leakage and grounded inspection circuit, by comparator in circuit, the electric leakage of access, ground signalling and default abnormal voltage value are compared, when electric leakage, ground signalling are greater than abnormal voltage value, electric leakage and grounded inspection circuit export high level, otherwise are then low level.
When main control singlechip receives electric leakage and grounded inspection circuit exports high level; main control singlechip output control signal control actuating mechanism circuit performs corresponding safeguard measure and controls sound light alarming circuit and carries out sound and light alarm, reminds operating personnel's input voltage to occur abnormal.
In addition to the implementation, the utility model can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.

Claims (7)

1. a vehicle-mounted single phase poaer supply fault warning and protective device, comprise sound warning circuit (6), light warning circuit (7), function button (8), it is characterized in that, also comprise power supply circuit (1), overvoltage/undervoltage testing circuit (2), over-current detection circuit (3), electric leakage and grounded inspection circuit (4), main control singlechip (5), actuating mechanism circuit (9), described power supply circuit (1) is connected with main control singlechip (5), overvoltage/undervoltage testing circuit (2) is connected with main control singlechip (5), over-current detection circuit (3) is connected with main control singlechip (5), electric leakage and grounded inspection circuit (4) are connected with main control singlechip (5), sound warning circuit (6) is connected with main control singlechip (5), light warning circuit (7) is connected with main control singlechip (5), function button (8) is connected with main control singlechip (5), actuating mechanism circuit (9) is connected with main control singlechip (5).
2. vehicle-mounted single phase poaer supply fault warning as claimed in claim 1 and protective device, is characterized in that, described power supply circuit (1) is by power transfer module U1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, diode D1, Voltage stabilizing module U2, switch 2PX6, positive 12V power supply, positive 5V power supply composition, power supply inputs one end and is connected with 3 pin of power transfer module U1, and power supply inputs the other end and is connected with 2 pin of power transfer module U1,5 pin of Power Entry Module U1 respectively with electric capacity C1 positive pole, electric capacity C2 positive pole, diode D1 positive pole connects, 4 pin of Power Entry Module U1 respectively with electric capacity C1 negative pole, electric capacity C2 negative pole, connect in analog, diode D1 negative pole respectively with electric capacity C3 positive pole, switch 2PX6 one pin connect, another pin of switch 2PX6 respectively with positive 12V power supply, electric capacity C4 positive pole, 1 pin of Voltage stabilizing module U2 connects, 3 pin of Voltage stabilizing module U2 respectively with electric capacity C5 positive pole, electric capacity C6 positive pole, positive 5V power supply connects, electric capacity C3 negative pole respectively with electric capacity C4 negative pole, 2 pin of Voltage stabilizing module U2, electric capacity C5 negative pole, electric capacity C6 negative pole, connect in analog.
3. vehicle-mounted single phase poaer supply fault warning as claimed in claim 1 and protective device, is characterized in that, described overvoltage/undervoltage testing circuit (2) is by resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, variable resistor RP1, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, diode D2, voltage stabilizing didoe D3, four road operational amplifier U3, isolated voltage transformer T1, positive 12V power supply composition, power supply input one end respectively with resistance R1 one end, resistance R2 one end connects, and the power supply input other end is connected with first siding ring one end of isolated voltage transformer T1, the first siding ring other end of isolated voltage transformer T1 respectively with the resistance R1 other end, the resistance R2 other end connects, second siding ring one end of isolated voltage transformer T1 respectively with resistance R3 one end, resistance R5 one end, electric capacity C7 positive pole, electric capacity C8 positive pole, 5 pin of four road operational amplifier U3 connect, the second siding ring other end of isolated voltage transformer T1 respectively with resistance R4 one end, electric capacity C8 negative pole, electric capacity C9 negative pole, 6 pin of four road operational amplifier U3 connect, the resistance R3 other end respectively with 4 pin of four road operational amplifier U3, resistance R11 one end, positive 12V power supply connects, electric capacity C5 negative pole respectively with the resistance R5 other end, connect in analog, the resistance R4 other end is connected with 1 pin of variable RP1,2 pin of variable resistor RP1 respectively with electric capacity C9 positive pole, electric capacity C10 positive pole, four road operational amplifier U3 7 pin connect, the resistance R11 other end is connected with resistance R10 one end, the resistance R10 other end respectively with resistance R6 one end, 3 pin of four road operational amplifier U3 connect, the resistance R6 other end respectively with 11 pin of four road operational amplifier U3, resistance R7 one end, connect in analog, the resistance R7 other end respectively with resistance R8 one end, four road operational amplifier U3 9 pin connect, electric capacity C10 negative pole respectively with resistance R15 one end, resistance R12 one end, resistance R13 one end connect, the resistance R15 other end be connected in analog, the resistance R12 other end respectively with diode D2 negative pole, 2 pin of four road operational amplifier U3 are connected with 12 pin, and diode D2 positive pole is connected with 1 pin of four road operational amplifier U3, the resistance R13 other end respectively with resistance R14 one end, four road operational amplifier U3 13 pin connect, the resistance R14 other end respectively with resistance 17 one end, four road operational amplifier U3 14 pin connect, the resistance R17 other end respectively with resistance R16 one end, electric capacity C12 positive pole connect, the resistance R16 other end respectively with electric capacity C11 positive pole, four road operational amplifier U3 10 pin connect, electric capacity C11 negative pole be connected in analog, electric capacity C12 negative pole respectively with resistance R18 one end, the resistance R8 other end, resistance R9 one end, four road operational amplifier U3 8 pin connect, the resistance R9 other end be connected in analog, the resistance R18 other end respectively with voltage stabilizing didoe D3 negative pole, electric capacity C13 positive pole, electric capacity C14 positive pole, resistance R19 one end connect, the resistance R19 other end respectively with output CY1, electric capacity C15 positive pole connect, voltage stabilizing didoe D3 positive pole respectively with electric capacity C13 negative pole, electric capacity C14 negative pole, electric capacity C15 negative pole, connect in analog.
4. vehicle-mounted single phase poaer supply fault warning as claimed in claim 1 and protective device, it is characterized in that, described over-current detection circuit (3) is by voltage stabilizing didoe D4, electric capacity C16, electric capacity C17, electric capacity C18, electric capacity C19, resistance R20, resistance R21 forms, current input terminal respectively with voltage stabilizing didoe D4 negative pole, electric capacity C16 positive pole, electric capacity C17 positive pole, resistance R20 one end, electric capacity C18 positive pole, resistance R21 one end connects, voltage stabilizing didoe D4 positive pole respectively with electric capacity C16 negative pole, electric capacity C17 negative pole, electric capacity C18 negative pole, the resistance R20 other end, electric capacity C19 negative pole, connect in analog, the resistance R21 other end respectively with electric capacity C19 positive pole, output DLCY connects.
5. vehicle-mounted single phase poaer supply fault warning as claimed in claim 1 and protective device, is characterized in that, described electric leakage and grounded inspection circuit (4) are by electric capacity C20, electric capacity C21, electric capacity C22, electric capacity C23, electric capacity C24, electric capacity C25, electric capacity C26, electric capacity C27, inductance L 1, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, resistance R32, resistance R33, diode D5, diode D6, voltage stabilizing didoe D7, diode D8, variable resistor RP2, variable resistor RP3, comparator U4, photoelectrical coupler B1, photoelectrical coupler B2, positive 12V power supply composition, test ground input respectively with electric capacity C20 positive pole, inductance L 1 one end connect, railway carriage ground input respectively with electric capacity C20 negative pole, digitally connect, inductance L 1 other end respectively with resistance R22 one end, resistance R26 one end, diode D5 positive pole, diode D6 negative pole connect, diode D6 negative pole respectively with resistance R29 one end, electric capacity C22 positive pole connect, the resistance R29 other end respectively with electric capacity C22 negative pole, digitally connect, diode D5 negative pole respectively with resistance R27 one end, electric capacity C21 positive pole connect, the resistance R27 other end respectively with resistance R28 one end, electric capacity C24 positive pole, resistance R30 one end, comparator U4 3 pin connect, electric capacity C21 negative pole respectively with the resistance R28 other end, electric capacity C24 negative pole, digitally connect, the resistance R30 other end is connected with diode D8 negative pole, diode D8 positive pole respectively with resistance R33 one end, 1 pin of comparator U4 connects, and the resistance R33 other end is connected with 1 pin of photoelectrical coupler B1,4 pin of comparator U4 be digitally connected, the resistance R26 other end respectively with resistance R31 one end, electric capacity C27 positive pole, 8 pin of comparator U4, positive 12 power supplys connect, electric capacity C27 negative pole be digitally connected, the resistance R31 other end respectively with 1 pin of variable resistor RP2, voltage stabilizing didoe D7 negative pole, electric capacity C25 positive pole, 1 pin of variable resistor RP3 connects, and 2 pin of variable resistor RP2 are connected with 2 pin of comparator U4,3 pin of variable resistor RP2 be digitally connected, the positive pole of voltage stabilizing didoe D7 respectively with electric capacity C25 negative pole, digitally connect, 2 pin of variable resistor RP3 respectively with 6 pin of comparator U4, electric capacity C26 negative pole connects, 3 pin of variable resistor RP3 be digitally connected, electric capacity C26 positive pole respectively with 7 pin of comparator U4, resistance R32 one end connect, the resistance R32 other end is connected with 1 pin of photoelectrical coupler B2, the resistance R22 other end respectively with electric capacity C20 positive pole, resistance R23 one end, resistance R24 one end connect, the resistance R24 other end respectively with resistance R25 one end, electric capacity C23 positive pole, comparator U4 5 pin connect, electric capacity C20 negative pole respectively with the resistance R23 other end, the resistance R25 other end, electric capacity C23 negative pole, digitally connect, 2 pin of photoelectrical coupler B1 be digitally connected, 3 pin of photoelectrical coupler B1 be connected in analog, 4 pin of photoelectrical coupler B1 are connected with output LD, 2 pin of photoelectrical coupler B2 be digitally connected, 3 pin of photoelectrical coupler B2 be connected in analog, 4 pin of photoelectrical coupler B2 are connected with output DX.
6. vehicle-mounted single phase poaer supply fault warning as claimed in claim 1 and protective device, it is characterized in that, described actuating mechanism circuit (9) is by electric capacity C28, relay K 1, triode Q1, electric capacity C29, resistance R34, resistance R35, positive 12V power supply composition, exchange control inputs one end respectively with electric capacity C28 positive pole, 1 pin of relay K 1 connects, exchange the control inputs other end respectively with electric capacity C28 negative pole, 2 pin of relay K 1 connect, 3 pin of relay K 1 are connected with positive 12V power supply, 4 pin of relay K 1 are connected with the collector electrode of triode Q1, the base stage of triode Q1 respectively with electric capacity C29 positive pole, resistance R34 one end connects, the resistance R34 other end respectively with resistance R35 one end, control end KZ1 connects, the emitter of triode Q1 respectively with electric capacity C29 negative pole, the resistance R35 other end, connect in analog.
7., as the vehicle-mounted single phase poaer supply fault warning as described in arbitrary in claim 1,2,3,4,5,6 and protective device, it is characterized in that, described main control singlechip (5) is PIC16F877A.
CN201520619927.3U 2015-08-18 2015-08-18 On -vehicle single phase power fault warning and protection device Expired - Fee Related CN204928081U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105652762A (en) * 2016-04-14 2016-06-08 北京中电万联科技股份有限公司 Vehicle-mounted power supplying and intelligent monitoring terminal
CN106058650A (en) * 2016-07-28 2016-10-26 江苏捷诚车载电子信息工程有限公司 Vehicle-mounted centralized-control intelligent power distribution device
CN109017631A (en) * 2018-06-27 2018-12-18 联合汽车电子有限公司 The sensor ground protection circuit of Vehicle Controller
CN112271695A (en) * 2020-12-14 2021-01-26 国网辽宁省电力有限公司盘锦供电公司 Intelligent safety protection power supply device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105652762A (en) * 2016-04-14 2016-06-08 北京中电万联科技股份有限公司 Vehicle-mounted power supplying and intelligent monitoring terminal
CN105652762B (en) * 2016-04-14 2018-07-31 北京中电万联科技股份有限公司 Vehicle-mounted power supply and intelligent monitoring terminal
CN106058650A (en) * 2016-07-28 2016-10-26 江苏捷诚车载电子信息工程有限公司 Vehicle-mounted centralized-control intelligent power distribution device
CN109017631A (en) * 2018-06-27 2018-12-18 联合汽车电子有限公司 The sensor ground protection circuit of Vehicle Controller
CN112271695A (en) * 2020-12-14 2021-01-26 国网辽宁省电力有限公司盘锦供电公司 Intelligent safety protection power supply device

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