CN110244176A - A kind of high-tension connector fault detection system and high-voltage power system - Google Patents
A kind of high-tension connector fault detection system and high-voltage power system Download PDFInfo
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- CN110244176A CN110244176A CN201910595120.3A CN201910595120A CN110244176A CN 110244176 A CN110244176 A CN 110244176A CN 201910595120 A CN201910595120 A CN 201910595120A CN 110244176 A CN110244176 A CN 110244176A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
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Abstract
The invention discloses a kind of high-tension connector fault detection system and high-voltage power systems, wherein, high-tension connector fault detection system includes: indicating circuit and main control unit, one high-tension connector is connect with a high voltage component, and the output end of high-voltage electricity is connect with the high pressure end of incoming cables of multiple high-tension connectors thinks that high voltage component is powered；The first end of the hollow circle of high-tension connector is connect with the input terminal of indicating circuit and main control unit, and the second end of hollow circle is grounded to constitute circuit.It may be implemented by this system when detecting that the high-tension connector in circuit breaks down, only influence failure high-tension connector and component, reduce the coverage of failure high-tension connector；It indicates specific failure high-tension connector, reduces maintenance workload；In the working condition of main control unit end monitoring high-tension connector, unified monitoring is realized.In addition, high-voltage power system provided by the present invention includes high-tension connector fault detection system, effect is same as above.
Description
Technical field
The present invention relates to high-tension apparatus component technology fields, more particularly to a kind of full isolation high-tension connector fault detection
System and full isolation high-voltage power system.
Background technique
With the rapid development of power electronics industry, high-voltage safety is increasingly becoming people's emphasis and considers the problems of, due to work
The safe voltage 36V that the high direct voltage that industry uses can bear far more than human body, so in order to avoid Danger Electric shock risk, it is necessary to really
The high-tension connector protected in high-tension circuit is firm safely.The safety and reliability that circuit is connected for enhancing high pressure, introduces height
Pressure interlocking detection system.
The structure of existing high-voltage interlocking detection circuit is as shown in Figure 1.The output end of high-tension battery packet 1 exports a pulse
Signal, the pulse signal enter high voltage electric device 2 from the low-pressure end harness of high voltage electric device 2, then by high voltage electric device 2
High-tension connector 3 on hollow circle 4 return to another low-pressure end harness of high voltage electric device 2, following pulse signal is according to phase
Same mode sequentially passes through each concatenated high voltage electric device, the feedback end until returning to high-tension battery packet 1.High-voltage interlocking inspection
The testing principle of slowdown monitoring circuit is: the transmitting terminal of high-tension battery packet sends pulse signal, and the feedback end of high-tension battery packet is to high-voltage electricity
The pulse signal that Chi Bao is issued is detected, if feedback end detects pulse signal, illustrates the hollow on high-tension connector
High-voltage interlocking detection circuit is connected into closed circuit by circle, and the high-tension connector connection of each high voltage electric device is normal；If anti-
Pulse signal is not detected in feedback end, then illustrates faulty high-tension connector in detection circuit.
Since existing high-voltage interlocking detection circuit connects the hollow coil of each high-tension connector, so when detection electricity
In road when faulty high-tension connector, open circuit occurs for circuit, and all high voltage components with high-tension connector include its in circuit
The high voltage component of his trouble-free high-tension connector can not all work, and fault incidence is big, while high-voltage interlocking detection electricity
Road can not detect specifically which high-tension connector breaks down, and need manually to use multimeter to each high-tension connector
Circuit is detected, and can not be positioned in time to failure high-tension connector.
Summary of the invention
The object of the present invention is to provide a kind of full isolation high-tension connector fault detection systems, to realize that high-tension connector is sent out
Failure high-tension connector and component are only influenced when raw failure, other trouble-free high-tension connectors and component still can normal works
Make, reduces the coverage of failure, while positioning to failure high-tension connector, fast and easy maintenance, in main control unit
The working condition of end monitoring high-tension connector, realizes unified monitoring.
To achieve the above object, the present invention provides a kind of full isolation high-tension connector fault detection system, comprising: instruction electricity
Road and main control unit；
One high-tension connector is connect with a high voltage component, the output end of high-voltage electricity and multiple high-tension connectors
The high voltage component power supply is thought in the connection of high pressure end of incoming cables；
The first end of the hollow circle of the high-tension connector and the input terminal of the indicating circuit and the main control unit
The second end of connection, the hollow circle is grounded to constitute circuit.
Preferably, further includes: high-voltage electricity output detection circuit；
The first end of the high-voltage electricity output detection circuit is connect with the output end of the high-voltage electricity, the high pressure electricity output
The second end of detection circuit is connect with the input terminal of the main control unit.
Preferably, the indicating circuit specifically includes: the first indicating device and first resistor；
The first end of first indicating device is connect with the first end of the hollow circle, and the of first indicating device
Two ends are connect with the first end of the first resistor, and the second end of the first resistor and the first output end of power supply connect.
Preferably, further include optical coupling isolation circuit, the optical coupling isolation circuit specifically includes: second resistance, 3rd resistor,
First optocoupler；
The anode of first luminous tube of first optocoupler is connect with the first output end of the power supply, and described first shines
The cathode of pipe is connect with the first end of the 3rd resistor, and the first end of the second end of the 3rd resistor and the hollow circle connects
Connect, the collector of the first triode of first optocoupler and the first end of the second resistance and the main control unit it is defeated
Enter end connection, the second end of the second resistance is connect with the second output terminal of the power supply, the transmitting of first triode
Pole ground connection.
Preferably, further includes: high-voltage driving circuit, the first end of the high-voltage driving circuit and the high pressure end of incoming cables connect
It connects, the second end of the high-voltage driving circuit is connect with the control output end of the main control unit, for according to the control
The control output signal of output end controls whether the high-voltage electricity accesses the high pressure end of incoming cables.
Preferably, the high-voltage driving circuit includes: the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, Xiao Te
Based diode, anti-reverse diode, third transistor, the second optocoupler, relay, the second indicating device；
The control output end is connect with the first end of the 5th resistance, the second end of the 5th resistance and described the
The anode of second luminous tube of two optocouplers connects, the minus earth of second luminous tube；
First output end of the power supply is connect with the first end of the 4th resistance, the second end of the 4th resistance with
The first end of second indicating device connects, and the first of the second end of second indicating device and the anti-reverse diode
End connection, the second end of the anti-reverse diode are connect with the collector of the third transistor；
First output end of the power supply is connect with the collector of the second triode of second optocoupler, and the described 2nd 3
The emitter of pole pipe is connect with the first end of the 6th resistance, second end and the third transistor of the 6th resistance
Base stage is connected with the first end of the 7th resistance, and the emitter of the second end and the third transistor of the 7th resistance connects
Ground；
The first end of the coil of the first output end and relay of the power supply and the yin of the Schottky diode
Pole connection, the current collection of the anode and the third transistor of the second end of the coil of the relay and the Schottky diode
Pole connection.
Preferably, the power supply specifically includes: the first patch capacitor, the second patch capacitor, the first electrolytic capacitor, the second electricity
Solve capacitor, inductance, DC/DC converter and Y capacitance；
First output end of the power supply and the first end of the inductance, the first end of first electrolytic capacitor and described
The first end of first patch capacitor connects, the second termination of the second end of first electrolytic capacitor and first patch capacitor
Ground, the second end of the inductance connect the input terminal of the DC/DC converter；
The first of the second output terminal of the output end of the DC/DC converter and the power supply, second electrolytic capacitor
End is connected with the first end of second patch capacitor, the second end of second electrolytic capacitor and second patch capacitor
Second end ground connection；
First ground terminal of the DC/DC converter and the first end ground connection of the Y capacitance, the second end of the Y capacitance
It is grounded with the second ground terminal of the DC/DC converter.
Preferably, further includes: digital isolating chip, serial ports conversion chip and host computer；
The communication output of the main control unit, the digital isolating chip, the serial ports conversion chip and it is described on
Position machine is sequentially connected, for monitoring the working condition of each high-tension connector in real time.
Preferably, first indicating device and second indicating device are specially indicator light.
To achieve the above object, the present invention also provides a kind of full isolation high-voltage power systems, including high voltage component and high pressure
Connector further includes above-mentioned full isolation high-tension connector fault detection system.
Full isolation high-tension connector fault detection system provided by the present invention, including indicating circuit and main control unit,
Specific connection type is access high-tension circuit in parallel after high voltage component is connect with high-tension connector, the hollow circle of high-tension connector
First end is connected with corresponding indicating circuit and main control unit.Due to high voltage component access high-voltage electricity in parallel with high-tension connector
Road, so, when detecting that the high-tension connector in circuit breaks down, only influence failure high-tension connector and component, non-event
Barrier high-tension connector and component still can work normally, and reduce the coverage of failure high-tension connector；In addition, high-tension connector
It is connected with corresponding indicating circuit, can indicate that specific failure high-tension connector, do not need manually to use multimeter to each
High-tension connector circuit is detected, and maintenance workload is reduced；Finally, high-tension connector is connect with main control unit, Ke Yi
Main control unit end monitors the working condition of high-tension connector, realizes unified monitoring.
A kind of full isolation high-voltage power system provided by the present invention includes full isolation high-tension connector fault detection system
Therefore system equally has above-mentioned beneficial effect.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly, attached drawing needed in the embodiment will be done simply below
It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people
For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure of the high-voltage interlocking detection circuit of the prior art；
Fig. 2 is a kind of full isolation high-tension connector fault detection system structure chart provided in an embodiment of the present invention；
Fig. 3 is another full isolation high-tension connector fault detection system structure chart provided in an embodiment of the present invention；
Fig. 4 is a kind of interlock detection circuit schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of high-voltage driving circuit schematic diagram provided in an embodiment of the present invention；
Fig. 6 is a kind of power circuit principle figure provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are without making creative work, obtained every other
Embodiment belongs to the scope of the present invention.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 2 is a kind of structure chart of full isolation high-tension connector fault detection system provided in an embodiment of the present invention.Such as Fig. 2
Shown, full high-tension connector fault detection system of being isolated includes: indicating circuit 1,2,3 and main control unit 10；High-voltage electricity it is defeated
The high-voltage electricity that outlet is exported is connected by the high pressure end of incoming cables of high-tension connector 1,2,3 with corresponding high voltage component 1,2,3；It is high
The first end of the hollow circle of connector 1,2,3 is pressed to connect respectively with indicating circuit 1,2,3, the hollow circle of high-tension connector 1,2,3
First end connect with main control unit 10, the second end of the hollow circle of high-tension connector 1,2,3 ground connection.
When high-tension connector 1 connects normal, indicating circuit 1 is connect with the first end of the hollow circle of high-tension connector 1, high
Press the second end ground connection of the hollow circle of connector 1 to constitute circuit, indicating circuit 1 works, and the input terminal of main control unit 10 is received
To the signal (voltage signal etc., this embodiment is not limited) in the circuit, show that high-tension connector 1 is normal；
When 1 malunion of high-tension connector is normal or not connected, the of the hollow circle of indicating circuit 1 and high-tension connector 1
One end connection, the second end ground connection of the hollow circle of high-tension connector 1, since 1 malunion of high-tension connector is normal or not connected, institute
Circuit is not constituted at hollow circle with indicating circuit 1, and indicating circuit 1 does not work, and main control unit 10 receives the another of the circuit
Signal shows that high-tension connector 1 is abnormal or not connected；
When high-tension connector 2 connects normal, indicating circuit 2 is connect with the first end of the hollow circle of high-tension connector 2, high
Press the second end ground connection of the hollow circle of connector 2 to constitute circuit, indicating circuit 2 works, and the input terminal of main control unit 10 is received
To the signal in the circuit, show that high-tension connector 2 is normal；
When 2 malunion of high-tension connector is normal or not connected, the of the hollow circle of indicating circuit 2 and high-tension connector 2
One end connection, the second end ground connection of the hollow circle of high-tension connector 2, since 2 malunion of high-tension connector is normal or not connected, institute
Circuit is not constituted at hollow circle with indicating circuit 2, and indicating circuit 2 does not work, and main control unit 10 receives the another of the circuit
Signal shows that high-tension connector 2 is abnormal or not connected；
When high-tension connector 3 connects normal, indicating circuit 3 is connect with the first end of the hollow circle of high-tension connector 3, high
Press the second end ground connection of the hollow circle of connector 3 to constitute circuit, indicating circuit 3 works, and the input terminal of main control unit 10 is received
To the signal in the circuit, show that high-tension connector 3 is normal；
When 3 malunion of high-tension connector is normal or not connected, the of the hollow circle of indicating circuit 3 and high-tension connector 3
One end connection, the second end ground connection of the hollow circle of high-tension connector 3, since 3 malunion of high-tension connector is normal or not connected, institute
Circuit is not constituted at hollow circle with indicating circuit 3, and indicating circuit 3 does not work, and main control unit 10 receives the another of the circuit
Signal shows that high-tension connector 3 is abnormal or not connected.
Whether worked just by indicating circuit 1,2,3 can determine its corresponding high-tension connector 1,2,3 whether failure.Separately
Outside, it being connect due to high-voltage electricity output end with high-tension connector 1,2,3, high-tension connector 1,2,3 is mutually indepedent, so whichever
High-tension connector is abnormal or the not connected normal work for not affecting other high-tension connectors and high voltage component, in addition, high pressure
Connector 1,2,3 is connect with main control unit 10, can 10 end of main control unit by the signal processing to above-mentioned circuit into
The unified monitoring of the working condition of horizontal high voltage connector 1,2,3.
It should be noted that the quantity of the high voltage component access high-tension circuit in the present invention can carry out according to the actual situation
Adjustment, it is not limited to 3 in the present embodiment, correspondingly, each high voltage component in high-tension circuit is separately connected a height
Connector is pressed, the first end of the hollow circle of each high-tension connector connects with the input terminal of corresponding indicating circuit and main control unit 10
It connects, the second end ground connection of hollow circle；Indicating circuit 1,2,3 in the present invention is same indicating circuit, the high pressure in the present invention
Connector 1,2,3 is also same type of high-tension connector.
It in the present embodiment, can be by multiple high when detecting that the high-tension connector in high-tension circuit breaks down
The parallel connection of splenium part makes the coverage of failure only secondary failure high-tension connector and its component, non-faulting high-tension connector and portion
Part still can work normally, and reduce the coverage of failure high-tension connector；High-tension connector is connected with corresponding indicating circuit, can
To indicate specific failure high-tension connector, do not need that multimeter is manually used to examine each high-tension connector circuit
It surveys, reduces maintenance workload；Finally, high-tension connector is connect with main control unit, high pressure can be monitored at main control unit end
The working condition of connector realizes unified monitoring.
Fig. 3 is another full isolation high-tension connector fault detection system structure chart provided in an embodiment of the present invention.Upper
On the basis of stating embodiment, in another embodiment, further includes: high-voltage electricity output detection circuit 20 is examined by high pressure electricity output
Slowdown monitoring circuit 20 can detecte whether high-voltage electricity output end normally exports high-voltage electricity, exclude 0 place high-tension circuit of high-tension connector not
It accesses high-tension connector 1,2,3 caused by high-voltage electricity and does not access high-tension circuit normally.As shown in figure 3, high pressure electricity output detection electricity
The first end on road 20 and the output end of high-voltage electricity connect, second end and the main control unit 10 of high-voltage electricity output detection circuit 20
Input terminal connection.
It should be noted that the specific connection type of High voltage output detection circuit 20 is the high pressure inlet wire of high-tension connector 0
End is connect with the output end of high-voltage electricity, the first end of the hollow circle of high-tension connector 0 and indicating circuit 0 and main control unit 10
The second end of input terminal connection, hollow circle is grounded to constitute circuit；High-tension connector 0 and high-tension connector 1,2 and 3 are same class
The high-tension connector of type, indicating circuit 0 and indicating circuit 1,2,3 are also same type of indicating circuit, pass through high-tension connector 0
Connection with indicating circuit 0 indicates whether the output end of high-voltage electricity normally exports high-voltage electricity.
When high-tension connector 0 connects normal, if main control unit 10 receives signal, show the output end of high-voltage electricity
Normal output high-voltage electricity；Otherwise, main control unit 10 receives another signal, and it is high to show that the output end of high-voltage electricity does not export normally
The output end of piezoelectricity or high-voltage electricity does not export high-voltage electricity；
High-voltage detecting circuit in present embodiment is for detecting whether high-voltage electricity output end breaks down, high pressure detection electricity
Road connect the output state for monitoring high-voltage electricity with main control unit.
Fig. 4 is a kind of interlock detection circuit schematic diagram provided in an embodiment of the present invention.As shown in the indicating circuit 60 of Fig. 4,
Indicating circuit 60 specifically includes: the first indicating device LED1 and first resistor R1, the first end of the first indicating device LED1 with return
The first end of type circle connects, and the second end of the first indicating device LED1 is connect with the first end of first resistor R1, first resistor R1
Second end and power supply the first output end VCC1 connection.
When high-tension connector connection is normal, when power supply works normally, the first output end VCC1 and first resistor R1 of power supply,
The first end of first indicating device LED1 and hollow circle is sequentially connected, and constitutes circuit by the second end ground connection of hollow circle, at this time
First indicating device LED1 work；
When high-tension connector is abnormal or not connected, and power supply works normally, the first output end VCC1 of power supply and first
The first end of resistance R1, the first indicating device LED1 and hollow circle are sequentially connected, since high pressure malunion is normal or not connected, institute
To occur open circuit at hollow circle, the first indicating device LED1 does not work at this time.
It should be noted that the first indicating device is specially LED1 in the present embodiment, but the first indicating device can also be with
It is other indicating devices such as buzzer, it is not limited to LED1.
Whether the indicating circuit in present embodiment is used to indicate the high-tension connector being attached thereto normal, if first refers to
Show that device works, then it is normal to correspond to high-tension connector, conversely, corresponding high-tension connector is not connected or abnormal.
It on the basis of the above embodiments, in another embodiment further include optical coupling isolation circuit 70 as shown in Figure 4, light
Coupling isolation circuit 70 specifically includes: second resistance R2,3rd resistor R3, the first optocoupler U；The first luminous tube of first optocoupler U
First output end of anode and power supply connects VCC1, and the cathode of the first luminous tube is connect with the first end of 3rd resistor R3, third
The second end of resistance R3 is connect with the first end of hollow circle, the collector and second resistance R2 of the first triode of the first optocoupler U
First end connected with the input terminal of main control unit 10, the second output terminal VCC2 of the second end of second resistance R2 and power supply connects
It connects, the emitter ground connection of the first triode.
It should be noted that connection structure of the optical coupling isolation circuit 70 in isolation high-tension connector fault detection system entirely
As shown in figure 3, the first end of optical coupling isolation circuit 1,2,3 is connect with the hollow circle first end of high-tension connector 1,2,3, optocoupler every
Second end from circuit 1,2,3 is connect with main control unit 10；1,2,3 role of optical coupling isolation circuit is electrical isolation.
As shown in the optical coupling isolation circuit 70 of Fig. 4, when high-tension connector connection is normal, when power supply works normally, power supply
The first end of the luminous tube of first output end VCC1 and the first optocoupler U, 3rd resistor R3 and hollow circle is sequentially connected, and passes through hollow
The second end ground connection of circle constitutes circuit, and the input terminal Vin of the first optocoupler U conducting, main control unit 10 receives low level；
When high-tension connector is not connected or abnormal, when power supply works normally, the first output end VCC1 of power supply and first
The first end of the luminous tube of optocoupler U, 3rd resistor R3 and hollow circle is sequentially connected, since high-tension connector is not connected or not just
Often, so forming open circuit at hollow circle, the first optocoupler U is not turned on, the second output terminal VCC2 and second resistance R2 of power supply and
The input terminal Vin of main control unit 10, which is sequentially connected, constitutes circuit, and the input terminal Vin of main control unit 10 receives high level.
The effect of optical coupling isolation circuit in present embodiment is galvanically isolated, and enhances the anti-interference ability of circuit system.
On the basis of the above embodiments, further include in another embodiment high-voltage driving circuit as shown in Figure 31,2,
3, the effect of high-voltage driving circuit 1,2,3 is whether the high pressure end of incoming cables of control high-tension connector 1,2,3 accesses high-tension circuit.Such as
Shown in Fig. 3, the high pressure end of incoming cables of the first end connection high-tension connector 1,2,3 of high-voltage driving circuit 1,2,3, high-voltage driving circuit
1, the control output end of 2,3 second end connection main control unit 10.
Fig. 5 is a kind of high-voltage driving circuit schematic diagram provided in an embodiment of the present invention, as shown in figure 5, high-voltage driving circuit
It include: the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, Schottky diode D1, anti-reverse diode
D2, third transistor Q1, the second optocoupler U2, relay K1, the second indicating device LED2；The control output end of main control unit 10
It is connect with the first end of the 5th resistance R5, the anode of the second luminous tube of the second end of the 5th resistance R5 and the second optocoupler U2 connects
It connects, the minus earth of the second luminous tube；First output end VCC1 of power supply is connect with the first end of the 4th resistance R4, the 4th resistance
The second end of R4 is connect with the first end of the second indicating device LED2, the second end of the second indicating device LED2 and anti-reverse two pole
The first end of pipe D2 connects, and the second end of anti-reverse diode D2 is connect with the collector 3 of third transistor Q1；The first of power supply
Output end VCC1 is connect with the collector of the second triode of the second optocoupler U2, the emitter of the second triode and the 6th resistance R6
First end connection, the second end of the 6th resistance R6 connect with the first end of the base stage 1 of third transistor Q1 and the 7th resistance R7,
The second end of 7th resistance R7 and the emitter 2 of third transistor Q1 are grounded；The the first output end VCC1 and relay K1 of power supply
The first end A1 of coil connected with the cathode of Schottky diode D1, the second end A2 and Schottky two of the coil of relay K1
The anode of pole pipe D1 is connect with the collector 3 of third transistor Q1.
When power supply works normally, and high-tension connector connection is normal, the control output end Vout output of main control unit 10
The luminous tube of high level, the second optocoupler U2 shines, and the second optocoupler U2 conducting, the second indicating device LED2 is bright at this time, the three or three pole
Pipe Q1 obtains high level, and third transistor Q1 is connected to form closed circuit, relay K1 work, high-voltage signal HV_IN and HV_
OUT is connected, and the high voltage input terminal of high-tension connector accesses high-tension circuit.
When power supply works normally, and high-tension connector is not connected or abnormal, the control output end of main control unit 10
Output signal or output low level, the luminous tube of the second optocoupler U2 do not shine Vout, and the phototriode of the second optocoupler U2 is not
Conducting forms open circuit, and the second indicating device LED2 goes out at this time, and relay K1 does not work, high-voltage signal HV_IN and HV_OUT not phase
Even, the high voltage input terminal of high-tension connector does not access high-voltage electricity.
Preferably embodiment, relay K1 select dry contact to pick out, and high-tension circuit can be selected according to actual needs
The type of relay has stronger compatibility so that the high pressure for being not limited to input is exchange or direct current.
Whether the present embodiment controls the access of high-voltage electricity by high-voltage driving circuit, if high-tension connector breaks down,
Then high-voltage safety is not further ensured that the high voltage component conveying high-pressure electricity being attached thereto.
Fig. 6 is a kind of power circuit principle figure provided in an embodiment of the present invention.On the basis of the above embodiments, such as Fig. 6
Shown, power supply specifically includes: the first patch capacitor C1, the second patch capacitor C2, the first electrolytic capacitor C3, the second electrolytic capacitor
C4, inductance L1, DC/DC converter U3 and Y capacitance CY1；The first end of the first output end VCC1 and inductance L1 of power supply, the first electricity
The first end of solution capacitor C3 is connected with the first end of the first patch capacitor C1, the second end and the first patch of the first electrolytic capacitor C3
The second end of capacitor C1 is grounded, the input terminal 1 of the second end connection DC/DC converter U3 of inductance L1；DC/DC converter U3's is defeated
The first end of the second output terminal VCC2 of outlet 4 and power supply, the first end of the second electrolytic capacitor C4 and the second patch capacitor C2 connect
It connects, the second end ground connection of the second end of the second electrolytic capacitor C4 and the second patch capacitor C2；The first ground wire of DC/DC converter U3
Hold the first end ground connection of 2 and Y capacitance CY1, the second end of Y capacitance CY1 and the second ground terminal 3 ground connection of DC/DC converter U3.
Preferably embodiment, DC/DC converter U3 select R2S-1105/H, which is isolated DC/DC,
Working efficiency is up to 85%, is encapsulated using 8-SMD module (5 lead), small in size.
Mono- tunnel the first output end VCC1 of power supply is directly the members such as the first optocoupler U, the side of the second optocoupler U2, relay K1
Part provides operating voltage, the LC filter circuit constituted all the way by the first electrolytic capacitor C3, the first patch capacitor C1 and inductance L1
The input terminal 1 of DC/DC converter U3 is inputted afterwards, and the output end 4 of DC/DC converter U3 passes through the second electrolytic capacitor C2 and second
After the middle low-frequency filter circuit that electrolytic capacitor C4 is constituted, output voltage VCC2, the other side and the main control list for being the first optocoupler U
Member 10 provides operating voltage.To eliminate common mode interference, connect a Y capacitance CY1 between two ground wires of DC/DC converter U3.
The present embodiment has carried out the conversion of supply voltage by power circuit to meet the needs of different electronic components, and leads to
Cross the anti-interference ability that included filter circuit improves circuit.
On the basis of the above embodiments, as shown in figure 3, further including digital isolating chip 30,40 and of serial ports conversion chip
Host computer 50；The communication output of main control unit 10, digital isolated core 30, serial ports conversion chip 40 and host computer 50 are successively
Connection realizes the serial communication with host computer 50, monitors the working condition of each high-tension connector 1,2,3 in real time, convenient for inspection in time
It repairs.
On the basis of the above embodiments, preferably embodiment, the first indicating device and the second indicating device have
Body is indicator light, indicator light can intuitively show high-tension connector whether failure.
In above embodiments, the first optocoupler U and the second optocoupler U2 select LTV-817S, and input and output isolation voltage reaches
5000Vrms, response time 4us are the good photoelectrical couplers of a isolation effect；Relay K1 selects RTB14012F, line
Voltage 12V, coil resistance 360Ohms are enclosed, includes a normally opened contact NO, a normally-closed contact NC, switches voltage 250VAC；Number
Word isolating chip 30 selects ADuM2211SRIZ standard digital isolating chip, is produced by ANALOG DEVICES, two-channel digital
Isolation, highest isolation voltage 5kV, under different supply voltages, the baud rate of data transmit-receive is also different；Serial ports conversion chip 40
FT232RL-Tube is selected, it can be achieved that a conversion chip that the signal of UART to USB is converted, compatible USB2.0 is at full speed.
The elements such as optocoupler used in the present invention, transistor, relay, digital isolating chip, serial ports conversion chip are not
It is confined to element model in text, according to specific technique and actual demand, other alternative elements can be chosen.
It is understood that if the full isolation high-tension connector fault detection system in above-described embodiment is as independent
Product when selling or using, can be applied in a kind of full isolation high-voltage power system.Based on this understanding, the present invention provides
A kind of full isolation high-voltage power system, including high voltage component and high-tension connector further include that full isolation provided by the invention is high
Press connector fault detection system.Since high pressure provided by the present invention connection circuit includes full isolation high-tension connector failure
Therefore detection system equally has above-mentioned beneficial effect.
Above to a kind of full isolation high-tension connector fault detection system provided by the present invention and full isolation high voltage electric
System is described in detail.Each embodiment is described in a progressive manner in specification, what each embodiment stressed
It is the difference from other embodiments, the same or similar parts in each embodiment may refer to each other.For embodiment
For disclosed device, since it is corresponded to the methods disclosed in the examples, so be described relatively simple, related place referring to
Method part illustration.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
Protection scope in.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Claims (10)
1. a kind of full isolation high-tension connector fault detection system characterized by comprising indicating circuit and main control unit；
One high-tension connector is connect with a high voltage component, the high pressure of the output end of high-voltage electricity and multiple high-tension connectors
The high voltage component power supply is thought in end of incoming cables connection；
The first end of the hollow circle of the high-tension connector is connect with the input terminal of the indicating circuit and the main control unit,
The second end of the hollow circle is grounded to constitute circuit.
2. full isolation high-tension connector fault detection system as described in claim 1, which is characterized in that further include: high-voltage electricity
Output detection circuit；
The first end of the high-voltage electricity output detection circuit is connect with the output end of the high-voltage electricity, the high pressure electricity output detection
The second end of circuit is connect with the input terminal of the main control unit.
3. full isolation high-tension connector fault detection system as described in claim 1, which is characterized in that the indicating circuit tool
Body includes: the first indicating device and first resistor；
The first end of first indicating device is connect with the first end of the hollow circle, the second end of first indicating device
It is connect with the first end of the first resistor, the second end of the first resistor and the first output end of power supply connect.
4. full isolation high-tension connector fault detection system as claimed in claim 3, which is characterized in that further include light-coupled isolation
Circuit, the optical coupling isolation circuit specifically include: second resistance, 3rd resistor, the first optocoupler；
The anode of first luminous tube of first optocoupler is connect with the first output end of the power supply, first luminous tube
Cathode is connect with the first end of the 3rd resistor, and the second end of the 3rd resistor is connect with the first end of the hollow circle,
The input of the collector of first triode of first optocoupler and the first end of the second resistance and the main control unit
End connection, the second end of the second resistance are connect with the second output terminal of the power supply, the emitter of first triode
Ground connection.
5. full isolation high-tension connector fault detection system as claimed in claim 4, which is characterized in that further include: high pressure is driven
Dynamic circuit, the first end of the high-voltage driving circuit are connect with the high pressure end of incoming cables, the second end of the high-voltage driving circuit
It is connect with the control output end of the main control unit, for according to the control of the control output signal of the control output end
Whether high-voltage electricity accesses the high pressure end of incoming cables.
6. full isolation high-tension connector fault detection system as claimed in claim 5, which is characterized in that the high drive electricity
Road includes: the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, Schottky diode, anti-reverse diode, the three or three pole
Pipe, the second optocoupler, relay, the second indicating device；
The control output end is connect with the first end of the 5th resistance, the second end of the 5th resistance and second light
The anode of second luminous tube of coupling connects, the minus earth of second luminous tube；
First output end of the power supply is connect with the first end of the 4th resistance, the second end of the 4th resistance with it is described
The first end of second indicating device connects, and the first end of the second end of second indicating device and the anti-reverse diode connects
It connects, the second end of the anti-reverse diode is connect with the collector of the third transistor；
First output end of the power supply is connect with the collector of the second triode of second optocoupler, second triode
Emitter connect with the first end of the 6th resistance, the base stage of the second end of the 6th resistance and the third transistor
It is connected with the first end of the 7th resistance, the second end of the 7th resistance and the emitter of the third transistor are grounded；
The first end of the coil of the first output end and relay of the power supply and the cathode of the Schottky diode connect
It connects, the collector of the anode of the second end of the coil of the relay and the Schottky diode and the third transistor connects
It connects.
7. full isolation high-tension connector fault detection system as claimed in claim 6, which is characterized in that the power supply specifically wraps
It includes: the first patch capacitor, the second patch capacitor, the first electrolytic capacitor, the second electrolytic capacitor, inductance, DC/DC converter and Y electricity
Hold；
First output end of the power supply and first end, the first end and described first of first electrolytic capacitor of the inductance
The first end of patch capacitor connects, the second end ground connection of the second end of first electrolytic capacitor and first patch capacitor,
The second end of the inductance connects the input terminal of the DC/DC converter；
The second output terminal of the output end of the DC/DC converter and the power supply, the first end of second electrolytic capacitor and
The first end of second patch capacitor connects, and the second of the second end of second electrolytic capacitor and second patch capacitor
End ground connection；
First ground terminal of the DC/DC converter and the first end ground connection of the Y capacitance, the second end of the Y capacitance and institute
State the second ground terminal ground connection of DC/DC converter.
8. isolation high-tension connector fault detection system as described in claim 1 complete, which is characterized in that further include: number every
Off-chip piece, serial ports conversion chip and host computer；
The communication output of the main control unit, the digital isolating chip, the serial ports conversion chip and the host computer
It is sequentially connected, for monitoring the working condition of each high-tension connector in real time.
9. full isolation high-tension connector fault detection system as claimed in claim 7, which is characterized in that first indicator
Part and second indicating device are specially indicator light.
10. a kind of full isolation high-voltage power system, including high voltage component and high-tension connector, which is characterized in that further include right
It is required that full isolation high-tension connector fault detection system described in 1-9 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910595120.3A CN110244176A (en) | 2019-07-03 | 2019-07-03 | A kind of high-tension connector fault detection system and high-voltage power system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595120.3A CN110244176A (en) | 2019-07-03 | 2019-07-03 | A kind of high-tension connector fault detection system and high-voltage power system |
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| CN110244176A true CN110244176A (en) | 2019-09-17 |
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| CN201910595120.3A Pending CN110244176A (en) | 2019-07-03 | 2019-07-03 | A kind of high-tension connector fault detection system and high-voltage power system |
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| CN110843529A (en) * | 2019-10-10 | 2020-02-28 | 珠海格力电器股份有限公司 | High-voltage interlocking fault self-diagnosis circuit, control method and new energy automobile |
| CN113241744A (en) * | 2021-06-09 | 2021-08-10 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Control loop of switch device in transformer substation |
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| DE102016222271A1 (en) * | 2016-11-14 | 2018-05-17 | Volkswagen Aktiengesellschaft | Circuit arrangement for controlling a charging socket of an electric or hybrid vehicle and charging plug |
| CN109143058A (en) * | 2018-09-30 | 2019-01-04 | 浙江英洛华新能源科技有限公司 | The energy saving auxiliary contact for detecting high-voltage relay contact on-off detect feed circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102016222271A1 (en) * | 2016-11-14 | 2018-05-17 | Volkswagen Aktiengesellschaft | Circuit arrangement for controlling a charging socket of an electric or hybrid vehicle and charging plug |
| CN108037449A (en) * | 2018-01-03 | 2018-05-15 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage circuitbreaker automatic checkout system |
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| CN110843529A (en) * | 2019-10-10 | 2020-02-28 | 珠海格力电器股份有限公司 | High-voltage interlocking fault self-diagnosis circuit, control method and new energy automobile |
| CN113241744A (en) * | 2021-06-09 | 2021-08-10 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Control loop of switch device in transformer substation |
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Application publication date: 20190917 |