CN103928905B - A kind of charging device of new-energy automobile - Google Patents
A kind of charging device of new-energy automobile Download PDFInfo
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- CN103928905B CN103928905B CN201410123213.3A CN201410123213A CN103928905B CN 103928905 B CN103928905 B CN 103928905B CN 201410123213 A CN201410123213 A CN 201410123213A CN 103928905 B CN103928905 B CN 103928905B
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Abstract
Electronics field of the present invention, there is provided a kind of charging device of new-energy automobile, the charging device includes connection-peg, control board, tripping mechanism and socket, the connection-peg is contacted with the tripping mechanism, the connection-peg is electrically connected with the tripping mechanism, and in the control board, the tripping mechanism is electrically connected with the control board to the de- mouth mechanism, the socket is contacted with the control board, and the socket is electrically connected with the control board.This charging device product function is clear, compact conformation, safeguard simple and convenient.
Description
Technical field
The invention belongs to electronics field, more particularly to a kind of charging device of new-energy automobile.
Background technology
In real life, when being charged to new-energy automobile, the energized conductor in electric equipment products electric loop ---
Short circuit between zero line and live wire, the earth, electrical appliance enclosure and various grounded metal pipelines or other conductors, or conductor
Insulation against ground resistance may all occur earthing failure when being less than setting, and earthing failure can cause excessively stream, so as to fire can be caused
Or risk of shock, in order to avoid this risk, it is necessary to a kind of earth leakage protective charging device for preventing earthing failure.
This earth leakage protective charging device is installed between power supply and new-energy automobile, and its effect is by inspection
The potential difference surveyed between phase line and zero line is come the risk that determines whether to have electric leakage.Once there are electric leakage feelings in detecting circuit
Condition, trips immediately, the connection cut off the electricity supply between load, to avoid triggering due to electric leakage the risk of disaster.
When there is leakage current in charging in new-energy automobile, although existing charging device can deenergization and load well
Connection, but error rate is generally higher, often occur some should not break-make when tripping；Meanwhile, existing earth leakage protective
Charging device properties of product are unstable, through being commonly present overheat until burning and safety problem.
The content of the invention
The present invention provides a kind of charging device of new-energy automobile, it is intended to solve existing earth leakage protective charging device product
Unstable properties, through be commonly present overheat until burn and safety problem.
The present invention is achieved in that a kind of charging device of new-energy automobile, and the charging device includes connection-peg, control
Circuit board, tripping mechanism and socket, the connection-peg are contacted with the tripping mechanism, and the connection-peg is electrically connected with the dropout
Mechanism, the de- mouth mechanism is in the control board, and the tripping mechanism is electrically connected with the control board, described
Socket is contacted with the control board, and the socket is electrically connected with the control board.
Further technical scheme of the invention is：The charging device also includes protection shell, and the protection shell includes upper
Housing and lower house, the connection-peg are fixed in the lower house through the lower house bottom surface, the tripping mechanism and control
Circuit board processed is fixed in the lower house, and the upper shell bolt is fixed on the lower house, and the upper shell is located at
One snap open, the socket is fixed in the snap open and is fixed on upper shell.
Further technical scheme of the invention is：The tripping mechanism includes shell body, located at the intrinsic electromagnetic wire of shell
Circle, the cylindrical magnetic core in the magnet coil, the magnetic core front end is provided with spill annulus, with the annulus buckle
Shell fragment, the movable block being connected with the shell fragment, the movable block is provided with the clinching hole of a circle, in the top surface of the shell body
Clinching button is provided with, the clinching button is fixed through the clinching hole through the shell body and do not fallen off, and key top is pressed in the clinching
Face has column, and spring is arranged with the column.
Further technical scheme of the invention is：The control board is provided with sample circuit, governor circuit, actively examines
Slowdown monitoring circuit, power indicating circuit, earth leakage indicating circuit, control circuit of threading off, the sample circuit output end connection are described
Control circuit input end, the control circuit output end connection control circuit input end of threading off, the dropout controls circuit
Output end exports burning voltage, and the input of the power indicating circuit connects the dropout control circuit output end, the master
The input of dynamic detection circuit connects the sample circuit input, the active detecting circuit output end connection control electricity
The input on road, the input of the input connection single knife switch K1 of the earth leakage indicating circuit, the earth leakage refers to
Show the output end of the output end connection single knife switch K1 of circuit.
Further technical scheme of the invention is：The sample circuit includes ground connection sample circuit and zero live wire sampling electricity
Road, the ground connection sample circuit includes current transformer LX1, resistance R9, resistance R10, resistance R11, electric capacity C9 and electric capacity C8, institute
The PE1 ends for stating current transformer LX1 connect one end of resistance R9 one end, one end of electric capacity C9 and electric capacity C8, described first respectively
The PE2 ends connection resistance R10 of transformer, the other end of the resistance R10, resistance R9 and electric capacity C8 connects resistance R11's respectively
One end, the other end ground connection of the electric capacity C9；The zero live wire sample circuit includes current transformer LX2, electric capacity C4, resistance
The PE1 ends of R2, resistance R3 and electric capacity C3, the current transformer LX2 connect the electric capacity C4, resistance R2 and electric capacity C3 respectively
One end, the PE2 ends of the current transformer LX2 connect one end of the electric capacity C4, the other end of resistance R2 and resistance R3 respectively,
The other end ground connection of electric capacity C3.
Further technical scheme of the invention is：The governor circuit includes ground connection governor circuit and zero live wire master control electricity
Road, the output end of the input connection ground connection sample circuit of the ground connection governor circuit, the ground connection governor circuit output
The input of the end connection control circuit of threading off；The input of the zero live wire governor circuit connects the zero live wire sampling electricity
Road output end, the output end connection of the zero live wire governor circuit control circuit input end of threading off；The ground connection master control electricity
Road includes that the OS pin of main control chip U2, diode D2, electric capacity C6 and electric capacity C7, the main control chip U2 connect the diode D2
Anode, the NR pin of the main control chip U2 connect one end of the electric capacity C6, and the SC pin of the main control chip U2 are connected respectively
The OD pin of the main control chip U2 and one end of electric capacity C7, the IN pin of the main control chip U2 connect the another of the resistance R11
End, the VR pin of the main control chip U2 connect the PE1 ends of first current transformer, GND pin, the electricity of the main control chip U2
Hold the other end of C6 and the other end ground connection of electric capacity C7；The zero live wire governor circuit includes main control chip U1, electric capacity C2, electric capacity
C5, electric capacity C10, the VS pin of diode D3 and resistance R12, the main control chip U1 connect the positive pole of the electric capacity C10, the master
The OS pin of control chip U1 connect the anode of the diode D3 and one end of resistance R12, the NR ends of the main control chip U1 respectively
One end of connection electric capacity C2, the SC pin of the main control chip U1 connect respectively the main control chip U1 OD pin and electric capacity C5 one
End, the IN pin of the main control chip U1 connect the other end of the resistance R3, and the VR ends connection electric current of the main control chip U1 is mutual
The PE1 ends of sensor LX2, the other end at the GND ends, the electric capacity C5 other ends and electric capacity C2 of the main control chip U1 is grounded respectively.
Further technical scheme of the invention is：It is described thread off control circuit include resistance R5, electric capacity C1, resistance R6, can
Control silicon SCR, piezo-resistance ZR2, piezo-resistance ZR1, inductance L, diode D1, one end of the resistance R6 connects the master respectively
The VS pin of control chip U1 and the VS pin of the main control chip U2, the resistance R6 other ends connect the controllable silicon SCR respectively
One end of anode, one end of piezo-resistance ZR2 and inductance L, the other end of the inductance L connects the negative electrode of the diode D1,
The anode of the diode D1 connects the TT1 of the output end L, one end of piezo-resistance ZR1 and current transformer LX2 respectively
End, one end of the resistance R5 connects the negative electrode of the diode D2 and the negative electrode of diode D3 respectively, the controllable silicon SCR
Control machine connects one end of one end, the other end of resistance R12 and electric capacity C3 of the resistance R5 respectively, and the electric capacity C3's is another
End, the negative pole of controllable silicon SCR, the other end of piezo-resistance ZR2, the other end of piezo-resistance ZR1 and output end N ground connection.
Further technical scheme of the invention is：The active detecting circuit includes resistance R1, key switch SW1 and temperature
One end of switch TS, the resistance R1 connect the TT2 ends of the current transformer LX2, and the other end of the resistance R1 connects respectively
Connect one end of the key switch SW1 and the crus secunda of temperature switch TS, the other end and temperature switch of the key switch SW1
The first pin ground connection of TS.
Further technical scheme of the invention is：The earth leakage indicating circuit include resistance R12, resistance R13 and
One end LED1, the resistance R12 and resistance R13 in parallel is connected ground terminal one end, and the resistance R12 is in parallel with resistance R13
The other end connect one end of the LED1, the other end connection single knife switch K1 output ends of the LED1.
Further technical scheme of the invention is：The power indicating circuit includes LED2, resistance R7 and resistance R8, described
One end of LED2 connects the TT1 ends of the current transformer LX2, and the other end of the LED2 connects one end of the resistance R8,
The other end of the resistance R8 connects one end of the resistance R7, the other end ground connection of the resistance R7.
The beneficial effects of the invention are as follows：By power circuit for charging device provides power supply；Sample circuit collection live wire, zero
Leakage current signal between line and ground wire is simultaneously exported；Governor circuit receives the leakage current signal of sample circuit output, and to leakage
Current signal is amplified treatment, when leakage current reaches predetermined value, exports Failure Control signal；Control circuit of threading off receives master
Control the Failure Control signal of circuit output；And single-pole single-throw switch (SPST) disconnecting consumers and external power source are controlled according to Failure Control signal
Connection, reach protection load purpose, improve the earth leakage protective security of electric equipment products；Meanwhile, it is to adopt by test circuit
Sample circuit provides a simulation failure current signal, and whether the work of test safe quick-break type charging device is normal, improves safety
The work validity of quick-break type charging device；Additionally, on-off switch be single-pole single-throw switch (SPST) design in power end so that load with
After power supply disjunction, safe quick-break type charging device is no longer powered, it is to avoid practical power has disconnected with load, but power end electricity
Road is but still within working condition, thereby results in the risk of electronic component damage, and to causing the harm of secondary electric leakage；In core
The output par, c of piece is designed with a driving reverse-voltage protection resistance, prevents backward voltage to chip, the impact of controllable silicon, from
And the fault rate of chip, controllable silicon is greatly reduced, improve the stability of whole product；In sample circuit, test circuit
In be all implanted with the filter condenser of anti-clutter influence, can well filter out influence of the clutter to product, make the anti-dry of product
The ability of disturbing is greatly enhanced, and performance is greatly improved；And, this charging device product function is clear, compact conformation, safeguard simple side
Just.
Brief description of the drawings
Fig. 1 is the circuit diagram of the charging device of new-energy automobile provided in an embodiment of the present invention.
Specific embodiment
Reference：10- threads off and controls the live wire governor circuit 30- ground connection of circuit 20- ground connection governor circuits 21- zero to adopt
The live wire sample circuit 40- earth leakage indicating circuit 50- active detecting circuit 60- power indicating circuits of sample circuit 31- zero
Fig. 1 shows the charging device of the new-energy automobile of present invention offer, and the charging device includes connection-peg, control electricity
Road plate, tripping mechanism and socket, the connection-peg are contacted with the tripping mechanism, and the connection-peg is electrically connected with the dropout machine
Structure, the de- mouth mechanism is in the control board, and the tripping mechanism is electrically connected with the control board, described to insert
Seat is contacted with the control board, and the socket is electrically connected with the control board.It is charging device by power circuit
Power supply is provided；Sample circuit collection live wire, the leakage current signal between zero line and ground wire are simultaneously exported；Governor circuit receives sampling
The leakage current signal of circuit output, and treatment is amplified to leakage current signal, when leakage current reaches predetermined value, output failure
Control signal；Control circuit of threading off receives the Failure Control signal of governor circuit output；And controlled according to Failure Control signal single
Monopole single throw switch disconnecting consumers and the connection of external power source, reach the purpose of protection load, improve electric equipment products earth leakage protective
Security；Meanwhile, by test circuit for sample circuit provides a simulation failure current signal, test safe quick-break type charges
Whether device work is normal, improves the work validity of safe quick-break type charging device；Additionally, on-off switch is single-pole single-throw(SPST
Switch designs are in power end so that after load and power supply disjunction, safe quick-break type charging device is no longer powered, it is to avoid actual electricity
Source has disconnected with load, but the circuit of power end is still within working condition, thereby results in the risk of electronic component damage,
And to causing the harm of secondary electric leakage；A driving reverse-voltage protection resistance is designed with the output par, c of chip, prevents anti-
To voltage to chip, the impact of controllable silicon, so as to greatly reduce the fault rate of chip, controllable silicon, whole product is improve
Stability；The filter condenser of anti-clutter influence is all implanted with sample circuit, test circuit, can be filtered out well miscellaneous
Influence of the ripple to product, greatly enhances the antijamming capability of product, and performance is greatly improved；And, this charging device product work(
Can clear, compact conformation, safeguard simple and convenient.
The charging device also includes protection shell, and the protection shell includes upper shell and lower house, and the connection-peg is worn
Cross the lower house bottom surface to be fixed in the lower house, the tripping mechanism and control board are fixed at the lower house
Interior, the upper shell bolt is fixed on the lower house, and the upper shell is located at a snap open, and the socket is fixed on institute
State in snap open and be fixed on upper shell.
The upper shell top surface is provided with two circular circular holes, and the circular hole lower section is provided with the through hole of an ellipse.
The tripping mechanism includes shell body, located at the intrinsic magnet coil of shell, the circle in the magnet coil
The magnetic core of cylindricality, the magnetic core front end is provided with spill annulus, the shell fragment with the annulus buckle, the activity being connected with the shell fragment
Block, the movable block is provided with the clinching hole of a circle, and clinching button, the clinching button are provided with the top surface of the shell body
Fixed through the clinching hole through the shell body and do not fallen off, the clinching button top surface has column, covered on the column
It is provided with spring.
The control board be provided with sample circuit, governor circuit, active detecting circuit 50, power indicating circuit 60,
Earth leakage indicating circuit 40, control circuit 10 of threading off, the sample circuit output end connect the control circuit input end, institute
State the control circuit output end connection control input of circuit 10 of threading off, the dropout control circuit 10 output end output stabilization
Voltage, the input connection of the power indicating circuit 60 control output end of circuit 10, the active detecting circuit of threading off
50 input connects the sample circuit input, and the output end of active detecting circuit 50 connection is described to control the defeated of circuit
Enter end, the input of the input connection single knife switch K1 of the earth leakage indicating circuit 40, the earth leakage indicates electricity
The output end of the output end connection single knife switch K1 on road 40.
The sample circuit includes the ground connection live wire sample circuit 31 of sample circuit 30 and zero, and the ground connection sample circuit 30 is wrapped
Include current transformer LX1, resistance R9, resistance R10, resistance R11, electric capacity C9 and electric capacity C8, the PE1 of the current transformer LX1
End connects one end of resistance R9 one end, one end of electric capacity C9 and electric capacity C8, the PE2 ends connection resistance of first transformer respectively
The other end of R10, the resistance R10, resistance R9 and electric capacity C8 connects one end of resistance R11 respectively, and the electric capacity C9's is another
End ground connection；The zero live wire sample circuit 31 includes current transformer LX2, electric capacity C4, resistance R2, resistance R3 and electric capacity C3, institute
The PE1 ends for stating current transformer LX2 connect one end of the electric capacity C4, resistance R2 and electric capacity C3, the current transformer respectively
The PE2 ends of LX2 connect one end of the electric capacity C4, the other end of resistance R2 and resistance R3, the other end ground connection of electric capacity C3 respectively.
The governor circuit includes the ground connection live wire governor circuit 21 of governor circuit 20 and zero, the ground connection governor circuit 20
The output end of the input connection ground connection sample circuit 30, the output end of the ground connection governor circuit 20 connection control of threading off
The input of circuit 10；The input of the zero live wire governor circuit 21 connects the output end of zero live wire sample circuit 20, institute
State the output end connection control input of circuit 10 of threading off of zero live wire governor circuit 21；The ground connection governor circuit 20 includes
Main control chip U2, diode D2, the OS pin of electric capacity C6 and electric capacity C7, the main control chip U2 connect the sun of the diode D2
Pole, the NR pin of the main control chip U2 connect one end of the electric capacity C6, and the SC pin of the main control chip U2 connect described respectively
The OD pin of main control chip U2 and one end of electric capacity C7, the IN pin of the main control chip U2 connect the other end of the resistance R11, institute
The VR pin for stating main control chip U2 connect the PE1 ends of first current transformer, the GND pin of the main control chip U2, electric capacity C6
The other end and electric capacity C7 the other end ground connection；The zero live wire governor circuit 21 includes main control chip U1, electric capacity C2, electric capacity
C5, electric capacity C10, the VS pin of diode D3 and resistance R12, the main control chip U1 connect the positive pole of the electric capacity C10, the master
The OS pin of control chip U1 connect the anode of the diode D3 and one end of resistance R12, the NR ends of the main control chip U1 respectively
One end of connection electric capacity C2, the SC pin of the main control chip U1 connect respectively the main control chip U1 OD pin and electric capacity C5 one
End, the IN pin of the main control chip U1 connect the other end of the resistance R3, and the VR ends connection electric current of the main control chip U1 is mutual
The PE1 ends of sensor LX2, the other end at the GND ends, the electric capacity C5 other ends and electric capacity C2 of the main control chip U1 is grounded respectively.
The control circuit 10 of threading off includes resistance R5, electric capacity C1, resistance R6, controllable silicon SCR, piezo-resistance ZR2, pressure-sensitive
Resistance ZR1, inductance L, one end of diode D1, the resistance R6 connect the VS pin of the main control chip U1 and the master control respectively
The VS pin of chip U2, the resistance R6 other ends connect respectively the anode of the controllable silicon SCR, one end of piezo-resistance ZR2 and
One end of inductance L, the other end of the inductance L connects the negative electrode of the diode D1, and the anode of the diode D1 connects respectively
The TT1 ends of the output end L, one end of piezo-resistance ZR1 and current transformer LX2 are connect, one end of the resistance R5 connects respectively
The negative electrode of the diode D2 and the negative electrode of diode D3 are connect, the control machine of the controllable silicon SCR connects the resistance R5 respectively
One end, the other end of resistance R12 and electric capacity C3 one end, it is the other end of the electric capacity C3, the negative pole of controllable silicon SCR, pressure-sensitive
The other end of resistance ZR2, the other end of piezo-resistance ZR1 and output end N ground connection.
The active detecting circuit 50 includes resistance R1, key switch SW1 and temperature switch TS, one end of the resistance R1
The TT2 ends of the current transformer LX2 are connected, the other end of the resistance R1 connects one end of the key switch SW1 respectively
And the crus secunda of temperature switch TS, the other end of the key switch SW1 and the first pin ground connection of temperature switch TS.
The earth leakage indicating circuit 40 includes resistance R12, resistance R13 and LED1, the resistance R12 and resistance R13
One end connection ground terminal one end in parallel, the other end resistance R12 in parallel with resistance R13 is connected the one of the LED1
End, the other end connection single knife switch K1 output ends of the LED1.
The power indicating circuit 60 includes that LED2, resistance R7 and one end of resistance R8, the LED2 connect the electric current
The TT1 ends of transformer LX2, the other end of the LED2 connects one end of the resistance R8, the other end connection of the resistance R8
One end of the resistance R7, the other end ground connection of the resistance R7.
The chip of the M54123 that the main control chip is used.
As shown in figure 1, the L ends of plug connect one end of single knife switch K2, the output line warp of the other end of single knife switch K2
Overcurrent transformer LX2, one end of the N-terminal connection single knife switch K3 of plug, the output line of the other end of single knife switch K3 passes through
The PE1 ends of current transformer LX2, current transformer LX2 connect one end of electric capacity C4, one end of resistance R2, electric capacity C3 respectively
One end and the VR pin of main control chip U1, the other end ground connection of electric capacity C3, the PE2 ends of current transformer LX2 connect electric capacity C4 respectively
The other end, the other end of resistance R2 and resistance R3 one end, the IN pin of the other end main control chip U1 of resistance R3, Current Mutual Inductance
The TT1 ends of device LX2 connect one end and the output line L of LED2, one end of the TT2 connection resistance R1 of current transformer LX2, electricity respectively
The other end for hindering R1 connects one end of key switch SW1, the crus secunda of temperature switch TS, the other end of key switch SW1 respectively
Ground connection, the first pin ground connection of temperature switch TS, the GND pin ground connection of main control chip U1, the SC pin of main control chip U1 connect electricity respectively
Hold the OD pin of C5 one end and main control chip U1, the other end ground connection of electric capacity C5, the one of the NR pin connection electric capacity C2 of main control chip U1
End, the other end ground connection of electric capacity C2, the OS pin of main control chip U1 connect the anode of diode D1 and one end of resistance R12 respectively,
The VS pin of main control chip U1 and the VS pin of main control chip U2 connect one end of resistance R6 respectively, and the VS pin of main control chip U1 are also connected with
The positive pole of electric capacity C10, the negative pole ground connection of electric capacity C10, one end of resistance R5 connects the negative electrode and diode D2 of diode D3 respectively
Negative electrode, one end of electric capacity C1 connects the control pole of the other end of resistance R12, the other end of resistance R5 and controllable silicon SCR respectively,
The other end ground connection of electric capacity C1, the negative pole ground connection of controllable silicon SCR, the other end of resistance R6 connect respectively the positive pole of controllable silicon SCR,
One end of piezo-resistance ZR2, one end of inductance L, the other end ground connection of piezo-resistance ZR2, the other end connection diode of inductance L
The negative electrode of D1, the anode of diode D connects one end and the output line L of piezo-resistance ZR1, the other end of piezo-resistance ZR1 respectively
Ground connection, one end of another terminating resistor R8 of LED2, one end of the other end connection resistance R7 of resistance R8, the other end of resistance R7
Ground connection and output line N, the earth terminal of plug connect one end of single knife switch K1 and in parallel one of resistance 12 and resistance R13 respectively
End, the other end in parallel of resistance 12 and resistance R13 connects one end of LED1, and the other end of LED1 and single knife switch K1's is another
Connecting line is passed through current transformer LX1 by end, and TT1, TT2 end of current transformer LX1 are idle, the PE1 ends of current transformer LX1
The VR pin of one end, one end of electric capacity C8, one end of electric capacity C9 and the main control chip U2 of resistance R9, current transformer are connected respectively
One end of the PE2 ends connection resistance R10 of LX1, one end of resistance R11 connect respectively the other end of resistance R9, resistance R10 it is another
End and the other end of electric capacity C8, electric capacity C9 other ends ground connection, the IN pin of the other end connection main control chip U2 of resistance R11, master control
The GND pin ground connection of chip U2, the SC pin of main control chip connect the OD pin of main control chip U2 and one end of electric capacity C7, electric capacity C7 respectively
Other end ground connection, NR pin connection electric capacity C6 one end of main control chip U2, the other end ground connection of electric capacity C6, the OS of main control chip U2
The anode of pin connection diode D1.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of charging device of new-energy automobile, it is characterised in that：The charging device includes connection-peg, control board, takes off
Buckle mechanism and socket, the connection-peg are contacted with the tripping mechanism, and the connection-peg is electrically connected with the tripping mechanism, described
In the control board, the tripping mechanism is electrically connected with the control board, the socket and institute to tripping mechanism
Control board contact is stated, the socket is electrically connected with the control board；
The control board is provided with sample circuit, governor circuit, active detecting circuit, power indicating circuit, earth leakage
Indicating circuit, control circuit of threading off, the output end of the sample circuit connect the input of the governor circuit, the master control electricity
The input of the output end connection control circuit of threading off on road, the output end output burning voltage of the dropout control circuit,
The output end of the input connection control circuit of threading off of the power indicating circuit, the input of the active detecting circuit
The input of the sample circuit is connected, the output end of the active detecting circuit connects the input of the governor circuit, institute
State the input of the input connection single knife switch K1 of earth leakage indicating circuit, the output end of the earth leakage indicating circuit
The output end of connection single knife switch K1.
2. charging device according to claim 1, it is characterised in that the charging device also includes protection shell, the guarantor
Shield shell includes upper shell and lower house, and the connection-peg is fixed in the lower house through the lower house bottom surface, described
Tripping mechanism and control board are fixed in the lower house, and the upper shell bolt is fixed on the lower house, institute
State upper shell and be provided with a snap open, the socket is fixed in the snap open and is fixed on upper shell.
3. charging device according to claim 1 and 2, it is characterised in that the tripping mechanism includes shell body, located at shell
Intrinsic magnet coil, the cylindrical magnetic core in the magnet coil, the magnetic core front end is provided with spill annulus, with
The shell fragment of the annulus buckle, the movable block being connected with the shell fragment, the movable block is provided with the clinching hole of a circle, in institute
The top surface for stating shell body is provided with clinching button, and the clinching button is fixed through the clinching hole through the shell body and do not fallen off,
The clinching button top surface has column, and spring is arranged with the column.
4. charging device according to claim 3, it is characterised in that the sample circuit includes ground connection sample circuit and zero
Live wire sample circuit, the ground connection sample circuit includes current transformer LX1, resistance R9, resistance R10, resistance R11, electric capacity C9
And the Secondary Winding PE1 ends of electric capacity C8, the current transformer LX1 connect resistance R9 one end, one end of electric capacity C9 and electricity respectively
Hold one end of C8, the Secondary Winding PE2 ends connection resistance R10 of the current transformer LX1, the resistance R10, resistance R9 and electricity
The other end for holding C8 connects one end of resistance R11, the other end ground connection of the electric capacity C9 respectively；The zero live wire sample circuit bag
Include the Secondary Winding PE1 ends of current transformer LX2, electric capacity C4, resistance R2, resistance R3 and electric capacity C3, the current transformer LX2
One end of the electric capacity C4, resistance R2 and electric capacity C3, the Secondary Winding PE2 ends difference of the current transformer LX2 are connected respectively
Connect one end of the electric capacity C4, the other end of resistance R2 and resistance R3, the other end ground connection of electric capacity C3.
5. charging device according to claim 4, it is characterised in that the governor circuit includes ground connection governor circuit and zero
Live wire governor circuit, the output end of the input connection ground connection sample circuit of the ground connection governor circuit, the ground connection master
The input of the control circuit output end connection control circuit of threading off；The input connection described zero of the zero live wire governor circuit
Live wire sample circuit output end, the output end connection of the zero live wire governor circuit control circuit input end of threading off；It is described
Ground connection governor circuit includes the OS pin connection institute of main control chip U2, diode D2, electric capacity C6 and electric capacity C7, the main control chip U2
The anode of diode D2 is stated, the NR pin of the main control chip U2 connect one end of the electric capacity C6, the SC of the main control chip U2
Pin connects the OD pin of the main control chip U2 and one end of electric capacity C7 respectively, and the IN pin of the main control chip U2 connect the resistance
The other end of R11, the VR pin of the main control chip U2 connect the Secondary Winding PE1 ends of the current transformer LX1, the master control
The other end ground connection of the GND pin, the other end of electric capacity C6 and electric capacity C7 of chip U2；The zero live wire governor circuit includes master control core
Piece U1, electric capacity C2, electric capacity C5, electric capacity C10, the VS pin of diode D3 and resistance R12, the main control chip U1 connect the electric capacity
The positive pole of C10, the OS pin of the main control chip U1 connect the anode of the diode D3 and one end of resistance R12 respectively, described
The NR ends of main control chip U1 connect one end of electric capacity C2, and the SC pin of the main control chip U1 connect the main control chip U1's respectively
One end of OD pin and electric capacity C5, the IN pin of the main control chip U1 connect the other end of the resistance R3, the main control chip U1
VR ends connection current transformer LX2 Secondary Winding PE1 ends, the GND ends of the main control chip U1, the electric capacity C5 other ends and electricity
The other end for holding C2 is grounded respectively.
6. charging device according to claim 5, it is characterised in that the dropout control circuit includes resistance R5, electric capacity
C1, resistance R6, controllable silicon SCR, piezo-resistance ZR2, piezo-resistance ZR1, inductance L, one end point of diode D1, the resistance R6
The VS pin of the main control chip U1 and the VS pin of the main control chip U2 are not connected, and the resistance R6 other ends connect described respectively
One end of the anode, one end of piezo-resistance ZR2 and inductance L of controllable silicon SCR, the other end of the inductance L connects two pole
The negative electrode of pipe D1, the anode of the diode D1 connects one end of the piezo-resistance ZR1, the one of current transformer LX2 respectively
Secondary winding TT1 ends and output end, one end of the resistance R5 connect the negative electrode of the diode D2 and the moon of diode D3 respectively
Pole, the control end of the controllable silicon SCR connects the one of one end, the other end of resistance R12 and the electric capacity C1 of the resistance R5 respectively
End, the other end of the electric capacity C1, the negative pole of controllable silicon SCR, the other end of piezo-resistance ZR2, the other end of piezo-resistance ZR1
And output end N ground connection.
7. charging device according to claim 6, it is characterised in that the active detecting circuit includes resistance R1, button
One end of switch SW1 and temperature switch TS, the resistance R1 connect the first winding TT2 ends of the current transformer LX2, described
The other end of resistance R1 connects one end of the key switch SW1 and the crus secunda of temperature switch TS, the key switch respectively
The other end of SW1 and the first pin ground connection of temperature switch TS.
8. charging device according to claim 7, it is characterised in that the earth leakage indicating circuit include resistance R12,
Resistance R13 and LED1, one end resistance R12 in parallel with resistance R13 are connected ground terminal one end, the resistance R12 and electricity
Other end resistance R13 in parallel connects one end of the LED1, the other end connection single knife switch K1 output ends of the LED1.
9. charging device according to claim 8, it is characterised in that the power indicating circuit includes LED2, resistance R7
And one end of resistance R8, the LED2 connect the first winding TT1 ends of the current transformer LX2, the other end of the LED2
One end of the resistance R8 is connected, the other end of the resistance R8 connects one end of the resistance R7, and the resistance R7's is another
End ground connection.
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| CN201410123213.3A CN103928905B (en) | 2014-03-28 | 2014-03-28 | A kind of charging device of new-energy automobile |
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| CN201410123213.3A CN103928905B (en) | 2014-03-28 | 2014-03-28 | A kind of charging device of new-energy automobile |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142468Y (en) * | 2007-11-07 | 2008-10-29 | 衡阳师范学院 | Charging protection socket for electric car |
| CN201178218Y (en) * | 2008-04-02 | 2009-01-07 | 王钟宇 | Full-functional tripolar leakage protecting plug |
| CN201323167Y (en) * | 2008-11-15 | 2009-10-07 | 上海益而益电器制造有限公司 | Earth leakage circuit breaker |
| CN101908756A (en) * | 2010-09-15 | 2010-12-08 | 山东电力集团公司潍坊供电公司 | Charging protector |
| CN202142732U (en) * | 2011-07-01 | 2012-02-08 | 刘睿刚 | Electric leakage protection plug |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138139A (en) * | 2005-01-04 | 2008-03-05 | 科技研究公司 | Leakage current detection and interruption circuit |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142468Y (en) * | 2007-11-07 | 2008-10-29 | 衡阳师范学院 | Charging protection socket for electric car |
| CN201178218Y (en) * | 2008-04-02 | 2009-01-07 | 王钟宇 | Full-functional tripolar leakage protecting plug |
| CN201323167Y (en) * | 2008-11-15 | 2009-10-07 | 上海益而益电器制造有限公司 | Earth leakage circuit breaker |
| CN101908756A (en) * | 2010-09-15 | 2010-12-08 | 山东电力集团公司潍坊供电公司 | Charging protector |
| CN202142732U (en) * | 2011-07-01 | 2012-02-08 | 刘睿刚 | Electric leakage protection plug |
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