CN202034814U - Portable charger for electric vehicle - Google Patents
Portable charger for electric vehicle Download PDFInfo
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- CN202034814U CN202034814U CN2011201103740U CN201120110374U CN202034814U CN 202034814 U CN202034814 U CN 202034814U CN 2011201103740 U CN2011201103740 U CN 2011201103740U CN 201120110374 U CN201120110374 U CN 201120110374U CN 202034814 U CN202034814 U CN 202034814U
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Abstract
The utility model provides a portable charger for an electric vehicle. The charger is light and compact and can be carried along with a vehicle; a battery electric vehicle or a plug-in hybrid electric vehicle can be conveniently charged at any situation through a standard household power interface by a vehicle owner; and besides, the strict safety protection function is provided, so that the safety problems of over-current, electric leakage and short-circuit can be effectively solved. The portable charger for the electric vehicle comprises an intelligent control unit, a power end plug, a cable and a vehicle end charging plug; and the intelligent control unit is connected with a related peripheral circuit via a central control module, and the peripheral circuit mainly comprises a rectifier filter circuit, a relay driving circuit, a relay actuation detection circuit and a pulse signal output circuit.
Description
Technical field
The present invention relates to a kind of battery charge controller and method for designing thereof, relate in particular to a kind of electric automobile portable charger and method for designing thereof of light small and exquisite, simple to operate, performance safety at family expenses pure electric automobile or plug-in hybrid automobile.
Background technology
Along with the aggravation of energy crisis and environmental pollution, the rise of electric automobile more and more adapts to the demand in epoch.When electric automobile rises, also more and more be subjected to extensive concern about its charging problem.Though the charging device at present a lot of electric automobile special charging stations can solve most charging problem as electric automobile charging pile, charging electric vehicle cabinet etc.But the car owner need arrive the charging place of appointment could charge.Electric automobile is not in case had electricity soon in the road that travels, be difficult to guaranteeing just has a tame electric automobile charging station near this moment, and the car owner will waste on the road that a lot of valuable time are used in the searching charging station like this.In addition, when the car owner was parked in oneself garage or sub-district with electric automobile, the free time of the very suitable charging of this section but was difficult to make full use of.So the car owner selects in the occasion of charging electric vehicle at present, is difficult to Autonomous Control, the utilization ratio of time is not high.This also can restrict popularizing of pure electric automobile.
Summary of the invention
In order to make the car owner that well-to-do charging occasion, the not high problem of utilance settling time can be arranged, the invention provides a kind of electric automobile portable charger and method for designing thereof.This charger is light small and exquisite, can carry with car.By the household electrical source interface of standard, can make the car owner give pure electric automobile or plug-in hybrid vehicle charging easily under the occasion arbitrarily.In addition, provide strict safety protection function, can effectively handle safety problems such as overcurrent, electric leakage, short circuit.
To achieve these goals, the technical solution adopted in the present invention is as follows.
A kind of electric automobile portable charger, it comprises intelligent control unit, power end plug, cable, automobile end charging plug; Described intelligent control unit is by central control module (CCU) join dependency peripheral circuit, mainly finishes realization and error protection to peripheral breadboardin and digital signal high-speed sampling, algorithm, recharge logic; Described central control module is used to control the realization of steering circuit, management, the monitoring of each unit status and the sending of control command of peripheral circuit; Described peripheral circuit comprises: current rectifying and wave filtering circuit is used to whole intelligent control unit that suitable power supply is provided; Relay drive circuit realizes whether the power end plug being connected to automobile end charging plug by the control relay adhesive; Relay adhesive testing circuit is used to detect whether adhesive of relay, and testing result is passed to central control module; The pulse signal output circuit, the square-wave signal that is used for central control module is sent is output as the signal that is connected to electric automobile CP terminal through conversion.
In the said apparatus, described peripheral circuit further comprises: leakage protection circuit, be used to detect electrical enclosure whether and live wire by accident directly be communicated with cause and ground between to produce certain potentials poor; Current detection circuit, overcurrent whether when being used for judging charging, and whether definite charging is finished.
In the described pulse signal output circuit, an I/O port of single-chip microcomputer or chip in the described central control module is connected to the base stage of first triode of this circuit; The CP lead-out terminal of described central control module will be connected between this circuit fuse and the Transient Suppression Diode.This circuit is by a series of diodes, triode, electric capacity and resistance, and fuse and Transient Suppression Diode are formed by connecting in order.
In the described relay drive circuit, with the live wire in the three-phase alternating current (as 220V or 110V) of power end plug side input and the zero line fuse of respectively connecting respectively, electric capacity of voltage regulation in parallel again then, be connected to two normally-closed contacts of relay, this live wire is also connected to the pin of a pull-in winding of relay in addition, another pin of described pulling relay coil is connected to the first anode of bidirectional triode thyristor, the second plate of described bidirectional triode thyristor is connected with described zero line, and its control utmost point is connected to the output of photoelectrical coupler; The I/0 port of single-chip microcomputer or chip is connected in the light-emitting diode one termination ﹢ 5V level of described photoelectrical coupler, the other end and central control module.Like this can be by the signal control relay adhesive of described I/0.
In the described relay adhesive testing circuit, two normally opened contacts of relay are connected to 2 inputs that exchange photoelectrical coupler; The output of described interchange photoelectrical coupler is connected to an external interrupt of single-chip microcomputer in the central control module or chip.When the relay adhesive, have (220V or 110V) alternating voltage between two normally opened contacts, described photoelectrical coupler can produce the pulse signal of certain frequency (as 100Hz), and whether will be detected by described single-chip microcomputer or chip has this pulse to judge that relay is whether in the adhesive.
In the described current rectifying and wave filtering circuit, the live wire of the fuse of having connected in the described relay drive circuit and the primary side that zero line is connected respectively to transformer, the secondary side of described transformer is connected to bridge rectifier.The signal that bridge rectifier is good with rectification is connected in the analogue filter circuit, and then by two pressurizers the voltage of output is stabilized to+12V and-12V, connect the 3rd pressurizer at the output of+12V, its voltage output is stabilized in+5V.
In the described central control module, the connection of described automobile end charging plug confirms that the CC end is connected to the ADC analog sampling port of single-chip microcomputer or chip by electric resistance partial pressure; Wherein four of single-chip microcomputer or chip I/O ports are connected to the light-emitting diode of four different colours, in order to the demonstration of various situations and fault type; Single-chip microcomputer or chip are gathered the signal of described relay adhesive testing circuit, leakage protection circuit, current detection circuit with certain sample frequency (as 10KHz); Do and export to relay drive circuit, pulse signal output circuit after logical process is judged, in order to realize function corresponding.
In the described leakage protection circuit, the live wire in the described relay drive circuit and zero line are passed jointly the annular core of zero sequence current mutual inductor; The secondary side output of described zero sequence current mutual inductor connects an operational amplifier; The magnitude of voltage of output is amplified to the suitable size that single-chip microcomputer in the central control module or chip can read; The output of described operational amplifier is connected to the ADC sampling end of described single-chip microcomputer or chip.When the charger operate as normal, learn each phase current vector and be zero by Kirchhoff's current law (KCL), so the time secondary side no-voltage.When leak current fault takes place when, each phase current vector and non-vanishing.Produce magnetic flux in the annular core of described zero sequence current mutual inductor, just produced induced voltage at secondary side.
In the described current detection circuit, the live wire in the described relay drive circuit is passed current transformer; The secondary side of this instrument transformer connects an operational amplifier; The magnitude of voltage of output is amplified to the suitable size that single-chip microcomputer in the central control module or chip can read; The output of described operational amplifier is connected to the ADC sampling end of described single-chip microcomputer or chip.
After described intelligent control unit powered on, the workflow of central control module was as follows:
1) central control module reads the AD value of current detection circuit, judges whether overcurrent, if then be set to fault 1, then continues next step if not;
2) central control module reads the AD value of leakage protection circuit, has judged whether leakage current, if then be set to fault 2, then continues next step if not;
3) central control module reads the value of relay adhesive testing circuit and judges with whether provide instruction consistent, then is set to fault 3 if not, if then continue next step;
4) central control module judges according to the value that reads whether this charger is in the operating state of charging in current detection circuit; If be not in charged state, then read the CC line magnitude of voltage of vehicle charging end, judge whether plug connects, do not connect if having, then get back to the 1st) step; If connection is arranged, then send the pulse of certain frequency (as 1kHz, duty ratio 20%) to the pulse signal output circuit; Delayed time several seconds, buzzer rings several, sends signal to relay drive circuit and makes relay closes, begins charging, gets back to the 1st) step; If this charger is in charged state, then continue next step;
5) read the CC line magnitude of voltage of vehicle charging end, judge whether plug connects, do not connect, then be set to fault 4, if there is connection then to continue next step if having;
6) judge according to the value that in current detection circuit, reads whether this charger charges and finish,, then directly get back to the 1st if charging is not finished) step; If charging is finished, then continue next step;
7) the indicator light signal hint finishes, and sends signal to relay drive circuit relay is disconnected, and stops to send pulse to the pulse signal output circuit, delays time several seconds, gets back to the 1st) step;
8) the above-mentioned middle various faults that occur according to the type of fault, make corresponding trouble light bright, and the short ring expression of buzzer has fault; Stop to send pulse to the pulse signal output circuit;
9) according to the value that in current detection circuit, reads, seek voltage over zero, send signal to relay drive circuit relay is disconnected;
10) judge whether it is over current fault;
11) if then time-delay is waited for, gets back to the 1st then) step.
A kind of method for designing of electric automobile portable charger is provided with intelligent control unit, power end plug, cable, automobile end charging plug; Described intelligent control unit is provided with central control module and join dependency peripheral circuit; Described central control module is used to control the realization of steering circuit, management, the monitoring of each unit status and the sending of control command of peripheral circuit; Described peripheral circuit is provided with as follows: current rectifying and wave filtering circuit is used to whole intelligent control unit that suitable power supply is provided; Relay drive circuit realizes whether the power end plug being connected to automobile end charging plug by the control relay adhesive; Relay adhesive testing circuit is used to detect whether adhesive of relay, and testing result is passed to central control module; The pulse signal output circuit, the square-wave signal that is used for central control module is sent is output as the signal that is connected to automobile CP terminal through conversion.
In the said method, described peripheral circuit further is provided with as follows: leakage protection circuit, be used to detect electrical enclosure whether and live wire by accident directly be communicated with cause and ground between to produce certain potentials poor; Current detection circuit, overcurrent whether when being used for judging charging, and whether definite charging is finished.
In the said method, after intelligent control unit powered on, the work of described central control module was carried out as follows:
1) central control module reads the AD value of current detection circuit, judges whether overcurrent, if then be set to fault 1, then continues next step if not;
2) central control module reads the AD value of leakage protection circuit, has judged whether leakage current, if then be set to fault 2, then continues next step if not;
3) central control module reads the value of relay adhesive testing circuit and judges with whether provide instruction consistent, then is set to fault 3 if not, if then continue next step;
4) central control module judges according to the value that reads whether this charger is in the operating state of charging in current detection circuit; If be not in charged state, then read the CC line magnitude of voltage of vehicle charging end, judge whether plug connects, do not connect if having, then get back to the 1st) step; If connection is arranged, then send the pulse of certain frequency to the pulse signal output circuit; Delayed time several seconds, buzzer rings several, sends signal to relay drive circuit and makes relay closes, begins charging, gets back to the 1st) step; If this charger is in charged state, then continue next step;
5) read the CC line magnitude of voltage of vehicle charging end, judge whether plug connects, do not connect, then be set to fault 4, if there is connection then to continue next step if having;
6) judge according to the value that in current detection circuit, reads whether this charger charges and finish,, then directly get back to the 1st if charging is not finished) step; If charging is finished, then continue next step;
7) the indicator light signal hint finishes, and sends signal to relay drive circuit relay is disconnected, and stops to send pulse to the pulse signal output circuit, delays time several seconds, gets back to the 1st) step;
8) the various faults that occur in above-mentioned according to the type of fault, make corresponding trouble light bright, and the short ring expression of buzzer has fault; Stop to send pulse to the pulse signal output circuit;
9) according to the value that in current detection circuit, reads, seek voltage over zero, send signal to relay drive circuit relay is disconnected;
10) judge whether it is over current fault;
11) if then time-delay is waited for, gets back to the 1st then) step.
In the said method, described step 4) central control module judges according to the value that reads whether this charger is in the operating state of charging in current detection circuit; If be not in charged state, then read the CC line magnitude of voltage of vehicle charging end, judge whether plug connects, do not connect if having, then get back to the 1st) step; If connection is arranged, then send 1kHz, duty ratio 20% pulse to the pulse signal output circuit; Delay time 2-5 second, buzzer rings 1-5 sound, sends signal to relay drive circuit and makes relay closes, begins charging, gets back to the 1st) step; If this charger is in charged state, then continue next step.
In the said method, described step 7) indicator light signal hint finishes, and sends signal to relay drive circuit relay is disconnected, and stops to send pulse to the pulse signal output circuit, delays time 2-8 second, gets back to the 1st) step.
The beneficial effect of electric automobile portable charger of the present invention and method for designing thereof is: this charger is light small and exquisite, can carry with car; As long as it is standard three phase mains interface such as the 220V or the 110V of family expenses are arranged, promptly chargeable; Therefore be not subjected to the restriction of time and position, can conveniently charge.Safety protection function is complete, can effectively handle faults such as the short circuit that caused by various accidents, overcurrent, electric leakage, and can disconnect relay when fault when voltage over zero, the disconnection that the prevents big electric current arcing that causes getting an electric shock; Thereby charging process is safe and reliable, and automatic outage is finished in charging.The method for designing conformance with standard has been considered the safeguard measure of various situations, and the fault recovery function etc.
Description of drawings
Fig. 1 is a circuit structure frame diagram of the present invention.
Fig. 2 is the relay drive circuit schematic diagram of the embodiment of the invention.
Fig. 3 is the current rectifying and wave filtering circuit structure chart of the embodiment of the invention.
Fig. 4 is the current detection circuit schematic diagram of the embodiment of the invention.
Fig. 5 is the leakage protection circuit schematic diagram of the embodiment of the invention.
Fig. 6 is the central control module schematic diagram of the embodiment of the invention.
Fig. 7 is the relay adhesive testing circuit schematic diagram of the embodiment of the invention.
Fig. 8 is the pulse signal output circuit schematic diagram of the embodiment of the invention.
Fig. 9 is the workflow diagram of the central control module of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and the power interface 220V of standard-family is embodiment, and the present invention is described in further detail.
As shown in Figure 1, portable charger of the present invention is made up of power end plug 1, intelligent control unit, cable, automobile end charging plug 9.Wherein power end plug 1 is the parts that movable cable that charger is drawn and standard-family's power interface couple together, plug rated current 16A, single-phase three-wire access way.Cable is to be used to connect power end plug and charger intelligent control unit, and the parts of intelligent control unit and automobile end charging plug.Automobile end charging plug 9 is parts that movable cable that charger is drawn and charging electric vehicle socket couple together.Intelligent control unit comprises relay drive circuit 2, current rectifying and wave filtering circuit 3, current detection circuit 4, leakage protection circuit 5, central control module 6, relay adhesive testing circuit 7, pulse signal output circuit 8.
In the relay drive circuit as shown in Figure 2, by live wire in the 220V three-phase alternating current of power end plug side input and zero line respectively connect respectively fuse FU1, a FU2, three-phase is each piezo-resistance R25, a R26 in parallel directly.Electric capacity of voltage regulation C26 in parallel again between live wire and the zero line then, be connected to two normally-closed contacts of relay 10, this live wire is also connected to the pin of 10 1 pull-in windings of relay in addition, another pin of relay 10 pull-in windings is connected to the first anode of bidirectional triode thyristor T3, the second plate of bidirectional triode thyristor T3 is connected with zero line, this zero line and the pin 16 that is connected to photoelectrical coupler 11 after fixed carbon resister R20 connects.After controlling the utmost point and fixed carbon resister R27 connects, bidirectional triode thyristor T3 is connected to the output of photoelectrical coupler 11.The light-emitting diode one termination ﹢ 5V level of photoelectrical coupler 11, the other end is connected with the I/0 end of the single-chip microcomputer of central control module 6.Like this can be by the signal control relay adhesive of single-chip microcomputer I/0.
As shown in Figure 3, current rectifying and wave filtering circuit is used to whole intelligent control unit that suitable power supply is provided.With 220V-L-T in the relay drive circuit 2 and 220V-N-T, be connected to the primary side of transformer 12.Secondary side by transformer 12 is connected to bridge rectifier 13, is connected to analogue filter circuit 14 after rectification.Be connected to 7812 pressurizers 15 after the filtering, through ± 12 volts voltage of this output, again with its+12V voltage is connected to 7805 pressurizers 16, through this output+5 volt voltage.
As shown in Figure 4, in the current detection circuit, the live wire in the relay drive circuit 2 is passed current transformer S1; The secondary side of this instrument transformer connects an operational amplifier U2; The magnitude of voltage of output is amplified to the suitable size that the monolithic function reads in the central control module; The output of operational amplifier U2 is connected to the ADC sampling end of described single-chip microcomputer.
As shown in Figure 5, in the leakage protection circuit, the live wire in the relay drive circuit 2 and zero line are passed jointly the annular core T1 of zero sequence current mutual inductor; The secondary side output of zero sequence current mutual inductor connects an operational amplifier U3; The magnitude of voltage of output is amplified to the suitable size that the monolithic function reads in the central control module; The output of operational amplifier U3 is connected to the ADC sampling end of described single-chip microcomputer.
As shown in Figure 6, in the central control module, the serial port RxD of single-chip microcomputer U4 is connected with TxD with the RxD of program debugging interface J1 respectively with TxD, is used for program is gone into single-chip microcomputer from the PC programming.The external interrupt of single-chip microcomputer U4
Be connected with the output RelayChk that exchanges photoelectrical coupler U11 in the relay adhesive testing circuit, be used to judge whether adhesive of relay.The P3.3 mouth of single-chip microcomputer U4 is connected to 12 pins of U7 in the relay drive circuit as output, is used for the control relay adhesive.The P3.4 of single-chip microcomputer U4 is connected with the end of shift knob S2, S3 respectively with the P3.5 mouth, and the other end of shift knob S2, S3 is linked to each other with+5V by pull-up resistor R28, R29.PulseCtrl end in the P1.7 mouth of single-chip microcomputer U4 and the pulse signal output circuit is connected, and is used for output pulse signal.The P1.6 of single-chip microcomputer U4, P1.5 mouth are connected to two negative electrodes of dual-colored LED lamp D13 respectively, are used to show fault message.The P1.4 of single-chip microcomputer U4, P1.3 mouth are connected to two negative electrodes of LED lamp D12, D11 respectively, and wherein D12 is used to show relay adhesive information, and D11 is used for the link information of display automobile charging end plug and electric automobile.P1.2 in the single-chip microcomputer is connected with PP terminal among the J2, by electric resistance partial pressure, is used to judge whether vehicle charging end plug is connected with electric automobile.The P1.1 of single-chip microcomputer U4 is connected to the LK-Protect end in the leakage protection circuit, is used for detecting whether leakage current is arranged.The P1.0 of single-chip microcomputer U4 end is connected to the OC-Protect end of current detection circuit, is used to read that this circuit gathers to the ADC sampled value.P3.7 is connected to the base stage of triode Q8, and its collector electrode is connected to 1 end of buzzer U9, thus the warning of control buzzer.
As shown in Figure 7, in the relay adhesive testing circuit, 2 normally opened contacts of relay are connected to two inputs that exchange photoelectrical coupler U11; The output that exchanges photoelectrical coupler U11 is connected to an external interrupt of single-chip microcomputer in the central control module.When the relay adhesive, have the alternating voltage of 220V between two normally opened contacts, photoelectrical coupler can produce the pulse signal of 100Hz, and whether will be detected by described single-chip microcomputer has this pulse to judge that relay is whether in the adhesive.
As shown in Figure 8, in the pulse signal output circuit, the base stage of triode Q1 is connected with the P1.7 of the single-chip microcomputer of central control module 6, and collector electrode one end and resistance R 12 are connected to+12V, and the other end links to each other with the anode of diode D5.The negative electrode of this diode links to each other with the emitter of triode Q4.The other end of this emitter back and the base stage of the Q4 ground connection in the lump of connecting with resistance R 30.The collector electrode of triode Q4 links to each other with the collector electrode of triode Q5, and the emitter of triode Q5 is connected to-12V, and base stage one end of this triode links to each other with the emitter of triode Q7, the other end be connected to-12V after resistance R 33 is connected.Base stage one end of triode Q7 be connected to-12V after resistance R 32 is connected, the other end is connected with the emitter of triode Q6.The base stage of this triode Q6 be connected to-12V after resistance R 31 is connected.Collector electrode one end of triode Q6 links to each other with the anode of diode D7, the other end be connected to+12V after resistance R 22 is connected.The negative electrode of diode D7 is connected with the collector electrode of triode Q7.The collector electrode of this triode Q7 also is connected with the negative electrode of diode D9 in addition.The anode of diode D9 and the emitter that is connected to triode Q3 after resistance R 24 is connected.Base stage one end of triode Q3 links to each other with the collector electrode of triode Q6, the other end be connected to+12V after resistance R 22 is connected.Collector electrode one end of triode Q3 is connected with+12V, and the other end is connected with the negative electrode of diode D6.The end of the negative electrode of the negative electrode of the anode of diode D6 and diode D8, diode D10, fuse FU3 is connected to a common node.Wherein the anode of diode D8 is connected with the negative electrode of diode D7.The anode of diode D10 is connected with-12V.PulseOut end between the other end of fuse FU3 and the Transient Suppression Diode TV3 is connected to the CP end of automobile end charging plug 9.Described pulse signal output circuit can convert the pin P1.7 control signal of single-chip microcomputer U4 to controller of vehicle reads in the electric automobile inside pwm signal.
As shown in Figure 9, when described portable charger attaching plug end 1 is connected with household socket, power on promptly for this intelligent control unit, central control module 6 reads the AD value in the current detection circuit 4, judges whether overcurrent, if then be set to fault 1; Then read the AD value of leakage protection circuit 5 if not, judged whether leakage current, if then be set to fault 2; Then read the value of relay adhesive testing circuit 7 if not and judge, then be set to fault 3 if not with whether provide instruction consistent; If then judge according to the value that in current detection circuit 4, reads whether this charger is in the operating state of charging; If be not in charged state, then read the CC line magnitude of voltage of vehicle charging end 9, judge whether plug connects, do not connect if having, then get back to the first step after powering on,, then send 1kHz to pulse signal output circuit 8 if connection is arranged, duty ratio 20% pulse, delayed time 3 seconds, buzzer rings three, sends signal to relay drive circuit 2 and makes relay closes, begin charging, get back to the back first step that powers on.If this charger is in charged state, then read the CC line magnitude of voltage of vehicle charging end 9, judge whether plug connects, do not connect if having, then be set to fault 4(and in charging process, be connected interruption with electric automobile because of accident causes charger); If having connection then to judge according to the value that reads whether this charger charges in current detection circuit 4 finishes, if charging is finished, then the indicator light signal hint finishes, sending signal to relay drive circuit 2 disconnects relay, stop to send pulse to pulse signal output circuit 8, delayed time 5 seconds, and got back to the back first step that powers on; If charging is not finished, then directly get back to the back first step that powers on.The various faults that occur in above-mentioned according to the type of fault, make corresponding trouble light bright, the short ring expression of buzzer fault; Stop to send pulse to pulse signal output circuit 8, again according to the value that in current detection circuit 4, reads, seek voltage over zero, sending signal to relay drive circuit 2 disconnects relay, and judge whether it is over current fault (can recover fault), if got back to the back first step that powers on after then delaying time 10 minutes.
Below only be a specific embodiment of the present invention, the method for designing according to the present invention also can produce the product of similar techniques in the practice, all belong to protection range of the present invention.
Claims (9)
1. electric automobile portable charger, it comprises intelligent control unit, power end plug, cable, automobile end charging plug, it is characterized in that, described intelligent control unit is by central control module join dependency peripheral circuit;
Described central control module is used to control the realization of steering circuit, management, the monitoring of each unit status and the sending of control command of peripheral circuit;
Described peripheral circuit comprises:
Current rectifying and wave filtering circuit is used to whole intelligent control unit that suitable power supply is provided;
Relay drive circuit realizes whether the power end plug being connected to automobile end charging plug by the control relay adhesive;
Relay adhesive testing circuit is used to detect whether adhesive of relay, and testing result is passed to central control module;
The pulse signal output circuit, the square-wave signal that is used for central control module is sent is output as the signal that is connected to electric automobile CP terminal through conversion.
2. electric automobile portable charger according to claim 1 is characterized in that, described peripheral circuit further comprises:
Leakage protection circuit, be used to detect electrical enclosure whether and live wire by accident directly be communicated with cause and ground between to produce certain potentials poor;
Current detection circuit, overcurrent whether when being used for judging charging, and whether definite charging is finished.
3. electric automobile portable charger according to claim 1 and 2 is characterized in that, in the described pulse signal output circuit, an I/O port of single-chip microcomputer or chip in the described central control module is connected to the base stage of first triode of this circuit; The CP lead-out terminal of described central control module will be connected between this circuit fuse and the Transient Suppression Diode.
4. electric automobile portable charger according to claim 1 and 2, it is characterized in that, in the described relay drive circuit, with the live wire in the three-phase alternating current of power end plug side input and the zero line fuse of respectively connecting respectively, electric capacity of voltage regulation in parallel again then, be connected to two normally-closed contacts of relay, this live wire is also connected to the pin of a pull-in winding of relay in addition, another pin of described pulling relay coil is connected to the first anode of bidirectional triode thyristor, the second plate of described bidirectional triode thyristor is connected with described zero line, and its control utmost point is connected to the output of photoelectrical coupler; The I/0 port of single-chip microcomputer or chip is connected in the light-emitting diode one termination ﹢ 5V level of described photoelectrical coupler, the other end and central control module.
5. electric automobile portable charger according to claim 1 and 2 is characterized in that, in the described relay adhesive testing circuit, two normally opened contacts of relay are connected to two inputs that exchange photoelectrical coupler; The output of described interchange photoelectrical coupler is connected to an external interrupt of single-chip microcomputer in the central control module or chip.
6. electric automobile portable charger according to claim 1 and 2, it is characterized in that, in the described current rectifying and wave filtering circuit, connected in the described relay drive circuit live wire of fuse and the primary side that zero line is connected respectively to transformer, the secondary side of described transformer is connected to bridge rectifier, the signal that bridge rectifier is good with rectification is connected in the analogue filter circuit, and then by two pressurizers with output voltage stabilize to+12V and-12V, output at+12V connects the 3rd pressurizer, and its voltage output is stabilized in+5V.
7. electric automobile portable charger according to claim 1 and 2 is characterized in that, in the described central control module, the connection of described automobile end charging plug confirms that the CC end is connected to the ADC analog sampling port of single-chip microcomputer or chip by electric resistance partial pressure; Wherein four of single-chip microcomputer or chip I/O ports are connected to the light-emitting diode of four different colours, in order to the demonstration of various situations and fault type; Single-chip microcomputer or chip with the signal of described relay adhesive testing circuit, leakage protection circuit, current detection circuit with certain sample frequency collection; Do and export to relay drive circuit, pulse signal output circuit after logical process is judged, in order to realize function corresponding.
8. electric automobile portable charger according to claim 2 is characterized in that, in the described leakage protection circuit, the live wire in the described relay drive circuit and zero line is passed jointly the annular core of zero sequence current mutual inductor; The secondary side output of described zero sequence current mutual inductor connects an operational amplifier; The magnitude of voltage of output is amplified to the suitable size that single-chip microcomputer in the central control module or chip can read; The output of described operational amplifier is connected to the ADC sampling end of described single-chip microcomputer or chip.
9. electric automobile portable charger according to claim 2 is characterized in that, in the described current detection circuit, the live wire in the described relay drive circuit is passed current transformer; The secondary side of this instrument transformer connects an operational amplifier; The magnitude of voltage of output is amplified to the suitable size that single-chip microcomputer in the central control module or chip can read; The output of described operational amplifier is connected to the ADC sampling end of described single-chip microcomputer or chip.
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| CN2011201103740U CN202034814U (en) | 2011-04-14 | 2011-04-14 | Portable charger for electric vehicle |
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| CN2011201103740U CN202034814U (en) | 2011-04-14 | 2011-04-14 | Portable charger for electric vehicle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130487A (en) * | 2011-04-14 | 2011-07-20 | 上海埃士工业科技有限公司 | Portable charger for electric vehicle and design method thereof |
| CN104682520A (en) * | 2015-03-17 | 2015-06-03 | 北京市计量检测科学研究院 | Electric vehicle AC charging connection device with measurement and detection port |
| CN105914706A (en) * | 2016-06-27 | 2016-08-31 | 毛春梅 | Electric-shock-preventing power supply transformer |
| CN106026005A (en) * | 2016-08-05 | 2016-10-12 | 深圳市沃尔核材股份有限公司 | Pulse protection circuit of electromagnetic lock |
| CN106410885A (en) * | 2016-06-29 | 2017-02-15 | 常熟市立得电器有限公司 | Charging controller for electric vehicle |
| CN106507534A (en) * | 2016-10-19 | 2017-03-15 | 成都尚智恒达科技有限公司 | A kind of lightning protection multivoltage output circuit for LED |
| WO2017063334A1 (en) * | 2015-10-16 | 2017-04-20 | 苏州达思灵新能源科技有限公司 | Portable and mobile power supply for electric car |
| CN107719174A (en) * | 2017-11-14 | 2018-02-23 | 佛山市光洁士新能源科技有限公司 | A kind of portable intelligent charging arm |
| CN108667095A (en) * | 2018-05-16 | 2018-10-16 | 济南保特电子设备有限公司 | A kind of power management distributor |
| CN110126656A (en) * | 2019-05-28 | 2019-08-16 | 蔡甫寒 | GT-101 charging unit |
| CN116476660A (en) * | 2023-04-27 | 2023-07-25 | 澳莱特新能源(惠州)有限公司 | Waterproof electric shock prevention charger and charging system thereof |
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2011
- 2011-04-14 CN CN2011201103740U patent/CN202034814U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130487B (en) * | 2011-04-14 | 2016-08-17 | 上海埃士工业科技有限公司 | Portable charger for electric automobile and method for designing thereof |
| CN102130487A (en) * | 2011-04-14 | 2011-07-20 | 上海埃士工业科技有限公司 | Portable charger for electric vehicle and design method thereof |
| CN104682520A (en) * | 2015-03-17 | 2015-06-03 | 北京市计量检测科学研究院 | Electric vehicle AC charging connection device with measurement and detection port |
| WO2017063334A1 (en) * | 2015-10-16 | 2017-04-20 | 苏州达思灵新能源科技有限公司 | Portable and mobile power supply for electric car |
| CN105914706A (en) * | 2016-06-27 | 2016-08-31 | 毛春梅 | Electric-shock-preventing power supply transformer |
| CN106410885A (en) * | 2016-06-29 | 2017-02-15 | 常熟市立得电器有限公司 | Charging controller for electric vehicle |
| CN106026005A (en) * | 2016-08-05 | 2016-10-12 | 深圳市沃尔核材股份有限公司 | Pulse protection circuit of electromagnetic lock |
| CN106507534A (en) * | 2016-10-19 | 2017-03-15 | 成都尚智恒达科技有限公司 | A kind of lightning protection multivoltage output circuit for LED |
| CN107719174A (en) * | 2017-11-14 | 2018-02-23 | 佛山市光洁士新能源科技有限公司 | A kind of portable intelligent charging arm |
| CN108667095A (en) * | 2018-05-16 | 2018-10-16 | 济南保特电子设备有限公司 | A kind of power management distributor |
| CN108667095B (en) * | 2018-05-16 | 2024-01-12 | 济南保特电子设备有限公司 | Power management distributor |
| CN110126656A (en) * | 2019-05-28 | 2019-08-16 | 蔡甫寒 | GT-101 charging unit |
| CN116476660A (en) * | 2023-04-27 | 2023-07-25 | 澳莱特新能源(惠州)有限公司 | Waterproof electric shock prevention charger and charging system thereof |
| CN116476660B (en) * | 2023-04-27 | 2023-11-03 | 澳莱特新能源(惠州)有限公司 | Waterproof electric shock prevention charger and charging system thereof |
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