CN110723022A - Portable alternating-current charging stake controller - Google Patents
Portable alternating-current charging stake controller Download PDFInfo
- Publication number
- CN110723022A CN110723022A CN201911007172.0A CN201911007172A CN110723022A CN 110723022 A CN110723022 A CN 110723022A CN 201911007172 A CN201911007172 A CN 201911007172A CN 110723022 A CN110723022 A CN 110723022A
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- module
- charging
- voltage
- main control
- control chip
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention discloses a portable alternating-current charging pile controller, which relates to the technical field of alternating-current charging piles of electric vehicles.A control module acquires and controls the voltage in a guide module, the voltage is transmitted to a main control chip after AD conversion, the main control chip controls a relay to be closed, 220V alternating current is transmitted to a charging gun through an electric leakage and overvoltage protection module, the voltage of the electric leakage and overvoltage protection module is acquired at the same time, and when the voltage is greater than a given value, the control module controls an LED fault lamp of an indicator lamp module to be turned on, stop charging and turn off a charging lamp; the external power supply module provides power for the indicator lamp module, the control guidance module and the electric leakage and overvoltage protection module. The invention has simple circuit, convenient use, low manufacturing cost, small volume and convenient carrying, can provide output power of 7 kilowatts, has higher charging speed, relatively shortens the charging time of the electric automobile, reminds a user of the charging state of the charging pile by the indicator light and reports errors in time when the charging pile fails.
Description
Technical Field
The invention relates to the technical field of electric automobile alternating-current charging piles, in particular to a portable alternating-current charging pile controller.
Technical Field
Along with the development of science and technology and the reinforcing of consumer environmental protection consciousness, the electric motor car more and more becomes the selection of people's trip, fills the supply and short of demand between electric pile and the electric automobile market open and promoted the development of novel electric pile that fills, design convenient to use, excellent performance fill electric pile will become consumer's first-choice. The type of the present charging pile mainly has two types of direct current quick charging and alternating current slow charging, but the direct current quick charging pile is difficult to move, and the problem of insufficient electric quantity of the electric vehicle can not be solved at any time. Existing alternating-current charging piles can achieve arbitrary switching of 8A and 13A output currents on the same charging pile, but the charging piles are small in output current and long in charging time, output power of the alternating-current charging piles is increased within a safe range, charging time is shortened, and the charging piles which are convenient to carry and fast to charge are designed to be development trends of the charging piles.
Disclosure of Invention
In order to overcome the defects, the portable alternating-current charging pile controller provided by the invention can be used for charging after being connected with a commercial power socket, is convenient to operate, can achieve the maximum output current of 32A when 220V alternating current is output, can relatively shorten the charging time, is safe and reliable, and solves the technical problems that a direct-current rapid charging pile is not easy to move and is inconvenient to carry.
In order to solve the above technical problems, the present invention provides a portable ac charging pile controller, including: the control module collects the voltage in the control guide module, the voltage is transmitted to the main control chip after AD conversion, the main control chip controls the relay to be closed, 220V alternating current is transmitted to the charging gun through the electric leakage and overvoltage protection module, the voltage of the electric leakage and overvoltage protection module is collected, and when the voltage is greater than a given value, the control module controls the LED fault lamp of the indicator lamp module to be turned on, the charging is stopped, and the charging lamp is turned off; the external power supply module provides power for the indicator lamp module, the control guidance module and the electric leakage and overvoltage protection module.
Furthermore, the control module comprises an AD converter, a main control chip and a driving array, wherein the AD converter converts the voltage detected by the control guide module and the voltage detected by the overvoltage protection module into digital signals and transmits the digital signals to the main control chip, and the driving array drives a relay in the leakage and overvoltage protection module and a single-pole double-throw relay in the indicator light module to work when the main control chip sends a command of closing or opening the relay.
Further, the leakage and overvoltage protection module comprises a first operational amplifier, a relay, a fuse and a piezoresistor; the live wire and the zero wire input by the single-phase alternating current are respectively connected with resistors R7 and R8 and then are connected in parallel with the non-inverting input end of the first operational amplifier, meanwhile, the live wire and the zero wire are connected with the piezoresistor and then are connected with the ground wire, and then the live wire and the zero wire are connected with the relay through the fuse and finally are connected with the charging gun; the output end of the first operational amplifier is connected with an IN1 pin of the AD converter, and the drive array drives the relay to work.
Furthermore, the control guidance module comprises a second operational amplifier, a single-pole double-throw relay and a photoelectric coupler, wherein an I/O pin of the main control chip is connected to the photoelectric coupler through a resistor R5, connected with the single-pole double-throw relay and a resistor R6 through the photoelectric coupler, and connected with the non-inverting input end of the second operational amplifier through voltage division of resistors R2 and R3; the PWM signal generated by the main control chip is subjected to signal amplification through a photoelectric coupler to form a 12V PWM signal, and the output end of the second operational amplifier is connected with an IN0 pin of the AD converter; resistor R3 confirms the connection of the CP line to the charging gun by control.
Furthermore, the indicator light module comprises LED lights in three states of power supply, charging and failure, and when the controller is connected to a mains supply socket, the LED light of the power supply is on; when the voltage value sampled by the control guide module is within a given range, the charging LED lamp is turned on; when the circuit has overvoltage or leakage phenomenon, the fault LED lamp is on.
Furthermore, the indicator light module is also provided with an emergency stop key, and the emergency stop key is connected with an I/O pin of the main control chip.
Further, the external power supply module provides +5V and +12V power supplies.
Further, the AD converter employs ADC0809 as an analog-to-digital converter.
Further, the main control chip adopts STC89C52 RC.
Further, the driving array employs ULN 2003A.
The invention has the following beneficial effects: the invention provides a portable alternating-current charging pile controller, which can enable the output power of a charging pile to reach 7 kilowatts by controlling the PWM duty ratio to determine the magnitude of output current, is provided with leakage protection and overvoltage protection, has simple circuit, convenient operation, safety, reliability and higher charging speed, relatively shortens the charging time of an electric automobile, and simultaneously reminds a user of the charging state of the charging pile by using an indicator lamp and reports errors in time when the charging pile fails.
Drawings
FIG. 1 is a schematic diagram of the circuit provided by the present invention;
FIG. 2 is a schematic circuit diagram of a leakage and overvoltage protection module according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a control module provided by an embodiment of the invention;
FIG. 4 is a schematic diagram of a control steering module circuit according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of an indicator light module according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following components are merely preferred embodiments, and should not be construed as limiting the scope of the present invention.
Referring to fig. 1, a circuit block diagram according to the present invention is shown. The invention provides a portable alternating-current charging pile controller, which comprises an electric leakage and overvoltage protection module 10, a control module 20, a control guide module 30, an indicator light module 40, an external power supply module 50 and a commercial power socket 60, wherein the electric leakage and overvoltage protection module is connected with the external power supply module; the control module acquires and controls the voltage in the guide module, the voltage is transmitted to the main control chip after AD conversion, the main control chip controls the relay to be closed, 220V alternating current is transmitted to the charging gun through the leakage and overvoltage protection module, the voltage of the leakage and overvoltage protection module is acquired at the same time, and when the voltage is greater than a given value, the control module controls the LED fault lamp of the indicator lamp module to be turned on, the charging is stopped, and the charging lamp is turned off; the external power supply module provides power for the indicator lamp module, the control guidance module and the electric leakage and overvoltage protection module.
Fig. 2 is a schematic diagram of a leakage and overvoltage protection module according to an embodiment of the present invention. The commercial power socket 60 is connected with 220V alternating current, and the current is finally transmitted to the charging gun through a lead by dividing the voltage through resistors R7 and R8 in the leakage and overvoltage protection module 10 and the non-inverting input end of the operational amplifier 101; the leakage and overvoltage protection module 10 is provided with a voltage dependent resistor 102 and a fuse 103 to realize overvoltage and overcurrent protection, and the state of a relay 104 is controlled by a main control chip to realize charging and overvoltage protection of the electric vehicle; the piezoresistor is small in size and convenient to weld, when a circuit breaks down, high voltage is applied to two ends of the piezoresistor instantly, the resistance value of the piezoresistor becomes infinitesimal, the piezoresistor is conducted, large current is introduced into the ground, and power supply equipment is protected from being damaged, so that the piezoresistor is selected as a leakage and overvoltage protection device.
The specific circuit connection is as follows: the live wire and the zero wire input by the single-phase alternating current are respectively connected with R7 and R8 and then are connected in parallel with the non-inverting input end of an operational amplifier LM385, meanwhile, the live wire and the zero wire are connected with a piezoresistor 102 and then are connected with a ground wire, and then the live wire and the zero wire are connected with a relay 104 through a fuse 103 and finally are connected with a charging gun; the relay 103 and the single-pole double-throw relay 303 are connected with pins 6C and 7C of a driving array (ULN2003A)203, and the output end of the operational amplifier 101 is connected with an IN1 channel IN the AD converter 201.
Fig. 3 is a schematic diagram of a control module circuit according to an embodiment of the present invention. The control module 20 adopts ADC0809 as an analog-to-digital converter and STC89C52RC as a main control chip; pins of a main control chip 202XTAL1 and XTAL2 are connected with a crystal oscillator Y1, capacitors C1 and C2 and a resistor R1, a RST pin is connected with a capacitor C3 and a reset switch S1, pins P1.0, P1.1 and P1.2 are respectively connected with pins START, OE and ALE of an AD converter 201, pins P2.0-P2.7 are sequentially connected with pins D0-D7 of the AD converter 201, a pin P3.0 is connected with a pin CLOCK of the AD converter 201, pins P3.5-P3.7 are respectively connected with pins ADDA, ADDB and ADDC of the AD converter 201, and pins P1.7 and P3.4 are respectively connected with pins 2037B and 6B of a drive array (ULN 2003A); the AD converters 201IN0 and IN1 respectively collect and control the voltage sampled IN the guidance module 30 and the voltage sampled IN the leakage and overvoltage protection module 10, convert analog signals into digital signals, and transmit the digital signals to the main control chip 202; the driving array (ULN2003A)203 drives the relay 103 and the single-pole double-throw relay 303 to work when the main control chip 202 sends out a relay closing or opening command. In actual work, the main control chip cannot directly drive the relay to work, and a driving array needs to be added between the main control chip and the relay to drive the relay to work.
Fig. 4 is a schematic diagram of a control steering module circuit according to an embodiment of the present invention. The control guidance module 30 is provided with a voltage dividing resistor R2, a voltage of R3, and an operational amplifier 301 to transmit the voltage to the AD converter 201, and is connected to the charging gun through a control confirmation CP line 302. The control guidance module 30 receives a PWM signal sent by the main control chip through the interface 201, a pin P1.5 of the main control chip 202 is connected to the photoelectric coupler 304 through the resistor R5, connected to the single-pole double-throw relay 303 and the resistor R6 through the photoelectric coupler 304, and connected to the non-inverting input terminal of the operational amplifier 301 through the resistors R2 and R3; the PWM signal generated by the main control chip 202 is amplified by the photocoupler 304 to form a 12V PWM signal, and the output terminal of the operational amplifier 301 is connected to the IN0 channel of the AD converter 201.
In this embodiment, the guidance method is controlled according to the standard of the charging mode 3 connection method B in the national standard GB/T18487.1-2015: when the control confirms that the CP sampling voltage is +12V, the single-pole double-throw relay 303 controls the single-pole double-throw switch to be switched to be connected with the PWM; when the voltage is +9V, the charging connecting device is connected; when the voltage is +6V, the vehicle can be charged.
Referring to fig. 5, a schematic diagram of an indicator module according to an embodiment of the present invention is provided. The indicator light module 40 is provided with three LEDs to respectively represent three states: power source 401, charge 402, fault 403; the LED power source 401, the LED charging 402 and the LED fault 403 are respectively connected with pins P0.0, P0.1 and P0.2 of the main control chip 202, and when the controller is connected to a mains supply socket, the power lamp is on; when the voltage collected by the channel of the AD converter IN0 is more than 4.3V, a fault lamp is on; when the voltage collected by the IN1 channel is less than 2.1V, the charging lamp is on; the indicating lamp module is provided with an emergency stop button 404 which can be directly pressed down when the controller fails, the circuit is disconnected, the emergency stop button 404 is connected with a pin of a main control chip 202P0.4, meanwhile, pins of the main control chip 202P0.0-P0.4 are connected with a resistor RP1, and the resistor clamps an uncertain signal at a high level to provide a driving voltage for the LED, so that the transmission is more stable.
The external power supply module 50 is provided with +12V and +5V power supplies, the external power supply module 50 provides +12V power supplies for the operational amplifier 302, the single-pole double-throw relay 303, the photoelectric coupler 304, the driving array 203 and the resistor exclusion RP1, and provides +5V power supplies for the AD converter 201, the main control chip 202 and the relay 103.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A portable AC charging post controller, comprising: the control module collects the voltage in the control guide module, the voltage is transmitted to the main control chip after AD conversion, the main control chip controls the relay to be closed, 220V alternating current is transmitted to the charging gun through the electric leakage and overvoltage protection module, the voltage of the electric leakage and overvoltage protection module is collected, and when the voltage is greater than a given value, the control module controls the LED fault lamp of the indicator lamp module to be turned on, the charging is stopped, and the charging lamp is turned off; the external power supply module provides power for the indicator lamp module, the control guidance module and the electric leakage and overvoltage protection module.
2. The controller of claim 1, wherein the control module comprises an AD converter, a main control chip and a driving array, the AD converter converts the voltage detected by the control guidance module and the voltage detected by the overvoltage protection module into digital signals and transmits the digital signals to the main control chip, and the driving array drives the relay in the leakage and overvoltage protection module and the single-pole double-throw relay in the indicator light module to operate when the main control chip sends a command to close or open the relay.
3. The portable ac charging post controller of claim 2, wherein the leakage and overvoltage protection module comprises a first operational amplifier, a relay, a fuse and a varistor; the live wire and the zero wire input by the single-phase alternating current are respectively connected with resistors R7 and R8 and then are connected in parallel with the non-inverting input end of the first operational amplifier, meanwhile, the live wire and the zero wire are connected with the piezoresistor and then are connected with the ground wire, and then the live wire and the zero wire are connected with the relay through the fuse and finally are connected with the charging gun; the output end of the first operational amplifier is connected with an IN1 pin of the AD converter, and the drive array drives the relay to work.
4. The controller of claim 3, wherein the control guidance module comprises a second operational amplifier, a single-pole double-throw relay and a photoelectric coupler, the I/O pin of the main control chip is connected to the photoelectric coupler through a resistor R5, the single-pole double-throw relay and a resistor R6 are connected through the photoelectric coupler, and the I/O pin is connected to the non-inverting input end of the second operational amplifier through voltage division of resistors R2 and R3; the PWM signal generated by the main control chip is subjected to signal amplification through a photoelectric coupler to form a 12V PWM signal, and the output end of the second operational amplifier is connected with the input end of the AD converter; resistor R3 confirms the connection of the CP line to the charging gun by control.
5. The portable alternating-current charging pile controller according to claim 4, wherein the indicator light module comprises LED lights in three states of power supply, charging and failure, and when the controller is connected to a mains supply socket, the LED light of the power supply is turned on; when the voltage value sampled by the control guide module is within a given range, the charging LED lamp is turned on; when the circuit has overvoltage or leakage phenomenon, the fault LED lamp is on.
6. The controller of claim 5, wherein the indicator light module further comprises an emergency stop button, and the emergency stop button is connected to an I/O pin of the main control chip.
7. The controller of claim 5, wherein the external power module provides +5V and +12V power.
8. The controller of claim 2, wherein the AD converter employs ADC0809 as an analog-to-digital converter.
9. The controller of claim 2, wherein the main control chip is STC89C52 RC.
10. The portable ac charging post controller of claim 2, wherein said driving array is ULN 2003A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007172.0A CN110723022A (en) | 2019-10-22 | 2019-10-22 | Portable alternating-current charging stake controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007172.0A CN110723022A (en) | 2019-10-22 | 2019-10-22 | Portable alternating-current charging stake controller |
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| Publication Number | Publication Date |
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| CN110723022A true CN110723022A (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911007172.0A Pending CN110723022A (en) | 2019-10-22 | 2019-10-22 | Portable alternating-current charging stake controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111559265A (en) * | 2020-05-25 | 2020-08-21 | 惠州市丝鹭新能源科技有限公司 | Portable 16KW alternating-current charging pile |
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|---|---|---|---|---|
| CN106329687A (en) * | 2016-08-31 | 2017-01-11 | 天宝电子（惠州）有限公司 | Portable AC charging pile control circuit |
| CN106410885A (en) * | 2016-06-29 | 2017-02-15 | 常熟市立得电器有限公司 | Charging controller for electric vehicle |
| CN206327171U (en) * | 2016-12-23 | 2017-07-14 | 安徽环旭新能源科技有限公司 | A kind of Portable AC charging pile for electric automobile |
| CN108482152A (en) * | 2018-03-26 | 2018-09-04 | 珠海小可乐科技有限公司 | Portable charger and its controller |
| CN211107034U (en) * | 2019-10-22 | 2020-07-28 | 中国计量大学 | Portable alternating-current charging pile controller |
-
2019
- 2019-10-22 CN CN201911007172.0A patent/CN110723022A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410885A (en) * | 2016-06-29 | 2017-02-15 | 常熟市立得电器有限公司 | Charging controller for electric vehicle |
| CN106329687A (en) * | 2016-08-31 | 2017-01-11 | 天宝电子（惠州）有限公司 | Portable AC charging pile control circuit |
| CN206327171U (en) * | 2016-12-23 | 2017-07-14 | 安徽环旭新能源科技有限公司 | A kind of Portable AC charging pile for electric automobile |
| CN108482152A (en) * | 2018-03-26 | 2018-09-04 | 珠海小可乐科技有限公司 | Portable charger and its controller |
| CN211107034U (en) * | 2019-10-22 | 2020-07-28 | 中国计量大学 | Portable alternating-current charging pile controller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111559265A (en) * | 2020-05-25 | 2020-08-21 | 惠州市丝鹭新能源科技有限公司 | Portable 16KW alternating-current charging pile |
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