CN116620075A - Chopper type charging pile - Google Patents

Chopper type charging pile Download PDF

Info

Publication number
CN116620075A
CN116620075A CN202310718984.6A CN202310718984A CN116620075A CN 116620075 A CN116620075 A CN 116620075A CN 202310718984 A CN202310718984 A CN 202310718984A CN 116620075 A CN116620075 A CN 116620075A
Authority
CN
China
Prior art keywords
direct current
charging
power
vacuum relay
current module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310718984.6A
Other languages
Chinese (zh)
Inventor
申英强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202310718984.6A priority Critical patent/CN116620075A/en
Publication of CN116620075A publication Critical patent/CN116620075A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model provides a chopper type charging pile which comprises a casing, wherein a three-phase electromagnetic switch, a rectification chopper type direct current module and a vacuum relay are arranged in the casing, two ends of the three-phase electromagnetic switch are respectively connected with a three-phase power supply and the rectification chopper type direct current module, the rectification chopper type direct current module is connected with the vacuum relay, the vacuum relay is connected with a charging gun interface, and the charging gun interface is arranged in the casing; the three-phase electromagnetic switch, the rectification chopper type direct current module, the vacuum relay and the charging gun interface are all connected with a main control board, the main control board is respectively connected with a wide voltage control power supply and a wireless module, the wide voltage control power supply is connected with a three-phase power supply, and the wireless module is connected with a cloud server. The utility model is easy to realize voltage upgrading and greatly reduces the cost; the leakage current is smaller, and the safety is higher; the single three-phase power rectification chopper type direct current module can generate higher power without connecting multiple power supplies in parallel with each charging gun interface, so that the fault rate is greatly reduced.

Description

Chopper type charging pile
Technical Field
The utility model relates to the technical field of charging piles, in particular to a chopping type charging pile.
Background
With the increasing number of charging cars, car charging piles are becoming popular in life. The existing new energy automobile charging pile is mostly realized by adopting an inverter power supply, and a plurality of groups of power supplies are connected in parallel to provide high-power output. The inverter output of the multiple inverter power supplies is limited by conditions, and the current power of the inverter power supplies is only 20, 30 and 40 kilowatts, for example, the charging power needs to reach 100 kilowatts, and the inverter power supplies are formed by combining 6 20 kilowatts, 3 40 kilowatts or 4 20 kilowatts in parallel, so that the safety leakage standard switch cannot be installed in the parallel connection of multiple power supplies. After rectification, three-phase alternating current input voltage is respectively supplied to the primary two groups of coils of the transformer in a pulse mode through two power elements, the direct current voltage at the primary end is converted into alternating current to supply power to the transformer, the frequency is generally above 10kHZ, and the alternating current input voltage is output through the secondary coil of the transformer and is supplied to the transformer in a direct current mode after rectification. Because a voltage spike is generated when the pulse current passes through the primary coil of the transformer to form interference to the control circuit and the power element, one end of the primary coil of the transformer needs to be grounded through an anti-interference capacitor in the inverter circuit, so that an interference signal is eliminated through a ground wire, and meanwhile, a leakage current to the ground is formed. Taking an inverter power supply of 20 kilowatts as an example, the leakage value of the inverter power supply can reach 40 milliamperes, so that a 120 kilowatt quick charging pile with 6 20 kilowatt power supply modules has the leakage value of 240 milliamperes, and a safety leakage switch with the leakage value of below 30 milliamperes cannot be installed. In the practical example, shenzhen electric company prescribes that the leakage value of the leakage switch of the charging pile is 300 milliamperes.
Meanwhile, the existing charging pile improves power by connecting a plurality of power supply modules in parallel, the power of a single power supply module of most charging piles is 20 kilowatts, the price of the single power supply module is 1200 yuan, 6 direct current modules of 20 kilowatts are needed for manufacturing a quick charging pile of 120 kilowatts, the needed cost is increased by 6 times, the manufacturing cost is high, the fault rate is 6 times higher than that of the single power supply module, if one charging station is provided with 10 quick charging piles of 120 kilowatts, the number of the power supply modules is up to 60, and the fault rate is high. In addition, because the inverter power supply module is used, the input and output voltages of the existing charging pile are solidified, and if the specifications of the existing inverter charging pile comprise three types of AC380V to DC750V, AC to DC500V and AC380 to DC1000V, the charging pile needs to be integrally replaced if the current charging pile is required to be upgraded from 500V to 750V or from 750V to 1000V, the voltage requirement of the upgrade can be met, and the cost is high.
For example, the utility model with publication number CN207345518U discloses an ac charging pile with active filtering function, which comprises a card reader, a charging pile controller, an ammeter, a contactor, an inversion module and a charging gun head, wherein the charging pile controller comprises a charging pile control unit and an inversion module controller, the charging pile control unit is connected with the ammeter, the ammeter is connected with the charging gun head through the contactor, the inversion module controller is connected between the contactor and the charging gun head through the inversion module, the ammeter is also connected with a phase line and a zero line, the charging pile control unit realizes charging pile charging through the ammeter and the card reader, and the inversion module controller controls the inversion module to realize unit power factor and low harmonic operation of the ac charging pile. The inversion module controller realizes high-precision harmonic current control by using double-zero proportion resonance control. The alternating-current charging pile has the functions of harmonic suppression and reactive compensation, an external active power filter is not needed, and the compensation point is positioned at the rear end of the ammeter, so that ammeter charging errors caused by harmonic current are reduced. However, the charging pile provided by the utility model adopts an inversion module, so that potential safety hazards exist.
Disclosure of Invention
Aiming at the technical problems of larger leakage value and higher charging voltage upgrading cost of the existing inversion type charging pile, the utility model provides the chopping type charging pile which is low in cost, few in leakage current and high in safety.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows: the utility model provides a chopper type fills electric pile, includes the casing, sets up three-phase electromagnetic switch, rectification chopper type direct current module and vacuum relay in the casing, and three-phase electromagnetic switch's both ends are connected with three-phase power and rectification chopper type direct current module respectively, and rectification chopper type direct current module is connected with vacuum relay, and vacuum relay is connected with charging gun interface, and charging gun interface sets up at the casing; the three-phase electromagnetic switch, the rectification chopper type direct current module, the vacuum relay and the charging gun interface are all connected with a main control board, the main control board is respectively connected with a wide voltage control power supply and a wireless module, the wide voltage control power supply is connected with a three-phase power supply, and the wireless module is connected with a cloud server.
Preferably, the vacuum relay comprises an anode vacuum relay and a cathode vacuum relay, wherein the anode output end of the rectification chopper type direct current module is connected with the input terminal of the anode vacuum relay, the cathode output end of the rectification chopper type direct current module is connected with the input terminal of the cathode vacuum relay, the output terminal of the anode vacuum relay is connected with the charging anode of the charging gun interface, and the output terminal of the cathode vacuum relay is connected with the charging cathode of the charging gun interface; and the control ends of the positive vacuum relay and the negative vacuum relay are connected with a main control board.
Preferably, the wide voltage control power supply is connected with the power input end of the main control board through a 12V power line, the power output end of the main control board is connected with the power end of the charging gun interface through a 12V power line, the main control board is connected with the communication port of the charging gun interface through a CAN bus, and the power end and the communication port of the charging gun interface are both connected with the battery management system of the charging automobile.
Preferably, the rectifying chopper type direct current module is a three-phase rectifying chopper type direct current module or a single-phase rectifying chopper type direct current module
Preferably, the alternating voltage input by the rectification chopper type direct current module is 320-740V, and the highest direct current voltage output by the rectification chopper type direct current module is 1.35 times of the input alternating voltage.
Preferably, the output power of the rectifying chopper type direct current module is 10 KKW to 400 KW.
Preferably, the rectification chopper type direct current module comprises a power control circuit and a charging circuit, and the power control circuit is respectively connected with the main control board and the charging circuit.
Preferably, the charging circuit comprises a rectifier, an input end of the rectifier is connected with an output end of the three-phase electromagnetic switch, an energy storage capacitor is connected in parallel with an output end of the rectifier, an anode of the energy storage capacitor is connected with an input end of the reactor through a switching element, a midpoint between the switching element and the input end of the reactor is connected with a cathode of the freewheel diode, an anode of the freewheel diode is connected with a cathode of the capacitor, and a load is arranged between the output end of the reactor and an anode of the freewheel diode; the switching element is connected to a power control circuit.
The charging pile has a wide output voltage range, and the usable voltage is 320V to 740V; the output voltage of the three-phase power rectification chopper module is changed along with the input voltage, the charging voltage of the highest direct current can be output by adjusting the input alternating voltage, the whole charging pile does not need to be replaced, the voltage upgrading is easy to realize, and the cost is greatly reduced; the three-phase power rectification chopper module is used for processing the current in the connecting circuit, the energy stored by the reactance is converted into follow current by the follow current diode and disappears, no voltage spike is generated, the ground current is less than 5 milliamperes, a leakage switch with the leakage value of 5-10 milliamperes, which accords with the safety standard, can be used, the leakage current is smaller, the safety is higher, and the personal safety of a user is effectively ensured; meanwhile, voltage spikes cannot be generated in the three-phase power rectification chopper type module, a single three-phase power rectification chopper type module can generate higher power, the power of each power supply can reach 10-400 kilowatts, multiple power supplies are not required to be connected with each charging gun interface in parallel, and the fault rate is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural diagram of the three-phase rectifying chopper module in fig. 1.
In the figure, 1 is a three-phase electromagnetic switch, 2 is a wide voltage control power supply, 3 is a main control board, 4 is a charging gun interface, 5 is a rectifying chopper type direct current module, 6 is an anode vacuum relay, 7 is a cathode vacuum relay, and 8 is a surfing module.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, a chopper type charging pile comprises a casing, wherein a three-phase electromagnetic switch 1, a rectification chopper type direct current module 5 and a vacuum relay are arranged in the casing, the rectification chopper type direct current module 5 is a three-phase rectification chopper type direct current module, two ends of the three-phase electromagnetic switch 1 are respectively connected with a three-phase power supply and the rectification chopper type direct current module 5, the three-phase electromagnetic switch 1 is used for switching on or switching off the three-phase power supply, and whether the three-phase power supply is conducted with the rectification chopper type direct current module 5 or not is controlled. The rectifying chopper type direct current module 5 is connected with a vacuum relay, the vacuum relay is connected with the charging gun interface 4, and the vacuum relay is used for controlling whether the rectifying chopper type direct current module 5 provides output voltage for the charging gun interface 4. The charging gun interface 4 is arranged on the shell and used for being connected with a charging port of a new energy automobile to be charged, acquiring charging information of the new energy automobile and charging the new energy automobile. The three-phase electromagnetic switch 1, the rectification chopper type direct current module 5, the vacuum relay and the charging gun interface 4 are all connected with the main control board 3, and the main control board 3 controls the on-off of the charging connection circuit through controlling the three-phase electromagnetic switch 1, the rectification chopper type direct current module 5, the vacuum relay and the charging gun interface 4. The main control board 3 is respectively connected with the wide voltage control power supply 2 and the wireless module 8, the wide voltage control power supply 2 is connected with the three-phase power supply, and the wide voltage control power supply 2 is responsible for converting the A phase and the B phase of the line voltage input by the three-phase power supply into 12V control voltage for the main control board 3 to use. The wireless module 8 is connected with the cloud server, the wireless module 8 is a WIFI module or a 5G communication module, charging information of the charging gun interface 4 is uploaded through the wireless module 8, and meanwhile, the main control panel 3 is remotely controlled through the cloud server to control the starting and stopping of charging of the charging gun interface 4, power and abnormal alarm and the like.
As shown in fig. 1, the vacuum relay comprises a positive electrode vacuum relay 6 and a negative electrode vacuum relay 7, wherein the positive electrode output end of the rectification chopper type direct current module 5 is connected with the input terminal of the positive electrode vacuum relay 6, the negative electrode output end of the rectification chopper type direct current module 5 is connected with the input terminal of the negative electrode vacuum relay 7, the output terminal of the positive electrode vacuum relay 6 is connected with the charging positive electrode of the charging gun interface 4, and the output terminal of the negative electrode vacuum relay 7 is connected with the charging negative electrode of the charging gun interface 4; the control ends of the positive vacuum relay 6 and the negative vacuum relay 7 are connected with the main control board 3. The positive pole vacuum relay 6 is mainly used for controlling the positive pole of the rifle interface to open and close, and the negative pole vacuum relay 7 is mainly used for controlling the negative pole of rifle interface to open and close.
As shown in fig. 1, the wide voltage control power supply 2 is connected with the power input end of the main control board 3 through a 12V power line, the 12V power line comprises an anode power line and a cathode power line, the anode power line is connected with the anode of the power input end of the main control board 3, and the cathode power line is connected with the cathode of the power input end of the main control board 3, so as to provide electric energy for the main control board 3. The power output end of the main control board 3 is connected with the power end of the charging gun interface 4 through a 12V power line, namely, the positive electrode and the negative electrode of the 12V power line are respectively connected with the positive electrode and the negative electrode of the power end of the charging gun interface 4, so that the 12V control power of the main control board 3 is transmitted to the power end of the charging gun interface 4. The main control board 3 is connected with the communication port of the charging gun interface 4 through the CAN bus, the power end and the communication port of the charging gun interface 4 are both connected with the battery management system of the charging car through the charging gun, the battery management system BMS is activated through the power end of the charging gun interface 4, and the battery management system BMS is read through the communication port. The charging gun interface 4 is internally provided with at least 6 contacts to realize the communication, control power supply and charging connection of the main control board and the battery management system of the charging automobile.
The alternating current voltage input by the rectification chopper type direct current module 5 is 320-740V, the highest direct current voltage output by the rectification chopper type direct current module 5 is 1.35 times of the input alternating current voltage, and the rectification chopper type direct current module does not need to be provided with a step-up or step-down transformer. The output power of the rectifying chopper type direct current module 5 is 10 KKKW to 400 KKKW, and each charging gun interface 4 is only connected with one rectifying chopper type direct current module, so that the fault rate is greatly reduced.
As shown in fig. 2, the rectifying chopper type dc module 5 includes a power control circuit and a charging circuit, the power control circuit is connected with the main control board 3 through a communication interface, the power control circuit is connected with the charging circuit, and the power control circuit is used for adjusting parameters of components in the charging circuit, so as to output different voltages. The charging circuit comprises a rectifier, wherein the input end of the rectifier is connected with the output end of the three-phase electromagnetic switch 1, the output end of the rectifier is connected with an energy storage capacitor 51 in parallel, the positive electrode of the energy storage capacitor 51 is connected with the input end of a reactor 54 through a switching element 52, the middle point between the switching element 52 and the input end of the reactor 54 is connected with the negative electrode of a follow current diode, the positive electrode of the follow current diode is connected with the negative electrode of the capacitor 51, a load 55 is arranged between the output end of the reactor 54 and the positive electrode of the follow current diode, and the two ends of the load 55 are respectively the positive and negative output ends of a rectification chopper type direct current module 5; the switching elements 52 are each connected to a power control circuit.
The rectifier is a three-phase rectifying circuit, and the input end of the three-phase rectifying circuit is connected with a three-phase power supply through a three-phase electromagnetic switch 1. After flowing into a three-phase rectifying circuit of a three-phase rectifying chopper type direct current module 5 through a three-phase electromagnetic switch 1, a three-phase power supply firstly rectifies and stores energy through an energy storage capacitor 51, and then supplies power to a reactor 54 in a pulse mode through a switching element 52 to generate a current I1, wherein the frequency is between 10KHz and 20 KHz; when the pulse is in the base state, the switching element is turned off, the output of the reactance 54 generates a freewheel current I2 through the load, and the freewheel current I2 returns to the input of the reactor through the freewheel diode 53. Because the flywheel diode 53 is arranged in the three-phase rectification chopper type direct current module 5, the energy stored in the reactance is converted into flywheel current and disappears, and no voltage spike is generated in the charging circuit of the three-phase rectification chopper type direct current module 5, so that an anti-interference capacitor is not required to be installed, the leakage current to the ground is very small, is generally lower than 0.5 milliampere, and the safety coefficient of the charging pile is higher. Meanwhile, if the power in the charging circuit needs to be increased, only the reactance, the switching element and the freewheeling diode need to be replaced or added, and the power control circuit does not need to be replaced, so that the self cost of the three-phase rectifying chopper type direct current module 5 cannot be multiplied along with the increase of the required power.
The three-phase rectification chopper type direct current power supply module is internally provided with no transformer, the highest direct current voltage output by the three-phase rectification chopper type direct current power supply module is associated with the input alternating current voltage according to a certain proportion, and the three-phase rectification chopper type direct current power supply module is calculated according to a bridge rectification direct current electrical voltage formula: udc=1.35 UAC, where UDC is the output dc voltage, UAC is the input ac voltage, and 1.35 is the conversion function, i.e., UDC/1.35=uac, so when the highest dc voltage is required to be 750V, the input ac voltage is 750V divided by 1.35 and equals 555V. When the input ac voltage is 740V, the output dc voltage is 740v×1.35=999V. Therefore, when the output voltage needs to be regulated, only the alternating current input voltage needs to be regulated, the integral replacement of the charging pile by using the inverter power supply at present is avoided, the highest output direct current voltage can be changed, and the cost of the charging pile is further reduced.
The control circuit comprises a wide voltage control power supply 2, a main control board 3 and a surfing module 8, wherein a three-phase electromagnetic switch 1, a rectification chopper type direct current module 5, an anode vacuum relay 6, a cathode vacuum relay 7, the wide voltage control power supply 2 and the surfing module 8 are all connected with the main control board 3, the main control board 3 is connected with a charging gun interface 4, the wide voltage control power supply 2 is connected with a three-phase power supply, and the surfing module 8 is connected with a cloud server. The wide voltage control power supply 2 is responsible for obtaining input voltage from a three-phase power supply and converting the input voltage into control voltage for the main control board 3, and the input voltage of the wide voltage control power supply 2 can be 320V-740V. The main control board 3 is mainly used for controlling the connection circuit of the battery management system of the BMS of the electric automobile to open and close the highest charging voltage and the highest charging current as well as the positive electrode vacuum relay 6 and the negative electrode vacuum relay 7. The internet surfing module 8 is mainly used for acquiring charging pile information from the main control board 3, transmitting the charging pile information to the cloud server, transmitting the charging pile information from the cloud server to the main control board 3 to control the starting and stopping power of charging, and uploading abnormal alarm information to the cloud server by the internet surfing module 8 when the charging pile is abnormal.
When the rifle that charges on the rifle interface 4 charges inserts the car and charges the mouth, the battery management system BMS of car passes through signal line and the communication of main control board 3, main control board 3 passes through the rifle interface 4 that charges and receives battery management system BMS and need charge voltage and current information, after handling, pass through wireless module and convey to the high in the clouds server, the high in the clouds server sends control command and gives the main control board, main control board 3 opens through CAN bus control rectification chopper type direct current module, three-phase electromagnetic switch closes and the coil of anodal vacuum relay 6 and negative pole vacuum relay 7 is closed, main control board 3 control highest charge voltage, the biggest charge current makes rectification chopper type direct current module charge according to battery management system BMS's charge voltage and current information to the car. When the battery management system BMS detects that the battery voltage of the automobile meets the requirement, a charging stopping instruction is sent out, a control instruction is sent out through a communication line, the main control board is used for switching off the three-phase electromagnetic switch, the rectifying chopper type direct current module 5 is switched off, and the positive electrode vacuum relay 6 and the negative electrode vacuum relay 7 are switched off to stop charging.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (8)

1. The chopping type charging pile is characterized by comprising a casing, wherein a three-phase electromagnetic switch (1), a rectifying chopping type direct current module (5) and a vacuum relay are arranged in the casing, two ends of the three-phase electromagnetic switch (1) are respectively connected with a three-phase power supply and the rectifying chopping type direct current module (5), the rectifying chopping type direct current module (5) is connected with the vacuum relay, the vacuum relay is connected with a charging gun interface (4), and the charging gun interface (4) is arranged on the casing; three-phase electromagnetic switch (1), rectification chopper formula direct current module (5), vacuum relay and rifle interface (4) that charge all are connected with main control board (3), and main control board (3) are connected with wide voltage control power (2) and wireless module (8) respectively, and wide voltage control power (2) are connected with three-phase power, and wireless module (8) are connected with the high in the clouds server.
2. The chopping type charging pile according to claim 1, wherein the vacuum relay comprises a positive electrode vacuum relay (6) and a negative electrode vacuum relay (7), the positive electrode output end of the rectifying chopping type direct current module (5) is connected with the input terminal of the positive electrode vacuum relay (6), the negative electrode output end of the rectifying chopping type direct current module (5) is connected with the input terminal of the negative electrode vacuum relay (7), the output terminal of the positive electrode vacuum relay (6) is connected with the charging positive electrode of the charging gun interface (4), and the output terminal of the negative electrode vacuum relay (7) is connected with the charging negative electrode of the charging gun interface (4); the control ends of the positive vacuum relay (6) and the negative vacuum relay (7) are connected with the main control board (3).
3. The chopped wave type charging pile according to claim 1 or 2, characterized in that the wide voltage control power supply (2) is connected with a power input end of the main control board (3) through a 12V power line, a power output end of the main control board (3) is connected with a power end of the charging gun interface (4) through a 12V power line, the main control board (3) is connected with a communication port of the charging gun interface (4) through a CAN bus, and the power end and the communication port of the charging gun interface (4) are both connected with a battery management system of a charging automobile.
4. A chopper-type charging pile according to claim 3, characterized in that the rectifying chopper-type direct current module (5) is a three-phase rectifying chopper-type direct current module or a single-phase rectifying chopper-type direct current module.
5. The chopped wave type charging pile according to claim 4, wherein the alternating current voltage input by the rectification chopped wave type direct current module (5) is 320-740V, and the highest direct current voltage output by the rectification chopped wave type direct current module (5) is 1.35 times of the input alternating current voltage.
6. The chopped charging pile according to claim 5, characterized in that the output power of the rectifying chopped direct current module (5) is 10-400 kw.
7. The chopped wave type charging pile according to claim 5 or 6, characterized in that the rectifying chopped wave type direct current module (5) comprises a power control circuit and a charging circuit, and the power control circuit is respectively connected with the main control board (3) and the charging circuit.
8. The chopper-type charging pile according to claim 7, wherein the charging circuit comprises a rectifier, an input end of the rectifier is connected with an output end of the three-phase electromagnetic switch (1), an energy storage capacitor (51) is connected in parallel with an output end of the rectifier, an anode of the energy storage capacitor (51) is connected with an input end of a reactor (54) through a switching element (52), a midpoint between the switching element (52) and the input end of the reactor (54) is connected with a cathode of a freewheel diode (53), an anode of the freewheel diode (53) is connected with a cathode of the capacitor (51), and a load (55) is arranged between the output end of the reactor (54) and the anode of the freewheel diode (53); the switching element (52) is connected to a power control circuit.
CN202310718984.6A 2023-06-16 2023-06-16 Chopper type charging pile Pending CN116620075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310718984.6A CN116620075A (en) 2023-06-16 2023-06-16 Chopper type charging pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310718984.6A CN116620075A (en) 2023-06-16 2023-06-16 Chopper type charging pile

Publications (1)

Publication Number Publication Date
CN116620075A true CN116620075A (en) 2023-08-22

Family

ID=87617086

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310718984.6A Pending CN116620075A (en) 2023-06-16 2023-06-16 Chopper type charging pile

Country Status (1)

Country Link
CN (1) CN116620075A (en)

Similar Documents

Publication Publication Date Title
Kuperman et al. Battery charger for electric vehicle traction battery switch station
CN102969932B (en) Multifunctional current-type bidirectional AC (Alternating-Current)/DC (Direct-Current) converter and control method thereof
CN102355042B (en) Super-capacitor-based direct current power device of power station and power supply method thereof
CN108933469B (en) Electrical System
WO2021027303A1 (en) Chargeable-dischargeable energy storage apparatus, wireless charging system and electric vehicle
CN205901410U (en) Modular emergent guarantee power
US20120104861A1 (en) High voltage electric accumulators with internal distributed dc-dc converters for self regulation and protection
US20130088196A1 (en) High-voltage battery charging system and charger with such charging system
CN109950969B (en) Transformer substation direct current system emergency power supply based on photovoltaic standby
CN210111623U (en) Energy router for small-sized micro-grid
CN103227487B (en) Fuel cell/lithium ion battery hybrid power energy management system used for electric bicycle
CN112886718B (en) Resonance compensation type current transformer induction power taking system
CN111251930A (en) Direct current fills electric pile equipment
US11811300B2 (en) Isolated converter
CN107785919B (en) Hybrid energy storage system and control method thereof
CN214798998U (en) Energy storage device with high-frequency isolation function
CN113315220A (en) Uninterrupted direct current power supply device and control method
CN220700932U (en) Chopper type charging pile
EP4223580A1 (en) Portable charger for electric vehicle
US20220224225A1 (en) Converter and on-board charger
CN114179643B (en) Bidirectional charging pile
CN116620075A (en) Chopper type charging pile
CN202818129U (en) DSP-controlled adjustable large power distribution type DC power supply
CN205945101U (en) Modular super battery
CN211579667U (en) Direct current charging power supply system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination