The DC charging post wallbox electric car charger for electric vehicles is fixedly installed outside the electric vehicle and connected to the power grid system to convert the AC power from the power grid into the DC power needed by the electric vehicle battery pack, commonly known as "fast charging". It is a control device for DC power supply, which can provide sufficient power, and the output voltage and current can be adjusted continuously, so that it can directly charge the power battery of the electric vehicle, and the charging speed is relatively fast.
I. Technical parameters of DC charging pile wallbox electric car charger take 180kW DC pile as an example)
Technical Parameters
Second, DC charging pilewallbox electric car charger system block diagram
DC charging pilewallbox electric car charger is powered from three-phase AC power grid, outputting two DC power sources with maximum 1000V and 250A, which can charge electric vehicles at the same time or in turn, and the maximum power of a single gun can be up to 180kW.Cooling method: forced air-cooling.
Third, DC charging pile wallbox electric car charger functional requirements
1、Basic composition
180kW DC charging pile includes AC input, rectifier module, output interface, insulation detection module, control module, metering module, monitoring unit, energy management unit and cabinet.
2、Communication interface and communication protocol requirements
180kW DC charging pile wallbox electric car charger and background communication adopts 4G communication.
The charging process of 180kW DC charging pile wallbox electric car charger includes: completion of physical connection, low-voltage auxiliary power, charging handshake stage, charging parameter configuration stage, charging stage and charging end of six stages.
The charging communication protocol of 180kW DC charging pile is in accordance with GB/T 27930-2015 "Communication Protocol for Electric Vehicle Non-vehicle Conductive Charger and Discharger and Battery Management System".
3、Starting mode
With non-contact card reader, mobile phone APP QR code scanning.
4、Charging cable and interface wallbox electric car charger
Charging cable and charging gun interface should meet the requirements of GB T 20234.3-2015 Electric Vehicle Conductive Charging Connection Device Part 3: DC Charging Interface. The length of the charging cable can be customised according to requirements.
5、Charging function wallbox electric car charger
Charging mode setting function, can be divided into automatic control charging mode and manual debugging mode.
6、Human-machine interaction function (optional) wallbox electric car charger
It has a good man-machine interaction interface, and the display characters should be clear and complete, and should be recognisable without relying on the ambient light source.
(1) Adopt 7-inch colour touch screen with a resolution of not less than 800×480.
(2) The screen adopts high sensitivity touch screen mode, with screen fault status detection output.
(3) Touch screen error ± 0.5%, operation, can be recalibrated at any time.
(4) Display output function, should display the following information:
Charging voltage, charging current, charging time, charging power, billing unit price, battery SOC, BMS demand current, electricity
Sichuan Green Science & Technology Co., Ltd.
0086 19158819831
Post time: Aug-10-2024
