dc charging pile

A DC charging pile is a charging device that provides DC power specifically for electric vehicles. It converts AC power into DC power and then directly charges the car's power battery. It is usually used in large charging stations, high-speed service areas and other occasions to provide electric vehicles with a quick energy replenishment service.

The technical parameters of DC charging pile products are as follows:

Parameters	Requirements
General Requirements
EV Charger Type	DC
Charger Capacity	30KW	60KW	120KW	180KW	240KW
Equipment size	L720*W401*H2000/L700*W450*H1680(mm)			L750*W750*H1920(mm)
Product Model NO.	ENC-DCL030A	ENC-DCL060A/B	ENC-DCL120B	ENC-DCL180B	ENC-DCL240B
	ANSI-DCL030A	ANSI-DCL060A/B	ANSI-DCL120B	ANSI-DCL180B	ANSI-DCL240B
	JIS-DCL030A	JIS-DCL060A/B	JIS-DCL120B	JIS-DCL180B	JIS-DCL240B
Mounting	Ground-Mounted
Input Requirements
AC Supply System	Three-Phase, 5 Wire AC system
Nominal Input Voltage	AC380V±15%
Input Frequency	45-65Hz
Environmental Requirements
Ambient Temperature Range	-25 to 55°C
Ambient Humidity	5 to 95%
Storage Temperature	-40 to 70°C
Mechanical Requirements
IP Ratings	IP 54
Cooling	Air-cooled
Output Requirements
Number of Outputs	1	1 or 2	2
Type of Each Output	200-1000VDC
Single Output Max.Current	125 Amp	200/250 Amp
Power Factor	≥0.99(50% load above)
User Interface & Display Requirements
Display & Touch-Screen Size	7 Inches Touch Screen with Shell
User Authentication	QR Code/RFID Card /Password Login
Metering Information	Consumption Units
Communication Requirements
Communication between EVSE and Central server	OCPP 1.6J Protocol (Optional)
Interface between Charger and CMS	Ethernet/3G/4G/WIFI (Optional)
Protection & Safety Requirements
Executive Standard	IEC 62196 2017, IEC 61851 2017, SAE J1772,CHAdeMO etc.
Safety Parameters	Over Current, Over Voltage, Under Voltage, Residual Current, Surge Protection, Leakage Protection, Short Circuit, Over Temperature, etc.

The following is an introduction to DC charging piles:

1. Working principle

The working principle of a DC charging pile can be divided into three main parts: power module, charging control module and charging connection module.

1.1. Power module: It is the core component of a DC charging pile. Its main function is to convert the mains (AC power) into DC power suitable for charging electric vehicles. The power module is usually composed of a rectifier, a filter and a transformer. The rectifier converts AC power into DC power, the filter is used to filter out noise and interference in the power supply, and the transformer is used to adjust the voltage of the power supply to a voltage suitable for charging electric vehicles.

1.2. Charging control module: It is the intelligent part of the DC charging pile, which is responsible for monitoring and controlling the charging process. The charging control module is usually composed of a microprocessor and related circuits. The microprocessor obtains information about the electric vehicle through sensors, such as battery status, charging requirements, etc., and controls the output current and voltage of the charging pile based on this information to ensure the safety and efficiency of the charging process.

1.3. Charging connection module: It is the interface between the DC charging pile and the electric vehicle. It is responsible for transmitting DC power from the charging pile to the battery of the electric vehicle. The charging connection module usually consists of a plug, a socket and a connecting wire. The connection between the plug and the socket is achieved through a special plug-in mechanism, which can ensure the firmness and safety of the connection. The connecting wire is responsible for transmitting electrical energy, and usually uses high-voltage and high-current wires to meet the needs of fast charging.

2. Advantages

2.1. Fast charging speed: For consumers who are in urgent need of fast power replenishment, the DC charging pile can charge the electric vehicle to about 80% within 30 minutes, greatly improving the charging efficiency.

2.2. High-efficiency conversion: Since the power conversion process is completed in the charging pile, the energy transmission loss is reduced and the charging efficiency is improved.

2.3. High degree of intelligence: The DC charging pile is equipped with a more advanced control system and user interface, which can provide more charging management and payment functions.

3. Application scenarios

DC charging piles are usually installed in large charging stations, highway service areas and other places to provide electric vehicles with fast energy replenishment services. Specifically, the following scenarios are suitable for using DC charging piles:

3.1. Highway service areas: During long-distance travel, electric vehicles need to replenish a large amount of electricity in a short period of time.

3.2. Urban public parking lots: Fast charging can significantly reduce vehicle downtime and improve the overall operational efficiency of the fleet. It is suitable for taxi companies, express logistics fleets, corporate commuter vehicles, etc.

3.3. Large shopping malls and transportation hubs: These places have large traffic volumes and users have high requirements for charging time.

3.4. Industrial parks: Industrial equipment and transportation vehicles usually require higher power output.

Temporary large-scale event venues: Such as stadiums, convention and exhibition centers, music festivals, etc., participants may need emergency charging.

4. DC charging pile project display

Q1: Are you trading company or manufacturer?

A: We are a professional electric car charger manufacturer and source factory.

Q2: what is the lead time?

A: Usually, 15-20 working days to produce.

Q3: Can we ask you to print our logo into chargers? Can the color of the plug and wire be customized according to our requirements?

A: Yes. We support OEM/ODM production.

Q4: How about your product quality? What should I do if something goes wrong?

A: First of all, we sell our products for many years, and we have a professional engineering team in this field. Moreover, our products have been strictly inspected and repeatedly tested before leaving the factory, and the good and good rate of the varieties has reached 99.98%. Finally, we have service providers in some areas, please contact us for more information

Q5: What is your quality control system?

A: Complete all incoming material inspection, process inspection, and final inspection; 30 test procedures will be done before the goods leave the factory, and charging test videos will be sent; products have CE, ROHS, FCC, UL, KC certification.

Q6: Can I install the EV charger by myself?

A: Yes, but we suggest the user contact a professional electrician for installation to avoid potential safety hazards.

Q7：Why my charging power is lower than the specification?e?

A: Because during the charging session, a few factors will influence the output. Here is some potential reason:

①The BMS(Battery management system) of the car controls the charging session.

②The Max allowed current was set and limited through your APP.

For more details, please query us at sales@hjlcharger.com

Q8: How much time is required to fully charge my car using this charger?

A: The charging speed is determined by three factors working in conjunction: the On Board Charging (OBC) System, the maximum current allowed by the charging cable, and the EVSE. As an illustration, if the EV's maximum allowed power is 30KW and the battery capacity is 60KWh, it would take approximately 2 hours to charge the battery fully.

Q9: What is dynamic load balancing and why do I need that?

A: Dynamic load balancing is a technique that distributes the electrical load across multiple charging stations based on real-time demand. This helps prevent the electrical grid's overload and ensures that each charging station receives appropriate power.

Dynamic load balancing technology can help distribute the available power among multiple EV chargers in real-time, optimizing available power and reducing the risk of overloading the grid. This can help prevent power outages and reduce the need for costly grid upgrades.

Additionally, dynamic load Balancing can help reduce charging times and improve the overall charging experience for EV drivers, making it a valuable feature for both residential and commercial charging applications.