With the accelerated transformation of the global automotive industry towards new energy,the number of
electric vehicles has shown explosive growth.
Driven by the dual pressures of environmental protection and energy crisis,governments around the world have introduced a series
of policies to support the development of electric vehicles.
According to data from the International Energy Agency (IEA),global sales of electric vehicles have been increasing at an average
annual rate of over 30% in recent years.
The industrial and commercial sector has become an important frontier for the application of electric vehicles due to its
concentrated vehicle usage scenarios and fixed operating locations.
1、 Technical principles
（1） Charging Methods and Fundamentals of Power Conversion
Industrial and commercial charging stations mainly use two methods: AC charging and DC charging:
AC charging is the process of converting AC power from the power grid into DC power through rectifiers inside charging stations,
which is then used to charge electric vehicle batteries.
Its power is generally relatively low,suitable for scenarios with ample charging time,such as parking and charging at night.
Taking a common AC charging station as an example,its output voltage is generally 220V or 380V,and the current can be adjusted between
16A and 32A depending on the power.
The charging power is usually around 3.3kW to 21kW.
DC charging directly converts AC power from the power grid into DC power to charge electric vehicle batteries,without the need for
a secondary conversion by a car charger.Therefore,it has a faster charging speed and is suitable for scenarios that require high charging time,
such as public fast charging stations, logistics parks, etc.
The output voltage range of DC charging stations is relatively wide,generally between 200V and 750V,with currents up to several hundred amperes and
power ranging from 30kW to 360kW or even higher.For example,some high-speed service areas have ultra fast charging stations with a power of up
to 360kW, which can replenish a large amount of electricity for electric vehicles in a short period of time, significantly reducing charging time.
（2） Core components and intelligent control
Whether it is an AC or DC charging station, its core components include power conversion module,control module,communication
module,and metering module.The power conversion module is responsible for the conversion and regulation of electricity,
and is a key component in achieving the charging function;The control module is like the "brain" of a charging station,responsible for monitoring
and managing the entire charging process.
It dynamically adjusts the charging current and voltage based on the battery's status (such as battery level, temperature, voltage, etc.) to ensure
the safety and efficiency of the charging process;The communication module enables information exchange between charging stations, electric vehicles,
and backend management systems for remote monitoring,fault diagnosis,charging scheduling, and other operations;
The metering module accurately records the amount of charged electricity,providing a basis for electricity bill settlement.
In addition, with the development of IoT,big data,and artificial intelligence technologies, commercial and industrial charging piles are
constantly evolving towards intelligence. Intelligent charging stations can collect various data during the charging process in real time
through sensors and upload it to the cloud for analysis and processing.
2、 Implementation process
(1) Project planning and preliminary preparation
In the initial stage of implementing the industrial and commercial charging pile project,comprehensive project planning and preliminary
preparation work need to be carried out first. This includes a detailed survey and evaluation of the construction site, determining the number,type
(AC or DC), power, and layout plan of charging stations. For example, when planning a charging station project for a commercial complex parking lot,factors
such as the area of the parking lot, the number and distribution of parking spaces,the power supply capacity and route direction,surrounding traffic flow,
and user demand forecasting need to be considered.
At the same time,it is necessary to communicate and negotiate with the site's affiliated units (such as property management companies,mall managers,
etc.),sign relevant cooperation agreements, clarify the rights and obligations of both parties,including site leasing,electricity bill settlement methods,
equipment maintenance responsibilities,etc.
In addition,power capacity expansion application and approval work need to be carried out in the early stage of the project.
Due to the high demand for electricity from industrial and commercial charging stations,especially DC fast charging stations,it is often necessary to
separately apply for high-voltage power access. This process involves submitting detailed power demand reports,project planning schemes,and relevant
technical information to the local power supply department, waiting for their review and approval.
In the process of applying for power capacity expansion, it is necessary to closely cooperate with the power supply department,optimize and adjust the
project plan according to their requirements, and ensure the safety and stability of power supply.
(2) Equipment procurement, installation and commissioning
After completing project planning and preliminary preparation work, enter the equipment procurement and installation debugging
phase. Select a suitable charging station equipment supplier for procurement based on project requirements.
When choosing a supplier, it is necessary to comprehensively consider factors such as product quality,technical performance,price,and after-sales
service. For example,priority should be given to suppliers with rich industry experience, products that have passed relevant certifications
(such as CQC, CE, etc.), and can provide long-term stable after-sales service.
The purchased equipment includes charging station hosts,charging guns,cables,distribution cabinets,communication equipment,and related ancillary facilities.
After the equipment procurement is completed,organize a professional installation team to carry out the installation work of charging piles.
The installation process strictly follows the relevant electrical installation specifications and equipment installation instructions to ensure
that the equipment is installed firmly, wired correctly, and has good electrical insulation performance.
When installing DC fast charging piles,due to their high power,higher requirements are placed on cable specifications and connection processes.
Special attention should be paid to cable heat dissipation to avoid safety accidents caused by cable overheating.
After installation,conduct comprehensive debugging work,including equipment power on testing,charging function testing,communication function testing,
and safety performance testing.
Through debugging,ensure that all functions of the charging station are normal and can operate stably and reliably.
(3) Operations Management and Maintenance
After the completion and operation of the industrial and commercial charging pile project,operation management and maintenance work are crucial.
In terms of operational management, it is necessary to first establish a comprehensive fee management system, formulate reasonable fee standards based
on local electricity pricing policies, market conditions, and operating costs,and provide multiple payment methods such as QR code payment,card payment,
APP payment, etc., to facilitate user payment. At the same time,establish a user management platform to register and manage user information,
achieve functions such as charging reservation,user feedback, and point rewards, and enhance user experience.
3、Applicable scenarios
(1) Logistics parks and freight stations
Logistics parks and freight stations are densely used areas for industrial and commercial electric vehicles,with a large number of logistics distribution vehicles,
freight trucks, etc. requiring frequent charging to maintain operation.
This is suitable for installing high-power DC fast charging piles to meet the needs of fast charging and fast turnover of vehicles.
(2) Industrial parks and factory areas
There are usually a large number of electric vehicles such as enterprise official vehicles,employee commuting vehicles, and production transportation
vehicles in industrial parks and factory areas. According to the needs of different enterprises and factory layouts, AC charging piles and DC fast charging piles
can be flexibly configured. For vehicles with fixed parking spaces and flexible charging times (such as employee commuter cars), AC charging stations can be
installed to use low electricity prices at night for charging,reducing charging costs; For production and transportation vehicles or official vehicles that require
rapid replenishment of electrical energy in emergency situations, a certain number of DC fast charging piles can be equipped.
(3) Commercial complexes and office buildings
Commercial complexes and office parking lots are important places to provide electric vehicle charging services for consumers,visitors,and employees.
There is a large flow of people, long vehicle stays, and diverse charging needs here,so it is usually necessary to equip both AC charging stations
and DC fast charging stations at the same time. AC charging stations can meet the charging needs of vehicles parked for long periods of time
(such as shopping or office periods), while DC fast charging stations provide fast charging services for users with urgent charging needs.
(4) Hotels and tourist attractions
In order to meet the electric vehicle charging needs of guests and tourists, improve service quality and image, hotels and tourist attractions also need
to build charging pile facilities. In the hotel parking lot, an appropriate number of AC charging stations and some DC fast charging stations can be configured
according to the number of guest rooms and the expected number of vehicles parked, making it convenient for guests to charge their vehicles during their stay.
Tourist parking lots can set up charging stations near the main parking lots and scenic spots based on the flow of tourists and vehicle traffic to meet the
charging needs of tourists during the tour.
4、Product series
（1） DC charging pile series
Integrated DC charging station
The QLDCS series integrated DC charging station integrates power conversion, charging control, human-computer interaction control,
communication, billing and metering, and is used for fast DC charging of electric vehicles.
This product is installed outdoors and has waterproof and dustproof design, with a protection level of IP54.
The power conversion unit for DC charging adopts a modular design principle, and its output power and output voltage level
can be flexibly configured according to user needs.
5、 Product Display
First series: [DC charging station]
Product Introduction 1
Outdoor integrated dual gun DC charging station
This product mainly consists of a charging power module, a monitor, an electricity meter, a card reader, a human-computer interaction interface,
a communication module and charging interface, an actuator, and an outdoor cabinet.
It adopts a modular design and has the characteristics of easy installation, debugging, simple operation and maintenance.
Charging has multiple protection functions, and the connection status of the charging cable can be monitored in real time during charging.
If the connection is abnormal, charging will be terminated immediately to ensure the safety of people and vehicles during the charging process.
Humanized interface display and control guidance function,allowing customers to easily and safely complete the charging process.
The product design provides multiple communication interfaces such as CAN, Ethernet,GPRS, etc. for external communication,real-time communication
with the monitoring center and operation management center, and real-time monitoring of charging status.
Outdoor integrated dual gun DC charging stationTechnical Parameter
Product Introduction 2
Split type DC charging station
The QLDCS series split type DC charging station is installed outdoors and is equipped with waterproof and dustproof design,with a protection level of IP54.
This product assembles the AC distribution unit, lightning protection unit, charging unit, monitoring unit, bottom data acquisition unit, metering unit,
and DC output unit into a separate cabinet;The split DC charging pile adopts modular design; The two are connected together through cables.
The output power and output voltage level of the product can be flexibly configured according to user needs.
This product has the characteristics of easy installation and debugging, simple operation and maintenance,and is an ideal choice for outdoor
DC fast charging of electric vehicles.
Product composition
The DC split cabinet mainly consists of a charging power module, an AC/DC detection unit monitoring unit,an electricity meter,a communication module
and actuator, and an outdoor cabinet. The various monitoring units in the system are managed and controlled by the main monitoring,and
the information collected by the underlying units and the charging machine monitoring unit are transmitted to the charging machine monitoring
through RS485 communication lines via CAN bus and communication with the charging pile and battery BMS. The motor information is transmitted
to the charging machine monitoring.
Communicate with the backend through a protocol converter. The DC charging station mainly consists of a card reader,
human-machine interface,control module and charging interface, actuator, and outdoor cabinet.
Technical Parameter
Product Introduction 3
Wall mounted DC charging station
The QLDCS series wall mounted DC charging station integrates power conversion, charging control, human-computer interaction control,
communication,billing and metering, and is used for fast DC charging of electric vehicles.
This product is installed outdoors and features waterproof and dustproof design, with a protection level of IP54.
The power conversion unit of the wall mounted DC charging pile adopts modular design principles,and its output power and output voltage level
can be flexibly configured according to user needs.
Product composition
All products use split modules for more efficient and fast charging:
Ultra wide output voltage range: 200vdc~750vdC, suitable for various vehicle models; Strong charging ability and fast speed; Ultra low noise,
enhancing user charging experience; Low voltage area current does not retract,charging speed is faster;
30KW wall mounted DC charger
Technical Parameter
Product features:
1. Adopting a non-contact card swiping device and implementing hardware encryption authentication processing on the card
to ensure the security of card account data;
2. The charging equipment adopts multiple high-frequency switch power supply modules connected in parallel for backup
operation, forming a high-power charging system. The uneven current between modules is ≤ 5%, which has the characteristics
of high reliability and easy maintenance;
3. The power module can use LLC resonance technology to improve power efficiency,and the efficiency of the entire charging
system can reach over 95%;
4. Segmented constant power design allows for a wide range of output voltage and current settings, significantly improving
charging speed. Fast and slow charging can be freely selected;
5. The power module comes with a standard isolated CAN communication port to communicate with the monitor;
6. The charging system is equipped with an independent monitor that exchanges information with the human-machine
interface and upper computer to monitor the operation of the system;
7. The human-computer interaction interface adopts high-performance ARM chips and a 7-inch true color touch screen,
with a user-friendly design that is easy to operate and convenient. The charging station monitor runs according to the given
parameters of the battery inspection BMS through CAN bus and battery management unit (BMS) or vehicle instrument
connection, and sets different charging operation modes to achieve fast charging;
8. The system design has comprehensive protection functions,such as AC overvoltage/undervoltage protection,
AC leakage protection, DC output overcurrent/undervoltage protection, output current limiting/overcurrent protection,
over temperature protection, battery reverse connection protection,etc;
9. The operation panel is made of PC one-time molding, which is beautiful, generous, and durable.
Product Features:
Basic functions:
Charging interface,protection module,control module,metering module.
The DC charging all-in-one machine includes a charging power module,power supply interface,card reading module,monitoring unit,
human-machine operation interface,and cabinet.
Backend communication interface:
RS485 (configurable CAN port),GPRS and other industrial Ethernet ports,
Charging function:
It has automatic and manual charging functions;The charger should be able to dynamically adjust the constant current and constant voltage modes
according to the BMS charging voltage and current limits;
Equipped with reminder and alarm functions when the charging gun returns to the insertion position after charging
is completed; Equipped with two guns for alternating charging, automatic switching between fast/slow charging modes,
and a wide range of adjustable charging currents.
Signal detection requires water:
Output detection,IC card detection, input information detection such as switch quantity,operation status detection, and fault detection
Human computer interaction function:
Can manually select service type and control,output display
Safety protection functions:
AC input overvoltage/undervoltage protection,DC output overvoltage/undervoltage protection,setting DC output voltage/current limit values,
overvoltage/overcurrent protection, short circuit protection, AC lightning protection,overheating protection,battery reverse connection,voltage
and current limiting protection, and other protection functions.
Emergency stop function, abnormal charging connection protection, insulation detection protection.
Charging interface:
One machine,one gun;One machine,two guns (charging interface meets national standards)
Product advantages
Efficient and low harmonic,Class A quality system efficiency>95%, industry-leading power density, low equipment energy
consumption,and high energy utilization efficiency.
The charging power module adopts active power factor correction technology,with harmonic interference<5% and a power factor of up to 0.99,
which meets the requirements of A-level equipment of the State Grid; Humanized product layout, modular design, and reliable system.
The system adopts a multi module parallel output mode,which is flexible in configuration and easy to maintain.
Single module failure does not affect the overall operation of the system,greatly improving system reliability and stability;
Comprehensive protection and safe operation.
It has multiple protection functions such as input/output/component self check and operation connection protection,input over/under voltage protection,
DC output over module overheating/fault protection,insulation protection, charging and battery connection inspection, etc.
It also has voltage/short circuit protection,adjustable capacity, and can adapt to various needs.
Application area
Suitable for fast or medium speed charging of pure electric cars, pure electric taxis, and pure electric buses:
suitable for operating places such as pure electric buses, charging stations, and enterprise dedicated parking lots.
Series 1: [AC Charging Station]
Product Introduction 1
14-84KW single/double gun vertical AC charging station
Vertical single/double gun AC charging station is an industrial product specifically designed for charging electric vehicles.
This product can be installed indoors or outdoors, with professional waterproof and dustproof design, and a protection level of IP54.
This product has functions such as human-computer interaction and billing, and can be started in three ways:
plug and play charging, card swiping activation, and card swiping billing.Adopting modular design,it has the advantages
of simple installation,easy upgrade and maintenance.
Product Features
Adopting ARM chips with high stability and performance,coupled with powerful system resources,makes this product more stable and reliable;
The display interface is a 4.3-inch LED LCD screen with rich information,high-resolution display of clear and rich content,and beautiful interface;
Equipped with comprehensive protection functions:
overvoltage and undervoltage protection, AC input and output overcurrent protection, output current limiting,
overcurrent protection,over temperature protection, D-level lightning protection, etc; The chassis is made of sheet metal, which is durable and long-lasting;
The overall structure adopts a rainproof and dust-proof design,with a protection level of IP54, meeting the requirements for outdoor operation.
System parameter
Product Introduction 1
-42KW aluminum alloy shell AC charging station
Aluminum alloy shell AC charging station is an industrial product specifically designed for charging electric vehicles.
This product can be installed indoors or outdoors, with professional waterproof and dustproof design,and a protection level of IP55.
This product has human-computer interaction,billing and other functions.
Ethernet and 4G communication schemes can be selected, and WeChat/Alipay/APP code scanning and card swiping billing are available.
Adopting modular design,it has the advantages of simple installation,easy upgrade and maintenance.
Product Features
1. Adopting a non-contact card swiping device and implementing hardware encryption authentication processing on
the card to ensure the security of card account data;
2. The human-computer interaction interface adopts high-performance ARM chips and a 7-inch true color touch screen
with humanized design, simple operation, and convenience;
3. Save charging records and blacklist data locally; And ensure the integrity and correctness of the data;
4. The charging control system has remote and local upgrade functions;
5. Provide Ethernet ports, CAN, RS485, RS232, USB, 3G/4G (China Mobile, China Unicom,China Telecom) modules,Bluetooth modules.
6. GPS (also supports Beidou) positioning module and GPS (also supports Beidou) positioning block function;
7. Aluminum alloy die-casting shell, operation panel made of tempered glass, beautiful and durable.
6、Featured Services
（1） Customized solutions
The company provides customized charging station solutions tailored to the unique needs of different industrial and commercial customers.
In the early stage of the project, the company's professional market research team conducted in-depth research and analysis on the customer's site conditions,
power supply, vehicle usage, operation management mode,and future development plans.Based on the research results,we will tailor a personalized
charging pile construction plan for our clients, including the selection of charging pile types (AC or DC, power size),quantity determination,
layout design,installation method, power matching scheme, and operation management mode suggestions.
（2） One stop service
The company provides one-stop services for industrial and commercial charging pile projects, including project planning, equipment procurement,
installation and commissioning, and operation management. During the project planning phase,the company's professional team assists clients
in project site selection, feasibility studies, project budget preparation,and other related tasks to ensure the scientific and rational nature of the project;
In the equipment procurement process,relying on the company's long-term cooperative relationships with numerous well-known charging pile
equipment manufacturers,we provide customers with high-quality, reliable, and cost-effective equipment selection suggestions,and are responsible
for the procurement, transportation, and acceptance of equipment to ensure timely and high-quality delivery;
During the installation and debugging phase,the company organizes an experienced installation team to strictly follow relevant standards and
specifications for construction and installation. After the installation is completed,comprehensive and detailed debugging work is carried out to ensure
that the charging station equipment can operate normally and stably; In terms of operation management,the company provides deployment
and training services for intelligent charging management systems to help customers establish sound operation management processes and systems.
At the same time, it can also provide operation hosting services according to customer needs.
The company's professional operation team is responsible for the daily operation and management of charging piles,including equipment maintenance,
user service,fee management, etc.Customers only need to focus on overall operational efficiency.
The one-stop service model greatly simplifies the project implementation process for customers,reduces project management costs and risks,
and improves project implementation efficiency and quality.
（3） 24-hour emergency response and technical support
The company has established a comprehensive 24-hour emergency response and technical support service system to ensure timely resolution
in case of charging station equipment failure or user issues. The company has set up a dedicated customer service hotline,and users can call the
customer service hotline at any time for consultation, repair or complaint.
After receiving user feedback,the customer service center will immediately record the relevant information and f<
