The electric 7KW charging pile is mainly composed of the following parts:
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1. Power module: The internally installed power module is mainly used to convert the input mains current (AC) into a small current (DC) to provide energy for subsequent modules.
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2. Charging module: The charging module is equipped with a charging movement and a charging management module. The charging movement is a charger composed of a number of charging modules, and different charging modules can provide a variety of voltages and currents for electric vehicles. The charge management module is used to manage and control the charger.
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3. Communication module: The communication module is mainly used to receive the information of electric vehicles and issue charging instructions. There are generally two types of communication, wired and wireless. Wired communication is generally carried out through the CAN bus or RS485 protocol. Wireless communication can be achieved through Bluetooth, Zigbee, WIFI and other ways.
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4. Control module: The control module is mainly responsible for the control and management of the entire charging pile, including control charger, protection of electric vehicles, data processing and so on.
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In general, the electric 7KW charging pile is mainly composed of power supply, charging, communication and control of these main modules, different modules interact and work together to achieve efficient charging of electric vehicles.
The AC power is turned down by the transformer, converted into DC power through the rectifier circuit, and then the voltage and current are adjusted by the control chip, and finally the output is charged to the electric vehicle.
In this process, there are multiple protection designs inside the charging pile, which can ensure the safety of the electric vehicle and the charging pile.
If you need more detailed understanding, you can also further understand from the following perspectives: 1. Transformer design principle and influence on power supply; 2. The construction and working principle of the rectifier circuit; 3. Selection and adjustment principle of control chip; 4. Concrete realization of multiple protection design.
Based on AC synchronous frequency conversion technology, the power is input into the controller through the power cable, after the controller processing, and then through the DC filter, AC-DC converter and other sub-system adjustment, the output of AC charging electric energy, and finally through the socket output to the electric vehicle charging.
This technology can achieve efficient and stable charging, and can adapt to a variety of electric vehicle charging needs, has been widely used. At the same time, the electric 7kw charging pile also uses a number of technologies, such as intelligent digital control, high reliability design, multiple protection, etc., to ensure that the charging is safe, reliable, convenient and other characteristics, which has been widely trusted and recognized by users.
The resonant circuit based on high power module IGBT control and equipped with high precision energy meter can charge electric vehicles efficiently and safely.
The charging pile adopts V2G technology, which can realize two-way information transmission and power dispatching for vehicles.
The internal circuit board is also equipped with a variety of protection measures and communication modules, which can automatically handle fault and alarm information to ensure the stability and safety of charging.
At the same time, the electric 7kw charging pile also has a heat dissipation function, which can effectively cool the electronic equipment inside the charging pile to ensure that it works reliably for a long time.
It is the use of AC power to convert into DC power, through the transformer buck after rectification and filtering into the charger for charging.
Among them, the transformer is used to reduce the AC power supply voltage, the rectifier circuit converts the AC to direct current, and the filter circuit removes the pulsation in the direct current, making the output current more stable.
In the charging process, it is also necessary to carry out battery management, temperature management and other control schemes according to the existing state of the battery to ensure the charging effect and safety. The internal principle of Yidian 7kw charging pile is a typical power conversion application, which involves many fields such as electronic circuit design, battery management, and control algorithms.
Principle: The 7kW DC charging pile is a direct output of direct current by the charging pile, and the electricity is directly input into the battery in the car through the charging gun, without the conversion of the car charger. It's like putting the car charger on the outside.
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If your 7kW DC charging pile output power is 7kW, then you can be equivalent to about 7 degrees of electricity per hour in the rechargeable battery, compared to the AC charging pile speed is a little bit faster. However, relative to the 7\/8 hours of charging time, the two charging times are relatively close.
The principle of 7Kw card induction charging is to use a dedicated charging interface to provide AC power for electric vehicles with on-board chargers, using the principle of conduction mode.