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type1 type2 GB/T EV charging plugs difference

  EV Charging plug  interface standards are roughly divided into 3  categories: one is the American standard, the other is the European standard   and GB/T . According to the charging technology, they are  divided into direct current charging (DC) standard and alternating current charging (AC) standard. DC plugs  are high-current, high-power charging EV connectors . They are generally equipped in fast-charging stations for new energy vehicles. They have high voltage and fast charging speed.  AC charging plugs are used for home or portable charging ,which charging speed is relatively slow.   1. AC charger There are three main types, type1, type2 and GB/T, which can also be called American standard, European standard and China national standard. Of course, Tesla has its own standard charging connectors , but due to pressure, Tesla also began to change its standards according to market conditions to make its cars more suitable for the market.   ①Type1:SAE J1772 Basically, the United State

The difference between constant current charging and constant voltage current limiting charging

 The difference between constant current charging and constant voltage current limiting charging 1. The principle of constant voltage and current limiting charging and the current calculation method Constant voltage and current limited charging is a way of charging by regulating the voltage and limiting the charging current. When the battery voltage is insufficient, the charger charges with constant current to achieve a fast charging effect; when the battery voltage reaches the set value, the charger automatically adjusts to constant voltage to keep the battery voltage from exceeding the set value. At this time, the charger will limit the charging current to avoid overcharging. Therefore, constant voltage and current-limiting chargers need a calculation formula to calculate the relationship between the charger input voltage and the required output current. Calculated as follows: Charging current I = rated output current of the charger * rated capacity of the battery / remaining capacit

The composition of EV charging plug

 The composition of EV charging plug The  EV charging plug is a device that connects the power supply to the battery when charging an electric vehicle. Its main components include: 1. Plug: used to connect input and output cables, responsible for transmitting electrical energy. There are terminals in the plug. 2. Insulated handle: used to hold the handle of the charging gun to protect fingers from the risk of electric shock. 3. Locking mechanism: Fix the charging gun on the electric vehicle battery charging interface. 4. Cable: A wire used to transmit electrical energy and a sheath to protect the wire. 5. Safety device: prevent overload and short circuit to ensure safety. 8. Control circuit: Processes the power input, output and electric vehicle battery signals, and controls the charging process. 9. Shell: Protects the internal components of the charging gun from being exposed to the external environment.