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EV Charger

AC charging point design suggestion

AC charging point design suggestion The following considerations should be considered when designing an AC charging point: 1. Charging power: current and voltage information. 2. Communication protocol 3. Protection level: Whether the angle between the cable of the charging pile and the pile body and the angle of the hanging ev plug conform to the drainage principle. 4. Dimensions: The outline dimensions of the ev plug fully conform to the latest national standard dimensions. 5. The charging ev plug homing structure. 6. If there is no one to guard, the ev plug homing detection and ev plug locking device should also be considered, and cannot be touched at will. 7. The service life of the cable. 8. Whether the material of the ev plug can be used outdoors. 9. The outer diameter of the charging cable. From the above precautions, we see that the material of the AC EV plug is required to be used outdoors, then the material is required to have the following characteristics: weather resis

The difference between AC slow charging and DC fast charging of EV charger

The difference between AC slow charging and DC fast charging of EV charger The slow-charging EV charger transmits alternating current to the car, and the fast-charging charging point transmits direct current to the car. Whether it is AC charging or DC charging, the AC power needs to be converted into DC power through the rectifier device. The conversion of fast charging is completed in the charging pile, and the slow charging is completed in the rectifier of the car, so the volume of the charging pile for fast charging will be relatively large. And their EV connectors are different. 1. AC slow charging AC slow charging uses a small current to charge the battery of an electric vehicle for a longer period of time. Generally, the constant current three-stage charging with small current is used, and the general charging time is 5-10 hours. Disadvantages: long charging time, it is difficult to meet the emergency charging of the vehicle, especially on long journeys. Advantages: The cost of

Why does the capacity of lithium batteries decrease in low-temperature environments?

Why does the capacity of lithium batteries decrease in low-temperature environments? According to reports, the discharge capacity of lithium-ion batteries at -20 ℃ is only about 31.5% of that at room temperature. The working temperature of traditional lithium batteries is between -20~+55 ℃. Among numerous environmental factors, temperature has the greatest impact on the performance of lithium batteries. The electrolyte used in lithium batteries, as an organic liquid, like grease, can become viscous or even coagulate at low temperatures. At this point, the activity of conductive lithium salts inside is greatly restricted, resulting in low charging efficiency, which can lead to slow charging, insufficient charging, and discharge of lithium batteries at low temperatures.Lithium batteries are limited in their use in low-temperature environments, as their discharge capacity may severely decline and they cannot be charged at low temperatures. During low-temperature charging, the insertion o

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