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What Causes the Buzzing Sound During New Energy Vehicle Charging?

1 Answers

KendraMarie

07/30/25 4:41am

New energy vehicle charging buzzing sound reasons are as follows: Dust accumulation in charging system: Over time, dust accumulation in the charging system can also produce louder sounds. During charging, new energy vehicles generate static electricity, which attracts environmental dust to the charging system, leading to poor heat dissipation. This causes the temperature to spike immediately when the charging gun is plugged in, forcing the fan to operate at maximum speed continuously. Heat from current-voltage conversion components: The heat generated by current-voltage conversion components triggers the cooling fan of the electronic control system, which is a normal phenomenon. If the ambient temperature is low with good heat dissipation, the fan may not start or operate at low speed. However, if the temperature exceeds 40 degrees, the fan will start running, and if it exceeds 50 degrees, the fan will operate at high speed, producing a noticeable buzzing sound that the owner can hear.

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