The frequency and methods of daily cleaning of electric vehicle chargers

The daily cleaning of electric vehicle chargers is an important link to ensure charging safety and extend the lifespan of the equipment. The following is a detailed explanation from three aspects: cleaning frequency, methods and precautions:

First, cleaning frequency

Daily light cleaning

Frequency: After each use or once a week (adjusted according to the usage environment).

Applicable scenarios: Remove surface dust and stains to prevent poor contact or heat dissipation problems caused by long-term accumulation.

Deep cleaning

Frequency: Once every quarter (or adjusted according to the usage environment; for dusty and humid environments, the cycle needs to be shortened).

Applicable scenarios: Thoroughly clean the accumulated dust inside, check the wear of the interface, and ensure the stable performance of the equipment.

Second, cleaning methods

1. External cleaning

Tools: Dry cloth, slightly damp soft cloth (avoid dripping), neutral detergent (such as mild soapy water).

Step:

Power failure: Ensure that the charger is completely powered off to avoid the risk of electric shock.

Surface dust removal: Use a dry cloth or soft brush to remove dust and debris (such as the gap between the charging gun tip).

Stain cleaning: Use a slightly damp soft cloth dipped in neutral detergent to wipe the surface oil stains or stubborn stains, and prevent the liquid from seeping into the interface.

Drying treatment: Wipe off the moisture with a dry cloth to ensure the equipment is completely dry before powering on.

2. Interface cleaning

Tools: Dry compressed air tank, special cleaning cotton swabs (no lint), isopropyl alcohol (70% concentration).

Step:

Power off and unplug the charging gun: Ensure operational safety.

Blow away dust: Use a compressed air tank to blow away the dust inside the charging interface (keep a distance of more than 10cm to avoid damage from high-pressure air flow).

Wipe the contacts: Use a cotton swab dipped in a small amount of isopropyl alcohol to gently wipe the interface contacts to remove the oxide layer or stains.

Check for wear: Observe whether the contacts are deformed or eroded. If any abnormality is found, replace them in time.

3. Cleaning of heat dissipation components

Tools: Soft-bristled brush, vacuum cleaner (with thin nozzle accessory).

Step:

Clean the heat dissipation holes: Use a soft brush or vacuum cleaner to remove the dust from the heat dissipation holes to prevent blockage and overheating.

Check the fan: If the charger has a built-in fan, the dust accumulated on the fan blades needs to be cleaned regularly (operated by professionals).

Third, precautions

Avoid liquid infiltration

When cleaning, it is strictly forbidden to directly rinse or soak the charger with water to prevent short circuits in the internal circuit.

Corrosive cleaning agents are prohibited

Avoid using cleaning agents with excessive alcohol concentration (>75%), ammonia or chlorine to prevent damage to the casing or contacts.

Check the cables regularly

When cleaning, check if the outer sheath of the charging cable is damaged and if the joints are loose. Replace it in time if any problems are found.

Professional maintenance

For deep cleaning or troubleshooting, it is recommended to contact professionals to avoid self-disassembly, which may lead to the expiration of the warranty or potential safety hazards.

Fourth, Summary

High-frequency usage scenarios (such as logistics parks, public charging stations) : It is recommended to clean the surface weekly and inspect the interfaces monthly.

Low-frequency usage scenarios (such as home charging piles) : A deep cleaning once every quarter is sufficient.

Core principle: Safety first. Cut off the power before cleaning. Tools should be used exclusively to avoid damage. Regular inspection to prevent malfunctions.

Through scientific and reasonable cleaning and maintenance, the failure rate of chargers can be effectively reduced, ensuring charging efficiency and safety.