Under the global trend of carbon neutrality and increasingly strict energy regulations, EV charging infrastructure is shifting from basic deployment to a stage that demands higher reliability and efficiency.

In this transition, a previously overlooked yet critical component is gaining attention — the cooling fan.

This case study comes from China Chungfo fan, serving an EV charging equipment manufacturer (Company Z). Their products are deployed in outdoor environments, facing multiple operational challenges.

1. Project Background: Three Key Challenges

During product development, Company Z identified three major requirements:

High Durability

Outdoor installations require strong resistance to water, humidity, and dust.

A waterproof cooling fan is essential.

High Reliability

Overheating shutdowns directly affect user experience and operational stability.

Low Power Consumption

As green energy infrastructure, minimizing energy usage is critical, especially in long-term operation.

2. Limitations of Traditional AC Fans

The original AC fan solution showed several issues:

High power consumption

Limited outdoor lifespan

Increased maintenance frequency and hidden costs

3. Solution: DC Cooling Fan Upgrade by Chungfo

Guangdong Chungfo proposed a system-level optimization:

Replace traditional AC fans with DC cooling fans and redesign the thermal system

The solution integrates energy-efficient cooling fans with optimized structure for outdoor conditions.

4. Key Technical Advantages

Waterproof Design

Ensures stable operation under rain and high humidity.

High Efficiency with DC Drive

Significantly reduces power consumption compared to AC fans.

Long Lifespan

Optimized design extends service life and reduces maintenance.

5. Results and Benefits

After several months of validation, Company Z achieved:

Up to ~70% reduction in fan power consumption

Significantly extended lifespan

Improved overall system efficiency

Key benefits include:

Lower long-term energy costs

Reduced maintenance frequency

Enhanced outdoor reliability

6. Key Takeaway

This case demonstrates that in EV charging systems:

Cooling fans are no longer simple components but critical system-level decisions.

For applications requiring:

Reliability

Energy efficiency

Long lifespan

Outdoor adaptability

Choosing the right solution—such as Chungfo’s DC waterproof cooling fans—plays a decisive role in product competitiveness.