Copper blade for fast fuse: Solve overheating in China's EV chargers

China's EV charger market is booming, with over 6.5 million public chargers installed by 2023 (data from China EV Charging Association). However, overheating in fast chargers has become a major safety concern, as reported by Sina News. Copper blade for fast fuse is a key component that addresses this issue. It is a copper conductor designed for fast fuses, combining high conductivity with quick response. This article will explain how it solves overheating problems, its core advantages, applications, and introduce Xiamen APOLLO's products.

 

 

1. Pure Copper Material Ensures Low Resistance

Made of 99.95% pure copper, this component minimizes resistance. Lower resistance means less heat is generated during high-current charging, a critical factor for China's 60kW+ fast chargers.

 

2. Optimized Design Enhances Current Flow

The blade's flat, wide structure allows more current to pass through without congestion. This design reduces energy loss, which is vital for China's new 10-minute ultra-fast charging stations.

 

3. Blade fuse terminal Integration Improves Efficiency

When paired with high-quality blade fuse terminal, the connection resistance drops by 30% compared to traditional designs. This integration is now standard in many Chinese charger brands.

 

 

1. The thin, flat shape of blade contact increases surface area, allowing heat to dissipate faster. This is crucial for chargers operating in China's hot southern regions during summer.

 

2. Special heat-treated copper enhances thermal conductivity by 15%. This modification helps chargers handle continuous use during China's EV travel peaks, like the Spring Festival.

 

3. The component's design includes small ventilation gaps that work with charger cooling systems. This feature is recommended by China's EV Charger Safety Guidelines (2023 edition).

 

4. Fuse blade contact with nickel plating resists oxidation, ensuring consistent heat transfer over time. This solves the common overheating issue in older Chinese chargers.

 

 

1. Rapid Melting Point Control

The copper blade's specific thickness (0.3-0.5mm) ensures it melts at precise current levels. This prevents excessive current that causes overheating, as required by China's GB/T 18487.1 standard.

 

2. Blade-type fuse contact Enhances Sensitivity

The blade-type fuse contact design allows faster reaction to current spikes. Tests show it responds 20% quicker than traditional fuses, critical for China's 800V high-voltage charging systems.

 

3. Stable Performance in Fluctuating Conditions

It maintains consistent performance even with voltage fluctuations common in China's rural areas. This stability prevents unnecessary overheating during unstable power supply.

 

 

This copper blade is widely used in China's fast charging stations, especially in 480kW ultra-fast chargers deployed by State Grid. It's also essential in portable EV chargers popular in China's urban communities. In addition, blade contact variants are used in battery swap stations operated by NIO and other Chinese EV makers. Many domestic charger manufacturers, including Star Charge and TELD, have adopted this component to meet China's strict safety standards.

 

 

Xiamen APOLLO produces high-quality copper blade for fast fuse specifically designed for China's EV charging market. Our blades use 99.99% pure copper with precision machining to ensure optimal conductivity and heat dissipation. We offer various models, including those compatible with blade-type fuse contact and standard fuse blade contact designs.

 

Our products meet China's GB standards and have IS09001-2015 certification. We provide fast delivery across China: 3-5 days for domestic orders via land transport, with sea and air options for export. Custom services are available, such as special thicknesses for specific charger models or anti-corrosion coatings for coastal areas. At Xiamen APOLLO, we understand China's unique EV charging needs and deliver reliable components that solve overheating issues in the nation's growing charger network.