Customized Anti-Salt Corrosion Smart Floor Fan Motor for Coastal Households in Colombia

Background:
In 2018, a Colombian home appliance brand sought help from Chinese motor manufacturer Pengfei Electric—floor fans supplied to Caribbean coastal households had collectively "failed" after just three months of operation. The local high-temperature, high-salinity environment (annual humidity of 85%, air salt mist concentration 30 times higher than inland) caused motor winding corrosion, plastic component embrittlement, and even multiple short-circuit incidents with smoke.

Key Challenges Identified:
Using corrosion monitoring data from environmental engineering labs, both parties identified three core challenges:

Salt Mist Siege: Motors must pass the ASTM B117 salt spray test for 2,000 hours (vs. the standard 500 hours for household appliance motors).

Energy Efficiency Imperative: Meet Colombia’s energy-saving requirements.

Surface Temperature Limit: Motor surface temperature must remain ≤40°C during operation.

Technological Breakthroughs:

Molecular-Level Protection:

Marine-grade housing + nanocrystalline coating reduced salt mist corrosion rate to 0.003 mm/year.

Thermal Management:

3D cooling air ducts + phase-change heat storage materials kept the housing temperature 11°C lower than competitors after 8 hours of continuous operation.

Performance Leap:

After 5 years of accelerated aging simulation in salt mist labs, motor efficiency retained 98.2% of initial performance.

Standby power consumption of 0.08W, saving households an average of $100 annually in electricity costs.

Surface temperature stabilized at 38.5°C.

Social Impact:
The product sparked a buying frenzy, with the first 10,000 units selling out in 7 days. Lucia, a homemaker, shared on social media: "This fan keeps my handmade rug free of rust stains. When my kids dance around it, I no longer have to worry!"