With the rapid development of smart home appliances, the microwave-steam-oven combo has become a centerpiece in modern kitchens. Its performance is no longer only about cooking functions, but also heavily relies on thermal management and internal cooling systems. Especially under high temperatures and prolonged operation, ensuring the stability of electronic components and heating modules is critical for both safety and product longevity.

Recently, ChungFo successfully provided a high-efficiency cooling fan for a globally renowned brand of microwave-steam-oven combos. By integrating our 150mm DC Cross Flow Fan, the design achieved efficient, uniform, and quiet airflow within the compact device, delivering a stable cooking experience to end-users.

1. Customer Background: Cooling Challenges in Smart Microwave-Steam-Oven Combos

The client’s appliance integrates multiple functions—steam, bake, and microwave—within a confined space. This high-density design generates significant heat, leading to challenges such as:

Reduced lifespan of circuit boards and control modules due to prolonged high temperatures

Localized overheating around high-power heating elements

Uneven cooking performance caused by non-uniform airflow

Prior attempts using conventional axial fans and blower fans were insufficient due to inconsistent airflow and noise concerns. The client required a compact fan capable of generating uniform lateral airflow across all internal components.

2. ChungFo Solution: Customized Cross Flow Fan Integration

Through precise thermal simulation and airflow analysis, ChungFo recommended the 150mm long, 30mm diameter DC Cross Flow Fan. The design was customized for:

Optimal fit within the appliance chassis

Correct mounting hole distance

Maximum cooling efficiency within the limited internal space

Key Product Specifications:

Impeller Size: 150mm (L) × 30mm (D)

Overall Fan Size: 5.90 in (L) × 1.18 in (D)

Outer Frame: 198.0 ± 2.0 mm / 7.79 in

Mounting Hole Distance: 168.0 ± 1.0 mm / 6.61 in

Operating Voltage: DC 12V

Current Range: 0.15 ~ 0.53A

Speed: 2,500 ~ 4,500 RPM

Airflow: 22.50 ~ 43.47 CFM

Noise Level: 35 ~ 47 dB

Static Pressure: 0.60 ~ 2.80 mmH₂O

Bearing Type: Sleeve or Dual Ball Bearing

Lifespan: 50,000 hours at 25°C

Frame Material: Cold Rolled Steel

Impeller Material: Aluminum Alloy

Operating Temperature: -10°C ~ 70°C

Motor Protection: Auto-restart or polarity protection

Certification: UL Listed (No. E311396)

3. Advantages: Efficient, Uniform, and Quiet Airflow

Uniform Lateral Airflow

The Cross Flow Fan generates a wide, uniform air curtain inside the appliance, maintaining stable temperatures for heating modules and control boards, preventing local hotspots.

Optimized Airflow vs. Noise

Even at maximum speed, the fan provides up to 43.47 CFM airflow while maintaining noise levels between 35~47 dB, ensuring quiet operation in home kitchens without compromising cooling performance.

Long-Life Bearing System

Equipped with sleeve or dual ball bearings, the fan offers a lifespan of 50,000 hours, suitable for continuous long-term operation and reducing maintenance frequency.

Safety & Reliability

The fan motor includes auto-restart and polarity protection, preventing damage from reverse connection or power interruption. UL certification guarantees compliance with international safety standards for global markets.

4. Implementation & Performance Verification

Multiple on-site tests within the appliance chassis demonstrated:

Customer feedback:

“ChungFo’s Cross Flow Fan perfectly addressed our appliance’s cooling needs. Installation was simple, operation is stable and quiet, and overall thermal management has greatly improved user experience.”

5. Why Choose ChungFo?

Founded in 2000, ChungFo Electronic Co., Ltd. specializes in the design and manufacture of AC fans, DC fans, blower fans, and cross flow fans for high-quality thermal management solutions.

Company strengths include:

Factory Area: 12,000㎡

Annual Production: Over 8 million fans

R&D Team: 20+ engineers with expertise in thermal simulation and custom mold design

Global Market: Europe, North America, Southeast Asia, Middle East

Applications include home appliances, industrial equipment, and ventilation systems

ChungFo adheres to the “3H Principle”: High Efficiency, High Reliability, High Value, delivering customized solutions that match client requirements for airflow, voltage, and size.

6. Marketing Highlight: Smart, Quiet, Reliable Cooling

With the increasing complexity of smart appliances, traditional cooling solutions are insufficient. ChungFo Cross Flow Fans provide:

Intelligent temperature-controlled speed adjustment

Low-noise operation (35~47 dB)

Long-life bearings and motor protection

High-temperature tolerance to stabilize heating modules and control boards

Whether for OEM production or individual appliance upgrades, ChungFo delivers high-performance, low-noise, and durable cooling solutions.

7. Conclusion

The collaboration with this leading microwave-steam-oven brand showcases the advantages of ChungFo Cross Flow Fans，DC fan  in home appliance cooling systems.

With efficient airflow, quiet operation, long lifespan, and safety, ChungFo enables a stable, smart, and comfortable cooking experience for users.

Looking forward, ChungFo will continue innovating fan technologies, providing intelligent, energy-efficient cooling solutions to customers worldwide.