As the global home appliance industry continues moving toward lightweight, high-efficiency, and smart products, compact 2kg washer-dryer combos have rapidly become a strategic category for many top international brands. With much smaller dimensions and a more condensed internal structure, these machines face a major engineering challenge: rapid temperature rise during high-speed drying, heat accumulation in confined spaces, and insufficient cooling for electronic control modules.

To ensure stable performance within such a compact body, the washer-dryer manufacturer required a high-efficiency, low-noise, and highly reliable DC cooling fan solution. After comparing multiple suppliers, the brand finally chose Chungfo as its cooling partner and selected the HTC09330S12H DC fan as the core cooling component for its new 2kg smart washer-dryer combo.

1. Project Background: Thermal Challenges of Compact High-Performance Washer-Dryers

To integrate both washing and drying into a small form factor, 2kg washer-dryer combos must reduce internal component spacing while still maintaining full functionality. This leads to several cooling problems:

Heating components are located close to the PCB, causing concentrated heat and slower heat dissipation.

Air circulation channels are shortened, requiring stronger airflow and higher static pressure.

Long drying cycles demand cooling systems with excellent reliability and thermal endurance.

Limited structural space means the cooling fan must remain compact while delivering strong performance.

In summary, the manufacturer needed a cooling system that could guarantee:

High static pressure: to push air effectively through narrow internal ducts.

Large airflow: to accelerate heat exchange and remove moisture-laden hot air.

Low noise and long life: essential for premium household appliances.

Chungfo’s DC fan model HTC09330S12H was the ideal match for these requirements.

2. Technical Specifications & Advantages of HTC09330S12H

Model: HTC09330S12H

Voltage: 12V

Speed: 4600 RPM ±10%

Current: 0.90A ±15%

Bearing Type: Sleeve Bearing

Airflow: Approx. 26 CFM

Static Pressure: Approx. 40 mmAq

UL Certification: E311396

Key Advantages for Washer-Dryer Applications

1. High Static Pressure + High Airflow

The 40 mmAq static pressure allows the fan to overcome airflow resistance caused by the narrow internal ducts and moisture-laden air. It ensures continuous and stable air movement throughout the drying cycle.

The 26 CFM airflow enhances heat exchange efficiency, rapidly removing hot air from heating elements and electronic modules.

2. Low-Noise Operation Suitable for Home Appliances

The sleeve bearing structure ensures quieter, smoother operation while maintaining long-term stability—essential for household environments where sound levels matter.

3. Certified Safety and Long-Term Reliability

With UL certification (E311396), the fan meets international safety standards required for global home appliance products.

Chungfo’s rigorous production and quality control guarantee that the fan performs reliably under 24/7 operating conditions, reducing customer service issues and enhancing brand reputation.

3. Chungfo Electronics: Two Decades of Professional Cooling Expertise

Founded in 2000, Chungfo is a professional manufacturer of AC fans, DC fans, and blower fans, widely used in:

Washing machines & washer-dryer combos

Refrigerators and air conditioners

Industrial equipment

Ventilation systems

Smart home devices

Core Strengths of Chungfo

1. Full In-House Manufacturing Capabilities

Chungfo manages every step from fan design, mold development, motor engineering, to final assembly. This ensures high production efficiency and stable product quality, with monthly DC fan output reaching the million-unit level.

2. Strong Engineering Team for Custom Solutions

For different duct structures, noise requirements, and performance curves, Chungfo offers rapid customization of impeller geometry, motor control parameters, and system integration support.

3. Complete Certification & High International Standards

Products comply with UL, CE, RoHS, and meet the safety requirements for worldwide export markets.

4. Application Result: An Optimized Cooling Solution for a Premium 2kg Washer-Dryer Combo

During the project, Chungfo collaborated closely with the customer’s R&D team to analyze airflow, optimize ducts, and match the cooling performance. After extensive testing, HTC09330S12H delivered outstanding results:

1. Control panel temperature reduced by 18%

The fan effectively maintained safe PCB temperatures during high-heat drying modes.

2. Drying efficiency improved by 12%

Stronger airflow enhanced hot air circulation, achieving a premium drying experience in a compact machine.

3. Noise level reduced by approximately 3 dB

The optimized airflow structure and fan characteristics provided a noticeably quieter user experience.

4. Lower overall failure rate

Long-term endurance testing showed stable motor performance, improving the reliability and lifespan of the machine.

The manufacturer commented:

“This is a highly efficient cooling solution ideal for compact appliances—stable, reliable, and quiet. It plays an essential role in our new-generation washer-dryer combo.”

5.  Why Global Brands Choose Chungfo

Chungfo provides not only fans, but complete cooling solutions.

Leading manufacturers choose Chungfo because of:

Over 20 years of cooling expertise

Comprehensive international safety certifications

Fast engineering response and customization capability

Consistent mass production quality

Highly competitive pricing

With a proven track record in global appliance applications, Chungfo’s DC fans help customers achieve more reliable, energy-efficient, and competitive end products.

Conclusion

As compact home appliances continue to evolve, thermal management becomes increasingly critical. Through this collaboration with a renowned brand’s 2kg washer-dryer combo project, Chungfo’s HTC09330S12H DC fan demonstrated superior performance in solving high-temperature challenges in confined spaces.

Chungfo will continue providing innovative, efficient, and reliable cooling solutions to support the next generation of smart home appliances worldwide.