High-Speed Hair Dryer Brushless Motor Drive Case
Small Home Appliances | Client：某家电品牌
Project Background: The client is a personal care appliance company in Ningbo, needing to develop a high-speed hair dryer with speed reaching 110,000 RPM, benchmarking Dyson products.
Solution Design:
1. Main Control Chip: GD32F303RET6 high-performance MCU
2. Motor Driver: Three-phase brushless motor FOC driver algorithm
3. Speed Control: Maximum 110,000 RPM
4. Heating Control: PTC constant temperature heating, temperature error ±2℃
5. Negative Ion: Negative ion generator, hair care function
6. Power Solution: 220V AC input, power 1600W
Technical Challenges:
- High-speed FOC Algorithm: Sensorless FOC control
- Heat Dissipation Design: High power density heat dissipation solution
- EMC Design: Meet home appliance EMC standards
Deliverables:
- Hardware Design: Driver board, power board, control board
- Algorithm Development: FOC control algorithm, temperature closed-loop control
- Safety Certification: Passed CCC, CE, RoHS certification
- Mass Production Support: Introduced to production line, provided test solution
Customer Value: Product successfully launched, performance reached international similar product level, price only 1/3 of imported products.
Project Results
Project Results: Successfully delivered recordable greeting card module PCBA solution. Client has started mass production with monthly output of 200,000 units.
Key Metrics:
- Yield rate: 99.6%
- Power consumption: Coin battery, 1 year shelf life
- Performance: 10-30 seconds recording, light/magnet trigger
- Reliability: Ultra-thin design, card compatible
Client Feedback: Module thickness meets card requirements, sound quality good.