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应用领域
广泛应用于汽车电子、新能源、工业及消费电子领域
Application of 500V Planar MOS in High-speed Hair Dryers
2024.03.06
1、High-speed hair dryer
High-speed hair dryer refers to the use of BLDC motor, the speed of more than 100,000 rpm hair dryer, this type of hair dryer uses DC brushless motor motor, with high speed, small size, long life and other advantages, in terms of appearance high-speed hair dryer also abandons the traditional long air nozzle shape, the choice of short air nozzle, the motor is placed at the handle, the center of gravity is sunken, more ergonomic.
Advantages of high-speed hair dryers:
1. High wind speed, fast hair drying speed: The high-speed hair dryer motor has a fast speed, a large wind speed, can quickly blow away moisture, good drying effect, can dry hair without too high temperature, retain the healthy moisture of the hair itself, dry the hair quickly and avoid burning the hair at high temperatures.
2. Low noise: Traditional ordinary hair dryers use AC series motors, which are noisy. The high-speed hair dryer adopts FOC control to accurately control the size and direction of the magnetic field, so that the motor torque is stable, the noise is low, and the efficiency is high, which can ensure that the motor air output is uniform and fast.
3. Small size: The high-speed hair dryer is compact and more convenient to carry. It is also convenient to design products with a more beautiful appearance.
4. Light weight: The high-speed hair dryer is light in weight and has high balance accuracy, which realizes low vibration when the motor is working, and the user has a comfortable feel when holding the hair dryer.
2、Market Analysis
The global Speed Hair Dryer market is highly concentrated, with the top five manufacturers Dyson, Laifen, Panasonic, Sushi and Dreame accounting for a total of about 90% of the share, of which Dyson maintains the lead with a market share of 43%. China is still the largest consumer market, accounting for 60%, while Europe and North America rank second and third, accounting for about 17% and 11%. On the product side, high-speed models with wind speeds of 20-50 m/s are the mainstream, accounting for more than 82%. In the future, the global high-speed hair dryer market will continue to evolve towards high-end, intelligent and scenario-based: it is expected that by 2026, China's proportion as a core consumer market will climb to 65%, and the penetration rate of high-speed models will exceed 90%, driving global retail sales of more than 35 million units and retail sales exceeding 8 billion yuan. emerging brands seize market segments through differentiated designs (such as ultra-quiet, portable folding); At the technical level, the efficiency of high-speed brushless motors will be increased to more than 85%, with AI algorithms to achieve dynamic air temperature adjustment, while the application of environmentally friendly materials and low energy consumption design have become the standard configuration in the industry; On the channel side, social e-commerce such as Douyin and Xiaohongshu is expected to account for more than 40%, and overseas e-commerce accelerates its penetration into high-end markets in Europe and the United States through cross-border e-commerce, forming a two-wheeled growth pattern of "technology-driven experience upgrade + omni-channel reach of users".
3、Product Application and Advantages
High-speed hair dryer topology
The standard H6 circuit adopts FOC control to realize the control of current vectoring, that is, the vector control of the magnetic field of the motor stator. Because the direction of the motor stator magnetic field is controlled, the motor stator magnetic field and the rotor magnetic field can be kept at 90° at all times, and the maximum torque output under a certain current can be realized. Through high-frequency switching, the rotation speed is increased to meet the air volume requirements of high-speed hair dryers. The advantages of FOC control method are: small torque fluctuation, high efficiency, low noise, and fast dynamic response.
For the high-speed hair dryer market, Lonten Semiconductor's 500V Planar MOS, its product advantages:
For the H6 topology, the body diode is optimized to reduce the reverse recovery loss.
Optimize the ratio of Vth, Qg and Coss/Ciss to reduce the drive loss and improve the anti-interference ability of the drive.
Optimized switching speed, better EMI characteristics;
Optimized EAS to enhance avalanche resistance.
The above advantages make the application of Lonten products in high-speed hair dryers simple.
Note: The above data is from Lonten Semiconductor, please indicate the source for reprinting.
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