Lightweight hair dryer sales.Design of high-speed hair dryer control board

　　With the technological breakthrough of domestically produced small high-speed DC brushless motors, domestic brands of high-speed hair dryers are being interviewed one after another, conducting a comprehensive competition in terms of price, appearance, weight, noise, air temperature, wind speed, and expanded functions.

　　From the analysis of the air intake structure of the high-speed blower, there are two ways of air intake: handle air intake and hammer tail air intake. The corresponding motors are slightly different, and the handle air intake needs to consider the comfort of the user's handheld. Therefore, motors with a diameter of less than 32mm are mostly used, and the matched control board needs to control the motor speed to be above 110000 rpm. For the air intake method at the tail end of the hair dryer hammer, due to the large space, a motor with a diameter of 34mm or more can be used, and the suitable effect can be achieved by controlling the speed between 100000 to 110000 rpm.

　　The control board of the high-speed blower also has various styles. Referring to Dyson's circular plate design, due to its relatively small effective area, two pieces of PCBA are often used for splicing, one for AC/DC conversion and the other for motor control and other functions. There is also a long strip control board installed inside the handle, suitable for products with air intake after the hammer head. This type of method can integrate button functions together, making production and assembly more convenient. At present, circular PCBA is more commonly used. Due to its large usable area, various devices can be arranged in the most comfortable position, making it relatively easier to pass certification testing.

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