Inverter air conditioner room air conditioner is the direction of the development of today's Zhengzhou Galanz air conditioner sales customer service, which regulates the compressor speed (frequency) by the inverter controller, to achieve the cooling (heating) the amount of room heat (cold) to automatically match the load, with thermostat speed, good low-temperature thermal efficiency, high precision temperature control, suitable temperature, wide voltage range of advantages. Especially with the inverter technology development Galanz air conditioner sales, air from the AC variable frequency to brushless DC motors, permanent magnet synchronous motor frequency, and therefore whether it is from the use of inverter air conditioner power electronic devices, or control strategies are widely used contemporary and advanced technologies. Whether it is domestic or imported inverter air conditioner, the control circuit is much the same principle, generally by the indoor unit and outdoor unit control circuit. Inverter compressor AC asynchronous motors, permanent magnet synchronous motor (PMSM) or switched reluctance motor; intelligent power module IPM package with six or seven packages GTO, IGBT and other power electronic devices, and overcurrent, overtemperature, undervoltage protection , GTO or IGBT drive other circuits integrated in one; the mains power supply board is via a bridge rectifier, filter, regulator obtained after direct current supply IPM module, the inverter output phase AC supply variable frequency inverter compressor; Indoor and outdoor MPU board is the soul and heart of the system, were used two microcontrollers. Fan wheel principle and the role of the following: (1) a centrifugal fan. The centrifugal fan mounted inside the air conditioner evaporator Zhengzhou Galanz air conditioner sales addresses the role of indoor air sucked Zhengzhou Galanz air conditioning maintenance point, after the evaporator cooling compressed by the impeller into the duct and blowing interior along the duct. By spiral centrifugal fan impeller, housing, shaft and bearing brackets and other components. Which is characterized by large air volume, low noise, compact structure, small size, and with the speed dropped significantly reduce fan noise. Centrifugal fan motor and general fan motor much the same. Centrifugal fan impeller mainly using ABS plastic or aluminum impeller, its variable speed fan motor to use more structure, speed of between 650 to 1400 rpm, power is between 20 ~ 180W. (2) axial fans. Axial fan is mainly used outside of the window type and split air conditioner room, its role is to blow outdoor condenser heat from the refrigerant from gaseous to a liquid state. Simple axial fan structure, the number of very few leaves and a cylindrical sleeve components. Blade multi-use aluminum or ABS plastic. It features low noise, low air pressure, air volume, low manufacturing costs. Galanz air conditioning service in Zhengzhou, Zhengzhou Galanz air conditioner sales, Kim Seong-appliance repair center provided by Zhengzhou City, Prudential appliance repair center. "Zhengzhou US air-conditioning repair, refrigerator repair flying Zhengzhou, Zhengzhou, Haier washing machine repair" preferred appliance repair Zhengzhou City, Prudential Center (2), the company is located at: Zijin Road Guancheng District, over the years, Kim Chen appliance repair center adhere to the customers provide the best quality service, Contact: Mr. Wang. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Kim Chen appliance repair center expect to be your long-term partner!