变频空调是与传统的定频空调相比而产生的概念，我国的电源电压时为220伏、50赫兹，在这话总条件下工作的空调就叫做“定频空调。”由于供电频率不能改变，定频空调的压缩机转速基本不变，所以它不能大幅度低调节制冷量，而是通过频繁的开启关闭压缩机的方式来调节房间的温度高低。
Inverter air conditioner is compared with the traditional fixed frequency air-conditioning and produce, supply voltage of China is 220 volts, 50 Hz, in this condition is called "fixed frequency air-conditioning air-conditioning." Because of the power supply frequency can not be changed, fixed frequency air-conditioning compressor speed basically unchanged, so it cannot greatly understated cold temperature control, but through the opening and closing of the compressor way frequently to adjust the room.
变频空调能节省电能，由于它的压缩机不会频繁开启，会使压缩机保持温度的工作状态，可以使空调整体达到节能30%，同时噪音还会减少，延长空调的使用寿命。变频空调可以在短时间内达到设定的温度，一般仅为定频空调的一般时间，然后进行到以较低的频率运转，维持室内设定的温度。
Inverter air conditioner energy saving electric energy, because it is not frequent open compressor, the compressor will maintain the temperature of the working state, can make the air conditioner overall reach 30% energy saving, but also reduce noise, prolong the service life of air conditioning. Frequency conversion air conditioning can reach the set temperature in a short time, generally only the general time of fixed frequency air conditioner, and then to low frequency operation, maintain indoor set temperature.