Air conditioner
    1.
    发明授权
    Air conditioner 失效
    冷气机

    公开(公告)号:US5929591A

    公开(公告)日:1999-07-27

    申请号:US895033

    申请日:1997-07-16

    摘要: For achieving an air conditioner being applicable to various a-c source voltages in common and operative with high power factor by suppressing generation of high harmonics, an a-c source voltage from an a-c electric power source 1 is rectified in full-wave by a rectifier 2, and a d-c source voltage Ed of an inverter 13 is obtained by being charged in a condenser 5. Here, there are a-c source voltages of 100 V and 200 V, and a divided voltage Ed1 of the d-c voltage of the condenser 5 is selected when the a-c source voltage is 100 V, a divided voltage Ed2 (here, Ed1>Ed1) of the d-c voltage of the condenser 5 is selected when the a-c source voltage is 200 V, respectively by an exchange switch 18, and is used as a d-c voltage Ed' for controlling on and off of a switch element 6. Though the d-c source voltage Ed differs depending on the a-c source voltage of 100 V or 200 V, it is possible to set the d-c source voltage Ed at a voltage value for operating the inverter 13 with low loss and high efficiency, for each one of the a-c source voltages, by setting a ratio of the voltage division appropriately.

    摘要翻译: 为了通过抑制高次谐波的产生来实现适用于各种交流电源的空调,并且以高功率因数运行,来自交流电源1的交流电源电压由整流器2全波整流,并且 通过在电容器5中充电来获得逆变器13的直流源电压Ed。这里,交流源电压为100V和200V,并且当电容器5的直流电压的分压电压Ed1被选择时 交流电源电压为100V时,交流开关18分别在交流电源电压为200V时选择电容器5的直流电压的分压e2(这里为Ed1> Ed1),并用作直流 电压Ed'用于控制开关元件6的导通和截止。尽管直流电源电压Ed根据100V或200V的交流电源电压而不同,但是可以将直流电源电压Ed设置为操作的电压值 变频器13的损耗低,高 对于a-c源电压中的每一个,通过适当地设定电压分压比来提高效率。