Power supply circuit for an air conditioner
    2.
    发明公开
    Power supply circuit for an air conditioner 失效
    Stromversorgungseinrichtungfüreine Klima-Anlage

    公开(公告)号:EP0820136A2

    公开(公告)日:1998-01-21

    申请号:EP97111925.0

    申请日:1997-07-14

    申请人: HITACHI, LTD.

    IPC分类号: H02J1/02

    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中充电来获得反相器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的直流电压的分压电压Ed2(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具有低损耗和h 对于a-c源电压中的每一个,通过适当地设定电压的比率来实现高效率。

    Power supply circuit for an air conditioner
    3.
    发明公开
    Power supply circuit for an air conditioner 失效
    空调的电源电路

    公开(公告)号:EP0820136A3

    公开(公告)日:1998-06-10

    申请号:EP97111925.0

    申请日:1997-07-14

    申请人: HITACHI, LTD.

    IPC分类号: H02J1/02

    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通用且具有高功率因数的各种交流电源电压的空调器,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 逆变器13的直流电源电压Ed是通过在电容器5中充电而获得的。这里,存在100V和200V的交流电源电压,并且当电容器5的直流电压的分压Ed1被选择 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的直流电压的分压电压Ed2(这里Ed1> Ed1),并且用作dc 电压Ed',用于控制开关元件6的接通和断开。尽管直流电源电压Ed根据100V或200V的交流电源电压而不同,但可以将直流电源电压Ed设置为用于操作的电压值 具有低损耗和h的逆变器13 通过适当地设定分压的比率,对于a-c电源电压中的每一个电源电压具有高效率。

    Clothes dryer
    4.
    发明公开
    Clothes dryer 失效
    Wäschetrockner。

    公开(公告)号:EP0356689A1

    公开(公告)日:1990-03-07

    申请号:EP89113241.7

    申请日:1989-07-19

    申请人: HITACHI, LTD.

    IPC分类号: D06F58/24

    CPC分类号: D06F58/24

    摘要: A clothes dryer equipped with a condensation unit (23, 38, 73) in which the cooling water that is fed is brought into direct contact with the humid air to dehumidify the humid air.
    The clothes dryer comprises a drum (4) which is horizontally supported by bearings in a dryer housing and which contains a laundry therein; a condensation unit (23, 38, 73) which cools the humid air containing vapor generated from said laundry, and which condenses the vapor contained in the humid air to remove it; a heater (26) accommodated in a heater duct (8d) for heating the air that is dehumidified through the condensation unit (23, 38, 73); a circulating fan (20) which supplies the humid air in the drum (4) to the condensation unit (23, 38, 73), supplies the air in the condensation unit (23, 38, 73) to the surrounding of the heater (26), and supplies the air from the surrounding of the heater (26) to the drum (4). The condensation unit (23, 38, 73) of the clothes dryer comprises a first duct (24, 39, 75) connected at its one end to the delivery portion of the circulating fan (20) and arranged with its other end being directed downwardly of the dryer housing; a second duct (25, 40, 76) connected at its one end to the other end of the first duct (24, 39, 75) and connected at its other end to the heater duct (8d); a cooling water pouring port for feeding cooling water to the second duct; cooling means for bringing the cooling water into direct contact with the humid air; and a water drain port for draining from the second duct (25, 40, 76) the water condensed from the humid air and the cooling water.

    摘要翻译: 一种装有冷凝装置(23,38,73)的衣物干燥机,其中供给的冷却水与潮湿空气直接接触以对湿空气进行除湿。 干衣机包括滚筒(4),其由干燥器壳体中的轴承水平地支撑并且在其中容纳衣物; 冷凝单元(23,38,73),其冷却含有由所述衣物产生的蒸汽的潮湿空气,并且冷凝包含在所述潮湿空气中的蒸气以将其除去; 容纳在加热器管道(8d)中的加热器(26),用于加热通过冷凝单元(23,38,73)除湿的空气; 将在滚筒(4)中的潮湿空气供应到冷凝单元(23,38,73)的循环风扇(20)将冷凝单元(23,38,73)中的空气供应到加热器的周围 26),并且将空气从加热器(26)的周围供应到滚筒(4)。 干衣机的冷凝单元(23,38,73)包括:第一管道(24,39,75),其一端连接到循环风扇(20)的输送部分,并且其另一端被定向向下 的干衣机外壳; 第二管道(25,40,76)在其一端连接到第一管道(24,39,75)的另一端并且在其另一端连接到加热器管道(8d); 用于将冷却水供给到第二管道的冷却水倾倒口; 用于使冷却水与潮湿空气直接接触的冷却装置; 以及用于从第二管道(25,40,76)排出从湿空气冷凝的水和冷却水的排水口。