Power unit
    1.
    发明专利

    公开(公告)号:AU5138898A

    公开(公告)日:1998-07-03

    申请号:AU5138898

    申请日:1997-12-08

    Abstract: The present invention relates to an electric power unit with a condenser input type rectification circuit which converts an alternating current power source to a direct current voltage, and more particularly, to an electric power unit for inverter-controlled refrigerators. An electric power unit according to the present invention feeds electric power to a load (7), which comprises an alternating current power source (1), a bridge-type rectification circuit (2) having an input from the alternating current power source (1) and consisting of bridge-connected diodes (D1, D2, D3, D4), an auxiliary capacitor (3) connected in parallel to an output of the bridge-type rectification circuit (2), a series circuit of a reactor (4) and a diode (5) connected between one output of the bridge-type rectification circuit (2) and the load (7) so as to flow a load current in a forward direction, and a smoothing capacitor (6) connected in parallel to the load (7). Moreover, the reactor (4) is constituted of a first reactor (42) and a second reactor (43), a capacity of which is made variable through controlling of a parallel connection of the second reactor (43) to the first reactor (42) by a switching means (44) in accordance with a change of a current running in the first reactor (42) or a change of an environment where the first reactor (42) is used.

    Power unit
    2.
    发明专利

    公开(公告)号:AU718570B2

    公开(公告)日:2000-04-13

    申请号:AU5138898

    申请日:1997-12-08

    Abstract: The present invention relates to an electric power unit with a condenser input type rectification circuit which converts an alternating current power source to a direct current voltage, and more particularly, to an electric power unit for inverter-controlled refrigerators. An electric power unit according to the present invention feeds electric power to a load (7), which comprises an alternating current power source (1), a bridge-type rectification circuit (2) having an input from the alternating current power source (1) and consisting of bridge-connected diodes (D1, D2, D3, D4), an auxiliary capacitor (3) connected in parallel to an output of the bridge-type rectification circuit (2), a series circuit of a reactor (4) and a diode (5) connected between one output of the bridge-type rectification circuit (2) and the load (7) so as to flow a load current in a forward direction, and a smoothing capacitor (6) connected in parallel to the load (7). Moreover, the reactor (4) is constituted of a first reactor (42) and a second reactor (43), a capacity of which is made variable through controlling of a parallel connection of the second reactor (43) to the first reactor (42) by a switching means (44) in accordance with a change of a current running in the first reactor (42) or a change of an environment where the first reactor (42) is used.

    Power rectifier with harmonic suppression for supply of refrigerator motor inverter

    公开(公告)号:NZ336206A

    公开(公告)日:2001-03-30

    申请号:NZ33620697

    申请日:1997-12-08

    Abstract: A power unit for supplying power to the inverter power supply 45 for the compressor motor 46 of a refrigerator includes an AC power source 1, a bridge rectifier circuit 2 with diodes D1, D2, D3 and D4, an auxiliary capacitor 3 connected in parallel with the output of the rectifier, a serial circuit of a variable inductance 42, 43 and a diode 5 connected between one output of the rectifier and the inverter 45 so that a load current can flow in the forward direction, and a smoothing capacitor 6 connected in parallel with the inverter. The variable inductance includes a first inductance 42 and a second inductance 43, and the inductance can be changed by means of a switch 44 activated by the controller 47. The capacitance of the smoothing capacitor is about 100 times the capacitance of the auxiliary capacitor 3, which serves for the suppression of higher order harmonics during the operation of the power unit.

    POWER UNIT
    4.
    发明公开
    POWER UNIT 失效
    LEISTUNGSEINHEIT

    公开(公告)号:EP0945969A4

    公开(公告)日:2001-02-28

    申请号:EP97946153

    申请日:1997-12-08

    CPC classification number: H02M1/4266 Y02B70/123

    Abstract: A power unit having a capacitor input type rectifier circuit which converts AC power into a DC voltage, particularly, a power unit for inverter-controlled refrigerator. The power unit which supplies electric power to a load (7) is constituted of an AC power source (1), a bridge rectifier circuit (2) which inputs the electric power from the power source (1) and is formed by connecting diodes (D1, D2, D3 and D4) in bridges, an auxiliary capacitor (3) connected in parallel with the output of the circuit (2), a serial circuit of a reactor (4) and a diode (5) connected between one output of the circuit (2) and the load (7) so that a load current can flow in the forward direction, and a smoothing capacitor (6) connected in parallel with the load (7). The reactor (4) is constituted of a first reactor (42) and a second reactor (43), and the capacity of the reactor (4) can be changed by means of a switching means (44) which controls the parallel connection of the second reactor (43) with the first reactor (42) in accordance with the change of the current flowing to the first reactor (42), the utilizing environment of the first reactor (42), etc.

    Abstract translation: 本发明涉及具有将交流电源转换为直流电压的电容器输入型整流电路的电力单元,更具体地,涉及用于逆变器控制的电冰箱的电力单元。 根据本发明的电力单元将电力馈送到包括交流电源(1)的负载(7),具有来自交流电源(1)的输入的桥式整流电路(2) ),并联连接到桥式整流电路(2)的输出的桥式二极管(D1,D2,D3,D4),辅助电容器(3),反应器(4)的串联电路, 以及二极管(5),连接在桥式整流电路(2)的一个输出端和负载(7)之间,以使正向流动负载电流;以及平滑电容器(6),与 负载(7)。 此外,反应器(4)由第一反应器(42)和第二反应器(43)构成,其第二反应器(42)和第二反应器(43)由第二反应器(43)与第一反应器 )根据在第一反应器(42)中运行的电流的变化或使用第一反应器(42)的环境的变化,通过开关装置(44)。

    CONTROLLER FOR REFRIGERATOR
    5.
    发明专利

    公开(公告)号:JP2001147075A

    公开(公告)日:2001-05-29

    申请号:JP32800999

    申请日:1999-11-18

    Abstract: PROBLEM TO BE SOLVED: To acquire information about a refrigerator, such as refrigerator internal temperature at a place distant from the refrigerator and recognize the operating conditions of the refrigerator, at a location distant from the refrigerator. SOLUTION: This controller comprises a refrigerator body 1, a remote controller (information terminal) 21 disposed separately from the refrigerator body 1, a first communicating means attached to the refrigerator body 1, including a refrigerator transmitting means 17, a communicating unit 18 and a refrigerator receiving means 19, and a second communicating means attached to the remote controller 21, including a remote controller transmitting means 28, a communicating unit 18 and a remote controller communicating means 26, so that two-way data communication is enabled between the refrigerator body 1 and the remote controller 21.

    ARTICLE ORDERING DEVICE
    6.
    发明专利

    公开(公告)号:JP2000285163A

    公开(公告)日:2000-10-13

    申请号:JP8877799

    申请日:1999-03-30

    Abstract: PROBLEM TO BE SOLVED: To enable even a person who is not skilled in operation of terminals or machines such as a computer to easily order a desired article to be purchased concerning an article ordering device for ordering an article such as food and a food storage cabinet. SOLUTION: The description of a paper sheet such as an order form is read by a scanner control means 9, image data are stored in an image storage means 11, the image data are displayed on a display means 6, the description displayed on the display means 6 is moved to an address storage means with a finger or the liken and the article can be ordered through a communication line such as a public line network. Thus, even a person who is not skilled in operation of terminals or machines such as a computer can easily order the article.

    FOOD MANAGING DEVICE AND FOOD CONTACTING CHAMBER

    公开(公告)号:JP2000180031A

    公开(公告)日:2000-06-30

    申请号:JP35564398

    申请日:1998-12-15

    Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of rottenness because of food being left unused and to suppress unnecessary purchase of food by a method wherein data, such as a purchase food name, during management of a stock is rapidly, simply, and high-efficiently inputted. SOLUTION: A surface image, such as a paper surface, pressed by a scanner operation means 22, is read as image data. Image data is stored on an image memory means 24 by a control means 23 and displayed on a display means 25. Further, a food management device 16 is provided to consist of a communication control means 26 to perform control of transmission and receipt of a signal to and from a remote communication terminal apparatus 28 through a public telephone circuit network. Since the receipt and memo of a purchase food are stored as they are by providing the food management device, management of a food stock and electronic ordering are simply practicable.

    COMPRESSOR
    9.
    发明专利

    公开(公告)号:JPH10110692A

    公开(公告)日:1998-04-28

    申请号:JP26587196

    申请日:1996-10-07

    Abstract: PROBLEM TO BE SOLVED: To lower starting torque in a starting time by providing a controller always opening a discharge valve in a starting time. SOLUTION: A tip part 20a of an electromagnet 20 is opposed to a discharge lead 7 via a spring lead 22 and a stopper 23 so as to be fixed in a cylinder head 15. In a starting time, a compressor start detecting means detects a start, of a compressor so as to give an excitation command for a timer which energizes the electromagnet 20 for a set time set around a time required for bringing the compressor to the steady number of revolutions. Then, the electromagnet 20 is magnetized by means of excitation based on the timer, and by means of the magnetic force from the tip part 20a, the discharge lead 7 is forcibly opened, and then, a discharge valve 5 is set in a normally-open condition. Under this condition, coolant is hardly compressed even if a piston 3 is advanced and set in a compression stroke. After a lapse of the set time, the timer stops excitation to the electromagnet 20 so as to release magnetization in the electromagnet 20, so that the discharge valve 5 is returned to a normal condition.

    RECIPROCATING COMPRESSOR
    10.
    发明专利

    公开(公告)号:JPH10110680A

    公开(公告)日:1998-04-28

    申请号:JP26587396

    申请日:1996-10-07

    Abstract: PROBLEM TO BE SOLVED: To control capability of a compressor by adjusting opening of a suction valve during operation of a compressor, and controlling a circulation amount of coolant. SOLUTION: A compressor is provided with a suction valve 11 which has a suction lead 14 in which a magnet 20 is fixed to a surface corresponding to a suction hole 12; an electromagnet 21 which has a leading end directed to the suction lead 14 at the position opposed to the suction lead 14 through the suction hole 12 and the suction hole 12; and an under-operation current carrying voltage control device which carries current to the electromagnet 21 during operation and adjusts the voltage. It is thus possible to adjust lifting up of the suction lead 14 and control a passage amount of coolant.

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