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    Heat pump device, and air conditioner, heat pump water heater, refrigerator, and freezer comprising same
    21.
    发明专利
    Heat pump device, and air conditioner, heat pump water heater, refrigerator, and freezer comprising same 未知

    公开(公告)号：AU2013390196B2

    公开(公告)日：2016-09-15

    申请号：AU2013390196

    申请日：2013-05-23

    Applicant: MITSUBISHI ELECTRIC CORP

    Inventor： HATAKEYAMA KAZUNORI ,  KAMIYA SHOTA ,  YUASA KENTA ,  MATSUSHITA SHINYA ,  KUSUBE SHINSAKU

    IPC: F25B1/00 ,  F24F11/02 ,  H02M7/48

    Abstract: The purpose of the present invention is to provide a heat pump device capable of efficiently and reliably preventing liquid refrigerant from accumulating inside a compressor by keeping an amount of electrical power supplied to the compressor motor to be constant and keeping an amount of heating to the compressor to be constant upon restrained energization of the compressor motor, and to provide an air conditioner, a heat pump water heater, a refrigerator, and a freezer which comprise the heat pump device. A heat pump device is configured such that, while the compressor is in operation standby, a high frequency voltage synchronized to a carrier signal is supplied to a compressor motor for restrained energization of the compressor motor. Detected values corresponding to one cycle of the high frequency energization cycle are restored from a phase-to-phase voltage, a phase voltage, or a phase current of the compressor motor for a plurality of cycles of high frequency energization, and control is performed so that the power value calculated using the restored detected values corresponding to one cycle of the high frequency energization cycle matches the heating power command necessary to discharge liquid refrigerant accumulating in the compressor to the exterior of the compressor.

    Heat pump device, air conditioner, and refrigerating machine
    22.
    发明专利
    Heat pump device, air conditioner, and refrigerating machine 未知

    公开(公告)号：AU2012383156B2

    公开(公告)日：2016-02-25

    申请号：AU2012383156

    申请日：2012-06-20

    Applicant: MITSUBISHI ELECTRIC CORP

    Inventor： KAMIYA SHOTA ,  HATAKEYAMA KAZUNORI ,  YUASA KENTA ,  MATSUSHITA SHINYA ,  KUSUBE SHINSAKU ,  MAKINO TSUTOMU

    IPC: F25B1/00 ,  H02M7/48

    Abstract: A heat pump device equipped with: a compressor (1) having a compression mechanism that compresses a refrigerant and a motor (8) that drives the compression mechanism; an inverter unit (9) that applies voltage for driving the motor (8); an inverter control unit (10) that generates a drive signal for driving the inverter (9); and temperature sensors (35a, 35b) that detect the temperature of the compressor (1). The inverter control unit (10) has a normal operation mode wherein the compressor (1) is operated normally, thereby compressing the refrigerant, and a heating operation mode wherein the compressor (1) is heated and operated by applying a high-frequency voltage to the motor (8). In the heating operation mode, the amplitude and phase of a voltage command for the purpose of generating the high-frequency voltage are determined on the basis of the temperatures detected by the temperature sensors (35a, 35b) and a predetermined required heating amount.

    Heat pump device, and air conditioner, heat pump/hot-water supply machine, refrigerator, and freezer equipped with same
    23.
    发明专利
    Heat pump device, and air conditioner, heat pump/hot-water supply machine, refrigerator, and freezer equipped with same 未知

    公开(公告)号：AU2011383457B2

    公开(公告)日：2016-01-14

    申请号：AU2011383457

    申请日：2011-12-14

    Applicant: MITSUBISHI ELECTRIC CORP

    Inventor： HATAKEYAMA KAZUNORI ,  KAMIYA SYOTA ,  YUASA KENTA ,  MATSUSHITA SHINYA ,  KUSUBE SHINSAKU ,  MAKINO TSUTOMU

    IPC: F25B1/00 ,  F24F11/02

    Abstract: The objective of the present invention is to provide a heat pump device with which the compressor is heated efficiently in accordance with the required amount of heating, thereby reliably preventing the accumulation of refrigerant in the interior of the compressor and reducing standby power consumption. In addition, the objective is to provide an air conditioner, a heat pump/hot-water supply machine, a refrigerator, and a freezer equipped with this heat pump device. An inverter control unit (10) is equipped with a constraint energization control unit (12), which determines whether heating of a compressor (1) is required on the basis of the amount of refrigerant remaining in the compressor (1) during the standby operation of the compressor (1), and which, when it is determined that heating of the compressor (1) is required, selects either a direct current energization wherein direct current voltage is supplied to a motor (8) or a high-frequency energization wherein a high-frequency voltage that is higher than during normal operation is supplied to the motor (8), in response to the amount of refrigerant remaining in the compressor, with the constraint energization control unit then outputting a constraint energization command for executing constraint energization of the motor (8). The inverter control unit also is equipped with a drive signal generation unit (13) that generates a drive signal on the basis of the constraint energization command.

    Heat pump device, air conditioner, and cooling machine
    24.
    发明专利
    Heat pump device, air conditioner, and cooling machine 未知

    公开(公告)号：AU2012377681B2

    公开(公告)日：2015-12-10

    申请号：AU2012377681

    申请日：2012-04-16

    Applicant: MITSUBISHI ELECTRIC CORP

    Inventor： KAMIYA SHOTA ,  HATAKEYAMA KAZUNORI ,  YUASA KENTA ,  MATSUSHITA SHINYA ,  KUSUBE SHINSAKU ,  MAKINO TSUTOMU

    IPC: F25B1/00 ,  F04C29/04 ,  F24F11/02 ,  H02M1/00 ,  H02M3/155 ,  H02M7/48

    Abstract: The present invention is characterized in being provided with a compressor (1) having a compression mechanism (7) for compressing a refrigerant and a motor (8) for driving the compression mechanism (7), an inverter (9) for applying a voltage to drive the motor (8), a converter (10) for applying a voltage to the inverter (9), an inverter controller (12) for generating a drive signal to drive the inverter (9), and a converter controller (17) for generating a drive signal to drive the converter (10). The inverter controller (12) has a heat operation mode in which the compressor (1) is operated to heat, and a continuous operation mode for continually operating the compressor (1) to compress the refrigerant. The converter controller (17) sets a voltage to apply to the inverter (9) on the basis of the voltage instruction value for the motor (8) when the inverter controller (12) is in heat operation mode.

    HEAT PUMP DEVICE, HEAT PUMP SYSTEM, AND INVERTER CONTROL METHOD
    29.
    发明公开
    HEAT PUMP DEVICE, HEAT PUMP SYSTEM, AND INVERTER CONTROL METHOD 有权
    热泵装置，热泵系统和UMRICHTERSTEUERUNGSVERFAHREN

    公开(公告)号：EP2763303A4

    公开(公告)日：2015-10-07

    申请号：EP11873126

    申请日：2011-09-30

    Applicant: MITSUBISHI ELECTRIC CORP

    Inventor： HATAKEYAMA KAZUNORI ,  KAMIYA SYOTA ,  YUASA KENTA ,  MATSUSHITA SHINYA ,  KUSUBE SHINSAKU ,  MAKINO TSUTOMU

    IPC: H02M7/48 ,  F25B13/00 ,  F25B49/02 ,  H02H3/08 ,  H02M1/32 ,  H02P29/00

    CPC classification number: F25B49/025 ,  F25B13/00 ,  F25B2500/28 ,  F25B2600/024 ,  F25B2700/151 ,  H02H3/08 ,  H02M1/32 ,  H02P29/62

    Abstract: An object is to prevent a motor and an inverter from being damaged due to the flow of a large current when a compressor is heated by supplying a high-frequency AC voltage to the compressor. The heat pump device includes an inverter control unit outputting PWM signals to an inverter 9; a current detection unit 20 detecting a current value flowing in the inverter 9 and outputting the current value after reducing a current value having a first frequency or higher in detected current value; and a drive-signal stop unit 41, 42 that, when the current value output from the current detection unit 20 is equal to or larger than an interruption level, stops output of PWM signals to the inverter 9. Particularly, the inverter control unit generates a voltage command value such that the voltage command value becomes a value equal to or larger than a lower limit determined according to the first frequency and generates PWM signals based on generated voltage command value and a carrier signal, thereby causing a voltage output time to the motor to be a predetermined time or longer.

    BACKFLOW PREVENTION DEVICE, POWER CONVERTER, MOTOR DRIVE DEVICE, AND REFRIGERATING AND AIR-CONDITIONING DEVICE
    30.
    发明公开
    BACKFLOW PREVENTION DEVICE, POWER CONVERTER, MOTOR DRIVE DEVICE, AND REFRIGERATING AND AIR-CONDITIONING DEVICE 有权
    摩托罗拉，德克萨斯州立大学

    公开(公告)号：EP3018807A4

    公开(公告)日：2017-06-21

    申请号：EP13888759

    申请日：2013-07-02

    Applicant: MITSUBISHI ELECTRIC CORP

    Inventor： SHIMOMUGI TAKUYA ,  ARISAWA KOICHI ,  YAMAKAWA TAKASHI ,  UEMURA KEISUKE ,  MATSUBARA NORIYUKI ,  KUSUBE SHINSAKU ,  YUASA KENTA ,  TSUMURA AKIHIRO

    IPC: H02M3/158 ,  H02M1/00

    CPC classification number: H02M1/32 ,  H02M3/156 ,  H02M3/158 ,  H02M2001/0051 ,  H02M2001/325 ,  H02P27/06 ,  H03K17/16 ,  H03K17/74 ,  Y02B70/1491

    Abstract: A backflow preventing device includes a backflow preventing element 5 that is connected between a power supply 1 and a load 9 and that prevents electric current from flowing backward from the load 9 side toward the power supply 1 side, a commutating device 7 that performs a commutation operation for causing the electric current to flow to a commutation path connected in parallel with the backflow preventing element 5, and a controller 100 that sets a time for performing the commutation operation and causes the commutating device 7 to perform the commutation operation based on the set time. The backflow preventing device has a plurality of the commutation paths and has, for example, elements with small current-carrying capacities disposed in the commutation paths to achieve cost reduction and to cope with, for example, failures, thereby allowing for enhanced reliability for reducing recovery electric current.

    Abstract translation: 防回流装置包括连接在电源1和负载9之间并防止电流从负载9侧向电源1侧向后流动的防回流元件5，进行换向的换向装置7 用于使电流流向与防回流元件5并联连接的换向路径的操作;以及控制器100，其设定用于执行换向操作的时间，并使换向装置7基于该设定进行换向操作 时间。 防回流装置具有多个换向路径，并且例如具有设置在换向路径中的小载流能力的元件，以实现成本降低并且例如应对故障，从而允许增强可靠性以减少 恢复电流。

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