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1.发明申请公开(公告)号：US20200328695A1
公开(公告)日：2020-10-15
申请号：US16605369
申请日：2017-07-07
发明人： Kenji IWAZAKI , Takashi YAMAKAWA , Shigeo UMEHARA
摘要： An AC-DC converting apparatus includes: a boost circuit including a reactor supplied with power supply voltage output from an alternating-current power supply, a first leg including a first upper-arm element and a first lower-arm element connected in series, and a second leg connected in parallel with the first leg and including a second upper-arm element and a second lower-arm element connected in series, and boosting the power supply voltage; and a first voltage detecting unit detecting the power supply voltage. When the power supply voltage is positive, the AC-DC converting apparatus causes the first lower-arm element and the second upper-arm element to perform boosting operation alternately every power supply cycle that is cycle of the power supply voltage, and when the power supply voltage is negative, the AC-DC converting apparatus causes the first upper-arm element and the second lower-arm element to perform boosting operation alternately every power supply cycle.
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公开(公告)号：US20160091235A1
公开(公告)日：2016-03-31
申请号：US14845330
申请日：2015-09-04
发明人： Shigeo UMEHARA
摘要： An outdoor device of an air conditioner includes a compressor, an outdoor fan, and an outdoor control board. The outdoor device includes: a control unit that controls the compressor and the outdoor fan; and a temperature detector that detects an ambient temperature of an electric component provided on the outdoor control board. The control unit, when the compressor is stopped, stops the outdoor fan and then determines whether a temperature detected by the temperature detector is equal to or higher than a threshold, and, when it is determined that the temperature detected by the temperature detector is equal to or higher than the threshold, operates the outdoor fan at a protective rotation number that is lower than a rotation number of the outdoor fan while the compressor is in operation so as to circulate air, thereby cooling the outdoor control board.
摘要翻译： 空调的室外机包括压缩机，室外风扇和室外控制板。 室外机包括：控制单元，控制压缩机和室外风扇; 以及温度检测器，其检测设置在室外控制板上的电气部件的环境温度。 控制单元在压缩机停止时停止室外风扇，然后判断由温度检测器检测到的温度是否在阈值以上，当判断为温度检测器检测到的温度相等时 达到或高于阈值时，在压缩机运转时使外部风扇的保护转数小于室外风扇的转数，使空气循环，从而冷却室外控制板。
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3.发明申请POWER CONVERSION DEVICE AND MOTOR DRIVE DEVICE INCLUDING POWER CONVERSION DEVICE 有权电力转换装置和包括电力转换装置的电动机驱动装置公开(公告)号：US20160094177A1
公开(公告)日：2016-03-31
申请号：US14782608
申请日：2013-04-12
发明人： Takuya SHIMOMUGI , Keisuke UEMURA , Koichi ARISAWA , Yosuke SHINOMOTO , Shigeo UMEHARA , Shinichiro URA , Makoto TANIKAWA
IPC分类号： H02P27/08 , H02M7/5395 , H02M7/501
CPC分类号： H02P27/085 , H02M7/501 , H02M7/53875 , H02M7/5395 , H02M2001/0009 , H02P2205/01
摘要： A power conversion device includes a power-supply shunt resistance that is provided between an inverter and the negative-voltage side of a DC power supply, and respective-phase lower-arm shunt resistances that are provided between the power-supply shunt resistance and respective-phase lower-arm switching elements. Respective-phase lower-arm voltages, that are respective voltages between the negative-voltage side of the DC power supply and connection points between the respective-phase lower-arm switching elements and the respective-phase lower-arm shunt resistances, are detected to calculate respective-phase currents that flow through a load device in accordance with detection values of the respective-phase lower-arm voltages, and to control a carrier frequency of a carrier signal, which serves as a reference frequency of each drive signal, according to a change in a specific control parameter A.
摘要翻译： 电力转换装置包括设置在逆变器和直流电源的负电压侧之间的电源分流电阻以及设置在电源分流电阻和相应的电源分流电阻之间的各自的相位下臂分流电阻 相位下臂开关元件。 检测直流电源的负电压侧和各相下臂开关元件与各相下臂分路电阻之间的连接点之间的各电压的各相下臂电压， 根据各相位下臂电压的检测值，计算流经负载装置的各相电流，并根据下述方式控制作为各驱动信号的基准频率的载波信号的载波频率 特定控制参数A的更改。
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4.发明申请POWER CONVERSION DEVICE, MOTOR DRIVE CONTROL DEVICE EQUIPPED WITH POWER CONVERSION DEVICE, COMPRESSOR AND BLOWER EQUIPPED WITH MOTOR DRIVE CONTROL DEVICE, AND AIR CONDITIONER EQUIPPED WITH COMPRESSOR OR BLOWER 有权功率转换装置，具有电力转换装置的电动机驱动控制装置，装有电动机驱动控制装置的压缩机和鼓风机以及装有压缩机或鼓风机的空气调节装置公开(公告)号：US20160087547A1
公开(公告)日：2016-03-24
申请号：US14891741
申请日：2014-05-26
CPC分类号： H02M7/06 , F24F11/85 , H02M1/12 , H02M1/4225 , H02M3/1584 , H02M5/458 , H02M7/08 , H02M7/53871 , H02M2001/0048 , H02M2003/1586 , H02P27/00 , Y02B70/126 , Y02B70/1491
摘要： A power conversion device is configured to have reactors and is configured to have chopper circuit units, connected in series, that chop the output of a rectifier configured to rectify an AC voltage from an AC power supply. The power conversion device includes: an AC switch disposed on a side closer to the AC power supply than the chopper circuit units; an AC reactor that is connected in parallel to the AC switch; and a switching control unit that stops the switching of the switching elements when the contact of the AC switch is open.
摘要翻译： 电力转换装置被配置为具有电抗器并被配置为具有串联连接的斩波电路单元，其将被配置为对交流电源进行交流电压整流的整流器的输出切断。 电力转换装置包括：交流开关，其设置在比斩波电路单元更靠近交流电源的一侧; 与AC开关并联连接的交流电抗器; 以及切换控制单元，当AC开关的触点断开时，停止开关元件的切换。
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5.发明申请POWER CONVERSION DEVICE, MOTOR DRIVE DEVICE INCLUDING POWER CONVERSION DEVICE, AIR BLOWER AND COMPRESSOR INCLUDING MOTOR DRIVE DEVICE, AND AIR CONDITIONER, REFRIGERATOR, AND FREEZER INCLUDING AIR BLOWER AND COMPRESSOR 有权动力转换装置，包括动力转换装置的电动驱动装置，包括电动驱动装置的空气鼓风机和压缩机，以及包括空气鼓风机和压缩机的空调器，制冷器和冷冻机公开(公告)号：US20160049896A1
公开(公告)日：2016-02-18
申请号：US14781064
申请日：2013-04-08
发明人： Koichi ARISAWA , Keisuke UEMURA , Takuya SHIMOMUGI , Yosuke SHINOMOTO , Shigeo UMEHARA , Shinichiro URA , Makoto TANIKAWA
CPC分类号： H02P29/027 , F04D25/06 , F04D25/08 , F25B31/02 , F25B49/025 , F25B2600/021 , H02H3/08 , H02H7/10 , H02H7/1227 , H02M1/32 , H02M7/537 , H02M7/53871 , H02M2001/0009 , H02P27/06 , Y02B30/741
摘要： The power conversion device includes a power-supply shunt resistance provided between an inverter and the negative-voltage side of a DC power supply, respective-phase lower-arm shunt resistances provided between the power-supply shunt resistance and respective-phase lower-arm switching elements, a first overcurrent detection unit performing overcurrent detection on a current that flows through the power-supply shunt resistance on the basis of a power-supply shunt-resistance voltage, and a second overcurrent detection unit performing overcurrent detection on each current that flows through the respective-phase lower-arm shunt resistances on the basis of respective-phase lower-arm voltages, wherein overcurrent detection is performed on each phase current using either one of the overcurrent detection result of the first overcurrent detection unit and the overcurrent detection result of the second overcurrent detection unit.
摘要翻译： 电力转换装置包括设置在逆变器和直流电源的负极侧之间的电源分流电阻，设置在电源分流电阻和各相下臂之间的相位下臂分流电阻 开关元件，第一过电流检测单元，其基于电源分流电压对流过所述电源分流电阻的电流进行过电流检测;以及第二过电流检测单元，对流过的每个电流进行过电流检测 基于各相下臂电压，通过各相下臂分流电阻，利用第一过电流检测单元的过电流检测结果和过电流检测结果中的任一个对各相电流进行过电流检测 的第二过电流检测单元。
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6.发明申请公开(公告)号：US20190229641A1
公开(公告)日：2019-07-25
申请号：US16325475
申请日：2016-10-13
摘要： A power conversion device includes: a rectifying unit rectifying an AC voltage output from an AC power supply; a booster circuit boosting an output voltage of the rectifying unit; a control unit causing the booster circuit to perform synchronous rectification; and a smoothing capacitor smoothing an output voltage of the booster circuit. The booster circuit is constituted by connecting a plurality of chopper circuits in parallel to each other, the chopper circuits each including an upper arm switching element and a lower arm switching element connected in series to a reactor connected to the rectifying unit, and the control unit generates a drive pulse causing the upper arm switching element to be turned on when a reverse current flows through the upper arm switching element.
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公开(公告)号：US20180091079A1
公开(公告)日：2018-03-29
申请号：US15565227
申请日：2015-08-04
发明人： Mitsuo KASHIMA , Shigeo UMEHARA
IPC分类号： H02P21/22 , H02M7/5395 , H02P5/74 , H02P25/022 , F25B49/02
CPC分类号： H02P21/22 , F25B49/025 , F25B2600/021 , H02M7/5395 , H02P5/74 , H02P21/0021 , H02P25/022
摘要： An inverter control device includes an inverter main circuit, a current detector, a voltage detector that detects a DC voltage between DC bus lines, and an inverter control unit that generates PWM signals to perform on/off control of a plurality of semiconductor switching elements respectively with a DC current and a DC voltage. The unit sets a carrier period of PWM signals to be 1/N times a calculation period in which the PWM signals are generated, performs detection of a DC current detected by the current detector in a 1/2 calculation period immediately before a calculation start timing for generating PWM signals, calculates an output voltage vector based on the detected DC current, and reflects PWM signals generated from the output voltage vector in one calculation period from a 1/2 calculation period after the calculation start timing to 3/2 control calculation periods after the same.
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公开(公告)号：US20170222572A1
公开(公告)日：2017-08-03
申请号：US15501528
申请日：2014-09-30
发明人： Takashi YAMAKAWA , Koichi ARISAWA , Yuji TAKAYAMA , Shigeo UMEHARA , Tomomi HIGASHIKAWA , Makoto TANIKAWA
CPC分类号： H02M7/06 , H02M1/08 , H02M1/12 , H02M1/42 , H02M1/4225 , H02M2001/0009 , H02M2001/0048
摘要： A power converting apparatus includes a rectifier that converts alternating-current power from an alternating-current power supply into direct-current power, a short-circuit unit that short-circuits the alternating-current power supply via a reactor, and a control unit that controls a short-circuit operation of the short-circuit unit. The control unit changes the number of times of the short-circuit operation during a half cycle of the alternating-current power supply on the basis of a load condition and sets a period from a start to an end of the short-circuit operation during the half cycle of the alternating-current power supply after the change of the number of times of the short-circuit operation to be different from a period from a start to an end of the short-circuit operation during the half cycle of the alternating-current power supply before the change of the number of times of the short-circuit operation.
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公开(公告)号：US20240102686A1
公开(公告)日：2024-03-28
申请号：US18255123
申请日：2021-02-18
发明人： Shigeo UMEHARA
摘要： An air conditioner includes an indoor and outdoor units connected by a power supply line, a common line, and a signal line. The indoor unit includes a first switch for connection between the power supply line and the signal line, and the outdoor unit includes: a second switch for connection between the power supply line and the outdoor unit; a smoother; and a third switch to connect the signal line and a resistor when in an off state, and be open when in an on state, the resister being connected to the second switch. When the outdoor unit starts, the first switch is turned on with the third switch in the off state to allow flow of an inrush current for charging the smoother and, after which, the second switch is turned on and subsequently the first switch is turned off and the third switch is turned on.
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公开(公告)号：US20220003434A1
公开(公告)日：2022-01-06
申请号：US17295478
申请日：2019-01-30
发明人： Shigeo UMEHARA
IPC分类号： F24F1/24
摘要： An outdoor unit includes a casing with an inlet formed in a back surface and an outlet formed in a front surface, a fan accommodated in the casing which draws in air from the inlet and blows out the air from the outlet, a compressor accommodated in the casing which compresses a refrigerant, a partition plate partitioning the interior of the casing into a machine room in which the compressor is installed and a blower room in which the fan is installed, a control board installed horizontally on the top of the partition plate across the machine room and the blower room, an electric component box covering the control board, a heat-generating component installed on the blower room side of the control board which drives the compressor and the fan, and a cooler connected to the heat-generating component and including a plurality of fins exposed from the electric component box.
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