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11. 发明专利

JP2012165643A Electric power conversion apparatus 有权
标题翻译：电力转换装置
公开(公告)号：JP2012165643A
公开(公告)日：2012-08-30
申请号：JP2012092580
申请日：2012-04-16
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： IBORI SATOSHI , HAMANO KOJI , MO KOMEI , KAMEZAWA TOMOYA , HIROTA MASAYUKI , HIRAGA MASAHIRO
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide an electric power conversion apparatus which reduces the size while reducing the temperature increase by adequately obtaining cooling effect by a cooling fan.SOLUTION: An electric power conversion apparatus includes: a casing 2 covering a cooling fin 1 cooling a power semiconductor; a main circuit board 7 including a driver circuit driving the power semiconductor; and a cover 3 covering the main circuit board 7. The electric power conversion apparatus further includes first vent holes 22 provided at a position of the main circuit board 7, which are located above air intake ports A2 provided on the cover 3, and second vent holes A3, which are provided below the first vent holes 22 and the cooling fin 1. A cooling fan allows the air from the second vent holes to flow to the cooling fin 1.
摘要翻译：要解决的问题：提供一种电力转换装置，通过充分获得冷却风扇的冷却效果，减小了温度上升的尺寸。解决方案：电力转换装置包括：壳体2，覆盖冷却功率半导体的冷却片1; 包括驱动功率半导体的驱动电路的主电路板7; 以及覆盖主电路板7的盖3.电力转换装置还包括设置在主电路板7的位于盖3上的进气口A2上方的第一通气孔22和第二通风口孔A3设置在第一通气孔22和冷却翅片1的下方。冷却风扇允许来自第二通气孔的空气流到冷却翅片1.版权所有（C）2012，JPO＆INPIT

12. 发明专利

JP2007325374A Power conversion device 有权
标题翻译：电源转换器件
公开(公告)号：JP2007325374A
公开(公告)日：2007-12-13
申请号：JP2006150874
申请日：2006-05-31
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： HIROTA MASAYUKI , IBORI SATOSHI , KAMEZAWA TOMOYA , MO KOMEI , HIRAGA MASAHIRO
IPC分类号： H02M7/48
CPC分类号： H02M7/003 , H02M1/36 , H05K7/20918
摘要： PROBLEM TO BE SOLVED: To provide a power conversion device whose cooling fins are simplified and miniaturized and whose reliability is further improved. SOLUTION: It is configured to make it possible to improve the cooling efficiency of the cooling fins, by limiting the air inflow side, which is the top end of the fin, in order to make much air flow near the connection portion of the base surface of the cooling fins of good fin efficiency to the fins. By providing this limiting member, air and atmosphere that flow in are made to flow into the fins near the base surface. Furthermore, by providing the limiting member, the area of a portion into which air and atmosphere flow in is limited, too, so that the flow speed of air and atmosphere becomes faster. These effects and the like make it possible to improve the cooling efficiency of the cooling fins better than in the conventional device. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种其冷却翅片简化并小型化并且其可靠性进一步提高的电力转换装置。解决方案：通过限制作为翅片顶端的空气流入侧，为了在冷却翅片的连接部分附近形成大量气流，能够提高散热片的冷却效率散热鳍片的基面对散热片效率好。通过设置该限制构件，使流入的空气和大气流入基面附近的翅片。此外，通过设置限制部件，空气和大气流入的部分的面积也受到限制，使得空气和大气的流速变得更快。这些效果等使得可以比常规装置更好地提高散热片的冷却效率。版权所有（C）2008，JPO＆INPIT

13. 发明专利

JP2007288955A Power conversion device 审中-公开
标题翻译：电源转换器件
公开(公告)号：JP2007288955A
公开(公告)日：2007-11-01
申请号：JP2006115148
申请日：2006-04-19
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： IBORI SATOSHI , KAMEZAWA TOMOYA , MO KOMEI , HIROTA MASAYUKI , HIRAGA MASAHIRO
IPC分类号： H02M7/48 , H02M7/06
摘要： PROBLEM TO BE SOLVED: To solve the problem, wherein it is difficult to quantitatively predict the service life of a smoothing electrolytic capacitor, because the ambient temperature of a power conversion device varies during the year and the ambient temperature varies by a large amount, depending on the installation environment in the user, even though it is known that the service life of the smoothing electrolytic capacitor becomes shorter, as the ambient temperature of the power conversion device becomes higher, because the smoothing electrolytic capacitor mounted in a general inverter, which is generally the power conversion device, is a component having a certain life time. SOLUTION: This power conversion device includes a device that consumes a DC voltage from DC intermediate circuit DC portion, having the smoothing electrolytic capacitor which smoothes the output DC voltage of a power rectifier in the power conversion device. By measuring the time constant at discharge of the DC voltage, electrostatic capacity in the smoothing electrolytic capacitor is calculated, and the remaining lifetime of the smoothing electrolytic capacitor can be displayed. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题为了解决难以定量预测平滑电解电容器的使用寿命的问题，因为电力转换装置的环境温度在一年中变化，并且环境温度变化很大即使知道平滑电解电容器的使用寿命变短，随着电力转换装置的环境温度变高，由于安装在一般逆变器中的平滑电解电容器，所以取决于用户的安装环境通常是功率转换装置，是具有一定寿命的部件。解决方案：该电力转换装置包括从直流中间电路DC部分消耗直流电压的装置，具有平滑电解电容器，其平滑电力转换装置中的功率整流器的输出直流电压。通过测量直流电压放电的时间常数，计算平滑电解电容器中的静电电容，并且可以显示平滑电解电容器的剩余寿命。版权所有（C）2008，JPO＆INPIT

14. 发明专利

JP2007185018A Power conversion equipment 审中-公开
标题翻译：电力转换设备
公开(公告)号：JP2007185018A
公开(公告)日：2007-07-19
申请号：JP2006000445
申请日：2006-01-05
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： MO KOMEI , KAMEZAWA TOMOYA , IBORI SATOSHI , KAZUSA HIROYUKI , HIROTA MASAYUKI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide power conversion equipment which can cope with downsizing/higher performance/higher function by being able to extend the power supply time to a control circuit without enlarging a smoothing circuit and an internal control power circuit. SOLUTION: The supply of power to a cooling fan is intercepted by switching off a switch 9 between a control power source 1 and a cooling fan 4 by microcomputer control when it detects the voltage based on the break of input power. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够通过在不放大平滑电路和内部控制电源电路的情况下将电源时间扩展到控制电路来提供小型化/更高性能/更高功能的电力转换设备。
解决方案：当通过微机控制在基于输入功率的断开检测到电压时，通过关闭控制电源1和冷却风扇4之间的开关9来切断对冷却风扇的供电。版权所有（C）2007，JPO＆INPIT

15. 发明专利

JP2007017187A Phase interruption detection circuit 有权
标题翻译：相位中断检测电路
公开(公告)号：JP2007017187A
公开(公告)日：2007-01-25
申请号：JP2005196384
申请日：2005-07-05
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： KAMEZAWA TOMOYA , MO KOMEI , TOKASHIKI MUTSUO , IBORI SATOSHI
IPC分类号： G01R29/18 , H02H3/253 , H02H3/34 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a phase interruption detection circuit capable of reliably detecting phase interruptions while suppressing the number of expensive parts.
SOLUTION: Three diodes 3-5 star-connected to a path preceding to the input of power lines U, V, W from a three-phase AC power supply 1 to a power rectification part 2 are provided and a voltage of each phase of three-phase input is half-wave rectified, synthesized, and extracted at a neutral point Nd. Three resistors 8-10 star-connected to the same power supply lines U, V, W are provided to form a neutral point Nr. A light emitting diode on the input side of a photo-coupler 7 is connected between the neutral points Nd and Nr. Phase interruptions of the power lines U, V, W are detected by turning on and off a photo-transistor on the output side of the photo-coupler 7.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够可靠地检测相位中断的相位中断检测电路，同时抑制昂贵部件的数量。
解决方案：提供从三相交流电源1到电力整流部分2的电力线U，V，W输入之前的路径三星形连接的二极管3-5，并且每个三相输入的相位在中性点Nd处进行半波整流，合成和提取。提供与连接到相同电源线U，V，W上的三角电阻8-10，以形成中性点Nr。在光电耦合器7的输入侧的发光二极管连接在中性点Nd和Nr之间。通过打开和关闭光电耦合器7的输出侧的光电晶体管来检测电源线U，V，W的相位中断。（C）2007，JPO＆INPIT

16. 发明专利

JP2013233081A Electric power conversion apparatus 有权
标题翻译：电力转换装置
公开(公告)号：JP2013233081A
公开(公告)日：2013-11-14
申请号：JP2013137702
申请日：2013-07-01
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： IBORI SATOSHI , HAMANO KOJI , MO KOMEI , KAMEZAWA TOMOYA , HIROTA MASAYUKI , HIRAGA MASAHIRO
IPC分类号： H02M7/48 , H05K7/20
摘要： PROBLEM TO BE SOLVED: To sufficiently attain cooling effects by a cooling fan and thereby achieve the downsizing of an electric power conversion apparatus while reducing the temperature rise in the electric power conversion apparatus.SOLUTION: An electric power conversion apparatus includes: a casing 2 covering a cooling fin 1 cooling a power semiconductor; a main circuit board 7 including a driver circuit driving the power semiconductor; a cover covering the main circuit board; a first vent hole 22 provided at the main circuit board so as to be located at the upper side relative to an intake port provided at the cover; and a second vent hole A3 provided at the lower side relative to the first vent hole and the cooling fin. Air from the second vent hole is flowed to the cooling fin by a cooling fan.
摘要翻译：要解决的问题：为了充分获得冷却风扇的冷却效果，从而在降低电力转换装置的温度升高的同时实现电力转换装置的小型化。电力转换装置包括：壳体2，其覆盖冷却功率半导体的散热片1; 包括驱动功率半导体的驱动电路的主电路板7; 覆盖主电路板的盖子; 第一通气孔22，设置在主电路板处，以相对于设置在盖子处的进气口位于上侧; 以及设置在相对于第一通气孔和冷却翅片的下侧的第二通气孔A3。来自第二通气孔的空气通过冷却风扇流到冷却片。

17. 发明专利

JP2012070497A Inverter device and control method 有权
标题翻译：逆变器装置和控制方法
公开(公告)号：JP2012070497A
公开(公告)日：2012-04-05
申请号：JP2010211558
申请日：2010-09-22
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： KAMEZAWA TOMOYA , TOKASHIKI MUTSUO
IPC分类号： H02M7/48 , H02P27/06
摘要： PROBLEM TO BE SOLVED: To minimize excessive current flow due to pulsation of the output current from an inverter device for driving a three-phase induction motor when a transition is made from three-phase PWM control where three-phases are switched entirely to a two-phase PWM control where switching of one phase is brought to rest.SOLUTION: In the inverter device which inverts a DC voltage to an AC voltage of an arbitrary frequency by PWM control, phase voltage waveforms calculated in a phase voltage waveform generation processing block 201 for three-phase PWM where the output phase voltage waveform of the inverter is calculated from an output frequency command and an output voltage command, a phase voltage waveform generation processing block 202 for two-phase PWM, and a voltage waveform transient processing block 203 for three-phase/two-phase transition are switched in a PWM output block 205 based on a signal from a switching determination processing block 204, and output to a PWM output generation block 207 thus generating a PWM wave.
摘要翻译：要解决的问题：为了使三相异步电动机的驱动三相异步电机的三相PWM控制转换时的输出电流的脉动导致的过大的电流流过最小化到两相PWM控制，其中一相的切换被放置。解决方案：在通过PWM控制将DC电压转换为任意频率的AC电压的逆变器装置中，在用于三相PWM的相电压波形生成处理块201中计算出的相电压波形，其中输出相电压波形根据输出频率指令和输出电压指令来计算逆变器，用于两相PWM的相电压波形生成处理块202和用于三相/两相转换的电压波形瞬态处理块203被切换基于来自切换确定处理块204的信号的PWM输出块205，并且输出到PWM输出生成块207，从而产生PWM波。版权所有（C）2012，JPO＆INPIT

18. 发明专利

JP2010154754A Power conversion apparatus 有权
标题翻译：功率转换装置
公开(公告)号：JP2010154754A
公开(公告)日：2010-07-08
申请号：JP2010086662
申请日：2010-04-05
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： HIROTA MASAYUKI , IBORI SATOSHI , KAMEZAWA TOMOYA , MO KOMEI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To supply a technique and product, which achieves device miniaturization by reducing the switching loss of elements of a reverse conversion device while miniaturizing and simplifying a snubber circuit of a power conversion device. SOLUTION: An inductance is reduced by enlarging the form of a bus bars which connects the P and N phases of the reverse conversion device and the positive or the negative electrode of a smoothing capacitor, and the form of a wiring bus bar which connects an intermediate layer of capacitors connected in series, by enlarging an area where they overlap each other, and by making the currents flow in the opposite directions to each other. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过减小逆变换装置的元件的开关损耗而实现装置小型化的技术和产品，同时使电力转换装置的缓冲电路小型化并简化。
解决方案：通过扩大连接反向转换装置的P相和N相以及平滑电容器的正极或负极的汇流条的形式以及布线母线的形式来减小电感，通过扩大彼此重叠的区域，并使电流彼此相反的方向连接串联连接的电容器的中间层。版权所有（C）2010，JPO＆INPIT

19. 发明专利

JP2009033910A Power conversion apparatus 有权
标题翻译：功率转换装置
公开(公告)号：JP2009033910A
公开(公告)日：2009-02-12
申请号：JP2007196892
申请日：2007-07-30
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： IBORI SATOSHI , HAMANO KOJI , MO KOMEI , KAMEZAWA TOMOYA , HIROTA MASAYUKI , HIRAGA MASAHIRO
IPC分类号： H02M7/48 , H05K7/20
CPC分类号： H02M7/003 , H01L23/4006 , H01L23/467 , H01L23/642 , H01L25/072 , H01L2924/0002 , H05K7/20909 , H01L2924/00
摘要： PROBLEM TO BE SOLVED: To suppress a temperature rise and reduce a device size by sufficiently obtaining a cooling effect by a cooling fan in a power converter. SOLUTION: In this power converter including a casing which covers a cooling fin for cooling a power semiconductor, a main circuit board having a driver circuit which drives the power semiconductor, and a cover which covers the main circuit board, the first ventilation port which is provided at the main circuit board located upper than a suction port provided at the cover and the second ventilation port which is located lower than the first ventilation port and lower than the cooling fin are provided to flow air from the second ventilation port to the cooling fin by the cooling fan. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过充分获得功率转换器中的冷却风扇的冷却效果来抑制温度上升并减小装置尺寸。解决方案：在该电力转换器中，包括覆盖用于冷却功率半导体的冷却翅片的壳体，具有驱动功率半导体的驱动电路的主电路板和覆盖主电路板的盖，第一通风设置在位于比设置在盖子处的吸入口上方的主电路板处的端口和位于比第一通风口低并且低于冷却翅片的第二通风口的端口设置成将空气从第二通风口流动到散热片由冷却风扇组成。版权所有（C）2009，JPO＆INPIT

20. 发明专利

JP2007202296A Power converter 审中-公开
标题翻译：电源转换器
公开(公告)号：JP2007202296A
公开(公告)日：2007-08-09
申请号：JP2006017606
申请日：2006-01-26
申请人： Hitachi Industrial Equipment Systems Co Ltd , 株式会社日立産機システム
发明人： IBORI SATOSHI , KAZUSA HIROYUKI , KAMEZAWA TOMOYA , TOMITA HIROYUKI , HIROTA MASAYUKI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a power converter which can judge the factor of overheating when a fault occurs. SOLUTION: The power converter comprises modular main elements 1 and 3 in a power semiconductor 13, a temperature detection circuit 11 for detecting overheat temperature of the power semiconductor, and a fan 6 for cooling the power semiconductor 13 by supplying air to a cooling fin 10 mounting the power semiconductor 13. The power converter supplies AC power of variable voltage variable frequency to an AC motor and indicates fault when the AC motor is faulty. The power converter is further provided with a circuit for detecting the number of revolutions of the cooling fan 6, and indicates fault such that the factor of temperature overheat can be judged using an overheat detection signal outputted from the temperature detection circuit 11 and a number of revolutions signal outputted from the number of revolutions detection circuit. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在发生故障时判断过热因素的功率转换器。电源转换器包括功率半导体13中的模块化主要元件1和3，用于检测功率半导体的过热温度的温度检测电路11和用于通过向空气供应空气来冷却功率半导体13的风扇6 安装功率半导体13的冷却翅片10.电力变换器向交流电动机提供可变电压可变频率的交流电力，并且当交流电动机故障时指示故障。功率转换器还设置有用于检测冷却风扇6的转数的电路，并且指示故障，使得可以使用从温度检测电路11输出的过热检测信号来判断温度过热的因素，并且多个从转数检测电路输出的转数信号。版权所有（C）2007，JPO＆INPIT

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