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    • 1. 发明专利
    • Power feeder for freezer
    • 电冰箱供电器
    • JP2009247065A
    • 2009-10-22
    • JP2008088555
    • 2008-03-28
    • Daikin Ind Ltdダイキン工業株式会社
    • SARUWATARI HIROTAKAKATO MASAKAZUSHIMATANI KEISUKE
    • H02M7/48F25B49/02
    • PROBLEM TO BE SOLVED: To obtain an arrangement that outputs a proper fault signal while discriminating a high-voltage fault of a coolant circuit from an fault generated in a power feeder in the power feeder for feeding power to a compressor of a freezer. SOLUTION: When a fault is detected in an inverter circuit (3), a fault cause decision section (33) in a microcomputer (30) for inverter decides whether the cause of the fault is caused by interruption operation of a relay (18) in the inverter circuit (3) due to a high-voltage fault in the coolant circuit or caused by an fault generated in the inverter circuit (3). The fault cause decision section (33) is configured so that the decision of the fault generated in the inverter circuit (3) is delayed during a predetermined time (T) enabling decision of the high-voltage fault and if it decided that the fault is not caused by the high-voltage fault during the predetermined time (T), the fault is decided as an fault generated in the inverter circuit (3). COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了获得在识别冷却剂回路的高电压故障与供电给电源的电力供给器中产生的故障的同时输出适当的故障信号的装置,以将电力馈送到冷冻机的压缩机 。 解决方案:当在逆变器电路(3)中检测到故障时,用于逆变器电路(30)的故障原因判定部(33)判断故障原因是否由继电器的中断动作引起 18)由于冷却剂回路中的高电压故障或由逆变器电路(3)中产生的故障引起的,在逆变器电路(3)中。 故障原因判定部33被配置为使得在预定时间(T)期间延迟在逆变器电路(3)中产生的故障的判定,从而能够判定高压故障,并且如果故障原因确定部 不是在预定时间(T)期间由高电压故障引起的,故障被确定为在逆变器电路(3)中产生的故障。 版权所有(C)2010,JPO&INPIT
    • 2. 发明专利
    • Power supply circuit
    • 电源电路
    • JP2008253102A
    • 2008-10-16
    • JP2007094126
    • 2007-03-30
    • Daikin Ind Ltdダイキン工業株式会社
    • NAKAMOTO MAKOTOHASHIMOTO MASAFUMISHIMATANI KEISUKEYOSHIZAKA KEIICHIKATO MASAKAZU
    • H02M7/12H02M7/48
    • H02M7/2176H02M1/12H02M5/44
    • PROBLEM TO BE SOLVED: To achieve high accuracy of PAM (Pulse Amplitude Modulation) control. SOLUTION: A power supply circuit includes a switching element (S) for short-circuiting an output power of a diode bridge circuit (12), a zero cross detection section (5a) for detecting a point at which input voltage is not more than a reference value, a timer section (5d) for starting count upon detection, and a PAM waveform output section (5c) for allowing the switching element (S) to switch at a predetermined timing by using the count so that the input current may have a waveform of a sinusoidal wave. The circuit includes a correcting section (5e) for correcting an initial value of the count of the timer section (5d) for a difference between a detection interval of the zero cross detection section (5a) and a mean value so far if the difference occurs. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:实现PAM(脉冲幅度调制)控制的高精度。 解决方案:电源电路包括用于短路二极管电桥电路(12)的输出功率的开关元件(S),用于检测输入电压不是的点的零交叉检测部分(5a) 超过参考值,用于在检测时启动计数的定时器部分(5d)和用于允许开关元件(S)通过使用计数在预定定时切换的PAM波形输出部分(5c),使得输入电流 可以具有正弦波的波形。 该电路包括校正部分(5e),用于校正零交叉检测部分(5a)的检测间隔与迄今为止出现差异的平均值之间的定时器部分(5d)的计数的初始值 。 版权所有(C)2009,JPO&INPIT
    • 3. 发明专利
    • Power supply device
    • 电源设备
    • JP2008253060A
    • 2008-10-16
    • JP2007091435
    • 2007-03-30
    • Daikin Ind Ltdダイキン工業株式会社
    • KATO MASAKAZUNAKAMOTO MAKOTOSHIMATANI KEISUKEYOSHIZAKA KEIICHIHASHIMOTO MASAFUMI
    • H02M7/12H02M7/10
    • PROBLEM TO BE SOLVED: To provide a power supply device capable of preventing the stop of a load connected to the power supply device, even if zero cross interruption pulse an PAM interruption pulse are generated.
      SOLUTION: The power supply device converts AC power into DC power, and supplies the DC power to a load (40). The power supply device includes a control section, a rectifying circuit (10), a smoothing circuit (20) and a switch (SW). The control section sets not less than a first time minimally required for calculation of a current value of AC current between the zero cross interruption pulse and the PAM interruption pulse.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供一种能够防止连接到电源装置的负载的停止的电源装置,即使产生了交叉中断脉冲,也产生PAM中断脉冲。

      解决方案:电源设备将交流电源转换为直流电源,并将直流电源提供给负载(40)。 电源装置包括控制部分,整流电路(10),平滑电路(20)和开关(SW)。 控制部设定不少于计算零交叉中断脉冲和PAM中断脉冲之间的交流电流的当前值所要求的第一时间。 版权所有(C)2009,JPO&INPIT

    • 4. 发明专利
    • Power supply apparatus
    • 电源设备
    • JP2010035311A
    • 2010-02-12
    • JP2008193834
    • 2008-07-28
    • Daikin Ind Ltdダイキン工業株式会社
    • KATO MASAKAZUNAKAMURA NOBUHIROSHIMATANI KEISUKETAKAYAMA TOSHIHIKOMIZOBE HIRONOBU
    • H02M7/48
    • PROBLEM TO BE SOLVED: To properly set a limit value for limiting a current so that it may not be in an overcurrent detection range. SOLUTION: A power supply apparatus includes a power converting circuit (10), which has an inverter circuit (12), an overcurrent detecting protective circuit (16), which detects the overcurrent of the inverter circuit (12) and stops the drive of the inverter circuit (12), and a drive (23), which limits the input current of the inverter circuit (12) so that it does not surpass a limit value that is set to a lower value than that in the overcurrent detection range of the overcurrent detecting protective circuit (16). Further, the apparatus includes a limit value shifter (22), which shifts the present limit value downward each time the inverter circuit (12) stops its drive by the overcurrent detecting protective circuit (16), and shifts the present limit value upward when the inverter circuit (12) stops after being driven for a specified time T or over. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了适当地设置用于限制电流的极限值,使得其可能不处于过电流检测范围。 电源装置包括电源转换电路(10),其具有逆变器电路(12),过电流检测保护电路(16),其检测逆变器电路(12)的过电流并停止 驱动逆变器电路(12)的驱动器和驱动器(23),其限制逆变器电路(12)的输入电流,使其不超过设定为比过电流检测中的值低的限制值 过电流检测保护电路(16)的范围。 此外,该装置包括限制值移位器(22),每当逆变器电路(12)由过电流检测保护电路(16)停止其驱动时,使当前极限值向下移动,当该极限值向上移动时, 变频器电路(12)在被驱动指定时间T或以上后停止。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Power supply circuit and its pam control method
    • 电源电路及其控制方法
    • JP2010022116A
    • 2010-01-28
    • JP2008179369
    • 2008-07-09
    • Daikin Ind Ltdダイキン工業株式会社
    • NAKAMOTO MAKOTOHASHIMOTO MASAFUMISHIMATANI KEISUKEYOSHIZAKA KEIICHIKATO MASAKAZU
    • H02M7/10H02M7/12H02M7/48H02P23/00
    • PROBLEM TO BE SOLVED: To make a capacitor compact in size by preventing an increase of a ripple voltage of the capacitor in a smoothing circuit, and to reduce the cost of the capacitor, in a power supply circuit which performs PAM control by using a switching element. SOLUTION: The power supply circuit includes a bridge circuit (12) of diodes (D1 to D4) for commutating AC power, and the two capacitors (C1, C2) connected in series to each other, and also includes the smoothing circuit (13) connected to the output side of the bridge circuit (12), and a PAM control part (15) which switches the switching element (S) at prescribed timing. The PAM control part (15) includes a phase difference detection part (15d) which detects the displacement of a phase of a PAM waveform on the basis of a PAM current flowing to the switching element (S), and a phase correction part (15e) which corrects a phase of the PAM waveform so that an input current approximates a sine wave. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了通过在平滑电路中防止电容器的纹波电压的增加来使电容器小型化,并且为了降低电容器的成本,在执行PAM控制的电源电路中 使用开关元件。 解决方案:电源电路包括用于交流电力的二极管(D1至D4)的桥接电路(12)和彼此串联连接的两个电容器(C1,C2),并且还包括平滑电路 (13),和连接到桥式电路(12)的输出侧的PAM控制部(15),其在规定的时刻切换开关元件(S)。 PAM控制部(15)具有基于流过开关元件(S)的PAM电流来检测PAM波形的相位的相位差检测部(15d),相位校正部(15e ),其校正PAM波形的相位,使得输入电流接近正弦波。 版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • Power supply circuit and its pam control method
    • 电源电路及其控制方法
    • JP2008253094A
    • 2008-10-16
    • JP2007093584
    • 2007-03-30
    • Daikin Ind Ltdダイキン工業株式会社
    • NAKAMOTO MAKOTOHASHIMOTO MASAFUMISHIMATANI KEISUKEYOSHIZAKA KEIICHIKATO MASAKAZU
    • H02M7/12
    • H02M1/4208H02M7/217Y02B70/126
    • PROBLEM TO BE SOLVED: To provide a power supply circuit for executing PAM (power amplitude modulation) control by using a switching element, which achieves compaction and cost reduction of a capacitor by preventing an increase in a ripple voltage of a capacitor in a smoothing circuit. SOLUTION: The power supply circuit includes a bridge circuit (12) of diodes (D1-D4) for rectifying AC power, and two capacitors (C1, C2) connected in series to each other. The power supply circuit includes a smoothing circuit (13) connected to an output side of the bridge circuit (12) and a PAM control section (15) for switching a switching element (S) at a predetermined timing. The PAM circuit (15) includes a phase difference detecting circuit (15d) for detecting the deviation in phase of a PAM waveform on the basis of a change in voltage difference of the two capacitors (C1, C2), and a phase correcting section (15e) for correcting the phase of the PAM waveform so that an input current may approximate to a sinusoidal wave. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种用于通过使用开关元件执行PAM(功率幅度调制)控制的电源电路,其通过防止电容器的纹波电压的增加来实现电容器的压缩和降低成本 平滑电路。 解决方案:电源电路包括用于整流交流电的二极管(D1-D4)的桥接电路(12)和彼此串联连接的两个电容器(C1,C2)。 电源电路包括连接到桥接电路(12)的输出侧的平滑电路(13)和用于在预定定时切换开关元件(S)的PAM控制部(15)。 PAM电路(15)包括:相位差检测电路(15d),用于根据两个电容器(C1,C2)的电压差的变化来检测PAM波形的相位偏差;以及相位校正部( 15e),用于校正PAM波形的相位,使得输入电流可以接近正弦波。 版权所有(C)2009,JPO&INPIT
    • 7. 发明专利
    • Operating method of invertor compressor and compressor driving device
    • 逆变器压缩机和压缩机驱动装置的运行方法
    • JP2008170017A
    • 2008-07-24
    • JP2007001010
    • 2007-01-09
    • Daikin Ind Ltdダイキン工業株式会社
    • SHIMATANI KEISUKEKATO MASAKAZUMAEDA HIROHITOUKAI TAKEOMIKITANO NOBUKIMIZOBE HIRONOBU
    • F25B1/00F04B39/00F24F11/02H02M7/00H02P25/04H02P27/06
    • PROBLEM TO BE SOLVED: To provide an operating method of an invertor compressor and a compressor driving device, capable of reducing leaked current. SOLUTION: A charging operation of a boot capacitor 407 functioned as a motion power source of a high arm-side switch 401 disposed on an invertor 4 is executed every stop of motion of a motor M1. A liquid discharging operation executed prior to the ordinary operation, is executed by using carrier frequency lower than a value in an ordinary operation to reduce leaked current. In this invention, the carrier frequency is changed to a value of the ordinary operation to move into the ordinary operation without stopping the motion of the motor M1 when the liquid discharge operation achieves its target. Accordingly, the charging motion of the boot capacitor executed between the liquid discharging operation and the ordinary operation can be omitted, and the leaked current can be reduced. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供能够减少泄漏电流的逆变器压缩机和压缩机驱动装置的操作方法。 解决方案:电动机M1的每个停止运动都执行用作设置在逆变器4上的高臂侧开关401的运动电源的起动电动机407的充电操作。 在正常操作之前执行的液体排放操作通过使用低于普通操作中的值的载波频率来执行,以减少泄漏电流。 在本发明中,当液体排出操作达到目标时,载波频率被改变为常规操作的值以移动到普通操作中而不停止电动机M1的运动。 因此,可以省略在液体排出操作和普通操作之间执行的引导电容器的充电运动,并且可以减少漏电流。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Air conditioner
    • 冷气机
    • JP2008249255A
    • 2008-10-16
    • JP2007091715
    • 2007-03-30
    • Daikin Ind Ltdダイキン工業株式会社
    • KATO MASAKAZUNAKAMOTO MAKOTOSHIMATANI KEISUKEYOSHIZAKA KEIICHIHASHIMOTO MASAFUMI
    • F24F11/02H02P29/00
    • PROBLEM TO BE SOLVED: To provide an air conditioner capable of efficiently storing error log in a storage part while saving a volume of the storage part. SOLUTION: A region R3 includes a fixed storage region R31 for storing detailed information of first error log created first to the detailed information of fifth error log, and an update storage region R32 for storing detailed information created for sixth error log or later. A control portion 20 updates the oldest detailed information among the detailed information written in the update storage region R32 by the newly-created detailed information of error log, when the newly-created detailed information of error log is written in a state that no free-space is found in the update storage region R32. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够有效地将存储部件中的错误日志存储在一起,同时节省存储部件的体积的空调。 解决方案:区域R3包括用于存储首先创建的第一错误日志的详细信息到第五错误日志的详细信息的固定存储区域R31和用于存储为第六错误日志创建的详细信息的更新存储区域R32 。 控制部分20通过新创建的错误日志的详细信息来更新记录在更新存储区域R32中的详细信息中的最早的详细信息,当新创建的错误日志的详细信息被写入不存在空闲状态的状态时, 在更新存储区域R32中找到空格。 版权所有(C)2009,JPO&INPIT