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1. 发明授权

EP3312985B1 INVERTER DEVICE 有权
公开(公告)号：EP3312985B1
公开(公告)日：2019-08-28
申请号：EP16811519.4
申请日：2016-06-08
申请人： Daikin Industries, Ltd.
发明人： DOI, Hirotaka , DOUMAE, Hiroshi , KOYAMA, Takuji , TAKEZOE, Michiya , KOTERA, Keito , YAMAMOTO, Masahiro , KOYAMA, Yoshitsugu , KAGIMURA, Sumio
IPC分类号： G01R1/20 , G01R31/42 , H02M7/48 , H01C13/00

2. 发明公开

EP4412069A1 POWER CONVERSION DEVICE AND REFRIGERATION DEVICE 审中-公开
公开(公告)号：EP4412069A1
公开(公告)日：2024-08-07
申请号：EP22876374.4
申请日：2022-09-28
申请人： Daikin Industries, Ltd.
发明人： KOYAMA, Yoshitsugu , OKUZONO, Kodai , KONO, Masaki , KAWASHIMA, Reiji , DOI, Hirotaka
IPC分类号： H02M1/12 , H02M7/48
CPC分类号： H02M1/12 , H02M7/48
摘要： A power conversion device includes: a power converter using a switching element; and a noise reduction circuit, the noise reduction circuit including: a noise detector configured to detect a common mode noise current or a common mode noise voltage generated in a power line in response to operation of the power converter; an amplifier configured to generate a compensation current based on a detection signal from the noise detector; and an output circuit configured to output the compensation current generated by the amplifier to the power line. A power conversion board carrying the power converter and a canceler board carrying the amplifier are different boards.

3. 发明公开

EP4224654A1 POWER CONVERSION DEVICE 审中-实审
公开(公告)号：EP4224654A1
公开(公告)日：2023-08-09
申请号：EP21875768.0
申请日：2021-09-30
申请人： Daikin Industries, Ltd.
发明人： FUJIWARA, Masahide , ITOU, Taku , KOTERA, Keito , OGURI, Akihiko , KOUNO, Masaki , KAWASHIMA, Reiji , HIRAOKA, Nobuyasu , KOYAMA, Yoshitsugu , KOYAMA, Kenji , YAMAMOTO, Masahiro
IPC分类号： H02J3/01 , H02M1/12 , H02M7/12 , H02M7/48
摘要： A problem to be solved by the present disclosure is integration of an active filter circuit and an inverter circuit into one board. In a power conversion device (10), an active filter circuit (60) and an inverter circuit (40) are mounted on one printed wiring board (70), so that the power conversion device (10) can be reduced in size, weight, and cost.

4. 发明公开

EP4412075A1 NOISE REDUCTION CIRCUIT, LOAD SYSTEM, POWER CONVERSION DEVICE, AND REFRIGERATION DEVICE 审中-公开
公开(公告)号：EP4412075A1
公开(公告)日：2024-08-07
申请号：EP22876558.2
申请日：2022-09-30
申请人： DAIKIN INDUSTRIES, LTD.
发明人： OKUZONO, Kodai , KOYAMA, Yoshitsugu , KONO, Masaki , DOI, Hirotaka , KAWASHIMA, Reiji
IPC分类号： H02M7/48 , H02M1/12
CPC分类号： F25B49/02 , H02M1/12 , H02M7/48 , H03H7/09
摘要： [Problem] To suppress the disadvantage that occurs with regard to the flow of a compensation current when a voltage of a power source of a noise canceller is lower than a DC link voltage of a power converter.
[Solving means] A noise reduction circuitry includes a noise canceller that injects a compensation current into a power line or an earth to reduce a common mode noise current flowing to an alternating-current power source from a power converter including a switching element connected to the alternating-current power source through the power line and the earth, and a direct-current power source that supplies power to the noise canceller, and a voltage Vcc of the direct-current power source is less than 2/3 of a peak value of a DC link voltage of the power converter, and when a connection point between the power line and a path connecting the power line and the earth via the noise canceller is a first connection point, and a connection point between the path and the earth is a second connection point, when the compensated common mode noise current whose positive direction is a direction of flow from the alternating-current power source side to the first connection point and flowing through the power line on a side closer to the alternating-current power source than the first connection point is Ig(t), when the compensation current whose positive direction is a direction of flow from the alternating-current power source side to the first connection point and flowing through the path is Io(t), when an impedance of the path is Z 1, when an impedance on a side closer to the alternating-current power source than the first connection point and the second connection point is Z2, and when V(t) = 2 * (Z1 * Io(t) - Z2 * Ig(t)), the voltage Vcc is set to be a maximum value of a quasi-peak value of V(t) or √2 times or more an effective value of V(t).

5. 发明授权

EP2293329B1 REFRIGERATION APPARATUS 有权
公开(公告)号：EP2293329B1
公开(公告)日：2018-01-24
申请号：EP09762216.1
申请日：2009-05-14
申请人： Daikin Industries, Ltd.
发明人： KOYAMA, Yoshitsugu
IPC分类号： H01L23/427 , H01F17/06 , H05K7/20 , H05K9/00 , F25B31/00 , H01L23/40 , H01L23/66 , H01L23/34
CPC分类号： H05K7/20936 , F25B31/006 , H01F2017/065 , H01L23/34 , H01L23/4006 , H01L23/427 , H01L23/66 , H01L2023/405 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： A refrigeration apparatus includes: an electrical circuit (10) including a power device (14); a refrigerant jacket (30) which is thermally connected to the power device (14), and in which a refrigerant for a refrigeration cycle flows; a refrigerant pipe (20) which carries the refrigerant flowing in the refrigerant jacket (30), and forms a current path (20a, 20b) for grounding the refrigerant jacket (30); and a magnetic body (90) which is attached to the current path (20a, 20b), and generates a predetermined impedance in the current path (20a, 20b).

6. 发明公开

EP3312985A1 INVERTER DEVICE 有权
标题翻译：变频器装置
公开(公告)号：EP3312985A1
公开(公告)日：2018-04-25
申请号：EP16811519.4
申请日：2016-06-08
申请人： Daikin Industries, Ltd.
发明人： DOI, Hirotaka , DOUMAE, Hiroshi , KOYAMA, Takuji , TAKEZOE, Michiya , KOTERA, Keito , YAMAMOTO, Masahiro , KOYAMA, Yoshitsugu , KAGIMURA, Sumio
IPC分类号： H02M7/48 , H01C13/00
CPC分类号： H02M1/34 , G01R1/203 , G01R31/42 , H01C13/00 , H02M7/066 , H02M7/48 , H02M2001/0009 , H02M2001/348 , H05K2201/09227
摘要： It is a problem of the present invention to provide an inverter device whose current detection precision is improved by checking variations in the distribution of current flowing in a shunt resistor without using a separate member. In a printed board (40) of an inverter device (20), a first conductive pattern component (51) connected to a shunt resistor (31) includes a first central region (510), a first right-side protruding region (511) that juts out on the right side from the first central region (510), and a first left-side protruding region (512) that juts out on the left side from the first central region (510). The ratio SA2/SA1 of the area SA2 of the first left-side protruding region (512) to the area SA1 of the first right-side protruding region (511) is set in the range of 0.6 to 1.6, whereby variations in the distribution of current flowing in the shunt resistor (31) can be checked.
摘要翻译：本发明的课题在于提供一种逆变器装置，该逆变器装置的电流检测精度通过检查分流电阻器中流动的电流的分布的变化来提高，而不使用其他部件。在逆变器装置（20）的印刷基板（40）中，与分流电阻（31）连接的第一导电图案部件（51）包括第一中央区域（510），第一右侧突出区域（511）从第一中央区域510向右侧突出的第一左侧突出区域512以及从第一中央区域510向左侧突出的第一左侧突出区域512。第一左侧突出区域（512）的区域SA2与第一右侧突出区域（511）的区域SA1的比率SA2 / SA1被设定在0.6至1.6的范围内，由此分布流过分流电阻（31）的电流可以被检查。

7. 发明公开

EP2293329A1 REFRIGERATION APPARATUS 有权
标题翻译：制冷设备
公开(公告)号：EP2293329A1
公开(公告)日：2011-03-09
申请号：EP09762216.1
申请日：2009-05-14
申请人： Daikin Industries, Ltd.
发明人： KOYAMA, Yoshitsugu
IPC分类号： H01L23/427 , H01F17/06 , H05K7/20 , H05K9/00
CPC分类号： H05K7/20936 , F25B31/006 , H01F2017/065 , H01L23/34 , H01L23/4006 , H01L23/427 , H01L23/66 , H01L2023/405 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： A refrigeration apparatus includes: an electrical circuit (10) including a power device (14); a refrigerant jacket (30) which is thermally connected to the power device (14), and in which a refrigerant for a refrigeration cycle flows; a refrigerant pipe (20) which carries the refrigerant flowing in the refrigerant jacket (30), and forms a current path (20a, 20b) for grounding the refrigerant jacket (30); and a magnetic body (90) which is attached to the current path (20a, 20b), and generates a predetermined impedance in the current path (20a, 20b).
摘要翻译：一种制冷装置，包括：电路（10），其包括功率器件（14）; 与动力装置（14）热连接并且制冷循环用制冷剂流动的制冷剂套（30）（20），其承载在制冷剂套（30）内流动的制冷剂，并且形成用于使制冷剂套（30）接地的电流路径（20a，20b）。以及附着到电流路径（20a，20b）并在电流路径（20a，20b）中产生预定阻抗的磁体（90）。

8. 发明公开

EP4412070A1 NOISE REDUCTION CIRCUIT, POWER CONVERSION DEVICE AND REFRIGERATION DEVICE 审中-公开
公开(公告)号：EP4412070A1
公开(公告)日：2024-08-07
申请号：EP22876523.6
申请日：2022-09-30
申请人： DAIKIN INDUSTRIES, LTD.
发明人： OKUZONO, Kodai , KOYAMA, Yoshitsugu , KONO, Masaki , DOI, Hirotaka , KAWASHIMA, Reiji
IPC分类号： H02M1/12 , H02M7/48
CPC分类号： H02M1/12 , H02M1/00 , H02M7/48
摘要： A noise reduction circuit includes: a noise canceler configured to inject a compensation current into a power line and ground to reduce a common mode noise current that flows through the power line and the ground into a commercial power supply from a power converter with a switching element connected to the commercial power supply; and an overcurrent inhibitor provided on a compensation current path through which the compensation current flows, the overcurrent inhibitor being configured to inhibit application of an overcurrent to the noise canceler.

9. 发明授权

EP2897138B1 ELECTRONIC CIRCUIT APPARATUS 有权
公开(公告)号：EP2897138B1
公开(公告)日：2019-12-18
申请号：EP13836712.3
申请日：2013-08-30
申请人： Daikin Industries, Ltd.
发明人： KONDOU, Rei , TANAKA, Mitsuhiro , KOYAMA, Yoshitsugu
IPC分类号： H01C1/084 , H01C13/00

10. 发明公开

EP2897138A1 ELECTRONIC CIRCUIT APPARATUS 有权
标题翻译： VORRICHTUNG MIT EINER ELEKTRONISCHEN SCHALTUNG
公开(公告)号：EP2897138A1
公开(公告)日：2015-07-22
申请号：EP13836712.3
申请日：2013-08-30
申请人： Daikin Industries, Ltd.
发明人： KONDOU, Rei , TANAKA, Mitsuhiro , KOYAMA, Yoshitsugu
IPC分类号： H01C1/084 , H01C13/00
摘要： For an electronic circuit apparatus including a shunt resistor, provided is a measure for improving the heat dissipation performance of the shunt resistor. The shunt resistor (12) includes electrodes (12a) and (12b) at both ends. One (12b) of the two electrodes is connected to a surface-mounting pattern (13R) on which the shunt resistor (12) is surface-mounted. A current-generating-side pattern (16) and a current-receiving-side pattern (17) are arranged separately from the surface-mounting pattern (13R). The current-generating-side pattern (16) and the surface-mounting pattern (13R) are connected together via a connection member (20) which creates a space between itself and a substrate.
摘要翻译：对于包括分流电阻器的电子电路装置，提供了用于提高分流电阻器的散热性能的措施。分流电阻器（12）在两端包括电极（12a）和（12b）。两个电极中的一个（12b）连接到其上表面安装有分流电阻器（12）的表面安装图案（13R）。电流产生侧图案（16）和电流接收侧图案（17）与表面安装图案（13R）分开布置。电流产生侧图案（16）和表面安装图案（13R）经由连接构件（20）连接在一起，该连接构件在其与基板之间产生空间。

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