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公开(公告)号：US20250038673A1
公开(公告)日：2025-01-30
申请号：US18911330
申请日：2024-10-10
Applicant: DENSO CORPORATION
Inventor： Kazuma FUKUSHIMA , Hiroshi TAKI
Abstract: An inverter device includes an inverter outer peripheral wall, a high voltage board, a control board, and an arm switch unit. The inverter outer peripheral wall has an inner peripheral surface. The high voltage board and the control board extend in a direction orthogonal to an axial direction. In the high voltage board and the control board, an outer peripheral end extends in a ring shape in a circumferential direction along the inner peripheral surface. In the arm switch unit, a drain terminal and a source terminal are connected to the high voltage board, and a gate terminal and a driver source terminal are connected to the control board. Multiple arm switch units are arranged in the circumferential direction along the outer peripheral end.
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公开(公告)号：US20230354563A1
公开(公告)日：2023-11-02
申请号：US18217870
申请日：2023-07-03
Applicant: DENSO CORPORATION
Inventor： Shin YASUDA , Hiroshi TAKI , Takuro NAKAOKA
IPC: H05K7/20
CPC classification number: H05K7/20909 , H05K7/20927 , H05K7/2039 , H05K7/20272 , H05K7/20145
Abstract: In a power conversion apparatus, at least one intra-casing cooling passage is a passage through which a coolant for cooling at least a power converter flows, and is arranged in a casing. At least one extra-casing cooling passage communicates with the at least one intra-casing cooling passage and is drawn out from an inside of the casing. The at least one extra-casing cooling passage is disposed not to be in contact to the outer periphery of the casing. The power converter is arranged to be cooled by the coolant flowing through the at least one intra-casing cooling passage, and a heat exchanger and the casing are arranged to be subjected to cooling air, resulting in the heat exchanger and the casing being cooled by the cooling air.
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公开(公告)号：US20160261181A1
公开(公告)日：2016-09-08
申请号：US15062533
申请日：2016-03-07
Applicant: DENSO CORPORATION
Inventor： Takashi MASUZAWA , Hiroshi TAKI
CPC classification number: H02M7/003 , H01F27/346 , H01F2027/348
Abstract: A power converter is provided which includes at least a first and a second magnetic device equipped with coils and an electrical circuit equipped with a conductor disposed on an imaginary plane, defined between the first and second magnetic devices. If of magnetic fluxes emitted from the coils of the first and second magnetic devices, vectors of components which are oriented in directions of axes of turns of conductors of the coils are defined as a first and a second vector, the first and second magnetic devices are disposed so that an inner product of vectors derived by projecting the first and second vectors on the imaginary plane will be positive. This minimizes electrical noise generated in the electrical circuit.
Abstract translation: 提供了一种功率转换器，其包括至少配备有线圈的第一和第二磁性装置以及配置有设置在第一和第二磁性装置之间的假想平面上的导体的电路。 如果从第一和第二磁性装置的线圈发射的磁通量，则将线圈的导线的匝的方向的方向定向的部件矢量定义为第一和第二矢量，则第一和第二磁性装置是 被设置为使得通过在假想平面上投影第一和第二矢量而得到的向量的内积将为正。 这最小化在电路中产生的电噪声。
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公开(公告)号：US20150332825A1
公开(公告)日：2015-11-19
申请号：US14712198
申请日：2015-05-14
Applicant: DENSO CORPORATION , TOKYO METROPOLITAN UNIVERSITY
Inventor： Takahiro TERA , Hiroshi TAKI , Toshihisa SHIMIZU
Abstract: A reactor includes a laminated core formed by laminating soft-magnetic ribbons in a lamination direction. The laminated core has a gap formed across a magnetic path direction in the laminated core. The laminated core also has a flat facing surface that faces the gap and a pair of flat side surfaces that are respectively on opposite sides of the facing surface in the lamination direction. The laminated core further has a pair of first corner curved surfaces that are formed between the facing surface and the pair of side surfaces. Each of the first corner curved surfaces has a width in the lamination direction greater than the thickness of each of the soft-magnetic ribbons. For each of the first corner curved surfaces, a length of the first corner curved surface in the magnetic path direction is greater than the width of the first corner curved surface in the lamination direction.
Abstract translation: 反应器包括通过在层叠方向层叠软磁性体带而形成的层叠铁芯。 层叠铁芯在层叠铁心中具有形成在磁路方向上的间隙。 层叠铁芯还具有面向间隙的平坦的表面和分别位于层叠方向上的相对表面的相对侧上的一对平坦侧表面。 层叠铁芯还具有一对第一角部弯曲面，其形成在相对面和一对侧面之间。 每个第一角曲面具有层叠方向上的宽度大于每个软磁性带的厚度。 对于每个第一角曲面，第一角曲面在磁路方向上的长度大于层叠方向上的第一角曲面的宽度。
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Patent Agency Ranking
公开(公告)号：US20250038674A1
公开(公告)日：2025-01-30
申请号：US18912869
申请日：2024-10-11
Applicant: DENSO CORPORATION
Inventor： Takahiro TERA , Hiroshi TAKI
Abstract: A high voltage board includes a P busbar, an N busbar, and an output busbar. The P busbar, the N busbar, and the output busbar extend in a circumferential direction. In the output busbar, an output current flows in an overlap region from an upper arm switch unit toward a lower arm switch unit. In the P busbar, a P current flows in the overlap region from a smoothing capacitor portion toward the upper arm switch unit in a reverse direction to the output current. In the N busbar, an N current flows in the overlap region from the lower arm switch unit toward the smoothing capacitor portion in a reverse direction to the output current.
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公开(公告)号：US20140003106A1
公开(公告)日：2014-01-02
申请号：US13927779
申请日：2013-06-26
Applicant: DENSO CORPORATION
Inventor： Kazuhiro SHIRAKAWA , Hiroshi TAKI , Jun ISHII
IPC: H02M7/217
CPC classification number: H02M7/217 , H02M1/4225 , H02M7/003 , H02M2001/123 , Y02B70/126
Abstract: A boost converter capable of reducing a common-mode current that flows to the outside of a casing. In the converter, a boost circuit includes first and second inductors and at least one switching element electrically connected therebetween. A controller turns on and off the at least one switching element to boost an input voltage of the boost circuit. A first floating capacitor is formed between a first electrical path, which is at the same potential as a junction between the at least one switching element and the first inductor, and a mounting member coupled to a reference potential member with an insulator therebetween. A second floating capacitor is formed between a second electrical path, which is at the same potential as a junction between the at least one switching element and the second inductor, and the mounting member.
Abstract translation: 一种升压转换器，其能够降低流向壳体外部的共模电流。 在转换器中，升压电路包括第一和第二电感器以及在它们之间电连接的至少一个开关元件。 控制器打开和关闭至少一个开关元件以升高升压电路的输入电压。 第一浮动电容器形成在与至少一个开关元件和第一电感器之间的结点处于相同电位的第一电路和耦合到参考电位元件的安装元件之间，其间具有绝缘体。 第二浮动电容器形成在与至少一个开关元件和第二电感器之间的结点处于相同电位的第二电路和安装构件之间。
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公开(公告)号：US20250038692A1
公开(公告)日：2025-01-30
申请号：US18912846
申请日：2024-10-11
Applicant: DENSO CORPORATION
Inventor： Hiroshi TAKI , Takahiro TERA , Kazuya TAKEUCHI
Abstract: An inverter device includes an inverter housing. The inverter housing includes an inverter outer peripheral wall and multiple beam portions. The inverter outer peripheral wall has an inner peripheral surface and extends annularly around an inverter axis. The beam portion extends toward a radially inner side from the inverter outer peripheral wall. The multiple beam portions are arranged in a circumferential direction along the inner peripheral surface. The inverter device includes a high voltage board and a drive board. The high voltage board and the drive board extend in a plate shape in a direction orthogonal to an axial direction. The high voltage board and the drive board are fixed to the multiple beam portions while extending across the multiple beam portions. Mounted components such as a smoothing capacitor portion are mounted on the high voltage board and the drive board.
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公开(公告)号：US20170155337A1
公开(公告)日：2017-06-01
申请号：US15361206
申请日：2016-11-25
Applicant: DENSO CORPORATION
Inventor： Takashi MASUZAWA , Hiroshi TAKI
CPC classification number: H02M7/003 , H01L2224/40 , H02M7/48 , H05K1/0216 , H05K1/181 , H05K2201/10378
Abstract: An electric power converter includes a positive and a negative electrode terminals being disposed parallel and adjacent to each other, a positive electrode side switching device connected to the positive electrode terminal, a negative electrode side switching device connected to the negative electrode terminal, an output terminal connected to a connection point between the positive and the negative electrode side switching devices, and a counter conductor facing at least a portion of the positive electrode terminal and at least a portion of the negative electrode terminal in a height direction, the height direction being a direction perpendicular to both an aligned direction and a protruding direction of the positive and the negative electrode terminals. The counter conductor is disposed along a current path of an alternating current flowing through the positive electrode terminal, the positive electrode side switching device, the negative electrode side switching device, and the negative electrode terminal.
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公开(公告)号：US20170155327A1
公开(公告)日：2017-06-01
申请号：US15365554
申请日：2016-11-30
Applicant: DENSO CORPORATION
Inventor： Akira TOKUMASU , Hiroshi TAKI , Kazuhiro SHIRAKAWA
IPC: H02M3/337
CPC classification number: H02M3/3376 , H02M3/33584 , H02M3/33592 , H02M3/337 , H02M3/3372 , H02M2001/0054 , Y02B70/1491
Abstract: In a push-pull type DC/DC converter capable of operating primary side switching elements alternately, a switching operation section turns on a primary side switching element having a high priority after a mode (d) as a normal state is transferred to a mode (d) as an inverse state during a circulation period when a load current is circulated into the secondary side rectifier elements when all of the primary side switching elements are turned off. To turn on the primary side switching element having a high priority after occurrence of the state transition to the inverse state can reduce a voltage immediately after supplying of electric power to the primary side switching elements with using exciting current and without adding any additional component.
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