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公开(公告)号：US20200177093A1
公开(公告)日：2020-06-04
申请号：US16782158
申请日：2020-02-05
Applicant: DENSO CORPORATION
Inventor： Tetsuya MATSUOKA , Ryota TANABE , Yuu YAMAHIRA , Kazuma FUKUSHIMA , Kosuke KAMIYA
IPC: H02M7/00 , H01L25/18 , H02M7/5387 , H01L23/473
Abstract: A power conversion apparatus has a positive electrode bus bar and a negative electrode bus bar. The power conversion apparatus has a first semiconductor module incorporating an upper-arm switching element and including a positive electrode terminal and a second semiconductor module incorporating a lower-arm switching element and including a negative electrode terminal. The first semiconductor module and the second semiconductor module are placed such that the positive electrode terminal and the negative electrode terminal face each other in a direction orthogonal to a protruding direction. The positive electrode bus bar and the negative electrode bus bar respectively have coexisting parts placed together between the positive electrode terminal and the negative electrode terminal as seen in the protruding direction of power terminals. The coexisting parts are at least partially placed in a space between the positive electrode terminal and the negative electrode terminal.
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公开(公告)号：US20180331617A1
公开(公告)日：2018-11-15
申请号：US16046278
申请日：2018-07-26
Applicant: DENSO CORPORATION
Inventor： Kengo MOCHIKI , Mitsunori KIMURA , Hiroshi SHIMIZU , Yasuyuki OHKOUCHI , Yuu YAMAHIRA , Tetsuya MATSUOKA , Kazuma FUKUSHIMA
IPC: H02M1/088 , H03K17/0412 , H02M3/158 , H02M7/537 , H03K17/687 , H03K17/081 , H01L27/06 , H03K17/12 , H02P27/06
CPC classification number: H02M1/088 , B60L3/003 , B60L3/0084 , B60L15/007 , H01L27/0623 , H01L2224/05554 , H01L2224/48247 , H02M1/08 , H02M3/158 , H02M7/003 , H02M7/537 , H02M7/53871 , H02M2001/0054 , H02P27/06 , H02P27/08 , H03K17/0412 , H03K17/08116 , H03K17/127 , H03K17/6871 , H03K2217/0036 , Y02T10/644 , Y02T10/645
Abstract: A power conversion apparatus includes a semiconductor module including a semiconductor device and a control circuit unit controlling the semiconductor module. The semiconductor module has main and subsidiary semiconductor devices connected in parallel. The control circuit unit performs control such that the subsidiary semiconductor device is turned on after the main semiconductor device is turned on, and the main semiconductor device is turned off after the subsidiary semiconductor device is turned off. The control circuit unit performs control such that, one of the turn-on and turn-off switching timings has a switching speed faster than that of the other of the switching timings. The semiconductor module is configured such that, at a high-speed switching timing, an induction current directed to turn off the subsidiary semiconductor device is generated in a control terminal of the subsidiary semiconductor device depending on temporal change of a main current flowing to the main semiconductor device.
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公开(公告)号：US20200177101A1
公开(公告)日：2020-06-04
申请号：US16787122
申请日：2020-02-11
Applicant: DENSO CORPORATION
Inventor： Yuu YAMAHIRA , Tetsuya MATSUOKA , Kazuma FUKUSHIMA
Abstract: In a power conversion device, each of semiconductor modules of a layered body includes a body portion incorporating a plurality of switching elements and a plurality of power terminals protruding therefrom. The semiconductor modules include upper-arm switching elements and lower-arm switching element that are alternately layered in a layering direction of the layered body. A capacitor is disposed on one side of the layered body and a current sensor is disposed on an opposite side of the layered body, in an orthogonal direction orthogonal to both a protruding direction of the power terminals and the layering direction. Each of the semiconductor modules includes, as the power terminals, two collector terminals connected to a collector electrode of the switching element and one emitter terminal connected to an emitter electrode of the switching element, and the emitter terminal is disposed between the two collector terminals in the orthogonal direction.
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公开(公告)号：US20180145672A1
公开(公告)日：2018-05-24
申请号：US15815202
申请日：2017-11-16
Applicant: DENSO CORPORATION
Inventor： Hiroshi SHIMIZU , Kengo MOCHIKI , Yuu YAMAHIRA , Tetsuya MATSUOKA , Kazuma FUKUSHIMA , Mitsunori KIMURA , Yasuyuki OHKOUCHI
IPC: H03K17/0412 , H03K17/12 , H03K17/082 , H03K17/14 , H03K17/16
CPC classification number: H03K17/04126 , H02M3/158 , H02M2001/0048 , H02M2001/007 , H03K17/04123 , H03K17/0822 , H03K17/0828 , H03K17/122 , H03K17/127 , H03K17/14 , H03K17/161 , H03K17/168 , H03K2017/0806
Abstract: In a driving apparatus for switches connected in parallel to each other, drivers respectively turn on or off the switches. A temperature obtainer obtains a value of a temperature parameter correlating with a temperature of at least one of the first and second switches. A selector selects at least one of the switches as at least one drive target switch. A driver causes at least one of the drivers to turn on the at least one drive target switch during an on duration and thereafter turn off the at least one drive target switch in each target switching cycle. The selector adjusts the number of the selected at least one drive target switch based on the value of the temperature parameter.
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公开(公告)号：US20180041107A1
公开(公告)日：2018-02-08
申请号：US15666890
申请日：2017-08-02
Applicant: DENSO CORPORATION
Inventor： Yuu YAMAHIRA , Tetsuya MATSUOKA
IPC: H02M1/08 , H05K7/20 , H02M7/00 , H03K17/567 , H02M7/537
CPC classification number: H02M1/08 , H01L23/4012 , H01L23/473 , H01L25/07 , H01L25/071 , H01L2224/33 , H01L2224/40137 , H01L2224/48247 , H01L2224/73265 , H01L2924/181 , H02M7/003 , H02M7/537 , H02M2001/0054 , H02P27/06 , H03K17/14 , H03K17/567 , H05K7/209 , H05K7/20927 , H01L2924/00012
Abstract: The semiconductor device is provided with a plurality of switching elements connected in parallel to each other, and a plurality of recirculation element connected in parallel to the aforementioned plurality of switching elements. An emitter electrode serves as a reference potential of the aforementioned plurality of switching elements and an anode electrode serves as a reference potential of the aforementioned plurality of recirculation elements are electrically connected by the same plate-like member consisting of a conductive material. The aforementioned switching elements and the aforementioned recirculation elements which are connected in parallel on the lowest potential side are constituted so that the distance from the emitter terminal connected to the aforementioned emitter electrode to the aforementioned recirculation element becomes no greater than the distance from the aforementioned emitter terminal.
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Patent Agency Ranking
公开(公告)号：US20170302181A1
公开(公告)日：2017-10-19
申请号：US15490305
申请日：2017-04-18
Applicant: DENSO CORPORATION
Inventor： Hiroshi SHIMIZU , Mitsunori KIMURA , Kengo MOCHIKI , Yuu YAMAHIRA , Tetsuya MATSUOKA , Kazuma FUKUSHIMA , Yasuyuki OHKOUCHI
CPC classification number: H02M3/158 , H02M7/5387 , H02M2001/0051 , H02M2001/0054 , H02P27/06
Abstract: A power conversion apparatus includes a first semiconductor element pair that includes a MOSFET made of wide bandgap semiconductor material and a wide bandgap diode made of wide bandgap semiconductor material which is reverse parallel-connected to the MOSFET, a second semiconductor element pair that includes an IGBT made of silicon semiconductor material and a silicon diode made of silicon semiconductor material which is reverse parallel-connected to the IGBT, and a control circuit section for controlling switching operation of the MOSFET and the IGBT. The first and second semiconductor element pairs are connected in series to each other.
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公开(公告)号：US20160227677A1
公开(公告)日：2016-08-04
申请号：US15010403
申请日：2016-01-29
Applicant: DENSO CORPORATION
Inventor： Naoki HIRASAWA , Ryota TANABE , Tetsuya MATSUOKA , Kazuya TAKEUCHI , Akira SAKAMOTO
CPC classification number: H05K7/20927 , H01F27/10 , H01F27/24 , H01F27/255 , H01F27/2823 , H01F27/29 , H01F37/00 , H02M7/003
Abstract: An electric power converter includes a semiconductor module, a reactor having a coil and a core, and a cooler for cooling the semiconductor module and the reactor. The cooler has a coolant passage member having a coolant flow path. The coil of the reactor has an exposed coil portion exposed from the core. The exposed coil portion is in contact with the coolant passage member. The core has a core end face disposed flush with the exposed coil portion, and both the exposed coil portion and the core end face are in surface contact with the coolant passage member.
Abstract translation: 电力转换器包括半导体模块，具有线圈和芯的电抗器以及用于冷却半导体模块和电抗器的冷却器。 冷却器具有具有冷却剂流动路径的冷却剂通道构件。 反应器的线圈具有从芯部露出的暴露的线圈部分。 暴露的线圈部分与冷却剂通道构件接触。 芯具有与暴露的线圈部分齐平设置的芯端面，暴露的线圈部分和芯端面都与冷却剂通道构件表面接触。
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公开(公告)号：US20240215211A1
公开(公告)日：2024-06-27
申请号：US18594278
申请日：2024-03-04
Applicant: DENSO CORPORATION
Inventor： Tetsuya MATSUOKA , Yuta Hashimoto , Tomoki Kozawa , Kazuya Takeuchi , Shinji Takai , Takahiro Shimizu
CPC classification number: H05K7/20927 , H02M7/003 , H02M7/537
Abstract: The power conversion device has a case, a semiconductor module, a first cooler that cools the semiconductor module from one side, a second cooler that cools the semiconductor module from the back side, and a coupling pipe that couples a flow path of the first cooler with a flow path of the second cooler. A flow rate of the refrigerant is made different between the flow paths, and the flow path having a larger flow rate is larger in cross-sectional area than the flow path having a smaller flow rate. The first cooler having a wider flow path is formed by a part of the case that houses the semiconductor module, and the second cooler having a narrower flow path is housed in the case together with the semiconductor module.
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公开(公告)号：US20230020456A1
公开(公告)日：2023-01-19
申请号：US17954593
申请日：2022-09-28
Applicant: DENSO CORPORATION
Inventor： Yuuya HASHIMOTO , Yuu YAMAHIRA , Toshiyuki KOUNO , Hiromi ICHIJYO , Kazuya TAKEUCHI , Tatsuya MURAKAMI , Tetsuya MATSUOKA
IPC: H02M7/00 , H02M7/5387 , H02P27/08
Abstract: A power converter includes an inverter, a converter, an electrical-machine busbar, an electrical-machine sensor, an electrical-machine-sensor housing, a converter, a converter busbar, a converter-sensor housing. The inverter supplies a three-phase alternating current to a rotating electrical machine. The converter converts a voltage between a direct current power supply and the inverter. The electrical-machine busbar passes a current between the inverter and the rotating electrical machine. The electrical-machine sensor detects the current flowing through the electrical-machine busbar based on a magnetic field. The electrical-machine-sensor housing accommodates the electrical-machine sensor and the electrical-machine busbar together. The converter sensor detects the current flowing through the converter based on a magnetic field. The converter-sensor housing is disposed apart from the electrical-machine-sensor housing, and accommodates the converter sensor and the converter busbar together.
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公开(公告)号：US20170317605A1
公开(公告)日：2017-11-02
申请号：US15655027
申请日：2017-07-20
Applicant: DENSO CORPORATION
Inventor： Kazuya TAKEUCHI , Tetsuya MATSUOKA , Ryota TANABE
CPC classification number: H02M7/003 , H05K7/20263 , H05K7/20927
Abstract: A power conversion apparatus includes a capacitor and a heat dissipation member for cooling the capacitor. The capacitor and the heat dissipation member are pressed in an arranging direction in which the capacitor and the heat dissipation member are arranged. The capacitor includes a capacitor element which includes a dielectric body and a metal layer formed on a surface of the dielectric body, an electrode part connected to the metal layer and a bus bar connected to the electrode part. Part of the bus bar is interposed in the arranging direction between the heat dissipation member and the capacitor element.
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