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1. 发明授权

US09807913B2 Cooling structure of heating element and power conversion device 有权
公开(公告)号：US09807913B2
公开(公告)日：2017-10-31
申请号：US15231244
申请日：2016-08-08
申请人： Hitachi, Ltd.
发明人： Daisuke Matsumoto , Akira Mima , Tetsuya Kawashima , Yuuichi Mabuchi , Yukio Hattori , Hiroshi Kamizuma , Ryouhei Miyagawa , Tomonori Ichikawa
IPC分类号： G06F1/16 , H05K5/00 , H05K7/00 , H05K7/20 , H01L35/32 , H01L35/04 , H01L23/40 , H01L23/367 , H01L23/427
CPC分类号： H05K7/209 , H01L23/3677 , H01L23/40 , H01L23/427 , H01L35/04 , H01L35/32 , H01L2924/0002 , H05K7/20336 , H05K7/20409 , H01L2924/00
摘要： A cooling structure of a heating element includes: the heating element having at least one cooling surface from which a plurality of pin fins project; a heat receiving plate which has a shape complying with the cooling surface and in which holes are formed at positions facing each pin fin, each pin fin being movably inserted into the holes; a cooler which has a pair of clamping members that sandwich therebetween the heating element and the heat receiving plate while pressing the heating element and the heat receiving plate, and which cools the heat receiving plate; and a space securing part which is provided on the heat receiving plate and suppresses a distance between the pair of clamping members so as not to apply a pressing force by the clamping members to the heating element.

2. 发明授权

US09497887B2 Cooling structure for heating element and power converter 有权
标题翻译：加热元件和功率转换器的冷却结构
公开(公告)号：US09497887B2
公开(公告)日：2016-11-15
申请号：US14568300
申请日：2014-12-12
申请人： HITACHI, LTD.
发明人： Daisuke Matsumoto , Yuuichi Mabuchi , Akira Mima , Tetsuya Kawashima , Yukio Hattori , Hiroshi Kamizuma , Ryouhei Miyagawa , Tomonori Ichikawa
IPC分类号： H05K7/20 , H01L23/473
CPC分类号： H05K7/20154 , H05K7/20336 , H05K7/20409 , H05K7/20936
摘要： A cooling structure is provided. The cooling structure includes cooling surfaces on two confronting side surfaces; a plurality of double-sided-cooling power module, the heat receiving block pinching the heating elements arranged in a vertical direction on the confronting side surfaces, first and second cooling devices, each including the heat radiating fins, disposed above the heating elements, extending in a horizontal direction, and a pressure contacting part configured to contact the heating elements and the receiving block with a pressure force. The heat radiation fins are blown from a side of the electric terminal.
摘要翻译：提供冷却结构。冷却结构包括在两个相对的侧表面上的冷却表面; 多个双面冷却功率模块，所述热接收块在相对的侧表面上夹持沿垂直方向布置的所述加热元件，每个包括设置在所述加热元件上方的散热片的第一和第二冷却装置延伸以及压力接触部，其构造成以加压力与所述加热元件和所述接收块接触。散热翅片从电气端子的一侧吹出。

3. 发明授权

US10141861B2 Power conversion unit, power converter and method of manufacturing power converter 有权
公开(公告)号：US10141861B2
公开(公告)日：2018-11-27
申请号：US15880698
申请日：2018-01-26
申请人： Hitachi, Ltd.
发明人： Yukio Hattori , Hiroshi Kamizuma , Daisuke Matsumoto , Akira Mima , Tetsuya Kawashima , Yuuichi Mabuchi
IPC分类号： H02M7/00 , H05K7/14 , H02M7/219 , H02M7/5387
摘要： To improve accessibility with respect to a power conversion unit in a power converter. The power converter includes a circuit connection part including a positive electrode conductor, a negative electrode conductor and an AC conductor, a power semiconductor module positioned in a particular direction with respect to the circuit connection part and connected to the positive electrode conductor, the negative electrode conductor and the AC conductor and a capacitor positioned in the particular direction with respect to the circuit connection part and connected to the positive electrode conductor and the negative electrode conductor. The positive electrode conductor is connected to a positive electrode conductor of another power conversion unit through a unit connection part positioned in an opposite direction of the particular direction with respect to the circuit connection part. The negative electrode conductor is connected to a negative electrode conductor of another power conversion unit through the unit connection part.

4. 发明授权

US09532489B2 Power conversion device 有权
标题翻译：电源转换装置
公开(公告)号：US09532489B2
公开(公告)日：2016-12-27
申请号：US14750302
申请日：2015-06-25
申请人： Hitachi, Ltd.
发明人： Yuuichi Mabuchi , Tetsuya Kawashima , Daisuke Matsumoto , Akira Mima , Yukio Hattori , Hiroshi Kamizuma
IPC分类号： H05K7/20
CPC分类号： H05K7/20909 , H05K7/20936
摘要： A power conversion device capable of reducing a temperature variation between a plurality of semiconductor modules is provided. The power conversion device comprises condensers 121, 122, a plurality of semiconductor modules 101, 102, heat dissipation units 103 to 109, a bus bar 140 connecting the condensers 121, 122 with the plurality of the semiconductor modules 101, 102, and a ventilation unit having cool wind blow. The power conversion module has features that the plurality of semiconductor modules 101, 102 are arranged apart from the condensers 121, 122 and in a line in a longitudinal direction of the bus bar 140 and that the cool wind 150 blows in a direction from the condensers 121, 122 toward the plurality of semiconductor modules 101, 102 that are mounted.
摘要翻译：提供能够降低多个半导体模块之间的温度变化的电力转换装置。电力转换装置包括电容器121,122，多个半导体模块101,102，散热单元103至109，连接冷凝器121,122与多个半导体模块101,102的汇流条140以及通风单位有凉风吹。功率转换模块具有这样的特征：多个半导体模块101,102与冷凝器121,122分开布置，并且沿总线140的纵向方向排成一列，并且冷风150沿着冷凝器 121,122朝向安装的多个半导体模块101,102。

5. 发明申请

US20130341711A1 SEMICONDUCTOR DEVICE 审中-公开
标题翻译：半导体器件
公开(公告)号：US20130341711A1
公开(公告)日：2013-12-26
申请号：US13921398
申请日：2013-06-19
申请人： Hitachi, Ltd.
发明人： Daisuke Matsumoto , Toshiyuki Ohno , Hirotaka Hamamura
IPC分类号： H01L29/78 , H01L29/06
CPC分类号： H01L29/7827 , H01L29/045 , H01L29/06 , H01L29/0696 , H01L29/1608 , H01L29/4236 , H01L29/66068 , H01L29/7391 , H01L29/7828
摘要： A technique for improving the characteristics of a semiconductor device (UMOSFET) is provided. In the UMOSFET in order to grow an epitaxial growth film on a trench side wall with an even film thickness, a channel is arranged in an optimum direction as a growth surface. For example, a trench is formed on an SiC substrate having a {0001} surface 4° off in a direction as a main surface so that a channel surface becomes a {1-100} surface. With this configuration, an epitaxial growth with the even thickness can be conducted on the side wall from which the {1-100} surface of the trench is exposed. As a result, the unevenness of a channel resistance, and the insulation failure of a gate insulating film do not occur, and the yield is improved.
摘要翻译：提供了一种用于改善半导体器件（UMOSFET）的特性的技术。在UMOSFET中，为了在具有均匀膜厚度的沟槽侧壁上生长外延生长膜，将通道作为生长表面以最佳方向布置。例如，在具有{0001}表面在[11-20]方向上以{11-20}方向离开的SiC衬底上形成沟槽作为主表面，使得沟道表面变为{1-100}表面。利用这种构造，可以在沟槽的{1-100}表面暴露的侧壁上进行具有均匀厚度的外延生长。结果，不会发生沟道电阻的不均匀性和栅极绝缘膜的绝缘破坏，并且产率提高。

6. 发明授权

US10014793B2 Power conversion unit, power converter, and power conversion method 有权
公开(公告)号：US10014793B2
公开(公告)日：2018-07-03
申请号：US15025370
申请日：2014-03-10
申请人： Hitachi, Ltd.
发明人： Akira Mima , Yukio Hattori , Tetsuya Kawashima , Yuichi Mabuchi , Daisuke Matsumoto , Hiroshi Kamiduma
IPC分类号： H02M7/00 , H02M5/458 , H02J9/06 , H02M7/217 , H02M7/537 , H02M7/5387
CPC分类号： H02M5/4585 , H02J9/06 , H02M7/003 , H02M7/2173 , H02M7/537 , H02M7/5387
摘要： An imbalance of control signals between two power semiconductor elements is reduced. A first power semiconductor module and a second power semiconductor module are arranged in a predetermined direction along a surface of a control signal wiring circuit board, each of longitudinal directions of the first power semiconductor module and the second power semiconductor module along the surface of the control signal wiring circuit board is a predetermined direction, and, in a first control signal wiring, a distance between an external control signal terminal and a second control signal terminal is equal to a distance between the external control signal terminal and a first control signal terminal.

7. 发明授权

US09917529B2 Power conversion unit, power converter and method of manufacturing power converter 有权
公开(公告)号：US09917529B2
公开(公告)日：2018-03-13
申请号：US15022695
申请日：2014-03-27
申请人： Hitachi, Ltd.
发明人： Yukio Hattori , Hiroshi Kamizuma , Daisuke Matsumoto , Akira Mima , Tetsuya Kawashima , Yuuichi Mabuchi
IPC分类号： H02M7/00 , H05K7/14 , H02M7/219 , H02M7/5387
CPC分类号： H02M7/003 , H02M7/219 , H02M7/53871 , H05K7/1432
摘要： To improve accessibility with respect to a power conversion unit in a power converter. The power converter includes a circuit connection part including a positive electrode conductor, a negative electrode conductor and an AC conductor, a power semiconductor module positioned in a particular direction with respect to the circuit connection part and connected to the positive electrode conductor, the negative electrode conductor and the AC conductor and a capacitor positioned in the particular direction with respect to the circuit connection part and connected to the positive electrode conductor and the negative electrode conductor. The positive electrode conductor is connected to a positive electrode conductor of another power conversion unit through a unit connection part positioned in an opposite direction of the particular direction with respect to the circuit connection part. The negative electrode conductor is connected to a negative electrode conductor of another power conversion unit through the unit connection part.

8. 发明授权

US10008953B2 Power conversion device and power conversion method for power conversion device 有权
公开(公告)号：US10008953B2
公开(公告)日：2018-06-26
申请号：US15304171
申请日：2014-05-07
申请人： Hitachi, Ltd.
发明人： Hiroshi Kamizuma , Yukio Hattori , Tetsuya Kawashima , Akira Mima , Daisuke Matsumoto , Yuuichi Mabuchi
IPC分类号： H02M1/00 , H02M7/00 , H02M5/45 , H02M7/217 , H02J9/06
CPC分类号： H02M7/003 , H02J9/06 , H02J9/062 , H02M5/45 , H02M7/217
摘要： An uninterruptible power-supply system is a power converter having a PN laminated bus bar and a plurality of power conversion units and supplying power from a commercial power supply via a converter and an inverter. The power conversion units each have positive side terminals connected to each other and negative side terminals connected to each other through the PN laminated bus bar. At least one power conversion unit constitutes a phase of the converter. At least another one power conversion unit constitutes a phase of the inverter and has the positive side terminal lying adjacent to and connected through the PN laminated bus bar to the positive side terminal of the corresponding power conversion unit constituting the phase of the converter and the negative side terminal lying adjacent to and connected to the negative side terminal of the corresponding power conversion unit constituting the phase of the converter.

9. 发明授权

US09906154B2 Power conversion unit and power conversion device 有权
公开(公告)号：US09906154B2
公开(公告)日：2018-02-27
申请号：US15113850
申请日：2015-03-02
申请人： Hitachi, Ltd.
发明人： Yukio Hattori , Hiroshi Kamizuma , Tetsuya Kawashima , Akira Mima , Daisuke Matsumoto , Yuuichi Mabuchi
IPC分类号： H02M5/458 , H02M7/48 , H02M1/14
CPC分类号： H02M5/458 , H02M1/14 , H02M7/48
摘要： The present invention reduces the footprint of a power conversion device. A first power semiconductor module and a second power semiconductor module are connected to a positive conductor, a negative conductor, and an alternating-current conductor. An external alternating-current terminal, the first power semiconductor module, the second power semiconductor module, a capacitor, and an external direct-current terminal including an external positive terminal and an external negative terminal are arrayed on a straight line extending in the longitudinal direction of a circuit connection section. The external alternating-current terminal is disposed at one longitudinal end of the circuit connection section. The external direct-current terminal is disposed at the other longitudinal end of the circuit connection section.

10. 发明授权

US09437797B2 Cooling structure of heating element and power conversion device 有权
标题翻译：加热元件和电力转换装置的冷却结构
公开(公告)号：US09437797B2
公开(公告)日：2016-09-06
申请号：US14818962
申请日：2015-08-05
申请人： Hitachi, Ltd.
发明人： Daisuke Matsumoto , Akira Mima , Tetsuya Kawashima , Yuuichi Mabuchi , Yukio Hattori , Hiroshi Kamizuma , Ryouhei Miyagawa , Tomonori Ichikawa
IPC分类号： H05K7/20 , H01L35/32 , H01L35/04 , H01L23/40 , G06F1/20 , H02M1/00
CPC分类号： H05K7/209 , H01L23/3677 , H01L23/40 , H01L23/427 , H01L35/04 , H01L35/32 , H01L2924/0002 , H05K7/20336 , H05K7/20409 , H01L2924/00
摘要： A cooling structure of a heating element includes: the heating element having at least one cooling surface from which a plurality of pin fins project; a heat receiving plate which has a shape complying with the cooling surface and in which holes are formed at positions facing each pin fin, each pin fin being movably inserted into the holes; a cooler which has a pair of clamping members that sandwich therebetween the heating element and the heat receiving plate while pressing the heating element and the heat receiving plate, and which cools the heat receiving plate; and a space securing part which is provided on the heat receiving plate and suppresses a distance between the pair of clamping members so as not to apply a pressing force by the clamping members to the heating element.
摘要翻译：加热元件的冷却结构包括：加热元件具有至少一个冷却表面，多个销翅片从该冷却表面突出; 一个受热板，其具有与冷却表面一致的形状，并且在面对每个销翅片的位置处形成有孔，每个销翅片可移动地插入孔中; 冷却器，其具有一对夹持构件，其在加热元件和受热板的同时夹住加热元件和受热板，并且冷却热接收板; 以及设置在所述受热板上的空间固定部，并且抑制所述一对夹持构件之间的距离，以便不将所述夹持构件施加到所述加热元件上的按压力。

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