公开(公告)号：US20130223009A1

公开(公告)日：2013-08-29

申请号：US13837423

申请日：2013-03-15

Applicant: Hitachi, Ltd.

Inventor： Kinya NAKATSU ,  Takayoshi NAKAMURA ,  Ryuichi SAITO ,  Takashi SUGA ,  Hiroki FUNATO

IPC: H05K7/20

CPC classification number: H05K7/2089 ,  B60L3/003 ,  B60L11/123 ,  B60L11/14 ,  B60L11/1861 ,  B60L15/007 ,  B60L15/20 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2220/42 ,  B60L2240/12 ,  B60L2240/36 ,  B60L2240/421 ,  B60L2240/441 ,  B60L2240/525 ,  B60L2260/26 ,  B60L2260/28 ,  H02M7/003 ,  H05K7/20927 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275 ,  Y02T90/16

Abstract: The object is to provide a power converter which is capable of minimizing an extent to which the power converter components other than the semiconductor module are thermally affected by the heat originating from the semiconductor module.A casing houses: semiconductor modules constituting a main circuit for power conversion; a capacitor electrically connected to the main circuit; drive circuits that provide the main circuit with a drive signal used in power conversion operation; a control circuit that provides the drive circuit with a control signal used to prompt the drive circuit to provide the drive signal. Within the casing, a cooling chamber including a coolant passage is formed, and a chamber wall of the cooling chamber is formed with a thermally conductive material. At least the semiconductor modules are housed inside the cooling chamber, and at least the capacitor and the control circuit are disposed outside the cooling chamber.

公开(公告)号：US20160334451A1

公开(公告)日：2016-11-17

申请号：US15111288

申请日：2014-03-03

Applicant: HITACHI, LTD.

Inventor： Aya OHMAE ,  Takashi SUGA ,  Umberto PAOLETTI

IPC: G01R29/08

CPC classification number: G01R29/0885 ,  G01R29/08 ,  G01R29/0878

Abstract: The purpose of the present invention is to provide a small electromagnetic wave detection apparatus. This electromagnetic wave detection apparatus has: a planar Luneburg lens, which is covered with metal plates facing each other, and which changes the output direction of electromagnetic waves corresponding to the input direction of the electromagnetic waves; and an electric field sensor electrically connected to the metal plates. The electric field sensor detects the electromagnetic waves outputted from the Luneburg lens, and outputs a detection signal having an intensity corresponding to the direction in which the electromagnetic waves have traveled thereto, and the level of the energy of the electromagnetic waves thus detected.

Abstract translation: 本发明的目的是提供一种小型电磁波检测装置。 该电磁波检测装置具有：平面的Luneburg透镜，其被相互面对的金属板覆盖，并且改变与电磁波的输入方向相对应的电磁波的输出方向; 以及与金属板电连接的电场传感器。 电场传感器检测从Luneburg透镜输出的电磁波，并且输出具有与电磁波已经行进的方向相对应的强度的检测信号和由此检测到的电磁波的能量水平。

公开(公告)号：US20150313040A1

公开(公告)日：2015-10-29

申请号：US14791598

申请日：2015-07-06

Applicant: Hitachi, Ltd.

Inventor： Kinya NAKATSU ,  Takayoshi NAKAMURA ,  Ryuichi SAITO ,  Takashi SUGA ,  Hiroki FUNATO

IPC: H05K7/20

CPC classification number: H05K7/2089 ,  B60L3/003 ,  B60L15/007 ,  B60L15/20 ,  B60L50/16 ,  B60L50/61 ,  B60L58/12 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2220/42 ,  B60L2240/12 ,  B60L2240/36 ,  B60L2240/421 ,  B60L2240/441 ,  B60L2240/525 ,  B60L2260/26 ,  B60L2260/28 ,  H02M7/003 ,  H05K7/20927 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275 ,  Y02T90/16

Abstract: The object is to provide a power converter which is capable of minimizing an extent to which the power converter components other than the semiconductor module are thermally affected by the heat originating from the semiconductor module.A casing houses: semiconductor modules constituting a main circuit for power conversion; a capacitor electrically connected to the main circuit; drive circuits that provide the main circuit with a drive signal used in power conversion operation; a control circuit that provides the drive circuit with a control signal used to prompt the drive circuit to provide the drive signal. Within the casing, a cooling chamber including a coolant passage is formed, and a chamber wall of the cooling chamber is formed with a thermally conductive material. At least the semiconductor modules are housed inside the cooling chamber, and at least the capacitor and the control circuit are disposed outside the cooling chamber.

Abstract translation: 本发明的目的是提供一种功率转换器，该功率转换器能够最小化半导体模块以外的功率转换器部件受来自半导体模块的热的热影响的程度。 壳体容纳：构成用于电力转换的主电路的半导体模块; 电连接到主电路的电容器; 为主电路提供用于电力转换操作的驱动信号的驱动电路; 为驱动电路提供用于提示驱动电路提供驱动信号的控制信号的控制电路。 在壳体内形成有包括冷却剂通道的冷却室，并且用导热材料形成冷却室的室壁。 至少半导体模块容纳在冷却室内，并且至少电容器和控制电路设置在冷却室的外部。

公开(公告)号：US20130275111A1

公开(公告)日：2013-10-17

申请号：US13911309

申请日：2013-06-06

Applicant: Hitachi, Ltd.

Inventor： Hideki OSAKA ,  Takashi SUGA ,  Makoto TORIGOE

IPC: G06F17/50

CPC classification number: G06F17/5036 ,  G06F2217/82

Abstract: To provide a simulation technology of ending multiphysics analysis on heat, vibration, and EMC within a practical time and with a low-price computation process at an early stage of product designing, in a noise analysis designing method for an electric device, such as an inverter for automobile, this electric device includes one or more energy sources, a propagation path through which energy from the energy source propagates, and a noise occurring part where an electromagnetic radiated noise occurs due to the energy coming from the propagation path, the method has a step of estimating the occurring noise, such as a occurring radiated noise, by analyzing a path specified by a user by using a calculator, and the path specified by the user is a path of the energy flowing through the propagation path.

Abstract translation: 为了提供在实际的时间内结束对热，振动和EMC的多物理场分析的模拟技术，并且在产品设计的早期阶段以低价格的计算过程，在电气设备的噪声分析设计方法中，例如 该电气设备包括一个或多个能量源，来自能量源的能量传播的传播路径以及由于来自传播路径的能量而产生电磁辐射噪声的噪声发生部分，该方法具有 通过使用计算器分析由用户指定的路径来估计发生的噪声（例如发生的辐射噪声）的步骤，并且由用户指定的路径是流过传播路径的能量的路径。