公开(公告)号：JP2013046488A

公开(公告)日：2013-03-04

申请号：JP2011182383

申请日：2011-08-24

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： SATO HIROSHI

IPC: H02P6/06

CPC classification number: H02P29/00 ,  B60L11/12 ,  H02P6/06 ,  H02P27/08 ,  H02P2201/00 ,  Y02T10/642 ,  Y02T10/7077

Abstract: PROBLEM TO BE SOLVED: To reduce detection errors of actual rotational speeds and perform rotating operation with little variation even with a blower motor control unit that has an operation clock with low accuracy, which is a reference clock of a controller installed on the blower motor side.SOLUTION: The blower motor drive, to which a target rotational speed is given from a host system with a PWM signal duty ratio, calculates a periodical error of a PWM signal and multiplication-corrects a rotor rotational speed calculated from a position detection sensor for speed control on the basis of the periodical error.

Abstract translation: 要解决的问题：为了减少实际旋转速度的检测误差，并且即使使用具有低精度的操作时钟的鼓风机电动机控制单元也是几乎没有变化的旋转操作，作为安装在该控制器上的控制器的参考时钟 鼓风机电机侧。

解决方案：从具有PWM信号占空比的主机系统给出目标转速的鼓风机电机驱动器计算PWM信号的周期误差，并对从位置检测计算出的转子转速进行乘法校正 传感器用于基于周期误差的速度控制。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012028560A

公开(公告)日：2012-02-09

申请号：JP2010165883

申请日：2010-07-23

Applicant: Mitsubishi Electric Corp ,  三菱電機株式会社

Inventor： SAOTOME HIDEYUKI

IPC: H01G2/08 ,  H02M1/00 ,  H02M7/48

CPC classification number: H05K7/209 ,  H01G2/08 ,  H01G4/228 ,  H02M2001/346 ,  H02P2201/00 ,  Y02B70/1491

Abstract: PROBLEM TO BE SOLVED: To provide a structure for cooling a snubber capacitor which is self-heated by a peak current flown in due to a surge voltage occurring at switching of a semiconductor switch element.SOLUTION: A capacitor cooling structure comprises: a snubber capacitor 1 in which a lead terminal 103 is connected to an external electrode 102 of a laminated ceramic electronic component 101; a circuit board 3 on which the snubber capacitor 1 or a semiconductor switch element 2 is mounted; a metal heat sink 5 which radiates heat generated on the circuit board; and an insulation material 4 with high thermal conductivity which is interposed between the snubber capacitor 1 and the heat sink 5.

Abstract translation: 要解决的问题：提供一种用于冷却缓冲电容器的结构，该缓冲电容器由于在半导体开关元件的切换期间发生的浪涌电压而流动的峰值电流自加热。 解决方案：电容器冷却结构包括：缓冲电容器1，其中引线端子103连接到层叠陶瓷电子部件101的外部电极102; 其上安装有缓冲电容器1或半导体开关元件2的电路板3; 散热在电路板上产生的热量的金属散热器5; 以及介于缓冲电容器1和散热片5之间的具有高导热性的绝缘材料4.（C）2012，JPO＆INPIT

公开(公告)号：CN206893388U

公开(公告)日：2018-01-16

申请号：CN201720746248.1

申请日：2017-06-23

Applicant: 发那科株式会社

Inventor： 白水雅朋

IPC: H01F17/04 ,  H01F27/29 ,  H01F27/02

CPC classification number: H01F27/06 ,  H02P2201/00

Abstract: 本实用新型提供电抗器、电动机驱动装置以及放大器装置。一种能够削减收纳有电动机驱动装置的强电盘的内部的热源的电抗器。电抗器包括：铁芯，其为筒状；线圈，其设于铁芯的内侧；端子部，其设于铁芯的轴向上的第1端部，该端子部连接线圈；以及安装凸缘，其向铁芯的径向外侧延伸，该安装凸缘设于端子部与铁芯的第2端部之间的位置。(ESM)同样的发明创造已同日申请发明专利