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1. 发明授权

US10811950B2 Linear motor and device provided with linear motor 有权
公开(公告)号：US10811950B2
公开(公告)日：2020-10-20
申请号：US15746937
申请日：2015-08-07
申请人： Hitachi, Ltd.
发明人： Junnosuke Nakatsugawa , Yasuaki Aoyama
IPC分类号： H02K41/03 , H02K1/14
摘要： To provide a linear motor and device which suppress contact of a movable element with a core. The linear motor includes: a movable element having a permanent magnet; and an armature having magnetic pole teeth located in an up/down direction of the movable element, a winding wound around the magnetic pole teeth, and an arm part extending in a right/left direction of the movable element. The movable element and the armature make relative movement in a front/back direction. The linear motor includes a protective member which is located between the arm part and the movable element and in which a movable element facing surface facing the movable element is located inside an outer end of the winding.

2. 发明授权

US09673005B2 Switchgear 有权
公开(公告)号：US09673005B2
公开(公告)日：2017-06-06
申请号：US15029464
申请日：2014-10-02
申请人： Hitachi, Ltd.
发明人： Hisashi Urasaki , Makoto Hirose , Masataka Sasaki , Yoichi Oshita , Yasuaki Aoyama
IPC分类号： H01H33/36 , H01H33/59 , H01H33/88 , H02P6/00 , H01H9/16 , H01H47/02 , H01H3/26 , H02K41/02
CPC分类号： H01H33/36 , H01H9/167 , H01H33/59 , H01H33/88 , H01H47/02 , H01H2003/268 , H02K41/02 , H02P6/006
摘要： The invention provides a switchgear that is capable of increasing a degree of freedom of a position of a moving arcing contact in a circuit breaker, does not require dimension management of components and a mechanism for adjusting a position of the moving arcing contact, and is capable of simplifying fabrication of components and assembly of devices and reducing cost. The switchgear according to the invention includes: a circuit breaker that is configured of a fixed arcing contact installed at a fixed-side conductor and a moving arcing contact installed at a moving electrode that opens and closes with respect to the fixed arcing contact; a linear motor that generates drive force for operating the moving arcing contact; a position detecting device that detects a position of a moving element of the linear motor; a contact detecting device that detects a contact state between the fixed arcing contact and the moving arcing contact; and a control device that sets a moving range of the moving arcing contact by controlling a voltage and a phase to be supplied to the linear motor based on the contact state between the fixed arcing contact and the moving arcing contact, which is detected by the contact detecting device, and position information of the moving element of the linear motor, which is detected by the position detecting device.

3. 发明授权

US09520699B2 Switchgear 有权
公开(公告)号：US09520699B2
公开(公告)日：2016-12-13
申请号：US14395287
申请日：2013-03-27
申请人： Hitachi, Ltd.
发明人： Hajime Urai , Yasuaki Aoyama , Hiroaki Hashimoto , Tatsuro Kato , Ayumu Morita , Toshiaki Rokunohe , Yoichi Oshita
IPC分类号： H02B5/01 , H02B5/06 , H02B13/035 , H01H33/42 , H01H31/00 , H01H33/36 , H01H3/32 , H02B13/075 , H01H3/52 , H01H33/50 , H01H3/26 , H02K41/03
CPC分类号： H02B13/035 , H01H3/26 , H01H3/32 , H01H3/52 , H01H31/003 , H01H33/36 , H01H33/42 , H01H33/50 , H01H2003/268 , H01H2223/002 , H02B5/01 , H02B5/06 , H02B13/075 , H02K41/031
摘要： An object is to provide a switchgear having a simple structure. To solve the problem, a switchgear according to the invention is characterized by having a fixed side electrode 3, a movable side electrode 4 configured to come into contact with or separate from the fixed side electrode 3, and an operating mechanism configured to allow drive force for movement of the movable side electrode 4 to be generated, wherein the operating mechanism for operating the movable side electrode 4 includes one operating mechanism, and the one operating mechanism allows the movable side electrode 4 to stop at three or more positions.

4. 发明授权

US09712032B2 Linear motor and linear motor drive system 有权
公开(公告)号：US09712032B2
公开(公告)日：2017-07-18
申请号：US14424300
申请日：2013-10-23
申请人： Hitachi, Ltd.
发明人： Yasuaki Aoyama , Akiyoshi Komura , Yoshitaka Iwaji
IPC分类号： H02K41/03 , H02K16/02
CPC分类号： H02K41/031 , H02K16/02 , H02K2213/03 , H02K2213/12
摘要： A linear motor is capable of miniaturization of a device, sharing of effective magnetic fluxes between the magnetic poles adjacent to each other, and decreasing a magnetic attractive force acting between a mover and an armature, and a linear motor drive system. The linear motor includes a mover, formed by lining up a plurality of pieces of permanent magnets or magnetic materials while inversing a magnetization direction thereof, and an armature. First and second magnetic pole teeth are disposed in such a way as to vertically tuck the permanent magnet or the magnetic material. A magnetic material links the first magnetic pole tooth to the second magnetic pole tooth, thereby forming a path for a magnetic flux, and windings are disposed on the first magnetic pole tooth and the second magnetic pole tooth, respectively. At least two units of the armatures are lined to be linked to each other.

5. 发明申请

US20150091677A1 Gas Circuit Breaker 审中-公开
标题翻译：气体断路器
公开(公告)号：US20150091677A1
公开(公告)日：2015-04-02
申请号：US14390594
申请日：2013-03-27
申请人： Hitachi, Ltd.
发明人： Hajime Urai , Yasuaki Aoyama , Hiroaki Hashimoto , Katsuhiko Shiraishi , Tatsuro Kato , Ayumu Morita , Toshiaki Rokunohe , Yoichi Oshita
IPC分类号： H01H71/32 , H01H71/12 , H01H71/02
CPC分类号： H01H71/321 , H01H33/36 , H01H33/40 , H01H71/025 , H01H71/128 , H01H2003/268 , H02K16/00 , H02K41/031
摘要： An object is to provide a gas circuit breaker having improved reliability. To solve the above-described problem, a gas circuit breaker is characterized by having a fixed contact, a movable contact configured to come into contact with or separate from the fixed contact, an insulating enclosure internally having the fixed contact and the movable contact, the inside of the insulating enclosure being filled with an insulating gas, and an operating mechanism configured to allow drive force for movement of the movable contact to be generated, wherein the operating mechanism includes a mover including permanent magnets or magnetic bodies disposed in a direction along which the operating mechanism allows the drive force to be generated, and a magnetic pole disposed to be opposed to the mover, and having a winding.
摘要翻译：目的是提供一种具有改进的可靠性的气体断路器。为了解决上述问题，气体断路器的特征在于具有固定触点，构造成与固定触点接触或分离的可动触头，内部具有固定触点和可动触点的绝缘外壳，绝缘壳体的内部填充有绝缘气体;以及操作机构，其构造成允许用于所要生成的可动触头的移动的驱动力，其中，所述操作机构包括动子，所述动子包括永磁体或磁体，所述操作机构允许产生驱动力，以及设置成与所述动子对置并具有绕组的磁极。

6. 发明授权

US10727727B2 Linear motor and apparatus using same 有权
公开(公告)号：US10727727B2
公开(公告)日：2020-07-28
申请号：US15305935
申请日：2015-03-02
申请人： Hitachi, Ltd.
发明人： Yasuaki Aoyama , Masaki Koyama , Takahiro Suzuki , Shuhei Nagata
IPC分类号： H02K41/02 , H02K41/03 , H02K16/02
摘要： Provided are: a linear motor that has increased compactness and that can effectively use magnetic flux; and an apparatus provided with the linear motor. The linear motor has a top mobile element and a bottom mobile element provided below the top mobile element, and an armature has: a top first set of magnetic pole teeth comprising two magnetic pole teeth opposing each other in the vertical direction across a space through which the top mobile element can move in a reciprocating manner; and a bottom first set of magnetic pole teeth comprising two magnetic pole teeth opposing each other in the vertical direction across a space through which the bottom mobile element can move in a reciprocating manner. The linear motor is characterized by the armature being able to be split into an inner component, which has the bottom magnetic pole tooth of the top first set of magnetic pole teeth and the top magnetic pole tooth of the bottom first set of magnetic pole teeth, and a component having approximately the same shape as that of the inner component or outer component and having the bottom magnetic pole tooth of the bottom first set of magnetic pole teeth.

7. 发明授权

US10371144B2 Linear motor, compressor equipped with linear motor and equipment equipped with linear motor 有权
公开(公告)号：US10371144B2
公开(公告)日：2019-08-06
申请号：US14884189
申请日：2015-10-15
申请人： Hitachi, Ltd.
发明人： Eri Maruyama , Yasuaki Aoyama , Takahiro Suzuki
IPC分类号： F04B53/04 , F04B53/14 , F04B35/04 , F04B49/06 , H02K41/03 , H02K3/28 , H02K11/225
摘要： There is provided a linear motor that can detect the displacement of a moving member or the inclination of the moving member in a direction in which two windings are opposed to each other and equipment equipped with the linear motor. A linear motor includes: a first armature having an upper winding and a lower winding opposed to the upper winding through a gap in a vertical direction; a moving member having a permanent magnet and enabled to reciprocate in a longitudinal direction with respect to the first armature; and a current detecting unit that detects an electric current carried through the first armature. The upper winding and the lower winding are in parallel connection.

8. 发明申请

US20150043121A1 Circuit Breaker and Circuit Breaker Operating Method 有权
标题翻译：断路器和断路器操作方法
公开(公告)号：US20150043121A1
公开(公告)日：2015-02-12
申请号：US14390469
申请日：2013-03-27
申请人： Hitachi, Ltd.
发明人： Hajime Urai , Yasuaki Aoyama , Hiroaki Hashimoto , Katsuhiko Shiraishi , Tatsuro Kato , Ayumu Morita , Toshiaki Rokunohe , Yoichi Ohita
IPC分类号： H01H47/22 , H01H50/54 , H01H50/14
CPC分类号： H01H47/223 , H01H33/36 , H01H33/38 , H01H33/59 , H01H50/14 , H01H50/54 , H01H2003/268 , H01H2223/002
摘要： The invention is intended to provide a circuit breaker or a circuit breaker operating method enabling a current interruption action to be performed efficiently. A circuit breaker is characterized in that includes a fixed contact and a movable contact that comes in and goes out of contact with the fixed contact; a main circuit conductor that is electrically connected to the fixed contact and the movable contact; an operating mechanism including a mover configured by concatenating permanent magnets or magnetic materials alternately having opposite N and S magnetic polarities along the direction of motion axis of the movable contact and magnetic poles disposed to face the N and S magnetic polarities of the mover and wound with windings; a current detector that detects a current flowing through the main circuit conductor; and a control device that varies the amount of a current to be supplied to the windings of the magnetic poles, depending on a current value detected by the current detector.
摘要翻译：本发明旨在提供一种能够有效地执行电流中断动作的断路器或断路器操作方法。断路器的特征在于包括固定触点和与固定触头脱离接触的可动触头; 主电路导体，电连接到固定触点和可动触头; 一种操作机构，包括通过将永磁体或磁性材料沿着可移动触点的运动轴线的方向交替具有相反的N和S磁极性而构成的移动体，以及面对移动体的N和S磁极性并且缠绕的磁极绕组; 检测流过主电路导体的电流的电流检测器; 以及控制装置，其根据由电流检测器检测到的电流值来改变要提供给磁极绕组的电流量。

9. 发明授权

US10288117B2 Motor system and compressor equipped therewith 有权
公开(公告)号：US10288117B2
公开(公告)日：2019-05-14
申请号：US15541863
申请日：2015-01-07
申请人： Hitachi, Ltd.
发明人： Takahiro Suzuki , Yasuaki Aoyama , Shuhei Nagata , Masaki Koyama
IPC分类号： H02K7/09 , F04B35/04 , F16C32/04 , H02K11/21 , H02K11/33 , H02K33/12 , H02K41/03 , H02P25/06
摘要： To provide a motor system that can control the position of a control object in multiple directions while suppressing the number of required switching elements. A motor system includes: a power conversion device including first, second, and third up-down arms each including two switching elements connected in series; a control object; and a first load including a magnetic pole tooth facing the control object, and a winding wound around the magnetic pole tooth. The motor system includes a second load including two magnetic pole teeth facing each other in a second direction with the control object therebetween, and a winding wound around one or both of the magnetic pole teeth. The power conversion device provides a force with respect to a first direction to the control object through an output to the first load, and provides a force with respect to the second direction to the control object through an output to the second load.

10. 发明授权

US10090748B2 Linear motor and compressor equipped with linear motor 有权
公开(公告)号：US10090748B2
公开(公告)日：2018-10-02
申请号：US14936997
申请日：2015-11-10
申请人： Hitachi, Ltd.
发明人： Shuhei Nagata , Masaki Koyama , Takahiro Suzuki , Yasuaki Aoyama
IPC分类号： H02K41/03 , F04B39/12 , F04B35/04 , H02K1/14
摘要： A linear motor includes an armature with two magnetic poles arranged in the Z direction, and winding wires wound around the two magnetic poles, respectively, and a mover with a permanent magnet, which moves relative to the armature in the Z direction. A first auxiliary magnetic pole is disposed between the two magnetic poles, and a bridge is disposed between the first auxiliary magnetic pole and the magnetic pole. The two winding wires are electrically coupled.

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