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公开(公告)号：US09866040B2
公开(公告)日：2018-01-09
申请号：US14944633
申请日：2015-11-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuya Kato
Abstract: A power transmission device applies a alternating-current voltage to an active electrode OPPOSING an active electrode of a power reception device with a gap therebetween, and to a passive electrode OPPOSING a passive electrode of the power reception device with a gap therebetween and transmits power via electric field coupling. The power transmission device includes a controller that monitors a voltage applied to the passive electrode. If a change in the voltage per unit time exceeds a threshold, the controller determines that a metal foreign object has become interposed between the active electrodes and a user has touched the metal foreign object, and stops the transmission of power to the power reception device. Thus, a power transmission device and a wireless power transmission system are provided that are capable of preventing with certainty a malfunction due to a foreign object when a foreign object has become interposed between electrodes.
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公开(公告)号：US20130249313A1
公开(公告)日：2013-09-26
申请号：US13858694
申请日：2013-04-08
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Takanori Tsuchiya , Kazuya Kato
IPC: H02J1/00
Abstract: A power transmission system and a power receiving jacket is provided that enhances the transmission efficiency of electric power with a simple structure and without increasing manufacturing costs. The power transmission system includes a power transmitting device having a first passive electrode, a first active electrode whose potential is higher than the first passive electrode, and a voltage generation circuit connected between the first passive electrode and the first active electrode, a power receiving jacket having a second active electrode and a power receiving circuit module connected to the second active electrode, and an electronic device attachable to the power receiving jacket. The electronic device includes a chassis having a conductive portion formed from a conductive material along a surface facing the first passive electrode, and the power receiving circuit module is electrically connected between the conductive portion and the second active electrode.
Abstract translation: 提供了一种电力传输系统和电力接收护套，其以简单的结构提高了电力的传输效率，并且不增加制造成本。 电力传输系统包括具有第一无源电极，电位高于第一无源电极的第一有源电极和连接在第一无源电极与第一有源电极之间的电压产生电路的电力传输装置，电力接收外壳 具有连接到第二有源电极的第二有源电极和功率接收电路模块，以及可附接到电力接收护套的电子设备。 电子设备包括具有导电部分的底座，该导电部分沿着面向第一无源电极的表面由导电材料形成，并且电力接收电路模块电连接在导电部分和第二有源电极之间。
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公开(公告)号：US09369009B2
公开(公告)日：2016-06-14
申请号：US13868659
申请日：2013-04-23
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Kazuya Kato , Keiichi Ichikawa
CPC classification number: H02J50/05 , H02J7/0044 , H02J7/022 , H02J7/025 , H02J17/00 , H02J50/70 , H02J50/90
Abstract: A casing of a power transmitting device is provided with a power transmitting device side passive electrode, a power transmitting device side active electrode, and a power transmitting module. A jacket mounted on a terminal is provided with a power receiving device side passive electrode, a power receiving device side active electrode, a power receiving module, and a DC-DC converter. A heat sink portion with fins is formed on a portion of the power transmitting device side passive electrode. When the terminal is mounted on the power transmitting device, the power receiving device side passive electrode is electrically connected to the power transmitting device side passive electrode, and the power receiving device side active electrode faces the power transmitting device side active electrode. In this state, the heat of the power receiving module and the DC-DC converter is dissipated from the power transmitting device side passive electrode.
Abstract translation: 电力传输装置的壳体设置有电力传输装置侧无源电极，发电装置侧有源电极和电力传输模块。 安装在端子上的护套设置有受电装置侧无源电极，受电装置侧有源电极，受电模块和DC-DC转换器。 在动力传递装置侧被动电极的一部分上形成有散热片的散热部。 当端子安装在电力传输装置上时，受电装置侧无源电极电连接到电力传输装置侧无源电极，受电装置侧有源电极面向电力传输装置侧有源电极。 在这种状态下，受电模块和DC-DC转换器的热量从发射装置侧的被动电极消散。
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公开(公告)号：US08686599B2
公开(公告)日：2014-04-01
申请号：US13858694
申请日：2013-04-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takanori Tsuchiya , Kazuya Kato
Abstract: A power transmission system and a power receiving jacket is provided that enhances the transmission efficiency of electric power with a simple structure and without increasing manufacturing costs. The power transmission system includes a power transmitting device having a first passive electrode, a first active electrode whose potential is higher than the first passive electrode, and a voltage generation circuit connected between the first passive electrode and the first active electrode, a power receiving jacket having a second active electrode and a power receiving circuit module connected to the second active electrode, and an electronic device attachable to the power receiving jacket. The electronic device includes a chassis having a conductive portion formed from a conductive material along a surface facing the first passive electrode, and the power receiving circuit module is electrically connected between the conductive portion and the second active electrode.
Abstract translation: 提供了一种电力传输系统和电力接收护套，其以简单的结构提高了电力的传输效率，并且不增加制造成本。 电力传输系统包括具有第一无源电极，电位高于第一无源电极的第一有源电极和连接在第一无源电极与第一有源电极之间的电压产生电路的电力传输装置，受电护套 具有连接到第二有源电极的第二有源电极和功率接收电路模块，以及可附接到电力接收护套的电子设备。 电子设备包括具有导电部分的底座，该导电部分沿着面向第一无源电极的表面由导电材料形成，并且电力接收电路模块电连接在导电部分和第二有源电极之间。
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公开(公告)号：US09473212B2
公开(公告)日：2016-10-18
申请号：US14108541
申请日：2013-12-17
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Tsuyoshi Suesada , Kazuya Kato , Hironobu Takahashi
CPC classification number: H04B5/0037 , G06F1/1656 , G06F1/263 , H02J7/025 , H02J17/00 , H02J50/05 , H02J50/90 , H04B5/0012
Abstract: In a power transmitter device, a power transmitter side active electrode and a power transmitter side passive electrode are formed. In a power receiver device, a power receiver side active electrode and a power receiver side passive electrode are formed. The power transmitter side active electrode is rectangle that is shorter in a first direction and longer in a second direction. The power receiver side active electrode is rectangle that is longer in the first direction and shorter in the second direction. The power transmitter side active electrode and the power receiver side active electrode are formed so as that lengths of overlapping area in the first and second directions do not change in a placement receivable area on the power transmitter device, within which the power receiver device is allowed to be displaced.
Abstract translation: 在功率发射器装置中，形成功率发射器侧有源电极和功率发射器侧无源电极。 在电力接收装置中形成有电力接收侧的有源电极和电力接收侧的无源电极。 功率发射器侧有源电极是在第一方向上较短并且在第二方向上较长的矩形。 受电器侧有源电极是在第一方向上较长并且在第二方向上较短的矩形。 功率发送器侧有源电极和电力接收器侧有源电极形成为使得能够在功率接收器件允许的功率发送器装置上的第一和第二方向上的重叠区域的长度不变化， 被流离失所
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Patent Agency Ranking
公开(公告)号：US09319107B2
公开(公告)日：2016-04-19
申请号：US13871067
申请日：2013-04-26
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Kazuya Kato , Kazuaki Higashibata
CPC classification number: H04B5/0037 , H01G5/04 , H02J7/0044 , H02J7/025 , H02J17/00 , H02J50/12 , H02J50/90
Abstract: A wireless power transmission system that includes a power transmission apparatus including a passive electrode and an active electrode and a power reception apparatus including passive electrodes and active electrode. When the power reception apparatus is longitudinally placed on the power transmission apparatus, the active electrodes are opposed to each other to cause electric power to be transmitted from the power transmission apparatus to the power reception apparatus. A facing area between the active electrodes in lateral placement of the power reception apparatus on the power transmission apparatus is made substantially equal to a facing area between the active electrodes in the longitudinal placement of the power reception apparatus on the power transmission apparatus.
Abstract translation: 一种无线电力传输系统，其包括包括无源电极和有源电极的电力传输装置和包括无源电极和有源电极的电力接收装置。 当电力接收装置纵向放置在电力传输装置上时，有源电极彼此相对，从而将电力从电力传输装置传送到电力接收装置。 功率接收装置在动力传递装置上的侧向放置的有源电极之间的面对区域在动力传递装置的受电装置的纵向放置中基本上等于有源电极之间的相对面积。
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公开(公告)号：US20130270922A1
公开(公告)日：2013-10-17
申请号：US13868659
申请日：2013-04-23
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Kazuya Kato , Keiichi Ichikawa
IPC: H02J17/00
CPC classification number: H02J50/05 , H02J7/0044 , H02J7/022 , H02J7/025 , H02J17/00 , H02J50/70 , H02J50/90
Abstract: A casing of a power transmitting device is provided with a power transmitting device side passive electrode, a power transmitting device side active electrode, and a power transmitting module. A jacket mounted on a terminal is provided with a power receiving device side passive electrode, a power receiving device side active electrode, a power receiving module, and a DC-DC converter. A heat sink portion with fins is formed on a portion of the power transmitting device side passive electrode. When the terminal is mounted on the power transmitting device, the power receiving device side passive electrode is electrically connected to the power transmitting device side passive electrode, and the power receiving device side active electrode faces the power transmitting device side active electrode. In this state, the heat of the power receiving module and the DC-DC converter is dissipated from the power transmitting device side passive electrode.
Abstract translation: 电力传输装置的壳体设置有电力传输装置侧无源电极，发电装置侧有源电极和电力传输模块。 安装在端子上的护套设置有受电装置侧无源电极，受电装置侧有源电极，受电模块和DC-DC转换器。 在动力传递装置侧被动电极的一部分上形成有散热片的散热部。 当端子安装在电力传输装置上时，受电装置侧无源电极电连接到电力传输装置侧无源电极，受电装置侧有源电极面向电力传输装置侧有源电极。 在这种状态下，受电模块和DC-DC转换器的热量从发射装置侧的被动电极消散。
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公开(公告)号：US10191119B2
公开(公告)日：2019-01-29
申请号：US14858136
申请日：2015-09-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shinji Goma , Kazuya Kato
Abstract: An inspecting apparatus is for a noncontact power transfer system that transfers electric power from a transmitting unit to a receiving device in a noncontact manner. The inspecting apparatus includes a coupling capacitance varying unit configured to vary at least one of a first coupling capacitance formed between a transmitting-side passive electrode and a receiving-side passive electrode and a second coupling capacitance formed between a transmitting-side active electrode and a receiving-side active electrode when the receiving device is placed on the transmitting unit, and a control unit configured to monitor an alternating-current voltage generated between the receiving-side passive electrode and the receiving-side active electrode of the receiving device or a direct-current voltage obtained through conversion by a rectifying circuit.
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公开(公告)号：US10033217B2
公开(公告)日：2018-07-24
申请号：US14632704
申请日：2015-02-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shinji Goma , Kazuya Kato , Tsutomu Ieki
IPC: H02J7/02 , H02J50/80 , H02J50/12 , H01F37/00 , H02J50/40 , H02J50/70 , H02J50/10 , H02J17/00 , H01F38/14 , H02H7/10 , H02J5/00 , H02M3/22 , H02J50/05 , H01Q1/00
Abstract: A wireless power receiver device includes a sheet-like electrode sheet section and a power receiver section. The electrode sheet section includes a power receiver side active electrode and a power receiver side passive electrode that are substantially coplanar and formed into sheet-like shapes; lead lines that are coplanar with both the electrodes, extended from the respective electrodes, and formed into sheet-like shapes; and an insulation sheet that covers both the electrodes and both the lead lines from both sides thereof. The power receiver section includes a step-down unit that steps down an alternating-current voltage induced between end portions of the lead lines; a power receiver module that rectifies and smoothes the alternating-current voltage that is stepped down by the step-down unit; and a connector for outputting an output voltage of the power receiver module.
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公开(公告)号：US09800063B2
公开(公告)日：2017-10-24
申请号：US14947351
申请日：2015-11-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuya Kato
Abstract: A power transmission device includes an AC power generator for generating an AC voltage and applying it to first and second power transmission electrodes. A controller controls the AC voltage applied to the first and second power transmission electrodes. To this end, the controller monitors the voltage on the first electrode and determines how that voltage changes at the beginning and end of each of a plurality of predetermined time intervals, monitors the voltage on the second electrode and determines how that voltage changes at the beginning and end of each of the plurality of predetermined time intervals, and determines when to cut off the application of the AC voltage to the first and second power transmission electrodes as a function of the manner in which the voltage on those electrodes changes at the beginning and end of at least one of the predetermined time intervals.
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