CN102820685A - 无线电池充电装置以及其方法和系统 - Google Patents
无线电池充电装置以及其方法和系统 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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Abstract
所揭露的是一种无线电池充电装置,方法以及系统。一传送器可将射频无线功率信号传送到一电池充电装置,以及一容置在该电池充电装置内的接收器,其可射频无线能量信号。电池充电装置此后可将所接收到的射频无线能量信号传文到一电池接收部,以对电池充电;在一实施例中,射频无线能量信号是以13.56MHz的频率来传送以克服影子仿效(waveshadowing)。一电池充电回馈控制电路可选择性地和该电池充电装置相合并,并可监控射频无线能量信号的频率。
Description
技术领域
本发明是有关于以无线的功率讯号来对电池充电。尤其地,本发明是有关于一种以无线的射频(RF)信号来对电池充电的装置、方法以及系统。
背景技术
电池己逐渐成为手持式电子装置,诸如是手机、笔记型计算机以及数字像机等装置极受欢迎的能源。依其结构,一个单一的电池可以对一电子装置提供数小时的电力,并可使得该装置不再需要另行地插入墙上插座或其它电源。然而,因为其产生电流的电化学反应,由电池所提供的动力仅是暂时的。因此,使用者往往在使用了数次后,就被迫丢弃该电池了。
业界努力地提供了可充电式电池以及电池充电系统,以避免传统电池所遭逄到的浪费及成本上的支出。现行的充电系统包括了一充电器,其可将电池固定于位上,并提供电池电能,其提供的方式则是产生一相反于放电时电子流方向的电子流。动力则是以相反于由电池输出动力时的方式而储存在电池内。然而传统的充电系统需要一种以接触为本质的充电方法,也就是说,使用者必须由相关的装置上或是容器中将电池取出,并将电池一一地摆在充电器内。
因为传统接触式电池充电系统的缺点,无线或“无接触式”电池充电在近年来已有着许多显著的发展。这些无接触式系统可在例如是电动牙刷中发现,其中,当牙刷放入可使其直立站立的充电器内时,即开始对电池充电。虽然牙刷的塑料和充电器间仍有接触,但电池本身并不和充电器内的金属充电机构相接触,因此这类的系统仍归类为“无接触式”。甚至,还成立了一个企图以传统方式来标准化无接触式对电池充电的无线联盟。然而传统无接触式充电系统使用例如是在充电器内所设置的传导线圈所产生的磁场来对电池充电。但使用磁场来对电池充电则无法对具有一定距离的电池充电,并且仅对于近距离的单一或仅仅少数的装置适用。
锂离子电池是一种强大且受欢迎的电池,但其亦隐含着安全上的顾虑,基于政府的规定,这类的电池必需在部份放电的情形下才能加以运送。像所有的电池一般,锂电池既使在未使用状况下,仍会慢慢的放电,并且,在放电达到一定的临界值时,就会永久的遭受到损害。含有锂电池在内的电子装置极有可能会在被顾客购买时,其内部的电池基于安全规定而必须部份予以放电,或者是在仓库内以及在零售店的售货架上等着被顾各购买时而遭到额外的放电。
除了传统短程的磁场充电外,许多人均曾尝试用不同的方法着来产生足够的远程的充电方法。例如,美国专利号码7288918,发明人为DiStefano使用较长距离的射频以对电池充电电路发射一功率信号。DiStefano揭露了一般的方块图结构,其中,一个有效连接到电池上的电源充电器接收一种由功率发生器所传送出来的载波信号来对电池充电。DiStefano系统需要用以产生以及传递一调制信号的手段,而其调制则是频率调制、振幅调制以及相位调制中的一种。相当复杂的DiStefano系统尚需要一功率接收电路以及一个储存来自功率接收电路的能量的存储电路,直到存储到足够的能量,以传送到电源充电电路。该射频能量信号是以一预定的功率以及载波来传送,并不会根据充电电池的需求而改变。此外,依据所传送信号的性质,能量必须要在足够的时间内储存和监控/测量或确认其已足够,以便传送到一充电电路来对电池充电。DiStefano并没有揭露任何用于射频能量信号的特定频率,其仅揭示了射频电池充电的一般概念。
发明内容
本发明提供了一种简单的系统以及方法,以直接地对独立存在或在距离较长的不同装置内的电池加以充电,例如对存储/出货/设备使用中的锂电池进行大范围的再充电。本发明描述了一种用于对多个电池在同一时间充电的装置、方法和系统。所公开的是一种无接触式的电池充电技术,其中射频波是以一特定的频率而传送到一个或多个电池,并且结合一个反馈系统有选择的使用不同数量的射频信号。
尤其地,本发明公开描述的是一种用于电池充电的简单、便宜的系统以及方法,包括了发送器,其是在将一无线射频能量信号以无线射频辨识系统
(RFID)之一来传送出去,且是包括了约125K Hz、13.56M Hz、或915M Hz(个别地是称之为RFID频率)。本发明的系统以及方法尚包括了一射频传送器,其在于传送一无线射频功率信号,或许多信号以及一射频信号接收装置以及一连接于电池正负极或是连接于电池上的电池充电接收装置,以电的方式将能量传送到电池,以对电池充电。藉由射频接收器,电池充电接收器以及作为是整个电池组一部份的电池接收部,每一电池均有其本身低成本的接收器,以接收无线射频功率信号,并每一电池组均可将所接收到能量电性地传送到各自的电池,以便在射频无线能量信号的范围内对电池充电。
本发明同时所揭露的是一种电池充电方法,其包括了下列的步骤:接收以无线射频辨识系统(RFID)的一频率发送的射频无线信号、将射频无线能量信号传送到一电池接收部、以射频无线信号来对容置在电池接收部内的电池加以充电。由于每一个接收器以及电池接收部均是作为电池组的一部份,每一个电池都具有其自己本身低价的接收器,是设计成可接收该射频无线能量信号,并且每一个电池组则是设计成可藉由电性的方式来传送能量,以便对位在射频无线能量信号范围内的电池充电。
此外,本申请案公开了一种电池充电反馈系统,其包括了一主收发器,其是在于发送一射频无线功率信号,该主收发器尚包括了一个能量调整电路,其是在于调整射频无线能量信号的频率,以便传送,以及一次要收发器,其是在于接收该射频无线能量信号,并决定该射频无线能量信号的频率,以及传送所决定频率的能量讯息到主收发器。
本申请案公开的内容在于避免已知系统复杂的结构模块,并提供一种简单、便宜可对电池/电池组充电的充电系统,而该电池或电池组可以是处于运送的中继过程或是摆在售货架上贩卖或是使用于一电子装置内。根据本发明的系统以及方法可以以一常数的方式而经常的传送出高能量来对存放中的电池充电,或是和一回馈机制来共同传送,而该回馈机制则可能用以监控以及调节上述的传送,以作为外部考虑的一种功能,例如电池存放状态或是包括了存放日期的长久、现况以及人类在建物内靠近的状况或是电力需求管理考虑等等各种关于建物的考虑。
附图说明
为了能加速明白所欲保护对象,附图显示着本发明的各实施例,观察本案附图合并着下列的说明当可轻易地了解并认可欲获得保护的对象、其结构以及运作,以及其许多的优点。
详细说明特别地提到所附的附图,其中
图1是本发明一实施例方框图;
图2是电池充电装置的一般电路图;
图3是一更详细的电池充电装置的电路图;
图4是一电池充电回馈系统的电路逻辑图;
图5是一具有回馈机构于内的电池充电系统于一实施例内的流程图;
图6是电池充电系统回馈机构于第二实施例的流程图。
具体实施方式
在本发明可适用于各种不同的方式下,本发明将由所附附图来加以详细说明其实施例,然其应了解的是,本发明所公开者仅是作为说明本发明概念上的范例,其并不在于企图以所示的实施例来限制本发明最宽广的范围。
图1所示的是根据本发明之电池充电系统100的一般方框图。如图所示,电池充电系统100包括了一发送器105,其是在于传送一射频无线功率信号到一电池充电装置110。一电池容置部115是和电池充电装置110以功能上相互连通,并是用以保持一电池120于定位,并对该电池120充电。
发送器105只要可以传送射频无线功率信号到一接收器,它可以是任何装置或是一些装置的组合。发送器105也可以是用以接收来自电池充电装置110的无线通讯。在一实施例中,该发送器105是以无线射频辨识系统(RFID)的一频率发送射频无线功率信号,且是包括了约125K Hz、13.56M Hz、或915M Hz(个别地是称之为RFID频率)中的一种。在一较佳的实施例中,该发送器以约13.56M Hz的频率发送,其是相同于目前在无线射频辨识系统
(RFID)实施的许多频率相同的。本申请案的发明人认为13.56M Hz的发送频率可在发送器105和电池充电装置110之间让更高等级的功率得以传送到更远的距离。此外,13.56M Hz的发送频率对于波形效仿(wave shadowing)有着更高更大的宽容度,也就是位在前方的电池会仿效位在后方电池的信号。13.56M Hz的发送频率波在前方电池的四周弯曲,以可产生射频充电系统更大的覆盖区域。
电池充电装置110可以是能接收来自发送器105发出之射频无线能量信号的电器组件的组合,并将所接收到射频信号运用于电池120上以对电池充电。在一实施例中,电池充电装置110是一电池组一部份的电子电路,其详细情形则如下列参考图2和图3的详细说明。
电池容置部115,在作为电池组的例子中其除了具有电池基本功能外,其尚具有其它的功能,且可以是任何能够固定或是和一电池互动的结构,并能够提供电池的充电。例如,该电池容置部115可以是一充电器、一容器、两段的组合,或任何态样的结构,只要可以电性地将电池充电装置110连结到电池120都可以。在一较佳的实施例中,该电池容置部115包括了作为整体电池组一部的正极和负极,以加快电子流入电池120内。
图2显示的是一更为详细的电池充电装置110的结构图。如图所示,该电池充电装置110包括了一接收器125,其是和一整流器130耦合在一起,而该整流器130则又是和一电池充电电容135功能性地相连通。如上所述,电池120是透过电池容置部115来和该电池充电装置110相耦合。在电池组的实施例中,该电池充电装置是在电池组内的一个微小的组件,如此,该电池以及电池充电装置可以有效地整合成为单一的整体。
该接收器125可以是任何的装置,只要它是可以接收射频无线能量信号的都可以。在一实施例中,该接收器125是一天线,例如是卷标天线,其是和该整流器电路130耦合在一起,并且可接收来自该发送器105的信号。整流器125是和整流器电路130连结在一起,如此接收到的交流电(AC)信号才可以转换成为一直流(DC)信号,然后则是选择性地传送到电池充电电容135。一旦由电池充电电容接收后,当储存的电池充电电容135的电荷克服了电池充电电容135的电位,而可让荷流到和电池容置部115相连结的电池120时,电荷即可传送到电池120。
图3显示的是根据本申请案更详细的有关于电池充电装置110的电路图。如图所示,该电池充电装置110包括了一个和其并联的第一电容器140相连接的接收器125,而该第一电容器140可以是一可调整的电容器。由该接收器125所接收到的射频能量信号可透过该第一电容器140而传送到包括了第二电容器145、一第一晶体管150、以及一第二晶体管155的电路。和天线125相并联的是一积纳二极管160,在若是所传送的电压超过某一预定的临界值,例如是14V时,该积纳二极管160会保护整体的电路。电池充电装置110可以另行的包括一电阻165以及第三电容器170,在功率信号到达电池充电电容器135之前,可加入一电压调节器175来管理最终是供应到电池120的电压。
如上所述,该积纳二极管160是用于电池充电装置110的整体保护。选择性地,该积纳二极管160是可自电池充电装置10中予以去除,而至少该第一晶体管150以及该第二晶体管155中的一个可以保持较高的崩溃电压(breakdown voltage)。所述的电路,或是实质上具有类似功能的其它电路可在特殊应用集成电路(ASIC)或是半导体芯片上实施。该接收器芯片可附着在卷标天线上以显著地少封装的尺寸以及成本的支出。
图4显示的是根据本申请案的另种电池充电回馈系统400。该回馈系统400是和一主收发器405而共同运作,以可对位在一电池固定座415内的一个或多个电池无线充电。此外,一个或是多个次要的收发器420可置于由该主收发器405所产生的信号场远程。一功率调整电路425可以功效相连通的方式来和该主收发器405连结,并可用以加强或减少由该主收发器405所发射频无线信号的功率。
电池固定座415可以是任何的装置或结构,只要它可以将一个或多个电池固定,以可让无线射频来对电池充电即可。在一实施例中,该电池固定座415包括了复数个开口,其设计的方式是可在每一开口中容置一个电池410,并其容置的方式则是从一电池的后侧到位在其后方电池的前侧距离是一吋。本发明人发觉电池间垂直间距大约一吋的话,则可有助于预防波形效仿(wave shadowing)的发生,并让所有的电池410能够更有效的充电。将电池410并排是可行的,只要电池410的垂直间距是至少一吋,以可容置和电池410连结在一起的电池充电装置110的接收器125。在这实施例中,电池410是可耦合于或是直接地位在电池充电装置110的后方以达到较佳位置的摆放。在实施本发明所述的电池运送以及储存时,该电池固定座415可以是一专用以运送复数个电池的包装/纸箱。
在回馈系统400中,该次要收发器420可以量测或是感测由该主收发器405所产生的射频信号,并和该主收发器405以及/或该能量调整电路425相连通,以改变由该射频无线能量信号所传递的能量。该次要收发器420可以,例如,由本身的电池或是壁上电源插孔而自行启动,或是由该射频无线功率信号来启动,并含有如上述的电充电装置110。另外,该次要收发器420不需要一个专用的电池充电装置110,然而,其仍然可以在不使用电池或是特定的充电电路下来接收以及处理射频能量信号。
如图5以及图6所示,该电池充电回馈系统400可以在许多不同的方式下来操作,以确保由该主收发器405所提供的能量可以有效的运用。如图5所示,在射频无线能量信号由该次要收发器420接收处,整个流程随即开始,并进行到S505。该次要收发器420随即可以侦测所接收到信号S505的强度,并将显示该信号强度的信息传递回到该主收发器405。一旦该信号由该主收发器405所接收,随即可知该信号的强度是否较原先预定的临界值S520来的高,以及该主发送器所需要的信号强度是否需要由该能量调整电路予以增加,以有效地传送射频无线能量信号。
使用如图5所示的方法,该电池充电回馈系统400可以有效地将能量信号传递到电池410,而该次要收发器420则可将关于所接收到信号强度的信息传送回到该主收发器405,来调整所传递能量的位阶,这么一来过多或是不足的能量就不会由该射频无线信号来传递。
在另一个实施例中,图6显示的是一种无线充电回馈系统,其中,在该次要收发器420并未和该主收发器405相连通的情形下,该能量调整电路425增加信号的强度。在此方式下,若是主发送器405并未收到显示着射频无线信号已成功地传送到该次要收发器420时,则主收发器405明白该信号的强度是并不足够的。
尤其地,在射频无线信号是由该主发送器405传送到电池410,并进行到次要收发器420。在步骤S610处,可决定射频无线信号是否已由该次要收发器420接收,并决定信号的强度是否需加以调整。若是该次要收发器420在一预定的时间内并未提供一个“讯号已接收”的信号,该主发送器405将确定射频无线能量信号的能量是不足的,并且命令该功率调整电路425来增加主发送器的能量,其则如S615所示。然而,若该信号确已由该次要收发器420所接收,则接续到S620,信号也不会增加。选择地,该次要收发器420可传送一信号到该主收发器405,且该主收发器405是具有已接收S625能量调整的射频信号。
通过参考图5和图6所示的方法讨论着该主收发器405和该次要收发器420作为将关于射频无线信号的能量等级信息传递的收发器。然而,该主收发器405和该次要收发器420亦可传递其它的信息,例如,关于电池的信息、温度、电流、电流、电压、时间、序号、型号或是其它电池充电或是管理参数,以及正在充电之电池的组件数。
此外,将存在于次要收发器420内的无线收发电路置于每一个电池组410内是可能的。在这种安排下,电池组本身可以直接地和该主发送器或是任何主机连通,以传送关于充电状况、电池、温度、电流、电流、电压、时间、序号、型号或是其它电池充电或是管理参数,以及正在充电之电池的组件数,以及其它的信息。其它的信息可在该主收发器405、次要收发器420以及电池充电装置110之间于需要时相互传递。
如上所述,该电池充电装置110是可和其供应电源的该电池120相依附或是成为整体的一部。此外,一个单一的电池流电装置110可对复数个电池充电,或复数个电池充电装置110在需要时可对单一个电池充电。
上面所述的结构已和电池充电装置110一并讨论过,且该电池充电装置110是专用于一个和固定电池的容器无关的电池,以及和电池距离一段相当距离的发送器105也一并讨论过。然后,该发送器105可置于一可重复使用的储存箱,以可在箱内对电池充电。选择性地,该发送器105可置于一桌面或平面上,或是置于桌面或平面下,并且透过该桌面或是抽屉来发送一功率信号来对位在别处的电池组充电。选择性地,该发送器105亦可固定在一位置上或是在一位置的附近移动、设置在一仓库内或是其它用以储存具有电池于其内之电子装置的设施之内。
以上所提之说明以及所附附图,连同着所提供的范例均在在作为说明的作用,并不是用于限制之用。尤其特别地,各种实施例均已加以显示以及说明,对于那些熟于此项技艺者而言,各种的改变以及修改均可在不离本申请人努力所作之较大范围下而显得显而易见。所欲寻求真实的保护,在基于习用技艺并参考着其适当的角度下,是由权利要求来加以界定的。
Claims (20)
1.一种电池充电系统,其特征在于,包括了:
一传送器,其是以射频识别频率来传送一射频无线号;
一电池充电装置,其是以无线的方式和该传送器相连通并具有:
一接收器,其是用以接收射频无线能量信号;以及
一电池接收部,其是具有一正极以及负极,用以电性的方式以射频识别频率来将荷传送到电池,以对电池充电。
2.根据权利要求1所述的电池充电系统,其特征在于,所述电池充电装置尚具有一整流电路,其是电性地连接该接收器,并用以将射频无线功率信号由交流电信号转换成为直流电信号。
3.根据权利要求1所述的电池充电系统,其特征在于,还包括:
一次要收发器,其是以无线的方式和该发送器相连通,该次要发送器是用以:
由该发送器接收射频无线功率信号,并侦测射频无线功率信号的所接收信号的等级;以及
其中,该发送器尚具有一收发器,其是用以接收该已接收信号等级;以及
一功率调整电路,其是功能性地和该发送器相连通,并是用以调整一射频无线功率信号的功率量,并在基于由该发送器所传送的信号等级来加以传送。
4.根据权利要求1所述的电池充电系统,其特征在于,还包括:
一次要收发器,其是用以:
以无线的方式和该传送器相连通;
接收来自该传送器的射频无线能量信号,并侦测该射频无线能量信号是否已接收;
其中,该传送器尚具有:
一传送器接收器,其是用以接收显示射频无线能量信号是否已接收的信号;以及
一能量调整电路,其是以功能性的方式来和该传送器接收器相连通,并用以调整射频无线能量信号的频率,以在未接获显示射频无线能量信号是否已接收的信号下,传送该射频无线能量信号。
5.根据权利要求3所述的电池充电系统,其特征在于,所述次要收发器包括了一充电电路,其是用射频无线能量信号以对次要收发器提供动力。
6.根据权利要求3所述的电池充电系统,其特征在于,所述次要收发器是电池整体的一部份或是依附于电池。
7.亠种电池充电方法,其特征在于,其包括了:
接收以约13.56MHz频率发送的射频无线能量信号;
将射频无线能量信号传送到一电池接收部;
利用该射频无线能量信号对容置于该电池接收部内的电池充电。
8.根据权利要求7所述的电池充电方法,其特征在于,还包括:
将所接收到的射频无线功率信号传送到一整流器,以将该射频无线功率信号由交流信号转换成为直流信号。
9.根据权利要求7所述的电池充电方法,其特征在于,还包括:
在一次要收发器处接收射频无线能量信号;
侦测该射频无线能量信号的信号等级;
将显示着已接收信号等级的信息传递到该主收发器;以及
根据主收发器所传递的信号等级,调整准备传送的射频无线能量信号的频率。
10.根据权利要求7所述的电池充电方法,其特征在于,还包括:
提供一个用以在该次要收发器处接收之射频无线能量信号的结构;
确认射频无线能量信号已接收;
将确认射频无线能量信号是否已接收的讯息传送到该主收发器;
基于射频无线能量信号是否已接收的信号下,调整准备发送之射频无线能量信号的频率。
11.根据权利要求9所述的电池充电方法,其特征在于,还包括:
由所述次要收发器传送一信号到该主收发器,指示由该次要收发器所接收的射频无线能量的频率确实已调整。
12.根据权利要求9所述的电池充电方法,其特征在于,还包括:
在所述主收发器以及该次要收发器之间,将至少关于电池,电容,温度,电流,电压,时间,序号,型号以及正在充电之电池组件数的一讯息作交流。
13.一电池充电回馈系统,其特征在于,包括:
一主收发器,是用以传送一射频无线能量信号,该主收发器尚包括了一能量调整电路,其是用以调整一准备传送之射频无线能量信号的频率;以及
一次要收发器,其是用以接收该射频无线能量信号,并确认该射频无线能量信号的频率;以及将已确认的能量传送到该主收发器。
14.根据权利要求13所述的电池充电回馈系统,其特征在于,还包括了一电池,其是该次要收发器整体的一部份是依附于该电池。
15.根据权利要求13所述的电池充电回馈系统,其特征在于,所述能量调整电路是用以在基于在未接收到射频无线能量信号的情形下,调整准备发送之射频无线能量信号的频率。
16.根据权利要求13所述的电池充电回馈系统,其特征在于,所述次要收发器包括了一电源电路,其是用以藉由射频无线能量信号来对该次要收发器提供动力。
17.根据权利要求13所述的电池充电回馈系统,其特征在于,还包括了:
一电池充电电路,是以无线的方式来和该主收发器相连通,该电池充电电路包括了:
一接收器,是用以接收射频无线能量信号;
一电容器,是以功能的方式来和该接收器相连通,且是用以维持着由该射频无线能量信号所提供的电力;以及
一电池容置部,其是具有一正极以及一负极,并是用以维持着一电池,并对该电池提供充电。
18.根据权利要求17所述的电池充电回馈系统,其特征在于,还包括了一整流电路,其是电性地和该接收器以及该电容器相连接,且是用以将该射频无线能量信号由交流信号转换成直流信号。
19.一种用以在电池组中对一电池充电的池充电装置,其特征在于,具有:
一射频接收天线,其是整合于该电池组内;
一整流器电路,其是整合于电池组内,并对由射频接收天线所接收到的信号加以整流并提供一整流的信号;以及
一电池连接部,其是整合于电池组内,且包括了一正极以及一负极,是用以将由整流后信号的动力传送到该电池,以对电池充电。
20.根据权利要求17所述的用以在电池组中对一电池充电的池充电装置,其特征在于,整合于所述电池组内的接收天线以13.56MHz接收一射频信号。
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CN104077619A (zh) * | 2013-09-25 | 2014-10-01 | 苏州天趣信息科技有限公司 | 一种提升射频识别讯号传输距离的装置及其组合 |
CN107039772A (zh) * | 2015-10-28 | 2017-08-11 | 艾诺格思公司 | 用于无线充电系统的天线 |
CN113258961A (zh) * | 2021-05-12 | 2021-08-13 | 北京布莱迪测控仪表有限公司 | 一种无线充电方法、接收器及发射器 |
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