CN110356261A - 基于磁耦合谐振式的电动自行车无线充电桩*** - Google Patents
基于磁耦合谐振式的电动自行车无线充电桩*** Download PDFInfo
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Abstract
本发明涉及一种基于磁耦合谐振式的电动自行车无线充电桩***,包括具有发射端装置的无线充电桩和设于电动自行车上的接收端装置;发射端装置包括AC/DC整流模块、DC/DC辅助电源、双路E类高频逆变模块、发射线圈、监测电路、控制单元和通信单元,AC/DC整流模块的输入端连接电网,输出端分别连接DC/DC辅助电源和双路E类高频逆变模块,双路E类高频逆变模块的输出端连接发射线圈,DC/DC辅助电源为其他模块供电;接收端装置包括接收线圈、高频整流模块、DC/DC调压模块、DC/DC辅助电源、待充电池、监测电路、控制单元和通信单元,接收线圈的输出端经高频整流模块连接DC/DC调压模块,DC/DC调压模块的输出端分别连接待充电池和DC/DC辅助电源,DC/DC辅助电源为其他模块供电。该***使用安全可靠,充电效率高。
Description
技术领域
本发明涉及无线充电技术领域,具体涉及一种基于磁耦合谐振式的电动自行车无线充电桩***。
背景技术
随着我国经济持续增长和城乡居民收入水平的提高,人们对于出行要求也不断提高,由于电动自行车便捷、环保、经济等特点,深受大众喜爱,成为节能环保的一种代步工具,近些年,电动自行车市场呈现出稳定的发展势头。然而由于国内缺乏合理的管理措施和电动自行车停放布局设计,电动自行车在公共场合缺乏安全、便捷的充电场所,人们多数通过家用插排进行充电。但是充电所使用的适配器,没有统一的标准,存在较大的安全隐患。而且多数充电桩也只是提供一个充电平台,并没有实质性的改善电动车充电安全。
无线电能传输技术具有传统缆线供电方式所不及的独特优势,可以极大地提高设备供电的可靠性、便捷性和安全性。磁耦合谐振式无线电能传输技术是利用谐振的原理,实现能量的高效传输,是目前中远距离无线电能传输的主要技术。
专利CN207481675U提供了一种利用锁车定位的电动自行车无线充电装置,包括电动自行车和无线充电桩,所述电动自行车上安装有用于与无线充电桩上锁车机构相互琐和的自行车锁,无线充电桩在锁车机构的上方位置处设有无线充电发射端,无线充电发射端与电动自行车上处于自行车锁上方的无线充电接收端的位置相对,充电接收端通过输出电缆与安装在电动自行车的电池电性连接,充电桩内设有无线充电发送端的无线控制器。专利CN106685033A提供了一种电动自行车无线充电***,发射端包括发射线圈,全桥高频逆变电路、AC-DC开关电源、发射端辅助电源,原边控制电路、驱动电路、原边无线通信模块和电压调节电路,接收端包括接收线圈、整流滤波电路、车载电池、检测电路、接收端辅助电源、副边控制电路、用户交互界面、副边通信模块。但现有的一些电动自行车无线充电桩在技术上普遍存在以下缺点:1、无线电能传输***中,高频电源的拓扑结构大多采用全桥或半桥拓扑,当拓扑工作频率较大,高频逆变电路存在较大的损耗,影响了无线电能***的传输效率。2、现有电动自行车无线充电桩大多是针对特有车型设定,发射端和接受端都是在特定条件下进行无线电能传输,而市场上电动自行车产品种类繁多,大小、高低各不相同,充电的电压及电流也不尽相同。
发明内容
本发明的目的在于提供一种基于磁耦合谐振式的电动自行车无线充电桩***,该***使用安全可靠,充电效率高。
为实现上述目的,本发明的技术方案是:一种基于磁耦合谐振式的电动自行车无线充电桩***,包括具有发射端装置的无线充电桩和设于电动自行车上的接收端装置;
所述发射端装置包括AC/DC整流模块、发射端DC/DC辅助电源、双路E类高频逆变模块、发射线圈、发射端监测电路、发射端控制单元和发射端通信单元,所述AC/DC整流模块的输入端连接电网,输出端分两路,一路连接发射端DC/DC辅助电源,另一路连接双路E类高频逆变模块,所述双路E类高频逆变模块的输出端连接发射线圈,所述发射端DC/DC辅助电源为发射端监测电路、发射端控制单元和发射端通信单元供电,所述发射端控制单元分别与发射端监测电路、发射端通信单元通讯连接,所述发射端监测电路用于检测发射线圈的输出电压和电流,所述发射端通信单元用于与互联网智能终端平台通信;
所述接收端装置包括接收线圈、高频整流模块、DC/DC调压模块、接收端DC/DC辅助电源、待充电池、接收端监测电路、接收端控制单元和接收端通信单元,所述接收线圈的输出端经高频整流模块连接DC/DC调压模块,所述DC/DC调压模块的输出端分两路,一路连接待充电池,另一路连接接收端DC/DC辅助电源,所述接收端DC/DC辅助电源为接收端监测电路、接收端控制单元和接收端通信单元供电,所述接收端控制单元分别与接收端监测电路、接收端通信单元通讯连接,所述接收端监测电路用于检测接收线圈的输入电压和电流,所述接收端通信单元用于与互联网智能终端平台通信。
进一步地,还包括互联网智能终端平台,所述互联网智能终端平台分别与发射端装置、接收端装置通信连接,以分别向发射端装置、接收端装置发送控制命令,以及接收发射端装置、接收端装置的工作状态信息,所述互联网智能终端平台与用户的移动终端通信连接,以根据用户的选择打开指定的无线充电桩,设置充电具体参数。
进一步地,所述无线充电桩包括升降机构,所述发射端装置设于升降机构上以在其驱动下上下运动,所述无线充电桩上部设有充电安装座,所述充电安装座设置于正对发射端装置的发射线圈的正上方;所述接收端装置的接收线圈和高频整流模块设置在可拆卸充电模块上,并通过连接线缆与接收端装置的其他模块连接,所述可拆卸充电模块与充电安装座相适应,以在充电时将可拆卸充电模块从接收端装置上拆卸下来,安装在充电安装座上进行充电。
进一步地,所述升降机构主要由设置于无线充电桩内的若干电缸机构构成,所述发射端装置设置于电缸机构的丝杆上,以在电缸机构的驱动下上下运动。
进一步地,所述无线充电桩底部设有散热装置。
进一步地,所述发射端控制单元与升降机构的控制端连接,以在充电时根据通信单元接收到的充电具体参数,控制升降机构调整发射端装置与充电安装座的距离,从而调整输出电压和电流。
进一步地,双路E类高频逆变模块包括由AC/DC整流模块提供的直流电压源,MOSFET开关S1、S2,以及并联电容C f1、C f2,直流电压源输出分两路,一路串联开关S1、并联电容C f1,另一路串联开关Ss、并联电容C f2,两路输出与发射端并联,发射端包括补偿线圈L 1eq 、发射线圈L 2eq 、等效电容Cm12、环路等效电阻R 1、R 2以及补偿电容C1、C2,其中发射线圈L 2eq 与电容C2、电阻R 2串联后与等效电容Cm12并联,补偿线圈L 1eq 与电阻R 1串联于等效电容Cm12与发射线圈L 2eq 、电容C2、电阻R 2构成的并联结构上,通过发射线圈L 2eq 与接收线圈L 3eq 进行耦合来传输能量。
与现有技术相比,本发明具有以下有益效果:通过磁耦合谐振式无线电能传输方式改变了传统的有线充电方式,提高了电动自行车充电桩的安全性和可靠性,且电源适配器的主拓扑结构采用双路E类拓扑结构,相对于半桥和单激式拓扑结构,具有更高的传输效率和功率输出。此外,该***能够适应更多种类电动自行车车型,不需要对电动自行车进行特殊的固定,方便用户进行使用,使用快捷方便。
附图说明
图1是本发明实施例的***原理框图。
图2是本发明实施例中无线充电桩的结构示意图。
图3是本发明实施例中基于双路E类高频逆变模块的WPT***电路原理图。
具体实施方式
下面结合附图及具体实施例对本发明作进一步的详细说明。
本发明提供一种基于磁耦合谐振式的电动自行车无线充电桩***,如图1所示,包括具有发射端装置的无线充电桩和设于电动自行车上的接收端装置。
发射端装置包括AC/DC整流模块、发射端DC/DC辅助电源、双路E类高频逆变模块、发射线圈、发射端监测电路、发射端控制单元和发射端通信单元,AC/DC整流模块的输入端连接电网,输出端分两路,一路连接发射端DC/DC辅助电源,另一路连接双路E类高频逆变模块,双路E类高频逆变模块的输出端连接发射线圈,发射端DC/DC辅助电源为发射端监测电路、发射端控制单元和发射端通信单元供电,发射端控制单元分别与发射端监测电路、发射端通信单元通讯连接,发射端监测电路用于检测发射线圈的输出电压和电流,发射端通信单元用于与互联网智能终端平台通信。
接收端装置包括接收线圈、高频整流模块、DC/DC调压模块、接收端DC/DC辅助电源、待充电池、接收端监测电路、接收端控制单元和接收端通信单元,接收线圈的输出端经高频整流模块连接DC/DC调压模块,DC/DC调压模块的输出端分两路,一路连接待充电池,另一路连接接收端DC/DC辅助电源,接收端DC/DC辅助电源为接收端监测电路、接收端控制单元和接收端通信单元供电,接收端控制单元分别与接收端监测电路、接收端通信单元通讯连接,接收端监测电路用于检测接收线圈的输入电压和电流,接收端通信单元用于与互联网智能终端平台通信。其中,发射端控制单元、接收端控制单元可以采用
本发明还包括互联网智能终端平台,互联网智能终端平台分别与发射端装置、接收端装置通信连接,以分别向发射端装置、接收端装置发送控制命令,以及接收发射端装置、接收端装置的工作状态信息,互联网智能终端平台与用户的移动终端通信连接,以根据用户的选择打开指定的无线充电桩,设置充电具体参数。
图2是本实施例中无线充电桩的结构示意图。如图2所示,无线充电桩包括升降机构1,发射端装置2设于升降机构1上以在其驱动下上下运动,无线充电桩上部设有充电安装座3,充电安装座3设置于正对发射端装置2的发射线圈4的正上方,无线充电桩底部设有散热装置5。接收端装置的接收线圈和高频整流模块设置在可拆卸充电模块上,并通过连接线缆与接收端装置的其他模块连接,可拆卸充电模块与充电安装座相适应,以在充电时将可拆卸充电模块从接收端装置上拆卸下来,安装在充电安装座上进行充电。在本实施例中,升降机构主要由设置于无线充电桩内的若干电缸机构构成,发射端装置设置于电缸机构的丝杆上,以在电缸机构的驱动下上下运动。
在本实施例中,发射端控制单元与升降机构的控制端连接,以在充电时根据通信单元接收到的充电具体参数,控制升降机构调整发射端装置与充电安装座的距离,从而调整输出电压和电流。
图3是本实施例中基于双路E类高频逆变模块的WPT***电路原理图。如图3所示,本发明中高频电源采用了双路E类逆变器差分拓扑结构,双路E类高频逆变模块包括由AC/DC整流模块提供的直流电压源,MOSFET开关S1、S2,以及并联电容C f1、C f2,直流电压源输出分两路,一路串联开关S1、并联电容C f1,另一路串联开关Ss、并联电容C f2,两路输出与发射端并联,发射端包括补偿线圈L 1eq 、发射线圈L 2eq 、等效电容Cm12、环路等效电阻R 1、R 2以及补偿电容C1、C2,其中发射线圈L 2eq 与电容C2、电阻R 2串联后与等效电容Cm12并联,补偿线圈L 1eq 与电阻R 1串联于等效电容Cm12与发射线圈L 2eq 、电容C2、电阻R 2构成的并联结构上,通过发射线圈L 2eq 与接收线圈L 3eq 进行耦合来传输能量。
以上是本发明的较佳实施例,凡依本发明技术方案所作的改变,所产生的功能作用未超出本发明技术方案的范围时,均属于本发明的保护范围。
Claims (7)
1.一种基于磁耦合谐振式的电动自行车无线充电桩***,其特征在于,包括具有发射端装置的无线充电桩和设于电动自行车上的接收端装置;
所述发射端装置包括AC/DC整流模块、发射端DC/DC辅助电源、双路E类高频逆变模块、发射线圈、发射端监测电路、发射端控制单元和发射端通信单元,所述AC/DC整流模块的输入端连接电网,输出端分两路,一路连接发射端DC/DC辅助电源,另一路连接双路E类高频逆变模块,所述双路E类高频逆变模块的输出端连接发射线圈,所述发射端DC/DC辅助电源为发射端监测电路、发射端控制单元和发射端通信单元供电,所述发射端控制单元分别与发射端监测电路、发射端通信单元通讯连接,所述发射端监测电路用于检测发射线圈的输出电压和电流,所述发射端通信单元用于与互联网智能终端平台通信;
所述接收端装置包括接收线圈、高频整流模块、DC/DC调压模块、接收端DC/DC辅助电源、待充电池、接收端监测电路、接收端控制单元和接收端通信单元,所述接收线圈的输出端经高频整流模块连接DC/DC调压模块,所述DC/DC调压模块的输出端分两路,一路连接待充电池,另一路连接接收端DC/DC辅助电源,所述接收端DC/DC辅助电源为接收端监测电路、接收端控制单元和接收端通信单元供电,所述接收端控制单元分别与接收端监测电路、接收端通信单元通讯连接,所述接收端监测电路用于检测接收线圈的输入电压和电流,所述接收端通信单元用于与互联网智能终端平台通信。
2.根据权利要求1所述的基于磁耦合谐振式的电动自行车无线充电桩***,其特征在于,还包括互联网智能终端平台,所述互联网智能终端平台分别与发射端装置、接收端装置通信连接,以分别向发射端装置、接收端装置发送控制命令,以及接收发射端装置、接收端装置的工作状态信息,所述互联网智能终端平台与用户的移动终端通信连接,以根据用户的选择打开指定的无线充电桩,设置充电具体参数。
3.根据权利要求1所述的基于磁耦合谐振式的电动自行车无线充电桩***,其特征在于,所述无线充电桩包括升降机构,所述发射端装置设于升降机构上以在其驱动下上下运动,所述无线充电桩上部设有充电安装座,所述充电安装座设置于正对发射端装置的发射线圈的正上方;所述接收端装置的接收线圈和高频整流模块设置在可拆卸充电模块上,并通过连接线缆与接收端装置的其他模块连接,所述可拆卸充电模块与充电安装座相适应,以在充电时将可拆卸充电模块从接收端装置上拆卸下来,安装在充电安装座上进行充电。
4.根据权利要求3所述的基于磁耦合谐振式的电动自行车无线充电桩***,其特征在于,所述升降机构主要由设置于无线充电桩内的若干电缸机构构成,所述发射端装置设置于电缸机构的丝杆上,以在电缸机构的驱动下上下运动。
5.根据权利要求3所述的基于磁耦合谐振式的电动自行车无线充电桩***,其特征在于,所述无线充电桩底部设有散热装置。
6.根据权利要求3所述的基于磁耦合谐振式的电动自行车无线充电桩***,其特征在于,所述发射端控制单元与升降机构的控制端连接,以在充电时根据通信单元接收到的充电具体参数,控制升降机构调整发射端装置与充电安装座的距离,从而调整输出电压和电流。
7.根据权利要求1所述的基于磁耦合谐振式的电动自行车无线充电桩***,其特征在于,双路E类高频逆变模块包括由AC/DC整流模块提供的直流电压源,MOSFET开关S1、S2,以及并联电容C f1、C f2,直流电压源输出分两路,一路串联开关S1、并联电容C f1,另一路串联开关Ss、并联电容C f2,两路输出与发射端并联,发射端包括补偿线圈L 1eq 、发射线圈L 2eq 、等效电容Cm12、环路等效电阻R 1、R 2以及补偿电容C1、C2,其中发射线圈L 2eq 与电容C2、电阻R 2串联后与等效电容Cm12并联,补偿线圈L 1eq 与电阻R 1串联于等效电容Cm12与发射线圈L 2eq 、电容C2、电阻R 2构成的并联结构上,通过发射线圈L 2eq 与接收线圈L 3eq 进行耦合来传输能量。
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