CN113665383A - 模块化的外部ac充电装置 - Google Patents
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Abstract
用于电动车辆或混合动力车辆的高压电池的能移动的模块化的外部AC充电装置和AC充电系统技术领域本发明涉及一种用于电动车辆或混合动力车辆的高压电池的能移动的模块化的外部AC充电装置和AC充电系统,其中充电功率和功能范围可根据期望来适配。
Description
技术领域
本发明涉及一种能移动的模块化的外部AC充电装置和AC充电系统,其用于电动车辆或混合动力车辆的高压电池,其中充电功率和功能范围可根据期望来适配。
背景技术
目前的电动车辆和混合动力车辆为了以交流电给其高压电池充电而具有固定地安装在车辆中的充电装置,即所谓的车载充电装置(OBC)。连接线缆用于将装入的充电装置与交流电源连接和通信,所述交流电源例如是插座或交流充电桩(AC充电桩)。安装的充电装置需要结构空间并且增加了车辆的总重量和其制造成本。此外,所安装的充电装置具有固定的最大充电功率和取决于所使用的硬件的功能范围。因此,已经提出,用外部充电装置来代替装入的充电装置,所述外部充电装置的充电功率可以变化。
从EP 2 492 133 A2中已知一种通用的固定充电装置,所述充电装置包括至少一个充电包,该充电包具有用于输送交流功率的交流端子、用于将所述交流功率整流成直流功率的AC/DC转换器、用于输出具有第一功率值的直流功率的直流端子和用于接通和断开所述直流电流供给的输出的充电包开关。根据充电数据包的安装数量和每个充电数据包开关是接通还是断开,可以输出不同功率值的直流功率,并且可以根据直流电流供给的功率值的变化来调节电动车辆的充电速度。
US 2004 0 189 251 A1公开了一种模块化构造和可重构的固定充电系统,包括被配置为提供用于给电池充电的交流(AC)输入和直流(DC)输出的模块化功率级。这些模块化功率级包括耦合到输出电池充电电流的整流器电路的逆变器。
US 2012 0 299 531 A1涉及一种救援车辆,所述救援车辆配备有模块化的电池组和用于趴窝车辆的高压电池的充电系统。
DE 10 2015 200 960 B4提出一种外部充电装置,所述外部充电装置具有多个用于将交流电流(AC)转换成直流电流(DC)的功率模块。至少一个功率模块可以与充电装置电气地和机械地断开,并用作单独的充电装置。
发明内容
在该背景下,本发明的任务在于,提供一种用于电动车辆或混合动力车辆的高压电池的AC充电装置和AC充电系统,其节省了车辆中的结构空间和重量并且其中充电功率和功能范围可根据期望来适配。
根据本发明,该目的通过具有权利要求1的特征的装置以及具有权利要求9的特征的装置来实现。本发明的扩展方案和改进方案由从属权利要求和说明书中得出。
本发明的主题是一种用于电动车辆或混合动力车辆的高压电池的能移动的外部交流充电装置,其模块化地构造。根据本发明的充电装置包括基本模块以及必要时还包括一个或多个附加模块,它们通过可拆卸的插接连接彼此机械和电连接。该基本模块具有交流电流输入端,直流电流输出端,数据接口,交流电流输出端和直流电流输入端。
在本申请的范围内,能移动的充电装置理解为这样一种充电装置,该充电装置不是如充电桩或壁挂式充电箱那样位置固定地锚固,并且该充电装置的尺寸和重量允许例如被携带在车辆的行李舱中。外部充电装置理解为一种充电装置,其不是固定地安装在车辆中,而是在充电过程中从外部连接到车辆的充电插座上。交流充电装置理解为一种充电装置,其使用交流电流源、例如电网作为能量源。
根据本发明的充电装置包括基本模块以及必要时还包括一个或多个附加模块。在一个实施方式中,充电装置仅包括基本模块。在另一实施方式中,充电装置包括基础模块和至少一个附加模块。在另一实施方式中,充电装置包括多于一个的附加模块,例如两个附加模块、三个附加模块或四个附加模块。附加模块可以与基本模块和/或其它附加模块电和机械地耦合。
根据本发明,该基本模块具有交流电流输入端、直流电流输出端、数据接口、交流电流输出端和直流电流输入端。在一个实施方式中,基本模块附加地具有另一数据接口、另一交流电流输入端和另一直流电流输出端。这种实施方式也可以作为OBC应用在车辆中。为此,通过附加的接头实现直接接触和集成到车辆的高压车载电网中。在需要时,AC充电装置可以在车辆中被携带并且连接到车辆车载电网上(例如通过插接连接),从而充电装置又是车辆车载电网的组成部分并且高压电池也可以在途中被以交流电充电。
在一个实施方式中,根据本发明的充电装置包括至少一个附加模块。至少一个附加模块具有交流电流输入、直流电流输出、第一数据接口、直流电流输入、交流电流输出和第二数据接口。
在根据本发明的充电装置的一个实施方式中,至少一个附加模块包括整流器。通过模块化的结构,根据本发明的充电装置可以根据所需的AC充电功率被扩展。如果基本模块例如具有直至11kW的充电功率,则可以根据需求、特定的充电特性和充电基础设施来适配一个或多个功率模块,以便提高或倍增充电功率。充电装置可以包括多个(例如两个或三个)功率模块。通过使用多个功率模块,充电功率可以被提高,直至达到最优的充电性能,该最优的充电性能可以利用最新可用的充电装置来实现。通过使用多个功率模块,同时也可以改善效率和功率密度。在此,可以实现超过97%的效率,从而可以在最短的时间内将高压电池充电到大于80%。此外,通过使用多个功率模块可以确保充电装置的灵活性,以便能够利用同一充电装置实现不同充电功率。
功率模块在此例如可以被构造为半导体模块,其可以具有高的时钟频率。由此可以有利地减少电网侧和电池侧的滤波开销,从而可以提高整个充电装置的功率密度。根据本发明的充电装置可以通过使用功率模块、尤其是半导体模块简单地并且尤其紧凑地构造。
在根据本发明的充电装置的一种实施方式中,至少一个附加模块包括高压电池(HV-电池)。高压电池用作"动力组",并且因此使得充电装置能够用作车辆的应急电源。
附加地可以接触到其他模块,这些模块扩大了充电单元的功能范围,例如可以通过功能模块的适配将具有硬件相关性的新的智能充电功能集成到现有的车辆中。在根据本发明的充电装置的一个实施方式中,至少一个附加模块包括用于智能充电功能的连接模块。
在一个实施方式中,充电装置是三相充电装置。三相充电装置可以获得比已知的单相充电装置更高的充电功率。根据本发明的充电装置的提高的充电功率能够实现高压电池的快速充电。在另一实施方式中,充电装置为单相充电装置。单相充电装置提供的优点是,其可以连接到每个家用插座上并且需要比三相充电装置更少的构件费用。
本发明的主题还在于一种用于电动车辆或混合动力车辆的高压电池的充电系统。充电系统包括根据本发明的充电装置、具有用于将充电装置连接到交流端子的线缆内控制盒(IC-CPD)的第一线缆、以及用于将充电装置连接到车辆的直流充电插座的第二线缆。
在一种实施方式中,充电系统的第二线缆具有电力线通信(PLC)并且建立与车辆的控制器(ECU)的连接,所述控制器被设立用于控制车辆的高压电池的充电过程。PLC可以用于语音或数据传输,以便能够与控制器通信。然后,控制装置可以识别充电装置能以何种充电功率运行,以便例如释放合适强度的电流。
根据本发明的充电装置和充电系统的优点在于,可以省去固定安装在车辆中的充电装置,这对车辆的制造成本产生积极影响,使重量和结构空间最小化并且实现提高的充电功率。可以精确地适配和维持与用户的个别需求相应的AC充电功率。不必置办不同的AC充电装置,而是(附加)功率模块的匹配是足够的,能够明显更成本有利地设计所述(附加)功率模块。此外,由此可以使充电装置总是保持在最新的状态并且必要时也可以使新的功能对于老旧车型可用。同样有利的是,即便是较老的车型中,也可以对充电装置进行改装。
此外,可移动的充电装置提供了更高的灵活性,因为其可以在不同的地点使用。如果用户希望在车辆中携带外部充电装置(例如在旅行时),则用户可以非常个性化地决定,他携带多少附加模块,以便例如能够通过在充电装置中连接更少的功率模块来减少车辆中的附加重量或者实现附加的储藏空间。
由于车辆不再需要交流充电以及具有AC/DC转换器的内置充电装置,因此车辆本身的结构也被简化。
本发明的其它优点和设计方案由说明书和附图得出。
应理解的是,在不脱离本发明的范围的情况下,上述的和下面还将阐述的特征不仅可以以分别说明的组合、而且也可以以其他组合或单独地使用。
附图说明
本发明借助附图中的实施方式示意性地示出并且参考附图进一步描述。图中示出:
图1示出了具有根据现有技术的充电装置的电动车辆或混合动力车辆;
图2示出了具有根据本发明的充电装置的实施方式的电动车辆或混合动力车辆;
图3示出根据本发明的充电装置的基本模块的实施方式的两个示意立体图;
图4示出根据本发明的充电装置的附加模块的一个实施方式的两个示意性立体图;
图5示出了由图3的基础模块和图4的附加模块组成的根据本发明的充电装置的实施方式的组装的图示。
具体实施方式
图1以示意图示出了带有根据现有技术的充电装置12的电动车辆或混合动力车辆。
充电装置12的交流电流输入端12.1通过带有与线缆内控制盒(In-Cable Controland Protechnological Device,IC-CPD)的交流线缆11连接到交流电源、例如电网上。充电装置包括整流器(AC/DC转换器)。充电装置12的直流电流输出端12.2经由直流线缆13连接到车辆的充电插座14(CCS)。直流电流经由电池管理装置的开关单元16("电池接线盒",BJB)传输给车辆的高压电池15。充电过程通过车辆的控制设备17(电子控制单元,ECU)来调节。充电装置12的进行电压转换(AC/DC)的功率部件因此位于车辆之外。
图2示出了具有根据本发明的充电装置20的实施方式的电动车辆或混合动力车辆,其具有模块化结构。根据本发明的可移动外部AC充电装置20至少包括基础模块21(主充电装置),该基础模块21包括具有整流器的功率级。基本模块21的交流电流输入端21.1经由具有IC-CPD的交流线缆11连接到交流电源上。基本模块21的直流电流输出端21.2通过直流线缆13连接到车辆的充电插座14(CCS)。直流电流通过BJB 16被提供给车辆的高压电池15。充电过程由车辆的控制单元17(ECU)来调节。基本模块21附加地具有交流电流输出端21.4(交流电流输出端)和直流电流输入端21.3(直流电流输入端),通过它们可以将基本模块21与一个或多个附加模块22(从模块)连接。在所示的实施方式中,充电装置20包括基本模块21和附加模块22。基本模块21的交流电流输出端21.4与附加模块22的交流电流输入端22.3连接,并且附加模块的直流电流输出端22.4与基本模块21的直流电流输入端21.3连接。
根据需要可以完全单独地并且根据当前的需要添加其它附加模块22、例如功率级。例如,在基本模块21的11kW的最大充电功率的情况下,可以通过用AC/DC变换器添加另一从功率级22来实现到22kW的扩展。如果现在由充电点给这样的主从复合结构21、22馈送交流充电电压,那么充电电流被分配到两个模块21、22上,所述模块分别将交流电流转换成直流电流。从模块22将所转换的电流转发回主模块21,该主模块于是形成总电流并且将该总电流转发给车辆的高压电池15.
图3示出根据本发明的充电装置20的基础模块21的实施方式的两个示意立体图、从斜前方看的视图和该基础模块21逆时针翻转90°的视图,即处于侧面上。
基本模块21(主模块)配备有交流电流输入端21.1和直流电流输出端21。为了接触连接附加模块22(从模块),它此外具有数据接口21.5、交流电流输出端21.4和直流电流输入端21。为了在车辆中运行(作为OBC),基础模块21在所示出的实施方式中还附加地设有另外的数据接口21.8、交流电流输入端21.7和直流电流输出端21.6,以便接触和集成直接到车辆的高压车载电网中。如果不打算将基础模块21用作OBC,则端子21.6、21.7和21.8是可选的并且可以省略。
图4示出根据本发明的充电装置20的附加模块22的实施方式的两个示意立体图,一个从斜前方看的视图和一个附加模块22逆时针翻转90°的视图,即处于侧面上。
附加模块22(从模块)在其底侧上具有与基本模块21(主模块)互补的插接连接器22.3,22.4,22.5作为与基本模块21(主模块)的配对件,利用插接连接器22.3,22.4,22.5可以机械和电地连接基本模块21和附加模块22。附加模块具有交流电流输入端22.3、直流电流输出端22.4和数据接口22.附加地,在附加模块22的上侧上的另外的接口22.6、22.7、22.8能够实现另外的附加模块22的连接。在此,附加模块22(从模块)可以不仅是电压转换器,而且也可以扩展其他的功能,例如用于智能充电功能的连接模块,或者是高压电池("Power bank"),充电装置20可以利用该高压电池作为用于车辆的紧急电源。
图5示出了由图3所示的基础模块21和图4所示的附加模块22组成的根据本发明的充电装置20的一个实施方式的组装图。主模块21和从模块22通过合适的插接和互锁技术彼此联合,使得由此形成正确确保电流和信号交换的单元,并且模块不能彼此脱离。
附图标记列表
11IC-CPD交流电线
12整流器(AC/DC转换器)
12.1交流输入(交流电流输入)
12.2直流输出(直流电流输出)
13直流充电线缆
14充电状态(CCS)
15高压电池
16个电池组连接盒(BJB)
20AC充电装置
21基本模块(主)
21.1交流输入(交流电流输入)
21.2直流输出(直流电流输出)
21.3直流输入(直流输入)
21.4交流输出(交流电流输出)
21.5数据接口
21.6直流输出(直流电流输出)
21.7交流输入(交流电流输入)
21.8数据接口
22附加模块(从)
22.3交流输入(交流电流输入)
22.4直流输出(直流电流输出)
22.5数据接口
22.6直流输入(直流电流输入)
22.7交流输出(交流电流输出)
22.8数据接口
Claims (10)
1.一种能移动的外部交流电充电装置(20),该交流电充电装置用于电动车辆或混合动力车辆的高压电池(15),所述交流电充电装置模块化地构建并且包括基本模块(21)以及必要时还包括一个或多个附加模块(22),基本模块和附加模块通过能拆卸的插接连接结构(21.3、21.4、21.5、22.3、22.4、22.5、22.6、22.7、22.8)机械地和电地彼此连接,其中,所述基本模块(21)具有交流电流输入端(21.1)、直流电流输出端(21.2)、数据接口(21.5)、交流电流输出端(21.4)和直流电流输入端(21.3)。
2.根据权利要求1所述的充电装置(20),其中,所述基本模块(21)附加地具有另外的数据接口(21.8)、另外的交流电流输入端(21.7)和另外的直流电流输出端(21.6)。
3.根据权利要求1或2所述的充电装置(20),所述充电装置(20)包括至少一个附加模块(22),该至少一个附加模块包括交流电流输入端(22.3)、直流电流输出端(22.4)、第一数据接口(22.5)、直流电流输入端(22.6)、交流电流输出端(22.7)和第二数据接口(22.8)。
4.根据权利要求3所述的充电装置(20),其包括多于一个的附加模块(22)。
5.根据权利要求3或4所述的充电装置(20),其中,至少一个附加模块(22)包括整流器。
6.根据权利要求3至5之一所述的充电装置(20),其中,至少一个附加模块(22)包括高压电池。
7.根据权利要求3至6中任一项所述的充电装置(20),其中,至少一个附加模块(22)包括用于智能充电功能的连接模块。
8.根据上述权利要求之一所述的充电装置(20),其中,该充电装置是三相充电装置。
9.一种用于电动车辆或混合动力车辆的高压电池(15)的充电系统,包括根据前述权利要求之一所述的充电装置(20),该充电系统具有用于将充电装置(20)连接到交流端子上的第一线缆(11)和用于将充电装置(20)连接到车辆的直流充电插座(14)上的第二线缆(13),该第一线缆带有线缆内控制盒(IC-CPD)。
10.根据权利要求9所述的充电系统,其特征在于,所述第二线缆(13)具有电力线通信(PLC)并且建立与所述车辆的控制器(17)的连接,所述控制器被设立用于控制所述车辆的高压电池(15)的充电过程。
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