CN109216799A - 电池*** - Google Patents
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- CN109216799A CN109216799A CN201711269832.3A CN201711269832A CN109216799A CN 109216799 A CN109216799 A CN 109216799A CN 201711269832 A CN201711269832 A CN 201711269832A CN 109216799 A CN109216799 A CN 109216799A
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Abstract
本申请公开一种电池***,其包括:电池模块;冷却通道,其邻近电池模块设置;接地布线,其配置为将冷却通道和车体电连接;以及泄漏电流阻断装置,其配置为当电池模块中发生泄漏电流时中断冷却通道与车体的电连接。
Description
技术领域
本公开涉及一种电池***,并且更具体地涉及一种电池***,当泄漏电流在具有绝缘脆弱性的水冷式电池***的结构中流动时,该电池***能够在模块外部诱发火花发生,并且当泄漏电流持续发生时,该电池***能够断开冷却通道与车体之间的接地布线,使得电池***具有改善的绝缘安全性。
背景技术
配置为通过冷却通道冷却电池的水冷式电池***可经受由于电动机三相绝缘击穿时的AC电压而导致的电池内部绝缘性的破坏,并且AC绝缘击穿的可能性高于DC绝缘击穿的可能性。在开发的过程中,水冷式电池***虽然具有足够的DC电压绝缘性,但可能具有脆弱的AC电压绝缘性。
常规的水冷式电池***具有接地的冷却通道(冷却板)。因此,相比空冷式电池***的绝缘性能,确保水冷式电池***的绝缘性能是更加困难的。而且,在水冷式电池***中,为了提高其冷却性能,冷却通道和电池单元之间的距离短。因此,水冷式电池***在电池放空时比空冷式电池***更容易***。此外,当水冷式电池***的高压电池的继电器处于熔断状态时,难以确保水冷式电池***的绝缘性。
为了确保AC绝缘性,要求水冷式电池***具有彼此充分间隔开的底盘和电池。然而,当底盘和电池彼此充分间隔开时,水冷式电池***的效率不可避免地降低。此外,水冷式电池***具有气密结构,因此具有可由电池密封释放期间的绝缘击穿引起的安全相关问题,比如***。
因此,需要一种用于解决以上水冷式电池***的结构所导致的绝缘脆弱性的解决方案。
在本背景技术部分中公开的以上信息仅用于增强对本公开的背景的理解,而不应视为承认该信息形成本领域技术人员已知的现有技术。
发明内容
本公开是为了解决上述课题而提出的,并且本公开一方面提供一种电池***,当泄漏电流在具有绝缘脆弱性的水冷式电池***的结构中流动时,该电池***能够在模块外部诱发火花发生,并且当泄漏电流持续发生时,能够断开冷却通道与车体之间的接地布线,使得电池***具有改善的绝缘安全性。
根据本公开的示例性实施方式的电池***可包括:电池模块;冷却通道,其邻近电池模块设置;接地布线,其将冷却通道和车体电连接;以及泄漏电流阻断装置,其配置为当电池模块中发生泄漏电流时中断冷却通道与车体的电连接。
泄漏电流阻断装置可通过在电池模块中发生的泄漏电流而导致发生电火花,并且可基于电火花的发生次数来中断接地布线形成的电连接。
泄漏电流阻断装置可包括:火花诱发室,其具有发生电火花的内部空间,并且具有通过内部空间中气体的膨胀而移动的活塞;开关,其配置为由活塞操控;以及继电器,其配置为根据开关的操控来决定接地布线的电连接状态。
火花诱发室可在其内部空间中包括第一针状结构,其电连接到电池模块内部的一个点;以及第二针状结构,其连接到电池模块内部的另一个点。
第一针状结构可连接到电池模块内部的电池单元,并且第二针状结构可连接到电池模块的壳体的内表面。
第一针状结构可连接到电池模块内部的电池单元,并且第二针状结构可连接到设置在电池模块内部的电池单元之间的冷却翅片。
根据本公开的另一个示例性实施方式的电池***可包括:电池模块;冷却通道,其邻近电池模块设置;接地布线,其将冷却通道和车体电连接;以及泄漏电流阻断装置,其设置在电池模块的外部,并具有分别电连接到电池模块内部的两个点的第一针状结构和第二针状结构,其中电池模块内部的两个点之间的泄漏电流配置为在第一针状结构和第二针状结构之间导致发生电火花。
第一针状结构可连接到电池模块内部的电池单元,并且第二针状结构可连接到电池模块的壳体的内表面。
第一针状结构可连接到电池模块内部的电池单元,并且第二针状结构可连接到设置在电池模块内部的电池单元之间的冷却翅片。
泄漏电流阻断装置可还包括:火花诱发室,其具有内部空间且具有活塞,在内部空间中布置第一针状结构和第二针状结构,活塞随着内部空间中的气体由于第一针状结构和第二针状结构之间发生电火花膨胀而移动;开关,其配置为由活塞操控;以及继电器,其配置为根据开关的操控来决定接地布线的电连接状态。
根据本公开的电池***,当泄漏电流在具有绝缘脆弱性的水冷式电池***的结构中流动时,能够在模块外部诱发火花发生,并且当泄漏电流持续发生时,能够断开冷却通道与车体之间的接地布线,使得电池***具有改善的绝缘安全性。
此外,电池***能够防止在模块内部发生火花,从而防止电池密封释放、***和火灾。
此外,当泄漏电流持续发生时,电池***能够防止冷却通道和车体接地,从而改善绝缘性能。
此外,电池***能够确保绝缘安全性,从而提高车辆的适销性。
附图说明
从下面结合附图的详细描述中,本公开的以上和其它方面、特征和优点将更清楚,在附图中:
图1示出根据本公开的实施方式的电池***的构造;
图2示出根据本公开的实施方式的电池***的电池模块;
图3示出根据本公开的实施方式的电池***的泄漏电流阻断装置的构造;
图4A和图4B示出根据本公开的实施方式的电池***的火花诱发室;以及
图5示出根据本公开的实施方式的电池***的绝缘方法。
具体实施方式
在下文中,将参照附图描述根据本公开的各种实施方式的电池***。
图1示出根据本公开的实施方式的电池***的构造。图2示出根据本公开的实施方式的电池***的电池模块。图3示出根据本公开的实施方式的电池***的泄漏电流阻断装置的构造。图4A和图4B示出根据本公开的实施方式的电池***的火花诱发室。图5示出根据本公开的实施方式的电池***的绝缘方法。
参照图1和图2,根据本公开的电池***可包括:电池模块100;冷却通道200,其邻近电池模块100设置;接地布线300,其配置为将冷却通道200和车体30电连接;以及泄漏电流阻断装置500,其配置为当电池模块100中发生泄漏电流时中断接地布线300形成的电连接。
电池模块100包括多个电池单元110以及设置在多个电池单元110之间以冷却电池单元110的冷却翅片150。冷却翅片150是金属导体并且与电池单元110接触。为了在电池模块100的电池单元110之间提供表面压力,模块内部的最外层电池单元110的侧面由金属导体压制。
冷却通道200是金属导体,并且可在冷却通道200与车体30接地的状态下防止静电。
电池模块100和冷却通道200之间的热界面材料(TIM)是导热材料,传导电池模块100和冷却通道200之间的热量,并且具有绝缘性能。为了提高水冷式电池***的效率并降低其成本,将TIM设计为尽可能地薄。
泄漏电流阻断装置500通过在电池模块100中发生的泄漏电流导致发生电火花,并基于电火花发生的次数中断由接地布线300形成的电连接。
这里,泄漏电流阻断装置500将在具有绝缘脆弱性的电池模块100内部的点处发生的泄漏电流吸引到电池模块100的外部,并导致发生电火花,由此使泄漏电流放电。此外,如下所述的泄漏电流阻断装置500的火花诱发室520内充填有气体。当由于连续发生泄漏电流而导致电火花的发生次数增加时,火花诱发室520中的气体体积膨胀。因此,火花诱发室520通过使用气体的体积的膨胀力来操控开关540,如下所述,从而阻断接地布线300。
与泄漏电流阻断装置500的构造相关,泄漏电流阻断装置500可包括:火花诱发室520,其具有发生电火花的内部空间,并且具有通过内部空间中气体的膨胀而移动的活塞524;开关540,其配置为由活塞524操控;以及继电器560,其配置为根据开关540的操控来决定接地布线300的电连接状态。
这里,火花诱发室520具有内部空间和活塞524,在内部空间中电池模块100中发生的泄漏电流能够以火花的形式放电,活塞524通过填充在内部空间中气体的膨胀而移动。在本公开的实施方式中,内部空间示出为具有四边形框架形状,但是内部空间可具有各种形状。此外,火花诱发室520内可充填有气体,其体积由于放电能量而增加。
参照图3,作为本公开的实施方式,在活塞524的一部分***火花诱发室520中的状态下,当气体的体积膨胀时,活塞524可通过气体体积的膨胀力从火花诱发室520突出。
火花诱发室520可在其内部空间中包括电连接到电池模块100内部的一个点的第一针状结构以及连接到电池模块100内部的另一个点的第二针状结构。
这里,火花诱发室520是将电池模块100中发生的泄漏电流诱发到电池模块100的外部并导致发生火花的装置。火花诱发室520可连接到电池模块100内部的多个点,但是可连接在电池单元110与模块壳体的内表面130之间或者电池单元110和冷却翅片150之间,所述多个点是在水冷式电池***中具有绝缘脆弱性的点。
具体地,作为实施方式,参照图4A,第一针状结构可连接到电池模块100内部的电池单元110,并且第二针状结构可连接到电池模块100的壳体的内表面130。作为另一个实施方式,参照图4B,第一针状结构可连接到电池模块100内部的电池单元110,并且第二针状结构可连接到设置在电池模块100内部的电池单元110之间的冷却翅片150。
参照图1和图3,当开关540由火花诱发室520的活塞524压制时,开关540操控与之电连接的继电器560。
继电器560可以是B触点(通常为开)继电器,并且设置在接地布线300上用于将冷却通道200和车体30电连接,并且在操控开关540时接通以阻断接地布线300。因此,即使在电池模块100中连续发生泄漏电流时,也能够确保绝缘性能(相反,当泄漏电流不连续发生时,存在有利效果,比如通过冷却通道200到车体30的接地来防止静电)。
将参照图5描述本公开的操作流程。首先,当在电池模块100中暂时发生泄漏电流时,在连接到电池模块100的泄漏电流阻断装置500的火花诱发室520中发生电火花,因此导致泄漏电流通过其放电。当连续发生泄漏电流时,火花诱发室520内部电火花的发生次数增加,因此内部气体的体积膨胀,从而操控开关540以便阻断冷却通道200和车体30之间的接地布线300。总之,暂时泄漏电流在火花诱发室520内部以火花的形式放电,并且关于连续的泄漏电流,火花诱发室520内部的火花放电并且通过放电能量而导致的气体体积膨胀可用于阻断冷却通道200与车体30之间的接地布线300,使得能够确保附加的绝缘安全性。
根据本公开的实施方式的电池***可包括:电池模块100;冷却通道200,其邻近电池模块100设置;接地布线300,其配置成将冷却通道200和车体30电连接;以及泄漏电流阻断装置500,其设置在电池模块100的外部,并且具有分别电连接到电池模块100内部的两个点的第一针状结构和第二针状结构,其中电流模块100内部的两个点之间的泄漏电流配置为在第一针状结构和第二针状结构之间导致发生电火花。泄漏电流阻断装置500可还包括:火花诱发室520,其具有内部空间且具有活塞524,在内部空间中布置第一针状结构和第二针状结构522,活塞524随着内部空间中的气体由于第一针状结构和第二针状结构522之间发生电火花膨胀而移动;开关540,其配置为由活塞524操控;以及继电器560,其配置为根据开关540的操控来决定接地布线300的电连接状态。
这里,如上所述(参见图4A和图4B),关于与泄漏电流阻断装置500连接的电池模块100内部的两个点,第一针状结构可连接到在电池模块100内部的电池单元110,并且第二针状结构可连接到电池模块100的壳体的内表面130。或者,第一针状结构可连接到电池模块100内部的电池单元110,并且第二针状结构可连接到设置在电池模块100内部的电池单元110之间的冷却翅片150。
如上所述,当泄漏电流在具有绝缘脆弱性的水冷式电池***的结构中流动时,根据本公开的各种实施方式的电池***能够在模块外部诱发火花发生,并且当泄漏电流持续发生时,能够断开冷却通道与车体之间的接地布线,使得电池***具有改善的绝缘安全性。
此外,电池***能够防止在模块内部发生火花,从而防止电池密封释放、***和火灾。
此外,当泄漏电流持续发生时,电池***能够防止冷却通道和车体接地,从而提高绝缘性能。
此外,电池***能够确保绝缘安全性,从而提高车辆的适销性。
仅参照本公开的特定实施方式已经示出并说明了本公开。然而,对于本领域技术人员而言显而易见的是,在由权利要求提供的本公开的技术思想的范围内,各种修改和改变是可能的。
Claims (10)
1.一种电池***,所述电池***包括:
电池模块;
冷却通道,其邻近所述电池模块设置;
接地布线,其将所述冷却通道和车体电连接;以及
泄漏电流阻断装置,其配置为当所述电池模块中发生泄漏电流时中断所述冷却通道与所述车体的电连接。
2.根据权利要求1所述的电池***,其中所述泄漏电流阻断装置通过在所述电池模块中发生的所述泄漏电流而导致发生电火花,并且基于所述电火花的发生次数来中断所述电连接。
3.根据权利要求2所述的电池***,其中所述泄漏电流阻断装置包括:
火花诱发室,其具有发生所述电火花的内部空间,并且具有通过所述火花诱发室的所述内部空间中气体的膨胀而移动的活塞;
开关,其配置为由所述活塞操控;以及
继电器,其配置为根据所述开关的操控来决定所述接地布线的电连接状态。
4.根据权利要求3所述的电池***,其中所述火花诱发室在其所述内部空间中包括:
第一针状结构,其电连接到所述电池模块内部的一个点;以及
第二针状结构,其连接到所述电池模块内部的另一个点。
5.根据权利要求4所述的电池***,其中所述第一针状结构连接到所述电池模块内部的电池单元,并且
其中所述第二针状结构连接到所述电池模块的壳体的内表面。
6.根据权利要求4所述的电池***,其中所述第一针状结构连接到所述电池模块内部的电池单元,并且
其中所述第二针状结构连接到设置在所述电池模块内部的电池单元之间的冷却翅片。
7.一种电池***,所述电池***包括:
电池模块;
冷却通道,其邻近所述电池模块设置;
接地布线,其将所述冷却通道和车体电连接;以及
泄漏电流阻断装置,其设置在所述电池模块的外部,并具有分别电连接到所述电池模块内部的两个点的第一针状结构和第二针状结构,
其中所述电池模块内部的所述两个点之间的泄漏电流配置为在所述第一针状结构和所述第二针状结构之间导致发生电火花。
8.根据权利要求7所述的电池***,其中所述第一针状结构连接到所述电池模块内部的电池单元,并且
其中所述第二针状结构连接到所述电池模块的壳体的内表面。
9.根据权利要求7所述的电池***,其中所述第一针状结构连接到所述电池模块内部的电池单元,并且
其中所述第二针状结构连接到设置在所述电池模块内部的电池单元之间的冷却翅片。
10.根据权利要求7所述的电池***,其中所述泄漏电流阻断装置还包括:
火花诱发室,其具有内部空间且具有活塞,在所述内部空间中布置所述第一针状结构和第二针状结构,所述活塞随着所述内部空间中的气体由于所述第一针状结构和第二针状结构之间发生电火花膨胀而移动;
开关,其配置为由所述活塞操控;以及
继电器,其配置为根据所述开关的操控来决定所述接地布线的电连接状态。
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