CN106953129B - 用于提高在使用电池组系统时的安全性的设备 - Google Patents
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Abstract
本发明涉及用于提高在使用电池组系统时的安全性的设备。本发明从一种电池组电池(BZ)、尤其是从一种锂离子电池组电池出发,其中所述电池组电池(BZ)具有多个触摸传感器元件(S),用于探测附在所述触摸传感器元件(S)上的或者对所述触摸传感器元件(S)施加压力的元件(N),其中所述触摸传感器元件(S)彼此电绝缘。
Description
技术领域
本发明涉及一种设备并且涉及一种电池组电池、尤其是锂离子电池组电池,而且涉及所述的电池组电池的应用。
背景技术
在电池组电池损坏或者在不正确地使用电池组电池时,在该电池组电池的情况下可能发生在该电池组电池的内部的气体形成(Gasbildung)。通过所述气体形成而形成过压。公知的是:在该电池组电池的外壳中设置过压阀门或者爆破隔膜,以便排出所形成的气体并且避免该电池组电池的热失控。
例如在DE 10 2008 053 011 A1中公开了一种用于蓄电池的电流的(galvanisch)电池组电池,在所述电流的电池组电池中设置有可用来探测所述电流的电池组电池的不符合期望的状态的传感器装置。例如温度测量装置、压电元件、电阻应变片或者其它的测量装置被称作适当的传感器装置。所述其它的测量装置尤其是用于:例如当在电池组电池之内出现气体形成和与之相关的压力升高时探测外壳的形变。
此外,在DE 10 2011 112 641 A1中公开了一种用于在锂离子电池组电池的功能能力方面检查该锂离子电池组电池的方法,其中通过击打该电池组电池的外壳的确定的部位来形成声音。该声音利用被布置在该电池组电池之外的麦克风来接收。从麦克风的所接收到的信号来推断出该电池组电池的状态。
此外,在US 2017/122691 A1中公开了一种电池组电池,所述电池组电池与压电元件一起被布置在共同的框架内。该压电元件适合于基于电池组电池的异常作业(Operation)来探测该电池组电池的鼓起(Anschwellung)。
发明内容
本发明从电池组电池、尤其是锂离子电池组电池出发,其中所述电池组电池具有多个触摸传感器元件,用于探测附在所述触摸传感器元件上的或者对所述触摸传感器元件施加压力的元件。
本发明的实质在于:所述触摸传感器元件彼此电绝缘。
通过按照本发明的情形:所述触摸传感器元件彼此电绝缘,可以确定一元件附在触摸传感器元件上的或者对触摸传感器元件施加压力的精确的位置。所述附在触摸传感器元件上的或者对所述触摸传感器元件施加压力的元件例如可能是金属物体、尤其可能是钉子。在此,该金属物体有能力穿透电池组电池的外壳侵入到该电池组电池的内部。在此,该导电的物体可通过其侵入到电池组电池中而造成该电池组电池的危及安全的状态。这种危及安全的状态例如可在于:在电池组电池之内发生电短路或者物质(Substanz)可以从电池组电池中不受控制地到达该电池组电池的周围或者物质可以进入到该电池组电池的内部。
通过如下情形:已知了施加压力的元件造成电池组电池的机械形变并且尤其是造成该电池组电池的外壳的机械形变的位置,可以有针对性地引入措施。
所述有针对性地引入的措施应该将电池组电池转变到安全的状态下。如果减小了对处于电池组电池的周围的人员或者物体的危险,那么该电池组电池的安全的状态存在。为了将电池组电池转变到安全的状态下,例如可以进行该电池组电池的放电或者该电池组电池的电跨接。此外,还可以进行该电池组电池的各个部件的电跨接。电池组电池的各个部件例如是所述电池组电池的各个电极线圈。
此外,例如还可以在电池组电池的外壳和必要时该电池组电池的内部由于施加压力的元件已机械地形变和损坏的位置上执行修复措施。
因此,通过已知了电池组电池的机械形变的位置,可以有效地引入和实行安全相关的措施。
本发明的背景是提高关于电池组电池的安全性并且避免该电池组电池进入危及安全的状态,以及降低危及安全的状态的影响。
例如,如果电池组电池已损坏,那么该电池组电池的危及安全的状态存在。例如,由于导电的物体侵入到该电池组电池中,可能引起在该电池组电池之内的电短路。此外,还可能发生:物质从该电池组电池不符合期望地溢出。所述危及安全的状态伴随有对处于该电池组电池周围的人员或者物体损害的概率的提高。
此外,本发明还涉及电池组电池在电池组系统中或者在车辆中、尤其是在机动车中的应用。
此外,本发明的有利的实施方式也由本发明公开。
按照本发明的一优选的构建方式,在电池组电池的外壳与接触传感器元件之间布置有绝缘层。
通过按照本发明的情形:在电池组电池的外壳与接触传感器元件之间布置有绝缘层,可以使用这种可与外壳导电地连接的接触传感器元件。在此,对于施加压力的元件是导电的物体的情况,如果所述施加压力的元件穿透绝缘层并且将触摸传感器元件与外壳物理地连接,那么在所述触摸传感器元件与所述外壳之间会建立导电的连接。
按照本发明的另一优选的构建方式,所述绝缘层由聚酰亚胺和/或聚对苯二甲酸乙二酯来构造。通过按照本发明的情形:所述绝缘层由聚酰亚胺和/或聚对苯二甲酸乙二酯来构造,绝缘层已经被安放,所述绝缘层相对于机械负载是特别稳健的、相对于电解质是稳定的并且不具有溶剂排放(Loesungsmittelemission)。
按照本发明的另一优选的构建方式,所述绝缘层具有为30μm到120μm、尤其是20μm到120μm、优选地10μm到120μm的厚度。
按照本发明的另一优选的构建方式,所述触摸传感器元件彼此以2mm到3mm的间距来布置。
通过按照本发明的情形:所述触摸传感器元件彼此以2mm到3mm的间距来布置,可以准确地确定元件对电池组电池施加压力的位置。
按照本发明的另一优选的构建方式,所述触摸传感器元件由镍或者铜或者铝来构造。
通过按照本发明的情形:所述触摸传感器元件由镍或者铜或者铝来构造,具有高的导电性的特别灵敏的材料被提供。由于所述材料具有高的导电性,已经可以探测到流经在触摸传感器元件与外壳之间的导电连接的小的电流。示例性的可被探测到的小的电流为1mA到10mA。
按照本发明的另一优选的构建方式,所述触摸传感器元件作为薄膜被布置在绝缘层上。
通过按照本发明的情形:所述触摸传感器元件作为薄膜被布置在绝缘层上,所述触摸传感器元件可以节约空间地被用于电池组电池的不同的部位上。此外,以薄膜为形式来布置触摸传感器元件由于薄膜相对于机械作用的机械灵活性而是稳健的。所述机械作用例如可以是撞击。此外,薄膜还可以耗费小地被布置在绝缘层上,而且可以在需要时轻易地被更换。
按照本发明的另一优选的构建方式,所述触摸传感器元件被布置在所述外壳之内或者被布置在所述外壳之外。
通过按照本发明的情形:所述触摸传感器元件被布置在所述外壳之外,已经可以在如下这种时间点进行对施加压力的元件的探测,在所述时间点,所述施加压力的元件虽然已经通过侵入绝缘层而将触摸传感器元件与外壳导电地连接,但是还不曾穿透外壳本身。由此,已经可以在已发生外壳的机械形变和电池组电池的与之相关的损坏之前的时间点引入措施,以便将该电池组电池转变到安全的状态下。所述安全相关的措施例如可以是电池组电池的完全放电或者可以是电流旁路的铺设。
通过按照本发明的情形:所述触摸传感器元件被布置在所述外壳之内,所述触摸传感器元件和所述绝缘层通过外壳本身被保护以免机械作用和弄脏(Verschmutzung)。由此,所述触摸传感器元件和所述绝缘层的工作能力(Einsatzfaehigkeit)进一步被提高。
按照本发明的另一优选的构建方式,所述触摸传感器元件与分析电子装置和/或与用于引入安全相关的行动(Aktion)的安全单元连接。借助于所述分析电子装置可以分析和进一步处理由触摸传感器元件产生的信号。通过所述分析电子装置尤其是可以操控所述安全单元。可替换地,所述安全单元可以直接分析和进一步处理所述由触摸传感器元件产生的信号。所述安全单元例如可以引起电流旁路的铺设或者电池组电池的完全放电。
附图说明
随后,本发明依据可以从中得到其它的发明特征的实施例来解释,但是本发明在其范围内并不限于此。所述实施例在附图中被示出。
图1示出了按照本发明的按照第一实施方式的电池组电池的示意图;
图2示出了按照本发明的按照第二实施方式的电池组电池的示意图。
具体实施方式
在图1中示意性地示出了按照本发明的按照第一实施方式的电池组电池。该电池组电池用BZ来标明。该电池组电池BZ尤其可以是锂离子电池组电池。触摸传感器元件用S来标明,其中所述触摸传感器元件S适合于探测附在所述触摸传感器元件S上的或者对所述摸传感器元件S施加压力的元件。
在触摸传感器元件S与外壳G之间布置有电绝缘的绝缘层。所述电绝缘的绝缘层用I来标明。
所述触摸传感器元件S尤其可能是导电的物体,所述导电的物体可以通过导电的侵入的物体与用G来标明的导电的外壳电连接。所述导电的侵入的物体用N来标明。所述导电的并且穿透外壳G的物体N尤其可能是钉子或者可能是另一金属物体,所述金属物体有能力穿透外壳G和绝缘层I并且侵入到电池组电池BZ中。
各个电极线圈都被布置在电池组电池BZ的内部。所述各个电极线圈用EW来标明。
因为所述各个触摸传感器元件S彼此不是电连接,而是拥有到电子分析单元上的单独的链接,所以在导电的物体N侵入到电池组电池BZ中时可以电地识别确定的触摸传感器元件S。
背景是:精确地在导电的物体N穿透外壳G的位置上建立在外壳G与确定的触摸传感器元件S之间的电连接。因此,依据所述确定的触摸传感器元件S可以确定所述导电的物体N在哪里穿透外壳G和绝缘层I直到触摸传感器元件S。借助于分析电子装置和/或利用用于引入安全相关的行动的安全单元,可以有针对性地在外壳G的如下位置上引入安全相关的措施:在所述位置上,外壳G已损坏。因此,在该位置上,例如可以在所述外壳G损坏之后很快引入修复措施。此外,还可以直接确定哪个电极线圈EW由于所述导电的物体N而可能已经损坏。
在图2中示意性地示出了按照本发明的按照第二实施方式的电池组电池BZ。该电池组电池BZ的外壳用G来标明。该电池组电池BZ的电绝缘的绝缘层用I来标明。用S来标明触摸传感器元件,其中所述触摸传感器元件S适合于探测附在所述触摸传感器元件S上的或者对所述触摸传感器元件S施加压力的元件。尤其是,所述触摸传感器元件S适合于通过导电的物体来建立与外壳G的导电的连接。其它的导电的物体例如可能是钉子或者可能是另一金属物体。
此外,在图2中示出了用于确定如下位置的可能的电路:在所述位置上,导电的物体已导致在触摸传感器元件S与外壳G之间的导电的连接。
用R来标明欧姆电阻。按照该实施方式,外壳G与电极线圈EW的正极相连。
高欧姆地设计在触摸传感器元件S与外壳G之间的电连接,使得电池组电池BZ的常规的电压附在电压抽头U1、U2和U3上。对于导电的物体将触摸传感器元件S与外壳G导电地连接的情况,在所述触摸传感器元件S与所述外壳G之间建立有低欧姆的接触。由此,明显比在其它两个电压抽头上更小的电压附在相对应的电压抽头U1、U2或者U3上。由于更小的电压附在该电压抽头上,可以借助于电子电路来确定在外壳G的哪个部位上已经有穿透并且确定哪个电极线圈EW可能已被该穿透涉及到并且损坏。
Claims (14)
1.电池组电池(BZ),其中所述电池组电池(BZ)具有多个单独的电极线圈(EW)和多个触摸传感器元件(S),用于探测附在所述触摸传感器元件(S)上的或者对所述触摸传感器元件(S)施加压力的元件(N),其特征在于,
所述触摸传感器元件(S)彼此电绝缘,
各个触摸传感器元件(S)拥有到电子分析单元上的单独的连接,以及
各个触摸传感器元件(S)中的每一个分别与所述多个单独的电极线圈(EW)中的一个相对应。
2.根据权利要求1所述的电池组电池(BZ),其特征在于,所述电池组电池(BZ)是锂离子电池组电池。
3.根据权利要求1所述的电池组电池(BZ),其特征在于,在所述电池组电池(BZ)的外壳(G)与所述触摸传感器元件(S)之间布置有绝缘层(I)。
4.根据权利要求3所述的电池组电池(BZ),其特征在于,所述绝缘层(I)由聚酰亚胺和/或聚对苯二甲酸乙二酯来构造。
5.根据权利要求3所述的电池组电池(BZ),其特征在于,所述绝缘层(I)具有为30μm到120μm的厚度。
6.根据权利要求3所述的电池组电池(BZ),其特征在于,所述绝缘层(I)具有为20μm到120μm的厚度。
7.根据权利要求3所述的电池组电池(BZ),其特征在于,所述绝缘层(I)具有为10μm到120μm的厚度。
8.根据权利要求1-7之一所述的电池组电池(BZ),其特征在于,所述触摸传感器元件(S)彼此以2mm到3mm的间距来布置。
9.根据权利要求1-7之一所述的电池组电池(BZ),其特征在于,所述触摸传感器元件(S)由镍或者铜或者铝来构造。
10.根据权利要求3至7之一所述的电池组电池(BZ),其特征在于,所述触摸传感器元件(S)作为薄膜被布置在绝缘层(I)上。
11.根据权利要求3至7之一所述的电池组电池(BZ),其特征在于,所述触摸传感器元件(S)被布置在所述外壳(G)之内或者被布置在所述外壳(G)之外。
12.根据权利要求1至7之一所述的电池组电池(BZ),其特征在于,所述触摸传感器元件(S)与分析电子装置和/或与用于引入安全相关的行动的安全单元连接。
13.根据上述权利要求之一所述的电池组电池(BZ)在电池组系统中或者在车辆中的应用。
14.根据权利要求13所述的应用,其特征在于,所述车辆是机动车。
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