CN112789761A - 用于制造高压储能器的方法和高压储能器 - Google Patents
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Abstract
本发明涉及一种用于制造高压储能器的方法,所述高压储能器尤其是用于车辆,所述方法具有如下步骤:制造壳体(1),所述壳体具有多个壳体壁(1a–1d),将电储能和冷却系统引入到壳体(1)中,并且闭锁壳体(1),其特征在于,尤其是在引入储能和冷却系统之前将壳体壁的内侧以耐热的金属箔加衬里。
Description
技术领域
本发明涉及一种按照权利要求1的前序部分所述的用于制造高压储能器的方法。
背景技术
电动车或混合动力车辆的高压储能器通常具有由轻金属或塑料制成的高压储能器壳体。例如,BMW I3的高压储能器壳体由铝制成。在构造高压储能器壳体时,重量、制造成本和可制造性以及尤其是在极端情况、例如严重车辆事故中的安全性是重要的参数。
发明内容
本发明的任务是,提出一种用于制造高压储能器的方法以及一种对应的高压储能器,所述高压储能器具有尽可能高的运行安全性,并且更确切地说是也在极端情况、例如严重车辆事故中具有尽可能高的运行安全性。
该任务通过权利要求1所述的特征来解决。本发明的有利设计方案和扩展方案可从从属权利要求中得出。
本发明的出发点是一种用于制造高压储能器的方法,所述高压储能器尤其是用于车辆,其中,首先制造壳体,所述壳体具有多个壳体壁。术语“壳体壁”应非常宽泛地理解。其指的是全部的限定高压储能器的壳体的壁(例如侧壁、底部、盖或类似物)。
在制造高压储能器壳体之后,将电储能和冷却系统引入到壳体中。这样的储能器系统的准确的构造在这里不需要更详细的阐述。所述储能器系统可以由多个或者说大量储能单体形成,所述储能单体可以组合成个别预制的并且彼此电路连接的储能模块。冷却系统是如下冷却系统,借助于所述冷却系统,有效热量可以从储能单体中导出,或利用所述冷却系统,在温度低时可以加热储能单体。
随后闭锁壳体。
本发明的核心在于,将高压储能器壳体的壳体壁的内侧以耐热的金属箔加衬里。优选地,以耐热的金属箔对壳体壁的内侧加衬里在引入电储能和冷却系统之前进行。如果例如由于极严重的事故而应在高压储能器中引起单体内部的短路,则可以从个别或多个储能单体中排出热的气体。通过以耐热的金属箔对高压储能器壳体的壳体壁加衬里,可以显著提高高压储能器壳体的耐热性。这样的金属箔几乎不要求结构空间。因此现有的并且经过验证的电池壳体可以在其耐热性方法通过以耐热的金属箔的加衬里以简单和非常低成本的方式还更耐热地构造,而无须显著改变壳体的基本设计或几何结构。因此可以保持现有的高压储能器壳体的轻型结构特性,因为附加地嵌入的金属箔相比于壳体壁厚非常薄。此外,这样的金属箔比其他过热保护材料、例如防火漆或类似物显著更有利。
优选地,金属箔与壳体导电连接。
此外,金属箔可以镀锌或涂漆。对此替代性地,也可以使用以绝缘层涂敷的或覆盖的金属箔。
按照本发明的一种扩展方案,将壳体壁的内侧全表面地以耐热的金属箔加衬里。尤其地,整个高压储能器壳体可以从内部以这样的金属箔加衬里。可以例如使用钢箔作为金属箔。钢箔非常耐热并且此外成本非常低。
作为用于壳体壁的材料,可以使用轻金属材料、尤其是含铝的材料或铝或塑料材料。
按照本发明的一种扩展方案,在对壳体壁加衬里之前,根据壳体的内部形状来对金属箔进行成形。所述成形可以例如通过深拉和/或冲压和/或折叠或通过其他成形方法进行。
用于加衬里的金属箔可以由多个箔件组成。在“组装位置”或“接触位置”处可以规定,彼此相邻的箔件彼此重叠。在这些位置处,各个箔件可以彼此连接,例如通过粘接、熔焊、螺纹连接、冲压、折叠、焊接或通过其他连接技术。
此外可以规定,所述金属箔从内部紧固在壳体壁上。这可以例如通过粘接和/或螺纹连接和/或冲挤或通过其他紧固方法进行。
此外可以规定,将至少一个构件引入到壳体中,所述至少一个构件可以在高压储能器的运行期间至少以预定的程度关于壳体壁移动,并且在这些构件和金属箔之间引入柔性的“贴靠元件”,由此阻止在所述构件移动时金属箔打滑。所述“构件”可以例如是冷却系统的构件。在不同的温度水平或不同的运行条件时可以引起,各个冷却系统构件热膨胀并且因此轻微地移动到高压储能器壳体上。在该情况中有利的是,在这样的构件和金属箔之间引入柔性的贴靠元件(参考上面的阐述)。由此“移动的构件”机械地从金属箔脱耦,由此阻止在构件移动时或在构件伸展时金属箔不期望地打滑。
在本发明的一种扩展方案中可以规定,电储能和冷却系统具有多个电储能单体或多个分别通过多个电储能单体形成的储能模块并且具有由冷却或制冷剂流经的冷却元件,所述冷却元件与储能单体置于热连接中或将所述冷却元件与储能单体置于热连接中。
出于完整性要提到,本发明的主题不仅是用于制造高压储能器的方法,而且也是按照该方法制造的高压储能器或包含按照该方法制造的高压储能器的车辆。
附图说明
下面结合附图更详细地阐述本发明。在附图中:
图1a-1d示出用于制造按照本发明的高压储能器壳体的各个步骤。
具体实施方式
如由图1可看出的那样,首先是高压储能器壳体1,所述高压储能器壳体具有多个壳体壁、例如侧向的壳体壁1a、1b、壳体底部1c和壳体盖1d。
随后制造耐热的金属箔2,所述金属箔可以由多个箔件2a、2b组成。这在图1b中示出。随后以由多个金属箔件组成的金属箔2a、2b对壳体壁1a-1d的内侧加衬里。如由图1c可看出的那样,将箔件2b施加到壳体盖1d的内侧或者说下侧上。将箔件2a施加到侧向的壳体壁1a、1b和壳体底部1c的内侧上。在以耐热的金属箔2对高压储能器壳体1加衬里之后,将电储能和冷却系统构件(未示出)引入到高压储能器壳体1中,并且随后如在图1d中示出的那样闭锁高压储能器壳体1。
Claims (11)
1.一种用于制造高压储能器的方法,所述高压储能器尤其是用于车辆,所述方法具有如下步骤:
-制造壳体(1),所述壳体具有多个壳体壁(1a-1d),
-将电储能和冷却系统引入到壳体(1)中,并且
-闭锁壳体(1),
其特征在于,尤其是在引入储能和冷却系统之前,将壳体壁的内侧以耐热的金属箔加衬里。
2.按照权利要求1所述的方法,其特征在于,将壳体壁(1a1-d)的内侧全表面地以耐热的金属箔(2)加衬里。
3.按照权利要求1或2所述的方法,其特征在于,使用由钢制成的箔作为金属箔(2)。
4.按照权利要求1至3之一所述的方法,其特征在于,使用轻金属材料、尤其是含铝的材料或铝或塑料材料作为用于壳体壁(1a-1d)的材料。
5.按照权利要求1至4之一所述的方法,其特征在于,在对壳体壁(1a-1d)加衬里之前,根据壳体(1)的内部形状尤其是通过如下方式来对金属箔进行成形,即
-深拉和/或
-冲压和/或
-折叠。
6.按照权利要求1至5之一所述的方法,其特征在于,用于加衬里的金属箔(2)由多个箔件(2a、2b)组成,彼此相邻的箔件彼此连接和/或彼此重叠。
7.按照权利要求1至6之一所述的方法,其特征在于,将金属箔(2)尤其是通过如下方式紧固在壳体壁(1a-1d)上,即
-粘接和/或
-螺纹连接和/或
-冲挤。
8.按照权利要求1至7之一所述的方法,其特征在于,将至少一个构件引入到壳体(1)中,所述至少一个构件能够在高压储能器的运行期间至少以预定的程度关于壳体壁(1a-1d)移动,并且在这些构件和金属箔(2)之间引入柔性的贴靠元件,由此阻止在所述构件移动时金属箔(2)打滑。
9.按照权利要求1至8之一所述的方法,其特征在于,所述电储能和冷却系统具有多个电储能单体或多个电储能单体形成的储能模块和由冷却或制冷剂流经的冷却元件,所述冷却元件与储能单体置于热连接中或将所述冷却元件与储能单体置于热连接中。
10.按照权利要求1至9之一所述的方法,其特征在于,将所述金属箔与壳体(1)导电连接。
11.一种高压储能器,其特征在于,所述高压储能器根据按照权利要求1-10之一所述的方法制造。
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US20220029236A1 (en) | 2022-01-27 |
WO2020126354A1 (de) | 2020-06-25 |
DE102018133007A1 (de) | 2020-06-25 |
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