CN109314288B - 具有改进的组装结构的空气冷却电池组 - Google Patents
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Abstract
公开了一种空气冷却电池组,包括:单体组件,所述单体组件中堆叠有多个单体;空气管道,所述空气管道被放置成与所述单体组件接触,并且具有形成在其中的空气通道,冷却空气可以穿过所述空气通道移动;联接凹槽,所述联接凹槽形成在所述空气管道中,从而在其长度方向上延伸;BMS板,所述BMS板具有用于管理所述单体的BMS,并且通过滑动插入所述联接凹槽中的滑动件来组装到所述空气管道。
Description
技术领域
本申请要求2016年12月14日在韩国提交的韩国专利申请No.10-2016-0170653的优先权,其公开内容通过引用并入本文。
背景技术
通常,电池组包括通过串联和/或并联集合在一起的多个单体。所述电池组典型地包括单体组件和框架,所述单体组件具有沿着一个方向布置的多个单体,所述框架具有能够围绕所述单体组件的板。
在传统的电池组中,如果冷却通道被单独设计成用于冷却电池单体的空气冷却型,则单独地需要由所述冷却通道占据的空间。因此,难以简化结构,并且限制了待安装的单体的容量。
换句话说,传统的电池组通常被构造成使得冷却空气穿过位于容纳单体组件的壳体的一侧处的入口引入,移动穿过空隙,并且然后穿过冷却片而被排出到位于另一侧处的出口。
然而,难以减轻如上构造的电池组的重量。此外,所述电池组中需要很大的空间来安装元件,并且减少了在所述单体的厚度方向上的空间利用,从而由于低导热率而减少了容量,并降低了冷却性能。此外,由于需要空隙和冷却片,因此成本增加。
此外,在传统的电池组中,如图1所示,其上安装有电气元件组的电路板1通过螺栓连接(参见圆圈标记)来简单地组装在单体组件2的堆叠单体结构的顶部边缘处。
然而,由于增加了螺栓连接过程,所以使用图1所示的螺栓连接过程的组装结构具有许多过程,并且还增加了材料成本,而提高了产品价格。此外,需要提供用于在所述电路板1的外周边缘处以规则的间隔联接螺栓3的空间,这导致复杂的构造。因此,要求其替代技术方案。
发明内容
技术问题
本公开被设计为解决相关技术的问题,因此本公开旨在提供一种具有改进的组装结构的电池组,使得可以在无需螺栓连接过程的情况下将电路板附接到电池组或从电池组拆卸。
本公开还旨在提供一种电池组,电路板可以安装到该电池组,以通过冷却具有高导热率的单体边缘来改善冷却性能,并且增强在单体堆叠方向上的空间利用。
技术解决方案
在本公开的一个方面中,提供了一种空气冷却电池组,包括:单体组件,所述单体组件中堆叠有多个单体;空气管道,所述空气管道被布置成接触所述单体组件,并且所述空气管道中形成有空气通道,以允许冷却空气从所述空气通道移动穿过;联接凹槽,所述联接凹槽形成在所述空气管道处,以在纵向方向上伸长;电池管理系统(BMS)板,所述BMS板具有管理所述单体的BMS,并且所述BMS板通过被滑动插入到所述联接凹槽中的滑动件而组装到所述空气管道。
所述滑动件可以分别设置在所述BMS板的两侧边缘处,并且所述联接凹槽可以设置在所述空气管道的顶部处。
所述空气管道可以由铝材料制成,并且所述滑动件可以由塑料材料制成并且被插入到所述联接凹槽中。
优选地,所述滑动件可以具有斜坡结构,所述斜坡结构在与其插入方向相反的方向上具有逐渐增加的厚度。
根据本公开的空气冷却电池组还可以包括:具有孔形式或凹槽形式的固定部;和由塑料材料制成的止动件,所述止动件具有钩形式,并且被设置在所述BMS板的一部分处,在所述滑动件完全插入的状态下,所述止动件被联接到所述固定部。
在所述空气管道的内部可以设置桁架结构。
有利效果
根据本公开,所述空气冷却电池组具有以下效果。
首先,由于仅通过将BMS板推入电池组中来完全组装所述BMS板,因此,与传统的螺栓连接组装工作相比,可以减少过程数量和材料成本。
第二,通过使用被布置成与所述单体组件接触的空气管道,可以稳定地支撑所述BMS板的滑动。
第三,由于设置在所述空气通道中的桁架结构,可以改善冷却性能并增强机械刚性。
第四,由于设置有在与所述滑动件的插入方向相反的方向上具有逐渐增加的厚度的斜坡结构,所以所述BMS板可以紧密地联接到所述空气管道。
第五,可以通过钩状结构来牢固地固定所述BMS板的组装状态。
第六,由于所述BMS板的两侧边缘与所述空气管道接触并联接,因此可以有效地将所述BMS板产生的热量散发到空气管道。
附图说明
附图示出了本公开的优选实施例,并且与前述公开一起用于提供对本公开的技术特征的进一步理解,并且因此本公开不应被解释为限于附图。
图1是示出传统电池组的透视图。
图2是示出根据本公开的实施例的空气冷却电池组的透视图。
图3是示出图2的部分A的放大透视图。
图4是示出图3的滑动件被略微进一步插入的状态的透视图。
图5是示出图2的部分B的放大透视图。
图6是示出图5的止动件被钩到固定部的状态的透视图。
具体实施方式
图2是示出根据本公开的实施例的空气冷却电池组的透视图。
参考图2,根据本公开的实施例的电池组包括:单体组件10,所述单体组件10具有多个单体;空气管道20,所述空气管道20被布置成接触所述单体组件10的两侧边缘;以及BMS板30,所述BMS板30被可拆卸地组装到形成在所述空气管道20的顶部处的联接凹槽22。
所述单体组件10的每个单体具有薄板状主体,并且优选地具有袋状单体结构。所述袋状单体包括正电极、分隔物、和负电极,正电极、分隔物、和负电极交替地堆叠,使得电极突片从其至少一侧引出。通过将包含电极活性材料、粘结剂树脂、导电剂和其他添加剂的浆料涂覆到集电器的至少一侧来制造所述正电极和负电极。在正电极的情况中,可以将诸如含锂过渡金属氧化物的普通正电极活性材料用作电极活性材料。在负电极的情况中,可以将诸如能够嵌入锂离子和使得锂离子脱嵌的锂金属、碳质材料、金属化合物或其混合物的普通负电极活性材料用作电极活性材料。此外,所述分隔物可以采用用于锂二次电池的普通多孔聚合物膜。
作为与所述电极组件一起包含在袋壳体中的电解质,可以采用用于锂二次电池的普通电解质。所述袋壳体由片材形成,并具有用于容纳所述电极组件的容纳部。优选地,所述袋壳体通过联接第一壳体和第二壳体而形成,所述第一壳体和第二壳体通过将片材加工成预定形状而制备。所述袋壳体的片材具有多层结构,所述多层结构包括:外树脂层,所述外树脂层被设置在最外侧,且由诸如聚对苯二甲酸乙二醇酯(PET)或尼龙的绝缘材料制成;金属层,所述金属层由铝材料制成,以保持机械强度,并防止水分和氧气的渗透;以及内树脂层,所述内树脂层由聚烯烃基材料制成,并且由于热粘合性而用作密封材料。
在所述袋壳体的片材中,如果必要,可以在所述内树脂层和金属层之间以及所述外树脂层和金属层之间介入预定的粘合树脂层。所述粘合树脂层用于不同种类的材料之间的平顺附接,并且形成为单层或多层。所述粘合材料通常可以由聚烯烃树脂、或用于平顺加工的聚氨酯树脂或其混合物制成。
在所述单体组件10中,多个单体在厚度方向上以预定间隔布置,以形成基本上堆叠的结构。
所述空气管道20用于对所述单体组件10进行空气冷却,并且包括管道,所述管道由铝材料制成,并具有用于使冷却空气移动的空气通道。所述空气管道20的朝向所述单体组件10定向的外表面被布置成与所述单体组件10的边缘部分接触。此时,优选的是,由具有高导热率的导热接口材料(TIM)制成的传热材料被介于所述单体组件10的边缘部分和所述空气管道20之间。
所述空气管道20的管道的内部设置有桁架结构21,以改善冷却性能,并提供足够的机械刚度,用于保护所述单体组件10免受外部冲击等,所述桁架结构21通过重复布置框架以形成基本上三角形形状而形成。
此外,在所述空气管道20的桁架结构21的表面上形成多个不平坦图案。所述不平坦图案通过增加所述空气管道20的内表面积来改善冷却性能。
所述空气管道20分别设置在所述单体组件10的两侧上,并且被布置成使得其纵向方向以与所述单体组件10的纵向方向相同的方式延伸。
在所述空气管道20的顶部处设置有可以联接凹槽22,BMS板30被组装到联接凹槽22。优选地,所述联接凹槽22可以由形成在所述空气管道20的顶部处的引导肋23来提供。所述引导肋23与所述空气管道20一体形成,以在所述空气管道20的顶表面处沿着纵向方向延伸,并且所述联接凹槽22形成在所述引导肋23处,使得所述联接凹槽22具有形截面,并且其开口朝向所述电池组的内部。
所述BMS板30是电路板组件,用于管理所述单体的电池管理系统(BMS)和所述电池组所需的各种电气元件被安装至所述BMS板30。所述BMS板30可以设置为单个板或组装的多个板。
所述BMS板30被布置在所述单体组件的堆叠结构的上部处,并且通过将所述BMS板30的两侧边缘可滑动地插入所述空气管道20的联接凹槽22中而对其进行组装。为此,如图3所示,杆型滑动件31形成在所述BMS板30的两侧边缘处,以在所述BMS板30的纵向方向上延伸,所述杆型滑动件31的形状和尺寸被设定为可插入到所述联接凹槽22中。
所述滑动件31优选地通过注塑成型而一体地形成在所述BMS板30处。在所述滑动件31的一部分中形成有斜坡结构32,所述斜坡结构32被倾斜为在与插入方向相反的方向上具有逐渐增加的厚度。所述斜坡结构32用于将所述滑动件31按压到所述联接凹槽22中,并防止所述BMS板30由于外部振动或冲击而与所述空气管道20分离或者由于摇动而受损。
由于形成所述联接凹槽22的引导肋23与所述空气管道20一体地由铝材料制成,所以优选的是,所述滑动件31由塑料材料制成,并紧密地插入到所述联接凹槽22中。优选的是,所述斜坡结构32靠近所述滑动件31的后部定位,使得所述滑动件31紧密地配合到所述联接凹槽22中,同时所述BMS板30被完全插入。
为了更加牢固地对以滑动方式组装的所述BMS板30的位置进行固定,在所述BMS板30的一部分上设置有止动件33,所述止动件33具有钩状结构并由塑料材料制成。所述止动件33可以在形成所述BMS板30时一体地形成。此外,在所述空气管道20处或位于所述BMS板30下方的预定支撑板处设置有固定部34,所述固定部34具有与所述止动件33相对应的孔形式或凹槽形式。当所述滑动件31被完全插入时,所述止动件33被钩到所述固定部34,以有效地防止所述BMS板30移动。
如上构造的根据本公开的实施例的电池组通过以下方式组装:将所述空气管道20布置在所述单体组件10的两侧边缘处,然后在所述单体组件10上方的位置处将所述BMS板30滑动联接到所述空气管道20。
所述桁架结构21被设置在所述空气管道20内,以确保足够的刚度,并增加传热面积。此外,由于在所述桁架结构21处形成有多个不平坦图案,所以进一步增加了传热面积,以改善冷却性能。
被引入到所述空气管道20的一个开口中的冷却空气沿着所述空气管道20内部的空气通道移动,并且在相反的开口处被强制排出,在此期间,所述单体组件10被空气冷却。
在所述BMS板30的组装过程中,设置在所述BMS板30的边缘处的滑动件31的前端被推入并插入到集成在所述空气管道20的顶部处的引导肋23的联接凹槽22中,使得所述BMS板30被布置在所述单体组件10的上部处。
在所述BMS板30即将完全插入到所述空气管道20之前,由于所述滑动件31的斜坡结构32,所述BMS板30逐渐被更紧地插入,最后,所述止动件33钩住所述固定部34,以固定组装状态。
借助于所述BMS板30的两侧边缘与所述空气管道20接触联接的结构,可以有效地将所述BMS板30产生的热量传导到所述空气管道20并进行冷却。
与传统电池组相比,因为在联接所述BMS板30可以省略螺栓连接过程,因此根据本公开的电池组可以简化组装过程并降低材料成本。
此外,由于利用设置在所述单体组件的两侧处的空气管道20来冷却所述电池组,因此可以增强在所述单体的厚度方向上的空间利用。而且,通过设置在所述空气管道20内部的桁架结构21,可以充分确保机械刚度,并且改善冷却性能。
已经详细描述了本公开。然而,应该理解的是,根据所述详细描述,本公开范围内的各种变化和改型对于本领域技术人员将变得显而易见,因此仅以说明的方式给出了示出本发明优选实施例的详细描述和具体实例。
工业实用性
如果应用本发明,则与传统的螺栓连接组装工作相比,改进了将BMS板插入电池组的组装工作,从而减少了过程数量和材料成本。
Claims (5)
1.一种空气冷却电池组,包括:
单体组件,所述单体组件中堆叠有多个单体;
空气管道,所述空气管道被布置成接触所述单体组件,并且所述空气管道中形成有空气通道,以允许冷却空气移动穿过所述空气通道;
联接凹槽,所述联接凹槽形成在所述空气管道处,以在纵向方向上伸长;和
电池管理系统板,所述电池管理系统板具有用于管理所述单体的电池管理系统,并且所述电池管理系统板通过被滑动插入到所述联接凹槽中的滑动件而组装到所述空气管道,
其中,所述空气管道被分别布置在所述单体组件的两侧边缘处,
其中,所述滑动件被分别设置在所述电池管理系统板的两侧边缘处,并且
其中,所述联接凹槽被设置在所述空气管道的顶部处,
其中,沿着纵向方向伸长的引导肋形成在所述空气管道的顶表面处以与所述空气管道成一体,并且
2.根据权利要求1所述的空气冷却电池组,
其中,所述滑动件具有斜坡结构,所述斜坡结构在与其插入方向相反的方向上具有逐渐增加的厚度。
3.根据权利要求2所述的空气冷却电池组,
其中,所述空气管道由铝材料制成,并且
其中,所述滑动件由塑料材料制成,并且被插入到所述联接凹槽中。
4.根据权利要求3所述的空气冷却电池组,还包括:
固定部,所述固定部具有孔形式或凹槽形式;和
由塑料材料制成的止动件,所述止动件具有钩形式,并且被设置在所述电池管理系统板的一部分处,在所述滑动件完全插入的状态下,所述止动件被联接到所述固定部。
5.根据权利要求1所述的空气冷却电池组,其中,在所述空气管道的内部设置有桁架结构。
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