WO2022242084A1 - 一种延缓热扩散的快换式动力电池总成及电动车辆 - Google Patents
一种延缓热扩散的快换式动力电池总成及电动车辆 Download PDFInfo
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Abstract
本发明公开了一种延缓热扩散的快换式动力电池总成及电动车辆,属于电池的热失控技术领域,包括设置在下箱体总成容纳腔中的至少一个电池模组,所述电池模组两侧分别设置有横梁,电池模组两端分别设置有集成挡板和弹性装置。本发明公开了一种延缓热扩散的快换式动力电池总成及电动车辆,可以实现电池模组的快换更换,节省时间;并且能在电池发生热失控的第一时间内,将有危害的电池模组脱离整车,有效保证乘客的财产安全,有效延缓电池热失控,保证电池总成安全,实现总成的轻量化设计,降低研发成本。
Description
本发明公开了一种延缓热扩散的快换式动力电池总成及电动车辆,属于电池的热失控技术领域。
目前,新能源汽车的发展前景非常广阔。新能源汽车具有能量效率高、零排放、无污染、比能量高、噪音低、可靠性高等优点。动力电池系统作为新能源电池车的主要储能部件,主要保证整车的行驶、高低压零部件的用电需求、制动能量回收、混合动力发动机系统能量调节等功能。动力电池总成的安全性一直是其质量的的关键,随着高能量高功率的电池总成需求快速发展,带来电池总成的一系列安全问题。电动车还有充电速度慢的问题,一般的解决措施是大功率充电或者采用快换电池方案,但目前快换电池方案结构复杂,速度较慢。
发明内容
本发明的目的在于解决现有电池模组快换速度慢以及电池发生热失控时无法保证电池总成安全的问题,提出一种延缓热扩散的快换式动力电池总成及电动车辆。
本发明所要解决的问题是由以下技术方案实现的:
一种延缓热扩散的快换式动力电池总成,包括设置在下箱体总成容纳腔中的至少一个电池模组,所述电池模组两侧分别设置有横梁,两个横梁两端分别与容纳腔两侧的侧梁内壁支撑配合,电池模组两端分别设置有集 成挡板和弹性装置。
优选的是,所述电池模组包括两端均固定有端板的电池单体,所述电池单体和端板固定在集成式液冷板上,所述集成式液冷板两侧与横梁滑动连接。
优选的是,所述电池单体包括至少两个电池单体,相邻两个所述电池单体之间设置有隔热垫。
优选的是,两个所述横梁内侧分别设有安装槽体,所述集成式液冷板能通过两侧设有安装导轨沿着两侧的安装槽体移动。
优选的是,所述集成式液冷板内设有若干个冷却液流道,所述下箱体总成外侧端部设有冷却水管,所述冷却液管与下箱体总成的侧梁内部设有冷却液通道相通,所述侧梁内侧设有冷却液通道出口,所述冷却液流道与冷却液通道出口相配合,冷却液在冷却液流道、冷却液通道和冷却液管内流通。
优选的是,所述冷却液流道与冷却液通道出口通过垫片密封连接。
优选的是,两个所述横梁内侧分别设有滑动槽体,所述集成挡板能通过两端设有滑动柱体沿着两侧的滑动槽体移动。
优选的是,所述集成式液冷板上固定有强磁条,所述强磁条设置在集成挡板与集成式液冷板之间,所述集成挡板内设有电感线圈和感应传感器,所述电感线圈、感应传感器和电池模组与车载BMS电池系统电性连接。
优选的是,所述弹性装置为弹性板簧,所述弹性板簧为弧形或波浪形,所述弹性板簧两侧分别与端板和侧梁内壁线接触或面接触。
一种电动车辆,包括车辆本体和以上任一方案所述的延缓热扩散的快换式动力电池总成。
本发明相对于现有而言具有的有益效果:
本发明公开了一种延缓热扩散的快换式动力电池总成及电动车辆,当 集成挡板内设有的感应传感器接收到车载BMS电池系统发出的弹出信号,电感线圈改变电流方向从而产生与强磁条相反的磁力时,集成挡板会沿着两侧的滑动槽体弹出,此时电池模组另一端,弹性装置会释放出巨大的弹性势能,将电池模组沿着安装槽体弹出,可以实现电池模组的快换更换,节省时间;并且能在电池发生热失控的第一时间内,将有危害的电池模组脱离整车,有效保证乘客的财产安全,有效延缓电池热失控,保证电池总成安全,实现总成的轻量化设计,降低研发成本。
图1是本发明一种延缓热扩散的快换式动力电池总成的等轴测视图。
图2是本发明一种延缓热扩散的快换式动力电池总成中下箱体总成的结构示意图。
图3是本发明一种延缓热扩散的快换式动力电池总成中电池模组的等轴测视图。
图4是本发明一种延缓热扩散的快换式动力电池总成的部分等轴测视图。
图5是一种延缓热扩散的快换式动力电池总成的A处放大图。
图6是本发明一种延缓热扩散的快换式动力电池总成的部分结构示意图。
图7是一种延缓热扩散的快换式动力电池总成的B处放大图。
图8是一种延缓热扩散的快换式动力电池总成的电气连接示意图。
其中,1-下箱体总成,11-侧梁,12-横梁,121-安装槽体,122-滑动槽体,13-冷却液管,2-电池模组,21-电池单体,22-集成式液冷板,221-安装导轨,222-冷却液流道,23-隔热垫,24-固定扎带,25-端板,3-集成挡板,31-滑动柱体,4-弹性装置,5-强磁条。
以下根据附图1-8对本发明做进一步说明:
下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
如图1所示,本发明第一实施例在现有技术的基础上提供了一种延缓热扩散的快换式动力电池总成,其特征在于,包括:下箱体总成1、电池模组2、集成挡板3和弹性装置4,接下来将逐一介绍上述提到的部件的具体结构和连接方式。
首先介绍一下下箱体总成1,如图2所示,由侧梁11和底板围成的的容纳腔,容纳腔中的至少安装有一个电池模组2,本实施例为4个电池模组2,每个电池模组2两侧分别安装有横梁12,两个横梁12两端分别与容纳腔两侧的侧梁11内壁支撑配合,将空间分割成4块区域,既可以保证下 箱体的结构强度,又能将模组间隔开来,一旦某一区域的模组发生热失控,短时间内只能限制在本区域内部,无法快速蔓延,保护其他电池模组2。电池模组2两端分别安装有集成挡板3和弹性装置4,下箱体总成1外侧端部设有冷却水管13,冷却液管13与下箱体总成1的侧梁11内部设有冷却液通道相通,侧梁11内侧设有冷却液通道出口。
下面介绍一下电池模组2,如图3-4所示,包括:电池单体21、端板25和集成式液冷板22,电池单体21包括至少两个电池单体21,相邻两个电池单体21之间粘接有隔热垫23,通过调整电池单体21的数量,可以实现不同长度的模组方案设计,通过模组尺寸包括但不限于590mm-1300mm。电池单体21两端均粘接固定有端板25,然后用扎带24绑紧后整体粘接在集成式液冷板22上,集成式液冷板22两侧与横梁12滑动连接。隔热垫23是一种非金属材料,包括但不限于气凝胶、橡胶等,模组膨胀时可以吸收较大能量而被压缩,保证模组的正常膨胀。如图5所示,两个横梁12内侧分别设有安装槽体121,集成式液冷板22能通过两侧设有安装导轨221沿着两侧的安装槽体121移动。
如图6所示,集成式液冷板22内设有若干个冷却液流道222,集成式液冷板2采用多孔微通道型材结构,材料包含但不限于铝合金、钛合金、铁合金等高强度易成型材料,与热管理系统相连后,内部流通冷却液,既可以实现电池模组2的加热冷却,又可以实现电池模组的固定安全,减轻了下箱体总成的重量,实现电池包的轻量化设计。冷却液流道222与侧梁11内侧冷却液通道出口相配合,可以实现电池模组2内热管理系统的联通,冷却液在冷却液流道222、冷却液通道和冷却液管13内流通,冷却液流道222与冷却液通道出口通过垫片密封连接。当热管理系统不工作时,内部冷却液可以起到保温功能,冷却液比热容≥3300J/(kg*K),可以有效阻隔外界温度对电池包内部的影响,减少能量消耗。如图7所示,两个横梁12 内侧分别设有滑动槽体122,集成挡板3能通过两端设有滑动柱体31沿着两侧的滑动槽体122移动。弹性装置4为弹性板簧,弹性板簧为弧形或波浪形,材料包括但不限于不锈钢、高速钢等高强度材料,弹性板簧两侧分别与端板25和侧梁11内壁线接触或面接触。电池模组2一端的弹性板簧与另一端集成挡板3将电池模组2压紧,电池模组2发生膨胀后会产生较大势能,将弹性板簧进一步压缩,保证模组的正常膨胀。
集成式液冷板22上通过粘接固定有强磁条5,强磁条5采用Flex-10橡胶磁条,强磁条5安装在集成挡板3与集成式液冷板22之间,集成挡板3内设有电感线圈和感应传感器,如图8所示,电感线圈、感应传感器和电池模组2与车载BMS电池系统电性连接。
本实施例还提供一种电动车,包括车辆本体和延缓热扩散的快换式动力电池总成,该延缓热扩散的快换式动力电池总成安装在车辆本体上。
具体工作方式:
把电池模组2安装在下箱体总成1内,通过集成挡板3和弹性装置4将电池模组2挤压固定,集成挡板3中电感线圈和感应传感器上电工作,集成挡板3由于电感线圈电流作用与强磁条5相互吸引。当电池发生热失控时,电池模组会发生剧烈的爆炸燃烧,或者需要电池模组2的快速更换时,集成挡板3内设有的感应传感器接收到电池BMS发出的弹出信号,电感线圈改变电流方向从而产生与强磁条相反的磁力时,集成挡板3会沿着两侧的滑动槽体122弹出,此时电池模组2另一端,弹性装置4会释放出巨大的弹性势能,将电池模组2沿着安装槽体121弹出,可以实现电池模组的快换更换,节省时间;并且能在电池发生热失控的第一时间内,将有危害的电池模组脱离整车,有效保证乘客的财产安全,有效延缓电池热失控,保证电池总成安全,实现总成的轻量化设计,降低研发成本。
尽管本发明的实施方案已公开如上,但其并不仅仅限于说明书和实施 方式中所列运用。它完全可以被适用于各种适合本发明的领域。对于熟悉本领域的人员而言,可容易地实现另外的修改。因此在不背离权利要求及等同范围所限定的一般概念下,本发明并不限于特定的细节和这里示出与描述的图例。
Claims (10)
- 一种延缓热扩散的快换式动力电池总成,其特征在于,包括设置在下箱体总成(1)容纳腔中的至少一个电池模组(2),所述电池模组(2)两侧分别设置有横梁(12),两个所述横梁(12)两端分别与容纳腔两侧的侧梁(11)内壁支撑配合,所述电池模组(2)两端分别设置有集成挡板(3)和弹性装置(4)。
- 根据权利要求1所述的一种延缓热扩散的快换式动力电池总成,其特征在于,所述电池模组(2)包括两端均固定有端板(25)的电池单体(21),所述电池单体(21)和端板(25)固定在集成式液冷板(22)上,所述集成式液冷板(22)两侧与横梁(12)滑动连接。
- 根据权利要求2所述的一种延缓热扩散的快换式动力电池总成,其特征在于,所述电池单体(21)包括至少两个电池单体(21),相邻两个所述电池单体(21)之间设置有隔热垫(23)。
- 根据权利要求2或3所述的一种延缓热扩散的快换式动力电池总成,其特征在于,两个所述横梁(12)内侧分别设有安装槽体(121),所述集成式液冷板(22)能通过两侧设有安装导轨(221)沿着两侧的安装槽体(121)移动。
- 根据权利要求4所述的一种延缓热扩散的快换式动力电池总成,其特征在于,所述集成式液冷板(22)内设有若干个冷却液流道(222),所述下箱体总成(1)外侧端部设有冷却水管(13),所述冷却液管(13)与下箱体总成(1)的侧梁(11)内部设有冷却液通道相通,所述侧梁(11)内侧设有冷却液通道出口,所述冷却液流道(222)与冷却液通道出口相配合,冷却液在冷却液流道(222)、冷却液通道和冷却液管(13)内流通。
- 根据权利要求5所述的一种延缓热扩散的快换式动力电池总成,其 特征在于,所述冷却液流道(222)与冷却液通道出口通过垫片密封连接。
- 根据权利要求5或6所述的一种延缓热扩散的快换式动力电池总成,其特征在于,两个所述横梁(12)内侧分别设有滑动槽体(122),所述集成挡板(3)能通过两端设有滑动柱体(31)沿着两侧的滑动槽体(122)移动。
- 根据权利要求7所述的一种延缓热扩散的快换式动力电池总成,其特征在于,所述集成式液冷板(22)上固定有强磁条(5),所述强磁条(5)设置在集成挡板(3)与集成式液冷板(22)之间,所述集成挡板(3)内设有电感线圈和感应传感器,所述电感线圈、感应传感器和电池模组(2)与车载BMS电池系统电性连接。
- 根据权利要求8所述的一种延缓热扩散的快换式动力电池总成,其特征在于,所述弹性装置(4)为弹性板簧,所述弹性板簧为弧形或波浪形,所述弹性板簧两侧分别与端板和侧梁内壁线接触或面接触。
- 一种电动车辆,其特征在于,包括车辆本体和如权利要求1-9任一项所述的延缓热扩散的快换式动力电池总成。
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