CN110534838A - 一种带有ptc加热功能和液冷功能的电池模组 - Google Patents

一种带有ptc加热功能和液冷功能的电池模组 Download PDF

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CN110534838A
CN110534838A CN201910742688.3A CN201910742688A CN110534838A CN 110534838 A CN110534838 A CN 110534838A CN 201910742688 A CN201910742688 A CN 201910742688A CN 110534838 A CN110534838 A CN 110534838A
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heat generating
generating core
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王文
桑家奎
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Wuhu Huizhan New Energy Technology Co Ltd
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Abstract

本发明提供一种带有PTC加热功能和液冷功能的电池模组，包括电池模组，所述电池模组上设置有PTC发热芯，所述电池模组一端设置有接线端子，PTC发热芯连接在接线端子上，通过接线端子连接电源，对PTC发热芯进行供电，所述电池模组的壳体一端设置有进水口，电池模组的壳体另一端设置有出水口，所述进水口和出水口之间通过带内流道冷板连接，冷却水通过进水口进入带内流道冷板，对电池模组进行冷却，并通过出水口流出。对电池模组的温度进行调节，保证电池模组处于最优的温度环境中工作，自动完成温度调节工作，避免人工控制存在失误，通过绝缘隔离垫对接线端子进行隔离保护，提高安全性。

Description

一种带有PTC加热功能和液冷功能的电池模组
技术领域
本发明涉及汽车电池领域，尤其涉及一种带有PTC加热功能和液冷功能的电池模组。
背景技术
电池包作为电动汽车上装载有电池组的主要储能元件，是电动汽车的关键部件，直接影响到电动汽车的性能。锂离子动力电池因其优异的功率输出特性和长寿命等优点，目前在电动汽车电池包中得到良好应用。但锂离子动力电池的性能对温度变化较敏感，特别是车辆上运用的大容量、高功率锂离子电池。车辆上的装载空间有限，车辆所需电池数目较大，电池均为紧密排列连接。当车辆在高速、低速、加速、减速等交替变换的不同行驶状况下运行时，电池会以不同倍率放电，以不同生热速率产生大量热量，加上时间累积以及空间影响会产生不均匀热量聚集，从而导致电池组运行环境温度复杂多变。由于发热电池体的密集摆放，中间区域必然热量聚集较多，边缘区域较少，增加了电池包中各单体之间的温度不均衡，加剧各电池模块、单体内阻和容量不一致性。如果长时间积累，会造成部分电池过充电和过放电，进而影响电池的寿命与性能，并造成安全隐患。如果电动汽车电池组在高温下得不到及时通风散热，将会导致电池组系统温度过高或温度分布不均匀，最终将降低电池充放电循环效率，影响电池的功率和能量发挥，严重时还将导致热失控，影响电池的安全性与可靠性；再者在低温下，电池内部的电化学反应由于受温度影响也不能够正常运行，需要对电池包进行加热。因此为了使电池包发挥最佳性能和寿命，需要优化电池包的结构，对它进行热管理，增加散热、加热设施，控制电池运行的温度环境。
发明内容
为解决上述问题，本发明的目的提供一种带有PTC加热功能和液冷功能的电池模组，通过PTC发热芯对电池模组进行加热，通过进水口和出水口向电池模组上的带内流道冷板内通入冷却水，进而对电池模组的温度进行调节，保证电池模组处于最优的温度环境中工作，解决了电池模组温度过高或过低影响其使用寿命的问题。
本发明提供一种带有PTC加热功能和液冷功能的电池模组，包括电池模组，所述电池模组上设置有PTC发热芯，所述电池模组一端设置有接线端子，PTC发热芯连接在接线端子上，通过接线端子连接电源，对PTC发热芯进行供电，所述电池模组的壳体一端设置有进水口，电池模组的壳体另一端设置有出水口，所述进水口和出水口之间通过带内流道冷板连接，冷却水通过进水口进入带内流道冷板，对电池模组进行冷却，并通过出水口流出。
进一步改进在于：所述电池模组上设置有温度传感器，所述进水口和出水口上均设置有阀门，通过温度传感器对电池模组的温度进行检测，并控制PTC发热芯工作及阀门的开闭。
进一步改进在于：所述接线端子与电池模组之间设置有绝缘隔离垫，通过绝缘隔离垫对接线端子进行隔离保护。
进一步改进在于：所述PTC发热芯的数量为两个，且一个PTC发热芯对应一个接线端子。
电池模组结构板的任意一侧为PTC发热芯体，通过接线端子与整车供电系统连接，直接给电池模组加热。另一侧的结构板自带内流道，进出水管焊接在结构板的两侧，通过进/出谁管与整车冷却液循环系统连接，给电池模组散热。电池模组的外壳上预留PTC发热芯体安装空腔，电池模组的外壳即为PTC电池加热板，电芯与模组外壳直接接触，提高了加热效率，减少导热硅胶垫，节约成本。通过接线端子与整车供电系统连接，直接给电芯加热。
本发明的有益效果：通过PTC发热芯对电池模组进行加热，通过进水口和出水口向电池模组上的带内流道冷板内通入冷却水，进而对电池模组的温度进行调节，保证电池模组处于最优的温度环境中工作，并且通过温度传感器对电池模组的温度进行检测，并控制PTC发热芯工作及阀门的开闭，自动完成温度调节工作，避免人工控制存在失误，通过绝缘隔离垫对接线端子进行隔离保护，提高安全性。
附图说明
图1是本发明的结构示意图。
图2是本发明的结构俯视图。
图3是本发明的结构后视图。
其中：1-电池模组，2- PTC发热芯，3-接线端子，4-进水口，5-出水口，6-带内流道冷板，7-温度传感器，8-绝缘隔离垫。
具体实施方式
为了加深对本发明的理解，下面将结合实施例对本发明作进一步详述，该实施例仅用于解释本发明，并不构成对本发明保护范围的限定。
如图1-3所示，本实施例提供一种带有PTC加热功能和液冷功能的电池模组，包括电池模组1，所述电池模组1上设置有PTC发热芯2，所述电池模组1一端设置有接线端子3，PTC发热芯2连接在接线端子3上，通过接线端子3连接电源，对PTC发热芯2进行供电，所述电池模组1的壳体一端设置有进水口4，电池模组1的壳体另一端设置有出水口5，所述进水口4和出水口5之间通过带内流道冷板6连接，冷却水通过进水口4进入带内流道冷板6，对电池模组1进行冷却，并通过出水口5流出。所述电池模组1上设置有温度传感器7，所述进水口4和出水口5上均设置有阀门，通过温度传感器7对电池模组1的温度进行检测，并控制PTC发热芯2工作及阀门的开闭。所述接线端子3与电池模组1之间设置有绝缘隔离垫8，通过绝缘隔离垫8对接线端子3进行隔离保护。所述PTC发热芯2的数量为两个，且一个PTC发热芯2对应一个接线端子3。通过PTC发热芯2对电池模组1进行加热，通过进水口4和出水口5向电池模组1上的带内流道冷板6内通入冷却水，进而对电池模组1的温度进行调节，保证电池模组1处于最优的温度环境中工作，并且通过温度传感器7对电池模组1的温度进行检测，并控制PTC发热芯2工作及阀门的开闭，自动完成温度调节工作，避免人工控制存在失误，通过绝缘隔离垫8对接线端子3进行隔离保护，提高安全性。

Claims (4)

1.一种带有PTC加热功能和液冷功能的电池模组，包括电池模组（1），所述电池模组（1）上设置有PTC发热芯（2），所述电池模组（1）一端设置有接线端子（3），PTC发热芯（2）连接在接线端子（3）上，通过接线端子（3）连接电源，对PTC发热芯（2）进行供电，其特征在于：所述电池模组（1）的壳体一端设置有进水口（4），电池模组（1）的壳体另一端设置有出水口（5），所述进水口（4）和出水口（5）之间通过带内流道冷板（6）连接，冷却水通过进水口（4）进入带内流道冷板（6），对电池模组（1）进行冷却，并通过出水口（5）流出。
2.如权利要求1所述的一种带有PTC加热功能和液冷功能的电池模组，其特征在于：所述电池模组（1）上设置有温度传感器（7），所述进水口（4）和出水口（5）上均设置有阀门，通过温度传感器（7）对电池模组（1）的温度进行检测，并控制PTC发热芯（2）工作及阀门的开闭。
3.如权利要求1所述一种带有PTC加热功能和液冷功能的电池模组，其特征在于：所述接线端子（3）与电池模组（1）之间设置有绝缘隔离垫（8），通过绝缘隔离垫（8）对接线端子（3）进行隔离保护。
4.如权利要求1所述的一种带有PTC加热功能和液冷功能的电池模组，其特征在于：所述PTC发热芯（2）的数量为两个，且一个PTC发热芯（2）对应一个接线端子（3）。
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