CN115360461A - 一种带加热功能的锂电池组 - Google Patents

一种带加热功能的锂电池组 Download PDF

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CN115360461A
CN115360461A CN202210998095.5A CN202210998095A CN115360461A CN 115360461 A CN115360461 A CN 115360461A CN 202210998095 A CN202210998095 A CN 202210998095A CN 115360461 A CN115360461 A CN 115360461A
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electric core
battery pack
core group
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heating function
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倪捷
张芳勇
马卫东
张龙
朱艳
傅国平
于林金
祝强
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Jinhua Lvchi New Energy Technology Co ltd
Zhejiang Luyuan Electric Vehicle Co Ltd
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Zhejiang Luyuan Electric Vehicle Co Ltd
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Abstract

本发明公开了一种带加热功能的锂电池组,包括电池外壳、电芯组,电芯组由若干个阵列分布的电芯固定在电芯支架上形成,电芯之间通过镍带连接,电芯组位于电池外壳内,还包括电芯组极耳连接板、BMS保护组件、绝缘加热板,电芯组外设有电芯组底壳、电芯组上盖,电芯组极耳连接板与镍带电连接,绝缘加热板与电芯组极耳连接板电连接,电芯组上盖与电芯组底壳配合封闭电芯组、电芯组极耳连接板,电芯组上盖盖合在电芯组极耳连接板上方,BMS保护组件拆卸式连接在电芯组上盖外侧并与电芯组极耳连接板电连接。

Description

一种带加热功能的锂电池组
技术领域
本发明涉及一种锂电池组,尤其涉及一种带加热功能的锂电池组。
背景技术
市场上采用锂电池作为动力的电动自行车上在低温环境下会影响锂电池正常充电,仅靠将电动自行车转移到室内,靠室温对锂电池进行缓慢升温则效率太低,极大地限制了一些寒冷地区的出行,因此需要改进。
发明内容
本发明针对现有技术中存在的采用锂电池作为动力的电动自行车上在低温环境下会影响锂电池正常充电,限制了一些寒冷地区出行等缺陷,提供了新的一种带加热功能的锂电池组。
为了解决上述技术问题,本发明通过以下技术方案实现:
一种带加热功能的锂电池组,包括电池外壳、电芯组,所述电芯组由若干个阵列分布的电芯固定在电芯支架上形成,所述电芯之间通过镍带连接,所述电芯组位于所述电池外壳内,还包括电芯组极耳连接板、BMS保护组件、绝缘加热板,所述电芯组外设有电芯组底壳、电芯组上盖,所述电芯组极耳连接板与所述镍带电连接,所述绝缘加热板与所述电芯组极耳连接板电连接,所述电芯组上盖与所述电芯组底壳配合封闭所述电芯组、电芯组极耳连接板,所述电芯组上盖盖合在所述电芯组极耳连接板上方,所述BMS保护组件拆卸式连接在所述电芯组上盖外侧并与所述电芯组极耳连接板电连接。
电芯组外设置电芯组底壳、电芯组上盖,电芯组底壳与电芯组上盖闭合形成密闭的空间能够对电芯组形成进一步的保护;电芯组极耳连接板用于连通通过镍带连接的各个电芯之间的正极和负极,从而使电芯组形成完整的电流回路;BMS保护组件连接电芯组极耳连接板起到控制电芯组内电流的作用,能够防止电芯组与电芯组极耳连接板受损;绝缘加热板连接电芯组极耳连接板受BMS保护组件控制,对电芯组底壳与电芯组上盖闭合形成密闭的空间内进行加热,从而确保低温环境下电芯组的温度能够到达正常充放电的标准。
作为优选,上述所述的一种带加热功能的锂电池组,还包括金属导热片,所述电芯组底壳上设置有贯穿的固定孔,所述金属导热片固定在所述固定孔内,所述金属导热片的外侧与所述绝缘加热板接触,所述金属导热片的内侧与所述电芯组接触。
金属导热片一侧与电芯组接触,另一侧与绝缘加热板接触,利用金属导热性能强的特点通过金属导热片将绝缘加热板散发的热量均匀的传递给电芯组,使电芯组受热均匀。
作为优选,上述所述的一种带加热功能的锂电池组,所述金属导热片的外沿设置有阶梯状结构,所述金属导热片上的阶梯状结构与所述固定孔卡合。
阶梯状结构与固定孔的内沿形成配合,使导热金属片与电芯组底壳内侧相抵,从而对导热金属片进行一个更好的固定。
作为优选,上述所述的一种带加热功能的锂电池组,所述电芯组数量至少为两组,所述绝缘加热板设置在相邻的两组电芯组之间。
绝缘加热板设置在相邻的两组电芯组之间,一方面使相邻的两组电芯组受热均匀,另一方面使绝缘加热板加热面积的利用率最大化,提高加热效率。
作为优选,上述所述的一种带加热功能的锂电池组,所述电芯组极耳连接板上设置有第一集成端口,所述BMS保护组件上设置有第二集成端口,所述第一集成端口穿过所述电芯组上盖与所述第二集成端口插接。
第二集成端口与第一集成端口配合,形成可拆卸的插接式结构,便于BMS保护组件的连接和拆卸,一方面在电池回收过程中便于回收处理无损拆除,另一方面插接式结构使本发明上的BMS保护组件能够二次安装。
作为优选,上述所述的一种带加热功能的锂电池组,所述BMS保护组件的下端设置有限位柱,所述电芯组上盖上设置有限位孔,所述限位孔与所述限位柱相对应。
限位孔与限位柱配合,在BMS保护组件通过第二集成端口与第一集成端口完成插接后,防止BMS保护组件受外力移动,导致第二集成端口与第一集成端口受损。
作为优选,上述所述的一种带加热功能的锂电池组,所述电芯组上盖上还设置有电源线连接盒,所述电源线连接盒内设置有贯穿所述电芯组上盖的通孔,所述电芯组极耳连接板采用电源线穿过所述通孔与所述电源线连接盒内部连接。
将电源线连接盒设置在电芯组上盖提升本发明的一体性,同时在电源线连接盒内设置通孔,将连接电芯组极耳连接板的电源线穿过通孔引入电源线连接盒内,能够避免多余的走线,同时将电源线隐藏遮蔽,保护电源线。
作为优选,上述所述的一种带加热功能的锂电池组,所述电源线连接盒还设置有保险丝插件、电源插件。
电源插件、保险丝插件分别作用于向电芯组充电以及充电时的保护。
作为优选,上述所述的一种带加热功能的锂电池组,所述电芯组底壳与电芯组上盖形成的封闭空间内填充有绝缘导热胶,所述BMS保护组件内填充有绝缘导热胶。
填充绝缘导热胶,由于绝缘导热胶的热传递性能比空气更优异,因此能够使封闭空间内的电芯组受热更均匀,同时还能起到排出封闭空间内的空气,隔绝水汽保护电芯组的作用
作为优选,上述所述的一种带加热功能的锂电池组,所述绝缘加热板的厚度在0.5mm~3mm之间。
上述厚度范围内的绝缘加热板能够在确保产生足够发热量的前提下,使相邻的两个电芯组贴合,使本发明的结构紧凑。
作为优选,上述所述的一种带加热功能的锂电池组,还包括温度传感器、铜带,所述铜带覆盖在所述镍带表面,所述温度传感器与所述电芯组极耳连接板电连接,所述温度传感器与所述铜带贴合。
铜带起到传导热量的作用,能够与温度传感器配合,测得电芯组的温度,从而配合及控制绝缘加热板的加热功能,由于铜带自身优异的导热性,温度传感器在铜带的上端能够准确的测得电芯组上的温度。
附图说明
图1为本发明中电芯组、电芯组底壳、电芯组上盖的结构示意图一;
图2为本发明的爆炸图一;
图3为本发明中电芯组底壳与绝缘加热板的结构示意图;
图4为本发明中电芯组与电芯组上盖的结构示意图;
图5为本发明的爆炸图二;
图6为本发明中电芯组、电芯组底壳、电芯组上盖的结构示意图二;
图7为图6中A部的局部放大图。
具体实施方式
下面结合附图1-7和具体实施方式对本发明作进一步详细描述,但它们不是对本发明的限制:
实施例1
一种带加热功能的锂电池组,包括电池外壳1、电芯组3,所述电芯组3由若干个阵列分布的电芯固定在电芯支架31上形成,所述电芯之间通过镍带32连接,所述电芯组3位于所述电池外壳1内,还包括电芯组极耳连接板6、BMS保护组件5、绝缘加热板7,所述电芯组3外设有电芯组底壳2、电芯组上盖4,所述电芯组极耳连接板6与所述镍带32电连接,所述绝缘加热板7与所述电芯组极耳连接板6电连接,所述电芯组上盖4与所述电芯组底壳2配合封闭所述电芯组3、电芯组极耳连接板6,所述电芯组上盖4盖合在所述电芯组极耳连接板6上方,所述BMS保护组件5拆卸式连接在所述电芯组上盖4外侧并与所述电芯组极耳连接板6电连接。
作为优选,还包括金属导热片21,所述电芯组底壳2上设置有贯穿的固定孔22,所述金属导热片21固定在所述固定孔22内,所述金属导热片21的外侧与所述绝缘加热板7接触,所述金属导热片21的内侧与所述电芯组3接触。
作为优选,所述金属导热片21的外沿设置有阶梯状结构,所述金属导热片21上的阶梯状结构与所述固定孔22卡合。
作为优选,所述电芯组3数量至少为两组,所述绝缘加热板7设置在相邻的两组电芯组3之间。
作为优选,所述电芯组极耳连接板6上设置有第一集成端口61,所述BMS保护组件5上设置有第二集成端口52,所述第一集成端口61穿过所述电芯组上盖4与所述第二集成端口52插接。
作为优选,所述BMS保护组件5的下端设置有限位柱51,所述电芯组上盖4上设置有限位孔41,所述限位孔41与所述限位柱51相对应。
作为优选,所述电芯组上盖4上还设置有电源线连接盒42,所述电源线连接盒42内设置有贯穿所述电芯组上盖4的通孔423,所述电芯组极耳连接板6采用电源线穿过所述通孔423与所述电源线连接盒42内部连接。
作为优选,所述电源线连接盒42还设置有保险丝插件422、电源插件421。
作为优选,所述电芯组底壳2与电芯组上盖4形成的封闭空间内填充有绝缘导热胶,所述BMS保护组件5内填充有绝缘导热胶。
作为优选,所述绝缘加热板7的厚度在0.5mm~3mm之间。
作为优选,还包括温度传感器8、铜带9,所述铜带9覆盖在所述镍带32表面,所述温度传感器8与所述电芯组极耳连接板6电连接,所述温度传感器8与所述铜带9贴合。
总之,以上所述仅为本发明的较佳实施例,凡依本发明申请专利的范围所作的均等变化与修饰,皆应属本发明的涵盖范围。

Claims (11)

1.一种带加热功能的锂电池组,包括电池外壳(1)、电芯组(3),所述电芯组(3)由若干个阵列分布的电芯固定在电芯支架(31)上形成,所述电芯之间通过镍带(32)连接,所述电芯组(3)位于所述电池外壳(1)内,其特征在于:还包括电芯组极耳连接板(6)、BMS保护组件(5)、绝缘加热板(7),所述电芯组(3)外设有电芯组底壳(2)、电芯组上盖(4),所述电芯组极耳连接板(6)与所述镍带(32)电连接,所述绝缘加热板(7)与所述电芯组极耳连接板(6)电连接,所述电芯组上盖(4)与所述电芯组底壳(2)配合封闭所述电芯组(3)、电芯组极耳连接板(6),所述电芯组上盖(4)盖合在所述电芯组极耳连接板(6)上方,所述BMS保护组件(5)拆卸式连接在所述电芯组上盖(4)外侧并与所述电芯组极耳连接板(6)电连接。
2.根据权利要求1所述的一种带加热功能的锂电池组,其特征在于:还包括金属导热片(21),所述电芯组底壳(2)上设置有贯穿的固定孔(22),所述金属导热片(21)固定在所述固定孔(22)内,所述金属导热片(21)的外侧与所述绝缘加热板(7)接触,所述金属导热片(21)的内侧与所述电芯组(3)接触。
3.根据权利要求2所述的一种带加热功能的锂电池组,其特征在于:所述金属导热片(21)的外沿设置有阶梯状结构,所述金属导热片(21)上的阶梯状结构与所述固定孔(22)卡合。
4.根据权利要求1所述的一种带加热功能的锂电池组,其特征在于:所述电芯组(3)数量至少为两组,所述绝缘加热板(7)设置在相邻的两组电芯组(3)之间。
5.根据权利要求1所述的一种带加热功能的锂电池组,其特征在于:所述电芯组极耳连接板(6)上设置有第一集成端口(61),所述BMS保护组件(5)上设置有第二集成端口(52),所述第一集成端口(61)穿过所述电芯组上盖(4)与所述第二集成端口(52)插接。
6.根据权利要求5所述的一种带加热功能的锂电池组,其特征在于:所述BMS保护组件(5)的下端设置有限位柱(51),所述电芯组上盖(4)上设置有限位孔(41),所述限位孔(41)与所述限位柱(51)相对应。
7.根据权利要求1所述的一种带加热功能的锂电池组,其特征在于:所述电芯组上盖(4)上还设置有电源线连接盒(42),所述电源线连接盒(42)内设置有贯穿所述电芯组上盖(4)的通孔(423),所述电芯组极耳连接板(6)采用电源线穿过所述通孔(423)与所述电源线连接盒(42)内部连接。
8.根据权利要求7所述的一种带加热功能的锂电池组,其特征在于:所述电源线连接盒(42)还设置有保险丝插件(422)、电源插件(421)。
9.根据权利要求1所述的一种带加热功能的锂电池组,其特征在于:所述电芯组底壳(2)与电芯组上盖(4)形成的封闭空间内填充有绝缘导热胶,所述BMS保护组件(5)内填充有绝缘导热胶。
10.根据权利要求1所述的一种带加热功能的锂电池组,其特征在于:所述绝缘加热板(7)的厚度在0.5mm~3mm之间。
11.根据权利要求1所述的一种带加热功能的锂电池组,其特征在于:还包括温度传感器(8)、铜带(9),所述铜带(9)覆盖在所述镍带(32)表面,所述温度传感器(8)与所述电芯组极耳连接板(6)电连接,所述温度传感器(8)与所述铜带(9)贴合。
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