CN203386820U - 动力锂电池防爆盖板 - Google Patents

动力锂电池防爆盖板 Download PDF

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CN203386820U
CN203386820U CN201320407535.1U CN201320407535U CN203386820U CN 203386820 U CN203386820 U CN 203386820U CN 201320407535 U CN201320407535 U CN 201320407535U CN 203386820 U CN203386820 U CN 203386820U
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倪志华
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Abstract

一种动力锂电池防爆盖板，包括盖板板体，盖板板体水平设置，盖板板体向上冲压有凸台，凸台包括凸台顶壁，凸台顶壁水平设置，凸台顶壁周圈下面密闭固定连接有凸台侧壁，凸台侧壁竖向设置，凸台侧壁下端与盖板板体密闭固定相连；凸台侧壁上刻有防爆痕。防爆痕水平开设。凸台侧壁的厚度小于所述凸台顶壁的厚度、也小于盖板板体的厚度。本实用新型为一体式结构，采用拉伸的方式使凸台成型，结构简单、易于加工。此种结构不设防爆孔，不会出现漏液，防爆痕的深度易于控制，与铆接或焊接防爆模的方式相比，防爆更加稳定。

Description

动力锂电池防爆盖板
技术领域
本实用新型涉及一种电池盖板，尤其涉及一种动力锂电池防爆盖板。
背景技术
目前，市场上使用的动力锂电池盖板的防爆结构是，先在盖板板体上打出中心定位台阶孔，然后在该台阶孔内焊接或铆压防爆膜，最后在防爆膜上打出防爆痕，此种结构加工复杂，容易出现漏液，防爆不稳定。
发明内容
本实用新型的目的是提供一种结构简单、使用效果好的动力锂电池防爆盖板。
为实现上述目的，本实用新型采用的技术方案为：
一种动力锂电池防爆盖板，包括盖板板体，盖板板体水平设置，其特征是：盖板板体向上冲压有凸台，凸台包括凸台顶壁，凸台顶壁水平设置，凸台顶壁周圈下面密闭固定连接有凸台侧壁，凸台侧壁竖向设置，凸台侧壁下端与盖板板体密闭固定相连；凸台侧壁上刻有防爆痕。防爆痕水平开设。凸台侧壁的厚度小于所述凸台顶壁的厚度、也小于盖板板体的厚度。
本实用新型为一体式结构，采用拉伸的方式使凸台成型，结构简单、易于加工。此种结构不设防爆孔，不会出现漏液，防爆痕的深度易于控制，与铆接或焊接防爆模的方式相比，防爆更加稳定。
附图说明
图1是本实用新型实的结构示意图。
附图中：
1、盖板板体； 2、凸台侧壁；3、凸台顶壁；4、防爆痕。
具体实施方式
下面结合附图和具体实施例对本实用新型作进一步描述：
一种动力锂电池防爆盖板，如图1所示，包括盖板板体1，盖板板体1水平设置，盖板板体1向上冲压有凸台，凸台包括凸台顶壁3，凸台顶壁3水平设置，凸台顶壁3周圈下面密闭固定连接有凸台侧壁2，凸台侧壁2竖向设置，凸台侧壁2下端与盖板板体1密闭固定相连；凸台侧壁2上刻有防爆痕4。在本实施例中，所述防爆痕4水平开设。所述凸台侧壁2的厚度小于所述凸台顶壁3的厚度、也小于所述盖板板体1的厚度。
在本实用新型中，盖板板体向上变薄拉伸出一个凸台，在凸台侧壁变薄的区域刻出具有一定深度的防爆痕。在一定压力下，带有防爆痕的凸台侧壁会首先破裂，因此能够起到电池防爆的作用。此防爆结构稳定易加工，工艺简单，生产成本低。
本实用新型为盖板一体式结构，易于成型，减少了制作步骤，降低了生产成本，不会出现漏液的现象，使防爆效果更稳定。

Claims (3)

1.一种动力锂电池防爆盖板，包括盖板板体（1），盖板板体（1）水平设置，其特征是：盖板板体（1）向上冲压有凸台，凸台包括凸台顶壁（3），凸台顶壁（3）水平设置，凸台顶壁（3）周圈下面密闭固定连接有凸台侧壁（2），凸台侧壁（2）竖向设置，凸台侧壁（2）下端与盖板板体（1）密闭固定相连；凸台侧壁（2）上刻有防爆痕（4）。
2.根据权利要求1所述的动力锂电池防爆盖板，其特征是：所述防爆痕（4）水平开设。
3.根据权利要求1或2所述的动力锂电池防爆盖板，其特征是：所述凸台侧壁（2）的厚度小于所述凸台顶壁（3）的厚度、也小于所述盖板板体（1）的厚度。
CN201320407535.1U 2013-07-10 2013-07-10 动力锂电池防爆盖板 Expired - Fee Related CN203386820U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103346273A (zh) * 2013-07-10 2013-10-09 倪志华 动力锂电池防爆盖板

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103346273A (zh) * 2013-07-10 2013-10-09 倪志华 动力锂电池防爆盖板

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