CN106229561A - 铅酸蓄电池内置双缓冲热封结构 - Google Patents
铅酸蓄电池内置双缓冲热封结构 Download PDFInfo
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Abstract
本发明公开了一种铅酸蓄电池内置双缓冲热封结构,该结构设在盖与壳体结合处。所述盖与壳体的结合面采用交叉组合连接结构,即盖的结合面设有内凹外凸的双台肩,其中内凹台肩平面上设有两道凹槽。壳体的结合面设有内凸外凹的双台肩,其中内凸台肩平面上设有一道凹槽,该凹槽与盖的内凹台肩平面上内道凹槽配对组成一道内缓冲槽,内缓冲槽两侧平面结合构成双热封面。所述壳体外凹台肩宽度比盖的外凸台肩宽,配合时内置间隙形成一道外缓冲槽。本发明中盖的外凸台肩为薄壁结构,富有弹性,遭到外力冲击和内应力影响时起到缓冲作用,再加上内置双缓冲槽的缓冲作用,使得热封面保持完好状态,可避免发生内置电解液外泄事故和电池过早失效。
Description
技术领域
本发明涉及一种铅酸蓄电池,具体地讲,本发明涉及一种铅酸蓄电池内置双缓冲热封结构。
背景技术
铅酸蓄电池制成后,必须在壳体与盖对接处采用热封连接,其密封质量直接影响铅酸蓄电池的性能。铅酸蓄电池制造商为了提高壳体与盖对接处的热封质量,除在对接处预留足够大的热封面外,还设单只缓冲槽,此种结构具有一定柔性,能够有效减缓内应力和外部冲击力对热封结构的破坏,从而达到保护热封结构的密封质量。可是,现有技术的单缓冲热封结构仅有一道热封面,抗外力冲击能力十分有限,一旦唯一的热封面开裂便造成铅酸蓄电池的损坏。现实中,铅酸蓄电池的主要失效形式就是热封结构损坏,外溢的电解液除污染所在环境外,最大的问题腐蚀周边的设备,由此造成更大的损失。
发明内容
本发明主要针对现有技术的热封结构抗外力冲击能力不足的问题,提出一种热封结构相对简单、柔性足、缓冲效果好、密封严且抗外力冲击能力强的铅酸蓄电池内置双缓冲热封结构。
本发明通过下述技术方案实现技术目标。
铅酸蓄电池内置双缓冲热封结构,该结构设在盖与壳体结合处。其改进之处在于:所述盖与壳体的结合面采用交叉组合连接结构,即盖的结合面设有内凹外凸的双台肩,其中内凹台肩平面上设有两道平行相间的凹槽。壳体的结合面设有内凸外凹的双台肩,其中内凸台肩平面上设有一道凹槽,该凹槽与盖的内凹台肩平面上内道凹槽配对组成一道内缓冲槽,内缓冲槽两侧平面结合构成双热封面。所述壳体外凹台肩宽度比盖的外凸台肩宽5.0~10.0mm,配合时内置间隙形成一道外缓冲槽。
上述结构中,所述盖的内凹台肩上两道凹槽深度为15~25mm,壳体内凸台肩的凹槽深度是盖配对凹槽深度的2~4倍。
上述结构中,所述盖的外凸台肩是3.0~5.0mm厚的薄壁,其外壁与配套的壳体外壁齐平。
本发明与现有技术相比,具有以下积极效果:
1、由双缓冲槽组成的热封结构较为简单,制作容易;
2、内道缓冲槽两侧各有一道热封面,双道密封结构强化密封效果显著;
3、盖的外凸台肩处为薄壁结构,富有弹性,遭到外力冲击和内应力影响时起到缓冲作用,再加上内置双缓冲槽的缓冲作用,使得热封面保持完好状态,可避免发生内置电解液外泄事故和电池过早失效。
附图说明
图1是本发明局部结构剖面示意图。
具体实施方式
下面根据附图并结合实施例,对本发明作进一步说明。
图1所示的铅酸蓄电池内置双缓冲热封结构,该结构设在盖1与壳体2相结合的平面上。所述盖1与壳体2的结合面采用配对交叉组合的连接结构,即盖1的结合面设有内凹外凸的双台肩,其中内凹台肩平面上设有两道平行相间的凹槽。配套的壳体2结合面设有内凸外凹的双台肩,其中内凸台肩平面上设有一道凹槽,该凹槽与盖1的内凹台肩平面上内道凹槽配对组成一道内缓冲槽3,内缓冲槽3两侧平面相贴合构成双热封面。所述壳体2外凹台肩宽度比盖1的外凸台肩宽些,具体宽多少根据规格大小而定,因规格大则壳休2壁厚相应厚些,所以取较大宽度值,反之则取较小宽度值。本实施例为50Ah的铅酸蓄电池,该规格相对较小,故所述壳体2外凹台肩宽度仅比盖1的外凸肩宽5.0mm,当盖1与壳体2外壁齐平配合时,内部因厚度差形成的间隙实为一道外缓冲槽4。本实施例因规格小,盖1内凹台肩平面上的两只凹槽深15mm,壳体2内凸台肩平面上的内凹槽深为30mm,由此配对成的双缓冲热封结构富有足够的弹性变形能力,能够承受一定的外力冲击或内应力。另外,内置双道热封面结构在双缓冲槽的作用下保护双热封面不损坏。本发明中盖1的外凸台肩是薄壁结构,此实施例仅厚3.0mm。盖1的材质为塑料或橡胶,富有弹性,一旦盖1遭受外力冲击,首先由盖1的外凸台肩弹性变形而吸收冲击力,从而起到缓冲作用,免得热封面直接受冲击,确保内置电解液不外泄。
Claims (3)
1.一种铅酸蓄电池内置双缓冲热封结构,该结构设在盖(1)与壳体(2)结合处;其特征在于:所述盖(1)与壳体(2)的结合面采用交叉组合连接结构,即盖(1)的结合面设有内凹外凸的双台肩,其中内凹台肩平面上设有两道平行相间的凹槽;壳体(2)的结合面设有内凸外凹的双台肩,其中内凸台肩平面上设有一道凹槽,该凹槽与盖(1)的内凹台肩平面上内道凹槽配对组成一道内缓冲槽(3),内缓冲槽(3)两侧平面结合构成双热封面;所述壳体(2)外凹台肩宽度比盖(1)的外凸台肩宽5.0~10.0mm,配合时内置间隙形成一道外缓冲槽(4)。
2.根据权利要求1所述的铅酸蓄电池内置双缓冲热封结构,其特征在于:所述盖(1)的内凹台肩上两道凹槽深度为15~25mm,壳体(2)内凸台肩的凹槽深度是盖(1)配对凹槽深度的2~4倍。
3.根据权利要求1所述的铅酸蓄电池内置双缓冲热封结构,其特征在于:所述盖(1)的外凸台肩是3.0~5.0mm厚的薄壁,其外壁与配套的壳体(2)外壁齐平。
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CN109340500B (zh) * | 2018-11-22 | 2024-07-05 | 珠海格力电器股份有限公司 | 一种减震圈及空调管路 |
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