CN115173002B - 一种热电池用异形导流柱与电池盖 - Google Patents

一种热电池用异形导流柱与电池盖 Download PDF

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CN115173002B
CN115173002B CN202210934233.3A CN202210934233A CN115173002B CN 115173002 B CN115173002 B CN 115173002B CN 202210934233 A CN202210934233 A CN 202210934233A CN 115173002 B CN115173002 B CN 115173002B
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朱艳芳
席小练
张毅
赵彦龙
李佳凤
郭娇
李隆基
李岩
王妮
高文艳
王润鑫
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Xi'an North Qinghua Electromechanical Co ltd
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Abstract

本发明提出一种热电池用异形导流柱与电池盖，该导流柱的主体为圆柱体结构，在圆柱体的顶部边缘设置有圆环结构。本发明的导流柱与金属连接线焊接时，能够物理阻隔锡焊残渣，杜绝导流柱与盖板之间、导流柱之间绝缘性变差及导通，为热电池可靠工作提供保障；将柔性电路板对插在导流柱上时，柔性电路板与异形导流柱上圆盘接触，柔性电路板与电池盖保持不小于1mm距离，在锡焊焊接时，熔融的焊锡通过柔性电路板的孔渗入到导流柱圆盘上，能够避免各导流柱之间短路，有利于热电池可靠工作；能够固定焊线位置和线路板与盖体表面之间的距离，确保电池盖表面的热量不会直接传递至线路板上，不会影响线路板的性能；操作简便，成本低廉。

Description

一种热电池用异形导流柱与电池盖
技术领域
本发明属于火工品及电源技术领域，具体涉及一种具有异形结构的热电池用导流柱与电池盖。
背景技术
导流柱是热电池输入及输出能量的重要渠道，目前热电池制造时，圆柱型导流柱与盖板通过玻璃烧结加工成热电池所需电池盖，热电池通过电池盖上的导流柱输入能量激活电点火头，电点火头发火后点燃热电池内部的引燃元件及加热元件，继而热电池开始工作，电堆引流条与电池盖内侧导流柱上引流条通过金属卡扣连接，输出电性能，盖体外侧导流柱与外界用电***连接后，供电给用电***。目前，导流柱形状以圆柱形居多，导流柱与用电***的连接方式为绝缘安装线与圆柱锡焊连接，或采用柔性电路板与圆柱锡焊连接。
现有导流柱主要存在以下弊端：
1.导流柱与盖板通过玻璃环(绝缘材料)进行绝缘，玻璃环的宽度为0.75～1.75mm。导流柱通过锡焊焊接与绝缘安装线连接，在锡焊焊接过程中，焊锡中的助焊剂残渣可能落于盖板与玻璃环上，由于残渣导电，导致导流柱与盖板之间、导流柱之间的绝缘性变差甚至导通，导致热电池在性能试验时产生电噪音甚至失效。
2.柔性电路板与导流柱连接时，是将柔性电路板对应孔插于导流柱中，柔性电路板中导体与导流柱连接导通，然后通过锡焊将其固定，柔性电路板直接与电池盖表面接触，在焊接过程中熔融的焊锡通过柔性电路板的孔渗入电池盖和玻璃环上，导致导流柱之间短路，热电池产生电噪音甚至失效。
3.导流柱与绝缘安装线焊接时，由于焊接位置无法固定，绝缘安装线可能距离盖体表面距离较近，造成绝缘安装线与盖体之间导通；导流柱与柔性电路板连接时，由于无法准确固定，柔性电路板直接接触盖体表面或直接通过多层云母隔离，由于热电池作用过程中要产生热量，盖板表面温度达到150℃左右，容易对柔性电路板造成损伤。
发明内容
(一)要解决的技术问题
本发明提出一种热电池用异形导流柱与电池盖，以解决如何保证热电池焊接处的绝缘电阻，固定焊线位置，减小热电池工作过程中盖板表面热量对焊点影响，提高工作可靠性的技术问题。
(二)技术方案
为了解决上述技术问题，本发明提出一种热电池用异形导流柱，该导流柱的主体为圆柱体结构，在圆柱体的顶部边缘设置有圆环结构。
进一步地，导流柱由铁镍钴玻封合金丝经机械加工而成。
进一步地，圆环结构与圆柱体结构采用一体加工而成。
此外，本发明还提出一种热电池用电池盖，该电池盖由导流柱、盖板与玻璃环经烧结而成；其中导流柱采用上述的导流柱。
进一步地，导流柱***盖板，并且通过玻璃环与盖板进行绝缘。
进一步地，导流柱位于盖板内侧的引流条连接部分为圆柱状，导流柱上的圆环位于盖板外侧。
进一步地，圆环距离盖板的距离不小于1mm。
进一步地，圆环的外径大于玻璃环的外径。
(三)有益效果
本发明提出一种热电池用异形导流柱与电池盖，该导流柱的主体为圆柱体结构，在圆柱体的顶部边缘设置有圆环结构，导流柱位于盖板内侧的引流条连接部分为圆柱状，导流柱上的圆环位于盖板外侧。异形导流柱***盖板，并且通过玻璃环与盖板进行绝缘。
本发明的有益效果具体包括：
1.导流柱与金属连接线焊接时，能够物理阻隔锡焊残渣，杜绝导流柱与盖板之间、导流柱之间绝缘性变差及导通，为热电池可靠工作提供保障。
2.将柔性电路板对插在导流柱上时，柔性电路板与异形导流柱上圆盘接触，柔性电路板与电池盖保持不小于1mm距离，在锡焊焊接时，熔融的焊锡通过柔性电路板的孔渗入到导流柱圆盘上，能够避免各导流柱之间短路，有利于热电池可靠工作。
3.能够固定焊线位置和线路板与盖体表面之间的距离，确保电池盖表面的热量不会直接传递至线路板上，不会影响线路板的性能。
4.操作简便，成本低廉。
附图说明
图1为本发明实施例的热电池用导流柱结构示意图；
图2a为使用本发明实施例的热电池用导流柱的电池盖主视图，图2b为电池盖俯视图。
具体实施方式
为使本发明的目的、内容和优点更加清楚，下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。
本实施例提出一种热电池用异形导流柱，其结构如图1所示。该异形导流柱由铁镍钴玻封合金丝经机械加工而成，直径为1.5mm，总长度约为9.5mm，在距离顶部边缘3mm处设置有外径约为4mm的圆环，该圆环套于导流柱上且与导流柱采用一体加工而成。
安装上述导流柱的电池盖由异形导流柱1、盖板2与玻璃环3经烧结而成，其结构如图2所示。该电池盖外径为54mm，其上安装有4根导流柱1，D、D为输入端，+、-为输出端。异形导流柱1***盖板2，并且通过玻璃环3与盖板2进行绝缘。异形导流柱1的位于盖板2内侧的引流条连接部分仍保持圆柱状，导流柱通过引流条与电堆连接。异形导流柱1上的圆环位于盖板2的外侧，外侧由导流柱通过绝缘安装线或柔性电路板与用电***连接，实现热电池供电功能。
当异形导流柱1的高度及玻璃环3宽度发生变化时，可根据与用电***连接高度与玻璃环3的直径，调整圆环距导流柱顶部边缘距离及圆环直径，保持圆环距盖板2的距离不小于1mm，保证圆环外径大于玻璃环3的外径。
使用本发明的异形导流柱的热电池，在与柔性电路板连接后各导流柱与盖板以及各导流柱之间，绝缘电阻均大于200MΩ(DC500V)，激活后监测电压-时间曲线，曲线光滑平稳，无噪音。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应视为本发明的保护范围。

Claims (2)

1.一种热电池用异形导流柱，其特征在于，所述导流柱的主体为圆柱体结构，在圆柱体的顶部边缘设置有圆环结构；其中，所述导流柱由铁镍钴玻封合金丝经机械加工而成，直径为1.5mm，总长度为9.5mm，在距离顶部边缘3mm处设置有外径约为4mm的圆环，所述圆环套于导流柱上且与导流柱采用一体加工而成。
2.一种热电池用电池盖，其特征在于，所述电池盖由导流柱、盖板与玻璃环经烧结而成；其中所述导流柱采用权利要求1所述的导流柱；所述导流柱***盖板，并且通过玻璃环与盖板进行绝缘；所述导流柱位于盖板内侧的引流条连接部分为圆柱状，导流柱上的圆环位于盖板外侧；所述圆环距离盖板的距离不小于1mm；所述圆环的外径大于玻璃环的外径。
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热电池可靠性的设计和评估;侯虹, 张春晓;航空兵器;20010228(第02期);第22-25页 *

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