CN204067609U - 铜铝过渡设备线夹 - Google Patents
铜铝过渡设备线夹 Download PDFInfo
- Publication number
- CN204067609U CN204067609U CN201420417649.9U CN201420417649U CN204067609U CN 204067609 U CN204067609 U CN 204067609U CN 201420417649 U CN201420417649 U CN 201420417649U CN 204067609 U CN204067609 U CN 204067609U
- Authority
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- Prior art keywords
- copper
- aluminium
- allumen
- copper coin
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- -1 Copper-aluminium Chemical compound 0.000 title claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000010949 copper Substances 0.000 claims abstract description 54
- 229910052802 copper Inorganic materials 0.000 claims abstract description 54
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 39
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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Abstract
本实用新型公开了一种铜铝过渡设备线夹，包括通过螺栓连接的铝制线夹主体和铝制压板，所述主体和压板分别有同轴的反向弯曲的弧形部，两弧形部间形成放置铝绞线的置线孔，所述主体表面焊接有铜板，其特征在于：所述主体表面设有方形缺口，铜板嵌入缺口内，铜板与主体间焊接有锌铝合金板。锌铝合金的性能介于铝、铜之间，与铝和铜的焊接性能较强，因此在铝制线夹主体与铜板之间设置锌铝合金能够提供线夹整体的强度，同时，锌铝合金板的导电性能也接近黄铜，这样电流经铝制主体、锌铝合金板、铜板后导电过渡更加平顺，热膨胀均匀，线夹不易断裂。
Description
技术领域
[0001] 本实用新型涉及电力金具，特别涉及一种铜铝过渡设备线夹。
背景技术
[0002] 设备线夹用于母线下线与电气设备如变压器、断路器、互感器等的出线端子连接。现有常用的电气设备，其出线端子有铜质和铝质两类，而母线多为铝绞线或钢芯铝绞线，故设备线夹又分为铝设备线夹和铜铝过渡设备线夹两个系列。设备线夹与电气设备连接时，由于许多设备出线端均为铜板，铝设备线夹与铜端子连接会出现两种电位差不同的金属电气过渡，在运行中易产生电化腐蚀，因此使用铜铝设备过渡线夹可以有效避免电化腐蚀。现有铜铝过渡设备线夹是将铜板焊接在铝基板上，从而实现铝母线与电气设备有效连接，存在的问题是产品易断裂，其原因是:1、由于铜、铝两种金属材料物理化学性能不同，焊接性能差，焊接强度低，易断裂；2、铝的机械强度低于铜，线夹在使用过程中易产生物理断裂；
3、铝和铜的膨胀系数不同，在高温作用下，内部受力不均导致断裂。
[0003] 针对上述之不足，有必要研究一种使连接强度高、不易断裂的铜铝过渡设备线夹。
实用新型内容
[0004] 有鉴于此，本实用新型要解决的技术问题在于提供一种铜铝过渡设备线夹，。
[0005] 本实用新型的铜铝过渡设备线夹，包括通过螺栓连接的铝制线夹主体和铝制压板，所述主体和压板分别有同轴的反向弯曲的弧形部，两弧形部间形成放置铝绞线的置线孔，所述主体表面焊接有铜板，其特征在于:所述主体表面设有方形缺口，铜板嵌入缺口内，铜板与主体间焊接有锌铝合金板。
[0006] 进一步，所述铜板、锌铝合金板和主体间通过销钉联接。
[0007] 进一步，所述铜板上设有使铜端子卡入的凹槽，所述凹槽两侧扭接有将铜端子压紧的人字形铜卡片。
[0008] 本实用新型的有益效果:本实用新型的铜铝过渡设备线夹，包括通过螺栓连接的铝制线夹主体和铝制压板，所述主体和压板分别有同轴的反向弯曲的弧形部，两弧形部间形成放置铝绞线的置线孔，所述主体表面焊接有铜板，其特征在于:所述主体表面设有方形缺口，铜板嵌入缺口内，铜板与主体间焊接有锌铝合金板。锌铝合金的性能介于铝、铜之间，与铝和铜的焊接性能较强，因此在铝制线夹主体与铜板之间设置锌铝合金能够提供线夹整体的强度，同时，锌铝合金板的导电性能也接近黄铜，这样电流经铝制主体、锌铝合金板、铜板后导电过渡更加平顺，热膨胀均匀，线夹不易断裂。
附图说明
[0009] 下面结合附图和实施例对本实用新型作进一步描述。
[0010] 图1为本实用新型的主视示意图；
[0011] 图2为本实用新型的左视示意图；
[0012] 图3为主体与压板的位置示意图。
具体实施方式
[0013] 以下将结合附图对本实用新型进行详细说明，如图所示:本实施例的铜铝过渡设备线夹，包括通过螺栓I连接的铝制线夹主体2和铝制压板3，所述主体2和压板3分别有同轴的反向弯曲的弧形部21、31，两弧形部21、31间形成放置铝绞线的置线孔4，所述主体2表面焊接有铜板5，所述主体2表面设有方形缺口，铜板5嵌入缺口内，铜板5与主体间焊接有锌铝合金板6。锌铝合金的性能介于铝、铜之间，与铝和铜的焊接性能较强，因此在铝制线夹主体2与铜板5之间设置锌铝合金能够提供线夹整体的强度，同时，锌铝合金板的导电性能也接近黄铜，这样电流经铝制主体、锌铝合金板、铜板后导电过渡更加平顺，热膨胀均匀，线夹不易断裂。
[0014] 作为上述技术方案的进一步改进，所述铜板5、锌铝合金板6和主体2间通过销钉7联接，连接强度更大。
[0015] 作为上述技术方案的进一步改进，所述铜板5上设有使铜端子卡入的凹槽51，所述凹槽51两侧扭接有将铜端子压紧的人字形铜卡片8，由于使用锌铝合金板使得可以在铝制线夹主体上焊接更厚的铜板，只有一定厚度的铜板上才能开放置电气设备铜端子的凹槽51,铜端子置于凹槽51内，通过卡片8压紧，线夹与电气设备连接更紧固。
[0016] 最后说明的是，以上实施例仅用以说明本实用新型的技术方案而非限制，尽管参照较佳实施例对本实用新型进行了详细说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本实用新型技术方案的宗旨和范围，其均应涵盖在本实用新型的权利要求范围当中。
Claims (3)
1.一种铜铝过渡设备线夹，包括通过螺栓(I)连接的铝制线夹主体(2)和铝制压板(3)，所述主体(2)和压板(3)分别有同轴的反向弯曲的弧形部(21、31)，两弧形部(21、31)间形成放置铝绞线的置线孔(4)，所述主体(2)表面焊接有铜板(5)，其特征在于:所述主体(2)表面设有方形缺口，铜板(5)嵌入缺口内，铜板(5)与主体间焊接有锌铝合金板(6)。
2.根据权利要求1所述的铜铝过渡设备线夹，其特征在于:所述铜板(5)、锌铝合金板(6)和主体(2)间通过销钉(7)联接。
3.根据权利要求2所述的铜铝过渡设备线夹，其特征在于:所述铜板(5)上设有使铜端子卡入的凹槽(51)，所述凹槽(51)两侧扭接有将铜端子压紧的人字形铜卡片(8)。
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