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摘要：
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电力机柜制造中，铜排连接一般采用螺钉连接，但其占用空间大而影响足够的电气间隙，在紧凑型机柜结构的限制下，结构设计困难，还会产生潜在的尖端放电，破坏空气绝缘水平。为解决此问题，研究出以铜排连接新工艺代替螺钉连接，包括无钉铆接和有钉铆接。分析了铆接的原理和成形工艺过程，同时，用ANSYS Workbench软件施以力学仿真以核对一致性。随后检测了连接后的振动、温升和电阻效果，并与传统螺钉连接工艺对比以验证其可行性。此外，建立了2种铜排搭接处电场的有限元分析模型，获得了电场分布特征及电场集中区域，这进一步显示了铆钉连接的价值。最后，总结了铆接工艺的优势及适用范围，为产品设计和工艺改进提供更多的技术方案。
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The bus-bars are usually connected by bolts in the manufacturing of electric power switchgear, but the space is occupied too much by bolts to get adequate electrical gap, so it not only makes the design of structure difficult due to the limit of compact switchgear construction, but also the tip discharge is produced potentially to destroy the air insulation level. To solve this problem, a new connection technology for bus-bar was proposed to replace screw connection including riveting without pin and riveting with pin, and the riveting principle and forming process were researched. Meanwhile, the mechanics simulation was conducted by software ANASYS Workbench to check the consistency. Then, the effects of vibration, temperature rising and resistance were tested after connection, and its feasibility was verified by comparing with the traditional screw connection process. In addition, two finite element analysis models of electric field in the connection scope of bus-bars were set up to obtain the distribution characteristic and the concentrated area of electric field, which further showed its value of riveting. Finally, the advantages and application range of riveting technology were summarized, which provided more technical proposals for product design and process improvement.
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基金项目：
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2018年度博瑞公司工艺攻关（GG18018）
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作者简介：
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何峋（1973-），男，学士，高级工程师，E-mail：hex_br@nrec.com
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参考文献：
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[1]GB/T 5585.1—2018，电工用铜、铝及其合金母线第1部分：铜和铜合金母线[S].
GB/T 5585.1—2018，Copper or aluminium and its alloy bus bars for electrical purposes—Part 1: Copper and copper alloy bus bars [S].
[2]吴楠，庄劲武，江壮贤，等. 螺栓紧固铜排间接触电阻研究[J]. 海军工程大学学报，2016，28(6)：27-30.
Wu N，Zhuang J W，Jiang Z X, et al. Contact resistance between bolt fastening copper platoons[J]. Journal of Naval University of Engineering，2016，28(6)：27-30.
[3]IEC 60335—1， Household and similar electrical appliances—Safety—Part 1: General requirements [S].
[4]单晖. 35 kV开关柜放电原因分析及整治措施[J]. 电工技术，2017，5(A)：127-128,135.
Shan H. Analysis and deal with the cause of electro-discharge for 35 kV switchgear[J]. Electric Engineering，2017，5(A)：127-128,135.
[5]贾勇勇，杨景刚，高山，等. 高压开关柜内部电场仿真及其影响因素分析[J]. 高压电器，2017，53(6)：154-160,166.
Jia Y Y，Yang J G，Gao S，et al. Simulation of internal electric field of high-voltage metal-enclosed switchgear and influencing factors[J]. High Voltage Apparatus，2017，53(6)：154-160,166.
[6]邓明，罗静，孙立刚. 管件径向局部成型技术[J]. 重庆工学院学报，2000，14（5）：17-20.
Deng M，Luo J，Sun L G. Radial local forming techniques of pipe fittings[J]. Journal of Chongqing Institute of Technology，2000，14（5）：17-20.
[7]张洪双. 铆接工艺参数分析[J]. 机械设计与制造，2011，（6）：241-243.
Zhang H S. Analysis on riveting process parameters[J]. Machinery Design & Manufacture，2011，（6）：241-243.
[8]许瑛，赵宇， 聂媛，等. 自动铆接过程中铆钉变形的有限元分析 [J]. 机械设计，2011，28（7）：73-75.
Xu Y，Zhao Y，Nie Y，et al. Finite element analysis of rivet deformation during automatic riveting [J]. Journal of Machine Design，2011，28（7）：73-75.
[9]韩来福. 扩口、缩口复合成型工艺研究与应用[J]. 新技术新工艺，2011，（11）：94-96.
Han L F. Research and application of the diminished and expanded orifice composite shaping[J]. New Technology & New Process，2011，（11）：94-96.
[10]成大先. 机械设计手册[M]. 北京：化学工业出版社，2004.
Cheng D X. Mechanical Design Manual [M]. Beijing：Chemical Industrial Press，2004.
[11]GB/T 50149—2010，电气装置安装工程母线装置施工及验收规范[S].
GB/T 50149—2010，Code for construction and acceptance of bus bar installation of electric equipment installation engineering[S].
[12]王跃臻，王延欣，陶阿嵘. 不锈钢进气管扩口工艺设计[J]. 锻压装备与制造技术，2016，51(6)：84-86.
Wang Y Z，Wang Y X，Tao A R. Process design of air inlet pipe diffuser of stainless steel[J]. China Metalforming Equipment & Manufacturing Technology，2016，51(6)：84-86.
[13]GB/T 4857.23—2000，包装 运输包装件随机振动试验方法[S].
GB/T 4857.23—2000, Packaging—Transport packages—Random vibration test method[S].
[14]GB/T 16935.1—2008,低压系统内设备的绝缘配第1部分：原理、要求和试验[S].
GB/T 16935.1—2008, Insulation coordination for equipment within low-voltage systems—Part 1: Principles, requirements and tests [S].
[15]许超，尚荣艳，艾春，等. 高压开关柜内部气隙放电模型及其电场分析[J]. 华侨大学学报: 自然科学版，2018，36(6)：913-919.
Xu C，Shang R Y，Ai C，et al. Air-gap discharge model and electric field analysis of high-voltage switchgear[J]. Journal of Huaqiao University: Natural Science，2018，36(6)：913-919.
[16]王琪，李秋香，王晓健，等. 开关柜放电原因分析与治理[J]. 山东电力技术，2014，41(3)：40-43.
Wang Q，Li Q X，Wang X J，et al. Cause analysis and treatment of switchgear discharge[J]. Shandong Electric Power，2014，41(3)：40-43.
[17]国家电网公司运维检修部. 12千伏手车式开关柜标准化设计定制方案[M]. 北京：中国电力科学研究院，2017.
State Grid Corporation of China. Custom Design Scheme for 12 kV Manual Cart Switch Cabinet Standardization[M]. Beijing：China Electric Power Research Institute，2017.
[18]吕思洲. 一种铜排连接用保护装置[P]. 中国：CN201810550299.6，2018-08-14.
Lyu S Z. A kind of protection device for bus-bar joint [P]. China：CN201810550299.6，2018-08-14.
[19]黄志新， 刘成柱. ANSYS Workbench 14.0超级学习手册[M]. 北京：人民邮电出版社，2013.
Huang Z X，Liu C Z. ANSYS Workbench 14.0 Supper Manual[M]. Beijing：Post & Telecom Press，2013.
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