能源的转化、储存和传输基本上是以电能传送，电能以电缆及连接装置作为载体从能源采集器、储存器传送至电气设备。
面临全球化石燃料的短缺，煤炭、石油和天然气价格大幅飙升，考虑到新的经济现实，各国政府都在新能源领域加大了投资力度。
导致能源采集器、储存器和电气设备的设计和应用日新月异，大功率、移动式、野外式的电气设备通常要考虑连接装置的功率大小，插拔次数，安装尺寸，防水防尘，屏蔽性能，快速插拔，电流连续性等特殊要求。
基于连接器行业对大电流连接器的要求越来越高，一种新型的双向螺旋弹簧触指结构，构成多个列式形变接触点（达160个点以上）。
可以满足超过十万次的插拔使用寿命，弹簧触指电流密度和温升接近于传输电缆，插拔力15N左右。
PCB板连接器（板到板，板到线），圆柱形快速插拔自锁连接器（塑胶和金属外壳），公母同体重载连接器，电动汽车充电器，高压动力电池包串联连接器，应用于最先进的大电流能源采集器、能源储存器及电气设备，例如：电动汽车、充电基站、风能发电机、电源供应器、高铁、重卡。
大电流连接器High Current Connecter电流 Current 1.0 – 7000 A适用标准插针 mated Normal Pin：0.76mm,1.00mm,1.42mm,1.58mm2.38mm,3.60mm,5.70mm,6.00mm8.00mm,10.0mm,12.0mm,14.0mm16.0mm,18.0mm,20.0mm,22.0mm24.0mm,26.0mm,28.0mm,30.0mmEnergy conversion, storage, and transmission is largelybased on electricity transmission, electricity cables andconnecting devices as a carrier of energy acquisition,storage is sent to the electrical equipment.Facing a global shortage of fossil fuels, coal, oil andnatural gas prices have soared, taking into account thenew economic realities, governments have increasedinvestment in new energy field. Result in energyacquisition, storage, and electrical equipment design andapplication of the rapid, high-power, portable, outdoorelectrical equipment is usually to consider the size of theconnected device‘s power, mating cycles, installation size,waterproof and dustproof, shielding performance, quickplug, the current continuity, and other special requirements.One new structure product increasingly high demandfor high-current connector, the spring has developed anew type of Bidirectional spiral spring finger touch),constitute more than one column deformation point ofcontact (up to 160 points or more). More than 100,000times to meet the plug life, spring touch to the currentdensity and temperature close to the transmission cable,the insertion force of about 15N.PCB board connector (board to board, board-to-line),the cylindrical plug quick lock connector (plastic and metalcasing), male and female connector set out with the weight,the electric car charger, high voltage powerthe batterypacks connected in series, used in the most advancedhigh-current energy collector, energy storage andelectrical equipment, such as: electric car charging basestation, wind generators, power supplies, high-speed rail,heavy truck.目录Content第一部分Section I1. 电流传输的连接理论Current connection to the transmission theory2. 连接器应用的关键技术Connect the key technology of the device applications3. 连接器的最佳工作状态Connector in top working condition第二部分Section II1. 双向螺旋弹簧触指的设计原理Refers to the design principles of bidirectional spiral spring finger 2. 插孔的几种结构对比Socket several structure comparison3. 应用领域Applications第三部分Section III1. 主要技术参数The main technical parameters2. 使用材料Use of materials3. 插孔系列及选型说明Socket series and selection instructions3.1 焊接或螺纹接电源插孔Welding or thread power Socket3.2 压接电源插孔Crimp power Socket3.3 外部螺纹接电源插孔External thread power Socket3.4 通孔插针Through hole Socket3.5 焊接或螺纹接电源插针Welded or thread power Pin3.6 压接电源插针Crimp power pin3.7 电动汽车充电连接装置插孔EV connection device Socket3.7.1 电动汽车充电连接装置 SAE J1772 5芯电源端子插孔EV J1772 5pin charger connecting device Socket3.7.2 电动汽车充电连接装置 GB / AC 7芯电源端子EV GB / AC 7pin charger connecting device Socket3.7.3 电动汽车充电连接装置 GB / DC 9芯电源端子EV GB / DC 9pin charger connecting device Socket4. 负载电流和温升Load current and temperature rise第一部分Section I1 电流传输的连接理论Connecting theory of Current transmission插针Pin插孔 Socket触指 Touching-Finger 连接器通常由插针、插孔本体、触指、绝缘体、屏蔽壳和锁定装置构成。
本产品目录中着重介绍的双向螺旋弹簧触指连接器，仅为单个插针、触指和插孔本体的连接技术（图1）。
The connectors usually have Pin , Socket, Touching-Finger, Insulators, Shielding Shell and Locking Devices. This catalog focuses on the Bidirectional Spiral Spring Finger refers to the connector, only a single pin, the Finger and Jack connection technology (Figure 1). 连接器产品重要机械参数Important mechanical parameters of connector products ： • 插扒力Insertion and Withdrawal Force • 插拔次数Cycles连接器产品重要电气参数：Important electrical parameters of connector products: 接触阻抗Contact Resistance负载电流Loading Current电流密度Current Density 温升Temperature Rise这些参数之间相互影响，插拔力大，插拔次数少，接触阻抗低，温升低，负载电流大。
当插针插入带有触指的插孔，触指在插针和插孔间形成电接触，电源加在二端，就有电流通过。
The interactions between these parameters, the insertion force, mating cycles, low contact resistance, low temperature rise, load current. The formation of electrical contact between the pin and jack pin inserted with a finger , the touch, power supply and two side, there is current through.+-U2 连接器应用的关键技术 The key technology of the connecting applications 插拔力和插拔次数插针插入插孔时，触指受到插针径向压力而发生弹性形变产生正压力f, 插针和触指之间摩擦接触，摩擦系数为ų,插拔力为F,F = ų f 较好的正压力f 能获得较小的接触面阻抗R T , 同时增大了插拔力F 和触指的应力，随着插拔次数的增加而导致触指屈服疲劳，正压力减小，表面摩损，接触阻抗将急剧上升，温升增加，电能会以热能的形式消散功率，导体因过热而被熔化或发生燃烧，使绝缘材料遭到损坏。