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电池接触弹簧系列02 | BQUQ定制精密弹簧

本系列的核心优势:可计算的接触力 电池接触弹簧系列02是一组定制压缩弹簧和片簧,专为手持设备、电动工具和汽车电子中的电池端子设计。每个弹簧的外径和自由长度公差为±0.01 mm,在完全压缩状态下最大跳动量为0.05 mm。我们保证在工作挠度范围内接触力稳定在0.8 N至5.0 N之间,每批次均通过3点负载测试验证。该系列在东莞工厂(拥有20年历史)制造,原型产品7个工作日发货,量产产品15个工作日


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本系列的核心优势:可计算的接触力

电池接触弹簧系列02是一组定制压缩弹簧和片簧,专为手持设备、电动工具和汽车电子中的电池端子设计。每个弹簧的外径和自由长度公差为±0.01 mm,在完全压缩状态下最大跳动量为0.05 mm。我们保证在工作挠度范围内接触力稳定在0.8 N至5.0 N之间,每批次均通过3点负载测试验证。该系列在东莞工厂(拥有20年历史)制造,原型产品7个工作日发货,量产产品15个工作日发货。无起订量要求——50件或50,000件均可订购。

电池接触失效的原因及我们的解决方案

大多数电池接触失效源于两个因素:材料疲劳和回弹不一致。标准弹簧在10,000次循环后接触力损失10-15%。我们通过使用琴钢丝(ASTM A228)或不锈钢301(1.4310),在成型后于260°C下进行30分钟去应力处理来应对这一问题。我们的弹簧在100,000次循环后力值保持在±5%以内,并通过压缩疲劳试验机测试验证。针对潮湿环境下的抗氧化需求,我们可根据要求提供镀金(0.5-1.0 µm)或镀镍(3-5 µm)处理。最终得到的是在产品整个使用寿命内保持形状和导电性的弹簧。

电池接触弹簧使用的材料与热处理工艺

我们为电池接触弹簧专门备有四种原材料:直径0.5 mm至2.0 mm的琴钢丝(硬度45-50 HRC)、0.3 mm至1.5 mm的不锈钢301硬态(42-48 HRC)、用于高导电性的铍铜C17200(38-44 HRC)以及用于低成本方案的磷青铜C5210(35-40 HRC)。热处理根据合金类型定制:琴钢丝在260°C下进行低温去应力处理,不锈钢在400°C下处理20分钟,铍铜则先在790°C下进行固溶退火,再在315°C下进行2小时的沉淀硬化处理。即使在180°弯曲半径下,也能实现可预测的弹性变形且无开裂。

规格参数 数值
线径范围 0.3 mm – 2.0 mm
自由长度范围 2 mm – 60 mm
外径公差 ±0.01 mm
自由长度公差 ±0.05 mm
完全压缩下最大跳动量 0.05 mm
硬度范围 35 – 50 HRC(视材料而定)
表面粗糙度(Ra) 0.4 µm(抛光),0.8 µm(成型态)
接触力范围 0.8 N – 5.0 N(30%挠度时)
交货期(原型/量产) 7 / 15个工作日
起订量 无最低要求(1件起订)

每次发货前的检验:负载曲线与表面扫描

电池接触弹簧系列02的每一批次均通过分辨率为0.001 mm的CNC光学比较仪进行100%尺寸检查。同时,我们对每批次的10%进行5点负载测试,使用数字测力计记录工作挠度20%、40%、60%、80%和100%处的负载值。表面缺陷(如凹坑、划痕或毛刺)由视觉系统在200倍放大下进行360°扫描识别。每份订单随附测试报告——您获得的是原始数据,而非简单的合格证书。如果您的应用需要特定的力曲线,请将目标值发送给我们,我们将在生产前调整线圈数量或线径。

电池接触弹簧的设计要求:我们需要您提供的信息

为了在12小时内为您提供准确报价,请提供四个参数:线径、外径(或内径)、自由长度以及指定挠度下所需的接触力。如果您有图纸,即使是手绘草图,我们也可以据此工作。对于锥端或双锥形等定制形状,请告知端部样式和支撑面——建议电池接触弹簧采用平端磨削,以避免刮伤电芯。我们还需要工作温度范围(标准为-40°C至+120°C)以及是否需要电镀。如果您对材料选择不确定,我们的工程师将根据您的电流消耗和循环寿命要求推荐合适的材料。请参阅我们的CNC刀具选择指南获取材料兼容性建议。

无起订量为何适用于原型和小批量试产

大多数弹簧工厂要求5,000件起订,因为换模成本高昂。我们采用配备伺服电机和快换夹头的CNC卷簧机,单件与1,000件的设置时间相同。因此,我们接受1件起订。对于100件的小批量试产,您需支付25美元的少量设置费,若在60天内后续订购1,000件以上,该费用将予以免除。这样您可以在量产前在真实设备中验证电池接触设计。我们的精密制造工艺对大批量和小批量完全一致——公差和表面质量不随数量变化。

电池接触弹簧的运输与包装

弹簧采用防静电塑料管或托盘包装,防止缠绕和表面损伤。对于电镀弹簧,我们额外添加干燥剂包并真空密封,防止运输过程中变色。标准运输通过DHL或FedEx,3-5天送达美国、欧盟和亚洲主要城市。对于量产订单,我们可安排海运并提供定制包装——如果您的装配线使用自动贴片机,每个弹簧可单独分格。您将收到包含批号和UID代码的装箱单,可追溯至我们的热处理炉记录。有关批次一致性控制的更多信息,请参阅我们的CNC加工公差指南

该系列的最低起订量是多少?

无起订量——我们接受单个原型弹簧,25美元设置费在60天内后续订购超过1,000件时予以免除。

能否匹配特定的接触力曲线?

可以,请将您在20%、50%和80%挠度下的目标力值发送给我们,我们将调整线径和线圈数量,使力值在±5%以内达到目标。

如何确保小批量订单的质量?

所有批次,无论大小,均经过相同的100%尺寸检验和10%负载测试,并随货附上完整测试报告。

定制设计的典型交货期是多久?

图纸确认后,原型产品7个工作日内发货;量产订单需15个工作日,紧急样品可提供48小时加急服务。

请将您的图纸或规格表发送给我们,12小时内提供准确报价。邮件至sc@bquq.com或WhatsApp +86 13713157787。我们将在您确认前确认材料、公差和价格。


相关产品

参数

参数能力
材料SUS302/304/316、SWC琴钢丝、SWP音乐钢丝、65Mn、磷青铜、铍铜
类型压缩弹簧、拉伸弹簧、扭簧、线成型件、电池弹簧、触片弹簧
线径0.05 - 12.0 mm
公差±0.02mm标准,±0.01mm可按要求提供
表面处理镀锌、镀镍、发黑、钝化、喷丸
设备CNC弹簧卷制机、扭簧机、线材成型机
打样72小时,样品无最小起订量
检测每批负载测试,疲劳测试数据可按要求提供

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