储能电源产品安规简述

便携式储能产品近些年来发展迅猛，与储能电源质量相关的安全事故也频频发生，买家或电商平台越来越重视对储能电源产品的质量安全管控。由美国安全检定实验室公司（Underwriteries Laboratories Inc）推出的UL2743标准最早应用于便携式储能产品，由国际电工委员会（International Electrotechnical Commission）推出的IEC60335、IEC60730标准随后也应用于此类产品的管控。安规管控是产品销售到市场的最低要求，有利于指导研发人员在设计方案和测试的动态调整中不断优化，设计出安全可靠的产品。

Functional Safety (FS) taken from the TuV website:
o Functional Safety (FS)is the safeguard against hazards resultingfrom faulty and interrupted functionality. More and moresafety-related control systems are being used primarily in themanufacturing and process industries as well as in the railway,automotive and medical industries with the aim of reducing therisk of hazards.
Safety must be ensured under normal and/or undisturbed(oconditions and maintained in case of abnormal conditions, re-quiring products to be designed in such a way that fault, fail-ures and external influences do not result in cases of undetected loss of safety

The basic Functional Safety standard is lEc61508 and it is applica.ble to all industries. Each industry has its own nuance, therefore somany have developed their own standards based off lEC61508IEC60335 or lEC60730 will be applicable for Portable Power.
A number of standards will divide Functional Safety into 3 separateClasses(taken from lEC 60730-1:2022)
Class A: Control functions which are not intended to be reliedupon for the safety of the application.(e.g., speed control)Class B: Control functions which are intended to prevent an un-safe state of the appliance.(e.g., Cell voltage overcharge)Class C: Control functions which are intended to prevent specialhazardssuch as explosion or whose failure could directly cause ahazard in the appliance.(e.g.,explosion of the controlled equipment)

TheIEC60730 safety standard defines the test and diagnostic methods that ensure the safe operation of embedded control hardware and software for household appliances. To achieve functional safety, it's necessary to remove all risk of hazards caused by system malfunction.

For Portable Power, somesituationssuch as overcharge or overtempertaure should be controlled by Class B.That's why we need tohave secondaryprotectorfromhardware side andClass Bsafety libararyfrom softwareside.

符合美国UL2743标准的产品对于零部件管控要求有如下内容：

通过UL2743标准检测，还必须拥有以下认证文件资料：

• 整体外观尺寸图
• 电路板的电路原理图
• 电路板的元器件位图/PCB layout
• 产品规格书
• 电芯规格书
• 关键件清单及关键零部件规格书
• 散热片尺寸图
• 电子档标签

在测试的过程中，需要通过的测试条件有以下内容：

• 输入测试 /Power input Test
• 正常充电测试/Normal Charging OperationTest
• 谢电流测试/Leakage Current Test
• 正常温升测试/Normal Temperature Test
• 潮态后漏电流测试/eakage CurrentFollowing Humidity Conditioning
• 耐压测试/Dielectric Voltage Withstand Test
• 输出短路测试 /Output short test
• 反极性测试/Reverse polarity of boostercables
• 元器件异常/Component faults
• 封孔测试/Blocked ventilation test
• 过充电测试 /Overcharging test
• 振动测试/Vibration test
• 接地连续性 /Ground Continuity
• 应力测试/Strain Relief Test
• 撞击测试/lmpact test
• 跌落测试 /Drop test
• 烤箱测试 /Mold Stress Test
• 静力强度测试/Hydrostatic Strength Test
• 淋雨测试 /Rain Test
• 能源包载流容量测试 /Power Pack AmpacityTest
• 反馈测试 /Back Feed Test
• 冷弯试验 /Cold Bend Test
• 夹子测试 /Clamp test