【经验】电动按摩椅上的保险丝总是烧，怎么破？

时间： 2017-05-10 来源：世强作者：荷风

技术问答

健康产业是 21 世纪的朝阳产业，随着经济的发展和人民生活水平的提高，保健养生逐渐成为一种社会生活的理念，不仅在中国，全球范围内具有按摩保健功能的按摩器具也逐渐被广大消费者接受，产品的市场普及率预计将呈现持续上升趋势。

按摩椅是按摩器具中市场份额最大、附加值最高的产品种类，可以模拟“推、敲、揉、扣、捏”等各种按摩手法，实现几乎所有按摩功能，是按摩器具中的集大成产品，集合了行业最为先进的技术理念。

要实现这些高难度的各种按摩手法，离开不开各种电机来执行控制行程与力度的输出、从而实现对机械手、气囊按摩手法的控制。为了防止用户的不当操作带来不可预估的堵转等电机过载，损害电机，在设计电机电源时需要仔细考虑到电路的过流保护设计。

用于电路保护的高分子PTC元件又称为自恢复保险丝。与传统的熔断器及其它的电路保护器相比，它同样具有过流、过载和超温保护功能，但它不像熔断器那样熔断后必须要更换，在故障消除后，它可以自动复原，使电路返回正常的工作状态。PTC元件串接在电路中，正常情况下，呈低阻状态，保证电路正常工作；当电路发生短路或窜入异常大电流时，PTC元件的自热使其阻抗增加把电流限制到足够小，起到过电流保护作用。当产生过电流的故障得到排除，PTC元件自动复原到低阻状态。因此，它可以使制造商减少维修和售后服务的成本，提高产品的质量。PTC元件是固态的，具有耐高压、耐高温和防震的功能，它可以为各种各样的行业产品中提供可靠的电路保护。

LITTELFUSE是一家全球范围内全面生产包括PTC、Fuse、TVS管、ESD、GDT等高中低压保护器件的国际品牌，产品广泛应用与工化、汽车、通信和消费领域。Littelfuse 60R系列自恢复保险丝采用高分子聚合物材料制造，具有快速响应和自动恢复的特点，其感测温度和电流变化的速度远远快于双金属温控器，适合于电动按摩椅中各类直流电机的过流保护电路。

60R PTC自恢复保险线

图1：60R PTC自恢复保险线

Littelfuse 60R系列自恢复保险丝全系统额定电流范围覆盖0.1~3.75A，过载保护反转电流为额定电流的2倍即从0.2~7.5A，额定直流电压为60VDC,工作温度范围-40~+85℃，极限环境温度为125℃ 完全满足各类功率中小型功率电机的电流过载保护应用。

相关技术文档：

Littelfuse 60R系列PTC 数据手册详情>>>

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快速参考指南 - LITTELFUSE - 2016年01月01日 PDF 英文下载

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型号- 1.5SMC540CA,SMBJ,1812L,SMBJ8.5CA,5KP200A,SMBJ51A,SMBJ75A,SMBJ70CA,SG75,SL1411A600A,PLED 5 QFN,5KP40A,5KP64A,AC,1812L020PR,SMBJ40A,SMBJ17CA,SMBJ64A,1.5SMC200CA,1.5SMC36CA,5KP18CA,1.5SMC13CA,5KP51A,5KP75A,SMBJ160CA,0312005.MXP,0456040.DR,5KP8.5CA,K1500GRP,1812L110/33MR,SMBJ85A,SMBJ28CA,5KP160CA,CG3,K2200G,5KP78A,1.5SMC510A,60R110XU,5KP,5KP28CA,SMBJ300A,5KP30A,CG35.0,5KP54A,SMBJ150CA,MDCG-4,1206L012WR,1206L110WR,1.5SMC8.2CA,SMBJ16CA,1812L150/12DR,5KP70CA,5KP17CA,CG35.0LTR,5KP180CA,CG32.0,K1100GRP,5KP60A,1.5SMC7.5CA,SMBJ170CA,1.5SMC27CA,SMBJ400A,K1200E70,1.5SMC91CA,SMBJ60A,SMBJ15CA,1.5SMC180CA,1.5SMC400A,5KP16CA,1.5SMC15CA,1.5SMC9.1CA,1.5SMC6.8CA,SL1411A800A,SMBJ26CA,SMBJ400CA,1.5SMC300A,60R050X,60R,5KP26CA,SMBJ90CA,1.5SMC300CA,SL1411A800,1.5SMC530CA,60R010XU,SMBJ70A,SMBJ14CA,1.5SMC530A,5KP170CA,60R075X,60R160X,5KP15CA,5KP85A,1.5SMC16CA,1.5SMC39CA,SM24CANA-02HTG,60R090XPR,1.5SMC82CA,SMBJ48CA,60R300X,1.5SMC200A,5KP12A,5KP36A,5KP24A,5KP48A,1.5SMC36A,1.5SMC24A,1.5SMC12A,0452002.,5KP48CA,5KP200CA,1.5SMC510CA,K2200SRP,SMBJ130CA,SM24CANA,5KP6.5CA,5KP90CA,1.5SMC11A,SMBJ13CA,1.5SMC540A,5KP190CA,SMBJ36CA,5KP11A,1.5SMC47A,0456030.ER,1812L075/33DR,5KP14CA,SL1411A,048502.5,SMBJ24CA,1.5SMC440A,1812L050PR,5KP14A,1.5SMC170CA,5KP26A,CG31.5LTR,CG31.5,5KP24CA,SMBJ90A,SMBJ12CA,1.5SMC400CA,1.5SMC550A,SMBJ58CA,5KP13A,SMBJ188CA,1.5SMC13A,SMBJ350CA,0452001.,1.5SMC18CA,5KP8.0CA,5KP13CA,5KP36CA,AC120,SMBJ5.0A,1.5SMC220A,1812L150/24,0312.062MXP,048502.5DR,K2400G,SMBJ180A,1.5SMC16A,312,SL1411A470A,1.5SMC150CA,5KP20A,1206L035YR,045803.5,1206L050/15YR,5KP100CA,SMBJ11CA,1.5SMC100A,V05E17P,SL1411A090,5KP7.5CA,1.5SMC39A,1.5SMC27A,1.5SMC15A,5KP190A,K1500SRP,5KP210CA,K1500E70,0452007.,5KP12CA,5KP58CA,5KP43A,1.5SMC62CA,SMBJ22CA,SMBJ45CA,CG32.0LTR,452,5KP22A,1.5SMC18A,5KP58A,SMBJ170A,SMBJ10CA,456,458,LV ULTRAMOV,K1500,1206L150PR,60R090X,5KP22CA,5KP45CA,5KP10A,K1200G,5KP5.0A,CG31.01,1812L200DR,SMBJ6.0A,1.5SMC110A,SMBJ33CA,SMBJ250CA,5KP45A,1206L150THWR,5KP33A,5KP9.0CA,5KP180A,5KP11CA,SL1411A350A,1.5SMC160CA,0452005.,SMBJ5.0CA,5KP6.0A,60R110XMR,SMBJ220CA,1.5SMC250CA,1.5SMC480CA,5KP110CA,60R075XPR,045602.5,SMBJ160A,0456030.,1812L200THPR,5KP6.0CA,1.5SMC51CA,K2200GRP,1.5SMC120A,1.5SMC75A,SMBJ78CA,1.5SMC51A,SG300,1.5SMC350A,60R110X,5KP10CA,SMBJ43CA,5KP170A,SMBJ20CA,1.5SMC9.1A,1812L110,5KP33CA,0458007.DR,SMBJ7.0A,1.5SMC30A,1.5SMC480A,1.5SMC,1206L160ZR,1.5SMC250A,TMOV25SP115E,5KP20CA,5KP43CA,SMBJ54CA,SG,SMBJ18A,1812L075/24DR,5KP220CA,1812L010DR,0456040.,1206L200,SMBJ150A,1206L050YR,1.5SMC75CA,60R160XF,0458007.,0452007.MRL,SMBJ6.0CA,1.5SMC130A,5KP160A,K2000F1,SMBJ100CA,1.5SMC7.5A,1.5SMC8.2A,1812L050/30PR,1.5SMC6.8A,5KP78CA,0452001.MRL,0456020.ER,1.5SMC20A,SMBJ6.5A,5KP7.0CA,5KP16A,SMBJ16A,SMBJ30CA,1.5SMC68A,5KP28A,SMBJ28A,1.5SMC56A,5KP6.5A,1812L200,SMBJ188A,K1200,5KP7.0A,SMBJ8.0A,1.5SMC30CA,1.5SMC43A,5KP150A,SMBJ440CA,5KP54CA,SMBJ64CA,60R300XF,5KP15A,K2400,SMBJ17A,1812L300MR,1.5SMC350CA,1206L110,SMBJ250A,SMBJ120CA,1.5SMC43CA,5KP8.0A,1.5SMC20CA,1.5SMC22A,1.5SMC10A,5KP250A,5KP64CA,SMBJ14A,SMBJ75CA,SMBJ26A,5KP18A,1812L300,0456020.,SMBJ110CA,0458001.,SMBJ7.0CA,K1100,SMBJ130A,1.5SMC130CA,0312002.MXP,SL1411A470,SL1411A350,1206L016,SMBJ7.5A,1.5SMC33A,5KP120CA,1.5SMC150A,SMBJ40CA,5KP30CA,SMBJ15A,5KP17A,1206L012,1206L075/13.2WR,K1500G,SMBJ9.0A,045803.5DR,0312035.MXP,SMBJ12A,SMBJ51CA,60R185X,5KP40CA,SMBJ36A,SMBJ24A,SMBJ48A,0452002.MRL,MDSR-10,SMBJ350A,1.5SMC110CA,SMBJ120A,1.5SMC91A,TMOV25S,SMBJ6.5CA,60R030XU,5KP130A,0312002.,1.5SMC160A,5KP75CA,1206L150,SMBJ13A,SMBJ85CA,K2200,1206L035,5KP7.5A,0456025.,1812L075,5KP250CA,SMBJ8.0CA,K2400SRP,1.5SMC22CA,SMBJ8.5A,0452005.MRL,5KP130CA,1.5SMC82A,60R030X,1206L160,SMBJ22A,60R250XF,5KP85CA,SMBJ58A,K2400E70,5KP70A,SMBJ110A,5KP8.5A,1.5SMC68CA,SL1411A600,SMBJ300CA,1.5SMC170A,1.5SMC33CA,1.5SMC10CA,1206L075THYR,5KP9.0A,5KP120A,1206L016WR,SMBJ10A,1206L050,1812L050,0456025.ER,5KP51CA,SMBJ11A,0312005.,SMBJ220A,SMBJ180CA,1.5SMC56CA,1.5SMC120CA,KXXXZY,1206L,K2000E70RP3,SMBJ43A,5KP220A,SMBJ7.5CA,1.5SMC440CA,60R250X,0458001.DR,SMBJ100A,1.5SMC550CA,1.5SMC180A,1.5SMC11CA,5KP5.0CA,5KP110A,SMBJ20A,5KP150CA,SMBJ45A,SMBJ33A,K2000,SMBJ9.0CA,1206L200PR,SMBJ60CA,0458001.DRA,1.5SMC100CA,1206L075,1812L150,SMBJ440A,5KP90A,0312035.,1.5SMC62A,SMBJ200CA,5KP210A,SM24CANA-02,SMBJ78A,60R010X,5KP60CA,60R050XPR,1.5SMC47CA,1.5SMC24CA,1812L020,60R185XF,SL1411A090C,0312.062,SMBJ30A,SMBJ18CA,1.5SMC220CA,5KP100A,SMBJ54A,0312.187,1812L110/16DR,SMBJ200A,1.5SMC12CA,1812L010

培训文档-商品应用及供应商介绍 - LITTELFUSE - 2016年01月01日 PDF 中文下载

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型号- 60R050XFR,60R017XPR,60R065XU,60R090XPR,60R075XHR,60R010XUR,60R110XMR,60R300X,60R075XPR,60R025X,60R065XF,60R185X,60R065XH,60R135XPR,60R185XMR,60R030XUR,60R040X,60R065XM,60R090XHR,60R065XP,60R030XMR,60R065XUR,60R110XFR,60R020XPR,60R135XFR,60R030XU,60R020XHR,60R185XUR,60R135X,60R030XH,60R065X,60R110X,60R250XFR,60R030XF,60R017XHR,60R030XP,60R030XM,60R010XMR,60R020XU,60R075XFR,60R250XU,60R040XPR,60R110XF,60R110XH,60R110XM,60R040XHR,60R135XMR,60R030X,60R110XP,60R250XF,60R375XUR,60R025XUR,60R300XUR,60R110XU,60R010XFR,60R250XH,60R020XH,60R160XUR,60R020XF,60R020XM,60R250XM,60R250XP,60R020XP,60R160XMR,60R160XH,60R160XF,60R160XFR,60R050XU,60R075XMR,60R160XP,60R375XMR,60R160XM,60R110XUR,60R160XU,60R050XUR,60R050XF,60R050XH,60R250XHR,60R135XUR,60R030XFR,60R050XMR,60R185XFR,60R050XM,60R050XP,60R250XPR,60R025XFR,60R300XFR,60R020XMR,60R025XP,60R065XPR,60R025XM,60R375XFR,60R040XU,60R017X,60R065XHR,60R025XU,60R040XH,60R075XUR,60R020X,60R010XHR,60R040XFR,60R040XF,60R250X,60R025XH,60R040XP,60R025XF,60R010XPR,60R040XM,60R017XM,60R017XMR,60R017XP,60R300XU,60R375XF,60R090XMR,60R017XU,60R375XH,60R025XMR,60R300XMR,60R017XUR,60R300XM,60R375XM,60R300XP,60R090XUR,60R030XPR,60R375XP,60R160XPR,60R300XF,60R300XH,60R185XPR,60R375XU,60R030XHR,60R020XUR,60R160XHR,60R017XH,60R185XHR,60R017XF,60R375XHR,60R090XH,60R135XH,60R090XF,60R135XF,60R065XFR,60R025XHR,60R300XHR,60R375XPR,60R135XP,60R010X,60R135XM,60R250XMR,60R050X,60R050XPR,60R,60R090X,60R135XU,60R250XUR,60R090XFR,60R050XHR,60R185XF,60R185XH,60R040XUR,60R075XU,60R010XU,60R110XHR,60R065XMR,60R020XFR,60R040XMR,60R185XP,60R375X,60R135XHR,60R185XM,60R110XPR,60R075XH,60R090XP,60R075X,60R075XF,60R090XM,60R010XH,60R160X,60R010XF,60R025XPR,60R300XPR,60R185XU,60R075XP,60R017XFR,60R090XU,60R010XP,60R075XM,60R010XM

数据手册 - LITTELFUSE - Revised: 01/23/15 - 2015年01月23日 PDF 英文下载