Fuse Self-Recovery Function

Thaum qhov overcurrent overheating failure raug tshem tawm, lub fuse element tuaj yeem rov qab mus rau qhov tsis muaj zog tsawg. Qhov no zam kev hloov kho thiab kev qhib thiab kaw ntawm cov voj voog sib law liag uas tuaj yeem ua rau lub circuit puas tsuaj. Vim nws txoj kev tsim tshwj xeeb, lub reset fuse muaj ob lub luag haujlwm ntawm overcurrent thiab overheating tiv thaiv nrog rau kev rov qab kho tsis siv neeg. Lub fuse rov qab kho tus kheej yog ua los ntawm kev sib xyaw ntawm polymers thiab cov ntaub ntawv conductive. Lub polymer reset fuse muaj cov polymer resin matrix thiab cov khoom conductive faib rau hauv nws. Hauv qab qhov xwm txheej ib txwm muaj, cov khoom conductive hauv cov resin matrix tsim cov saw hlau conductive pathway, thiab cov polymer tuaj yeem rov qab kho lub fuse kom muaj impedance qis (a). Thaum muaj hluav taws xob tshwm sim hauv lub circuit, cua sov los ntawm cov khoom conductive siab ntws los ntawm cov polymer tuaj yeem rov qab kho lub fuse ua rau qhov ntim ntawm cov polymer resin substrate nthuav dav, txiav tawm txoj kev conductive saw hlau uas tsim los ntawm cov khoom conductive, ua rau muaj kev nce ntxiv sai hauv impedance yog li ntawd, cov polymer tuaj yeem rov qab kho lub fuse tuaj yeem ua si tiv thaiv overcurrent rau lub circuit (b). Tom qab qhov ua tsis tiav raug tshem tawm, cov resin txias thiab crystallizes dua, lub ntim shrinks, cov khoom conductive tsim cov channel conductive dua, thiab cov polymer tuaj yeem rov qab kho lub fuse kom qis impedance. Piv nrog cov fuses ib txwm muaj, nws muaj qhov zoo ntawm kev rov ua dua tus kheej, me me thiab muaj zog dua.