Daim ntawv thov ntawm PTC Thermistor
1. Ncua pib PTC thermistor Los ntawm nws tus yam ntxwv nkhaus ntawm PTC thermistor, nws paub tias PTC thermistor siv lub sijhawm kom ncav cuag lub siab ua haujlwm tom qab siv qhov hluav taws xob, thiab tus cwj pwm qeeb no yog siv rau lub hom phiaj pib qeeb. Thaum lub cev muaj zog pib, nws yuav tsum tau kov yeej nws tus kheej inertia thiab cov tshuaj tiv thaiv quab yuam ntawm lub load (piv txwv li, cov tshuaj tiv thaiv quab yuam ntawm lub tub yees yuav tsum tau kov yeej thaum lub tub yees compressor pib), yog li lub cev muaj zog xav tau ib tug loj tam sim no thiab torque. pib. Thaum qhov kev sib hloov yog qhov qub, txhawm rau txuag lub zog, qhov xav tau torque yuav raug txo kom tsawg. Ntxiv ib txheej auxiliary coils rau lub cev muaj zog, nws tsuas yog ua haujlwm thaum nws pib, thiab nws disconnects thaum nws zoo li qub. Txuas lub PTC thermistor nyob rau hauv series nrog lub pib auxiliary kauj. Tom qab pib, PTC thermistor nkag mus rau hauv lub xeev siab kom txiav tawm cov auxiliary coil, uas tuaj yeem ua tiav cov nyhuv no. 2. Kev tiv thaiv overload PTC thermistor PTC thermistor rau kev tiv thaiv overload yog cov khoom tiv thaiv uas tuaj yeem tiv thaiv thiab rov qab los ntawm qhov kub thiab txias tsis zoo, feem ntau hu ua "resettable fuse" thiab "kaum txhiab lub sij hawm fuse". Nws hloov cov fuses ib txwm muaj thiab tuaj yeem siv dav rau kev tiv thaiv overcurrent thiab overheating tiv thaiv cov motors, transformers, switching power supply, electronic circuits, etc. PTC thermistors for overload tiv thaiv txwv kev noj nyob rau hauv tag nrho cov kab los ntawm kev hloov tam sim ntawd ntawm tus nqi kuj yuav txo tau. residual tam sim no tus nqi. Cov fuse ib txwm tsis tuaj yeem rov qab los ntawm nws tus kheej tom qab cov kab tau tawg, thiab PTC thermistor rau kev tiv thaiv overload tuaj yeem rov qab mus rau lub xeev kev tiv thaiv ua ntej tom qab qhov kev ua txhaum raug tshem tawm, thiab nws cov overcurrent thiab thermal tiv thaiv muaj nuj nqi tuaj yeem pom tau thaum qhov txhaum tshwm sim dua. .Xaiv lub PTC thermistor rau kev tiv thaiv overload raws li lub overcurrent thermal tiv thaiv keeb. Ua ntej, paub meej tias qhov siab tshaj plaws ua haujlwm tam sim no ntawm kab (uas yog, qhov tsis ua haujlwm tam sim no ntawm PTC thermistor rau kev tiv thaiv overload) thiab kev teeb tsa ntawm PTC thermistor rau kev tiv thaiv overload (thaum lub sijhawm ua haujlwm ib txwm). ) Qhov siab tshaj plaws ambient kub, ua raws li kev tiv thaiv tam sim no (uas yog, kev khiav hauj lwm tam sim no ntawm PTC thermistor rau kev tiv thaiv overload), qhov siab tshaj plaws ua haujlwm voltage, ntsuas xoom-lub zog tsis kam, thiab cov yam ntxwv xws li qhov ntev ntawm cov khoom yuav tsum tau. raug txiav txim siab. Thaum lub voj voog nyob rau hauv ib txwm muaj, qhov tam sim no dhau los ntawm PTC thermistor rau kev tiv thaiv overload yog tsawg tshaj li qhov ntsuas tam sim no, thiab PTC thermistor rau kev tiv thaiv overload yog nyob rau hauv ib txwm muaj, nrog rau tus nqi me me, uas yuav tsis cuam tshuam rau cov khoom siv hluav taws xob. ib txwm ua haujlwm ntawm kev tiv thaiv Circuit Court. Thaum lub Circuit Court tsis ua hauj lwm thiab tam sim no zoo heev tshaj qhov ntsuas tam sim no, PTC thermistor rau kev tiv thaiv overloads dheev heats thiab nyob rau hauv lub siab tsis kam, ua rau lub Circuit Court nyob rau hauv ib tug kuj "tawm" xeev, yog li tiv thaiv Circuit Court los ntawm kev puas tsuaj.Thaum qhov kev ua txhaum raug tshem tawm, PTC thermistor rau kev tiv thaiv overload kuj tuaj yeem rov qab mus rau lub xeev tsis muaj zog, thiab lub voj voog rov ua haujlwm li qub. 3. Kev tiv thaiv overheat PTC thermistor Curie kub ntawm PTC thermistor sensor yog los ntawm 40 txog 300 ° C. Ntawm RT tus yam ntxwv nkhaus ntawm PTC thermistor sensor, qhov nce siab ntawm tus nqi tiv thaiv tom qab nkag mus rau thaj chaw hloov pauv tuaj yeem siv los ua qhov kub thiab txias, qib ua kua, thiab ntsuas qhov ntws. daim ntawv thov. Raws li cov yam ntxwv kub-rhiab heev ntawm PTC thermistor, nws yog tsim los siv rau hauv kev tiv thaiv overheat thiab ntsuas kub ntawm lub sijhawm, thiab siv rau hauv cov khoom siv hluav taws xob hloov hluav taws xob, cov khoom siv hluav taws xob (lub cev muaj zog, transformers), cov khoom siv hluav taws xob (transistors). Nws yog tus cwj pwm los ntawm qhov me me thiab lub sijhawm teb ceev ceev. , Yooj yim rau nruab. Qhov txawv ntawm PTC thiab KTY:Siemens siv KTY Ua ntej ntawm tag nrho cov, lawv yog ib hom ntawm lub cev muaj zog kub tiv thaiv ntaus ntawv; PTC yog qhov tsis kam nrog qhov kub zoo coefficient, uas yog, tus nqi kuj nce ntxiv thaum kub nce; Lwm qhov yog tias NTC yog qhov sib txawv ntawm qhov sib txawv nrog qhov tsis zoo ntawm qhov kub thiab txias, thiab tus nqi kuj txo qis thaum kub nce, thiab tsis siv rau kev tiv thaiv lub cev muaj zog.KTY muaj qhov ua tau zoo, muaj kev ntseeg siab thiab ruaj khov.Feem ntau yog siv nyob rau hauv lub tshav pob ntawm kev ntsuas kub.KTY yog them nrog ib txheej ntawm silicon dioxide insulating khoom, ib lub qhov hlau nrog ib txoj kab uas hla ntawm 20 hli yog qhib rau ntawm insulating txheej, thiab tag nrho cov hauv qab txheej yog tag nrho metalized.Kev faib tawm tam sim no uas yog tapered los ntawm sab saum toj mus rau hauv qab yog tau los ntawm kev teeb tsa ntawm cov muaju, yog li nws yog lub npe hu ua diffusion resistance.KTY muaj qhov ua tau zoo nyob rau hauv kab linear kub coefficient tshaj tag nrho cov ntsuas kub, yog li ua kom ntseeg tau qhov ntsuas kub ntawm qhov raug. 
PT100 platinum thermal kuj yog tsim thiab tsim los ntawm kev siv lub hauv paus ntsiab lus uas tus nqi kuj ntawm platinum hlau hloov nrog kev hloov ntawm qhov kub thiab txias. ) thiab 100 ohms (tus lej kawm tiav yog Pt100), thiab lwm yam, qhov ntsuas kub yog -200 ~ 850 ℃. Qhov ntsuas kub ntawm qhov ntsuas ntawm 10 ohm platinum thermal kuj yog ua los ntawm cov hlau platinum tuab, thiab qhov ntsuas kub ua haujlwm tau zoo heev. 100 ohm platinum thermal kuj, tsuav yog siv nyob rau hauv qhov kub thiab txias cheeb tsam saum toj no 650 ℃: 100 ohm platinum thermal kuj yog tsuas yog siv nyob rau hauv lub kub cheeb tsam hauv qab no 650 ℃, tab sis nws kuj siv tau nyob rau hauv lub kub cheeb tsam saum toj no 650 ℃, tab sis nyob rau hauv cheeb tsam kub siab tshaj 650 ℃ Class A yuam kev tsis raug tso cai. Qhov kev daws teeb meem ntawm 100 ohm platinum thermal kuj yog 10 npaug loj dua li ntawm 10 ohm platinum thermal kuj, thiab cov kev xav tau rau cov twj paj nruag thib ob yog sib npaug ntawm qhov kev txiav txim siab. Yog li, 100 ohm platinum thermal kuj yuav tsum tau siv kom deb li deb tau rau kev ntsuas kub hauv thaj chaw kub qis dua 650 ° C.
Post lub sij hawm: Aug-20-2022 
