Txoj kev teeb raug teeb tsa tawm sab nraud, thiab xob laim hluav taws xob yog qhov kev hem thawj heev. Maj mam, txoj kev teeb lub teeb raug mob, thiab hauv cov teeb meem phem tshaj plaws, nws ua rau hluav taws lossis raug mob thiab ua rau poob loj heev. Ntawm no, kuv yuav qhia koj txog qhov cuam tshuam ntawm xob laim ntawm LED txoj kev teeb thiab kev tiv thaiv kev ntsuas.
Kab lus no xaus hais tias muaj plaub yam tseem ceeb ntawm xob laim:
Xob laim ncaj qha
Qhov ncaj qha xob laim tawm muaj lub zog loj, thiab cov hluav taws xob tam sim no nrog qhov hluav taws xob uas siab tshaj plaws txog 5000kV nkag mus rau hauv av thiab muaj peev xwm loj uas tsis muaj zog. Muaj peb qho teebmeem uas yuav tshwm sim:
ib qho hluav taws xob zoo tam sim no ntws hauv ob peb lub microseconds, ua rau lub hauv av muaj peev xwm sawv sai, ua rau cov khoom tawm tsam thiab cuam tshuam rau tus kheej thiab cov khoom muaj kev nyab xeeb.
b Xob laim hluav taws xob tam sim no ua rau muaj hluav taws xob muaj zog ntawm lub tshuab hluav taws xob uas ua rau lub teeb hluav taws xob tsis zoo ntawm lub zog thiab cov paib kab.
c Xob laim hluav taws xob tam sim no dhau los ntawm cov cuab yeej hluav taws xob los tsim hluav taws xob kub heev, ua rau hluav taws lossis tawg.
Kev sib hlub xob quaj
Lub teeb hluav taws xob nyob hauv qhov deb lossis hluav taws xob ntau uas tsim los ntawm lub tshuab hluav taws xob hauv lub tshuab hluav taws xob tau xa los ntawm cov kab hluav taws xob sab nraum zoov thiab cov kab sib txuas lus mus rau cov khoom siv hluav taws xob nyob rau sab hauv tsev.
Inductive xob quaj
Kev tso tawm zuj zus ntawm cov huab tsim lub zog hluav taws xob muaj zog uas ua rau muaj kev cuam tshuam hom thiab txawv kev cuam tshuam, cuam tshuam rau kev ua haujlwm ntawm cov khoom siv hluav taws xob.
4. Hloov tsheb overvoltage
Kev thau khoom thiab lub peev xwm nyob hauv lub tshuab hluav taws xob tuaj yeem muab tua lossis kaw, ua kom lub ntsej muag luv luv rau hauv av, luv luv hauv kab hluav taws xob, thiab lwm yam, thiab cov xaim hluav taws xob loj tuaj yeem tsim tawm ntawm lub hwj chim kab. Lub tshuab hluav taws xob xaim hluav taws xob tuaj yeem ncav cuag 3 txog 5 zaug ntawm qhov hluav taws xob li qub, uas tuaj yeem ua rau cov khoom siv tsis zoo. Cov. Qhov kev puas tsuaj zoo ib yam li xob laim.
Yog li peb yuav ua li cas tiv thaiv xob laim? Tom qab kev tshawb fawb los ntawm CLP Huaxing Kev Tshawb Fawb Kev Tshawb Fawb Kev Tshawb Fawb, cov hauv qab no yog cov kev tiv thaiv zoo tshaj plaws los tiv thaiv cov teeb hauv kev kom tsis txhob raug teeb meem los ntawm xob laim:
4.1 Sab nraud tiv thaiv xob laim thaiv ua ke nrog kev tiv thaiv hluav taws xob sab hauv
Tam sim no, txoj kev lag luam dav dav LED txoj kev teeb ua los ntawm cov khoom siv neeg xyuas pib, uas yog sib npaug rau ib tus pas nrig xob laim. Nws yog qhov tsim nyog los nruab rau tus neeg tswj hwm nqes thiab hauv av. Cov kab ke no ua hluav taws xob tiv thaiv sab nraud. Lub kaw lus tuaj yeem zam kev tua hluav taws thiab kev nyab xeeb ntawm tus kheej vim tshwm sim los ntawm hluav taws xob ncaj qha ntawm cov teeb ntawm LED. Lub teeb hluav taws xob sab hauv tiv thaiv hluav taws xob yog hais txog kev tiv thaiv cov khoom siv sab hauv txoj kev teeb los ntawm kev teeb hluav taws xob thiab tiv thaiv hluav taws xob. Lub kaw lus tiv thaiv hluav taws xob tiv thaiv sab hauv thiab lwm yam kev siv overvoltage nkag, ua rau lub zog hluav taws xob muaj kev puas tsuaj, uas tsis tuaj yeem lav los ntawm kev tiv thaiv hluav taws xob sab nraud. Ob qho muaj kev sib txuas thiab sib txuam ua ke. Lub kaw lus tiv thaiv xob laim sab hauv yog txuas nrog sab nraud tiv thaiv xob laim lossis tiv thaiv overvoltage tiv thaiv kab ke thiab cov khoom sib txuas ntawm cov khoom siv ntau yam xws li cov hlua sab nraud, cov kab nkag rau hauv thiab tawm hauv qhov chaw tiv thaiv, thiab cov kav hlau.
4.2 kev tiv thaiv xob laim hluav taws xob equipotential ua ke
Meej kom tshem tawm cov kev ua kom muaj qhov sib txawv uas tshwm sim los ntawm xob laim, kab hluav taws xob, teeb liab kab, hlau kav, thiab lwm yam yuav tsum tau muaj qhov sib txuas nrog cov tiv thaiv kev tiv thaiv, thiab lub zos equipotential sib txuas kuj tseem nyob ntawm qhov interface ntawm txhua qhov chaw tiv thaiv sab hauv. Qhov tsim nyog yuav tsum tau muab txoj hlua khi sib txuas ua ke thiab thaum kawg txuas nrog lub ntsiab hluav taws xob loj.
4.3 Teeb tsa thaj chaw tiv thaiv xob laim
Tam sim no, ntxiv rau cov khoom siv fais fab, LED txoj kev teeb ci tseem yuav tau nruab nrog qee cov khoom sib txuas lus rau kev tswj tus tes hloov qhov thiab lub teeb ci ntawm txoj kev teeb. Cov cuab yeej siv no thiab cov khoom siv hluav taws xob yuav tsum tau muab tso rau hauv qhov chaw tiv thaiv xob laim, thiab qhov chaw tiv thaiv ncaj qha tiv thaiv sab nraud los ntawm cov hlua sab nraud. Lub electromagnetic teb ntawm no yog ntau tsis muaj zog.
4.4 cov cuab yeej zoo tiv thaiv - hluav taws xob tiv thaiv module thiab overvoltage tiv thaiv module
Lub luag haujlwm ntawm tus xob laim ntes yog los txuas cov kev tiv thaiv kab ke rau nruab nrog cov khoom nruab nrab nyob rau hauv lub sijhawm luv (nanoseconds), yog li ntawd cov chaw nres nkoj ntawm lub cuab yeej yog equipotential. Nyob rau tib lub sijhawm, lub zog loj los ntawm lub teeb hluav taws xob uas tsim los ntawm kev tawm tsam hluav taws xob hauv hluav taws xob raug tso tawm rau hauv lub ntiaj teb los ntawm cov kab luv luv, thiab qhov muaj peev xwm sib txawv ntawm qhov xaus ntawm cov cuab yeej txo qis, yog li tiv thaiv lub cuab yeej. Lub koom haum CLP Huaxing Technology R& D pab neeg ntseeg hais tias LED txoj kev teeb lub teeb hluav taws xob fais fab yuav tsum tsis yog tsim los ntawm kev ua raws li cov lus teev saud nkaus xwb, tabsis yuav tsum tau ua raws li kev kuaj xyuas nruj.
Kev tswj cov khoom siv nrog qhov ntsuas hluav taws xob tas li lossis qhov hloov hluav taws xob tsis tu ncua tam sim no lossis ob qho kev ua haujlwm yuav tsum sim los ntawm GB19510.12 / IEC61347-2-13 tus qauv kev nyab xeeb.
b Rau cov khoom siv tswj uas tsuas yog muaj txoj haujlwm ua haujlwm ntawm kev tswj hwm lub ci ntsa iab ntawm LED, xws li lub teeb thiab tsaus, nyem, xim, thiab lwm yam, GB19510.12 / IEC61347-2-11 kev nyab xeeb tus qauv yuav tsum raug siv rau kev tshuaj xyuas.
c Yog tias lub cuab yeej tswj tau muaj ob qho kev ua haujlwm, nws yuav raug kuaj xyuas raws li cov qauv kev nyab xeeb ntawm GB19510.12 / IEC61347-2-13.
Kev xyaum tau ua pov thawj tias tom qab kev tsim qauv thiab soj ntsuam nruj, tsis yog tsuas yog LED txoj kev teeb tsa kev tiv thaiv los ntawm xob laim puas, tab sis kuj tseem hom hom thiab txawv hom cuam tshuam ntawm lub teeb ntawm xob laim ntawm cov khoom siv fais fab. Cia peb qhia lub zog hluav taws xob tsim ntawm hluav taws xob tiv thaiv.
5 hluav taws xob tiv thaiv hluav taws xob tsim qauv
Cov teeb ci LED txoj kev teeb tsa sab nraum zoov thiab yooj yim puas ntawm xob laim lossis hluav taws xob tawg, yog li cov chav tiv thaiv xob laim xav tau tsim qauv. Kev tiv thaiv xob ntawm lub teeb lub teeb tau muab faib ua ob theem. Thawj theem yog tiv thaiv qhov ncaj qha xob laim tawm tsam, thiab tus hlau teeb ncej yog lub hauv paus rau kev ua haujlwm. Qhov thib ob theem yog tiv thaiv kev tiv thaiv xob laim hluav taws xob thiab hluav taws xob tiv thaiv hluav taws xob, kab hluav taws xob hloov pauv, thiab lwm yam.
