Electrolytic Capacitors ndiye Chifukwa Chachikulu cha Moyo Waufupi wa Nyali za LED
Nthawi zambiri zimamveka kuti moyo waufupi wa nyali za LED makamaka chifukwa cha moyo waufupi wamagetsi, ndipo moyo waufupi wamagetsi ndi chifukwa cha moyo waufupi wa capacitor electrolytic. Zonena izi zimamvekanso. Chifukwa msika wadzaza ndi chiwerengero chachikulu cha ma electrolytic capacitors afupikitsa komanso otsika, kuphatikizapo kuti tsopano akulimbana ndi mtengo, opanga ena amagwiritsa ntchito ma electrolytic capacitors osakhalitsa osakhalitsa mosasamala kanthu za khalidwe.
Choyamba, moyo wa electrolytic capacitor umadalira kutentha kozungulira.
Kodi moyo wa electrolytic capacitor umafotokozedwa bwanji? Inde, amatanthauzidwa mu maola. Komabe, ngati chiwerengero cha moyo wa capacitor electrolytic ndi maola 1,000, sizikutanthauza kuti electrolytic capacitor wasweka patatha maola chikwi chimodzi, ayi, koma kuti mphamvu ya electrolytic capacitor yafupika ndi theka pambuyo pa maola 1,000, omwe anali. poyamba 20uF. Tsopano ndi 10uF yokha.
Kuphatikiza apo, index ya moyo ya electrolytic capacitors imakhalanso ndi mawonekedwe omwe amayenera kunenedwa kuti ndi magawo angati a moyo wa kutentha kwa chilengedwe. Ndipo nthawi zambiri amatchulidwa ngati moyo pa 105 ° C yozungulira kutentha.
Izi ndichifukwa choti ma electrolytic capacitor omwe timakonda kugwiritsa ntchito masiku ano ndi ma electrolytic capacitor omwe amagwiritsa ntchito electrolyte yamadzimadzi. Inde, ngati electrolyte youma, capacitance idzatha. Kutentha kwapamwamba, electrolyte imasungunuka mosavuta. Choncho, index moyo wa capacitor electrolytic ayenera kusonyeza moyo pansi zimene yozungulira kutentha.
Kotero ma capacitor onse a electrolytic panopa amalembedwa pa 105 ° C. Mwachitsanzo, electrolytic capacitor yodziwika bwino imakhala ndi maola 1,000 okha pa 105 ° C. Koma ngati mukuganiza kuti moyo wa ma capacitors onse a electrolytic ndi maola 1,000 okha. Zimenezo zingakhale zolakwika kwambiri.
Mwachidule, ngati kutentha kozungulira kuli kwakukulu kuposa 105 ° C, moyo wake udzakhala wosakwana maola 1,000, ndipo ngati kutentha kwapakati kumakhala kochepa kuposa 105 ° C, moyo wake udzakhala wautali kuposa maola 1,000. Ndiye kodi pali ubale wovuta kwambiri pakati pa moyo ndi kutentha? Inde!
Chimodzi mwa maubwenzi osavuta komanso osavuta kuwerengera ndi chakuti pa 10 digiri iliyonse yowonjezera kutentha kozungulira, nthawi ya moyo imachepetsedwa ndi theka; kumbali ina, pa kuchepa kwa madigiri 10 aliwonse mu kutentha kozungulira, nthawi ya moyo imawirikiza kawiri. Zoonadi uku ndi kuyerekezera kophweka, komanso ndikolondola.
Chifukwa ma electrolytic capacitor omwe amagwiritsidwa ntchito pamagetsi oyendetsa magetsi amayikidwa mkati mwa nyumba ya nyali ya LED, timangofunika kudziwa kutentha mkati mwa nyali ya LED kuti tidziwe moyo wogwira ntchito wa electrolytic capacitor.
Chifukwa mu nyali zambiri ma LED ndi electrolytic capacitors amaikidwa mu casing yomweyo, kutentha kwa chilengedwe cha awiriwa ndi chimodzimodzi. Ndipo kutentha kozungulira kumeneku kumatsimikiziridwa makamaka ndi kutentha ndi kuzizira kwa LED ndi magetsi. Ndipo kutentha ndi kuzizira kwa nyali iliyonse ya LED ndizosiyana.
Njira yowonjezera moyo wa electrolytic capacitor
① kutalikitsa moyo wake mwa kupanga
Ndipotu, njira yowonjezera moyo wa electrolytic capacitors ndi yosavuta, chifukwa mapeto ake a moyo makamaka chifukwa cha evaporation wa electrolyte madzi. Ngati chisindikizo chake chiwongoleredwa ndipo sichiloledwa kusuntha, moyo wake umatalikitsidwa.
Kuphatikiza apo, potengera chivundikiro cha pulasitiki cha phenolic chokhala ndi electrode mozungulira lonse, ndi gasket yapadera iwiri yolumikizidwa mwamphamvu ndi chipolopolo cha aluminiyamu, kutayika kwa electrolyte kumatha kuchepetsedwa kwambiri.
② Kutalikitsa moyo wake kuti asagwiritsidwe ntchito
Kuchepetsa kuthamanga kwake kungathenso kuwonjezera moyo wake wautumiki. Ngati ma ripple current ndi akulu kwambiri, amatha kuchepetsedwa pogwiritsa ntchito ma capacitor awiri molumikizana.
Kuteteza electrolytic capacitors
Nthawi zina ngakhale atagwiritsidwa ntchito nthawi yayitali electrolytic capacitor, nthawi zambiri amapezeka kuti electrolytic capacitor yasweka. Chifukwa chiyani? Ndipotu, n'kulakwa kuganiza kuti khalidwe la electrolytic capacitor sikokwanira.
Chifukwa tikudziwa kuti pa gridi yamagetsi yamagetsi a AC mumzindawu, nthawi zambiri pamakhala ma voteji okwera pompopompo chifukwa cha mphezi. Ngakhale njira zambiri zotetezera mphezi zakhala zikugwiritsidwa ntchito powombera mphezi pamagulu akuluakulu amagetsi, sizingatheke kuti padzakhala kutayikira kwaukonde kwa okhala Kunyumba.
Kwa zounikira za LED, ngati zimayendetsedwa ndi mains, muyenera kuwonjezera njira zotsutsana ndi kuphulika kwa ma mains input terminals mu mphamvu yamagetsi yamagetsi, kuphatikiza ma fuse ndi zopinga zodzitetezera ku overvoltage, zomwe zimatchedwa varistors. Tetezani zigawo zotsatirazi, apo ayi ma electrolytic capacitor a moyo wautali adzakhomeredwa ndi mphamvu yamagetsi.