Pali mitundu yosiyanasiyana ya mizere ya LED, iliyonse ili ndi mawonekedwe ake. M'nkhaniyi, tikambirana za mzere wowala kwambiri wa LED pamsika.
Kodi mzere wowala kwambiri wa LED pamsika ndi uti?
Ndiwowala kwambiri wa SMD2835 LED mizere, 9LEDs pa kudula, CRI> 80, kuposa 220LM/W, ndipo mphamvu imatha kupitirira 20W/M. Amagwiritsa ntchito kuwala kwakukulu kwa SMD2835 LED yokhala ndi chip chachikulu, mkuwa wangwiro 3OZ kapena 4OZ PCB.
Kuwala kwa mizere ya LED kumatsimikiziridwa ndi lumens.
Lumens = Kutulutsa Kuwala. M'mawu osavuta, Lumens (otchulidwa ndi lm) ndi muyeso wa kuchuluka kwa kuwala kowonekera (kumaso a munthu) kuchokera ku nyali kapena gwero la kuwala.
Zinthu zomwe zimakhudza kuwala kwa mizere ya LED.
Zinthu ziwiri zazikulu zimakhudza ma lumens a mizere ya LED, kuwala (lm / w) ndi mphamvu (w / m). Monga tikudziwira, ma lumens a chingwe cha LED ndi ofanana ndi kuwala kochuluka kochulukitsidwa ndi mphamvu.
Kuwala Mwachangu
Kuwala kowala ndi muyeso wa momwe gwero la kuwala limapangira bwino kuwala kowoneka. Ndilo chiŵerengero cha kuwala kowala ku mphamvu, kuyeza mu lumens pa watt (lm/w).
Zinthu zazikulu zomwe zimakhudza mphamvu ya kuwala ndi izi:
Kukula kwa Chip LED
Mikanda ya nyale za LED ndi mbali zotulutsa kuwala, ndipo zigawo zake zazikulu ndi tchipisi, mabaraketi, ndi mawaya agolide olumikiza tchipisi ndi mabaketi. Chigawo chomwe chimatha kutulutsa kuwala ndi chip. Chifukwa chake, kukula kwa chip kumatsimikizira kuwala kowala kwa mikanda ya nyali ya LED. Kukula kwa chip kumapangitsanso kuwala kwa mikanda ya nyale ya LED. Pali mafakitale amikanda ya nyale pamsika. Kupititsa patsogolo kuwala kowala komanso kudalirika kwa mikanda ya nyali ya SMD2835 ya LED, tchipisi ziwiri zimayikidwa mu bulaketi.
CRI
A mtundu wopereka index (CRI) ndi muyeso wochulukira wa kuthekera kwa gwero lowunikira kuwulula mitundu ya zinthu zosiyanasiyana mokhulupirika poyerekeza ndi gwero lachilengedwe kapena lodziwika bwino.
CRI ndiyonso yofunika kwambiri pozindikira kuwala kowala. Kukwera kwa CRI, kumachepetsa mphamvu yowala.
Ngati mukufuna kudziwa zambiri, chonde werengani Chifukwa chiyani CRI yapamwamba imakhala yocheperako nthawi zonse.
CCT
Kutentha kwamtundu (Correlated Colour Temperature, kapena CCT, in lighting tech jargon) kwenikweni ndi chiyeso cha chikasu kapena buluu mtundu wa kuwala kochokera kugwero lounikira. Amayezedwa mugawo la Kelvin ndipo amapezeka kwambiri pakati pa madigiri 2200 a Kelvin ndi madigiri 6500 a Kelvin.
Kawirikawiri, CCT yapamwamba kwambiri, kuwala kwapamwamba kwambiri. Mwachitsanzo, pamtundu womwewo wa nyali ya LED, kuwala kowala kwa 6000K ndikokwera kuposa kwa 2700K.
mphamvu
Pamene kuwala kwachangu kuli kotsimikizika, mphamvuyo ikukwera, lumen imakwera.
Choncho, ngati tikufuna kuwala kwakukulu, tiyenera kuwonjezera mphamvu.
Mphamvu ya chingwe cha LED imakhudzidwa makamaka ndi izi:
Kuchulukitsitsa kwa LED
Nyali imodzi yokha ya LED imakhala ndi malire apamwamba. Mwachitsanzo, SMD2835 wamba ndi 60mA, ndipo SMD3528 ndi 20mA. Ngati tikufuna kuwonjezera mphamvu ya chingwe cha LED, tifunika kuwonjezera kuchuluka kwa mikanda ya nyali ya LED.
Zindikirani: Kuti apulumutse ndalama, opanga ena amapanga timizere ta LED tokhala ndi mphamvu yapano yomwe imaposa kuchuluka kwa mikanda ya nyale ya LED. Komabe, chingwe cha LEDchi chikagwira ntchito, kutentha kumakhala koopsa, ndipo pakapita nthawi, kuwalako kumacheperachepera.
PCB
PCB ndi gawo lina lofunikira. Ntchito yake yayikulu ndikulumikiza zigawo monga mikanda ya nyali ya LED ndi zopinga.
Chigawo chachikulu cha PCB ndi mkuwa, ndipo kuchuluka kwa mkuwa kumatsimikizira madulidwe a PCB. Mkuwa wokhuthala, wotambasula ukhoza kudutsa kwambiri ndipo umatulutsa kutentha kochepa.
Ma PCB angathandizenso kutulutsa kutentha mwachangu. Kutentha ndikofunikira kwambiri ku moyo wa LED, ndipo kutentha kwakukulu kumatha kuchepetsa moyo wa LED.
Choncho, kuonjezera mphamvu ya Mzere LED, tiyenera kusankha PCB ndi wandiweyani ndi lonse mkuwa koyera.
Mbiri ya Aluminium
Mphamvu zambiri zimatanthauza kutentha kwambiri. Komabe, ngati kutentha sikutayika mu nthawi, kumachepetsa moyo wa LED. Imodzi mwa njira zodziwika bwino zothandizira kutulutsa kutentha mwachangu ndikulumikiza zingwe za LED mbiri ya aluminiyamu.
Ibibazo
Kutsiliza
Kuti tipeze chowala chapamwamba cha LED, titha kuganizira mbali ziwiri zowongolera luso lowala ndi kuwonjezera mwayi.
LEDYi amapanga apamwamba kwambiri Mizere ya LED ndi neon flex ya LED. Zogulitsa zathu zonse zimadutsa m'ma laboratories apamwamba kwambiri kuti zitsimikizire kuti zili bwino kwambiri. Kupatula apo, timapereka zosankha makonda pamizere yathu ya LED ndi neon flex. Chifukwa chake, pamzere wapamwamba wa LED ndi LED neon flex, kulumikizana ndi LEDYi POSACHEDWA!
