Nhasi, nekukurumidza kukura kwe LEDs, ma LED ane simba guru ari kutora mukana wemaitiro.Parizvino, dambudziko guru rehunyanzvi rekuvhenekesa kwe-high-simba re LED kudzima kupisa.Kushata kwekupisa kupisa kunotungamira kune LED kutyaira simba uye electrolytic capacitors.Yakave ipfupi bhodhi yekuwedzera kuvandudzwa kwemwenje we LED.Chikonzero chekuchembera kusati kwasvika kwe LED mwenje sosi.
Muchirongwa chemwenje uchishandisa mwenje we LED sosi, nekuti mwenje we LED unoshanda mune yakaderera voltage (VF = 3.2V), yakakwirira ikozvino (IF = 300-700mA) inoshanda mamiriro, saka kupisa kwakanyanya.Nzvimbo yemarambi echinyakare yakamanikana, uye zvakaoma kuti radiator yenzvimbo diki itumire kunze kupisa nekukurumidza.Pasinei nekugamuchirwa kwezvirongwa zvakasiyana-siyana zvekutonhodza, zvigumisiro hazvina kugutsikana, zvinova mwenje wemwenje we LED dambudziko pasina mhinduro.
Parizvino, mushure mekunge chitubu chemwenje che LED chaiswa simba, 20% -30% yesimba remagetsi rinoshandurwa kuita simba rechiedza, uye inenge 70% yesimba remagetsi rinoshandurwa kuita simba rinopisa.Naizvozvo, ndiyo kiyi tekinoroji ye LED mwenje dhizaini dhizaini kuendesa kunze kwakawanda kupisa simba nekukurumidza sezvinobvira.Simba rekupisa rinoda kubviswa kuburikidza nekupisa conduction, kupisa convection uye kupisa mwaranzi.
Zvino ngationgororei kuti ndezvipi zvinhu zvinokonzeresa kuitika kweiyo LED tembiricha yejoinhi:
1. Kubudirira kwemukati kwezviviri hakuna kukwirira.Kana iyo erekitironi yasanganiswa negomba, iyo photon haigone kugadzirwa 100%, iyo inowanzo deredza mutakuri wekubatanidza chiyero chePN dunhu nekuda kwe "ikozvino kuvuza".Iyo leakage ikozvino nguva iyo voltage ndiro simba rechikamu ichi.Ndiko kuti, inoshandura kupisa, asi chikamu ichi hachigari chikamu chikuru, nokuti kushanda kwemukati photons kwatova pedyo ne90%.
2. Hapana imwe yemafotoni anogadzirwa mukati anogona kupfura kunze kwe chip, uye chikamu chechikonzero chikuru nei izvi zvinopedzisira zvashandurwa kuva simba rekupisa ndechekuti iyi, inonzi yekunze quantum performance, inongova 30% chete, iyo yakawanda inoshandurwa kuva. kupisa.
Naizvozvo, kupisa kupisa chinhu chakakosha chinokanganisa kusimba kwemwenje wemwenje we LED.Iyo inopisa sink inogona kugadzirisa dambudziko rekupisa kupisa kwemwenje-inovhenekera mwenje we LED, asi singi yekupisa haigone kugadzirisa dambudziko rekupisa kupisa kwemarambi ane simba guru.
LED kutonhora mhinduro:
Kupisa kwekupisa kweLed kunonyanya kutangira kubva pamativi maviri: kupisa kwekupisa kweLed chip pamberi uye shure kwepakeji uye kupisa kwekupisa kwemwenje weLed.Led chip heat dissipation inonyanya kuenderana neiyo substrate uye yedunhu sarudzo maitiro, nekuti chero LED inogona kugadzira mwenje, saka kupisa kunogadzirwa neiyo LED chip kunozopararira mumhepo kuburikidza nemwenje imba.Kana kupisa kusina kubviswa zvakanaka, simba rekupisa re LED chip richava diki, saka kana kumwe kupisa kwakaunganidzwa, tembiricha yekubatanidza yechip ichawedzera nekukurumidza, uye kana ikashanda pakupisa kwakanyanya kwenguva yakareba, hupenyu huchapfupiswa nekukurumidza.
Kazhinji kutaura, ma radiator anogona kupatsanurwa kuita kutonhora kunoshanda uye kutonhora kusingaite zvinoenderana nenzira iyo kupisa kunobviswa kubva kune radiator.Passive kupisa kupisa ndiko kudzima kupisa kweiyo inopisa sosi yemwenje sosi ye LED mumhepo kuburikidza nekupisa singi, uye kupisa kunopisa kunoenzanirana nekukura kwesink yekupisa.Kutonhodza kunoshanda ndiko kubvisa nechisimba kupisa kunobudiswa negetsi rinopisa kuburikidza nemudziyo wekutonhodza wakaita sefeni.Iyo inoratidzirwa nehukuru hwekupisa kupisa kupisa uye hukuru hudiki hwechishandiso.Kutonhora kunoshanda kunogona kukamurwa kuita kutonhora kwemhepo, kutonhora kwemvura, kupisa pombi kutonhora, semiconductor kutonhora, kutonhora kwemakemikari zvichingodaro.
Kazhinji, akajairwa mhepo-yakatonhodzwa radiators anofanirwa kusarudza simbi sechinhu cheradiator.Nokudaro, munhoroondo yekugadzirwa kwema radiator, zvinhu zvinotevera zvakaonekwa zvakare: yakachena aluminium radiators, yakachena mhangura radiators, uye mhangura-aluminium musanganiswa teknolojia.
Kunyatsojeka kwe LED kwakadzikira, saka tembiricha yakabatana yakakwira, zvichikonzera hupenyu hupfupi.Kuti uwedzere hupenyu uye kuderedza kutonhora kwekubatana, zvakakosha kubhadhara dambudziko rekupisa kupisa.