Parizvino, dambudziko guru rehunyanzvi reMwenje we LEDndiko kupisa kupisa. Kushata kwekupisa kupisa kwakatungamira kune LED kutyaira magetsi uye electrolytic capacitor kuve iyo pfupi bhodhi yekuwedzera kuvandudzwa kwemwenje we LED, uye chikonzero chekuchembera kusati kwasvika kwechiedza che LED sosi.

Muchirongwa chekuvhenekesa uchishandisa LV LED mwenje masosi, nekuda kweiyo LED mwenje sosi inoshanda pa low voltage (VF = 3.2V) uye yakakwirira ikozvino (IF = 300-700mA), chizvarwa chekupisa chakanyanya. Zvigadziriso zvemwenje zvechinyakare zvine nzvimbo shoma, uye madhishi madiki ekupisa anonetsa kukurumidza kutengesa kunze kunze kupisa. Pasinei nekutora zvirongwa zvekutonhodza zvakasiyana-siyana, mhedzisiro yacho haina kugutsa, ikava dambudziko risingagadzirisweZvigadzirwa zvemwenje zve LED. Isu tinogara tichiedza kuwana yakaderera-inodhura kupisa kupisa zvinhu zviri nyore kushandisa, zvine yakanaka thermal conductivity.

Parizvino, inenge 30% yemagetsi emagetsi emagetsi e LED anoshandurwa kuita simba rechiedza mushure mekushandiswa, asi mamwe ose anoshandurwa kuita simba rinopisa. Naizvozvo, kutumira kunze simba rakawanda rekupisa nekukasira ndiyo tekinoroji yakakosha mukugadzira dhizaini yemwenje we LED. Simba rekupisa rinoda kuparadzirwa kuburikidza nekupisa, convection, uye mwaranzi. Chete nekutumira kunze kunze kupisa nekukurumidza sezvinobvira kunogona kutonhora kwegomba mukati meMwenje we LEDkuve nekubudirira kuderedzwa, simba rekushandisa rinodzivirirwa kubva pakushanda munzvimbo yakareba-yepamusoro-yekushisa, uye kuchembera kusati kwasvika kwechiedza che LED chinokonzerwa nekushanda kwenguva refu kwekushisa kunodziviswa.

Nzira dzekubvisa kupisa kwezvigadziriso zvemwenje zve LED

Nekuda kwekuti magetsi emwenje e LED haana infrared kana ultraviolet mwaranzi, haana radiative kupisa dissipation basa. Iyo nzira yekupisa yekupisa yezvigadziriso zvemwenje zve LED inogona chete kutorwa kuburikidza nekupisa kunyura kwakanyatso kusanganiswa ne LED bead mahwendefa. Radiator inofanirwa kunge iine mabasa ekupisa conduction, kupisa convection, uye kupisa mwaranzi.

Chero radiator, kunze kwekukwanisa kukurumidza kuendesa kupisa kubva kune inopisa sosi kusvika pamusoro peiyo radiator, inonyanya kuvimba neiyo convection uye nemwaranzi kuti iparadze kupisa mumhepo. Heat conduction inongogadzirisa nzira yekupisa kupisa, nepo thermal convection ndiro basa guru reradiator. Kupisa kwekupisa kunonyanya kutariswa nenzvimbo yekupisa kupisa, chimiro, uye yakasikwa convection intensity, nepo kupisa kwemwaranzi kuchingori basa rekubatsira.

Kazhinji, kana chinhambwe kubva kunzvimbo yekupisa kusvika pamusoro peiyo radiator iri pasi pe5mm, chero bedzi thermal conductivity yechinhu ichipfuura 5, kupisa kwayo kunogona kutumirwa kunze kwenyika, uye kupisa kwasara kunofanira kutongwa nekupisa kwemafuta. .

Mazhinji magetsi emwenje e LED achiri kushandisa low voltage (VF = 3.2V) uye yakakwira ikozvino (IF = 200-700mA) mabheji e LED. Nekuda kwekupisa kwakanyanya panguva yekushanda, aluminium alloys ane high thermal conductivity inofanirwa kushandiswa. Kazhinji kune die-cast aluminium radiators, extruded aluminum radiators, uye akadhindwa aruminiyamu radiators. Die cast aluminium radiator tekinoroji yekukandira zvikamu, izvo zvinosanganisira kudururira mvura zinc copper aluminium alloy muchiteshi chekudya chemuchina wekukanda wekufa, wobva waikanda muforoma yakagadzirwa kare ine chimiro chakafanotemerwa.

Die cast aluminium radiator

Mutengo wekugadzira unodzoreka, uye bapiro rekupisa kupisa harigone kuitwa mutete, zvichiita kuti zviome kuwedzera nzvimbo yekupisa kupisa. Izvo zvinowanzo shandiswa die-casting zvinhu zve LED mwenje radiators ndeye ADC10 uye ADC12.

Yakawedzera aluminium radiator

Iyo aluminium yemvura inokwidziridzwa kuita chimiro kuburikidza neyakagadzika mold, uye ipapo bhawa inogadzirwa uye inochekwa kuita yaidiwa chimiro chekupisa kunyura, zvichikonzera mutengo wepamusoro wekugadzirisa mune inotevera nhanho. Iyo inopisa kupisa bapiro inogona kuitwa yakaonda kwazvo, nekuwedzera kwekuwedzera kwenzvimbo yekupisa kupisa. Kana bapiro rekupisa kupisa rikashanda, rinogadzira otomatiki convection yemhepo kuti iparadzire kupisa, uye kupisa kwekupisa kwakanaka. Zvinhu zvinowanzo shandiswa ndeye AL6061 uye AL6063.

Yakadhindwa aluminium radiator

Ndiyo maitiro ekutsika nekusimudza simbi nealuminium alloy mahwendefa kuburikidza ne punch uye mold kugadzira kapu yakaita reyedhita. Iyo radiator yakadhindwa ine yakatsetseka yemukati uye yekunze denderedzwa, uye nzvimbo yekupisa kupisa inogumira nekuda kwekushaikwa kwemapapiro. Iyo inowanzoshandiswa aruminiyamu alloy zvinhu 5052, 6061, uye 6063. Zvidhindo zvikamu zvine hutsika hwakaderera uye kushandiswa kwezvinhu zvakakwirira, zvichiita kuti zvive mhinduro inodhura.

Iyo yekupisa conductivity yealuminium alloy radiators yakanaka uye yakakodzera kune yakasarudzika chinja inogara iripo magetsi magetsi. Kune asiri ega ega switch anogara aripo emagetsi emagetsi, zvinodikanwa kupatsanura AC neDC, yakakwira-voltage uye yakaderera-voltage magetsi kuburikidza nedhizaini dhizaini yezvigadziriso zvemwenje kuti upfuure CE kana UL certification.

Plastic yakavharwa aluminium radiator

Iyo sink yekupisa ine thermal conductive plastiki shell uye aluminum core. Iyo yekupisa inopisa purasitiki uye aruminiyamu kupisa disipation musimboti inoumbwa mune imwe kuenda pamushini wekuumba jekiseni, uye iyo aluminium inopisa kupisa musimboti inoshandiswa sechikamu chakamisikidzwa chinoda pre mechanical processing. Kupisa kwemarambi emwenje e LED kunokurumidza kuendeswa kune thermal conductive epurasitiki kuburikidza nealuminium kupisa kupisa musimboti. Thermal conductive plastic inoshandisa mapapiro ayo akawanda kugadzira air convection heat dissipation, uye inoshandisa nzvimbo yayo kupenya kumwe kupisa.

Plastic yakavharwa aluminium radiators inowanzo shandisa iwo epakutanga mavara eanopisa conductive epurasitiki, chena uye dema. Mapurasitiki epurasitiki matema epurasitiki akavharwa nearuminiyamu radiators ane mwaranzi ari nani uye kupisa kupisa mhedzisiro. Thermal conductive plastiki imhando ye thermoplastic zvinhu. Iyo fluidity, density, kuoma uye kusimba kwechinhu zviri nyore kuumbwa jekiseni. Iyo ine kumira kwakanaka kune inotonhora uye inopisa kuvhunduka kutenderera uye yakanakisa insulation kuita. Iyo radiation coefficient ye thermal conductive plastic inopfuura iyo yezvakajairika simbi zvinhu

Kuwanda kwepurasitiki inodziya inodzika yakaderera ne40% pane iyo die-cast aluminium uye ceramics, uye kune ma radiator echimiro chimwe chete, huremu hwepurasitiki yakavharwa aluminium inogona kuderedzwa neinenge chikamu chimwe muzvitatu; Kuenzaniswa nearuminiyamu radiators ese, mutengo wekugadzirisa wakaderera, kutenderera kwekugadzirisa kupfupi, uye tembiricha yekugadzira yakaderera; Chigadzirwa chakapedzwa hachina kusimba; Mutengi wega jekiseni rekuumba muchina unogona kushandiswa kusiyanisa dhizaini yekugadzira uye kugadzirwa kwezvigadziriso zvemwenje. Iyo purasitiki yakavharwa aluminium radiator ine yakanaka yekuisa mashandiro uye iri nyore kupfuudza kuchengetedza mitemo.

High thermal conductivity epurasitiki radiator

High thermal conductivity epurasitiki radiators akagadzirwa nekukurumidza munguva pfupi yapfuura. High thermal conductivity epurasitiki radiators ese epurasitiki radiators, ane thermal conductivity makumi akati wandei epamusoro kupfuura mapurasitiki akajairwa, anosvika 2-9w/mk, uye yakanakisa kupisa kupisa uye kugona kwemwaranzi; Rudzi rutsva rwekudzivirira uye kupisa kupisa zvinhu zvinogona kuiswa kune akasiyana mwenje magetsi, uye inogona kushandiswa zvakanyanya mumhando dzakasiyana dzemwenje dze LED kubva pa1W kusvika 200W.

Iyo yakakwira yekupisa yekupisa purasitiki inokwanisa kumira voltage kusvika ku6000V AC, ichiita kuti ive yakakodzera kushandisa isina kuparadzanisa switch inogara iripo magetsi emagetsi uye yakakwira-voltage linear inogara iripo magetsi emagetsi neHVLED. Ita kuti rudzi urwu rwemagetsi ekuvhenekesa kuve nyore kupfuudza mitemo yekuchengetedza yakasimba yakadai seCE, TUV, UL, etc. HVLED inoshanda pamhepo yakakwirira (VF=35-280VDC) uye yakaderera ikozvino (IF=20-60mA), iyo inoderedza kupisa. yeHVLED bead plate. High thermal conductivity epurasitiki radiators inogona kushandiswa neyechinyakare jekiseni molding uye extrusion michina.

Kana yangoumbwa, chigadzirwa chakapedzwa chine hunyoro hwepamusoro. Zvinonyanya kuvandudza kugadzirwa, nekuchinjika kwepamusoro mukugadzirwa kwesitayera, inogona kukwirisa zvizere huzivi hwekugadzira yemugadziri. Iyo yakakwira yekupisa yekupisa yepurasitiki radiator inogadzirwa nePLA (chibage starch) polymerization, inoshatisa zvizere, yakasara isina, uye isina kusvibiswa kwemakemikari. Iyo nzira yekugadzira haina kusvibiswa kwesimbi inorema, haina tsvina, uye haina gasi rekubuda, rinosangana nezvinodiwa zvepasi rose.

Iyo PLA mamorekuru mukati meyakakwira yekupisa yekupisa epurasitiki kupisa kupisa muviri yakazara yakazara neanoscale simbi ions, iyo inogona kukurumidza kufamba pakupisa kwakanyanya uye kuwedzera kupisa kwemwaranzi simba. Hunhu hwayo hwakakwirira kune hwesimbi zvinhu zvinopisa kupisa mitumbi. Iyo yakakwira yekupisa conductivity yepurasitiki radiator inoshingirira kune tembiricha yakakwira, uye haiputsi kana kukanganisa kwemaawa mashanu pa150 ℃. Nekushandiswa kweiyo high-voltage linear inogara iripo IC drive scheme, haidi electrolytic capacitor uye yakakura inductance, inovandudza zvakanyanya hupenyu hwemwenje we LED. Iyo isiri yega yega yekugovera magetsi chirongwa ine yakanyanya kushanda uye yakaderera mutengo. Kunyanya kukodzera kushandiswa kwefluorescent tubes uye yakakwirira-simba maindasitiri uye marambi emigodhi.

High thermal conductivity epurasitiki radiators inogona kugadzirwa ine yakawanda chaiyo yekupisa kupisa zvimbi, izvo zvinogona kuitwa zvakatetepa zvakanyanya uye kuva nekuwedzera kwekuwedzera kwenzvimbo yekupisa kupisa. Kana zvimbi zvekupisa zvinopisa zvichishanda, zvinogadzira otomatiki convection yemhepo kuparadzira kupisa, zvichikonzera kunaka kwekupisa kupisa. Kupisa kwemwenje we LED bead kunotamirwa zvakananga kune kupisa kwekudziya bapiro kuburikidza nepamusoro pepurasitiki yekupisa conductivity, uye nekukurumidza kuparara kuburikidza nemhepo convection uye pamusoro nemwaranzi.

High thermal conductivity epurasitiki radiators ane kureruka density kupfuura aruminiyamu. Density yealuminium i2700kg/m3, ukuwo density yepurasitiki iri 1420kg/m3, inenge hafu yealuminium. Naizvozvo, kune ma radiator echimiro chimwe chete, huremu hwemasadhiyadhi epurasitiki ndeye 1/2 chete yealuminium. Uyezve, kugadzirisa kuri nyore, uye kutenderera kwayo kwekugadzira kunogona kupfupikiswa ne20-50%, iyo inoderedzawo simba rekutyaira remitengo.