Ukushisa ngokugqithiseleyo kwee-LED kuchaphazela kakubi ukusebenza kunye nokuqina kwe-fixture. Ngoko ke, ukuqinisekisa ukusebenza kakuhle kwe-LED kunye nenkqubo yokulawula ukushisa, ukufakela okufanelekileyo kwe-heat sink kuyimfuneko. Kodwa yintoni i-heat sink, kwaye kutheni ibaluleke kakhulu kwii-LEDs? 

I-heat sink sisixhobo esichitha ubushushu kude nomthombo wokukhanya kwe-LED. Ikhusela ukufudumala kwaye ikhusela ukukhanya kumonakalo. Ngaloo ndlela, iyakwandisa ixesha lokuphila kwayo nayiphi na i-LED.

Nangona kunjalo, kukho iintlobo ezahlukeneyo zeesinki zokushisa ze-LED. Kodwa akukho nkxalabo malunga nokukhetha okulungileyo, njengoko eli nqaku liza kukunceda! Ke, ukufumana umbono opheleleyo malunga neesinki zobushushu ze-LED, masiqale ingxoxo-

Yintoni i-LED yokushisa iSink?

An Ubushushu be-LED sisixhobo esithatha ubushushu obuveliswe kwimodyuli ye-LED kwaye siyidlulisele emoyeni ojikelezayo. Inceda ekulawuleni ubushushu bee-LED kwaye igweme ubushushu. Yiyo loo nto isinki sobushushu be-LED sibalulekile kuyo nayiphi na inkqubo yokukhanyisa i-LED.

Isitya sokufudumala senziwe nge-aluminiyam okanye ezinye izinto ezihambisa ubushushu. Ibonisa uthotho lwee-fins kunye ne-ridges ezonyusa indawo yayo ephezulu yokusasazwa kobushushu. Lo mmandla mkhulu womhlaba uvumela ubushushu ukuba buchitheke ngokufanelekileyo. Ubushushu be-LED buthatha ubushushu obuvela kwi-LED kwaye budlulisele emoyeni. Le nkqubo igcina i-LED ipholile kwaye isebenza ngokugqibeleleyo.

Kutheni le nto i-LED yokushisa i-Sink ibalulekile?

I-LED Heat Sink iqinisekisa ukusebenza ngokufanelekileyo kunye nokuphila ixesha elide izibane LED. Kwaye izibane ze-LED zikhupha ukukhanya ngokusebenzisa inkqubo ye-electroluminescence. Kwakhona, oku kuvelisa ubushushu njengemveliso ephuma kwimveliso. Lo bushushu bunokubangela umonakalo kumacandelo angaphakathi okukhanya kwe-LED. Kwakhona kunciphisa ukusebenza kwayo kunye nobomi. Apha, i-LED Heat Sink isebenza njengesixhobo sokupholisa, ukukhupha ubushushu obuveliswa kukukhanya kwe-LED. Ngaloo ndlela, igcina amacandelo angaphakathi kwiqondo lokushisa elikhuselekileyo.

I-Heat Sink ye-LED yenzelwe izixhobo eziphezulu ze-thermal conductivity ezifana ne-aluminium. Kwaye izinto ezinjalo zifunxa kwaye zichithe ukushisa ngokukhawuleza nangokufanelekileyo. Kananjalo inomhlaba omkhulu ovumela ukutshatyalaliswa kobushushu obukhulu. Ngoko ke, ukufudumala kunokubangela ukuba ukukhanya kwe-LED kugqithise kwaye kube yingozi yomlilo. Ngoko ke, kubalulekile ukuba kubekho isinki yobushushu esebenzayo endaweni.

Isebenza njani i-LED Heat Sink?

Isinki sobushushu se-LED sibhekisa kwinkqubo yokususa ubushushu kumthombo wokukhanya we-LED ngokusebenzisa isitya sobushushu. Le nkqubo yenzeka ngokwezigaba ezininzi:

• Isizukulwana sobushushu

Xa umthombo wokukhanya we-LED unikwe amandla, uvelisa ubushushu njengemveliso yokukhutshwa kokukhanya.

• Ukudluliselwa kobushushu

Ubushushu obuveliswayo bugqithiselwa kwi-chip ye-LED ukuya kwibhodi yesekethe eprintiweyo yentsimbi (MCPCB) okanye i-heat sink.

• Ukutshatyalaliswa kobushushu

I-heat sink yibhuloho ye-thermal phakathi kwe-chip ye-LED kunye nokusingqongileyo. Ihambisa ubushushu kude kwi-chip ye-LED kunye nomoya. Kwakhona, i-heat sink inommandla omkhulu, inika indawo eyaneleyo yokuchitha ubushushu.

• Ukusasazeka kobushushu

Isitha sobushushu sisasaza ubushushu kwindawo engqongileyo ngendibaniselwano yokuhambisa kunye nokuqhuba. Ubushushu buhamba ukusuka kumphezulu oshushu we-heat sink ukuya kumoya opholileyo. Yenza umahluko wobushushu oqhuba ubushushu kude ne-chip ye-LED.

• Ukupholisa kwe-LED

Ubushushu be-chip ye-LED buyancipha njengoko ubushushu buphuma, buthintela ukufudumeza. Ivumela ii-LEDs ukuba zisebenze kwiqondo lokushisa elikhuselekileyo nelisebenzayo. I-heat sink iphinda incede ukukhusela umonakalo kwi-chip ye-LED, enokuthi ibangelwe kukunyuka kobushushu obugqithisileyo.

Iindidi ze-LED ze-Heat Sinks

Kukho iintlobo ezininzi zeesinki zobushushu ze-LED ezikhoyo, kubandakanya imodeli esebenzayo, esebenzayo, kunye nendibaniselwano:

1. Ubushushu obuSebenzayo obuSebenzayo

I-LED esebenzayo yokushisa i-heater luhlobo lwe-heat sink esebenzisa i-fan okanye ezinye iindlela zoomatshini. Basusa ngenkuthalo ubushushu kwisixhobo se-light-emitting diode (LED). Kwaye oku kunceda ukwandisa ukusebenza kunye nokuphila ixesha elide kwe-LED. Iphinde ithintele ukushisa kakhulu kwaye yandise ubomi be-LED. Ke, ngenxa yezi zizathu, iisinki zobushushu ze-LED ezisebenzayo zihlala zisetyenziswa kwizicelo ezinamandla kakhulu ze-LED. 

2. Ukuntywila kobushushu bodwa

Iisinki zokushisa ze-LED ze-Passive zenzelwe ukutshabalalisa ubushushu obuveliswa zizibane ze-LED ngaphandle kokusebenzisa naziphi na iifeni okanye ezinye iinkqubo zokupholisa ezisebenzayo. Bathembele kwi-thermal conduction. I-pantyant ye-heat sink ikwaxhomekeke kwi-convection kunye nemitha yokuhambisa ubushushu ukusuka kumthombo wokukhanya kwe-LED. Basasaza ubushushu kwindawo engqongileyo.

Ezi zitshi zobushushu zenziwe nge-aluminiyam. Ziyakwazi nokuba yimpahla ene-conductivity ephezulu ye-thermal. Ngaphezu koko, zibandakanya amaphiko kunye nezinye izakhiwo. Yandisa indawo engaphezulu ekhoyo yokuhanjiswa kobushushu.

Ukongeza, iisinki zokushisa ze-LED zihlala zihlala zihleli kwaye zifuna ukulungiswa okuphantsi. Zihlala zisetyenziswa xa kukhanyisa amanqanaba engxolo ephantsi. Unokuzisebenzisa kwakhona ubomi babo obude kunye neendleko zokusebenza eziphantsi. Ngaphandle koko, ziyakwazi ukumelana nemozulu kunye neemeko zokusingqongileyo. Ke, ezi mpawu zibenza babe ngcono kwizibane zangaphandle.

3. IiSinki zoBushushu eziHybrid

I-Hybrid LED i-heater sinks zixhobo zokulawula ukushisa. Badibanisa izixhobo zentsimbi yesiko lokutshisa ubushushu kunye nezinto ezongezelelweyo- imibhobho yobushushu, amagumbi omphunga, okanye izinto zokutshintsha isigaba. Kwaye ukufakwa kwezi zixhobo ezongezelelweyo kuphucula amandla okutshatyalaliswa kobushushu kwiinkqubo zokukhanyisa i-LED. I-hybrid ye-LED ye-heat sink ijolise ekususeni ngokufanelekileyo ubushushu obuveliswa yi-chips ze-LED, ukukhusela umonakalo wokushisa. Bakwaphucula ukusebenza kunye nobude benkqubo ye-LED.

4. Amacwecwe Abandayo

Iipleyiti ezibandayo ziinkqubo zokupholisa ezilungiselelwe izibane ze-LED. Bachitha ubushushu obuveliswa zii-LED kwaye bagcine amanqanaba aphezulu obushushu. Ezi zenziwe nge-aluminiyam kunye nobhedu. Isenokuba yindibaniselwano yazo zombini. Basebenza ngokuhambisa ubushushu kude ne-LED. Emva koko usasaza ubushushu emoyeni ojikelezileyo. Ukongeza, ezi zinto zikhaphukhaphu, ziyasebenza kwaye ziyonga imali.

5. Iphini-Fin IiSinki zobushushu

I-Pin-fin i-LED ye-heater sinks yenziwe ngesiseko sentsimbi enezikhonkwane ezininzi eziphuma phezulu. Oku kwandisa indawo ephezulu kunye nokukhuthaza ukuchithwa kobushushu obungcono. Uyilo lwe-pin-fin lusebenza kakhulu ekukhupheni ubushushu kumthombo wokukhanya kwe-LED. Inceda ukugcina ubushushu be-LED. Ngaloo ndlela, ilawula umonakalo kwaye iphucula ukusebenza. Kwakhona, ezi zithandwa kwizicelo ezifana nobukhulu obuphezulu kunye nokukhanya okuhlala ixesha elide. Oku kunokubandakanya ukukhanyiswa kwesitalato, ukukhanyiswa kwemizi-mveliso, kunye nezibane zemoto.

6. IiSinki zobushushu zePlate-Fin

I-Plate-fin i-LED heat sinks iquka i-base plate, i-fins series, kunye ne-heat dissipation surface. Isiseko sepleyiti senziwe ngesixhobo esine-thermal conductive kakhulu. Banikezela ngeqonga lokuxhoma elikhuselekileyo lomthombo wokukhanya we-LED. Iifins zibekwe phezu kweplate yesiseko kwaye zibonelela ngommandla omkhulu wokutshatyalaliswa kobushushu. Umphezulu wokulahla ubushushu ngokuqhelekileyo wenziwe nge-aluminiyam. Inceda ukutsala ubushushu kude ne-LED kunye nomoya ojikelezayo.

I-Plate-fin iisinki zokushisa ze-LED zithandwa kwizicelo zokukhanyisa. Ngenxa yokuba zikhaphukhaphu, zineprofayili yoyilo olusezantsi, kwaye kulula ukuzifaka. Kananjalo banentsebenzo ephezulu ye-thermal kwaye banendleko-esebenzayo. Olu hlobo lokufudumala lufanelekile kwizicelo zokushisa-umzekelo, ukukhanya kweemoto kunye nokukhanya kwezoshishino. 

7. IiSinki zoBubushushu obugqithisiweyo

Ukushisa okugqithisiweyo kwe-LED kuchitha ubushushu obuvela kwi-LED (i-light-emitting diode) izibane zokukhanyisa. Zenziwa ngokukhupha i-aluminiyam kwimilo ethile kunye nobukhulu. Yenza isakhiwo esincinciweyo esonyusa indawo engaphezulu yokutshatyalaliswa kobushushu. I-heat sink ifakwe kwi-LED fixture. Oku kunceda ukugcina i-LED ipholile kwaye kwandisa ubomi bayo. Ngoko ke, ukuyila kwabo kuvumela isisombululo esineendleko kunye nesinokwenziwa ngokwezifiso. Lukhetho oludumileyo lokukhanya kwezorhwebo kunye neshishini.

8. IBonded Fin Heat sinks

I-Bonded fin Iisinki zobushushu ze-LED zibandakanya isiseko semathiriyeli kunye namaphiko. Zihlanganiswe kunye zisebenzisa i-adhesive ephezulu yamandla. Le nkqubo yokudibanisa inceda ekuphuculeni ukuhanjiswa kobushushu kunye nokunciphisa ukuxhathisa ukushisa. 

Iifins zenzelwe ukwandisa indawo engaphezulu ye-heat sink. Ivumela ubushushu obuninzi ukuba buchitheke emoyeni. Ngaphaya koko, oku kunceda ukugcina izibane ze-LED zipholile. Ngaphezu koko, kuyanceda ukwandisa ubomi babo kunye nokugcina ukusebenza kwabo. I-Bonded fin heat sinks zenziwe nge-aluminiyam okanye ubhedu. Zisetyenziswa kwizibane zasezitalatweni, kwizibane zangaphakathi, kunye neenkqubo zokukhanyisa ezimotweni.

9. IiSinki Zobushushu Ezigotyiweyo

I-Folded Fin Iisinki zokushisa ze-LED yinkqubo yokupholisa esetyenziswa kwizibane ze-LED. Zenziwe ngamaphiko entsimbi acekethekileyo agobileyo adityaniswe kunye. Idala indawo enkulu yokutshatyalaliswa kobushushu. Olu luyilo luvumela isisombululo sokupholisa esidibeneyo nesisebenzayo. Oku kulungele ukusetyenziswa kwizibane ezincinci ze-LED. Uyilo olusongekileyo lukwavumela ukuhamba komoya okulungileyo. Inceda ukutshabalalisa ubushushu ngokukhawuleza nangokufanelekileyo.

10. I-Z-Clip Retainer Heat sinks

I-Z-Clip Retainer iisinki zobushushu ze-LED ziyilwe kunye nekliphu enemilo engu-Z. Incamathela kwisibane se-LED kwaye ibambe i-heat sink endaweni. Oku kuvumela ukutshatyalaliswa kobushushu ngokufanelekileyo. Banceda ukugcina isibane se-LED sisebenza kumaqondo obushushu afanelekileyo kwaye sandise ubomi baso. Iisinki zobushushu be-LED ziza neenkqubo ezakhelwe ngaphakathi zokugcina ukukhanya kwe-LED. Ikhusela ukukhanya kwe-LED ekuphumeni kwaye iphucula ukhuseleko.

Iintlobo zeMathiriyeli yeSinki yoBushushu

Iisinki zobushushu ziza kwizinto ezahlukeneyo, kubandakanya ialuminiyam, ubhedu, kunye nepolymer.

1. IiSinki zobushushu zeAluminiyam 

I-Aluminiyam ye-LED ye-heater sink ekhethiweyo yokupholisa iinkqubo zokukhanyisa i-LED. Banikezela ngezibonelelo ezininzi eziphambili, ezinje ngexabiso eliphantsi, ulwakhiwo olukhaphukhaphu, kunye nokusebenza kakuhle kwe-thermal. I-Aluminiyam ye-LED ye-heater sinks iphinda ikhuphe ubushushu ngokukhawuleza. Oku kwenza inkqubo isebenze kumaqondo obushushu asezantsi kwaye iphucule ukusebenza kakuhle. Ukongeza, i-aluminiyam yinto eyomeleleyo kwaye ihlala ixesha elide. Ngaloo ndlela inokumelana neemeko zokusingqongileyo ezinzima.

2. IiSinki zoBubushushu bobhedu

IiSinki ze-Copper ze-LED zisebenza kakuhle ekukhupheni ubushushu. Banciphisa umngcipheko wokushisa kunye nomonakalo kwii-LEDs. I-Copper nayo ine-conductivity ephezulu ye-thermal. Ivumela ukushisa ukuba kudluliselwe ngokukhawuleza kude ne-LED. Oku kunceda ukugcina ukusebenza okuphezulu ngexesha elide. Ukongeza, ubhedu lukhaphukhaphu kwaye alunyangeki kwi-corrosion. Oku kuyenza ibe yeyona ndlela ifanelekileyo yezicelo zamashishini.

3. IiSinki zobushushu bePolymer

Ii-Polymer LED Heat Sinks zinokubonelela ngokuphuculwa kobushushu. Inokubonelela ngokusebenzayo okwandisiweyo kunye nobomi obude beemveliso ze-LED. Uyilo olukhethekileyo lwepolymer ye-heat sink inokususa ubushushu ngokukhawuleza kunoyilo lwentsimbi yesiko. Oku kunceda ukunciphisa umngcipheko wokungaphumeleli kwe-LED ngenxa yemicimbi yolawulo lwe-thermal. Ii-LED zePolymer nazo zifuna amandla amancinci ukuze ziqhube. Oku kubenza bangabizi kakhulu kwaye basebenzise amandla.

Ngaphaya koko, iimveliso ze-LED ezinezitshi zobushushu zepolymer zinobomi obude kunezo zingenayo. Oku kunokunceda amashishini anciphise iindleko zawo zokulondoloza. Kwakhona kuphucula ixesha elide lotyalo-mali lwabo ekukhanyeni kwe-LED.

Izinto zeSinki yoBubushushu: iAluminiyam vs. Ubhedu – Yeyiphi eNgcono?

I-aluminiyam kunye nobhedu zombini zineenzuzo kunye neengxaki zazo. Ngoko ke kubalulekile ukuqonda ukungafani kwabo ukwenza isigqibo esinolwazi.

I-Aluminiyam ine-thermal conductivity ephantsi kunobhedu, oku kuthetha ukuba kuthatha ixesha elide ukuba ubushushu buhambe kuyo. Kwelinye icala, i-aluminiyam ikhaphukhaphu kakhulu kunobhedu kwaye inobulungisa obuphezulu bolwakhiwo.

Ngaphandle koko, ubhedu lune-thermal conductivity engcono kune-aluminium. Oku kuyenza ibe lukhetho olungcono kwizicelo ezidinga olona tshintsho lusebenzayo lobushushu. Ukongezelela, ubhedu aludli njengoko lusenza ialuminiyam. 

Ekugqibeleni, yeyiphi imathiriyeli engcono ixhomekeke kwiimfuno ezithile zesicelo. Ukukhanyisa kwamashishini kunye nokukhanyisa kweemoto, ubhedu luya kuba lungcono. Kwelinye icala, i-aluminiyam lukhetho olugqibeleleyo lokukhanya kwezakhiwo.

Iingqwalasela zoYilo lweSinki yobushushu

Ukuyila isitya sokufudumala kufuna ingqalelo yezinto ezininzi. Ezi zezi zilandelayo-

• Uhlobo lweeSinki zoBushushu

Uhlobo lobushushu bokushisa lunempembelelo ebalulekileyo kwiingcamango jikelele. Iisinki zePassive sinks ezinobushushu obunomphezulu omkhulu okanye amaphiko. Zenzelwe ukutshabalalisa ubushushu ngokusebenzisa i-convection okanye i-radiation. Iisinki ezisebenzayo ziifeni okanye iinkqubo zokupholisa ulwelo. Basebenza ngokushukumisa umoya okanye ulwelo ukususa ubushushu kumthombo. 

Ngenxa yoko, uhlobo ngalunye lwesinki luneengenelo zalo kunye nezinto eziluqwalaselayo. Umzekelo, iisinki ezisebenzayo zinokufuna amandla ongezelelweyo ukuze zisebenze. Kwaye inokuba nomsindo kunezitsini ezingenzi nto. Ngoko ke, ukuqwalaselwa ngenyameko kuyimfuneko kwiindidi ezahlukeneyo zeesinki.

• Izinto zeSinki yoBubushushu

Ukukhethwa kwe-heat sink kuya kugqiba ukusebenza kunye nokusebenza kolawulo lokufudumala. Ekubeni uhlobo ngalunye lwezinto eziphathekayo luneempawu ezahlukeneyo ze-thermal.

Iintlobo ezisetyenziswa ngokuqhelekileyo ziyi-aluminium kunye nobhedu. Ngaphandle koko, bobabini bane-conductivity entle ye-thermal. Bakwanayo nommandla omkhulu wokuchitha ubushushu. Ukunyamezela ukushisa okuphezulu, ezinye izinto zingadinga i-ceramic okanye igraphite. Ukongeza, kufuneka uqwalasele imilo ye-heat sink kunye nobukhulu. Oku kuqinisekisa ukusebenza ngokugqibeleleyo kwaye ingena nakweyiphi na imiqobo yendawo.

• Uyilo lwemida

Uyilo lomda luchaphazela umthamo wokupholisa wenkqubo, ixabiso, kunye nokusebenza kakuhle ngokupheleleyo. Abaqulunqi banokwandisa ukusebenza kwe-thermal yenkqubo. Kwakhona, imilo kunye nobukhulu besitya sokufudumala sichaphazela ukuhamba komoya, ukuhanjiswa, kunye nokuqhuba. Uyilo lweMida lukwachaphazela indawo engaphezulu ekhoyo yokutshatyalaliswa kobushushu. Isitya sokushisa esilungiselelwe kakuhle siya kuba nommandla owaneleyo. Iya kuchitha ubushushu obuveliswayo ngokufanelekileyo ngelixa unciphisa iindleko zizonke.

Ii-MCPCBs: Inceda Njani iSinki yoBubushushu be-LED? 

Ii-MCCBs zi-metal-core iibhodi zesekethe eziprintiweyo. Zenzelwe ukutshabalalisa ubushushu be-LED kude nomthombo wokukhanya ngokufanelekileyo. Undoqo wesinyithi we-MCPCB usebenza njengebhulorho ye-thermal. Oku kuvumela ubushushu ukuba buphele ukusuka kwi-LED ukuya kwi-heat sink. 

Itekhnoloji ye-MCPCB ithatha ithuba lokuba isinyithi sine-conductivity ephezulu kakhulu ye-thermal kune-FR4 (i-fiberglass-reinforced epoxy). Ngaloo ndlela, ihambisa ngokufanelekileyo ubushushu kude kwii-LEDs. Isiseko sesinyithi sikwabonelela ngokuzinza kwesakhiwo. Iphucula uxhulumaniso lombane, iyenze ibe sisisombululo esifanelekileyo kwizicelo zokupholisa i-LED.

Ngaba ii-strips ze-LED zifuna i-Heat sink?

Incinci, inamandla aphantsi Imichilo ye-LED azifuni ngokuqhelekileyo isinki yobushushu njengoko zivelisa ubushushu obuncinane kakhulu. Nangona kunjalo, kwimichilo ye-LED ene-high-powered, i-heat sink inconywa kakhulu. Njengoko inceda ukutshabalalisa ubushushu kunye nokukhusela umonakalo kwi-strip ye-LED.

Iisinki zokushisa zivame ukwakhiwa ngentsimbi kwaye zisebenza njengabancedisi. Itsala ubushushu kude kuluhlu lwe-LED kwaye ibuchithe emoyeni ojikelezileyo. Ngaphandle kwendawo yokutshisa ubushushu, imichilo ye-LED enamandla amakhulu inokushisa kakhulu. Oku kuya kunciphisa ubomi babo kwaye kubangele ukuba bangaphumeleli. Ngoko ke, ukuba usebenzisa i-strip ye-LED enamandla kakhulu, kuyacetyiswa ukuba usebenzise i-heat sink. Oku kuya kuqinisekisa ukuhlala kwayo ixesha elide kunye nokusebenza kakuhle.

Uyenza njani isayizi yeSinki yoBubushushu kwizibane zeStrip?

Ukulinganisa i-sink yokushisa ukukhulula izibane linyathelo elibalulekileyo kubomi obude kunye nokusebenza kakuhle kwenkqubo yokukhanyisa. Nanga amanyathelo okwenza ubungakanani besinki yobushushu kwizibane zestrip:

Inyathelo loku-1: Khangela amandla ezibane zestrip

Inyathelo lokuqala kukumisela amandla ezibane zestrip kwiiwatts. Olu lwazi ludla ngokufumaneka kwiinkcukacha zemveliso.

Inyathelo-2: Bala ubushushu obuveliswayo

Inyathelo elilandelayo kukubala ubushushu obuveliswa zizibane zestrip. Oku kunokwenziwa kusetyenziswa ifomyula: Ubushushu obuveliswayo = Amandla x Ukusebenza kakuhle. Into esebenzayo idla ngokuba malunga ne-90%.

Inyathelo-3: Ukugqiba ukuchasana kwe-thermal ye-heat sink

Ukuxhatshazwa kwe-thermal ngumlinganiselo wokumelana nobushushu bokushisa ukuhanjiswa kobushushu. Idla ngokubonakaliswa nge-°C/W.

Inyathelo-4: Misela ubuninzi obuvumelekileyo bokunyuka kweqondo lokushisa

Ubuninzi obuvumelekileyo bokunyuka kweqondo lobushushu ngumahluko phakathi kwe-ambient kunye namaqondo obushushu aphezulu izibane zestrip kufuneka zifikelele. Umvelisi udla ngokuchaza obu bushushu.

Inyathelo lesi-5: Bala ubungakanani obufunekayo bokuhlamba ubushushu

Inyathelo lokugqibela kukubala ubungakanani obufunekayo besitya sokutshisa ubushushu usebenzisa ifomula-

Ubungakanani beSinki yoBubushushu obufunekayo = Ubushushu oBonisiweyo ÷ (Ukumelana neThermal x Ukunyuka koBubushushu obuVumelekileyo)

Kubalulekile ukukhumbula ukuba ubalo olungentla luqikelelo nje. Ukuze ufumane uqikelelo oluchanekileyo, ungathetha nengcali. Ukongezelela, qwalasela imilinganiselo yomzimba ye-heat sink. Ezi zibude kunye nobubanzi bokuqinisekisa ukuba zihambelana ngokufanelekileyo kwinkqubo yokukhanyisa.

Izinto ekufuneka ziqwalaselwe xa ukhetha isinki yobushushu be-LED

Imiba ekufuneka ithathelwe ingqalelo xa ukhetha isinki yobushushu be-LED zezi zilandelayo:

UkuShatshazwa koMoya

Ukumelana ne-Thermal kubhekiselele kwisakhono se-thermal sink ukukhupha ubushushu kude ne-LED. Ukuba ukuxhathisa kwe-thermal kuphezulu kakhulu, ubushushu buya kwakha kwaye bubangele ukuba i-LED igqithise kwaye ingaphumeleli kwangaphambi kwexesha. 

Ngakolunye uhlangothi, ukuba ukuchasana kwe-thermal kuphantsi kakhulu, i-heat sink iya kuba yinto eninzi kakhulu. Oku kuya kuchaphazela uyilo lonke lwenkqubo ye-LED. Kubalulekile ukubetha ibhalansi phakathi kokunganyangeki kwe-thermal kunye nezinye izinto, ezifana neendleko, ubungakanani, kunye nezinto eziphathekayo, ukukhetha i-LED echanekileyo yokutshisa ubushushu kwisicelo sakho esithile.

Ukuhamba kobushushu

Xa ukhetha isinki yobushushu be-LED, qwalasela ukuhamba kobushushu. Umsebenzi ophambili wesinki yobushushu kukususa ubushushu kude ne-LED. Ikhusela ukufudumala kwaye iyandisa umsebenzi wobomi. Ukuba i-heat sink ayikwazi ukuhambisa ubushushu ngokufanelekileyo, i-LED ekugqibeleni iya kutshisa kwaye iphumelele. 

Kuya kufuneka uvavanye ukuhamba kobushushu ngokusekelwe kwimveliso yamandla e-LED. Ikwabala ubushushu be-ambient kunye nokumelana nobushushu bezinto. Ukukhetha i-heat sink ene-conductivity ephezulu ye-thermal kunye nokumelana nokushisa okuphantsi kuyacetyiswa. Oku kuya kuqinisekisa ukugqithiswa kobushushu. Ngokuhamba kobushushu obufanelekileyo, isitya sokushisa se-LED siya kunika ukupholisa okuthembekileyo nokusebenzayo kwe-LED.

Ukuqhuba Ukushisa

I-Thermal conductivity yikhono lezinto eziphathekayo ukuhambisa ubushushu ukusuka kwelinye iphuzu ukuya kwelinye. Ukuhanjiswa okuphezulu kwe-thermal kuthetha ukuba ubushushu buya kutshabalalisa ngokufanelekileyo ukusuka kwi-LED ukuya kwi-heat sink. Ukusebenzisa i-heat sink ye-thermal conductivity engcono ikhusela ii-LED ekugqithiseni. Nangona kunjalo, izinto ezahlukeneyo zineendlela ezahlukeneyo zokuqhuba i-thermal. Ngokomzekelo, i-aluminium ye-thermal conductivity ihamba malunga ne-170-251 W / mK. Ngelo xesha, i-copper ye-thermal conductivity iphezulu kune-aluminium, enexabiso elimalunga ne-401 W / mK. 

Uhlobo olugqibeleleyo lweeSinki zobushushu

Iisinki zobushushu obungatshintshiyo ziyilelwe ukukhupha ubushushu ngokuhambisa kwendalo kunye nokuqhuba. Ke, abathembeli kwiindlela zokupholisa ezisebenzayo ezinje ngeefeni okanye ukupholisa amanzi. Oku kunokuba yindlela ekhangayo kwezinye izicelo njengoko kuphelisa imfuno yokugcinwa kunye nengxolo. Ikwanqanda iindawo ezinokuthi zibekho zokungaphumeleli ezinxulumene nokupholisa okusebenzayo. Ukongeza, i-passive heat sinks inokuba yindleko ngakumbi. Ikwanayo nemeko encinci yefomu kunezisombululo zokupholisa eziguqukayo. 

Ukuhanjiswa kwendalo

I-convection yendalo ibhekisa ekuhambeni kobushushu obugqithiselwa kulwelo, oludla ngokuba ngumoya. Kule nkqubo, ulwelo/umoya oqukuqelayo ngaphaya kobushushu obufudumeleyo bususa ubushushu kumphezulu kwaye bubudlulisele kwindawo engqongileyo.

Nangona kunjalo, ukonyusa isiphithiphithi somoya phakathi kwesithuba somphetho weentsinki zobushushu kuphucula kakhulu ukuhanjiswa kwendalo. Kule meko, ukuyila kunye nokwakhiwa kwamaphiko / iipleyiti zibalulekile. Umzekelo- amaphiko anemingxuma egrunjiweyo akhawulezisa indlela yokupholisa. Ke, qwalasela le nto ngaphambi kokukhetha isitya sokutshisa esifanelekileyo kwi-LED yakho. 

Ukutshatyalaliswa kobushushu obuphezulu

Ukutshatyalaliswa kobushushu obuphezulu kuvumela izibane ze-LED ukuba zisebenze kwiqondo lokushisa eliphantsi. Iyanciphisa umngcipheko womonakalo ekugqithiseni kwaye inyuse ixesha lokuphila kwezibane. Kwaye olu hlobo lobushushu lunciphisa amandla afunekayo ukupholisa izibane. Kwakhona, kunciphisa ukusetyenziswa kwamandla ngokubanzi. Kwakhona, ubushushu obuphezulu bokulahla ubushushu bunceda ekunciphiseni iindleko zokugcina ixesha elide.

Ubume kunye nobukhulu beeFins

Ubungakanani kunye nenani lamaphiko liya kugqiba indawo engaphezulu ukuze ubushushu buphele. Kwangaxeshanye, imilo yee-fins inokuchaphazela ukuhamba komoya kwe-heat sink kunye nokusebenza kakuhle. Ngaphandle koko, isinki eshushu enamaphiko amakhulu, alungelelanisiweyo aya kubonelela ngokuchitha ubushushu obungcono. Xa kuthelekiswa nenye enamaphiko amancinci, asondeleleneyo. Ukongeza, imilo yeefins, ezinje ngeflethi okanye egobileyo, zinokuchaphazela ukusebenza kobushushu.

Uyifaka njani iSinki yoBubushushu be-LED?

Nantsi inyathelo ngenyathelo isikhokelo sokufakela isinki yobushushu be-LED:

Okokuqala, lungisa i-LED yofakelo lwe-heatsink. Ukuba i-LED intsha, yifake kwisibambi se-LED okanye kwisokethi. Ukuba i-LED ifakiwe, qinisekisa ukuba ikwindawo ngokukhuselekileyo kwaye ayizukukhululwa ngexesha lenkqubo yokufaka isinki sobushushu.

Okwesibini, coca ii-LED kunye nomphezulu we-heat sink kunye ne-isopropyl alcohol ukuqinisekisa ibhondi eyomeleleyo. Faka inani elincinci le-thermal compound kumphezulu we-LED. Oku kubandakanywa kuya kuphucula ukuhanjiswa kobushushu phakathi kwe-LED kunye ne-heat sink.

Okwesithathu, lungelelanisa i-sink yokushisa kunye ne-LED kwaye uyifake kwisibambi se-LED okanye i-socket. Ngokuxhomekeke kwisitya sobushushu kunye noyilo lwesibambi se-LED, oku kunokubandakanya izikrufu, izikliphu, okanye indibaniselwano yazo zombini. Emva kokuba i-heat sink iqhotyoshelwe ngokukhuselekileyo, vula i-LED kwaye ukhangele ukusebenza kakuhle. I-LED kufuneka iqaqambe kwaye izinzile ngaphandle kokuqhwanyaza okanye ubumnyama.

Gqi beleni, ukuba i-LED isebenza ngokufanelekileyo, qinisa naziphi na izikrufu okanye iikliphu ukuze uqinisekise uxhulumaniso olukhuselekileyo. Ukuba kuyimfuneko, yongeza i-thermal compound ukuphucula ukutshatyalaliswa kobushushu.

Indlela yokwandisa ukusebenza kakuhle kweSinki yoBushushu?

Kubalulekile ukuqinisekisa ukuba ilinganiswe ngokufanelekileyo ukuze ukwandise ukusebenza kakuhle kwesinki yobushushu ye-LED. Kwakhona, yakhiwe ngokufanelekileyo kwaye ifakwe ngokufanelekileyo. Qinisekisa ukuba isitya sobushushu sikhulu ngokwaneleyo ukumelana nobushushu obuveliswa sisixhobo se-LED. Ukuba incinci kakhulu, ayisayi kuchitha ubushushu ngokufanelekileyo. Ukongezelela, ukukhetha izinto ezisemgangathweni ophezulu kunye ne-thermal conductivity efanelekileyo kuyimfuneko. Oku kuya kunceda ukuqinisekisa ukusebenza kakuhle.

Ekugqibeleni, ukufakela okufanelekileyo kubalulekile ekusebenzeni ngokufanelekileyo. Qinisekisa ukuba isinki sobushushu se-LED sincanyathiselwe ngokukhuselekileyo kwisixhobo. Kwakhona, qinisekisa ukuba akukho zikhewu kwindibano ezinokuphazamisa ukuhamba komoya. La manyathelo aya kunceda ukuqinisekisa ukuba isinki sakho sobushushu se-LED sisebenza ngokufanelekileyo.

Ngaba Ubunzima beSinki yoBubushushu Bubalulekile?

Ewe, ubunzima besinki yobushushu bubalulekile. Okukhona ubushushu bobushushu buba nzima, kokukhona bubuchitha ubushushu kwaye bugcine amalungu epholile. Iisinki zobushushu ezinzima nazo zinendawo eninzi yomphezulu. Oku kuzivumela ukuba zifunxe ubushushu obuninzi kwizinto ezizipholisayo. Ngoko xa ukhetha isitya sokufudumala, kubalulekile ukuqwalasela ubungakanani kunye nobunzima bayo.

FAQs

isiphelo

Ngokubanzi, iisinki zokushisa ze-LED zenzelwe ngokukodwa ukukhanya kwe-LED. Ibonelela ngendlela yokugcina ii-LED zisebenza ngokusemandleni abo ngelixa zikwagcina ukuba zingatshisi kakhulu. Basebenza ngokuhambisa ubushushu kude kwii-LEDs. Oku kuvumela ukuba bapholile kwaye basebenze ngakumbi.

Ukuqukumbela, i-heater ye-LED ikhusela nawuphi na umonakalo onokuthi ubangelwe kukushisa. Ngaphandle kwayo, ii-LED azinakukwazi ukufikelela kwisakhono sazo esipheleleyo. Ke ngoko, ukuqinisekisa ulawulo olufanelekileyo lobushushu kubalulekile kulo nakuphi na ukusetwa kwe-LED.

I-LEDYi yenza umgangatho ophezulu Imichilo ye-LED kunye ne-LED neon flex. Zonke iimveliso zethu zidlula kwiilabhoratri zobuchwepheshe obuphezulu ukuqinisekisa owona mgangatho uphezulu. Ngaphandle koko, sinikezela ngeenketho ezinokwenziwa ngokwezifiso kwimigca yethu ye-LED kunye neon flex. Ke, kwiprimiyamu ye-LED strip kunye ne-LED neon flex, uqhagamshelane LEDYi NGOKUKHAWULEZA OKUDIBENE NOKUNGXAMA!