Kedu ihe dị iche n’etiti PCB ngwugwu LED na PCB seramiiki DPC?

Dị ka onye na -ebu okpomọkụ na ikuku convection, ngwongwo ọkụ nke ike LED jikọtara PCB na -arụ ọrụ dị oke mkpa na mgbasa ọkụ ọkụ LED. PCB seramiiki DPC nwere arụmọrụ ya nke ọma ma jiri nwayọ belata ọnụahịa, n’ọtụtụ ihe nkwakọ ngwaahịa elektrọnik na -egosi asọmpi siri ike, bụ ike mmepe nkwakọ ngwaahịa LED n’ọdịnihu. Site na mmepe nke sayensị na teknụzụ yana mpụta nke teknụzụ nkwadebe ọhụrụ, ihe seramiiki dị elu dị ka ihe mkpuchi PCB ọhụrụ nwere atụmanya ngwa sara mbara.

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Teknụzụ nkwakọ ngwaahịa LED na -etolite etolite ma dabere na teknụzụ nkwakọ ngwaahịa pụrụ iche, mana ọ nwere ọpụrụiche. N’ozuzu, a na -emechi isi ihe dịpụrụ adịpụ n’ime ngwugwu. Isi ọrụ nke ngwugwu bụ ichebe isi na njikọ eletrik zuru oke. Na nkwakọ ngwaahịa LED bụ iji mezue akara eletriki mmepụta, chekwaa ọrụ nkịtị nke isi tube, mmepụta: ọrụ ọkụ a na -ahụ anya, ma elele eletriki, yana ngwa anya nke imewe na ihe ndị chọrọ teknụzụ, enweghị ike ịbụ nkwakọ ngwaahịa ngwaọrụ pụrụ iche maka LED.

Site na mmụba na -aga n’ihu nke ike ntinye mgbawa LED, oke ọkụ na -ewepụta site na ikesa oke na -ebute ihe dị elu maka ihe nkwakọ ngwaahịa LED. Na ọwa mgbasa ọkụ ọkụ ọkụ, PCB nwere ngwugwu bụ njikọ dị mkpa na -ejikọ ọwa mgbapụta ọkụ n’ime na mpụga, ọ nwere ọrụ nke ọwa mgbasa ọkụ, njikọ sekit na nkwado anụ ahụ mgbawa. Maka ngwaahịa ọkụ ọkụ LED dị elu, PCBS nkwakọ ngwaahịa chọrọ mkpuchi eletriki dị elu, conductivity thermal dị elu na ọnụọgụ mgbasa ọkụ na-adabara mgbawa.

Ihe ngwọta dị ugbu a bụ itinye mgbawa ozugbo na radiator ọla kọpa, mana radiator ọla kọpa bụ n’onwe ya ọwa na -eduzi. N’ihe gbasara isi ọkụ, anaghị enweta nkewa thermoelectric. N’ikpeazụ, a na -etinye ọkụ ọkụ na bọọdụ PCB, yana mkpuchi mkpuchi ka dị mkpa iji nweta nkewa thermoelectric. N’oge a, agbanyeghị na okpomoku anaghị etinye anya na mgbawa, ọ na -etinye uche n’akụkụ mkpuchi mkpuchi n’okpuru isi ọkụ. Ka ike na -abawanye, nsogbu okpomọkụ na -ebilite. DPC seramiiki mkpụrụ nwere ike idozi nsogbu a. Ọ nwere ike idozi mgbawa ozugbo na seramiiki wee mepụta oghere njikọ kwụ ọtọ na seramiiki iji mepụta ọwa na -eduzi n’ime onwe ya. Ceramik n’onwe ha bụ insulators, nke na -ekesasị okpomọkụ. Nke a bụ nkewa thermoelectric na ọkwa isi ọkụ.

N’ime afọ ndị na-adịbeghị anya, SMD LED na-akwadokarị iji ihe plastik injinị emezigharị dị elu, na-eji resin PPA (polyphthalamide) dị ka akụrụngwa, na ịgbakwunye ihe ndozigharị gbanwere iji kwalite ụfọdụ akụrụngwa anụ ahụ na kemịkalụ nke akụrụngwa PPA. Yabụ, ihe PPA dabara adaba maka ịkpụzi injection yana ojiji braket LED SMD. PPA plastic conductivity thermal conductivity dị ala nke ukwuu, mgbasa ya na-ekpo ọkụ bụ site na ogwe ọkụ igwe, ike ikpo ọkụ nwere oke, naanị dabara maka nkwakọ ngwaahịa LED dị ala.

 

Iji dozie nsogbu nke nkewa thermoelectric na ọkwa isi ọkụ, ihe seramiiki kwesịrị inwe njirimara ndị a: nke mbụ, ọ ga -enwerịrị ọkụ ọkụ dị elu, ọtụtụ iwu nke ịdị elu karịa resin; Nke abụọ, ọ ga -enwerịrị ike mkpuchi; Nke atọ, sekit nwere mkpebi dị elu ma enwere ike ijikọ ya ma ọ bụ tụgharịa ya na mgbawa na -enweghị nsogbu. Nke anọ bụ elu elu dị larịị, ọ gaghị enwe oghere mgbe ịgbado ọkụ. Nke ise, seramiiki na ọla kwesịrị ịnwe nrapado dị elu; Nke isii bụ oghere na-ejikọ ọnụ kwụ ọtọ, si otú a na-enyere encapsulation SMD aka iduzi sekit site n’azụ gaa n’ihu. Naanị mkpụrụ na -ezute ọnọdụ ndị a bụ mkpụrụ seramiiki DPC.

Mkpụrụ seramiiki nwere ọkụ ọkụ dị elu nwere ike melite arụmọrụ mgbasa ọkụ nke ọma, bụ ngwaahịa kachasị dabara maka mmepe nke ike dị elu, obere LED. PCB seramiiki nwere ihe nrụpụta ọkụ ọkụ na ihe owuwu ọhụrụ, nke na -eme maka ntụpọ nke PCB aluminom ma na -emeziwanye mmetụta jụrụ oyi nke PCB. N’ime ihe seramiiki a na -eji PCBS jụrụ oyi ugbu a, BeO nwere conductivity thermal dị elu, mana ọnụọgụ ịgbatị ahịrị ya dị nnọọ iche na nke sịlịkọn, yana nsị ya n’oge nrụpụta na -egbochi ngwa nke ya. BN nwere ezigbo arụmọrụ n’ozuzu ya, mana ejiri ya dịka PCB.

Ihe a enweghị uru pụtara ìhè ma dịkwa ọnụ. Ugbu a na -amụ ma na -akwalite; Silicon carbide nwere ike dị elu na conductivity thermal dị elu, mana nguzogide ya na mgbochi mkpuchi ya dị ala, yana nchikota mgbe ịmechara igwe anaghị akwụsi ike, nke ga -eduga na mgbanwe na conductivity thermal na nkwụsị dielectric adịghị mma maka iji dị ka mkpuchi PCB ihe.