Maitiro ekusarudza Yakanakisa PCB Encapsulation Material yeProjekti Yako

Nhanganyaya yePotting uye Encapsulation

Potting kana encapsulation inzira inoshandiswa zvakanyanya kuchengetedza mapuranga edunhu kubva mukukuvadzwa, uye yakaratidza kuti inoshanda. Akasiyana-siyana maumbirwo ehari anoshandiswa munzvimbo dzakasiyana dzedunhu, zvichibva pane zvakanakira uye hunhu hwezvinhu. Zvishandiso zvakajairika zvinosanganisira:

• Ethylene-vinyl acetate (EVA)
• Polyphenylene sulfide (PPS)
• Polyphenylene oxide
• Polyamide-imide
• Acrylics
• Polyesters

Muchinyorwa chino, Highleap Electronic ichapa tsananguro yakadzama yezvakanakira, zvakaipira, uye mamiriro ekushandiswa kwezvinhu zvakasiyana. Kubatanidza Dhizaini Yekugadzira (DFM) kunoongorora maitiro ekugadzira PCB kunovimbisa mhedzisiro yakanakisa yepurojekiti yako.

Chii chinonzi potting PCB?

Potting chiyero chekudzivirira chinoshandiswa nevazhinji PCBA bhodhi vanogadzira kuchengetedza maseketi emagetsi kubva pakupisa, njodzi dzezvakatipoteredza, makemikari, uye zvinokanganisa. Izvi zvinowanikwa nekuzadza iyo yakavharwa yePCB bhodhi ine potting compound, iyo inoshanda se encapsulation resin, nokudaro kudzivirira bhodhi rose uye zvikamu zvayo. Hezvino zvimwe zvikonzero nei uchifanira kufunga potting PCB bhodhi:

• Potting inosimudzira mashandiro emagetsi uye kuvimbika kwedunhu nekudzivirira maPCB kubva mukukanganisa, hunyoro, uye kudonha kwemagetsi. Potting zvakare inodzivirira zvemagetsi kubva pamhedzisiro yekuzunguzika uye kusagadzikana, kudzivirira kubviswa kwewaya uye kutanga kutadza kwehurongwa.
• Pamusoro pezvo, iyo PCB nePCB kesi yemafungu ekuzunguza inogona kubatana, ichiwedzera kushushikana paPCB uye kukonzera kutadza kwekutanga. PCBs inova kushushikana uye vibration inodzivirira kuburikidza nekuputira.
• Zvakare, Encapsulation inodzivirira maPCB kubva kutsvina neguruva, izvo zvinogona kukonzera kupisa, kukanganiswa kwechiratidzo, uye kuderera kwekumhanya kana kuita.
• Chekupedzisira, PCB board potting inovandudza kuchengetedzeka uye kuvanzika kwechigadzirwa chemagetsi. Hunhu hwekuputira hunoita kuti kuwana PCB yako uye kudzosera mainjiniya mudziyo wako kunetsa zvakanyanya, nekudaro uchiwedzera kuvanzika uye kuchengetedzeka kwePCB board yako.

Zvishandiso zvakajairika zvePCB Encapsulation

Ethylene-vinyl acetate (EVA)

Ethylene-vinyl acetate (EVA) ivhu rinoshandiswa zvakanyanya muindasitiri yemagetsi nekuda kwekuita kwayo kwakawanda. Yakanakira maapplication ekunze anoda kuvhunduka nekuda kwekugona kwayo kubata kuvhunduka uye vibration. Uyezve, inoratidzira kunamatira kwakanaka kune zvakasiyana-siyana zvezvinhu zvakaita sesimbi, mapurasitiki, uye mamwe ma substrates. Inochengetedza zvinhu zvayo kunyange pakupisa kwakadzika uye inopa yakanakisa magetsi ekudzivirira.

Pasinei nezvakanakira, musanganiswa wehari uyu une zvimwe zvipingamupinyi izvo zvakaoma kufuratira. Nepo zvinhu zvinochinjika zvichiita kuti zvisaite kutsemuka kana chakakombama, hazvigone kupa dziviriro yemuchina seyakaomarara zvinhu uye zvinogona kunge zvisina kukodzera zvimwe zvinhu zvisina kusimba. Uyezve, hazvikurudzirwe kune zvakanyanya kunyanyisa nharaunda, senge tembiricha yepamusoro kana nzvimbo dzine acidic. Kunyange zvisingadhure, zvingasava nyore kuwana kune vanogadzira PCBA mune mamwe matunhu.

Tichifunga nezvezvakanakira nezvayakaipira, zviri pachena kuti EVA inogona kushandiswa mumamiriro akasiyana-siyana uye mashandisirwo. Inowanzoshandiswa mumaPCB emagetsi evatengi , akadai semafoni, mapiritsi, uye malaptop. Zvisinei, ingasakodzera kushandiswa mumaindasitiri uko zvimwe zvigadzirwa zvemaindasitiri zvevagadziri, zvakaita semadhiraivha emota, maPLC , uye masensa, zvinoda kuti maseketi akadhindwa ave nedanho rekudzivirira michina iro EVA ingasasangana naro. Pamusoro pezvo, haishandiswe mumashandisirwo epamusoro-soro akadai semidziyo yekurapa , magetsi emugungwa, magetsi emuchadenga nekudzivirira, magetsi emotokari, uye mashandisirwo esimba rinodzokororwa. Pasinei nekusakwana kwayo, EVA ichiri chinhu chinoshandisika uye chinodhura zvishoma chemidziyo yakawanda yemagetsi.

Polyphenylene sulfide (PPS)

Polyphenylene sulfide (PPS) chinhu chinogara kwenguva refu uye chinodzivirira kupisa chinogona kutsungirira tembiricha inosvika 260°C, zvichiita kuti chive chakakodzera kushandiswa pakupisa kwakanyanya. Chinhu ichi chinodzivirira moto zvakanyanya uye chinosangana nemazinga eUL 94 V-0 ekupisa, zvichiita kuti chive chakavimbika uye chakachengeteka munzvimbo dzakaoma. Simba rayo guru uye kuomarara, pamwe chete nekudzikama kwakanaka uye kugadzikana kwehukuru, zvinoita kuti ive sarudzo yakanaka kune maPCB anoda kushivirira kwakaringana. Uyezve, kuramba kwayo ngura kwakanyanya kunobvumira kusangana neacids nebases.

Izvo zvakakosha kuti uzive, zvisinei, kuti PPS isarudzo inodhura uye inoda hunyanzvi hwekugadziriswa kwePCBA. Pamusoro pezvo, chinhu chakaomarara uye hachigone kusangana nezvinodiwa zvePB inoshanduka. Hunhu hwayo hunogonawo kudzikiswa mune dzimwe nharaunda, sekupfava patembiricha yakaderera uye kubuda kwemavara kana kudzikira kana yaiswa mumwaranzi yeUV.

PPS inoshandiswa zvakanyanya muzvishandiso zvemazuva ano uye zvinodhura zvakanyanya zvakaita semidziyo yekukurukurirana mundege, masisitimu ekufambisa magetsi ekudzivirira uye mamodule ekudzora, uye masensa mumotokari dzinozvityaira dzega. Zvisinei, inokosheswawo zvikuru nevatengi vemaindasitiri vanoda kushanda munzvimbo dzakaoma, kusanganisira tembiricha yakakwira uye ngura yemakemikari. Kunyange hazvo mabhodhi ekudzora eindasitiri achigona kudhura kutsiva kana kugadzirisa, PPS inopa mhinduro yakavimbika uye isingadhuri, zvichiita kuti ive sarudzo yakakodzera yezvishandiso zvakaita semadhiraivha emota uye maPLC.

Polyphenylene oxide

Kune vashandisi vari kutsvaga multifunctional material, polyphenylene oxide (PPO) isarudzo yakanaka kwazvo, ine musanganiswa wakaenzana wekugona uye kugona. Kunyange zvazvo isingadziviri kupisa sepolyphenylene sulfide, inogona kushanda munzvimbo dzinosvika 140 ° C, iyo inokwana kushandiswa kwakawanda. Uyezve, PPO inopa kuchengetedzwa kwakaringana kwemuchina uye kugadzikana kwedimensional, uye ine kuramba kwakanaka kune ese ekunze uye acidic / alkaline nharaunda. Zvikanganiso zvayo zvishoma zvakafukidzwa nezvakanaka zvaro zvakawanda, nechakaipa chete chinocherechedzwa kuoma kwayo pano neapo mukutenga.

Nekuda kwemhando dzakasiyana-siyana dzekudzivirira, PPO inogona kushandiswa mumabasa akawanda. Semuenzaniso, inowanzo shandiswa mumidziyo yemumba yakaita seTV nema air conditioner , pamwe nenzvimbo dzeveruzhinji dzakadai se solar panels , wind turbines, uye masisitimu ekuchengetera simba. PPO yakakodzerawo kushandiswa muPCB yekurapa , kusanganisira ma sensor anoiswa mumainplants uye masisitimu ekutumira mishonga, uye inogona kuwanikwa mumaindasitiri akadai sendege , mauto, uye maindasitiri. Pamwe chete, kugona kwayo kushanda nesimba uye kutenga zvinhu zvakawanda zvinoita kuti ive sarudzo yakanaka kune akawanda mashandisirwo.

Polyamide-imide

Polyamide-imide (PAI) chinhu chinowanzo shandiswa mumunda weindasitiri nekuti inoshingirira munzvimbo dzakanyanyisa uye inogona kupa dziviriro yenguva refu. Inopindirana nekupisa kwekushisa kwepamusoro uye kunyura kwemvura yakadzika, iyo inoita kuti ive yakanakira kudzivirira matambudziko ane chekuita nekunyorova mumaindasitiri ekushandisa, uko tembiricha yepamusoro inogona kukonzera mvura mhute atomization munharaunda, zvichitungamira kupfupi bhodhi.

Nekudaro, semamwe emhando yepamusoro-yekudzivirira-inodzivirira makomisheni, yakakosha michina inodiwa pakugadzirisa, uye warping inogona kuitika panguva yekuita, izvo zvinogona kutungamira kune chigadzirwa deformation. Polyamideimide haina kukodzera kune zvikumbiro zvinoda rumwe ruvara, sezvo ine ruvara rwechisikigo rusingagoni kuchinjwa nyore panguva yekugadzirisa. Pamusoro pezvo, inova isina kusimba munzvimbo dzakadzika-tembiricha, uye yakawandisa simba rekunze rinogona kuita kuti ityoke.

Pasinei nemiganhu iyi, PAI inoenderana zvakanyanya nearuminiyamu PCBs, zvichiita kuti ive chinhu chakakodzera chekugadzira makomba e LED uye magetsi ezuva. Inobatsirawo mukushandisa makomba ekugadzira michina yekutsvaga mafuta negasi, senge ma sensor ekuboorera ne controller.

Acrylics

Acrylic ndeye encapsulation compound iyo iri nyore kugadzirisa uye kurapa nekukurumidza, zvichiita kuti ive sarudzo inokwezva kune vatengi vari kutsvaga kukurumidza kutendeuka PCB gungano rekugona kubva kukambani yekugadzira. Iyo zvakare chinhu chakakodzera chePCB potting, sezvo ichibatsira kuderedza nguva yekugadzira. Nepo acrylic aine adhesion yakanakisa uye makemikari kuramba, ine kushomeka kwekupisa uye inogona kuita brittle nekufamba kwenguva, zvichikonzera hupenyu hupfupi. Nekudaro, inogona kugadzirwa kuti ive pachena, ichiita kuti ive yakanaka kune zvemagetsi zvikumbiro zvinoda kufambiswa kwechiedza.

Panyaya yezvakanakira, acrylic haina akawanda kana ichienzaniswa nezvimwe zvinhu. Kunyanya kukosha kwayo ndeyekuti haina kudhura, ichiita kuti ive yakakodzera kune vatengi zvigadzirwa zvemagetsi zvine yakaderera purofiti margins, sezvo isingawedzere zvakanyanya mari yekugadzira.

Polyesters

Polyester ine yakanakisa magetsi insulating zvivakwa, zvichiita kuti ive yakakodzera kune akasiyana magetsi ekushandisa, anosanganisira mota dzemagetsi, magetsi emagetsi, uye HVAC masisitimu. Kunyangwe iri musanganiswa wehari isingadhuri, hupenyu hwayo hupfupi, zvichiita kuti ive sarudzo ine hupfumi. Mumidziyo yekurapa, inowanzoshandiswa mukutarisa michina uye maturusi ekuongorora.

Ndeapi Mabhenefiti ePCB Encapsulation?

Seinjiniya, ndinogona kupupurira kune akawanda mabhenefiti ayo PCB encapsulation inounza patafura. Iyi nzira yakakosha pakusimudzira kuvimbika uye hupenyu hurefu hwezvikamu zvemagetsi. Heino chikonzero:

• Dziviriro Yakasimba Kubva Mumvura Nekuvhunduka : Kuvharwa kwepurasitiki kwakakosha pakudzivirira maPCB kubva mukukuvadzwa nemvura uye kuvhunduka kwemuviri, izvo zvinowanzo kutyisidzira munzvimbo dzakasiyana-siyana.

• Kuramba Kushanda Kwemakemikari Nengura : Nzira iyi inopa dziviriro yakakura kubva pakusvibiswa nemakemikari uye ngura, zvichiita kuti ive yakakodzera maPCB anoshanda mumamiriro ezvinhu akaoma.

• Kudzivirira Kwakawedzerwa uye Mashandiro Akanaka : Nekuvandudza kudzivirira pakati pezvikamu zvemagetsi, kuvharwa kwesimbi kunobatsira kuderedza kurasikirwa kwemagetsi, zvichiita kuti mudziyo urambe uchishanda zvakanaka nekufamba kwenguva.

• Dziviriro yeKudedera kweMichina : Kuvharwa kwechinhu chinodzivirira kukuvara kunokonzerwa nekudedera kwemuchina, zvichichengetedza kusimba kwezvikamu zviri paPCB.

• Kuderedza Kukanganiswa kweRFI/EMI : Maitiro aya anoshanda zvakanyanya mukuderedza kukanganiswa kwemafrequency eredhiyo (RFI) uye kukanganiswa kwemagetsi (EMI), izvo zvinogona kukanganisa mashandiro emudziyo.

• Kuderedza Kushushikana Pamajoini Anosungirirwa : Kuvharwa kwesimbi kunopa hwaro hwakasimba hwekubatanidza waya, zvichideredza zvakanyanya kushushikana pamajoini anosungirirwa uye kudzivirira kutadza kana kuputsika.

• Chidziviriro Chekusvibisa : Chinoumba chisimbiso chakachengeteka chinochengetedza guruva, tsvina, nezvimwe zvinosvibisa, zvichidzivirira PCB kubva mukukuvadzwa kunogona kuitika.

• Dziviriro Kubva kuMandebvu eTin : Kuvharwa kwendebvu kunoshanda sechidziviriro chezvakatipoteredza, kuchidzivirira kuumbwa kwendebvu dzeTin dzinokuvadza dzinogona kukonzera mapfupi uye zvimwe zvikanganiso.

• Dambudziko muReverse Engineering : Kubva pakuona kwekuchengetedza, maPCB akavharirwa akaoma zvikuru kuagadzirisa nekuachinja kana tichienzanisa neaya ane machira e conformal, zvichidzivirira magadzirirwo ako kuti asakoperwe.

• Dziviriro Yekuwedzera Kwekupisa : Nzira iyi inodzivirirawo zvikamu kubva kumatambudziko ane chekuita nekuwedzera kwekupisa, ichiva nechokwadi chekuti PCB inoramba iine kuchena kwayo kweionic uye hunhu hwekudzivirira hunyoro.

• Inodhura Uye Inoshanda Zvakanaka : Kuvhara jira kunowanzo kurumidza uye kunoderedza mari kupfuura dzimwe nzira dzekudzivirira, zvichida matanho mashoma ekushandisa uye zvinobvisa kudiwa kwekubatanidzazve. Uye zvakare, sarudzo dzisina VOC dziripo kune avo vane hanya nekukanganiswa kwezvakatipoteredza.

• Zviri Nyore Kushandisa : Maitiro acho ari nyore uye anoshanda, kunyangwe mumashandisirwo akawanda, zvichiita kuti ive sarudzo inoshanda kune vagadziri vari kutsvaga kugadzirisa mashandiro avo.

Kazhinji, kuvharwa kwePCB inzira inokosha inopa dziviriro yakakwana, inovandudza mashandiro, uye inovimbisa kuvimbika kwenguva refu kwemidziyo yemagetsi.

mhedziso

Kuti purojekiti yako iwedzere kunaka, zvakakosha kusarudza zvinhu zvakakodzera zvichienderana nekushandiswa kwakasiyana uye zvinodiwa. Kana zvasvika pakudzivirira PCB, conformal coating inzira inoshanda pane kuputira muhari. Kunyange zvazvo sarudzo dzese dziri mbiri dzichipa dziviriro, pane misiyano mikuru pakati pezviviri izvi. Kuverenga " Conformal Coating VS Potting" kuchakubatsira kuona kuti ndeipi sevhisi yakakodzera zvaunoda.

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