Yakakwira Voltage Circuit Board Dhizaini uye Kugadzira

Kugadzira yakakwira voltage wedunhu bhodhi (HVPCB) inoda chaiyo mainjiniya kuti ive nechokwadi chekuchengetedza, kuvimbika, uye kushanda. Aya mabhodhi anooneswa kune yakakwirira minda yemagetsi, achiisa njodzi dzakadai se arcing, dielectric breakdown, uye component kutadza. Naizvozvo, kunyatsotariswa kwezvinhu, marongerwo, uye dhizaini zviyero zvakakosha. Ichi chinyorwa chinopa kunzwisisa kwakadzama kwezvinhu zvakakosha zvekugadzirwa kweHVPCB, kusanganisira kusarudzwa kwezvinhu, maitiro ekugadzirisa, uye kufunga nezvekuchengetedza kune akasiyana maapplication.

Chii chinonzi High Voltage Circuit Board?

A high voltage circuit board inobata ma voltages akanyanya kukwira kudarika ayo ari mumagetsi akajairwa, kazhinji anodarika 1000V. Izvi zvinoda chaiwo magadzirirwo maficha kuchengetedza kuita uye kuve nechokwadi chekuchengetedza. Overvoltage mamiriro anogona kukonzera nyaya dzakadai se:

• Dielectric kuputsika: Iyo insulating zvinhu inokundikana, zvichikonzera nzira dzisingatarisirwe dzazvino.
• Arcing: Kubudiswa kwemagetsi kusingadikanwi kuburikidza nemhepo inoputika kana kusvibiswa kwepamusoro.
• Thermal runaway: Kuwedzera kupisa chizvarwa kunogona kukuvadza zvikamu uye kukanganisa iyo yese system.

Dhizaini chaiyo inovimbisa kuti njodzi idzi dzinodzikiswa uchichengetedza kugara kwebhodhi uye hupenyu hurefu, kunyangwe munzvimbo dzakaoma.

Zvishandiso Zvinokosha zveHigh Voltage Circuit Boards

1. Base Laminate Material

Iyo base material inopa insulation pakati pemhangura akaturikidzana uye inokanganisa bhodhi mechanical properties. Inonyanya kushandiswa laminates inosanganisira:

FR4 :

• • Advantages: Inokwanisika, iri nyore kugadzira, uye inopa ine mwero dielectric zvivakwa.
  • payakaipira: Inotapukirwa nekusvibiswa nekufamba kwenguva, izvo zvinogona kuderedza kuvimbika kwayo mune yakakwirira-voltage application.

BT Epoxy :

• • Advantages: Inopa yakanakisa kuramba kupisa uye unyoro, ine yakasimba sidewall kutendeseka.
  • Nokuremara: Mutengo wepamusoro, unoshandiswa zvakanyanya kune nyanzvi dzekushandisa.

Polyimide neTeflon :

• • Advantages: Yakakwira dielectric simba, yakanakira aerospace, mauto, uye zvekurapa zvekushandisa.
  • Nokuremara: Kudhura kwekugadzira kukuru uye kuoma.

Aya ma laminates epamusoro-soro anodiwa munzvimbo dzinoda kuvimbika kwakanyanya.

2. Copper Weight

Ukobvu hwemhangura mubhodhi redunhu kwakakosha pakubata mafungu akakwira. High voltage circuit mabhodhi anowanzoda inorema kana yakanyanyisa mhangura zvidimbu kudzivirira kutsvaga kutsva:

• Mhangura inorema (4-10 oz): Inokodzera akawanda akakwira-voltage application.
• Yakanyanya mhangura (10-50 oz): Inodiwa kune simba-yakanyanya maapplication senge particle collider kana maindasitiri magetsi ekushandisa.

Mhangura yakakora inokwidziridza simba remuchina uye kupisa kupisa, kuve nechokwadi chekuvimbika pasi peyakanyanya-voltage kushushikana.

3. Girazi uye Resin Zvemukati

Chiyero chiri pakati pegirazi fibers uye resin inokanganisa dielectric simba redunhu rebhodhi. Yakakwira resin yemukati ine yakanaka girazi weave inovandudza insulation, ichideredza mukana wepamusoro arcing. Izvi zvakakosha kune maapplication ari kushanda pasi pevacuum kana kudzvanywa kwakanyanya, uko mhepo migero inogona kukanganisa insulation.

4. Comparative Tracking Index (CTI)

CTI inoyera kushorwa kwezvinhu kuteedzerwa kwemagetsi pasi peyakanyanya voltage. Zvishandiso zvakayerwa muzvikamu zvitanhatu zveCTI:

• Category 0: CTI> 600V (Yakanakisa insulation zvivakwa).
• Chikamu 1-2: CTI pakati pe400-600V (Yakanaka kune akawanda akakwira-voltage application).

Kushandisa zvinhu zvine mazinga epamusoro eCTI kunovimbisa kuita kurinani, kunyanya munzvimbo dzine hunyoro kana dzakasvibiswa.

Dhizaini Matekiniki ePamusoro Voltage Circuit Boards

1. Creepage uye Clearance Zvinodiwa

Creepage uye clearance akakosha epakati paramita muHVPCB dhizaini:

• Clearance: Nzira yakapfupika kuburikidza nemhepo pakati pezvinhu zviviri zvinoitisa.
• Creepage: Iyo ipfupi chinhambwe parutivi pebhodhi pamusoro pakati pemakondakita maviri.

Sei Iyi Spacings Inokosha?

Mune yakakwira-voltage maapplication, kusakwana clearance kunogona kukonzera arcing kuburikidza nemhepo, nepo isina kukwana creepage inogona kutungamira pakutevera kwepamusoro uye mapfupi maseketi. Zvakatipoteredza zvinhu zvakaita sehunyoro uye guruva zvinowedzera kuderedza creepage insulation, zvichiita kuti dhizaini chaiyo itonyanya kukosha.

Mafaro Anokurudzirwa Kubva pane Voltage (kubva kuIPC-2221):

• 0-150V: 1.0mm clearance, 1.6mm creepage
• 150-300V: 1.5mm clearance, 2.5mm creepage
• Pamusoro pe1000V: Clearance uye creepage ingada kudarika 10-20mm, zvichienderana nemamiriro ekunze.

2. Optimizing Trace Design

Akapinza mabhendi uye makona mumatanho edunhu anogona kugadzira enzvimbo yemagetsi nzvimbo yekuisa, kuwedzera mukana we arcing. Kuti udzivise izvi:

• Shandisa mitsara yakakomberedzwa kana 45-degree angles pane 90-degree mabhendi.
• Shandisa teardrop pads kuderedza kushushikana kuburikidza nekubatanidza.
• Shandisa zvakafara kuteera kugovera kupisa uye ikozvino zvakanyanya zvakaenzana, kuderedza kupisa kwekushushikana.

3. Pamusoro Pedzisa Kufunga

• ENIG (Electroless Nickel Immersion Gold): Inopa nzvimbo yakatsetseka, inoderedza njodzi dzekurovera.
• HASL (Hot Air Solder Leveling): Inogona kuunza kushata kwepamusoro, izvo zvinogona kukurudzira arcing pasi pemhepo yakakwira.

Nzvimbo yakatsetseka inovimbisa kuti ma arcs haaite pazvikamu zvisingatarisirwi zvebhodhi redunhu, kuchengetedza kutendeseka kwebhodhi.

Kugadzira Kufunga Kwepamusoro Voltage Circuit Boards

1. Routing uye Edge Cleanup

Kufambisa kwakaringana uye kupedzisa kumucheto kwakakosha mukugadzirwa kweakakwira voltage circuit board (HVPCBs). Yakapinza mipendero, maburrs, kana nzvimbo dzakakasharara dzinogona kugadzira nzvimbo uko kusungirirwa kwemagetsi emagetsi kunogona kuitika, zvichikonzera kutadza kwemagetsi. Kuti vagadzirise izvi, vagadziri vanoshandisa kuchenesa kweplasma kana mishonga yemakemikari kubvisa zvinosvibisa uye mipendero yakatsetseka. Kucheneswa kweplasma hakungobvisi zvisaririra zvasara chete asiwo kunonamira pamusoro pemachira, ukuwo kemikari etching ichideredza husina simba hunogona kukonzera kuparara kwekudzivirira. Iyo yakatsetseka mupendero kupedzisa kunoita kuti bhodhi rinoramba rakasimba uye risingagone kubuda nemagetsi nekufamba kwenguva.

Peji rino rinoramba riri gwara guru rekugadzira mabhodhi edunhu ane simba guru. Kuti uwane mazano ekugadzira uye kusarudza nzvimbo, shandisa maitiro ekugadzira maPCB ane simba guru ; pamabhodhi ane simba guru resimbi, enzanisa zvinodiwa nedaro reMCPCB rine simba guru.

2. Conformal Coating

Kuisa conformal coating kunopa kuchengetedzwa kwakakosha kune redunhu bhodhi kubva kune hunyoro, guruva, uye zvimwe zvinosvibisa zvakatipoteredza. Mukushandiswa kwemagetsi akakwira, mabhanhire aya anoita rimwe basa nekudzivirira kutariswa kwepamusoro-nzira yemagetsi isingatarisirwe padivi pebhodhi. Yakasiyana-siyana machira anowanikwa zvichienderana nekushandisa: silicone yakanakira nzvimbo dzepamusoro-tembiricha, acrylic inopa yakanakisa unyoro kuramba, uye parylene inopa epamusoro dielectric simba asi inodhura. Mabatiro anogona kuiswa uchishandisa pfapfaidzo, dip, kana nzira dzekusarudza, kuve nechokwadi chekuvhara yunifomu kudzivirira nzvimbo dzisina kusimba uko kuvharira kunogona kutadza.

3. High Voltage Testing

Kuyedza chikamu chakakosha chemaitiro ekugadzira HV PCB kuve nechokwadi chekuti bhodhi rinogona kubata mavoltage akanyanya zvakachengeteka. Kuyedza kweHi-Pot (High Potential testing) kunoshandisa voltage yakakwira kupfuura level yekushanda pakati pezvinhu zvinofambisa mhepo kuti vaone kuti insulation haiputsike kana kubvumira leakage current. Kuyedza chikamu chekuburitsa mvura kunoona ma micro-arcs kana mapoinzi asina simba mukati mePCB, izvo zvinogona kukanganisa insulation nekufamba kwenguva. Miedzo yese miviri yakakosha kusimbisa kuvimbika kwebhodhi pasi pemamiriro evoltage yakakwira, kuziva uye kubvisa mabhodhi asina kunaka asati aiswa.

4. Thermal Management uye Layer Alignment

Mumabhodhi emagetsi emagetsi akakwirira, kutonga kwemafuta kwakakosha, kunyanya kana mhangura dzakakora dzichishandiswa kutakura zvinorema. Vagadziri vanobatanidza mavias ekupisa, masingi ekupisa, kana ndege dzemhangura kuti dzibvise kupisa zvakanaka uye kudzivirira kushushikana kwekupisa kubva mukukuvadza bhodhi. Pamusoro pezvo, kuve nechokwadi chekurongeka kwakaringana mumabhodhi-akawanda kunodzivirira mapfupi-kune-akapfupi, kuchengetedza kwakaringana creepage uye kureba madaro. Chaiye ekugadzira maitiro anovimbisa kuti dhipatimendi redunhu haringomirire kusimba kwemagetsi asi zvakare rinoramba richishanda kwenguva yakareba munzvimbo dzinoda.

Pakuronga kugadzirwa, zvinobatsirawo kuenzanisa nyaya iyi neongororo yePCB dhizaini uye kuenzanisa pamusoro pechinhu usati wapedzisa kugadzira kana kugadzira pasuru.

Kutevedzera uye Kuchengetedza Matemu ePamusoro Voltage Circuit Boards

High voltage circuit boards (HVPCBs) inofanirwa kutevedzera chaiyo dhizaini uye kuchengetedza zviyero kuti ive nechokwadi chekuvimbika kwavo uye kushanda kwakachengeteka. Imwe yeakanyanya kuomesesa zviyero ndeye IPC-2221, iyo inotsanangura misimboti yekugadzira ye creepage uye kuremerwa kure. Aya madhairekitori anotsanangudza hushoma hwemhepo gap (kucheneswa) uye kureba kwepamusoro (creepage) inodiwa pakati pezvinhu zvinofambisa zvichibva pane yakashandiswa voltage uye zvakatipoteredza zvakaita semwando kana kusvibiswa. Kutevera IPC-2221 inova nechokwadi chekuti bhodhi rinokwanisa kumirisana nekutadza kwe arcing uye insulation, kunyangwe mumamiriro ekushanda akaomarara, zvichibatsira kudzivirira kusashanda kwemagetsi.

Iyo IEC-60950-1 yakajairwa inogadzirisa zvinodiwa zvekuchengetedza zvemidziyo yemagetsi, kusanganisira kurudziro yemidziyo yekudzivirira inoshandiswa muHVPCBs. Iyo inosimbisa kuyedza dielectric kuparara kwesimba re insulating zvikamu pasi pekunetseka kwevoltage, kuve nechokwadi kuti zvinoramba zvichishanda mukati mehupenyu hwechigadzirwa. Pamusoro pezvo, iyi chiyero inosimbisa kukosha kwekuongorora tembiricha yekushanda uye mamiriro ekukanganisa, kuve nechokwadi chekuti kunyangwe ikatadza, sisitimu haiunze njodzi kune vashandisi. Kutevedzera IEC-60950-1 kunonyanya kukosha kune maindasitiri uye ruzivo tekinoroji mashandisirwo, uko yakakwirira voltage masisitimu akajairika.

UL certification, kunyanya UL 796, inopa yakazvimirira kuyedzwa kuti ive nechokwadi chekuti mabhodhi emagetsi edunhu anosangana nevatengi uye maindasitiri ekuchengetedza zvinodiwa. Mabhodhi anofanirwa kupfuudza bvunzo dzekupisa (semuenzaniso, UL 94 V-0), kuratidza simba rakakwana redielectric pasi pekukwira kwemagetsi, uye kuchengetedza kuita kwavo munzvimbo dzine tembiricha yepamusoro. Pamusoro pezvo, UL-yakasimbiswa mabhodhi akamisikidzwa kuti atevedzere, kuve nechokwadi chekuti chikamu chese chinosangana nemirairo. UL certification inobatsira zvigadzirwa kuwana mvumo yemusika uye kuderedza njodzi dzemhosva, zvichipa vanogadzira mukana wemakwikwi.

Kutevedzera IPC-2221, IEC-60950-1, uye UL zviyero zvinova nechokwadi chekuti maHVPCB anozadzikisa zvinotarisirwa pasi rose. Aya mazinga haango chengetedza vashandisi kubva kunjodzi dzemagetsi asi zvakare anovimbisa kuti mabhodhi anoshanda akavimbika munzvimbo dzine njodzi dzakadai semhepo, michina yekurapa, uye michina yemaindasitiri. Nekutevera iyi mirau, vagadziri vanovandudza kuchengetedzwa kwechigadzirwa uye kuvimbika, kuderedza zvikwereti zvepamutemo, uye nekuona kuti zvigadzirwa zvavo zvinosangana nezvinodiwa pamisika inodzorwa.

mhedziso

Kugadzira bhodhi remagetsi ane simba guru kunoda kunyatsotarisa kusarudzwa kwezvinhu, dhizaini yemarongerwo, uye matekiniki ekugadzira kuti ive nechokwadi chekuti zvinhu zve laminate zvakanaka , ukobvu hwemhangura, uye kupedzisa kwepamusoro, mainjiniya vanogona kuderedza njodzi dzakadai se arcing uye dielectric breakdown. Kutevedzera mitemo ye creepage uye clearance kwakakosha kuti pave nekushanda kwakachengeteka munzvimbo dzinoda simba, kubva kumhepo kusvika kumidziyo yekurapa.

KuHighleap Electronic, isu tinonyanyogadzira PCB kugadzira uye kuungana, tichipa imwe-yekumira yemagetsi ekugadzira masevhisi akagadzirirwa kune yako yakakwirira voltage wedunhu bhodhi zvinodiwa. Unyanzvi hwedu mukusarudza zvigadzirwa zveprimiyamu uye kushandisa hunyanzvi hwekugadzira epamberi hunova nechokwadi chekuti madhizaini ako anosangana nekuchengetedza kwakanyanya uye maitiro ekuita.

Neaya maitiro akanakisa munzvimbo, mabhodhi emagetsi epamusoro anogona kutyaira matekinoroji emangwana, achigonesa kubudirira mune sainzi, mushonga, uye engineering. Nekubatana nesu, unogona kuve nechokwadi chekuti madhizaini ako haangoite zvakanaka chete asiwo anodzivirira vashandisi nemidziyo kubva kunjodzi dzinowanikwa dzeakakwira voltage masisitimu. Rega tikubatsire kuunza mapurojekiti ako ekutanga kuhupenyu nehuchokwadi uye nekuvimbika.