Chinobatanidza Bhodhi-ku-Bhodhi: Mhando, Magadzirirwo, uye Maitiro Ekusarudza Imwe

Chinobatanidza bhodhi nebhodhi chinoita semutsetse mudiki paBOM, asi ndicho chimwe chezvinhu zvinowanzo kukonzera kutadza kushanda zvakanaka mumagetsi akaunganidzwa: kubatana kunoitika panguva imwe chete, majoini akatsemuka, uye maconnector asingazobatana mushure mekunge nzvimbo yacho yavharwa. Chikonzero ndechekuti chinobatanidza chikamu chemakanika chinoita basa remagetsi, uye zvinodiwa zviviri izvi zvinodyidzana. Gwaro iri rinotsanangura zvakadzama mhuri dzezvinobatanidza, zvirevo zvinotungamira kusarudzwa, kusimba kwechiratidzo uye mitemo yemakanika yemagadzirirwo epitch yakanaka uye inokurumidza, uye ruzivo rwekusangana runosarudza kana chigadzirwa chebhodhi rakaunganidzwa chichipona mumunda - kusanganisira zviitiko apo danho rakangwara nderokubvisa chinobatanidza zvachose.

Pfungwa dziri pazasi dzinobva pane zvinotariswa nemainjiniya edu ekugadzira zvinhu paHighleap Electronics kana dhizaini ikabatanidza maPCB maviri kana anopfuura pamwe chete nezvinobatanidza zvebhodhi.

1. Chii Chinonzi Bhodhi-ku-Bhodhi? Mhando uye Mashandisirwo

Chinobatanidza bhodhi nebhodhi chinogadzira chinobatanidza chemagetsi nekanika pakati pemaPCB maviri pasina tambo inopindirana. Rimwe bhodhi rinotakura musoro (divi repini), rimwe rechinhu chinobatirira (divi resoketi), uye rinoabatanidza rinoita kuti aenderane nemazana ekubatana panguva imwe chete. Mhuri yaunosarudza inonyanya kurongeka nekuti mapuranga maviri aya akatarisana sei.

Mezzanine (yakafanana / inounganidza) zvinobatanidza

Chinobatanidza chemezzanine chinounganidza mabhodhi maviri akaenzana, akaparadzaniswa nekukwirira kwechikwata. Uku ndiko kurongeka kwebasa rezvigadzirwa zvidiki — makadhi emwanasikana, maRF nemasensa modules, uye masandwiched assemblies — uko nzvimbo yakatwasuka isingadhuri pane nzvimbo yebhodhi. Kureba kwechikwata inzira inotsanangura nekuti inoisa mukaha chaiwo pakati pemabhodhi.

Maitiro ekona yekurudyi, emucheto, uye emucheto wemakadhi

Chinobatanidza chekona yekurudyi chinobatanidza mabhodhi maviri pa90°, kazhinji apo kadhi remwanasikana rinobatirira zvakananga mubhodhi reamai. Zvinobatanidza zvepakati pemakadhi zvinoenderera mberi nekushandisa zvigunwe zvegoridhe zvakadhirowewa pamucheto webhodhi, zvichibvisa hafu yekubatanidza pamwe nemutengo wayo.

Hama dzemukomana dzinoti "cable-to-board" ne "wire-to-board"

Zvimwe zvine hukama hwakasimba ndezvinobatanidza waya kubva patambo kuenda pabhodhi uye waya kubva pabhodhi, izvo zvinogumisa waya kana waya pane kusanganisa PCB yechipiri. Zvinogadzirisa dambudziko rakasiyana - kubatanidza bhodhi kune chimwe chinhu chinofamba kana kugara kune imwe nzvimbo mu chassis - uye mhando diki dzakadai se 4-pin circuit board connector dziri kwese kwese mu consumer uye industrial hardware. Nzira yekusarudza (pitch, current, retention, mating cycles) yakafanana kunyangwe rimwe divi riri waya, ndosaka zvibatanidza zvePCB board-to-board uye zvikamu zve cable-to-board zvinowanzotsanangurwa kubva kumhuri imwe chete.

2. Magadzirirwo eConnector yeBhodhi-ku-Bhodhi

Pepa redata rekubatanidza rinoratidza ma parameter akawanda, asi mashoma anoita basa guru rekuderedza sarudzo.

Pitch ibhizinesi renzvimbo nerekusimba

Pitch — nzvimbo yepakati kubva pakati kusvika pakati pemacontacts — inotangira pa 2.54 mm yakakora kusvika pa 0.4 mm yakakora. Pitch yakakora inoisa macontacts akawanda munzvimbo shoma, ndosaka mafoni nezvipfeko zvinopfekwa zvichiishandisa, asi inoshivirira kusarongeka kushoma, inokuvadzwa nyore nyore nekubata zvisina kunaka, uye inoda kuiswa kwakasimba panguva yekubatanidza. Sarudza pitch yakakora kwazvo yaunobvumira nzvimbo yako, kwete yakanakisisa yaunogona kuwana.

Kudzivirira kwemagetsi, kukanganiswa, uye kusangana

Kubata kwega kwega kune chiyero chemagetsi, asi nhamba iyoyo inowanzo taurwa pakuwedzera kwekushisa kwakataurwa uye pakubata kumwe chete kwakazvimirira. Kune power rail, tsika yakajairika ndeyekubatanidza vanhu vakawanda uye kuderedza chiyero ichi sezvo tembiricha yemhepo ichikwira, nekuti chiyero chemagetsi chiripo kuti chiganhure kudziyisa kwega. Kudzivirira kwekubatana kwakaderera uye kwakasimba - mamirioni mashoma, anobatwa negoridhe-pamusoro-nickel plating - ndiko kunoita kuti kupisa ikoko kurambe kuchidzorwa uye kudzivirira kudonha kwemagetsi kunokanganisa vanhu vakasakara kana kusvibiswa.

3. Kuvimbika kweSignali uye Dhizaini yeMichina

Chinobatanidza chinogara apo makanika nemagetsi zvinosangana, saka zvinhu zviviri zvakasiyana zvinofanirwa kugadziriswa panguva imwe chete.

Kurongeka, kuyerera, kushivirira, uye kukiya

Mabhodhi maviri akabatanidzwa nechinobatanidza anofanira kuenderana mukati mehutongi hwechinobatanidza , izvo chikamu chegomba rakatsetseka chingatore sechikamu chemirimita; mamwe ma series anowedzera float kana self-aligning lead-ins kuti atore shanduko yebhodhi-ku-bhodhi. Bhajeti iroro rinofanira kukudzwa nehukuru hwebhodhi rako, maburi ekukwirisa, uye kumira - kwete chinobatanidza chega. Polarization uye keying zvinodzivirira operator kubva pakubatanidza chinobatanidza kana kudzoserwa shure, uye blind-mate assembly isingaonekwe apo enclosure inovhara inofanira kubatsira kushivirira kunokanganwira uye chamfers dzakajeka dze lead-in.

Masaini ekumhanya kwepamusoro anoita kuti chinongedzo chive chikamu chechiteshi

Kune ma "high speed digital" kana RF, "connector" chikamu che "transmission line". Kana "edge rates" yasvika nekukurumidza, "standard connector" inova "impedance discontinuity" inoratidza simba, inokwidza crosstalk, uye inopenya. Magadzirirwo e "high speed" anoshandisa "impedance-controlled connectors" ane "definited ground returns" uye "ground-to-signal contact ratio" yakakwana, uye "launch" kubva pabhodhi ichipinda mu "connector" inofanira kuchengetedza "controlled impedance" mukati mekuchinja kwese. Kuregeredza izvi kunoshandura "clean board layout" kuita "marginal link" pa "connector".

4. Kubatanidzwa kweConnector yeBhodhi neBhodhi, Kuvimbika, uye Zvimwe Zvimwe

Matambudziko mazhinji ekubatanidza mabhodhi haasi echinobatanidza - inyaya dzekubatanidza nekugadzira michina izvo chinobatanidza chinongoburitsa pachena.

Kushanda pamwe chete, kuchengetedza, uye kugadzirisa

Zvizhinji zvezvinobatanidza kubva pabhodhi kuenda pabhodhi zvinosungirirwa pamusoro, zvine matinji akawanda matete anofanira kubata mapedhi avo. Muviri wezvinobatanidza wakakombama zvishoma, kana bhodhi risina kutsetseka, rinosiya matinji kubva pamapedhi uye rinovhura - ndosaka kurongeka kwekuisa uye kudzora kudzokororwa kwemvura kuchikosha zvikuru panguva yeSMT assembly , uye nei coplanarity ichisimbiswa pakuongorora. Kumanikidzwa kwemuchina kubva pakubatanidza, kudedera, uye bhodhi rinotenderera kunodyara mumajoini e solder, saka zvibatanidza zvine makiyi ebhodhi, hold-downs, kana through-hole anchoring posts zvinorarama kwenguva yakareba kupfuura zvinochengetwa nema signal pads avo chete. Enzanisa chiyero che mating-cycle ne kuti chigadzirwa chinovhurwa kangani, uye chengetedza ma contacts akachena - flux residue kana marara zvinosimudzira resistance uye zvinokonzera kusagadzikana.

Kana chinobatanidza chisiri mhinduro chaiyo

Dzimwe nguva kubatana kwakavimbika kupfuura mamwe ese hakusi kubatanidza zvachose. Kana mapuranga maviri asingade kuparadzaniswa, chinongedzo chinowedzera mutengo, kukwirira, uye poindi yekukundikana pasina rubatsiro. Imwe nzira inowanzo shandiswa i- rigid-flex kana flex circuit inoita kuti zvikamu zviviri zvakasimba zvive bhodhi rimwe rinoenderera mberi rakabatana nechikamu chinochinjika, zvichibvisa kubatana kwekubatana, kuramba kwayo kusangana, uye kusakara kwayo - ona muchidimbu chedu chePCB dzinochinjika uye dzakachinjika . Kune kubatanidza kupfupi, kwakasimba pakati pemapuranga ari pedyo, castellated edge plating inobvumira bhodhi rimwe kuchinjika zvakananga kune rimwe senge module. Kune zvigadzirwa zvidiki, zvinokasira kudedera, kana kuti zvakavimbika zvakanyanya, dzimwe nzira idzi dzinowanzo bhadhara dzega.

5. Kubatanidza neKubatanidza Mabhodhi Akarongwa paHighleap

Mabhodhi akarongwa uye akabatanidzwa akajairika kwatiri, uye nzira dzekukundikana dzinogona kufanotaurwa — zvinoreva kuti dzinogona kudzivirirwa. Patinounganidza bhodhi rine zvibatanidza zvebhodhi-ku-bhodhi zvakanaka, tinochengetedza kurongeka kwenzvimbo uye tinochinja chimiro kuitira kuti lead yega yega igare papad yayo, toongorora kuti zvinoenderana here pakuongorora, uye tinoisa zvibatanidza zvinongovimba chete nemapadhi echiratidzo kuti zvirambe zvakanamirwa zvakanaka. Kana dhizaini ikarongedza mapuranga, tinosimbisawo kuti kukwirira kwestack yakasarudzwa uye hardware yemakanika zvinobvumirana zvisati zvagadzirwa kekutanga.

Kana chigadzirwa chako chikabatana nemabhodhi maviri kana kupfuura — nekubatanidza, castellation, kana rigid-flex — tumira dhizaini uye isu tichaongorora njodzi dzekubatanidza uye zvemakanika, tobva tazvivaka kuitira kuti kubatana kurambe kuripo pakubata, kudedera, uye munda. Kune magadzirirwo apo chinongedzo chakanyanya, tinogona kugadzira imwe nzira yekubatanidza iri rigid-flex panzvimbo pezvo.

Ongorora Dhizaini Yangu Yemapuranga Akaiswa Pamatanda

6. Mibvunzo Inowanzo bvunzwa Nezvekubatanidza Bhodhi-ku-Bhodhi

Chii chinonzi connector yebhodhi-ku-bhodhi?

Inobatanidza mabhodhi maviri edunhu akadhindwa zvakananga, pasina waya, nekubatanidza musoro pabhodhi rimwe rine mudziyo uri kune rimwe. Inoshandiswa kubatanidza mabhodhi muzvigadzirwa zvidiki uye inonyanya kutsanangurwa nekukwira kwayo, kukwirira kwematanda, uye chiyero chemagetsi.

Chii chinosiyanisa bhodhi-ku-bhodhi nechinobatanidza tambo-ku-bhodhi?

Chinobatanidza bhodhi nebhodhi chinobatanidza nePCB yechipiri; chinobatanidza tambo nebhodhi chinogumisa tambo kana waya inofamba kune imwe nzvimbo muchigadzirwa. Zvinodiwa pakusarudza — pitch, current, retention, mating cycles — zvakafanana, asi rumwe rutivi ibhodhi uye rumwe itambo.

Chii chinonzi kukwirira kwe stack mu mezzanine connector?

Kureba kwematanda (stack height) mukaha uripo pakati pemabhodhi maviri akafanana kana abatanidzwa, wakaiswa nepeya yemusoro nereceptacle yaunosarudza. Inofanira kuenderana nemechanical stack-up yako, saka inosarudzwa pamwe chete nestandoffs neenclosure dimensions, kwete yoga.

Ndingasarudza sei bhora rakakodzera?

Sarudza nzvimbo yakakombama zvikuru yaunogona kuwana. Nzvimbo dzakatetepa (dzinosvika 0.4 mm) dzinoisa zvinhu zvakawanda munzvimbo shoma asi dzinotsungirira kusarongeka kwakanyanya, dziri nyore kukuvara, uye dzinoda kudzorwa kwakasimba kwekubatanidza; nzvimbo dzakakombama dzakasimba zvikuru.

Chinobatanidza bhodhi nebhodhi chinogona kutakura magetsi akawanda sei?

Kubata kwega kwega kune chiyero chakataurwa pakuwedzera kwetembiricha kwakataurwa, kazhinji kune kubatwa kumwe chete. Kune mapower rails, batanidza macontacts akawanda wobva waderedza tembiricha painowedzera pane kuvimba nepini imwe chete kuti itakure tambo ine maamp akawanda.

Sei zvinobatanidza bhodhi-ku-bhodhi zvichikundikana pazvinobatanidza zvinosanganisa simbi?

Kazhinji dzinoiswa pamusoro pemadziro dzine tambo dzakawanda dzakatetepa, saka chinobatanidza chakakombama kana bhodhi risina kutsetseka rinosiya tambo dzichibuda pamapedhi adzo, uye kumanikidzwa kwemuchina kubva pakusangana, kudedera, uye kuchinjika kunotsemura majoini. Kusarudza zvinobatanidza zvine hunhu hwekuchengetedza uye kubata bhodhi rakatsetseka kuburikidza nekubatanidza kunodzivirira kutadza kukuru.

Ndirini pandinofanira kushandisa rigid-flex pachinzvimbo checonnector?

Kana mapuranga maviri aya asingambodi kuparadzaniswa. Dunhu rakamanikana rinoita kuti ave bhodhi rimwe rinoenderera mberi rakabatana nechikamu chinochinjika, zvichibvisa simba rekubatana kwechombo, kupera kwekubatana, uye nzvimbo dzekukundikana kwekubatana kwezvombo — zvinokosha muzvigadzirwa zvidiki, zvinodedera, kana kuti zvinovimbika zvakanyanya.