Foob: Potting thiab ca daim kab xev nyob rau hauv keyboards thiab relays

Ntau txoj hauv kev los tsim airtight seals hauv cov khoom siv hluav taws xob

Lub sijhawm dhau los, peb tau tham txog qhov tseem ceeb ntawm lub tshuab nqus tsev sealing iav rau hlau sealing hauv cov khoom siv hluav taws xob. Ib yam li ntawd, ib txoj kev hu ua encapsulation (tseem hu ua encapsulation) feem ntau yog siv los tsim cov pob kaw nruj nreem rau cov khoom siv hluav taws xob hloov hluav taws xob, suav nrog cov strips tiaj tus hauv cov khoom siv hluav taws xob siv hauv cov khoom siv hluav taws xob.

Dab tsi yog potting?

Nyob rau hauv potting, cov khoom siv hluav taws xob lossis cov khoom sib dhos yog tag nrho encapsulated nyob rau hauv cov khoom los yog gelatinous tebchaw uas muab kev poob siab thiab kev co kuj, nrog rau kev tiv thaiv los ntawm plua plav thiab lwm yam kab mob, nrog rau cov dej noo thiab corrosion. Cov txheej txheem feem ntau suav nrog immersing lossis txhaj cov khoom siv hluav taws xob rau hauv cov kua dielectric (xws li silicone, epoxy lossis polyurethane) thiab kho lawv. Rau void-free potting, cov khoom yuav muab tso rau hauv lub tshuab nqus tsev chamber thaum lub resin tseem ua kua; Lub tshuab nqus tsev yog rub thiab khaws cia kom nqus cua tawm ntawm cov kab noj hniav thiab cov resin, thiab tom qab ntawd tso tawm kom cov huab cua siab ua rau cov voids thiab quab yuam cov kua resin rau hauv cov ces kaum thiab cov kab nrib pleb.

Dielectric potting yog dav siv rau cov khoom siv hluav taws xob thiab tiv thaiv cov khoom siv hluav taws xob hauv xeev los ntawm ib puag ncig thiab kev puas tsuaj; Raws li ib qho ntxiv lawm, potting feem ntau muab cov qauv los tuav cov khoom ua ke.

Flat strips thiab Semiconductors: Lub zog qab lub xeev relays

Ntau qhov kev hloov pauv niaj hnub no siv cov khoom siv hluav taws xob hauv lub xeev (SSR) los tswj thiab ua kom tiav cov hluav taws xob hluav taws xob - siv lub zog hluav taws xob semiconductor ntawm lub tiaj tiaj los hloov tam sim no txog li 100 amperes. SSR yog ceev tshaj electromechanical relay; Tsis tas li ntawd, vim tias tsis muaj qhov txav mus los thiab tsis muaj kev sib cuag los ua rau cov hniav lossis cov pa roj carbon deposits, SSR muaj lub neej ua haujlwm ntev dua thiab cov khoom siv tsis tu ncua tsis hais txog kev siv.

Lub hwj chim semiconductors muaj cov khoom siv sib cais los yog feem ntau sib xyaw ua ke ntawm cov kab ncaj nraim uas siv los ua cov keyboards lossis rectifiers rau cov ntawv thov tam sim no lossis cov hluav taws xob siab xws li hloov cov khoom siv hluav taws xob. Qee cov cuab yeej siv hluav taws xob muaj xws li lub zog diodes, thyristors, MOSFEts, thiab insulated gate bipolar transistors (IGBT).

Radiators thiab tshem tawm cua sov los ntawm semiconductors

Txij li cov semiconductors tsis ua haujlwm zoo ntawm qhov kub thiab txias, cov khoom siv hluav taws xob hauv SSR xav tau cov radiators kom tshem tawm cov cua sov uas tsim los ntawm qhov kub thiab txias. Ntim muab ib txoj kev tshem tawm cov cua sov los ntawm cov khoom siv semiconductor los ntawm kev coj mus rau ib puag ncig sab nraud. Txuas lub hwj huam mov rau lub radiator kuj tshem tawm cov cua sov los ntawm kev ua haujlwm poob. Tsis tas li ntawd, encapsulation pab ua rau cov khoom siv semiconductor tsis tshua nkag siab rau yam xws li kev poob siab, kev co, av noo, thiab sab nraud magnetic teb.

Potting feem ntau yog siv los tsim cov pob khoom rau cov khoom siv semiconductor, suav nrog cov uas siv cov khoom siv tiaj tiaj. Foob encapsulation tseem tuaj yeem ua tiav los ntawm kev tso lub semiconductor nti hauv kab noj hniav ntawm lub pob thiab rub lub tshuab nqus tsev. Tom qab ntawd nws raug kaw nrog lub hau ceramic lossis hlau.

Raws li cov iav-rau-hlau ntsaws ruaj ruaj, nws yog ib qho tseem ceeb kom ntseeg tau tias thermal expansion ntawm cov khoom ntim yog sib xws nrog cov khoom siv silicon semiconductor. Nws tseem yog ib qho tseem ceeb los xyuas kom meej tias cov pav ca carbon strip tsis muaj cov kab nrib pleb, tawg, lossis lwm yam kev mob saum npoo uas tuaj yeem cuam tshuam qhov kev ncaj ncees ntawm cov ntim ntim. Ua tib zoo saib xyuas thiab ntsuas qhov ntsuas tam sim no (ECT) tuaj yeem ua rau ntawm lub tiaj tiaj kom paub tseeb tias nws tsis muaj qhov tsis zoo ntawm qhov chaw thiab qhov chaw. (Koj tuaj yeem nyeem ntxiv txog ECT hauv peb qhov blog dhau los - lossis zoo dua, hu rau lub tuam txhab txiav hlau!

Tsis tas li ntawd, yog tias posing resin raug txhaj ncaj qha rau hauv cov khoom siv hluav taws xob, nws yog ib qho tseem ceeb kom ntseeg tau tias cov cuab yeej tsim khoom raug tsim kom raug los muab cov khoom sib faib ua ke thiab tsim cov pob roj uas tsis muaj kev puas tsuaj rau cov khoom siv semiconductor hauv.

Kaw lub hnab ntawv nrog lub mercury hloov

Lwm hom khoom siv hluav taws xob uas feem ntau yog poached yog hloov mercury. Raws li lub npe qhia, mercury switches siv me me ntawm cov kua mercury los tig circuits rau thiab tawm. Vim tias txawm tias qhov poob ntawm mercury yog qhov nkag siab zoo rau lub ntiajteb txawj nqus, mercury muab lub peev xwm paub qhov tshwj xeeb rau cov cuab yeej siv hluav taws xob qis qis.

Lub mercury hloov pauv muaj ib txheej ntawm cov hluav taws xob tiv tauj nrog lub iav kaw uas muaj cov hlaws mercury; Lub hnab ntawv kuj tseem muaj cua, tsis muaj roj, lossis lub tshuab nqus tsev. Thaum qhov hloov pauv yog qaij, qhov hloov mercury ua tiav lossis txiav tawm lub voj voog, ua rau cov mercury tuaj rau hauv kev sib cuag lossis deb ntawm cov neeg sib cuag. Cov keyboards tuaj yeem muaj ntau yam kev sib cuag uas kaw cov neeg sib txawv ntawm cov ces kaum sib txawv kom nkag siab txog kev txav mus los ntawm kev sib txawv.

Vim tias mercury yog cov hlau uas muaj kuab lom, nws txoj kev siv thiab pov tseg tau raug tswj xyuas nruj thiab tau hloov ntau cov ntawv thov yav dhau los rau cov mercury keyboards ntau xyoo. Piv txwv li, lawv siv nyob rau hauv lub tsheb tshiab - rau tej yam xws li teeb pom kev zoo tswj thiab antilock braking systems - twb txiav lawm nyob rau hauv lub tebchaws United States ntau tshaj kaum xyoo dhau los. Txawm li cas los xij, mercury keyboards tseem ua lub luag haujlwm tseem ceeb hauv cov khoom siv kev nyab xeeb, xws li qaij keyboards siv los ceeb toom cov khoom siv ntawm rollops lossis rollops. Nyob rau hauv dav hlau, hluav taws xob tus cwj pwm ntsuas (aka dag horizons) tseem siv mercury keyboards kom lub gyroscope axis perpendicular. Mercury keyboards kuj tseem siv los ua lub tswb nrov hauv qee lub tshuab muag khoom, ua kom cov keyboards kom suab lub tswb thaum lub tshuab shakes lossis qaij.

Cua nruj hauv qab kab

Txawm hais tias peb' tab tom tham txog iav sib txuas rau hlau hauv qhov muag teeb, semiconductor encapsulation nrog cov strips tiaj tus hauv cov khoom siv hauv lub xeev relays, lossis lub hnab ntawv hauv cov mercury keyboards, kom ntseeg tau tias kev sib khi yog qhov tseem ceeb rau huab cua nruj. Kev ua haujlwm nrog cov neeg koom tes tsim nyog yuav pab xyuas kom meej tias cov khoom siv hluav taws xob tseem ceeb thiab cov txheej txheem no raug sim hauv cov saw hlau los tsim cov txiaj ntsig xav tau.

Thov hu rau peb ntawm zhang@pride-cnc.com