Macapacitor emagetsi akagadzirwa nemaoko anoshandiswa muDC-link circuits

Macapacitor emagetsi akagadzirwa nemaoko anoshandiswa mumasekete eDC-link Mufananidzo Wakafanotaurwa

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Macapacitor efirimu ane metallized ndiwo mamwe emacapacitor anonyanya kushandiswa mumagetsi emazuva ano asi macapacitor efirimu ane simba shoma anowanzo shandiswa pakubatanidza nekusefa.

Ma capacitor emagetsi emagetsi anoshandiswa zvakanyanya muDC-link circuits, pulsed lasers, X-ray flashes, uye phase shifters

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Tsanangudzo

Hunhu hwema "film capacitors" hunosiyana zvichienderana nezvinhu zvinoshandiswa pakugadzira "dielectric" pamwe chete nehunyanzvi hwekuvaka hunoshandiswa. Mamwe ema "plastic film dielectrics" anonyanya kushandiswa anosanganisira polyethylene naphthalate (PEN), polyethylene terephthalate (PET), uye polypropylene (PP).

Macapacitor epurasitiki efirimu anogona kuiswa muzvikamu zvakasiyana-siyana muzvikamu zvemacapacitor efirimu/foil nemetallized film capacitors. Chimiro chikuru checapacitor yefirimu/foil chine maelectrode maviri esimbi efoil uye dielectric yefirimu yepurasitiki pakati pawo. Macapacitor efirimu/foil anopa kudzivirira kwakanyanya kupinza, kugona kubata pulse zvakanyanya, kugona kutakura magetsi zvakanaka, uye kugona kugadzikana zvakanaka. Kusiyana nemacapacitor efirimu/foil, macapacitor efirimu esimbi anoshandisa mafirimu epurasitiki akaputirwa nesimbi semaelectrodes. Macapacitor efirimu esimbi ane saizi shoma, uye anopa kushanda zvakanaka kwevolumetric, kugona kugadzikana kwakanaka, kurasikirwa kwakaderera kwedielectric, uye kugona kuzviporesa kwakanaka. Mamwe macapacitor imhando yemacapacitor efirimu/foil uye macapacitor efirimu esimbi uye ane hunhu hwemhando dzese dziri mbiri. Hunhu hwekuzviporesa hwemacapacitor efirimu esimbi hunoita kuti akwanise kushandiswa zvakasiyana-siyana, kusanganisira macircuit ehupenyu hurefu uye macircuit ekusashanda zvakanaka.

Kuzviporesa kwesimbi dzakagadzirwa nemafirimu capacitors

Zvishandiso zvepurasitiki zvemafirimu zvinoshandiswa pakugadzira macapacitor efirimu ane simbi zvinosanganisira polypropylene (PP), polyphenylene sulfide (PPS), polyester, uye pepa rine simbi (MP). Zvinhu izvi zvemafirimu zvine hunyanzvi hwakasiyana hwekuzviporesa.

Kana paine kuputsika kwesimbi mu capacitor yefirimu yakagadzirwa nesimbi, kutenderera kunoita kuti simbi yakatetepa yakatenderedza nzvimbo ine zvikanganiso itsvuke. Maitiro aya ekupfavisa anobvisa simbi inofambisa mhepo munzvimbo yakatenderedza zvikanganiso. Sezvo chinhu chinofambisa mhepo chabviswa, denderedzwa pfupi harigone kuitika pakati pemaplate. Izvi zvinodzivirira kutadza kwechikamu.

Kugona kuzviporesa kwesimbi yakagadzirwa nefirimu capacitor kunoenderana nezvinhu zvakawanda zvinosanganisira hunhu hwezvinhu zve dielectric uye ukobvu hwesimbi. Maitiro ekupwisa anoda huwandu hwakakwana hweokisijeni nezvinhu zve dielectric zvine oxygen yakawanda pamusoro zvine hunhu hwakanaka hwekuzviporesa. Mamwe ema dielectric epurasitiki ane hunhu hwakanaka hwekuzviporesa anosanganisira polypropylene, polyester ne polycarbonate. Kune rumwe rutivi, ma dielectric epurasitiki ane oxygen shoma pamusoro ane hunhu hwakaipa hwekuzviporesa. Polyphenylene sulfide (PPS) ndeimwe yezvinhu zvakadaro zve dielectric.

Kunze kwekuwedzera kuvimbika, kugona kuzvirapa kwesimbi dzakagadzirwa nemafirimu kunobatsira kuvandudza hupenyu hwadzo hwekushanda. Zvisinei, kuzvirapa kunokonzera kudzikira kwenzvimbo yesimbi dzakagadzirwa nemaelectrode nekufamba kwenguva.

Mukushandiswa, mamwe emamiriro ezvinhu anogona kukurumidzisa kutadza kwechikamu anosanganisira tembiricha yakakwira, mavoltage akakwira, mheni, hunyoro hwakawanda, uye kupindira kwemagetsi (EMI).

Kunze kwehunhu hwakanaka hwekuzviporesa, macapacitor epolyester film ane metallized ane dielectric constant yakanyanya, tembiricha yakanaka yakagadzikana, simba re dielectric rakawanda, uye kugona kwakanaka kwe volumetric. Hunhu uhwu hunoita kuti ma capacitor aya akwane kushandiswa kwakajairika. Macapacitor epolyester ane metallized anoshandiswa zvakanyanya muDC applications dzakadai sekuvhara, kuyambuka, kubvisa, uye kudzvinyirira ruzha.

Macapacitor epolypropylene ane simbi anopa simba rekudzivirira kupisa, kunyudzwa kwe dielectric shoma, kurasikirwa ne dielectric shoma, simba re dielectric rakawanda, uye kugadzikana kwenguva refu. Izvi zvikamu zvinoshandisa nzvimbo zvakanyanya zvinoshandiswa mumashandisirwo akabatanidzwa ne mains akadai se filter circuits, lighting ballasts, uye snubber circuits. Macapacitor epolypropylene ane simbi mbiri anogona kutsungirira high voltage uye high-pulse loads, uye akakodzera kushandiswa ane mukana wepamusoro we steep pulses. Ma capacitor aya anowanzo shandiswa muma motor controllers, snubbers, switch mode power supplies, uye monitors.

Mhedziso

Kuvimbika uye hupenyu hwekushanda kwema capacitor zvinoenderana zvakanyanya nehunhu hwawo hwekuzviporesa. Zvikamu zvisingashande zvine hunhu hwakanaka hwekuzviporesa zvinovimbika uye zvinopa hupenyu hurefu hwekushanda. Hunhu hwakanaka hwekuzviporesa hwema capacitor efirimu ane metallized hunovandudza kusimba kwawo uye hunoita kuti akwanise kushandiswa kakawanda. Pamusoro pezvo, zvikamu izvi zvakasimba zvinokundikana kushanda zvakanaka, uye izvi zvinoita kuti zvive zvakanaka kune zvishandiso zvinoda zvikamu zvine nzira yakachengeteka yekukundikana.

Kune rumwe rutivi, hunhu hwekuzviporesa hwemacapacitor efirimu ane simbi hunoita kuti kurasikirwa kuwedzere uye simba rese ridzike. Kunze kwehunhu hwakanaka hwekuzviporesa, macapacitor efirimu ane simbi akawanda anopawo simba rekupwanyika kwakanyanya uye kushanda zvakanaka kwevolumetric.

Kuti uwane rumwe ruzivo nezve capacitor yefirimu, ndapota dhawunirodha katalogu yeCRE.