Choyambirira: Kuwala kwa Zipangizo
Mu kuwerengera kwa chiphunzitso, timaganiza kuti mtengo wa AL wa core yomweyo ya maginito ndi wokhazikika ndipo sitiganizira za momwe zinthu zina zimakhudzira mtengo wa AL. Komabe, pakugwiritsa ntchito kwenikweni, mtengo wa AL umakhudzidwa ndi zinthu zosiyanasiyana. Nkhaniyi ifotokoza izi ndi zitsanzo kuchokera kwa mamembala a gulu.
Ndili ndi magnetic core yokhala ndi ma coil a 8Ts, ndipo inductance yoyesedwa ndi pafupifupi 5.3uH; Koma nditayesa ndi coil ya 80Ts, inductance inali 610uH. Chifukwa chiyani izi?
Mwachidule, ma 80T ayenera kukhala pafupifupi 530uH. Kuyesa kwa coil imodzi kumagwiritsa ntchito maginito awiri omwewo ndi mtundu uwu wa coil yathyathyathya.
Jambulani chithunzi cha chinthu chonsecho, kuphatikizapo mawonekedwe a magnetic core ndi coil, ndipo ngati pali mpweya wochepa? Fakitale ya magnetic core imatanthauziranso mtengo wa AL ngati ma turns 10, ndipo cholakwika chachizolowezi sichili chachikulu kwambiri.
Pamene chiwerengero cha ma turns chili chochepa, chiwerengero cha leak inductance kupita ku inductance chidzakhala chachikulu, kotero cholakwika cha inductance chidzakhala chachikulu pamene chiwerengero cha ma turns chili chochepa; Kuphatikiza apo, flat coils zidzakulitsa izi, ndipo ngati ndi coil wamba, zotsatira zake zingakhale zochepa.
Vuto lina ndi kupotoka kwa mayeso. Pamene chiwerengero cha ma turns chili chochepa, kutengeka kumakhala kochepa, ndipo zotsatira za hysteresis zimakhudza kwambiri kupotoka kwa kuyesa kwa kutengeka; Zachidziwikire, palinso kuthekera kuti magnetic core imadzaza pamene chiwerengero cha ma turns chili chochepa, kotero mtengo wa kutengeka kwa mayeso siwowona.
Pali mpweya wochepa, ndipo chithunzi cha chinthucho chili motere:
Ma AL onse ndi ma test values opanda air gap, kotero ndi zachilendo kuti mukhale ndi air gap.
Apa tifunika kuganizira za mphamvu ya mpweya woipa. Kodi ndi mtundu wanji wa maginito ndi zinthu ziti? Kodi mpweya woipawo ndi wozama bwanji?
Pachifukwa ichi, ndinayamba kuganiza kuti chinali chifukwa cha kusiyana kwa mpweya. Kutengera ndi ma formula ndi mfundo zazikulu mu nkhani yakuti “Kuwerengera ndi Kufotokozera Chitsanzo cha Kusiyana kwa Mpweya mu Transformers”, kuwerengera koyenera kunachitika.
Kuyerekeza kukuwonetsa kuti mphamvu ya mipata ya mpweya si yofunikira kwambiri. (Sikubwerezedwanso pano. Anthu okhudzidwa akhoza kuwerengera ndikuyerekeza kusiyana kwa kukhudzidwa mwa kuphatikiza ma formula ndi magawo oyambira a maginito cores.)
Makamaka pa core yomweyo ya maginito, kusiyana kwa mpweya kumakhala kokhazikika. 80TS ndi ya mkhalidwe wokhala ndi ma turn ambiri. Kuphatikiza ndi kapangidwe kake, ndinaganiziranso za fomula L=(0.01 * D * N * N)/(L/D+0.44) ya ma hollow coils. Pamene chiwerengero cha ma turns chikukwera, inductance ya turn iliyonse imawonjezeka.
Pankhani ya magulu ambiri, chinthu ichi chidzakhala ndi gawo lalikulu, zomwe zimapangitsa kuti kufotokozerako kukhale komveka.
Palinso deta yomwe ikusonyeza kuti pamene chiwerengero cha ma turns chikuwonjezeka, inductance coefficient imawonjezeka chifukwa kutembenuka kulikonse mu coil ndikofanana ndi kupanga magnetic flux, yomwe imawonjezeka ndi chiwerengero cha ma turns.
Kutengera ndi kafukufuku wa nkhaniyi, ndatsimikizira milandu ina ingapo, ndipo pankhaniyi, inductance ndi yayikulu kwambiri. Tsoka ilo, pakadali pano palibe njira yolondola yofotokozera mwachidule izi.
Zikuoneka kuti popanga zinthu zambiri, ma transformer amafunika kugwiritsa ntchito coil yomweyo kuti athetse mpweya woipa, ndipo palinso zinthu zina zofunika kuziganizira pankhaniyi.
Nthawi yotumizira: Feb-25-2025
