A halin yanzu, abin da aka saba amfani dashikayan rufiDomin DC igiyoyi ne polyethylene. Koyaya, masu bincike suna ci gaba da neman ƙarin yuwuwar abubuwan rufewa, kamar polypropylene (PP). Duk da haka, yin amfani da PP azaman abin rufewa na USB yana ba da matsaloli da yawa.
1. Kayayyakin Injini
Don saduwa da ainihin buƙatun don sufuri, shigarwa, da kuma aiki na igiyoyi na DC, dole ne kayan haɓakawa su mallaki wasu ƙarfin injiniya, ciki har da sassauci mai kyau, haɓakawa a lokacin hutu, da kuma juriya na ƙananan zafin jiki. Duk da haka, PP, a matsayin polymer crystalline sosai, yana nuna rashin ƙarfi a cikin kewayon zafin aiki. Bugu da ƙari, yana nuna ɓarna da lahani ga fashewa a cikin ƙananan yanayin zafi, rashin cika waɗannan sharuɗɗan. Don haka, dole ne bincike ya mayar da hankali kan ƙarfafawa da gyara PP don magance waɗannan batutuwa.
2. Resistance Tsufa
A lokacin amfani na dogon lokaci, murfin kebul na DC sannu a hankali shekaru saboda haɗakar tasirin babban ƙarfin filin lantarki da hawan keken zafi. Wannan tsufa yana haifar da raguwa a cikin kayan aikin injiniya da kayan haɓakawa, da kuma raguwar ƙarfin rushewa, yana haifar da aminci da rayuwar sabis na kebul. Tsufa na kebul ya haɗa da injina, lantarki, thermal, da sinadarai, tare da tsufa na lantarki da zafin zafi shine mafi mahimmanci. Ko da yake ƙara antioxidants na iya inganta juriya na PP zuwa tsufa na oxidative na thermal zuwa wani ɗan lokaci, rashin daidaituwa tsakanin antioxidants da PP, ƙaura, da ƙazantansu kamar yadda addittu suka shafi aikin rufin PP. Saboda haka, dogaro kawai da antioxidants don haɓaka juriya na tsufa na PP ba zai iya biyan tsawon rayuwa da buƙatun amincin kebul na USB ba, yana buƙatar ƙarin bincike kan gyara PP.
3. Ayyukan Insulation
Cajin sararin samaniya, a matsayin ɗaya daga cikin abubuwan da ke tasiri inganci da tsawon rayuwar suhigh-voltage DC igiyoyi, yana tasiri sosai akan rarraba filin lantarki na gida, ƙarfin dielectric, da tsufa kayan abu. Abubuwan da aka haɗa don igiyoyi na DC suna buƙatar murkushe tarin cajin sararin samaniya, rage allurar cajin sararin samaniya-polarity, da hana haɓakar cajin sararin samaniya wanda ba kamar polarity ba don hana murdiya filin lantarki a cikin rufi da musaya, tabbatar da ƙarfin rushewar da ba ta dace ba. tsawon rayuwar kebul.
Lokacin da igiyoyin DC suka kasance a cikin filin lantarki na unipolar na tsawon lokaci, electrons, ions, da ionization na ƙazanta da aka haifar a kayan lantarki a cikin rufin sun zama cajin sarari. Waɗannan tuhume-tuhumen suna yin ƙaura da sauri suna taruwa cikin fakitin caji, waɗanda aka sani da tarin cajin sararin samaniya. Don haka, lokacin amfani da PP a cikin igiyoyi na DC, gyare-gyare ya zama dole don murkushe haɓakar caji da tarawa.
4. Thermal Conductivity
Saboda rashin kyawun yanayin zafi, zafi da aka haifar yayin aiki na igiyoyin DC na tushen PP ba zai iya bazuwa da sauri ba, yana haifar da bambance-bambancen zafin jiki tsakanin bangarorin ciki da na waje na rufin rufin, ƙirƙirar filin zafin jiki mara daidaituwa. Ayyukan lantarki na kayan polymer yana ƙaruwa tare da yanayin zafi. Sabili da haka, gefen waje na rufin rufi tare da ƙananan haɓakawa ya zama mai sauƙi don cajin tarawa, yana haifar da raguwar ƙarfin wutar lantarki. Bugu da ƙari, ƙananan zafin jiki yana haifar da allura da ƙaura na adadin cajin sararin samaniya, yana kara murguda filin lantarki. Girman yanayin zafin jiki, ƙarin tarin cajin sararin samaniya yana faruwa, yana ƙaruwa da murɗawar filin lantarki. Kamar yadda aka tattauna a baya, yawan zafin jiki, tara cajin sararin samaniya, da kuma murdiya filin lantarki suna shafar aiki na yau da kullun da rayuwar sabis na igiyoyin DC. Don haka, haɓaka ƙarfin wutar lantarki na PP ya zama dole don tabbatar da amintaccen aiki da tsawon rayuwar sabis na igiyoyin DC.
Lokacin aikawa: Janairu-04-2024