Ingundoqo yeIsifudumezi se-Ev PTCIxhomekeke kwiimpawu zezinto ezibonakalayo ze-PTC positive temperature coefficient thermistor, idityaniswe nenkqubo yombane ene-high-voltage kunye nesekethe yolawulo lobushushu bezithuthi zombane ukuze kufezekiswe ukufudumeza. Ngokusisiseko, amandla ombane aguqulwa ngokuthe ngqo abe ngamandla obushushu, aze emva koko adluliselwe kwikhabhini okanye kwibhetri ngesixhobo esiphakathi (i-coolant/air). Ineempawu ezizilawulayo nezizilawulayo kuyo yonke inkqubo, ngaphandle kwesidingo sezixhobo ezongezelelweyo zokulawula ubushushu ezintsonkothileyo, nto leyo eyenza ukuba ibe sisisombululo sokufudumeza esisebenzayo nesikhuselekileyo kwizithuthi ezintsha zamandla.
Inkqubo iyonke yahlulwe yaba ziingqimba ezimbini: imigaqo yezinto ezisisiseko kunye nomsebenzi wokwenyani wokusetyenziswa kweemoto. Le yokugqibela inokwahluka kancinci ngokuxhomekeke kwimeko yesicelo (ukufudumeza ikhabhathi/ukufudumeza ibhetri). Eyona nto iphambili yokusetyenziswa kweemoto yileizifudumezi zePTC ezipholileyo ezingamanzi(utshintsho lobushushu olupholileyo), ngelixa inani elincinci lokufudumeza ikhabhathi lisebenzisa izifudumezi ze-PTC ezifudunyezwa ngumoya (utshintsho lobushushu lomoya ngqo). Oku kulandelayo kuchazwa ngokulandelelanayo:
1, Umongo osisiseko: Umgaqo wobushushu wokufudumeza kunye nokuzikhawulela we-PTC thermistor
Into eyintloko yokufudumezaIsifudumezi se-PTCyi-PTC ceramic sheet (i-barium titanate based semiconductor ceramic doped with trace rare earth elements), eyinengcambu yazo zonke iimpawu zayo:
Ukufudumeza: Iitships ze-PTC ceramic zenza iindlela zokuqhuba ezineenkozo zokuqhuba zangaphakathi kwi-voltage elinganisiweyo (i-DC ephezulu yombane yokusetyenziswa kweemoto, efana ne-300V+/400V+), ivelisa ubushushu beJoule xa umbane udlula, ifezekisa ukuguqulwa ngokuthe ngqo kwamandla ombane abe ngamandla obushushu ngokusebenza kakuhle kokufudumeza (phantse kwi-100%, akukho lahleko yokuguqulwa kwamandla);
Ubushushu obuzikhawulelayo (uphawu oluphambili): Xa ubushushu beetships ze-ceramic ze-PTC bungafikeleli kubushushu beCurie (ubushushu obubalulekileyo bezinto, ngokubanzi yi-120-180 ℃ yokusetyenziswa kweemoto), ixabiso lokumelana lincinci kakhulu, kwaye ubushushu obuphezulu obuqhubekayo kunye nobushushu obuphezulu buyenzeka, nto leyo ebangela ukuba ubushushu bunyuke ngokukhawuleza;
Xa ubushushu bugqitha ubushushu beCurie, indlela yangaphakathi yokuqhuba iya kwaphuka ngokukhawuleza, kwaye ukumelana kuya kwanda ngokukhawuleza (ukuya kuthi ga kwi-10 ³~10 ⁶ amaxesha ukumelana kubushushu begumbi). Ngokomthetho ka-Ohm (P=U ²/R), phantsi kombane ongaguqukiyo, amandla okufudumeza aya kuncipha kakhulu, kwaye izinga lokufudumeza liya kuba ngaphantsi kunezinga lokusasaza ubushushu. Ubushushu ngokwemvelo buya kuzinza kufutshane nobushushu beCurie kwaye abuyi kuqhubeka bunyuka, kuthintelwe ukutsha okomileyo kunye nokugqithisa okugqithisileyo okusuka kwingcambu;
Ukuzihlaziya ngokwakho: Xa ubushushu buhla ngaphantsi kobushushu beCurie ngenxa yokusasazeka kobushushu (njengokupholisa/ukuhamba komoya), ukuxhathisa kuya kubuyela kwimeko yokuxhathisa ephantsi, kuqalise ukufudumeza ngamandla aphezulu, kwaye kufezekise ukuzilawula kwamandla obushushu ngokwawo.
2, Isisombululo esiphambili sokusetyenziswa kweemoto: Inkqubo yokusebenza yeheater ye-PTC epholileyo engamanzi (esetyenziswa ngokubanzi ekufudumaleni kwekhabhathi/ibhetri)
Ngaphezulu kwe-90% yezithuthi zombane zisebenzisa izifudumezi ze-PTC ezipholileyo ezinoxinzelelo oluphezulu (isakhiwo esincinci, utshintshiselwano lobushushu olufanayo, olufanelekileyo kwisekethe yomoya ofudumeleyo wekhabhinethi kunye nesekethe yokulawula ubushushu bebhetri), ezidityaniswe kwisekethe yokujikeleza kokupholisa yezithuthi ezintsha zamandla. Ukufudumeza ikhabhinethi kunye nebhetri kufezekiswa kuphela ngokutshintsha phakathi kweesekethe ezahlukeneyo zenkqubo yokufudumeza ye-PTC efanayo. Inkqubo ephambili iyafana, yahlulwe yangamanyathelo amane:
Ukuqalisa kombane: Isithuthi i-VCU (iYunithi yoLawulo lweeMoto) sithumela isignali yokuqalisa kwi-heater ye-PTC ngokusekelwe kumyalelo we-air conditioning yekhabhini/isignali yesenzi sobushushu bebhetri (ukuba ibhetri kufuneka ifudumale ngaphantsi kwe-5 ℃), kwaye kwangaxeshanye iqhagamshela isekethe yombane yebhetri yesithuthi ene-voltage ephezulu. Amandla e-DC ane-voltage ephezulu afakwa kwi-PTC heating element;
Ukuguqulwa kombane ukuya kubushushu: Iipleyiti zeseramikhi ze-PTC zikhawuleza zivelise ubushushu phantsi kombane ophezulu, zifikelele kubushushu bokusebenza kwimizuzwana embalwa, kwaye ubushushu budluliselwa kwigumbi lokusasaza ubushushu/ityhubhu yokutshintshiselana nobushushu yeheater ye-PTC;
Utshintsho lobushushu lweColant: Ipompo yamanzi ye-elektroniki yenkqubo yolawulo lobushushu yesithuthi iqhuba i-coolant ukuba ijikeleze kwiityhubhu zokutshintshiselana kobushushu ze-PTC heater. Emva kokufunxa ubushushu obuvela kwi-PTC heating element, i-coolant iba yi-coolant enobushushu obuphezulu (ngesiqhelo i-40-60 ℃, ihlengahlengiswe ngokwemfuno);
Ukudluliselwa kobushushu
Ukufudumeza iikhabhini: Isipholisi esinobushushu obuphezulu singena kwisiseko somoya ofudumeleyo ngaphakathi emotweni, kwaye umtshisi womoya opholileyo wesithuthi utyhala umoya obandayo ngaphakathi kwisiseko somoya ofudumeleyo. Umoya obandayo ufunxa ubushushu besipholisi kwaye ube ngumoya oshushu, othunyelwa emotweni ngesithuba somoya ukuze kufunyanwe ukufudumeza iikhabhini;
Ukufudumeza ibhetri: Isipholisi sobushushu obuphezulu singena ngqo kwipleyiti epholisiweyo ngamanzi/isekethe yokutshintshiselana kobushushu yebhetri yamandla, kwaye sifudumeza imodyuli yebhetri ngokulinganayo ngokuhambisa ubushushu, sinyusa ubushushu bebhetri ukuya kuluhlu olufanelekileyo lokutshaja nokukhupha (ngokubanzi yi-10-35 ℃), sisombulula iingxaki zokuwohloka kokunyamezela kobushushu obuphantsi kunye nokutshaja nokukhupha okulinganiselweyo.
Isihlomelo: Emva kokuba i-coolant igqibe ukutshintshiselana ngobushushu, ubushushu buyancipha buze bubuyele kwi-PTC heater ngombhobho ukuze bufunxe ubushushu kwakhona, benze umjikelo ovaliweyo kwaye bufudumale rhoqo; Xa ikhabhathi/ibhetri ifikelela kubushushu obujoliswe kubo, i-VCU iyanqumla umbane we-PTC ophezulu kwaye iyeke ukufudumeza.
3, Isisombululo esincinci: Ukuhamba komsebenzi we-heater ye-PTC eshushu ngumoya (isetyenziselwa kuphela ukufudumeza ikhabhathi okungaphelelanga)
Ukufudumeza iikhabhini zezinye iimoto ezincinci zombane kunye neemodeli ezikumgangatho ophantsi kuya kusebenzisa izifudumezi ze-PTC ezipholileyo ngomoya (ngaphandle kokutshintshana kobushushu okupholileyo, ukufudumeza umoya ngokuthe ngqo), kunye nesakhiwo esilula kunye nenkqubo ephambili ye:
I-PTC ceramic heating element engenisa amandla aphezulu ivelisa ngokuthe ngqo amandla obushushu;
Isitshizi somoya esipholileyo sivuthela umoya obandayo phezu komphezulu we-PTC heating element, kwaye umoya obandayo utshintshiselana ngokuthe ngqo nobushushu nepleyiti yeseramikhi yePTC enobushushu obuphezulu, ibe ngumoya oshushu;
Umoya oshushu uthunyelwa ngqo kwikhabhini ngeplagi yomoya ukuze kufunyanwe ubushushu obukhawulezayo.
Iingxaki: Ukudluliselwa kobushushu okungalinganiyo, umoya oshushu wengingqi, kunye ne-PTC heating element zidibana ngqo nomoya, nto leyo efuna ukhuseleko oluphezulu lothuli namanzi. Ke ngoko, isetyenziswa kuphela kwiimoto ezincinci ezingabizi kakhulu, kwaye ukupholisa ulwelo kusetyenziswa kwiimoto ezintsha zamandla eziphakathi ukuya kweziphezulu.
Ixesha lokuposa: Jan-30-2026
