Chii chinonzi Battery Compartment?
"Mupanda"inoreva chimiro chemukati mukati mebhatiri paki inobata nekuronga maseru. Zvinonzwika zviri nyore, asi tsananguro chaiyo yezwi iri inosiyana zvakanyanya kubva kukambani kuenda kukambani. Pandakanga ndiri kuRivian, munhu wese akaitumidza kuti "cell carrier." Mushure mekunge ndatamira kune mutengesi weKorea Tier-1, magwaro ese emukati akaitumidza se "module yedzimba." Chinhu chimwe chete, zita rakasiyana.
Ndave ndiri muindastiri iyi kwemakore gumi nerimwe, uye pamwe ndapedza nguva yakawanda pakugadzira kamuri kupfuura pane chero imwe subsystem. Hazvirevi nekuti tekinoroji pachayo yakanyanya kuoma; imhaka yekuti yakanyatsobatanidzwa pamwe nezvimwe zvese. Shandura imwe dimension yekamuri, uye unofanira{{3}kumhanyisa zvakare kupisa, dhizaini, uye dhizaini yegungano zvakare.
Rega nditarise simba rekuzvimba kwesero - apa ndipo pandakapinda mumakomba akawanda.
Wese munhu anoziva masero eprismatic anozvimba panguva yekuchaja / kuburitsa, asi kuwanda kwaanozvimba kunosiyana zvakasiyana zvichienderana nedata remupi. Ndakaona madhetabheti eCATL achida 8% kuzvimba kwehupenyu hwakapihwa, nepo Samsung SDI inonyora gumi nemaviri muzana sero rinofananidzwa. Paunobvunza mainjiniya avo, vanoti "zvakasiyana bvunzo mamiriro." Nderipi rakarurama? Hapana anonyatsoziva. Saka mukugadzira, tinogara tichitora yakaipisisa-case value (12%) tozoisa imwe 1.2× security factor.
Muna 2021, ndakashanda purojekiti yeUS OEM (handigone kuvadoma mazita). Makombiti ekupedzisira mahwendefa aive 2.5 mm simbi yakadhindwa. Takamhanyisa akawanda eCAE iterations - kushushikana uye deformation zvese zvaitaridzika zvakanaka. Zvino, ingangoita mwedzi gumi nemina mushure meSOP, kutadza kushanda kwakatanga kupinda mukati. Patakadambura mapaketi, marata ekugumisira akanga atorerekera kunze. Magapu akaonekwa pakati pegap filler nendiro inotonhora, kupisa kwemafuta kwakapfurwa, uye mamwe maseru aimhanya 7-8 degrees kupisa kupfuura vavakidzani vavo. Iyo BMS haina kukanda chikanganiso nekuti yakanga isati yasvika pachikumbaridzo, asi kukurumidza kuchembera kwaisadzivisika. Takazochinja kuita 4 mm die-cast aluminum end plates uye nyaya yakabva yanyangarika.(Ini handisi kuzotaura kuti yakawanda sei iyo rework bill yakatarisa.)
Sei simulation isina kuibata?
Nekuti kuzvimba-kumanikidzira kese kwatakaisa muCAE kwakangoipa. Data yemugadziri wesero yakayerwa pa25 degree. Muchokwadi, kana mota ichityaira ichitenderera Phoenix muzhizha, tembiricha yepakiti inogara ichipfuura 45 degree. Electrolyte thermal expansion + yakamhanyisa SEI kukura=chaiyo yekuzvimba simba iri pamusoro zvikuru kupfuura kukosha kwedatabase. Hapana anoziva kunyatsowedzera. Mushure menjodzi iyoyo, handichavimbi nekuenzanisa ndega zvakare - isu tave kurayira kupisa{11}}chamber yepamusoro-tembiricha yekutenderera bhasikoro padhizaini yega yega.
Cylindrical masero inyaya yakasiyana zvachose.
Kune 21700s kana 4680s, yakawanda yavo radial kuoma kunobva mugaba pacharo; axial kuwedzera idiki. Izvo zvinonyanya kunetsa inzvimbo uye kugadzirisa nzira.
Tesla's 4680 structural pack inzira inonakidza: maseru anobatanidzwa zvakanangana neanonamira kune ekumusoro neazasi mapepa, zvinobudirira kushandura maseru kuita mitoro{1}}inotakura nhengo.
Kubatsira kukuru:kubvisa huremu hwekamuri yechinyakare.
Kukanganisa kukuru:zero serviceability - sero rimwe rakashata uye paki yese marara.
Ini pachangu, ndinofunga kuti kutengeserana uku-kune musoro kune bhizinesi raTesla (vertical integration + gigacasting mindset), asi hakuenderane neOEM yese inoisa pamberi kushanda. Iyo Ford neGM mainjiniya vandakataura navo vachiri kuomerera pamamodule anobviswa.
Nzira dze cylindrical{0}}dzinogadzirisa masero:
Mabhuraketi epurasitiki ane snap{0}kukwana: yakachipa, yakanakira-kusanganisa mavhoriyamu, asi chenjerera kuti pane zvinokambaira - PA66 GF30 inokanganisa pasi pemutoro wakasimba pamusoro ~50 madhigirii .
Pedzisa-plate clamping: mutsara wose unosvinwa pakati pemapuleti ekuunganidza kumativi ose maviri.
Adhesive bonding: chaizvo izvo Tesla anoita.
Bonding ine hwindo rakatetepa kwazvo rekuita.
Kunama kudiki → kusakwana kwesimba rebhondi.
Yakawandisa → kufashukira paseri pemadziro, zvichikuvadza kutamisa kupisa.
Kurapa nguva ndeimwe musoro. Pane imwe purojekiti takashandisa Henkel structural adhesive (Loctite chimwe chinhu, haikwanise kuyeuka giredhi chairo) iyo yakataura 24 h kurapa patembiricha yekamuri, asi mutsetse wedu wakangobvumira 4 h nguva yekugara. Takazochinja kusvika pa60 madhigirii / 2 h kupisa-kubatsirwa kurapwa, izvo zvaireva kuwedzera chiteshi chekudziisa nekugadzirisazve mutsara.
Chinyorwa chinokurumidza pane thermal pad ukobvu(izvi zvinobvunzwa zvakawanda):
- 0.5 mm padkazhinji inobuda pa3–5 W/m·K.
- 1.0 mm pedhiinovhura yepamusoro-maconductivity options (dzimwe dzinosvika 6–8 W/m·K), asi kuzara kwekushisa hakusi nani nguva dzose nekuda kwekuwanda kwekuwedzera.
Iwe unofanirwa kumhanya nhamba dzekesi yega yega. Mapedhi akakora anotora stack yekushivirira-kumusoro (izvo vanogadzira maseru nevagadziri vemapeji vanoda), asi mashandiro ekupedzisira ekupisa anofanirwa kusimbiswa nehardware chaiyo.
Nezve kunyudzwa kunotonhodza zvikamu- Handina maoko akawanda-paruzivo, saka handifungi. Chandinoziva ndechekuti zvinodiwa zvekuisa chisimbiso zvine hutsinye (IP67 kana kunyange IP68), uye kuenderana kwezvinhu nedielectric fluid yakakosha - mamwe mapurasitiki anopfava kana kuzvimba kana anyorova. XING Mobility muTaiwan yakaita mapurojekiti akawanda ekunyudza; mapepa avo machena akanyatsotsanangurwa uye akakodzera kuverenga kana iwe uchifarira.
