xov xwm

Cov kws tshawb fawb tau tsim ibwireless charging chamberuas tuaj yeem ua lub zog txhua lub laptop, ntsiav tshuaj lossis lub xov tooj ntawm tes los ntawm huab cua yam tsis tas yuav tsum muaj plugs lossis cables.
Pab neeg hauv University of Tokyo tau hais tias cov txheej txheem tshiab no suav nrog kev tsim cov hlau nplaum sib nqus ntev dua yam tsis tau tsim hluav taws xob uas tuaj yeem tsim kev puas tsuaj rau leej twg lossis tsiaj hauv chav.
Lub kaw lus, uas tau sim nyob rau hauv ib chav tab sis tseem nyob rau hauv nws cov me nyuam mos, muaj peev xwm xa mus txog 50 watts ntawm lub hwj chim yam tsis muaj tshaj tam sim no cov lus qhia rau tib neeg raug rau magnetic teb, cov kws tshawb fawb tau piav qhia.
Nws tuaj yeem siv los them cov khoom siv nrog lub kauj hauv, zoo ib yam li lub kaw lus siv los ntawm cov khoom siv wireless tam sim no - tab sis tsis muaj lub ncoo them.
Ntxiv nrog rau kev tshem tawm cov khoom siv ntawm cov khoom siv hluav taws xob los ntawm lub rooj, nws tuaj yeem tso cai rau ntau cov khoom siv kom ua tiav tsis tas yuav tsum muaj cov chaw nres nkoj, ntsaws lossis cables, pab pawg tau hais.
Pab neeg no tau hais tias cov txheej txheem tam sim no suav nrog tus ncej hlau nplaum nyob hauv nruab nrab ntawm chav tsev kom tso cai rau cov hlau nplaum "mus txog txhua lub ces kaum", tab sis ua haujlwm yam tsis muaj nws, kev cuam tshuam yog "qhov chaw tuag" uas tsis tuaj yeem them wireless.
Cov kws tshawb fawb tsis tau nthuav tawm ntau npaum li cas cov thev naus laus zis yuav raug nqi vim tias nws tseem nyob rau theem pib ntawm kev txhim kho thiab "xyoo deb" los ntawm kev muaj rau pej xeem.
Txawm li cas los xij, thaum nws muaj peev xwm rov tsim kho lub tsev uas twb muaj lawm lossis koom ua ke rau hauv ib lub tsev tshiab, nrog lossis tsis muaj lub hauv paus coj tus ncej.
Cov thev naus laus zis yuav tso cai rau txhua yam khoom siv hluav taws xob - xws li xov tooj, kiv cua lossis txawm lub teeb - kom them nyiaj yam tsis xav tau cov cables, thiab raws li pom hauv chav tsev no tsim los ntawm University of Tokyo, nws ua pov thawj tias nws ua haujlwm.Unseen yog lub hauv paus. ncej, uas ua rau kom qhov chaw ntawm lub magnetic teb
Lub kaw lus suav nrog kev tshaj tawm hauv nruab nrab ntawm chav tsev kom "sau hauv qhov khoob uas tsis tau them los ntawm phab ntsa capacitors," tab sis cov kws sau ntawv hais tias nws tseem yuav ua haujlwm yam tsis muaj tus ncej, raws li qhia, tab sis yuav ua rau qhov chaw tuag uas tsis them nyiaj. ua haujlwm
Lumped capacitors, tsim los cais cov thermal system, muab tso rau hauv cov kab noj hniav ntawm txhua phab ntsa nyob ib ncig ntawm chav tsev.
Qhov no txo ​​qhov kev pheej hmoo rau tib neeg thiab tsiaj txhu hauv qhov chaw, vim tias hluav taws xob tuaj yeem ua kom sov cov nqaij lom.
Lub central conductive electrode yog ntsia nyob rau hauv lub chav tsev los tsim ib tug ncig magnetic teb.
Txij li thaum lub magnetic teb yog ncig los ntawm lub neej ntawd, nws muaj peev xwm sau ib qho chaw nyob rau hauv lub chav tsev tsis them los ntawm phab ntsa capacitors.
Cov khoom siv xws li xov tooj ntawm tes thiab khoos phis tawj muaj cov coils sab hauv uas tuaj yeem them tau siv cov khoom sib nqus.
Lub kaw lus tuaj yeem muab 50 watts ntawm lub zog yam tsis muaj kev pheej hmoo rau tib neeg lossis tsiaj hauv chav.
Lwm qhov kev siv suav nrog cov qauv me me ntawm cov cuab yeej hluav taws xob hauv lub thawv, lossis cov qauv loj dua uas tuaj yeem tso cai rau tag nrho cov nroj tsuag ua haujlwm yam tsis muaj cables.
"Qhov no tiag tiag txhim kho lub zog ntawm lub ntiaj teb kev suav thoob plaws ntiaj teb - koj tuaj yeem tso koj lub computer nyob txhua qhov chaw yam tsis muaj kev txhawj xeeb txog kev them nyiaj lossis ntsaws," said Alanson Sample los ntawm University of Michigan.
Kuj tseem muaj cov ntaub ntawv kho mob, raws li Cov Qauv, uas tau hais tias kev cog ntoo hauv lub plawv tam sim no xav tau cov hlau los ntawm lub twj tso kua mis kom dhau los ntawm lub cev thiab mus rau hauv lub qhov (socket).
"Qhov no tuaj yeem tshem tawm tus mob no," cov kws sau ntawv tau hais, ntxiv tias nws yuav txo qhov kev pheej hmoo ntawm kev kis kab mob los ntawm kev tshem tawm cov xov hlau tag nrho, "txo txoj kev pheej hmoo kis mob thiab txhim kho tus neeg mob lub neej zoo."
Kev them nyiaj wireless tau ua pov thawj tsis txaus ntseeg, nrog rau kev tshawb fawb tsis ntev los no pom tias hom hlau nplaum thiab coils siv hauv qee cov khoom Apple tuaj yeem kaw cov pacemakers thiab cov khoom siv zoo sib xws.
"Peb cov kev tshawb fawb tsom rau cov kab noj hniav zoo li qub tsis siv cov hlau nplaum ruaj khov thiab yog li tsis ua rau muaj kev txhawj xeeb txog kev noj qab haus huv thiab kev nyab xeeb," nws hais.
"Xwb, peb siv tsawg zaus oscillating magnetic teb los xa hluav taws xob wirelessly, thiab cov duab thiab cov qauv ntawm cov kab noj hniav resonators tso cai rau peb tswj thiab tswj cov teb no.
"Peb tau txais kev txhawb siab tias peb qhov kev ntsuam xyuas kev nyab xeeb thawj zaug tau pom tias lub zog muaj txiaj ntsig tuaj yeem hloov mus tau nyab xeeb thiab ua tau zoo.Peb yuav txuas ntxiv tshawb nrhiav thiab tsim cov thev naus laus zis no kom ua tau raws lossis dhau tag nrho cov txheej txheem kev nyab xeeb.
Txhawm rau ua kom pom cov kab ke tshiab, lawv tau teeb tsa lub cim wireless charging infrastructure hauv lub hom phiaj tsim 10-foot-by-10-foot aluminium "test chamber."
Tom qab ntawd lawv siv nws los ua lub teeb hluav taws xob, kiv cua thiab xov tooj ntawm tes, kos hluav taws xob los ntawm txhua qhov chaw hauv chav, tsis hais cov rooj tog zaum lossis tib neeg.
Cov kws tshawb fawb hais tias lub kaw lus yog qhov kev txhim kho tseem ceeb tshaj qhov kev sim ua dhau los ntawm kev them nyiaj wireless, uas siv cov hluav taws xob microwave hluav taws xob tsis zoo lossis yuav tsum tau muab lub cuab yeej tso rau ntawm lub ncoo them nyiaj tshwj xeeb.
Hloov chaw, nws siv cov khoom siv hluav taws xob thiab cov hluav taws xob ntawm cov phab ntsa ntawm chav tsev los tsim cov hlau nplaum uas cov cuab yeej siv tau rau hauv thaum lawv xav tau lub zog.
Cov khoom siv siv cov hlau nplaum sib nqus los ntawm cov coils, uas tuaj yeem ua ke rau hauv cov khoom siv hluav taws xob xws li xov tooj ntawm tes.
Cov kws tshawb fawb hais tias lub kaw lus tuaj yeem yooj yim ntsuas rau cov qauv loj dua, xws li cov chaw tsim khoom lossis cov tsev khaws khoom, thaum tseem ua tau raws li cov lus qhia txog kev nyab xeeb hluav taws xob uas twb muaj lawm los ntawm US Tsoom Fwv Teb Chaws Kev Sib Txuas Lus (FCC).
Takuya Sasatani, tus kws tshawb fawb ntawm University of Tokyo thiab tus kws sau ntawv tshawb fawb tau hais tias "Ib yam zoo li no yooj yim tshaj plaws los siv hauv cov tsev tshiab, tab sis kuv xav tias kev rov ua dua tshiab kuj tseem tuaj yeem ua tau,"
"Piv txwv li, qee lub tsev lag luam twb muaj cov hlau txhawb nqa rods thiab nws yuav tsum muaj peev xwm txau cov khoom siv hluav taws xob rau ntawm phab ntsa, uas tuaj yeem zoo ib yam li kev tsim cov ceilings li cas."
Cov kws sau ntawv tshawb fawb piav qhia tias lub kaw lus tuaj yeem xa mus txog 50 watts ntawm lub zog yam tsis muaj tshaj FCC cov lus qhia rau tib neeg raug rau cov hlau nplaum.
Cov kws sau ntawv tshawb fawb piav qhia tias lub kaw lus tuaj yeem xa mus txog 50 watts ntawm lub zog yam tsis muaj tshaj FCC cov lus qhia rau tib neeg raug rau cov hlau nplaum.
Qhov chaw sib nqus piav qhia seb lub zog sib nqus tau faib li cas hauv thaj chaw ib puag ncig ib puag ncig cov khoom sib nqus.
Nws suav nrog cov nyhuv ntawm cov hlau nplaum ntawm cov nqi txawb, cov khoom siv tam sim no thiab cov khoom sib nqus.
Lub ntiaj teb tsim nws tus kheej magnetic teb, uas pab tiv thaiv nto los ntawm teeb meem hnub ci hluav taws xob.
Tus yuam sij rau kev ua kom lub cev ua haujlwm, Sample hais tias, yog los tsim cov qauv resonant uas tuaj yeem xa cov chaw sib nqus hauv chav tsev thaum kaw cov hluav taws xob tsis zoo uas tuaj yeem ua kom sov cov ntaub so ntswg.
Pab neeg txoj kev daws teeb meem siv cov cuab yeej hu ua lub lumped capacitor, uas haum rau cov qauv lumped capacitance - qhov twg lub thermal system yog txo kom cov lumps.
Qhov kub sib txawv hauv txhua qhov thaiv yog qhov tsis txaus ntseeg thiab twb tau siv dav hauv kev tsim kev tswj hwm huab cua.
Capacitors muab tso rau hauv phab ntsa kab noj hniav tsim ib qho chaw sib nqus uas resonates nyob rau hauv chav tsev thaum dai cov hluav taws xob hauv lub capacitor nws tus kheej.
Qhov no kov yeej cov kev txwv ntawm lub tshuab hluav taws xob wireless yav dhau los, uas tau txwv rau kev xa cov hluav taws xob ntau dhau ntawm qhov deb me me ntawm ob peb millimeters, lossis tsawg heev nyob rau qhov ntev, uas tuaj yeem tsim kev puas tsuaj rau tib neeg.
Pab neeg no kuj yuav tsum tau tsim ib txoj hauv kev los xyuas kom meej tias lawv cov magnetic teb mus txog txhua lub ces kaum ntawm chav tsev, tshem tawm ib qho "qhov chaw tuag" uas yuav tsis raug nqi.
Sib nqus teb zoo li propagate nyob rau hauv cov qauv ncig, tsim cov chaw tuag nyob rau hauv square chav thiab nyuaj rau precisely ua raws li cov coils nyob rau hauv lub ntaus ntawv.
"Kev kos lub zog hauv huab cua nrog lub kauj yog ntau yam zoo li ntes npauj npaim nrog lub vas," Sample hais, ntxiv tias qhov ua kom yuam kev yog "kom tau txais ntau tus npauj npaim li sai tau kom tig mus ncig ntawm chav tsev kom ntau li ntau tau."
Los ntawm muaj ntau tus npauj npaim, lossis qhov no, ntau qhov sib nqus sib nqus sib cuam tshuam, txawm tias lub vev xaib nyob qhov twg, lossis txoj kev twg nws tau taw qhia - koj yuav ntaus lub hom phiaj.
Ib lub voj voog lub hauv paus ncej ntawm chav tsev, thaum lwm qhov swirls nyob rau hauv cov ces kaum, weaving ntawm cov phab ntsa uas nyob ib sab.
Nws tuaj yeem siv los them txhua yam khoom siv nrog lub kauj hauv, zoo ib yam li lub kaw lus siv los ntawm cov khoom siv wireless tam sim no - tab sis tsis muaj lub ncoo them
Cov kws tshawb fawb tsis tau hais tias cov thev naus laus zis yuav raug nqi npaum li cas, vim tias nws tseem nyob rau theem pib ntawm txoj kev loj hlob, tab sis nws "yuav siv xyoo" thiab tuaj yeem hloov kho rau cov tsev uas twb muaj lawm lossis koom ua ke rau hauv cov tsev tshiab tag nrho thaum muaj nruab nrab.
Raws li Sample, txoj hauv kev no tshem tawm qhov chaw tuag, tso cai rau cov khoom siv los rub lub zog los ntawm txhua qhov chaw hauv qhov chaw.