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汽車也能使用無線充電器充電?

   以電(dian)動(dong)汽車(che)(che)為代表(biao)的新(xin)能源汽車(che)(che)是汽車(che)(che)工(gong)業(ye)的前進(jin)方(fang)向之一。不(bu)過(guo)目(mu)前的電(dian)動(dong)汽車(che)(che)還不(bu)夠成(cheng)熟,首先體現在(zai)其續航能力不(bu)足;其次,給電(dian)動(dong)汽車(che)(che)充電(dian)實(shi)在(zai)不(bu)太方(fang)便。

不(bu)過近年來興(xing)起的(de)無(wu)(wu)(wu)(wu)線充(chong)電(dian)(dian)(dian)(dian)技術很可(ke)(ke)能(neng)可(ke)(ke)以幫(bang)助人們解(jie)(jie)決這兩個問題。雖然(ran)無(wu)(wu)(wu)(wu)線充(chong)電(dian)(dian)(dian)(dian)無(wu)(wu)(wu)(wu)法提升電(dian)(dian)(dian)(dian)動汽車(che)的(de)續航(hang)能(neng)力上限,但(dan)大(da)量安裝的(de)無(wu)(wu)(wu)(wu)線充(chong)電(dian)(dian)(dian)(dian)站從(cong)某種(zhong)程度(du)上也能(neng)夠(gou)解(jie)(jie)決汽車(che)續航(hang)不(bu)足(zu)的(de)問題;即便(bian)無(wu)(wu)(wu)(wu)線充(chong)電(dian)(dian)(dian)(dian)無(wu)(wu)(wu)(wu)法和在加油站加油相(xiang)提并論,但(dan)與有(you)線充(chong)電(dian)(dian)(dian)(dian)相(xiang)比,其(qi)便(bian)利性不(bu)言而喻(yu)。

但是(shi)要(yao)怎樣實現對電(dian)(dian)(dian)動車進行無線(xian)充(chong)電(dian)(dian)(dian)呢(ni)?一說起無線(xian)充(chong)電(dian)(dian)(dian),大家(jia)很(hen)容易聯想到電(dian)(dian)(dian)磁感應。但如果用(yong)(yong)電(dian)(dian)(dian)磁感應給汽車電(dian)(dian)(dian)瓶進行無線(xian)充(chong)電(dian)(dian)(dian),就必須得使用(yong)(yong)高頻(pin)電(dian)(dian)(dian)磁場,但如果使用(yong)(yong)高頻(pin)電(dian)(dian)(dian)磁場,汽車倒是(shi)能(neng)充(chong)上(shang)電(dian)(dian)(dian),可(ke)車里的人(ren)可(ke)能(neng)就會(hui)變成神奇四俠或者比卡丘(qiu)了。

近日,來自(zi)英屬哥(ge)倫比亞大(da)學(UBC)的(de)羅恩?懷(huai)特海德(de)(Lorne Whitehead)教(jiao)授就研發出一種健(jian)康(kang)有(you)(you)效的(de)無(wu)線充(chong)電(dian)方式。他沒有(you)(you)使用電(dian)磁場(chang),而是使用自(zi)己(ji)開發出的(de)“遠程(cheng)磁性齒輪”代替了電(dian)磁線圈。                                遠程(cheng)磁性齒輪充(chong)電(dian)裝置的(de)原型(xing)機

所謂“遠程磁(ci)性齒輪(lun)”其(qi)實就(jiu)是(shi)一(yi)對(dui)不斷旋轉的磁(ci)鐵,一(yi)只被安(an)裝(zhuang)在(zai)充電(dian)器內,一(yi)只被安(an)裝(zhuang)在(zai)車(che)內。充電(dian)器內有馬達會(hui)驅動磁(ci)鐵轉動,車(che)內對(dui)應(ying)的磁(ci)鐵在(zai)磁(ci)場的帶動下也會(hui)開始轉動,由轉動產生(sheng)的機械能(neng)轉化為電(dian)能(neng),實現(xian)電(dian)池的充電(dian)。

懷特海德帶領團隊開發出的無線充電技術充電功率高達3.3千瓦,波頻卻只有普通無線充電器的(de)(de)百分之一。較低的(de)(de)頻率杜絕了受到其(qi)它設備干擾的(de)(de)可能(neng)性,也(ye)為車(che)載人員(yuan)的(de)(de)生命安全提供(gong)了保障。得益于其(qi)簡約的(de)(de)設計,汽車(che)在(zai)進行(xing)無線(xian)充電時也(ye)不需要完全固定在(zai)某一位置上。(不過我們估計,位置越(yue)精準,充電效果越(yue)好)

目(mu)前(qian),英(ying)屬哥(ge)倫比(bi)亞(ya)大(da)學已(yi)經為四(si)輛電動(dong)校(xiao)車(che)安裝了無(wu)線充電系統。實踐證明,該(gai)無(wu)線充電系統的充電效率能達到有線座充的90%以上,該(gai)校(xiao)的電動(dong)校(xiao)車(che)充滿電僅需(xu)4個小時。                                                            UBC研發的已(yi)經投入(ru)使用的無(wu)線充電站

“電(dian)(dian)力驅動(dong)汽車(che)(che)的一大問題在(zai)于(yu)使(shi)用者需要使(shi)用充(chong)電(dian)(dian)線對汽車(che)(che)進行充(chong)電(dian)(dian),這在(zai)狹小的空(kong)間(jian)下很難操作,而在(zai)惡劣的天氣(qi)條(tiao)件下對于(yu)充(chong)電(dian)(dian)者而言更會(hui)是(shi)個大麻煩。”英屬(shu)哥倫比亞大學(xue)建(jian)筑業務(UBC Building Operations)總經理大衛?伍德生(sheng)(David Woodson)表(biao)示,“從我們開始測(ce)試這套(tao)系統至(zhi)今,來自(zi)(zi)于(yu)司機們的反響非常積極。他們只要把車(che)(che)停在(zai)固定的范圍(wei)內,充(chong)電(dian)(dian)就自(zi)(zi)動(dong)開始了。”

懷特海(hai)德教授的團隊開(kai)發(fa)的這(zhe)(zhe)套遠程充電系統目前僅被(bei)應用(yong)在電動(dong)汽車充電上,不過很明顯,這(zhe)(zhe)項(xiang)技(ji)(ji)術有著更(geng)為廣(guang)闊的應用(yong)空間:手機、電腦(nao)甚至(zhi)是(shi)醫用(yong)起(qi)搏(bo)器都可能(neng)受益于這(zhe)(zhe)項(xiang)新技(ji)(ji)術。

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