一、手搖手電筒原理是什么

手電筒中沒有電(dian)池(chi)，在(zai)晃動手電(dian)筒時，手電(dian)筒中的永(yong)磁(ci)體在(zai)線(xian)圈(quan)中運(yun)動，運(yun)動是相對(dui)而言的，相對(dui)于(yu)永(yong)磁(ci)體而言，線(xian)圈(quan)在(zai)做切割磁(ci)感線(xian)運(yun)動，所以會(hui)產生感應(ying)電(dian)流(liu)，電(dian)流(liu)通過燈(deng)泡，燈(deng)泡就會(hui)發光(guang)。

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二、手搖手電筒原理圖

手(shou)(shou)搖(yao)手(shou)(shou)電筒(tong)是(shi)一種(zhong)利(li)(li)用(yong)大功率(lv)的(de)(de)三相交流(liu)發(fa)電機進行(xing)手(shou)(shou)搖(yao)發(fa)電的(de)(de)設備(bei)，利(li)(li)用(yong)此(ci)(ci)原理產生的(de)(de)電能可以通過開(kai)關電源來對(dui)手(shou)(shou)電筒(tong)的(de)(de)電路系統進行(xing)內置充(chong)電。此(ci)(ci)種(zhong)手(shou)(shou)電筒(tong)可以在較(jiao)為(wei)緊急(ji)的(de)(de)情況(kuang)下(xia)使用(yong)不僅具有(you)較(jiao)為(wei)便于攜(xie)帶(dai)的(de)(de)作用(yong)還(huan)具有(you)結構簡單的(de)(de)功能。在一些特殊的(de)(de)情況(kuang)下(xia)可以進行(xing)突然(ran)性的(de)(de)照明使用(yong)，不僅如(ru)此(ci)(ci)手(shou)(shou)搖(yao)電筒(tong)的(de)(de)發(fa)電量還(huan)可以在一定(ding)程度上(shang)用(yong)作手(shou)(shou)電筒(tong)的(de)(de)備(bei)用(yong)電量。

該手(shou)搖動(dong)式自發(fa)電手(shou)電筒原理(li)圖(tu)如圖(tu)所示。其結構(gou)示意圖(tu)如圖(tu)2所示。在(zai)使(shi)用電筒時，搖動(dong)電筒使(shi)它的磁鐵7上(shang)下移動(dong)，通過線圈6即產生(sheng)電能(neng)(neng)，再經圖(tu)2中的D1-D4整流，C1貯能(neng)(neng)向電池CR2032充電通過開關控制使(shi)發(fa)白光二(er)極(ji)管(guan)發(fa)光而實(shi)現(xian)自發(fa)電的功能(neng)(neng)。

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手搖手電筒原(yuan)理(li)圖

三、 手搖手電筒內部結構是怎么樣的

在(zai)圖中(zhong)，1為(wei)(wei)(wei)(wei)圓筒形的(de)(de)塑料骨(gu)架(jia)。2為(wei)(wei)(wei)(wei)發(fa)白光(guang)二極管3為(wei)(wei)(wei)(wei)電(dian)路(lu)板。4為(wei)(wei)(wei)(wei)用銅片(pian)制作的(de)(de)開關(guan)。5為(wei)(wei)(wei)(wei)予留(liu)的(de)(de)CR2032電(dian)池位(wei)置。6為(wei)(wei)(wei)(wei)空芯線(xian)圈，電(dian)感量約33mh，線(xian)徑(jing)約φ.2mm。7為(wei)(wei)(wei)(wei)強力磁(ci)鐵，應使它能在(zai)圓筒內(nei)順利的(de)(de)上下移動。8為(wei)(wei)(wei)(wei)聚焦鏡片(pian)，它與塑料骨(gu)架(jia)之間裝有橡膠(jiao)(jiao)密(mi)封圈，使光(guang)線(xian)更加(jia)集中(zhong)，射(she)程更遠。9為(wei)(wei)(wei)(wei)橡膠(jiao)(jiao)減震圈，避免磁(ci)鐵直接(jie)沖擊(ji)塑料骨(gu)架(jia)。將上面(mian)的(de)(de)材料作為(wei)(wei)(wei)(wei)一體，然后放(fang)入右面(mian)的(de)(de)塑料電(dian)筒外(wai)殼10內(nei)。電(dian)筒的(de)(de)滑動開關(guan)11與電(dian)路(lu)板的(de)(de)銅片(pian)相(xiang)對(dui)應，再(zai)旋上電(dian)筒蓋12。這個(ge)電(dian)筒就能使用了。

我們可(ke)(ke)(ke)以上(shang)下(xia)(xia)搖(yao)動這(zhe)個(ge)電(dian)(dian)(dian)(dian)筒。它就能(neng)(neng)源(yuan)源(yuan)不斷(duan)地發光(guang)(guang)了(le)(le)。由于采(cai)用(yong)(yong)了(le)(le)超亮度的(de)發白光(guang)(guang)二極(ji)管(guan)并且有(you)鏡(jing)片聚(ju)焦，亮度和射(she)程大(da)于只(zhi)使(shi)用(yong)(yong)聚(ju)焦電(dian)(dian)(dian)(dian)殊的(de)五號電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)手(shou)電(dian)(dian)(dian)(dian)筒。但這(zhe)個(ge)電(dian)(dian)(dian)(dian)筒亦有(you)個(ge)顯著的(de)缺點，就是要不停地搖(yao)才能(neng)(neng)不斷(duan)地發光(guang)(guang)。為(wei)了(le)(le)克服這(zhe)個(ge)缺點和節(jie)約成本(ben)，我們沒有(you)采(cai)用(yong)(yong)鋰充(chong)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)增加儲能(neng)(neng)。而是在C1兩端并接兩只(zhi)CR2032鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)。實踐(jian)證明(ming)，由于這(zhe)個(ge)電(dian)(dian)(dian)(dian)筒的(de)耗電(dian)(dian)(dian)(dian)量(liang)約為(wei)30mA，新的(de)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)可(ke)(ke)(ke)以用(yong)(yong)較長的(de)時間，電(dian)(dian)(dian)(dian)量(liang)不足時搖(yao)動電(dian)(dian)(dian)(dian)筒又能(neng)(neng)用(yong)(yong)上(shang)一段時問。反(fan)復多次后電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)完全失效后，取(qu)下(xia)(xia)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)仍然可(ke)(ke)(ke)以繼續工作。如果你的(de)經濟條件許(xu)可(ke)(ke)(ke)，將電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)換成鋰充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)那是最理想的(de)了(le)(le)。