一、手搖手電筒原理是什么

手電筒中沒(mei)有電(dian)池(chi)，在晃動(dong)手電(dian)筒(tong)時，手電(dian)筒(tong)中的永磁(ci)體在線圈(quan)中運動(dong)，運動(dong)是相(xiang)對而(er)言的，相(xiang)對于永磁(ci)體而(er)言，線圈(quan)在做(zuo)切割磁(ci)感線運動(dong)，所以會產生感應電(dian)流(liu)，電(dian)流(liu)通過燈(deng)泡，燈(deng)泡就會發光(guang)。

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二、手搖手電筒原理圖

手(shou)搖手(shou)電筒(tong)是一(yi)種利用大功(gong)率(lv)的(de)(de)三相(xiang)交(jiao)流發(fa)電機進(jin)行(xing)手(shou)搖發(fa)電的(de)(de)設備，利用此(ci)原理(li)產生的(de)(de)電能(neng)可(ke)以通過開關電源(yuan)來對手(shou)電筒(tong)的(de)(de)電路系統進(jin)行(xing)內(nei)置充電。此(ci)種手(shou)電筒(tong)可(ke)以在(zai)較為緊(jin)急的(de)(de)情(qing)況下使用不僅具有較為便于攜帶的(de)(de)作(zuo)用還具有結構簡單的(de)(de)功(gong)能(neng)。在(zai)一(yi)些特殊(shu)的(de)(de)情(qing)況下可(ke)以進(jin)行(xing)突然性的(de)(de)照明使用，不僅如此(ci)手(shou)搖電筒(tong)的(de)(de)發(fa)電量(liang)還可(ke)以在(zai)一(yi)定(ding)程(cheng)度上用作(zuo)手(shou)電筒(tong)的(de)(de)備用電量(liang)。

該手搖動(dong)(dong)式自發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)手電(dian)(dian)(dian)(dian)(dian)筒(tong)(tong)原(yuan)理圖如(ru)圖所示。其結構示意圖如(ru)圖2所示。在使用電(dian)(dian)(dian)(dian)(dian)筒(tong)(tong)時，搖動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)筒(tong)(tong)使它的磁(ci)鐵(tie)7上下(xia)移動(dong)(dong)，通過(guo)線(xian)圈6即產生(sheng)電(dian)(dian)(dian)(dian)(dian)能(neng)，再經圖2中(zhong)的D1-D4整流，C1貯能(neng)向(xiang)電(dian)(dian)(dian)(dian)(dian)池CR2032充電(dian)(dian)(dian)(dian)(dian)通過(guo)開關控制(zhi)使發(fa)(fa)白光二極管發(fa)(fa)光而實現(xian)自發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)的功能(neng)。

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手搖(yao)手電筒原(yuan)理(li)圖

三、 手搖手電筒內部結構是怎么樣的

在圖(tu)中(zhong)，1為(wei)圓筒(tong)形(xing)的塑(su)料(liao)(liao)骨架。2為(wei)發(fa)白光(guang)二極管3為(wei)電路板(ban)。4為(wei)用(yong)(yong)銅(tong)片(pian)制作的開關。5為(wei)予留的CR2032電池(chi)位置(zhi)。6為(wei)空芯線圈(quan)(quan)，電感量約(yue)(yue)33mh，線徑約(yue)(yue)φ.2mm。7為(wei)強(qiang)力磁鐵，應(ying)使它(ta)能(neng)在圓筒(tong)內(nei)順(shun)利的上下移動。8為(wei)聚焦(jiao)鏡片(pian)，它(ta)與塑(su)料(liao)(liao)骨架之間裝有橡膠密封圈(quan)(quan)，使光(guang)線更(geng)加集中(zhong)，射(she)程更(geng)遠。9為(wei)橡膠減(jian)震圈(quan)(quan)，避免磁鐵直接沖擊塑(su)料(liao)(liao)骨架。將上面(mian)的材料(liao)(liao)作為(wei)一體，然后放入右面(mian)的塑(su)料(liao)(liao)電筒(tong)外殼(ke)10內(nei)。電筒(tong)的滑(hua)動開關11與電路板(ban)的銅(tong)片(pian)相對應(ying)，再(zai)旋上電筒(tong)蓋12。這(zhe)個電筒(tong)就(jiu)能(neng)使用(yong)(yong)了(le)。

我們可(ke)(ke)以上(shang)下搖(yao)(yao)動(dong)這個(ge)電(dian)筒(tong)。它就能(neng)源源不斷(duan)地(di)發光(guang)了。由于采用了超亮度的發白光(guang)二極管并且(qie)有鏡片聚焦，亮度和(he)射程(cheng)大于只使用聚焦電(dian)殊的五號電(dian)池(chi)(chi)手電(dian)筒(tong)。但這個(ge)電(dian)筒(tong)亦有個(ge)顯著的缺點，就是要不停地(di)搖(yao)(yao)才能(neng)不斷(duan)地(di)發光(guang)。為(wei)了克服這個(ge)缺點和(he)節約成本，我們沒有采用鋰充電(dian)池(chi)(chi)增加儲(chu)能(neng)。而是在C1兩端并接兩只CR2032鋰電(dian)池(chi)(chi)。實(shi)踐(jian)證明，由于這個(ge)電(dian)筒(tong)的耗電(dian)量約為(wei)30mA，新的電(dian)池(chi)(chi)可(ke)(ke)以用較長的時(shi)間，電(dian)量不足(zu)時(shi)搖(yao)(yao)動(dong)電(dian)筒(tong)又(you)能(neng)用上(shang)一段時(shi)問(wen)。反復多次后(hou)電(dian)池(chi)(chi)完全失效后(hou)，取下電(dian)池(chi)(chi)仍然可(ke)(ke)以繼續工作。如果你的經濟條件許可(ke)(ke)，將電(dian)池(chi)(chi)換成鋰充電(dian)電(dian)池(chi)(chi)那是最理想的了。