中央空調輔助電(dian)(dian)加(jia)熱器(qi)，意思(si)是(shi)正的(de)(de)(de)溫(wen)度(du)(du)系(xi)數,泛指正溫(wen)度(du)(du)系(xi)數很大的(de)(de)(de)半導體材料或元(yuan)器(qi)件。通(tong)常(chang)我(wo)們(men)提到的(de)(de)(de)PTC是(shi)指正溫(wen)度(du)(du)系(xi)數熱敏(min)電(dian)(dian)阻(zu)(zu),簡稱(cheng)PTC熱敏(min)電(dian)(dian)阻(zu)(zu).PTC熱敏(min)電(dian)(dian)阻(zu)(zu)是(shi)一種(zhong)典型具有溫(wen)度(du)(du)敏(min)感性的(de)(de)(de)半導體電(dian)(dian)阻(zu)(zu),超過***的(de)(de)(de)溫(wen)度(du)(du)(居里溫(wen)度(du)(du))時,它的(de)(de)(de)電(dian)(dian)阻(zu)(zu)值隨著(zhu)溫(wen)度(du)(du)的(de)(de)(de)升高(gao)呈階(jie)躍性的(de)(de)(de)增高(gao)。

　　電(dian)加熱(re)器，利(li)用(yong)(yong)金屬在交(jiao)變磁場中(zhong)產生(sheng)渦流(liu)而使本身發熱(re)吸(xi)收(shou)，是電(dian)能(neng)(neng)(neng)(neng)轉(zhuan)換成光能(neng)(neng)(neng)(neng);比如太陽(yang)能(neng)(neng)(neng)(neng)熱(re)水器，吸(xi)收(shou)太陽(yang)光輻射熱(re)能(neng)(neng)(neng)(neng)和太陽(yang)光光能(neng)(neng)(neng)(neng)(光電(dian)效應(ying))轉(zhuan)換成熱(re)能(neng)(neng)(neng)(neng)兩者兼有;生(sheng)物(wu)能(neng)(neng)(neng)(neng)是以(yi)生(sheng)物(wu)為載(zai)體將太陽(yang)能(neng)(neng)(neng)(neng)以(yi)化學能(neng)(neng)(neng)(neng)形式貯存的一(yi)(yi)種能(neng)(neng)(neng)(neng)量，它直接或間接地來源于(yu)植物(wu)的光合作用(yong)(yong)。除此之外，還有核能(neng)(neng)(neng)(neng)、風能(neng)(neng)(neng)(neng)這些(xie)能(neng)(neng)(neng)(neng)量轉(zhuan)換模式，但是一(yi)(yi)般都需要轉(zhuan)換成電(dian)能(neng)(neng)(neng)(neng)使用(yong)(yong)