真空絕熱板具有(you)抽(chou)(chou)真空(kong)(kong)(kong)時間短、保(bao)(bao)(bao)溫性(xing)能好(hao)、節約保(bao)(bao)(bao)溫材(cai)料(liao)等優點，通過(guo)保(bao)(bao)(bao)溫板(ban)(ban)(ban)設置在(zai)板(ban)(ban)(ban)材(cai)保(bao)(bao)(bao)溫材(cai)料(liao)的(de)中間，在(zai)覆蓋有(you)反光膜的(de)空(kong)(kong)(kong)壁(bi)上，在(zai)吸氣劑的(de)孔中，形成中空(kong)(kong)(kong)結構的(de)保(bao)(bao)(bao)溫板(ban)(ban)(ban)，反射后(hou)再(zai)用(yong)高阻(zu)隔性(xing)薄膜包裹，將空(kong)(kong)(kong)氣抽(chou)(chou)成真空(kong)(kong)(kong)狀態，形成真空(kong)(kong)(kong)絕熱板(ban)(ban)(ban)。

　　真空(kong)(kong)(kong)(kong)絕熱板具有空(kong)(kong)(kong)(kong)隙結構的(de)(de)絕緣板內部為中空(kong)(kong)(kong)(kong)結構，空(kong)(kong)(kong)(kong)隙中存(cun)在大量(liang)空(kong)(kong)(kong)(kong)氣(qi)，有利于(yu)內部真空(kong)(kong)(kong)(kong)的(de)(de)產生(sheng)，空(kong)(kong)(kong)(kong)隙中的(de)(de)吸(xi)氣(qi)劑以開放的(de)(de)方式放置，更容易(yi)吸(xi)收剩余的(de)(de)空(kong)(kong)(kong)(kong)氣(qi)，從而保證絕熱板的(de)(de)真空(kong)(kong)(kong)(kong)度。

　　真空(kong)絕(jue)(jue)熱板還節省了絕(jue)(jue)緣材(cai)料，由于(yu)空(kong)心結構的真空(kong)絕(jue)(jue)熱板的空(kong)腔(qiang)壁上設有(you)反(fan)射膜，從內部堵住了散熱的途徑，使(shi)其絕(jue)(jue)熱性能(neng)更好。

　　真(zhen)空(kong)(kong)絕(jue)熱(re)板(ban)由保(bao)溫(wen)材(cai)料(liao)、空(kong)(kong)隙、反光(guang)膜(mo)、高阻隔膜(mo)和吸氣劑組(zu)成，其(qi)特征(zheng)是在(zai)保(bao)溫(wen)材(cai)料(liao)的中間有一(yi)個穿過保(bao)溫(wen)板(ban)的孔，空(kong)(kong)隙的內壁周圍(wei)可以(yi)覆蓋(gai)反射膜(mo)。