Household vacuum sealer supplied AC power and heated

A household vacuum sealer comprising:

• a base, a lid, and a hot-melt sealing element;
• the lid being rotatably fixed on the base, and the base including a receiving chamber defined in the base to accommodate a control circuit and a vacuum pump, the base also including a vacuuming chamber and an accommodation chamber which are parallely formed on a top of a side of the base, the accommodation chamber being in front of the vacuuming chamber, the hot-melt sealing element being engaged in the accommodation chamber, the vacuuming pump being in communicated with the vacuuming chamber via an air tube, and the control circuit being electrically connected with the vacuuming pump and the hot-melt sealing element;
• wherein the hot-melt sealing element includes a holder, a mica slice, a laminated heating layer, an insulated composite layer, and a protective cap;
• wherein the insulated composite layer includes multiple insulated tape layers which are staked and adhered to form the insulated composite layer;
• wherein the laminated heating layer includes a high-temperature resistance tapes made of polyimide and a metal resistance tape adhered on the high-temperature resistance tapes of the laminated heating layer, wherein the laminated heating layer further includes the two electrical connection films formed on two sides thereof, and two alternating current (AC) electrodes arranged on the two electrical connection films respectively, wherein two sides of the metal resistance tape extend to two electrical connection films respectively and are electrically connected with the two alternating current (AC) electrodes;
• wherein the mica slice is parallely fixed on a top of the holder, the laminated heating layer is mounted on a top of the mica slice, the laminated heating layer includes two electrical connection films extending to the holder, and the insulated composite layer is adhered in a top of the laminated heating layer;
• and
• wherein the protective cap is covered on the insulated composite layer, the protective cap has a hollowly elongated zone horizontally extending on a middle portion thereof, and an insulation tape is exposed outside the hollowly elongated zone to form a bag sealing area;
• wherein a bottom of the protective cap is engaged with the holder, the mica slice, the laminated heating layer, the insulated composite layer and the protective cap to form an independent element;
• wherein the insulated composite layer has multiple Polytetrafluoroethylene (PTFE) tapes and multiple high-temperature resistance tapes made of polyimide, wherein the insulated composite layer has a first Polytetrafluoroethylene (PTFE) tape fixed on a top of the insulated composite layer, three high-temperature resistance tapes defined on a middle section of the insulated composite layer, and a second Polytetrafluoroethylene (PTFE) tape located on a bottom of the insulated composite layer;
• two sides of the insulated composite layer extend to two sides of the holder, and a front end and a rear end of the insulated composite layer extend downward to the holder, wherein the insulated composite layer covers the laminated heating layer.