Integral direct-heating electric heater

The utility model relates to an integral direct-heating electric heater. The utility model comprises a shell body, an insulated carrier which is fixedly arranged in the lower bottom of the shell body, and a heating body which is arranged on the insulated carrier, wherein, a definite gap is kept between the heating body and an upper cap. Lead-out ends are led out of both ends of the heating body, and are connected with a power supply outside the shell body. Heat conducting sealed binding material is filled between the heating body and the upper cap. The conducting sealed binding material causes the heating body to be tightly combined with the insulated carrier and kept with a fixed distance with the upper cap, and simultaneously causes the upper cap and the lower bottom to be hermetically connected. The utility model has the advantages of good performances of binding and fixing of each component and sealing of the shell body, fearlessness on water wash and moisture, safe use and long service life, and is suitable for any situation.