High efficiency electrothermal inner bladder

A high-efficiency electric heating inner container belongs to a new variety of drinking machine and boiler inner container, comprising an inner container and an electric heating device, characterized in that the electric heating device includes an electric heating plate, a back-up and a clamp plate; a wrapper sheet is provided outside the electric heating device, the wrapper sheet comprises an upper and a lower wrapper sheet, one of the upper and a lower wrapper sheets is comprised of three blocks of folded plates; the clamp plate is an upper convex arc-shaped board, the periphery of the central hole is a convex ring, holes are provided on the periphery, a linear aperture is provided on one side; a connecting ear is provided on the inner container floor, board drills are provided on the connecting ear; the electric heating plate, the back-up and the clamp plate are sequentially installed on the bottom of the inner container, the clamp board periphery holes are aligned with the inner container floor connecting ear board drills and connected by screws; the electric heating wrapper sheet is an aluminum plate or aluminum alloy plate whose thermal factor is large, thereby it is a good heat conductor. The electric heating board with wrapping board is big in intensity and good in rigidity, and entirely contacted with the inner container floor by the clamp board force, the heat exchanging area is large. Compared with existent electric heating inner container which is tightly pressed by a spring and a spring seat, the utility model has the following properties: first, the water heating-up speed is high, and the heat efficiency is big; second, the electric heating plate is not overheated and the life time is long; third, no short circuit or electricity leakage hidden dangers exist; fourth, the utility is easy to disassemble, maintenance and component replacement are easy, good components can be used continuously, thereby no waste exists.