Abstract: An inner tank structure, having a plastic body in the form of a hollow barrel. The hollow barrel has an open top allowing water to supply therefrom. The inner tank is divided into an upper portion and a lower portion by a partitioning board laterally extending therein. The lower portion functions as a cold water tank. The cold water tank includes a cryogenic device substantially covering the whole exterior side surface of the cold water tank, and a metal member substantially covering the whole exterior side surface of the cryogenic device.

Abstract: An electric baking pan, having a first base and a second base. The first base has a first shell, a first handle connected to one side of the first shell, a first baking plate, at least one snapping device installed in the first handle to engage with the first baking plate, a pair of pivot plugs disposed at two lateral ends of the first shell, and a first heat isolating plate disposed in the first shell, the first heat isolating plate includes a first heating element to heat up the first baking plate. The second base has a second shell, a second handle connected to one side of the second shell, a second baking plate, at least one snapping device installed in the first handle to engage with the first baking plate, a pair of pivot sockets disposed at two lateral ends of the second shell allowing the pivot plugs slidably installed therein, and a second heat isolating plate disposed in the second shell, the second heat isolating plate includes a second heating element to heat up the second baking plate.