▎ 摘　　要

NOVELTY - The utility model claims a buoyancy enhanced graphene electric heat insulation life jacket, the life jacket main body is provided with a battery and a temperature controller, the battery is graphene magnesium seawater battery, the life jacket main body is clamped with graphene flexible electrothermal film, the battery is electrically connected with graphene flexible electrothermal film through temperature controller, Graphene flexible electric heating film comprises a left chest electric heating film, a right chest electric heating film, a left leg electric heating film and a right leg electric heating film; the life jacket main body is provided with a nylon waterproof cloth, an aluminium plating film, a heat preservation foam layer and a nylon textile lining from the surface layer to the inside; a heat preservation cavity is set between the heat preservation foam layer and the nylon textile lining; the heat preservation cavity is provided with a longitudinal supporting body and a longitudinal supporting body which are connected with each other in cross; the left and right chest electric heating films and the left and right leg electric heating films respectively fixedly mounted on the longitudinal supporting body and the longitudinal supporting body at the corresponding position. The electrothermal heat preservation life jacket not only has good heat preservation and heat insulation effect, but also can ensure the balance of the body temperature of each part of the human body.