▎ 摘　　要

NOVELTY - The utility model claims a temperature-limiting graphene flexible electrothermal film, relating to the field of geothermal electrothermal film, comprising: a lower packaging layer; an electric heating layer, the electric heating layer is set on the upper end of the lower packaging layer, the electric heating layer is provided with multiple heating wires, the heating wire is composed of a first graphene fibre and a second graphene fibre, the electric heating layer is provided with an electrode layer; an upper packaging layer, the upper packaging layer is set on the upper end of the electric heating layer; electricity inlet lead, the electricity inlet lead is electrically connected with the electrode layer; a temperature limiting component, the temperature limiting component comprises multiple temperature collection pole and multiple temperature control switches, the first and graphene graphene fibre are electrically connected with the temperature control switch. the advantages of the utility model are as follows: the heating wire is composed of the first, graphene, graphene independent heating, and the temperature limiting assembly is used for heating and limiting the temperature, the temperature stability of the heating region is ensured, the change amplitude of the cold and hot temperature of the heating region is reduced, the aging speed of the base layer is reduced, and the service life of the electric heating film is improved.