▎ 摘　　要

NOVELTY - The utility model claims a new graphene self-limiting temperature heating body, wherein the base material, graphene film, electrode and protective film, wherein the graphene film is a PTC graphene heating coating; the PTC graphene heating coating is coated on the front and back sides of the substrate; two sides of the PTC graphene heating coating of each surface are provided with electrodes; the protective film is attached to the outer side of the electrode and the PTC graphene heating coating. The utility model is provided with PTC graphene heating coating on the front and back sides of the base material, an electrode and a protective film, the two heating bodies are integrated together; according to the use requirement, the two PTC graphene heating coating are connected in series or in parallel; it can increase the heat productivity of unit area, without damaging the product structure.