▎ 摘　　要

NOVELTY - The utility model claims a multifunctional back cushion, relating to cushion technology field. comprising a back cushion main body, the back cushion main body comprises a first cushion layer, a second cushion layer and a third cushion layer, the upper surface of the first cushion layer is provided with a through hole, the inner part of the second cushion layer is provided with an elastic plate, the inner part of the second cushion layer is located below the elastic plate is provided with an elastic block, the lower surface of the elastic block is fixedly provided with a graphene heating bump, the upper surface of the second cushion layer is provided with a groove corresponding to the graphene heating convex block groove, . The multifunctional back cushion, through setting elastic plate, elastic block, graphene heating bump, groove and electric connecting sheet, when the back cushion main body, the back presses the elastic plate, so that the elastic block presses the graphene heating bump to the inner part of the groove, and is connected with the electric connecting sheet, so as to heat, for the graphene heating bump and groove which are not pressed cannot heat, so as to reach the effect of saving energy.