Heat insulation polyurethane sponge with efficient noise reduction and sound insulation functions and heat insulation assembly thereof

The invention discloses efficient noise reduction and sound insulation heat insulation polyurethane sponge and a heat insulation assembly thereof, and belongs to the technical field of heat insulation, the efficient noise reduction and sound insulation heat insulation polyurethane sponge comprises a polyurethane sponge plate, an inner cavity is formed in the polyurethane sponge plate, a filling core is arranged in the inner cavity, and the filling core sequentially comprises a honeycomb plate, a first noise reduction plate, a second noise reduction plate, a glass wool felt and a fiber plate; the two ends of the polyurethane sponge plate are integrally connected with end sockets, and arc-shaped notches are formed in the end portions of the two sides of each end socket. The heat insulation plate formed by foaming polyurethane has excellent heat insulation performance, the polyurethane material is stable in porosity structure, basically adopts a closed-cell structure, not only has excellent heat insulation perfo