▎ 摘　　要

NOVELTY - Graphene water-cooling radiating packaging structure comprises first chip (1), second chip (2) and filling resin (3). The first chip and second chip are filled with filling resin. The top and bottom of filling resin are equipped with ceramic copper plates (4). The top surface and bottom surface of ceramic copper plate are coated with graphene coating (5). The two ends of filler resin and substrate are set with packaging frame (9), and packaging frame is located between radiators (7). The ceramic copper plate, filling resin, periphery of substrate and radiator are set with hydro-cooling (8). The bottom of hydro-cooling is set with circulating box (14), and bottom of inner cavity of hydro-cooling is set with water outlet (82). The radiating mechanism (12) comprises fan (121), and fan is set at the bottom of hydro-cooling (8) through machine frame, and one end of fan is set with first bevel gear (122). The first bevel gear and second bevel gear (133) are meshed and connected. USE - Graphene water-cooling radiating packaging structure for an insulated gate bipolar transistor (IGBT) module of a power semiconductor device. ADVANTAGE - The structure improves radiating effect by setting hydro-cooling box and circulating box for water cooling and radiating, and spring pipe is set between hydro-cooling box and circulating box. The elastic support has the effect of damping, spring tube makes water in hydro-cooling box cavity pass through the bent spring tube to dissipate heat, increase time for the water in hydro-cooling box cavity to enter circulation box cavity, and promote radiating time. The structure is simple, the driving source is saved, the energy consumption is reduced. The graphene has very good heat conduction performance, and the pure defect-free single-layer graphene has high heat conductivity 5300 watts per meter-kelvin (W/mK), which is the carbon material with the highest heat-conducting coefficient. The setting of graphene coating and graphene wire net has very good thermal conductivity for entire module, and promotes radiating effect. The radiator adopts graphene aluminum radiator. The graphene aluminum radiator has lighter weight, strong adaptability, and strong acid and alkali resistance. The graphene aluminum radiator has better properties than metal Higher super-high surface heat radiation capacity and stronger radiating effect. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of the whole structure of a graphene water-cooling radiating packaging structure of IGBT module. First chip (1) Second chip (2) Filling resin (3) Ceramic copper plate (4) Graphene coating (5) Substrate (6) Hydrocooling (8) Packaging frame (9) Spring tube (10) Spring bracket (11) Radiating mechanism (12) Water wheel (13) Circulating box (14) Circulating pipe (15) Mounting plate (16) Corrugation (81) Water outlet (82) Graphene screen (91) Radiating fin (92) Fan (121) First bevel gear (122) Rotating shaft (132) Second bevel gear (133)