Preparation method of perforated vacuum insulation panel

The invention relates to a preparation method of a perforated vacuum insulation panel, which adopts a porous medium core material pre-trepanning process to manufacture, and effectively keeps the heat insulation performance of the vacuum insulation panel while trepanning; the heat sealing technology that one side is flat and the other side is buckled is adopted for the gas insulation structure film, the number of folded edges is reduced, the fold leakage rate is reduced, the edge heat bridge effect is small, and the service life of the gas insulation structure film is prolonged. The core material pre-trepanning process avoids the damage of conventional trepanning to the vacuum insulated panel, and ensures the air tightness of the vacuum insulated panel. The prefabrication of the perforated core material can also ensure the expected design of the vacuum insulated panel, and the thermal bridge effect caused by conventional trepanning or module splicing is reduced. Compared with the prior art, the perforated vacu