A vacuum insulation panel, cold storage box and production method thereof

Abstract

The invention provides a vacuum thermal insulation plate, a cold keeping box and a production method thereof. The vacuum thermal insulation plate comprises a core plate and a film bag for sealing and coating the core plate and vacuumized, and is characterized in that folding plates are arranged on the same planes of the four sides of the core plate in the film bag; and when all the folding plates are overturned to the same side corresponding to the core plate by 90 degrees, the folding plates and the core plate form a box body with one opened side. The box body can be folded by using one vacuum thermal insulation plate, so that the box body molding steps are simplified; and one vacuum thermal insulation plate is adopted, so that both time and labors are saved in box body molding. As the final size of the box body can be accurately controlled only by accurately controlling the sizes of the core plate and the folding plates, the product size consistency is guaranteed in large-batch production. A foaming material and the vacuum thermal insulation plate are molded as a whole, so that the shape size is further precise, the wear resistance and the impact resistance of the vacuum thermal insulation plate can be greatly improved, and the vacuum thermal insulation plate is not easy to damage.

Description

technical field [0001] The invention relates to a heat insulation board, a production method of the heat insulation board and a cold storage box. Background technique [0002] The heat insulation layer in the surrounding side walls of the existing cold storage box is four heat insulation panels arranged in a rectangle; insulation board. The heat insulation board includes: a vacuum heat insulation board and a foam material completely covering the vacuum heat insulation board. [0003] The disadvantages of the above-mentioned prior art are: (1) The forming steps of the cold storage box are complicated, time-consuming and labor-intensive, and it is difficult to realize production through automatic equipment; Body, when manually mass-produced, the size consistency of the box is difficult to control; (3) When four insulation panels or vacuum insulation panels are spliced ​​together, there will be a large gap at the splicing point, resulting in the formation of thermal bridges, ...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the above-mentioned prior art are: (1) The forming steps of the cold storage box are complicated, time-consuming and labor-intensive, and it is difficult to realize production through automatic equipment; Body, when manually mass-produced, it is difficult to control the size consistency of the box; (3) When four insulation panels or vacuum insulation panels are spliced, there will be a large gap at the splicing point, resulting in the formation of thermal bridges, which will affect the insulation performance of the box

[0004] In another existing cold storage box, the flat-plate vacuum insulation panels are directly folded to form the surrounding walls of the box, which will cause the membrane material of the vacuum-coated core material to be damaged due to excessive pulling, thereby affecting its service life

In addition, when the flat vacuum insulation panels are folded, it is difficult to control the shape and size, resulting in low consistency in the size of the resulting box

[0005] How to reduce the steps of box forming, reduce the problem of low box size consistency due to inconsistent panel assembly, and fully utilize the advantages of vacuum insulation panels to greatly improve the cold preservation effect are technical problems to be solved in this field

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