Three-dimensional ventilation panel

Abstract

This invention provides a three-dimensional breathable sheet, comprising a breathable sheet body (10) and a mounting ring (30). The breathable sheet body has a three-dimensional geometric breathable structure (20), which is composed of a plurality of geometric surface units arranged and combined in three-dimensional space. The maximum opening size of each pore is less than 2 mm, which can block small insects from passing through and maintain ventilation. In a preferred embodiment, a spiral icosahedral structure is adopted and manufactured by 3D printing. The mounting ring is an independent ring part with threads on its inner side that lock with the threads on the outer side of the breathable sheet body. The outer side has a non-slip structure and can be locked to the corresponding specification opening on the wall of the box. This invention can be made in different outer diameter sizes to correspond to various closed boxes that require ventilation and insect prevention. The breathable sheet body is integrally molded from thermoplastic polymer material (PLA, PETG, ASA or ABS) and can be disassembled, cleaned and reused as a whole.

Claims

1. A three-dimensional breathable sheet, comprising: a breathable sheet body having a three-dimensional geometric breathable structure, the three-dimensional geometric breathable structure forming a plurality of interconnected pores, the maximum opening size of each pore being less than 2 mm, allowing air to circulate while blocking small insects from passing through, the outer side of the breathable sheet body having a fixing structure; and an mounting ring, which is an independent annular part, the inner side of which has a corresponding fixing structure for engaging with the fixing structure of the breathable sheet body to fix the breathable sheet to an opening in a box wall.

2. The three-dimensional breathable sheet as described in claim 1, wherein, The three-dimensional geometric breathable structure is composed of a plurality of geometric surface units arranged and combined in three-dimensional space, and the openings of each geometric surface unit form the connected pores.

3. The three-dimensional breathable sheet as described in claim 2, wherein, The three-dimensional geometric breathable structure is a spiral polyhedron structure, with each face of the polyhedron forming the aforementioned interconnected pores.

4. The three-dimensional breathable sheet as described in claim 3, wherein, The helical polyhedral structure is a helical tetrahedral structure.

5. The three-dimensional breathable sheet as described in claim 1, wherein, The fixing structure on the outer side of the breathable sheet body is an external thread, and the fixing structure on the inner side of the mounting ring is a corresponding internal thread, and the two are locked together.

6. The three-dimensional breathable sheet as described in claim 1, wherein, The outer side of the mounting ring is provided with an anti-slip structure for locking the mounting ring to the wall of the housing.

7. The three-dimensional breathable sheet as described in claim 1, wherein, This breathable sheet system is integrally molded from a thermoplastic polymer material, which is selected from PLA, PETG, ASA or ABS.

8. The three-dimensional breathable sheet as described in claim 7, wherein, The thermoplastic polymer material is one of PLA, PETG, or ASA.

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