US 11,723,159 B2
Thermally insulated, rigid cabinet
Fang-Shou Lee, Taoyuan (TW); Cho-Han Lee, Taoyuan (TW); and Fang Wang, Livermore, CA (US)
Assigned to Fang-Shou Lee, Taoyuan (TW); and Cho-Han Lee, Taoyuan (TW)
Filed by Fang-Shou Lee, Taoyuan (TW); and Cho-Han Lee, Taoyuan (TW)
Filed on Jul. 26, 2021, as Appl. No. 17/385,901.
Prior Publication US 2023/0026587 A1, Jan. 26, 2023
Int. Cl. H05K 5/00 (2006.01); H05K 5/02 (2006.01); H05K 7/14 (2006.01)
CPC H05K 5/0213 (2013.01) [H05K 7/1488 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A thermally insulated, rigid cabinet, comprising:
a top cover;
four side walls having a tri-layer structure; and
a base having a tri-layer structure;
wherein the tri-layer structure includes an inner honeycomb panel, a middle strengthening assembly, and an outer wall panel; the middle strengthening assembly is formed by a plurality of horizontal tension rods and a plurality of vertical tension rods intersecting; the top cover, the side walls, and the base are connected with and fixed to one another by an aluminum extrusion fixing assembly; the aluminum extrusion fixing assembly comprises a first aluminum extrusion tube, a second aluminum extrusion tube, and a third aluminum extrusion tube; the first aluminum extrusion tube is connected in parallel side-to-side to the second aluminum extrusion tube, the first aluminum extrusion tube is connected in perpendicular side-to-side to the third aluminum extrusion tube; the first aluminum extrusion tube is provided with a first, long groove located on a first sidewall thereof; a sidewall of the first long groove extends inwards to form a protruding portion; a leak-proof groove is provided on a bottom side within the first long groove.