一种冷藏车真空隔热夹层结构

Abstract

本实用新型属于隔热夹层技术领域，具体为一种冷藏车真空隔热夹层结构，包括外蒙皮、隔热层和内蒙皮，隔热层包括网格状支撑骨架和多个真空隔热板；支撑骨架由横向骨架和纵向骨架相互交错连接构成，真空隔热板分别嵌设在支撑骨架的网格单元内；弹性缓冲垫，设置于支撑骨架和外蒙皮，以及支撑骨架和内蒙皮之间，支撑骨架、真空隔热板、弹性缓冲垫、外蒙皮和内蒙皮之间的所有空隙内均填充有发泡填充材料；本实用新型在保持良好的保温效果的同时，降低车厢自重并增加车厢有效装载容积，同时通过网格状的支撑骨架定位真空隔热板，配合弹性缓冲垫减少车辆行驶过程中振动等因素对真空隔热板的影响，提高冷藏车隔热夹层结构的稳定性。

Claims

1. A vacuum insulated sandwich structure for a refrigerated vehicle comprising an outer skin (4), an insulation layer and an inner skin (5), characterized in that: The heat insulation layer includes a grid-shaped support framework (1) and a plurality of vacuum insulation panels (2); The support framework (1) is formed by the crosswise connection of a crosswise framework (101) and a longitudinal framework (102), forming a number of grid cells, and the vacuum insulation panels (2) are respectively embedded in the grid cells of the support framework (1); Elastic buffer pads (3) are arranged between the support framework (1) and the outer skin (4), and between the support framework (1) and the inner skin (5), and all the voids among the support framework (1), the vacuum insulation panels (2), the elastic buffer pads (3), the outer skin (4) and the inner skin (5) are filled with foaming filling materials.

2. A vacuum insulated sandwich structure for a refrigerated vehicle according to claim 1, characterized in that: Two rectangular frames (103) are fixedly arranged in each grid cell of the support framework (1), and the edge of the elastic buffer pad (3) is embedded between the two rectangular frames (103).

3. A vacuum insulated sandwich structure for a refrigerated vehicle according to claim 1, characterized in that: Both the crosswise framework (101) and the longitudinal framework (102) are made of aluminum alloy profiles, and the cross sections of the crosswise framework (101) and the longitudinal framework (102) are in a "return" shape.

4. A vacuum insulated sandwich structure for a refrigerated vehicle according to claim 1, characterized in that: The support framework (1) and the outer skin (4), and the support framework (1) and the inner skin (5) are fixedly combined through structural adhesives and mechanical fasteners.

5. A vacuum insulated sandwich structure for a refrigerated vehicle as defined in claim 1, characterized in that: The elastic buffer pad (3) is a closed-cell foam plastic board or a rubber gasket.

6. A vacuum insulated sandwich structure for a refrigerated vehicle according to claim 2, characterized in that: The edge of the elastic buffer pad (3) keeps a distance of 10 - 30 mm from the inner wall of the rectangular frame (103).

7. A vacuum insulated sandwich structure for a refrigerated vehicle as defined in claim 1, characterized in that: The foaming filling material is rigid polyurethane foam.

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