Internal heating type constant-temperature composite heat-insulation box inner sheet material

Abstract

The invention discloses an internal heating type constant-temperature composite heat-insulation box inner sheet material. The internal heating type constant-temperature composite heat-insulation box inner sheet material comprises a hard plastic base plate, wherein a second heat-insulation connection membrane, a honeycomb plate, a fist heat-insulation connection membrane, a thin-layer chromatography silica gel plate and a waterproof cloth layer are flatly paved, stuck and fixed on the hard plastic base plate in sequence through an adhering layer; the thin-layer chromatography silica gel plate is provided with a plurality of PTC (Positive Temperature Coefficient) ceramic heating sheets in a matrix manner; the plurality of PTC ceramic heating sheets are electrically connected through a connection circuit and are electrically connected with an external power supply through a connection circuit; magic tapes are fixed at two sides of the honeycomb plate; the waterproof cloth layer covers theupper side of the thin-layer chromatography silica gel plate through the magic tapes and is clung to the PTC ceramic heating sheets.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to an inner plate of an internal heating type constant temperature composite thermal insulation box. Background technique [0002] With the improvement of living standards and the rapid development of the catering industry, food delivery is a new profit growth point in the catering industry. Enjoying all kinds of delicacies at home and family has become a healthy and natural way of life, which is more common in foreign developed countries. It is also becoming more and more popular in the country. The incubator has attracted the attention of the catering industry with the concept of safety and environmental protection, cold and heat preservation, and easy portability; the incubator is divided into different types according to the product texture, including plastic, foam, metal, wooden and other incubators. . [0003] In order to reduce the weight of the traditi...

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Problems solved by technology

[0003] In order to reduce the weight of the traditional incubator, the foam board material is often used to make the incubator. Although its weight is light, its insulation effect and structural stability are poor. When juice enters the interior of the incubator, its cleanability is poor. Poor, easy to breed bacteria; lead to low reuse rate of the entire incubator, which is a waste of resources, so it needs to be improved urgently

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