Passive car refrigerator

Abstract

The invention relates to a passive vehicle-mounted chill box. The passive vehicle-mounted chill box comprises a thermal insulation box body and a cool storage material arranged in the thermal insulation box body, wherein the thermal insulation box body consists of a plurality of walls forming a chill box main body; the walls comprise outer shell layers, vacuum insulated panels and inner shell layers; rigid polyurethane foam bodies fill between the outer shell layers and the vacuum insulated panels; rigid polyurethane foam bodies fill between the inner shell layers and the vacuum insulated panels; the thermal insulation box body is provided with a pressure relief device. According to the passive vehicle-mounted chill box, a direct cooling mode that the cool storage material is vaporized, absorbs heat and is diffused into the box body is adopted, and as a power supply system for supplying power to a motor compressor is not required, the size of the whole chill box can be greatly reduced, the chill box is adapted to transportation of different kinds of goods or a small number of goods, and the transportation cost can be obviously reduced when different kinds of goods or a small number of goods are transported.

Description

technical field [0001] The invention relates to the technical field of refrigerated transportation, more specifically, the invention relates to a passive vehicle-mounted refrigerated box. Background technique [0002] Refrigerated transport devices refer to facilities and devices that can maintain a certain low-temperature environment and transport low-temperature goods; and refrigerated containers are the last link in the cold chain. Refrigerated transportation should have good cold insulation and ventilation equipment; the box body should have good heat insulation performance, should have certain ventilation equipment, and can be cleaned; it should have the characteristics of heavy load, large effective volume, light weight, and good applicability. Items that require refrigerated transportation mainly include fresh vegetables, fruits, aquatic products and other foods, and usually include smaller items such as medicines, vaccines, and electronic components. In the prior a...

AI Technical Summary

Problems solved by technology

In the prior art, refrigerated transportation usually adopts large-scale containers that are refrigerated by electric compressors, that is, commonly referred to as active refrigerated transport boxes; If a full container of goods such as precision electronic components or medicines is transported in an active refrigerated transport box, it is necessary to provide electrical energy to ensure the normal operation of the electric compressor during transportation, especially when transporting small items or requiring different refrigerated temperatures The transportation cost is increased during the transportation of mixed items

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