Modular temperature controlled shipping container

Abstract

An active temperature controlled modular shipping container may be in the active mode during flight. The container is also desirable for use in overland shipping operations as it provides accurate temperature control superior to known systems during transportation. The container can maintain a fixed temperature within 2° C. in ambient temperatures ranging from −20° C. to 49° C., using an integrated forced-air convection system for heating and cooling the cargo space of the container. The preferred embodiment of the container operates on rechargeable batteries and can maintain the selected temperature for at least 72 hours without recharging.

Description

BACKGROUND OF THE INVENTION[0001]Field of the Invention[0002]The subject invention is generally related to refrigerated / heated climate control shipping containers and is specifically directed to self-contained modular refrigerated / heated shipping containers capable of maintaining closely controlled temperatures for extended periods of time.[0003]Discussion of the Prior Art[0004]There is a compelling public interest in transportation of biomedical materials and other temperature sensitive materials both overland and by air. Typically, one of the drawbacks to these types of shipments is the inability to assure proper climate control during an extended period of time during transit and warehousing. A system having the ability to control the climate, particularly temperature, is essential in order to assure proper maintenance and viability of the materials.[0005]Temperature controlled shipping containers are part of a comprehensive cold chain which controls and documents the temperature...

AI Technical Summary

Benefits of technology

The self-powered shipping container described in this patent has a system for maintaining the desired temperature inside, even when the outside temperature is too hot or too low. It uses a high-efficiency compression cooling system when the temperature is too high and an electric heating element when the temperature is too low. The container has thin-walled insulation and a mechanical tie-through that reduces heat loss. The floor structure allows for direct loading and unloading with a forklift, and the containers can be stacked on all sides without affecting the air flow. These features make the container more efficient, flexible, and adaptable to various temperatures and shipment needs.

Problems solved by technology

Typically, one of the drawbacks to these types of shipments is the inability to assure proper climate control during an extended period of time during transit and warehousing.

The level of reliability for valuable, temperature-sensitive, or hazardous cargo typically can only be achieved using containers with active cooling systems.

However, in most cases the systems do not have the capability of assuring temperature control over an extended period, typically up to 72 hours, which is required to permit long distance shipping, particularly by air transit.

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