Portable cold accumulator charging in deep freeze store - involves holding several accumulators in close contact with several deep cooled walls and maintaining contact during charging

摘要

The charger of ice blocks (16), which are suitable for camping sites etc., has a rectangular casing with three chambers at the top, each closed by a releasable hinged lid. Each chamber is divided into two sections holding two blocks, end to end enclosed by a insulating layer (8) of plastics foam. The cover carries a resilient silicone rubber sheet across its inside surface, which is brought into contact with a similar sheet over the surface of the chamber, for a good seal when closed. The chambers are supported above a refrigerating unit inside the base. Inside each chamber is a spray tube for distributing refrigerating medium against the underside behind the covering sheet, and a system of supply tubes (18,21). The supply of refrigerating medium is controlled by an automatically operated circuit.