Cold storage device

A solar powered ice-lined cold storage device comprising:

• an insulated body;
• a cooling space within the insulated body;
• a cold storage compartment within the cooling space arranged at an interior of the ice-lined cold storage device;
• an ice-lining which extends around at least 50% of a periphery of the cold storage compartment and which is configured to absorb heat from the interior of the cold storage device;
• a cooling circuit configured to be power by one or more solar panels and configured, when in operation, to remove heat from the ice-lining;
• an inner liner which circumscribes the cold storage compartment and defines a substantially continuous perimeter of the cold storage compartment, the inner liner being arranged between the cold storage compartment and the ice-lining, and the inner liner comprising i) a heat conducting metal sheet having a first major surface which faces towards the cold storage compartment and a second major surface which faces towards the ice-lining;
• and ii) a thermally insulting foam material which separates the cold storage compartment from the ice-lining and which is arranged between the heat conducting metal sheet and the ice-lining;
• and an electrical heating element provided by an electrical heating wire which extends around at least 70% of a perimeter of the inner liner and which is arranged at the second major surface of the heat conducting metal sheet of the inner liner between the heat conducting metal sheet of the inner liner and the thermal insulating foam material of the inner liner;
• wherein the ice-lined storage device is configured to operate with it's the cold storage compartment having a temperature which is maintained between +2° C. and +8° C.;
• and wherein the electrical heating wire is configured to operate using power supplied by the one of more solar panels with a power consumption which is ≥5 W and ≤50 W.