Refrigerator with efficient cold accumulator
First Claim
Patent Images
1. A refrigerator comprising:
- an inner box defining at least in part a refrigerator compartment therein, said inner box having an inner box outer surface;
an outer box generally covering said inner box;
cooling means for cooling said refrigerator compartment, said cooling means including an evaporator tubing wound around said inner box outer surface and thereby positioned outside of said refrigerator compartment and through which refrigerant flows, said evaporator tubing directly cooling said refrigerator compartment;
flexible cold accumulator packaging enclosing therein cold regenerative material and covering said evaporator tubing;
heat insulating material disposed between said inner and outer boxes and covering said flexible cold accumulator packaging; and
circulating means for circulating cold air in said refrigerator compartment, said circulating means comprising a cold air circulating path formed inside said inner box and in said refrigerator compartment and thereby separated from said evaporator tubing by said inner box, said cold air circulating path having an air inlet at a lower position of the inside of said refrigerator compartment and an air outlet at an upper position of the inside of said refrigerator compartment, a circulation fan having a power circuit and circulating cold air in said refrigerator compartment through said cold air circulating path, and a thermostat which detects the temperature inside of said refrigerator compartment and sends a signal associated with the detected temperature to said power circuit.
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Accused Products
Abstract
A cold preserving container including an inner box forming a heat insulating chamber, an outer box, heat insulating material between the boxes, a cooling evaporating tube disposed on the outer surface of the inner box, and a cold accumulator enclosing a cold regenerative material and disposed between the evaporating tube and the heat insulating material. The cold accumulator directly contacts the evaporating tube substantially without any air therebetween and thus can be cooled rapidly and efficiently by the tube. The cold accumulator is disposed between the boxes, and thus its capacity can be easily increased, thereby increasing the cold preserving time of the container.
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Citations
26 Claims
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1. A refrigerator comprising:
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an inner box defining at least in part a refrigerator compartment therein, said inner box having an inner box outer surface; an outer box generally covering said inner box; cooling means for cooling said refrigerator compartment, said cooling means including an evaporator tubing wound around said inner box outer surface and thereby positioned outside of said refrigerator compartment and through which refrigerant flows, said evaporator tubing directly cooling said refrigerator compartment; flexible cold accumulator packaging enclosing therein cold regenerative material and covering said evaporator tubing; heat insulating material disposed between said inner and outer boxes and covering said flexible cold accumulator packaging; and circulating means for circulating cold air in said refrigerator compartment, said circulating means comprising a cold air circulating path formed inside said inner box and in said refrigerator compartment and thereby separated from said evaporator tubing by said inner box, said cold air circulating path having an air inlet at a lower position of the inside of said refrigerator compartment and an air outlet at an upper position of the inside of said refrigerator compartment, a circulation fan having a power circuit and circulating cold air in said refrigerator compartment through said cold air circulating path, and a thermostat which detects the temperature inside of said refrigerator compartment and sends a signal associated with the detected temperature to said power circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A refrigerator comprising:
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an inner box defining at least in part a refrigerator compartment therein, said inner box having an inner box outer surface; an outer box generally covering said inner box; cooling means for cooling said refrigerator compartment, said cooling means including an evaporator tubing wound around and thereby encircling said inner box outer surface and through which refrigerant flows, said evaporator tubing directly cooling said refrigerator compartment; flexible cold accumulator packaging enclosing therein cold regenerative material and covering over said evaporator tubing with said cold regenerative material; heat insulating material disposed between said inner and outer boxes and covering said flexible cold accumulator packaging; and adhesive on the surface of said packaging on the side of said evaporator tubing. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A refrigerator comprising:
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an inner box defining at least in part a refrigerator compartment therein, said inner box having an inner box outer surface; an outer box generally covering said inner box; cooling means for cooling said refrigerator compartment, said cooling means including an evaporator tubing wound around and thereby encircling said inner box outer surface and through which refrigerant flows, said evaporator tubing directly cooling said refrigerator compartment; flexible cold accumulator packaging enclosing therein cold regenerative material and covering over said evaporator tubing with said cold regenerative material; heat insulating material disposed between said inner and outer boxes and covering said flexible cold accumulator packaging; path means for defining a cold air path in said refrigerator compartment and spaced from said evaporator tubing by said inner box; and circulating means for circulating cold air along the cold air path. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification