Ice making in the refrigeration compartment using a cold plate

• US 8,794,014 B2
• Filed: 05/30/2008
• Issued: 08/05/2014
• Est. Priority Date: 05/30/2008
• Status: Active Grant

• Current Assignee: Whirlpool Corporation
• Original Assignee: Whirlpool Corporation
• Inventors: Kulkarni, Tushar, Amaral, Claiton Emilio Do
• Primary Examiner(s): Ali, Mohammad M
• Application Number:
  US12/129,713
• Publication Number:
  US 20090293501A1
• Time in Patent Office: 2,258 Days
• Field of Search: 62/66, 623/89, 624/41, 62/36.3, 623/53, 623/44
• US Class Current: 62/66
• CPC Class Codes: F25C 2400/10 Refrigerator units
• CPC Class Codes: F25C 5/22 particularly adapted for household refrigerators
• CPC Class Codes: F25D 11/025 using primary and secondary refrigeration systems
• CPC Class Codes: F25D 19/006 Thermal coupling structure or interface
• CPC Class Codes: F25D 23/12 Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove

Abstract

A refrigerator includes a refrigerator cabinet having a fresh food compartment and a freezer compartment. There is a fresh food compartment door for providing access to the fresh food compartment and an ice compartment mounted at the fresh food compartment door. A cold plate is mounted within the fresh food compartment and adapted for cooling the ice compartment when the fresh food compartment door is in a closed position.

Claims

1. A refrigerator comprising:

a refrigerator cabinet having a fresh food compartment and a freezer compartment;

a fresh food compartment door having an open position for providing access to the fresh food compartment and a closed position for restricting access to the fresh food compartment;

an ice compartment mounted at the fresh food compartment door and comprising an ice maker and an ice storage area wherein the ice storage area is separate from the ice maker and receives dispensed ice from the ice maker; and

a cold plate mounted at the fresh food compartment external of the both ice maker and ice storage area of the ice compartment, the cold plate being separated from the ice maker when the fresh food compartment door is in the open position and being adjacent to and in thermally conductive contact with the ice maker when the fresh food compartment door is in a closed position.

2. The refrigerator of claim 1 wherein the cold plate is mounted on a sidewall of the fresh food compartment and wherein an opening in the ice compartment is positioned proximate the cold plate when the fresh food compartment door is in the closed position.

3. The refrigerator of claim 2 further comprising an annular gasket mounted at the opening to assist in sealing the cold plate to the ice compartment when the fresh food compartment door is in the closed position.

4. The refrigerator of claim 1. wherein the cold plate is mounted on a top wall of the fresh food compartment and wherein an opening in the ice compartment is positioned proximate the cold plate when the fresh food compartment door is in the closed position.

5. The refrigerator of claim 1 wherein the cold plate is configured for removal of frost buildup.

6. The refrigerator of claim 1 wherein the freezer compartment is mounted below the fresh food compartment.

7. The refrigerator of claim 1 further comprising an ice and water dispenser mounted on the fresh food compartment door.

8. The refrigerator of claim 1 wherein the cold plate is in direct contact with at least a portion of the ice compartment when the fresh food door is in the closed position.

9. A refrigerator comprising:

a refrigerator cabinet having a fresh food compartment and a freezer compartment;

a fresh food compartment door for providing access to the fresh food compartment;

an ice compartment mounted on the fresh food compartment door;

an ice maker within the ice compartment;

an ice storage area within the ice compartment, wherein ice dispensed from the ice maker is stored in the ice storage area;

a cold plate mounted on a wall of the fresh food compartment and adapted for conductively cooling the ice maker sufficiently to produce ice with the ice maker when the fresh food compartment door is in a closed position;

an opening in the ice compartment corresponding with the cold plate such that the cold plate is adjacent to and in thermally conductive contact with the ice maker when the fresh food compartment door is in the closed position and is separated from the ice maker when the fresh food compartment door is in an open position;

wherein the cold plate is in direct contact with at least a portion of the ice maker when the fresh food compartment door is in the closed position;

wherein the cold plate is external of both the ice maker and ice storage area of the ice compartment.

10. The refrigerator of claim 9 further comprising an annular gasket mounted at the opening to assist in sealing the cold plate to the ice compartment when the fresh food compartment door is in the closed position.

11. The refrigerator of claim 10 wherein the cold plate is mounted on a sidewall of the fresh food compartment.

12. The refrigerator of claim 10 wherein the cold plate is mounted on a top wall of the fresh food compartment.

13. The refrigerator of claim 10 wherein the freezer compartment is mounted below the fresh food compartment.

14. The refrigerator of claim 10 further comprising an ice and water dispenser mounted on the fresh food compartment door.

15. A refrigerator comprising:

a refrigerator cabinet having a fresh food compartment and a freezer compartment, the freezer compartment mounted below the fresh food compartment;

a fresh food compartment door for providing access to the fresh food compartment when the door is in an open position;

an ice and water dispenser mounted on the fresh food compartment door;

an ice compartment mounted on the fresh food compartment door;

an ice maker and an ice storage area separate from the ice maker within the ice compartment;

a cold plate mounted on a wall of the fresh food compartment and adapted for conductively cooling the ice maker sufficiently to produce ice with the ice maker by being brought into thermally conductive contact with the ice maker when the fresh food compartment door is in a closed position, the cold plate being separated from the ice maker When the fresh food compartment door is in the open position;

an opening in the ice compartment corresponding with the cold plate when the fresh food compartment door is in the closed position; and

an annular gasket mounted at the opening to assist in sealing the cold plate to the ice compartment when the fresh food compartment door is in the closed position;

wherein the cold plate is in direct contact with at least a portion of the ice maker when the fresh food compartment door is in the closed position;

wherein the cold plate is external of both the ice maker and the ice storage area of the ice compartment.

16. A method of making ice in a bottom mount refrigerator having a refrigerator cabinet and a fresh food compartment and a freezer compartment within the fresh food compartment, the freezer compartment below the fresh food compartment, a fresh food compartment door providing access to the fresh food compartment, an ice maker mounted at an ice compartment on the fresh food compartment door, and a cold plate mounted at the fresh food compartment external of both the ice maker and an ice storage compartment of the ice compartment, the method comprising:

bringing the cold plate adjacent to and into thermally conductive contact with the ice maker by adjusting the fresh food compartment door into a closed position;

conductively cooling the ice maker with the cold plate; and

dispensing ice from the ice maker into the ice storage compartment.

17. The method of claim 16 wherein the ice compartment includes a portion movable between a closed position and an open position providing an opening for bulk ice access.

18. The method of claim 16 further comprising removing frost buildup from the cold plate.

19. The method of claim 18 wherein the removing frost buildup from the cold plate being performed by heating the cold plate.

20. The method of claim 16 wherein the cold plate is mounted on a side wall of the fresh food compartment.

21. The method of claim 16 wherein the cold plate is mounted on a top wall of the fresh food compartment.