Freezer case including self-conforming baffles

Inactive Publication Date: 2005-11-17
CARRIER COMML REFRIGERATI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] A defrost mode is performed to melt the ice and frost. The fan is turned off and a heater is activated to melt the ice and frost. When the fan is turned off, the baffles drop to a vertical, straight position due to gravity. The vertical baffles create resistance in the airflow and prevent heat and moisture generated by the heater from entering the freezer compartment and forming frost on the frozen items.

Problems solved by technology

The heat generated by the heater melts the ice and frost on the evaporator, generating a significant amount of moisture.
If the moisture enters the freezer compartment, frost can form on the frozen food and affect the appearance of the frozen food.
A drawback to employing fixed baffles is that they block the airflow during normal operation, causing an excessive pressure drop and misdistribution of the airflow.

Method used

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  • Freezer case including self-conforming baffles
  • Freezer case including self-conforming baffles
  • Freezer case including self-conforming baffles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018]FIG. 1 illustrates an example reach-in glass door freezer 10. A glass door 12 is pivotally attached to the freezer 10 by a hinge 14 and is moveable between an open position and a closed position. The freezer 10 defines a freezer compartment 16 that stores and freezes frozen items 18, such as food. The frozen items 18 are stacked on shelves 20 in the freezer compartment 16.

[0019] When a shopper wants to obtain one of the frozen items 18, the shopper pivots the door 12 to the open position and obtains the desired frozen item 18. The shopper then closes the door 12 to maintain the cool air in the freezer compartment 16.

[0020] As further shown in FIGS. 2 and 3, the freezer 10 further includes a fan panel 22. Warm and humid air from the freezer compartment 16 enters the fan panel 22 through a return air grill 24. A fan 26 draws the air inside the fan panel 22 through an evaporator 28 for cooling. In the evaporator 28, the warmed air from the freezer compartment 16 exchanges heat ...

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PUM

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Abstract

A freezer includes a freezer compartment in which frozen items are stored and frozen. Air from the freezer compartment is drawn into a fan panel by a fan. The air is cooled in an evaporator and then returned to the freezer compartment. Flexible baffles are provided in the fan panel. During normal operation, the airflow created by the fan deflects the baffles, allowing the air to flow through the fan panel unhindered. When ice and frost forms on the evaporator, a defrost mode is initiated to melt the ice with heat generated by a heater. The fan is turned off, and the baffles drop to a straight vertical position due to gravity. The vertical baffles create resistance in the airflow and prevent the heated air and moisture generated by the heater from entering the freezer compartment and forming frost on the frozen items.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates generally to a freezer including flexible baffles proximate to the evaporator that are in a vertical position due to gravity during a defrost mode to prevent moisture from escaping into the freezer compartment and deflect due to the airflow created by a fan during normal operation to allow air to flow without hindrance. [0002] Reach-in glass door freezers are commonly used in grocery stores to store and freeze frozen food in a freezer compartment. The freezer includes an evaporator that cools the air in the freezer. Warm and humid air from the freezer compartment is drawn into the evaporator by a fan. In the evaporator, the warm air from the freezer compartment exchanges heat with the exterior air, cooling the air. The cooled air is then returned to the freezer compartment. [0003] During normal operation, moisture on the evaporator forms frost and ice, reducing the gap between the evaporator fins and increasing resista...

Claims

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Application Information

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IPC IPC(8): F25D17/04F25D17/06F25D21/06F25D21/08
CPCF25B2700/11F25D21/08F25D17/062F25D17/045
Inventor GUPTE, NEELKANTH S.LORZADEH, JAMIEDECKER, DAREN
Owner CARRIER COMML REFRIGERATI
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