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Food chiller with optimized air flow

A refrigerator, air flow technology, applied in food preservation, machines using electrical/magnetic effects, preservation of fruits/vegetables by freezing/refrigeration, etc., can solve problems such as reduced efficiency, heat loss, pressure drop, etc., to achieve optimal cooling Effects of air flow, optimized heat transfer efficiency, low manufacturing cost

Inactive Publication Date: 2009-12-30
DELTA T
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One reason is the cost and heat transfer efficiency of solid thermoelectric modules
In addition, the circulation of cooling air required for maximum cooling efficiency results in a complex piping system which greatly increases the cost of the container (typically made of molded plastic material)
Long and complex air circulation ductwork also results in heat loss and pressure drop, both of which can reduce efficiency or increase product cost
Another problem with existing refrigerators is the distribution of the cooling air in the food to be cooled

Method used

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  • Food chiller with optimized air flow
  • Food chiller with optimized air flow
  • Food chiller with optimized air flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1A fruit cooler 14 of one embodiment of the present invention is shown. The fruit refrigerator comprises a support base 1 for supporting the refrigerator on a horizontal plane. Within this base there is space for the various components of the cooling system, which will be described in detail here. The removable container 2 is placed on the base 1 . The removable cover 3 provides access to the food to be preserved. The interior of the container 2 is provided with inlet openings 4 for distributing cooling air into the container. The centrally located outlet opening 5 provides a return channel for the air. Once flowing through the opening 5 , the air will be cooled again and exit through the opening 4 . Although this is the preferred embodiment, it is also possible to reverse the gas flow so that opening 5 is used as an inlet opening and opening 4 is used as an outlet opening. The base 1, the container 2 and the removable lid 3 may all be made of injection mol...

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PUM

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Abstract

A food chiller including an enclosed container supported on a base receives a flow of cooling air from a Peltier effect thermoelectric module in the base through cool air inlet openings into the container. Air is returned from the container to the base by a fan mounted in the air duct system in communication with the cold sink of the thermoelectric device. In each of the disclosed embodiments, duct length is minimized and air flow into the container is optimized by air hole placement and orientation.

Description

technical field [0001] The present invention relates to an apparatus for refrigeration of fresh fruit and other fresh food products, and more particularly to an improved counter-mounted fruit refrigerator utilizing a Peltier effect thermoelectric device. Background technique [0002] Thermoelectric devices, operating according to the well-known Peltier effect, have been used as cooling / heating devices for many years. Such a thermoelectric device comprises an array of semiconductor couples, wherein the semiconductor couples are electrically connected in series and thermally in parallel. The semiconducting couple is sandwiched between metallized ceramic substrates. When DC current is applied in series to a thermoelectric device, the thermoelectric device acts as a heat pump, where heat is absorbed on the cold side, thereby cooling the cold side, while heat is dissipated on the other side. Reversal of the current flow will result in a reversal of the direction of heat flow. ...

Claims

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Application Information

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IPC IPC(8): F25B21/04F25D17/06F25D11/00A23B4/06A23B7/04A23L3/36A47G23/04A47J41/00F25B21/02
CPCA47G23/04F25B2321/023F25D17/06F25D2317/0651A23B4/066F25D2400/12F25D2317/0661A47J41/005F25B2321/0251F25B21/02
Inventor 乔治·A·克拉克马克·S·汤普森
Owner DELTA T
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