Refrigerating Plate for a Refrigerator or Freezer
a technology for refrigerators and freezers, applied in the field of refrigerators and freezers, can solve the problems of high pressure zone isolation and audible gurgling
Inactive Publication Date: 2008-10-16
RUBANOX CHAMBERY
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The invention is a vertical evaporating panel for cooling refrigerators or freezers. It consists of a roll bond type circuit with refrigerant flow channels. The panel has a descending part and an ascending part. Some of the channels in the descending part have a refrigerant accumulating area with a maximum height. The accumulating areas have a total volume that is half the cooling liquid's volume, and each accumulating area's height is less than 70% of the total height of the channel. The technical effect of this design is to improve the cooling efficiency of the refrigerator or freezer by allowing the panel to evaporate the refrigerant more effectively.
Problems solved by technology
When the compressor stops, the refrigerant migrates from the condenser to the evaporator because the high pressure in the condenser forces it towards the low pressure area consisting of the evaporator, the lack of a solenoid valve making it impossible to isolate the high pressure zone from the low pressure zone.
Particularly when there is no solenoid valve between the compressor and the evaporator, the compressor forces the gas into a large mass of liquid when it starts, thus causing audible gurgling.
Method used
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Embodiment Construction
[0014]The invention consists generally of providing channels in the descending part of an evaporating circuit comprising refrigerant accumulating areas so as to inhibit this liquid from completely filling in the channels at the bottom of the circuit. These accumulating areas are present on either only part or on all of the channels, and enable a relatively uniform distribution of liquid in the panel when the compressor stops, provided that the total volume of the accumulating areas is greater than or equal to half the total volume of the cooling liquid, such that the sound level is minimized when the compressor starts again.
[0015]However, it is important to prevent the accumulation of the cooling liquid from excessively reducing the passage of gas produced by evaporation of the cooling liquid, which could be detrimental to the thermal efficiency of the appliance. Consequently, the height hi of liquid in the accumulating area must be sufficient but must not exceed 70% of the total he...
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The invention relates to a vertical evaporating plate for refrigerating a refrigerator or freezer comprising a roll bond circuit which consists of refrigerant flow channels and comprises descending and ascending sections, wherein at least a part of the channels of the descending section comprise a liquid refrigerant accumulating area of a maximum height (hi), the totality of the heights (hi) is adjustable in such a way that the total volume of the accumulating areas is equal to or greater than half the volume of the liquid refrigerant and each height (hi) is less than 70% of the entire height of a channel (Hi). The inventive plate makes it possible to improve the thermal efficiency and reduce the sound level of a refrigerator or freezer.
Description
DOMAIN OF THE INVENTION[0001]The invention relates to a “roll-bond” type refrigerating panel for a refrigerator or freezer improving the thermal efficiency of the cooling circuit and reducing the sound level during operation.STATE OF THE ART[0002]The cooling circuit of a refrigerator or a freezer comprises a compressor designed to propel the cooling liquid, for example a fluorinated or chlorofluorinated hydrocarbon or an alkane, and an evaporator that can be in the form of a vertical panel, and also a panel with horizontal planes, for example in the plane separating the two compartments, for refrigerators with a freezer compartment.[0003]One of the methods of manufacturing the evaporating panel consists of making the cooling circuit using the so-called “roll bond” technique, in other words using two aluminum or aluminum alloy strips, one of which is coated, on the zones that will form the circuit, with an ink designed to prevent the two strips from being welded together. The two str...
Claims
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IPC IPC(8): F25B41/06F25B1/00F25D19/00F25B39/02F25B43/00F28F3/14
CPCF25B39/024F25B43/006F25B2500/01F25B2500/12F28F3/14F28F2265/28
Inventor GODIN, OLIVIER
Owner RUBANOX CHAMBERY