DE4126958A1 - ENERGY SAVING INSULATING LAYER FOR GLAZED SALES COOLING FURNITURE - Google Patents

Abstract

The invention relates to a refrigerated display cabinet whose refrigerated goods compartment is accessible via at least one glass door, and in which the pane and/or the frame of the glass door and/or the contact profile of the glass door can be heated electrically in order to avoid condensation of water vapour on the inside and outside of the pane. In order to be able to switch the electric heating off during shop closing times, an energy-saving insulation cover is positioned vertically in the refrigerated cabinet between the refrigerated goods compartment and the glass door. A cold-insulating plastic is used as an energy-saving insulation cover. Furthermore, a coating serving for additional cold-insulation can be applied. <IMAGE>

Description

The invention relates to a refrigerated display case, the refrigerated Goods room is accessible via at least one glass door and at which the pane and / or the frame of the glass door and / or that Glass door system profile can be heated to a condensation of water vapor on the inside and Avoid the outside of the pane.

Under the name sales refrigeration units are refrigerated counters, Cooling shelves, refrigerated display cases, refrigerators and similar furniture too understand in which goods that are at temperatures below the Ambient temperature are stored.

Glazed refrigerated display cabinets generally have one electrical heating of the glass door system profiles and the Glass doors, with both the pane and the door frame be heated. This ensures that the surfaces temperature of the glass doors and system profiles above the Dew point of the ambient air. However, there is also Glass door constructions in which only the frame and the System profiles, but not the disc are heated z. B. at  a 4-way insulation or washer. This way fogging of the windows due to condensation Avoid water vapor from the ambient air. During the Opening the doors to remove goods from the refrigerated Goods room does come because of the drop below the dew point fogging up the cold inside of the windows, however, after the doors are closed, the electrical Heating for a quick evaporation of the condensate.

The electric heater can also be used during closing times usually not switched off, as it then turns to falling below the dew point on the outside of the pane and an associated condensation of water vapor.

The object of the present invention is therefore a sale to indicate refrigerated cabinets of the type mentioned, the one before has direction that the operation of the electric heating the glass doors and system profiles during the closing times can become unnecessary.

This object is achieved in that the Refrigerated display cabinets have an energy-saving insulation layer that during the closing hours vertically between the chilled Goods room and the glass door is positioned.

The energy-saving insulation layer reduces the heat emission, existing end from heat radiation, convection and conduction from the reverse exercise air through the glass doors and system profiles in the cool warehouse. Because the reduced heat emission is a surface temperature of the glass doors and system profiles causes the upper is half the dew point of the ambient air the electric heating during the closing times more necessary. This results in a significant saving of electrical energy since both the electrical heating turned off, as well as the load on the chiller, for  the cooling of the goods area is necessary to be reduced can, because it occurs when operating the electric heating ting additional warming effect of the cooled goods room is avoided.

It proves to be particularly advantageous if the energy-saving Insulation layer on one, in the upper area of the cooled Goods store attached shaft stored in the rolled state becomes. The positioning of the energy-saving insulation layer is according to appropriate further training of the subject matter of the invention, both by means of an electric motor driving the shaft and also by manual means, e.g. B. by attaching a crank or forming the energy-saving insulation layer as a snap roller blind, possible.

An alternative embodiment of the invention The device provides the energy-saving insulation layer outside store the refrigerated goods room and only when necessary Attach to designated attachment points in the to position the refrigerated goods area. This solution comes without moving parts, but requires storage for the energy-saving insulation layer not required during the Shop opening times and means for the operating personnel an additional amount of time. This can solve the latter problem be met that the energy saving insulation layer not required in a storage space in the base of the refrigerated display cabinet is stored.

In an advantageous embodiment of the subject matter of the invention finds a cold-insulating as an energy-saving insulation layer Plastic use. Of course, in addition to plastic other materials conceivable that the posed Meet the requirements for cold insulation and rollability. For the case that the storage of the energy-saving insulation layer outside of the refrigerator, the plastic used not being rollable.  

In a further embodiment of the invention, the energy Spar insulation layer with additional cold insulation serving coating. For this, z. Legs Aluminum coating, but also other, known to the expert, cold insulating materials.

The invention as well as further details of the invention will be using two schematically illustrated exemplary embodiments explained in more detail.

Here show:

Fig. 1 sectional view of a glazed refrigerator or freezer

Fig. 2 sectional view of a glazed fridge or freezer combination.

In the two embodiments have the same parts same reference numbers.

Fig. 1 is a sectional view of a glazed cooling and freezer 1. Between the cooled goods room 2 and the glass door 3 and the glass door system profile 4 , the energy-saving insulation layer 5 is shown in the rolled state of the shaft 6 .

The refrigerator or freezer combination shown in Fig. 2 differs from Fig. 1 only in that only the upper part, namely the cabinet structure, is provided with an energy-saving insulation layer 5 .

Claims (7)

1. Sales refrigerated furniture, the refrigerated goods space is accessible via at least one glass door and in which the pane and / or the frame of the glass door and / or the glass door system profile can be electrically heated to prevent condensation of water vapor on the pane inside and outside Avoid, characterized in that the refrigerated display cabinet has an energy- saving insulation layer, which is positioned vertically between the cooled goods room and the glass door during closing times. 2. refrigerated display cabinet according to claim 1, characterized in that the energy-saving insulation layer on one, in the upper Area of the refrigerated goods fastened shaft in the rolled up condition is stored. 3. refrigerated display cabinet according to claim 1 or 2, characterized records that the positioning of the energy-saving insulation layer by means of an electric that drives the shaft motors. 4. refrigerated display cabinet according to claim 1 or 2, characterized records that the positioning of the energy-saving insulation layer by means of manual rolling from the shaft.   5. refrigerated display cabinet according to claim 1, characterized in that the energy-saving insulation layer outside of the cooled Goods room stored and pre-attached by attaching to it see attachment points in the refrigerated goods room is positioned. 6. refrigerated display cabinets according to claim 1 to 5, characterized records that a cold as an energy-saving insulation layer insulating plastic is used. 7. refrigerated display cabinet according to claim 1 to 6, characterized records that the energy-saving insulation layer with a than additional cold insulation coating is provided.