Refrigeration – With means preventing or handling atmospheric condensate... – By external heater
Patent
1998-09-16
2000-11-07
Bennett, Henry
Refrigeration
With means preventing or handling atmospheric condensate...
By external heater
62248, 220826, 220827, 220840, 220841, 220842, 220524, 220523, F25D 2106
Patent
active
061419842
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a device in a freezing counter comprising at least one cover to cover the whole opening of the freezing counter or parts of it, the cover being linkedly arranged between an open and a closed position.
Open freezing counters have been in use since a long time e.g. in daily shops. The reason for this is that the goods to be sold should be well exposed and easily accessible to the consumer. The increasing prices for energy and the increasing environmental consciousness, have, however, discovered the large waste of energy in this type of open counters.
For reducing the energy consumption attempts have been made with different kinds of covers arranged over the large openings of the counters, usually sliding or folding covers. To maintain the exposition of products these covers are made of a transparent material, usually plastics.
As is well known temperature differences inside and outside of the counter create an ice formation around the covers. The ice formation is especially a problem with folding covers. The water condensed on the upfolded cover has a tendency to leak downwards along the cover and freeze around the counter's flexible socket. The coldness of the counter and the repeated openings of the cover allow water to accumulate as ice impairing and in the worst case preventing any opening of the cover. This becomes especially difficult, if the covers flexible socket is elongated and tight, the surrounding air thus not being able to flow around the socket to prevent any freezing.
In known counters with foldable covers this problem has been solved by arranging the links and the covers pivoting axis at the side of the freezing counter, e.g. at the outside of the counter. By this arrangement the link will not be exposed to the low temperature in the freezing counter and thus there is no risk of freezing.
To solve the problem of icing in such a way is not acceptable. The shop area must be used in the most efficient way, the floor area being either free for customers or used for exposing goods. Therefore, the freezing counters are designed with the freezing aggregates placed under the actual goods exposing space, the customers thus having access to the frozen goods from all sides. This implies that the covers in use must have their links in the freezing counter opening and preferably along the middle of the freezing counter opening thus giving the customers access to the frozen goods from all sides. Thus, the link itself is exposed to the freezing temperature and icing problems will occur.
SUMMARY OF THE INVENTION
It is an object of the present invention to overcome the above mentioned problems.
The invention relates to a device for freezing counters comprising at least one cover to cover the whole opening of the freezing counter or parts of it, the cover being correctedly arranged between an open and a closed position, a heat emitting element being arranged close to the covers flexible socket. The invention is especially suited for shop counters and for similar applications with a risk of a freezing around the links.
The heat emitting element of the device might be an electric cable or a similar heat emitting element, e.g. a coil etc. Moreover, an air stream or a warm liquid passing e.g. a channel, a duct or similar might provide this heating emitting element.
The pivotable socket of the cover might comprise two oblong profile elements being mutually pivotable, the first profile element being arranged at the counter unit and the other profile element at the cover.
Furthermore, the profile element arranged at the unit might run along some part of the total unit length and several covers can be provided together closing the whole opening of the unit or parts of it, each cover possibly provided with a profile element pivotably connecting the cover to the units profile element.
The heat emitting element might preferably be placed at the part of the cover pivotable socket provided at the unit.
Furthermore, a spring element is provided in the device
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Lundgren Kenneth
Perzon Bjorn
Bennett Henry
Lop Lundgren & Perzon AB
Shulman Mark
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