FI65139B - FUKTSAMLARANORDNING FOER EN FRYS - Google Patents

Description

65139

The present invention relates to a dehumidifier according to the preamble of claim 1.

5 Such a device is needed in the freezer to prevent moisture in the air from condensing and freezing on the cooling surfaces of the freezer.

In normal use, room air can enter the freezer when food is taken in and out.

10 A layer of ice gradually accumulates on the cooling surfaces of the freezer, consisting of the moisture in the air in the freezer. The ice layer must be removed from time to time by defrosting the freezer. During defrosting, food in the freezer must be removed from the freezer. Once the freezer has been charged and cleaned, a new layer of frost on the cooling surfaces is formed immediately after start-up. The ice layer gradually grows until it has to be removed by melting again.

The object of the present invention is to eliminate the above-mentioned drawbacks and to provide a simple and practical moisture collection device.

It is known that silica gel, anhydrous calcium chloride and the like hygrophilic substances can be used to absorb moisture in the air. In the disclosed device-25 solutions, the absorbent material is placed either in a container part made of a porous material (DE patent publication 925 312) or in a container made of metal, ceramic, bakelite or the like, provided with one or more holes (DK patent publication 66 379 50 and GB Patent 1,378,360).

Other types of chemical containers are known in the art. GB application 2 01 * 1 713 describes a storage bag 35 for a refrigerant absorbing and storing chemical (ethylene glycol mixture) for use in a cooler bag, consisting of elongate compartments connected at their sides. The trays are made of colored, dense plastic material.

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Finally, with regard to the prior art, reference is made to DE 2 225 597, which describes an air humidifier in which the water content of the tank part can be monitored by monitoring the color 5 of the cobalt salt as an indicator.

The present invention starts from the premise that by combining components known per se from different fields of technology, a completely new structural solution of a moisture collecting device is obtained.

The invention is based on e.g. to the following thoughts:

The device is constructed in the form of a corrugated mat made of a porous material. Such a mat has the largest possible moisture absorption area.

15 - The mat contains silica gel or the like which adsorbs moisture.

The mat is equipped with a transparent window from which the color of the silica gel can be observed and the adsorption capacity can be observed to run out.

More specifically, the device according to the invention is mainly characterized by what is set forth in the characterizing part of claim 1.

The invention provides considerable advantages. Thus, the mat does not need fixed structures 25 or much space, and can be placed in any type of freezer. It is cheap in structure and material. It can be revived by heating the mat to a temperature of about 180 ° C. By preventing the freezer from forming, the device also saves both extra work and energy.

The invention will now be examined in more detail by means of an exemplary embodiment according to the accompanying drawing.

Figure 1 shows a mat 35 according to the invention in a cross-sectional view.

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Figure 2 shows the mat of Figure 1 in a top view.

According to the drawing, the dehumidifier comprises a corrugated mat 1-4 made of a porous material, e.g. fabric, 5 plastic or metal mesh, the tray folds 1 of which are filled with granular silica gel 3 containing a blue indicator color

10 The freezer dehumidifier mat 1-4 is placed on the freezer shelf or on top of the freezers, where the silica gel 3 inside the mat adsorbs without moisture water. When the adsorption capacity of the silica gel 3 is exhausted, it loses its blue color, which can be seen from the window 4.

Silica gel which has lost its adsorption capacity can be revived, i.e. regenerated in an oven at a temperature of about 180 ° G, utilizing, for example, the residual heat in the oven after baking. As a result of the heat, the moisture 20 is removed from the mat and the color of the silica gel changes back to blue. The silica gel thus revived is allowed to cool and the mat is placed back in the freezer. The silica gel mat can be revived over and over again.

2S. . .

J In the example case, the elongate tray folds 1 are connected to each other by their edges 2, e.g. by knitting or by heat pressing.

It is clear that other solutions than those described in the example described above can be considered within the scope of the invention. Thus, the compartments can be, for example, spherical or box-shaped, and many other adsorbing or absorbing agents can be used instead of silica gel.