DE7726333U1 - FREEZER OR REFRIGERATOR - Google Patents

Description

Λ AO 1

G. Bauknecht GmbH
7000 Stuttgart 1

.Freezer or. fridge

The invention relates to a freezer or refrigerator according to the preamble of claim 1.

The frozen food stored in the freezer or in the freezer or freezer compartment of the refrigerator, such as meat, Fruit, vegetables and other frozen foods must be removed from the cabinet for further use be thawed. If you leave the frozen food in the normal air temperature of the kitchen for this purpose, this takes a long time. If the housewife wants to speed up thawing, she has to warm up the frozen food. this is difficult or not easily possible and required with the possibilities available in kitchens In any case, considerable time is spent on preparation and monitoring -

It is therefore the object of the invention to give the housewife in a simple manner the opportunity in the relevant Thawing frozen food previously stored in the freezer or refrigerator relatively quickly by applying heat, without having to make cumbersome preparations and monitor the thawing.

This object is achieved by the invention specified in claim 1.

The condenser arranged in the ceiling is said to be a ceiling condenser designated. - 4 -

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With this invention, the housewife has the possibility of frozen food that is suitable for rapid thawing, to thaw relatively quickly on the defrosting plate or tray. For example, fast drying is suitable for this Frozen food (quick-frozen food). Also sensitive frozen food that does not defrost too quickly may also be faster than by the air temperature in the measure according to the invention be thawed in the kitchen by not placing it directly on the defrosting plate or tray, but in one There is a pot or container that is placed on the defrosting plate or tub and so lower temperatures than the defrosting plate or pan. This thawing process does not result in any additional energy costs.

The ceiling condenser normally has temperatures during operation from 40 to 70 C. If these temperatures are not fully effective on the defrosting plate or tray want to leave, you can for this purpose a temperature gradient between the ceiling condenser and the defrosting plate or a tub. According to an advantageous embodiment, this can be achieved by having a Provides air gap between the ceiling condenser and the defrosting plate or tray within the cabinet ceiling and / or between the ceiling condenser and thawing plate Or -trough a thin plate made of a poorly conductive material, such as plastic or the like. Arranges. Or to For the same purpose it can be provided that the defrosting plate or pan is made of metal and on or on both sides with a plastic layer, preferably

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a plastic film, laminated, which the heat transfer lowers and creates a temperature gradient.

In many cases, however, it is advantageous to provide for the defrosting plate or pan to be made exclusively of metal to be established and preferably to be arranged in direct contact with the horizontal ceiling condenser, i.e. to sit on him.

Since it is well known that frozen food is particularly good for quick thawing without the risk of damage suitable, the invention is particularly advantageous in freezers with quick freezer. The invention can but also with other freezers and also with refrigerators with freezer compartment or freezer compartment with advantage be applied.

It is preferably provided that the refrigeration machine, in addition to the ceiling condenser, has a second, outside of the Has the cabinet body arranged condenser, the useful normally larger heat exchanger capacity than the Ceiling condenser may have.

For reasons of the simplest and cheapest possible construction of the refrigeration machine, it is useful if the Ceiling condenser is connected in series with the second condenser, so that both condensers are in operation of the refrigeration machine are constantly traversed by the refrigerant of the refrigerant circuit of the refrigeration machine. The defrosting plate or tray is then ready for defrosting frozen food at any time without prior manipulation.

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In some cases, however, it may be desirable to provide that the defrosting plate or pan is only heated or The full power is only heated when frozen food is to be thawed. In this case you can

Ver ^ lüssicrex ' when constantly in series with the second% "r-damp * e-r-

Ceiling condenser, ceiling condenser

teten Jteek-e-eer-provide between the pelvic • steam-e ^? and the defrosting plate or tray a heat-insulating one To arrange the sliding plate from the front of the cabinet completely or substantially can be pulled out, so that when the thermal insulation plate is completely or substantially pulled out, the ceiling condenser the defrosting pan or plate is heated and not or only significantly reduced when the sliding plate is pushed in heated.

Another possibility to turn off the heating of the defrosting plate or tray by the ceiling condenser, can consist of the ceiling condenser arranged in parallel to one outside of the refrigerator body to switch second condenser and to provide valve means to switch off the ceiling condenser, so that only the second condenser is then flowed through by refrigerant and the ceiling condenser is switched off is. The ceiling condenser is only switched on when frozen food is to be defrosted.

An exemplary embodiment of the invention is shown in the drawing. Show it

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1 is a diagrammatic rear oblique view a household freezer shown in dash-dotted lines, however, the compressor and the two condensers of the refrigerating machine not shown in further detail this cabinet are shown fully extended,

FIG. 2 is an enlarged side view of the upper region of the freezer according to FIG. 1 Representation with a lengthways cut ceiling.

The freezer 10 shown partially in phantom in FIG. 1 has a refrigerator housing 11 and In addition to the freezer compartment or compartments used for permanent storage of the frozen food, a quick freezer compartment can also be advantageous for quick freezing of food. It has a door 12 on the front.

The compressor 13 of his refrigeration machine is arranged on the rear of the housing 11 near its bottom, and a second condenser arranged in series on the rear of the housing 11 above the compressor 13 is attached to it and / via a connecting line 15 connected, im Inside the ceiling 16 of the housing 11 arranged condenser 17, which because of its arrangement in the Be referred to ceiling as a ceiling fan and in this preferred embodiment of a horizontally arranged pipe coil 18 and the horizontal pipe 19 consists / connected.

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The ceiling 16 has a metallic frame 20 and one made of foamed plastic such as polyurethane Thermal insulation 21 on. The ceiling condenser is located in a stepped recess 22 at the top of this thermal insulation 21 17 arranged lying on the thermal insulation 21.

The top of the ceiling 16 is essentially formed by a metallic defrosting pan 23, which is expediently made of may consist of stainless steel sheet and has a shallow recess 24, which extends substantially over the Width and horizontal length of the refrigerator housing 11 extends.

The frame 20 of the ceiling 16 is over the back of the housing 11 also extended downwards at 25 completely open hollow, and this metallic extension 25, the may also consist of plastic, has passages 27 at the top for the second condenser 14 rising warm air. These top passages 27 also serve to discharge through the ceiling condenser 17 heated warm air.

The area between the defrosting pan 23 and the top of the step-shaped recess 22 of the thermal insulation forms an air gap 29 in which the E-2Ckenverschlagig ^ r 17 in contact with the defrosting pan 23 and the Thermal insulation 21 is arranged lying horizontally. The ceiling condenser 17 is in contact with the flat bottom 30 of the defrosting pan 23. The ceiling condenser

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extends essentially over the width and length of this flat bottom 30 of the defrosting pan 23, to a large extent around it to be heated evenly. The output line 32 of the ceiling condenser 17 leads to the one or those not shown, in the freezer interior arranged evaporators of the refrigeration machine, of which the suction line 33 to

13th
Compressor / recirculates. The connecting line 15 is a simple pipe without a valve, so that both condensers 14, 17 continuously have refrigerant flowing through them when the refrigerating machine is in operation and are connected in series.

23

The air gap 29 between the defrosting pan / and ceiling insulation 21 goes open into the hollow extension 25 of the cabinet ceiling and communicates with the freezer 10 surrounding atmospheric air.

In order to thaw frozen goods more quickly, it is placed in the defrosting tub 2 '\, where it thaws relatively quickly due to the increased temperature of this defrosting tub 23 in conjunction with the heated air rising from it. If slower but still accelerated thawing is desired, the frozen food can be placed in a pot or container that is placed on the bottom 30 of the defrosting

! dew pan touches down.

] In a non-illustrated modification of the cabinet 10

a worktop is on the top of the ceiling 16

f hinged / hinged in their horizontal, downward

folded position covers the defrosting pan 23 and for

j the thawing of frozen food is folded up so that the

To make the defrosting tray accessible.

7726333 01.1177

Claims (8)

■ · · ■ ■ »Gbm 4421 - 1 - Protection claims 1. Freezer or at least one freezer or Refrigerator with freezer compartment for households, with a refrigeration machine, preferably a compressor refrigeration machine, which has at least one condenser, characterized in that inside the ceiling (15) of the freezer or refrigerator (10) a condenser (17) is arranged, above which a through it heatable, the Upper side or part of the upper side of the cover (16) forming flat which is used to thaw frozen food The defrosting pan (23) or the defrosting plate is located. 2. Freezer uder refrigerator according to claim 1, characterized characterized in that the arranged in the ceiling (16) Condenser (17) in series with a second condenser (14) arranged at the rear of the cabinet (10) is switched. 3. Freezer or refrigerator according to claim 1 or 2, characterized in that the condenser arranged in the ceiling connected in parallel to a condenser arranged at the rear of the cabinet and by means of a manually operated switch can be switched on and off. -2- I I ■ P 1} 1 »· »Ill» U ί »· - 2 - 4. Freezer or refrigerator according to one of the preceding Claims, characterized in that the defrosting pan (23) or plate consists of metal. 5. Freezer or refrigerator according to one of the preceding Claims, characterized in that the in the ceiling (16) arranged condenser (17) within an air gap (29) between the defrosting plate or pan (23) and the ceiling-side thermal insulation (21) of the cabinet (10) is arranged. 6. freezer or refrigerator according to claim 5, characterized in that the air gap (29) with communicated with the ambient atmosphere of the cabinet. 7. Freezer or refrigerator according to one of the preceding Claims, characterized in that the condenser (17) arranged in the ceiling (16) is on the Thermal insulation (21) rests on the ceiling. 8. Freezer or refrigerator according to one of the preceding Claims, characterized in that the defrosting plate or pan (23) is on the one below it Condenser (17) rests. 7726333 oi.i2.77