SK100699A3 - Refrigerated shelf - Google Patents

Abstract

In addition to a cooling system (32, 34, 45) providing a cooling air flow (10, 26) around the shelves, the system comprises a collecting duct (40) for collecting air (38') heated by the components of the refrigeration system. The duct extends upwards at the back of the shelve unit, separated from the cooling air duct (26) and directs the heated air towards a deflector (44) at the top of the unit.

Description

Drawer cooling rack

Technical field

The invention relates to a socket-type cooling rack with a cooling unit placed in the lower part, through which the condenser heated by it is discharged through a channel separately from the cooling air stream serving to cool the useful space of the cooling rack into the environment.

BACKGROUND OF THE INVENTION

A cooling box of the above-mentioned type is known, for example, from DE-OS 24 58 981, which has a cooling unit with a condenser and a compressor located at the bottom. Through the heat transfer part of the aggregate, such as a condenser and / or compressor, an air flow is conducted, which removes heat to the store separately from the cooling air flow used to cool the useful space.

A drawer cooling cabinet is also known from DE 196 35 265 A1, whereby a heat transfer circuit is provided which serves to remove condensation heat from the coolant circuit, wherein the transfer of condensation heat from the coolant circuit to the ambient air occurs via the auxiliary heat carrier circuit.

Finally, a cooling device with a condenser is known from DE 41 14 915 A1 which is surrounded by a flow channel for cooling air. This is to provide cooling air with a temperature that is below the air temperature in the area of installation of the cooling device, for example from the basement area of the building in question or from its outside area, depending on where the air temperature is lower. The outlet heated by the condenser may flow freely from the flow channel surrounding the condenser to the area where the device is installed or may be discharged from the area by means of a discharge line. The heated exhaust can also be fed to a heat removal device, for example a heat pump.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The object of the invention is to continuously remove the heat from the condenser of the cooling unit from the cooling rack and preferably from the store in the summer in the case of a drawer cooling rack of the above type.

This object is achieved according to the invention in that the hot air duct is part of the cooling rack, the duct having a lower part formed as a collecting tube which extends along the rear side of the cooling rack from above to the lid wall and opens into a branch, the connected outlet to the environment as well as the heat recovery device and the exhausted warm air can be led to the environment or to the heat recovery device by means of a branch.

Preferred embodiments of the invention are set forth in the subclaims.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages and applications of the invention will be apparent from the following description of an embodiment according to the drawings.

The drawings show:

Fig. 1 shows a cooling rack used in the bottom with a built-in cooling unit, FIG. 2 shows a plan view of a wall of a cooling rack lid, and FIG. 3 is a view of the duct system at the back of the cooling rack.

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1 is a front elevational view, partially in cross-section, of a known and frequently used self-service refrigeration rack around which, as indicated by arrows 10 ', a closed air stream 26 cools in a closed belt while separating the cooled interior 12' from the external space 14 ' have a room temperature to create a comfortable environment for customers.

For separating the cooling interior 12 'from the exterior space 14', a roller blind (not shown) can be provided, which is wound onto the shaft 18.

The chilled interior 12 'is delimited from below by a plate 20' on which chilled objects (not shown), in particular foodstuffs, are deposited and stored. In the region of the upwardly extending chilled interior 12 ', a plurality of horizontal rack shelves 22 to 24 are placed at the rear wall through which the cooling air stream 26 passes, to which further chilled objects can be deposited. A protrusion 28 'extends above the cooled interior 12', which directs the cooled air stream 26 again in the horizontal direction to the slot 30 at the outer end through which the cooling air stream 26 exits the protrusion 28 'in the vertical direction. In the region of the plate 20 ', a return air stream is generated via the suction channel 31, cooled through the evaporator 32 and blown into the cooling air channel 46.

A refrigerant compressor 34 is located in the lower part of the drawer cooling rack. The fan 38 continuously sucks in ambient air at room temperature via the condenser 45, according to arrows 37 indicating suction. The heated air stream 39 flows through the dew tray 47 and the compressor 34 and enters, separately from the previously explained cooling air stream 26, into the collecting tube 40 which extends upwardly on the rear wall of the cooling rack, as shown in particular in FIG. 3. The collecting tube 40 is funnel-shaped. Its downwardly extending end is connected to a channel having a condenser 45 and a compressor 34. The funnel is connected over the entire width of the channel. The collecting tube 40 tapers to the upper end of the cooling rack. This design of the manifold 40 prevents the air from being compressed in the air stream 39 and the exhaust duct 38 ', so that a rapid outflow is achieved. At the upper end of the cooling rack, the collecting tube 40 is bent horizontally and further directed on the wall 42 of the cooling rack lid to the branch 44, as shown in FIG. Second

Fig. 2 shows a plan view of the self-service cooling rack of FIG.

1. The air sucked from the outside 14 'and then heated by the condenser 45 is guided through the collecting pipe 40 upwards, and on top of the cooling rack continues horizontally to the wall 42 of the cooling rack lid. As already mentioned, it terminates at a branch 44, from which the heated air stream 39 either continues through the outlet 50 into the environment or is fed to a heat recovery device (not shown), for example a water heater.

The heat generated by the cooling unit during cooling can be optimally used in this way.

PATENT CLAIMS

Claims (3)

optimal use. PATENT CLAIMS A drawer refrigerated rack with a cooling unit located at the bottom, with a condenser (45) for discharging the heated air flow (39) through a channel separate from the cooling air flow (26) for cooling the useful space of the cooling rack into the environment, the duct for discharging the heated air stream (39) forms part of the cooling rack, the duct having a lower portion formed as a collecting tube (40), which is located along the rear wall of the cooling rack up to the wall (42) of the cooling rack lid and opens into a branch (44) ), wherein an outlet (50) is connected to the branch (44) and also a heat recovery device for discharging the warm air stream (39) via the branch (44) either to the surroundings or to the heat recovery device. Drawer cooling rack according to claim 1, characterized in that the heat recovery device comprises a heat exchanger for heating the media. Drawer cooling rack according to claim 1 or 2, characterized in that the collecting tube (40) is funnel-shaped and is connected by its lower part to a channel having a condenser (45) and a compressor (34) and at the upper end of the cooling rack. the rack is created tapered. List of reference numbers used 10 'arrow 12 'interior space 14 'outside area 18 shaft 20 'board 22 first shelf compartment 23 - second shelf compartment 24, a third rack 26 in front of the cooling air 28 'projection 30 slit 31 suction channel 32 odpamík 34 compressor 37 intake arrow 38 fan 38 'drain 39 air flow 40 collecting pipe 42 wall lid 44 branch 45 capacitor 46 cooling air duct Dew bath 50 output 1/3