EP3367024A1 - Refrigerated cabinet - Google Patents

Abstract

The invention relates to a refrigerated unit (1) having a goods compartment (67), with a heat pump arrangement, which is designed to cool air, which is moved by means of a fan (58) through the goods compartment (67), wherein the heat pump arrangement one of a Refrigerant flowed through evaporator (53) for cooling the air and a likewise flowed through by the refrigerant recooler (54), in which the refrigerant, which was previously evaporated in the evaporator (53) by heat absorption from the air passed to him, is re-liquefied, wherein in the liquefaction resulting heat is at least partially discharged from the recooler (54) on the recooler (54) guided past air. According to the invention, the air heated with the passage of the recooler (54) is led to the outside of the refrigerated cabinet (1) with the aid of at least one air-conducting element (57), wherein the air-directing element (57) is designed such that the outwardly directed air on an outside of at least one door (2) of the refrigerated cabinet (1) passes.

Description

The present invention relates to refrigerated cabinets and individual features thereof, wherein the features described below in any combination are part of the invention, provided that there are no technical inconsistencies.

It should also be noted that the individual aspects can also be realized in merchandise display furniture, not the cooling of goods such. As food, serve. The individual features can therefore also be realized in merchandise display furniture, which do not serve as refrigerated cabinets.

Generally, in the prior art, refrigeration units are known which have doors pivotable about vertical pivot axes, wherein the doors are preferably transparent and comprise one or more interconnected transparent glass panes.

The invention relates to the air duct within a refrigerated cabinet. In general, it is always desirable that there is no condensation on the inside and outside surfaces of the doors of a refrigerated cabinet, as this would affect the insight into the goods space.

First, the refrigerated cabinet, which takes into account this requirement, a heat pump assembly, via which the air is cooled in the goods room. The heat pump assembly comprises a compressor for a heat transfer medium in which the pressure of the gaseous heat carrier flowing into the compressor is increased, the heat carrier remaining gaseous. The temperature of the heat carrier is thereby increased. The heated heat transfer medium then passes into the area of a recooler (other designation: Condenser). There, the heat transfer medium condenses and releases heat to the environment of the recooler.

The heat carrier condensed by the recooler passes in liquid form into the region of a throttle element, in which the pressure of the heat carrier is reduced without changing the state of aggregation. The heat carrier is thereby further cooled.

From the throttle element, the cold liquid heat carrier finally reaches an evaporator. There, the heat transfer medium absorbs heat from the air, which is conducted past the evaporator (for this purpose, for example, a fan, that is to say a fan or a fan, is used). Due to the heat absorption, the heat transfer medium evaporates and returns to the evaporator, so that the heat transfer circuit is closed.

In order to prevent the doors from fogging around in the area of their lower outer side by condensation of atmospheric moisture, it is advantageous if the air heated by the recooler is led out of the refrigeration unit into its surroundings in such a manner that it exits or shortly thereafter leaves the refrigerated cabinet the lower outside of one or more doors of the refrigerator passes. The warm air prevents fogging or causes the outside of the door to dry if condensation has formed in this area (for example during a period in which the heat pump arrangement is not being operated).

Preferably, the refrigerated cabinet has one or more inlets through which air from the environment of the refrigerated cabinet can flow into the refrigerated cabinet. The incoming air is z. B. sucked by means of a fan and flows through one or more channels in the interior of the refrigerator. The one or more channels should be separated from the one or more cavities through which the sucked out of the goods space and after cooling by the evaporator in the goods space back flowing air is passed.

The one or more inlets are preferably in the upper part of the cabinet, z. B. arranged in the ceiling area or in the region of the furniture head. Likewise, an arrangement in the side or bottom area of the cabinet is possible.

Further, the refrigerated cabinet should have one or more outlets through which the air drawn in via the inlet or inlets can again flow out of the refrigerated cabinet after it has been heated by the recooler.

The outlet (s) are preferably located in the area of the side (s) of the refrigerator on which doors are located. Preferably, the outlet or outlets are arranged in the bottom region of the refrigerated cabinet. In particular, the outlet (s) adjacent to a ramming protection (when looking at the doors, preferably behind, above and / or below the ramming protection) may be arranged, which extends along the side (s) on which doors are also arranged.

In particular, it is advantageous if the one or more outlets are associated with one or more air guide elements, wherein the one or more air outlets may also be part of the outlet or the.

The air guide element, of which several can be present, can be present, for example, as an air guide plate (made of metal or plastic). In particular, it causes a deflection of the air flowing out of the outlet or outlets in the direction of one or more doors in the lower region thereof.

The refrigerator may have only a single goods space or a single front with one or more doors. It is also conceivable, however, that the refrigerated cabinet is a combination of individual pieces of furniture, in particular several so-called longitudinal pieces of furniture or several so-called head pieces or a mixture of the two.

In particular, each individual piece of furniture of a refrigeration cabinet consisting of several pieces of furniture should have its own heat pump arrangement. The remaining sections / components / elements should be present separately for each individual furniture. The individual pieces of furniture are thus preferably so-called "plug-in" pieces of furniture which have all the components necessary for the operation of the piece of furniture.

Preferably, the refrigeration furniture comprises at least two longitudinal furniture, which are placed with their backs against each other, so that the doors of the two longitudinal furniture are arranged on two opposite and outwardly facing and mutually parallel outer sides of the cabinet.

Preferably, a cavity is present between the two longitudinal furniture through which the preferably sucked-in air flows down into one or more cavities in which one or more recoolers are arranged.

It is also advantageous if the refrigerator has X longitudinal furniture X two times (X is between 1 and 10), in each case two longitudinal furniture with their rear side facing away from the doors together. In case more than two longitudinal furniture are present, also always the same number of longitudinal furniture are arranged side by side.

The longitudinal furniture each have a front side with one or more doors over which the goods space behind it is accessible. Furthermore, it is advantageous if a head unit is arranged in the region of one or both end faces of the refrigerated cabinet. The respective head furniture serves as a connection between two adjacent, with the back up juxtaposed, longitudinal furniture.

In particular, the head furniture is arranged such that it adjoins with its rear side on each side of a longitudinal piece of furniture, wherein said side is the area which is perpendicular to the door front of the longitudinal piece of furniture.

Preferably, the back of the head piece is at least partially open, so that shelves can extend from the long sides to the goods compartment of the adjacent head unit.

The head unit (s) preferably also have doors, with doors being arranged in the area perpendicular to the front of the longitudinal furniture (= plane formed by the doors of the longitudinal furniture). Additionally or alternatively, doors should be arranged in the plane of the head unit or furniture, which is parallel to or in the same plane in which the doors of the longitudinal furniture are located.

The refrigerator can therefore consist of several individual pieces of furniture. Preferably, an even number of longitudinal furniture is present, wherein the longitudinal furniture has doors only in the region of a front side, wherein the front side extends in the width direction of the longitudinal piece of furniture. A longitudinal furniture thus has a back, two perpendicular to this extending sides and the said front, over which the goods room is accessible.

Preferably, two or two longitudinal furniture with their back side to each other, so that the longitudinal furniture on two sides facing away from each other have doors.

The refrigerated cabinet also includes one or two head units. A first head furniture can adjoin with its back on each of a first side of two adjacently arranged longitudinal furniture. A second head furniture (if available) can adjoin with its back on each of a second side of said longitudinal furniture. Instead of one longitudinal furniture can be between The two headboards also be arranged more than two longitudinal furniture. Also, only a head unit can be present.

All longitudinal furniture of the refrigerator should have doors in the area of its front. All headboards should have doors in the area of their front and both sides. The doors are preferably designed as sliding doors.

In addition, the sides of the longitudinal furniture, which adjoin a head unit, should have no continuous side wall. The goods space thus preferably extends from one or two head furniture in the two adjacent longitudinal furniture. If more than two longitudinal furniture are present, the goods spaces of laterally adjacent longitudinal furniture should also be connected to one another, i. not separated by partitions, be.

The refrigerated cabinet preferably has a single goods compartment, which preferably extends into a head unit and two (or X times 2) adjacent longitudinal furniture or in two head furniture and the longitudinal furniture arranged therebetween.

The sides of the longitudinal furniture, which adjoin neither a further longitudinal furniture still a headboard, may have a closed, continuous side wall, said side wall may be wholly or partially formed by one or more glass to also from the said pages an insight into the To allow goods room.

Incidentally, part of the invention is also a head unit which has one or more doors both in the area of its front side and in the area of one or both sides.

Figur 1

eine Frontansicht eines Kühlmöbels,

Figur 2

eine Schnittdarstellung eines Kühlmöbels,

Figur 3

eine Perspektive eines Kühlmöbels,

Figur 4

die Ansicht gemäß Figur 3 mit zusätzlichen Details.

Further advantages of the invention are described in the following exemplary embodiments. It show, each schematically:

FIG. 1

a front view of a refrigerated cabinet,

FIG. 2

a sectional view of a refrigerated cabinet,

FIG. 3

a perspective of a refrigerator,

FIG. 4

the view according to FIG. 3 with additional details.

In the following, features of refrigerated cabinets 1 and their components are described, wherein the individual features can be combined as desired, provided that no obvious contradictions arise.

In addition, it should be noted that in figures that have similar and thus identically represented elements or sections, in some cases only one of the elements or sections is provided with a reference numeral in order to ensure a good overview. Finally, it should be clarified that not all figures / components are provided with a reference numeral in all the figures if they have already been provided with a reference numeral in earlier figures.

FIG. 1 shows a front view of a refrigerated cabinet 1 with a frame 28 (ie, a base to which the other elements of the cabinet 1 are attached directly or indirectly), a plurality of pivotable about a vertical pivot axis doors 2, the doors 2 usually one or more to each other spaced glass panes 17 include that allow the view into the interior of the cabinet 1.

The storage of the doors 2 each includes a not shown lower door storage and an upper door storage 4, so that each door 2 about its two bearings, z. B. by means of a handle 3, between an open and a closed position are pivotable. Alternatively, it is of course also possible to move the doors 2 by means of a drive.

As FIG. 1 shows further, the doors 2 are mounted on their upper door bearing 4 on or in the so-called furniture head 5. This is, for example, a horizontal transverse strut which forms the upper region of the refrigerated cabinet 1 or is arranged behind a panel.

Preferably, no vertical supports are arranged between the individual doors 2 in order not to impair the view into the interior of the refrigerated cabinet 1.

A further advantageous aspect shows FIG. 2 in which a cross section of a double-sided refrigerator 1 is shown. Equally illustrated and thus similar sections / elements are otherwise always provided only in one of the two longitudinal furniture 65 of the cabinet 1 with a reference numeral to ensure a good overview.

The refrigeration unit 1 basically comprises two mirror-image or equal longitudinal furniture 65, which stand with their backs against each other. The longitudinal furniture 65 each have a frame 28, a plurality of doors 2 which are slidably mounted on a not shown storage on the frame 28, a plurality of shelves 51 for the presentation of food, and a heat pump assembly for cooling the goods space 67th

The heat pump arrangement comprises, inter alia, a heat transfer circuit with a compressor, not shown, an evaporator 53, via which the air guided by means of a fan 58 is cooled, a throttle element (not shown) and a recooler 54 (condenser) for the heat carrier.

During operation of the heat pump arrangement, air flows through the action of a fan 58 from the goods compartment 67 through an air inlet 52 into a first cavity 55 which is designed as an air guide channel 49. There, the air is cooled by means of the evaporator 53 and finally flows through an air outlet 50 back into the goods space 67th

A second air flow extends from upper inlets 75 between the rear sides of the longitudinal furniture 65 and is moved by means of a further fan 58 into lower cavities 55 of the longitudinal furniture 65. The inlets 75 are z. B. formed by means of individual supports 61 spaced discs, wherein two cover plates 60 which are connected in a manner not shown with the frame 28 of the longitudinal furniture 65 may be covered by a common cover plate 59.

In the lower cavities 55, the air finally flows around the recooler 54 and is thereby heated. In order to avoid fogging of the doors 2 in their lower area, it is advantageous if the heated air with the aid of air guide elements 57 is led past the exiting from the cavities 55 on said outer sides of the doors 2 and the doors 2 dries continuously or protects against fogging. The air outlet via one or more outlets 76, which could be formed, for example, slit-shaped.

The air guiding elements 57 may, for example, be air baffles which guide the air in the region of the doors 2 in the region of a ram guard 56 arranged at the bottom. The corresponding air flow 48 is shown by dashed lines.

Another aspect of a refrigerator 1 show the Figures 3 and 4 , While FIG. 21 shows the outer features of the refrigerated cabinet 1, a part of the interior of the refrigerated cabinet 1 can also be seen in FIG.

In general, the individual doors 2 comprise transparent glass panes 17, so that the view into the goods compartment 67 is ensured even with the doors 2 closed, even if this is done in FIG. 3 does not seem.

In general, the refrigerator 1 in the case shown consists of two longitudinal furniture 65 and a head unit 64, wherein the individual sections are placed together and connected together as needed. The connecting region of the two longitudinal furniture 65 and the head unit 64 is replaced by a with the Reference numeral 63 marked line marked. Incidentally, a further head furniture 64 can also be arranged on the left rear side, so that the two longitudinal furniture 65 can each be connected in the region of their front sides via a head unit 64.

Further shows FIG. 4 in that a common display with one or more shelves 51 can be arranged inside the refrigerated cabinet 1, the z. B. can be attached via a center support 66. The shelves 51 extend both in the region of the longitudinal furniture 65 and in the region of the head or the furniture 64, so that a common goods space 67 is formed.

In order to be able to reach all the goods placed on the shelves 51 from the outside, it is provided that the head furniture 64 has a plurality of doors 2. Thus, doors 2 may be arranged on the sides, which represent the extension of the longitudinal furniture 65 and their doors. In addition, doors 2 may be arranged in the region of the head unit or the 64, which extend perpendicular to the doors 2 of the longitudinal furniture 65. As a result, finally, three sides (if only one head furniture 64 is present) or even four sides (if there are two head furniture 64) can be opened by opening the respective doors 2.

Of course, more than two longitudinal furniture 65 may be present between the two head furniture 64, which are then arranged side by side.

The present invention is not limited to the illustrated and described embodiments. Variations within the scope of the claims are just as possible as any combination of the features described, even if they are shown and described in different parts of the description or the claims or in different embodiments, provided that no contradiction to

The teaching of the independent claims arises.

LIST OF REFERENCE NUMBERS

1

refrigeration cabinets

2

door

3

Handle

4

Upper door storage

5

furniture head

17

pane

28

frame

48

airflow

49

air duct

50

air outlet

51

shelf

52

air inlet

53

Evaporator

54

drycoolers

55

cavity

56

Rammschutz

57

air guide

58

Fan

59

cover disc

60

cover plate

61

support

63

connecting area

64

end cabinets

65

along furniture

66

center support

67

goods space

75

inlet

76

outlet

Claims (15)

A refrigerated unit (1) having a goods compartment (67), with a heat pump arrangement which is designed to cool air which is moved by means of a fan (58) through the goods compartment (67), wherein the heat pump arrangement comprises an evaporator through which a coolant flows ( 53) for cooling the air and a likewise flowed through by the coolant recooler (54), in which the refrigerant, which was previously vaporized in the evaporator (53) by heat absorption from the air passed to him, is liquefied again, resulting in the liquefaction Heat is at least partially discharged from the recooler (54) on the recooler (54) guided past air,
characterized in that with the passage of the recooler (54) heated air with the aid of at least one air guide (57) to the outside of the cabinet (1) is passed, wherein the air guide (57) is formed such that the outwardly directed air to an outside of at least one door (2) of the refrigerated cabinet (1) passes. Refrigerator (1) according to the preceding claim, characterized in that the refrigerated cabinet (1) has one or more inlets (75) through which air from the environment of the refrigerated cabinet (1) can flow into the refrigerated cabinet (1). Refrigerator (1) according to one of the preceding claims,
characterized in that the cooling furniture (1) has one or more channels in the interior of the refrigerated cabinet (1), flows through the air, the z. B. by means of a fan (58) is sucked. Refrigerator (1) according to one of the preceding claims,
characterized in that the one or more channels are separated from the one or more cavities (55) through which the air sucked out of the goods compartment (67) and returned to the goods compartment (67) after cooling by the evaporator (53) is passed. Refrigerator (1) according to one of the preceding claims,
characterized in that the one or more inlets (75) in the upper region of the refrigerated cabinet (1), for example in the ceiling area, in the region of the furniture head (5) or in the side or bottom region of the refrigerated cabinet (1) are arranged. Refrigerator (1) according to one of the preceding claims,
characterized in that the refrigerated cabinet (1) has one or more outlets (76) through which the air sucked in via the inlet (s) (75) can again flow out of the refrigerated cabinet (1) after being heated by the recooler (54) has been. Refrigerator (1) according to one of the preceding claims,
characterized in that the outlet (s) (76) are placed in the region of the side (s) of the refrigerated cabinet (1) on which doors (2) are located. Refrigerator (1) according to one of the preceding claims,
characterized in that the one or more outlets (76) in the bottom region of the refrigerated cabinet (1) are arranged. Refrigerator (1) according to one of the preceding claims,
characterized in that the one or more outlets (76) adjacent to a ram protection (56), in particular when looking at the doors (2) behind, above and / or below the Rammschutzes (56) arranged are, which extends along the side (s) on which also doors (2) are arranged. Refrigerator (1) according to one of the preceding claims,
characterized in that the one or more outlets (76) one or more air guide elements (57) are assigned. Refrigerator (1) according to one of the preceding claims,
characterized in that the one or more air guide elements (57) are present as air guide plate and preferably cause a deflection of the out of the one or more outlets (76) air flowing in the direction of one or more doors (2) in the lower region. Refrigerator (1) according to one of the preceding claims,
characterized in that the refrigerated cabinet (1) has only a single goods compartment (67) or a single front with one or more doors (2), or that the refrigerator (1) is a combination of individual furniture, in particular a plurality of such said longitudinal furniture or more so-called head furniture or a mixture of both, is. Refrigerator (1) according to one of the preceding claims,
characterized in that each individual piece of furniture of a refrigerator consisting of several pieces of furniture (1) has its own heat pump arrangement. Refrigerator (1) according to one of the preceding claims,
characterized in that the cooling furniture (1) at least two longitudinal furniture, which are placed with their backs together, so that the doors (2) of the two longitudinal furniture on two opposite and outwardly facing and mutually parallel outer sides of the cabinet (1) are arranged. Refrigerator (1) according to one of the preceding claims,
characterized in that between the two longitudinal furniture a cavity (55) is provided, through which the preferably sucked in upper air flows down into one or more cavities (55) in which or one or more recooler (54) are arranged.

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