CN111669997A - Refrigerated sales cabinet - Google Patents
Refrigerated sales cabinet Download PDFInfo
- Publication number
- CN111669997A CN111669997A CN201880088343.4A CN201880088343A CN111669997A CN 111669997 A CN111669997 A CN 111669997A CN 201880088343 A CN201880088343 A CN 201880088343A CN 111669997 A CN111669997 A CN 111669997A
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- Prior art keywords
- cabinet
- refrigerated sales
- cooling air
- condensate
- air supply
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0408—Cases or cabinets of the closed type with forced air circulation
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0426—Details
- A47F3/0434—Glass or transparent panels
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Freezers Or Refrigerated Showcases (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
A refrigerated sales cabinet (2) according to an exemplary embodiment of the present invention, comprising: a cabinet body (4) comprising a cabinet top portion (6); and a refrigerated sales space (12) for storing goods to be displayed therein; a roof panel (14) upwardly bounding the refrigerated sales space (12); at least one transparent door (30) disposed in front of the refrigerated sales space (12) to provide access to the goods within the refrigerated sales space (12) from the front of the refrigerated sales cabinet (2); wherein an upper air duct (36) is formed between the cabinet top portion (6) and the ceiling panel (14), the upper air duct (36) extending from a rear portion to a front end element (20) and to an upper cooling air supply grid (24); wherein the front end element (20) of the upper air duct (36) and the upper cooling air supply grid (24) are spaced from the front end of the cabinet top portion (6) such that, in operation of the refrigerated sales cabinet (2), a cooling air supply airflow (42) flowing through the upper air duct (36) substantially downwardly exits the upper cooling air supply grid (24) and forms a cooling air curtain (44) extending from the upper cooling air supply grid (24) to a cabinet bottom front portion of the refrigerated sales cabinet (2); wherein at least one anti-condensate air flow passage (22) extends substantially horizontally through the front element (20) of the upper air duct (36) or between an upper panel of the cabinet top portion (6) and the front element (20) of the upper air duct (36) such that an anti-condensate air flow (46) is branched off from the cooling air supply air flow (42), flows through the anti-condensate air flow passage (22) and impinges on a baffle of the cabinet top portion (6) of the cabinet (4); and wherein the baffle (26) has a curved or inclined underside such that the condensate-proof airflow (46) is directed to an upper portion of the inner surface of the at least one transparent door (30).
Description
The present invention relates to a refrigerated sales cabinet comprising at least one transparent door configured to reduce the risk of condensation at such door.
For more efficient operation, refrigerated sales cabinets are often equipped with transparent doors, in particular glass doors, to establish a separation between the refrigerated sales space inside the refrigerated sales cabinet and the environment outside the refrigerated sales cabinet. A common problem is the formation of condensation at the transparent door, in particular at the inner surface of the transparent door, which is undesirable and should be avoided.
It is therefore an object of the present invention to provide an improved refrigerated sales cabinet which effectively avoids the formation of condensate at the transparent door and which does not require the introduction of active components, such as heaters or additional fans.
A refrigerated sales cabinet according to an exemplary embodiment of the present invention comprises:
a cabinet body including a cabinet top portion; and
a refrigerated sales space for storing goods to be displayed therein;
a ceiling panel that bounds a top side of the refrigerated sales space;
at least one transparent door disposed in front of the refrigerated sales space to provide access to the goods within the refrigerated sales space from the front of the refrigerated sales cabinet;
wherein an upper air duct is formed between the cabinet top portion and the ceiling panel, the upper air duct extending from the rear portion to a front end element of the upper air duct and to the upper cooling air supply grid;
wherein the front element of the upper air chute and the upper cooling air supply grid are spaced from the front of the cabinet top portion such that, in operation of the refrigerated sales cabinet, the cooling air supply airflow flowing through the upper air chute exits the upper cooling air supply grid substantially downwardly and forms a cooling air curtain extending from the upper cooling air supply grid to the cabinet bottom front portion of the refrigerated sales cabinet;
wherein at least one anti-condensate airflow passage extends substantially horizontally through or between the upper panel of the top portion of the cabinet and the front element of the upper duct such that the anti-condensate airflow is divided from the cooling air supply airflow, flows through the anti-condensate airflow passage, and impinges on the baffle in front of the top portion of the cabinet;
wherein the baffle has a curved or sloped bottom side such that the flow of anti-condensate gas is directed to an upper portion of the inner surface of the at least one transparent door.
According to an exemplary embodiment of the invention, the inner surface of the at least one transparent door, in particular the upper part thereof, is ventilated with cooled air from the inside. Thus, condensation can be prevented from forming on the inner surface of the at least one transparent door, in particular at the upper portion thereof.
By preventing the formation and accumulation of condensate on the inner surface of the at least one transparent door, particularly at an upper portion thereof, the humidity within the refrigerated sales space is reduced and unobstructed viewing of goods stored within the refrigerated sales space from the outside is ensured.
It has been found that when closing the at least one transparent door, a large amount of warm ambient air can enter the refrigerated sales space through the gap between two laterally adjacent transparent doors and/or through the gap between the door frame and the at least one transparent door in case the transparent doors are formed as pivoting doors and/or through the gap between the upper slide rail and the upper end of the at least one transparent door in case the transparent doors are formed as sliding doors.
By selecting a suitable number of anti-condensate air flow channels and/or by selecting a suitable cross-sectional area of the at least one anti-condensate air flow channel, it can be ensured that a major part of the cooling air supply flow flowing through the upper air duct leaves the upper cooling air supply grid substantially downwards and forms a cooling air curtain for cooling goods stored in the refrigerated sales space, in particular stored on shelves arranged therein, and that only a minor part of the cooling air supply flow is divided off to form an anti-condensate air flow which flows through the anti-condensate air flow channel, impinges on the baffle in front of the ceiling portion of the cabinet and is guided by the baffle to the upper portion of the inner surface of the at least one transparent door. This has proven sufficient to prevent the formation of condensation on the inner surface of the at least one transparent door.
The baffle, which may also be referred to as a reversing front section, may be positioned in front of a front element of the upper duct and may form a front end of a cabinet top portion of the furniture body. The baffle may extend across the entire width of the refrigerated sales space. Since the baffle has a curved or inclined bottom side, it is ensured that the condensate-proof air flow actually reaches the upper part of the inner surface of the at least one transparent door without bypassing it and prevents condensate from forming there.
Another benefit of exemplary embodiments of the present invention is simplicity in that the problem of condensate formation at the upper portion of the inner surface of the at least one transparent door can be addressed without modifying the design of the door or adding new active components, such as additional electric heaters or fans. The existing upper cooling air supply grid and the existing cooling air curtain can be maintained.
Existing refrigerated sales cabinets can be retrofitted with this solution by forming at least one anti-condensate air flow channel in or at the front element of the upper air duct and by modifying the front section of the underside of the cabinet top portion to form a baffle with a curved or inclined underside.
A number of optional features are set forth below. These features may be implemented in particular embodiments alone or in combination with any other features.
The transparent door of the refrigerated sales cabinet can be formed as any type of glass door. In particular, the transparent door may be formed as a sliding door that slides along an upper horizontal slide rail and a lower horizontal slide rail; or as a pivoting door arranged in a door frame.
By directing the anti-condensate airflow downwardly along the interior surface of the at least one transparent door to entrain warm ambient air entering the refrigerated sales space through such gaps, condensate formation is prevented over the entire interior surface of the at least one transparent door and not only at an upper portion thereof.
In another embodiment, the bottom side of the baffle has a rear portion disposed above the level of the condensate prevention flow path and a front portion disposed below the level of the condensate prevention flow path and includes an angle of 30 degrees to 80 degrees relative to a horizontal plane. The front end portion of the baffle may terminate immediately adjacent the upper end of the at least one transparent door. The bottom side of the baffle may comprise a smooth and/or curved transition between its substantially horizontal rear end portion and its front end portion.
In another embodiment where the transparent door may be formed as a sliding door that slides along upper and lower horizontal sliding tracks, the upper horizontal sliding track may be mounted to the bezel.
In another embodiment, the anti-condensate air flow forms a front cooling air curtain and the cooling air supply air flow forms a rear cooling air curtain. By arranging two such cooling air curtains one behind the other, both an improved temperature of goods on the shelf in a refrigerated sales cabinet is achieved and the formation of condensate over the entire inner surface of the at least one transparent door is prevented.
In another embodiment, at least one of the front end element of the upper duct and the baffle is integrally formed with the cabinet top portion.
In another embodiment, the front element of the upper duct may be formed as one or more separate elements mounted to the cabinet top portion, in particular as one horizontally extending beam mounted to the cabinet top portion; and/or the baffle may be provided as one or more separate elements mounted to the cabinet top section, in particular as one horizontally extending beam mounted to the cabinet top section.
In another embodiment, the at least one condensate-preventing air flow channel is dimensioned such that only 2% to 10% of the mass flow of the cooling air supply stream is branched off from the cooling air supply stream flowing through the cooling air supply grid.
In another embodiment, an anti-condensate airflow channel is provided that extends substantially across the width of the refrigerated sales cabinet corresponding to the width occupied by the at least one transparent door. The height of the anti-condensate gas flow channel may be in the range of 1mm to 5 mm.
In another embodiment, a plurality of anti-condensate airflow channels are provided across the width of the refrigerated merchandiser. 5 to 20 anti-condensate gas flow channels per meter width can be provided. Each such anti-condensate flow passage may have a 2mm diameter2To 20mm2Cross-section of (a).
Such embodiments provide a sufficient size of the anti-condensate gas flow and thus reliably avoid the formation of condensate on the inner surface of the at least one transparent door.
In another embodiment, the upper cooling air supply grid may have its rear end mounted in an airtight manner to a ceiling panel of the refrigerated sales space; and/or the upper cooling air supply grid may have its front end mounted in an airtight manner to the front end element of the upper air duct. Thus, a major portion of the cooling air supply airflow is forced to flow through the upper cooling air supply grille and form a cooling air curtain extending from the upper cooling air supply grille to the cabinet bottom front portion, in particular to a return air grille arranged at the cabinet bottom front portion of the refrigerated sales cabinet.
In another embodiment, the front end element of the upper duct includes a stepped cross-section. The front element of the upper air duct may comprise a stepped rear side and/or a flat front side on which the upper cooling air supply grid is mounted. The stepped rear side may comprise at least one inclined surface for directing a substantially horizontal cooling air supply air flow downwards to leave the upper cooling air supply grid.
By means of such an inclined surface arranged at the stepped rear side of the front end element of the upper wind tunnel, a major part of the cooling air supply air flow is guided through the upper cooling air supply grid to form a cooling air curtain allowing an improved and continuous cooling air flow.
At least one condensate resistant airflow passage may extend through such a baffle or through a transition between an upper end of the baffle and a substantially horizontal cabinet top panel of the cabinet top portion.
In another embodiment, the front of the cabinet top portion is retracted relative to the cabinet bottom front portion of the cabinet. Optionally, the front of the cabinet top portion and the cabinet bottom front portion lie in one vertical plane. With both refrigerated sales cabinets described in the two paragraphs above, the formation of condensate on the inner surface of the at least one transparent door is effectively prevented.
In another embodiment, at least one element of a vapor compression cycle, including an expansion device and an evaporator, is provided in one or more of the lower duct, the upright duct, and the upper duct.
Hereinafter, a refrigerated sales cabinet according to an exemplary embodiment of the present invention is described in more detail with reference to the accompanying drawings.
Figure 1 shows a schematic side view of a refrigerated sales cabinet; and
figure 2 shows an enlarged detail of the refrigerated sales cabinet of figure 1.
Figure 1 shows a schematic side view of a refrigerated sales cabinet 2. For ease of illustration, the left side wall of the refrigerated sales cabinet 2 is removed in fig. 1.
The refrigerated merchandiser 2 includes a cabinet 4 including a cabinet top portion 6, a rear wall 8 and a cabinet bottom portion 10 enclosing a refrigerated sales space 12 in which items of merchandise to be displayed therein may be stored and placed on respective shelves. In this embodiment, the refrigerated sales space 12 comprises a lowermost shelf and three intermediate shelves above which goods can be placed.
The refrigerated sales space 12 is limited by a lowermost shelf formed as a bottom panel 18, preferably a perforated rear panel 16 and a ceiling panel 14.
The cabinet bottom portion 10 includes a substantially horizontal floor and a cabinet bottom front portion extending upwardly therefrom.
A return air grille 34 is disposed between the front end of the bottom panel 18 and the cabinet bottom front portion. The return air is directed out of the refrigerated sales space 12 through such a return air grille 34 and to an evaporator (not shown) of a conventional vapour compression cycle.
A lower air duct 40 is formed between the bottom panel and the bottom panel 18 of the cabinet bottom portion 10 of the cabinet 4, an upright air duct 38 is formed between the rear wall 8 and the rear panel 16 of the cabinet 4, and an upper air duct 36 is formed between the substantially horizontal cabinet top portion 6 and the roof panel 14 of the cabinet 4.
The refrigerated sales cabinet 2 is provided with a transparent door 30 and has an access area extending between the front of the cabinet top section 6 and the upper end of the cabinet bottom front section.
With respect to the cabinet bottom front portion, the front of the cabinet top portion 6 is retracted a distance X such that the access area is angled with respect to the vertical plane. In an alternative embodiment not shown here, the front of the cabinet top section 6 and the cabinet bottom front section lie in one vertical plane.
In fig. 1, two transparent doors 30 are shown and are disposed in front of the refrigerated sales space 12. In an exemplary embodiment, the two transparent doors have a curved shape with a curved portion disposed approximately at the lower third of the height of the transparent door 30. The transparent door 30 is formed as a transparent sliding door 30 which is slidable to the left and right and guided in the upper slide rail 32 and the lower slide rail 28. The transparent sliding door 30 is movable between a closed position in which the article access area extending between the front of the cabinet top section 6 and the cabinet bottom front section is closed, and an access section in which the transparent sliding door 30 overlaps and allows access to the refrigerated sales space 12 for customers standing in front of the refrigerated sales cabinet 2.
However, it has been found that even in the closed position of the transparent sliding door 30, some warm ambient air may enter the refrigerated sales space 12 through the vertical gap between two laterally adjacent transparent sliding doors 30, through the gap between the upper slide rail 28 and the upper end of the transparent sliding door 30 and also through the gap between the lower slide rail 32 and the lower end of the transparent sliding door 30. In the embodiment of fig. 1, two transparent sliding doors 30 are arranged one behind the other.
Of course, instead of the transparent sliding door 30, a transparent pivoting door may also be provided.
A cooling air supply grille 24 is disposed between the front end of the roof panel 14 and the front end element 20 of the upper air duct 36 to supply fresh refrigerated air to the refrigerated sales space 6 and to form a curtain of cooling air 44 extending between the cooling air supply grille 24 and the cooling air return grille 34.
In particular, the cooling air supply grid 24 is arranged in an inclined manner such that the cooling air curtain 44 formed by the cooling air flow leaving the cooling air supply grid 24 is directed in the direction of the cooling air return grid 34 and in particular such that the angle of inclination of the cooling air supply grid 24 relative to the horizontal plane corresponds to the angle formed by the angle of the substantially vertical plane and the line connecting the cooling air supply grid 24 with the cooling air return grid 34.
The lamp unit 41 may be arranged in front of the cooling air supply grid 24.
The cabinet top portion 6 of the cabinet 4 comprises a cabinet top panel extending substantially horizontally from the upper end of the rear wall 8 to the front. The cabinet top portion 6 further comprises a front element 20 and a baffle 26. The front end member 20 and the baffle 26 may be integrally formed with the horizontal cabinet top panel. Alternatively, one or both of the front end element 20 and the baffle 26 may be formed as separate elements mounted to the cabinet ceiling. In particular, one or both of the front end element 20 and the baffle 26 may be formed as a horizontally extending beam mounted to the cabinet top panel 6.
The front end member 20 closes the upper duct 36 with respect to the front. The front end element has a stepped cross-section, seen from above and below, and in particular a stepped rear side, to the bottom side of which an upper cooling air supply grid 24 is mounted. The front face of the front end element 20 may be flat. The rear face of the upper wider portion of the front end element 20 may be angled to form an angled baffle for directing a substantially horizontal cooling air supply stream 42 downwardly through the cooling air supply grid 24 and away therefrom in the direction of the lower cooling air return grid 34 and forming a cooling air curtain 44.
At least one substantially horizontal condensate-proof airflow passage is provided and extends horizontally through the front end element 20 of the upper plenum 36.
The baffle 26 at the front of the cabinet top panel has a curved or inclined bottom side configured and arranged relative to the condensate prevention airflow channel 22 such that the condensate prevention airflow branched off from the cooling air supply flow 42 flows through the condensate prevention airflow channel 22 and impinges on the bottom side of the baffle 26 such that the condensate prevention airflow 46 is deflected and guided to an upper portion of the inner surface of the transparent sliding door 30.
To this end, the bottom side of the baffle 26 may have a rear portion disposed above the level of the condensate resistant air flow passage 22 and a front portion disposed below the level of the condensate resistant air flow passage 22 and including an angle of 30 to 80 degrees relative to the horizontal plane. The front end portion of the shutter 26 terminates at a position directly adjacent to the upper end of the transparent sliding door 30. In the embodiment of fig. 1 and 2, the underside of the baffle 26 includes a smoothly curved transition between its substantially horizontal rear end portion and its front end portion.
The anti-condensate air flow passage 22 is dimensioned such that only a small portion of the cooling air supply air flow 42, in particular only 2% to 10% of the mass flow of the cooling air supply air flow 42, is branched off from the cooling air supply flow flowing through the cooling air supply grille 24 and forming the cooling air curtain 44.
To this end, in the case of a continuous condensate-proof air flow channel 22 extending substantially across the entire width of the refrigerated sales cabinet 2, corresponding to the width occupied by the sliding door 30, the height of the condensate-proof air flow channel 22 is in the range 1mm to 5 mm.
If a plurality of anti-condensate airflow channels 22 are provided across the width of the refrigerated merchandiser 2 at a location above the transparent sliding door 30, 5 to 20 anti-condensate airflow channels 22 may be provided per meter width, and each such anti-condensate airflow channel 22 may have a width of 2mm2To 20mm2Cross-section of (a).
As can be seen in fig. 1 and 2, the anti-condensate air flow 46 is branched off from the cooling air supply air flow 42, flows through one or more of the anti-condensate air flow channels 22, impinges on the underside of the baffle 26, is deflected and directed to an upper portion of the inner surface of the transparent supply door 30, forms a second front cooling air curtain that flows down the inner surface of the sliding door 30 and merges with the first rear cooling air curtain 44 at a location above or at the cooling air return grille 34.
The anti-condensate air flow 46 thus forms a second curtain of cooling air, however, its primary purpose is to avoid the formation of condensate on the transparent sliding door 30 caused by warm ambient air entering the refrigerated sales space 12 from outside the refrigerated sales cabinet 2.
Fig. 2 shows an enlarged detail of the refrigerated sales cabinet 2 of fig. 1, i.e. the cabinet front top portion of the refrigerated sales cabinet 2, comprising the cooling air supply grille 24, the front end element 20, the baffle 26, the upper slide rail 28 and the upper end of the transparent sliding door 30.
As indicated by arrows 48, warm ambient air enters through a gap 50 (see two lower arrows) between two laterally adjacent transparent sliding doors and through a gap between the upper end of the transparent sliding door 30 and the horizontal upper slide rail 28.
The anti-condensation airflow 46 entrains such warm ambient air therein to merge with the anti-condensation airflow 46, thereby reliably avoiding the formation of condensation at the inner surface of the transparent sliding door 30.
While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
List of reference numerals
2 refrigerated sales cabinet
4 cabinet body
6 cabinet top part
8 rear wall
10 bottom part of cabinet
12 refrigerated sales space
14 roof panel
16 rear panel
18 bottom panel
20 front end element
22 anti-condensate airflow channel
24 cooling air supply grid
26 baffle
28 upper slide rail
30 sliding door
32 lower slide rail
34 cooling air return grid
36 upper air duct
38 vertical air duct
40 lower air duct
41 Lamp Unit
42 cooling air supply air stream
44 cooling air curtain
46 anti-condensate gas flow
48 warm ambient air
50 gap
Claims (17)
1. A refrigerated sales cabinet (2) comprising:
a cabinet body (4) comprising a cabinet top portion (6); and
a refrigerated sales space (12) for storing goods to be displayed therein;
a roof panel (14) bounding a top side of the refrigerated sales space (12);
at least one transparent door (30) arranged in front of the refrigerated sales space (12);
wherein an upper air duct (36) is formed between the cabinet top portion (6) and the ceiling panel (14), the upper air duct (36) extending from a rear portion to a front end element (20) of the upper air duct (36) and to an upper cooling air supply grid (24);
the upper air duct (36) providing a cooling air supply flow (42) forming a cooling air curtain (44) extending from the upper cooling air supply grid (24) to a cabinet bottom front portion of the refrigerated sales cabinet (2);
wherein at least one anti-condensate airflow channel (22) extends through the front element (20) of the upper air duct (36) or between an upper panel of the cabinet top portion (6) and the front element (20) of the upper air duct (36) such that an anti-condensate airflow (46) is divided from the cooling air supply airflow (42), flows through the anti-condensate airflow channel (22) and impinges on a baffle (26) of the cabinet top portion (6) of the cabinet (4); and is
Wherein the baffle (26) has a curved or inclined underside such that the condensate-proof airflow (46) is directed to an upper portion of the inner surface of the at least one transparent door (30).
2. Refrigerated sales cabinet (2) of claim 1,
wherein the at least one transparent door (30) is formed as a sliding door sliding along an upper horizontal sliding rail and a lower horizontal sliding rail; or
Wherein the at least one transparent door is formed as a pivoting door arranged within a door frame.
3. Refrigerated sales cabinet (2) of claim 1 or 2,
wherein the baffle (26) directs the condensate-proof airflow (46) such that it flows down the inner surface of the at least one transparent door (30) and entrains warm ambient air which enters the refrigerated sales space (12) through a gap between laterally adjacent transparent doors (30) and/or through a gap (50) between the door frame and the at least one transparent door formed as a pivoting door and/or through a gap (50) between an upper sliding rail, preferably a horizontal upper sliding rail, and an upper end of the at least one transparent door (30) formed as a sliding door.
4. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein the bottom side of the baffle (26) has a rear portion disposed above a level of the condensate prevention flow channel (22) and a front portion disposed below the level of the condensate prevention flow channel (22) and includes an angle of 30 to 80 degrees with respect to a horizontal plane; and/or
Wherein a forward end portion of the baffle (26) terminates at a location directly adjacent the upper end of the at least one transparent door (30); and/or
Wherein the bottom side of the baffle (26) comprises a smoothly curved transition between its substantially horizontal rear end portion and its front end portion.
5. Refrigerated sales cabinet (2) of any of claims 2 to 4,
wherein the upper horizontal slide (28) is mounted to the baffle (26).
6. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein the anti-condensate air flow (46) forms a front cooling air curtain (44) and the cooling air supply air flow (42) forms a rear cooling air curtain.
7. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein at least one of the front element (20) and the baffle (26) of the upper duct (36) is integrally formed with the cabinet top portion (6).
8. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein the front end element (20) of the upper air duct (36) is formed as one or more separate elements mounted to the cabinet top section (6), in particular as one horizontally extending beam mounted to the cabinet top section (6); and/or
Wherein the baffle (26) is arranged as one or more separate elements mounted to the cabinet top section (6), in particular as one horizontally extending beam mounted to the cabinet top section (6).
9. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein the at least one condensate-preventing air flow channel (22) is dimensioned such that only 2% to 10% of the mass flow of the cooling air supply air flow (42) is branched off from the cooling air supply air flow (42) flowing through the cooling air supply grid (24).
10. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein one anti-condensate airflow channel (22) is provided, said one anti-condensate airflow channel extending substantially across the width of the refrigerated sales cabinet (2), said width corresponding to the width occupied by the at least one transparent door (30); and/or
Wherein the height of the anti-condensate gas flow channel (22) is in the range of 1mm to 5 mm.
11. Refrigerated sales cabinet (2) of any of claims 1 to 9,
wherein a plurality of anti-condensate airflow channels (22) are provided across the width of the refrigerated sales cabinet (2) at a location above the at least one transparent door (30); and/or
Wherein the width per meter is set5 to 20 anti-condensate flow channels (22), and each such anti-condensate flow channel (22) has 2mm2To 20mm2Cross-section of (a).
12. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein the upper cooling air supply grid (24) has its rear end mounted in an airtight manner to the ceiling panel (14) of the refrigerated sales space (12); and/or
Wherein the upper cooling air supply grid (24) has its front end mounted in an airtight manner to the front end element (20) of the upper air duct (36).
13. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein the front end element (20) of the upper air duct (36) comprises a stepped cross-section;
wherein the front element (20) of the upper air duct (36) comprises a stepped rear side and/or a flat front side on which the upper cooling air supply grid (24) is mounted; and/or
Wherein the stepped rear side comprises at least one inclined surface for directing a substantially horizontal cooling air supply air flow (42) downwards to leave the upper cooling air supply grid (24).
14. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein the front of the cabinet top part (6) is retracted relative to the cabinet bottom front part of the cabinet body (4), or
Wherein the front of the cabinet top portion and the cabinet bottom front portion lie in a vertical plane.
15. Refrigerated sales cabinet (2) of any of the preceding claims,
wherein the cabinet top portion (6) extends substantially horizontally from an upper end of a substantially upright rear wall (8) of the cabinet body (4) to the front; and/or
Wherein an upright air duct (38) connected to the upper air duct (36) is formed between a rear wall of the cabinet (4) and a rear panel (16) limiting the back of the refrigerated sales space (12);
wherein the refrigerated sales space (12) is limited on the underside by a bottom panel (18);
wherein a lower air duct (40) connected to the upright air duct (38) is formed between the bottom panel (18) and a cabinet bottom portion of the cabinet (4); and/or
Wherein the lower duct (40) extends from a return air grille (34) arranged at or below a cabinet bottom front portion of the cabinet (4) to a rear portion of the lower duct.
16. Refrigerated sales cabinet (2) of claim 15,
wherein the front and rear cooling air curtains merge at a position above or at the return air grille (34).
17. Refrigerated sales cabinet (2) of claim 15 or 16,
wherein at least one element of a vapor compression cycle, including an expansion device and an evaporator, is provided in one or more of the lower air duct (40), the upright air duct (38), and the upper air duct (36).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2018/052640 WO2019149366A1 (en) | 2018-02-02 | 2018-02-02 | Refrigerated sales cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111669997A true CN111669997A (en) | 2020-09-15 |
| CN111669997B CN111669997B (en) | 2022-03-04 |
Family
ID=61157216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880088343.4A Active CN111669997B (en) | 2018-02-02 | 2018-02-02 | Refrigerated sales cabinet |
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| Country | Link |
|---|---|
| EP (1) | EP3745926B1 (en) |
| CN (1) | CN111669997B (en) |
| WO (1) | WO2019149366A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484996A (en) * | 2020-11-12 | 2022-05-13 | 内蒙古蒙牛乳业（集团）股份有限公司 | Automatic quick cooling system, cold bin and automatic quick cooling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484996A (en) * | 2020-11-12 | 2022-05-13 | 内蒙古蒙牛乳业（集团）股份有限公司 | Automatic quick cooling system, cold bin and automatic quick cooling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111669997B (en) | 2022-03-04 |
| WO2019149366A1 (en) | 2019-08-08 |
| EP3745926B1 (en) | 2022-10-12 |
| EP3745926A1 (en) | 2020-12-09 |
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