EP2843332A2 - Meuble frigorifique - Google Patents

Meuble frigorifique Download PDF

Info

Publication number
EP2843332A2
EP2843332A2 EP14182317.9A EP14182317A EP2843332A2 EP 2843332 A2 EP2843332 A2 EP 2843332A2 EP 14182317 A EP14182317 A EP 14182317A EP 2843332 A2 EP2843332 A2 EP 2843332A2
Authority
EP
European Patent Office
Prior art keywords
channel
air
cooling
outlet
refrigerated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14182317.9A
Other languages
German (de)
English (en)
Other versions
EP2843332A3 (fr
EP2843332B1 (fr
Inventor
Steffen Schwarz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AHT Cooling Systems GmbH
Original Assignee
bonotos Kaltetechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by bonotos Kaltetechnik GmbH filed Critical bonotos Kaltetechnik GmbH
Priority to PL14182317T priority Critical patent/PL2843332T3/pl
Priority to SI201431048T priority patent/SI2843332T1/sl
Publication of EP2843332A2 publication Critical patent/EP2843332A2/fr
Publication of EP2843332A3 publication Critical patent/EP2843332A3/fr
Application granted granted Critical
Publication of EP2843332B1 publication Critical patent/EP2843332B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/023—Air curtain closures
    • 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
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0443—Cases or cabinets of the open type with forced air circulation
    • A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains

Definitions

  • the invention relates to a refrigerated cabinet, in particular refrigerated shelves, freezer, cooling island or refrigerated display, for storage and / or presentation of refrigerated goods, with a cooling space for the refrigerated goods and a channel assigned to the cooling chamber for supplying air, wherein two air flows at different flow rates from an outlet can flow out of the channel, which form a double protective air curtain in front of an access to the refrigerator.
  • a refrigerator with a cooling space for the refrigerated goods and a channel associated with the cooling chamber for the supply of air is for example from the DE 34 14 033 A1 known.
  • the refrigeration unit shown here is a refrigerated shelf in which cooling air in a channel on the rear wall of the cabinet is directed upwardly into a front portion of the refrigerator shelf and is discharged from an outlet in front of the refrigerator compartment to form a protective air curtain.
  • the duct for supplying air is formed with two separate air ducts, each supplying air flows at different flow velocities.
  • the air streams emerging from the duct tend to flow into the cold room rather than forming a protective air curtain in front of the cold room.
  • This tendency is counteracted by the creation of additional support air curtains formed by airflows flowing out of the rear wall of the cold room into the cold room, which are intended to prevent the airstreams forming the protective air curtain from entering the cold room.
  • Care is taken to ensure that these supporting air veils are generated from as laminar flows as possible in order to keep the air flows of the protective air curtain as safe as possible out of the cold room.
  • the disadvantage of these laminar flows is that their cooling effect, which is also desired and likewise desired, is not very good, since these laminar streams of support air show only a short interaction time with the material to be cooled.
  • the supporting air curtain flows past the refrigerated goods too quickly and in a straight line, in order to exert an effective cooling effect on the refrigerated goods.
  • the present invention is therefore the object of a cooling cabinet of the type mentioned in such a way and further, that an effective and energy-saving cooling of the cooling material is made possible with structurally simple means.
  • the above object is achieved by a refrigerated cabinet with the features of claim 1. Thereafter, the cooling cabinet is configured and further developed such that the channel has such an effect on the supplied air element, that a distribution of the supplied air is realized in the two air flows with different flow velocities through the element.
  • the above object is achieved in a surprisingly simple manner by skillfully producing and guiding two cooling air flows at different flow velocities, which form the protective air curtain.
  • the channel on such an applied to the supplied cooling air element that on the one hand, a division of the supplied air into two air flows and beyond also the different flow velocities of the two air flows are generated. It is in a structurally simple way on the one hand no longer necessary to realize a channel with two separate air ducts to perform the two required for a double protective air curtain air flows. It suffices in a structurally simple way a channel with a single air duct and a placed at a suitable location element.
  • This design of the channel with only one air duct also has advantages in terms of hygienic requirements, since an easier cleaning of the channel is made possible with only one air duct. Furthermore, it has been found that this design of the channel with a division into the two air flows only at the element leads to a safer and quieter air flow. Finally, it has been found that the inventive design of the channel with the element acting on the air supplied element leads to a laminar over a relatively long distance flow of the protective air curtain, so that in previous cooling furniture required supporting air curtain to a much lesser extent or almost no longer required to maintain the protective air curtain as required. In other words, supporting air curtains no longer have to be conducted as tightly laminar as is required with conventional refrigerated cabinets. This allows the use of a more turbulent supporting air flow than before, so that an improved cooling effect can be exerted on the refrigerated goods. This results in significant energy savings in the required refrigeration.
  • the element in be arranged in the channel or in the region of the outlet of the channel.
  • the arrangement in the channel provides an externally protected and effective arrangement of the element. Depending on requirements, this arrangement may be made in the area of the outlet. It is also conceivable to position the element substantially in front of the outlet of the channel in order to ensure good accessibility to the element with regard to cleaning and / or maintenance.
  • the element can be designed like a wing using the Bernoulli effect.
  • a wing-like design of the element ensures, on the one hand, a reliable division of the air flowing past the element into two air flows and, on the other hand, a reliable generation of different flow velocities of the air flows on the two sides of the wing-like element. Due to the air pressure differences generated by the wing-like element on the different sides of the wing-like element resulting from the individual design of the element conditional differences in the flow velocities of the two air currents. Depending on the design of the wing-like element thus different flow velocities of the two air currents - depending on the desired application - can be realized.
  • the element can have a plurality of sections which can be set and / or pivoted relative to one another.
  • the element can be advantageously in Scope of adjustability of sections - individually - designed or shaped. An adaptation to a wide variety of applications is possible.
  • a guide device for parallel guidance of the supplied air can be arranged in the channel in the direction of flow in front of the element.
  • a guide device can be arranged in the channel or at the outlet or after the outlet of the channel, for the parallel guidance of the two air flows, viewed downstream of the element.
  • At least one of the guide devices arranged in front of and / or behind the element can have a plurality of planar guide elements arranged parallel to one another.
  • planar guide elements offer a particularly simple and secure parallel guidance of the air flowing past them.
  • At least one of the two guide devices arranged in front of and / or behind the element can be constructed from a plurality of individual sections.
  • a modular structure of the guide devices can be realized to accommodate a wide variety of requirements and application situations.
  • the channel may have at least one further outlet opening into the cooling chamber for the supplied air, wherein the at least one further outlet is designed such that air flowing into the cooling chamber is essentially turbulent and preferably forms a supporting air curtain for the protective air curtain ,
  • the at least one further outlet is designed such that air flowing into the cooling chamber is essentially turbulent and preferably forms a supporting air curtain for the protective air curtain .
  • the refrigerator according to the invention may be both a refrigerated cabinet with its own condensing unit - a so-called plug-in refrigerated cabinets - as well as a refrigerator with a connection to a central refrigeration unit with, for example, a composite pipe network.
  • the channel 2 according to the enlarged view of Fig. 2 equipped with an element 8 acting on the supplied air in such a way that a distribution of the supplied air into the two air flows is realized at different flow speeds by the element 8 itself.
  • the supplied through the channel 2 air is divided only at the element 8 in the two air flows, which have 8 different flow velocities due to the special design of the element.
  • the element 8 has a substantially convexly curved upper side and a substantially concavely curved lower side. The flow rate is higher at the top than at the bottom.
  • the element 8 extends transversely to the channel 2 along its entire width.
  • the channel 2 is formed with a substantially rectangular cross section, so that a protective air curtain along the entire width of the channel 2 can be generated.
  • a guide means 10 for parallel guidance of the supplied air is arranged.
  • the parallel guidance of the supplied air makes it possible to produce a laminar flow from the two air flows which reaches far beyond the outlet 3.
  • the guide device 10 has three individual sections 10 in the embodiment shown here.
  • a guide device 11 is arranged in the channel 2 in the region of the outlet 3, as seen in the flow direction after the element 8, for the parallel guidance of the two air flows generated. As a result, a further extension of the laminar flowing region is achieved after the outlet 3.
  • the guide devices 10 and 11 have a plurality of planar guide elements 12 arranged parallel to one another. As a result, a particularly secure guidance of the air is achieved.
  • the Fig. 3 to 5 each show in a schematic and enlarged side view a channel 2 of a second, third and fourth embodiment of a cooling cabinet according to the invention with an arranged in the channel 2 element 8.
  • the element 8 is fixedly disposed in the channel 2 and not pivotable about an axis
  • they differ in the Fig. 3 to 5 shown embodiments of the in Fig. 2 shown embodiment by the different configuration of the guide device 10, which leads the supplied air in the flow direction in front of the element 8 in parallel.
  • the second embodiment according to Fig. 3 a trained from a single section 10 guide device 10.
  • the guide means 10 according to the third and fourth embodiments in the Fig. 4 or 5 have three or five individual sections 10. When selecting the number of individual sections 10 is to be based on the particular application. Basically, more individual sections 10 mean a more secure parallel guidance of the supplied air, wherein the flow resistance increases due to the greater number of individual sections 10 in the channel 2.
  • Fig. 10 shows a schematic side view of a conventional refrigerated counter, which could have a channel 2 with an inventive element 8, in order to achieve an effective and energy-efficient cooling of the refrigerated goods with structurally simple means.
  • FIG. 11 in a schematic side view of a conventional refrigerator 11 in the form of a freezer.
  • an element 8 may be arranged in the channel 2.
  • FIG. 12 in a schematic side view of a conventional refrigerated cabinets in the form of a combination set of refrigerated shelves and freezer. Again, an element 8 may be arranged in the channel 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
EP14182317.9A 2013-08-27 2014-08-26 Meuble frigorifique Not-in-force EP2843332B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL14182317T PL2843332T3 (pl) 2013-08-27 2014-08-26 Mebel chłodniczy
SI201431048T SI2843332T1 (sl) 2013-08-27 2014-08-26 Hladilna naprava

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013217058.0A DE102013217058B4 (de) 2013-08-27 2013-08-27 Kühlmöbel

Publications (3)

Publication Number Publication Date
EP2843332A2 true EP2843332A2 (fr) 2015-03-04
EP2843332A3 EP2843332A3 (fr) 2015-04-01
EP2843332B1 EP2843332B1 (fr) 2018-11-28

Family

ID=51398542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14182317.9A Not-in-force EP2843332B1 (fr) 2013-08-27 2014-08-26 Meuble frigorifique

Country Status (9)

Country Link
EP (1) EP2843332B1 (fr)
DE (1) DE102013217058B4 (fr)
DK (1) DK2843332T3 (fr)
ES (1) ES2705553T3 (fr)
HU (1) HUE043753T2 (fr)
PL (1) PL2843332T3 (fr)
PT (1) PT2843332T (fr)
SI (1) SI2843332T1 (fr)
TR (1) TR201900635T4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016066150A1 (fr) * 2014-10-28 2016-05-06 Bonotos Kaeltetechnik Gmbh Meuble réfrigéré

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414033A1 (de) 1984-04-13 1985-10-17 Linde Ag, 6200 Wiesbaden Kuehlregal

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA538201A (fr) * 1957-03-12 V. Swanson Sven Commande de courant d'air pour refrigerateurs
US2810267A (en) * 1956-04-16 1957-10-22 C V Hill & Company Inc Refrigerated display case
JPS5040131Y2 (fr) * 1971-12-28 1975-11-17
JPS5811243Y2 (ja) * 1975-04-24 1983-03-02 シャープ株式会社 レイトウレイゾウシヨ−ケ−ス
JPS5288760U (fr) * 1975-06-24 1977-07-02
JPS614207Y2 (fr) * 1977-11-11 1986-02-08
JPS54105180A (en) * 1978-02-03 1979-08-17 Sankyo Denki Co Ltd Method of making rectifier
JPS54140357U (fr) * 1978-03-23 1979-09-29
JPS57144861A (en) * 1981-03-04 1982-09-07 Sanyo Electric Co Air curtain formation apparatus
JPS6054072U (ja) * 1983-09-20 1985-04-16 富士電機株式会社 平型オ−プンショ−ケ−スの冷気吹出口
JPS62124477U (fr) * 1986-01-30 1987-08-07
JPH0686978B2 (ja) * 1990-03-22 1994-11-02 三洋電機株式会社 低温ショーケース
JPH0648296Y2 (ja) * 1990-08-02 1994-12-12 株式会社岡村製作所 エアカーテン式冷蔵ショーケース
JPH11183013A (ja) * 1997-12-19 1999-07-06 Fuji Electric Co Ltd 冷気循環式オープンショーケース
JP2000102458A (ja) * 1998-09-29 2000-04-11 Fuji Electric Co Ltd 冷気循環式オープンショーケース
KR200263534Y1 (ko) * 1998-10-30 2002-06-24 전주범 냉장고의에어커텐장치
JP2003106735A (ja) * 2001-09-27 2003-04-09 Sanyo Electric Co Ltd 冷却貯蔵庫
US7497770B2 (en) * 2005-02-16 2009-03-03 Hussmann Corporation Air louver for a refrigerated display case

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414033A1 (de) 1984-04-13 1985-10-17 Linde Ag, 6200 Wiesbaden Kuehlregal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016066150A1 (fr) * 2014-10-28 2016-05-06 Bonotos Kaeltetechnik Gmbh Meuble réfrigéré

Also Published As

Publication number Publication date
TR201900635T4 (tr) 2019-02-21
SI2843332T1 (sl) 2019-04-30
EP2843332A3 (fr) 2015-04-01
DE102013217058B4 (de) 2017-03-09
PL2843332T3 (pl) 2019-05-31
EP2843332B1 (fr) 2018-11-28
DE102013217058A1 (de) 2015-03-05
PT2843332T (pt) 2019-01-28
HUE043753T2 (hu) 2019-09-30
DK2843332T3 (en) 2019-02-04
ES2705553T3 (es) 2019-03-25

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