EP0632986A1 - Dispositif de refroidissement pour le stockage de pâtisseries - Google Patents

Dispositif de refroidissement pour le stockage de pâtisseries Download PDF

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Publication number
EP0632986A1
EP0632986A1 EP94108589A EP94108589A EP0632986A1 EP 0632986 A1 EP0632986 A1 EP 0632986A1 EP 94108589 A EP94108589 A EP 94108589A EP 94108589 A EP94108589 A EP 94108589A EP 0632986 A1 EP0632986 A1 EP 0632986A1
Authority
EP
European Patent Office
Prior art keywords
air
container
cooling device
supply
cooling
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
EP94108589A
Other languages
German (de)
English (en)
Other versions
EP0632986B1 (fr
Inventor
Edwin Thinius
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0632986A1 publication Critical patent/EP0632986A1/fr
Application granted granted Critical
Publication of EP0632986B1 publication Critical patent/EP0632986B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • 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
    • F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices

Definitions

  • the invention relates to an open cooling device for the storage of pastries, in particular the storage of chocolate-coated dry biscuits, in which a cooling unit is arranged in the area of a receptacle for the pastries, the heat exchanger of which is acted upon by an air flow generated by fans, the air supply in the lower region of the container and the air discharge in its upper region takes place while the side walls of the container are hermetically sealed.
  • a disadvantage of this known arrangement is that such a cooling device for pastries, in particular for dry biscuits coated with chocolate, is only suitable to a limited extent is because the air cooled down by means of the heat exchanger of the cooling unit on the one hand extracts moisture from the pastry, but on the other hand leaves too much residual heat that cannot be dissipated, so that the chocolate coating of the pastry can reach a temperature range of around 30 to 32 ° C. In this area, however, the chocolate begins to melt. However, this leads to the melting or melting chocolate coating getting a gray haze, which makes it unsightly and also affects its taste.
  • the invention is therefore based on the object to design a cooling device of the type mentioned so that the adverse influence on the pastry is avoided and that it is ensured that chocolate-coated dry biscuits can be stored over a long period of time (several days).
  • the cooling air is generated by means of an air conditioner, which is arranged in a larger spatial distance from the container of the cooling device, and which is connected via an air supply line to the container for the pastries, the from Air conditioner generated air is subject to drying by the air conditioner.
  • the container for the pastry is supplied with comparatively dry air, which is also cooled, so that temperatures in the container which are around 15 to 20 ° C., in a range in which a Chocolate coating is not yet melting.
  • the supply of relatively dry air also ensures that despite the cooling and drying of the pastry body - i.e. the carrier of the coating - neither its consistency nor its taste structure is impaired, because moisture is hardly removed from the pastry despite the comparatively high temperature of the cooling air .
  • the dried cooling air coming from the air conditioning unit has an initial temperature of approximately 15 to 18 ° C. It is particularly expedient if the cooling air is passed through at least one supply air pipe, which makes it possible for the different prevailing at the beginning and at the end of the supply air pipe Pressures are taken into account and balanced.
  • the supply air pipes expediently extend approximately over the entire length (or width) of the container, with openings being provided for the purpose of uniform air pressure distribution over the length of the supply air pipe or pipes, the diameter of which from the start of the supply air pipe or pipes into the container up to increase at the end of its entry.
  • the supply air pipe or the supply air pipes is at least above the biscuits in the container.
  • the space in which the air conditioning unit is located is at a spatial distance from the container and is also hermetically sealed from the inside air in the container in order to rule out any influence of the ambient air (room air) on the air conditioning unit.
  • the air conditioner is provided with devices for killing germs, for example by ionization or by UV rays.
  • a particularly advantageous arrangement is that the supply air pipe is guided through it in a central region of the container, rotatable nozzles being used instead of the holes mentioned above in the supply air pipe, so that there is the possibility of rotating these nozzles relative to the supply air pipe that the air radiation points downwards or obliquely downwards. If this is the case, a carrier can be arranged directly under this air radiation, on which the cooling biscuits are supported.
  • the carrier can run inclined towards the viewer, because in this way the air flowing in above the inclined carrier flows down along the carrier and thus has part in the cooling.
  • a receptacle 1 which has storage plates 2, on which the biscuits 3 to be cooled are supported and can be removed upwards.
  • the pastry pieces 3 are cooled via a supply air pipe 5 provided with bores or openings 4, which is connected to an air conditioning unit 7 via a connecting line 6, the air conditioning unit 7 being arranged in a different room than the container.
  • the air conditioner 7 is located on a lower floor. As a result, the ambient air of the cooling device 1 cannot affect the air conditioner.
  • the cooling air flows above the biscuits 3 into the container and, due to its lower temperature, moves in the direction of the Arrows 8 down. It then exits in the bottom area of the container 1.
  • the cooling air coming from the air conditioner 7 has a relatively high flow pressure, so that it can flow through the container from bottom to top according to arrow 9, in the direction of arrows 10 again to resign.
  • the side walls 11 of the container indicated in FIG. 2 are arranged such that they hermetically seal the container 1 in the side region.
  • FIG. 3 shows a perspective view of a variant of the embodiment according to FIG. 1.
  • an inclined carrier 12 which serves to store the chocolate-coated pastry pieces 13, the supply air line 5 above the carrier 12 (cf. FIG. 1 ) is arranged.
  • the edge of the carrier 12 connects sealingly to the respective side wall, not shown in FIG. 3.
  • the air of lower temperature supplied via the air conditioning unit 7 initially acts against the inclined carrier 12 from top to bottom, in order to then be discharged along the carrier in the direction of arrow 14 to the outside.
  • the bottom area of the container 1 is provided with a thicker thermal insulation layer 15.
  • other biscuits 16 can also be stored, which can then lie on a carrier 17 arranged above the supply air pipe 5, the carrier 17 also being cooled, but not as intensely as the one below of the supply air tube 5 lying carrier 12.
  • the carrier 17 can also sealingly connect with its edges to the side wall not shown in FIG. 3 (see FIG. 2).
  • the entire device can be provided in a manner known per se with a lighting device 18 which is arranged above the upper support 17 and enables the viewer to be able to look into the container 1 through the front wall 19 made of glass and thus to be able to select the biscuits .
  • Fig. 4 shows a schematic perspective view of an embodiment of the end 5a of the supply air pipe 5, wherein, as can be seen from Fig. 4, the openings 4 (see also Fig. 1) in the supply air pipe increase in diameter upstream or a decreasing diameter downstream have, so as to ensure that there is a uniform flow distribution below the supply air pipe 5 inside the container 1.
  • the direction of flow upstream is indicated by arrow 20. So there are first the smaller holes 4 with higher pressure and then with weakened ones falling pressure flows towards the larger holes 4.
  • Fig. 5 is the section V-V of FIG. 4 through the supply air pipe 5 and shows the preferred position of the openings 4 distributed over the circumference of the supply air pipe 5, which are arranged distributed over about 90 °.
  • the arrows that illustrate the outflow of the cooling air are designated by 21.
  • the end of the supply air pipe 5 is rotatably attached to the supply air line in the direction of the double arrow 22, so that the flow direction 21 can be changed so that an optimal cooling effect is produced.
  • FIG. 6 shows the arrangement according to FIG. 3 in connection with the air conditioning unit 7, the container 1 and the air conditioning unit 7 likewise being located on different floors and being separated from one another by a schematically indicated building ceiling 23.
  • the supply air from the air conditioner 7 takes place in the direction of the arrows 24, the supply air line being designated as 6 in FIG. 1.
  • the supply air pipe 5 is pivotally attached in the manner described via a rotary connection 25.
  • FIG. 8 shows an embodiment of a modified nozzle 27 which, as indicated by dashed lines, can be designed with a swivel mechanism. 9 that the nozzle 27 can have an annular slot 28 which further promotes even air distribution.

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)
  • Confectionery (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP94108589A 1993-07-07 1994-06-04 Dispositif de refroidissement pour le stockage de pâtisseries Expired - Lifetime EP0632986B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4322532 1993-07-07
DE4322532A DE4322532A1 (de) 1993-07-07 1993-07-07 Offene Kühlvorrichtung für die Lagerung von Gebäck

Publications (2)

Publication Number Publication Date
EP0632986A1 true EP0632986A1 (fr) 1995-01-11
EP0632986B1 EP0632986B1 (fr) 1998-11-04

Family

ID=6492120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94108589A Expired - Lifetime EP0632986B1 (fr) 1993-07-07 1994-06-04 Dispositif de refroidissement pour le stockage de pâtisseries

Country Status (3)

Country Link
EP (1) EP0632986B1 (fr)
AT (1) ATE172856T1 (fr)
DE (2) DE4322532A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040204A1 (de) * 2000-08-17 2002-02-28 Linde Ag Externe Kaltlufterzeugung in Großmärkten

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872320A (en) * 1987-12-11 1989-10-10 Sanyo Electric Co., Ltd. Refrigeration showcase
WO1990011009A1 (fr) * 1989-03-29 1990-10-04 Airchitect I Söderhamn Ab Unite de conditionnement d'air pour animaux de laboratoire
DE9202420U1 (fr) * 1992-02-25 1992-04-23 Fa. Awe Alterna, 8100 Garmisch-Partenkirchen, De

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855762A (en) * 1956-06-29 1958-10-14 Sulzer Ag Air-cooled system
DE2400900A1 (de) * 1974-01-09 1975-07-17 Ungermann Fa Erwin Kuehlvitrine, insbesondere fuer die aufbewahrung zur schaustellung von konditoreiware
DE3317372A1 (de) * 1983-05-13 1984-11-22 HS-Ingenieurplanung GmbH, 2800 Bremen Verfahren zum betreiben eines mit einer kuehleinrichtung ausgestatteten gebaeudes, insbesondere eines gewaechshauses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872320A (en) * 1987-12-11 1989-10-10 Sanyo Electric Co., Ltd. Refrigeration showcase
WO1990011009A1 (fr) * 1989-03-29 1990-10-04 Airchitect I Söderhamn Ab Unite de conditionnement d'air pour animaux de laboratoire
DE9202420U1 (fr) * 1992-02-25 1992-04-23 Fa. Awe Alterna, 8100 Garmisch-Partenkirchen, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040204A1 (de) * 2000-08-17 2002-02-28 Linde Ag Externe Kaltlufterzeugung in Großmärkten

Also Published As

Publication number Publication date
DE4322532A1 (de) 1995-01-12
EP0632986B1 (fr) 1998-11-04
DE59407207D1 (de) 1998-12-10
ATE172856T1 (de) 1998-11-15

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