EP0654642A1 - Panneau isolant pour un dispositif de refroidissement - Google Patents

Panneau isolant pour un dispositif de refroidissement Download PDF

Info

Publication number: EP0654642A1
Authority: EP; European Patent Office
Prior art keywords: layer; insulating plate; reflector; plate according; cover
Prior art date: 1993-11-18
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

EP94118017A

Other languages

German (de)

English (en)

Other versions

EP0654642B1 (fr

Inventor

Albert Weiss

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

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.)

1993-11-18

Filing date

1994-11-15

Publication date

1995-05-24

1994-11-15 Application filed by Individual filed Critical Individual

1995-05-24 Publication of EP0654642A1 publication Critical patent/EP0654642A1/fr

1999-01-13 Application granted granted Critical

1999-01-13 Publication of EP0654642B1 publication Critical patent/EP0654642B1/fr

2014-11-15 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- F25D23/06—Walls
- 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
- A47F3/0469—Details, e.g. night covers

Definitions

the invention relates to an insulating plate for covering open cooling devices.
open freezers are used in supermarkets in the sales rooms, in which a lot of cooling energy has to be applied by the room temperature in order to be able to maintain the required low temperature in the open freezer.
roller blinds made of aluminum foil or plates are used for this. These panels are made of plastic with polyurethane foam. The two outer sides are coated with a smooth aluminum sheet to prevent heat radiation. A support device is required for the roller blinds to ensure that they rest on the edges of the chest without sagging.
the disadvantage of these cover plates is that they can be damaged relatively easily. Particularly on the smooth aluminum surface there are impressions, cracks or similar. easily visible, so that the appearance quickly suffers significantly.
thermal insulation with changeable volume is preferably known for containers with a honeycomb layer between an outer and an inner shell. Since the honeycomb layer should be elastic to adapt to different spatial conditions, the air chambers formed by the honeycombs are open at their ends. When compressed, the air falls away completely as insulation. As a result, the insulation ability is only limited to the material. In addition, this insulation, intended as a lining, requires a supporting frame to stabilize it. This known device is not suitable as an insulating plate for cooling devices.
a sound-absorbing and heat-sealing hollow building board which has a corrugated intermediate layer made of soft Schrenz or soft straw paper, which is formed by corrugated cardboard strips.
the open corrugated tubes are covered with cardboard.
the corrugated tubes Apart from the inadequate stiffness of this plate construction, which is different in the transverse and longitudinal directions, the corrugated tubes only create very small air spaces with high use of materials. The manufacturing effort is high. The thermal insulation capacity of this known plate construction is not satisfactory.
the object of the present invention is to provide a well-insulating and stable insulating plate which, moreover, does not involve any disposal problems and does not pose any danger to the food covered even if it is destroyed. This object is achieved by the features of patent claim 1.
the insulating plate consists of a honeycomb layer 1 which has hexagonal honeycombs 11 made of cardboard.
This honeycomb layer can be produced in strips by the meter and delivered in rolls.
This honeycomb layer 1 is glued to its top and bottom sides with a cover layer 2, so that a large number of closed cavities are created.
cover layers 2 also consist of cardboard material. However, hard cardboard is preferably used for this in order to obtain a stable surface and stiffening of the insulating plate.
a reflector layer 3 is applied to the cover layer 2 in order to keep out heat radiation. At the same time, this reflector layer 3 also serves to make the cover layer 2 made of cardboard material stable against moisture, for example condensation water.
This reflector layer 3 expediently consists of aluminum foil and is applied with a PU adhesive (polyurethane-based adhesive). It is important that a permanently elastic adhesive is used so that tearing or wrinkling of the film is avoided. This PU adhesive fulfills these properties quite well.
the application of the adhesive can a) by spraying or knife application or better b) by applying an adhesive film, on which the aluminum foil is then placed and glued under the action of heat.
a new type of reflector layer 3 which does not have these disadvantages, consists of two aluminum foils 31 and 32, between which a glass grid 4 is placed, so that a reflector layer 3, which is corrugated with the glass grid 4 and is thus structured, is formed, which is then applied to the hard cardboard, as already described above.
This reflector layer can be applied in various ways. Either the glass grid is first placed between the two aluminum foils 31 and 32 and then this finished reflector layer 3 on the cover layer 2 raised.
the structural grid 4 can also be applied directly to the cover layer 2.
the prefabricated reflector layer 3 then consists only of the structure grating 4, which is drawn onto a reflector film 31.
the cover layer 2 and the reflector layer 3 are provided with an extension 21 or 33, which are pulled down over the open side at the edges of the plate.
the cover layer 2 or only the reflector layer 3 it is sufficient to use the cover layer 2 or only the reflector layer 3 to cover the open end faces. If both the cover layer 2 and the reflector layer 3 are pulled down over the open end faces, an additional bordering of the insulating plate is unnecessary.
the insulation panels produced in this way not only have a good insulation effect, but also very good mechanical strength properties.
the insulation is even better than that of the well-known foamed plastic sheets. It shows that air is a very good temperature insulator. Instead of the hexagonal shape of the honeycombs, they can also be square or better square.
large-volume chambers are created with little use of material for the common partition walls of the air chambers. There are only minor thermal bridges. It is important that the cavities are as large as possible with a relatively small amount of material.
the central symmetrical shape of the air chambers also results in uniform rigidity in the transverse and longitudinal directions. However, it is also essential to coat with a reflector layer 3, since this increases the insulation considerably, obviously through the reflection of heat radiation which is produced by lighting fixtures or otherwise.
a further advantage for recycling is achieved in that the aluminum foil is attached with an adhesive which enables the aluminum foil to be peeled off and thus the cardboard material to be separated from the aluminum. A separation between the cardboard material and the aluminum foil is thus possible in a simple manner.

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)
Laminated Bodies (AREA)
Building Environments (AREA)

EP94118017A 1993-11-18 1994-11-15 Panneau isolant pour un dispositif de refroidissement Expired - Lifetime EP0654642B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4339414A DE4339414A1 (de)	1993-11-18	1993-11-18	Isolierplatte für Kühleinrichtungen
DE4339414		1993-11-18

Publications (2)

Publication Number	Publication Date
EP0654642A1 true EP0654642A1 (fr)	1995-05-24
EP0654642B1 EP0654642B1 (fr)	1999-01-13

Family

ID=6502915

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP94118017A Expired - Lifetime EP0654642B1 (fr)	1993-11-18	1994-11-15	Panneau isolant pour un dispositif de refroidissement

Country Status (2)

Country	Link
EP (1)	EP0654642B1 (fr)
DE (2)	DE4339414A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2755159A1 (fr) *	1996-10-28	1998-04-30	Panhelleux Gerard Marcel Patri	Panneau isolant autoportant
EP1138229A1 (fr) *	2000-03-21	2001-10-04	Linde Aktiengesellschaft	Rideau pour meuble de présentation réfrigéré
EP1228725A2 (fr) *	2001-02-02	2002-08-07	Linde AG	Corps isolant pour présentoir
WO2003000067A1 (fr) *	2001-06-25	2003-01-03	Cfs Weert B.V.	Appareil de refroidissement pour sucettes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE509490C2 (sv) *	1996-05-30	1999-02-01	Trygve B Marstrand	Upprullbart skydd för frysdiskar och kylhyllor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE670090C (de) *	1933-10-29	1939-01-11	Cartonnagenindustrie Ag F	Schalldaemmende und waermedichte Hohlbauplatte mit einer zwischen Aussendecklagen angeordneten Wellpapp-Zwischenschicht
EP0319937A2 (fr) *	1987-12-10	1989-06-14	Linde Aktiengesellschaft	Réfrigérateur commercial

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1022425B (de) *	1953-12-04	1958-01-09	Clemens Fa Ludwig	Gegen Waerme und/oder Kaelte schuetzende Isolierplatte
FR2335808A1 (fr) *	1975-12-19	1977-07-15	Neuhaus Bonnet	Meuble de conservation et d'exposition de produits surgeles, de fonctionnement economique
DE4017852C2 (de) *	1990-06-02	1993-10-21	Eurocopter Deutschland	Flächiger Gegenstand mit Wabenstruktur und Verfahren zu dessen Herstellung

1993
- 1993-11-18 DE DE4339414A patent/DE4339414A1/de not_active Withdrawn
1994
- 1994-11-15 EP EP94118017A patent/EP0654642B1/fr not_active Expired - Lifetime
- 1994-11-15 DE DE59407642T patent/DE59407642D1/de not_active Expired - Fee Related

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE670090C (de) *	1933-10-29	1939-01-11	Cartonnagenindustrie Ag F	Schalldaemmende und waermedichte Hohlbauplatte mit einer zwischen Aussendecklagen angeordneten Wellpapp-Zwischenschicht
EP0319937A2 (fr) *	1987-12-10	1989-06-14	Linde Aktiengesellschaft	Réfrigérateur commercial

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2755159A1 (fr) *	1996-10-28	1998-04-30	Panhelleux Gerard Marcel Patri	Panneau isolant autoportant
WO1998019024A1 (fr) *	1996-10-28	1998-05-07	Panhelleux Gerard	Panneau isolant autoportant
EP1138229A1 (fr) *	2000-03-21	2001-10-04	Linde Aktiengesellschaft	Rideau pour meuble de présentation réfrigéré
DE10013837B4 (de) *	2000-03-21	2008-07-10	Linde Kältetechnik GmbH & Co. KG	Zumindest teilweise gekühltes Warenpräsentationsmöbel mit wenigstens einer Abdeckung
EP1228725A2 (fr) *	2001-02-02	2002-08-07	Linde AG	Corps isolant pour présentoir
EP1228725A3 (fr) *	2001-02-02	2004-09-08	Linde Kältetechnik GmbH & Co.KG	Corps isolant pour présentoir
WO2003000067A1 (fr) *	2001-06-25	2003-01-03	Cfs Weert B.V.	Appareil de refroidissement pour sucettes
NL1018380C2 (nl) *	2001-06-25	2003-01-07	Cfs Weert Bv	Koelmachine voor lolly's.

Also Published As

Publication number	Publication date
DE4339414A1 (de)	1995-05-24
EP0654642B1 (fr)	1999-01-13
DE59407642D1 (de)	1999-02-25

Legal Events

Date	Code	Title	Description
1995-04-07	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1995-05-24	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE DE FR IT LU NL
1995-08-30	17P	Request for examination filed	Effective date: 19950706
1996-08-28	17Q	First examination report despatched	Effective date: 19960712
1998-03-12	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-07-13	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-07-13	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-10-22	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-11-27	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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1999-03-30	ITF	It: translation for a ep patent filed	Owner name: ING. ZINI MARANESI & C. S.R.L.
1999-04-23	ET	Fr: translation filed
1999-11-19	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1999-11-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2000-01-05	26N	No opposition filed
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