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WO2008019805A2 - Dispositif de service - Google Patents

Dispositif de service Download PDF

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Publication number
WO2008019805A2
WO2008019805A2 PCT/EP2007/007099 EP2007007099W WO2008019805A2 WO 2008019805 A2 WO2008019805 A2 WO 2008019805A2 EP 2007007099 W EP2007007099 W EP 2007007099W WO 2008019805 A2 WO2008019805 A2 WO 2008019805A2
Authority
WO
WIPO (PCT)
Prior art keywords
serving device
heat exchanger
support plate
cover
support
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.)
Ceased
Application number
PCT/EP2007/007099
Other languages
German (de)
English (en)
Other versions
WO2008019805A3 (fr
Inventor
Oliver Gneuss
Hans G. Knop
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2008019805A2 publication Critical patent/WO2008019805A2/fr
Publication of WO2008019805A3 publication Critical patent/WO2008019805A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/26—Butter or cheese dishes or covers, with or without cooling or heating devices; Protective covers for food containers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/24—Warming devices
    • A47J36/2483—Warming devices with electrical heating means
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • F25B21/04—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect reversible
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • 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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/812—Trays

Definitions

  • the invention relates to a serving device for perishable foods.
  • the serving device By means of the serving device, the food can be displayed for the purpose of presentation for consumption or sale.
  • serving devices for the display of perishable foods such as cheese, sausage, fish, fresh fruit or vegetables
  • temperature-sensitive foods such as sausage, meat, fish or cheese goods during the display of a perishability-promoting warming are exposed is either made sure that the surrounding atmosphere is cooled, this is done for example by means of elaborate shading and / or air conditioning equipment, such as freezers, or the served serving devices are only briefly brought for purposes of presentation to display under room temperature conditions.
  • a heating and also coolable tray arrangement can be seen, the cooling and heating capacity of which is based on a Peltier module.
  • the respective tray to be tempered can be inserted into a lateral receiving frame, in which a corresponding Peltier element arrangement is accommodated. If it is appropriate to temper the tray accordingly, it requires an intimate contact of the tray with the lateral receiving frame.
  • the invention has for its object to provide a serving device, with which it is possible to store perishable food preferably over several hours to a desired temperature, the apparatus required and also cost-relevant effort should be kept as low as possible.
  • the solution according to serving should be as easy to use and versatile as a portable unit.
  • the solution of the problem underlying the invention is specified in claim 1.
  • An alternative solution proposal is described in claim 14.
  • the concept of the invention advantageously further features are the subject of the claims, which are all content of the description.
  • the solution according serving device for perishable food such as meat, sausage, fish and / or cheese goods and vegetables or fruits, has a support plate, which has at least one support surface for the food.
  • the support plate is a, at least one Peltier element having heating and / or cooling device in thermal contact or can be brought into thermal contact with this, wherein the at least one Peltier element with an electrical energy source is connectable.
  • at least one heat exchanger body is provided, which is in thermal contact with the heating and / or cooling device and which is thermally insulated from the support plate.
  • the at least one Peltier element is arranged on the side facing away from the support surface of the support plate and stands with this directly or indirectly in physical contact.
  • the at least one heat exchanger body, with which the at least one Peltier element is in thermal contact, is thermally insulated from the support plate such that the heat exchanger body provides a support region on which at least one thermal insulation layer is provided on which the support plate rests. Between the support plate and the support region of the heat exchanger body, the at least one Peltier element is ultimately provided.
  • the advantage of the serving device according to the invention can be seen in the fact that exclusively the so-called semiconductor-based Peltier effect is used for targeted cooling or for heating the platen on which the food can be placed, in which a controllable heat flow while avoiding any moving components, environmentally harmful gases and liquids can be initiated.
  • This is an arrangement of electrically interconnected, each opposite pole to each other doped semiconductor segments whose electrical Connecting bridges at the same time represent thermal contact surfaces, which are arranged on two opposite sides of the semiconductor segment arrangement. Depending on the flow strength and in particular the direction of flow, one of the two contact surfaces cools while the other heats up. The electric current thus pumps heat from one side to the other side of such a Peltier element and generates a temperature difference between the two contact surfaces.
  • the heating and / or cooling device provides one or preferably a plurality of Peltier elements, each of which is in thermal contact with the support plate with one of its contact surfaces.
  • Each of a Peltier element to the support plate lying opposite contact surfaces are connected to the heat exchanger body, wherein all Peltier elements are electrically interconnected such that they are rectified flowed through with electric current. If the current flow direction directed by the Peltier elements is such that their contact areas thermally contacted with the support plate cool, then heat is formally pumped from the support plate via the Peltier elements to the heat exchanger body. With the aid of a provided between the Peltier elements and the Peltier elements with power supply energy source switch unit, it is possible to reverse the direction of current flow and thus reverse the heat transfer, so that the support plate is heated and the heat exchanger body is cooled.
  • the serving device designed in accordance with the invention permits use at any location, in particular also in areas in which no power supply exists, such as in open terrain, for example. For example, for picnics. In order to optimize the cooling or heating effect of the Peltier elements on the desired temperature plate to be tempered, this is compared to the heat exchanger body completely thermally isolated store.
  • the heat exchanger body provides a support area before, on each of which separated by a thermally well insulating separating layer rests the support plate.
  • a thermal insulating layer selected plastics or the provision of a trapped by two plate bodies volume, which is preferably evacuated in order to avoid a heat dissipation between the support plate and the heat exchanger body as possible.
  • the heat exchanger body also serves as a base for the solution according trained serving device and provides in particular for the purpose of effective cooling effect of the support plate web-like heat radiation surfaces through which the heat exchanger body can transfer the heat emitted via the Peltier elements at this heat to the ambient air.
  • the heat output from the heat exchanger body to the ambient air can be increased in a preferred embodiment by a fan assembly is provided in the form of a fan that generates a directed onto the heat exchanger body air flow through which the heat can be discharged into the free atmosphere or ambient air ,
  • the support area of the heat exchanger body projects beyond the otherwise flat support plate peripherally at its peripheral edge web-like and forms a kind Abstützkragen on which a support plate peripherally completely surrounding domhaft formed cover is placed.
  • the dom-formed cover is preferably made of UV-light filtemdem plexiglass, to provide in this way, a light protection for the mostly light-sensitive food.
  • the abovementioned domically formed covering hood can additionally provide a surface cooling and / or surface heating unit in connection with the serving device described by means of which the volume enclosed by the covering hood can be heated or cooled in addition to the heating or cooling effect of the serving device.
  • a surface cooling and / or -2020 is located on the support surface of the platen facing side of the cover, this corresponds to the concave side of the cover, a surface cooling and / or -2020, as quasi described above in connection with the support plate heating and / or cooling device on the heating or Cooling effect of at least one Peltier iatas based.
  • the cover described below with reference to the figures can also be used alone, d. H. without the above-described, formed in accordance with the support plate by the domhaft trained cover is only as flush as possible placed on a flat surface, and, for example. Includes a plate with perishable food.
  • the integrated in the cover surface cooling and / or surface heating unit has a concave side attached to the cover surface element, the front surface of the surface of the support surface of the pad is oriented facing, to which the cover is placed.
  • the back of the Surface element is thermally contacted directly or indirectly with at least one Peltier element, which in turn is in thermal contact with a heat exchanger unit, which is thermally insulated from the surface element and the convex side of the cover, that is arranged on the outside.
  • the at least one Peltier element is located in the region of an opening within the cover, wherein the Peltier element is surrounded in the region of the opening of thermally insulating material, on the one hand supports the convex side to the cover heat exchanger unit and on the other hand arranged concave side of the cover surface element relative to this.
  • the convex side mounted on the cover heat exchanger unit provides to improve the heat exchange with the surrounding air before several stapeiförmig superposed cooling plates and also has to further improve the heat exchange with the ambient air via a fan unit, which is able to direct an air flow in the direction of the heat exchanger unit.
  • a corresponding energy source is provided on the cover as it were to perform the cover as completely autonomous to handle unit, thereby improving the ease of use and applicability of the cover in an advantageous manner.
  • powerful compact batteries offer, as it is possible to provide for energy supply in combination or in isolation of the intended battery unit an array of photovoltaic cells on or in the cover.
  • the solution trained trained serving device can be found everywhere where it matters, such as perishable food such as Cold cuts, cheeses, delicacies, salads, fish specialties, sushi, sauces and much more, well visible and easy to serve.
  • the plate offers, as mentioned above, also the possibility for heating or keeping warm dishes, pastries etc ..
  • Preferred areas of use are the household, restaurants, especially in the breakfast buffet area, food stalls, grocery stores, kiosks, bars, canteens etc ..
  • Fig. 2 cover for a serving device with heating or
  • FIG. 3 longitudinal sectional view of an alternative serving device with integrated vacuum unit.
  • Fig. 1 shows a serving device in longitudinal section and has a flat and horizontally mounted support plate 2, which provides a support surface on which perishable food can be placed.
  • the support plate 2 is spaced over a thermal insulating layer 4 on the support area of a heat exchanger body 5, which is preferably made in one piece and has a base 7, over which the entire serving device is mounted on a base 8.
  • the support plate 2 and the heat exchanger body 5 are made of a thermally highly conductive material, such as metal, in particular aluminum, and largely thermally decoupled from each other via the existing mostly plastic thermal insulation layer 4.
  • the gap between the support plate 2 and the support area of the heat exchanger body 5 may also be formed by an evacuated, gas-tight enclosed volume.
  • two Peltier elements 3 shown in longitudinal section are provided, which form a thermally well conductive connection between the support plate 2 and the heat exchanger body 5.
  • the Peltier elements 3 are connected to a power source, not further shown, and connected to one another in such a way that the upper sides of the Peltier elements facing the support plate 2 can be tempered in the same way. If, for example, the support plate 2 is to be effectively cooled, a directed heat flow takes place on the support plate 2 in the direction of the heat exchanger body 5, in each case at the regions of the Peltier elements 3, whereby the support plate 2 is cooled rapidly and effectively. With a suitable size choice of the support plate 2 and dimensioning of the Peltier elements 3 surface temperatures at the support plate 2 can be achieved near 0 0 C.
  • a fan assembly 6 is provided in the foot region of the heat exchanger body 5, through which the waste heat at the heat exchanger body 5 can be effectively transferred to the ambient air (see the arrows indicated and initiated by the fan assembly 6 airflow L). For example, exceeds the Temperature at the heat exchanger body 5, for example, 36 °, the fan 6 is activated, whereby the heat exchange between the heat exchanger body 5 and ambient air is accelerated.
  • the shape and geometry of the support plate 2 is preferably circular or square plate shapes.
  • the support plate 2 is surrounded by a circular peripheral edge, so that the support plate 2 can be covered by a standardized cover 1.
  • the support region of the heat exchanger body 5 provides a support collar 9 which surrounds the support plate 2 peripherally completely, onto which the dom-formed cover 1 preferably rests in airtight manner.
  • the preferably transparent formed cover 1 protects the resting on the support plate 2 refrigerated goods on the one hand against external influences and on the other hand prevents the flow of heat and condensation on the support surface of the cooling plate 2. order for the most effective isolation of an enclosed by the cover 1 inner volume to the surrounding atmosphere create, it is advantageous to put the cover 1 on a largely elastic thermal protection layer 4 at the edge region.
  • the solution designed in accordance with serving should be realized with materials as easy as possible, so that they can be offset by normal operators by hand.
  • FIG. 2 shows a longitudinal section through a cover 1 which rests on a base 10 which does not necessarily have to be identical to the support plate 2 described in FIG. Rather, this may be a tabletop, on which a plate or tray 11 rests, on which in turn rest on perishable food that it is, for example.
  • the cover 1 provides a surface cooling and / or proceedingsnMapappel 12, which is arranged in the upper region of the cover 1 and consists of the following components:
  • Concave side of the cover 1 is a surface element 13, for example.
  • the surface element 13 is connected to its rear side via a heat-conducting, preferably likewise made of aluminum or copper heat transfer element 14, which directly thermally contacts a Peltier element 15.
  • the Peltier element 15 in turn is connected at the back to a base cooling surface 16, preferably made of copper.
  • the base cooling surface 16, the Peltier element 15 and the heat-conducting member 14 has fixed to each other, preferably by means of a silver-containing adhesives, whereas the surface element 13 via screw 17 firmly and flush to the heat-conducting member 14 is compressible and thus a intimate and good thermal contact with the heat-conducting element 14 produces.
  • the screw 17 are realized by means of polyamide screws to avoid thermal bridges.
  • the Peltier element 15 and the heat-conducting element 14 extends through an opening 18 within the cover 1, wherein between the base cooling surface 16 and the cover 1 and the surface element 13 and the cover 1 thermally insulating material layers 19, 20 are provided, on the one hand thermally decouple the surface element 13 as completely as possible thermally from the base cooling surface 16, on the other hand provide a firm fit relative to the cover 1.
  • cooling convectors 22 are via heat conducting bridges 21, which are preferably made of copper intended.
  • a fan unit 23 is provided centrally of the cooling device shown in Figure 2 outside the Abdeckgephaseuses 1, through which an ambient air flow 24 is directed to the base cooling surface 16, the side by intermediate gaps 25, which are enclosed by the cooling convectors 22, emerge as a cooling air flow.
  • a preferably designed as a battery unit electrical energy source is provided, which is capable of supplying the fan unit 23 and the Peltier element 15 with electricity.
  • a switch unit is provided, with which the direction of current flow through the Peltier element 15 can be selected and thereby the surface element 13 either as described above as a cooling surface, or as a heating surface can be operated.
  • FIG 3 is a longitudinal sectional view is shown by a serving device, which is comparable to the representation shown in Figure 1, however, the alternative serving device is supplemented in the region of the support plate 2 with a vacuum source 26 which is fixed in the region of the base 7 and with at the Surface of the support plate 2 opening suction lines 27 is connected.
  • the vacuum source 26, preferably designed as a diaphragm pump, is capable of evacuating, via the suction lines 27, at least partially the volume enclosed by the platen 2 and the cover 1, thus creating an atmosphere within the serving device in which perishable foodstuffs obtain a longer shelf life ,
  • This additional, very advantageous combination is very useful, for example, when stored overnight in the serving device for a long time, for example.
  • the vacuum source 26 can be activated manually via a switch not shown, as it is possible, the vacuum source 26 via a Periodically activate control device, for example, every 5 to 10 minutes for about 10 seconds to put into operation.
  • the vacuum source 26 like the fan assembly 6, is powered by an electrical energy source present on the serving device to ensure manual and self-serviceability of the serving device.
  • the negative pressure source 26 as well as the fan assembly 6 can be supplied with electrical energy via an externally connectable mains cable.
  • the negative pressure source 26 in the region of the covering hood 1, in particular into a covering hood, which is formed in an embodiment shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un dispositif de service qui est destiné à des denrées rapidement périssables et qui comprend une plaque de pose présentant au moins une surface de pose pour les aliments, ainsi qu'un dispositif de chauffage et/ou de refroidissement qui est ou peut être mis en contact thermique avec la plaque de pose, qui présente au moins un élément Peltier et qui peut être raccordé à une source d'énergie électrique. L'invention est caractérisée en ce que l'élément Peltier est placé sur la face opposée à la surface de pose de la plaque de pose et est en contact physique direct ou indirect avec cette plaque, en ce que le dispositif de service comprend au moins un corps échangeur thermique qui est en contact thermique avec l'élément Peltier et qui est isolé thermiquement de la plaque de pose au moyen d'une zone d'appui présentant au moins une couche isolante thermique sur laquelle repose la plaque de pose, et en ce que l'élément Peltier est placé entre la plaque de pose et la zone d'appui du corps échangeur thermique.
PCT/EP2007/007099 2006-08-17 2007-08-10 Dispositif de service Ceased WO2008019805A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006012714U DE202006012714U1 (de) 2006-08-17 2006-08-17 Serviervorrichtung
DE202006012714.3 2006-08-17

Publications (2)

Publication Number Publication Date
WO2008019805A2 true WO2008019805A2 (fr) 2008-02-21
WO2008019805A3 WO2008019805A3 (fr) 2008-04-17

Family

ID=37311663

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/007099 Ceased WO2008019805A2 (fr) 2006-08-17 2007-08-10 Dispositif de service

Country Status (2)

Country Link
DE (1) DE202006012714U1 (fr)
WO (1) WO2008019805A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109222578A (zh) * 2018-10-25 2019-01-18 湖南工业大学 一种冬天餐桌食物保温装置
DE102018113249A1 (de) 2018-06-04 2019-12-05 Hupfer Metallwerke Gmbh & Co. Kg Kühl-/Heizvorrichtung für Lebensmittel und Verfahren zum Betrieb der Kühl-/Heizvorrichtung

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Publication number Priority date Publication date Assignee Title
ES2353510A1 (es) * 2008-12-29 2011-02-25 Tello Juan Romero Electrodomestico para la conservacion de alimentos perecederos.
DE202009006812U1 (de) 2009-05-11 2009-08-27 Kunststoff- Und Blechverarbeitung Burkhardt Gmbh Präsentationstisch mit einer Wanne für Scherbeneis
DE102009020827B4 (de) 2009-05-11 2011-05-19 Kunststoff- Und Blechverarbeitung Burkhardt Gmbh Präsentationstisch mit einer Wanne für Scherbeneis
US9016192B2 (en) 2010-05-17 2015-04-28 The Vollrath Company, L.L.C. Hot-and-cold serving station
DE202012011627U1 (de) * 2012-12-05 2013-01-08 Gunther Wobser Trinkgefäß oder Teller mit mindestens einem integrierten Peltierelement
CN109222428A (zh) * 2018-10-15 2019-01-18 郑州泰隆兴电子科技有限公司 一种多媒体互动餐桌

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IT1033739B (it) * 1975-07-30 1979-08-10 Saleri S Contenitore a tenuta stagna per la conservazione di vivande sottovuoto ad uso domestico munito di mezzi per la creazione del vuoto interno
JPH01169285A (ja) * 1987-12-24 1989-07-04 Sanyo Electric Co Ltd 冷却容器
DE20008938U1 (de) * 2000-05-19 2000-08-31 Pepatec Gmbh Wärmetauscher sowie Vorrichtung zum Temperieren einer Fläche oder eines Volumens
US6370882B1 (en) * 2000-09-08 2002-04-16 Distinctive Appliances, Inc. Temperature controlled compartment apparatus
NL1020917C2 (nl) * 2002-06-21 2003-12-23 Jong Participatie Bakkum B V D Botervloot.
DE102004015490A1 (de) * 2004-03-26 2005-10-13 Watlow Gmbh Erwärmvorrichtung für Speisen
FR2871036B1 (fr) * 2004-06-08 2007-11-16 Conseil Et Tech Sarl Appareil electromenager pour l'affinage et le stockage des fromages

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018113249A1 (de) 2018-06-04 2019-12-05 Hupfer Metallwerke Gmbh & Co. Kg Kühl-/Heizvorrichtung für Lebensmittel und Verfahren zum Betrieb der Kühl-/Heizvorrichtung
CN109222578A (zh) * 2018-10-25 2019-01-18 湖南工业大学 一种冬天餐桌食物保温装置

Also Published As

Publication number Publication date
WO2008019805A3 (fr) 2008-04-17
DE202006012714U1 (de) 2006-10-19

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