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EP1899662A1 - Procede et dispositif pour maintenir une temperature - Google Patents

Procede et dispositif pour maintenir une temperature

Info

Publication number
EP1899662A1
EP1899662A1 EP06742829A EP06742829A EP1899662A1 EP 1899662 A1 EP1899662 A1 EP 1899662A1 EP 06742829 A EP06742829 A EP 06742829A EP 06742829 A EP06742829 A EP 06742829A EP 1899662 A1 EP1899662 A1 EP 1899662A1
Authority
EP
European Patent Office
Prior art keywords
thermal
temperature
thermal battery
storage medium
battery
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.)
Withdrawn
Application number
EP06742829A
Other languages
German (de)
English (en)
Inventor
Manfred Zorn
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.)
IPV Inheidener Produktions- und Vertriebsgesellschaft mbH
Original Assignee
IPV Inheidener Produktions- und Vertriebsgesellschaft mbH
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 IPV Inheidener Produktions- und Vertriebsgesellschaft mbH filed Critical IPV Inheidener Produktions- und Vertriebsgesellschaft mbH
Publication of EP1899662A1 publication Critical patent/EP1899662A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
    • 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
    • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
    • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
    • F25D2303/082—Devices using cold storage material, i.e. ice or other freezable liquid disposed in a cold storage element not forming part of a container for products to be cooled, e.g. ice pack or gel accumulator
    • F25D2303/0822—Details of the element
    • F25D2303/08221—Fasteners or fixing means for the element
    • 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
    • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
    • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
    • F25D2303/084—Position of the cold storage material in relationship to a product to be cooled
    • F25D2303/0844—Position of the cold storage material in relationship to a product to be cooled above the product
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/12—Portable refrigerators

Definitions

  • the invention relates to a method for maintaining a desired temperature by means of a thermal battery in a thermal container according to the preamble of claim 1, in particular in a operated by Peltier elementsdeoder or heat box, wherein in the thermal container in an active temperature control by means of a thermocouple with a thermal radiator the desired temperature is generated due to a temperature difference to the outside temperature and wherein in a passive tempering the thermocouple is not operated.
  • the invention relates to a thermal battery for a thermal container, in particular for a operated by Peltier element cooling or heat box, according to the preamble of claim 6.
  • the thermal container thermally insulated walls and at least one thermocouple with at least one Thermoabstrahler on.
  • thermo medium for example H 2 O.
  • H 2 O This thermo medium leads in the said temperature range between about 0 ° and -20 0 C a Aggregatszu- Stands change from solid to liquid and vice versa. With H 2 O, this change takes place between ice and water at 0 ° C.
  • energy is needed, whereby the medium does not heat itself.
  • energy In order to convert ice from 0 0 C into water from 0 0 C, energy must be supplied to the ice. The required energy usually comes from the ambient heat and thus cools the environment accordingly.
  • the thermal medium To reuse such a thermal battery, the thermal medium must be returned to the solid state of aggregation. This is conventionally carried out in a stationary freezer, as this in turn also a temperature between 0 ° and -20 0 C or lower is needed. It is about the same temperature range in which the aggregate change from liquid to solid takes place.
  • thermal containers themselves have no active cooling. Thus, when using suchdeakkus with thermal containers, only a single use of the cooling batteries is possible. Thereafter, the rechargeable battery in a stationary freezer must be re-cooled to be ready for use again.
  • thermobondings achieve - not the low cooling temperatures necessary to cool and reinsert a known rechargeable battery.
  • DE 200 13 855 Ul an energy-optimized Peltier cooling device is known.
  • a special air duct for discharging the waste heat of the Peltier element is provided.
  • a battery for energy storage is present when, for example, solar collectors excess energy is available.
  • EP 13 02 410 Al a transport container for blood plasma and samples is described, which must be transported in a positive temperature range near 0 °.
  • the housing is double-walled.
  • a tempering medium is filled in, which ensures the maintenance of a temperature in the range of low plus degrees Celsius.
  • the invention is based on the invention to provide a method and an apparatus, with which in mobile, for example electrically operated, thermal containers, without supplying external energy, a desired temperature can be maintained simply and effectively for a longer time.
  • the object is achieved by a method having the features of claim 1 and a thermal battery for Thermobe- ratios with the features of claim 6.
  • the method according to the invention for maintaining a desired temperature in a thermo box is characterized indicates that for a thermal battery, a temperature storage medium is selected, in which the change of the state of aggregation in the positive degree Celsius range is performed, and that in the passive tempering about the temperature difference, which was achieved in the active tempering in the Thermo concerned- nis, by a Changing the state of aggregation of the temperature storage medium in particular from solid to liquid in the thermal battery over a longer time is substantially maintained.
  • a basic idea of the invention is not to use conventional cold accumulators, which only resume the solid state of aggregation at lower minus temperatures, but to use newer temperature storage media, which carry out this aggre- gate state change already in the positive temperature range.
  • Electric coolers achieve a temperature difference of about 20 0 C. At + 25 ° C ambient temperature to a maximum of + 5 ° C as the inside of the box can be achieved. At + 5 ° C, conventional temperature storage media do not undergo an aggre- gate state change from the liquid to the solid state.
  • the temperature storage medium used which may be, for example, certain paraffins, but already in this temperature range, the aggregate state change in the solid state.
  • the thermal battery it is possible to arrange the thermal battery anywhere in the thermal container, ie in a cooling or heat box.
  • the temperature storage medium is arranged in the thermal battery, in particular in the vicinity of the thermal radiator in the thermal container.
  • the thermal battery is placed in the vicinity of the Thermoabstrahlers.
  • the desired or a slightly lower temperature is radiated through the thermocouple, without it being significantly influenced by the air inside the container, such as heated or cooled.
  • the air inside the container such as heated or cooled.
  • it is particularly cold in a cool box or warm in a heat box.
  • the temperature storage medium of the thermal battery in the active temperature phase a change of the state of matter, in particular from liquid to solid, approximately in the desired temperature range, in the positive degree Celsius range is realized.
  • the thermal battery in an external cooling device a freezer
  • this Zöststands touchscreen can be performed in the network-bound operation of the Thermo proceedingsnis- ses. This eliminates the need for an external cooling device.
  • the temperature range in which the change in the state of aggregation of the temperature storage medium takes place can be selected close to the maximum, achievable extreme temperature of the thermobondment, such as a cool box, in order to allow a particularly good cooling or heating effect.
  • Another possibility is to design the cooling battery with the thermo medium so that it is cooled down further in the solid state. As a result, the cold energy of the battery can be used in the passive phase.
  • thermal battery In principle, every desired shape of a thermal battery is possible. Since the thermal battery but also acts as a cold or heat extraction during the passive tempering, it is advantageous if the volume of the temperature storage medium is provided in a surface enlarged thermal battery. As a result, a particularly good thermal radiation can be achieved. This is possible, for example, a wave-like or sawtooth surface basic shape.
  • the change of the state of aggregation of the temperature-storage medium in the temperature range between + 3 ° C and + 12 0 C, in particular between + 5 ° C and + 10 0 C, preferably at about +8 0 C is selected.
  • the temperature storage medium can be chosen such that the state of aggregate change is carried out at the temperature which can be reached as the extreme temperature. This means the coldest temperature, when the thermal battery is intended for cooling, or the highest achievable temperature, as far as the Keeping warm is used.
  • the temperature range, when cooling over, and during heating can be below the respective extreme temperature.
  • the corresponding temperature to the state of aggregate change must first be achieved.
  • thermoelectric phase a high temperature transmission capacity is created by the spatial arrangement and envelope structure of the thermal battery. This can be achieved, for example, in that the thermal battery has direct contact with the thermocouple of the Peltier element.
  • the temperature storage medium in the thermal battery performs the change of state of aggregation, for example, from liquid to solid, particularly well.
  • An inventive thermal battery is characterized in that it has at least one temperature storage medium in which the change of state of aggregation is also for cooling in the positive degree Celsius range and that the thermal battery is arranged detachably in the region of the thermocouple.
  • the temperature storage medium and its melting point can be chosen so that the change of state of aggregation takes place in any temperature range. It is preferred that the temperature range between + 3 ° C and + 12 ° C, in particular between + 5 ° C and + 10 0 C, and especially at about +8 0 C. These ranges are preferred because they describe the minimum achievable internal temperature with a Peltier cooler, in which still a state of aggregate state change of the temperature storage medium can be performed. A possible, suitable for this temperature storage medium are paraffins. The choice of this temperature range can also offer the advantage that the state of aggregate change in the passive cooling phase very early in the direction of positive temperature temperatures, and so the cooling effect of the thermal battery starts very early. This maintains a low temperature for a long time. However, it is also conceivable to use the cooling effect of the state of aggregate change later.
  • the temperature range for the change of the state of aggregation between +40 0 C and +60 0 C.
  • the desired temperature to be maintained in the interior of the thermo box plays a significant role.
  • the state of aggregate change upon heating may be set a few degrees above the desired temperature to be maintained. Depending on the intended use, this can be between +40 0 C and +60 0 C or between + 45 ° C and + 55 ° C or in the range around +50 0 C.
  • such a thermal container can be operated with any type of cooling or heating device.
  • a thermocouple in the form of a Peltier element, which can be designed and / or connected as a cooling element or heat element.
  • Peltier element instead of a Peltier element, other cold or heat generating devices are used. So the use of cooling compressor technology is conceivable.
  • Peltier thermocouples offer the advantage that they can be used to achieve both cooling and heating effects. In addition, they have little or no noise and take up little space compared to devices of other cooling techniques.
  • the thermal battery it is possible to arrange the thermal battery anywhere in the thermobond. However, it is preferred if the thermal battery is in positive contact with the thermal radiator, in particular the radiator fins of the thermal radiator. This ensures that the temperature generated by the thermocouple on the thermocouple transitions particularly well on the thermal battery.
  • the desired state of aggregation usually the solid state, is achieved quickly and effectively in the active tempering phase.
  • Through intensive positive contact it is also possible to avoid insulating layers of air between the radiating fins and the thermal battery.
  • the thermal battery is designed in the form of a bag, in particular an aluminum bag, and is fastened to the thermal emitter by holding and tensioning means.
  • a particularly simple and flexible attachment of the thermal bag on Thermoabstrahler is possible.
  • Due to the detachable attachment of the thermal battery is basically the possibility of cooling the thermal battery in external cooling devices, although this is not necessary with the described cooler or the method according to the invention.
  • the thermal box when used only in stationary use with power connection, can be used without the space-taking thermal battery, whereby a larger internal volume is available. But there are no limits to the basic shape of the thermal battery.
  • the thermal battery has a relatively large thermal surface, in particular flat and thermal radiation surface.
  • the internal temperature can be influenced particularly well by the thermal battery become.
  • Such a surface enlargement can be realized for example by a waveform or a sawtooth-like basic shape.
  • the container is designed as a minibar.
  • This offers in hotels, for example, the advantage of cooling the minibar only by electricity at night, and provide during the day by means of the thermal battery according to the invention for a temperature.
  • cheaper night stream can be used for cooling.
  • FIG. 1 is a perspective view of a portion of a cooler with a thermal battery according to the invention.
  • Fig. 2 is a perspective view of a thermal battery according to the invention.
  • Fig. 3 is a sectional side view of a cool box with thermal battery according to the invention.
  • a cooler 2 is shown with a thermal battery 1 according to the invention.
  • the thermocouple is located in this cooler 2 in the lid 3. Since the Thermoabstrahler 22 (not visible here) is also attached to the cover 3, the thermal battery 1 according to the invention is mounted there.
  • the thermal battery 1 shown here has an elevated thermal radiation surface 12 through a sawtooth-like surface. This serves to improve Changing the temperature with the air and objects inside the cooler.
  • the thermal container 2 also has an insulated wall 4, whereby the generated temperature difference to the environment can be better maintained.
  • thermocouple 22 of the thermocouple When attaching this thermal battery 1, as shown in Fig. 2. As a result, a very good heat or cold transfer between the thermal radiator 22 and the thermal battery 1 is achieved.
  • the state of aggregate change for example from liquid to solid, can be realized particularly well in the active thermal phase.
  • the thermal battery 1 has a U-shaped cross-section 14. In its interior, a channel 13 is formed. This is used to hold the Thermoabstrahlers 22.
  • the cooling battery 1 is designed so that the Thermoabstrahler 22 is fully absorbed by the thermal battery 1.
  • Fig. 3 is a sectional side view of the thermal container 2 of FIG. 1 is shown.
  • a bottle 23 is located inside the thermal container 2.
  • the thermo-battery 1 is in positive-locking contact with the thermobattery 2. Due to the fact that the thermal battery 1 does not fill the entire longitudinal side of the thermal container 2, it is possible to cool even higher bottles 23 in the cooler 2. The better the insulation of the wall 4 is designed, the longer can be kept with the thermal battery 1, the interior at the desired temperature.
  • the ventilation slots 24 serve for exchanging air with the side of the spacer element facing away from the interior. The larger and better the air flow is here, the higher the performance of the Peltier element.
  • the ventilation slots are therefore closely related to the design of the temperature of the physical state change of the thermal storage medium in the thermal battery 1.

Landscapes

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

Abstract

L'invention concerne un procédé pour maintenir une température voulue au moyen d'un accumulateur thermique (1) dans un contenant thermique (2). Selon l'invention, une température voulue est obtenue dans le contenant thermique (2) au cours d'une phase active de régulation de température par rapport à la température extérieure. Au cours d'une phase passive de régulation de température, un élément thermique n'est pas activé. Par ailleurs, un agent de stockage de température est sélectionné pour l'accumulateur thermique (1), cet agent changeant d'état dans la plage de température Celsius positive et refroidissant ainsi l'espace intérieur. L'invention concerne en outre un accumulateur thermique (1).
EP06742829A 2005-06-29 2006-05-08 Procede et dispositif pour maintenir une temperature Withdrawn EP1899662A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510030362 DE102005030362B3 (de) 2005-06-29 2005-06-29 Verfahren und Vorrichtung zur Aufrechterhaltung einer Temperatur
PCT/EP2006/004284 WO2007000208A1 (fr) 2005-06-29 2006-05-08 Procede et dispositif pour maintenir une temperature

Publications (1)

Publication Number Publication Date
EP1899662A1 true EP1899662A1 (fr) 2008-03-19

Family

ID=36999271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06742829A Withdrawn EP1899662A1 (fr) 2005-06-29 2006-05-08 Procede et dispositif pour maintenir une temperature

Country Status (3)

Country Link
EP (1) EP1899662A1 (fr)
DE (1) DE102005030362B3 (fr)
WO (1) WO2007000208A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007021406A1 (de) * 2007-05-04 2008-11-06 Werner-Alfons Litterst Temperiertasche
KR102416937B1 (ko) 2017-11-29 2022-07-05 엘지전자 주식회사 냉온장고
AU2019259641A1 (en) 2018-04-23 2020-11-12 Dometic Sweden Ab Damped mobile compressor
WO2019244011A1 (fr) 2018-06-18 2019-12-26 Dometic Sweden Ab Système de chauffage, ventilation et climatisation avec éclairage
DE102018222877B4 (de) 2018-12-21 2020-10-01 Dometic Sweden Ab Dachklimaanlageneinheit, Verfahren zur Herstellung, Montage und Installation der Dachklimaanlageneinheit und Fahrzeug mit der Dachklimaanlageneinheit
WO2020188485A2 (fr) 2019-03-18 2020-09-24 Dometic Sweden Ab Climatiseur mobile
US11951798B2 (en) 2019-03-18 2024-04-09 Dometic Sweden Ab Mobile air conditioner
DE102019212947B4 (de) 2019-08-28 2025-01-23 Dometic Sweden Ab Klimaanlage
USD1010080S1 (en) 2020-05-15 2024-01-02 Dometic Sweden Ab Housing for air conditioning apparatus
USD1027143S1 (en) 2021-07-12 2024-05-14 Dometic Sweden Ab Housing shroud for an air conditioner
USD1057118S1 (en) 2021-08-16 2025-01-07 Dometic Sweden Ab Housing for a heat exchanger

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579170A (en) * 1983-04-18 1986-04-01 The Dow Chemical Company Container for thermal energy storage materials

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Publication number Priority date Publication date Assignee Title
DE4142842A1 (de) 1991-09-26 1993-04-01 Wolfgang Wasserthal Tragbares kuehlbehaeltnis
JPH05264153A (ja) * 1992-03-19 1993-10-12 Matsushita Electric Works Ltd 冷蔵庫
GB9516486D0 (en) 1995-08-11 1995-10-11 Jones Timothy R T Cooling apparatus
US5950450A (en) 1996-06-12 1999-09-14 Vacupanel, Inc. Containment system for transporting and storing temperature-sensitive materials
DE20013855U1 (de) * 2000-08-11 2001-02-01 Adelmann, Christel, 89171 Illerkirchberg Energieoptimiertes Peltierkühlgerät
US7082773B2 (en) 2000-11-02 2006-08-01 Tellurex Corporation Temperature-controlled storage system
DK1302410T3 (da) * 2001-10-10 2009-04-06 Delta T Ges Fuer Medizintechni System til transport af gods ved konstant temperatur

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579170A (en) * 1983-04-18 1986-04-01 The Dow Chemical Company Container for thermal energy storage materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007000208A1 *

Also Published As

Publication number Publication date
DE102005030362B3 (de) 2006-11-23
WO2007000208A1 (fr) 2007-01-04

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