WO2008082392A1 - Récipients chauds ou froids thermoélectriques - Google Patents

Récipients chauds ou froids thermoélectriques Download PDF

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Publication number
WO2008082392A1
WO2008082392A1 PCT/US2006/049597 US2006049597W WO2008082392A1 WO 2008082392 A1 WO2008082392 A1 WO 2008082392A1 US 2006049597 W US2006049597 W US 2006049597W WO 2008082392 A1 WO2008082392 A1 WO 2008082392A1
Authority
WO
WIPO (PCT)
Prior art keywords
receptacle
heat transfer
inner container
pan
thermoelectric
Prior art date
Application number
PCT/US2006/049597
Other languages
English (en)
Inventor
Abbas A. Alahyari
Gary D. Winch
Trevor E. Bailey
Original Assignee
Carrier Corporation
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 Carrier Corporation filed Critical Carrier Corporation
Priority to US12/521,744 priority Critical patent/US20100043451A1/en
Priority to PCT/US2006/049597 priority patent/WO2008082392A1/fr
Publication of WO2008082392A1 publication Critical patent/WO2008082392A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials

Definitions

  • the present invention relates to cooling or heating of nested pan structures and, more particularly, to thermoelectric cooling or heating of pans nested in receptacles.
  • the cooling of the pan with the food in it is provided by a cyclic refrigeration system based on the vapor- compression cycle of a circulating refrigerant with the system evaporator coils positioned along the inner pan bottom in the space between the inner and outer pans.
  • the heating of the pan with the food in it is provided by an electrical resistive heater with its heat emanating resistive components positioned about the outside of that pan again in the space between the inner and outer pans.
  • pan heating and cooling arrangements either require considerable attention in monitoring ice levels or water temperatures, and replacing same as needed by removing the inner pan temporarily to allow refilling the space (and often to also take the inner plan to the food source to replenish same), or are noisy and expensive for use with relatively small food containing pans typically used at serving counters or tables.
  • pan cooling and heating arrangements BRIEF SUMMARY OF THE INVENTION
  • the present invention provides a containertemperature control system for a removable container having an inner container and a receptacle in which the inner container can be positioned leaving a separation space therebetween, and from which the inner container can be removed.
  • a thermoelectric based heat transfer unit is positioned in an opening in the receptacle such that an interior portion thereof is positioned in the separation space and that an exterior portion thereof is positioned outside of the receptacle with heat being selectively transferable between these interior and exterior portions.
  • Figure 1 shows a front cross section view of a pan arrangement embodying the present invention
  • FIG. 2 shows a front cross section view of an alternative pan arrangement embodying the present invention
  • Figure 3 shows a front cross section view of an alternative pan arrangement embodying the present invention.
  • Thermoelectric cooling and heating has been used with portable coolers and heaters.
  • Thermoelectric cooling and heating devices are entirely solid state devices using the Peltier effect in semiconductor or semimetal materials to convert controlled electrical currents into corresponding thermal gradients between an input surface of the device module, thermally coupled to that which is to be cooled or a source of heat, and an output surface thereof thermally coupfed to that which is to be heated or some sort of heat sink. Whether one of the major surfaces of a thermoelectric device is an input surface or an output surface is determined by the direction of electric current supplied therethrough.
  • thermoelectric modules provide convenient and economical heating or cooling, or both, for a portable inner pan and outer pan receptacle food serving arrangements with an easily removeable inner pan, and with better temperature control and energy efficiency. These modules are positioned and supported in the outer pan receptacle without being affixed to the inner pan, and cool or heat that inner pan either convectively or conductively so as to allow that inner pan to be easily removed from the outer pan receptacle.
  • Figure 1 shows a front cross section view of such an inner pan and outer pan receptacle food serving arrangement, 10.
  • An inner pan, 11 of a thermally conductive material is provided to, for example, receive therein food and is supported in an outer receptacle, or outer pan receptacle, 12, which is in turn supported on a stand, 13.
  • inner pans of other sizes can instead be used such as the alternative deeper pan, 11 N, shown in Figure 1 in dashed line form.
  • Receptacle 12 is formed of an outer shell, 14, typically of metal, and filled in the interior thereof with a foam insulation, 15.
  • An opening in the bottom of receptacle 12 accommodates affixed therein to the receptacle bottom wall a thermoelectric based cooling and heating unit, 16.
  • a portion of unit 16 is in the space between inner pan 11 and receptacle 12 on one side of the receptacle bottom wall, and another portion thereof is outside of the receptacle bottom wall in the space created by stand 13 between the receptacle bottom wall and the surface (not shown) supporting stand 13.
  • Receptacle outer shell 14 has inner pan supports, 17, on which inner pan 11 can be placed for support and from which pan 11 can be easily removed.
  • Thermoelectric based cooling and heating unit 16 has a thermoelectric device module, 18, with an upper thermal transfer plate, 18N, and a lower thermal transfer plate, 18NN, with the thermoelectric device portion thereof positioned therebetween, and on either side of which is provided one of a pair of foam insulation spacers, 15N.
  • An upper finned heat transfer structure, 19, has a plate portion thereof against upper thermal transfer plate 18N and both of foam insulation spacers 15N with fins extending upward from that plate portion as does a pedestal supporting a fan, 20.
  • a lower finned heat transfer structure, 21 has a plate portion thereof against lower thermal transfer plate 18NN and both of foam insulation spacers 15N with fins extending downward from that plate portion as does a pedestal supporting a fan, 22.
  • Unit 16 is also appropriately interconnected to the electrical power supply and control system provided in and for inner pan and outer pan receptacle food serving arrangement 10. Directing electrical current in one direction through the thermoelectric device portion of thermoelectric device modulei ⁇ in thermoelectric based cooling and heating unit 16 causes upper thermal transfer plate 18N to be the module input plate drawing in heat through upper finned heat transfer structure 19 from the air in the space between inner pan 11 and receptacle 12 circulated over those fins by fan 20.
  • lower thermal transfer plate 18NN is caused to be the output plate to transfer heat to the exterior of receptacle 12 through lower finned heat transfer structure 21 into the air external to arrangement 10 circulated over those fins by fan 22.
  • inner pan and outer pan receptacle food serving arrangement 10 is caused to be a forced convection cooler to cool items contained in pan 11 through convective transfers both in the space between pan 11 and receptacle 12 and on the outside of receptacle 12.
  • thermoelectric based cooling and heating unit 16 Directing electrical current in the opposite direction through the thermoelectric device portion of thermoelectric device module18 in thermoelectric based cooling and heating unit 16 reverses the direction of heat flow along the same path just described to cause inner pan and outer pan receptacle food serving arrangement 10 to be a forced convection heater to heat items contained in pan 11.
  • FIG. 2 shows a front cross section view of an alternative inner pan and outer pan receptacle food serving arrangement, 10N, in which fan 20 is not used but instead an alternative upper finned heat transfer structure, 19N, is provided in a thermoelectric based cooling and heating unit, 16N, having the fins thereof directly against the bottom of inner pan 11.
  • thermoelectric based cooling and heating unit 16 causes heating or cooling of that pan.
  • heat transfer plate could be used without fins with the bottom of pan 11 positioned thereagainst for heat transfer by conduction through that pan and plate.
  • thermoelectric based cooling and heating unitsi 6 or 16N can be used in such inner pan and outer pan receptacle food serving arrangements. This is especially desirable in larger arrangements using larger, or multiple compartment, versions of pan 11.
  • Figure 3 shows a front cross section view of an inner pan and outer pan receptacle food serving arrangement, 10NN, in which three of pans 11 have been welded together at the adjacent edges thereof to form a larger, three compartment pan, 11 NN.
  • Receptacle 12N in Figure 3 is shown without a corresponding support stand 13 which, of course, could be provided so the outer fans in units 16 could operate without interference from the arrangement supporting surface.
  • This omission is to indicate that such inner pan and outer pan receptacle food serving arrangements as shown in the various figures, although useable with stands for portability, can alternatively be provided as built-ins to be affixed in more permanent serving counters or tables. The receptacle is affixed in such more permanent serving counters or tables thereby still leaving the inner pan or pans easily removable for purposes of replenishment or for cleaning after use.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cookers (AREA)

Abstract

L'invention concerne un système de réglage de la température d'un récipient comportant un récipient intérieur et un réceptacle dans lequel le récipient intérieur peut être placé. Un corps de chauffe thermoélectrique est disposé dans une ouverture du réceptacle, de telle sorte qu'une partie interne du corps de chauffe se trouve à côté du récipient intérieur et une partie externe à l'extérieur, la chaleur étant transférable sélectivement entre lesdites partie interne et partie externe.
PCT/US2006/049597 2006-12-29 2006-12-29 Récipients chauds ou froids thermoélectriques WO2008082392A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/521,744 US20100043451A1 (en) 2006-12-29 2006-12-29 Thermoelectric hot/cold pans
PCT/US2006/049597 WO2008082392A1 (fr) 2006-12-29 2006-12-29 Récipients chauds ou froids thermoélectriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/049597 WO2008082392A1 (fr) 2006-12-29 2006-12-29 Récipients chauds ou froids thermoélectriques

Publications (1)

Publication Number Publication Date
WO2008082392A1 true WO2008082392A1 (fr) 2008-07-10

Family

ID=39588902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/049597 WO2008082392A1 (fr) 2006-12-29 2006-12-29 Récipients chauds ou froids thermoélectriques

Country Status (2)

Country Link
US (1) US20100043451A1 (fr)
WO (1) WO2008082392A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9909789B2 (en) * 2012-01-10 2018-03-06 Spring (U.S.A.) Corporation Heating and cooling unit with canopy light
US8850829B2 (en) * 2012-01-10 2014-10-07 Spring (U.S.A.) Corporation Heating and cooling unit with semiconductor device and heat pipe
USD811802S1 (en) 2016-07-15 2018-03-06 Spring (U.S.A.) Corporation Food server
US10390456B2 (en) 2016-11-07 2019-08-20 Rockwell Automation Technologies, Inc. Controller with fan monitoring and control

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060277924A1 (en) * 2005-06-09 2006-12-14 Robert Platkin Cold hot server

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060077396A (ko) * 2004-12-30 2006-07-05 엘지전자 주식회사 냉장고 및 냉장고의 하이브리드 냉각구조
EP1938024A1 (fr) * 2005-09-29 2008-07-02 Carrier Corporation Réchaud/congélateur mobile avec dispositifs thermoélectriques

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060277924A1 (en) * 2005-06-09 2006-12-14 Robert Platkin Cold hot server

Also Published As

Publication number Publication date
US20100043451A1 (en) 2010-02-25

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