US20210204754A1 - Hot and cold holding system - Google Patents
Hot and cold holding system Download PDFInfo
- Publication number
- US20210204754A1 US20210204754A1 US17/209,585 US202117209585A US2021204754A1 US 20210204754 A1 US20210204754 A1 US 20210204754A1 US 202117209585 A US202117209585 A US 202117209585A US 2021204754 A1 US2021204754 A1 US 2021204754A1
- Authority
- US
- United States
- Prior art keywords
- food pan
- cooling
- warming
- food
- pan
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims abstract description 246
- 235000013305 food Nutrition 0.000 claims abstract description 217
- 238000010792 warming Methods 0.000 claims abstract description 173
- 230000001105 regulatory effect Effects 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims description 121
- 239000012530 fluid Substances 0.000 claims description 44
- 230000006698 induction Effects 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims 3
- 230000033228 biological regulation Effects 0.000 description 23
- 238000005057 refrigeration Methods 0.000 description 12
- 238000012545 processing Methods 0.000 description 10
- 230000004913 activation Effects 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 235000021438 curry Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- 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
- A47J39/00—Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils
- A47J39/006—Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils for either storing and preparing or for preparing food on serving trays, e.g. heating, thawing, preserving
-
- 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
-
- 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
-
- 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
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
-
- 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
- A47J39/00—Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils
- A47J39/003—Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils with forced air circulation
-
- 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
- A47J2202/00—Devices having temperature indicating 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
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/021—Control thereof
Definitions
- Food products may need to be maintained at a certain temperature (e.g., before being served to a customer, etc.). For example, many food products need to be maintained in a certain temperature range to provide a desired eating experience or to comply with food safety regulations. Food products are traditionally maintained at a desired temperature using a unit that provides a temperature-controlled environment. By way of example, food pans may be typically heated in one set of wells and cooled in another set of wells of a temperature regulation unit. However, such split temperature regulation units require a large footprint and do not allow a food service operator to easily change the configuration of the food serving line or preparation line.
- the food pan well includes a base defining an internal cavity and a temperature regulating system disposed within the internal cavity.
- the base is configured to support a food pan such that the food pan is selectively suspendable within the internal cavity.
- the temperature regulating system includes a cooling assembly configured to facilitate cooling at least a sidewall of the food pan and a warming assembly configured to facilitate warming at least a bottom surface of the food pan.
- the food pan well includes a base defining an internal cavity and a temperature regulating system disposed within the internal cavity.
- the base is configured to support a food pan such that the food pan is selectively suspendable within the internal cavity.
- the temperature regulating system includes a cooling assembly and a warming assembly.
- the cooling assembly includes at least one of a cooling conduit or an air current generator.
- the cooling conduit is configured to receive a thermally regulated working fluid.
- the cooling conduit is positioned proximate a sidewall of the food pan when the food pan is suspended within the internal cavity.
- the air current generator is configured to provide a cooled air current within the internal cavity.
- the warming assembly includes an induction heating coil and an inverter.
- the induction heating coil is positioned beneath a bottom wall of the food pan when the food pan is suspended within the internal cavity.
- the inverter is configured to regulate power provided to the induction heating coil.
- the food pan well includes a base and a temperature regulating system.
- the base defines an internal cavity.
- the base is configured to support a plurality of food pans such that the plurality of food pans are selectively suspendable within the internal cavity simultaneously.
- the temperature regulating system includes a cooling assembly and a warming assembly.
- the cooling assembly includes a plurality of cooling conduits positioned within the internal cavity and a plurality of cooling pumps. Each of the plurality of cooling conduits is positioned proximate a sidewall of a respective one of the plurality of food pans when the respective one of the plurality of food pans is suspended within the internal cavity.
- Each of the plurality of cooling pumps is associated with one of the plurality of cooling conduits and configured to drive a working fluid therethrough.
- the warming assembly includes a plurality of induction heating coils positioned within the internal cavity and an inverter. Each of the plurality of induction heating coils is positioned beneath a respective one of the plurality of food pans when the respective one of the plurality of food pans is suspended within the internal cavity.
- the inverter is configured to regulate power provided to each of the plurality of induction heating coils.
- FIG. 1 is a perspective view of a temperature regulation unit, according to an exemplary embodiment
- FIG. 2 is a cross-sectional view of a warming and cooling system of the temperature regulation unit of FIG. 1 , according to an exemplary embodiment
- FIG. 3 is a cross-sectional view of a warming and cooling system of the temperature regulation unit of FIG. 1 , according to another exemplary embodiment
- FIG. 4 is a cross-sectional view of a warming and cooling system of the temperature regulation unit of FIG. 1 , according to still another exemplary embodiment
- FIG. 5 is a schematic diagram of the temperature regulation unit of FIG. 1 , according to an exemplary embodiment
- FIG. 6 is a schematic view of a single-zone warming or cooling system of the temperature regulation unit of FIG. 1 , according to an exemplary embodiment
- FIG. 7 is a schematic view of a multi-zone warming or cooling system of the temperature regulation unit of FIG. 1 , according to an exemplary embodiment
- FIG. 8 is a schematic view of a combined, multi-zone warming and cooling system of the temperature regulation unit of FIG. 1 , according to an exemplary embodiment
- FIGS. 9 and 10 are various views of user interfaces of the combined, multi-zone warming and cooling system of FIG. 8 , according to various exemplary embodiments;
- FIG. 11 is a schematic view of a combined, single-zone, inline warming and cooling system of the temperature regulation unit of FIG. 1 , according to an exemplary embodiment.
- FIGS. 12-14 are various views of user interfaces of the combined, single-zone, inline warming and cooling system of FIG. 11 , according to various exemplary embodiments.
- a temperature regulation unit e.g., a hot-cold well, a hot-cold food pan holder, etc.
- a warming assembly that utilizes heating mechanisms (e.g., induction heaters, radiant heaters, Peltier devices, blanket heaters, strip heaters, etc.) and/or a cooling assembly including cooling mechanisms (e.g., an evaporative gas cooling system, a Peltier cooling system, cooling coils, Peltier devices, etc.).
- heating mechanisms e.g., induction heaters, radiant heaters, Peltier devices, blanket heaters, strip heaters, etc.
- cooling assembly including cooling mechanisms (e.g., an evaporative gas cooling system, a Peltier cooling system, cooling coils, Peltier devices, etc.).
- the temperature regulation unit may be capable of switching between a heating operation and a cooling operation, may be capable of providing a heating operation to a first zone and a cooling operation to a second zone simultaneously, and/or may be capable of providing varying degrees of heating and/or cooling to two or more zones simultaneously.
- An electronic control unit may control and regulate the temperature of one or more food pans received by the temperature regulation unit.
- Such a temperature regulation unit may advantageously save space in kitchen operations, save time, and/or provide a more sanitary environment.
- Traditional hot-cold wells require water systems to provide steam to heat food pans which may be large and unsanitary.
- the temperature regulation unit may also include an adjustable base that accommodates pans of different depths.
- a temperature regulation unit shown as hot-cold well 10
- the user interface 42 , the controller 50 , and the warming and cooling system 100 are at least partially disposed within and/or coupled to the base 20 .
- the base 20 is made from a non-metallic material.
- the base 20 has a plurality of sidewalls, shown as sidewalls 22 , that define the outer shape of the base 20 .
- the base 20 is rectangular in shape. In other embodiments, the base 20 is otherwise shaped (e.g., square, circular, etc.). As shown in FIG. 1 , the base 20 includes a surface, shown as top surface 24 , that extends around the periphery of the sidewalls 22 . The sidewalls 22 and the top surface 24 cooperatively define a cavity, shown as pan cavity 26 , that selectively receives one or more pans (e.g., stainless steel food pans, etc.), shown as food pans 30 , and houses the warming and cooling system 100 . As shown in FIG.
- the base 20 includes a protrusion, shown as ledge 28 , that extends around the periphery of the sidewalls 22 and is at least partially recessed into the pan cavity 26 .
- the ledge 28 extends inward from the sidewall 22 .
- the ledge 28 is positioned to provide a surface for the food pans 30 to rest on such that the food pans 30 are suspended within the pan cavity 26 .
- the base 20 is configured to support two half-sized food pans 30 .
- the base 20 may also support a single, full-sized food pan 30 .
- the base 20 is sized to receive three or more half-sized food pans 30 and/or two or more full-sized food pans 30 .
- a single, full-sized food pan 30 is replaceable with three on-third-sized food pans 30 .
- the food pans 30 define a cavity, shown as food cavity 32 .
- the food cavities 32 of the food pans 30 may have various depths to accommodate (e.g., receive, hold, store, etc.) different types of food products.
- the base 20 is adjustable such that food pans 30 having various depth food cavities 32 may be received by the base 20 .
- the food cavities 32 of the food pans 30 may facilitate a user (e.g., chef, cook, staff, owner, etc.) in separating or arranging various items (e.g., hot and cold items, solid and liquid items, align sandwiches or ice cream bars, etc.).
- a user e.g., chef, cook, staff, owner, etc.
- one food cavity 32 may receive a liquid-based food product (e.g., soup, etc.)
- another food cavity 32 may receive a solid-based food product (e.g., sandwiches, pasta, etc.).
- one food cavity 32 may receive a first food product that is desirable when warm and another food cavity 32 may receive a second food product that is desirable when cold.
- the warming and cooling system 100 includes an enclosure, shown as internal enclosure 110 ; a first thermal assembly, shown as cooling assembly 130 ; a second thermal assembly, shown as warming assembly 140 ; and one or more power devices, shown as inverters 150 .
- the warming and cooling system 100 additionally includes an air current device (e.g., a fan, a blower, etc.), shown as air current generator 160 ; a humidifier device, shown as humidifier 170 ; and/or one or more sensors, shown as sensors 180 .
- an air current device e.g., a fan, a blower, etc.
- humidifier device shown as humidifier 170
- sensors 180 shown as sensors 180 .
- the internal enclosure 110 includes a bottom surface, shown as a bottom wall 114 , and a plurality of sidewalls, shown as internal sidewalls 112 , that extend around the periphery of the bottom wall 114 .
- the bottom wall 114 at least partially extends upward along the periphery thereof (e.g., forms at least a portion of the internal sidewalls 112 , etc.).
- the bottom wall 114 is flat.
- the internal sidewalls 112 and the bottom wall 114 cooperatively define an internal cavity, shown as temperature regulated cavity 120 .
- the temperature regulated cavity 120 is configured to receive the food pans 30 when the food pans 30 are inserted within the pan cavity 26 of the base 20 such that the internal enclosure 110 surrounds at least a portion of the food pans 30 .
- the internal sidewalls 112 are manufactured from a first material and the bottom wall 114 is manufactured from a different, second material.
- the internal sidewalls 112 are manufactured from a metal or a metal alloy, and the bottom wall 114 is manufactured from a plastic or a polymer material.
- the internal sidewalls 112 and/or the bottom wall 114 are manufactured from another type of material (e.g., a ceramic material, etc.). In other embodiments, the internal sidewalls 112 and the bottom wall 114 are manufactured from the same material.
- the warming and cooling system 100 is configured to facilitate heating and/or cooling the contents stored within the food cavities 32 of the food pans 30 .
- the warming and cooling system 100 is configured to facilitate differentially heating and/or cooling the food pans 30 received within the hot-cold well 10 .
- one food pan 30 may be heated to a first temperature (e.g., 90 degrees Fahrenheit, etc.) and a second food pan 30 may be heated to a second, different temperature (e.g., 120 degrees Fahrenheit, etc.).
- one food pan 30 may be cooled to a first temperature (e.g., 45 degrees Fahrenheit, etc.) and a second food pan 30 may be cooled to a second, different temperature (e.g., 30 degrees Fahrenheit, etc.).
- a first temperature e.g., 45 degrees Fahrenheit, etc.
- a second food pan 30 may be cooled to a second, different temperature (e.g., 30 degrees Fahrenheit, etc.).
- a first temperature e.g., 90 degrees Fahrenheit, etc.
- a second food pan 30 may be cooled to a second, different temperature (e.g., 30 degrees Fahrenheit, etc.).
- the cooling assembly 130 includes a plurality of cooling elements, shown as cooling coils 132 , positioned along and around the periphery of the internal sidewalls 112 of the internal enclosure 110 .
- the cooling coils 132 may thereby be positioned between the sidewalls 22 of the base 20 and the internal sidewalls 112 of the internal enclosure 110 .
- the cooling coils 132 are additionally or alternatively positioned along the bottom wall 114 of the internal enclosure 110 .
- the cooling coils 132 may be manufactured from copper, aluminum, stainless steel, and/or still another material.
- the cooling coils 132 may be positioned at varying heights along the internal sidewalls 112 to facilitate providing differing cooling effects with the cooling assembly 130 .
- the cooling coils 132 are used in a refrigeration cycle to facilitate performing a cooling operation on food products stored within one or more of the food pans 30 .
- the cooling coils 132 may receive a working fluid (e.g., a refrigerant such as R-134a, etc.) in the refrigeration cycle.
- the working fluid may flow through the cooling coils 132 and absorb thermal energy (e.g., evaporation, etc.) from a surrounding environment, the food products, the internal sidewalls 112 , and/or the food pans 30 , reducing the temperatures thereof (e.g., to maintain a target temperature or target temperature range of the food products, etc.).
- the absorbed thermal energy (e.g., heat, etc.) may be rejected into the surrounding environment (e.g., room, air, etc.) through the remaining steps in the refrigeration cycle (e.g., compression, condensation, expansion, etc.).
- the cooling assembly 130 of FIGS. 2 and 4 may thereby be configured as an evaporative cooling refrigeration system.
- the cooling assembly 130 additionally or alternatively includes a different type of cooling element (e.g., a thermoelectric cooler, a Peltier device, a solid-state refrigeration system, etc.).
- the warming assembly 140 includes a heating element (e.g., an induction coil, a work coil, etc.), shown as heating coil 142 , positioned along the bottom wall 114 of the internal enclosure 110 .
- the heating coil 142 includes a portion, shown as curved portion 144 , that extends at least partially along the internal sidewalls 112 .
- the heating coil 142 may thereby be configured as a three-dimensional heating coil that extends in three directions or planes (i.e., horizontally along the bottom wall 114 in width and length, and vertically along the internal sidewalls 112 ).
- the heating coil 142 is configured as two-dimensional heating coil that extends in two directions or planes (i.e., horizontally along the bottom wall 114 in width and length).
- the warming assembly 140 includes a second heating element, shown as second heating coil 146 , positioned beneath the heating coil 142 such that the warming assembly 140 includes two layers of heating elements.
- the heating coil 142 and/or the second heating coil 146 are each a single, continuous coil.
- the single, continuous coil may be arranged in a zig-zag pattern, a square pattern, a circular pattern, a rectangular pattern, and/or still another pattern.
- the heating coil 142 and/or the second heating coil 146 each includes a plurality of discrete heating coils or an array of heating coils (e.g., a plurality of spaced coils, etc.).
- Each of the heating coils within the array may be individually controlled to facilitate providing varying amounts of thermal energy across the hot-cold well 10 (e.g., facilitates providing zoned control where a first zone is heated at a first temperature, a second zone is heated at a second temperature, etc.).
- the heating coil 142 and/or the second heating coil 146 may have a flat cross-sectional profile, a circular cross-sectional profile, an ovular cross-sectional profile, a square cross-sectional profile, a rectangular cross-sectional profile, and/or still another cross-sectional profile.
- the heating coil 142 and/or the second heating coil 146 are configured to facilitate performing a warming or heating operation on food products stored within one or more of the food pans 30 .
- the heating coil 142 and/or the second heating coil 146 may provide thermal energy (e.g., heat, etc.) to the food products positioned within the food pans 30 (e.g., to maintain a target temperature or target temperature range of the food products, etc.) through the bottom wall 114 and/or at least a portion of the internal sidewalls 112 .
- the heating coil 142 and/or the second heating coil 146 are induction coils.
- the inverters 150 are configured to regulate the power provided to the heating coil 142 and/or the second heating coil 146 to control the amount of thermal energy provided to the food pans 30 .
- the inverter 150 is a single inverter device that powers both the heating coil 142 and the second heating coil 146 .
- the inverter 150 includes a first inverter device that powers the first heating coil 142 and a second inverter device that powers the second heating coil 146 .
- the warming assembly 140 additionally or alternatively includes a different type of heating element (e.g., a strip heater, a Peltier device, a resistive heating element, a radiant heating element, a tubular element or other heating conduit that receives a heated working fluid, a blanket heating element, etc.).
- a different type of heating element e.g., a strip heater, a Peltier device, a resistive heating element, a radiant heating element, a tubular element or other heating conduit that receives a heated working fluid, a blanket heating element, etc.
- the warming and cooling system 100 includes a metal plate (e.g., a stainless steel plate, an aluminum plate, an aluminum/stainless steel alloy plate, a Currie point alloy plate, etc.), shown as thermal distribution plate 149 .
- the thermal distribution plate 149 may be positioned above the bottom wall 114 (e.g., such that the bottom wall 114 is positioned between the thermal distribution plate 149 and the heating coil 142 , etc.) and/or below the bottom wall 114 (e.g., such that the thermal distribution plate 149 is positioned between the bottom wall 114 and the heating coil 142 , etc.).
- the thermal distribution plate 149 is configured to spread the thermal energy (e.g., heat, etc.) provided by the warming assembly 140 (e.g., the heating coil 142 , the second heating coil 146 , etc.) more evenly across the bottom surface of the food pans 30 (e.g., eliminate hot spots, provide a consistent amount of thermal energy across the bottom of the food pans 30 , etc.).
- the thermal energy e.g., heat, etc.
- the warming assembly 140 e.g., the heating coil 142 , the second heating coil 146 , etc.
- the cooling coils 132 , the heating coil 142 , and/or the second heating coil 146 are embedded into a block (e.g., an aluminum block, etc.) that is shaped to correspond with the internal enclosure 110 and/or the food pans 30 .
- the block replaces the internal enclosure 110 .
- the block may facilitate transferring thermal energy to or removing thermal energy from the food pans 30 directly between the block and the food pans 30 .
- the warming and cooling system 100 does not include the cooling coils 132 . Rather, the warming and cooling system 100 includes a plurality of dual-functioning thermal elements, shown as Peltier devices 134 .
- the Peltier devices 134 have dual functionality such that they are capable of providing both a heating operation and a cooling operation (e.g., a solid state refrigeration system, etc.).
- the inverters 150 e.g., a separate inverter, a second inverter, a third inverter, etc.
- the Peltier devices 134 may be capable of being powered individually such that zoned heating and/or cooling may be provided.
- the Peltier devices 134 may be variously positioned about the internal enclosure 110 such that one or more Peltier devices 134 are positioned along and/or engage with one or more of the internal sidewalls 112 (e.g., between the sidewalls 22 of the base 20 and the internal sidewalls 112 of the internal enclosure 110 , etc.) and one or more Peltier devices 134 are positioned along and/or engage with the bottom wall 114 .
- the heating coil 142 defines an aperture, shown as aperture 148
- the bottom wall 114 includes a portion, shown as portion 118 , that is manufactured from a different material than the remainder of the bottom wall 114 .
- the portion 118 may be manufactured from the same or similar material as the internal sidewalls 112 (e.g., a metal, a metal alloy, etc.) or different than both the material of the internal sidewalls 112 and the bottom wall 114 .
- the aperture 148 is positioned to align with the portion 118 of the bottom wall 114 and receive at least a portion of a Peltier device 134 such that the Peltier device 134 extends through the aperture 148 and engages the portion 118 of the bottom wall 114 .
- the heating coil 142 defines a plurality of apertures 148 and the bottom wall 114 has a plurality of portions 118 spaced along the bottom wall 114 such that the warming and cooling system 100 may include a plurality of the Peltier devices 134 positioned along the bottom wall 114 .
- the Peltier devices 134 may provide the cooling operation alone and provide the heating operation either alone or in combination with the heating coil 142 (and/or the second heating coil 146 ).
- the air current generator 160 is positioned about the hot-cold well 10 and configured to facilitate providing an air current layer to the food pans 30 (e.g., within the temperature regulated cavity 120 , etc.) and/or across the tops of the food pans 30 .
- Providing the air current layer to the food pans 30 may facilitate providing convective heat transfer.
- Providing the air current layer across the tops of the food pans 30 may prevent contaminants from interacting with the food products within the food pans 30 .
- the humidifier 170 is positioned about the hot-cold well 10 and configured to facilitate providing moisture (i.e., humidity) to the air current layer and/or within the temperature regulated cavity 120 to increase the thermal capacity (e.g., the cooling capacity of the cooling assembly 130 , the cooling coils 132 , the Peltier devices 134 , etc.).
- moisture i.e., humidity
- the thermal capacity e.g., the cooling capacity of the cooling assembly 130 , the cooling coils 132 , the Peltier devices 134 , etc.
- the hot-cold well 10 includes a drain positioned within the internal enclosure 110 (e.g., within the bottom wall 114 , etc.) to facilitate cleaning and draining the temperature regulated cavity 120 (e.g., draining water, cleaning solutions, food products, etc. from the temperature regulated cavity 120 ).
- the bottom wall 114 is angled, sloped, or curved to improve the cleaning and draining of the temperature regulated cavity 120 .
- the sensors 180 may include one or more temperature sensors (e.g., a thermistor, etc.) positioned to facilitate monitoring the temperature of the cooling coils 132 , the Peltier devices 134 , the heating coils 142 , the internal sidewalls 112 , the bottom wall 114 , the temperature regulated cavity 120 , the food pans 30 , and/or the food products within the food cavities 32 of the food pans 30 .
- the sensors 180 may additionally or alternatively include one or more detection sensors positioned to detect the presence (or lack thereof) of a food pan 30 above a respective heating coil 142 or Peltier device 134 of the warming assembly 140 and/or proximate a respective cooling coil 132 or Peltier device 134 of the cooling assembly 130 .
- the detection of a respective food pan 30 may facilitate activating the warming assembly 140 and/or the cooling assembly 130 only in areas or zones where a food pan 30 is positioned.
- the detection sensors may include current sensors, infrared sensors, weight sensors, a switch (e.g., that is engaged by a food pan 30 when set into the pan cavity 26 , etc.), and/or still other detection sensors.
- the control unit 40 includes an interface, shown as user interface 42 , and a controller, shown as controller 50 .
- the controller 50 is configured to selectively engage, selectively disengage, control, and/or otherwise communicate with components of the hot-cold well 10 .
- the controller 50 is coupled to the user interface 42 and the warming and cooling system 100 (e.g., the cooling assembly 130 , the warming assembly 140 , the inverters 150 , the air current generator 160 , the humidifier 170 , the sensors 180 , etc.).
- the controller 50 is coupled to more or fewer components.
- the controller 50 may send and receive signals with the user interface 42 , the cooling assembly 130 , the warming assembly 140 , the inverters 150 , the air current generator 160 , the humidifier 170 , and/or the sensors 180 .
- the controller 50 may be implemented as a general-purpose processor, an application specific integrated circuit (ASIC), one or more field programmable gate arrays (FPGAs), a digital-signal-processor (DSP), circuits containing one or more processing components, circuitry for supporting a microprocessor, a group of processing components, or other suitable electronic processing components.
- the controller 50 includes a processing circuit 52 and a memory 54 .
- the processing circuit 52 may include an ASIC, one or more FPGAs, a DSP, circuits containing one or more processing components, circuitry for supporting a microprocessor, a group of processing components, or other suitable electronic processing components.
- the processing circuit 52 is configured to execute computer code stored in the memory 54 to facilitate the activities described herein.
- the memory 54 may be any volatile or non-volatile computer-readable storage medium capable of storing data or computer code relating to the activities described herein.
- the memory 54 includes computer code modules (e.g., executable code, object code, source code, script code, machine code, etc.) configured for execution by the processing circuit 52 .
- the user interface 42 facilitates communication between an operator (e.g., cook, chef, staff member, etc.) of the hot-cold well 10 and one or more components (e.g., the cooling assembly 130 , the warming assembly 140 , the inverters 150 , the air current generator 160 , the humidifier 170 , the sensors 180 , etc.) of the warming and cooling system 100 .
- the user interface 42 may include at least one of an interactive display, a touchscreen device, one or more buttons (e.g., a stop button configured to turn the unit off, buttons allowing a user to set a target temperature, buttons to turn a lighting element on and off, etc.), and switches.
- the user interface 42 includes a notification device (e.g., alarm, light, display, etc.) that notifies the operator when the hot-cold well 10 is on, off, in a standby mode, in a heating mode, and/or in a cooling mode.
- a display of the user interface shows a current temperature of the cooling coils 132 , the Peltier devices 134 , the heating coils 142 , the internal sidewalls 112 , the bottom wall 114 , the temperature regulated cavity 120 , the food pans 30 , and/or the food products within the food cavities 32 of the food pans 30 .
- the controller 50 is configured to receive temperature data from the sensors 180 regarding a temperature of the cooling coils 132 , the Peltier devices 134 , the heating coils 142 , the internal sidewalls 112 , the bottom wall 114 , the temperature regulated cavity 120 , the food pans 30 , and/or the food products within the food cavities 32 of the food pans 30 .
- the controller 50 may be configured to actively control the cooling assembly 130 , the warming assembly 140 , the inverters 150 , the air current generator 160 , and/or the humidifier 170 to regulate the temperature of the food products within the food pans 30 such that the temperature thereof is maintained at a current temperature or brought to a desired temperature.
- the controller 50 is configured to receive detection data from the sensors 180 regarding the presence (or lack thereof) of one or more food pans 30 disposed within the pan cavity 26 .
- the controller 50 may be configured to selectively activate and deactivate portions of the cooling assembly 130 (e.g., individual Peltier devices 134 , individual sections of the cooling coils 132 , etc.) and/or the warming assembly 140 (e.g., individual Peltier devices 134 , individual sections of the heating coils 142 and/or the second heating coils 146 , etc.) such that only portions of the cooling assembly 130 and/or the warming assembly 140 proximate (e.g., below, adjacent, etc.) the food pans 30 are activated (e.g., to provide zoned control, etc.).
- portions of the cooling assembly 130 e.g., individual Peltier devices 134 , individual sections of the cooling coils 132 , etc.
- the warming assembly 140 e.g., individual Peltier devices 134 , individual sections of the heating coils 142 and
- the controller 50 may be configured to provide zoned temperature control based on a user input received with the user interface 42 such that a first food pan 30 is thermally regulated at a first temperature (e.g., 90 degrees, etc.) and a second food pan 30 is thermally regulated at a second temperature (e.g., 40 degrees, 100 degrees, etc.).
- a first temperature e.g., 90 degrees, etc.
- a second temperature e.g., 40 degrees, 100 degrees, etc.
- the hot-cold well 10 additionally or alternatively includes a second temperature regulation unit, shown as single-zone warming or cooling system 200 .
- the single-zone warming or cooling system 200 may be used in combination with the warming and cooling system 100 or in place of the warming and cooling system 100 .
- the hot-cold well 10 includes a plurality of single-zone warming or cooling systems 200 (e.g., one for each full-sized food pan 30 , one for each one-third-sized food pan 30 , etc.).
- the single-zone warming or cooling system 200 includes a conduit, shown as coiled piping 202 ; a pump, shown as fluid pump 204 , configured to pump a working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the coiled piping 202 ; a thermal element, shown as thermal element 206 , positioned along the coiled piping 202 and configured to thermally regulate the working fluid; and a sensor, shown as temperature sensor 208 , positioned to facilitate monitoring the temperature of the working fluid, the coiled piping 202 , the temperature regulated cavity 120 , and/or associated food pan(s) 30 .
- a working fluid e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.
- a sensor shown as temperature sensor 208 , positioned to facilitate monitoring the temperature of the working fluid, the coiled piping 202 , the temperature
- the coiled piping 202 spans the entire temperature regulated cavity 120 (e.g., a single-pan cavity, a multi-pan cavity, etc.). In other embodiments, the coiled piping 202 spans only a portion of the temperature regulated cavity 120 such that the hot-cold well 10 may include a plurality of single-zone warming or cooling systems 200 (e.g., one associated with each full-sized food pan 30 , etc.).
- the coiled piping 202 may be positioned on the bottom and/or sides of the temperature regulated cavity 120 or a zone of the temperature regulated cavity 120 associated therewith.
- the coiled piping 202 may be manufactured from copper, stainless steel, or still another thermally conductive material.
- the thermal element 206 is a cooling element.
- the thermal element 206 may be or include a Peltier cooling element positioned within the coiled piping 202 (e.g., the working fluid flows over the thermal element 206 , etc.).
- the thermal element 206 may be another type of cooling element (e.g., a thermoelectric cooler, a solid-state refrigeration system, a heat exchanger used as part of a refrigeration system, positioned around the coiled piping 202 , etc.).
- the cooling element is configured to cool the working fluid to a desired temperature to thermally regulate the contents within associated food pans 30 .
- the thermal element 206 is a heating element.
- the thermal element 206 may be or include a tubular induction heating coil positioned around a portion of the coiled piping 202 .
- the thermal element 206 may be another type of heating element (e.g., a heat exchanger used as part of a heating system, a boiler, a Peltier device, etc.).
- the heating element is configured to heat the working fluid to a desired temperature to thermally regulate the contents within associated food pans 30 .
- the thermal element 206 is a dual-functioning thermal element (e.g., capable of providing both a heating operation and the cooling operation, a Peltier heating and cooling device, etc.).
- the hot-cold well 10 includes at least one single-zone warming or cooling system 200 having a cooling element and at least one single-zone warming or cooling system 200 having a heating element to facilitate providing cooling to one zone and heating to another zone of the temperature regulated cavity 120 .
- the hot-cold well 10 additionally or alternatively includes a third temperature regulation unit, shown as multi-zone warming or cooling system 300 .
- the multi-zone warming or cooling system 300 may be used in combination with the warming and cooling system 100 or in place of the warming and cooling system 100 .
- the hot-cold well 10 includes a plurality of multi-zone warming or cooling systems 300 (e.g., one for each full-sized food pan 30 , etc.).
- the multi-zone warming or cooling system 300 includes a plurality of warming or cooling assemblies, shown as first warming or cooling assembly 310 , second warming or cooling assembly 320 , and third warming or cooling assembly 330 .
- each of the first warming or cooling assembly 310 , the second warming or cooling assembly 320 , and the third warming or cooling assembly 330 is associated with a single, full-sized food pan 30 .
- first warming or cooling assembly 310 , the second warming or cooling assembly 320 , and the third warming or cooling assembly 330 are cooperatively associated with a single, full-sized food pan 30 such that each of the first warming or cooling assembly 310 , the second warming or cooling assembly 320 , and the third warming or cooling assembly 330 is associated with a single, one-third-sized food pan 30 .
- the multi-zone warming or cooling system 300 may be configured to provide variable heating and/or cooling to subzones within a respective zone associated with each of the first warming or cooling assembly 310 , the second warming or cooling assembly 320 , and the third warming or cooling assembly 330 , respectively (e.g., a zone defined by a single, full-sized food pan 30 is divided into three subzones, each associated with a single, one-third-sized food pan 30 , etc.).
- the multi-zone warming or cooling system 300 includes fewer or greater than three warming and cooling assemblies (e.g., two, four, five, etc.).
- the hot-cold well includes a plurality of multi-zone warming or cooling system 300 (e.g., one for each full-sized food pan 30 , etc.).
- the first warming or cooling assembly 310 includes a first conduit, shown as first coiled piping 312 ; a first pump, shown as first fluid pump 314 , configured to pump a first working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the first coiled piping 312 ; a first thermal element, shown as first thermal element 316 , positioned along the first coiled piping 312 and configured to thermally regulate the first working fluid; and a first sensor, shown as first temperature sensor 318 , positioned to facilitate monitoring the temperature of the first working fluid, the first coiled piping 312 , the temperature regulated cavity 120 , and/or associated food pan(s) 30 .
- a first working fluid e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.
- the second warming or cooling assembly 320 includes a second conduit, shown as second coiled piping 322 ; a second pump, shown as second fluid pump 324 , configured to pump a second working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the second coiled piping 322 ; a second thermal element, shown as second thermal element 326 , positioned along the second coiled piping 322 and configured to thermally regulate the second working fluid; and a second sensor, shown as second temperature sensor 328 , positioned to facilitate monitoring the temperature of the second working fluid, the second coiled piping 322 , the temperature regulated cavity 120 , and/or associated food pan(s) 30 .
- a second working fluid e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.
- the third warming or cooling assembly 330 includes a third conduit, shown as third coiled piping 332 ; a third pump, shown as third fluid pump 334 , configured to pump a third working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the third coiled piping 332 ; a third thermal element, shown as third thermal element 336 , positioned along the third coiled piping 332 and configured to thermally regulate the third working fluid; and a third sensor, shown as third temperature sensor 338 , positioned to facilitate monitoring the temperature of the third working fluid, the third coiled piping 332 , the temperature regulated cavity 120 , and/or associated food pan(s) 30 .
- a third working fluid e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.
- the first coiled piping 312 , the second coiled piping 322 , and/or the third coiled piping 332 may be positioned on the bottom and/or sides of the temperature regulated cavity 120 or a zone of the temperature regulated cavity 120 associated therewith.
- the first coiled piping 312 , the second coiled piping 322 , and/or the third coiled piping 332 may be manufactured from copper, stainless steel, or still another thermally conductive material.
- the multi-zone warming or cooling system 300 includes a single inverter 150 that drives each of the first thermal element 316 , the second thermal element 326 , and the third thermal element 336 .
- the multi-zone warming or cooling system 300 includes a plurality of inverters 150 , one for each of the first thermal element 316 , the second thermal element 326 , and the third thermal element 336 .
- the first thermal element 316 , the second thermal element 326 , and/or the third thermal element 336 are heating elements.
- the first thermal element 316 , the second thermal element 326 , and/or the third thermal element 336 may be or include a tubular induction heating coil positioned around a portion of the first coiled piping 312 , the second coiled piping 322 , and/or the third coiled piping 332 , respectively.
- the first thermal element 316 , the second thermal element 326 , and/or the third thermal element 336 may be another type of heating element (e.g., a heat exchanger used as part of a heating system, a boiler, a Peltier device, etc.).
- the heating elements are configured to heat the first working fluid, the second working fluid, and/or the third working fluid, respectively, to a desired temperature to thermally regulate the contents within associated food pans 30 .
- first thermal element 316 , the second thermal element 326 , and/or the third thermal element 336 are cooling elements.
- the first thermal element 316 , the second thermal element 326 , and/or the third thermal element 336 may be or include a Peltier cooling element positioned within the first coiled piping 312 , the second coiled piping 322 , and/or the third coiled piping 332 , respectively.
- the first thermal element 316 , the second thermal element 326 , and/or the third thermal element 336 may be another type of cooling element (e.g., a thermoelectric cooler, a solid-state refrigeration system, a heat exchanger used as part of a refrigeration system, positioned around the respective coiled piping, etc.).
- the cooling elements are configured to cool the first working fluid, the second working fluid, and/or the third working fluid, respectively, to a desired temperature to thermally regulate the contents within associated food pans 30 .
- the first thermal element 316 , the second thermal element 326 , and/or the third thermal element 336 are dual-functioning thermal elements (e.g., capable of providing both a heating operation and the cooling operation, a Peltier heating and cooling device, etc.).
- the hot-cold well 10 includes at least one multi-zone warming or cooling system 300 having heating elements and at least one multi-zone warming or cooling system 300 having cooling elements to facilitate providing heating to one zone and cooling to another zone of the temperature regulated cavity 120 .
- the hot-cold well 10 additionally or alternatively includes a fourth temperature regulation unit, shown as multi-zone warming and cooling system 400 .
- the multi-zone warming and cooling system 400 may be used in combination with the warming and cooling system 100 or in place of the warming and cooling system 100 .
- the hot-cold well 10 includes a plurality of multi-zone warming and cooling systems 400 (e.g., one for each full-sized food pan 30 , etc.).
- the multi-zone warming and cooling system 400 includes a combination of the single-zone warming or cooling system 200 and the multi-zone warming or cooling system 300 .
- the thermal element 206 of the single-zone warming or cooling system 200 is a cooling element and
- each of the first thermal element 316 , the second thermal element 326 , and the third thermal element 336 of the multi-zone warming or cooling system 300 is a heating element.
- the single-zone warming or cooling system 200 is configured to provide cooling to a respective zone of the hot-cold well 10
- the multi-zone warming or cooling system 300 is configured to provide variable heating to subzones of the respective zone of the hot-cold well 10 .
- the thermal element 206 of the single-zone warming or cooling system 200 is a heating element and (ii) each of the first thermal element 316 , the second thermal element 326 , and the third thermal element 336 of the multi-zone warming or cooling system 300 is a cooling element.
- the single-zone warming or cooling system 200 is configured to provide heating to a respective zone of the hot-cold well 10
- the multi-zone warming or cooling system 300 is configured to provide variable cooling to subzones of the respective zone of the hot-cold well 10 .
- the first coiled piping 312 , the second coiled piping 322 , and the third coiled piping 332 include a first portion, shown as first section 340 , a second portion, shown as second section 342 , and a third portion, shown as third section 344 , respectively, that the first thermal element 316 , the second thermal element 326 , and the third thermal element 336 are coupled to.
- the first section 340 of the first coiled piping 312 , the second section 342 of the second coiled piping 322 , and/or the third section 344 of the third coiled piping 332 are manufactured from a different material that the remainder of the first coiled piping 312 , the second coiled piping 322 , and/or the third coiled piping 332 , respectively (e.g., when the remainder of the first coiled piping 312 , the second coiled piping 322 , and/or the third coiled piping 332 is manufactured from copper, etc.).
- the first section 340 , the second section 342 , and/or the third section 344 may be manufactured from stainless steel.
- the user interface 42 of the hot-cold well 10 having the multi-zone warming and cooling system 400 is shown, according to an exemplary embodiment.
- the user interface 42 of the multi-zone warming and cooling system 400 includes a first portion, shown as power interface 60 , a second portion, shown as cooling interface 70 , and a third portion, shown as warming interface 80 .
- the power interface 60 includes a button, shown as power button 62 , and a pair of indicators, shown as cooling indicator 64 and warming indicator 66 .
- the power button 62 may facilitate turning the hot-cold well 10 on and off.
- the cooling indicator 64 may illuminate to indicate that the hot-cold well 10 is in a cooling mode.
- the warming indicator 66 may illuminate to indicate that the hot-cold well 10 is in a warming mode.
- the cooling interface 70 includes an adjuster, shown as cooling dial 72 and an indicator, shown as cooling activation indicator 74 .
- the cooling dial 72 may facilitate adjusting a cooling temperature of the hot-cold well 10 (e.g., of the single-zone warming or cooling system 200 , etc.).
- the cooling activation indicator 74 may illuminate to indicate a cooling system of the hot-cold well 10 is active.
- the warming interface 80 includes a first adjuster, shown as first warming dial 82 , a first indicator, shown as first warming activation indicator 83 , a second adjuster, shown as second warming dial 84 , a second indicator, shown as second warming activation indicator 85 , a third adjuster, shown as third warming dial 86 , and a third indicator, shown as third warming activation indicator 87 .
- the first warming dial 82 may facilitate adjusting a warming temperature of a first zone of the hot-cold well 10 (e.g., the first warming or cooling assembly 310 , etc.), the second warming dial 84 may facilitate adjusting a warming temperature of a second zone of the hot-cold well 10 (e.g., the second warming or cooling assembly 320 , etc.), and the third warming dial 86 may facilitate adjusting a warming temperature of a third zone of the hot-cold well 10 (e.g., the third warming or cooling assembly 330 , etc.).
- the first warming activation indicator 83 , the second warming activation indicator 85 , and the third warming activation indicator 87 may illuminate to indicate a respective zone of a warming system of the hot-cold well 10 is active.
- the cooling interface 70 facilitates independently controlling a plurality of cooling zones and/or the warming interface 80 facilitates controlling a single warming zone.
- the hot-cold well 10 additionally or alternatively includes a fifth temperature regulation unit, shown as single-zone, inline warming and cooling system 500 .
- the single-zone, inline warming and cooling system 500 may be used in combination with the warming and cooling system 100 or in place of the warming and cooling system 100 .
- the hot-cold well 10 includes a plurality of single-zone, inline warming and cooling systems 500 (e.g., one for each full-sized food pan 30 , one for each one-third-sized food pan 30 , etc.).
- the hot-cold well 10 includes any combination of the warming and cooling system 100 , the single-zone warming or cooling systems 200 , the multi-zone warming or cooling systems 300 , the multi-zone warming and cooling systems 400 , and the single-zone, inline warming and cooling systems 500 (e.g., different warming and/or cooling systems positioned to thermally regulate different zones of the temperature regulated cavity 120 , etc.).
- the single-zone, inline warming and cooling system 500 includes a conduit, shown as coiled piping 502 ; a pump, shown as fluid pump 504 , configured to pump a working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the coiled piping 502 ; a first thermal element, shown as cooling element 506 , positioned along the coiled piping 502 and configured to cool the working fluid; a second thermal element, shown as heating element 508 , positioned along the coiled piping 502 , in line with the cooling element 506 , and configured to heat the working fluid; and a sensor, shown as temperature sensor 510 , positioned to facilitate monitoring the temperature of the working fluid, the coiled piping 502 , the temperature regulated cavity 120 , and/or associated food pan(s) 30 .
- a working fluid e.g., water, a refrigerant, a water-glycol mixture
- the coiled piping 502 spans the entire temperature regulated cavity 120 (e.g., a single-pan cavity, a multi-pan cavity, etc.). In other embodiments, the coiled piping 502 spans only a portion of the temperature regulated cavity 120 such that the hot-cold well 10 may include a plurality of single-zone, inline warming and cooling systems 500 (e.g., one associated with each full-sized food pan 30 , etc.).
- the coiled piping 502 may be positioned on the bottom and/or sides of the temperature regulated cavity 120 or a zone of the temperature regulated cavity 120 associated therewith.
- the coiled piping 502 may be manufactured from copper, stainless steel, or still another thermally conductive material. As shown in FIG.
- the coiled piping 502 includes a portion, shown as section 512 , that the cooling element 506 and/or the heating element 508 are coupled to.
- the section 512 of the coiled piping 502 is manufactured from a different material than the remainder of the coiled piping 502 (e.g., when the remainder of the coiled piping 502 is manufactured from copper, etc.).
- the section 512 may be manufactured from stainless steel.
- the cooling element 506 may be or include a Peltier cooling element positioned within the coiled piping 502 (e.g., the working fluid flows over the cooling element 506 , etc.).
- the cooling element 506 may be another type of cooling element (e.g., a thermoelectric cooler, a solid-state refrigeration system, a heat exchanger used as part of a refrigeration system, positioned around the coiled piping 502 , etc.).
- the cooling element 506 is configured to cool the working fluid to a desired temperature to thermally regulate the contents within associated food pans 30 .
- the heating element 508 may be or include a tubular induction heating coil positioned around the section 512 of the coiled piping 502 .
- the heating element 508 may be another type of heating element (e.g., a heat exchanger used as part of a heating system, a boiler, a Peltier device, etc.).
- the heating element 508 is configured to heat the working fluid to a desired temperature to thermally regulate the contents within associated food pans 30 .
- the user interface 42 of the hot-cold well 10 having the single-zone, inline warming and cooling system 500 is shown, according to an exemplary embodiment.
- the user interface 42 has a control interface 90 including a button, shown as power button 92 , an adjuster, shown as temperature dial 94 , and a pair of indicators, shown as cooling indicator 96 and warming indicator 98 .
- the power button 92 may facilitate turning the hot-cold well 10 on and off.
- the temperature dial 94 may facilitate adjusting a cooling temperature or a warming temperature of the hot-cold well 10 (e.g., of the cooling element 506 , of the heating element 508 , etc.).
- the cooling indicator 96 may illuminate to indicate that the hot-cold well 10 is in a cooling mode (e.g., the cooling element 506 is active, etc.).
- the warming indicator 98 may illuminate to indicate that the hot-cold well 10 is in a warming mode (e.g., the heating element 508 is active, etc.).
- Coupled means the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable, releasable, etc.). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.
- the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term “or” means one, some, or all of the elements in the list.
- Conjunctive language such as the phrase “at least one of X, Y, and Z,” unless specifically stated otherwise, is otherwise understood with the context as used in general to convey that an item, term, etc. may be either X, Y, Z, X and Y, X and Z, Y and Z, or X, Y, and Z (i.e., any combination of X, Y, and Z).
- Conjunctive language is not generally intended to imply that certain embodiments require at least one of X, at least one of Y, and at least one of Z to each be present, unless otherwise indicated.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
Abstract
A food pan well includes a base defining an internal cavity and a temperature regulating system disposed within the internal cavity. The base is configured to support a food pan such that the food pan is selectively suspendable within the internal cavity. The temperature regulating system includes a cooling assembly configured to facilitate cooling at least a sidewall of the food pan and a warming assembly configured to facilitate warming at least a bottom surface of the food pan.
Description
- This application is a continuation of U.S. patent application Ser. No. 15/984,002, filed May 18, 2018, which claims the benefit of U.S. Provisional Patent Application No. 62/508,816, filed May 19, 2017, both of which are incorporated herein by reference in their entireties.
- Food products may need to be maintained at a certain temperature (e.g., before being served to a customer, etc.). For example, many food products need to be maintained in a certain temperature range to provide a desired eating experience or to comply with food safety regulations. Food products are traditionally maintained at a desired temperature using a unit that provides a temperature-controlled environment. By way of example, food pans may be typically heated in one set of wells and cooled in another set of wells of a temperature regulation unit. However, such split temperature regulation units require a large footprint and do not allow a food service operator to easily change the configuration of the food serving line or preparation line.
- One embodiment relates to a food pan well. The food pan well includes a base defining an internal cavity and a temperature regulating system disposed within the internal cavity. The base is configured to support a food pan such that the food pan is selectively suspendable within the internal cavity. The temperature regulating system includes a cooling assembly configured to facilitate cooling at least a sidewall of the food pan and a warming assembly configured to facilitate warming at least a bottom surface of the food pan.
- Another embodiment relates to a food pan well. The food pan well includes a base defining an internal cavity and a temperature regulating system disposed within the internal cavity. The base is configured to support a food pan such that the food pan is selectively suspendable within the internal cavity. The temperature regulating system includes a cooling assembly and a warming assembly. The cooling assembly includes at least one of a cooling conduit or an air current generator. The cooling conduit is configured to receive a thermally regulated working fluid. The cooling conduit is positioned proximate a sidewall of the food pan when the food pan is suspended within the internal cavity. The air current generator is configured to provide a cooled air current within the internal cavity. The warming assembly includes an induction heating coil and an inverter. The induction heating coil is positioned beneath a bottom wall of the food pan when the food pan is suspended within the internal cavity. The inverter is configured to regulate power provided to the induction heating coil.
- Still another embodiment relates to a food pan well. The food pan well includes a base and a temperature regulating system. The base defines an internal cavity. The base is configured to support a plurality of food pans such that the plurality of food pans are selectively suspendable within the internal cavity simultaneously. The temperature regulating system includes a cooling assembly and a warming assembly. The cooling assembly includes a plurality of cooling conduits positioned within the internal cavity and a plurality of cooling pumps. Each of the plurality of cooling conduits is positioned proximate a sidewall of a respective one of the plurality of food pans when the respective one of the plurality of food pans is suspended within the internal cavity. Each of the plurality of cooling pumps is associated with one of the plurality of cooling conduits and configured to drive a working fluid therethrough. The warming assembly includes a plurality of induction heating coils positioned within the internal cavity and an inverter. Each of the plurality of induction heating coils is positioned beneath a respective one of the plurality of food pans when the respective one of the plurality of food pans is suspended within the internal cavity. The inverter is configured to regulate power provided to each of the plurality of induction heating coils.
- The invention is capable of other embodiments and of being carried out in various ways. Alternative exemplary embodiments relate to other features and combinations of features as may be recited herein.
- The disclosure will become more fully understood from the following detailed description, taken in conjunction with the accompanying figures, wherein like reference numerals refer to like elements, in which:
-
FIG. 1 is a perspective view of a temperature regulation unit, according to an exemplary embodiment; -
FIG. 2 is a cross-sectional view of a warming and cooling system of the temperature regulation unit ofFIG. 1 , according to an exemplary embodiment; -
FIG. 3 is a cross-sectional view of a warming and cooling system of the temperature regulation unit ofFIG. 1 , according to another exemplary embodiment; -
FIG. 4 is a cross-sectional view of a warming and cooling system of the temperature regulation unit ofFIG. 1 , according to still another exemplary embodiment; -
FIG. 5 is a schematic diagram of the temperature regulation unit ofFIG. 1 , according to an exemplary embodiment; -
FIG. 6 is a schematic view of a single-zone warming or cooling system of the temperature regulation unit ofFIG. 1 , according to an exemplary embodiment; -
FIG. 7 is a schematic view of a multi-zone warming or cooling system of the temperature regulation unit ofFIG. 1 , according to an exemplary embodiment; -
FIG. 8 is a schematic view of a combined, multi-zone warming and cooling system of the temperature regulation unit ofFIG. 1 , according to an exemplary embodiment; -
FIGS. 9 and 10 are various views of user interfaces of the combined, multi-zone warming and cooling system ofFIG. 8 , according to various exemplary embodiments; -
FIG. 11 is a schematic view of a combined, single-zone, inline warming and cooling system of the temperature regulation unit ofFIG. 1 , according to an exemplary embodiment; and -
FIGS. 12-14 are various views of user interfaces of the combined, single-zone, inline warming and cooling system ofFIG. 11 , according to various exemplary embodiments. - Before turning to the figures, which illustrate the exemplary embodiments in detail, it should be understood that the present application is not limited to the details or methodology set forth in the description or illustrated in the figures. It should also be understood that the terminology is for the purpose of description only and should not be regarded as limiting.
- According to an exemplary embodiment, a temperature regulation unit (e.g., a hot-cold well, a hot-cold food pan holder, etc.) includes a warming assembly that utilizes heating mechanisms (e.g., induction heaters, radiant heaters, Peltier devices, blanket heaters, strip heaters, etc.) and/or a cooling assembly including cooling mechanisms (e.g., an evaporative gas cooling system, a Peltier cooling system, cooling coils, Peltier devices, etc.). The temperature regulation unit may be capable of switching between a heating operation and a cooling operation, may be capable of providing a heating operation to a first zone and a cooling operation to a second zone simultaneously, and/or may be capable of providing varying degrees of heating and/or cooling to two or more zones simultaneously. An electronic control unit may control and regulate the temperature of one or more food pans received by the temperature regulation unit. Such a temperature regulation unit may advantageously save space in kitchen operations, save time, and/or provide a more sanitary environment. Traditional hot-cold wells require water systems to provide steam to heat food pans which may be large and unsanitary. The temperature regulation unit may also include an adjustable base that accommodates pans of different depths.
- According to the exemplary embodiment shown in
FIGS. 1-5 , a temperature regulation unit, shown as hot-cold well 10, includes a housing or enclosure, shown asbase 20; a control unit, shown ascontrol unit 40; and a temperature regulation system, shown as warming andcooling system 100. As shown inFIG. 1 , theuser interface 42, thecontroller 50, and the warming andcooling system 100 are at least partially disposed within and/or coupled to thebase 20. According to an exemplary embodiment, thebase 20 is made from a non-metallic material. As shown inFIG. 1 , thebase 20 has a plurality of sidewalls, shown assidewalls 22, that define the outer shape of thebase 20. According to the exemplary embodiment shown inFIG. 1 , thebase 20 is rectangular in shape. In other embodiments, thebase 20 is otherwise shaped (e.g., square, circular, etc.). As shown inFIG. 1 , thebase 20 includes a surface, shown astop surface 24, that extends around the periphery of thesidewalls 22. Thesidewalls 22 and thetop surface 24 cooperatively define a cavity, shown aspan cavity 26, that selectively receives one or more pans (e.g., stainless steel food pans, etc.), shown as food pans 30, and houses the warming andcooling system 100. As shown inFIG. 1 , thebase 20 includes a protrusion, shown asledge 28, that extends around the periphery of thesidewalls 22 and is at least partially recessed into thepan cavity 26. In other embodiments, theledge 28 extends inward from thesidewall 22. Theledge 28 is positioned to provide a surface for the food pans 30 to rest on such that the food pans 30 are suspended within thepan cavity 26. - As shown in
FIG. 1 , thebase 20 is configured to support two half-sized food pans 30. The base 20 may also support a single, full-sized food pan 30. In other embodiments, thebase 20 is sized to receive three or more half-sized food pans 30 and/or two or more full-sized food pans 30. In some embodiments, a single, full-sized food pan 30 is replaceable with three on-third-sized food pans 30. As shown inFIG. 1 , the food pans 30 define a cavity, shown asfood cavity 32. Thefood cavities 32 of the food pans 30 may have various depths to accommodate (e.g., receive, hold, store, etc.) different types of food products. In some embodiments, thebase 20 is adjustable such that food pans 30 having variousdepth food cavities 32 may be received by thebase 20. By way of example, thefood cavities 32 of the food pans 30 may facilitate a user (e.g., chef, cook, staff, owner, etc.) in separating or arranging various items (e.g., hot and cold items, solid and liquid items, align sandwiches or ice cream bars, etc.). For example, onefood cavity 32 may receive a liquid-based food product (e.g., soup, etc.), and anotherfood cavity 32 may receive a solid-based food product (e.g., sandwiches, pasta, etc.). As another example, onefood cavity 32 may receive a first food product that is desirable when warm and anotherfood cavity 32 may receive a second food product that is desirable when cold. - As shown in
FIGS. 2-5 , the warming andcooling system 100 includes an enclosure, shown asinternal enclosure 110; a first thermal assembly, shown as coolingassembly 130; a second thermal assembly, shown as warmingassembly 140; and one or more power devices, shown asinverters 150. In some embodiments, the warming andcooling system 100 additionally includes an air current device (e.g., a fan, a blower, etc.), shown as aircurrent generator 160; a humidifier device, shown ashumidifier 170; and/or one or more sensors, shown assensors 180. - As shown in
FIGS. 2-4 , theinternal enclosure 110 includes a bottom surface, shown as abottom wall 114, and a plurality of sidewalls, shown asinternal sidewalls 112, that extend around the periphery of thebottom wall 114. As shown inFIGS. 2 and 3 , thebottom wall 114 at least partially extends upward along the periphery thereof (e.g., forms at least a portion of theinternal sidewalls 112, etc.). In other embodiments, thebottom wall 114 is flat. As shown inFIGS. 2-4 , theinternal sidewalls 112 and thebottom wall 114 cooperatively define an internal cavity, shown as temperatureregulated cavity 120. The temperatureregulated cavity 120 is configured to receive the food pans 30 when the food pans 30 are inserted within thepan cavity 26 of the base 20 such that theinternal enclosure 110 surrounds at least a portion of the food pans 30. According to an exemplary embodiment, theinternal sidewalls 112 are manufactured from a first material and thebottom wall 114 is manufactured from a different, second material. According to an exemplary embodiment, theinternal sidewalls 112 are manufactured from a metal or a metal alloy, and thebottom wall 114 is manufactured from a plastic or a polymer material. In some embodiments, theinternal sidewalls 112 and/or thebottom wall 114 are manufactured from another type of material (e.g., a ceramic material, etc.). In other embodiments, theinternal sidewalls 112 and thebottom wall 114 are manufactured from the same material. - According to an exemplary embodiment, the warming and
cooling system 100 is configured to facilitate heating and/or cooling the contents stored within thefood cavities 32 of the food pans 30. In some embodiments, the warming andcooling system 100 is configured to facilitate differentially heating and/or cooling the food pans 30 received within the hot-cold well 10. By way of example, onefood pan 30 may be heated to a first temperature (e.g., 90 degrees Fahrenheit, etc.) and asecond food pan 30 may be heated to a second, different temperature (e.g., 120 degrees Fahrenheit, etc.). By way of another example, onefood pan 30 may be cooled to a first temperature (e.g., 45 degrees Fahrenheit, etc.) and asecond food pan 30 may be cooled to a second, different temperature (e.g., 30 degrees Fahrenheit, etc.). By way of yet another example, onefood pan 30 may be heated to a first temperature (e.g., 90 degrees Fahrenheit, etc.) and asecond food pan 30 may be cooled to a second, different temperature (e.g., 30 degrees Fahrenheit, etc.). - As shown in
FIGS. 2 and 4 , the coolingassembly 130 includes a plurality of cooling elements, shown as cooling coils 132, positioned along and around the periphery of theinternal sidewalls 112 of theinternal enclosure 110. The cooling coils 132 may thereby be positioned between thesidewalls 22 of thebase 20 and theinternal sidewalls 112 of theinternal enclosure 110. In some embodiments, the cooling coils 132 are additionally or alternatively positioned along thebottom wall 114 of theinternal enclosure 110. The cooling coils 132 may be manufactured from copper, aluminum, stainless steel, and/or still another material. In some embodiments, the cooling coils 132 may be positioned at varying heights along theinternal sidewalls 112 to facilitate providing differing cooling effects with the coolingassembly 130. - According to an exemplary embodiment, the cooling coils 132 are used in a refrigeration cycle to facilitate performing a cooling operation on food products stored within one or more of the food pans 30. By way of example, the cooling coils 132 may receive a working fluid (e.g., a refrigerant such as R-134a, etc.) in the refrigeration cycle. The working fluid may flow through the cooling coils 132 and absorb thermal energy (e.g., evaporation, etc.) from a surrounding environment, the food products, the
internal sidewalls 112, and/or the food pans 30, reducing the temperatures thereof (e.g., to maintain a target temperature or target temperature range of the food products, etc.). The absorbed thermal energy (e.g., heat, etc.) may be rejected into the surrounding environment (e.g., room, air, etc.) through the remaining steps in the refrigeration cycle (e.g., compression, condensation, expansion, etc.). The coolingassembly 130 ofFIGS. 2 and 4 may thereby be configured as an evaporative cooling refrigeration system. In other embodiments, the coolingassembly 130 additionally or alternatively includes a different type of cooling element (e.g., a thermoelectric cooler, a Peltier device, a solid-state refrigeration system, etc.). - As shown in
FIGS. 2 and 3 , the warmingassembly 140 includes a heating element (e.g., an induction coil, a work coil, etc.), shown asheating coil 142, positioned along thebottom wall 114 of theinternal enclosure 110. As shown inFIGS. 2 and 3 , theheating coil 142 includes a portion, shown ascurved portion 144, that extends at least partially along theinternal sidewalls 112. Theheating coil 142 may thereby be configured as a three-dimensional heating coil that extends in three directions or planes (i.e., horizontally along thebottom wall 114 in width and length, and vertically along the internal sidewalls 112). In other embodiments, theheating coil 142 is configured as two-dimensional heating coil that extends in two directions or planes (i.e., horizontally along thebottom wall 114 in width and length). As shown inFIG. 4 , the warmingassembly 140 includes a second heating element, shown assecond heating coil 146, positioned beneath theheating coil 142 such that the warmingassembly 140 includes two layers of heating elements. - In one embodiment, the
heating coil 142 and/or thesecond heating coil 146 are each a single, continuous coil. The single, continuous coil may be arranged in a zig-zag pattern, a square pattern, a circular pattern, a rectangular pattern, and/or still another pattern. In other embodiments, theheating coil 142 and/or thesecond heating coil 146 each includes a plurality of discrete heating coils or an array of heating coils (e.g., a plurality of spaced coils, etc.). Each of the heating coils within the array may be individually controlled to facilitate providing varying amounts of thermal energy across the hot-cold well 10 (e.g., facilitates providing zoned control where a first zone is heated at a first temperature, a second zone is heated at a second temperature, etc.). Theheating coil 142 and/or thesecond heating coil 146 may have a flat cross-sectional profile, a circular cross-sectional profile, an ovular cross-sectional profile, a square cross-sectional profile, a rectangular cross-sectional profile, and/or still another cross-sectional profile. - According to an exemplary embodiment, the
heating coil 142 and/or thesecond heating coil 146 are configured to facilitate performing a warming or heating operation on food products stored within one or more of the food pans 30. By way of example, theheating coil 142 and/or thesecond heating coil 146 may provide thermal energy (e.g., heat, etc.) to the food products positioned within the food pans 30 (e.g., to maintain a target temperature or target temperature range of the food products, etc.) through thebottom wall 114 and/or at least a portion of theinternal sidewalls 112. According to an exemplary embodiment, theheating coil 142 and/or thesecond heating coil 146 are induction coils. Theinverters 150 are configured to regulate the power provided to theheating coil 142 and/or thesecond heating coil 146 to control the amount of thermal energy provided to the food pans 30. In one embodiment, theinverter 150 is a single inverter device that powers both theheating coil 142 and thesecond heating coil 146. In another embodiment, theinverter 150 includes a first inverter device that powers thefirst heating coil 142 and a second inverter device that powers thesecond heating coil 146. In other embodiments, the warmingassembly 140 additionally or alternatively includes a different type of heating element (e.g., a strip heater, a Peltier device, a resistive heating element, a radiant heating element, a tubular element or other heating conduit that receives a heated working fluid, a blanket heating element, etc.). - In some embodiments, as shown in
FIGS. 2-4 , the warming andcooling system 100 includes a metal plate (e.g., a stainless steel plate, an aluminum plate, an aluminum/stainless steel alloy plate, a Currie point alloy plate, etc.), shown asthermal distribution plate 149. Thethermal distribution plate 149 may be positioned above the bottom wall 114 (e.g., such that thebottom wall 114 is positioned between thethermal distribution plate 149 and theheating coil 142, etc.) and/or below the bottom wall 114 (e.g., such that thethermal distribution plate 149 is positioned between thebottom wall 114 and theheating coil 142, etc.). According to an exemplary embodiment, thethermal distribution plate 149 is configured to spread the thermal energy (e.g., heat, etc.) provided by the warming assembly 140 (e.g., theheating coil 142, thesecond heating coil 146, etc.) more evenly across the bottom surface of the food pans 30 (e.g., eliminate hot spots, provide a consistent amount of thermal energy across the bottom of the food pans 30, etc.). - In some embodiments, the cooling coils 132, the
heating coil 142, and/or thesecond heating coil 146 are embedded into a block (e.g., an aluminum block, etc.) that is shaped to correspond with theinternal enclosure 110 and/or the food pans 30. In some embodiments, the block replaces theinternal enclosure 110. The block may facilitate transferring thermal energy to or removing thermal energy from the food pans 30 directly between the block and the food pans 30. - As shown in
FIG. 3 , the warming andcooling system 100 does not include the cooling coils 132. Rather, the warming andcooling system 100 includes a plurality of dual-functioning thermal elements, shown asPeltier devices 134. According to an exemplary embodiment, thePeltier devices 134 have dual functionality such that they are capable of providing both a heating operation and a cooling operation (e.g., a solid state refrigeration system, etc.). The inverters 150 (e.g., a separate inverter, a second inverter, a third inverter, etc.) may be configured to regulate the power provided to the Peltier devices 134 (e.g., by a DC power supply, etc.) to control the amount of thermal energy provided to or removed from the food pans 30. ThePeltier devices 134 may be capable of being powered individually such that zoned heating and/or cooling may be provided. - The
Peltier devices 134 may be variously positioned about theinternal enclosure 110 such that one or morePeltier devices 134 are positioned along and/or engage with one or more of the internal sidewalls 112 (e.g., between thesidewalls 22 of thebase 20 and theinternal sidewalls 112 of theinternal enclosure 110, etc.) and one or morePeltier devices 134 are positioned along and/or engage with thebottom wall 114. As shown inFIG. 3 , theheating coil 142 defines an aperture, shown asaperture 148, and thebottom wall 114 includes a portion, shown asportion 118, that is manufactured from a different material than the remainder of thebottom wall 114. By way of example, theportion 118 may be manufactured from the same or similar material as the internal sidewalls 112 (e.g., a metal, a metal alloy, etc.) or different than both the material of theinternal sidewalls 112 and thebottom wall 114. As shown inFIG. 3 , theaperture 148 is positioned to align with theportion 118 of thebottom wall 114 and receive at least a portion of aPeltier device 134 such that thePeltier device 134 extends through theaperture 148 and engages theportion 118 of thebottom wall 114. In some embodiments, theheating coil 142 defines a plurality ofapertures 148 and thebottom wall 114 has a plurality ofportions 118 spaced along thebottom wall 114 such that the warming andcooling system 100 may include a plurality of thePeltier devices 134 positioned along thebottom wall 114. ThePeltier devices 134 may provide the cooling operation alone and provide the heating operation either alone or in combination with the heating coil 142 (and/or the second heating coil 146). - According to an exemplary embodiment, the air
current generator 160 is positioned about the hot-cold well 10 and configured to facilitate providing an air current layer to the food pans 30 (e.g., within the temperature regulatedcavity 120, etc.) and/or across the tops of the food pans 30. Providing the air current layer to the food pans 30 may facilitate providing convective heat transfer. Providing the air current layer across the tops of the food pans 30 may prevent contaminants from interacting with the food products within the food pans 30. According to an exemplary embodiment, thehumidifier 170 is positioned about the hot-cold well 10 and configured to facilitate providing moisture (i.e., humidity) to the air current layer and/or within the temperature regulatedcavity 120 to increase the thermal capacity (e.g., the cooling capacity of the coolingassembly 130, the cooling coils 132, thePeltier devices 134, etc.). - In some embodiments, the hot-
cold well 10 includes a drain positioned within the internal enclosure 110 (e.g., within thebottom wall 114, etc.) to facilitate cleaning and draining the temperature regulated cavity 120 (e.g., draining water, cleaning solutions, food products, etc. from the temperature regulated cavity 120). In some embodiments, thebottom wall 114 is angled, sloped, or curved to improve the cleaning and draining of the temperature regulatedcavity 120. - The
sensors 180 may include one or more temperature sensors (e.g., a thermistor, etc.) positioned to facilitate monitoring the temperature of the cooling coils 132, thePeltier devices 134, the heating coils 142, theinternal sidewalls 112, thebottom wall 114, the temperature regulatedcavity 120, the food pans 30, and/or the food products within thefood cavities 32 of the food pans 30. Thesensors 180 may additionally or alternatively include one or more detection sensors positioned to detect the presence (or lack thereof) of afood pan 30 above arespective heating coil 142 orPeltier device 134 of the warmingassembly 140 and/or proximate arespective cooling coil 132 orPeltier device 134 of the coolingassembly 130. The detection of arespective food pan 30 may facilitate activating the warmingassembly 140 and/or thecooling assembly 130 only in areas or zones where afood pan 30 is positioned. The detection sensors may include current sensors, infrared sensors, weight sensors, a switch (e.g., that is engaged by afood pan 30 when set into thepan cavity 26, etc.), and/or still other detection sensors. - As shown in
FIGS. 1 and 5 , thecontrol unit 40 includes an interface, shown asuser interface 42, and a controller, shown ascontroller 50. In one embodiment, thecontroller 50 is configured to selectively engage, selectively disengage, control, and/or otherwise communicate with components of the hot-cold well 10. As shown inFIG. 5 , thecontroller 50 is coupled to theuser interface 42 and the warming and cooling system 100 (e.g., the coolingassembly 130, the warmingassembly 140, theinverters 150, the aircurrent generator 160, thehumidifier 170, thesensors 180, etc.). In other embodiments, thecontroller 50 is coupled to more or fewer components. By way of example, thecontroller 50 may send and receive signals with theuser interface 42, the coolingassembly 130, the warmingassembly 140, theinverters 150, the aircurrent generator 160, thehumidifier 170, and/or thesensors 180. - The
controller 50 may be implemented as a general-purpose processor, an application specific integrated circuit (ASIC), one or more field programmable gate arrays (FPGAs), a digital-signal-processor (DSP), circuits containing one or more processing components, circuitry for supporting a microprocessor, a group of processing components, or other suitable electronic processing components. According to the exemplary embodiment shown inFIG. 5 , thecontroller 50 includes aprocessing circuit 52 and amemory 54. Theprocessing circuit 52 may include an ASIC, one or more FPGAs, a DSP, circuits containing one or more processing components, circuitry for supporting a microprocessor, a group of processing components, or other suitable electronic processing components. In some embodiments, theprocessing circuit 52 is configured to execute computer code stored in thememory 54 to facilitate the activities described herein. Thememory 54 may be any volatile or non-volatile computer-readable storage medium capable of storing data or computer code relating to the activities described herein. According to an exemplary embodiment, thememory 54 includes computer code modules (e.g., executable code, object code, source code, script code, machine code, etc.) configured for execution by theprocessing circuit 52. - According to an exemplary embodiment, the
user interface 42 facilitates communication between an operator (e.g., cook, chef, staff member, etc.) of the hot-cold well 10 and one or more components (e.g., the coolingassembly 130, the warmingassembly 140, theinverters 150, the aircurrent generator 160, thehumidifier 170, thesensors 180, etc.) of the warming andcooling system 100. By way of example, theuser interface 42 may include at least one of an interactive display, a touchscreen device, one or more buttons (e.g., a stop button configured to turn the unit off, buttons allowing a user to set a target temperature, buttons to turn a lighting element on and off, etc.), and switches. In one embodiment, theuser interface 42 includes a notification device (e.g., alarm, light, display, etc.) that notifies the operator when the hot-cold well 10 is on, off, in a standby mode, in a heating mode, and/or in a cooling mode. In some embodiments, a display of the user interface shows a current temperature of the cooling coils 132, thePeltier devices 134, the heating coils 142, theinternal sidewalls 112, thebottom wall 114, the temperature regulatedcavity 120, the food pans 30, and/or the food products within thefood cavities 32 of the food pans 30. - According to an exemplary embodiment, the
controller 50 is configured to receive temperature data from thesensors 180 regarding a temperature of the cooling coils 132, thePeltier devices 134, the heating coils 142, theinternal sidewalls 112, thebottom wall 114, the temperature regulatedcavity 120, the food pans 30, and/or the food products within thefood cavities 32 of the food pans 30. Thecontroller 50 may be configured to actively control the coolingassembly 130, the warmingassembly 140, theinverters 150, the aircurrent generator 160, and/or thehumidifier 170 to regulate the temperature of the food products within the food pans 30 such that the temperature thereof is maintained at a current temperature or brought to a desired temperature. - According to an exemplary embodiment, the
controller 50 is configured to receive detection data from thesensors 180 regarding the presence (or lack thereof) of one or more food pans 30 disposed within thepan cavity 26. By way of example, thecontroller 50 may be configured to selectively activate and deactivate portions of the cooling assembly 130 (e.g.,individual Peltier devices 134, individual sections of the cooling coils 132, etc.) and/or the warming assembly 140 (e.g.,individual Peltier devices 134, individual sections of the heating coils 142 and/or the second heating coils 146, etc.) such that only portions of the coolingassembly 130 and/or the warmingassembly 140 proximate (e.g., below, adjacent, etc.) the food pans 30 are activated (e.g., to provide zoned control, etc.). Thecontroller 50 may be configured to provide zoned temperature control based on a user input received with theuser interface 42 such that afirst food pan 30 is thermally regulated at a first temperature (e.g., 90 degrees, etc.) and asecond food pan 30 is thermally regulated at a second temperature (e.g., 40 degrees, 100 degrees, etc.). - According to the exemplary embodiment shown in
FIG. 6 , the hot-cold well 10 additionally or alternatively includes a second temperature regulation unit, shown as single-zone warming orcooling system 200. The single-zone warming orcooling system 200 may be used in combination with the warming andcooling system 100 or in place of the warming andcooling system 100. In some embodiments, the hot-cold well 10 includes a plurality of single-zone warming or cooling systems 200 (e.g., one for each full-sized food pan 30, one for each one-third-sized food pan 30, etc.). - As shown in
FIG. 6 , the single-zone warming orcooling system 200 includes a conduit, shown as coiledpiping 202; a pump, shown asfluid pump 204, configured to pump a working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the coiledpiping 202; a thermal element, shown asthermal element 206, positioned along the coiledpiping 202 and configured to thermally regulate the working fluid; and a sensor, shown astemperature sensor 208, positioned to facilitate monitoring the temperature of the working fluid, the coiledpiping 202, the temperature regulatedcavity 120, and/or associated food pan(s) 30. In one embodiment, the coiledpiping 202 spans the entire temperature regulated cavity 120 (e.g., a single-pan cavity, a multi-pan cavity, etc.). In other embodiments, the coiledpiping 202 spans only a portion of the temperature regulatedcavity 120 such that the hot-cold well 10 may include a plurality of single-zone warming or cooling systems 200 (e.g., one associated with each full-sized food pan 30, etc.). The coiledpiping 202 may be positioned on the bottom and/or sides of the temperature regulatedcavity 120 or a zone of the temperature regulatedcavity 120 associated therewith. The coiledpiping 202 may be manufactured from copper, stainless steel, or still another thermally conductive material. - In one embodiment, the
thermal element 206 is a cooling element. By way of example, thethermal element 206 may be or include a Peltier cooling element positioned within the coiled piping 202 (e.g., the working fluid flows over thethermal element 206, etc.). By way of another example, thethermal element 206 may be another type of cooling element (e.g., a thermoelectric cooler, a solid-state refrigeration system, a heat exchanger used as part of a refrigeration system, positioned around the coiledpiping 202, etc.). According to an exemplary embodiment, the cooling element is configured to cool the working fluid to a desired temperature to thermally regulate the contents within associated food pans 30. - In another embodiment, the
thermal element 206 is a heating element. By way of example, thethermal element 206 may be or include a tubular induction heating coil positioned around a portion of the coiledpiping 202. By way of another example, thethermal element 206 may be another type of heating element (e.g., a heat exchanger used as part of a heating system, a boiler, a Peltier device, etc.). According to an exemplary embodiment, the heating element is configured to heat the working fluid to a desired temperature to thermally regulate the contents within associated food pans 30. In some embodiments, thethermal element 206 is a dual-functioning thermal element (e.g., capable of providing both a heating operation and the cooling operation, a Peltier heating and cooling device, etc.). In some embodiments, the hot-cold well 10 includes at least one single-zone warming orcooling system 200 having a cooling element and at least one single-zone warming orcooling system 200 having a heating element to facilitate providing cooling to one zone and heating to another zone of the temperature regulatedcavity 120. - According to the exemplary embodiment shown in
FIG. 7 , the hot-cold well 10 additionally or alternatively includes a third temperature regulation unit, shown as multi-zone warming orcooling system 300. The multi-zone warming orcooling system 300 may be used in combination with the warming andcooling system 100 or in place of the warming andcooling system 100. In some embodiments, the hot-cold well 10 includes a plurality of multi-zone warming or cooling systems 300 (e.g., one for each full-sized food pan 30, etc.). - As shown in
FIG. 7 , the multi-zone warming orcooling system 300 includes a plurality of warming or cooling assemblies, shown as first warming or coolingassembly 310, second warming or coolingassembly 320, and third warming or coolingassembly 330. In one embodiment, each of the first warming or coolingassembly 310, the second warming or coolingassembly 320, and the third warming or coolingassembly 330 is associated with a single, full-sized food pan 30. In another embodiment, the first warming or coolingassembly 310, the second warming or coolingassembly 320, and the third warming or coolingassembly 330 are cooperatively associated with a single, full-sized food pan 30 such that each of the first warming or coolingassembly 310, the second warming or coolingassembly 320, and the third warming or coolingassembly 330 is associated with a single, one-third-sized food pan 30. In such an embodiment, the multi-zone warming orcooling system 300 may be configured to provide variable heating and/or cooling to subzones within a respective zone associated with each of the first warming or coolingassembly 310, the second warming or coolingassembly 320, and the third warming or coolingassembly 330, respectively (e.g., a zone defined by a single, full-sized food pan 30 is divided into three subzones, each associated with a single, one-third-sized food pan 30, etc.). In other embodiments, the multi-zone warming orcooling system 300 includes fewer or greater than three warming and cooling assemblies (e.g., two, four, five, etc.). In some embodiments, the hot-cold well includes a plurality of multi-zone warming or cooling system 300 (e.g., one for each full-sized food pan 30, etc.). - As shown in
FIG. 7 , the first warming or coolingassembly 310 includes a first conduit, shown as firstcoiled piping 312; a first pump, shown as firstfluid pump 314, configured to pump a first working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the firstcoiled piping 312; a first thermal element, shown as firstthermal element 316, positioned along the firstcoiled piping 312 and configured to thermally regulate the first working fluid; and a first sensor, shown asfirst temperature sensor 318, positioned to facilitate monitoring the temperature of the first working fluid, the firstcoiled piping 312, the temperature regulatedcavity 120, and/or associated food pan(s) 30. - As shown in
FIG. 7 , the second warming or coolingassembly 320 includes a second conduit, shown as secondcoiled piping 322; a second pump, shown as secondfluid pump 324, configured to pump a second working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the secondcoiled piping 322; a second thermal element, shown as secondthermal element 326, positioned along the secondcoiled piping 322 and configured to thermally regulate the second working fluid; and a second sensor, shown assecond temperature sensor 328, positioned to facilitate monitoring the temperature of the second working fluid, the secondcoiled piping 322, the temperature regulatedcavity 120, and/or associated food pan(s) 30. - As shown in
FIG. 7 , the third warming or coolingassembly 330 includes a third conduit, shown as thirdcoiled piping 332; a third pump, shown as thirdfluid pump 334, configured to pump a third working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the thirdcoiled piping 332; a third thermal element, shown as thirdthermal element 336, positioned along the thirdcoiled piping 332 and configured to thermally regulate the third working fluid; and a third sensor, shown asthird temperature sensor 338, positioned to facilitate monitoring the temperature of the third working fluid, the thirdcoiled piping 332, the temperature regulatedcavity 120, and/or associated food pan(s) 30. - The first
coiled piping 312, the secondcoiled piping 322, and/or the thirdcoiled piping 332 may be positioned on the bottom and/or sides of the temperature regulatedcavity 120 or a zone of the temperature regulatedcavity 120 associated therewith. The firstcoiled piping 312, the secondcoiled piping 322, and/or the thirdcoiled piping 332 may be manufactured from copper, stainless steel, or still another thermally conductive material. In one embodiment, the multi-zone warming orcooling system 300 includes asingle inverter 150 that drives each of the firstthermal element 316, the secondthermal element 326, and the thirdthermal element 336. In another embodiment, the multi-zone warming orcooling system 300 includes a plurality ofinverters 150, one for each of the firstthermal element 316, the secondthermal element 326, and the thirdthermal element 336. - In one embodiment, the first
thermal element 316, the secondthermal element 326, and/or the thirdthermal element 336 are heating elements. By way of example, the firstthermal element 316, the secondthermal element 326, and/or the thirdthermal element 336 may be or include a tubular induction heating coil positioned around a portion of the firstcoiled piping 312, the secondcoiled piping 322, and/or the thirdcoiled piping 332, respectively. By way of another example, the firstthermal element 316, the secondthermal element 326, and/or the thirdthermal element 336 may be another type of heating element (e.g., a heat exchanger used as part of a heating system, a boiler, a Peltier device, etc.). According to an exemplary embodiment, the heating elements are configured to heat the first working fluid, the second working fluid, and/or the third working fluid, respectively, to a desired temperature to thermally regulate the contents within associated food pans 30. - In another embodiment, the first
thermal element 316, the secondthermal element 326, and/or the thirdthermal element 336 are cooling elements. By way of example, the firstthermal element 316, the secondthermal element 326, and/or the thirdthermal element 336 may be or include a Peltier cooling element positioned within the firstcoiled piping 312, the secondcoiled piping 322, and/or the thirdcoiled piping 332, respectively. By way of another example, the firstthermal element 316, the secondthermal element 326, and/or the thirdthermal element 336 may be another type of cooling element (e.g., a thermoelectric cooler, a solid-state refrigeration system, a heat exchanger used as part of a refrigeration system, positioned around the respective coiled piping, etc.). According to an exemplary embodiment, the cooling elements are configured to cool the first working fluid, the second working fluid, and/or the third working fluid, respectively, to a desired temperature to thermally regulate the contents within associated food pans 30. In some embodiments, the firstthermal element 316, the secondthermal element 326, and/or the thirdthermal element 336 are dual-functioning thermal elements (e.g., capable of providing both a heating operation and the cooling operation, a Peltier heating and cooling device, etc.). In some embodiments, the hot-cold well 10 includes at least one multi-zone warming orcooling system 300 having heating elements and at least one multi-zone warming orcooling system 300 having cooling elements to facilitate providing heating to one zone and cooling to another zone of the temperature regulatedcavity 120. - According to the exemplary embodiment shown in
FIG. 8 , the hot-cold well 10 additionally or alternatively includes a fourth temperature regulation unit, shown as multi-zone warming andcooling system 400. The multi-zone warming andcooling system 400 may be used in combination with the warming andcooling system 100 or in place of the warming andcooling system 100. In some embodiments, the hot-cold well 10 includes a plurality of multi-zone warming and cooling systems 400 (e.g., one for each full-sized food pan 30, etc.). - As shown in
FIG. 8 , the multi-zone warming andcooling system 400 includes a combination of the single-zone warming orcooling system 200 and the multi-zone warming orcooling system 300. In one embodiment, (i) thethermal element 206 of the single-zone warming orcooling system 200 is a cooling element and (ii) each of the firstthermal element 316, the secondthermal element 326, and the thirdthermal element 336 of the multi-zone warming orcooling system 300 is a heating element. In such an embodiment, the single-zone warming orcooling system 200 is configured to provide cooling to a respective zone of the hot-cold well 10, while the multi-zone warming orcooling system 300 is configured to provide variable heating to subzones of the respective zone of the hot-cold well 10. In another embodiment, (i) thethermal element 206 of the single-zone warming orcooling system 200 is a heating element and (ii) each of the firstthermal element 316, the secondthermal element 326, and the thirdthermal element 336 of the multi-zone warming orcooling system 300 is a cooling element. In such an embodiment, the single-zone warming orcooling system 200 is configured to provide heating to a respective zone of the hot-cold well 10, while the multi-zone warming orcooling system 300 is configured to provide variable cooling to subzones of the respective zone of the hot-cold well 10. - As shown in
FIG. 8 , the firstcoiled piping 312, the secondcoiled piping 322, and the thirdcoiled piping 332 include a first portion, shown asfirst section 340, a second portion, shown assecond section 342, and a third portion, shown asthird section 344, respectively, that the firstthermal element 316, the secondthermal element 326, and the thirdthermal element 336 are coupled to. In some embodiments, thefirst section 340 of the firstcoiled piping 312, thesecond section 342 of the secondcoiled piping 322, and/or thethird section 344 of the thirdcoiled piping 332 are manufactured from a different material that the remainder of the firstcoiled piping 312, the secondcoiled piping 322, and/or the thirdcoiled piping 332, respectively (e.g., when the remainder of the firstcoiled piping 312, the secondcoiled piping 322, and/or the thirdcoiled piping 332 is manufactured from copper, etc.). By way of example, thefirst section 340, thesecond section 342, and/or thethird section 344 may be manufactured from stainless steel. - Referring to
FIGS. 9 and 10 , theuser interface 42 of the hot-cold well 10 having the multi-zone warming andcooling system 400 is shown, according to an exemplary embodiment. Theuser interface 42 of the multi-zone warming andcooling system 400 includes a first portion, shown aspower interface 60, a second portion, shown as coolinginterface 70, and a third portion, shown as warminginterface 80. As shown inFIGS. 9 and 10 , thepower interface 60 includes a button, shown aspower button 62, and a pair of indicators, shown as coolingindicator 64 and warmingindicator 66. Thepower button 62 may facilitate turning the hot-cold well 10 on and off. The coolingindicator 64 may illuminate to indicate that the hot-cold well 10 is in a cooling mode. The warmingindicator 66 may illuminate to indicate that the hot-cold well 10 is in a warming mode. As shown inFIGS. 9 and 10 , the coolinginterface 70 includes an adjuster, shown as coolingdial 72 and an indicator, shown as coolingactivation indicator 74. Thecooling dial 72 may facilitate adjusting a cooling temperature of the hot-cold well 10 (e.g., of the single-zone warming orcooling system 200, etc.). The coolingactivation indicator 74 may illuminate to indicate a cooling system of the hot-cold well 10 is active. - As shown in
FIGS. 9 and 10 , the warminginterface 80 includes a first adjuster, shown asfirst warming dial 82, a first indicator, shown as firstwarming activation indicator 83, a second adjuster, shown assecond warming dial 84, a second indicator, shown as secondwarming activation indicator 85, a third adjuster, shown asthird warming dial 86, and a third indicator, shown as thirdwarming activation indicator 87. Thefirst warming dial 82 may facilitate adjusting a warming temperature of a first zone of the hot-cold well 10 (e.g., the first warming or coolingassembly 310, etc.), thesecond warming dial 84 may facilitate adjusting a warming temperature of a second zone of the hot-cold well 10 (e.g., the second warming or coolingassembly 320, etc.), and thethird warming dial 86 may facilitate adjusting a warming temperature of a third zone of the hot-cold well 10 (e.g., the third warming or coolingassembly 330, etc.). The firstwarming activation indicator 83, the secondwarming activation indicator 85, and the thirdwarming activation indicator 87 may illuminate to indicate a respective zone of a warming system of the hot-cold well 10 is active. In other embodiments, the coolinginterface 70 facilitates independently controlling a plurality of cooling zones and/or the warminginterface 80 facilitates controlling a single warming zone. - According to the exemplary embodiment shown in
FIG. 11 , the hot-cold well 10 additionally or alternatively includes a fifth temperature regulation unit, shown as single-zone, inline warming andcooling system 500. The single-zone, inline warming andcooling system 500 may be used in combination with the warming andcooling system 100 or in place of the warming andcooling system 100. In some embodiments, the hot-cold well 10 includes a plurality of single-zone, inline warming and cooling systems 500 (e.g., one for each full-sized food pan 30, one for each one-third-sized food pan 30, etc.). In some embodiments, the hot-cold well 10 includes any combination of the warming andcooling system 100, the single-zone warming or coolingsystems 200, the multi-zone warming or coolingsystems 300, the multi-zone warming and coolingsystems 400, and the single-zone, inline warming and cooling systems 500 (e.g., different warming and/or cooling systems positioned to thermally regulate different zones of the temperature regulatedcavity 120, etc.). - As shown in
FIG. 11 , the single-zone, inline warming andcooling system 500 includes a conduit, shown as coiledpiping 502; a pump, shown asfluid pump 504, configured to pump a working fluid (e.g., water, a refrigerant, a water-glycol mixture, low viscosity oil, etc.) through the coiledpiping 502; a first thermal element, shown as coolingelement 506, positioned along the coiledpiping 502 and configured to cool the working fluid; a second thermal element, shown asheating element 508, positioned along the coiledpiping 502, in line with thecooling element 506, and configured to heat the working fluid; and a sensor, shown astemperature sensor 510, positioned to facilitate monitoring the temperature of the working fluid, the coiledpiping 502, the temperature regulatedcavity 120, and/or associated food pan(s) 30. - In one embodiment, the coiled
piping 502 spans the entire temperature regulated cavity 120 (e.g., a single-pan cavity, a multi-pan cavity, etc.). In other embodiments, the coiledpiping 502 spans only a portion of the temperature regulatedcavity 120 such that the hot-cold well 10 may include a plurality of single-zone, inline warming and cooling systems 500 (e.g., one associated with each full-sized food pan 30, etc.). The coiledpiping 502 may be positioned on the bottom and/or sides of the temperature regulatedcavity 120 or a zone of the temperature regulatedcavity 120 associated therewith. The coiledpiping 502 may be manufactured from copper, stainless steel, or still another thermally conductive material. As shown inFIG. 11 , the coiledpiping 502 includes a portion, shown assection 512, that thecooling element 506 and/or theheating element 508 are coupled to. In some embodiments, thesection 512 of the coiledpiping 502 is manufactured from a different material than the remainder of the coiled piping 502 (e.g., when the remainder of the coiledpiping 502 is manufactured from copper, etc.). By way of example, thesection 512 may be manufactured from stainless steel. - By way of example, the
cooling element 506 may be or include a Peltier cooling element positioned within the coiled piping 502 (e.g., the working fluid flows over thecooling element 506, etc.). By way of another example, thecooling element 506 may be another type of cooling element (e.g., a thermoelectric cooler, a solid-state refrigeration system, a heat exchanger used as part of a refrigeration system, positioned around the coiledpiping 502, etc.). According to an exemplary embodiment, thecooling element 506 is configured to cool the working fluid to a desired temperature to thermally regulate the contents within associated food pans 30. - By way of example, the
heating element 508 may be or include a tubular induction heating coil positioned around thesection 512 of the coiledpiping 502. By way of another example, theheating element 508 may be another type of heating element (e.g., a heat exchanger used as part of a heating system, a boiler, a Peltier device, etc.). According to an exemplary embodiment, theheating element 508 is configured to heat the working fluid to a desired temperature to thermally regulate the contents within associated food pans 30. - Referring to
FIGS. 12-14 , theuser interface 42 of the hot-cold well 10 having the single-zone, inline warming andcooling system 500 is shown, according to an exemplary embodiment. As shown inFIGS. 12-14 , theuser interface 42 has acontrol interface 90 including a button, shown aspower button 92, an adjuster, shown astemperature dial 94, and a pair of indicators, shown as coolingindicator 96 and warmingindicator 98. Thepower button 92 may facilitate turning the hot-cold well 10 on and off. Thetemperature dial 94 may facilitate adjusting a cooling temperature or a warming temperature of the hot-cold well 10 (e.g., of thecooling element 506, of theheating element 508, etc.). The coolingindicator 96 may illuminate to indicate that the hot-cold well 10 is in a cooling mode (e.g., thecooling element 506 is active, etc.). The warmingindicator 98 may illuminate to indicate that the hot-cold well 10 is in a warming mode (e.g., theheating element 508 is active, etc.). - As utilized herein, the terms “approximately”, “about”, “substantially”, and similar terms are intended to have a broad meaning in harmony with the common and accepted usage by those of ordinary skill in the art to which the subject matter of this disclosure pertains. It should be understood by those of skill in the art who review this disclosure that these terms are intended to allow a description of certain features described and claimed without restricting the scope of these features to the precise numerical ranges provided. Accordingly, these terms should be interpreted as indicating that insubstantial or inconsequential modifications or alterations of the subject matter described and claimed are considered to be within the scope of the invention as recited in the appended claims.
- It should be noted that the term “exemplary” as used herein to describe various embodiments is intended to indicate that such embodiments are possible examples, representations, and/or illustrations of possible embodiments (and such term is not intended to connote that such embodiments are necessarily extraordinary or superlative examples).
- The terms “coupled,” “connected,” and the like, as used herein, mean the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable, releasable, etc.). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.
- References herein to the positions of elements (e.g., “top,” “bottom,” “above,” “below,” etc.) are merely used to describe the orientation of various elements in the figures. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and that such variations are intended to be encompassed by the present disclosure.
- Also, the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term “or” means one, some, or all of the elements in the list. Conjunctive language such as the phrase “at least one of X, Y, and Z,” unless specifically stated otherwise, is otherwise understood with the context as used in general to convey that an item, term, etc. may be either X, Y, Z, X and Y, X and Z, Y and Z, or X, Y, and Z (i.e., any combination of X, Y, and Z). Thus, such conjunctive language is not generally intended to imply that certain embodiments require at least one of X, at least one of Y, and at least one of Z to each be present, unless otherwise indicated.
- It is important to note that the construction and arrangement of the elements of the systems and methods as shown in the exemplary embodiments are illustrative only. Although only a few embodiments of the present disclosure have been described in detail, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, elements shown as integrally formed may be constructed of multiple parts or elements. It should be noted that the elements and/or assemblies of the components described herein may be constructed from any of a wide variety of materials that provide sufficient strength or durability, in any of a wide variety of colors, textures, and combinations. Accordingly, all such modifications are intended to be included within the scope of the present inventions. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the preferred and other exemplary embodiments without departing from scope of the present disclosure or from the spirit of the appended claims.
Claims (20)
1. A food pan well comprising:
a base defining an internal cavity, the base configured to support a food pan such that the food pan is selectively suspendable within the internal cavity; and
a temperature regulating system disposed within the internal cavity, the temperature regulating system including:
a cooling assembly configured to facilitate cooling at least a sidewall of the food pan; and
a warming assembly configured to facilitate warming at least a bottom surface of the food pan.
2. The food pan well of claim 1 , wherein the cooling assembly includes:
a cooling conduit configured to receive a cooling working fluid; and
a cooling pump configured to drive the cooling working fluid through the cooling conduit.
3. The food pan well of claim 2 , wherein the food pan is a first food pan, the cooling conduit is a first cooling conduit associated with the first food pan, and the cooling pump is a first cooling pump, wherein the base is configured to support a second food pan at the same time as the first food pan, and wherein the cooling assembly includes a second cooling conduit associated with the second food pan and a second pump associated with the second cooling conduit.
4. The food pan well of claim 1 , wherein the warming assembly includes:
a warming conduit configured to receive a warming working fluid; and
a warming pump configured to drive the warming working fluid through the warming conduit.
5. The food pan well of claim 4 , wherein the food pan is a first food pan, the warming conduit is a first warming conduit associated with the first food pan, and the warming pump is a first warming pump, wherein the base is configured to support a second food pan at the same time as the first food pan, and wherein the warming assembly includes a second warming conduit associated with the second food pan and a second pump associated with the second warming conduit.
6. The food pan well of claim 1 , wherein the warming assembly includes:
an induction heating coil; and
an inverter configured to regulate power provided to the induction heating coil.
7. The food pan well of claim 6 , wherein the food pan is a first food pan, the induction heating coil is a first induction heating coil associated with the first food pan, wherein the base is configured to support a second food pan at the same time as the first food pan, wherein the warming assembly includes a second induction heating coil associated with the second food pan, and wherein the inverter is configured to regulate the power provided to the first induction heating coil and the second induction heating coil.
8. The food pan well of claim 6 , wherein the food pan is a first food pan, the induction heating coil is a first induction heating coil associated with the first food pan, and the inverter is a first inverter associated with the first induction heating coil, wherein the base is configured to support a second food pan at the same time as the first food pan, wherein the warming assembly includes a second induction heating coil associated with the second food pan and a second inverter associated with the second induction heating coil, and wherein the second inverter is configured to regulate the power provided to the second induction heating coil independent of the first inverter.
9. The food pan well of claim 1 , wherein the cooling assembly includes an air current generator configured to provide a cooled air current within the internal cavity.
10. The food pan well of claim 9 , wherein the air current generator is configured to provide the cooled air current across a top of the food pan.
11. The food pan well of claim 1 , wherein the food pan is a first food pan having a first depth, wherein the base is configured to support a second food pan having a second depth, and wherein the second food pan is interchangeable with the first food pan.
12. The food pan well of claim 1 , further comprising a thermal distribution plate positioned within the internal cavity, the thermal distribution plate configured to spread thermal energy provided by the warming assembly evenly across the bottom surface of the food pan.
13. The food pan well of claim 1 , wherein the temperature regulating system includes an internal enclosure positioned within the internal cavity, the internal enclosure including a bottom wall and a peripheral wall extending around the bottom wall, the bottom wall and the peripheral wall cooperatively defining a temperature regulating cavity that at least partially receives the food pan, wherein at least one of the cooling assembly or the warming assembly is positioned outside of the temperature regulating cavity.
14. The food pan well of claim 13 , wherein the bottom wall is manufactured from a first material and the peripheral wall is manufactured from a second material different than the first material.
15. A food pan well comprising:
a base defining an internal cavity, the base configured to support a food pan such that the food pan is selectively suspendable within the internal cavity; and
a temperature regulating system disposed within the internal cavity, the temperature regulating system including:
a cooling assembly including at least one of:
a cooling conduit configured to receive a thermally regulated working fluid, the cooling conduit positioned proximate a sidewall of the food pan when the food pan is suspended within the internal cavity; or
an air current generator configured to provide a cooled air current within the internal cavity; and
a warming assembly including:
an induction heating coil positioned beneath a bottom wall of the food pan when the food pan is suspended within the internal cavity; and
an inverter configured to regulate power provided to the induction heating coil.
16. The food pan well of claim 15 , wherein the cooling assembly includes the cooling conduit.
17. The food pan well of claim 15 , wherein the cooling assembly includes the air current generator.
18. The food pan well of claim 17 , wherein the wherein the air current generator is configured to provide the cooled air current across a top of the food pan when the food pan is suspended within the internal cavity.
19. The food pan well of claim 15 , wherein the cooling assembly includes the cooling conduit and the air current generator.
20. A food pan well comprising:
a base defining an internal cavity, the base configured to support a plurality of food pans such that the plurality of food pans are selectively suspendable within the internal cavity simultaneously; and
a temperature regulating system including:
a cooling assembly including:
a plurality of cooling conduits positioned within the internal cavity, each of the plurality of cooling conduits positioned proximate a sidewall of a respective one of the plurality of food pans when the respective one of the plurality of food pans is suspended within the internal cavity; and
a plurality of cooling pumps, each of the plurality of cooling pumps associated with one of the plurality of cooling conduits and configured to drive a working fluid therethrough; and
a warming assembly including:
a plurality of induction heating coils positioned within the internal cavity, each of the plurality of induction heating coils positioned beneath a respective one of the plurality of food pans when the respective one of the plurality of food pans is suspended within the internal cavity; and
an inverter configured to regulate power provided to each of the plurality of induction heating coils.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/209,585 US20210204754A1 (en) | 2017-05-19 | 2021-03-23 | Hot and cold holding system |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762508816P | 2017-05-19 | 2017-05-19 | |
US15/984,002 US11000157B2 (en) | 2017-05-19 | 2018-05-18 | Hot and cold holding system |
US17/209,585 US20210204754A1 (en) | 2017-05-19 | 2021-03-23 | Hot and cold holding system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/984,002 Continuation US11000157B2 (en) | 2017-05-19 | 2018-05-18 | Hot and cold holding system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20210204754A1 true US20210204754A1 (en) | 2021-07-08 |
Family
ID=64269762
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/984,002 Active 2038-06-13 US11000157B2 (en) | 2017-05-19 | 2018-05-18 | Hot and cold holding system |
US17/209,585 Pending US20210204754A1 (en) | 2017-05-19 | 2021-03-23 | Hot and cold holding system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/984,002 Active 2038-06-13 US11000157B2 (en) | 2017-05-19 | 2018-05-18 | Hot and cold holding system |
Country Status (1)
Country | Link |
---|---|
US (2) | US11000157B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11576485B2 (en) * | 2019-05-08 | 2023-02-14 | Illinois Tool Works Inc. | Food preparation table and associated food pan with thermowell |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019169236A1 (en) * | 2018-03-01 | 2019-09-06 | The Steelstone Group, LLC | Cooling multi-cooker |
GB2593468B (en) * | 2020-03-23 | 2022-04-13 | Equip Line Ltd | An apparatus for heating a pot of food or beverage |
US20220099363A1 (en) * | 2020-09-25 | 2022-03-31 | Duke Manufacturing Co. | Food holding apparatus |
US20220095836A1 (en) * | 2020-09-25 | 2022-03-31 | Duke Manufacturing Co. | Food holding apparatus |
US11912465B2 (en) | 2021-01-27 | 2024-02-27 | Duke Manufacturing Co. | Liner for food receiver of food holding apparatus |
USD1005781S1 (en) | 2021-01-29 | 2023-11-28 | Duke Manufacturing Co. | Liner for a food holding well |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6295820B1 (en) * | 2000-03-14 | 2001-10-02 | Delta T, Llc | Fruit chiller |
US20110005241A1 (en) * | 2009-07-13 | 2011-01-13 | Zittel David R | Cooling mechanism for use with a food processing system |
US20110277644A1 (en) * | 2010-05-17 | 2011-11-17 | The Vollrath Company, L.L.C. | Hot-and-cold serving station |
US20130248517A1 (en) * | 2012-03-21 | 2013-09-26 | Hyunwook Moon | Induction heating cooking apparatus and control method thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4823554A (en) * | 1987-04-22 | 1989-04-25 | Leonard Trachtenberg | Vehicle thermoelectric cooling and heating food and drink appliance |
US9814331B2 (en) * | 2010-11-02 | 2017-11-14 | Ember Technologies, Inc. | Heated or cooled dishware and drinkware |
WO2018013679A1 (en) | 2016-07-12 | 2018-01-18 | Bi-Polar Holding Company LLC | Food service apparatus with heating and cooling systems |
-
2018
- 2018-05-18 US US15/984,002 patent/US11000157B2/en active Active
-
2021
- 2021-03-23 US US17/209,585 patent/US20210204754A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6295820B1 (en) * | 2000-03-14 | 2001-10-02 | Delta T, Llc | Fruit chiller |
US20110005241A1 (en) * | 2009-07-13 | 2011-01-13 | Zittel David R | Cooling mechanism for use with a food processing system |
US20110277644A1 (en) * | 2010-05-17 | 2011-11-17 | The Vollrath Company, L.L.C. | Hot-and-cold serving station |
US20130248517A1 (en) * | 2012-03-21 | 2013-09-26 | Hyunwook Moon | Induction heating cooking apparatus and control method thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11576485B2 (en) * | 2019-05-08 | 2023-02-14 | Illinois Tool Works Inc. | Food preparation table and associated food pan with thermowell |
Also Published As
Publication number | Publication date |
---|---|
US11000157B2 (en) | 2021-05-11 |
US20180333006A1 (en) | 2018-11-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20210204754A1 (en) | Hot and cold holding system | |
US20200397175A1 (en) | Cooking apparatus using liquid bath | |
US5921096A (en) | Modular temperature maintaining food receptacle system | |
US3780794A (en) | Food table | |
US9795253B2 (en) | Multi-well food presentation modules | |
US5421246A (en) | Enclosure having a rack for heating or cooling food products | |
US6539846B2 (en) | Apparatus for delivering meals at an appropriate temperature, particularly for use in hospitals | |
US9016192B2 (en) | Hot-and-cold serving station | |
US11607036B2 (en) | Food service apparatus with peltier heating and cooling systems | |
US20190162485A1 (en) | Hot and cold shelf assembly with replaceable heating elements | |
US20040140304A1 (en) | Baby bottle chiller/warmer and method of use | |
US6735958B2 (en) | System for holding food in a ready-to-serve state | |
US5966961A (en) | Apparatus for heating and/or refrigerating food in general | |
EP3855097A1 (en) | System and method for temperature control of refrigerator with convertible compartment | |
JP2015161441A (en) | Cool temperature storage device | |
KR101845950B1 (en) | Multiple-function type food cooking utensils and Having a function of water purifier | |
JP2017113324A (en) | Kitchen counter | |
US6127659A (en) | Food warmer | |
US20240060701A1 (en) | Refrigerated appliance with ducted air flow | |
US20240060712A1 (en) | Refrigerated appliance with automatically adjustable setpoint | |
KR960003710Y1 (en) | Device to keep foods hot | |
KR200228447Y1 (en) | A stand for distributing meal which can keep cold and warm with refrigerants | |
US20210270521A1 (en) | Controlled thawing cabinet | |
US20240130558A1 (en) | Cooking appliance and heating arrangement therefor | |
JP4471518B2 (en) | Heating control device for food cart |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HATCO CORPORATION, WISCONSIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BASSILL, NICK;SHAH, ISHAN;STOECKEL, BRAD;AND OTHERS;SIGNING DATES FROM 20201026 TO 20201102;REEL/FRAME:055685/0259 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |