WO2006035395A1 - A cooling device - Google Patents
A cooling device Download PDFInfo
- Publication number
- WO2006035395A1 WO2006035395A1 PCT/IB2005/053161 IB2005053161W WO2006035395A1 WO 2006035395 A1 WO2006035395 A1 WO 2006035395A1 IB 2005053161 W IB2005053161 W IB 2005053161W WO 2006035395 A1 WO2006035395 A1 WO 2006035395A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- energy storage
- thermal energy
- cooling device
- phase changing
- wall
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/065—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
Definitions
- This invention relates to a cooling device comprising one or more thermal energy storage units having a phase changing material.
- insulation material preferably the polyurethane foam is applied between the inner and outer walls of the body.
- cooling devices there are one or more vacuum insulated panels (VIPS) and insulation materials in between the inner and outer walls for the purpose of increasing insulation, thus decreasing the energy consumption and increasing the rigidity of the cooling device cabin.
- VIPS vacuum insulated panels
- PCM phase changing materials
- phase changing materials show eutectic characteristics - having a lower melting point than the ingredients composing them -.
- Phase changing materials change phase at certain temperatures depending on their chemical characteristics. These materials freeze at a certain temperature depending on their chemical characteristic while the cooling cycle is active, i.e. while the compressor operates, and absorb the heat from the surroundings while the cooling cycle is passive, i.e. while the compressor doesn't operate, thus enabling the surroundings to stay cool for a longer period of time than the solutions when phase changing materials are not utilized.
- the most important characteristic of phase changing materials is their perfect thermal conductivity.
- the US Patent no. 4528439 a description is given where the inner walls of a thermally insulated case are formed by phase changing material.
- a mixture of water, gelatin, sodium benzoate and biocide is utilized as the phase changing material.
- the European Patent no. 583909 a de ⁇ scription is given for increasing the operation yield and thus the cooling capacity of a compressor by incorporating phase changing material around the evaporator or inside the compartment.
- the object of the present invention is the realization of a cooling device with reduced energy consumption by utilizing phase changing materials.
- Figure 1 - is the schematic view of a cooling device.
- FIG. 1 is the schematic view of a thermal energy storage unit.
- FIG. 3 - is the schematic view of a cooling device comprising
- thermal energy storage unit where the thermal energy storage unit is enclosed by a cover.
- Figure 4 - is the schematic view of a cooling device comprising more than
- thermal energy storage units where the thermal energy storage units are enclosed by a cover.
- Figure 5 - is the schematic view of a cooling device having a collecting chamber and a thermal energy storage unit.
- Figure 6 - is the schematic view of a cooling device having a collecting
- the cooling device (1) of the present invention comprises an outer wall (3), an inner wall (4), a cabinet (2) having an insulation material between these two walls (3 and 4), a door (13) that allows the user to have access into the space confined by the cabinet (2) and that closes this space in a leak proof way, a cooling compartment (10) and a freezing compartment (1 1) confined by the cabinet (2) and the door (13), each having different temperatures, one or more recesses (12) preferably on the surface of the inner wall (4) facing the inner space, and the phase changing material (7) having a perfect heat conductivity, showing eutectic features and derived by combining one or more substances and a thermally conductive case (6) which encloses the phase changing material (7), one or more thermal energy storage units (5), number of which may decrease or increase according to the purpose of utilization and desired energy consumption values ( Figure 1 and Figure 2).
- the case (6) into which the phase changing material (6) is enclosed can either be a polyhedral prism or preferably have a cylindrical or spherical shape.
- the cooling device (1) comprises a cover (8) entirely enclosing the thermal energy storage unit (5) positioned in each recess (12), hiding the thermal energy storage units (5) from view thus maintaining an aesthetic view, and preventing the damage of thermal energy storage units (5) and the leakage of phase changing material (7) into the inner space of the cabinet (2) when such damage occurs ( Figure 3 and Figure 4).
- the cooling device ( 1 ) comprises a sealing element (14) positioned between the door (8) and the inner wall (4) which prevents leakage of the phase changing material (7) into the inner space of the cabinet (2) in case there is a leakage due to the damaging of the thermal energy storage unit (5).
- the cover (8) can be fitted on the thermal energy storage units (5) by snap-fitting method.
- the cooling device (1) of the present invention comprises a collecting chamber (9) which serves to collect the phase changing material (7) if the thermal energy storage unit (5) is damaged due to piercing, breaking etc. resulting in displacement of the phase changing material (7) from the case (6) and prevents leakage of the phase changing material (7) into the inner space of the cooling and freezing compartments (10 and 11) and enables it to continue serving in compliance with its features.
- the collecting chamber (9) positioned under the recesses (12)
- [027] has a volume which can collect entirely all the phase changing material (7) in all of the thermal storage units (5) positioned on the recesses (12) on the inner wall (4) in case of a leakage ( Figure 5 and Figure 6).
- the cabinet (2) comprises recesses (12) on the inner wall (4) shaped preferably in a concave form that best suits the thermal energy storage units (5) manufactured during the thermoforming process of production. These recesses (12) are positioned on at least one of the bottom, top, back, side or front surfaces forming the inner wall (4) of the cabinet (2).
- phase changing material (7) Ethylene glycol, acetone, ethanol, propanol, glycerol type of substances and the mixtures derived by combining such with water are employed as the phase changing material (7).
- Phase changing materials (7) that change phase in temperatures suitable for the object of utilization of the cooling device (1) are chosen as the phase changing material (7).
- thermal energy storage units (5) with phase changing material (7) inside are positioned in these recesses (12) and the thermal energy storage units (5) are fixed to these recesses (12) by means of various fixing methods preferably by adhesion. Consequently the energy consumption of the cooling device can be adjusted to the desired value by only changing the number of the thermal energy storage units (5). In this case the thermal energy storage units (5) are in direct contact with the inner space of the cooling and freezing compartments (10 and 11) where food items are stored.
- the phase changing material (7) in the thermal energy storage units (5) are chemical substances which may be dangerous for the food items stored in the cooling and freezing compartments (10 and 11) and for those consuming these food items, the recesses (12) formed on the inner wall (4) of the cabinet (2) and the thermal energy storage units (5) positioned in these recesses (12) are enclosed by a cover (8) produced of a material that preferably has the characteristic that keeps it unaffected by the chemical composition of the phase changing material
- the said cover (8) can be mounted on the inner wall (4) with the sealing element (14) in between, either by utilizing various fixing elements or can be mounted on the inner wall (4) by snap-fitting method.
- the cover (8) may either have a smooth surface or may comprise shelf supports on it.
- the freezer compartment ( 1 1) operates at approximately -18 0 C and the cooling compartment (10) at approximately 5° C temperatures.
- different phase changing materials (7) that change phase at different temperatures are utilized for the cooling compartment (10) and the freezing compartment (11).
- phase changing material (7) preferably preserving solid state at 5 C and at less than 5 C temperatures
- phase changing material (7) preserving solid state at -18 C and at less than -18 C are utilized.
- the cooling device (1) performs the cooling process by a cooling cycle starting with the operation of the compressor between one point lower temperature (cut-out) and one point higher temperature (cut-in) and ending with switching off.
- the phase changing material (7) in the thermal energy storage units (5) positioned inside the cooling device (1) freezes while the compressor is functioning due to the drop in temperature in the cooling and freezing compartments (10 and 1 1) and melts when the compressor is switched off determined by the compartment temperatures.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Thermal Insulation (AREA)
- Refrigerator Housings (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05784512A EP1797380B1 (en) | 2004-09-27 | 2005-09-23 | A cooling device |
AT05784512T ATE551578T1 (en) | 2004-09-27 | 2005-09-23 | COOLER |
TR2007/01347T TR200701347T1 (en) | 2004-09-27 | 2005-09-23 | A cooler |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR2004/02464 | 2004-09-27 | ||
TR200402464 | 2004-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006035395A1 true WO2006035395A1 (en) | 2006-04-06 |
Family
ID=35432661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/053161 WO2006035395A1 (en) | 2004-09-27 | 2005-09-23 | A cooling device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1797380B1 (en) |
AT (1) | ATE551578T1 (en) |
TR (1) | TR200701347T1 (en) |
WO (1) | WO2006035395A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2116799A2 (en) | 2008-05-06 | 2009-11-11 | Samsung Electronics Co., Ltd. | Refrigerator with Cold Storage Unit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB566223A (en) * | 1943-07-02 | 1944-12-19 | Frank Ernest Webster | Improvements in or relating to refrigerator cabinets |
DE3936017A1 (en) * | 1989-10-28 | 1991-05-02 | Bauknecht Hausgeraete | Combined domestic refrigerator and freezer - has cold pack fluid container incorporated in freezer or refrigerator compartment |
EP1010955A1 (en) * | 1998-12-18 | 2000-06-21 | OCEAN S.p.A. | An evaporator for a refrigerator or the like |
WO2001027551A1 (en) * | 1999-10-08 | 2001-04-19 | BSH Bosch und Siemens Hausgeräte GmbH | Heat exchanger, such as an evaporator, condenser or the like |
-
2005
- 2005-09-23 WO PCT/IB2005/053161 patent/WO2006035395A1/en active Application Filing
- 2005-09-23 TR TR2007/01347T patent/TR200701347T1/en unknown
- 2005-09-23 AT AT05784512T patent/ATE551578T1/en active
- 2005-09-23 EP EP05784512A patent/EP1797380B1/en not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB566223A (en) * | 1943-07-02 | 1944-12-19 | Frank Ernest Webster | Improvements in or relating to refrigerator cabinets |
DE3936017A1 (en) * | 1989-10-28 | 1991-05-02 | Bauknecht Hausgeraete | Combined domestic refrigerator and freezer - has cold pack fluid container incorporated in freezer or refrigerator compartment |
EP1010955A1 (en) * | 1998-12-18 | 2000-06-21 | OCEAN S.p.A. | An evaporator for a refrigerator or the like |
WO2001027551A1 (en) * | 1999-10-08 | 2001-04-19 | BSH Bosch und Siemens Hausgeräte GmbH | Heat exchanger, such as an evaporator, condenser or the like |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2116799A2 (en) | 2008-05-06 | 2009-11-11 | Samsung Electronics Co., Ltd. | Refrigerator with Cold Storage Unit |
EP2116799A3 (en) * | 2008-05-06 | 2009-12-23 | Samsung Electronics Co., Ltd. | Refrigerator with Cold Storage Unit |
US8726689B2 (en) | 2008-05-06 | 2014-05-20 | Samsung Electronics Co., Ltd. | Refrigerator with cold storage unit |
Also Published As
Publication number | Publication date |
---|---|
TR200701347T1 (en) | 2007-04-24 |
EP1797380A1 (en) | 2007-06-20 |
EP1797380B1 (en) | 2012-03-28 |
ATE551578T1 (en) | 2012-04-15 |
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