WO2006064601A1 - 冷蔵庫 - Google Patents
冷蔵庫 Download PDFInfo
- Publication number
- WO2006064601A1 WO2006064601A1 PCT/JP2005/017676 JP2005017676W WO2006064601A1 WO 2006064601 A1 WO2006064601 A1 WO 2006064601A1 JP 2005017676 W JP2005017676 W JP 2005017676W WO 2006064601 A1 WO2006064601 A1 WO 2006064601A1
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- WO
- WIPO (PCT)
- Prior art keywords
- opening
- switching chamber
- temperature
- temperature switching
- baffle
- Prior art date
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Classifications
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- 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
- F25D31/00—Other cooling or freezing apparatus
- F25D31/005—Combined cooling and heating devices
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- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
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- 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
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/01—Heaters
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- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/16—Convertible refrigerators
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- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/121—Sensors measuring the inside temperature of particular compartments
Definitions
- the present invention relates to a refrigerator provided with a temperature switching room that can be switched to a desired room temperature by a user.
- the present invention also relates to a refrigerator including a damper that opens and closes a cold air passage on a cold air inflow side of a storage room.
- Patent Document 1 discloses a refrigerator provided with a temperature switching chamber in addition to a freezer compartment and a refrigerator compartment.
- This refrigerator includes a damper device that opens and closes a passage of cool air sent to the temperature switching chamber, and a heater that raises the temperature of the temperature switching chamber.
- the indoor temperature of the temperature switching chamber can be switched to a desired low temperature range such as freezing, refrigeration, partial, chilled, etc. according to the user's application.
- Patent Document 1 Japanese Patent Laid-Open No. 10-288440
- the room temperature of the temperature switching chamber can be switched by adjusting the amount of cooling air flowing from the cooling device into the temperature switching chamber with the damper device. For this reason, the difference between the cold air temperature flowing into the temperature switching chamber and the set temperature is large! In some cases, the temperature distribution cannot be made uniform. Another problem is that when the heater is energized in a sealed state, the temperature in the vicinity of the heater rises and the temperature distribution cannot be made uniform.
- An object of the present invention is to provide a refrigerator capable of making the temperature distribution in the temperature switching chamber uniform.
- a refrigerator includes a cooling device that generates cold air in a refrigerator that includes a temperature switching chamber that can selectively switch a room temperature, and the cooling device that is generated by the cooling device.
- a blower that sends cold air into the temperature switching chamber, an introduction side opening / closing portion that opens and closes an introduction ventilation path communicating between the cooling device and the blower, and the temperature switching
- a return-side opening / closing portion that opens and closes a return air passage that communicates between an outlet from which indoor air flows out and the cooling device, a circulation port provided in the temperature switching chamber, and an intake side of the blower communicate with each other.
- a circulation opening / closing portion that opens and closes the communication path, and closes the circulation opening / closing portion when the introduction side opening / closing portion and the return side opening / closing portion are opened, and also introduces the circulation opening / closing portion when the circulation opening / closing portion is opened.
- the side opening and closing part and the return side opening and closing part are closed.
- the cold air generated by the cooling device is heated via the introduction ventilation path. It is sent to the switching room.
- the cold air flows through the temperature switching chamber, returns from the outlet, and returns to the cooling device through the ventilation path.
- the temperature switching chamber is cooled and switched to a different room temperature such as refrigeration, partial, chilled or refrigerated according to the opening amount of the introduction side opening / closing portion and the return side opening / closing portion and the air volume of the blower.
- the air in the temperature switching chamber is guided from the circulation port to the intake side of the blower via the communication path. It is sent into the temperature switching room. Thereby, the air in the temperature switching chamber circulates.
- the present invention includes a heater that raises the temperature of the temperature switching chamber, and switches the indoor temperature of the temperature switching chamber to a high temperature side that drives the heater and keeps the heated food. It is characterized by having made it possible. According to this configuration, when the temperature switching chamber is switched to the high temperature side, the circulation opening / closing part is opened and the introduction side opening / closing part and the return side opening / closing part are closed. Then, the blower and the heater are driven to raise the temperature in the temperature switching chamber. This makes it possible to temporarily heat cooked foods and to cook in winter.
- the present invention is characterized in that, in the refrigerator configured as described above, the heater also has a heat radiation type glass tube heater force disposed facing the blower.
- the present invention includes a temperature switching chamber return damper in which the return-side opening / closing part and the circulation opening / closing part are integrally formed, and the outlet and the circulation outlet are shared.
- the return ventilation path formed from the opening and extending from the opening branches off at the temperature switching chamber return damper, and the temperature switching chamber return damper defines the position where the communication path is shielded and the return ventilation path. It has a double-sided baffle that rotates between the shielding position.
- the return side opening / closing section and the circulation opening / closing section are formed of a common temperature switching chamber return damper having a rotating double-sided baffle, and the communication path opens when the return ventilation path is closed by the double-sided baffle. .
- the temperature switching chamber discharge damper is closed and the blower is driven, the air in the temperature switching chamber is guided from the opening to the intake side of the blower through the communication path and circulates.
- the communication path is closed by the double-sided baffle, the return ventilation path opens.
- the temperature switching chamber discharge damper is opened and the blower is driven, the cool air generated by the cooling device flows into the temperature switching chamber via the introduction ventilation path, and returns from the opening to the cooling apparatus via the return ventilation path.
- the present invention is characterized in that, in the refrigerator configured as described above, the double-sided baffle is pivotally supported by a horizontal shaft arranged at an upper end of the double-sided baffle. According to this configuration, when the return ventilation path is closed by the double-sided baffle and condensation occurs on the double-sided baffle due to the temperature difference between the temperature switching chamber side and the cooling device side, the condensed water is released from the horizontal pivot shaft. Flow down away
- the present invention includes a damper in which the introduction side opening / closing portion and the circulation opening / closing portion are integrally formed, and the introduction ventilation passage and the communication passage are joined by the damper.
- the damper is guided to the suction side of the blower, and the damper has a double-sided baffle that rotates between a position that shields the communication path and a position that shields the introduction ventilation path.
- the introduction side opening / closing part and the circulation opening / closing part are formed of a common damper having a rotating double-sided baffle, and the communication path is opened when the introduction ventilation path is closed by the double-sided baffle.
- the air in the temperature switching chamber is guided from the opening to the intake side of the blower through the communication path and circulates.
- the introduction ventilation path opens.
- the return side opening / closing part is opened and the blower is driven, the cold air generated by the cooling device flows into the temperature switching chamber through the introduction ventilation path, and returns from the opening to the cooling apparatus through the return ventilation path.
- the introduction-side opening / closing portion includes a temperature switching chamber discharge damper, and the temperature switching chamber discharge damper includes an opening communicating with the temperature switching chamber, and the opening And a movable baffle arranged on the cooling device side to open and close the opening.
- the circulation opening / closing part is closed and the temperature switching chamber discharge damper and the return side opening / closing part are opened!
- the blower is driven in a hot state, the cold air generated by the cooling device is sent to the temperature switching chamber through the introduction ventilation path.
- the cold air flows through the temperature switching chamber, returns from the outlet, and returns to the cooling device through the ventilation path.
- the temperature switching chamber is cooled, and the temperature switching chamber is switched to a different room temperature such as refrigeration, partial, chilled or refrigerated according to the opening amount of the temperature switching chamber discharge damper and the return side opening / closing part and the air volume of the blower.
- a different room temperature such as refrigeration, partial, chilled or refrigerated according to the opening amount of the temperature switching chamber discharge damper and the return side opening / closing part and the air volume of the blower.
- the air in the temperature switching room passes from the circulation port to the intake side of the fan through the communication path. Guided and sent into the temperature switching chamber. Thereby, the air in the temperature switching chamber circulates.
- the temperature switching chamber discharge damper is installed in the introduction ventilation path, and the temperature switching chamber and the cooling device communicate with each other through the opening.
- the opening is opened and closed by a movable baffle arranged on the cooling device side.
- the present invention provides a refrigerator configured as described above, further comprising a heater that raises the temperature switching chamber, and switches the indoor temperature of the temperature switching chamber to a high temperature side that drives the heater and keeps the heated food. It is characterized by having made it possible. According to this configuration, when the temperature switching chamber is switched to the high temperature side, the circulation opening / closing section is opened and the temperature switching chamber discharge damper and the return side opening / closing section are closed. Then, the blower and the heater are driven, and the temperature switching chamber is heated. Thereby, the heat insulation of the heat-cooked food can be performed temporarily, or the temperature can be cooked in winter.
- the present invention is directed to a refrigerator that supplies cold air generated by a cooling device to a storage room via a cold air passage, and a damper that varies the amount of cold air supplied to the storage room is provided with the cold air.
- the damper has an opening communicating with the storage chamber, and a movable baffle disposed on the cooling device side with respect to the opening to open and close the opening.
- the cold air generated by the cooling device flows through the cold air passage and is supplied to the storage room, and the storage room is cooled.
- the damper is installed in the cold air passage, and the storage room and the cooling device communicate with each other through the opening.
- the opening is opened and closed by a movable baffle arranged on the cooling device side.
- the storage chamber includes a temperature switching chamber in which the indoor temperature can be switched selectively, and is arranged in parallel with the storage chamber to branch the cold air passage. And a cooling chamber to which cold air is supplied.
- the present invention is characterized in that the baffle is pivotally supported by a horizontal axis arranged at an upper end of the baffle in the refrigerator configured as described above. According to this configuration, when the passage for supplying cool air to the storage room such as the temperature switching room is closed by the baffle and the dew condensation force S occurs due to the temperature difference between the storage room side and the cooling device side, the dew condensation water is generated. The horizontal pivot force also flows away.
- the present invention is characterized in that in the refrigerator having the above configuration, a heat insulating material is provided on a surface of the baffle.
- the present invention is characterized in that a step lower than the opening or an inclined surface extending from the periphery of the opening is provided around the opening opposite to the baffle. . According to this configuration, when dew condensation occurs on the surface of the baffle opposite to the cooling device side, the dew condensation water flows down the baffle surface and is guided to the storage chamber side such as the temperature switching chamber through the step or the inclined surface.
- a blower that sends out cool air, an introduction side opening and closing part that opens and closes the introduction ventilation path, a return side opening and closing part that opens and closes the return ventilation path, a circulation port provided in the temperature switching chamber, and a fan
- a circulation opening / closing part that opens and closes the communication path that communicates with the intake side is provided, and when the circulation opening / closing part is opened, the introduction side opening part and the return side opening / closing part are closed.
- the air can be circulated by driving the blower to make the temperature distribution in the temperature switching chamber uniform.
- the opening / closing section for circulation is closed when the introduction-side opening / closing section and the return-side opening / closing section are opened, cold air can flow through the temperature switching chamber and the temperature distribution in the temperature switching chamber can be made uniform. At this time, since the circulation opening / closing part is closed, it is possible to prevent a reduction in the blowing efficiency.
- the heater for raising the temperature of the temperature switching chamber is provided and the heater is driven to keep the heated food warm, the room temperature of the temperature switching chamber can be switched to the high temperature side. Therefore, it is possible to provide a highly convenient refrigerator that does not require a heat-reserving chamber or the like for heat-retaining the battery, reduces the user's economic burden, and eliminates the need for a space for installing the heat-retaining chamber. Then, the temperature distribution in the temperature switching chamber in the sealed state can be made uniform to prevent the heater and the heater from being deformed, ignited, smoked, and the like.
- the heater is a heat radiation type glass tube heater disposed facing the blower, it is possible to pass through the growth temperature zone of food poisoning bacteria whose heating speed is fast. Therefore, a food hygiene safe refrigerator can be provided. Also, since the occupied space is small even if the capacity is increased, the risk of burns to the user is reduced by placing it in the back of the temperature switching chamber. Also, the safety can be improved by lowering the surface temperature of the heater.
- the return side opening / closing part and the circulation opening / closing part are formed integrally, and the communication path and the return ventilation path are selected by the rotating double-sided baffle. Therefore, the cost of the refrigerator can be reduced and the volume efficiency can be improved.
- the double-sided baffle is pivotally supported by the horizontal shaft arranged at the upper end of the double-sided baffle, a temperature difference is generated between the cooling device side of the double-sided baffle and the temperature switching chamber side, so Condensed water flows down to the side away from the pivotal axis force even if the ruffle is condensed. For this reason, even if condensed water freezes when the opening is opened, the pivot shaft can be prevented from freezing and the double-sided baffle can be moved normally. Moreover, it is possible to prevent the rotation of the double-sided baffle from being blocked by the condensed water that has been dripped onto the double-sided baffle and frozen.
- the introduction side opening / closing portion and the circulation opening / closing portion are integrally formed, and the communication path and the return ventilation path are alternatively shielded by the rotating double-sided baffle. Cost reduction and volume efficiency of the refrigerator can be improved.
- the temperature switching chamber discharge damper disposed in the introduction ventilation path has the baffle for opening and closing the opening disposed on the cooling device side with respect to the opening, so that when the opening is closed,
- the baffle condenses only inside the opening, and the pivot shaft of the baffle does not condense. Therefore, even if the condensed water freezes due to cold air when the opening is opened, the baffle can be moved normally, and it is possible to prevent insufficient cooling and overcooling of the temperature switching chamber.
- the damper disposed in the cool air passage has the baffle for opening and closing the opening on the cooling device side with respect to the opening. Only the inner side in contact with the cooling unit faces the high temperature storage room side with respect to the cooling device side. For this reason, If there is a temperature difference between the storage side and the storage room side, the baffle will condense only inside the opening, and the baffle pivot will not condense. Therefore, even if the condensed water freezes when the opening is opened, the kaffle can be moved normally, and it is possible to prevent insufficient cooling or overcooling of the storage room.
- the baffle is pivotally supported by the horizontal shaft arranged at the upper end of the naffle, a temperature difference is generated between the baffle cooling device side and the temperature switching chamber side, and the baffle is connected. Condensed water flows down to the side away from the pivotal force even if it is exposed. Therefore, even if condensed water freezes when the opening is opened, the pivot shaft can be prevented from freezing and the baffle can be moved normally. In addition, the rotation of the baffle can be prevented from being blocked by the freezing of the condensed water that drips the noble force.
- the heat insulating material is provided on the surface of the naffle, it is possible to reduce the dew condensation on the naffle.
- the step difference lower than the opening portion or the inclined surface extending from the periphery of the opening portion is provided around the opening portion on the side opposite to the nuffle, From the periphery of the opening to the opposite side of the cooling device by a step or inclined surface. Therefore, when the baffle is opened, it is possible to prevent the intrusion of condensed water into the opening force cooling device side.
- the storage chamber includes the temperature switching chamber in which the indoor temperature can be switched selectively, and the cooling chamber that is arranged in parallel with the storage chamber and branches the cold air passage to be supplied with the cold air. Since it is provided, it is possible to make the temperature distribution uniform by sealing the inside of the temperature switching chamber and circulating air while keeping the stored product refrigerated or frozen in the cooling chamber.
- FIG. 1 is a front view showing a refrigerator according to an embodiment of the present invention.
- FIG. 2 is a right side view showing the refrigerator according to the embodiment of the present invention.
- FIG. 3 is a right side sectional view showing the refrigerator according to the embodiment of the present invention.
- FIG. 4 is a right side cross-sectional view showing the temperature switching chamber of the refrigerator according to the embodiment of the present invention.
- FIG. 5 is a right side cross-sectional view showing the temperature switching chamber of the refrigerator according to the embodiment of the present invention.
- FIG. 6 is a front sectional view showing the middle part of the refrigerator according to the embodiment of the present invention.
- FIG. 7 is a cold air circuit diagram showing the flow of cold air in the refrigerator according to the embodiment of the present invention.
- FIG. 8 is a view showing a temperature switching chamber discharge damper of the refrigerator according to the embodiment of the present invention.
- FIG. 9 is a side cross-sectional view showing a mounting state of the temperature switching chamber discharge damper of the refrigerator according to the embodiment of the present invention.
- FIG. 10 is a diagram for explaining the effect of the temperature switching chamber discharge damper of the refrigerator according to the embodiment of the present invention.
- FIG. 11 is a diagram for explaining the effect of the temperature switching chamber discharge damper of the refrigerator according to the embodiment of the present invention.
- FIG. 1 and 2 are a front view and a right side view showing a refrigerator according to an embodiment.
- the refrigerator 1 has a refrigerator compartment 2 in the upper stage, and a temperature switching room 3 and an ice making room 4 in the middle.
- a vegetable room 5 and a freezing room 6 are arranged in the lower part of the refrigerator 1.
- the refrigerating room 2 has a double door and stores the stored items in a refrigerator.
- the temperature switching chamber 3 is provided on the left side of the middle stage so that the user can switch the room temperature.
- Ice making chamber 4 is installed on the right side of the middle stage and performs ice making.
- the vegetable compartment 5 is located on the left side of the lower tier and is maintained at a temperature suitable for vegetable storage (eg, about 8 ° C).
- the freezer compartment 6 is provided on the right side of the lower stage and communicates with the ice making compartment 4 to store the stored items in a frozen state.
- FIG. 3 is a right side sectional view of the refrigerator 1.
- the freezing compartment 6 and the ice making compartment 4 are provided with storage cases 11 for storing stored items.
- a similar storage case 11 is provided in the vegetable room 5 and the temperature switching room 3.
- the refrigerator compartment 2 is provided with a plurality of storage shelves 41 on which stored items are placed.
- a storage pocket 42 is provided on the door of the refrigerator compartment 2.
- a chilled chamber 23 maintained at a chilled temperature zone (about ⁇ 3 ° C.) is provided in the lower part of the refrigerator 2.
- a cold air passage 31 is provided behind the freezer compartment 6, and an evaporator 17 connected to the compressor 35 is disposed in the cold air passage 31.
- a cold air passage 32 communicating with the cold air passage 31 is provided behind the refrigerator compartment 2.
- Compressor 35 connected with a condenser and expander (both not shown)
- a refrigerant such as isobutane is circulated by the movement to operate the refrigeration cycle.
- cold air is generated by heat exchange with the evaporator 17 on the low temperature side of the refrigeration cycle. Therefore, the compressor 35 and the evaporator 17 constitute a cooling device that generates cold air together with the condenser and the expander.
- blowers 18 and 28 are arranged in the cool air passages 31 and 32, respectively.
- the cold air generated by the evaporator 17 is supplied to the freezer compartment 6, the ice making chamber 4, the chilled chamber 23, and the temperature switching chamber 3 through the cold air passage 31 by driving the blower 18.
- the fan 28 is supplied to the refrigerator compartment 2 and the vegetable compartment 5 via the cold air passage 32.
- FIG. 4 is a right side sectional view showing the temperature switching chamber 3.
- the upper and lower surfaces of the temperature switching chamber 3 are separated from the refrigerator compartment 2 and the vegetable compartment 5 by the partition walls 7 and 8.
- the front surface of the temperature switching chamber 3 can be opened and closed by a rotating door 9.
- the back surface of the temperature switching chamber 3 is covered with a back plate 33.
- a drawer-type storage case 11 is provided in the temperature switching chamber 3.
- an introduction ventilation path 12 is provided between the rear plate 33 and the heat insulating wall 10 forming the outer wall.
- the introduction ventilation path 12 connects an inlet 33a provided in the back plate 33 and a cold air passage 31 (see FIG. 3).
- a temperature switching chamber discharge damper 13 (introduction side opening / closing section) is provided in the introduction ventilation path 12. By opening the temperature switching chamber discharge damper 13, cold air generated in the evaporator 17 (see FIG. 3) is guided to the temperature switching chamber 3.
- FIGS. 8A to 8C are a front view, a top view, and a side sectional view showing the temperature switching chamber discharge damper 13, respectively.
- the temperature switching chamber discharge damper 13 is provided with a baffle 42 in a housing 40 having an opening 40a on the front surface and capable of producing a resinous product.
- the kaffle 42 is pivotally supported in the housing 40 by a horizontal rotating shaft 42 provided at the upper end.
- the baffle 42 can be rotated as indicated by an arrow H by driving a drive motor 41 coupled to the rotation shaft 42a.
- the opening 40a is opened and closed by the rotation of the kaffle 42, and the temperature switching chamber discharge damper 13 is opened and closed.
- a seal member 43 On the surface of the baffle 42 facing the opening 40a, there is provided a seal member 43 that also has a heat insulating material force that is in close contact with the periphery of the opening 40a.
- FIG. 9 is a side cross-sectional view showing an attached state of the temperature switching chamber discharge damper 13.
- the temperature switching chamber discharge damper 13 is attached to the wall surface 50 of the introduction ventilation path 12.
- the introduction ventilation path 12 is arranged in the direction of the temperature switching chamber 3 arranged on the left side in the drawing and on the upper right side in the drawing. Branches in the direction of the chilled chamber 23, and communicates with the temperature switching chamber 3 through the hole 50a.
- the temperature switching chamber discharge damper 13 has an opening 40a disposed on the temperature switching chamber 3 side (left side in the figure) and a baffle 42 disposed on the evaporator 17 side (right side in the figure).
- the baffle 42 is disposed on the evaporator 17 side with respect to the opening 40a. Therefore, when the opening 40a is closed, the baffle 42 is only on the inner side in contact with the opening 40a. Becomes hot. Since a seal member 43 that also has a heat insulating material force is provided on the surface of the noble 42, the occurrence of condensation is suppressed.
- the baffle 42 may be provided with a heat insulating material on the surface opposite to the side facing the opening 40a.
- the baffle 42 can be moved normally to prevent the temperature switching chamber 3 from being insufficiently cooled or overcooled.
- the baffle 42 when the temperature switching chamber 3 is on the high temperature side (for example, 55 ° C to 80 ° C), the baffle 42 is likely to condense due to the steam that also generates the stored material force. For this reason, even if a large amount of condensed water freezes, the baffle 42 operates normally, and the effect of preventing insufficient cooling and overcooling of the temperature switching chamber 3 is greater. The same effect can be obtained when the kaffle 42 slides not only when it rotates.
- the rotation shaft 42a is arranged at the upper end of the baffle 42, even if the baffle 42 is condensed, the dew condensation water flows down to the side away from the rotation shaft 42a. For this reason, even if the condensed water freezes when the opening 40a is opened, the baffle 42 can be rotated normally by preventing the rotating shaft 42a from freezing.
- the hole 50a of the wall surface 50 is formed to have a larger diameter than the opening 40a, and a step 50b lower than the opening 40a is formed.
- a step 50b lower than the opening 40a is formed.
- a blower 14 is provided between the temperature switching chamber discharge damper 13 and the inflow port 33a.
- An outflow port 33b opens below the back plate 33, and the cool air in the cold air passage 31 is easily guided to the temperature switching chamber 3 through the inflow port 33a by the drive of the blower 14, and flows out from the outflow port 33b. Further, the air volume flowing into the temperature switching chamber 3 from the introduction ventilation path 12 is adjusted by opening and closing the temperature switching chamber discharge damper 13.
- a return ventilation path 19 that returns air to the cooling device 17 is provided behind the outlet 33b.
- a temperature switching chamber return damper 20 (return side opening / closing portion) that opens to face the outlet 33b is provided. Opening portions 20b, 2 Oc are formed at the rear and upper sides of the temperature switching chamber return damper 20, and a rotatable double-sided baffle 20a that selectively closes the opening portions 20b, 20c is provided. Is provided.
- the temperature switching chamber return damper 20 constitutes a circulation opening / closing section that opens and closes the circulation path including the communication path 36, and the outlet 33b has a circulation port through which the air in the temperature switching chamber 3 flows out to the communication path 36.
- the communication path 36 may be formed by providing a circulation port at a position different from the outlet 33b.
- the temperature switching chamber return damper 20 having the double-sided baffle 20a and the circulation opening / closing portion having the outflow port 33b in common with the circulation port constitute a cost reduction and volume efficiency of the refrigerator 1. Can be improved.
- a heater 15 is provided at the upper rear portion of the back plate 33 of the temperature switching chamber 3.
- the heater 15 has a heat radiation type glass tube heater force, and the temperature switching chamber 3 is heated by radiant heat released through the back plate 33.
- the blower 14 is disposed so as to blow toward the surface of the heater 15. Thereby, the surface temperature of the heater 15 can be lowered and safety can be improved.
- a temperature sensor 16 is provided in the lower part behind the back plate 33.
- the temperature sensor 16 detects the temperature in the temperature switching chamber 3 and sends a detection signal to a control unit (not shown).
- the controller controls the heater 15, the temperature switching chamber discharge damper 13, based on the detection result of the temperature sensor 16.
- the blower 14 is controlled to keep the temperature switching chamber 3 at the set temperature.
- a temperature sensor 24 is provided adjacent to the heater 15 above.
- the temperature sensor 24 is in close contact with the upper surface of the back plate 33 provided so as to surround the heater 15. As a result, the temperature sensor 24 detects the temperature in the vicinity of the upper portion of the heater 15 that is most easily heated by the rise of the air that has received the radiant heat of the heater 15.
- the heater 15 can be stopped to prevent the heater 15, and the vicinity of the heater 15 from being broken, ignited, or smoked.
- a temperature fuse 30 is provided above the temperature sensor 16. When the temperature fuse 30 reaches a predetermined temperature, the heater 15 is turned off. This can further improve safety.
- FIG. 6 shows a front sectional view of the vicinity of the middle stage of the refrigerator 1.
- a cold air passage 31 behind the freezer compartment 6 opens at the upper front of the blower 18, and air is sent to the ice making chamber 4 by the blower 18.
- a freezer compartment damper 22 is provided below the freezer compartment 6 that communicates with the ice making compartment 4.
- a return ventilation path 21 (see FIG. 3) is provided in the lower rear portion of the freezer compartment 6 to guide air to the evaporator 17 via the freezer compartment damper 22 and return it to the cool air passage 31. Opening and closing the freezer compartment 22 adjusts the air flow from the freezer compartment 6.
- the upper part of the cold air passage 31 communicates with the cold air passage 32 via the refrigerator compartment damper 27.
- the cooling passage 31 is branched to form an introduction ventilation passage 12, which communicates with the chilled chamber 23 via the chilled chamber damper 25 and, as described above, the temperature switching chamber 3 via the temperature switching chamber discharge damper 13. Communicate with.
- a refrigerator outlet (not shown) is opened below the back of the refrigerator compartment 2, and a vegetable compartment inlet (not shown) is provided in the vegetable compartment 5.
- the refrigerator compartment outlet and the vegetable compartment inlet are connected by a passage (not shown) passing through the back of the temperature switching chamber 3 so that the refrigerator compartment 2 and the vegetable compartment 5 communicate with each other.
- a return air passage 19 communicating with the temperature switching chamber 3 extends downward from the temperature switching chamber return damper 20 and is disposed behind the temperature switching chamber 3 and the vegetable chamber 5.
- the air in the temperature switching chamber 3 is guided to the evaporator 17 through the return ventilation paths 19 and 21 by opening the temperature switching chamber return damper 20.
- a vegetable room outlet (not shown) communicating with the return ventilation path 19 is provided on the back of the vegetable room 5.
- FIG. 7 is a cold air circuit diagram showing the flow of cold air in the refrigerator 1.
- the cold air generated by the evaporator 17 is sent up to the ice making chamber 4 by raising the cold air passage 31 as shown by an arrow A (see FIG. 6) by driving the blower 18.
- the cold air sent to the ice making room 4 flows through the ice making room 4 and the freezing room 6 and flows out from the freezing room damper 22. Then, it returns to the evaporator 17 through the return ventilation path 21. As a result, the ice making chamber 4 and the freezing chamber 6 are cooled.
- the cold air branched at the top of the cold air passage 31 by driving the blower 28 flows through the cold air passage 32 through the cold room damper 27 as shown by an arrow B (see FIG. 6), and is sent to the cold room 2
- the cold air sent to the refrigerator compartment 2 and the chilled compartment 23 flows through the refrigerator compartment 2 and the chilled compartment 23 and then flows into the vegetable compartment 5.
- the cold air flowing into the vegetable compartment 5 circulates in the vegetable compartment 5 and returns to the evaporator 17 via return paths 19 and 21. As a result, the inside of the refrigerator compartment 2 and the vegetable compartment 5 is cooled, and when the set temperature is reached, the refrigerator compartment damper 27 and the chilled compartment damper 23 are closed.
- the cold air branched at the upper portion of the cold air passage 31 by driving the blower 14 flows through the introduction ventilation passage 12, and as shown by the arrow D (see FIGS. 4 and 6), the temperature switching chamber discharge damper 13 is turned on. It flows into the temperature switching chamber 3 through. The cold air flowing into the temperature switching chamber 3 flows through the temperature switching chamber 3 and flows out from the outlet 33b. Then, as shown by an arrow E (see FIGS. 4 and 6), it returns to the evaporator 17 via the return ventilation paths 19 and 21. Thereby, the inside of the temperature switching chamber 3 is cooled.
- the temperature switching chamber 3 is configured such that the user can switch the room temperature.
- the user can select the temperature range of frozen (15 ° C), partial (8 ° C), chilled (-3 ° C), refrigerated (3 ° C), vegetable (8 ° C), etc. It ’s like that.
- the user can store the stored product in a frozen or refrigerated state at a desired temperature.
- the room temperature can be switched by changing the amount of opening the temperature switching chamber discharge damper 13 and the air volume of the blower 14.
- the double-sided baffle 20a of the temperature switching chamber return damper 20 is arranged so as to open the return air passage 19 and close the communication passage 36, as shown in FIG. For this reason, the cold air flowing in from the inflow port 33a flows through the return ventilation path 19 via the temperature switching chamber return damper 20 without circulating through the communication path 36. Therefore, a short circuit due to the communication path 36 can be prevented, and the blowing efficiency of the blower 14 can be improved.
- the heater 15 may be energized to raise the temperature. Thereby, it is possible to quickly switch to a desired room temperature.
- the heater 15 is energized to switch the temperature in the temperature switching chamber 3 from the low temperature side where the stored product is stored frozen or refrigerated to the high temperature side where the cooked heated food is temporarily kept warm or cooked. I am able to do that.
- the temperature switching chamber discharge damper 13 is closed and the double-sided baffle 20a of the temperature switching chamber return damper 20 is returned as shown in FIG.
- the ventilation passage 19 is closed and the communication passage 36 is opened.
- the air in the temperature switching chamber 3 is guided to the blower 14 through the temperature switching chamber return damper 20 and circulates as indicated by the broken line S in FIG. Therefore, the temperature switching chamber 3 can be sealed to prevent warm air from flowing out, the temperature distribution in the temperature switching chamber 3 on the high temperature side can be made uniform, and deformation, ignition, smoke, etc. around the heater 15 and the heater can be prevented. be able to.
- the room temperature on the high temperature side is 50 ° considering the tolerance of the heater capacity and the temperature distribution in the temperature switching chamber 3 because the growth temperature of the main food poisoning bacteria is 30 ° C to 45 ° C. C or better. This prevents the propagation of germs.
- the heat-resistant temperature of common resin parts used in refrigerators is 80 ° C, it can be realized at low cost by reducing the indoor temperature on the high temperature side to 80 ° C or lower.
- Test sample is E. coli in the initial state 2.4 X 10 3 CFU / mL, Staphylococcus aureus 2. OX 10 3 CFU / mL, Salmonella 2.1 X 10 3 CFU / mL, Vibrio parahaemolyticus 1.5 X 10 3 CFU / mL, Cereus 4.0 X 1 0 3 Including CFU / mL! Warm this test sample from 3 ° C to 55 ° C over 40 minutes, incubate at 55 ° C for 3.5 hours, then return to 55 ° C to 3 ° C over 80 minutes and re-examine the amount of each strain.
- the heater 15 is a thermal radiation type glass tube heater.
- the heater 15 may be a heat conduction heater such as an inexpensive sheet-like aluminum vapor deposition heater, but the heating speed is slow. For this reason, when the temperature switching chamber 3 is set to a high temperature side, it takes a long time to pass through the temperature range of 30 to 45 ° C., which is the growth temperature range of food poisoning bacteria, and the food hygiene safety is lowered. If the capacity of the heater is increased to increase the heating speed, there is a restriction on the heat resistance temperature (usually about 80 ° C) of the peripheral parts to which the heater is attached. In addition, the heat dissipating surface is wide enough to reach the vicinity of the temperature switching chamber 3, which may cause the user to burn.
- a heat radiation type glass tube heater is safe for food hygiene because the heating speed is high.
- the occupied space is small even if the capacity is increased, the risk of burns to the user is reduced by arranging it at the back of the temperature switching chamber 3 as shown in FIG. Therefore, it is more desirable to make the heater 15 a thermal radiation type glass tube heater.
- the heater 15 can be driven with a capacity larger than the capacity required to maintain the indoor temperature on the high temperature side for keeping the heated food warm.
- the capacity of the heater 15 can be changed by the energization rate. Accordingly, when the temperature switching chamber 3 is switched from the low temperature side to the high temperature side and heated, the refrigerator 1 having high convenience can be obtained by quickly switching to the high temperature side by driving with a large capacity. Further, when the indoor temperature on the high temperature side is reached, the heater 15 can be maintained at a predetermined temperature by being driven at a reduced capacity.
- a heater 15 having a power consumption of about 190 W and a surface area of about 10,990 mm 2 is used, and the temperature switching chamber 3 having an internal volume of about 0.023 m 3 is set to 3 with a heater 15 energization rate of 100%.
- the temperature switching chamber 3 can be maintained at about 80 ° C by intermittent operation at an energization rate of 15% (15 seconds ON, 85 seconds OFF).
- the blower 14 uses a motor with an axial fan and operates at an air flow rate of about 0.4 m 3 Z.
- the surface temperature of the heater 15 is about 250 ° C at the maximum in the heat-retaining state, and is maintained at a temperature lower than the ignition point temperature (494 ° C) of isobutane, which is a flammable refrigerant.
- ignition point temperature (494 ° C) of isobutane which is a flammable refrigerant.
- the air in the temperature switching chamber 3 may be circulated when the temperature switching chamber 3 reaches a predetermined temperature on the low temperature side. That is, the return air passage 19 is closed by the temperature switching chamber return damper 20 and the communication passage 36 is opened, and the temperature switching chamber discharge damper 13 is closed and the blower 14 is driven. Thereby, the temperature distribution of the temperature switching chamber 3 on the low temperature side can be made more uniform.
- the force that opens and closes the return ventilation path 19 and the communication path 36 by the temperature switching chamber return damper 20 may open and close the introduction ventilation path 12 and the communication path 36 by the temperature switching chamber discharge damper 13. . That is, a double-sided baffle similar to the temperature switching chamber return damper 20 is provided in the temperature switching chamber discharge damper 13.
- the double-sided baffle When the double-sided baffle is disposed at a position where the introduction ventilation path 12 is opened and the communication path 36 is closed, the cold air flowing into the temperature switching chamber 3 from the inlet 33a is returned to the temperature switching chamber from the outlet 33b. It is led to the return ventilation path 19 through 20. Further, when the baffle is disposed at a position where the communication path 36 is opened and the introduction ventilation path 12 is closed, air circulates in the temperature switching chamber 3. As a result, similar to the above, the cost of the refrigerator 1 can be reduced and the volume efficiency can be improved.
- a damper may be provided at the outlet of the vegetable compartment 5.
- the damper can be closed to prevent the hot air from the temperature switching chamber 3 from flowing back into the vegetable chamber 5. It is possible to prevent condensation on the double-sided baffle 20a due to cold air reaching from the vegetable compartment 5 to the double-sided baffle 20a.
- the present invention can be used for a refrigerator including a temperature switching chamber in which the room temperature can be switched by a user. Further, according to the present invention, the cool air is introduced into the cool air inflow side of the storage room. It can be used for a refrigerator provided with a damper for opening and closing the passage.
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- 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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05787849.8A EP1826515A4 (en) | 2004-12-15 | 2005-09-27 | COOLER |
US11/667,836 US20080047294A1 (en) | 2004-12-15 | 2005-09-27 | Refrigerator |
US12/480,408 US20090235684A1 (en) | 2004-12-15 | 2009-06-08 | Refrigerator |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004362714A JP3819014B2 (ja) | 2004-12-15 | 2004-12-15 | 冷蔵庫 |
JP2004-362714 | 2004-12-15 | ||
JP2005029900A JP3892015B2 (ja) | 2005-02-07 | 2005-02-07 | 冷蔵庫 |
JP2005-029900 | 2005-02-07 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/480,408 Division US20090235684A1 (en) | 2004-12-15 | 2009-06-08 | Refrigerator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006064601A1 true WO2006064601A1 (ja) | 2006-06-22 |
Family
ID=36587665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/017676 WO2006064601A1 (ja) | 2004-12-15 | 2005-09-27 | 冷蔵庫 |
Country Status (4)
Country | Link |
---|---|
US (2) | US20080047294A1 (ja) |
EP (1) | EP1826515A4 (ja) |
RU (1) | RU2350858C1 (ja) |
WO (1) | WO2006064601A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008120905A3 (en) * | 2007-04-03 | 2009-03-19 | Lg Electronics Inc | A refrigerator and a control method for the same |
CN106440622A (zh) * | 2016-09-30 | 2017-02-22 | 青岛海尔股份有限公司 | 一种冰箱及其冷冻冷藏功能转换的控制方法 |
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US20080271475A1 (en) * | 2007-01-29 | 2008-11-06 | Wuesthoff Edward P | Refrigerator having compartment capable of converting between refrigeration and freezing temperatures |
CN101886868B (zh) * | 2009-05-11 | 2012-06-27 | 日立空调·家用电器株式会社 | 挡板装置及具有挡板装置的冰箱 |
EP2339275B1 (en) * | 2009-12-24 | 2017-02-08 | Panasonic Corporation | Refrigerator |
ITPD20110072A1 (it) | 2011-03-07 | 2012-09-08 | Irinox S P A | Metodo per il trattamento di alimenti e dispositivo per realizzare tale metodo |
DE102011013351A1 (de) | 2011-03-08 | 2012-09-13 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät |
US20120291469A1 (en) * | 2011-05-17 | 2012-11-22 | General Electric Company | Refrigerator temperature control method and apparatus |
KR20140115837A (ko) * | 2013-03-22 | 2014-10-01 | 엘지전자 주식회사 | 냉장고 |
KR102004470B1 (ko) * | 2013-04-01 | 2019-10-17 | 엘지전자 주식회사 | 냉장고 |
KR101741751B1 (ko) | 2015-06-17 | 2017-05-31 | 동부대우전자 주식회사 | 냉기유로 댐퍼장치를 갖는 냉장고 및 그 구동 방법 |
AU2018410665A1 (en) | 2018-03-02 | 2020-08-06 | Electrolux Do Brasil S.A. | Single air passageway and damper assembly in a variable climate zone compartment |
US11747074B2 (en) | 2018-03-02 | 2023-09-05 | Electrolux Do Brasil S.A. | Heater in a variable climate zone compartment |
AU2018410666A1 (en) | 2018-03-02 | 2020-08-06 | Electrolux Do Brasil S.A. | Air passageways in a variable climate zone compartment |
US11300349B2 (en) * | 2019-09-27 | 2022-04-12 | Electrolux Home Products, Inc. | Upright appliance drain jumper |
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- 2005-09-27 RU RU2007126841/12A patent/RU2350858C1/ru active
- 2005-09-27 WO PCT/JP2005/017676 patent/WO2006064601A1/ja active Application Filing
- 2005-09-27 EP EP05787849.8A patent/EP1826515A4/en not_active Withdrawn
- 2005-09-27 US US11/667,836 patent/US20080047294A1/en not_active Abandoned
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2009
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WO2008120905A3 (en) * | 2007-04-03 | 2009-03-19 | Lg Electronics Inc | A refrigerator and a control method for the same |
US8904817B2 (en) | 2007-04-03 | 2014-12-09 | Lg Electronics Inc. | Refrigerator and a control method for the same |
CN106440622A (zh) * | 2016-09-30 | 2017-02-22 | 青岛海尔股份有限公司 | 一种冰箱及其冷冻冷藏功能转换的控制方法 |
WO2018059523A1 (zh) * | 2016-09-30 | 2018-04-05 | 青岛海尔股份有限公司 | 一种冰箱及其冷冻冷藏功能转换的控制方法 |
Also Published As
Publication number | Publication date |
---|---|
RU2007126841A (ru) | 2009-01-27 |
EP1826515A1 (en) | 2007-08-29 |
US20090235684A1 (en) | 2009-09-24 |
EP1826515A4 (en) | 2014-01-15 |
RU2350858C1 (ru) | 2009-03-27 |
US20080047294A1 (en) | 2008-02-28 |
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