WO2012008092A1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
WO2012008092A1
WO2012008092A1 PCT/JP2011/003401 JP2011003401W WO2012008092A1 WO 2012008092 A1 WO2012008092 A1 WO 2012008092A1 JP 2011003401 W JP2011003401 W JP 2011003401W WO 2012008092 A1 WO2012008092 A1 WO 2012008092A1
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WO
WIPO (PCT)
Prior art keywords
duct
switching chamber
switching
room
air
Prior art date
Application number
PCT/JP2011/003401
Other languages
English (en)
Japanese (ja)
Inventor
愼一 堀井
雅司 湯浅
利幸 森内
綾一 小野
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to EP11806429.4A priority Critical patent/EP2594871B1/fr
Priority to CN201180034557.1A priority patent/CN103003650B/zh
Publication of WO2012008092A1 publication Critical patent/WO2012008092A1/fr

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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
    • F25D23/069—Cooling space dividing partitions
    • 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
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D2317/067—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 characterised by air ducts

Definitions

  • the present invention relates to a refrigerator that forcibly circulates cold air generated by a cooler to cool each storage room in different temperature zones.
  • FIG. 14 is a longitudinal sectional view of a conventional refrigerator.
  • the refrigerator 1 is a refrigerator constituted by a heat insulating box 5 in which a heat insulating material 4 is filled between an inner box 2 and an outer box 3.
  • the refrigerator has a refrigerated room 6, a switching room 7, and a freezing room 8 divided into a plurality of storage rooms from the top, and the front opening of each storage room has a refrigerated room door 9, a switching room door 10, and a freezing room. It is blocked by the chamber door 11.
  • the refrigerator compartment 6 and the switching compartment 7 are partitioned by a partition plate 12 having a heat insulating effect.
  • the switching chamber 7 and the freezer compartment 8 are partitioned by a partition plate 13 having a heat insulating effect.
  • a duct 14 connected to the freezer compartment 8 is installed in the back of the partition plate 13 (the back side of the inner box 2 of the refrigerator compartment 6).
  • a refrigerator compartment shelf 20 for storing food and a refrigerator compartment case 21 are arranged. Further, a tube-on-sheet 15 (evaporator) is disposed on the back surface of the inner box 2 of the refrigerator compartment 6 in contact with the wall surface to cool the interior of the refrigerator compartment 6. A cooler 16 is disposed on the back of the freezer compartment 8, and a fan 17 is disposed above the cooler 16.
  • a switching chamber case 22 for storing food is disposed in the switching chamber 7, and a duct 18 having a damper 19 inside is disposed on the back of the switching chamber 7.
  • the refrigerator compartment 6 is provided with the tube-on-sheet 15 in contact with the back surface of the inner box 2 of the refrigerator compartment 6 so that the rear surface of the inner box 2 of the refrigerator compartment 6 serves as a cooling wall surface.
  • the room shelf 20 and the refrigerator compartment case 21 are naturally cooled.
  • the freezer compartment 8 is forcibly cooled by forcibly circulating the cool air of the cooler 16 in the cooling compartment by the fan 17. Then, the cold air circulated in the freezer compartment 8 returns to the cooler 16.
  • the switching chamber 7 is forcibly cooled by causing a part of the cool air to flow into the duct 14 and circulating to the duct 18 at the back of the switching chamber 7 by the fan 17.
  • the cold air that has flowed into the duct 18 passes through the damper 19, is discharged to the switching chamber case 22, exchanges heat with the air in the switching chamber case 22, and is then sucked into the return duct 18 to the cooler 16 on the back surface. Return to cooler 16.
  • the refrigerator compartment 6 and the switching compartment 7 are partitioned vertically by the partition plate 12, a passage through which cold air circulates is not formed. Therefore, the refrigerator compartment 6 is cooled to a predetermined temperature by the tube on sheet 15.
  • the switching chamber 7 keeps the temperature of the switching chamber 7 constant by circulating the cold air cooled by the cooler 16 into the switching chamber 7 by the fan 17 and controlling the amount of cold air circulated by the damper 19. . Thereby, the temperature of the food in the switching chamber case 22 can be kept constant, and the freshness of the food can be maintained. (For example, refer to Patent Document 1).
  • the inside of the duct 18 is provided with a plurality of passages so as to be diverged in various ways. That is, since the duct 18 communicates with a plurality of discharge ports provided on the top surface of the switching chamber 7 and discharges cold air, the duct 18 must be provided with a plurality of discharge ports, and the structure becomes complicated. .
  • the cool air guided from the cooler 16 by the fan 17 increases the air path resistance in the duct 18, so that a predetermined amount of cool air cannot be discharged to the switching chamber 7, and the switching chamber 7 is brought to a predetermined temperature. It may not be possible to keep. Therefore, it is necessary to increase the air passage area in order to reduce the air passage resistance of the duct 18, but when the air passage area is increased, the depth dimension of the switching chamber 7 is reduced and the internal volume of the refrigerator 1 is reduced.
  • the refrigerator of the present invention generates a cold room provided at the rear of the freezer room, a freezer room provided at the lower part, a switching room for switching the temperature zone provided between the freezer room and the freezer room
  • a cooling device a fan disposed at the top of the cooler that blows cool air generated by the cooler to the refrigerating room, the freezing room, and the switching room, a refrigerating room air duct that blows cool air to the refrigerating room, and a switching room
  • a duct device having a switching chamber air duct that blows cool air to the cooling chamber, a refrigeration chamber return duct that returns the cold air discharged into the refrigeration chamber to the cooler, and a partition wall that divides the refrigeration chamber and the switching chamber vertically
  • a discharge duct portion that discharges cold air to the switching chamber is provided on the lower surface of the partition wall, and is connected to a switching chamber air duct of a duct device installed on the back surface of the switching chamber.
  • FIG. 1 is a longitudinal sectional view of a refrigerator in an embodiment of the present invention.
  • FIG. 2 is a front view of the refrigerator in the embodiment of the present invention.
  • FIG. 3 is a schematic diagram illustrating the air path of the refrigerator in the embodiment of the present invention.
  • FIG. 4 is a perspective view of a partition wall of the refrigerator in the embodiment of the present invention.
  • FIG. 5 is an exploded perspective view of the partition wall of the refrigerator in the embodiment of the present invention.
  • FIG. 6 is a perspective view of the refrigerator duct device according to the embodiment of the present invention.
  • FIG. 7 is an exploded perspective view of the refrigerator duct device according to the embodiment of the present invention.
  • FIG. 8 is an exploded perspective view of the refrigerator duct device according to the embodiment of the present invention.
  • FIG. 1 is a longitudinal sectional view of a refrigerator in an embodiment of the present invention.
  • FIG. 2 is a front view of the refrigerator in the embodiment of the present invention.
  • FIG. 3 is a schematic diagram
  • FIG. 9 is an exploded perspective view of the refrigerator duct device according to the embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a duct device for a refrigerator in an embodiment of the present invention.
  • FIG. 11 is a schematic perspective view showing the first partition wall and the first cover of the refrigerator in the embodiment of the present invention.
  • FIG. 12 is a perspective view of main parts of the first cover of the refrigerator in the embodiment of the present invention.
  • FIG. 13 is an explanatory diagram of relevant parts near the cooling chamber of the refrigerator in the embodiment of the present invention.
  • FIG. 14 is a cross-sectional view of a conventional refrigerator.
  • FIG. 1 is a longitudinal sectional view of a refrigerator according to an embodiment of the present invention.
  • FIG. 2 is a front view of the refrigerator in the embodiment of the present invention.
  • the heat insulating box 31 of the refrigerator 30 is mainly composed of an outer box 32 using a steel plate and an inner box 33 formed of a resin such as ABS.
  • the material 34 is insulated from the surroundings by being filled between the outer box 32 and the inner box 33.
  • the heat insulation box 31 is divided into a plurality of storage rooms.
  • a refrigerator compartment 35 is disposed at the top of the heat insulation box 31
  • a switching chamber 36 is disposed at the bottom of the refrigerator compartment 35
  • a freezer compartment 37 is disposed at the bottom.
  • the switching chamber 36 and the freezing chamber 37 are partitioned vertically by a first partition wall 41.
  • the refrigerating chamber 35 and the switching chamber 36 are partitioned up and down by a partition wall 42, and formed at a front end portion (switching chamber door 39 side) of the partition wall 42 as a separate member from the partition wall 42, and inside is a synthetic resin member
  • a partition plate 80 having a heat insulating member such as polystyrene foam is provided.
  • a dew proof pipe (not shown) is embedded in the partition plate 80 so that condensation does not occur on the surface of the partition plate 80.
  • a refrigerator compartment door 38 is provided at the front opening of the refrigerator compartment 35, a switching compartment door 39 is provided at the front opening of the switching compartment 36, and a freezer compartment door 40 is provided at the front opening of the freezing compartment 37.
  • the refrigerated room 35 can be normally set at 1 ° C. to 5 ° C. with the lower limit of the temperature at which food is not frozen for refrigerated storage.
  • the switching chamber 36 can switch the temperature from the refrigeration temperature zone to the refrigeration temperature zone, and can be set from -18 to 4 ° C at 1 ° C intervals.
  • the freezer room 37 is usually set in a freezing temperature range of ⁇ 22 ° C. to ⁇ 15 ° C. for freezing storage, and further set to a low temperature of, for example, ⁇ 30 ° C. or ⁇ 25 ° C. to improve the frozen storage state. Can be made.
  • an aluminum foil heater (not shown) provided on the upper surface of the first partition wall 41 is energized to set the switching chamber 36 at a predetermined temperature.
  • the interior of the refrigerator compartment 35 is divided into a plurality of upper and lower parts by a plurality of shelves 61, and a vegetable compartment 64 is provided in the lower part of the refrigerator compartment 35.
  • the vegetable compartment 64 is composed of an open / close lid 64a formed on the front surface and a vegetable case 64b that can be pulled out in the front-rear direction, and a refrigerator compartment duct 81 is provided on the back surface of the vegetable compartment 64.
  • the vegetable compartment 64 demonstrated in the example which has an opening part in the front surface, it is good also as a structure which accommodates the box case which has an opening part in an upper surface and can be sealed with the upper surface cover provided in the opening part. .
  • the width of the vegetable compartment 64 is usually configured to be smaller than the overall width in the refrigerator compartment 35, it need not be limited to this configuration. That is, you may comprise the width
  • an upper drawer case 69 and a lower drawer case 70 are provided so as to be movable in the front-rear direction.
  • the upper drawer case 69 includes an upper surface opening 69a on the top surface, a bottom surface portion 69b on the bottom surface, and a back wall 69c on the back surface.
  • the lower drawer case 70 includes an upper surface opening 70a on the top surface, a bottom surface portion 70b on the bottom surface, and a back wall 70c on the back surface.
  • a refrigeration chamber 35 and a duct device 49 for blowing cool air to the switching chamber 36 are provided on the back surface of the switching chamber 36.
  • a damper device 50 for adjusting the amount of cool air to be blown to the refrigerating chamber 35 and the switching chamber 36 is included.
  • a control board 66 that controls the entire refrigerator 30 is disposed in the outer box 32 on the back side of the switching chamber 36.
  • a cooling chamber 43 that generates cold air is provided on the back side of the freezing chamber 37, and a cooler 44 is disposed inside the cooling chamber 43.
  • the cooling chamber 43 is thermally insulated by a first cover 45 that partitions from the freezing chamber 37.
  • a fan 46 that forcibly blows the generated cold air is disposed above the cooler 44, and a defrost heater 47 that defrosts frost and ice adhering to the cooler 44 is disposed below the cooler 44.
  • the defrost heater 47 is specifically made of a glass tube heater made of glass, and in particular, when the refrigerant of the cooler 44 is a hydrocarbon-based refrigerant gas, a double glass tube in which glass tubes are formed in a double manner for explosion protection. A heater is used.
  • a water supply tank 53 of an automatic ice making device is provided beside the vegetable room 64 in the lower part of the refrigerating room 35 (for example, the left side), and an ice tray 54 is provided above the freezing room 37. Yes.
  • the water supply tank 53 stores water for automatic ice making and is detachably stored.
  • a water supply pipe 55 connected to the water supply tank 53 extends from the refrigerator compartment 35 to the freezer compartment 37 through the switching chamber 36. Water in the water supply tank 53 is sucked up by a motor (not shown) and guided into the water supply pipe 55.
  • FIG. 3 is a schematic diagram illustrating the air path of the refrigerator in the embodiment of the present invention.
  • a discharge port 35 a for discharging cool air to the refrigerating chamber 35 and a refrigerating chamber return port 35 b for returning the cool air in the refrigerating chamber 35 to the cooler 44 are formed on the back surface of the refrigerating chamber 35. ing.
  • an upper discharge port 36a for discharging cool air to the switching chamber 36 is disposed above the upper opening 69a (see FIG. 1) of the upper drawer case 69.
  • the lower discharge port 36b that opens to the duct device 49 and discharges cool air to the switching chamber 36 is formed above the upper surface opening 70a of the lower drawer case 70 and between the bottom surface 69b (see FIG. 1). Has been.
  • the lower discharge port 36b may be provided at a position facing the rear wall 69c by inclining the rear wall 69c (see FIG. 1) of the upper drawer case 69 forward of the lower drawer case 70.
  • the back wall 69c of the upper drawer case 69 serves as a guide plate for the cool air discharged from the lower discharge port 36b, and the cool air can be efficiently guided into the lower drawer case 70.
  • a switching chamber return port 36c for returning the cool air in the lower drawer case 70 of the switching chamber 36 to the cooler 44 is provided between the upper surface opening 70a and the bottom surface portion 70b of the lower drawer case 70a. It is formed between.
  • a refrigerating room temperature sensor 67 for detecting the temperature of the refrigerating room 35 is installed in the refrigerating room return port 35b, and a switching room temperature sensor 68 for detecting the temperature of the switching room 36 is provided in the switching room return port 36c. Is installed.
  • the air duct 48 in the duct device 49 is provided with a refrigerating room air duct 48 a that sends cool air to the refrigerating room 35 and a switching room air duct 48 b that blows cold air to the switching room 36 side by side. And communicated in the vertical direction.
  • the refrigerating room air duct 48a is configured on the back surface of the switching room 36, communicates with the refrigerating room duct 81 in the vertical direction, and a refrigerating room discharge port 62 is formed corresponding to the shelf 61 of each refrigerating room 35.
  • a damper device 50 for adjusting the amount of cold air to the refrigerator compartment 35 and the switching chamber 36 is provided in the duct device 49.
  • a refrigeration room damper 50a is provided in the refrigeration room air duct 48a
  • a switching room damper 50b is provided in the switching room air duct 48b, respectively, and the amount of cold air passing therethrough is controlled separately.
  • the duct device 49 is formed on the back surface of the switching chamber 36 in the same size as the area of the back surface of the switching chamber 36.
  • the refrigerating room air duct 48 a and the switching room air duct 48 b are arranged in the left and right width direction of the switching room 36, that is, near the center in the width direction of the duct device 49.
  • the refrigerating room return duct 51a and the switching room return duct 51b are provided on one side of a duct device 49 centered on the refrigerating room air duct 48a and the switching room air duct 48b.
  • the refrigerator compartment return duct 51a is arranged side by side with the air duct 48.
  • the duct device 49 is provided with three ducts, ie, a refrigerating room air duct 48a, a switching room air duct 48b, and a refrigerating room return duct 51a, which communicate with each other in the vertical direction and are arranged side by side.
  • the switching chamber return duct 51b is adjacent to the refrigeration chamber return duct 51a and has a front-rear positional relationship with respect to the door direction. It arrange
  • the refrigerating room return duct 51 a and the switching room return duct 51 b are provided so as to communicate with the lower part of the cooler 44 through the region of the freezing room 37 having a lower temperature zone than the switching room 36 and the refrigerating room 35. .
  • the refrigerating room return duct 51 a whose return cold air temperature is higher than the temperature range of the freezing room 37 is arranged at a position away from the freezing room 37.
  • the switching chamber return duct 51b of the switching chamber 36 that can be set from a temperature close to the temperature of the freezer compartment 37 to a temperature close to the refrigerator temperature is arranged in front of the refrigerator compartment return duct 51a (on the switching chamber door 39 side). In addition, condensation and freezing in the refrigerator compartment return duct 51a can be reduced.
  • FIG. 4 is a perspective view of a partition wall of the refrigerator in the embodiment of the present invention.
  • FIG. 5 is an exploded perspective view of the partition wall of the refrigerator in the embodiment of the present invention.
  • the partition wall 42 that partitions the refrigerating chamber 35 and the switching chamber 36 formed of a synthetic resin material includes an upper surface cover member 42d, a heat insulating plate 42a, and a discharge duct plate 42b. And the lower surface cover member 42c.
  • the upper surface of the heat insulating plate 42a is covered with an upper surface cover member 42d, and the discharge duct plate 42b formed on the lower surface of the heat insulating plate 42a is provided separately from the heat insulating plate 42a and forms a guide wall to the switching chamber 36. is doing. And the lower surface side of the heat insulation board 42a and the discharge duct board 42b is covered by the lower surface cover member 42c formed in the lower surface of the discharge duct board 42b.
  • a discharge duct portion 42f that is connected to the switching chamber air duct 48b of the duct device 49 installed on the back surface of the switching chamber 36 and discharges cool air to the switching chamber 36 is integrally formed, for example. Has been.
  • a simple air passage structure that allows cool air to flow from the switching chamber air duct 48b in the duct device 49 on the back surface of the switching chamber 36 to the discharge duct portion 42f is configured, and the cold air is uniformly distributed in the switching chamber 36. It is possible to cool the interior of the switching chamber 36 to a predetermined temperature more reliably.
  • the discharge duct portion 42f is formed by a step portion 42e so as to be disposed on the upper surface opening 69a (see FIG. 1) of the upper drawer case 69 of the switching chamber 36, and the upper discharge portion for discharging cool air to the step portion 42e.
  • An outlet 36a is provided.
  • the upper discharge port 36a may be one, it is preferable that the upper discharge port 36a includes a plurality of discharge ports.
  • a plurality of upper discharge ports 36a provided in the discharge duct portion 42f of the lower surface cover member 42c are provided so as to be smaller than the opening area of one opening 42g provided in the discharge duct plate 42b. Accordingly, it is possible to prevent foreign matter from entering the upper discharge port 36 a and to discharge cold air uniformly into the upper drawer case 69.
  • the stepped portion 42e may not be formed on the lower surface of the lower surface cover member 42c.
  • the upper discharge port 36a may be provided on the same surface as the lower surface cover member 42c. With this configuration, the volumetric efficiency of the upper drawer case 69 of the switching chamber 36 is improved.
  • each duct portion is in the middle. Cold air can be guided without leaking outside. As a result, the cool air can be efficiently diverted to the refrigerating room 35 and the switching room 36 while suppressing an increase in air path resistance, and a refrigerator excellent in energy saving performance can be realized.
  • the partition plate 80 is arranged in the left-right width direction of the inner box 33 before filling the heat insulating box 31 with the foam heat insulating material 34, and is filled and fixed with the foam heat insulating material 34. At this time, the gasket of the refrigerator compartment door 38 and the gasket of the switching compartment door 39 are brought into close contact with the partition plate 80 so that the indoor cold air does not leak to the outside.
  • partition wall 42 installed behind the partition plate 80 is installed behind the partition plate 80 before filling the heat insulating box 31 with the foam heat insulating material 34, and the foam heat insulating material 34 is placed inside the heat insulating box 31. Filled and fixed.
  • the first partition wall 41 is also fixed by filling the heat insulating box 31 with the foam heat insulating material 34.
  • a duct device 49 is disposed on the back surface of the switching chamber 36 between the first partition wall 41 and the partition wall 42, and the discharge duct portion 42f of the first partition wall 41 and the duct device 49 are connected. This simplifies the configuration of the duct device in the switching chamber 36, reduces variations in installation of the duct device, and facilitates assembly.
  • FIG. 6 is a perspective view of the refrigerator duct device according to the embodiment of the present invention.
  • the cool air from the refrigerating chamber 35 is returned to the duct device 49.
  • the refrigerating chamber air duct 48 a that blows cool air to the refrigerating chamber 35, the switching chamber air duct 48 b that blows cool air to the switching chamber 36, and the cold air from the refrigerating chamber 35 are returned.
  • the refrigerator compartment return ducts 51a are independently arranged in a line in a row.
  • each storage chamber can be indirectly and efficiently cooled by one cooler 44.
  • the air path resistance does not increase, it is not necessary to increase the cross-sectional area of the air path.
  • positions horizontally and in a line the depth dimension of the switching chamber 36 can be increased and storage capacity can be enlarged.
  • the refrigerator 30 having the duct device 49 for allowing the cold air to flow into the refrigerating chamber 35 and securing the storage capacity.
  • a recess 56 for accommodating the water supply pipe 55 is provided on the right side of the duct device 49.
  • An aluminum foil heater 57 is provided on the wall surface of the duct in the refrigerating room return duct 51 a formed at the lower left part of the duct device 49.
  • the aluminum foil heater 57 energizes the aluminum foil heater 57 and controls it to a predetermined temperature when the switching chamber 36 is set to a refrigeration temperature zone where the temperature is lower than the refrigeration temperature zone, or when the outside air temperature is low.
  • the cold air including moisture after circulating through the refrigerator compartment 35 passing through the refrigerator compartment return duct 51a has a higher temperature than the cold air led to the switching chamber return duct 51b.
  • the inside of the refrigerating room return duct 51a is cooled, and there is a possibility that the cold air containing moisture after circulating through the refrigerating room 35 is condensed or frozen. Therefore, the aluminum foil heater 57 is energized to prevent freezing and dew condensation in the refrigerator return duct 51a.
  • FIG. 7 is an exploded perspective view of the refrigerator duct device according to the embodiment of the present invention.
  • the left side of FIG. 7 shows the front surface which is the door side
  • the right side shows the back surface which is the opposite side to the door side.
  • the duct device 49 includes an upper duct member 49a and a lower duct member 49b formed from, for example, polystyrene foam, and a resin duct decorative plate that covers the front surfaces of the upper duct member 49a and the lower duct member 49b. 49c.
  • the lower surface portion of the upper duct member 49a and the upper surface portion of the lower duct member 49b are connected in the vertical direction.
  • the connection surface of the upper duct member 49a and the lower duct member 49b is sealed, and the front surface is covered with the duct decorative plate 49c.
  • the refrigerating room air duct 48a and the switching room air duct 48b shown in FIG. 6 penetrating through the duct device 49 constitute a duct wall surface by connecting the upper duct member 49a and the lower duct member 49b.
  • the damper device 50 is included in the lower duct member 49b as described below with reference to FIG.
  • FIG. 8 is an exploded perspective view of the refrigerator duct device according to the embodiment of the present invention.
  • the front side of FIG. 8 has shown the back surface which is the opposite side to a door side, and the front side whose rear side is a door side.
  • the damper device frame 50c of the damper device 50 is embedded so as to be disposed below the seal connecting portion 49d of the lower duct member 49b serving as a connection surface with the upper duct member 49a.
  • the seal connection portion 49d of the lower duct member 49b serves as a connection surface with the upper duct member 49a of the duct device 49.
  • the seal connecting portion 49d is located below the upper surface opening 70a of the lower drawer case 70 shown in FIG. 1 and above the bottom surface portion 70b, and at a position corresponding to the back wall 70c of the lower drawer case 70. Is provided.
  • FIG. 9 is an exploded perspective view of the refrigerator duct device according to the embodiment of the present invention.
  • the left side of FIG. 9 shows the back surface on the opposite side to the door side
  • the right side shows the front surface on the door side.
  • production of the clearance gap between the components of the refrigerator compartment ventilation duct 48a, the switching chamber ventilation duct 48b, the refrigerator compartment return duct 51a, the 1st division wall 41, and the division wall 42 is prevented.
  • one seal member 79 having a length around the periphery of each duct opening is attached along the duct opening, but an integrated seal member with a hole is attached.
  • a hole may be made at the position of each duct opening.
  • the seal surface to which the seal member 79 is attached is a flat surface having no step on the mounting surface.
  • a wiring storage portion 52 and a concave portion 56 are provided in the front-rear direction with respect to the door side.
  • the water in the water supply pipe 55 may be frozen. Therefore, freezing may be prevented by providing a heater for preventing freezing (not shown) and energizing the outer periphery of the water supply pipe 55, for example.
  • the water supply pipe 55 may be disposed between the inner box 33 of the heat insulating box 31 and the duct device 49 and insulated by a recess 56 formed on the back surface of the duct device 49.
  • the wiring storage portion 52 may be provided on the back surface of the duct device 49 to store the wiring and connectors of the damper device 50.
  • the formation of the concave portion 56 and the wiring storage portion 52 can reduce the storage space in the front-rear direction necessary for the water supply pipe 55 and the wiring storage portion 52 and increase the internal volume of the switching chamber 36. Moreover, the recessed part 56 and the wiring accommodating part 52 are provided in the other side of the refrigerator compartment return duct 51a of the duct apparatus 49, and a heat insulation fall is prevented.
  • FIG. 10 is a schematic diagram of the duct device of the refrigerator in the embodiment of the present invention.
  • FIG. 10 shows the refrigerator duct device as viewed from the front side, which is the door side, toward the back side, which is the opposite side to the door side.
  • the wiring storage portion 52 is configured by a stepped portion 74 formed between the upper duct member 49a or the lower duct member 49b and the duct decorative plate 49c.
  • the wiring accommodating part 52 is connected via the seal connection part 49d of the upper duct member 49a and the lower duct member 49b.
  • the wiring storage portion 52 is formed in the upper duct member 49a and the lower duct member 49b in front of the recess 56 for storing the water supply pipe 55.
  • the outer periphery of the upper duct member 49a and the lower duct member 49b has a structure in which the duct member is inclined so that the cross-sectional areas of the upper duct member 49a and the lower duct member 49b increase toward the seal connecting portion 49d.
  • the side surface portion of the upper duct member 49a is formed in a gradient shape (taper) that spreads from the upper surface portion toward the lower surface portion.
  • the side surface portion of the lower duct member 49b is formed in a gradient shape (taper) that widens toward the upper surface portion from the lower surface portion.
  • the stepped portion 74 is easily secured between the seal connecting portion 49d and the duct decorative plate 49c, it is formed from the outside to the inside across the upper duct member 49a and the lower duct member 49b formed of, for example, styrene.
  • the recess is referred to as a wiring storage portion 52.
  • the invalid space of the duct device 49 can be effectively used as the wiring storage portion 52.
  • water can be prevented from entering the wiring, and the effective internal volume of the switching chamber 36 can be improved.
  • the refrigerating room air duct 48a and the switching room air duct 48b are provided near the center in the width direction of the duct device 49, and the refrigerating room return duct 51a is provided on one side of the duct device 49.
  • the switching chamber return duct 51 b is arranged in the front-rear direction with respect to the heat insulating box 31.
  • a water supply pipe 55 connected to the water supply tank 53 and a wiring storage portion 52 are arranged on the other side of the duct device 49.
  • the refrigerating room air duct 48a allows each duct portion to pass from the duct device 49 of the switching room 36 to the branch path 63 in the refrigerating room 35 without meandering in a substantially vertical direction. Can be formed. Therefore, the air path resistance in each duct part can be reduced, and cold air can be supplied to the refrigerator compartment 35 with a sufficient air volume.
  • FIG. 11 is a schematic perspective view showing the first partition wall 41 and the first cover 45 of the refrigerator in the embodiment of the present invention.
  • the first partition wall 41 connected to the lower surface portion of the duct device has a refrigerating room return communication port 58 communicating with the refrigerating room return duct 51 a and a switching chamber communicating with the switching room return duct 51 b.
  • a return communication port 59 is provided.
  • the switching room return communication port 59 is arranged on the door side, and the refrigeration room return communication port 58 is arranged on the side opposite to the door side, and is provided through the openings provided in the refrigeration room return communication port 58 and the switching room return communication port 59. And communicated with the cooling chamber 43.
  • the first partition wall 41 includes a first partition wall member 41a formed of foamed polystyrene, a first upper surface partition cover 41b that covers the upper surface of the first partition wall member 41a, and a first cover that covers the lower surface of the first partition wall member 41a. 1 lower surface section cover 41c.
  • the 1st division wall 41 is being fixed to the heat insulation box 31 by filling urethane between the 1st upper surface division cover 41b and the 1st lower surface division cover 41c.
  • the first partition wall 41 is assembled at a predetermined position before filling the heat insulating box body 31 with urethane, and further, the urethane filling the heat insulating box body 31 is also used for fixing the first partition wall 41, thereby insulating the refrigerator 30. Increases performance.
  • the first cover 45 is formed of a resin decorative plate 45a and a second cover 45b in which a holding portion of the fan 46 and a cold air passage are formed by a heat insulating material such as a styrene material.
  • a cool air discharge port 72 for sending cool air to the refrigerating chamber 35 and the switching chamber 36 is sealed and communicated with the first partition wall 41 on the back surface of the decorative plate 45a so that the refrigerating chamber return cold air and the switching chamber return cold air merge.
  • a shunt duct 76 that shunts is provided.
  • the shunt duct 76 provided in the upstream portion of the cold air return passage 71 does not flow the cold air that has passed through the refrigerating chamber return duct 51a downward, but flows backward to the switching chamber return communication port 59, and the switching chamber return port of the duct device 49.
  • the reverse flow from 36c into the switching chamber 36 is prevented.
  • the diversion duct 76 acts as a backflow prevention duct, and the refrigeration chamber return cold air is prevented from flowing back from the switching chamber return port 36 c to the switching chamber 36 through the switching chamber return communication port 59.
  • the switching chamber 36 can be efficiently cooled to a predetermined temperature, and condensation or the like can be prevented.
  • FIG. 12 is a perspective view of an essential part of the first cover 45 of the refrigerator in the embodiment of the present invention.
  • the first cover 45 is provided in front of the cooler 44 shown in FIG. 1, for example, and the cool air return passage 71 is partitioned by the cooler 44, the partition member 75, and the back wall of the cooling chamber 43. Is formed.
  • the first cover 45 includes a fan 46, and a cold air discharge port 72 that sends cold air to the refrigerating chamber 35 and the switching chamber 36. Further, a cold air discharge port 72 is formed between the fan 46 and the cold air return passage 71, and a partition member 75 is provided between the cold air discharge port 72 and the cold air return passage 71.
  • a diversion duct 76 is formed which is sealed and communicated with the first partition wall 41 and divides the cold chamber return cold air and the switching chamber return cold air so as not to merge.
  • a diversion duct 76 connected to the switching chamber return communication port 59 is formed so as to divert the switching chamber return cold air from the refrigeration chamber return cold air. Then, by forming the diversion duct 76 only on the upstream side of the cold air return passage 71, the cold room return cold air (arrow B) and the switching chamber return cold air (arrow D) merge from the middle of the cold air return passage 71. It is configured.
  • the diversion duct 76 functions as a backflow prevention duct.
  • the shunt duct 76 is formed only in the upstream portion in order to secure the opening cross-sectional area of the cold air return passage 71. However, if the opening cross-sectional area on the downstream side of the cold air return passage 71 can be secured, it is extended to the downstream portion. In this case, the backflow prevention effect can be enhanced.
  • a cold air return port 77 through which the cold air passing through the cold air return passage 71 returns to the lower portion of the cooler 44 is provided at the lower portion of the lower end portion 75a of the partition member 75, and the lower end portion 75a is opened.
  • FIG. 13 is an explanatory diagram of a main part near the cooling chamber 43 of the refrigerator in the embodiment of the present invention.
  • a cold air return port 77 through which the cold air passing through the cold air return passage 71 returns to the lower portion of the cooler 44 is provided at the lower part of the partition member 75.
  • the end portion of the defrost heater 47 disposed almost horizontally below the cooler 44 protrudes from one end portion of the cooler 44 and extends into the cool air return passage 71 through the cool air return port 77. is doing.
  • a part of the cold air generated by the cooler 44 in the cooling chamber 43 is forcibly blown forward by the fan 46, and the freezing chamber 37 is cooled by the cold air discharged from the discharge port of the first cover 45.
  • the cold air is led to the lower part of the cooler 44 through a return port opened at the lower part of the first cover 45, is heat-exchanged by the cooler 44, and is circulated by the fan 46 again.
  • the freezer compartment 37 is controlled to a predetermined temperature by control of a freezer compartment sensor (not shown).
  • the cool air discharged above the fan 46 is guided from the cool air discharge port 72 of the first cover 45 to the duct device 49 through the communication hole of the first partition wall 41.
  • the refrigerating room temperature sensor 67 determines that the room temperature is equal to or higher than the set temperature
  • the refrigerating room damper 50a of the damper device 50 is opened, and the cold air is discharged from the refrigerating room outlet 35a through the refrigerating room air duct 48a. And cooled (arrow A in FIG. 3).
  • the cold air which cooled the refrigerator compartment 35 turns into the air in the refrigerator compartment 35, and the air which got the moisture contained in a store, and is guide
  • the cool air passes through a cool air return passage 71 formed by the refrigerating chamber return duct 51 a of the duct device 49, the first cover 45, and the back wall of the cooling chamber 43 in this order, and then passes from the cold air return port 77 to the lower part of the cooler 44. Led to. Then, heat exchange with the cooler 44 is performed, and the cool air is forcibly blown by the fan 46 again.
  • the refrigerating room 35 can be easily cooled even if it is arranged at a position away from the cooler 44 by forcibly blowing cool air to the refrigerating room blower duct 48 a communicating with the cooler 44 by the fan 46. That is, cold air is discharged to the refrigerating room 35 through the refrigerating room air duct 48a in the duct device 49, and the opening and closing of the refrigerating room damper 50a is controlled by the refrigerating room temperature sensor 67 to control the room to the set temperature.
  • the switching chamber damper 50b of the damper device 50 is opened, and cool air is discharged into the switching chamber 36.
  • the cold air discharged into the switching chamber 36 is discharged from the upper outlet 36a provided above the upper opening 69a of the upper drawer case 69 through the switching chamber air duct 48b, and passes through the upper drawer case 69. Cooling.
  • Cold air is discharged into the lower drawer case 70 of the switching chamber 36 from a lower outlet 36b provided at a position higher than the upper surface opening 70a of the lower drawer case 70 (arrow C in FIG. 3).
  • the back wall 69 c of the upper drawer case 69 acts as a guide for regulating the flow of cold air, and cool air is introduced into the lower drawer case 70.
  • the cold air circulated in the switching chamber 36 is guided to the switching chamber return port 36c and passes through the switching chamber return duct 51b and passes through the switching chamber return communication port 59 (arrow D in FIG. 3). Thereafter, the cold air is guided to the lower part of the cooler 44 through the diverting duct 76 formed in the first cover 45 and from the cool air return port 77 to exchange heat with the cooler 44. Forcibly blown by.
  • the fan 46 forcibly blows cool air to the switching chamber air duct 48 b communicating with the cooler 44 and passes through the duct device 49 to switch the switching chamber. Cool air is discharged to 36. Further, since the switching chamber temperature sensor 68 controls the opening and closing of the switching chamber damper 50b, the inside of the switching chamber 36 can be controlled to the set temperature.
  • the switching chamber 36 can switch the set temperature from the -18 ° C. freezing temperature zone to the 4 ° C. refrigeration temperature zone by controlling the opening rate of the switching chamber damper 50b.
  • the cool air discharged from the upper discharge port 36a and the lower discharge port 36b of the switching chamber 36 passes through the switching chamber return port 36c and is switched to the switching chamber. It introduces into the return duct 51b.
  • the cold air passing through the refrigerating room return duct 51a has a higher temperature than the cold air passing through the switching room return duct 51b, condensation may occur on the duct surface of the refrigerating room return duct 51a.
  • the condensed water may be frozen, or the condensed water may flow in the refrigerating chamber return duct 51a and freeze in the cold air return passage 71. Therefore, the aluminum foil heater 57 provided in the refrigerating room return duct 51a is operated, and even if condensed water is generated, the inside of the duct can be prevented from freezing by evaporating.
  • the present invention communicates the refrigerating room air duct 48a, the switching room air duct 48b, and the refrigerating room return duct 51a independently in the vertical direction, and in the left, right, side, and line. Further, the discharge duct portion 42f of the partition wall 42 that discharges cool air to the switching chamber 36 and the switching chamber air duct 48b of the duct device 49 installed on the back surface of the switching chamber 36 are connected. .
  • the refrigerator 30 can be realized.
  • the refrigerator according to the present invention can also be applied to a household or commercial refrigerator that has high volumetric efficiency and requires energy saving.

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Réfrigérateur comportant : un compartiment de stockage à froid ; un compartiment de congélation ; un compartiment convertible ; un refroidisseur ; un ventilateur placé au-dessus du refroidisseur ; un dispositif à conduit muni d'un conduit d'air pour compartiment de stockage à froid servant à souffler de l'air froid dans le compartiment de stockage à froid, d'un conduit d'air pour compartiment convertible servant à souffler de l'air froid dans le compartiment convertible, et d'un conduit de retour du compartiment de stockage à froid servant à ramener au refroidisseur l'air froid qui a été refoulé dans le compartiment de stockage à froid ; et une cloison séparatrice servant à séparer le compartiment de stockage à froid du compartiment convertible de telle manière que les compartiments soient placés verticalement l'un sur l'autre. Une section de conduit de refoulement servant à refouler l'air froid dans le compartiment convertible est installée à la surface inférieure de la cloison séparatrice et est reliée au conduit d'air pour compartiment convertible du dispositif à conduit disposé sur la surface arrière du compartiment convertible.
PCT/JP2011/003401 2010-07-12 2011-06-15 Réfrigérateur WO2012008092A1 (fr)

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CN201180034557.1A CN103003650B (zh) 2010-07-12 2011-06-15 冷藏库

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JP2010157468A JP5625561B2 (ja) 2010-07-12 2010-07-12 冷蔵庫

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JP6405526B2 (ja) * 2014-05-22 2018-10-17 パナソニックＩｐマネジメント株式会社 冷蔵庫
CN104634046B (zh) * 2014-12-26 2017-08-25 海信容声(广东)冰箱有限公司 风冷冰箱
US11512888B2 (en) 2018-03-02 2022-11-29 Electrolux Do Brasil S.A. Air passageways in a variable climate zone compartment
WO2019165515A1 (fr) 2018-03-02 2019-09-06 Electrolux Do Brasil S.A. Appareil de chauffage dans un compartiment à zone climatique variable
WO2019165519A1 (fr) 2018-03-02 2019-09-06 Electrolux Do Brasil S.A. Ensemble passage d'air unique et amortisseur dans un compartiment de zone climatique variable
JP7389615B2 (ja) * 2019-11-01 2023-11-30 日立グローバルライフソリューションズ株式会社 冷蔵庫
CN111493593B (zh) * 2020-04-27 2021-09-03 海信容声(广东)冷柜有限公司 一种冷藏陈列柜及其控制方法

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Also Published As

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JP5625561B2 (ja) 2014-11-19
CN103003650B (zh) 2015-07-15
JP2012021658A (ja) 2012-02-02
CN103003650A (zh) 2013-03-27
CN102338528A (zh) 2012-02-01
EP2594871A4 (fr) 2016-01-20
EP2594871B1 (fr) 2018-05-30
CN102338528B (zh) 2015-04-29
EP2594871A1 (fr) 2013-05-22

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