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WO2012001849A1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
WO2012001849A1
WO2012001849A1 PCT/JP2011/002019 JP2011002019W WO2012001849A1 WO 2012001849 A1 WO2012001849 A1 WO 2012001849A1 JP 2011002019 W JP2011002019 W JP 2011002019W WO 2012001849 A1 WO2012001849 A1 WO 2012001849A1
Authority
WO
WIPO (PCT)
Prior art keywords
duct
refrigerator
seal
cold air
compartment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2011/002019
Other languages
English (en)
Japanese (ja)
Inventor
愼一 堀井
利幸 森内
綾一 小野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Priority to CN201180031785.3A priority Critical patent/CN102959350B/zh
Publication of WO2012001849A1 publication Critical patent/WO2012001849A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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 cools a plurality of storage rooms having different temperature zones by forcibly circulating cool air generated by a cooler.
  • FIG. 18 is a longitudinal sectional view of a conventional refrigerator.
  • the cabinet 1 is a refrigerator composed of 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 refrigerator compartment 6, a storage room 7, and a freezer compartment 8 from the top.
  • a refrigerator compartment opening / closing door 9, a greenhouse holding door 10, and a freezer compartment opening / closing door 11 are arranged.
  • the refrigerating room 6 and the storage room 7 are partitioned by a partition plate 12 having heat insulating performance.
  • the warm room 7 and the freezer compartment 8 are partitioned by a partition plate 13 having heat insulation performance.
  • a duct 14 connected to the freezer compartment 8 is installed in the back of the partition plate 13.
  • a refrigerator compartment shelf for storing food and a refrigerator compartment case are arranged in the refrigerator compartment 6.
  • a tube-on-sheet 15 evaporator
  • the inside of the refrigerator compartment 6 is directly cooled by the tube on sheet 15.
  • a cooler 16 is disposed on the back of the freezer compartment 8, and a fan 17 is disposed above the cooler 16.
  • thermo storage room 7 a thermal storage case for storing food is stored.
  • a duct 18 having a damper 19 inside is disposed behind the warming chamber 7.
  • the cooling of the refrigerator compartment 6 is mainly performed by the tube on sheet 15.
  • the tube-on-sheet 15 is in contact with the back surface of the inner box 5 of the refrigerator compartment 6, and the surface of the inner box 5 corresponding to the refrigerator compartment 6 functions as a cooling wall surface.
  • the inside of the refrigerator compartment 6 is cooled by natural cooling.
  • the freezer compartment 8 is cooled by forcibly circulating the cool air of the cooler 16 in the cooling compartment by the fan 17.
  • the cold air circulated in the freezer compartment 8 returns to the cooler 16.
  • the cooling chamber 7 is cooled by the fan 17, part of the cold air flows into the duct 14 and circulates to the duct 18 at the back of the chamber 7.
  • the cold air that has flowed into the duct 18 passes through the damper 19, is discharged into the storage room case, exchanges heat with the air in the storage room case, and then is sucked into the return duct to the cooler 16 on the back surface. Returned to
  • the refrigerating room 6 and the storage room 7 are divided into upper and lower portions by the partition plate 12. That is, a passage through which cool air flows is not formed between the refrigerator compartment 6 and the storage room 7.
  • the refrigerator compartment 6 is cooled to an appropriate temperature by cooling the tube-on-sheet 15.
  • the warming chamber 7 is cooled by circulating the latent heat of evaporation of the cooler 16 into the warming chamber 7 by the fan 17.
  • the temperature in the temperature-retaining chamber 7 is controlled to be constant by detecting the temperature in the temperature-retaining chamber 7 and controlling the amount of cool air circulating with a damper. Thereby, it becomes possible to keep the temperature of the foodstuff in the heat storage room 7 constant, and the freshness of foodstuff can be improved (for example, refer patent document 1).
  • the inside of the duct 18 is divided into a plurality of passages so as to be diverged in various ways, and communicates with a plurality of outlets 20 provided on the top surface of the warming chamber 7 to cool air. It has a structure for discharging. Therefore, the structure of the duct 18 becomes complicated, the air path resistance in the duct 18 increases, and even if it is guided by the fan 17 from the cooler 16, a predetermined amount of cold air cannot be discharged to the thermal storage chamber 7, and an appropriate temperature cannot be secured. There was a fear.
  • the present invention solves the above-mentioned conventional problems, and while simplifying the cooling air passage while configuring a duct having a cold air passage for cooling the refrigerator compartment on the back surface, ensuring an appropriate air flow, It aims at providing the refrigerator which has a duct apparatus which maintained the depth dimension and secured the internal volume.
  • the refrigerator of the present invention includes a partition that divides a refrigerator compartment and a freezer compartment into upper and lower parts, and a cooling compartment disposed behind the freezer compartment, and the cooling compartment Includes a cooler that generates cold air and a fan that is disposed above the cooler and forcibly blows the generated cold air to the refrigerator compartment and the freezer compartment.
  • a refrigerator having a refrigerator air duct that guides to the refrigerator compartment and a duct device having a refrigerator return duct for returning the cool air discharged into the refrigerator compartment to the refrigerator chamber, wherein the cool air in the duct is
  • a seal reinforcing structure that reinforces the seal is provided at a seal connecting portion that connects and seals the duct device and another member so as not to leak outside.
  • the duct device is intended to strengthen the seal connection portion with the partition wall and the inner box, and the risk of cold air passing through the duct from the seal connection portion of the duct formed in the duct device can be reduced to the outside. It is possible to improve the reliability around the duct device and to ensure an appropriate air volume to each storage room.
  • the refrigerator of the present invention has improved the seal connection part with the main body side of the duct device, thereby reducing the cool air in the duct from leaking to the outside, improving the cooling efficiency, and ensuring the reliability of the duct device. Can provide.
  • FIG. 1 is a longitudinal sectional view of the refrigerator according to Embodiment 1 of the present invention.
  • FIG. 2 is a front view of the main body according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic diagram of an air passage in the first embodiment of the present invention.
  • FIG. 4 is a first exploded view of the duct device according to Embodiment 1 of the present invention.
  • FIG. 5 is a second exploded view of the duct device according to Embodiment 1 of the present invention.
  • FIG. 6 is a perspective view of the duct device according to Embodiment 1 of the present invention.
  • FIG. 7 is a third exploded view of the duct device according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic view of the duct device according to Embodiment 1 of the present invention.
  • FIG. 9 is an essential part exploded view according to Embodiment 1 of the present invention.
  • FIG. 10 is a main part perspective view according to Embodiment 1 of the present invention.
  • FIG. 11 is a main part schematic diagram according to Embodiment 1 of the present invention.
  • FIG. 12 is a perspective view of the refrigerator compartment duct device according to Embodiment 1 of the present invention.
  • FIG. 13 is an exploded view of the refrigerator compartment duct device according to Embodiment 1 of the present invention.
  • FIG. 14 is a first perspective view of the refrigerating chamber according to Embodiment 1 of the present invention.
  • FIG. 15 is a cross-sectional view of the refrigerating room duct device attached in Embodiment 1 of the present invention.
  • FIG. 16 is a second perspective view in the refrigerator compartment according to the first embodiment of the present invention.
  • FIG. 17 is a schematic view of a partition seal connecting portion according to Embodiment 1 of the present invention.
  • FIG. 18 is a cross-sectional view of a conventional refrigerator.
  • the first invention is a refrigerator in the upper part, a freezer room in the lower part, a cooler that generates cold air behind the freezer room, and the generated cool air that is arranged in the upper part of the cooler is forcibly blown to each room
  • a cooling chamber having a cooling chamber, a duct having a cooling chamber air duct that blows cool air to the refrigerating chamber by the fan, and a refrigerating chamber return duct that returns the cool air discharged into the refrigerating chamber to the cooler
  • the duct portion constituted by the duct device, the duct device and the peripheral member, and the seal connecting portion between the duct device and the partition body are provided with a seal reinforcing structure, thereby providing the inside of the duct device.
  • the risk of cold air passing through the duct from the seal connection part of the formed duct can be reduced, and even when functional parts are embedded inside the duct device, the cold air from the seal connection part to the outside Le can be reduced, the reliability of the peripheral duct system improves, it is possible to secure a proper amount of air into the storage rooms.
  • the duct device vertical position stabilizing structure is provided on the back surface of the duct device, so that the vertical position when the duct device is installed and installed can be suppressed and stabilized. Therefore, the sealing performance of the seal joint portion is improved, and cold air leakage to the outside can be suppressed.
  • 3rd invention is the refrigerator of 1st invention.
  • WHEREIN Since the fitting part between the members of the seal
  • the seal portion structure that requires connection of the seal portions is different in that the two seal portions are wrapped in parallel to increase the creepage distance.
  • a step is provided in the seal connection portion of the inner box and emphasized from the peripheral portion.
  • FIG. 1 is a longitudinal sectional view of a refrigerator according to Embodiment 1 of the present invention
  • FIG. 2 is a front view of a main body according to Embodiment 1 of the present invention
  • FIG. 3 is an air path according to Embodiment 1 of the present invention.
  • 4 is a first exploded view of the duct device according to the first embodiment of the present invention
  • FIG. 5 is a second exploded view of the duct device according to the first embodiment of the present invention
  • FIG. 6 is an embodiment of the present invention.
  • FIG. 7 is a third exploded view of the duct device according to the first embodiment of the present invention
  • FIG. 8 is a schematic diagram of the duct device according to the first embodiment of the present invention
  • FIG. 10 is a main part perspective view of the first embodiment of the present invention
  • FIG. 11 is a main part schematic diagram of the first embodiment of the present invention
  • FIG. 12 is an embodiment of the present invention.
  • the perspective view of the refrigerator compartment duct apparatus in the form 1 FIG. 13 is embodiment of this invention
  • FIG. 14 is a first perspective view of the refrigerator compartment according to the first embodiment of the present invention
  • FIG. 15 is a cross-sectional view when the refrigerator compartment device is attached according to the first embodiment of the present invention
  • FIG. FIG. 17 is a second perspective view in the refrigerator compartment according to the first embodiment of the present invention
  • FIG. 17 is a schematic view of the partition seal connecting portion according to the first embodiment of the present invention.
  • a heat insulating box 31 of a refrigerator 30 includes an outer box 32 mainly using a steel plate and an inner box 33 formed of a resin such as ABS, and a foam insulating material such as hard foamed urethane is contained therein. 34 is filled.
  • the refrigerator 30 is insulated from the surroundings by the heat insulating box 31.
  • the heat insulating box 31 is divided into a plurality of storage rooms. Among the plurality of storage rooms, the one disposed at the uppermost part functions as the refrigeration room 35, and the storage room disposed at the lower part of the refrigeration room 35 functions as the switching room 36 and is disposed at the lowermost part. Functions as the freezer compartment 37.
  • the refrigerator compartment door 38 opens and closes the front opening of the refrigerating room 35
  • the switching room door 39 opens the front opening of the switching room 36
  • the freezing room door 40 opens and closes the front opening of the freezing room 37. It is freely pivoted.
  • the refrigerator compartment 35 is usually set to a temperature range of 1 ° C to 5 ° C with the lower limit of the temperature at which it does not freeze for refrigerated storage.
  • the switching chamber 36 can be switched from a freezing temperature zone to a refrigeration temperature zone, and can be set from ⁇ 18 to 4 ° C. at 1 ° C. intervals.
  • the freezer compartment 37 is set in a freezing temperature zone, and is usually set in a temperature range of ⁇ 22 ° C. to ⁇ 15 ° C. for frozen storage. In order to improve the frozen storage state, the temperature may be set to a low temperature range of, for example, ⁇ 30 ° C. or ⁇ 25 ° C.
  • the switching chamber 36 and the freezing chamber 37 are vertically partitioned by a first partition wall 41 that is a partition, and the refrigerator compartment 35 and the switching chamber 36 are vertically partitioned by a second partition wall 42 that is a partition. .
  • a cooling chamber 43 for generating cold air is provided on the back of the freezing chamber 37.
  • a cooler 44 is disposed inside the cooling chamber 43.
  • the cooling chamber 43 is insulated from the freezing chamber 37 by a cover 45.
  • a fan 46 that forcibly blows the cool air generated by the cooler 44 is disposed.
  • a defrost heater 47 that defrosts frost and ice adhering to the cooler 44 is provided.
  • the defrost heater 47 is specifically a glass tube heater or the like.
  • the refrigerant is a hydrocarbon-based refrigerant gas
  • a double glass tube heater in which glass tubes are formed in a double manner is employed as the defrost heater 47 for explosion prevention.
  • the cover 45 is formed of a resin decorative plate 45a and an inscover 45b in which a holding portion of the fan 46 and a cool air passage are formed by a heat insulating material such as a styrene material.
  • a refrigerating chamber 35 and a duct device 49 having a blower duct 48 for blowing cool air to the switching chamber 36 are provided on the back surface of the switching chamber 36.
  • the air duct 48 includes 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.
  • the refrigerating room air duct 48a and the switching room air duct 48b are respectively arranged in the duct device 49 so as to be arranged side by side in the left and right directions and vertically.
  • a damper device 50 is embedded in the duct device 49 to adjust the amount of cold air to the refrigerator compartment 35 and the switching chamber 36.
  • the damper device 50 is disposed in each of the refrigerating room air duct 48a and the switching room air duct 48b, and separately controls the amount of cold air passing through the refrigerating room air duct 48a and the switching room air duct 48b. Yes.
  • the cold air discharged from the discharge port 35a of the refrigerating chamber 35 through the refrigerating chamber air duct 48a returns to the cooler 44 through the refrigerating chamber return duct 51a from the return port 35b provided in the lower back surface of the refrigerating chamber 35.
  • the cold air discharged to the switching chamber 36 through the switching chamber air duct 48b returns to the cooler 44 from the switching chamber return port 36c provided in the lower part of the duct device through the switching chamber return duct 51b on the back surface of the switching chamber 36.
  • the refrigerator compartment return duct 51a is arranged side by side with the air duct 48.
  • the duct device 49 includes three ducts that extend in the vertical direction and are arranged side by side: a refrigerating room air duct 48a, a switching room air duct 48b, and a refrigerating room return duct 51a.
  • the switching chamber return duct 51b is arranged next to the refrigerator compartment return duct 51a in the front-rear positional relationship, and the switching chamber return duct 51b is arranged in front of the refrigerator compartment return duct 51a.
  • the duct device 49 is formed to have a large back surface height and left and right width dimensions.
  • the refrigerating room air duct 48 a and the switching room air duct 48 b are arranged side by side in the left-right direction in the left-right width direction of the switching room 36, that is, in the substantially central portion in the width direction of the duct device 49.
  • the refrigerating room return duct 51a and the switching room return duct 51b are collectively arranged on one side of a duct device 49 centering on the refrigerating room air duct 48a and the switching room air duct 48b.
  • the duct device 49 includes two parts, an upper duct member 49a formed of foamed polystyrene and a lower duct member 49b formed of foamed polystyrene, and is made of a resin that integrally covers the front surfaces of the upper duct member 49a and the lower duct member 49b.
  • a duct decorative plate 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 between the lower surface portion of the upper duct member 49a and the upper surface portion of the lower duct member 49b is sealed. The front surfaces of the connected upper duct member 49a and lower duct member 49b are entirely covered with a duct decorative plate 49c. Therefore, the refrigerating room air duct 48a and the switching room air duct 48b 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 embedded in the lower duct member 49b. Specifically, the damper device frame 50a of the damper device 50 is embedded so as to be positioned below the connection surface portion 49d of the lower duct member 49b that serves as a connection surface with the upper duct member 49a.
  • a wiring storage portion 52 and a recess 56 are provided on the other side of the refrigerating chamber return duct 51a and the switching chamber return duct 51b of the duct device 49 centering on the refrigerating chamber air duct 48a and the switching chamber air duct 48b.
  • the wiring storage part 52 is a part that stores wiring and connectors of the damper device 50.
  • the concave portion 56 is a portion in which a water supply pipe 55 that connects a water supply tank 53 of an automatic ice making device disposed in the refrigerator compartment 35 and an ice tray 54 disposed in the freezer compartment 37 is accommodated.
  • the wiring storage portion 52 is formed in 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 storage portion 52 is formed across the seal connection surface portion 49d between 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 the forward direction, leaving a recess 56 for storing the water supply pipe 55.
  • the outer peripheries of the upper duct member 49a and the lower duct member 49b are inclined so that the cross section of the connecting portion increases toward the seal connecting portion 49d.
  • the side surface portion of the upper duct member 49a is formed with a gradient shape (taper) in which the distance between the opposing surfaces from the upper surface portion toward the lower surface portion gradually increases.
  • the side surface portion of the lower duct member 49b is formed with a gradient shape (taper) in which the interval between the opposed surfaces from the lower surface portion toward the upper surface portion gradually increases.
  • a stepped portion 74 is easily secured between the seal connecting portion 49d and the duct decorative plate 49c, and a concave portion formed from the outside to the inside over the upper duct member 49a and the lower duct member 49b formed of styrene material.
  • the wiring storage portion 52 can be used. As a result, the invalid space of the duct device can be effectively used as the wiring storage portion 52, water intrusion of the electrical wiring can be prevented, and the effective internal volume of the switching chamber 36 can be improved.
  • the switching chamber 36 is provided with an upper drawer case 69 whose upper surface is open and a lower drawer case 70 whose upper surface is open so as to be movable in the front-rear direction.
  • the upper discharge port 36 a that discharges cold air to the switching chamber 36 is disposed above the upper surface opening 69 a of the upper drawer case 69.
  • the lower discharge port 36 b that opens to the duct device 49 and discharges cool air to the switching chamber 36 is disposed above the upper surface opening 70 a of the lower drawer case 70 and between the bottom surface 69 b of the upper drawer case 69. .
  • the upper drawer case 69 may be configured such that the back wall 69c is inclined in the forward direction of the lower drawer case 70, and the lower discharge port 36b is disposed at a position facing the back wall 69c.
  • the back wall 69c serves as a guide plate for cool air discharged from the lower discharge port 36b, and the cool air can be guided into the lower drawer case 70.
  • connection surface portion 49d of the lower duct member 49b which is the connection surface with the upper duct member 49a, is disposed below the upper surface opening 70a of the lower drawer case 70 and above the bottom surface portion 70b.
  • the duct device 49 is configured, and the connection surface portion 49 d is disposed at a position corresponding to the back wall 70 c of the lower drawer case 70.
  • an aluminum foil heater 57 is attached to the duct surface in the refrigerating room return duct 51a adjacent to the switching room return duct 51b of the duct device 49.
  • the switching chamber 36 is set to a refrigeration temperature zone where the temperature is lower than the refrigeration temperature zone, or when the switching chamber 36 is at a low outside air temperature, the energization of the aluminum foil heater 57 is controlled. This is because the cold air passing through the refrigerating chamber return duct 51a is moisture after circulating through the refrigerating chamber 35, and thus contains moisture. The cold air passing through the refrigerator compartment return duct 51a has a higher temperature than the cold air led to the switching chamber return duct 51b. For this reason, there exists a possibility that the inner surface of the refrigerator compartment return duct 51a may condense or freeze. As described above, the aluminum foil heater 57 can be energized to prevent freezing.
  • the first partition wall 41 connected to the lower surface portion of the duct device 49 is provided with a refrigeration chamber return communication port 58 that communicates with the refrigeration chamber return duct 51a, and a switching chamber return communication port 59 that communicates with the switching chamber return duct 51b. Is provided.
  • the refrigerating room return communication port 58 and the switching room return communication port 59 are opened in a front-rear state, the switching room return communication port 59 is disposed on the front side, and the refrigerating room return communication port 58 is provided on the rear side. Has been placed.
  • the refrigerator compartment return communication port 58 and the switching chamber return communication port 59 communicate with the cooling chamber 43.
  • the first partition wall 41 is assembled at a predetermined position before foaming of the heat insulating box 31, and the urethane filled in the heat insulating box 31 is also used for fixing the first partition wall 41 to enhance the heat insulating performance of the refrigerator. Yes.
  • the first partition wall 41 covers a first partition wall 41a formed of foamed polystyrene, a first upper surface partition cover 41b that covers the upper surface of the first partition wall 41a, and a lower surface of the first partition wall 41a. It is comprised with the 1st lower surface division cover 41c.
  • the first partition wall 41 is fixed to the heat insulating box 31 by filling urethane between the first upper surface partition cover 41b and the first lower surface partition cover 41c.
  • an aluminum foil heater 41d is affixed to the upper surface of the first partition wall 41. When the switching chamber 36 is set to a refrigeration temperature zone, the aluminum foil heater 41d is energized to achieve an appropriate temperature.
  • the cover 45 is provided side by side with the cooler 44, and a cool air return passage 71 partitioned by the cooler 44, the partition member 75, and the back wall of the cooling chamber 43 is formed. Cold air that has passed through the refrigerator compartment return communication port 58 and the switching chamber return communication port 59 of the first partition wall 41 is introduced into the cold air return passage 71.
  • the cold air return passage 71 is formed on the side of the cooler 44 by a partition member 75.
  • a branch duct 76 is arranged that 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.
  • the shunt duct 76 is formed only on the upstream side, and the cold room return cold air and the switching room return cold air are merged from the middle.
  • cold air is divided into the upstream portion of the cold air return passage 71 so as not to be mixed. Therefore, in the shunt duct 76, the cold air that has passed through the refrigerating room return duct 51a does not flow downward, flows back to the switching chamber return communication port 59, and flows back into the switching chamber 36 from the switching chamber return port 36c of the duct device 49. It functions as a trap that prevents air flow and acts as a backflow prevention duct.
  • the shunt duct 76 is formed only in the upstream portion in order to secure the opening area of the return passage 71. However, if the opening area on the downstream side of the return passage 71 can be secured, it may be formed to extend to the downstream portion. .
  • a cold air return port 77 through which the cold air passing through the cold air return passage 71 returns to the lower part of the cooler 44 is provided. That is, the cold air return port 77 is configured to open to the lower end portion 75 a of the partition member 75.
  • the defrosting heater 47 disposed substantially horizontally below the cooler 44 has a projection surface at the end thereof, protrudes from one end of the cooler 44, passes through the cool air return port 77, and enters the cool air return passage 71. It is arranged to extend.
  • the cover 45 is provided with a fan 46 and a cold air discharge port 72 for sending cold air to the refrigerator compartment 35 and the switching chamber 36.
  • a cold air discharge port 72 is formed between the fan 46 and the cold air return passage 71.
  • a partition member 75 is formed between the cold air discharge port 72 and the cold air return passage 71.
  • the refrigerator compartment 35 is divided into a plurality of compartments by a plurality of shelves 61 up and down.
  • the refrigerating room air duct 48 a configured on the back surface of the refrigerating room 35 is formed in the vertical direction behind the plurality of shelves 61.
  • On the back surface of the refrigerator compartment 35 a refrigerator compartment outlet 62 that opens corresponding to each shelf 61 is formed.
  • the refrigerating room air duct 48a may include a branch path 63 that branches left and right in the space of the refrigerating room 35. By providing the branch path 63, the temperature distribution in the width direction of the space of the refrigerator compartment 35 can be made uniform.
  • the refrigerator compartment duct device 80 is disposed on the back surface of the refrigerator compartment 35, and the refrigerator compartment duct device 80 and the inner box 2 form an air path for the refrigerator compartment.
  • the refrigerator compartment duct device 80 is coupled to a second partition wall 42 that divides the refrigerator compartment 35 and the switching chamber 36 in the vertical direction, and discharges cold air from the refrigerator compartment 43 through the duct device 49 of the switching chamber 36. The return cold air is circulated to the temperature zone of the refrigerator compartment 35.
  • the refrigerator compartment duct device 80 is formed of a refrigerator compartment duct member 81 made of foamed polystyrene and a resin refrigerator compartment duct decorative plate 86 that covers the front surface of the refrigerator compartment duct member 81, and a seal portion of the refrigerator compartment duct device 80.
  • a seal foam member 82 is attached.
  • the lower surface portion and the rear surface portion of the refrigerator compartment duct member 81 are sealed to the partition wall duct member 87, the partition wall plate member 88, and the foam member seal surface 84 of the inner box 2, which are the upper surface portions of the second partition wall 42.
  • a seal reinforcing structure is formed at the seal connecting portion of the refrigerator compartment duct device 80.
  • refrigerator compartment pressure welding seal portion 83 a on the back surface of the refrigerator compartment duct member 81 is sealed and connected to the inner case pressure welding seal portion 83 b of the inner box 2.
  • the front surface of the refrigerator compartment duct member 81 is covered with a refrigerator compartment duct decorative plate 86.
  • the lower surface portion of the refrigerator compartment duct device 80 is fixed to a duct device fixing portion 89 by a hook-shaped hook fixing provided at the front. Thereby, the adhesiveness of the refrigerator compartment duct apparatus 80 and the 2nd division wall 42 is ensured. Moreover, the position of the back side of the lower surface part of the refrigerator compartment duct apparatus 80 may not be stabilized only by fixing the duct apparatus fixing part 89. Thereby, the sealing property of the junction part of the lower surface part back side of the refrigerator compartment duct apparatus 80 and the partition wall board member 88 may become unstable.
  • a floating prevention portion 85 that is formed integrally with the inner box 2 and stabilizes the vertical position of the refrigerator compartment duct device 80 is provided.
  • the floating prevention portion 85 By joining the floating prevention portion 85 and the refrigerator compartment duct member 81, the lower surface portion of the refrigerator compartment duct device 80 does not rise and the position of the joint portion is stabilized. Therefore, the sealing performance between the refrigerator compartment duct device 80 and the box 2 can be improved, and the leakage of cold air to the outside can be reliably prevented.
  • the floating prevention portion 85 is disposed in the vicinity of the seal portion.
  • the connecting portion of the partition wall duct member 87 and the partition wall plate member 88 forming the refrigerating chamber air duct 48a of the second partition wall 42 is not brought into contact with a straight surface, but as shown in FIG.
  • By causing the fitting portion between the members to contact with each other on the surface of the stepped portion shape it is possible to suppress a gap generated due to component variation between the contact surfaces of the partition wall duct member 87 and the partition wall plate member 88. Further, by increasing the contact area between the components, the cold air leaking out of the duct can be more reliably blocked, and the sealing performance can be ensured.
  • the shape of the refrigerating chamber duct pressure seal portion 83a of the refrigerating chamber duct member 81 is uneven. Cold air is discharged so as to wrap up the entire refrigerator compartment due to the uneven shape of the pressure-contact seal portion 83a.
  • Refrigeration chamber duct pressure contact seal portion 83a and seal foam member 82 for sealing structure foam member seal portion 84 switching is not connected on the same line, but each seal portion is arranged in parallel and then switched by wrapping in parallel. A sufficient contact distance can be ensured between parts, and variations in parts and assembly can be absorbed, so that the sealing performance can be improved.
  • each of the various structures described above is a seal reinforcement structure.
  • the seal reinforcing structure has been described by the form of the cold room duct device 80 disposed in the back of the cold room and the portion of the inner box 2 corresponding to the cold room duct device 80, but the structure is not limited to this. Absent. You may use the said seal reinforcement structure in the back part of a switching chamber.
  • a vegetable room 64 is formed in the lower part of the refrigerator room 35.
  • the vegetable compartment 64 has an open / close lid 64a on the front surface and a vegetable case 64b that can be pulled out in the front-rear direction.
  • the vegetable compartment 64 may include a box case 65 having an opening on the upper surface and sealed with an upper surface lid.
  • the vegetable compartment 64 may be formed according to the full width dimension of the refrigerator compartment 35, in the case of a present Example, the vegetable compartment 64 is formed in the dimension smaller than the full width dimension of the refrigerator compartment 35.
  • FIG. A water supply tank 53 for storing water for automatic ice making is detachably stored next to the vegetable compartment 64.
  • 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. The water in the water supply tank 53 is sucked up by a motor (not shown) and guided into the water supply pipe 55.
  • the switching chamber 36 can be set in a freezing temperature zone, and there is a possibility that water in the water supply pipe 55 arranged in the vicinity will freeze. For this reason, a freezing prevention heater (not shown) is wound around the outer periphery of the water supply pipe 55. Further, since the water supply pipe 55 is disposed between the inner box 33 and the duct device 49, the water supply pipe 55 is embedded in a concave portion 56 formed on the back surface of the duct device 49 so as to insulate the switching chamber 36. Yes. Further, the wiring storage portion 52 that stores the wiring and connectors of the damper device 50 may be stored by providing the storage portion 52 on the back surface of the duct device 49.
  • the concave portion 56 and the wiring storage portion 52 By forming the concave portion 56 and the wiring storage portion 52, the storage space in the front-rear direction necessary for the water supply pipe 55 and wiring can be reduced, and the internal volume of the switching chamber 36 can be secured. Moreover, the recessed part 56 and the wiring accommodating part 52 are comprised by the other side so that it may not wrap to the part in which the refrigerator compartment ventilation duct 48a of the duct apparatus 49, the switching chamber ventilation duct 48b, and the refrigerator compartment return duct 51a are formed. Therefore, it prevents the heat insulation from being impaired.
  • a control board 66 for controlling the entire refrigerator 30 is disposed at a position corresponding to the back surface of the switching chamber 36.
  • a refrigerator temperature sensor 67 for detecting the temperature of the refrigerator compartment 35 is installed in the refrigerator compartment return port 35b, and a switching chamber temperature sensor 68 for detecting the temperature of the switching chamber 36 is installed in the switching chamber return port 36c. .
  • a part of the cold air generated by the cooler 44 in the cooling chamber 43 is forcibly blown forward by the fan 46.
  • the freezer compartment 37 is cooled by the cold air discharged from the discharge port of the 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 cover 45, heat exchange is performed by the cooler 44, and fresh cold air is again circulated by the fan 46.
  • the freezer compartment 37 is cooled to an appropriate temperature under the control of a freezer sensor (not shown).
  • the cold air discharged above the fan 46 is guided to the duct device 49 from the cold air discharge port 72 of the cover 45 through the communication hole of the first partition wall 41.
  • the refrigerating room damper 50a of the damper device 50 is opened so that the cold air discharged to the refrigerating room 35 passes through the refrigerating room air duct 48a. Is discharged from the discharge port 35a to cool the room.
  • the circulated cold air is converted into air in the refrigerator compartment 35 or humid air contained in the stored product, and is led to the return port 35b.
  • the cold air passes through the cold air return passage 71 constituted by the cover 45 and the back wall of the cooling chamber 43 through the cold room return duct 51 a of the duct device 49.
  • the cool air is led from the cool air return port 77 to the lower part of the cooler 44 and exchanges heat with the cooler 44, and fresh cool air is forcibly blown by the fan again.
  • the fan 46 forcibly blows cold air to the refrigerating room air duct 48 a communicating with the cooler 44, discharges the cold air to the refrigerating room 35 through the refrigerating room air duct 48 a in the duct device 49, and the refrigerating room temperature sensor 67 Since the opening and closing of the refrigerator compartment damper 50a is controlled, the interior of the refrigerator compartment 35 can be controlled to the set temperature even at a position away from the cooler 44.
  • the switching room damper 50b of the damper device 50 is opened and provided at a position higher than the upper surface opening of the upper drawer case 69 through the switching room air duct 48b.
  • Cold air is discharged from the discharge port 36 a of the switching chamber into the switching chamber 36, and the cold air is guided into the upper drawer case 69.
  • Cold air is also discharged from the discharge port 36b provided at a position higher than the upper surface opening of the lower drawer case 70, and the back wall of the upper drawer case 69 acts as a guide for regulating the flow of cold air, thereby lowering the inside of the lower drawer case 70. Introduce cold air.
  • the cold air circulated in the switching chamber 36 is guided to the return port 36 c, passes through the switching chamber return duct 51 b, passes through the switching chamber return communication port 59, passes through the shunt duct 76 formed in the cover 45, and returns to the cold air return port 77.
  • the fan 46 forcibly blows cool air to the switching chamber air duct 48 b communicating with the cooler 44 to discharge the cool air to the switching chamber 36 through the duct device 49, and the switching chamber temperature sensor 68 opens and closes the switching chamber damper 50 b. Therefore, even in the position away from the cooler 44, the interior of the switching chamber 36 can be controlled to the set temperature.
  • a refrigerating room air duct 48a, a switching room air duct 48b, and a refrigerating room return duct 51a extend in the vertical direction and are arranged side by side.
  • the switching room return duct 51b is disposed in front of the refrigerating room return duct 51a. Is formed.
  • the refrigerating room air duct 48a and the switching room air duct 48b are arranged at substantially the center position in the width direction of the duct device 49, and the refrigerating room return duct 51a and the switching room return duct 51b are disposed on one side with respect to the heat insulating box 31. Since it is arranged in the front-rear direction, the water supply pipe 55 connected to the water supply tank 53 and the wiring storage part 52 are arranged on the other side, so the distance between the duct device 49 that becomes an invalid space behind the switching chamber 36 and the inner box 33 is set. The depth of the switching chamber 36 can be secured large.
  • the refrigeration chamber air duct 48a is formed in a substantially vertical direction from the inside of the duct device 49 of the switching chamber 36 to the branch path 63 in the refrigeration chamber 35, the air path resistance in the duct is reduced and the refrigeration is performed.
  • the air volume to the chamber 35 can be secured.
  • the foam insulating material 34 is filled so that the first partition wall 41 and the second partition wall 42 are formed in the heat insulating box 31, and then the switching chamber between the first partition wall 41 and the second partition wall 42.
  • the duct device 49 By arranging the duct device 49 on the back surface of 36, the duct configuration of the switching chamber 36 can be easily formed.
  • the switching chamber 36 can switch the set temperature from a freezing temperature zone of ⁇ 18 ° C. to a refrigeration temperature zone of 4 ° C. This can be realized by controlling the opening rate of the switching chamber damper 50b according to the set temperature.
  • the cool air discharged from the discharge ports 36a and 36b of the switching chamber is guided into the switching chamber return duct 51b through the return port 36c. It is burned. Since 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. May freeze. Further, there is a possibility that the condensed water flows in the refrigerating room return duct 51 a and freezes in the return passage 71. For this reason, the dew condensation water generated by heating with the aluminum foil heater 57 attached to the refrigerating room return duct 51a can be evaporated and freezing in the duct can be prevented.
  • the cold air that has passed through the refrigerating room return duct 51a does not flow downward but flows back to the switching room return communication port 59.
  • the trap function for preventing the reverse flow from the switching chamber return port 36c of the duct device 49 into the switching chamber 36 can be exhibited, acting as a backflow prevention duct, and the cold room return cold air is switched through the switching chamber return communication port 59. Backflow from the chamber return port 36c to the switching chamber 36 can be prevented, the switching chamber 36 can be efficiently cooled to an appropriate temperature, and condensation can be prevented.
  • the edge part of the defrost heater 47 is a projection surface, it protrudes from the one end part of the cooler 44, passes through the inside of the cold air return port 77 and extends into the cold air return passage 71, and therefore, at the time of defrosting. Since the inside of the return passage 71 can be heated by heater heat, condensation and freezing can be improved and prevented, and reliability can be enhanced.
  • the refrigerating room return duct 51a and the switching room return duct 51b communicate with the lower part of the cooler 44 through the freezing room 37 region having a temperature range lower than that of the switching room 36 and the refrigerating room 35. If the refrigerator compartment return duct 51a having the highest return cold air temperature is arranged at a position away from the freezer compartment 37, the inside of the refrigerator compartment return duct 51a is cooled to cause dew condensation, and further, the refrigerator compartment return duct 51a may be frozen. Can be reduced.
  • 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 compartment temperature is disposed in front of the refrigerator compartment return duct 51a, so that the inside of the refrigerator compartment feedback duct 51a is arranged. Condensation and freezing can be reduced.
  • the refrigerator according to the present invention can also be applied to household or commercial refrigerators.
  • Refrigerator 35 Refrigeration room 36 Switching room 37 Freezing room 41 First partition wall 44 Cooler 45 Cover 46 Fan 47 Defrosting heater 48 Air duct 48a Refrigeration room air duct 48b Switching room air duct 49 Duct device 50 Damper device 51a Return to refrigeration room Duct 51b Switching chamber return duct 58 Refrigeration chamber return communication port 59 Switching chamber return communication port 71 Return passage 76 Dividing duct 80 Refrigeration chamber duct device 81 Refrigeration chamber duct member 82 Seal foam member 83a Refrigeration chamber duct pressure seal part 83b Inner box pressure seal Part 84 foam member seal part 85 floating prevention part 86 refrigerator compartment duct decorative plate 87 partition wall duct member 88 partition wall plate member 89 duct device fixing part

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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

La présente invention concerne un réfrigérateur comprenant un compartiment de refroidissement (35) sans une section supérieure, un compartiment de congélation (37) dans une section inférieure et un ventilateur (46) qui est disposé dans une section supérieure d'un refroidisseur (44) et souffle de force l'air froid généré dans chaque compartiment. Le réfrigérateur est pourvu d'un appareil à conduit de compartiment de refroidissement (80) comprenant un conduit de ventilation de compartiment de refroidissement (48a) pour souffler l'air froid dans le compartiment de refroidissement (35) et un conduit de retour du compartiment de refroidissement (51a) pour ramener l'air froid vers le refroidisseur. Un élément de conduit de compartiment de refroidissement (81) dans l'appareil à conduit de compartiment de refroidissement (80) est fermé de manière étanche vers le bas et vers le haut au moyen d'une structure de renforcement de joint d'étanchéité.
PCT/JP2011/002019 2010-07-02 2011-04-05 Réfrigérateur Ceased WO2012001849A1 (fr)

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JP6230235B2 (ja) * 2013-01-15 2017-11-15 東芝ライフスタイル株式会社 冷蔵庫
CN104482700A (zh) * 2014-12-29 2015-04-01 合肥美的电冰箱有限公司 风冷冰箱
CN104864662B (zh) * 2015-06-08 2017-10-27 合肥美的电冰箱有限公司 风道组件和制冷设备
CN106839610B (zh) * 2016-12-30 2019-09-10 安徽康佳同创电器有限公司 一种应用于制冷设备的风道密封装置及密封方法
WO2020144739A1 (fr) * 2019-01-08 2020-07-16 三菱電機株式会社 Conduit et réfrigérateur

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JPH10185402A (ja) * 1996-12-20 1998-07-14 Fujitsu General Ltd 電気冷蔵庫
JP2007071483A (ja) * 2005-09-09 2007-03-22 Hitachi Appliances Inc 冷蔵庫
JP2008069997A (ja) * 2006-09-12 2008-03-27 Matsushita Electric Ind Co Ltd 冷蔵庫
WO2009048023A1 (fr) * 2007-10-11 2009-04-16 Sharp Kabushiki Kaisha Réfrigérateur
JP2009162470A (ja) * 2007-09-03 2009-07-23 Panasonic Corp 冷蔵庫
WO2010029728A1 (fr) * 2008-09-12 2010-03-18 パナソニック株式会社 Réfrigérateur

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JPH10170136A (ja) * 1996-12-12 1998-06-26 Toshiba Corp 冷蔵庫のダクト接続構造
JP2007187362A (ja) * 2006-01-12 2007-07-26 Matsushita Electric Ind Co Ltd 冷蔵庫
JP5298660B2 (ja) * 2008-06-24 2013-09-25 パナソニック株式会社 冷蔵庫

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Publication number Priority date Publication date Assignee Title
JPH10185402A (ja) * 1996-12-20 1998-07-14 Fujitsu General Ltd 電気冷蔵庫
JP2007071483A (ja) * 2005-09-09 2007-03-22 Hitachi Appliances Inc 冷蔵庫
JP2008069997A (ja) * 2006-09-12 2008-03-27 Matsushita Electric Ind Co Ltd 冷蔵庫
JP2009162470A (ja) * 2007-09-03 2009-07-23 Panasonic Corp 冷蔵庫
WO2009048023A1 (fr) * 2007-10-11 2009-04-16 Sharp Kabushiki Kaisha Réfrigérateur
WO2010029728A1 (fr) * 2008-09-12 2010-03-18 パナソニック株式会社 Réfrigérateur

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