WO2019208457A1 - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
WO2019208457A1
WO2019208457A1 PCT/JP2019/016913 JP2019016913W WO2019208457A1 WO 2019208457 A1 WO2019208457 A1 WO 2019208457A1 JP 2019016913 W JP2019016913 W JP 2019016913W WO 2019208457 A1 WO2019208457 A1 WO 2019208457A1
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WO
WIPO (PCT)
Prior art keywords
door
gasket
inner plate
refrigerator
plate
Prior art date
Application number
PCT/JP2019/016913
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French (fr)
Japanese (ja)
Inventor
克彦 西澤
美桃子 井下
愼一 堀井
Original Assignee
パナソニックIpマネジメント株式会社
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Application filed by パナソニックIpマネジメント株式会社 filed Critical パナソニックIpマネジメント株式会社
Publication of WO2019208457A1 publication Critical patent/WO2019208457A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/02Doors; Covers

Definitions

  • This disclosure relates to refrigerators, and particularly to the refrigerator compartment door.
  • the refrigerator in order to save energy by improving heat insulation performance, has a box body serving as a refrigerator main body and a heat insulating door that closes the front opening, and a vacuum heat insulating material between the refrigerator main body and the heat insulating door.
  • the heat insulation performance in the vicinity of is improved.
  • the conventional refrigerator has a refrigerator door composed of an inner plate, an outer plate, a heat insulating material accommodated between the inner plate and the outer plate, and a gasket.
  • the gasket has a shape to be inserted into a gasket mounting portion having an insertion receiving shape provided on the inner plate. And a gasket is inserted and fixed to a gasket attachment part (for example, refer to patent documents 1).
  • the gasket mounting portion is cooled by heat conduction when the inner plate is cooled by the cool air in the cabinet. For this reason, when the surface temperature of the gasket is lowered, the gasket is condensed. In addition, the energy saving performance deteriorates due to heat exchange between the gasket and the outside of the cabinet.
  • JP 2017-62110 A Japanese Patent No. 5310928
  • This disclosure provides a refrigerator that improves the quality by preventing the door from condensing and improving the energy saving performance by suppressing heat exchange between the gasket and the outside of the cabinet.
  • a refrigerator includes a refrigerator body and a door that opens and closes a front opening of the refrigerator body, and the door is an insulating plate disposed between an inner plate, an outer plate, and the inner plate and the outer plate. And a gasket that is attached to the inner plate and seals the front opening by contacting the peripheral edge of the front opening, and the inner plate faces the front opening and protrudes toward the inner side
  • a bank portion is provided, and at least one of the first recessed portion and the through hole portion is disposed on the bank portion of the inner plate.
  • FIG. 1 is a front view of the refrigerator according to the first embodiment of the present disclosure.
  • FIG. 2 is a perspective view of the refrigerator door in the first embodiment.
  • FIG. 3 is a cross-sectional view of the refrigerator door in the first embodiment when viewed from the right side. 4 is an enlarged view of a main part of the sectional view of the door of the refrigerator shown in FIG.
  • FIG. 5 is a cross-sectional view of the refrigerator door according to the second embodiment of the present disclosure as viewed from the right side.
  • FIG. 6 is an enlarged view of a main part of the cross-sectional view of the refrigerator door shown in FIG. 5.
  • a refrigerator includes a refrigerator body and a door that opens and closes a front opening of the refrigerator body, and the door is disposed between an inner plate, an outer plate, and the inner plate and the outer plate. And a gasket that is attached to the inner plate and seals the front opening by contacting the peripheral edge of the front opening, and the inner plate faces the front opening, A bank portion projecting toward the wall, and at least one of the first dent portion and the through hole portion is disposed on the bank portion of the inner plate.
  • Such a configuration can prevent the cool air in the storage chamber from conducting heat to the gasket through the inner plate and prevent condensation due to a decrease in the surface temperature of the gasket.
  • the inner plate has a gasket mounting portion to which a gasket is attached, and the second dent portion may be disposed in a portion located on the outer side of the gasket mounting portion.
  • Such a configuration can further suppress heat conduction in the inner plate.
  • the refrigerator according to yet another aspect of the present disclosure may be configured such that the thickness of the inner plate in the second recess is smaller than the thickness of the inner portion of the gasket mounting portion.
  • Such a configuration can improve the reliability against condensation and further improve the energy saving performance.
  • the heat insulating material may be a vacuum heat insulating material.
  • chamber interior of a gasket attachment part and a vacuum heat insulating body may adhere
  • the door may have a door cap on a side surface parallel to the thickness direction of the door, and the door cap and the vacuum heat insulating body may be bonded.
  • Such a configuration improves the strength of the entire door and ensures the durability of the door.
  • the vacuum heat insulator includes a core material, a storage unit that stores the core material, and a sealing member that seals an opening of the storage unit.
  • the portion may face the inner plate, and the sealing member may face the outer plate and be covered with the outer plate.
  • the entire interior of the door can be configured with a vacuum insulator, and the energy saving performance of the refrigerator is improved.
  • FIG. 1 is a diagram illustrating the entire refrigerator and the components.
  • the refrigerator 100 includes a refrigerator main body 11 formed of a box body having heat insulation properties.
  • the refrigerator main body 11 is mainly composed of an outer box made of a steel plate, an inner box formed of a resin such as ABS resin, and a heat insulating material injected between the outer box and the inner box.
  • the refrigerator main body 11 has a plurality of storage rooms insulated by partition plates.
  • a refrigerator compartment 12 is disposed at the top of the refrigerator 100.
  • an ice making room 13 and a switching room 14 are arranged side by side in the lower part of the refrigerator compartment 12, and a freezing room 15 is arranged in the lower part of the ice making room 13 and the switching room 14.
  • a vegetable room 16 is disposed at the bottom of the refrigerator 100.
  • doors 12a, 13a, 14a, 15a, and 16a having heat insulation properties are provided for partitioning the interior from the outside air. These doors are arranged in front of the front opening of the refrigerator main body 11.
  • a machine room is arranged in the rear area at the top of the refrigerator compartment 12.
  • components constituting the refrigeration cycle such as a compressor and a dryer for removing moisture are housed.
  • a cooling chamber that generates cold air is disposed behind the freezing chamber 15.
  • a cooler and a cooling fan are arranged in the cooling chamber.
  • the cooling fan blows cold air generated by being cooled by the cooler to the refrigerator compartment 12, the ice making chamber 13, the switching chamber 14, the vegetable compartment 16, and the freezer compartment 15.
  • an air volume adjustment damper for adjusting the air volume of the cool air from the cooling fan is disposed in the cooling air passage.
  • a radiant heater, a drain pan, a drain tube evaporating dish, and the like are provided in order to defrost frost and ice adhering to the cooler and the periphery of the cooler.
  • the temperature of the refrigerator compartment 12 is set as a lower limit of the temperature at which the stored product is not frozen in order to store the stored product in a refrigerator, and is usually 1 ° C. to 5 ° C. Further, the temperature of the lowermost vegetable room 16 is set to a temperature equal to or slightly higher than the temperature of the refrigerated room 12, and is usually 2 ° C to 7 ° C. Furthermore, the temperature of the freezer compartment 15 is set to a freezing temperature zone, and is usually ⁇ 22 ° C. to ⁇ 15 ° C. in order to store the stored product in a frozen state. However, the temperature of the freezer compartment 15 may be set to a low temperature such as minus 30 ° C. or minus 25 ° C., for example, in order to improve the frozen preservation state of the stored product.
  • an automatic ice making machine In the upper part of the ice making chamber 13, an automatic ice making machine is arranged.
  • the automatic ice making machine generates ice with water sent from a water storage tank in the refrigerator compartment 12.
  • the generated ice is stored in an ice storage container disposed in the lower part of the ice making chamber 13.
  • the switching chamber 14 is configured so that the temperature in the switching chamber 14 can be switched between a plurality of temperature zones.
  • the multiple temperature zones include, for example, a refrigeration temperature zone set at 1 ° C. to 5 ° C., a vegetable temperature zone set at 2 ° C. to 7 ° C., and a freezing temperature usually set at ⁇ 22 ° C. to ⁇ 15 ° C.
  • a temperature zone preset by a temperature between the refrigeration temperature zone and the freezing temperature zone is included.
  • the switching room 14 is arranged in parallel with the ice making room 13.
  • the switching chamber 14 is a storage chamber provided with a door independently.
  • the door 14a of the switching chamber 14 is often configured as a pull-out door.
  • the switching chamber 14 is a storage chamber that can be switched between a plurality of temperature zones including a refrigeration temperature zone and a refrigeration temperature zone, but the switchable temperature zone is limited to the combination described above. I can't.
  • the storage function in the refrigeration temperature zone may be left to the refrigeration room 12 and the vegetable room 16, and the storage function may be left to the freezer room 15 in the freezing temperature zone.
  • the switching chamber 14 may be configured as a storage chamber specialized for switching only in an intermediate temperature zone between the refrigeration temperature zone and the freezing temperature zone.
  • the switching chamber 14 may be a storage chamber whose temperature is fixed in a specific temperature range. For example, with the recent increase in demand for frozen food, the switching chamber 14 may be configured as a storage chamber fixed for freezing.
  • FIG. 2 is a perspective view of the refrigerator door in the present embodiment.
  • FIG. 3 is a sectional view of the refrigerator door in the present embodiment as viewed from the right side.
  • the door (freezer compartment door) 15 a of the freezer compartment 15 slides between the heat insulating door casing 21, the gasket 22, and the rails arranged on the side walls of the freezer compartment 15.
  • the door 15a is arrange
  • the heat insulating door casing 21 has an inner plate 31 and an outer plate 32.
  • the outer surface of the outer plate 32 constitutes the outer surface of the heat insulating door casing 21.
  • the outer surface of the heat insulating door casing 21 is a portion that is always exposed to the outside of the refrigerator body 11.
  • the inner plate 31 includes a substantially flat portion 31a that is a portion facing the front opening of the freezer compartment 15 (see FIG. 1), a bank portion 31b disposed on the outer periphery of the substantially flat portion 31a, and A gasket mounting portion 31c into which the gasket 22 is press-fitted is integrally formed.
  • the inner plate 31 is made of resin.
  • the bank portion 31b of the inner plate 31 is opposed to the front opening and protrudes toward the inside of the freezer compartment 15 (inner side).
  • the bank portion 31b enters the freezer compartment 15 when the door 15a is closed, so that the throat portion that is a gap between the bank portion 31b and the partition wall 33 (see FIG. 4 described later) that partitions the freezer compartment 15 is provided. 55 (see FIG. 4 described later).
  • the bank portion 31b is arranged so that the width of the throat portion 55 is narrowed.
  • the inner plate 31 is made of resin as described above, and is formed by injection molding. Inside the inner plate 31, a vacuum heat insulating member 36 to be described later, which is molded corresponding to the inner surface shape of the inner plate 31, that is, the uneven shape of the substantially flat surface portion 31 a and the bank portion 31 b is accommodated.
  • the vacuum heat insulator 36 includes a core material 36a, a storage case 36b that stores the core material 36a, and a sealing member 36c that seals an opening of the storage case 36b.
  • the storage case 36b is formed of a multilayer soft material. Further, the storage case 36b sealed by the sealing member 36c is sealed in a state where the inside is decompressed.
  • the sealing member 36c is a rectangular film and is configured to seal the opening of the storage case 36b.
  • a laminate film such as a thermoplastic resin may be used.
  • the laminate film may have a metal layer such as aluminum or stainless steel.
  • the storage case 36b is formed in accordance with the inner surface shape of the inner plate 31, that is, the uneven shape such as the substantially flat surface portion 31a, the bank portion 31b, and the gasket mounting portion 31c.
  • the storage case 36b is a molded product produced by a technique such as vacuum molding, injection molding, pressure molding, or press molding.
  • the storage case 36b is formed of a multilayer sheet in which a plurality of layers of a material softer than the ABS resin that is the material of the inner plate 31 (for example, a soft material such as ethylene-vinyl alcohol copolymer resin) is stacked. Thereby, the storage case 36 b can be matched with the inner surface of the inner plate 31 when stored in the inner plate 31.
  • the storage case 36b is configured in a concave shape having an opening, and stores the core material 36a in the internal space.
  • the storage case 36b opens toward the front side shown in FIG. 3, and is recessed toward the rear side.
  • the core material 36a is made of open-cell urethane foam, glass fiber, rock wool, alumina fiber, polyethylene terephthalate fiber, or the like.
  • the open cell urethane foam may have, for example, the characteristics disclosed in Patent Document 2.
  • the core material 36a has an adsorbent (not shown) inside. Examples of the adsorbent include a moisture adsorbent that adsorbs and removes moisture, and a gas adsorbent that adsorbs a gas such as atmospheric gas.
  • the adsorbent is fitted inside the core member 36a. In a state where the adsorbent is fitted to the core material 36a, the core material 36a and the adsorbent are formed in substantially the same shape as the shape of the inner surface (internal space) of the storage case 36b.
  • the storage case 36 b of the vacuum heat insulator 36 is disposed so as to be attached to the inner surface of the inner plate 31.
  • the door 15a has a door cap 34 on a side surface parallel to the thickness direction of the door 15a (front-rear direction in FIG. 3), and the door cap 34 constitutes the outer periphery of the door 15a. And the door cap 34 is arrange
  • the outer plate 32 of the heat insulating door casing 21 has a rectangular flat plate shape and is made of a glass plate or the like.
  • the outer plate 32, the sealing member 36c of the vacuum heat insulator 36, and the door cap 34 are bonded with an adhesive or a double-sided tape. Thereby, the outer plate 32 is fixed.
  • FIG. 4 is an enlarged view of a main part of the sectional view of the refrigerator door shown in FIG.
  • a throat portion 55 (gap) is formed between the bank portion 31 b of the inner plate 31 and the partition wall 33. Thereby, it is avoided that the cool air which goes to the door 15a from the inside of the freezer compartment 15 hits the gasket attachment part 31c directly. That is, the throat portion 55 suppresses the gasket 22 from being cooled by cold air.
  • a cold air sealing member 54 is attached to the partition wall 33 that partitions the freezer compartment 15 and the vegetable compartment 16 (see FIG. 1) below the freezer compartment 15. Thereby, the invasion of cold air into the throat portion 55 is suppressed. Therefore, the cold air toward the gasket attachment portion 31c is more effectively shielded.
  • the cold seal member 54 may be made of, for example, rectangular foamed polyethylene. And the cool air sealing member 54 may make the clearance gap of the throat part 55 small, and may suppress the flow of cold air.
  • a soft material such as vinyl chloride may be used as the cold air sealing member 54, and the cold air may be shielded by bringing the cold air sealing member 54 into contact with the bank portion 31b.
  • the cold air is shielded by the cold air sealing member 54 and the throat portion 55 provided on the partition wall 33 (first seal). Further, the cold air is sealed by the gasket 22 so as not to leak out of the cabinet (second seal).
  • a recessed portion 31d is disposed on the bank portion 31b of the inner plate 31.
  • the recessed portion 31 d is disposed in a portion of the bank portion 31 b that faces the partition wall 33 and constitutes the throat portion 55.
  • the plate thickness of the inner plate 31 in the recessed portion 31d is smaller than the plate thickness of the inner plate 31 in the substantially flat portion 31a and is thin.
  • the recessed portion 31d may be configured without reducing the thickness of the inner plate 31. That is, it may be configured such that the back side of the recessed portion 31d rises corresponding to the recessed portion 31d.
  • the recessed portion 31 d is disposed so as to face the cold air sealing member 54 disposed on the upper surface of the partition wall 33. And the recessed part 31d is comprised so that it may dent upward from the lower surface of the bank part 31b. Therefore, it is possible to suppress the cool air in the freezer compartment 15 from entering the throat portion 55 and to suppress the heat conduction from the inner plate 31 to the gasket 22. Thereby, it can prevent that the surface temperature of the gasket 22 falls and dew condensation occurs.
  • the recessed part 31d when the recessed part 31d is comprised by thinning the inner plate 31, the thin resin moldability and the intensity
  • the dents are arranged at a plurality of locations.
  • the inner plate 31 may be provided with a recess 31 g in the vicinity of the gasket mounting portion 31 c so as to face the portion of the gasket 22 located inside the freezer compartment 15. .
  • the recessed part 31d may be arrange
  • the vacuum heat insulator 36 is not bonded to the inner plate 31 from the center 53 of the gasket mounting portion 31c to the door cap 34. That is, the gasket mounting part (outer side) 31cb, which is a part located on the outer side of the gasket mounting part 31c, is not bonded to the vacuum heat insulator 36.
  • a space 58 is formed between the storage case 36 b of the vacuum heat insulator 36, the inner plate 31 (gasket attachment portion (outside) 31 cb), and the door cap 34.
  • the side surface portion of the vacuum heat insulator 36 and the inner surface of the substantially flat portion 31a of the inner plate 31 are bonded.
  • the warehouse inner side of the gasket attachment part 31c and the warehouse outer side of a gasket attachment part refer to the side close
  • the cool air in the freezer compartment 15 hits the inner plate 31 of the door 15a.
  • the substantially plane part 31a of the inner plate 31 which contacts cold air is cooled.
  • it seals with the gasket 22 so that cold air may not leak out of the refrigerator 100 outside.
  • the cold air sealing member 54 and the throat portion 55 prevent the cold air from flowing into the gasket attachment portion 31c. Thereby, it can suppress that the gasket 22 is directly cooled by the cool air in a store
  • the substantially flat surface portion 31a and the throat portion 55 of the inner plate 31 are cooled by the cool air in the cabinet.
  • the gasket 22 is cooled by heat conduction from the inner plate 31 and the bank portion 31b. At this time, if the gasket 22 is cooled to a dew point temperature or lower, dew condensation occurs. Therefore, from the viewpoint of preventing dew condensation, it is important to suppress heat conduction in the peripheral portion of the gasket mounting portion 31c.
  • the bank 31b is provided with a recess 31d that suppresses heat conduction. Thereby, the heat conduction in the inner plate 31 is suppressed.
  • the recessed part 31d is arrange
  • the thin part of the recessed part 31d may be disposed on the entire periphery of the inner plate 31 corresponding to the entire periphery of the front opening of the freezer compartment 15. Further, in consideration of the strength of the inner plate 31 and the resin flow during molding, the recessed portion 31 d may partially have the same thickness as the basic thick portion of the inner plate 31.
  • the dent may be configured as a heat conduction suppressing portion in which a thin thick portion is continuous on the outer side of the gasket mounting portion 31c.
  • a recessed portion 31f that is a thin-walled portion is disposed as a recessed portion in the gasket mounting portion 31cb on the outer side of the gasket mounting portion 31c.
  • the recessed portion 31f which is a U-shaped thin portion having a small cross-sectional area, is combined with a thin portion having a long distance, that is, a recessed portion 31f thinned in a wide range. .
  • the suppression effect of heat conduction is heightened.
  • the recessed portion 31f is configured as a thin shape that is recessed in the mold drawing direction 57 shown in FIG. 4 in consideration of the moldability and strength of the inner plate 31.
  • the present invention is not limited to this, and the thin-walled recessed portion 31 f may be arranged in a direction other than the mold drawing direction 57.
  • the thickness of the entire peripheral portion of the gasket attachment portion 31 c may be configured to be thinner than the other portions of the inner plate 31.
  • the through-hole part 31e may be arrange
  • the storage case 36b serving as a covering material in the vacuum heat insulating body 36 is bonded to the inner portion of the inner plate 31 from the gasket mounting portion 31c. For this reason, the storage case 36b is cooled by heat exchange with the cool air in the cabinet. That is, the portion of the storage case 36b that contacts the inner surface of the substantially flat portion 31a is cooled. And the gasket attachment part 31c is cooled by thermally conducting to the warehouse outer side of the storage case 36b.
  • the storage case 36b and the inner plate 31 are bonded to each other inside the center 53 of the gasket attachment portion 31c. Further, a space 58 is disposed between the storage case 36b, the inner plate 31 (gasket mounting portion 31cb), and the door cap 34 on the outer side of the center 53 of the gasket mounting portion 31c. Thereby, the heat exchange between the storage case 36b and the gasket attachment part 31c can be suppressed.
  • the recessed portion 31f is disposed in a portion of the gasket mounting portion 31c (gasket mounting portion 31cb) that forms a part of the space portion 58. Further, by reducing the thickness of the portion constituting the outer side of the gasket mounting portion 31c to be smaller than the thickness of the portion constituting the inner side, the heat conduction in the inner plate 31 can be further suppressed. it can.
  • the inner plate 31 (gasket mounting portion 31ca) inside the warehouse from the center 53 of the gasket mounting portion 31c and the storage case 36b are bonded. It has a configuration. However, the space 58 may be provided between the inner plate 31 and the storage case 36b in the entire gasket mounting portion 31c. Thereby, the heat exchange between the storage case 36b and the gasket attachment portion 31c can be further suppressed.
  • the portion (side surface portion 36ba) of the storage case 36b facing the door cap 34 and the door cap 34 are in contact with each other. Therefore, the door cap 34 is cooled by heat conduction from the storage case 36b.
  • the temperature of the air in contact with the door cap 34 is higher than the temperature of the outside air in contact with the gasket 22 and the gasket mounting portion 31c. Therefore, the door cap 34 does not decrease to the dew point temperature. For this reason, even if it makes the side part 36ba and the door cap 34 contact each other, quality does not fall.
  • the side surface portion 36 ba of the vacuum heat insulator 36 and the door cap 34 are bonded.
  • the vacuum heat insulator 36 is insulated not only between the first main surface inside the warehouse and the inner surface of the substantially flat portion 31a but also by adhering the side surface portion 36ba of the vacuum heat insulator 36 and the door cap 34.
  • the torsional strength of the door casing 21 is increased, and the durability of the heat insulating door casing 21 is improved.
  • the side surface portion 36ba of the vacuum heat insulating body 36 and the door cap 34 may be bonded to each other in order to firmly join them, or may be bonded to a part of the contacting surfaces.
  • FIG. 5 is a cross-sectional view of the freezer compartment door according to the second embodiment as viewed from the right side.
  • FIG. 6 is an enlarged view of a main part of the cross-sectional view of the refrigerator door shown in FIG. 5.
  • the structure of the heat insulating material inside the door is different from the structure of the heat insulating material in the first embodiment.
  • the heat insulating door casing 21 constituting the freezer compartment door 15 a of the freezer compartment 15 has an inner plate 31 and an outer plate 32.
  • a plate-like vacuum heat insulating material 61 is disposed between the inner plate 31 and the outer plate 32, and a foamed heat insulating material 62 of hard foamed urethane is filled therein.
  • the bank portion 31 b of the inner plate 31 has a recessed portion 31 d at a portion that faces the partition wall 33 and forms the throat portion 55.
  • the recess 31 d is formed thinner than the thickness of the inner plate 31.
  • the recessed part 31d can suppress heat conduction if it is formed thinner.
  • the thickness of the recessed portion 31d is configured to be one third to one half of the plate thickness of the substantially flat portion 31a of the inner plate 31. May be.
  • the number of the recessed parts 31d may be one, it will be more effective when arrange
  • the recessed part 31d may be arrange
  • the foam heat insulating material 62 enters the recessed portion 31d.
  • the cooling of the gasket 22 due to heat conduction is suppressed by disposing the recess 31d as in the first embodiment. Thereby, dew condensation on the gasket 22 can be avoided.
  • a recessed portion 31f may be disposed in a portion (gasket mounting portion 31cb) located on the outer side of the gasket 22. And you may make the plate
  • the refrigerator door according to the present disclosure can improve the quality of the refrigerator by avoiding condensation of the gasket. Therefore, the present invention can also be applied to household refrigerators, commercial refrigerators, refrigerated refrigeration facilities, and the like having a heat insulating door provided with a gasket.
  • refrigerator main body 12 refrigerator compartment 12a door (refrigerator compartment door) 13 Ice making room 13a Door (ice making room door) 14 Switching room 14a Door (switching room door) 15 Freezer compartment 15a Door (freezer compartment door) 16 Vegetable room 16a Door (vegetable room door) 21 Insulating door housing 22 Gasket 23 Frame 31 Inner plate 31a Substantially flat portion 31b Bank portion 31c Gasket mounting portion 31ca Gasket mounting portion (inside of warehouse) 31cb gasket mounting (outside) 31d dent (first dent) 31e Through-hole part 31f Recessed part (2nd recessed part) 31g Indented portion 32 Outer plate 33 Partition wall 34 Door cap 36 Vacuum heat insulator 36a Core material 36b Storage case 36ba Side surface portion 36c Sealing member 54 Cold air seal member 55 Throat portion 58 Space portion 61 Vacuum heat insulating material 62 Foam heat insulating material 100 Refrigerator

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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)
  • Refrigerator Housings (AREA)

Abstract

This refrigerator is provided with a main refrigerator body, and a door (15a) that opens/closes a front opening part of the main refrigerator body. The door (15a) comprises: an inner panel (31); an outer panel (32); a thermal insulation material (36) arranged between the inner panel (31) and the outer panel (32); and a gasket (22) that is attached to the outer panel (31) and that, by being in contact with a peripheral edge of the front opening part, seals off the front opening part. The inner panel (31) comprises an embankment section (31b) that faces the front opening part and protrudes out toward the inside of the refrigerator. A recessed section (31d) and/or a through hole section (31e) is disposed in the embankment section (31b) of the inner panel (31).

Description

冷蔵庫refrigerator
 本開示は冷蔵庫に関し、特にその冷蔵室扉に関するものである。 This disclosure relates to refrigerators, and particularly to the refrigerator compartment door.
 従来、冷蔵庫は、断熱性能の向上によって省エネルギ化を図るために、冷蔵庫本体となる箱体と前面開口部を閉扉する断熱扉とを有し、真空断熱材によって冷蔵庫本体と断熱扉との間の付近の断熱性能を向上させている。 Conventionally, in order to save energy by improving heat insulation performance, the refrigerator has a box body serving as a refrigerator main body and a heat insulating door that closes the front opening, and a vacuum heat insulating material between the refrigerator main body and the heat insulating door. The heat insulation performance in the vicinity of is improved.
 また、従来の冷蔵庫は、内板と、外板と、内板と外板との間に収容される断熱材と、ガスケットと、で構成される冷蔵庫の扉を有する。ガスケットは、内板に設けられた挿入受け形状を有するガスケット取付け部に挿入される形状を有する。そして、ガスケットは、ガスケット取付け部に挿入されて固定される(例えば、特許文献1参照)。 Also, the conventional refrigerator has a refrigerator door composed of an inner plate, an outer plate, a heat insulating material accommodated between the inner plate and the outer plate, and a gasket. The gasket has a shape to be inserted into a gasket mounting portion having an insertion receiving shape provided on the inner plate. And a gasket is inserted and fixed to a gasket attachment part (for example, refer to patent documents 1).
 しかしながら、特許文献1に記載の冷蔵庫においては、庫内の冷気によって内板が冷却されることで、熱伝導によってガスケット取付け部が冷却される。このため、ガスケットの表面温度が低下することで、ガスケットが結露する。また、ガスケットと庫外との熱交換により、省エネルギ性能が悪化する。 However, in the refrigerator described in Patent Document 1, the gasket mounting portion is cooled by heat conduction when the inner plate is cooled by the cool air in the cabinet. For this reason, when the surface temperature of the gasket is lowered, the gasket is condensed. In addition, the energy saving performance deteriorates due to heat exchange between the gasket and the outside of the cabinet.
特開2017-62110号公報JP 2017-62110 A 日本国特許第5310928号公報Japanese Patent No. 5310928
 本開示は、扉が結露することを防いで品質を向上するとともに、ガスケットと庫外との熱交換を抑制して、省エネルギ性能を向上した冷蔵庫を提供する。 This disclosure provides a refrigerator that improves the quality by preventing the door from condensing and improving the energy saving performance by suppressing heat exchange between the gasket and the outside of the cabinet.
 本開示の冷蔵庫は、冷蔵庫本体と、冷蔵庫本体の前面開口部を開閉する扉と、を備え、扉は、内板と、外板と、内板と外板との間に配置された断熱材と、内板に取付けられ、前面開口部の周縁部に接触することで前面開口部を密閉するガスケットと、を有し、内板は、前面開口部に対向するとともに、庫内側に向かって突出する土手部を有し、内板の土手部に、第1凹み部及び貫通孔部の少なくともいずれかが配置される。 A refrigerator according to the present disclosure includes a refrigerator body and a door that opens and closes a front opening of the refrigerator body, and the door is an insulating plate disposed between an inner plate, an outer plate, and the inner plate and the outer plate. And a gasket that is attached to the inner plate and seals the front opening by contacting the peripheral edge of the front opening, and the inner plate faces the front opening and protrudes toward the inner side A bank portion is provided, and at least one of the first recessed portion and the through hole portion is disposed on the bank portion of the inner plate.
図1は、本開示の実施の形態1における冷蔵庫の正面図である。FIG. 1 is a front view of the refrigerator according to the first embodiment of the present disclosure. 図2は、実施の形態1における冷蔵庫の扉の斜視図である。FIG. 2 is a perspective view of the refrigerator door in the first embodiment. 図3は、実施の形態1における冷蔵庫の扉を右側から視た断面図である。FIG. 3 is a cross-sectional view of the refrigerator door in the first embodiment when viewed from the right side. 図4は、図3に示す冷蔵庫の扉の断面図について、要部を拡大した図である。4 is an enlarged view of a main part of the sectional view of the door of the refrigerator shown in FIG. 図5は、本開示の実施の形態2における冷蔵庫の扉を右側から視た断面図である。FIG. 5 is a cross-sectional view of the refrigerator door according to the second embodiment of the present disclosure as viewed from the right side. 図6は、図5に示す冷蔵庫の扉の断面図について、要部を拡大した図である。FIG. 6 is an enlarged view of a main part of the cross-sectional view of the refrigerator door shown in FIG. 5.
 本開示の一態様に係る冷蔵庫は、冷蔵庫本体と、冷蔵庫本体の前面開口部を開閉する扉と、を備え、扉は、内板と、外板と、内板と外板との間に配置された断熱材と、内板に取付けられ、前面開口部の周縁部に接触することで前面開口部を密閉するガスケットと、を有し、内板は、前面開口部に対向するとともに、庫内側に向かって突出する土手部を有し、内板の土手部に、第1凹み部及び貫通孔部の少なくともいずれかが配置される。 A refrigerator according to an aspect of the present disclosure includes a refrigerator body and a door that opens and closes a front opening of the refrigerator body, and the door is disposed between an inner plate, an outer plate, and the inner plate and the outer plate. And a gasket that is attached to the inner plate and seals the front opening by contacting the peripheral edge of the front opening, and the inner plate faces the front opening, A bank portion projecting toward the wall, and at least one of the first dent portion and the through hole portion is disposed on the bank portion of the inner plate.
 このような構成により、貯蔵室内の冷気が、内板を通じてガスケットへ熱伝導することを抑制し、ガスケットの表面温度の低下による結露を防ぐことができる。 Such a configuration can prevent the cool air in the storage chamber from conducting heat to the gasket through the inner plate and prevent condensation due to a decrease in the surface temperature of the gasket.
 本開示の他の一態様に係る冷蔵庫は、内板が、ガスケットを取付けるガスケット取付け部を有し、ガスケット取付け部の庫外側に位置する部分に、第2凹み部が配置されてもよい。 In the refrigerator according to another aspect of the present disclosure, the inner plate has a gasket mounting portion to which a gasket is attached, and the second dent portion may be disposed in a portion located on the outer side of the gasket mounting portion.
 このような構成により、内板における熱伝導をさらに抑制することができる。 Such a configuration can further suppress heat conduction in the inner plate.
 本開示のさらに他の一態様に係る冷蔵庫は、第2凹み部における内板の板厚が、ガスケット取付け部の庫内側の部分の板厚より小さく構成されてもよい。 The refrigerator according to yet another aspect of the present disclosure may be configured such that the thickness of the inner plate in the second recess is smaller than the thickness of the inner portion of the gasket mounting portion.
 このような構成により、結露に対する信頼性を向上するとともに、省エネルギ性能をさらに良化することができる。 Such a configuration can improve the reliability against condensation and further improve the energy saving performance.
 本開示のさらに他の一態様に係る冷蔵庫は、断熱材が真空断熱体であってもよい。そして、ガスケット取付け部の庫内側に位置する部分と、真空断熱体とが接着され、ガスケット取付け部の庫外側に位置する部分と、真空断熱体との間に空間が配置されてもよい。 In the refrigerator according to yet another aspect of the present disclosure, the heat insulating material may be a vacuum heat insulating material. And the part located in the store | warehouse | chamber interior of a gasket attachment part and a vacuum heat insulating body may adhere | attach, and space may be arrange | positioned between the part located in the warehouse exterior of a gasket attachment part, and a vacuum heat insulator.
 このような構成により、ガスケット取付け部において、真空断熱体と内板とが接触する範囲を小さくして、熱伝導を抑制することができる。従って、ガスケットが冷やされることを抑制して、結露への信頼性を向上することができる。 With such a configuration, in the gasket mounting portion, it is possible to reduce the range in which the vacuum heat insulator and the inner plate are in contact with each other, thereby suppressing heat conduction. Therefore, it is possible to suppress the cooling of the gasket and improve the reliability to dew condensation.
 本開示のさらに他の一態様に係る冷蔵庫は、扉が、扉の厚み方向と平行な側面に扉キャップを有し、扉キャップと真空断熱体とが接着されてもよい。 In the refrigerator according to still another aspect of the present disclosure, the door may have a door cap on a side surface parallel to the thickness direction of the door, and the door cap and the vacuum heat insulating body may be bonded.
 このような構成により、扉全体の強度が向上し、扉の耐久性を確保することができる。 Such a configuration improves the strength of the entire door and ensures the durability of the door.
 本開示のさらに他の一態様に係る冷蔵庫は、真空断熱体が、芯材と、芯材を収納する収納部と、収納部の開口部を封止する封止部材と、を有するとともに、収納部が内板に対向し、封止部材が外板に対向して外板に覆われるように配置されてもよい。 In the refrigerator according to yet another aspect of the present disclosure, the vacuum heat insulator includes a core material, a storage unit that stores the core material, and a sealing member that seals an opening of the storage unit. The portion may face the inner plate, and the sealing member may face the outer plate and be covered with the outer plate.
 このような構成により、断熱材の形状の自由度を確保しつつ、断熱材における真空を維持することができる。従って、扉の内部全体を真空断熱体で構成することができ、冷蔵庫の省エネルギ性能が向上する。 With such a configuration, it is possible to maintain the vacuum in the heat insulating material while ensuring the degree of freedom of the shape of the heat insulating material. Accordingly, the entire interior of the door can be configured with a vacuum insulator, and the energy saving performance of the refrigerator is improved.
 以下、本開示の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本開示が限定されるものではない。 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the present disclosure is not limited by the embodiment.
 (実施の形態1)
 [1.全体構成]
 図1は、冷蔵庫の全体及び各部構成を説明する図である。
(Embodiment 1)
[1. overall structure]
FIG. 1 is a diagram illustrating the entire refrigerator and the components.
 図1に示すように、冷蔵庫100は、断熱性を有する箱体で構成された冷蔵庫本体11を有する。冷蔵庫本体11は、主に、鋼板で構成された外箱、ABS樹脂等の樹脂で成形された内箱、及び、外箱と内箱の間に注入された断熱材で構成されている。 As shown in FIG. 1, the refrigerator 100 includes a refrigerator main body 11 formed of a box body having heat insulation properties. The refrigerator main body 11 is mainly composed of an outer box made of a steel plate, an inner box formed of a resin such as ABS resin, and a heat insulating material injected between the outer box and the inner box.
 冷蔵庫本体11は、仕切り板によって、複数の収納室が断熱されて区画されている。冷蔵庫100の最上部には、冷蔵室12が配置されている。また、冷蔵室12の下部には、製氷室13及び切替室14が横並びに配置されており、製氷室13及び切替室14の下部に、冷凍室15が配置されている。また、冷蔵庫100の最下部には、野菜室16が配置されている。これらの各収納室の前面には、外気から庫内を区画するための、断熱性を有する扉12a,13a,14a,15a,16aがそれぞれ配置されている。これらの扉は、冷蔵庫本体11の前面開口部の前面に配置されている。 The refrigerator main body 11 has a plurality of storage rooms insulated by partition plates. A refrigerator compartment 12 is disposed at the top of the refrigerator 100. In addition, an ice making room 13 and a switching room 14 are arranged side by side in the lower part of the refrigerator compartment 12, and a freezing room 15 is arranged in the lower part of the ice making room 13 and the switching room 14. In addition, a vegetable room 16 is disposed at the bottom of the refrigerator 100. In front of each of the storage rooms, doors 12a, 13a, 14a, 15a, and 16a having heat insulation properties are provided for partitioning the interior from the outside air. These doors are arranged in front of the front opening of the refrigerator main body 11.
 冷蔵室12の最上部の後方の領域には、機械室が配置されている。機械室内には、圧縮機及び水分除去を行うドライヤ等の、冷凍サイクルを構成する部品が収納されている。 A machine room is arranged in the rear area at the top of the refrigerator compartment 12. In the machine room, components constituting the refrigeration cycle such as a compressor and a dryer for removing moisture are housed.
 また、冷凍室15の後方には、冷気を生成する冷却室が配置されている。冷却室内には、冷却器及び冷却ファンが配置されている。冷却ファンは、冷却器で冷却されて生成された冷気を、冷蔵室12、製氷室13、切替室14、野菜室16、及び冷凍室15に送風する。さらに、冷却ファンからの冷気の風量を調節する風量調節ダンパが、冷却風路内に配置されている。また、冷却器及び冷却器の周辺に付着する、霜及び氷を除霜するために、ラジアントヒータ、ドレンパン、及びドレンチューブ蒸発皿等が設けられている。 Further, a cooling chamber that generates cold air is disposed behind the freezing chamber 15. A cooler and a cooling fan are arranged in the cooling chamber. The cooling fan blows cold air generated by being cooled by the cooler to the refrigerator compartment 12, the ice making chamber 13, the switching chamber 14, the vegetable compartment 16, and the freezer compartment 15. Further, an air volume adjustment damper for adjusting the air volume of the cool air from the cooling fan is disposed in the cooling air passage. Further, a radiant heater, a drain pan, a drain tube evaporating dish, and the like are provided in order to defrost frost and ice adhering to the cooler and the periphery of the cooler.
 冷蔵室12の温度は、貯蔵物を冷蔵保存するために貯蔵物が凍らない温度が下限として設定され、通常1℃~5℃である。また、最下部の野菜室16の温度は、冷蔵室12の温度と同等又は冷蔵室12の温度より若干高い温度に設定され、通常2℃~7℃である。さらに、冷凍室15の温度は、冷凍温度帯に設定されており、貯蔵物を冷凍保存するために、通常マイナス22℃~マイナス15℃である。しかしながら、冷凍室15の温度は、貯蔵物の冷凍保存状態の向上のために、例えばマイナス30℃又はマイナス25℃等の低温に設定されてもよい。 The temperature of the refrigerator compartment 12 is set as a lower limit of the temperature at which the stored product is not frozen in order to store the stored product in a refrigerator, and is usually 1 ° C. to 5 ° C. Further, the temperature of the lowermost vegetable room 16 is set to a temperature equal to or slightly higher than the temperature of the refrigerated room 12, and is usually 2 ° C to 7 ° C. Furthermore, the temperature of the freezer compartment 15 is set to a freezing temperature zone, and is usually −22 ° C. to −15 ° C. in order to store the stored product in a frozen state. However, the temperature of the freezer compartment 15 may be set to a low temperature such as minus 30 ° C. or minus 25 ° C., for example, in order to improve the frozen preservation state of the stored product.
 製氷室13内の上部には自動製氷機が配置されている。自動製氷機は、冷蔵室12内の貯水タンクから送られた水で氷を生成する。生成された氷は、製氷室13内の下部に配置された貯氷容器に貯蔵される。 In the upper part of the ice making chamber 13, an automatic ice making machine is arranged. The automatic ice making machine generates ice with water sent from a water storage tank in the refrigerator compartment 12. The generated ice is stored in an ice storage container disposed in the lower part of the ice making chamber 13.
 切替室14は、切替室14内の温度が、複数の温度帯の間で切り替えることができるように構成されている。複数の温度帯には、例えば、1℃~5℃で設定される冷蔵温度帯、2℃~7℃で設定される野菜温度帯、通常マイナス22℃~マイナス15℃で設定される冷凍温度の温度帯の他、冷蔵温度帯と冷凍温度帯との間の温度で予め設定される温度帯が含まれる。 The switching chamber 14 is configured so that the temperature in the switching chamber 14 can be switched between a plurality of temperature zones. The multiple temperature zones include, for example, a refrigeration temperature zone set at 1 ° C. to 5 ° C., a vegetable temperature zone set at 2 ° C. to 7 ° C., and a freezing temperature usually set at −22 ° C. to −15 ° C. In addition to the temperature zone, a temperature zone preset by a temperature between the refrigeration temperature zone and the freezing temperature zone is included.
 切替室14は、製氷室13に並設されている。切替室14は、独立して扉を備えた収納室である。切替室14の扉14aは、引き出し式扉として構成される場合が多い。 The switching room 14 is arranged in parallel with the ice making room 13. The switching chamber 14 is a storage chamber provided with a door independently. The door 14a of the switching chamber 14 is often configured as a pull-out door.
 なお、本実施の形態では、切替室14を、冷蔵温度帯及び冷凍温度帯を含む複数の温度帯の間で切替えが可能な収納室としているが、切替え可能な温度帯は上述の組み合わせに限られない。例えば、冷蔵温度帯での貯蔵機能が、冷蔵室12及び野菜室16に委ねられるとともに、冷凍温度帯で貯蔵機能は冷凍室15に委ねられてもよい。そして、切替室14は、冷蔵温度帯と冷凍温度帯との間の中間の温度帯でのみの切替えに特化した収納室として構成されてもよい。また、切替室14は、特定の温度帯に温度が固定された収納室であってもよい。例えば、近年冷凍食品の需要が多くなってきたことに伴い、切替室14は、冷凍用に固定された収納室として構成されてもよい。 In the present embodiment, the switching chamber 14 is a storage chamber that can be switched between a plurality of temperature zones including a refrigeration temperature zone and a refrigeration temperature zone, but the switchable temperature zone is limited to the combination described above. I can't. For example, the storage function in the refrigeration temperature zone may be left to the refrigeration room 12 and the vegetable room 16, and the storage function may be left to the freezer room 15 in the freezing temperature zone. Then, the switching chamber 14 may be configured as a storage chamber specialized for switching only in an intermediate temperature zone between the refrigeration temperature zone and the freezing temperature zone. The switching chamber 14 may be a storage chamber whose temperature is fixed in a specific temperature range. For example, with the recent increase in demand for frozen food, the switching chamber 14 may be configured as a storage chamber fixed for freezing.
 [2.冷蔵庫扉の構成]
 次に、冷蔵庫扉の構成について、冷凍室15の扉15aを例に説明する。なお、本開示の冷蔵庫扉は、冷凍室15の扉15aに限られず、冷蔵室12の扉12a、製氷室13の扉13a、切替室14の扉14a、及び野菜室16の扉16aのいずれに適用されてもよい。
[2. Configuration of refrigerator door]
Next, the structure of the refrigerator door will be described taking the door 15a of the freezer compartment 15 as an example. In addition, the refrigerator door of this indication is not restricted to the door 15a of the freezer compartment 15, In any of the door 12a of the refrigerator compartment 12, the door 13a of the ice making room 13, the door 14a of the switching room 14, and the door 16a of the vegetable compartment 16 May be applied.
 図2は、本実施の形態における冷蔵庫の扉の斜視図である。図3は、本実施の形態における冷蔵庫の扉を右側から視た断面図である。 FIG. 2 is a perspective view of the refrigerator door in the present embodiment. FIG. 3 is a sectional view of the refrigerator door in the present embodiment as viewed from the right side.
 図2に示すように、冷凍室15の扉(冷凍室扉)15aは、断熱扉筐体21、ガスケット22、及び、冷凍室15の側壁に配置されたレールとの間で摺動するフレーム23を有する。扉15aは、冷蔵庫本体11の前面開口部に配置され、前後方向に引き出し可能に構成されている。断熱扉筐体21は、内板31と、外板32と、を有する。外板32の外面は、断熱扉筐体21の外面を構成している。断熱扉筐体21の外面は、常に冷蔵庫本体11の外部に露出する部分である。 As shown in FIG. 2, the door (freezer compartment door) 15 a of the freezer compartment 15 slides between the heat insulating door casing 21, the gasket 22, and the rails arranged on the side walls of the freezer compartment 15. Have The door 15a is arrange | positioned at the front-surface opening part of the refrigerator main body 11, and is comprised so that it can pull out in the front-back direction. The heat insulating door casing 21 has an inner plate 31 and an outer plate 32. The outer surface of the outer plate 32 constitutes the outer surface of the heat insulating door casing 21. The outer surface of the heat insulating door casing 21 is a portion that is always exposed to the outside of the refrigerator body 11.
 図3に示すように、内板31は、冷凍室15(図1参照)の前面開口部と対向する部分である略平面部31a、略平面部31aの外周に配置された土手部31b、及びガスケット22が圧入されるガスケット取付け部31cが一体的に形成されて構成されている。本実施の形態では、内板31は、樹脂製である。 As shown in FIG. 3, the inner plate 31 includes a substantially flat portion 31a that is a portion facing the front opening of the freezer compartment 15 (see FIG. 1), a bank portion 31b disposed on the outer periphery of the substantially flat portion 31a, and A gasket mounting portion 31c into which the gasket 22 is press-fitted is integrally formed. In the present embodiment, the inner plate 31 is made of resin.
 内板31の土手部31bは、前面開口部に対向するとともに、冷凍室15の内方(庫内側)に向かって突出している。土手部31bは、扉15aが閉じられた状態において冷凍室15内に入り込むことで、冷凍室15を区画している区画壁33(後述の図4参照)との間に、隙間であるスロート部55(後述の図4参照)を形成する。なお、本実施の形態では、スロート部55の幅が狭くなるように土手部31bが配置されている。 The bank portion 31b of the inner plate 31 is opposed to the front opening and protrudes toward the inside of the freezer compartment 15 (inner side). The bank portion 31b enters the freezer compartment 15 when the door 15a is closed, so that the throat portion that is a gap between the bank portion 31b and the partition wall 33 (see FIG. 4 described later) that partitions the freezer compartment 15 is provided. 55 (see FIG. 4 described later). In the present embodiment, the bank portion 31b is arranged so that the width of the throat portion 55 is narrowed.
 内板31は、上述のように樹脂製であり、射出成型で成形される。内板31の内部には、内板31の内面形状、すなわち、略平面部31a及び土手部31bの凹凸形状に対応して成形された、後述の真空断熱体36が収容される。 The inner plate 31 is made of resin as described above, and is formed by injection molding. Inside the inner plate 31, a vacuum heat insulating member 36 to be described later, which is molded corresponding to the inner surface shape of the inner plate 31, that is, the uneven shape of the substantially flat surface portion 31 a and the bank portion 31 b is accommodated.
 扉15aの外表面を形成する外板32と、内板31との間には、断熱材として真空断熱体36が配置されている。真空断熱体36は、芯材36aと、芯材36aを収納する収納ケース36bと、収納ケース36bの開口部を封止する封止部材36cとを有する。本実施の形態では、収納ケース36bは、多層の軟質材料で形成されている。また、封止部材36cによって封止された収納ケース36bは、内部が減圧された状態で密封されている。 Between the outer plate 32 that forms the outer surface of the door 15a and the inner plate 31, a vacuum heat insulator 36 is disposed as a heat insulating material. The vacuum heat insulator 36 includes a core material 36a, a storage case 36b that stores the core material 36a, and a sealing member 36c that seals an opening of the storage case 36b. In the present embodiment, the storage case 36b is formed of a multilayer soft material. Further, the storage case 36b sealed by the sealing member 36c is sealed in a state where the inside is decompressed.
 封止部材36cは、矩形状のフィルムであり、収納ケース36bの開口部を密閉するように構成されている。封止部材36cとしては、例えば、熱可塑性樹脂等のラミネートフィルムが用いられてもよい。また、ラミネートフィルムは、アルミニウム又はステンレス等の金属層を有していてもよい。 The sealing member 36c is a rectangular film and is configured to seal the opening of the storage case 36b. As the sealing member 36c, for example, a laminate film such as a thermoplastic resin may be used. Moreover, the laminate film may have a metal layer such as aluminum or stainless steel.
 収納ケース36bは、内板31の内面形状、すなわち、略平面部31a、土手部31b及びガスケット取付け部31c等の凹凸形状に合わせて形成される。収納ケース36bは、真空成形、射出成形、圧空成形、又はプレス成形等の手法により作製された成形品である。収納ケース36bは、内板31の材料であるABS樹脂よりも柔らかい材料(例えば、エチレン-ビニルアルコール共重合樹脂等の軟質材料)の層が複数積層された多層シートにより形成されている。これにより、収納ケース36bは、内板31の内部に収容される際に、内板31の内面に合わせることができる。 The storage case 36b is formed in accordance with the inner surface shape of the inner plate 31, that is, the uneven shape such as the substantially flat surface portion 31a, the bank portion 31b, and the gasket mounting portion 31c. The storage case 36b is a molded product produced by a technique such as vacuum molding, injection molding, pressure molding, or press molding. The storage case 36b is formed of a multilayer sheet in which a plurality of layers of a material softer than the ABS resin that is the material of the inner plate 31 (for example, a soft material such as ethylene-vinyl alcohol copolymer resin) is stacked. Thereby, the storage case 36 b can be matched with the inner surface of the inner plate 31 when stored in the inner plate 31.
 収納ケース36bは、開口部を有する凹状に構成され、内部空間に芯材36aを収容している。収納ケース36bは、図3に示す前側に向けて開口しており、後側に向けて凹んでいる。 The storage case 36b is configured in a concave shape having an opening, and stores the core material 36a in the internal space. The storage case 36b opens toward the front side shown in FIG. 3, and is recessed toward the rear side.
 芯材36aは、連続気泡ウレタンフォーム、ガラス繊維、ロックウール、アルミナ繊維、又はポリエチレンテレフタレート繊維等で構成されている。連続気泡ウレタンフォームは、例えば、特許文献2に開示されている特徴を有するものであってもよい。芯材36aは、内部に吸着剤(図示しない)を有する。吸着材としては、水分を吸着除去する水分吸着剤、及び、大気ガス等のガスを吸着する気体吸着剤が挙げられる。吸着剤は、芯材36aの内部に嵌められる。吸着剤が芯材36aに嵌められた状態で、芯材36a及び吸着材は、収納ケース36bの内面(内部空間)の形状と実質的に同一の形状に形成される。 The core material 36a is made of open-cell urethane foam, glass fiber, rock wool, alumina fiber, polyethylene terephthalate fiber, or the like. The open cell urethane foam may have, for example, the characteristics disclosed in Patent Document 2. The core material 36a has an adsorbent (not shown) inside. Examples of the adsorbent include a moisture adsorbent that adsorbs and removes moisture, and a gas adsorbent that adsorbs a gas such as atmospheric gas. The adsorbent is fitted inside the core member 36a. In a state where the adsorbent is fitted to the core material 36a, the core material 36a and the adsorbent are formed in substantially the same shape as the shape of the inner surface (internal space) of the storage case 36b.
 真空断熱体36の収納ケース36bは、内板31の内面と合着して配置される。 The storage case 36 b of the vacuum heat insulator 36 is disposed so as to be attached to the inner surface of the inner plate 31.
 扉15aは、扉15aの厚み方向(図3の前後方向)と平行な側面に扉キャップ34を有し、扉キャップ34は、扉15aの外周を構成する。そして、収納ケース36bの外周面である側面部36baに対向するように、扉キャップ34が配置されている。扉キャップ34と真空断熱体36の収納ケース36bとは、接着されて固定されている。 The door 15a has a door cap 34 on a side surface parallel to the thickness direction of the door 15a (front-rear direction in FIG. 3), and the door cap 34 constitutes the outer periphery of the door 15a. And the door cap 34 is arrange | positioned so as to oppose the side part 36ba which is an outer peripheral surface of the storage case 36b. The door cap 34 and the storage case 36b of the vacuum heat insulator 36 are bonded and fixed.
 断熱扉筐体21の外板32は、矩形の平板形状であって、ガラス板等により構成されている。外板32と、真空断熱体36の封止部材36c及び扉キャップ34とは、接着剤又は両面テープ等で接着されている。これにより、外板32が固定されている。 The outer plate 32 of the heat insulating door casing 21 has a rectangular flat plate shape and is made of a glass plate or the like. The outer plate 32, the sealing member 36c of the vacuum heat insulator 36, and the door cap 34 are bonded with an adhesive or a double-sided tape. Thereby, the outer plate 32 is fixed.
 図4は、図3に示す冷蔵庫の扉の断面図について、要部を拡大した図である。 FIG. 4 is an enlarged view of a main part of the sectional view of the refrigerator door shown in FIG.
 図4に示すように、内板31の土手部31bと、区画壁33との間に、スロート部55(隙間)が構成されている。これにより、冷凍室15の庫内から扉15aに向かう冷気が、ガスケット取付け部31cに直接当たるのを回避している。すなわち、スロート部55は、ガスケット22が冷気によって冷却されることを抑制する。 As shown in FIG. 4, a throat portion 55 (gap) is formed between the bank portion 31 b of the inner plate 31 and the partition wall 33. Thereby, it is avoided that the cool air which goes to the door 15a from the inside of the freezer compartment 15 hits the gasket attachment part 31c directly. That is, the throat portion 55 suppresses the gasket 22 from being cooled by cold air.
 また、冷凍室15と、冷凍室15の下部の野菜室16(図1参照)とを区画する区画壁33の冷凍室15側には、冷気シール部材54が貼付されて配置されている。これにより、スロート部55への冷気の侵入が抑制される。従って、ガスケット取付け部31cに向かう冷気がより効果的に遮蔽される。冷気シール部材54は、例えば、矩形の発泡ポリエチレン等で構成されてもよい。そして、冷気シール部材54は、スロート部55の隙間を小さくし、冷気の流れを抑制するものでもよい。また、冷気シール部材54として、例えば塩化ビニル等の柔軟な素材を用い、冷気シール部材54を土手部31bに接触させることで冷気を遮蔽してもよい。 Further, a cold air sealing member 54 is attached to the partition wall 33 that partitions the freezer compartment 15 and the vegetable compartment 16 (see FIG. 1) below the freezer compartment 15. Thereby, the invasion of cold air into the throat portion 55 is suppressed. Therefore, the cold air toward the gasket attachment portion 31c is more effectively shielded. The cold seal member 54 may be made of, for example, rectangular foamed polyethylene. And the cool air sealing member 54 may make the clearance gap of the throat part 55 small, and may suppress the flow of cold air. Alternatively, a soft material such as vinyl chloride may be used as the cold air sealing member 54, and the cold air may be shielded by bringing the cold air sealing member 54 into contact with the bank portion 31b.
 このような構成により、まず、冷気は、区画壁33に設けられた冷気シール部材54とスロート部55によって遮蔽される(第1のシール)。また、冷気は、ガスケット22によって、庫外に漏洩しないようにシールされる(第2のシール)。 With such a configuration, first, the cold air is shielded by the cold air sealing member 54 and the throat portion 55 provided on the partition wall 33 (first seal). Further, the cold air is sealed by the gasket 22 so as not to leak out of the cabinet (second seal).
 本実施の形態では、内板31の土手部31bに、凹み部31dが配置されている。図4に示すように、凹み部31dは、区画壁33と対面してスロート部55を構成する、土手部31bの部分に配置されている。凹み部31dにおける内板31の板厚は、略平面部31aにおける内板31の板厚よりも小さく、薄肉である。なお、凹み部31dは、内板31を薄肉化することなく構成されてもよい。すなわち、凹み部31dに対応して、凹み部31dの背面側が盛り上がるように構成されてもよい。 In the present embodiment, a recessed portion 31d is disposed on the bank portion 31b of the inner plate 31. As shown in FIG. 4, the recessed portion 31 d is disposed in a portion of the bank portion 31 b that faces the partition wall 33 and constitutes the throat portion 55. The plate thickness of the inner plate 31 in the recessed portion 31d is smaller than the plate thickness of the inner plate 31 in the substantially flat portion 31a and is thin. The recessed portion 31d may be configured without reducing the thickness of the inner plate 31. That is, it may be configured such that the back side of the recessed portion 31d rises corresponding to the recessed portion 31d.
 また、本実施の形態では、凹み部31dは、区画壁33の上面に配置された冷気シール部材54と対面して配置されている。そして、凹み部31dは、土手部31bの下面から上方に向けて凹むように構成されている。従って、冷凍室15の庫内の冷気がスロート部55に侵入するのを抑制するとともに、内板31からガスケット22への熱伝導を抑制することができる。これにより、ガスケット22の表面温度が低下して結露することを防ぐことができる。 Further, in the present embodiment, the recessed portion 31 d is disposed so as to face the cold air sealing member 54 disposed on the upper surface of the partition wall 33. And the recessed part 31d is comprised so that it may dent upward from the lower surface of the bank part 31b. Therefore, it is possible to suppress the cool air in the freezer compartment 15 from entering the throat portion 55 and to suppress the heat conduction from the inner plate 31 to the gasket 22. Thereby, it can prevent that the surface temperature of the gasket 22 falls and dew condensation occurs.
 なお、内板31を薄肉化することで凹み部31dが構成される場合は、薄樹脂成型性及び内板31の強度を考慮し、凹み部31dは、凹み部31dにおける板厚が、内板31の略平面部31aの基本肉厚の3分の1から2分の1となるように構成されてもよい。 In addition, when the recessed part 31d is comprised by thinning the inner plate 31, the thin resin moldability and the intensity | strength of the inner plate 31 are considered, and the recessed part 31d has the plate | board thickness in the recessed part 31d, an inner plate. You may be comprised so that it may become 1/3 to 1/2 of the basic thickness of the substantially flat part 31a of 31.
 なお、凹み部は、複数個所に配置されるとより好ましい。例えば、図4に示すように、内板31は、ガスケット取付け部31cの近傍において、冷凍室15の庫内側に位置するガスケット22の部分と対向するように、凹み部31gが配置されてもよい。 In addition, it is more preferable that the dents are arranged at a plurality of locations. For example, as shown in FIG. 4, the inner plate 31 may be provided with a recess 31 g in the vicinity of the gasket mounting portion 31 c so as to face the portion of the gasket 22 located inside the freezer compartment 15. .
 なお、冷凍室15の前面開口部の全周に対応して、扉15aの全周に土手部31bが配置される場合、扉15aの全周に亘って凹み部31dが配置されてもよい。これにより、より効果的にガスケット22の表面温度の低下による結露を防ぐことができる。 In addition, when the bank part 31b is arrange | positioned in the perimeter of the door 15a corresponding to the perimeter of the front opening part of the freezer compartment 15, the recessed part 31d may be arrange | positioned over the perimeter of the door 15a. Thereby, the dew condensation by the fall of the surface temperature of the gasket 22 can be prevented more effectively.
 なお、本実施の形態では、真空断熱体36は、ガスケット取付け部31cの中心53から扉キャップ34にかけて、内板31と接着されていない。すなわち、ガスケット取付け部31cの庫外側に位置する部分であるガスケット取付け部(庫外側)31cbは、真空断熱体36と接着されていない。そして、真空断熱体36の収納ケース36bと内板31(ガスケット取付け部(庫外側)31cb)と扉キャップ34との間に空間部58が構成されている。一方、真空断熱体36の側面部と、内板31の略平面部31aの内面とは、接着されている。 In the present embodiment, the vacuum heat insulator 36 is not bonded to the inner plate 31 from the center 53 of the gasket mounting portion 31c to the door cap 34. That is, the gasket mounting part (outer side) 31cb, which is a part located on the outer side of the gasket mounting part 31c, is not bonded to the vacuum heat insulator 36. A space 58 is formed between the storage case 36 b of the vacuum heat insulator 36, the inner plate 31 (gasket attachment portion (outside) 31 cb), and the door cap 34. On the other hand, the side surface portion of the vacuum heat insulator 36 and the inner surface of the substantially flat portion 31a of the inner plate 31 are bonded.
 なお、本実施の形態において、ガスケット取付け部31cの庫内側及びガスケット取付け部の庫外側とは、それぞれ、ガスケット取付け部31cのうちの、庫内に近い側及び庫外に近い側のことを指す。 In addition, in this Embodiment, the warehouse inner side of the gasket attachment part 31c and the warehouse outer side of a gasket attachment part refer to the side close | similar to the inside of a warehouse, and the side close | similar to the exterior of the gasket attachment part 31c, respectively. .
 [3.動作等]
 以上のように構成された冷蔵庫について、図4を用いて、その動作等について説明する。
[3. Operation]
About the refrigerator comprised as mentioned above, the operation | movement etc. are demonstrated using FIG.
 図4に示すように、冷凍室15の庫内の冷気は、扉15aの内板31に当たる。これにより、冷気と接する内板31の略平面部31aが冷やされる。ここで、本実施の形態では、冷蔵庫100の庫外に冷気が漏れないようにガスケット22によりシールされている。また、冷気シール部材54及びスロート部55によって、冷気がガスケット取付け部31cに流れ込むことが抑制される。これにより、庫内の冷気によってガスケット22が直接冷やされるのを抑制することができる。 As shown in FIG. 4, the cool air in the freezer compartment 15 hits the inner plate 31 of the door 15a. Thereby, the substantially plane part 31a of the inner plate 31 which contacts cold air is cooled. Here, in this Embodiment, it seals with the gasket 22 so that cold air may not leak out of the refrigerator 100 outside. Further, the cold air sealing member 54 and the throat portion 55 prevent the cold air from flowing into the gasket attachment portion 31c. Thereby, it can suppress that the gasket 22 is directly cooled by the cool air in a store | warehouse | chamber.
 内板31の略平面部31a及びスロート部55は、庫内の冷気によって冷却される。そして、内板31及び土手部31bからの熱伝導によって、ガスケット22が冷却される。このとき、ガスケット22が露点温度以下まで冷やされると、結露が発生する。従って、結露防止の観点からは、ガスケット取付け部31cの周辺部の熱伝導を抑制することが重要となる。 The substantially flat surface portion 31a and the throat portion 55 of the inner plate 31 are cooled by the cool air in the cabinet. The gasket 22 is cooled by heat conduction from the inner plate 31 and the bank portion 31b. At this time, if the gasket 22 is cooled to a dew point temperature or lower, dew condensation occurs. Therefore, from the viewpoint of preventing dew condensation, it is important to suppress heat conduction in the peripheral portion of the gasket mounting portion 31c.
 本実施の形態では、土手部31bに、熱伝導を抑制する凹み部31dが配置されている。これにより、内板31における熱伝導が抑制される。なお、凹み部31dは、前述したように、例えば、ガスケット取付け部31cより庫内側の位置に配置される。そして、凹み部31dの板厚は、略平面部31aの板厚の3分の1から2分の1である薄肉形状とするのが好ましい。 In the present embodiment, the bank 31b is provided with a recess 31d that suppresses heat conduction. Thereby, the heat conduction in the inner plate 31 is suppressed. In addition, as above-mentioned, the recessed part 31d is arrange | positioned in the position inside a warehouse from the gasket attachment part 31c, for example. And it is preferable that the plate | board thickness of the recessed part 31d is made into the thin-walled shape which is 1/3 to 1/2 of the plate | board thickness of the substantially plane part 31a.
 なお、凹み部31dの薄肉部は、冷凍室15の前面開口部の全周に対応して、内板31の全周に配置されてもよい。また、内板31の強度及び成形時の樹脂流動を考慮して、凹み部31dは、部分的に内板31の基本肉厚部と同じ板厚としてもよい。 In addition, the thin part of the recessed part 31d may be disposed on the entire periphery of the inner plate 31 corresponding to the entire periphery of the front opening of the freezer compartment 15. Further, in consideration of the strength of the inner plate 31 and the resin flow during molding, the recessed portion 31 d may partially have the same thickness as the basic thick portion of the inner plate 31.
 また、凹み部は、ガスケット取付け部31cの庫外側において、薄い肉厚部分が連続する熱伝導抑制部として構成されてもよい。例えば、本実施の形態では、ガスケット取付け部31cの庫外側のガスケット取付け部31cbに、凹み部として、薄肉形状部である凹み部31fが配置されている。図4に示す例では、断面積の小さいU字状の薄肉形状部である凹み部31fと、距離の長い薄肉形状部、すなわち広い範囲で薄肉化された凹み部31fと、が組み合わされている。これにより、熱伝導の抑制効果が高められている。 Further, the dent may be configured as a heat conduction suppressing portion in which a thin thick portion is continuous on the outer side of the gasket mounting portion 31c. For example, in the present embodiment, a recessed portion 31f that is a thin-walled portion is disposed as a recessed portion in the gasket mounting portion 31cb on the outer side of the gasket mounting portion 31c. In the example shown in FIG. 4, the recessed portion 31f, which is a U-shaped thin portion having a small cross-sectional area, is combined with a thin portion having a long distance, that is, a recessed portion 31f thinned in a wide range. . Thereby, the suppression effect of heat conduction is heightened.
 なお、凹み部31fは、内板31の成型性及び強度を考慮し、図4に示す金型の抜き方向57に凹む薄肉形状として構成されている。しかし、これに限られず、金型の抜き方向57以外の方向に薄肉形状の凹み部31fが配置されてもよい。 The recessed portion 31f is configured as a thin shape that is recessed in the mold drawing direction 57 shown in FIG. 4 in consideration of the moldability and strength of the inner plate 31. However, the present invention is not limited to this, and the thin-walled recessed portion 31 f may be arranged in a direction other than the mold drawing direction 57.
 なお、ガスケット取付け部31cの周辺部全体の肉厚が、内板31の他の部分より薄くなるように構成されてもよい。 Note that the thickness of the entire peripheral portion of the gasket attachment portion 31 c may be configured to be thinner than the other portions of the inner plate 31.
 なお、図4に示すように、スロート部55を構成する土手部31bに、貫通孔部31eが配置されても良い。そして、土手部31bに、凹み部31d及び貫通孔部31eの少なくともいずれかが配置される構成としてもよい。 In addition, as shown in FIG. 4, the through-hole part 31e may be arrange | positioned in the bank part 31b which comprises the throat part 55. As shown in FIG. And it is good also as a structure by which at least any one of the recessed part 31d and the through-hole part 31e is arrange | positioned at the bank part 31b.
 本実施の形態では、真空断熱体36における被覆材となる収納ケース36bは、内板31のガスケット取付け部31cより庫内側の部分と接着されている。このため、収納ケース36bは、庫内の冷気との熱交換により冷却される。すなわち、略平面部31aの内面に接触する収納ケース36bの部分が冷却される。そして、収納ケース36bの庫外側へ熱伝導することにより、ガスケット取付け部31cが冷却される。 In the present embodiment, the storage case 36b serving as a covering material in the vacuum heat insulating body 36 is bonded to the inner portion of the inner plate 31 from the gasket mounting portion 31c. For this reason, the storage case 36b is cooled by heat exchange with the cool air in the cabinet. That is, the portion of the storage case 36b that contacts the inner surface of the substantially flat portion 31a is cooled. And the gasket attachment part 31c is cooled by thermally conducting to the warehouse outer side of the storage case 36b.
 ここで、本実施の形態では、ガスケット取付け部31cの中心53より庫内側において、収納ケース36bと内板31(ガスケット取付け部31ca)とが接着されている。また、ガスケット取付け部31cの中心53より庫外側の収納ケース36bと内板31(ガスケット取付け部31cb)と扉キャップ34との間に空間部58が配置されている。これにより、収納ケース36bとガスケット取付け部31cとの間の熱交換を抑制することができる。 Here, in the present embodiment, the storage case 36b and the inner plate 31 (the gasket attachment portion 31ca) are bonded to each other inside the center 53 of the gasket attachment portion 31c. Further, a space 58 is disposed between the storage case 36b, the inner plate 31 (gasket mounting portion 31cb), and the door cap 34 on the outer side of the center 53 of the gasket mounting portion 31c. Thereby, the heat exchange between the storage case 36b and the gasket attachment part 31c can be suppressed.
 また、空間部58の一部を形成するガスケット取付け部31cの部分(ガスケット取付け部31cb)に、凹み部31fが配置されている。そして、ガスケット取付け部31cの庫外側を構成する部分の板厚を、庫内側を構成する部分の板厚よりも小さくして薄肉化することにより、内板31における熱伝導をさらに抑制することができる。 Further, the recessed portion 31f is disposed in a portion of the gasket mounting portion 31c (gasket mounting portion 31cb) that forms a part of the space portion 58. Further, by reducing the thickness of the portion constituting the outer side of the gasket mounting portion 31c to be smaller than the thickness of the portion constituting the inner side, the heat conduction in the inner plate 31 can be further suppressed. it can.
 なお、本実施の形態では、断熱扉筐体21の強度を確保する為に、ガスケット取付け部31cの中心53より庫内側の内板31(ガスケット取付け部31ca)と、収納ケース36bとが接着された構成としている。しかしながら、ガスケット取付け部31cの全体において、内板31と収納ケース36bとの間に空間部58が設けられてもよい。これにより、収納ケース36bとガスケット取付け部31cとの間の熱交換をさらに抑制することができる。 In the present embodiment, in order to ensure the strength of the heat insulating door casing 21, the inner plate 31 (gasket mounting portion 31ca) inside the warehouse from the center 53 of the gasket mounting portion 31c and the storage case 36b are bonded. It has a configuration. However, the space 58 may be provided between the inner plate 31 and the storage case 36b in the entire gasket mounting portion 31c. Thereby, the heat exchange between the storage case 36b and the gasket attachment portion 31c can be further suppressed.
 また、本実施の形態では、収納ケース36bの、扉キャップ34に対向する部分(側面部36ba)と、扉キャップ34とが互いに接触している。従って、扉キャップ34は、収納ケース36bからの熱伝導により冷却される。しかし、扉キャップ34の接する空気の温度は、ガスケット22及びガスケット取付け部31cの接する庫外の空気の温度よりも高い。従って、扉キャップ34は、露点温度まで低下することがない。このため、側面部36baと、扉キャップ34とを互いに接触させても、品質が低下することがない。 In the present embodiment, the portion (side surface portion 36ba) of the storage case 36b facing the door cap 34 and the door cap 34 are in contact with each other. Therefore, the door cap 34 is cooled by heat conduction from the storage case 36b. However, the temperature of the air in contact with the door cap 34 is higher than the temperature of the outside air in contact with the gasket 22 and the gasket mounting portion 31c. Therefore, the door cap 34 does not decrease to the dew point temperature. For this reason, even if it makes the side part 36ba and the door cap 34 contact each other, quality does not fall.
 また、本実施の形態では、真空断熱体36と内板31とを接合するために、真空断熱体36の側面部36baと扉キャップ34とが接着されている。なお、真空断熱体36は、庫内側の第1主面と略平面部31aの内面との間だけでなく、真空断熱体36の側面部36baと扉キャップ34とが接着されることによって、断熱扉筐体21のねじれ強度が増し、断熱扉筐体21の耐久性が向上する。また、真空断熱体36の側面部36baと扉キャップ34とは、強固に接合するために接触する面の全体において接着されてもよいし、接触する面の一部分において接着されてもよい。 Further, in the present embodiment, in order to join the vacuum heat insulator 36 and the inner plate 31, the side surface portion 36 ba of the vacuum heat insulator 36 and the door cap 34 are bonded. Note that the vacuum heat insulator 36 is insulated not only between the first main surface inside the warehouse and the inner surface of the substantially flat portion 31a but also by adhering the side surface portion 36ba of the vacuum heat insulator 36 and the door cap 34. The torsional strength of the door casing 21 is increased, and the durability of the heat insulating door casing 21 is improved. In addition, the side surface portion 36ba of the vacuum heat insulating body 36 and the door cap 34 may be bonded to each other in order to firmly join them, or may be bonded to a part of the contacting surfaces.
 (実施の形態2)
 図5は、実施の形態2における冷凍室の扉を右側から視た断面図である。図6は、図5に示す冷蔵庫の扉の断面図について、要部を拡大した図である。
(Embodiment 2)
FIG. 5 is a cross-sectional view of the freezer compartment door according to the second embodiment as viewed from the right side. FIG. 6 is an enlarged view of a main part of the cross-sectional view of the refrigerator door shown in FIG. 5.
 なお、実施の形態1と同一部分は説明を省略し、異なる部分を中心に説明する。 The description of the same parts as those in the first embodiment will be omitted, and different parts will be mainly described.
 本実施の形態の冷蔵庫は、扉の内部の断熱材の構成が、実施の形態1における断熱材の構成と異なる。 In the refrigerator of the present embodiment, the structure of the heat insulating material inside the door is different from the structure of the heat insulating material in the first embodiment.
 図5に示すように、冷凍室15の冷凍室扉15aを構成する断熱扉筐体21は、内板31及び外板32を有する。そして、内板31と外板32との間に、板状の真空断熱材61が配置されるとともに、硬質発泡ウレタンの発泡断熱材62が充填されている。 As shown in FIG. 5, the heat insulating door casing 21 constituting the freezer compartment door 15 a of the freezer compartment 15 has an inner plate 31 and an outer plate 32. A plate-like vacuum heat insulating material 61 is disposed between the inner plate 31 and the outer plate 32, and a foamed heat insulating material 62 of hard foamed urethane is filled therein.
 図6に示すように、実施の形態1と同様、内板31の土手部31bは、区画壁33と対面してスロート部55を形成する部分に、凹み部31dを有する。凹み部31dは、内板31の板厚よりも薄肉状に形成されている。凹み部31dは、より薄く形成された方が熱伝導を抑制できる。しかしながら、薄樹脂成型性及び内板の強度を考慮して、凹み部31dの板厚は、内板31の略平面部31aの板厚の3分の1から2分の1となるように構成されてもよい。また、凹み部31dは、1つであってもよいが、2箇所以上に配置されるとより効果的である。 As shown in FIG. 6, as in the first embodiment, the bank portion 31 b of the inner plate 31 has a recessed portion 31 d at a portion that faces the partition wall 33 and forms the throat portion 55. The recess 31 d is formed thinner than the thickness of the inner plate 31. The recessed part 31d can suppress heat conduction if it is formed thinner. However, in consideration of the thin resin moldability and the strength of the inner plate, the thickness of the recessed portion 31d is configured to be one third to one half of the plate thickness of the substantially flat portion 31a of the inner plate 31. May be. Moreover, although the number of the recessed parts 31d may be one, it will be more effective when arrange | positioned in two or more places.
 なお、凹み部31dは、内板31の庫内側の面及び庫外側の面のいずれに配置されてもよい。庫内側の面が凹む場合、すなわち、土手部31bの内部に凹み部31dが配置される場合は、発泡断熱材62が凹み部31dに入り込む。 In addition, the recessed part 31d may be arrange | positioned in any of the surface of the inner side of the inner plate 31, and the surface of the outer side. When the inside surface of the warehouse is recessed, that is, when the recessed portion 31d is disposed inside the bank portion 31b, the foam heat insulating material 62 enters the recessed portion 31d.
 なお、本実施の形態では、断熱扉筐体21の内部に発泡断熱材62が充填される場合について説明したが、発泡断熱材62が充填されずに真空断熱材61だけが配置される構成であってもよい。 In the present embodiment, the case where the inside of the heat insulating door casing 21 is filled with the foam heat insulating material 62 has been described. However, only the vacuum heat insulating material 61 is arranged without being filled with the foam heat insulating material 62. There may be.
 以上のように構成された冷蔵庫においては、実施の形態1と同様に、凹み部31dが配置されることで、熱伝導によってガスケット22が冷却されることが抑制される。これにより、ガスケット22が結露することを回避することができる。 In the refrigerator configured as described above, the cooling of the gasket 22 due to heat conduction is suppressed by disposing the recess 31d as in the first embodiment. Thereby, dew condensation on the gasket 22 can be avoided.
 なお、実施の形態1と同様に、内板31のガスケット取付け部31cにおいて、ガスケット22の庫外側に位置する部分(ガスケット取付け部31cb)に凹み部31fが配置されてもよい。そして、凹み部31fにおける板厚を、ガスケット取付け部31cの庫内側を構成する部分(ガスケット取付け部31ca)の板厚よりも小さくして薄肉化してもよい。これにより、ガスケット取付け部31cからのガスケット22への熱伝導をさらに抑制することができる。 In the same manner as in the first embodiment, in the gasket mounting portion 31c of the inner plate 31, a recessed portion 31f may be disposed in a portion (gasket mounting portion 31cb) located on the outer side of the gasket 22. And you may make the plate | board thickness in the recessed part 31f smaller than the plate | board thickness of the part (gasket attachment part 31ca) which comprises the warehouse inner side of the gasket attachment part 31c, and may make it thin. Thereby, the heat conduction from the gasket attachment portion 31c to the gasket 22 can be further suppressed.
 以上、本開示に係る冷蔵庫について、実施の形態を用いて説明したが、本開示は、これに限定されるものではない。すなわち、今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。つまり、本開示の範囲は上記した説明ではなくて請求の範囲によって示され、請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。 As mentioned above, although the refrigerator which concerns on this indication was demonstrated using embodiment, this indication is not limited to this. That is, the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. In other words, the scope of the present disclosure is indicated not by the above description but by the scope of claims, and is intended to include meanings equivalent to the scope of claims and all modifications within the scope.
 本開示に係る冷蔵庫の扉は、ガスケットの結露を回避して冷蔵庫の品質を向上することができる。従って、ガスケットを備えた断熱扉を有する、家庭用冷蔵庫、業務用冷蔵庫及び冷蔵冷凍設備等にも適用できる。 The refrigerator door according to the present disclosure can improve the quality of the refrigerator by avoiding condensation of the gasket. Therefore, the present invention can also be applied to household refrigerators, commercial refrigerators, refrigerated refrigeration facilities, and the like having a heat insulating door provided with a gasket.
 11 冷蔵庫本体
 12 冷蔵室
 12a 扉(冷蔵室扉)
 13 製氷室
 13a 扉(製氷室扉)
 14 切替室
 14a 扉(切替室扉)
 15 冷凍室
 15a 扉(冷凍室扉)
 16 野菜室
 16a 扉(野菜室扉)
 21 断熱扉筐体
 22 ガスケット
 23 フレーム
 31 内板
 31a 略平面部
 31b 土手部
 31c ガスケット取付け部
 31ca ガスケット取付け部(庫内側)
 31cb ガスケット取付け部(庫外側)
 31d 凹み部(第1凹み部)
 31e 貫通孔部
 31f 凹み部(第2凹み部)
 31g 凹み部
 32 外板
 33 区画壁
 34 扉キャップ
 36 真空断熱体
 36a 芯材
 36b 収納ケース
 36ba 側面部
 36c 封止部材
 54 冷気シール部材
 55 スロート部
 58 空間部
 61 真空断熱材
 62 発泡断熱材
 100 冷蔵庫
11 refrigerator main body 12 refrigerator compartment 12a door (refrigerator compartment door)
13 Ice making room 13a Door (ice making room door)
14 Switching room 14a Door (switching room door)
15 Freezer compartment 15a Door (freezer compartment door)
16 Vegetable room 16a Door (vegetable room door)
21 Insulating door housing 22 Gasket 23 Frame 31 Inner plate 31a Substantially flat portion 31b Bank portion 31c Gasket mounting portion 31ca Gasket mounting portion (inside of warehouse)
31cb gasket mounting (outside)
31d dent (first dent)
31e Through-hole part 31f Recessed part (2nd recessed part)
31g Indented portion 32 Outer plate 33 Partition wall 34 Door cap 36 Vacuum heat insulator 36a Core material 36b Storage case 36ba Side surface portion 36c Sealing member 54 Cold air seal member 55 Throat portion 58 Space portion 61 Vacuum heat insulating material 62 Foam heat insulating material 100 Refrigerator

Claims (6)

  1.  冷蔵庫本体と、
     前記冷蔵庫本体の前面開口部を開閉する扉と、を備え、
     前記扉は、
      内板と、
      外板と、
      前記内板と前記外板との間に配置された断熱材と、
      前記内板に取付けられ、前記前面開口部の周縁部に接触することで前記前面開口部を密閉するガスケットと、を有し、
     前記内板は、前記前面開口部に対向するとともに、庫内側に向かって突出する土手部を有し、
     前記内板の前記土手部に、第1凹み部及び貫通孔部の少なくともいずれかが配置された、
    冷蔵庫。
    The refrigerator body,
    A door that opens and closes the front opening of the refrigerator body,
    The door
    An inner plate,
    The outer plate,
    A heat insulating material disposed between the inner plate and the outer plate;
    A gasket attached to the inner plate and sealing the front opening by contacting a peripheral edge of the front opening;
    The inner plate has a bank portion that faces the front opening and protrudes toward the inner side of the warehouse,
    In the bank portion of the inner plate, at least one of the first dent portion and the through hole portion is disposed,
    refrigerator.
  2.  前記内板は、前記ガスケットを取付けるガスケット取付け部を有し、
     前記ガスケット取付け部の庫外側に位置する部分に、第2凹み部が配置された、
    請求項1に記載の冷蔵庫。
    The inner plate has a gasket mounting portion for mounting the gasket,
    A second dent is disposed in a portion located on the outer side of the gasket mounting portion,
    The refrigerator according to claim 1.
  3.  前記第2凹み部における前記内板の板厚は、前記ガスケット取付け部の庫内側の部分の板厚より小さい、
    請求項2に記載の冷蔵庫。
    The plate thickness of the inner plate in the second recessed portion is smaller than the plate thickness of the inner portion of the gasket mounting portion,
    The refrigerator according to claim 2.
  4.  前記断熱材は真空断熱体であり、
     前記ガスケット取付け部の前記庫内側に位置する部分と、前記真空断熱体とが接着され、
     前記ガスケット取付け部の前記庫外側に位置する部分と、前記真空断熱体との間に空間が配置された、
    請求項1に記載の冷蔵庫。
    The insulation is a vacuum insulation;
    The portion located on the inner side of the gasket mounting portion and the vacuum insulator are bonded,
    A space is disposed between the portion of the gasket mounting portion located outside the warehouse and the vacuum heat insulator,
    The refrigerator according to claim 1.
  5.  前記扉は、前記扉の厚み方向と平行な側面に扉キャップを有し、
     前記扉キャップと前記真空断熱体とが接着された、
    請求項4に記載の冷蔵庫。
    The door has a door cap on a side surface parallel to the thickness direction of the door,
    The door cap and the vacuum insulator are bonded,
    The refrigerator according to claim 4.
  6.  前記真空断熱体は、
      芯材と、前記芯材を収納する収納部と、前記収納部の開口部を封止する封止部材と、を有するとともに、
      前記収納部が前記内板に対向し、前記封止部材が前記外板に対向して前記外板に覆われるように配置された、
    請求項4又は請求項5に記載の冷蔵庫。
    The vacuum insulator is
    While having a core material, a storage part for storing the core material, and a sealing member for sealing the opening of the storage part,
    The storage portion is opposed to the inner plate, and the sealing member is disposed to face the outer plate and is covered by the outer plate.
    The refrigerator according to claim 4 or 5.
PCT/JP2019/016913 2018-04-26 2019-04-22 Refrigerator WO2019208457A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018084826 2018-04-26
JP2018-084826 2018-04-26

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1096584A (en) * 1996-09-20 1998-04-14 Mitsubishi Electric Corp Heat insulating mechanism for refrigerator
US20060080995A1 (en) * 2004-10-20 2006-04-20 Samsung Electronics Co., Ltd. Refrigerator with device for preventing chilled air from leaking
JP2011080732A (en) * 2009-10-09 2011-04-21 Toshiba Corp Refrigerator
US20130014533A1 (en) * 2011-07-14 2013-01-17 Hojin Choi Refrigerator
JP2013195009A (en) * 2012-03-21 2013-09-30 Toshiba Corp Refrigerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1096584A (en) * 1996-09-20 1998-04-14 Mitsubishi Electric Corp Heat insulating mechanism for refrigerator
US20060080995A1 (en) * 2004-10-20 2006-04-20 Samsung Electronics Co., Ltd. Refrigerator with device for preventing chilled air from leaking
JP2011080732A (en) * 2009-10-09 2011-04-21 Toshiba Corp Refrigerator
US20130014533A1 (en) * 2011-07-14 2013-01-17 Hojin Choi Refrigerator
JP2013195009A (en) * 2012-03-21 2013-09-30 Toshiba Corp Refrigerator

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