WO2013084844A1 - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
WO2013084844A1
WO2013084844A1 PCT/JP2012/081282 JP2012081282W WO2013084844A1 WO 2013084844 A1 WO2013084844 A1 WO 2013084844A1 JP 2012081282 W JP2012081282 W JP 2012081282W WO 2013084844 A1 WO2013084844 A1 WO 2013084844A1
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WO
WIPO (PCT)
Prior art keywords
door
heat insulating
refrigerator
insulating material
box
Prior art date
Application number
PCT/JP2012/081282
Other languages
French (fr)
Japanese (ja)
Inventor
候巳 阿部
佐伯 友康
石橋 郁夫
及川 誠
隆明 吉田
孝司 駒場
昌則 安部
Original Assignee
株式会社 東芝
東芝コンシューマエレクトロニクス・ホールディングス株式会社
東芝ホームアプライアンス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 東芝, 東芝コンシューマエレクトロニクス・ホールディングス株式会社, 東芝ホームアプライアンス株式会社 filed Critical 株式会社 東芝
Priority to EP12854870.8A priority Critical patent/EP2789947B1/en
Priority to CN201280059905.5A priority patent/CN104114965B/en
Publication of WO2013084844A1 publication Critical patent/WO2013084844A1/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
    • F25D23/028Details
    • 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
    • F25D2201/00Insulation
    • F25D2201/10Insulation with respect to heat
    • F25D2201/14Insulation with respect to heat using subatmospheric pressure

Definitions

  • Embodiment of this invention is related with a refrigerator.
  • the refrigerator is filled with a vacuum heat insulating material between the outer box and the inner box constituting the heat insulating box which is the main body of the refrigerator in order to improve the heat insulating performance and save energy. Moreover, the refrigerator is also filled with the vacuum heat insulating material between the inner plate and the outer plate constituting the door that opens and closes the front opening of the heat insulating box.
  • An object of the present invention is to provide a refrigerator capable of improving the heat insulation performance in the vicinity of the end of the door that opens and closes the front opening of the heat insulation box.
  • a refrigerator main body configured as a heat insulating box with a vacuum heat insulating material sandwiched between an inner box and an outer box, and a door that opens and closes a front opening of the heat insulating box,
  • the door has a vacuum heat insulating material sandwiched between an inner plate and an outer plate, and the end portion of the vacuum heat insulating material of the door located on the side wall side of the heat insulating box is more than the inner plate surface of the side wall.
  • a refrigerator characterized by extending outward.
  • FIG. 1 is a perspective view showing the overall structure of a refrigerator according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the refrigerator shown in FIG.
  • FIG. 3 is an enlarged cross-sectional view showing in detail the internal structure of a corner portion surrounded by a dotted circle A in the cross-sectional view of the refrigerator shown in FIG.
  • FIG. 4 is a diagram showing the temperature characteristics of the corners of the first freezer compartment door facing the front end portion of the left side plate-like portion in an embodiment of the present invention, overlapping the corner structure.
  • FIG. 5 is a diagram showing the temperature characteristics of the corners of the first freezer compartment door facing the front end of the left plate-like portion in the conventional refrigerator, overlapping the corner structure.
  • FIG. 1 is a perspective view showing the overall structure of a refrigerator according to an embodiment of the present invention.
  • the refrigerator 1 includes a heat insulating box 3 configured by sandwiching a vacuum heat insulating material between an inner box and an outer box.
  • the heat insulating box 3 includes an upper surface plate-like portion 5 constituting an upper surface wall serving as a ceiling, a bottom surface plate-like portion 7 constituting a bottom wall, a left plate-like portion 9 constituting a left side wall, and a right side plate shape constituting a right side wall. It consists of the part 11 and the back plate-shaped part 13 which comprises a back wall.
  • the right side plate portion 11, the back plate portion 13, and the bottom plate portion 7 are hidden behind.
  • the upper surface plate-like portion 5, the bottom surface plate-like portion 7, the left-side plate-like portion 9, the right-side plate-like portion 11 and the back-side plate-like portion 13 are collectively referred to as a plate-like portion.
  • a double-fold refrigeration is provided on the front opening side of the heat insulating box 3 surrounded by the top plate portion 5, the bottom plate portion 7, the left plate portion 9, the right plate portion 11, and the back plate portion 13, a double-fold refrigeration is provided.
  • Room doors 15, 15, drawer-type vegetable room door 17, drawer-type ice making room door 19, drawer-type first freezer compartment door 21, and drawer-type second freezer compartment door 23 are attached.
  • the second freezer compartment door 23 is provided next to the ice making compartment door 19.
  • the inside of the heat insulation box 3 closed by the refrigerator compartment doors 15 and 15, the vegetable compartment door 17, the ice making compartment door 19, the first freezer compartment door 21 and the second freezer compartment door 23, respectively, A vegetable room, an ice making room, a first freezer room and a second freezer room are provided.
  • FIG. 2 is a cross-sectional view of the refrigerator 1 shown in FIG. Specifically, for example, it is a cross-sectional view in which the middle of the first freezer compartment door 21 of the refrigerator 1 of FIG. 1 is cut horizontally.
  • the heat insulating box 3 of the refrigerator 1 is configured in a substantially U shape surrounded by a left side plate-like portion 9, a right side plate-like portion 11, and a back plate-like portion 13.
  • a second freezer compartment door 21 is attached to the front opening of the heat insulation box 3.
  • FIG. 3 is a cross-sectional view of the refrigerator 1 shown in FIG. 2, where the front end portion of the left plate-like portion 9 and the left end portion of the second freezer compartment door 21, which are portions surrounded by a dotted circle A, It is an expanded sectional view showing in detail the internal structure of the corner which contacts.
  • the first freezer compartment door 21 has a vacuum heat insulating material 35 sandwiched between a door outer plate 31 and a door inner plate 33.
  • an extra length portion of a film such as a laminate film covering the periphery of the core material is generated in the vacuum heat insulating material 35 for the reason of manufacturing.
  • the end of the vacuum heat insulating material 35 is formed in a substantially square shape because the extra length portion of the film is bent while being formed as an ear portion, and the ear portion is closely attached to the vacuum heat insulating material 35. Yes.
  • the ear part is bent to the door inner plate 33 side from the position to be the end part of the vacuum heat insulating material 35, so that the ear part is the vacuum heat insulating material 35. It is in close contact with. That is, as shown in FIG.
  • the film seals between the vacuum heat insulating material 35 and the gasket portion 41, so that the close contact surface portion of the vacuum heat insulating material 35 is formed. It is reinforced. Note that the folded portion is firmly sealed by an internal adhesive.
  • the left side plate-like portion 9 constituting the side wall portion of the refrigerator 1 also has a vacuum heat insulating material 95 sandwiched between the left outer plate 91 and the left inner plate 93.
  • a gasket 41 is attached to the inside of the first freezer compartment door 21 in the vicinity of the left end.
  • a throat portion 43 as a protruding portion that is bent obliquely and protrudes greatly toward the inside of the first freezer compartment.
  • the throat portion 43 is filled with a foam heat insulating material 37. Since the throat portion 43 functions as a cold air leakage prevention portion that blocks a cold air escape, the refrigeration efficiency of the refrigerator 1 is further increased.
  • a magnet 45 is attached to an end contacting the front end of the left plate-like portion 9.
  • the vicinity of the left end portion of the first freezer compartment door 21 is magnetically attached to the front end portion of the left plate portion 9 by the magnet 45.
  • An air cushion portion 47 is provided inside the magnet 45. The air cushion part 47 buffers the impact on the left plate-like part 9 when the first freezer compartment door 21 is closed.
  • a gasket mounting portion 49 is provided between the air cushion portion 47 and the door inner plate 33 of the first freezer compartment door 21.
  • An arrowhead-shaped insertion part 51 extending from the air cushion part 47 is inserted into the gasket attachment part 49.
  • the gasket mounting portion 49 may be provided integrally with the door inner plate 33.
  • the gasket attachment portion 49 may be formed as an extension of the door inner plate 33.
  • Fin portions 53 and 55 are attached to both sides of the gasket attachment portion 49 between the gasket attachment portion 49 and the air cushion portion 47.
  • the fin parts 53 and 55 prevent the leakage of cold air from the first freezer compartment, and suppress the condensation inside the first freezer compartment door 21 due to the leaked cold air.
  • surroundings of the vacuum heat insulating material 35 of the 1st freezer compartment door 21 is return
  • edge part is the gasket attachment part 49. Is located on the inner side (the right end portion side of the first freezer compartment door 21) than the center position.
  • FIG. 4 and 5 show the temperature characteristics of the corner of the first freezer compartment door facing the front end of the left side plate-like portion in the present embodiment and the conventional refrigerator, overlapping the structure of the corner.
  • the symbol a is a temperature of 22.6 ° C.
  • the symbol b is a temperature of 16.8 ° C.
  • the symbol c is a temperature of 11.0 ° C.
  • the symbol d is a temperature of 5.2. ° C
  • symbol e indicates a temperature of -0.6 ° C
  • symbol f indicates a temperature of -6.4 ° C.
  • the same temperature zone shown by the line which connected the some point which shows these same temperature is shown as a graph.
  • the temperature characteristics of a conventional refrigerator will be described with reference to FIG.
  • the vacuum heat insulating material 101 of the first freezer compartment door 21 does not extend to the vicinity of the left end portion of the first freezer compartment door 21, and the throat portion in front of the left end portion. It ends with. Therefore, in the temperature distribution of the conventional refrigerator, the condensation temperature zone between the temperature 22.6 ° C indicated by the symbol a and the temperature 16.8 ° C indicated by the symbol b is present in the conventional refrigerator. Since it occurs at the corner that does not, dew condensation may occur at this corner.
  • the temperature characteristics of the refrigerator of this embodiment will be described with reference to FIG.
  • the vacuum heat insulating material 35 of the first freezer compartment door 21 when viewed from the door outer plate 31 in FIG.
  • the material 95 extends to the vicinity of the left end portion of the first freezer compartment door 21 so as to cover the front end portion extending toward the first freezer compartment door 21. Therefore, in the temperature distribution of the refrigerator of the present embodiment, the dew condensation temperature zone between the temperature 22.6 ° C. indicated by the symbol a and the temperature 16.8 ° C.
  • the dew condensation temperature zone of this corner is located in the vacuum heat insulating material 35. That is, since it is confined in the vacuum heat insulating material 35, there is no possibility that condensation occurs near the left end of the first freezer compartment door 21.
  • the vacuum heat insulating material 35 of the first freezer compartment door 21 is sandwiched between the door outer plate 31 and the door inner plate 33, and the first freezer compartment. It extends to the vicinity of the left end of the door 21.
  • the vacuum heat insulating material 35 covers the front end portion extending toward the first freezer compartment door 21 of the vacuum heat insulating material 95 in the left plate-like portion 9. Since it extends beyond the tip, the heat insulation performance in the vicinity of the left end of the first freezer compartment door 21 is improved, and the dew condensation temperature zone is confined in the vacuum heat insulating material 35, so that the first freezer compartment It is also possible to prevent condensation from occurring near the left end of the door 21.
  • the front end portion covers the front end portion extending toward the first freezer compartment door 21 of the vacuum heat insulating material 95 in the left side plate-shaped portion 9.
  • the left end of the vacuum heat insulating material 35 of the first freezer compartment door 21 is, for example, 3 mm or more outside the center position of the gasket mounting portion 49 of the gasket 41 (the first freezing chamber door 21 extends beyond the first freezing chamber door 21). It extends to the left end side of the chamber door 21 ”. Thereby, in the vicinity of the left end portion of the first freezer compartment door 21, the heat insulation performance can be improved and the occurrence of condensation can be prevented.
  • the foam heat insulating material 37 (EPS etc.) exists in the inside of the throat part 43 which functions as a cold air leak prevention part, it is outside the foam heat insulating material 37 of the throat part 43 (of the first freezer compartment door 21).
  • the vacuum heat insulating material 35 is insulated by extending the left end portion of the first freezer compartment door 21 to the outside (the left end portion side of the first freezer compartment door 21) from the center position of the gasket mounting portion 49.
  • the coverage of the vacuum heat insulating material with respect to the size of the front view which is the size seen from the front of the box 3 can be increased. Therefore, the heat insulation performance of the corner portion of the first freezer compartment door 21 facing the front end portion of the left plate-like portion 9 can be improved. As a result, the heat insulation performance of the refrigerator 1 can be improved and condensation can be prevented.
  • the structure of the corner portion of the first freezer compartment door 21 that faces the front end portion of the left plate portion 9 has been described, but the refrigerator door 15 that faces the front end portion of the left plate portion 9.
  • the refrigerator door 15 that faces the front end portion of the left plate portion 9.
  • Vegetable room door 17, Ice making room door 19 Corner part of second freezing room door 23
  • Refrigerating room doors 15 and 15, Vegetable room door 17, Ice making room facing the front end of right plate-like part 11 The corners of the door 19 and the second freezer compartment door 23 have the same structure.
  • the top plate portion 5, the bottom plate portion 7, the left plate portion 9, the right plate portion 11, and the back plate portion 13 are provided separately.
  • the heat insulation box 3 of the refrigerator 1 is comprised by connecting a plate-shaped part. That is, a plurality of outer box plate members constituting the outer box of the heat insulating box 3 are separately provided.
  • a plurality of outer box plate members may be integrally provided to form an outer box like a single plate.
  • a plurality of inner box plate members constituting the inner box of the heat insulating box 3 are separately provided.
  • the present embodiment is not limited to this, and a plurality of inner box plate members may be integrally provided to form an inner box like a single plate.

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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

A refrigerator comprises a refrigerator main body and a door. The refrigerator main body is configured as a thermally insulated box in which a vacuum-insulating material is placed between an inner box and an outer box. The door opens and closes a front opening of the thermally insulated box. The door has the vacuum-insulating material placed between an inner board and an outer board. An end part of the vacuum-insulating material of the door, which is positioned in a side wall of the thermally insulated box, extends farther outward than an inner board surface of the side wall.

Description

冷蔵庫refrigerator
 本発明の実施形態は、冷蔵庫に関する。 Embodiment of this invention is related with a refrigerator.
 冷蔵庫は、その断熱性能の向上および省エネルギー化を図るために、冷蔵庫本体となる断熱箱体を構成する外箱と内箱の間に真空断熱材を充填している。また、冷蔵庫は、断熱箱体の前面開口部を開閉する扉を構成する内板と外板との間にも真空断熱材を充填している。 The refrigerator is filled with a vacuum heat insulating material between the outer box and the inner box constituting the heat insulating box which is the main body of the refrigerator in order to improve the heat insulating performance and save energy. Moreover, the refrigerator is also filled with the vacuum heat insulating material between the inner plate and the outer plate constituting the door that opens and closes the front opening of the heat insulating box.
 しかしながら、断熱箱体の側壁部の扉に近い前端部に対応する扉の端部近傍には、ガスケットなどが配置されているため、従来の冷蔵庫では真空断熱材が配設されていない。それゆえ、扉の端部近傍の断熱性が損なわれ、冷蔵庫全体としての断熱効果が低下するとともに、扉の端部近傍に結露が発生するという問題があった。 However, since a gasket or the like is disposed in the vicinity of the end of the door corresponding to the front end near the door on the side wall of the heat insulating box, no vacuum heat insulating material is disposed in the conventional refrigerator. Therefore, there is a problem that the heat insulating property in the vicinity of the end portion of the door is impaired, the heat insulating effect as the whole refrigerator is lowered, and condensation occurs in the vicinity of the end portion of the door.
 本発明は、断熱箱体の前面開口部を開閉する扉の端部近傍の断熱性能を向上し得る冷蔵庫を提供することを目的とする。 An object of the present invention is to provide a refrigerator capable of improving the heat insulation performance in the vicinity of the end of the door that opens and closes the front opening of the heat insulation box.
 実施形態によれば、内箱と外箱との間に真空断熱材を挟んで断熱箱体として構成される冷蔵庫本体と、前記断熱箱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の間に挟まれた真空断熱材を有し、前記断熱箱体の側壁側に位置する前記扉の真空断熱材の端部は、前記側壁の内板面よりも外側に延出していることを特徴とする冷蔵庫を提供する。 According to the embodiment, a refrigerator main body configured as a heat insulating box with a vacuum heat insulating material sandwiched between an inner box and an outer box, and a door that opens and closes a front opening of the heat insulating box, The door has a vacuum heat insulating material sandwiched between an inner plate and an outer plate, and the end portion of the vacuum heat insulating material of the door located on the side wall side of the heat insulating box is more than the inner plate surface of the side wall. Provided is a refrigerator characterized by extending outward.
図1は、本発明の一実施形態に係わる冷蔵庫の全体構造を示す斜視図である。FIG. 1 is a perspective view showing the overall structure of a refrigerator according to an embodiment of the present invention. 図2は、図1に示した冷蔵庫の横断面図である。FIG. 2 is a cross-sectional view of the refrigerator shown in FIG. 図3は、図2に示した冷蔵庫の横断面図において点線の丸印Aで囲まれた部分の角部の内部構造詳細に示す拡大断面図である。FIG. 3 is an enlarged cross-sectional view showing in detail the internal structure of a corner portion surrounded by a dotted circle A in the cross-sectional view of the refrigerator shown in FIG. 図4は、本発明の一実施形態における、左側板状部の前端部に対向する第1の冷凍室扉の角部の温度特性を角部の構造の上に重複して示す図である。FIG. 4 is a diagram showing the temperature characteristics of the corners of the first freezer compartment door facing the front end portion of the left side plate-like portion in an embodiment of the present invention, overlapping the corner structure. 図5は、従来の冷蔵庫における、左側板状部の前端部に対向する第1の冷凍室扉の角部の温度特性を角部の構造の上に重複して示す図である。FIG. 5 is a diagram showing the temperature characteristics of the corners of the first freezer compartment door facing the front end of the left plate-like portion in the conventional refrigerator, overlapping the corner structure.
 以下、図面を用いて、本発明を実施するための形態(以下、実施形態と称する)を説明する。 Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.
 図1は、本発明の一実施形態に係わる冷蔵庫の全体構造を示す斜視図である。図1に示すように、冷蔵庫1は、内箱と外箱との間に真空断熱材を挟んで構成される断熱箱体3を備えている。断熱箱体3は、天井となる上面壁を構成する上面板状部5、底面壁を構成する底面板状部7、左側壁を構成する左側板状部9、右側壁を構成する右側板状部11、および背面壁を構成する背面板状部13で構成されている。 FIG. 1 is a perspective view showing the overall structure of a refrigerator according to an embodiment of the present invention. As shown in FIG. 1, the refrigerator 1 includes a heat insulating box 3 configured by sandwiching a vacuum heat insulating material between an inner box and an outer box. The heat insulating box 3 includes an upper surface plate-like portion 5 constituting an upper surface wall serving as a ceiling, a bottom surface plate-like portion 7 constituting a bottom wall, a left plate-like portion 9 constituting a left side wall, and a right side plate shape constituting a right side wall. It consists of the part 11 and the back plate-shaped part 13 which comprises a back wall.
 なお、図1においては、右側板状部11、背面板状部13、および底面板状部7は、背後に隠れている。また、上面板状部5、底面板状部7、左側板状部9、右側板状部11および背面板状部13を総称する場合には、単に板状部と称することにする。 In FIG. 1, the right side plate portion 11, the back plate portion 13, and the bottom plate portion 7 are hidden behind. In addition, when the upper surface plate-like portion 5, the bottom surface plate-like portion 7, the left-side plate-like portion 9, the right-side plate-like portion 11 and the back-side plate-like portion 13 are collectively referred to as a plate-like portion.
 また、上面板状部5、底面板状部7、左側板状部9、右側板状部11、背面板状部13で囲まれた断熱箱体3の前面開口側には、観音開き式の冷蔵室扉15,15、引き出し式の野菜室扉17、引き出し式の製氷室扉19、引き出し式の第1の冷凍室扉21、および引き出し式の第2の冷凍室扉23が取り付けられている。なお、第2の冷凍室扉23は、製氷室扉19の横に並んで設けられている。なお、冷蔵室扉15,15、野菜室扉17、製氷室扉19、第1の冷凍室扉21および第2の冷凍室扉23により閉じられる断熱箱体3の内部には、それぞれ冷蔵室、野菜室、製氷室、第1の冷凍室および第2の冷凍室が設けられている。 In addition, on the front opening side of the heat insulating box 3 surrounded by the top plate portion 5, the bottom plate portion 7, the left plate portion 9, the right plate portion 11, and the back plate portion 13, a double-fold refrigeration is provided. Room doors 15, 15, drawer-type vegetable room door 17, drawer-type ice making room door 19, drawer-type first freezer compartment door 21, and drawer-type second freezer compartment door 23 are attached. The second freezer compartment door 23 is provided next to the ice making compartment door 19. The inside of the heat insulation box 3 closed by the refrigerator compartment doors 15 and 15, the vegetable compartment door 17, the ice making compartment door 19, the first freezer compartment door 21 and the second freezer compartment door 23, respectively, A vegetable room, an ice making room, a first freezer room and a second freezer room are provided.
 図2は、図1に示した冷蔵庫1の横断面図である。具体的には、例えば、図1の冷蔵庫1の第1の冷凍室扉21の中程を水平に切断した横断面図である。図2に示すように、冷蔵庫1の断熱箱体3は、左側板状部9、右側板状部11および背面板状部13で囲まれた略U字形に構成されている。断熱箱体3の前面開口部に第2の冷凍室扉21が取り付けられている。 FIG. 2 is a cross-sectional view of the refrigerator 1 shown in FIG. Specifically, for example, it is a cross-sectional view in which the middle of the first freezer compartment door 21 of the refrigerator 1 of FIG. 1 is cut horizontally. As shown in FIG. 2, the heat insulating box 3 of the refrigerator 1 is configured in a substantially U shape surrounded by a left side plate-like portion 9, a right side plate-like portion 11, and a back plate-like portion 13. A second freezer compartment door 21 is attached to the front opening of the heat insulation box 3.
 図3は、図2に示した冷蔵庫1の横断面図において、点線の丸印Aで囲まれた部分である左側板状部9の前端部と第2の冷凍室扉21の左端部とが当接する角部の内部構造を詳細に示す拡大断面図である。図3に示すように、第1の冷凍室扉21は、扉外板31と扉内板33との間に挟まれた真空断熱材35を有している。 FIG. 3 is a cross-sectional view of the refrigerator 1 shown in FIG. 2, where the front end portion of the left plate-like portion 9 and the left end portion of the second freezer compartment door 21, which are portions surrounded by a dotted circle A, It is an expanded sectional view showing in detail the internal structure of the corner which contacts. As shown in FIG. 3, the first freezer compartment door 21 has a vacuum heat insulating material 35 sandwiched between a door outer plate 31 and a door inner plate 33.
 通常、真空断熱材35には、その製造上の理由から芯材の周囲を覆うラミネートフィルム等のフィルムの余長部分が生じる。図3に示すように、フィルムの余長部分を耳部として成形しながら折り曲げて、耳部を真空断熱材35に密着させているため、真空断熱材35の端部はほぼ方形に形成されている。具体的には、フィルムの余長部分を耳部として成形しながら、真空断熱材35の端部となるべき位置から扉内板33側に耳部を折り曲げることにより、耳部は真空断熱材35に密着している。すなわち、図3に示すように、耳部がガスケット部41の側面に密着することで、フィルムが真空断熱材35とガスケット部41との間を密閉して、真空断熱材35の密着面部分を補強している。なお、この折り返し部分は、内部の接着剤により、密封状態が強固に保たれている。 Usually, an extra length portion of a film such as a laminate film covering the periphery of the core material is generated in the vacuum heat insulating material 35 for the reason of manufacturing. As shown in FIG. 3, the end of the vacuum heat insulating material 35 is formed in a substantially square shape because the extra length portion of the film is bent while being formed as an ear portion, and the ear portion is closely attached to the vacuum heat insulating material 35. Yes. Specifically, while forming the surplus part of the film as an ear part, the ear part is bent to the door inner plate 33 side from the position to be the end part of the vacuum heat insulating material 35, so that the ear part is the vacuum heat insulating material 35. It is in close contact with. That is, as shown in FIG. 3, when the ear portion is in close contact with the side surface of the gasket portion 41, the film seals between the vacuum heat insulating material 35 and the gasket portion 41, so that the close contact surface portion of the vacuum heat insulating material 35 is formed. It is reinforced. Note that the folded portion is firmly sealed by an internal adhesive.
 同様に、冷蔵庫1の側壁部を構成する左側板状部9も左側外板91と左側内板93との間に挟まれた真空断熱材95を有している。 Similarly, the left side plate-like portion 9 constituting the side wall portion of the refrigerator 1 also has a vacuum heat insulating material 95 sandwiched between the left outer plate 91 and the left inner plate 93.
 第1の冷凍室扉21の内側には、左端部近傍にガスケット41が取り付けられている。ガスケット41の手前、すなわち、図3におけるガスケット41の右側には、第1の冷凍室の内部に向かうように斜めに折曲して大きく突出する突出部としてのスロート部43が設けられる。スロート部43の内部には、発泡断熱材37が充填される。スロート部43は、冷気の逃げ場を塞ぐ冷気漏れ防止部として機能するので、さらに、冷蔵庫1の冷凍効率を上げている。 A gasket 41 is attached to the inside of the first freezer compartment door 21 in the vicinity of the left end. In front of the gasket 41, that is, on the right side of the gasket 41 in FIG. 3, there is provided a throat portion 43 as a protruding portion that is bent obliquely and protrudes greatly toward the inside of the first freezer compartment. The throat portion 43 is filled with a foam heat insulating material 37. Since the throat portion 43 functions as a cold air leakage prevention portion that blocks a cold air escape, the refrigeration efficiency of the refrigerator 1 is further increased.
 ガスケット41には、左側板状部9の前端部に当接する端部にマグネット45が取り付けられている。マグネット45により第1の冷凍室扉21の左端部近傍は左側板状部9の前端部に磁着する。マグネット45の内側には、エアクッション部47が設けられている。エアクッション部47は、第1の冷凍室扉21を閉じた時の左側板状部9に対する衝撃を緩衝する。 In the gasket 41, a magnet 45 is attached to an end contacting the front end of the left plate-like portion 9. The vicinity of the left end portion of the first freezer compartment door 21 is magnetically attached to the front end portion of the left plate portion 9 by the magnet 45. An air cushion portion 47 is provided inside the magnet 45. The air cushion part 47 buffers the impact on the left plate-like part 9 when the first freezer compartment door 21 is closed.
 エアクッション部47と第1の冷凍室扉21の扉内板33との間には、ガスケット取付部49が設けられている。ガスケット取付部49の内部に、エアクッション部47から伸び出ている矢尻状の差込部51が差し込まれている。なお、ガスケット取付部49は、扉内板33と一体に設けられてもよい。例えば、ガスケット取付部49は、扉内板33の延長として形成されても良い。 A gasket mounting portion 49 is provided between the air cushion portion 47 and the door inner plate 33 of the first freezer compartment door 21. An arrowhead-shaped insertion part 51 extending from the air cushion part 47 is inserted into the gasket attachment part 49. The gasket mounting portion 49 may be provided integrally with the door inner plate 33. For example, the gasket attachment portion 49 may be formed as an extension of the door inner plate 33.
 ガスケット取付部49とエアクッション部47との間であって、ガスケット取付部49の両側には、ひれ部53、55が取り付けられている。ひれ部53、55は、第1の冷凍室からの冷気の漏洩を防止して、漏洩冷気による第1の冷凍室扉21の内部の結露を抑制している。 Fin portions 53 and 55 are attached to both sides of the gasket attachment portion 49 between the gasket attachment portion 49 and the air cushion portion 47. The fin parts 53 and 55 prevent the leakage of cold air from the first freezer compartment, and suppress the condensation inside the first freezer compartment door 21 due to the leaked cold air.
 なお、第1の冷凍室扉21の真空断熱材35の周囲に形成される耳部は、真空断熱材35の内側に折り返されて、かつ、折り返された耳部の先端は、ガスケット取付部49の中心位置よりも内側(第1冷凍室扉21の右端部側)にある。 In addition, the ear | edge part formed in the circumference | surroundings of the vacuum heat insulating material 35 of the 1st freezer compartment door 21 is return | folded inside the vacuum heat insulating material 35, and the front-end | tip of the turned back ear | edge part is the gasket attachment part 49. Is located on the inner side (the right end portion side of the first freezer compartment door 21) than the center position.
 図4および図5は、本実施形態および従来の冷蔵庫における、左側板状部の前端部に対向する第1の冷凍室扉の角部の温度特性を角部の構造の上に重複して示す図である。なお、図4および図5において、符号aは、温度22.6゜C、符号bは、温度16.8゜C、符号cは、温度11.0゜C、符号dは、温度5.2゜C、符号eは、温度―0.6゜C、符号fは、温度―6.4゜Cを示す点である。図4および図5では、これらと同じ温度を示す複数の点を連結した線で示す同じ温度帯がグラフとして示されている。 4 and 5 show the temperature characteristics of the corner of the first freezer compartment door facing the front end of the left side plate-like portion in the present embodiment and the conventional refrigerator, overlapping the structure of the corner. FIG. 4 and 5, the symbol a is a temperature of 22.6 ° C., the symbol b is a temperature of 16.8 ° C., the symbol c is a temperature of 11.0 ° C., and the symbol d is a temperature of 5.2. ° C, symbol e indicates a temperature of -0.6 ° C, and symbol f indicates a temperature of -6.4 ° C. In FIG. 4 and FIG. 5, the same temperature zone shown by the line which connected the some point which shows these same temperature is shown as a graph.
 最初に、図5を参照して、従来の冷蔵庫の温度特性について説明する。図5に示すように、従来の冷蔵庫では、第1の冷凍室扉21の真空断熱材101は、第1の冷凍室扉21の左端部近傍まで延出せずに、左端部の手前のスロート部で終端している。従って、従来の冷蔵庫の温度分布において、符号aで示す温度22.6゜Cと符号bで示す温度16.8゜Cとの間の結露温度帯は、従来の冷蔵庫では、真空断熱材が存在しない角部に発生するので、この角部に結露が発生する可能性があった。 First, the temperature characteristics of a conventional refrigerator will be described with reference to FIG. As shown in FIG. 5, in the conventional refrigerator, the vacuum heat insulating material 101 of the first freezer compartment door 21 does not extend to the vicinity of the left end portion of the first freezer compartment door 21, and the throat portion in front of the left end portion. It ends with. Therefore, in the temperature distribution of the conventional refrigerator, the condensation temperature zone between the temperature 22.6 ° C indicated by the symbol a and the temperature 16.8 ° C indicated by the symbol b is present in the conventional refrigerator. Since it occurs at the corner that does not, dew condensation may occur at this corner.
 次に、図4を参照して、本実施形態の冷蔵庫の温度特性について説明する。図4に示すように、本実施形態の冷蔵庫では、第1の冷凍室扉21の真空断熱材35は、図3において扉外板31から見たときに、左側板状部9内の真空断熱材95の第1の冷凍室扉21に向かって延出する先端部を覆うように、第1の冷凍室扉21の左端部近傍まで延出している。従って、本実施形態の冷蔵庫の温度分布において、符号aで示す温度22.6゜Cと符号bで示す温度16.8゜Cとの間の結露温度帯は、本実施形態の冷蔵庫では、第1の冷凍室扉21の真空断熱材35が存在する角部に発生するので、この角部の結露温度帯は、真空断熱材35内に位置している。すなわち、真空断熱材35内に閉じ込められているので、第1の冷凍室扉21の左端部近傍に結露が発生する可能性がない。 Next, the temperature characteristics of the refrigerator of this embodiment will be described with reference to FIG. As shown in FIG. 4, in the refrigerator of the present embodiment, the vacuum heat insulating material 35 of the first freezer compartment door 21, when viewed from the door outer plate 31 in FIG. The material 95 extends to the vicinity of the left end portion of the first freezer compartment door 21 so as to cover the front end portion extending toward the first freezer compartment door 21. Therefore, in the temperature distribution of the refrigerator of the present embodiment, the dew condensation temperature zone between the temperature 22.6 ° C. indicated by the symbol a and the temperature 16.8 ° C. indicated by the symbol b is Since it occurs at the corner where the vacuum heat insulating material 35 of the one freezer compartment door 21 exists, the dew condensation temperature zone of this corner is located in the vacuum heat insulating material 35. That is, since it is confined in the vacuum heat insulating material 35, there is no possibility that condensation occurs near the left end of the first freezer compartment door 21.
 以上のように構成される本実施形態の冷蔵庫において、第1の冷凍室扉21の真空断熱材35は、扉外板31と扉内板33との間に挟まれて、第1の冷凍室扉21の左端部近傍まで延出している。真空断熱材35は、図3において扉外板31から見たときに、左側板状部9内の真空断熱材95の第1の冷凍室扉21に向かって延出する先端部を覆うように、当該先端部を超えて延出しているため、第1の冷凍室扉21の左端部近傍における断熱性能が向上するとともに、結露温度帯が真空断熱材35内に閉じ込められ、第1の冷凍室扉21の左端部近傍に結露が発生することも防止することができる。 In the refrigerator of the present embodiment configured as described above, the vacuum heat insulating material 35 of the first freezer compartment door 21 is sandwiched between the door outer plate 31 and the door inner plate 33, and the first freezer compartment. It extends to the vicinity of the left end of the door 21. When viewed from the door outer plate 31 in FIG. 3, the vacuum heat insulating material 35 covers the front end portion extending toward the first freezer compartment door 21 of the vacuum heat insulating material 95 in the left plate-like portion 9. Since it extends beyond the tip, the heat insulation performance in the vicinity of the left end of the first freezer compartment door 21 is improved, and the dew condensation temperature zone is confined in the vacuum heat insulating material 35, so that the first freezer compartment It is also possible to prevent condensation from occurring near the left end of the door 21.
 なお、「図3において扉外板31から見たときに、左側板状部9内の真空断熱材95の第1の冷凍室扉21に向かって延出する先端部を覆うように当該先端部を超えて延出する」という文は、「第1の冷凍室扉21の真空断熱材35の左端部は、ガスケット41のガスケット取付部49の中心位置よりも例えば3mm以上外側(第1の冷凍室扉21の左端部側)に延出している」ことを意味する。これにより、第1の冷凍室扉21の左端部近傍において、断熱性能が向上できるとともに、結露が発生することも防止することができる。 “When viewed from the door outer plate 31 in FIG. 3, the front end portion covers the front end portion extending toward the first freezer compartment door 21 of the vacuum heat insulating material 95 in the left side plate-shaped portion 9. "The left end of the vacuum heat insulating material 35 of the first freezer compartment door 21 is, for example, 3 mm or more outside the center position of the gasket mounting portion 49 of the gasket 41 (the first freezing chamber door 21 extends beyond the first freezing chamber door 21). It extends to the left end side of the chamber door 21 ”. Thereby, in the vicinity of the left end portion of the first freezer compartment door 21, the heat insulation performance can be improved and the occurrence of condensation can be prevented.
 また、冷気漏れ防止部として機能するスロート部43の内部に発泡断熱材37(EPS等)が存在する場合には、スロート部43の発泡断熱材37よりも外側(第1の冷凍室扉21の左端部側)に真空断熱材35を延出することにより、第1の冷凍室扉21の左端部近傍において、断熱性能の向上を期待できる。 Moreover, when the foam heat insulating material 37 (EPS etc.) exists in the inside of the throat part 43 which functions as a cold air leak prevention part, it is outside the foam heat insulating material 37 of the throat part 43 (of the first freezer compartment door 21). By extending the vacuum heat insulating material 35 to the left end portion side), an improvement in heat insulating performance can be expected in the vicinity of the left end portion of the first freezer compartment door 21.
 更に、真空断熱材35を、第1の冷凍室扉21の左端部がガスケット取付部49の中心位置よりも外側(第1の冷凍室扉21の左端部側)に延出させることにより、断熱箱体3の正面から見た大きさである正面視サイズに対する真空断熱材の被覆率を増大することができる。それゆえ、左側板状部9の前端部に対向する第1の冷凍室扉21の角部の断熱性能を向上させることができる。結果として、冷蔵庫1の断熱性能を向上することができ、結露を防止することができる。 Furthermore, the vacuum heat insulating material 35 is insulated by extending the left end portion of the first freezer compartment door 21 to the outside (the left end portion side of the first freezer compartment door 21) from the center position of the gasket mounting portion 49. The coverage of the vacuum heat insulating material with respect to the size of the front view which is the size seen from the front of the box 3 can be increased. Therefore, the heat insulation performance of the corner portion of the first freezer compartment door 21 facing the front end portion of the left plate-like portion 9 can be improved. As a result, the heat insulation performance of the refrigerator 1 can be improved and condensation can be prevented.
 なお、本実施形態では、左側板状部9の前端部に対向する第1の冷凍室扉21の角部の構造について説明したが、左側板状部9の前端部に対向する冷蔵室扉15,15、野菜室扉17、製氷室扉19、第2の冷凍室扉23の角部、および右側板状部11の前端部に対向する冷蔵室扉15,15、野菜室扉17、製氷室扉19、第2の冷凍室扉23の角部も同様の構造を有する。 In the present embodiment, the structure of the corner portion of the first freezer compartment door 21 that faces the front end portion of the left plate portion 9 has been described, but the refrigerator door 15 that faces the front end portion of the left plate portion 9. 15, Vegetable room door 17, Ice making room door 19, Corner part of second freezing room door 23, Refrigerating room doors 15 and 15, Vegetable room door 17, Ice making room facing the front end of right plate-like part 11. The corners of the door 19 and the second freezer compartment door 23 have the same structure.
 また、本実施形態では、冷蔵庫1において、上面板状部5、底面板状部7、左側板状部9、右側板状部11、背面板状部13は別々に設けられており、これらの板状部を連結することにより、冷蔵庫1の断熱箱体3を構成している。すなわち、断熱箱体3の外箱を構成する複数の外箱用板部材が別々に設けられている。しかしながら、本実施形態はこれに限定されるものでなく、一枚の板のように、複数の外箱用板部材が一体的に設けられて外箱を形成してもよい。同様に、断熱箱体3の内箱を構成する複数の内箱用板部材が別々に設けられている。しかしながら、本実施形態はこれに限定されるものでなく、一枚の板のように、複数の内箱用板部材が一体的に設けられて内箱を形成してもよい。 In the present embodiment, in the refrigerator 1, the top plate portion 5, the bottom plate portion 7, the left plate portion 9, the right plate portion 11, and the back plate portion 13 are provided separately. The heat insulation box 3 of the refrigerator 1 is comprised by connecting a plate-shaped part. That is, a plurality of outer box plate members constituting the outer box of the heat insulating box 3 are separately provided. However, the present embodiment is not limited to this, and a plurality of outer box plate members may be integrally provided to form an outer box like a single plate. Similarly, a plurality of inner box plate members constituting the inner box of the heat insulating box 3 are separately provided. However, the present embodiment is not limited to this, and a plurality of inner box plate members may be integrally provided to form an inner box like a single plate.
 本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

Claims (5)

  1.  内箱と外箱との間に真空断熱材を挟んで断熱箱体として構成される冷蔵庫本体と、
     前記断熱箱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の間に挟まれた真空断熱材を有し、
     前記断熱箱体の側壁側に位置する前記扉の真空断熱材の端部は、前記側壁の内板面よりも外側に延出していることを特徴とする冷蔵庫。
    A refrigerator body configured as a heat insulating box with a vacuum heat insulating material sandwiched between the inner box and the outer box;
    A door for opening and closing the front opening of the heat insulation box;
    With
    The door has a vacuum heat insulating material sandwiched between an inner plate and an outer plate,
    The refrigerator is characterized in that an end portion of the vacuum heat insulating material of the door located on the side wall side of the heat insulation box extends outward from an inner plate surface of the side wall.
  2.  前記断熱箱体の側壁側に位置する前記扉の真空断熱材の端部は、ガスケットを前記扉の端部に取り付けるための差込部の中心よりも外側に延出していることを特徴とする請求項1記載の冷蔵庫。 The end portion of the vacuum heat insulating material of the door located on the side wall side of the heat insulating box extends outward from the center of the insertion portion for attaching a gasket to the end portion of the door. The refrigerator according to claim 1.
  3.  前記扉の真空断熱材の周囲に形成される耳部は前記真空断熱材の内側に折り返され、
     前記折り返された耳部の先端が、前記ガスケットを前記扉の端部に取り付けるための差込部の中心よりも内側にあることを特徴とする請求項2記載の冷蔵庫。
    Ears formed around the vacuum insulation of the door are folded inside the vacuum insulation,
    The refrigerator according to claim 2, wherein a tip of the folded ear portion is located inside a center of an insertion portion for attaching the gasket to an end portion of the door.
  4.  前記扉には、前記冷蔵庫内部に延びる突出部が設けられ、
     前記突出部は断熱性を保持することを特徴とする請求項1乃至3のいずれか1項に記載の冷蔵庫。
    The door is provided with a protrusion that extends into the refrigerator,
    The refrigerator according to any one of claims 1 to 3, wherein the protruding portion retains heat insulation.
  5.  前記扉には、前記扉からの冷気漏れを防ぐために前記冷蔵庫内部に突出する冷気漏れ防止部が設けられ、
     前記断熱箱体の側壁側に位置する前記扉の真空断熱材の端部は、前記冷気漏れ防止部より外側に延出していることを特徴とする請求項1乃至4のいずれか1項に記載の冷蔵庫。
    The door is provided with a cold air leakage prevention portion protruding into the refrigerator to prevent cold air leakage from the door,
    The end part of the vacuum heat insulating material of the door located on the side wall side of the heat insulation box extends to the outside from the cold air leakage prevention part. Refrigerator.
PCT/JP2012/081282 2011-12-06 2012-12-03 Refrigerator WO2013084844A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12854870.8A EP2789947B1 (en) 2011-12-06 2012-12-03 Refrigerator
CN201280059905.5A CN104114965B (en) 2011-12-06 2012-12-03 Refrigerator

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JP6230294B2 (en) * 2013-06-25 2017-11-15 東芝ライフスタイル株式会社 refrigerator
JP2015031442A (en) * 2013-08-02 2015-02-16 日立アプライアンス株式会社 Cold storage
JP6517858B2 (en) * 2017-02-27 2019-05-22 東芝ライフスタイル株式会社 refrigerator
JP6854314B2 (en) * 2019-04-12 2021-04-07 東芝ライフスタイル株式会社 refrigerator

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JP5851223B2 (en) 2016-02-03
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TWI621821B (en) 2018-04-21
EP2789947A4 (en) 2015-07-29

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