JP2019023536A - refrigerator - Google Patents

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Publication number
JP2019023536A
JP2019023536A JP2017143185A JP2017143185A JP2019023536A JP 2019023536 A JP2019023536 A JP 2019023536A JP 2017143185 A JP2017143185 A JP 2017143185A JP 2017143185 A JP2017143185 A JP 2017143185A JP 2019023536 A JP2019023536 A JP 2019023536A
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Prior art keywords
heat insulating
insulating material
door
refrigerator
outer plate
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JP2017143185A
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JP6875221B2 (en
Inventor
亨介 中磯
Kyosuke Nakaiso
亨介 中磯
康位 山崎
Yasutaka Yamazaki
康位 山崎
陽平 門傳
Yohei Kadoi
陽平 門傳
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Hitachi Appliances Inc
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Hitachi Appliances Inc
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Priority to JP2021072864A priority patent/JP2021119325A/en
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Abstract

To provide a refrigerator having a heat insulation door that is free from leakage of a heat insulation material without impairing design property and excellent in heat insulation performance and design property.SOLUTION: A refrigerator includes a heat insulation door where a space formed between an outer plate and an inner plate is filled with a foaming heat insulation material. In the refrigerator, the inner plate in a final filling part for the heat insulation material is provided with a gas vent hole for discharging a gas that is generated when the heat insulation material foams, to the outside, and formed with a hollow part connected to the gas vent hole.SELECTED DRAWING: Figure 4

Description

本発明は冷蔵庫に関する。   The present invention relates to a refrigerator.

従来の冷蔵庫における断熱扉としては、たとえば、下記特許文献１に示されたものがある。その構造を図９、図１０を参照して説明する。図９は従来の冷蔵庫の回転式開閉扉の構造を示す横断面図である。図１０は図９のＡ部分の拡大断面図である。一般に、冷蔵庫には、図９に示すような回動式の開閉扉である断熱扉１００が使用されている。   As a heat insulation door in the conventional refrigerator, there exists a thing shown by the following patent document 1, for example. The structure will be described with reference to FIGS. FIG. 9 is a cross-sectional view showing the structure of a conventional rotary door of a refrigerator. FIG. 10 is an enlarged cross-sectional view of a portion A in FIG. In general, a heat insulating door 100 which is a rotary opening / closing door as shown in FIG. 9 is used in a refrigerator.

図９に示される断熱扉１００は、外板１１０と、外板１１０に接着された真空断熱材１５０と、真空成形により加工されたライナー１３０と、外板１１０とライナー１３０の間に設けられた枠材１２０と、外板１１０、扉ライナー１３０および枠材１２０によって形成された空間内に発泡充填された発泡断熱材１４０と、を備えている。
図１０に示すように、ライナー１３０の土手１８０には、発泡断熱材１４０の発泡充填の際の最終充填部にガスを抜くガス抜き穴１９２が設けられている。これにより、扉体の空間内にガス溜まりが生じにくくなり、断熱材の未充填や密度不均一を抑制し、断熱性能低下を防ぐ事が可能である。 The heat insulating door 100 shown in FIG. 9 is provided between the outer plate 110, the vacuum heat insulating material 150 bonded to the outer plate 110, the liner 130 processed by vacuum forming, and the outer plate 110 and the liner 130. A frame material 120 and a foam heat insulating material 140 filled with foam in a space formed by the outer plate 110, the door liner 130 and the frame material 120 are provided.
As shown in FIG. 10, the bank 180 of the liner 130 is provided with a gas vent hole 192 through which gas is extracted from the final filling portion when the foam heat insulating material 140 is filled with foam. Thereby, it becomes difficult to produce a gas pool in the space of the door body, and it is possible to suppress unfilling of the heat insulating material and density nonuniformity and to prevent a decrease in heat insulating performance.

特開平８-１４７３３号公報JP-A-8-14733

しかしながら、ガス抜き構造の形成が加工上容易でないことから、ガス抜き穴から発泡断熱材が発泡圧の影響で外部に漏れ出てしまう可能性があった。   However, since the formation of the gas vent structure is not easy in terms of processing, there is a possibility that the foam heat insulating material leaks out of the gas vent hole due to the foam pressure.

そこで、本発明は、上記の課題を解決する為に成されたもので、その目的は、意匠性を損なうことなく、発泡断熱材漏れの発生することのない、意匠性と断熱性能に優れた断熱扉を有する冷蔵庫を提供することにある。   Therefore, the present invention was made to solve the above-mentioned problems, and the purpose thereof was excellent in design and heat insulation performance without impairing the design property and without causing foam insulation heat leak. It is providing the refrigerator which has a heat insulation door.

上記目的を達成するために、本発明は、外板と内板との間に形成された空間内に断熱材を発泡充填した断熱扉を備えた冷蔵庫において、前記断熱材の最終充填部にある前記内板に、前記断熱材の発泡時に発生するガスを外部に放出するガス抜き穴を有し、前記ガス抜き穴に接続する中空部を形成した。   In order to achieve the above object, the present invention is a refrigerator including a heat insulating door in which a heat insulating material is foam-filled in a space formed between an outer plate and an inner plate, and is in a final filling portion of the heat insulating material. The inner plate has a gas vent hole for releasing a gas generated when the heat insulating material is foamed to the outside, and a hollow portion connected to the gas vent hole is formed.

本発明によれば、意匠性を損なうことなく、発泡断熱材漏れの発生することのない、意匠性と断熱性能に優れた断熱扉を有する冷蔵庫を提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the refrigerator which has the heat insulation door excellent in the design property and the heat insulation performance which does not generate | occur | produce a foam heat insulation material without impairing the design property can be provided.

本発明の実施形態に係る冷蔵庫の一例を示す正面図である。It is a front view which shows an example of the refrigerator which concerns on embodiment of this invention. 冷蔵庫の回動式の断熱扉を示す正面図である。It is a front view which shows the rotation-type heat insulation door of a refrigerator. 回動式の断熱扉を示す分解斜視図である。It is a disassembled perspective view which shows a rotation-type heat insulation door. 図２のＩ−Ｉ拡大断面図である。It is II expanded sectional drawing of FIG. 図４の土手先端部分拡大断面図である。FIG. 5 is an enlarged cross-sectional view of the bank tip portion of FIG. 4. 図５の変形例を示す土手先端部分拡大断面図である。It is a bank front-end | tip part expanded sectional view which shows the modification of FIG. 図６の斜視図である。FIG. 7 is a perspective view of FIG. 6. 図５の他の変形例を示す土手先端部分拡大断面図である。It is a bank front-end | tip part expanded sectional view which shows the other modification of FIG. 従来の冷蔵庫の回動式開閉扉の構造を示す横断面図である。It is a cross-sectional view which shows the structure of the rotation type opening / closing door of the conventional refrigerator. 図９の土手先端部分拡大断面図である。FIG. 10 is an enlarged cross-sectional view of the bank tip portion of FIG. 9.

まず、図１〜図８を参照しながら本発明の実施形態に係る冷蔵庫の一例を説明する。   First, an example of a refrigerator according to an embodiment of the present invention will be described with reference to FIGS.

以下、本発明の実施形態として、６ドアタイプの冷蔵庫１を例に挙げて説明するが、ドアの数は限定されず、５ドア以下のタイプや、１ドアタイプに適用してもよい。また、以下では、冷蔵庫１を正面から見たときの方向を基準として説明する。また、以下に示す図面において、同一の部材には適宜同一の参照符号を付し、重複した説明を適宜省略する。また、部材のサイズ及び形状は、説明の便宜のため、変形または誇張して模式的に表す場合がある。   Hereinafter, as an embodiment of the present invention, a six-door type refrigerator 1 will be described as an example, but the number of doors is not limited, and may be applied to a five-door type or a one-door type. Moreover, below, it demonstrates on the basis of the direction when the refrigerator 1 is seen from the front. Further, in the drawings shown below, the same members are denoted by the same reference numerals as appropriate, and repeated descriptions are omitted as appropriate. In addition, the size and shape of the member may be schematically represented by being deformed or exaggerated for convenience of explanation.

≪冷蔵庫≫
図１に示すように、冷蔵庫１は、冷蔵室２、製氷室３、切替室（上段冷凍室、急速冷凍室）４、下段冷凍室５（引出室、第１貯蔵室／以下、「冷凍室５」とする）、及び、野菜室６（引出室、第２貯蔵室）を備えている。 ≪Refrigerator≫
As shown in FIG. 1, the refrigerator 1 includes a refrigerator compartment 2, an ice making compartment 3, a switching compartment (upper freezer compartment, quick freezer compartment) 4, a lower freezer compartment 5 (drawer compartment, first storage compartment / below, “freezer compartment” 5 ”) and a vegetable room 6 (drawer room, second storage room).

冷蔵庫１は、冷蔵室２を開閉する回動式（ヒンジ式）の断熱扉２ａ，２ｂと、製氷室３を開閉する引出式の断熱扉３ａと、切替室４を開閉する引出式の断熱扉４ａと、冷凍室５を開閉する引出式の断熱扉５ａと、野菜室６を開閉する引出式の断熱扉６ａと、をそれぞれ備えている。   The refrigerator 1 includes rotating (hinge) heat insulating doors 2 a and 2 b that open and close the refrigerator compartment 2, a drawer heat insulating door 3 a that opens and closes the ice making chamber 3, and a drawer heat insulating door that opens and closes the switching chamber 4. 4a, a drawer-type heat insulating door 5a for opening and closing the freezer compartment 5, and a drawer-type heat insulating door 6a for opening and closing the vegetable compartment 6 are provided.

≪断熱扉≫
回動式の断熱扉２ａ，２ｂは、同様の構成である。このため、図２に示す断熱扉２ａを代表して回動式扉を説明する。また、図５〜図７に示す引出式の断熱扉３ａ，４ａ，５ａ，６ａは、同様な構成であるので、代表して断熱扉５ａを後記する。 ≪Insulated door≫
The rotary heat insulating doors 2a and 2b have the same configuration. For this reason, a rotary door is demonstrated on behalf of the heat insulation door 2a shown in FIG. Moreover, since the drawer-type heat insulation doors 3a, 4a, 5a, and 6a shown in FIGS. 5 to 7 have the same configuration, the heat insulation door 5a will be described later as a representative.

≪回動式の断熱扉≫
まず、図３及び図４を参照して回動式の断熱扉２ａを説明する。 ≪Rotating insulation door≫
First, with reference to FIG.3 and FIG.4, the rotation-type heat insulation door 2a is demonstrated.

図３に示すように、断熱扉２ａは、断熱扉２ａの表面に設けられたガラス製の外板１０と、外板１０の周縁に設けられた扉枠２０と、外板１０の裏面に配置された真空断熱材３０と、外板１０と扉枠２０とで形成された空間４０に真空断熱材３０を介在させて充填された発泡断熱材５０（図４参照）と、扉枠２０の裏面に設けられた内板（ライナー）６０と、外板１０を扉枠２０に固定するための両面テープ７０と、を備えて構成されている。   As shown in FIG. 3, the heat insulating door 2 a is disposed on the glass outer plate 10 provided on the surface of the heat insulating door 2 a, the door frame 20 provided on the periphery of the outer plate 10, and the back surface of the outer plate 10. And the foam insulation 50 filled with the vacuum insulation 30 interposed in the space 40 formed by the outer plate 10 and the door frame 20, and the back surface of the door frame 20. Are provided with an inner plate (liner) 60 and a double-sided tape 70 for fixing the outer plate 10 to the door frame 20.

＜外板＞
断熱扉２ａの表面を構成する外板１０は、断熱扉２ａの表面（前面）側の外壁を形成する透光性の矩形の平板部材から成る。外板１０の外周部は、縦長の四角枠状の扉枠２０の内側前端部に装着されて、扉枠２０によって覆われている。外板１０は、右側の枠部材２１の係合溝２１ａ（図４参照）と、左上下側の枠部材２２，２３，２４のテープ貼付部２２ａ，２３ａ，２４ａに貼着された両面テープ７０と、によって扉枠２０に固定されている。なお、外板１０は、強化ガラス製の平板材が好ましいが、プラスチック等の透光性の扉板や金属製の扉板であってもよい。 <Outer plate>
The outer plate 10 constituting the surface of the heat insulating door 2a is made of a translucent rectangular flat plate member that forms the outer wall on the surface (front surface) side of the heat insulating door 2a. An outer peripheral portion of the outer plate 10 is attached to an inner front end portion of a vertically long rectangular frame-like door frame 20 and is covered with the door frame 20. The outer plate 10 has a double-sided tape 70 attached to the engagement groove 21a (see FIG. 4) of the right frame member 21 and the tape applying portions 22a, 23a, 24a of the left and upper frame members 22, 23, 24. And is fixed to the door frame 20. The outer plate 10 is preferably a flat plate made of tempered glass, but may be a translucent door plate such as plastic or a metal door plate.

＜扉枠＞
図３に示すように、扉枠２０は、矩形の断熱扉２ａの外周部位を形成する樹脂製の枠体である。扉枠２０は、外板１０の右辺部が挿入されて支持される係合溝２１ａを有する右側の枠部材２１と、外板１０の左辺部、上辺部、下辺部が貼り付けられる両面テープ７０が貼着されたテープ貼付部２２ａ，２３ａ，２４ａを有する上下左側の枠部材２２，２３，２４と、を四角形に連結して形成されている。 <Door frame>
As shown in FIG. 3, the door frame 20 is a resin frame that forms the outer peripheral portion of the rectangular heat insulating door 2 a. The door frame 20 includes a right frame member 21 having an engagement groove 21a that is supported by inserting the right side portion of the outer plate 10, and a double-sided tape 70 to which the left side portion, upper side portion, and lower side portion of the outer plate 10 are attached. The upper and lower left and right frame members 22, 23, and 24 having tape attaching portions 22 a, 23 a, and 24 a attached thereto are connected in a square shape.

係合溝２１ａは、外板１０の右辺部が挿入される凹状溝から成る（図４参照）。   The engaging groove 21a is a concave groove into which the right side portion of the outer plate 10 is inserted (see FIG. 4).

テープ貼付部２２ａ，２３ａ，２４ａは、上下左側の枠部材２２，２３，２４の内縁部に、断面視して、外板１０の厚さと両面テープ７０の厚さを加算した高さだけ、扉枠２０の表面から段差状に窪んで形成された平面視して帯状に延設された平らな部位である（図４参照）。   The tape applying portions 22a, 23a, 24a are doors corresponding to the height obtained by adding the thickness of the outer plate 10 and the thickness of the double-sided tape 70 as viewed in cross section to the inner edge portions of the upper and lower left and right frame members 22, 23, 24. It is a flat part formed in a step shape from the surface of the frame 20 and extending in a band shape in plan view (see FIG. 4).

両面テープ７０は、表面及び裏面の両面が貼着可能な細長い帯状の粘着テープである。   The double-sided tape 70 is an elongated strip-like adhesive tape that can be attached to both the front and back surfaces.

＜真空断熱材＞
真空断熱材３０は、その材質は特に限定されないが、一例を挙げると、多孔質構造のグラスウール等の芯材をラミネートフィルムで真空パックして内部を減圧して封止した断熱材から成り、気体熱伝導率が略ゼロであるため、優れた断熱性能を有している。 <Vacuum insulation>
The material of the vacuum heat insulating material 30 is not particularly limited. For example, the vacuum heat insulating material 30 is made of a heat insulating material in which a core material such as glass wool having a porous structure is vacuum-packed with a laminate film and the inside is decompressed and sealed. Since the thermal conductivity is substantially zero, it has excellent heat insulation performance.

＜空間＞
前記空間４０は、断熱扉２ａを製造する際に、高温状態の発泡断熱材５０の材料が流し込まれる部位であり、真空断熱材３０を載置した外板１０と、扉枠２０と、で形成されている。このため、完成された断熱扉２ａ内には、発泡断熱材５０が充填されているので、その空間４０が無い。 <Space>
The space 40 is a portion into which the material of the foamed heat insulating material 50 in a high temperature state is poured when the heat insulating door 2 a is manufactured, and is formed by the outer plate 10 on which the vacuum heat insulating material 30 is placed and the door frame 20. Has been. For this reason, in the completed heat insulation door 2a, since the foam heat insulating material 50 is filled, the space 40 does not exist.

＜発泡断熱材＞
図４に示す発泡断熱材５０は、断熱材としての機能と、接着剤としての機能と、を備えている。発泡断熱材５０は、中央部に真空断熱材３０を載置した外板１０と、外板１０の外周に取り付けられた扉枠２０とで形成された空間４０に、真空断熱材３０を介在させて充填されることによって、空間４０の内壁面に接着される。このため、発泡断熱材５０は、真空断熱材３０を覆った状態で外板１０の裏面に接着されている。 <Foam insulation>
The foam heat insulating material 50 shown in FIG. 4 has a function as a heat insulating material and a function as an adhesive. The foam heat insulating material 50 has the vacuum heat insulating material 30 interposed in a space 40 formed by the outer plate 10 on which the vacuum heat insulating material 30 is placed in the center and the door frame 20 attached to the outer periphery of the outer plate 10. By being filled in, it is adhered to the inner wall surface of the space 40. For this reason, the foam heat insulating material 50 is bonded to the back surface of the outer plate 10 while covering the vacuum heat insulating material 30.

＜内板＞
断熱扉２ａの裏面の内板を構成するライナー６０は、断熱扉２ａの貯蔵室側に設けられた樹脂製の板部材である。ライナー６０は、扉枠２０の裏面側の周縁部に固定されている。ライナー６０の裏面側の外周部には、断熱扉２ａを冷蔵庫本体と密着させて貯蔵室の気密性を確保するためのシール部材（図示省略）が設けられている。 <Inner plate>
The liner 60 constituting the inner plate on the back surface of the heat insulating door 2a is a resin plate member provided on the storage chamber side of the heat insulating door 2a. The liner 60 is fixed to the peripheral edge on the back side of the door frame 20. A seal member (not shown) is provided on the outer peripheral portion on the back surface side of the liner 60 to secure the airtightness of the storage room by bringing the heat insulating door 2a into close contact with the refrigerator body.

＜組立＞
次に、図３及び図４を主に参照しながら本発明の実施形態に係る冷蔵庫１の回動式の断
熱扉２ａの作用を組立順に沿って説明する。 <Assembly>
Next, the operation of the rotary heat insulating door 2a of the refrigerator 1 according to the embodiment of the present invention will be described in the order of assembly with reference mainly to FIGS.

回動式の断熱扉２ａを組み立てる場合は、まず、図３に示すように、枠部材２２のテープ貼付部２２ａと、枠部材２３のテープ貼付部２３ａと、枠部材２４のテープ貼付部２４ａとにそれぞれ両面テープ７０（図４参照）を貼り付ける。次に、外板１０の右端部を枠部材２１の係合溝２１ａ（図４参照）に挿入し、外板１０の上下左端部を枠部材２２、枠部材２３及び枠部材２４の両面テープ７０に、外板１０の外周部をそれぞれ貼り付ける。   When assembling the rotary heat insulating door 2a, first, as shown in FIG. 3, the tape applying portion 22a of the frame member 22, the tape applying portion 23a of the frame member 23, and the tape applying portion 24a of the frame member 24 A double-sided tape 70 (see FIG. 4) is attached to each. Next, the right end portion of the outer plate 10 is inserted into the engaging groove 21a (see FIG. 4) of the frame member 21, and the upper and lower left ends of the outer plate 10 are inserted into the double-sided tape 70 of the frame member 22, the frame member 23 and the frame member 24. Further, the outer peripheral portion of the outer plate 10 is pasted.

続いて、図４に示すように、外板１０を下側に配置して、その外板１０の裏面中央部に真空断熱材３０を載置して、空間４０内に発泡断熱材５０の材料を充填する。次に、扉枠２０の裏面側周縁部にライナー６０を設けて、空間４０を閉塞する。このようにして断熱扉２ａは、組み立てられる。   Subsequently, as shown in FIG. 4, the outer plate 10 is disposed on the lower side, the vacuum heat insulating material 30 is placed on the center of the back surface of the outer plate 10, and the material of the foam heat insulating material 50 in the space 40. Fill. Next, a liner 60 is provided on the peripheral edge of the back side of the door frame 20 to close the space 40. In this way, the heat insulating door 2a is assembled.

≪管状流路付きのライナー効果≫
図５は、図４の土手８０先端部の拡大断面図である。図５に示されるように土手先端部は、内側開口９１と、管状流路９０と、ガス抜き穴９２と、により構成されている。ここで、管状流路９０は、土手８０の先端部を形成する平面から内側へ垂直に延びるように成型されており、内側開口９１とガス抜き穴９２は一定の径で繋がっている。なお、ライナー６０をインジェクションにより成型すれば、図５の様な複雑な形状であっても形成可能である。 ≪Liner effect with tubular channel≫
FIG. 5 is an enlarged cross-sectional view of the tip of the bank 80 of FIG. As shown in FIG. 5, the bank tip is constituted by an inner opening 91, a tubular channel 90, and a gas vent hole 92. Here, the tubular channel 90 is molded so as to extend vertically inward from the plane forming the tip of the bank 80, and the inner opening 91 and the vent hole 92 are connected with a constant diameter. If the liner 60 is molded by injection, even a complicated shape as shown in FIG. 5 can be formed.

また、ガス抜き穴９２は、発泡断熱材５０の発泡時に発生するガスを外部に放出するためのものであり、発泡断熱材５０の最終充填部にある土手８０先端部の平面に形成される。   Further, the gas vent hole 92 is for releasing the gas generated when the foam heat insulating material 50 is foamed to the outside, and is formed in the plane of the tip of the bank 80 in the final filling portion of the foam heat insulating material 50.

ここで、外板１０とライナー６０との間に形成される空間内に、発泡断熱材５０を発泡充填させる過程について説明する。発泡充填の作業は、図４に示すように、外板１０が下向きになる姿勢にして行われる。この姿勢になった状態で、真空断熱材３０の上から液性の発泡断熱材５０を中央付近に流し込むことで発泡が開始される。発泡を開始した発泡断熱材５０は、水平方向に広がりつつ上昇する。すなわち、断熱材の最終充填部は真空断熱材３０中央付近から最も距離の離れている土手８０先端部となる。   Here, a process of foaming and filling the foam heat insulating material 50 in the space formed between the outer plate 10 and the liner 60 will be described. The foam filling operation is performed in a posture in which the outer plate 10 faces downward as shown in FIG. In this state, foaming is started by pouring the liquid foam heat insulating material 50 near the center from above the vacuum heat insulating material 30. The foam heat insulating material 50 that has started foaming rises while spreading in the horizontal direction. That is, the final filling portion of the heat insulating material is the leading end portion of the bank 80 that is the farthest from the center of the vacuum heat insulating material 30.

土手８０先端部に達した発泡断熱材５０は、内側開口９１を通過し、管状流路９０に流動する。このとき、管状流路９０の内径が微細な為に発泡断熱材５０の進行方向とは逆向きの流動抵抗が発生し、ガス抜き穴９２からの発泡断熱材５０の漏れを抑止できる。   The foam heat insulating material 50 that has reached the tip of the bank 80 passes through the inner opening 91 and flows into the tubular channel 90. At this time, since the inner diameter of the tubular flow path 90 is fine, flow resistance in the direction opposite to the traveling direction of the foam heat insulating material 50 is generated, and leakage of the foam heat insulating material 50 from the gas vent hole 92 can be suppressed.

また、本実施形態のライナー６０における管状流路９０は、発泡断熱材５０の発泡圧進行方向と平行な位置関係となるように設けられる為、発泡圧による曲がり、変形、折れを抑制できる。   Moreover, since the tubular flow path 90 in the liner 60 of this embodiment is provided so that it may become a positional relationship parallel to the foaming pressure progression direction of the foam heat insulating material 50, the bending, deformation | transformation, and bending by a foaming pressure can be suppressed.

さらに、ガス抜き穴９２に接続される管状流路９０は、土手８０の底部を超えない長さであって、土手８０内に収容されている為、外板１０に接着される真空断熱材３０との干渉、接触を回避することが可能となる。   Furthermore, the tubular flow path 90 connected to the gas vent hole 92 has a length that does not exceed the bottom of the bank 80 and is accommodated in the bank 80, so that the vacuum heat insulating material 30 that is bonded to the outer plate 10. It is possible to avoid interference and contact.

≪変形例≫
なお、本発明は、前記実施形態に限定されるものではなく、その技術的思想の範囲内で種々の改造及び変更が可能であり、本発明はこれら改造及び変更された発明にも及ぶことは勿論である。前記実施形態で説明した図５に示すライナー土手８０先端部分は、その一例として管状流路９０を設け流動抵抗によりガス抜き穴９２からの発泡断熱材５０の漏れを防ぐ手段を説明したが、これに限定されるものではない。例えば、土手８０先端部において、発泡断熱材５０の流動方向に延びる仕切り部等により、ガス抜き穴９２に接続する中空部が形成されていれば、発泡断熱材５０の漏れ防止や、発泡圧によるライナー６０の変形等の抑制が可能である。 ≪Modification≫
The present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the technical idea. The present invention extends to these modifications and changes. Of course. The tip of the liner bank 80 shown in FIG. 5 described in the above embodiment has been described as a means for providing a tubular channel 90 and preventing leakage of the foam insulation 50 from the gas vent hole 92 by flow resistance. It is not limited to. For example, if a hollow portion connected to the gas vent hole 92 is formed by a partition portion or the like extending in the flow direction of the foam heat insulating material 50 at the leading end of the bank 80, leakage prevention of the foam heat insulating material 50 or foam pressure The deformation of the liner 60 can be suppressed.

図６は、ライナー土手８０先端部分の変形例を示す横断面図である。ここで、前記実施形態で説明したものと同一なものは、同一符号を付してその説明は省略する。   FIG. 6 is a cross-sectional view showing a modified example of the tip portion of the liner bank 80. Here, the same components as those described in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

図６および図７に示すように、土手８０先端部に、土手８０内の空間と仕切る格子状のリブ９３を形成してもよい。リブ９３は、リブ開口９４と、内側開口９１と、ガス抜き穴９２と、から構成されている。このように形成すれば、管状流路９０を設けた場合と同様に流動抵抗により発泡断熱材５０を内部で食い止めることが可能である。また、強度の観点で、管状流路９０のガス抜き穴９２と比べて強くなる為、土手８０先端部以外での発泡断熱材５０の漏れを抑止する際には非常に有用である。したがって、回動式の断熱扉のライナーだけでなく、引き出し式の断熱扉のライナーにも活用することが出来る。   As shown in FIGS. 6 and 7, lattice-shaped ribs 93 that partition the space in the bank 80 may be formed at the tip of the bank 80. The rib 93 includes a rib opening 94, an inner opening 91, and a gas vent hole 92. If formed in this way, it is possible to stop the foam heat insulating material 50 by flow resistance as in the case where the tubular flow path 90 is provided. Moreover, since it becomes stronger than the gas vent hole 92 of the tubular channel 90 in terms of strength, it is very useful for suppressing the leakage of the foam heat insulating material 50 other than the tip of the bank 80. Therefore, it can be used not only for the liner of the rotary type heat insulation door but also for the liner of the drawer type heat insulation door.

図８は、ライナー土手先端部分の他の変形例を示す横断面図である。   FIG. 8 is a cross-sectional view showing another modification of the liner bank tip.

図８に示すように、土手８０外部に成型されるポケット／バスケット組付部８１を、ライナー６０とは別部材とし、ポケット／バスケット組付部８１と土手８０との間で、ガス抜き流路（中空部）を形成しても良い。この場合は、土手８０先端部に内側開口９１が形成され、ガス抜き流路の終端部にガス抜き穴９２が形成される。このようにしても、管状流路９０を設けた場合と同様に流動抵抗により断熱材を内部で食い止めることが可能である。また、本変形例によれば、ガス抜き穴９２がポケット／バスケット組付部８１のある内側に成型される為、意匠面である土手８０先端部のガス抜き穴９２がなくなる。これにより、発泡断熱材５０の流出を回避しながら意匠性に優れた断熱扉を提供する事が可能となる。   As shown in FIG. 8, a pocket / basket assembly portion 81 molded outside the bank 80 is a separate member from the liner 60, and a gas vent channel is provided between the pocket / basket assembly portion 81 and the bank 80. (Hollow part) may be formed. In this case, an inner opening 91 is formed at the tip of the bank 80, and a gas vent hole 92 is formed at the terminal portion of the gas vent channel. Even if it does in this way, it is possible to stop a heat insulating material inside by flow resistance similarly to the case where the tubular flow path 90 is provided. Moreover, according to this modification, since the vent hole 92 is molded inside the pocket / basket assembly portion 81, the vent hole 92 at the tip of the bank 80, which is the design surface, is eliminated. Thereby, it becomes possible to provide the heat insulation door excellent in the design property, avoiding the outflow of the foam heat insulating material 50.

１ 冷蔵庫
２ａ，３ａ，４ａ，５ａ，６ａ 断熱扉
１０ 外板
２０ 扉枠
３０ 真空断熱材
４０ 空間
５０ 発泡断熱材
６０ 内板（ライナー）
７０ 両面テープ
８０ 土手
９０ 管状流路 DESCRIPTION OF SYMBOLS 1 Refrigerator 2a, 3a, 4a, 5a, 6a Heat insulation door 10 Outer plate 20 Door frame 30 Vacuum heat insulating material 40 Space 50 Foam heat insulating material 60 Inner plate (liner)
70 Double-sided tape 80 Bank 90 Tubular channel

Claims (4)

外板と内板との間に形成された空間内に断熱材を発泡充填した断熱扉を備えた冷蔵庫において、
前記断熱材の最終充填部にある前記内板に、前記断熱材の発泡時に発生するガスを外部に放出するガス抜き穴を有し、
前記ガス抜き穴に接続する中空部が形成されていることを特徴とする冷蔵庫。 In the refrigerator including a heat insulating door in which a heat insulating material is foam-filled in a space formed between the outer plate and the inner plate,
The inner plate in the final filling portion of the heat insulating material has a gas vent hole for releasing the gas generated when the heat insulating material is foamed to the outside,
The refrigerator characterized by the hollow part connected to the said vent hole being formed. 外板と内板との間に形成された空間内に断熱材を発泡充填した断熱扉を備えた冷蔵庫において、
前記内板の土手の先端部に、前記断熱材の発泡時に発生するガスを外部に放出するガス抜き穴を有し、
前記ガス抜き穴から前記断熱材の流動方向に延びる仕切り部が形成されていることを特徴とする冷蔵庫。 In the refrigerator including a heat insulating door in which a heat insulating material is foam-filled in a space formed between the outer plate and the inner plate,
At the tip of the bank of the inner plate, there is a gas vent for releasing the gas generated when the heat insulating material is foamed to the outside,
The refrigerator characterized by the partition part extended in the flow direction of the said heat insulating material from the said vent hole being formed. 請求項１または２において、
前記内板は樹脂製であって、インジェクションにより成型されたものであることを特徴とする冷蔵庫。 In claim 1 or 2,
The refrigerator is characterized in that the inner plate is made of resin and is molded by injection. 請求項２において、
前記外板と前記内板との間に形成された空間内には、真空断熱材が配置されており、
前記仕切り部は、前記土手の底部を超えない長さであることを特徴とする冷蔵庫。 In claim 2,
In the space formed between the outer plate and the inner plate, a vacuum heat insulating material is disposed,
The said partition part is the length which does not exceed the bottom part of the said bank, The refrigerator characterized by the above-mentioned.
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