JP6340549B2

JP6340549B2 - refrigerator

Info

Publication number: JP6340549B2
Application number: JP2014081664A
Authority: JP
Inventors: 愼一堀井; 堀尾　好正; 好正堀尾
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2014-04-11
Filing date: 2014-04-11
Publication date: 2018-06-13
Anticipated expiration: 2034-04-11
Also published as: JP2015203510A; CN204594023U

Description

本発明は冷蔵庫に関するものである。 The present invention relates to a refrigerator.

一般に冷蔵庫は、断熱性を有する冷蔵庫本体内に冷蔵室、冷凍室、野菜室等の貯蔵室を設け、これら各冷蔵室、冷凍室、野菜室等は扉によって開閉可能に構成してある。 In general, refrigerators are provided with storage rooms such as a refrigerator compartment, a freezer compartment, and a vegetable compartment in a refrigerator body having heat insulation properties, and these refrigerator compartments, freezer compartments, vegetable compartments, and the like can be opened and closed by doors.

上記扉は、冷蔵庫本体の前面となる扉外装板と、冷蔵室、冷凍室、野菜室等の内面となる内フレームと、これら扉外装板と内フレームとを一体に連結する枠体との間にウレタンを充填発泡させて、冷蔵庫本体と同様断熱性を有するように構成してある。 The door includes a door exterior plate that is a front surface of the refrigerator body, an inner frame that is an inner surface of a refrigerator compartment, a freezer compartment, a vegetable compartment, and the like, and a frame that integrally connects the door exterior plate and the inner frame. It is configured to have a heat insulation property similar to that of the refrigerator body by filling and foaming urethane.

このような冷蔵庫扉は、ウレタンの充填発泡後、当該発泡ウレタンの熱収縮によって扉外装板の外周部が内側に反る変形が生じる。これはウレタン発泡工程で膨張したウレタンが、工程終了後、熱収縮するが、その熱収縮は外周部ほど大きく、その際、扉外装板はさほど熱収縮しないので、その外周部は発泡ウレタンとの接着によって当該発泡ウレタンの熱収縮に引っ張られて反り変形するのであった。 In such a refrigerator door, after urethane filling and foaming, the outer peripheral portion of the door exterior plate warps inward due to thermal contraction of the urethane foam. This is because the urethane expanded in the urethane foaming process heat shrinks after the end of the process, but the heat shrinkage is as large as the outer periphery, and the door exterior plate does not heat shrink so much at that time, so the outer periphery is the same as the urethane foam. It was warped and deformed by adhesion due to the heat shrinkage of the urethane foam.

更に、この反り変形は、冷蔵庫の運転によってもわずかではあるが経年的に進行していく。すなわち冷蔵庫の運転によって、発泡ウレタンは、扉内側では冷却され熱収縮するのに対し、扉外側では外気温とほぼ同じ温度となっていてそのままであるため、扉外周部が扉内側に向かって反るような形に変形が進行していくのであった。 Further, this warpage deformation progresses with time even though it is slight even by operation of the refrigerator. In other words, the urethane foam is cooled and thermally contracted inside the door by the operation of the refrigerator, while it remains at the same temperature as the outside air temperature outside the door. The deformation progressed into a shape like this.

この反り変形は前記扉成形時の反りを含めても２ｍｍ程度と極めて少ないものであるが、冷蔵室の扉のように面積の大きな扉にあっては使用者が気づくレベルのものになり、意匠性を低下させてしまうと同時に、場合によっては扉外周部に装着してあるガスケットと冷蔵庫本体との間に微小隙間を発生させて省エネ性を低下させてしまう恐れがある。 This warpage deformation is very small, about 2 mm, including the warpage at the time of molding the door, but it is at a level that the user will notice if the door has a large area, such as a refrigerator door. At the same time, there is a possibility that a small gap is generated between the gasket attached to the outer peripheral portion of the door and the refrigerator main body to reduce energy saving.

そこでこのような扉の反り変形を防止すべく扉の外周面を構成する扉縁枠の内面に枠補強金具を設けたものが見られる（例えば特許文献１、特許文献２参照）。 In view of this, there is a type in which a frame reinforcing metal fitting is provided on the inner surface of the door edge frame constituting the outer peripheral surface of the door in order to prevent such warp deformation of the door (see, for example, Patent Document 1 and Patent Document 2).

図９は特許文献１の扉を示し、扉を構成する扉縁枠１０１の内面に枠補強金具１０２が設けてある。また、図１０は特許文献２の扉を示し、この扉はその扉縁枠２０１に枠補強金具２０２を装着するとともにこれら左右の枠補強金具２０２を連結するメイン補強金具２０３を更に設けてある。 FIG. 9 shows a door of Patent Document 1, in which a frame reinforcing metal fitting 102 is provided on the inner surface of a door edge frame 101 constituting the door. FIG. 10 shows a door of Patent Document 2. This door is provided with a main reinforcement fitting 203 for mounting the frame reinforcement fitting 202 on the door edge frame 201 and connecting the left and right frame reinforcement fittings 202.

このような枠補強金具１０２、２０２、２０３を設けた扉は発泡ウレタンの成型時の熱収縮や経年的な熱収縮があっても扉の反り変形を抑制することができる、というものである。 A door provided with such frame reinforcing metal fittings 102, 202, 203 can suppress warping deformation of the door even when there is thermal shrinkage or aging thermal shrinkage at the time of molding urethane foam.

特開平２−２７５２７９号公報JP-A-2-275279 特開２０１３−１６０３８８号公報JP 2013-160388 A

しかしながら、上記従来の扉縁枠に補強金具を設けたものは冷蔵庫使用環境が高湿高温
時にその扉縁枠面に結露が発生しやすい傾向があった。 However, the conventional door rim frame provided with reinforcing metal fittings tends to cause condensation on the surface of the door rim frame when the refrigerator is used in a high humidity and high temperature environment.

すなわち、図１１の参考図に示すように扉の扉縁枠３０３はその内面に扉閉成時における気密性確保のためのガスケット３０４が装着してあって、そのガスケット３０４の脚部３０５が扉縁枠３０３に埋め込まれている。一方、前記扉縁枠３０３の内面には枠補強金具３０６が設けてあって当該枠補強金具３０６は強度確保のため断面略コ字状に形成してあり、このコ字状片部３０６ａが前記ガスケット３０４の脚部３０５に近接することになる。そして、上記ガスケット３０４は扉で閉成した貯蔵室内の冷気によって低温化している。そのため、上記ガスケット３０４の低温がガスケット３０４の脚部３０５を介して枠補強金具３０６のコ字状片部３０６ａにリークしやすく、枠補強金具３０６が低温化してその外面に位置する扉縁枠温度も比較的低い温度になりがちであり、通常は結露が生じるほどではないにしても高温高湿時には扉縁枠表面に結露が生じるのであった。 That is, as shown in the reference view of FIG. 11, the door edge frame 303 of the door is provided with a gasket 304 on its inner surface for ensuring airtightness when the door is closed, and the leg portion 305 of the gasket 304 is connected to the door. It is embedded in the edge frame 303. On the other hand, a frame reinforcing metal fitting 306 is provided on the inner surface of the door frame 303, and the frame reinforcing metal fitting 306 is formed in a substantially U-shaped cross section for ensuring strength. It comes close to the leg 305 of the gasket 304. The gasket 304 is lowered in temperature by the cool air in the storage chamber closed by the door. Therefore, the low temperature of the gasket 304 is likely to leak to the U-shaped piece 306a of the frame reinforcing metal fitting 306 via the leg portion 305 of the gasket 304, and the temperature of the door reinforcing frame 306 is lowered and the door edge frame temperature positioned on the outer surface thereof. However, when the temperature is high and the humidity is high, the surface of the door edge frame is condensed, although the temperature tends to be relatively low.

特に図１１に示したように両開き式扉の突合せ面はこれら両扉の間の気密を確保するための回転式仕切板３０７の断熱性が冷蔵庫本体を構成する発泡ウレタン等に比べ低く、しかも貯蔵室内の冷気が回転式仕切板３０７の両側部を介して直接ガスケット３０４に接するため、ガスケット３０４の温度がそれ以外の外周部分のガスケットの温度に比べ低温化しやすく、結露発生を引き起こしやすい傾向にあった。 In particular, as shown in FIG. 11, the abutting surfaces of the double doors are lower in heat insulation of the rotary partition plate 307 for ensuring airtightness between these doors than the foamed urethane constituting the refrigerator body, and are stored. Since the indoor cool air directly contacts the gasket 304 via both sides of the rotary partition plate 307, the temperature of the gasket 304 tends to be lower than the temperature of the other outer peripheral gaskets and tends to cause condensation. It was.

本発明はこの様な点に鑑みてなしたもので、扉反りを防止しつつ扉端面での結露発生を防止した高品質の冷蔵庫を提供するものである。 This invention is made | formed in view of such a point, and provides the high quality refrigerator which prevented the dew condensation generation | occurrence | production on a door end surface, preventing door curvature.

本発明は上記目的を達成するため、冷蔵庫本体と、前記冷蔵庫本体の貯蔵室を開閉する断熱性の扉とを備え、前記扉は、その扉前面を構成する扉外装板と、扉外装板の内側に位置する内フレームと、前記扉外装板と内フレームとの間の外周面を構成する扉縁枠と、前記扉外装板と内フレームと扉縁枠との間の空間に充填発泡させた発泡断熱材で構成し、前記扉縁枠の縦枠内面には枠補強金具を配置するとともに前記枠補強金具と前記内フレーム外周に配置したガスケット脚部との間に所定の断熱層を設け、前記枠補強金具は断面略コ字状に形成され、前記枠補強金具の前記扉外装板側の片部は前記枠補強金具のガスケット側の片部より長い寸法とした構成としてある。 In order to achieve the above object, the present invention includes a refrigerator main body and a heat insulating door that opens and closes a storage chamber of the refrigerator main body, and the door includes a door exterior plate constituting a front surface of the door, and a door exterior plate. Filled and foamed into the space between the inner frame located on the inner side, the door edge frame constituting the outer peripheral surface between the door outer plate and the inner frame, and the door outer plate, inner frame and door edge frame Constructed with foam heat insulating material, a frame reinforcing metal fitting is arranged on the inner surface of the vertical frame of the door edge frame, and a predetermined heat insulating layer is provided between the frame reinforcing metal fitting and the gasket leg portion arranged on the outer periphery of the inner frame, The frame reinforcing bracket is formed to have a substantially U-shaped cross section, and a piece of the frame reinforcing bracket on the door exterior plate side is longer than a portion of the frame reinforcing bracket on the gasket side .

これにより、ガスケットの脚部と枠補強金具との間の断熱層がガスケットから補強金具への低温リークを抑制し、枠補強金具低温化による扉縁枠表面での結露を防止できるとともに、扉縁枠内には枠補強金具が装着してあるので扉反り変形も防止することができる。 As a result, the heat insulation layer between the gasket leg and the frame reinforcing bracket suppresses low-temperature leakage from the gasket to the reinforcing bracket, prevents condensation on the door edge frame surface due to the low temperature of the frame reinforcing bracket, Since the frame reinforcing metal fitting is mounted in the frame, it is possible to prevent door warpage deformation.

本発明は、扉の反り変形を防止すると同時に扉縁枠表面の結露発生も防止することができ、高品質の冷蔵庫を提供することができる。 The present invention can prevent the warp deformation of the door and at the same time prevent the occurrence of condensation on the surface of the door edge frame, and can provide a high quality refrigerator.

本発明の実施の形態１における冷蔵庫の外観斜視図External appearance perspective view of the refrigerator in Embodiment 1 of this invention 同冷蔵庫の概略断面図Schematic sectional view of the refrigerator 同冷蔵庫の扉の一つを示す斜視図Perspective view showing one of the doors of the refrigerator 同扉を内面側から見た斜視図Perspective view of the same door viewed from the inside 同扉の分解斜視図Exploded perspective view of the door 同図３のＡ−Ａ断面図AA sectional view of FIG. 同冷蔵庫の観音開き扉の図３Ｂ−Ｂ線相当断面図3B-B equivalent sectional view of the double door of the refrigerator 同図７の要部拡大断面図7 is an enlarged cross-sectional view of the main part 従来の冷蔵庫における扉の分解斜視図The exploded perspective view of the door in the conventional refrigerator 従来の他の冷蔵庫における扉の断面図Sectional view of the door in another conventional refrigerator 従来の更に他の冷蔵庫における扉の断面図Sectional view of the door in yet another conventional refrigerator

第１の発明は、冷蔵庫本体と、前記冷蔵庫本体の貯蔵室を開閉する断熱性の扉とを備え、前記扉は、その扉前面を構成する扉外装板と、扉外装板の内側に位置する内フレームと、前記扉外装板と内フレームとの間の外周面を構成する扉縁枠と、前記扉外装板と内フレームと扉縁枠との間の空間に充填発泡させた発泡断熱材で構成し、前記扉縁枠の縦枠内面には枠補強金具を配置するとともに前記枠補強金具と前記内フレーム外周に配置したガスケット脚部との間に所定の断熱層を設け、前記枠補強金具は断面略コ字状に形成され、前記枠補強金具の前記扉外装板側の片部は前記枠補強金具のガスケット側の片部より長い寸法とした構成としてある。 A first aspect of the present invention is a cold Zoko body, and a thermally insulating door for opening and closing the storage compartment of the refrigerator body, the door, the door exterior plate constituting the door front face, on the inside of the door exterior plate Foam insulation that fills and foams the space between the door outer plate, the inner frame, and the door edge frame, the inner frame located, the door edge frame that forms the outer peripheral surface between the door outer plate and the inner frame A frame reinforcing bracket is disposed on the inner surface of the vertical frame of the door edge frame, and a predetermined heat insulating layer is provided between the frame reinforcing bracket and a gasket leg disposed on the outer periphery of the inner frame, The reinforcing bracket is formed in a substantially U-shaped cross section, and the one part on the door exterior plate side of the frame reinforcing bracket is longer than the one on the gasket side of the frame reinforcing bracket .

第２の発明は、第１の発明において、前記扉縁枠に装着した前記ガスケット側の片部は前記ガスケット脚部の頂点部よりも扉縁枠側までの位置として、前記ガスケット脚部と前記枠補強金具との間に発泡断熱材による断熱層を形成した構成としてある。 The second invention according to the first invention, the gasket side piece portion was charged wear the Tobiraenwaku as position until the door edge frame side from the apex portion of the gasket leg, said gasket legs it is constituted that forms an insulating layer by foam insulation between said frame reinforcement bracket.

これにより、ガスケットの脚部と枠補強金具との間の寸法が大きくなってこれらの間に発泡ウレタンの断熱層が形成され、ガスケットの低温が補強金具にリークするのを抑制することになり、枠補強金具低温化による扉縁枠表面での結露を防止できるとともに、扉縁枠内には略Ｌ字状として強度向上させた枠補強金具が位置しているので扉反り変形もより確実に防止することができる。 Thereby, the dimension between the leg portion of the gasket and the frame reinforcing metal fitting is increased, and a heat insulating layer of urethane foam is formed between them, and the low temperature of the gasket is suppressed from leaking to the reinforcing metal fitting, The frame reinforcement bracket can prevent condensation on the surface of the door edge frame due to low temperature, and the door reinforcement frame has a substantially L-shaped frame reinforcement bracket for improved strength, preventing door warp deformation more reliably. can do.

第３の発明は、第１または第２の発明において、前記ガスケット側の片部は前記ガスケット脚部の頂点部よりも前記扉縁枠側までの寸法とする構成としてある。 The third invention is the first or second aspect of the invention, the support sections of the gasket side is a configuration than the top portion of the gasket leg and dimensions to the Tobiraen frame side.

これにより、枠補強金具はガスケット側の端縁に設けたＬ字状片部と扉外装板側のＬ字状片部により断面略コ字状となってその強度が向上し、しかもガスケット側Ｌ字状片部の長さが短いことによる強度確保不足をこれよりも長い寸法の扉外装板側Ｌ字状片部が補うことになって枠補強金具の強度を十分なものとすることができ、ガスケットの脚部とＬ字状片部との間の冷熱リーク抑制を良好なものとしつつ扉反り変形を確実に防止することができる。 As a result, the frame reinforcing bracket has a substantially U-shaped cross section due to the L-shaped piece provided on the gasket side edge and the L-shaped piece on the door exterior plate side, and its strength is improved. The strength of the frame reinforcing bracket can be made sufficient by compensating for the lack of strength due to the short length of the letter-shaped piece by the L-shaped piece of the door exterior plate side having a longer dimension. Further, it is possible to reliably prevent the warpage of the door from being deformed while improving the suppression of the heat leakage between the leg portion of the gasket and the L-shaped piece portion.

第４の発明は、第１から第３のいずれか１項の発明において、前記枠補強金具の扉外装板側の片部は前記扉外装板側に向けて折り曲げ形成したリブを有する構成としてある。 The fourth invention is the the first invention of the third any one of the support sections of the door exterior plate side of the frame reinforcing brackets are configured to have a rib which is formed bent toward the door exterior plate side .

これにより、枠補強金具はその長手方向に折り曲げ部をＬ字状片部とリブとの２箇所以上持つことになって長手方向の剛性が更に向上し、扉の縦方向の変形を強力に防止できる。特に冷蔵庫の大型化に伴い扉も大型化しているものにあっては、扉の熱収縮による変形はガラス板等で構成される扉外装板と樹脂で構成される内フレーム及び発泡断熱材の材料との熱収縮率差から扉外装板に近いほど変形量が多く曲げモーメントがかかりやすいので、扉外装板に近い方にリブを設けたことでより効率よく扉の変形を防止でき、効果的である。 As a result, the frame reinforcing bracket has two or more bent portions in the longitudinal direction of the L-shaped piece portion and the rib, further improving the rigidity in the longitudinal direction and strongly preventing the door from being deformed in the longitudinal direction. it can. Especially for doors that have become larger due to the size of refrigerators, the deformation of the door due to thermal shrinkage is made of a door exterior plate made of glass, etc., an inner frame made of resin, and materials for foam insulation. The closer to the door exterior plate, the greater the amount of deformation and the greater the bending moment is likely to be due to the difference in heat shrinkage between the door and the door. is there.

第５の発明は、第１から第４のいずれか１項の発明において、前記扉は前記扉外装板と前記内フレームとの間の発泡断熱材中に真空断熱板を備えた構成としてある。 A fifth invention, in the first invention of the fourth any one of, the door a configuration equipped with vacuum insulation panels in the foam insulation between the inner frame and the door exterior plate.

これにより、扉の断熱効果を高めつつ真空断熱板による補強効果も加わって扉の反り変形をより一層効果的に防止出きると同時に、枠補強金具のガスケット側、すなわち内フレーム側のＬ字状片部幅寸法は短いものであるから、このＬ字状片部の端縁と真空断熱板と
の間の間隔を十分確保して発泡断熱材の充填流れを良好なものとすることができ、扉縁枠付近の発泡断熱材の充填密度を良好な状態にして扉縁枠部分の断熱性を大幅に向上させ、真空断熱板による断熱性アップと相まって扉縁枠部分での結露防止効果を高めることができる。 This enhances the heat insulation effect of the door while also adding the reinforcement effect of the vacuum heat insulation plate to prevent the warp deformation of the door more effectively. At the same time, the L-shaped piece on the gasket side of the frame reinforcing bracket, that is, the inner frame side Since the part width dimension is short, the space between the edge of the L-shaped piece part and the vacuum heat insulating plate can be sufficiently secured, and the filling flow of the foam heat insulating material can be made good, and the door Improve the dew condensation prevention effect at the door frame by combining the foam insulation in the vicinity of the frame with a good condition and greatly improving the heat insulation of the door frame by combining the heat insulation with the vacuum insulation plate. Can do.

第６の発明は、第１〜第５の発明において、扉は扉外装板を透明板、扉縁枠を樹脂で構成するとともに、前記扉外装板を発泡断熱材で接着一体化した構成としてある。 The sixth invention is the first to fifth inventions, wherein the door is configured such that the door exterior plate is made of a transparent plate, the door edge frame is made of resin, and the door exterior plate is bonded and integrated with a foam heat insulating material. .

これにより、透明板を用いて扉外観を質感の高い良好なものとすることができるとともに、発泡断熱材による透明前板の接着一体化によって透明板の周縁部をそのまま露出状態とし透明板挿入保持部のない意匠性の更に高いものとして、なおかつ扉反り変形や結露発生のない冷蔵庫とすることができる。 As a result, the exterior appearance of the door can be improved with a high quality by using a transparent plate, and the peripheral portion of the transparent plate is exposed as it is by the adhesive integration of the transparent front plate with foam insulation, and the transparent plate is inserted and held. As a further high design property without a part, it is possible to provide a refrigerator free from warpage deformation and condensation.

以下、本発明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、この実施の形態では扉外装板としてガラス板等の透明板を用いたものを例にして説明するが、これによって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, the door exterior plate using a transparent plate such as a glass plate will be described as an example. However, the present invention is not limited thereto.

（実施の形態１）
図１は本発明の実施の形態１における冷蔵庫の外観斜視図、図２は同冷蔵庫の概略断面図、図３は同冷蔵庫の扉の一つを示す斜視図、図４は同扉を内面側から見た斜視図、図５は同扉の分解斜視図、図６は同図３のＡ−Ａ断面図、図７は同冷蔵庫の観音開き扉の図３Ｂ−Ｂ線相当断面図、図８は同図７の要部拡大断面図同冷蔵庫の概略断面図である。 (Embodiment 1)
1 is an external perspective view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a schematic sectional view of the refrigerator, FIG. 3 is a perspective view showing one of the doors of the refrigerator, and FIG. 5 is an exploded perspective view of the door, FIG. 6 is a sectional view taken along the line AA of FIG. 3, FIG. 7 is a sectional view corresponding to FIG. 3B-B of the double door of the refrigerator, and FIG. The principal part expanded sectional view of FIG. 7 is a schematic sectional view of the refrigerator.

図１、図２において、冷蔵庫本体１は、前方に開口する金属製（例えば鉄板）の外箱２と、硬質樹脂製（例えばＡＢＳ）の内箱３と、これら外箱２と内箱３との間に発泡充填した硬質の発泡ウレタン４からなる。上記冷蔵庫本体１はその内部に、冷蔵室５と、冷蔵室５の下に位置する切替室６及び切替室６に並設した製氷室７と、切替室６及び製氷室７の下部に位置する冷凍室８と、冷凍室８の下部に位置する野菜室９とを有する。また、前記冷蔵室５の前面は、例えば観音開き式の扉１０，１０により開閉自在とし、切替室６及び製氷室７と冷凍室８と野菜室９の前面部は引き出し式の扉１１，１２，１３，１４によって開閉自在としてある。 1 and 2, the refrigerator body 1 includes a metal (for example, iron plate) outer box 2 that opens forward, an inner box 3 that is made of hard resin (for example, ABS), an outer box 2, and an inner box 3. It consists of the hard foaming urethane 4 foam-filled between. The refrigerator main body 1 is located inside the refrigerator compartment 5, the switching chamber 6 located below the refrigerator compartment 5, the ice making chamber 7 juxtaposed to the switching chamber 6, and the switching chamber 6 and the lower part of the ice making chamber 7. It has a freezer compartment 8 and a vegetable compartment 9 located below the freezer compartment 8. The front side of the refrigerator compartment 5 can be opened and closed by, for example, double doors 10 and 10, and the front part of the switching room 6, ice making room 7, freezer room 8, and vegetable room 9 are drawer type doors 11, 12, 13 and 14 can be opened and closed freely.

冷蔵庫本体１の背面には冷却室１６があり、冷気を生成する冷却器１７と、冷気を各室に供給する送風ファン１８とが設けてある。また、上記冷蔵庫本体１の本体天面奥部には圧縮機１９が設けてあり、コンデンサ（図示せず）と、放熱用の放熱パイプ２０と、キャピラリーチューブ２１と、前記した冷却器１７とを順次環状に接続してなる冷凍サイクルに冷媒を封入し、冷却運転を行うように構成してある。 There is a cooling chamber 16 on the back surface of the refrigerator body 1, and a cooler 17 that generates cool air and a blower fan 18 that supplies the cool air to each chamber are provided. In addition, a compressor 19 is provided at the back of the top of the main body of the refrigerator body 1, and a condenser (not shown), a heat radiating pipe 20, a capillary tube 21, and the cooler 17 described above are provided. A refrigerant is enclosed in a refrigeration cycle that is sequentially connected in an annular manner, and a cooling operation is performed.

ここで、上記各扉１０〜１４は冷蔵庫本体１と同様硬質のウレタンを充填発泡させて断熱性を持たせて長方形に形成してあり、更に意匠性を向上させるべくその前面外装板をガラス板等の透明前板で構成してある。 Here, each of the doors 10 to 14 is formed into a rectangular shape by filling and foaming hard urethane like the refrigerator main body 1 so as to have a heat insulation property, and the front exterior plate is a glass plate in order to further improve the design. It consists of a transparent front plate.

以下、観音開き式の扉１０の場合を例にしてその構成について図３〜図７を用いて説明する。なお、扉１０以外の扉１１〜１４も同様の構成である。 Hereinafter, the configuration of the double door 10 will be described with reference to FIGS. The doors 11 to 14 other than the door 10 have the same configuration.

図３〜図７において、２３は冷蔵庫本体１の内側に位置することになる内フレームで、例えばＡＢＳ樹脂で形成してある。２４はこの内フレーム２３の周端面に結合固定した扉縁枠で、同じくＡＢＳ樹脂で形成してある。２５は前記内フレーム２３を覆うようにその扉縁枠２４に積層配置した扉外装板で、この実施の形態では光沢のある強化ガラス板（以下、扉外装ガラス板と称す）で形成してある。 3 to 7, reference numeral 23 denotes an inner frame which is located inside the refrigerator main body 1, and is formed of, for example, ABS resin. Reference numeral 24 denotes a door edge frame which is fixedly coupled to the peripheral end surface of the inner frame 23, which is also formed of ABS resin. Reference numeral 25 denotes a door exterior plate laminated on the door edge frame 24 so as to cover the inner frame 23, and in this embodiment, it is formed of a glossy tempered glass plate (hereinafter referred to as a door exterior glass plate). .

この扉外装ガラス板２５は図５に示すようにその内面に接着剤２６を介して樹脂フィルム２７が貼り付けてあり、この樹脂フィルム２７にヘアーラインのような金属調模様からなる着色層２８が形成してある。これによって、前記扉外装ガラス板２５は、あたかも着色層付きの扉外装ガラス板となる。前記樹脂フィルム２７はこの実施の形態では透明性が高く機械的強度の高いポリエチレンテレフタレートを用いている。 As shown in FIG. 5, a resin film 27 is attached to the inner surface of the door exterior glass plate 25 via an adhesive 26, and a colored layer 28 having a metallic pattern such as a hairline is formed on the resin film 27. It is. Thereby, the door exterior glass plate 25 becomes a door exterior glass plate with a colored layer. In this embodiment, the resin film 27 is made of polyethylene terephthalate having high transparency and high mechanical strength.

２９は前記扉外装ガラス板２５の樹脂フィルム２７側の面と内フレーム２３と扉縁枠２４との間の空間に充填発泡させた硬質のウレタン等の発泡断熱材で、発泡によって内フレーム２３及び扉縁枠２４とともに前記扉外装ガラス板２５内面の樹脂フィルム２７に接着し、当該樹脂フィルム２７を介して扉外装ガラス板２５を接着保持している。 29 is a foam heat insulating material such as hard urethane filled and foamed in the space between the resin film 27 side of the door exterior glass plate 25 and the inner frame 23 and the door edge frame 24. The door exterior glass plate 25 is bonded to the resin film 27 on the inner surface of the door exterior glass plate 25 together with the door edge frame 24, and the door exterior glass plate 25 is bonded and held via the resin film 27.

また、３０は前記内フレーム２３と扉外装ガラス板２５との間のほぼ全域わたって配置した真空断熱板である。 Reference numeral 30 denotes a vacuum heat insulating plate disposed almost over the entire area between the inner frame 23 and the door exterior glass plate 25.

さらに３１は扉外周内面部に装着したガスケットで、図８に示すようにその脚部３２を内フレーム２３内側の発泡断熱材部分まで突入させて成した凹部２３ａに圧入し装着してある。 Further, 31 is a gasket attached to the inner peripheral portion of the outer periphery of the door. As shown in FIG. 8, the leg portion 32 is press-fitted into a recess 23a formed by protruding into the foamed heat insulating material portion inside the inner frame 23.

なお、図中３３は観音開き式扉の扉１０同士間を覆う回転式仕切板で、いずれか一方の扉端面に回転自在に設けてあり、扉閉成時には前記ガスケット３１に圧接して冷蔵室５内の気密を保っている。 In the figure, reference numeral 33 denotes a rotary partition plate that covers the doors 10 of the double doors, and is provided rotatably on one of the door end faces. When the door is closed, it is in pressure contact with the gasket 31 and stored in the refrigerator compartment 5. Keeping the airtight inside.

ここで、上記のように構成した扉１０はその両側の扉縁枠２４の内面に枠補強金具３４が装着してある。この枠補強金具３４は図８に示すようにこの実施の形態では断面略コ字状に形成してその両端縁にＬ字状片部３５，３６が形成してあり、前記ガスケット３１側に位置するＬ字状片部３５の端縁３５ａは前記ガスケット３１の脚部３２の頂点３２ａよりも扉縁枠２４側までの位置としてその幅寸法ｌを小さくし、前記ガスケッ３１の脚部３２と枠補強金具３４のＬ字状片部３５の端縁３５ａとの間に発泡断熱材２９による幅広の断熱層３７を形成した構成としてある。また、このＬ字状片部３５の端縁３５ａと対応する部分に前記した真空断熱板３０が位置するが、この真空断熱板３０の端縁３０ａとの間の間隔Ｔも広いものとなっている。更にこの枠補強金具３４の扉外装ガラス板２５側に位置するＬ字状片部３６はその幅寸法Ｌをガスケット３１側のＬ字状片部３５の幅寸法ｌより長く設定し、更にその端縁から扉外装ガラス板２５側に向かって折り曲げ形成したリブ３８が設けてある。 Here, the door 10 configured as described above has frame reinforcing brackets 34 mounted on the inner surfaces of the door edge frames 24 on both sides thereof. As shown in FIG. 8, the frame reinforcing bracket 34 is formed in a substantially U-shaped cross section in this embodiment, and L-shaped pieces 35 and 36 are formed at both end edges thereof. The edge 35a of the L-shaped piece 35 to be formed is positioned so as to be closer to the door edge frame 24 than the apex 32a of the leg 32 of the gasket 31, so that the width dimension l is reduced. A wide heat insulating layer 37 made of a foam heat insulating material 29 is formed between the edge 35 a of the L-shaped piece 35 of the reinforcing metal fitting 34. Further, the vacuum heat insulating plate 30 described above is located at a portion corresponding to the edge 35a of the L-shaped piece portion 35, but the interval T between the edge 30a of the vacuum heat insulating plate 30 is wide. Yes. Further, the L-shaped piece portion 36 located on the door exterior glass plate 25 side of the frame reinforcing bracket 34 is set to have a width dimension L longer than the width dimension l of the L-shaped piece portion 35 on the gasket 31 side. Ribs 38 formed by bending from the edge toward the door exterior glass plate 25 side are provided.

なお、本実施の形態においては、前記扉外装ガラス板２５は発泡断熱材２９によって接着一体化しているので、その外周部はこの種ガラス板を用いた場合に用いられるガラス板挿入枠等で覆うことなくそのまま露出させた形態としてある。 In the present embodiment, since the door exterior glass plate 25 is bonded and integrated by the foam heat insulating material 29, the outer peripheral portion thereof is covered with a glass plate insertion frame or the like used when this kind of glass plate is used. It is a form that is exposed as it is.

また、前記扉外装ガラス板２５はその外周部をあらかじめ扉外側に反らせた状態で発泡断熱材２９を充填発泡させて接着一体化してある。 In addition, the door exterior glass plate 25 is filled and foamed with a foam heat insulating material 29 in a state where the outer peripheral portion of the door exterior glass plate is bent in advance to the door outer side, and is bonded and integrated.

更に、発泡断熱材２９はその外周部の発泡密度を中央部分の発泡密度より高くして、外周部の収縮度合いが中央部分の収縮度合いより少なくなる構成としてある。この発泡密度差は、例えば、内フレーム２３の発泡ウレタン外周部分に相当する位置に空気抜き孔を設けて、この空気抜き孔部分でウレタンがコア発泡するようにすれば達成できる。 Further, the foam heat insulating material 29 is configured such that the foam density at the outer peripheral portion is higher than the foam density at the central portion, and the contraction degree of the outer peripheral portion is less than the contraction degree of the central portion. This difference in foaming density can be achieved, for example, by providing an air vent hole at a position corresponding to the outer peripheral portion of the urethane foam of the inner frame 23 and urethane foaming the core at the air vent hole portion.

以上のように構成した上記冷蔵庫の扉１０は、扉縁枠２４の内面に装着した枠補強金具３４によって補強され、発泡断熱材２９の成型時の熱収縮や冷蔵庫使用による経年的な熱
収縮があっても扉１０の反り変形を抑制することができる。 The refrigerator door 10 configured as described above is reinforced by a frame reinforcing metal fitting 34 attached to the inner surface of the door frame 24, and heat shrinkage during molding of the foam heat insulating material 29 and aged heat shrinkage due to use of the refrigerator. Even if it exists, the curvature deformation of the door 10 can be suppressed.

ここで、上記枠補強金具３４はこの実施の形態ではガスケット３１側の幅寸法ｌの小さいＬ字状片部３５とこれよりも幅寸法Ｌが大きい扉外装ガラス板２５側に設けたＬ字状片部３６とによって枠補強金具全体が断面略コ字状となっているからその剛性は高く、扉１０の反り変形を効果的に抑制することができる。 Here, in this embodiment, the frame reinforcing metal fitting 34 has an L-shaped piece portion 35 having a small width dimension l on the gasket 31 side and an L-shape provided on the door exterior glass plate 25 side having a larger width dimension L than this. Since the entire frame reinforcing bracket is substantially U-shaped in cross section with the piece 36, the rigidity thereof is high, and the warp deformation of the door 10 can be effectively suppressed.

更にこの実施の形態では前記ガスケット３１と反対の扉外装ガラス板２５側のＬ字状片部３６はガスケット３１側のＬ字状片部３５の幅寸法ｌより長くしてあるから、ガスケット３１側のＬ字状片部３５の長さが短いことによる強度確保不足をこれよりも長い寸法の扉外装ガラス板２５側のＬ字状片部３６が補うかたちとなって枠補強金具３４の強度を十分なものとすることができ、扉反り変形をより確実に防止することができる。 Further, in this embodiment, the L-shaped piece 36 on the door exterior glass plate 25 side opposite to the gasket 31 is longer than the width dimension l of the L-shaped piece 35 on the gasket 31 side. The L-shaped piece portion 35 on the side of the door exterior glass plate 25 having a longer dimension compensates for the lack of strength due to the length of the L-shaped piece portion 35 being short. It can be sufficient, and door warpage deformation can be prevented more reliably.

更に、上記枠補強金具３４はその扉外装ガラス板２５側のＬ字状片部３６の端縁に扉外装ガラス板２５側に向けて折り曲げ形成したリブ３８を設けてあるから、枠補強金具３４はその長手方向に折り曲げ部をＬ字状片部３６とリブ３８との２箇所以上持つことになって長手方向の剛性が更に向上し、扉１０の縦方向の変形を強力に防止できる。特に冷蔵庫の大型化に伴い扉も大型化しているものにあっては、扉１０の熱収縮による変形はガラス板等で構成される扉外装ガラス板２５と樹脂で構成される内フレーム２３及び発泡断熱材２９の材料との熱収縮率差から扉外装ガラス板２５に近いほど変形量が多く曲げモーメントがかかりやすいので、扉外装ガラス板２５に近い方にリブ３８を設けたことでより効率よく扉１０の変形を防止でき、効果的である。 Further, the frame reinforcing bracket 34 is provided with ribs 38 formed by bending toward the door exterior glass plate 25 side at the edge of the L-shaped piece 36 on the door exterior glass plate 25 side. Has two or more bent portions in the longitudinal direction of the L-shaped piece portion 36 and the rib 38, the rigidity in the longitudinal direction is further improved, and the longitudinal deformation of the door 10 can be strongly prevented. In particular, in the case where the door is also enlarged with an increase in the size of the refrigerator, the door 10 is deformed due to thermal contraction by the door exterior glass plate 25 made of a glass plate or the like, the inner frame 23 made of a resin, and foaming. The closer to the door exterior glass plate 25, the more the deformation amount and the bending moment are more likely to be applied because of the difference in thermal contraction rate with the material of the heat insulating material 29. The deformation of the door 10 can be prevented and is effective.

一方、上記枠補強金具３４は冷蔵庫本体１との間の気密性を確保するガスケット３１側のＬ字状片部３５の端縁３５ａはガスケット３１の脚部３２の頂点３２ａよりも扉縁枠２４側までにとどめていてこれら両者間には発泡断熱材２９による比較的幅の広い断熱層３７が形成されているから、ガスケット３１の脚部３２が冷蔵室内冷気によって冷却されていて低温化していても、Ｌ字状片部３５、すなわち枠補強金具３４への低温リークを大幅に抑制することができる。従って、枠補強金具３４の低温化による高温高湿時の扉縁枠２４端面での結露発生を防止することができる。 On the other hand, the edge 35a of the L-shaped piece 35 on the gasket 31 side that secures airtightness between the frame reinforcing bracket 34 and the refrigerator main body 1 is a door edge frame 24 than the apex 32a of the leg 32 of the gasket 31. Since the heat insulating layer 37 having a relatively wide width is formed between the two by the foam heat insulating material 29, the leg portion 32 of the gasket 31 is cooled by the cold air in the refrigerator compartment and the temperature is lowered. Moreover, the low-temperature leak to the L-shaped piece part 35, ie, the frame reinforcement metal fitting 34, can be suppressed significantly. Accordingly, it is possible to prevent the occurrence of condensation on the end face of the door edge frame 24 at the time of high temperature and high humidity due to the low temperature of the frame reinforcing bracket 34.

上記枠補強金具３４のガスケット３１側のＬ字状片部３５はこの実施の形態では強度向上のために設けているが、これは廃止して平坦なままとし扉外装ガラス板２５側のみにＬ字状片部３６を設けた構成としてもよく、これによってガスケット３１の脚部３２と枠補強金具３４との間の断熱層３７の幅寸法をさらに大きなものとすることができて冷熱リークをより効果的に防止でき、結露防止効果を向上させることができる。 The L-shaped piece 35 on the gasket 31 side of the frame reinforcing bracket 34 is provided for improving the strength in this embodiment. However, this is abolished and remains flat, and only on the door exterior glass plate 25 side. A character-shaped piece portion 36 may be provided, whereby the width dimension of the heat insulating layer 37 between the leg portion 32 of the gasket 31 and the frame reinforcing metal fitting 34 can be further increased, thereby further reducing the heat leak. It can prevent effectively and can improve the dew condensation prevention effect.

また、この実施の形態の扉１０は扉外装ガラス板２５と内フレーム２３との間の発泡断熱材２９中に真空断熱板３０を備えた構成としてあるから、扉１０の断熱効果を高めつつ真空断熱板３０が持つ剛性によって扉の反り変形をより一層効果的に防止出きる。またこの枠補強金具３４のガスケット３１側、すなわち内フレーム２３側のＬ字状片部３５の幅寸法は短いものであるから、このＬ字状片部３５の端縁３５ａと真空断熱板３０との間の間隔Ｔを十分確保して発泡断熱材２９の充填流れを良好なものとすることができ、扉縁枠２４内面付近の発泡断熱材の充填密度を良好な状態にして扉縁枠２４部分の断熱性を大幅に向上させ、真空断熱板３０による断熱性アップと相まって扉縁枠部分での結露防止効果を高めることができる。 Moreover, since the door 10 of this embodiment is configured to include the vacuum heat insulating plate 30 in the foam heat insulating material 29 between the door exterior glass plate 25 and the inner frame 23, the door 10 is vacuum while enhancing the heat insulating effect of the door 10. The rigidity of the heat insulating plate 30 can prevent the warp deformation of the door more effectively. Further, since the width dimension of the L-shaped piece portion 35 on the gasket 31 side of the frame reinforcing bracket 34, that is, the inner frame 23 side is short, the edge 35a of the L-shaped piece portion 35 and the vacuum heat insulating plate 30 A sufficient space T can be ensured between the two and the filling flow of the foam heat insulating material 29 can be made good, and the filling density of the foam heat insulating material in the vicinity of the inner surface of the door edge frame 24 can be made to be in a good state. The heat insulating property of the portion can be greatly improved, and the effect of preventing condensation at the door edge frame portion can be enhanced in combination with the heat insulating property improvement by the vacuum heat insulating plate 30.

なお、この実施の形態では前記扉１０はその前面を構成する扉外装ガラス板２５が前記発泡断熱材２９の熱収縮に抗して平面を維持するようにあらかじめ逆方向にそらせた状態で発泡断熱材を充填発泡硬化させているので、この点からも発泡断熱材２９の熱収縮によ
る扉外装ガラス板２５の反り変形等を防止して平面を保つことができ、より確実に扉反り変形を防止し、かつ、質感の高い冷蔵庫用扉とすることができる。 In this embodiment, the door 10 is foam-insulated with the door exterior glass plate 25 constituting the front face thereof being deflected in the reverse direction in advance so as to maintain a flat surface against thermal contraction of the foam insulation 29. Since the material is filled and cured by foaming, it is possible to prevent warp deformation of the door exterior glass plate 25 due to thermal contraction of the foam heat insulating material 29 and keep the flat surface from this point, and more reliably prevent warpage deformation of the door. And it can be set as the door for refrigerators with a high texture.

また、発泡断熱材２９はその発泡密度を中央部分より外周部分のほうが高く（密）なるようにしてある。したがって、発泡断熱材２９の外周部は気泡密度が高い分発泡断熱材を構成するウレタンそのものの量が多くなっている。よって、発泡断熱材２９の外周部分の熱収縮変形は中央部分の熱収縮変形に比べ少ないものとなるから、発泡断熱材全体で見た場合の熱収縮変形は発泡断熱材全面に亘ってほぼ同じ程度となって外周部が反ったような形になりにくい。したがって、扉成形時に扉外装ガラス板２５の反り量を大きくしなくてもその反りが戻ったときには扉外装ガラス板２５は略平面状態とすることができ、その後の発泡断熱材の熱収縮度合いも少なくなるから、この点からも扉外装ガラス板２５の外周部が熱収縮によって反ったような形で変形するのが抑制されることになり、より平坦なものとすることができる。 The foam heat insulating material 29 has a foam density higher (dense) in the outer peripheral portion than in the central portion. Therefore, the outer peripheral portion of the foam heat insulating material 29 has a larger amount of urethane constituting the foam heat insulating material because of the higher cell density. Therefore, the heat shrink deformation of the outer peripheral portion of the foam heat insulating material 29 is less than the heat shrink deformation of the central portion. Therefore, the heat shrink deformation when viewed as a whole of the foam heat insulating material is substantially the same over the entire surface of the foam heat insulating material. It is difficult to form a shape that the outer periphery is warped. Therefore, the door exterior glass plate 25 can be in a substantially flat state when the warpage is returned without increasing the warpage amount of the door exterior glass plate 25 at the time of door molding. Therefore, it is possible to suppress the deformation of the outer peripheral portion of the door exterior glass plate 25 in the form of warping due to thermal contraction, and the flatness can be further increased.

また、上記のように反り変形を防止した扉外装ガラス板２５は発泡断熱材２９の接着力によって接着保持してガラス板を用いた場合に必要とされるガラス板挿入部等を廃止しその周縁部をそのまま露出状態としているので、ガラス板挿入部の存在によって意匠性を損なうことなく、全面フラット感のあるすっきりとした外観にすることができ、扉反り変形や結露発生を抑えつつ意匠性の高い冷蔵庫とすることができる。 In addition, the door exterior glass plate 25 that prevents warping deformation as described above eliminates the glass plate insertion portion and the like that are required when the glass plate is used by being adhered and held by the adhesive force of the foam heat insulating material 29 and its peripheral edge. Because the part is exposed as it is, the presence of the glass plate insertion part makes it possible to achieve a clean appearance with a flat feeling on the entire surface without impairing the design, while preventing the warpage deformation and condensation from occurring. It can be a high refrigerator.

さらに、この冷蔵庫の扉１０は、ヘアーラインのような金属調模様からなる着色層２８が扉外装ガラス板２５及び樹脂フィルム２７からなる透明層の内側に位置するため、着色の色に深みが加わり、その意匠性は金属製あるいは樹脂製の塗装前板に比べると大きく向上する。特にこの実施の形態では前記着色層２８は樹脂フィルム２７に形成しているので、ローラ等によって形成することができ、扉外装ガラス板に直接着色層をシルク印刷するものでは不良率が高くて実質的には得られなかったようなヘアーライン等の精細な模様も形成できて、その意匠性を格段に向上させることができる。 Furthermore, the refrigerator door 10 has a colored layer 28 made of a metal-like pattern such as a hairline located inside the transparent layer made of the door exterior glass plate 25 and the resin film 27. The design is greatly improved compared to a pre-painted plate made of metal or resin. In particular, in this embodiment, since the colored layer 28 is formed on the resin film 27, it can be formed with a roller or the like, and a silk layer directly printed on the door exterior glass plate has a high defect rate and is substantially reduced. As a result, a fine pattern such as a hairline that could not be obtained can also be formed, and the design can be remarkably improved.

以上、本発明の主な実施形態を説明したが、上記実施の形態は本発明を実施するうえでの一例として示したものであり、本発明の目的を達成する範囲内で種々変更可能であることは言うまでもない。 As mentioned above, although main embodiment of this invention was described, the said embodiment was shown as an example in implementing this invention, and can be variously changed within the range which achieves the objective of this invention. Needless to say.

例えば、本実施の形態ではガスケット３１の脚部３２と枠補強金具３４との間の断熱層３７は枠補強金具３４のガスケット側端部の幅寸法を小さくしてそれらの間に存在する発泡断熱材２９の厚み幅を大きくすることにより形成したものを例示したが、ガスケット３１の脚部３２と枠補強金具３４との間に断熱性の高い部材、例えば真空断熱板を介在させて断熱層としてもよいものである。 For example, in the present embodiment, the heat insulating layer 37 between the leg portion 32 of the gasket 31 and the frame reinforcing bracket 34 is formed by reducing the width dimension of the end portion on the gasket side of the frame reinforcing bracket 34 so that the foam insulation is present between them. Although the thing formed by enlarging the thickness width of the material 29 was illustrated, as a heat insulation layer, a member with high heat insulation, for example, a vacuum heat insulation board, is interposed between the leg part 32 of the gasket 31, and the frame reinforcement metal fitting 34. Is also good.

また、ガスケット３１の脚部３２との間に断熱層３７を形成する枠補強金具３４のガスケット側端部は実施の形態でも述べたようにＬ字状片部３５を廃止して平坦面のままとしてもよいものである。 Further, as described in the embodiment, the gasket-side end portion of the frame reinforcing bracket 34 that forms the heat insulating layer 37 between the leg portions 32 of the gasket 31 is a flat surface by eliminating the L-shaped piece portion 35. It is good.

さらに、扉１０を構成する扉外装板もガラス板ではなく金属板、或いは透明樹脂板であってもよく、透明樹脂前板にすれば高い質感を持たせつつ軽量化による接着強度の更なる保障が可能となり、しかも低コスト化も図ることができる。 Further, the door exterior plate constituting the door 10 may be a metal plate or a transparent resin plate instead of a glass plate, and if it is made of a transparent resin front plate, further guarantee of adhesive strength due to weight reduction while having a high texture. In addition, the cost can be reduced.

以上のように本発明は、扉の反り変形を防止すると同時に扉縁枠表面の結露発生も防止して、冷蔵庫の品質を高めることができ、一般用はもちろん業務用の冷蔵庫やワインクーラー等にも幅広く適用できる。 As described above, the present invention prevents the warpage deformation of the door and at the same time prevents the occurrence of condensation on the surface of the door edge frame, thereby improving the quality of the refrigerator, and can be used for commercial refrigerators, wine coolers, etc. Is also widely applicable.

１冷蔵庫本体
２外箱
３内箱
４発泡ウレタン
５冷蔵室
６切替室
７製氷室
８冷凍室
９野菜室
１０，１１，１２，１３，１４扉
１６冷却室
１７冷却器
１８送風ファン
１９圧縮機
２０放熱パイプ
２１キャピラリーチューブ
２３内フレーム
２４扉縁枠
２５扉外装板（扉外装ガラス板）
２９発泡断熱材
３０真空断熱板
３１ガスケット
３２脚部
３２ａ頂点
３３回転式仕切板
３４枠補強金具
３５、３６Ｌ字状片部
３７断熱層 DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 4 Urethane foam 5 Refrigeration room 6 Switching room 7 Ice making room 8 Freezing room 9 Vegetable room 10, 11, 12, 13, 14 Door 16 Cooling room 17 Cooler 18 Air blower fan 19 Compressor 20 Radiating pipe 21 Capillary tube 23 Inner frame 24 Door edge frame 25 Door exterior plate (door exterior glass plate)
29 Foam insulation 30 Vacuum insulation plate 31 Gasket 32 Leg 32a Vertex 33 Rotary partition plate 34 Reinforcement bracket 35, 36 L-shaped piece 37 Heat insulation layer

Claims

冷蔵庫本体と、前記冷蔵庫本体の貯蔵室を開閉する断熱性の扉とを備え、前記扉は、その扉前面を構成する扉外装板と、扉外装板の内側に位置する内フレームと、前記扉外装板と内フレームとの間の外周面を構成する扉縁枠と、前記扉外装板と内フレームと扉縁枠との間の空間に充填発泡させた発泡断熱材で構成し、前記扉縁枠の縦枠内面には枠補強金具を配置するとともに前記枠補強金具と前記内フレーム外周に配置したガスケット脚部との間に所定の断熱層を設け、前記枠補強金具は断面略コ字状に形成され、前記枠補強金具の前記扉外装板側の片部は前記枠補強金具のガスケット側の片部より長い寸法としたことを特徴とする冷蔵庫。 Comprising a cold Zoko body and a thermally insulating door for opening and closing the storage compartment of the refrigerator body, the door, the door exterior plate constituting its doors front, a frame inner located inside the door exterior plate, A door edge frame that constitutes an outer peripheral surface between the door exterior plate and the inner frame, and a foam heat insulating material that is filled and foamed in a space between the door exterior plate, the inner frame, and the door edge frame, given a heat insulating layer is provided, the frame reinforcement fitting section substantially U between the gasket leg disposed in said frame outer circumference to the frame reinforcing brackets with the vertical frame inner surface of Tobiraenwaku placing a frame reinforcement bracket The refrigerator is characterized in that it is formed in a letter shape, and the one part on the door exterior plate side of the frame reinforcing metal fitting is longer than the one part on the gasket side of the frame reinforcing metal fitting .

前記扉縁枠に装着した前記ガスケット側の片部は前記ガスケット脚部の頂点部よりも扉縁枠側までの位置として、前記ガスケット脚部と前記枠補強金具との間に発泡断熱材による断熱層を形成した請求項１記載の冷蔵庫。 The gasket side piece portion was charged wear the Tobiraenwaku as position until the door edge frame side from the apex portion of the gasket leg, foam insulation between said gasket legs the frame reinforcing brackets The refrigerator of Claim 1 which formed the heat insulation layer by.

前記ガスケット側の片部は前記ガスケット脚部の頂点部よりも前記扉縁枠側までの寸法とする請求項１または２記載の冷蔵庫。 Refrigerator according to claim 1 or 2, wherein the support sections of the gasket side to size up the Tobiraen frame side from the apex portion of the gasket leg.

前記枠補強金具の扉外装板側の片部は前記扉外装板側に向けて折り曲げ形成したリブを有する請求項１から３のいずれか１項記載の冷蔵庫。 Refrigerator according to any one of claims 1 to 3 pieces of the door exterior plate side with ribs formed by bending toward the door exterior plate side of said frame reinforcement bracket.

前記扉は前記扉外装板と前記内フレームとの間の発泡断熱材中に真空断熱板を備えた構成とした請求項１から４のいずれか１項記載の冷蔵庫。 The door refrigerator according to any one of claims 1 was configured to include a vacuum insulation plate 4 in foam insulation between the inner frame and the door exterior plate.

扉は扉外装板を透明板、扉縁枠を樹脂で構成するとともに、前記扉外装板を発泡断熱材で接着一体化した請求項１〜５のいずれか１項記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 5, wherein the door comprises a door exterior plate made of a transparent plate and a door edge frame made of resin, and the door exterior plate is bonded and integrated with a foam heat insulating material.