JP4083130B2 - Heat insulation box - Google Patents

Heat insulation box Download PDF

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Publication number
JP4083130B2
JP4083130B2 JP2004066447A JP2004066447A JP4083130B2 JP 4083130 B2 JP4083130 B2 JP 4083130B2 JP 2004066447 A JP2004066447 A JP 2004066447A JP 2004066447 A JP2004066447 A JP 2004066447A JP 4083130 B2 JP4083130 B2 JP 4083130B2
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Japan
Prior art keywords
box
flange
inner box
convection
outer box
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JP2005257112A (en
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裕一 岡部
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Description

本発明は、冷蔵庫に利用される断熱箱体に関しする。     The present invention relates to a heat insulating box used for a refrigerator.

冷蔵庫の断熱箱体は、特許文献１〜４にも示されるように、金属製の外箱と樹脂製の内箱を嵌合させ、両者の間に発泡断熱材を充填させている。   As shown in Patent Documents 1 to 4, the heat insulating box of the refrigerator is configured such that a metal outer box and a resin inner box are fitted and a foam heat insulating material is filled therebetween.

この嵌合は、外箱の二重フランジ内に、内箱のフランジを挿入することにより行っていた。   This fitting is performed by inserting the flange of the inner box into the double flange of the outer box.

この一例を図１に示す。図１は、冷蔵庫の内箱２と外箱３との嵌合部分を断面した図である。４は冷媒パイプであり、冷蔵庫の各貯蔵室の前面開口周辺の配置されて、この開口周辺部分を暖める露付き防止手段である。５は内箱２と外箱３との間に充填された断熱発泡材である。   An example of this is shown in FIG. FIG. 1 is a cross-sectional view of a fitting portion between the inner box 2 and the outer box 3 of the refrigerator. Reference numeral 4 denotes a refrigerant pipe, which is disposed around the front opening of each storage chamber of the refrigerator, and is a dew prevention means that warms the periphery of the opening. Reference numeral 5 denotes a heat insulating foam filled between the inner box 2 and the outer box 3.

この外箱３の前側縁には二重フランジ６が設けられる。内箱２のフランジ７は、外箱３の二重フランジ６内へ挿入される。７ａは内箱２のフランジ７に設けられた突条であり、二重フランジ６に挟まれて保持される。
特開平９−３０３９４８号公報 実開平６−５９７８１号公報 特開２００２−１７４４８４号公報 特開平５−６６０８４号公報 A double flange 6 is provided on the front side edge of the outer box 3. The flange 7 of the inner box 2 is inserted into the double flange 6 of the outer box 3. Reference numeral 7 a denotes a protrusion provided on the flange 7 of the inner box 2 and is held between the double flanges 6.
JP-A-9-303948 Japanese Utility Model Publication No. 6-59781 JP 2002-174484 A JP-A-5-66084

この二重フランジ６内には発泡断熱材５が浸入しないため、この二重フランジ６内は空洞となる。この空洞内では空気の対流が起こり、冷凍室部分の冷熱がこの空洞部を介して、冷蔵室部分に洩れてしまう問題があった。   Since the foamed heat insulating material 5 does not enter the double flange 6, the double flange 6 is hollow. There is a problem that air convection occurs in the cavity, and the cold heat in the freezer compartment leaks into the refrigerator compartment through the cavity.

よって、本発明は、このような問題を解決し、空洞部による冷熱の洩れを抑えることができる断熱箱体を提供することを目的とする。   Therefore, an object of this invention is to provide the heat insulation box which can solve such a problem and can suppress the leakage of the cold heat by a cavity part.

本発明は、外箱(3)の二重フランジ(6)内に、突部(突条:7a)が設けられた内箱(2)のフランジ(7)を挿入して外箱(3)と内箱(2)を嵌合し、外箱(2)と内箱(3)との間に発泡断熱材(5)を充填する断熱箱体において、内箱(2)のフランジ(7)に、二重フランジ(6)内を空気が流れるのを抑えるための対流妨害部(堰部:8)を設けたことを特徴とする。   The present invention inserts the flange (7) of the inner box (2) provided with the protrusions (projections: 7a) into the double flange (6) of the outer box (3) to insert the outer box (3). The inner box (2), and the outer box (2) and the inner box (3) are filled with the foam insulation (5) between the outer box (2) and the inner box (2). Further, the present invention is characterized in that a convection blocking portion (weir portion: 8) for suppressing air from flowing through the double flange (6) is provided.

更に、本発明は、前記対流妨害部(8)は、冷蔵室と冷凍室の境目付近に設けたことを特徴とする。また、本発明は、前記対流妨害部(8)は、異なる温度帯の貯蔵室の境目付近に設けたことを特徴とする。   Furthermore, the present invention is characterized in that the convection blocker (8) is provided near the boundary between the refrigerator compartment and the freezer compartment. Further, the present invention is characterized in that the convection blocker (8) is provided in the vicinity of the boundary of the storage room in different temperature zones.

対流妨害部(8)により、二重フランジ(6)内での空気の対流が阻害され、冷凍室等の冷熱が、内部又は外部に洩れるのを抑制でき、冷蔵庫の省エネレベルを向上できる。   The convection blocker (8) inhibits air convection in the double flange (6), and can prevent cold heat in the freezer compartment from leaking inside or outside, thereby improving the energy saving level of the refrigerator.

本発明の実施例を説明する。   Examples of the present invention will be described.

本実施例の断熱箱体も従来と同様に、外箱の二重フランジ内に、内箱のフランジを挿入することにより両者を嵌合している。   Similarly to the conventional case, the heat insulating box of the present embodiment is fitted into the double flange of the outer box by inserting the flange of the inner box.

図１に示すように外箱３の前側縁には二重フランジ６が設けられ、内箱２のフランジ７は、外箱３の二重フランジ６内へ挿入される。７ａは内箱２のフランジ７に設けられた突条であり、二重フランジ６に挟まれて保持される。   As shown in FIG. 1, a double flange 6 is provided at the front edge of the outer box 3, and the flange 7 of the inner box 2 is inserted into the double flange 6 of the outer box 3. 7 a is a protrusion provided on the flange 7 of the inner box 2, and is held between the double flanges 6.

図２は内箱の斜視図であり、図３は図２のＡ部分の拡大図である。   FIG. 2 is a perspective view of the inner box, and FIG. 3 is an enlarged view of a portion A in FIG.

図３に示すように、この実施例の内箱２は、フランジ７の突条７ａを分断するように堰部（対流妨害部８）が設けられている。   As shown in FIG. 3, the inner box 2 of this embodiment is provided with a weir portion (convection blocking portion 8) so as to divide the protrusion 7 a of the flange 7.

空気の対流は主に二重フランジ６内の突条７ａ内で発生するので、この突条７ａ内に堰部８を複数設けて、この突条７ａを分断している。したがって、二重フランジ６内での冷熱の洩れを抑制することができる。なお、冷熱の洩れは、温度差が大きければ大きくなるので、この堰部８は冷凍室と冷蔵室の境目付近の設ければ効率的である。つまり、温度差のある貯蔵室間で熱の流れがあるのを極力抑制している。   Since air convection mainly occurs in the ridge 7a in the double flange 6, a plurality of dam portions 8 are provided in the ridge 7a to divide the ridge 7a. Therefore, leakage of cold heat in the double flange 6 can be suppressed. The leakage of cold heat increases as the temperature difference increases. Therefore, it is efficient to provide the weir portion 8 near the boundary between the freezer compartment and the refrigerator compartment. In other words, the flow of heat between storage chambers having a temperature difference is suppressed as much as possible.

以上本発明の実施例について説明したが、上述の説明に基づいて当業者にとって種々の代替例、修正又は変形が可能であり、本発明はその趣旨を逸脱しない範囲で前述の種々の代替例、修正又は変形を包含するものである。   Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various alternatives described above without departing from the spirit of the present invention. It includes modifications or variations.

本発明の一実施例及び従来の嵌合部分の断面図である。It is sectional drawing of one Example of this invention, and the conventional fitting part. 本発明の一実施例の内箱の図である。It is a figure of the inner box of one Example of this invention. 図２の一部分の拡大図である。FIG. 3 is an enlarged view of a part of FIG. 2.

符号の説明Explanation of symbols

２ 内箱、
３ 外箱、
４ 冷媒パイプ、
５ 発泡断熱材、
６ 外箱の二重フランジ、
７ 内箱のフランジ、
７ａ 突部(突条)
８ 対流妨害部(堰部)。 2 inner box,
3 Outer box,
4 Refrigerant pipe,
5 Foam insulation,
6 Double flange of outer box,
7 Inner box flange,
7a Projection (Projection)
8 Convection block (weir).

Claims (3)

外箱(3)の二重フランジ(6)内に、突部(7a)が設けられた内箱(2)のフランジ(7)を挿入して前記外箱(3)と前記内箱(2)を嵌合し、前記外箱(3)と前記内箱(2)との間に発泡断熱材(5)を充填する断熱箱体において、
前記内箱(2)の前記フランジ(7)に、前記二重フランジ(6)内を空気が流れるのを抑えるための対流妨害部(8)を設けたことを特徴とする断熱箱体。 Insert the flange (7) of the inner box (2) provided with the protrusion (7a) into the double flange (6) of the outer box (3) to insert the outer box (3) and the inner box (2 In the heat insulating box body filled with the foam heat insulating material (5) between the outer box (3) and the inner box (2),
A heat insulating box, wherein the flange (7) of the inner box (2) is provided with a convection hindrance (8) for suppressing air from flowing through the double flange (6). 前記対流妨害部(8)は、冷蔵室と冷凍室の境目付近に設けたことを特徴とする請求項１の断熱箱体。 2. The heat insulation box according to claim 1, wherein the convection blocking portion (8) is provided near the boundary between the refrigerator compartment and the freezer compartment. 前記対流妨害部(8)は、異なる温度帯の貯蔵室の境目付近に設けたことを特徴とする請求項１の断熱箱体
2. The heat insulation box according to claim 1, wherein the convection blocker (8) is provided near a boundary of a storage room in a different temperature zone.
JP2004066447A 2004-03-09 2004-03-09 Heat insulation box Expired - Fee Related JP4083130B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004066447A JP4083130B2 (en) 2004-03-09 2004-03-09 Heat insulation box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004066447A JP4083130B2 (en) 2004-03-09 2004-03-09 Heat insulation box

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Publication Number Publication Date
JP2005257112A JP2005257112A (en) 2005-09-22
JP4083130B2 true JP4083130B2 (en) 2008-04-30

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Application Number Title Priority Date Filing Date
JP2004066447A Expired - Fee Related JP4083130B2 (en) 2004-03-09 2004-03-09 Heat insulation box

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