JPH04174272A - Duct device for refrigerator and the like - Google Patents
Duct device for refrigerator and the likeInfo
- Publication number
- JPH04174272A JPH04174272A JP29729690A JP29729690A JPH04174272A JP H04174272 A JPH04174272 A JP H04174272A JP 29729690 A JP29729690 A JP 29729690A JP 29729690 A JP29729690 A JP 29729690A JP H04174272 A JPH04174272 A JP H04174272A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- cold air
- refrigerator
- insulating material
- thickness
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000011810 insulating material Substances 0.000 claims abstract description 16
- 238000007664 blowing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 9
- 239000012774 insulation material Substances 0.000 description 5
- 229920006327 polystyrene foam Polymers 0.000 description 2
- 229920006328 Styrofoam Polymers 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
Landscapes
- Refrigerator Housings (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、冷凍冷蔵庫等の冷気通路に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a cold air passage of a refrigerator-freezer or the like.
冷凍冷蔵庫等の冷却器室の冷気を冷蔵室等に送出するた
めの冷気通風ダクト構造の従来例には、実公昭５１−４
３８９号公報がある。これは第２図、第４図に示すよう
に冷却器室５の冷気を冷蔵室３上部に導く冷気ダクト７
が、内箱２とダクトカバー１０で形成される筒状体の内
箱２側の面に、これらと別体の発泡スチロール等からな
る断熱体１１を配して構成されている。しかし、冷気ダ
クト７内を通過する冷却器室５で冷却された低温の冷気
が内箱２の面側に伝導しないように、発泡スチロール等
からなる断熱材１１の厚みを大きくする必要があり、そ
の分だけ冷蔵庫外箱と内箱で形成される断熱箱体１のそ
の部分の断熱壁厚を増大させてしまう。その結果、庫内
を狭くしてしまうという欠点があった。A conventional example of a cold air ventilation duct structure for sending cold air from a cooler room of a refrigerator-freezer, etc. to a refrigerator room, etc.
There is a publication No. 389. This is a cold air duct 7 that guides the cold air from the cooler compartment 5 to the upper part of the refrigerator compartment 3, as shown in Figures 2 and 4.
However, on the surface of the cylindrical body formed by the inner box 2 and the duct cover 10 on the inner box 2 side, a separate heat insulating body 11 made of foamed polystyrene or the like is arranged. However, in order to prevent the low-temperature cold air cooled in the cooler chamber 5 passing through the cold air duct 7 from being conducted to the surface side of the inner box 2, it is necessary to increase the thickness of the heat insulating material 11 made of polystyrene foam or the like. This increases the thickness of the insulation wall in that part of the insulation box 1 formed by the outer box and the inner box of the refrigerator. As a result, there was a drawback that the inside of the refrigerator became narrow.
上記従来技術は、低温の冷気が通過する冷気ダクトの断
熱材が厚くなることについて考慮がされておらず、冷蔵
庫外箱と内箱で形成される断熱箱体の断熱壁を厚くさせ
、結果として庫内を狭くしてしまうと言う問題があった
。The above conventional technology does not take into account the fact that the insulation material of the cold air duct through which low-temperature cold air passes becomes thicker, and the insulation wall of the insulation box formed by the outer box and the inner box of the refrigerator becomes thicker. There was a problem in that it made the inside of the refrigerator too small.
本発明の目的は、ダクト内の断熱材を薄くし、庫内をよ
り広く有効に利用することにある。An object of the present invention is to make the heat insulating material inside the duct thinner so that the inside of the refrigerator can be used more widely and effectively.
上記目的を達成するために、本発明は冷気ダクトの断熱
材と表面を形成するカバー部材の間に断熱空間を設ける
ことにした。In order to achieve the above object, the present invention provides a heat insulating space between the heat insulating material of the cold air duct and the cover member forming the surface.
従来の構造による冷気ダクトの熱抵抗Ｒ１を求めると、
第２図より
１ ｔ＋ ｔｘ ｌ
Ｒ・＝、、−＋ゴ丁＋ゴＴ＋マ ゛°゛゛”°゛−−−
−゛（１）となる。When determining the thermal resistance R1 of a cold air duct with a conventional structure,
From Figure 2, 1 t+ tx l R・=,, -+ Got+Go T+Ma ゛°゛゛"°゛----
−゛(1).
また、本発明の構造による冷気ダクトの熱抵抗Ｒ２は、
第３図より、
Ｉ Ｊ ｔｓ １ ｔｓ １ ｔｔ ＩＲ
・＝；７十 λ、＋；丁＋］Ｔ十；丁十π＋マ °“
゛（２）となる。Furthermore, the thermal resistance R2 of the cold air duct according to the structure of the present invention is
From Figure 3, I J ts 1 ts 1 tt IR
・=;70 λ, +;Ding+]T0;Ding1π+Ma °“
゛(2).
ここで、断熱材を一般的な発泡スチロール、カバー部材
をプラスチックとし、各変数の値を、と定め、上記（１
）、 （２）式より二を求めると、一＝１．２５
Ｒ。Here, the heat insulating material is general styrofoam, the cover member is plastic, the value of each variable is determined, and the above (1
), (2) When calculating 2 from formula, 1 = 1.25 R.
となり、熱抵抗を２５％向上させることができる。Therefore, the thermal resistance can be improved by 25%.
よって、断熱部の厚さを２５％薄くすることができる。Therefore, the thickness of the heat insulating part can be reduced by 25%.
以下、本発明の一実施例を第１図、第２図、第３図によ
り説明する。第１図は本発明の一実施例を示す冷凍冷蔵
庫の扉を外した状態の正面図で、第２図、第３図は第１
図のＡ−Ａ断面図であり、第２図は従来構造で第３図は
本発明構造の断面図である。An embodiment of the present invention will be described below with reference to FIGS. 1, 2, and 3. Figure 1 is a front view of a refrigerator-freezer showing one embodiment of the present invention with the door removed, and Figures 2 and 3 are
2 is a sectional view taken along the line AA in the figure, FIG. 2 is a sectional view of the conventional structure, and FIG. 3 is a sectional view of the structure of the present invention.
図に於いて、７は冷気ダクト、この冷気ダクト７は冷却
器室５の冷気を冷蔵室上部に導く。又、この冷気ダクト
７は内箱２とダクトカバー１０で形成される筒状体の内
箱２側の面に断熱材１１をもっている。又、断熱材１１
との間には断熱空間■２が設けられている。ここで内箱
２の材質をプラスチックとし、板厚を１闘とする。また
、断熱材１１を発泡スチロールとし、板厚を従来構造は
１ＯＮ、本発明構造は４＋ａｍとし、断熱空間厚を４Ｂ
としたときの、熱抵抗を求めると、
Ｒｓ （従来構造）＝３２３．１ （ｙｒｆ・ｂ−”Ｃ
／Ｋｃａｌ）Ｒ，（本発明構造）＝３２３．３ （ｒｄ
−ｈ−Ｃ／ Ｋｃａｌ）となり、断熱材の厚さを２０％
薄くしても、断熱効果は同等であることがわかる。In the figure, 7 is a cold air duct, and this cold air duct 7 guides cold air from the cooler room 5 to the upper part of the refrigerator room. Further, this cold air duct 7 has a heat insulating material 11 on the surface of the cylindrical body formed by the inner box 2 and the duct cover 10 on the inner box 2 side. Also, the insulation material 11
A heat insulating space ■2 is provided between the two. Here, the material of the inner box 2 is plastic, and the plate thickness is 1 mm. In addition, the heat insulating material 11 is made of polystyrene foam, the plate thickness is 1ON in the conventional structure and 4+am in the structure of the present invention, and the thickness of the heat insulating space is 4B.
When calculating the thermal resistance, Rs (conventional structure) = 323.1 (yrf・b−”C
/Kcal)R, (Structure of the present invention)=323.3 (rd
-h-C/Kcal), and the thickness of the insulation material is 20%.
It can be seen that even if the thickness is made thinner, the insulation effect is the same.
これにより、断熱材の厚さを薄くすることができ、庫内
をその分だけ広くすることができる。As a result, the thickness of the heat insulating material can be reduced, and the inside of the refrigerator can be expanded accordingly.
次に、もう一つの実施例を第５図により説明する。Next, another embodiment will be explained with reference to FIG.
図に於いて、冷気ダクト７を構成するダクトカバー１０
を庫内側に設け、ダクトカバー１０と断熱材１１の間に
断熱空間を設けている。この構造によれば先に述べた実
施例と同等の効果が得られ、庫内に突出した冷気ダクト
を小さくすることができ、庫内をより有効に利用するこ
とができる。In the figure, a duct cover 10 that constitutes a cold air duct 7 is shown.
is provided inside the refrigerator, and a heat insulating space is provided between the duct cover 10 and the heat insulating material 11. According to this structure, the same effect as the above-mentioned embodiment can be obtained, the cold air duct protruding into the refrigerator can be made smaller, and the interior of the refrigerator can be used more effectively.
本発明によれば、冷気ダクトの断熱材を薄くすることが
できるので、冷蔵庫外箱と内箱で形成される断熱箱体の
断熱壁を薄くしたり、庫内をより広くすることができる
。According to the present invention, since the insulation material of the cold air duct can be made thinner, the insulation wall of the insulation box formed by the outer box and the inner box of the refrigerator can be made thinner, and the inside of the refrigerator can be made wider.
第１図は本発明の一実施例を示す冷凍冷蔵庫の扉を外し
た状態の正面図、第２図、第３図、第５図は第１図のＡ
−Ａ断面を示し、第２図は従来構造であり、第３図、第
５図は本発明のそれぞれ異なる実施例の断面図、第４図
は従来例を示す冷凍冷蔵庫の縦断面図である。
１ ・・・・・・断熱箱体
２ ・・・・・・内箱
３ ・・・・・・冷蔵室
４ ・・・・・・冷凍室
５ ・・・・・−冷却器室
６ ・・・・・・冷却器
７ ・・・・・・冷気ダクト
８ ・・・・・・冷蔵室吸込ダクト
９ ・・・・・・送風ファン
１０・・・・・・ ダクトカバー
１１・・・・・・断熱材
１２・・・・・・断熱空間Figure 1 is a front view of a refrigerator-freezer showing an embodiment of the present invention with the door removed; Figures 2, 3, and 5 are A of Figure 1;
-A cross section is shown, FIG. 2 is a conventional structure, FIGS. 3 and 5 are sectional views of different embodiments of the present invention, and FIG. 4 is a vertical sectional view of a refrigerator-freezer showing a conventional example. . 1 ...Insulation box 2 ...Inner box 3 ...Refrigerating room 4 ...Freezing room 5 ... - Cooler room 6 ... ...Cooler 7 ...Cold air duct 8 ...Cold room suction duct 9 ...Blower fan 10 ...Duct cover 11 ...・Insulation material 12・・・Insulation space
Claims (1)
クトを介して所定の食品貯蔵室に導く冷気強制循環形冷
蔵庫において、 前記冷気ダクトの表面を形成するカバー部材と断熱材の
間に断熱空間を設けたことを特徴とする冷蔵庫等のダク
ト装置。[Scope of Claims] 1. A cold air forced circulation type refrigerator that guides cold air generated in an evaporator to a predetermined food storage chamber through a cold air duct by a blowing means, comprising: a cover member forming a surface of the cold air duct; A duct device for a refrigerator, etc., characterized by providing a heat insulating space between heat insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29729690A JPH04174272A (en) | 1990-11-05 | 1990-11-05 | Duct device for refrigerator and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29729690A JPH04174272A (en) | 1990-11-05 | 1990-11-05 | Duct device for refrigerator and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04174272A true JPH04174272A (en) | 1992-06-22 |
Family
ID=17844675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29729690A Pending JPH04174272A (en) | 1990-11-05 | 1990-11-05 | Duct device for refrigerator and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04174272A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001081818A1 (en) * | 2000-04-21 | 2001-11-01 | Matsushita Refrigeration Company | Heat insulation box, and vacuum heat insulation material used therefor |
| AU2004233499B2 (en) * | 2000-04-21 | 2005-11-24 | Panasonic Corporation | Refrigerator |
| WO2007006113A1 (en) * | 2005-07-12 | 2007-01-18 | Whirlpool S.A. | Air blowing arrangement for a combined refrigerator |
| CN103363250A (en) * | 2012-03-29 | 2013-10-23 | 三菱电机株式会社 | Vacuum heat insulation member and refrigerator employing same |
| JP2021012019A (en) * | 2020-11-04 | 2021-02-04 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
-
1990
- 1990-11-05 JP JP29729690A patent/JPH04174272A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001081818A1 (en) * | 2000-04-21 | 2001-11-01 | Matsushita Refrigeration Company | Heat insulation box, and vacuum heat insulation material used therefor |
| AU2004233499B2 (en) * | 2000-04-21 | 2005-11-24 | Panasonic Corporation | Refrigerator |
| US7210308B2 (en) | 2000-04-21 | 2007-05-01 | Matsushita Refrigeration Company | Refrigerator |
| WO2007006113A1 (en) * | 2005-07-12 | 2007-01-18 | Whirlpool S.A. | Air blowing arrangement for a combined refrigerator |
| CN103363250A (en) * | 2012-03-29 | 2013-10-23 | 三菱电机株式会社 | Vacuum heat insulation member and refrigerator employing same |
| CN103363250B (en) * | 2012-03-29 | 2015-09-30 | 三菱电机株式会社 | Vacuum heat-insulation component and employ the refrigerator of vacuum heat-insulation component |
| JP2021012019A (en) * | 2020-11-04 | 2021-02-04 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
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