JPH074821A - refrigerator - Google Patents
refrigeratorInfo
- Publication number
- JPH074821A JPH074821A JP14886493A JP14886493A JPH074821A JP H074821 A JPH074821 A JP H074821A JP 14886493 A JP14886493 A JP 14886493A JP 14886493 A JP14886493 A JP 14886493A JP H074821 A JPH074821 A JP H074821A
- Authority
- JP
- Japan
- Prior art keywords
- cold air
- resistor
- air duct
- refrigerator
- stage
- 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
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
- F25D2500/00—Problems to be solved
- F25D2500/02—Geometry problems
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
(57)【要約】
【目的】多室冷蔵室を有する冷蔵庫において、冷蔵室の
各段の温度を均一化する。
【構成】冷却器からの冷気３Ａを冷蔵室に導くために冷
蔵室背面に設けられれた冷気ダクト１内に、抵抗体６を
設置する。抵抗体６は、例えば、複数の孔７を有する板
とする。また、冷気ダクト１には、冷蔵室に冷気３Ｃを
送るための複数の吹き出し口２が設けてある。
【効果】冷気ダクトに設けた抵抗体によって、浮力によ
る冷蔵室内への冷気の吹き出し風量の不均一を解消で
き、冷蔵室の各段の温度分布を均一化できる。
(57) [Summary] [Purpose] In a refrigerator having multiple refrigerator compartments, the temperature of each stage of the refrigerator compartment is made uniform. [Structure] A resistor 6 is installed in a cold air duct 1 provided on the rear surface of the refrigerating compartment to guide cold air 3A from a cooler to the refrigerating compartment. The resistor 6 is, for example, a plate having a plurality of holes 7. Further, the cold air duct 1 is provided with a plurality of outlets 2 for sending the cold air 3C to the refrigerating chamber. [Effect] With the resistor provided in the cold air duct, it is possible to eliminate the non-uniformity of the blowing amount of the cool air into the refrigerating chamber due to the buoyancy, and to make the temperature distribution in each stage of the refrigerating chamber uniform.
Description
【０００１】[0001]
【産業上の利用分野】本発明は家庭用冷凍冷蔵庫に係
り、特に、多室冷蔵室への冷風の吹き出し構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a domestic refrigerator / freezer, and more particularly to a structure for blowing cold air into a multi-chamber refrigerating room.
【０００２】[0002]
【従来の技術】従来の冷蔵庫について、図６と図７によ
り説明する。図６において、１は冷気ダクト、２は冷気
ダクト１に設置されている吹き出し口、３は吹き出し口
２から冷蔵室へ吹き出される冷風である。また、図７に
おいて、４は冷蔵室である。冷気ダクト１は冷蔵室４の
背面に設置されている。冷却器より送風された冷気３Ａ
は、冷気ダクト１に流入し、その一部分が複数の吹き出
し口２より冷蔵室４の格段に冷風３Ｂとして吹き出さ
れ、冷蔵室４に収納した食品を冷却する。また、残りの
冷風３Ｃは、冷蔵室４の下部に設けられたチルド室や野
菜室を冷却した後、冷風３Ｄとして冷蔵室４に流入す
る。最後に、冷風３Ａと冷風３Ｄが合流して冷蔵室４の
上部の吸い込み口５より、冷風３Ｅとして流出し、冷却
器へ戻る一巡のループをなしている。2. Description of the Related Art A conventional refrigerator will be described with reference to FIGS. In FIG. 6, 1 is a cold air duct, 2 is a blow-out port installed in the cold air duct 1, and 3 is a cold air blown from the blow-out port 2 to the refrigerating compartment. Moreover, in FIG. 7, 4 is a refrigerating room. The cold air duct 1 is installed on the back surface of the refrigerating compartment 4. Cold air blown from the cooler 3A
Flows into the cold air duct 1 and a part of the air is blown out as the cold air 3B from the plurality of outlets 2 to a great extent in the refrigerating compartment 4 to cool the food stored in the refrigerating compartment 4. Further, the remaining cold air 3C cools the chilled room and the vegetable room provided in the lower portion of the refrigerating room 4, and then flows into the refrigerating room 4 as cold air 3D. Finally, the cold air 3A and the cold air 3D join and flow out as cold air 3E from the suction port 5 in the upper part of the refrigerating chamber 4, forming a loop to return to the cooler.
【０００３】なお、この種の装置として関連するものに
は、例えば、特開昭59−15782 号，特開昭59−29964 号
公報が挙げられる。Examples of devices related to this type include, for example, JP-A-59-15782 and JP-A-59-29964.
【０００４】[0004]
【発明が解決しようとする課題】上記従来技術は、多室
冷蔵室の背面に設けた冷気ダクトを介し、冷気ダクトの
複数の吹き出し口より冷蔵室の格段に冷風を送ってい
る。冷気ダクト内は空洞であり、格段への冷気風量を調
整する構造には成っていない。そのため、比重の重い冷
気は、下部ほど多く流れてしまい、冷蔵室内の温度は下
部ほどよく冷えて、均一にならない問題があった。In the above-mentioned prior art, the cool air is sent to the refrigerating room significantly through a plurality of outlets of the cool air duct via the cool air duct provided on the back surface of the multi-chamber refrigerating room. The inside of the cold air duct is hollow and does not have a structure for adjusting the amount of cool air to the air. Therefore, a large amount of cold air having a large specific gravity flows toward the lower part, and the temperature inside the refrigerating chamber cools better toward the lower part, which is not uniform.
【０００５】本発明の目的は、冷蔵室の各段に吹き出さ
れる冷気の風量を調整し、冷蔵室内の各段の温度を均一
化できる冷蔵庫の構造を提供することにある。An object of the present invention is to provide a structure of a refrigerator in which the amount of cold air blown to each stage of the refrigerating compartment can be adjusted to make the temperature of each stage in the refrigerating compartment uniform.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
の第一の手段は、吹き出し冷気の風量を調節できる抵抗
体を設置した冷気ダクトを備えた冷蔵庫である。[Means for Solving the Problems] A first means for achieving the above object is a refrigerator provided with a cool air duct in which a resistor capable of adjusting the amount of blown cool air is installed.
【０００７】また第二の手段は、第一手段において、前
記抵抗体を多孔質の板とした前記冷気ダクトを備えた冷
蔵庫である。The second means is a refrigerator provided with the cold air duct in which the resistor is a porous plate in the first means.
【０００８】同じく第三の手段は、第一手段において、
前記抵抗体を複数個設置した前記冷気ダクトを備えた冷
蔵庫である。Similarly, the third means is, in the first means,
The refrigerator is provided with the cold air duct in which a plurality of the resistors are installed.
【０００９】同じく第四の手段は、第三手段において、
それぞれ抵抗係数を変えた前記抵抗体を複数個設置した
前記冷気ダクトを備えた冷蔵庫である。Similarly, in the fourth means, in the third means,
The refrigerator is provided with the cold air duct in which a plurality of the resistors having different resistance coefficients are installed.
【００１０】同じく第五の手段は、第四手段において、
前記抵抗体を多孔質の板とし、その孔の口径により抵抗
係数を変えた複数の前記抵抗体を設置した前記冷気ダク
トを備えた冷蔵庫である。Similarly, the fifth means is, in the fourth means,
The refrigerator is provided with the cold air duct in which the resistor is a porous plate and a plurality of the resistors having different resistance coefficients depending on the diameter of the holes are installed.
【００１１】同じく第六の手段は、第四手段において、
前記抵抗体を板とし、板の大きさにより抵抗係数を変え
た複数の前記抵抗体を設置した前記冷気ダクトを備えた
冷蔵庫である。Similarly, the sixth means is the fourth means,
In the refrigerator, the resistor is a plate, and the cold air duct is provided with a plurality of the resistors having different resistance coefficients depending on the size of the plate.
【００１２】[0012]
【作用】第一の手段によれば、冷気ダクト内に設置した
抵抗体により、冷気ダクト鉛直方向速度が抑制される。
そのため、抵抗体がない場合に比べ冷気ダクト内の鉛直
方向に圧損が生じ、冷気ダクトに設置された吹き出し口
からより多く冷気が吹き出される。According to the first means, the vertical speed of the cool air duct is suppressed by the resistor installed in the cool air duct.
Therefore, pressure loss occurs in the vertical direction in the cool air duct as compared with the case where there is no resistor, and more cool air is blown out from the blowout port installed in the cool air duct.
【００１３】第二の手段によれば、板に設けた孔によ
り、冷気ダクト内で縮流・拡大流が発生するため、冷気
ダクト内の鉛直方向に圧損が生じ、冷気ダクトに設置さ
れた吹き出し口からより多くの冷気が吹き出される。According to the second means, since the contracted / expanded flow is generated in the cold air duct by the hole provided in the plate, a pressure loss occurs in the vertical direction in the cold air duct, and the blowout installed in the cold air duct. More cold air is blown out of the mouth.
【００１４】第三の手段によれば、冷気ダクト内に設け
た複数の抵抗体により、各段の冷気の吹き出し風量を調
整できる。According to the third means, it is possible to adjust the blowing amount of cold air at each stage by the plurality of resistors provided in the cold air duct.
【００１５】第四の手段によれば、冷気ダクト内に設け
た抵抗係数の違う複数の抵抗体により、冷気ダクト内の
鉛直方向の圧損を調整でき、各段毎に冷気の吹き出し風
量を調整できる。According to the fourth means, the pressure loss in the vertical direction in the cold air duct can be adjusted by a plurality of resistors provided in the cold air duct and having different resistance coefficients, and the amount of cold air blown out can be adjusted for each stage. .
【００１６】第五の手段によれば、口径の違う多孔質の
複数の板により、冷気ダクト各位置で口径に合わせた圧
損を生じさせることができ、各段毎に冷気の吹き出し風
量を調整できる。According to the fifth means, a plurality of porous plates having different diameters can cause a pressure loss corresponding to the diameter at each position of the cold air duct, and the amount of cold air blown out can be adjusted at each stage. .
【００１７】第六の手段によれば、大きさの違う板によ
り、冷気ダクトの鉛直方向流路面積を変化させ、流路面
積に合わせた圧損を生じさせることができ、各段毎に冷
気の吹き出し風量を調整できる。According to the sixth means, it is possible to change the vertical flow passage area of the cool air duct by using the plates of different sizes and to generate the pressure loss according to the flow passage area, and to cool the air in each stage. The amount of blown air can be adjusted.
【００１８】[0018]
【実施例】以下、本発明の第一の実施例について、図１
と図２により説明する。図１において、６は冷気ダクト
１内に設置した抵抗体、７は抵抗体に設けられた孔であ
る。抵抗体６の孔７は複数個設けても良い。冷気ダクト
１に流入した冷気３Ａは一部が吹き出し口２から冷風３
Ｂとして冷蔵室へ、一部が冷風３Ｃとしてチルド室や野
菜室へ流出する。この場合、冷風３Ａは、比重が重いた
め浮力の影響で、鉛直方向に強くながれる傾向を示す。
しかし、冷却ダクト１内に設けた抵抗体６により、鉛直
方向に圧損が生じ鉛直方向の速度を抑制できる。よっ
て、抵抗体６を冷却ダクト１に設置した場合、ない場合
に比べて吹き出し口２からの冷風３Ｂの風量を増大でき
る。ここで、抵抗体６に設けた孔７の口径による抵抗係
数の関係について、図２により説明する。図２におい
て、８は孔７により生じる縮流であり、９は同様に孔７
により生じる拡大流である。このように、抵抗体６に設
けた孔７により、容易に縮流・拡大流を生じさせること
ができる。その縮流・拡大流による抵抗係数は、Ａ2／
Ａ1の関数として容易に与えられる。また、一般にＡ2の
値が小さいほど抵抗係数は大きくなることが分かってい
る。すなわち、孔７の口径が小さいほど圧損が大きくな
ることを意味する。このように、本発明によれば、冷気
ダクト１内に抵抗体６を設置したことにより、吹き出し
口２からの冷気３Ｃの流量を部分的に増大できる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG.
Will be described with reference to FIG. In FIG. 1, 6 is a resistor installed in the cold air duct 1, and 7 is a hole provided in the resistor. A plurality of holes 7 of the resistor 6 may be provided. A part of the cold air 3A that has flowed into the cold air duct 1 is discharged from the blowout port 2 into the cold air 3
As B, it flows out into the refrigerating room, and part of it flows out as cold air 3C into the chilled room and vegetable room. In this case, since the cold air 3A has a large specific gravity, the cold air 3A has a tendency to strongly flow in the vertical direction due to the influence of buoyancy.
However, the resistor 6 provided in the cooling duct 1 causes a pressure loss in the vertical direction and suppresses the vertical speed. Therefore, when the resistor 6 is installed in the cooling duct 1, it is possible to increase the air volume of the cool air 3B from the outlet 2 as compared with the case where the resistor 6 is not provided. Here, the relationship of the resistance coefficient depending on the diameter of the hole 7 provided in the resistor 6 will be described with reference to FIG. In FIG. 2, 8 is a contraction flow generated by the hole 7, and 9 is also the hole 7.
It is an expanded flow caused by. As described above, the holes 7 provided in the resistor 6 can easily generate the contracted flow / enlarged flow. The resistance coefficient due to the contracted / expanded flow is A 2 /
It is easily given as a function of A 1 . Also, it is generally known that the smaller the value of A 2, the larger the resistance coefficient. That is, the smaller the diameter of the hole 7, the larger the pressure loss. As described above, according to the present invention, by installing the resistor 6 in the cold air duct 1, the flow rate of the cool air 3C from the outlet 2 can be partially increased.
【００１９】第二の実施例について、図３と図４により
説明する。図３では、冷気ダクト１に抵抗体６が各段の
吹き出し口２の間に設けた構造となっている。抵抗体６
には複数の孔７が設置してある。また、冷気ダクト１に
設けた４個の抵抗体６の孔７の口径は下段ほど大きくし
てある。そのため、上段ほど抵抗体６の抵抗係数が大き
いことを示す。抵抗体６がない場合は、冷気３Ａの比重
が重いため浮力の影響で下段ほど吹き出し口２からの冷
気３Ｃの風量が多くなる。しかし、本発明によれば、上
段ほど、冷気ダクト１内に設けた抵抗体６の抵抗係数が
大きく、浮力の影響を打ち消すことができ、各段毎に流
量が調整できる。A second embodiment will be described with reference to FIGS. 3 and 4. In FIG. 3, the resistor 6 is provided in the cool air duct 1 between the outlets 2 of each stage. Resistor 6
A plurality of holes 7 are installed in the. Further, the diameters of the holes 7 of the four resistors 6 provided in the cold air duct 1 are made larger toward the lower stage. Therefore, it is shown that the resistance coefficient of the resistor 6 is higher toward the upper stage. When the resistor 6 is not provided, since the specific gravity of the cold air 3A is heavy, the air volume of the cool air 3C from the blowout port 2 increases toward the lower stage due to the influence of buoyancy. However, according to the present invention, the resistance coefficient of the resistor 6 provided in the cool air duct 1 is larger in the upper stage, the influence of buoyancy can be canceled, and the flow rate can be adjusted for each stage.
【００２０】例えば、冷蔵室の各段の容量と熱負荷が同
じだとした場合、従来構造では、下段ほど良く冷気３Ｃ
が流れるため、冷えてしまう。図４に各段流量と平均温
度の関係を示す。破線が従来構造の結果である。これに
対し、本発明では冷気ダクト１に設けた抵抗体６によ
り、各段の冷気３Ｃの流量を均一化できるため、冷蔵室
の各段の平均温度を均一化できる。図４において実線が
本発明による予想結果である。また、抵抗体６の孔７の
口径を変えることで、各段からの吹き出し風量を容易に
可変できる。For example, assuming that the capacity and heat load of each stage of the refrigerating compartment are the same, in the conventional structure, the cold air 3C is better as the lower stage.
Flows, so it gets cold. FIG. 4 shows the relationship between the flow rate at each stage and the average temperature. The broken line is the result of the conventional structure. On the other hand, in the present invention, since the flow rate of the cold air 3C in each stage can be made uniform by the resistor 6 provided in the cold air duct 1, the average temperature of each stage in the refrigerating chamber can be made uniform. The solid line in FIG. 4 is the expected result according to the present invention. Further, by changing the diameter of the hole 7 of the resistor 6, the amount of air blown from each stage can be easily changed.
【００２１】本発明の実施例について、図５により説明
する。図５では冷気ダクト１に設けた抵抗体６の大きさ
をそれぞれ変えた場合の例である。抵抗体６の大きさに
より抵抗係数を鉛直方向に変え、同様の効果を生むもの
である。An embodiment of the present invention will be described with reference to FIG. FIG. 5 shows an example in which the size of the resistor 6 provided in the cold air duct 1 is changed. The resistance coefficient is changed in the vertical direction according to the size of the resistor 6, and the same effect is produced.
【００２２】[0022]
【発明の効果】本発明によれば、冷気ダクト１内に設け
た抵抗体により、冷蔵室内への各段の冷気の吹き出し風
量を調整し、冷蔵室内の温度分布を均一化できる。According to the present invention, the resistor provided in the cold air duct 1 can adjust the amount of cold air blown into the refrigerating chamber at each stage to make the temperature distribution in the refrigerating chamber uniform.
【００２３】また、抵抗体の抵抗係数を可変にすること
により、冷蔵室内の各段の温度をこのみに合わせて設計
できる。Further, by making the resistance coefficient of the resistor variable, the temperature of each stage in the refrigerating room can be designed according to this.
【図１】本発明の第一実施例を示す冷気ダクト構造の説
明図。FIG. 1 is an explanatory view of a cold air duct structure showing a first embodiment of the present invention.
【図２】縮流・拡大流による圧損の関係を示した説明
図。FIG. 2 is an explanatory diagram showing the relationship between pressure loss due to contracted flow and expanded flow.
【図３】本発明の第二実施例を示す冷気ダクト構造の説
明図。FIG. 3 is an explanatory view of a cold air duct structure showing a second embodiment of the present invention.
【図４】各段流量と平均温度の関係を示した説明図。FIG. 4 is an explanatory diagram showing the relationship between each stage flow rate and average temperature.
【図５】本発明の第三実施例を示す冷気ダクト構造の説
明図。FIG. 5 is an explanatory view of a cold air duct structure showing a third embodiment of the present invention.
【図６】従来の冷気ダクト構造の説明図。FIG. 6 is an explanatory view of a conventional cold air duct structure.
【図７】冷蔵室の縦断面を示した断面図。FIG. 7 is a sectional view showing a vertical section of a refrigerating compartment.
１…冷気ダクト、２…吹き出し口、３…冷気、４…冷蔵
室、５…吸い込み口、６…抵抗体、７…孔、８…縮流、
９…拡大流。1 ... Cold air duct, 2 ... Blowout port, 3 ... Cold air, 4 ... Refrigerator, 5 ... Suction port, 6 ... Resistor, 7 ... Hole, 8 ... Constricted flow,
9 ... Expanded flow.
Claims (6)
冷蔵室の各段に吹き出し、食品を冷却する冷蔵庫におい
て、前記冷却ダクト内に抵抗体を設けたことを特徴とす
る冷蔵庫。1. Cold air from a cooler is passed through a cooling duct,
A refrigerator for cooling food by blowing into each stage of a refrigerating room, wherein a refrigerator is provided in the cooling duct.
板とした冷蔵庫。2. The refrigerator according to claim 1, wherein the resistor is a porous plate.
ダクト内に複数個設けた冷蔵庫。3. The refrigerator according to claim 1, wherein a plurality of the resistors are provided in the cooling duct.
抗係数をそれぞれ変えた冷蔵庫。4. The refrigerator according to claim 3, wherein the plurality of resistors have different resistance coefficients.
孔質の板とし、それぞれの抵抗体の孔の口径を変えた冷
蔵庫。5. The refrigerator according to claim 4, wherein the plurality of resistors are porous plates, and the diameter of the holes of each resistor is changed.
とし、それぞれの大きさを変えた冷蔵庫。6. The refrigerator according to claim 4, wherein the plurality of resistors are plates and the sizes of the resistors are changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14886493A JPH074821A (en) | 1993-06-21 | 1993-06-21 | refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14886493A JPH074821A (en) | 1993-06-21 | 1993-06-21 | refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH074821A true JPH074821A (en) | 1995-01-10 |
Family
ID=15462447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14886493A Pending JPH074821A (en) | 1993-06-21 | 1993-06-21 | refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074821A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003021168A1 (en) * | 2001-09-04 | 2003-03-13 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with cooling air circulation |
| EP2950020A1 (en) * | 2014-05-26 | 2015-12-02 | Whirlpool S.A. | Refrigerator provided with air distribution system |
-
1993
- 1993-06-21 JP JP14886493A patent/JPH074821A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003021168A1 (en) * | 2001-09-04 | 2003-03-13 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with cooling air circulation |
| US7093453B2 (en) | 2001-09-04 | 2006-08-22 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Refrigerator with cold air circulation |
| EP2950020A1 (en) * | 2014-05-26 | 2015-12-02 | Whirlpool S.A. | Refrigerator provided with air distribution system |
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