JP3049425B2 - Refrigerator with two evaporators - Google Patents
Refrigerator with two evaporatorsInfo
- Publication number
- JP3049425B2 JP3049425B2 JP10167969A JP16796998A JP3049425B2 JP 3049425 B2 JP3049425 B2 JP 3049425B2 JP 10167969 A JP10167969 A JP 10167969A JP 16796998 A JP16796998 A JP 16796998A JP 3049425 B2 JP3049425 B2 JP 3049425B2
- Authority
- JP
- Japan
- Prior art keywords
- evaporator
- refrigerator
- compartment
- refrigerator compartment
- refrigerant
- 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.)
- Expired - Fee Related
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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2511—Evaporator distribution valves
-
- 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
- F25D2317/066—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 the air supply
- F25D2317/0665—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 the air supply from the top
-
- 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
- F25D2317/068—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 the fans
- F25D2317/0682—Two or more fans
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/04—Refrigerators with a horizontal mullion
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は冷蔵庫に関し、より
詳細には冷凍室用蒸発器と冷蔵室用蒸発器とを別々に備
えた冷蔵庫に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly, to a refrigerator provided with an evaporator for a freezer compartment and an evaporator for a refrigerator compartment separately.
【０００２】[0002]
【従来の技術】一般に、冷蔵庫は飲食物等を冷凍又は冷
蔵保管するために使用される。冷蔵庫は、図１に示すよ
うに、ケース１０内に、冷凍室１０ａと冷蔵室１０ｂと
に分離された受納空間が構成され、前記ケース１０の一
側には前記冷凍室１０ａ及び冷蔵室１０ｂを開閉するド
ア１２が装着されている。そして、冷凍サイクルをなし
て冷凍室１０ａ、冷蔵室１０ｂの温度を低めるための機
器は、圧縮器２０、凝縮器３０、毛細管４０（図２参
照）、及び蒸発器等からなっている。2. Description of the Related Art Generally, refrigerators are used for freezing or refrigerated storage of foods and drinks. As shown in FIG. 1, the refrigerator has a receiving space separated into a freezer compartment 10 a and a refrigerator compartment 10 b in a case 10, and the freezer compartment 10 a and the refrigerator compartment 10 b are provided on one side of the case 10. The door 12 is opened and closed. A device for forming a refrigerating cycle and lowering the temperatures of the freezing room 10a and the refrigerating room 10b includes a compressor 20, a condenser 30, a capillary tube 40 (see FIG. 2), an evaporator, and the like.
【０００２】大容量の冷蔵庫などには前記蒸発器が冷凍
室用蒸発器５０、冷蔵室用蒸発器５２として別々に備わ
っている。前記各蒸発器５０、５２は、冷凍室１０ａ、
冷蔵室１０ｂの外部に設けられており、高い熱交換効率
のためにピンチューブタイプからなっている。又、冷
凍、冷蔵室１０ａ、１０ｂの空気を各蒸発器５０、５２
を経て循環させる送風ファン６０、６２もやはり別々に
備わっており、前記各送風ファン６０、６２の駆動のた
めのモータ７０には定速誘導式モータが用いられてい
る。前記各蒸発器５０、５２には、温度差に起因して空
気中の水分が凝縮されて結ばれる霜を除去するための、
除霜ヒータなどの除霜装置（図示せず）が具備されてい
る。In a large-capacity refrigerator or the like, the evaporator is separately provided as an evaporator 50 for a freezer compartment and an evaporator 52 for a refrigerator compartment. Each of the evaporators 50 and 52 includes a freezer compartment 10a,
It is provided outside the refrigerator compartment 10b and is of a pin tube type for high heat exchange efficiency. The air in the freezing and refrigerating compartments 10a and 10b is supplied to the evaporators 50 and 52, respectively.
Are also separately provided, and a constant-speed induction motor is used as the motor 70 for driving each of the blowers 60, 62. Each of the evaporators 50 and 52 has a function of removing frost formed by condensing moisture in the air due to a temperature difference.
A defrosting device (not shown) such as a defrosting heater is provided.
【０００３】以下、一般的な冷蔵庫の作動過程を図１、
図２を参照して説明する。まず、圧縮器２０が、低温低
圧の気体状態の冷媒を高温高圧に圧縮させる。圧縮され
た高温高圧の気体状態の冷媒は凝縮器３０を経つつ冷却
凝縮されて高圧の液体状態になる。そして、毛細管４０
を通過しながら高圧の液体状態の冷媒の温度及び圧力が
低くなる。次いで、各蒸発器５０、５２では、低温低圧
の気体状態に変化しながら周囲の熱を奪うことにより、
各蒸発器５０、５２の周囲空気を冷却させるようにな
る。この際、各蒸発器５０、５２により冷却された空気
は、各送風ファン６０、６２の作動によって冷凍室１０
ａ、冷蔵室１０ｂに向かって流入される。すなわち、冷
凍室１０ａ、冷蔵室１０ｂは、各送風ファン６０、６２
による空気循環過程において各蒸発器５０、５２により
冷却される。そして、前記各蒸発器５０、５２に結んだ
霜は除霜装置の作動によって溶けてドレイン通路（図示
せず）を介して外部に排出される。[0003] The operation of a general refrigerator is shown in FIG.
This will be described with reference to FIG. First, the compressor 20 compresses a low-temperature and low-pressure gaseous refrigerant to a high-temperature and high-pressure. The compressed high-temperature and high-pressure gaseous refrigerant is cooled and condensed while passing through the condenser 30 to become a high-pressure liquid state. And the capillary tube 40
The temperature and the pressure of the high-pressure liquid state refrigerant while passing through are lowered. Next, in each of the evaporators 50 and 52, the surrounding heat is removed while changing to a low-temperature low-pressure gas state.
The surrounding air of each evaporator 50, 52 is cooled. At this time, the air cooled by the evaporators 50 and 52 is supplied to the freezing room 10 by the operation of the blowing fans 60 and 62.
a, It flows into the refrigerator compartment 10b. That is, the freezing room 10a and the refrigerating room 10b are
Is cooled by the evaporators 50 and 52 in the air circulation process. The frost formed on the evaporators 50 and 52 is melted by the operation of the defroster and discharged to the outside via a drain passage (not shown).
【０００４】前記各蒸発器５０、５２の連係方式は並列
式と直列式とに分けられる。直列式は、冷媒を供給する
冷媒管が２つの蒸発器のうち何れか１つを先に経た後に
他の蒸発器に繋がる形態である。並列式は、各蒸発器へ
冷媒を供給する冷媒管が主冷媒管から分岐される方式で
ある。The linking system of the evaporators 50 and 52 is classified into a parallel system and a series system. The serial type is a mode in which a refrigerant pipe for supplying a refrigerant passes through one of the two evaporators first, and then is connected to another evaporator. The parallel type is a type in which a refrigerant pipe for supplying a refrigerant to each evaporator is branched from a main refrigerant pipe.
【０００５】図２は並列式を示す図であり、各蒸発器５
０、５２の冷媒管へ流入される冷媒量は、冷凍室１０ａ
及び冷蔵室１０ｂの温度に基づいて各冷媒管の分岐点で
三方バルブ８０等の調節装置により調節するようになっ
ている。すなわち、冷蔵室１０ｂの温度が設定温度以下
に下降し、冷凍室１０ａの温度が設定温度以上に上昇す
る場合には、三方バルブ８０が冷蔵室用蒸発器５２の冷
媒管を遮断し且つ冷凍室用蒸発器５０の冷媒管へ冷媒流
れを誘導する。これにより、冷凍室用蒸発器５０の冷却
作用が一層活発になり、冷凍室１０ａの温度が集中的に
低くなる。逆に、冷蔵室１０ｂの温度が設定温度以上に
高くなる場合には、冷媒が冷蔵室１０ｂに向かって流れ
るようにして冷蔵室１０ｂの温度を集中的に低める。勿
論、冷凍室１０ａ、冷蔵室１０ｂの温度が同時に設定温
度以下に下降する場合には、圧縮器２０の作動が停止
し、冷媒流れが止まるようになる。結局、１つの蒸発器
を用いて冷凍室１０ａと冷蔵室１０ｂを同時冷却させる
場合に、冷凍室１０ａ、冷蔵室１０ｂの温度帯域の違い
に起因して発生する熱力学的な損失を減少させることが
できるようになる。この際、冷凍室１０ａ、冷蔵室１０
ｂの空気を循環させる各送風ファン６０、６２は定速誘
導式モータ７０により駆動されるので、冷凍室１０ａ、
冷蔵室１０ｂの温度調節は大分各蒸発器５０、５２へ流
入される冷媒量の調節及び圧縮器２０の作動により行わ
れる。FIG. 2 is a diagram showing a parallel type, in which each evaporator 5
The amount of refrigerant flowing into the refrigerant pipes 0, 52 is the freezing room 10a.
And at the branch point of each refrigerant pipe, it is adjusted by an adjusting device such as a three-way valve 80 based on the temperature of the refrigerator compartment 10b. That is, when the temperature of the refrigerator compartment 10b falls below the set temperature and the temperature of the freezer compartment 10a rises above the preset temperature, the three-way valve 80 shuts off the refrigerant pipe of the refrigerator evaporator 52 and the freezer compartment. The refrigerant flow is guided to the refrigerant pipe of the evaporator 50 for use. Thereby, the cooling action of the freezing room evaporator 50 becomes more active, and the temperature of the freezing room 10a is reduced intensively. Conversely, when the temperature of the refrigerator compartment 10b becomes higher than the set temperature, the temperature of the refrigerator compartment 10b is reduced intensively by causing the refrigerant to flow toward the refrigerator compartment 10b. Of course, when the temperatures of the freezing compartment 10a and the refrigerating compartment 10b simultaneously fall below the set temperature, the operation of the compressor 20 stops, and the refrigerant flow stops. After all, in the case where the freezing room 10a and the refrigerating room 10b are simultaneously cooled using one evaporator, the thermodynamic loss generated due to the difference in the temperature band between the freezing room 10a and the refrigerating room 10b is reduced. Will be able to At this time, the freezing room 10a, the refrigeration room 10
Since each of the blower fans 60 and 62 for circulating the air of b is driven by the constant speed induction motor 70, the freezing compartments 10a and
The temperature of the refrigerating compartment 10b is adjusted by adjusting the amount of refrigerant flowing into each of the evaporators 50 and 52 and operating the compressor 20.
【０００６】一方、前記冷凍室用蒸発器５０が冷凍室１
０ａの外部に設けられるものは、０℃以下の低温に維持
すべき冷凍室１０ａの特性上、除霜ヒータ等のように発
熱作用を果たす除霜装置を備えることができないため、
熱交換作用により凝縮された空気中の水分が霜になって
積もる。このため、徐々に熱交換効率を落とすようにな
る。On the other hand, the freezer compartment evaporator 50 is
Since the device provided outside of 0a cannot be provided with a defrosting device that performs a heat-generating action such as a defrosting heater due to the characteristics of the freezing room 10a to be maintained at a low temperature of 0 ° C. or lower,
Moisture in the air condensed by the heat exchange action becomes frost and accumulates. Therefore, the heat exchange efficiency gradually decreases.
【０００７】冷蔵室用蒸発器５２が冷蔵室１０ｂの外部
に設けられるものは、冷凍室用蒸発器５０と同様に冷蔵
室１０ｂ内で除霜装置を備えづらい。のみならず、除霜
装置を備えても、ピンチューブタイプという蒸発器５２
の構造上、霜が除霜作用によって溶けて発生した水気が
十分に排出されずに溜まっているようになる。このた
め、水気の腐敗に起因して冷蔵室１０ｂで保管している
食品の保存状態を悪くする恐れがある。又、各蒸発器５
０、５２が冷凍室１０ａ、冷蔵室１０ｂの内部に設けら
れる場合には、前記各送風ファン６０、６２もやはり冷
凍室１０ａ、冷蔵室１０ｂ内に設けられなければならな
い。このため、各送風ファン６０、６２の設置に起因し
て冷凍、冷蔵室１０ａ、１０ｂの実使用容量が減少す
る。[0007] When the refrigerator evaporator 52 is provided outside the refrigerator compartment 10b, it is difficult to provide a defrosting device in the refrigerator compartment 10b like the freezer compartment evaporator 50. In addition, even if a defrosting device is provided, a pin tube type evaporator 52
Due to the structure of the above, the moisture generated by the frost being melted by the defrosting action is not sufficiently discharged and is accumulated. For this reason, there is a possibility that the storage state of the food stored in the refrigerator compartment 10b may be deteriorated due to the decay of moisture. In addition, each evaporator 5
When 0 and 52 are provided inside the freezer compartment 10a and the refrigerator compartment 10b, the respective blowing fans 60 and 62 must also be provided inside the freezer compartment 10a and the refrigerator compartment 10b. For this reason, the actual use capacity of the freezing and refrigerating compartments 10a and 10b is reduced due to the installation of the blowers 60 and 62.
【０００８】かかる従来の技術によれば、各蒸発器５
０、５２の冷媒管へ流入される冷媒の量を冷凍室１０
ａ、冷蔵室１０ｂの温度に基づいて調節しなければなら
ないため、三方バルブ８０等の別途の機構を必要とす
る。このため、冷蔵庫の製造コストが高くなり、前記三
方バルブ８０の作動時に発生する騒音により冷蔵庫の商
品性が落ちる。更に、冷凍室１０ａとは違って、冷蔵室
１０ｂでは食品を凍結状態に保管しない。このため、空
気が蒸発器５２を経る過程で水分が凝縮されて湿気のな
い状態で送風ファン６２を介して冷蔵室１０ｂに供給さ
れる一方、除霜装置の作動時において蒸発器５２で溶け
た霜が別途のドレイン通路を介して外部に排出されるた
め、その湿度が低くなって保管している食品が乾燥し易
いという短所がある。According to such a conventional technique, each evaporator 5
The amount of refrigerant flowing into the refrigerant pipes 0 and 52 is
a. Since the temperature must be adjusted based on the temperature of the refrigerator compartment 10b, a separate mechanism such as the three-way valve 80 is required. Therefore, the manufacturing cost of the refrigerator increases, and the noise generated when the three-way valve 80 is operated lowers the commercial value of the refrigerator. Further, unlike the freezing room 10a, the food is not stored in a frozen state in the refrigerator room 10b. For this reason, air is condensed in the process of passing through the evaporator 52, and is supplied to the refrigerator compartment 10b via the blower fan 62 in a moisture-free state while being melted by the evaporator 52 during operation of the defroster. Since the frost is discharged to the outside through a separate drain passage, there is a disadvantage that the humidity is reduced and the stored food is easily dried.
【０００９】[0009]
【発明が解決しようとする課題】本発明は上記の従来の
技術の問題点を解決するためになされたものであり、そ
の目的とするところは、冷蔵室用蒸発器を冷蔵室内に設
け、三方バルブ等の別途の機器を用いることなく冷凍室
及び冷蔵室の温度を自動的に調節するようにして、冷蔵
室内の保湿作用をなし且つ三方バルブの使用に起因する
各種の問題点を防止することができる、２つの蒸発器を
備えた冷蔵庫を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. It is an object of the present invention to provide an evaporator for a refrigerator in a refrigerator, and To automatically control the temperature of the freezer compartment and the refrigerator compartment without using a separate device such as a valve, to perform a moisturizing action in the refrigerator compartment and to prevent various problems caused by the use of the three-way valve. To provide a refrigerator having two evaporators.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
の本発明は、冷凍室及び冷蔵室に分離される受納空間を
構成するケースと、前記ケースの一側に装着され、冷凍
室、冷蔵室を開閉する各ドアと、蒸発器、圧縮器、凝縮
器、及び毛細管冷凍サイクルをなす機器と、空気を蒸発
器を経て循環させる送風ファンとを含んで構成され、前
記蒸発器及び前記送風ファンが冷凍室用、冷蔵室用に別
々に備わっている冷蔵庫において、前記冷凍室用蒸発器
と冷蔵室用蒸発器とは並列式に連結され、前記冷凍室用
蒸発器へ冷媒を供給する冷媒管と冷蔵室用蒸発器へ冷媒
を供給する冷媒管は主冷媒管から別の調節装置を経ずに
単純分岐されること、及び前記冷蔵室用蒸発器とこれに
連係された冷蔵室用送風ファンとが冷蔵室内に設けられ
ることにより、除霜作用時、水分の蒸発に因る保湿作用
が可能なように構成されていることを特徴とする。更
に、前記冷蔵室用蒸発器は、直冷板形態からなるため、
除霜作用時に水分が円滑に排出されるとともに、冷蔵室
内で占める空間が大きくないことを特徴とする。更に、
前記送風ファンは、可変速式モータと連係されることに
より、回転速度を調節可能に構成されることを特徴とす
る。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a case which forms a receiving space separated into a freezer compartment and a refrigerator compartment, a freezer compartment mounted on one side of the case, Each of the doors for opening and closing the refrigerator compartment, equipment for forming an evaporator, a compressor, a condenser, and a capillary refrigeration cycle, and a blower fan for circulating air through the evaporator are configured to include the evaporator and the blower In a refrigerator in which fans are separately provided for a freezer compartment and a refrigerator compartment, the evaporator for a freezer compartment is provided .
And a refrigerator compartment evaporator are connected in parallel, and
Refrigerant pipe for supplying refrigerant to evaporator and refrigerant to refrigerator evaporator
The refrigerant pipe supplying the main refrigerant pipe from the main refrigerant pipe without passing through another adjusting device
The simple branching and the provision of the refrigerator compartment evaporator and the refrigerator compartment blower fan connected to the refrigerator compartment in the refrigerator compartment enable a dehumidifying function to perform a moisturizing function due to evaporation of water. It is characterized by having such a configuration. Further, since the refrigerating room evaporator is in the form of a direct cooling plate,
It is characterized in that moisture is smoothly discharged during the defrosting operation and the space occupied in the refrigerator compartment is not large. Furthermore,
The blower fan is configured to be adjustable in rotation speed by being linked with a variable speed motor.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施形態を図３〜
図５を参照して詳細に説明する。本発明の構成中におい
て従来の構成と同じ部分はその説明を省略し、同一符号
を付ける。図３は本発明の実施形態による２つの蒸発器
を備えた冷蔵庫の構造を示す断面図、図４は本発明の実
施形態による２つの蒸発器を備えた冷蔵庫において、冷
凍サイクルをなす要素らを示す概略的構成図、図５は本
発明の実施形態による２つの蒸発器を備えた冷蔵庫にお
いての冷凍室及び冷蔵室の温度調節のための制御ロジッ
クを示す作動流れ図である。本発明の実施形態による２
つの蒸発器を備えた冷蔵庫は、図３に示すように、冷凍
室１０ａの冷却のための冷凍室用蒸発器５０と冷蔵室１
０ｂの冷却のための冷蔵室用蒸発器５３とを備える。前
記冷蔵室用蒸発器５３は従来のピンチューブタイプより
も嵩小のパネルタイプからなり、冷凍室用蒸発器５０と
並列式に連結される。上述したように、本発明における
冷蔵室用蒸発器５３にはパネルタイプを用いることが好
ましいが、従来のピンチューブタイプを用いてもよい。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described in detail with reference to FIG. In the structure of the present invention, the same parts as those of the conventional structure are not described, and are denoted by the same reference numerals. FIG. 3 is a cross-sectional view illustrating a structure of a refrigerator having two evaporators according to an embodiment of the present invention, and FIG. 4 is a view illustrating components forming a refrigeration cycle in a refrigerator having two evaporators according to an embodiment of the present invention. FIG. 5 is a schematic diagram illustrating the operation of a refrigerator having two evaporators according to an embodiment of the present invention. 2 according to an embodiment of the present invention
As shown in FIG. 3, the refrigerator having two evaporators includes a freezer evaporator 50 for cooling the freezer 10a and a refrigerator compartment 1.
0b for cooling the refrigerator. The refrigerating room evaporator 53 is a panel type which is smaller than a conventional pin tube type, and is connected in parallel with the freezing room evaporator 50. As described above, the panel type is preferably used for the refrigerator compartment evaporator 53 in the present invention, but a conventional pin tube type may be used.
【００１２】ここで、前記冷蔵室用蒸発器５３は
略「「」状になり、冷蔵室１０ｂ内部の上側エッジに装
着される。その一側には冷蔵室１０ｂ内の空気を誘導す
る送風ファン６２が装着され、前記送風ファン６２によ
り誘導された空気が冷蔵室用蒸発器５３と接した後再び
冷蔵室１０ｂへ流入されるように循環通気路を形成する
ガイドカバー９０が冷蔵室用蒸発器５３を覆う形態に設
けられている。The refrigerating compartment evaporator 53 has a substantially "" shape, and is mounted on the upper edge inside the refrigerating compartment 10b. A blower fan 62 for guiding the air in the refrigerator compartment 10b is mounted on one side thereof, and the air guided by the blower fan 62 comes into contact with the refrigerator compartment evaporator 53 and then flows into the refrigerator compartment 10b again. A guide cover 90 that forms a circulation ventilation path is provided in a form that covers the refrigerator compartment evaporator 53.
【００１３】前記ガイドカバー９０の中心部には、送風
ファン６２に近接して形成されるともに前記送風ファン
６２の作動時に冷蔵室１０ｂ内の空気がその内部に吸入
されるようにする吸気口９０ａが形成され、両先端に
は、吸入された空気が冷蔵室用蒸発器５３を経て再び冷
蔵室１０ｂに排出されるようにする排気口９０ｂが形成
される。At the center of the guide cover 90, an air inlet 90a is formed near the blower fan 62 and allows air in the refrigerator compartment 10b to be sucked into the cooler room 10b when the blower fan 62 operates. An exhaust port 90b is formed at both ends to allow the sucked air to be discharged again to the refrigerator compartment 10b via the refrigerator evaporator 53.
【００１４】そして、図４に示すように、各蒸発器５
０、５３へ冷媒を供給する通路である各冷媒管は、従来
の三方バルブ８０（図２参照）等の別途の調節装置を経
ずに主冷媒管から単純分岐される。各送風ファン６０、
６２の駆動のためのモータ７２にはその回転数を調節可
能な可変速式を用いる。Then, as shown in FIG.
Refrigerant pipes, which are channels for supplying the refrigerant to 0 and 53, are simply branched from the main refrigerant pipe without passing through a separate adjusting device such as a conventional three-way valve 80 (see FIG. 2). Each blower fan 60,
A variable speed type whose rotation speed can be adjusted is used as the motor 72 for driving the motor 62.
【００１５】図５に示すような冷凍室１０ａの温度を調
節する制御ロジックによれば、冷凍室１０ａの温度（Ｔ
１）が設定温度（Ｔｓｅｔ１）よりも高い場合には圧縮
器２０及び冷凍室用送風ファン６０が作動するようにな
り、圧縮器２０及び送風ファン６０の作動によって冷凍
室の温度（Ｔ１）が設定温度（Ｔｓｅｔ１）以下に下降
する場合には圧縮器２０及び送風ファン６０の作動が止
まることになる。図５に示すよううな冷蔵室の温度（Ｔ
２）を調節する制御ロジックによれば、冷蔵室の温度
（Ｔ２）が設定温度（Ｔｓｅｔ２）よりも高い場合には
冷蔵室用送風ファン６２が作動するようになり、前記送
風ファン６２の作動によって冷蔵室の温度（Ｔ２）が設
定温度（Ｔｓｅｔ２）以下に下降する場合には送風ファ
ン６２の作動が止まるようになる。According to the control logic for adjusting the temperature of the freezing room 10a as shown in FIG. 5, the temperature of the freezing room 10a (T
1 ) is higher than the set temperature (T set1 ), the compressor 20 and the freezing room blower fan 60 operate, and the freezer room temperature (T 1 ) is activated by the operation of the compressor 20 and the freezing fan 60. Falls below the set temperature (T set1 ), the operation of the compressor 20 and the blower fan 60 stops. The temperature (T) of the refrigerator compartment as shown in FIG.
According to the control logic for adjusting 2 ), when the temperature (T 2 ) of the refrigerator compartment is higher than the set temperature (T set2 ), the refrigerating compartment blower fan 62 operates, and When the temperature (T 2 ) of the refrigerator compartment falls below the set temperature (T set2 ) by the operation, the operation of the blower fan 62 stops.
【００１６】冷凍室用送風ファン６０の作動時のその回
転数は「冷凍室用送風ファンの回転数＝比例係数×（冷
凍室温度−設定温度）＋最小回転数」で計算され、冷蔵
室用送風ファン６２の作動時のその回転数は「冷蔵室用
送風ファンの回転数＝比例係数×（冷蔵室温度−設定温
度）＋最小回転数」で計算される。ここで、前記比例係
数は、各送風ファン６０、６２のサイズ、冷凍室１０ａ
及び冷蔵室１０ｂの嵩、モータ７２の容量などにより決
定される。The number of rotations of the freezing room fan 60 during operation is calculated by "the number of rotations of the freezing room fan = proportional coefficient × (freezer room temperature-set temperature) + minimum number of rotations". The number of rotations of the blower fan 62 at the time of operation is calculated by “the number of rotations of the refrigeration room blower fan = proportional coefficient × (refrigerator room temperature−set temperature) + minimum number of rotations”. Here, the proportionality coefficient is determined by the size of each blower fan 60, 62, the freezing room 10a.
And the bulk of the refrigerator compartment 10b, the capacity of the motor 72, and the like.
【００１７】上述したように構成される本発明の実施形
態による２つの蒸発器を備えた冷蔵庫の作用を、図３、
図４を参照して以下に説明する。冷蔵室１０ｂは、その
内部の空気が冷蔵室用送風ファン６２の作動によってガ
イドカバー９０の吸気口９０ａを介して誘導され、冷蔵
室用蒸発器５３を経て冷却された後、再びガイドカバー
の排気口９０ｂを介して排出される循環過程により冷却
される。一方、冷蔵室１０ｂの温度が設定値以下に下降
する場合には、従来のように三方バルブ８０（図２参
照）等の別途の調節装置により冷蔵室用蒸発器５３への
冷媒供給が中断されるのではなく、冷媒供給はそのまま
維持される状態で、可変速式モータ７２の作動で送風フ
ァン６２の回転速度が減少して空気の循環速度が調節さ
れるか、或いは送風ファン６２の作動が止まって温度が
再度上昇するようになる。冷凍室１０ａの温度が設定値
以下に下降する場合にも、圧縮器２０の作動が止まり、
このため冷媒の流入が中断されて温度上昇が加速化され
る。The operation of a refrigerator having two evaporators according to an embodiment of the present invention configured as described above will be described with reference to FIGS.
This will be described below with reference to FIG. In the refrigerator compartment 10b, the air inside the refrigerator compartment 10b is guided through the air inlet 90a of the guide cover 90 by the operation of the refrigerator compartment blower fan 62, cooled through the refrigerator compartment evaporator 53, and then exhausted from the guide cover again. It is cooled by a circulation process discharged through the port 90b. On the other hand, when the temperature of the refrigerator compartment 10b falls below the set value, the supply of the refrigerant to the refrigerator compartment evaporator 53 is interrupted by a separate adjusting device such as a three-way valve 80 (see FIG. 2) as in the related art. Instead, while the supply of the refrigerant is maintained as it is, the rotation speed of the blower fan 62 is reduced by operating the variable speed motor 72 to adjust the air circulation speed, or the operation of the blower fan 62 is stopped. It stops and the temperature starts to rise again. Also when the temperature of the freezing room 10a falls below the set value, the operation of the compressor 20 stops,
Therefore, the inflow of the refrigerant is interrupted, and the temperature rise is accelerated.
【００１８】一方、冷蔵室１０ｂは４℃〜５℃程度の温
度に維持される。よって、それの圧縮器２０の作動が止
まる場合、冷蔵室１０ｂ内に装着された冷蔵室用蒸発器
５３の温度は零度以上になるため、自然的に霜が溶けて
除霜作用をなすようになる。この際、前記冷蔵室用蒸発
器５３が直冷板形態なので、除霜作用時に、霜が溶ける
過程で発生した水分が溜まらないで円滑に流れてドレイ
ン通路（図示せず）を介して冷蔵室１０ｂの外部に排出
されるとともに、一部は冷蔵室１０ｂ内で蒸発されて保
湿作用を果たすようになる。On the other hand, the refrigerator compartment 10b is maintained at a temperature of about 4 ° C. to 5 ° C. Therefore, when the operation of the compressor 20 is stopped, the temperature of the refrigerator evaporator 53 installed in the refrigerator compartment 10b becomes equal to or higher than zero degree, so that the frost melts naturally to perform the defrosting action. Become. At this time, since the refrigerating room evaporator 53 is a direct cooling plate type, during the defrosting operation, the water generated in the process of melting the frost does not accumulate but flows smoothly and flows through a drain passage (not shown). While being discharged to the outside of 10b, a part thereof is evaporated in the refrigeration room 10b to perform a moisturizing action.
【００１９】[0019]
【発明の効果】上述したように、本発明による２つの蒸
発器を備えた冷蔵庫は以下のような効果がある。冷凍室
用蒸発器、冷蔵室用蒸発器に供給される冷媒を分配する
三方バルブ等の別途の調節装置を用いないため、三方バ
ルブの使用時に生じた作動騒音が無くなり、全体的な製
造コストが減少し、冷蔵室内に設けられた冷蔵室用蒸発
器によって保湿作用されて食品の新鮮度が長く維持され
る等の利点がある。As described above, the refrigerator having two evaporators according to the present invention has the following effects. Since no separate control device such as a three-way valve for distributing the refrigerant supplied to the freezer evaporator or the refrigerator compartment evaporator is used, the operating noise generated when using the three-way valve is eliminated, and the overall manufacturing cost is reduced. There is an advantage that the freshness of the food is maintained for a long time by the moisturizing action by the refrigerator evaporator provided in the refrigerator compartment.
【図１】従来の２つの蒸発器を備えた冷蔵庫の構造を示
す断面図。FIG. 1 is a cross-sectional view showing the structure of a conventional refrigerator having two evaporators.
【図２】従来の２つの蒸発器を備えた冷蔵庫において、
冷凍サイクルをなす要素を示す概略的構成図。FIG. 2 shows a conventional refrigerator equipped with two evaporators.
The schematic block diagram which shows the element which comprises a refrigeration cycle.
【図３】本発明の実施形態による２つの蒸発器を備えた
冷蔵庫の構造を示す断面図。FIG. 3 is a cross-sectional view illustrating a structure of a refrigerator having two evaporators according to an embodiment of the present invention.
【図４】本発明の実施形態による２つの蒸発器を備えた
冷蔵庫において、冷凍サイクルをなす要素らを示す概略
的構成図。FIG. 4 is a schematic configuration diagram showing components forming a refrigeration cycle in a refrigerator having two evaporators according to an embodiment of the present invention.
【図５】本発明の実施形態による２つの蒸発器を備えた
冷蔵庫において、冷凍室及び冷蔵室の温度調節のための
制御ロジックを示す作動流れ図。FIG. 5 is an operation flowchart illustrating a control logic for controlling the temperature of a freezer compartment and a refrigerator compartment in a refrigerator having two evaporators according to an embodiment of the present invention.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F25D 11/02 F25B 1/00 383 F25B 5/02 510 F25B 5/02 530 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) F25D 11/02 F25B 1/00 383 F25B 5/02 510 F25B 5/02 530
Claims (3)
を構成するケースと、前記ケースの一側に装着され、冷
凍室、冷蔵室を開閉する各ドアと、蒸発器、圧縮器、凝
縮器、及び毛細管のように冷凍サイクルをなす機器と、
空気を蒸発器を経て循環させる送風ファンとを含んで構
成され、前記蒸発器と前記送風ファンが冷凍室用、冷蔵
室用に別々に備わっている冷蔵庫において、前記冷凍室用蒸発器と冷蔵室用蒸発器とは並列式に連結
され、前記冷凍室用蒸発器へ冷媒を供給する冷媒管と冷
蔵室用蒸発器へ冷媒を供給する冷媒管は主冷媒管から調
節装置を介さずに単純分岐されること、及び 前記冷蔵室
用蒸発器とこれに連係された冷蔵室用送風ファンとが冷
蔵室内に設けられることにより、除霜作用時、水分の蒸
発に因る保湿作用が可能なように構成されていること、 を特徴とする冷蔵庫。1. A case forming a receiving space separated into a freezer compartment and a refrigerator compartment, doors mounted on one side of the case for opening and closing the freezer compartment and the refrigerator compartment, an evaporator, a compressor, A condenser and a device that forms a refrigeration cycle such as a capillary tube;
Is configured to include a blowing fan for circulating air through the evaporator, the evaporator and the blowing fan is a freezer compartment, in the refrigerator that comes separately for the refrigerating chamber, the freezing chamber evaporator and the refrigerating compartment Connected in parallel with the evaporator
And a refrigerant pipe for supplying a refrigerant to the freezer evaporator.
The refrigerant pipe that supplies the refrigerant to the storage chamber evaporator is controlled from the main refrigerant pipe.
The simple branching without the use of a knot device and the provision of the refrigerator compartment evaporator and the refrigerator compartment blower fan associated therewith in the refrigerator compartment contribute to the evaporation of water during the defrosting operation. the Ruhoshime action is configured to be a refrigerator according to claim.
成し、除霜作用時に水分が円滑に排出されるとともに、
冷蔵室内で占める空間が大きくなるようにしたことを特
徴とする請求項１記載の冷蔵庫。2. The refrigerating room evaporator is configured as a direct cooling plate, and moisture is smoothly discharged during a defrosting operation.
2. The refrigerator according to claim 1, wherein a space occupied in the refrigerator compartment is increased.
係されることにより、回転速度を調節可能に構成される
ことを特徴とする請求項１記載の冷蔵庫。3. The refrigerator according to claim 1, wherein the blower fan is configured to be adjustable in rotation speed by being linked with a variable speed motor.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970029740A KR100249195B1 (en) | 1997-06-30 | 1997-06-30 | Refrigerator |
| KR29740/1997 | 1997-08-29 | ||
| KR1019970042905A KR19990019522A (en) | 1997-08-29 | 1997-08-29 | Refrigerator with two evaporators using variable speed B.L.C fan motor |
| KR42905/1997 | 1997-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11148759A JPH11148759A (en) | 1999-06-02 |
| JP3049425B2 true JP3049425B2 (en) | 2000-06-05 |
Family
ID=26632899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10167969A Expired - Fee Related JP3049425B2 (en) | 1997-06-30 | 1998-06-16 | Refrigerator with two evaporators |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3049425B2 (en) |
| CN (1) | CN1129759C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3462156B2 (en) * | 1999-11-30 | 2003-11-05 | 株式会社東芝 | refrigerator |
| JP2005180874A (en) | 2003-12-22 | 2005-07-07 | Toshiba Corp | Refrigerator |
| CN100394124C (en) * | 2006-01-12 | 2008-06-11 | 哈尔滨工业大学 | solidification latent heat type heat pump utilizing low-level heat source water supply sensible heat to defrost |
| KR100803574B1 (en) * | 2006-10-11 | 2008-02-15 | 엘지전자 주식회사 | Fan motor driving control apparatus for refrigerator |
| CN101799235B (en) * | 2010-03-10 | 2011-08-03 | 浙江华美电器制造有限公司 | Freezing, thawing and refrigerating larder capable of reusing energy |
| CN103017446B (en) * | 2013-01-10 | 2015-03-25 | 合肥华凌股份有限公司 | Air-cooled refrigerator |
| CN103267392A (en) * | 2013-06-07 | 2013-08-28 | 合肥美的电冰箱有限公司 | Refrigerating system and refrigerator with refrigerating system |
| CN103604262A (en) * | 2013-11-28 | 2014-02-26 | 合肥晶弘电器有限公司 | Moisture preservation refrigerator |
| EP4310419A1 (en) * | 2022-07-22 | 2024-01-24 | Thermo King LLC | A refrigeration system for a transport unit and a method of controlling airflow in a refrigerated transport unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910007176Y1 (en) * | 1988-09-14 | 1991-09-24 | 삼성전자 주식회사 | Device for collecting defrost water |
| CN2070428U (en) * | 1990-09-08 | 1991-01-30 | 清华大学 | Sleeve type evaporator for direct cooling refrigerator |
| CN2145354Y (en) * | 1992-12-16 | 1993-11-03 | 杭州医疗器械厂研究所 | Freezing controller of multi-door refrigerator |
| KR0149916B1 (en) * | 1994-11-11 | 1999-05-01 | 김광호 | Operation control arrangement for refrigerator of high efficiency multi-evaporator cycle |
-
1998
- 1998-06-16 JP JP10167969A patent/JP3049425B2/en not_active Expired - Fee Related
- 1998-06-30 CN CN98117251A patent/CN1129759C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1208165A (en) | 1999-02-17 |
| CN1129759C (en) | 2003-12-03 |
| JPH11148759A (en) | 1999-06-02 |
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