KR200157340Y1 - Freezing storage chamber return duct of a refrigerator - Google Patents

Freezing storage chamber return duct of a refrigerator Download PDF

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Publication number
KR200157340Y1
KR200157340Y1 KR2019970011938U KR19970011938U KR200157340Y1 KR 200157340 Y1 KR200157340 Y1 KR 200157340Y1 KR 2019970011938 U KR2019970011938 U KR 2019970011938U KR 19970011938 U KR19970011938 U KR 19970011938U KR 200157340 Y1 KR200157340 Y1 KR 200157340Y1
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South Korea
Prior art keywords
cooling chamber
freezer compartment
return duct
cold air
refrigerator
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KR2019970011938U
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Korean (ko)
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KR19980067376U (en
Inventor
최승억
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전주범
대우전자주식회사
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Priority to KR2019970011938U priority Critical patent/KR200157340Y1/en
Publication of KR19980067376U publication Critical patent/KR19980067376U/en
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Publication of KR200157340Y1 publication Critical patent/KR200157340Y1/en

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    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means
    • 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F25D23/068—Arrangements for circulating fluids through the insulating material
    • 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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material
    • 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
    • F25D2317/063—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 with air guides

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

본 고안은 냉장고의 냉동실 리턴덕트에 관한 것으로, 종래에는 냉각실에서 생성된 냉기가 냉동실 전용 송풍팬에 의하여 고내로 공급된 후에 냉동실 하단 후방의 루버 A 및 루버 B에 형성된 냉기귀환구를 통하여 냉각실로 재차 귀환되는 구조로 이루어져 있어, 냉각실에서 생성된 냉기의 역류로 인하여 냉동실 후방면에 성에가 착상되는 문제와, 제상시 제상히터에 의한 제상열기가 역류되어 냉동실 고내 냉각균형을 파괴하는 문제가 있었다.The present invention relates to a freezer compartment return duct of a refrigerator, and conventionally, after the cold air generated in the cooling compartment is supplied into the refrigerator by a dedicated blower fan for the freezer compartment, the cold air return port formed at louvers A and louver B at the rear of the freezer compartment is transferred to the cooling chamber. It is composed of the structure that is fed back, there is a problem that the frost on the rear surface of the freezer compartment due to the reflux of the cold air generated in the cooling chamber, and the defrosting heater by the defrost heater during defrosting flows back to destroy the cooling balance in the freezer compartment .

따라서, 이러한 문제를 해결하기 위하여, 냉동실의 양측 내상 배면에 형성된 단열재 내부에 냉동실과 냉각실을 연통시키는 리턴덕트를 형성하여, 고내로 공급된 냉기가 열교환된 후에 리턴덕트를 타고 냉각실로 귀환되도록 하고, 리턴덕트의 냉각실측 단부에는 냉각실측으로만 개방되는 다이어프램(diaphragm)을 설치하여서 된 것이다.Therefore, in order to solve this problem, a return duct for communicating the freezer compartment and the cooling chamber is formed in the heat insulating material formed on the inner back surface of both sides of the freezer compartment so that the cold air supplied into the refrigerator is returned to the cooling chamber via the return duct after heat exchange. The diaphragm which opens only to the cooling chamber side is provided in the cooling chamber side edge part of a return duct.

Description

냉장고의 냉동실 리턴덕트Freezer return duct of the refrigerator

본 고안은 냉장고의 냉동실 리턴덕트의 구조 개선에 관한 것이다.The present invention relates to the improvement of the structure of the freezer return duct of the refrigerator.

종래 냉장고의 냉동실 리턴덕트는 도시된 제1도과 같이, 냉동실(F)의 후방면을 구성하는 루버 A(12)와 냉각실(10)사이를 단열시키기 위하여 단열재인 스티로 폼이 내장된 루버 B(14)의 하단부에 소정의 냉기귀환공(40a)(40b)을 형성하여서 이루어진 것으로, 냉장고가 운전되면서 냉매가 소정의 냉동싸이클을 따라 순환될 때에 냉각실(10)에 설치된 증발기(20)로부터 생성된 냉기는 증발기(20)의 상부에 설치된 F-팬(30)에 의하여 강제 유도되어 냉동실(F) 고내로 토출 공급되고 있다.As shown in FIG. 1, the freezer return duct of the conventional refrigerator includes louver B having styrofoam as insulation material to insulate between the louver A 12 and the cooling chamber 10 constituting the rear surface of the freezer compartment F. It is formed by forming predetermined cold air return holes 40a and 40b at the lower end of 14, and from the evaporator 20 installed in the cooling chamber 10 when the refrigerant is circulated along a predetermined freezing cycle while the refrigerator is operating. The generated cold air is forcibly guided by the F-fan 30 installed above the evaporator 20 and discharged into the freezer compartment F.

이렇게 공급된 냉기는 고내를 순환하면서 수납중인 식품과의 열교환을 통하여 온도 상승된 후에 루버 A(12)와 루버 B(14)의 하단부에 형성된 냉기귀환공(40a)(40b)을 통하여 냉각실(10)로 귀환되고 있다.The cold air thus supplied is circulated inside the cooling chamber and the temperature is raised through heat exchange with the food being stored, and then the cooling chamber (40a, 40b) is formed at the lower ends of the louvers A (12) and the louvers (B 14). 10) to return.

그런데, 이와 같이 냉기 귀환을 위하여 루버 A(12)와 루버 B(14)에 형성된 냉기귀환공(40a)(40b)을 통하여 냉각실(10)에서 형성된 극저온의 냉기가 역류되어 루버 A(12)의 표면이나 냉기귀환공(40a)(40b) 주변이 빙결되면서 성에가 착상되어 냉기의 순환이 고르게 되지 못하는 문제와, 제상모드시 발열되는 제상히터의 고열이 냉기귀환공(40a)(40b)를 통해 역류되면서 냉동실(F) 고내의 냉각균형이 파괴되는 문제가 발생되었다.However, the cryogenic cold air formed in the cooling chamber 10 is reversed through the cold air return holes 40a and 40b formed in the louver A 12 and the louver B 14 for the return of the cold air. When the surface of the or cold air return hole (40a, 40b) around the frost is formed, the circulation of cold air is not even, and the high heat of the defrost heater that is generated during the defrost mode is the cold return hole (40a, 40b) As a result of the flow through the reflux, the cooling balance in the freezer compartment (F) is broken.

또한, 루버 B(14)의 단열재인 스티로폼을 내장하는 데에 따른 원가상승의 문제도 있어 왔다.In addition, there has been a problem of cost increase due to embedding styrofoam which is a heat insulating material of louver B (14).

본 고안은 상술한 바와 같은 제반 문제점을 감안하여 이를 해결하고자 안출된 것으로, 냉각모드시 냉각실의 냉기와 제상모드시 냉각실의 열기가 역류되지 못하도록하여 냉각성능의 향상에 따른 품질향상과 아울러 원가절감될 수 있는 냉장고의 냉동실 리턴덕트의 제공을 그 기술적 과제로 하는 것이다.The present invention has been devised to solve the above problems in consideration of the above-mentioned problems, and prevents the cooling of the cooling chamber in the cooling mode and the heat of the cooling chamber in the defrost mode so that the heat cannot flow back, thereby improving the quality of the cooling performance and the cost thereof. The technical problem is to provide a freezer return duct of the refrigerator which can be saved.

제1도는 종래 냉장고의 냉동실을 도시한 측단면도,1 is a side cross-sectional view showing a freezer compartment of a conventional refrigerator,

제2도는 본 고안에 따른 리턴덕트가 형성된 냉동실을 도시한 측단면도,2 is a side cross-sectional view showing a freezer compartment in which a return duct is formed according to the present invention;

제3도는 본 고안에 따른 리턴덕트가 형성된 냉동실을 도시한 평단면도.3 is a cross-sectional view showing a freezer compartment in which a return duct is formed according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 냉각실 12 : 루버 A10: cooling chamber 12: louver A

14 : 루버 B 20 : 증발기14 louver B 20 evaporator

30 : F-팬 50 : 우레탄30: F-fan 50: urethane

60 : 리턴덕트 70 : 제상히터60: return duct 70: defrost heater

90 : 다이어프램(diaphragm)90 diaphragm

본 고안은 상기한 기술적 과제를 실현하기 위하여, 냉각실에서 생성된 냉기가 냉동실로 공급된 후에 냉각실로 재차 귀환되는 통로인 냉동실 리턴덕트에 있어서, 상기 냉동실의 양측 내상 배면에 형성된 단열재 내부에 냉동실과 냉각실이 연통되는 리턴덕트를 형성하여서 된 것을 특징으로 한다.In order to realize the above technical problem, in the freezer compartment return duct, which is a passage in which cold air generated in the cooling chamber is fed back to the cooling chamber after being supplied to the freezing chamber, the freezer compartment and the freezing chamber are formed inside the heat insulating material formed on the rear surface of both sides of the freezing chamber. The cooling duct is characterized by forming a return duct in communication.

이하에서는, 본 고안에 따른 바람직한 일 실시예를 첨부한 도면을 참조하여 보다 상세히 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in more detail.

도시한 제2도는 본 고안에 따른 냉장고의 냉동실 리턴덕트구조를 개략적으로 도시한 측단면도이고, 제3도는 본 고안에 따른 냉동실의 리턴덕트구조를 보다 명확하게 도시한 평단면도이다.Figure 2 is a side cross-sectional view schematically showing a freezer compartment return duct structure of the refrigerator according to the present invention, Figure 3 is a cross-sectional plan view more clearly showing the return duct structure of the freezer compartment according to the present invention.

본 고안은 상술한 제2도 내지 제3도를 통하여 잘 알수 있듯이, 냉동실(F)의 양측면 내상 배면에 충진된 단열재(50)를 소정길이로 관통하면서 냉각실(10)과 연통되는 리턴덕트(60)가 마련되고, 그 후단에는 일방향으로만 개방되는 얇은 막형태의 플랩인 다이어프램(diaphragm)이 설치되어 있다.The present invention, as can be seen through the above 2 to 3, the return duct communicating with the cooling chamber 10 while penetrating a predetermined length through the heat insulating material 50 filled in the inner back surface of both sides of the freezing chamber (F) ( 60 is provided, and a diaphragm, which is a thin film-like flap that is opened only in one direction, is provided at the rear end thereof.

즉, 이러한 리턴덕트(60)는 냉각실(10)의 하단으로 연통되도록 이루어진 것이므로 자연스런 고내 대류를 통하여 유입된 냉기가 열교환후 온도상승되어 냉각실(10)로 귀환되도록 된 것으로, 종래의 단열벽 역할을 하던 루버절연물인 스티로 폼이 제거되고 단순한 몰드물로 형성된 루버 B(14)가 이를 대체하면서 형성된 것이다.That is, the return duct 60 is to be communicated to the lower end of the cooling chamber 10, so that the cold air introduced through natural convection in the natural convection is raised to a temperature after heat exchange and returned to the cooling chamber 10, the conventional heat insulating wall The louver insulator styro foam, which used to be removed, was formed by replacing louver B 14 formed of a simple mold.

이와 같은 구성으로 이루어진 본 고안은, 냉장고가 냉각모드로 운전되면서 냉각실(10)에서 생성된 냉기는 루버 A(12)의 상부에 형성된 냉기홀을 통하여 F-팬(30)의 송풍력으로 냉동실(F) 고내로 공급된다.The present invention having such a configuration, the cold air generated in the cooling chamber 10 while the refrigerator is operated in the cooling mode, the freezing chamber by the blowing force of the F-fan 30 through the cold air hole formed in the upper portion of the louver A (12) (F) It is supplied into the storehouse.

이렇게 공급된 냉기는 냉동실(F) 내부의 선반에 수납중인 식품과 열교환을 하게 되고, 이러한 과정에서 다소 온도상승된 냉기는 고내를 대류하다가 냉동실(F) 양측면 하단부에 형성된 리턴덕트(60)를 통하여 냉각실(10)로 귀환되게 된다.The supplied cold air exchanges heat with the food being stored on the shelf inside the freezer compartment F. In this process, the cold air that has risen somewhat through the convection inside the freezer compartment via return ducts 60 formed at the lower ends of both sides of the freezer compartment F. Return to the cooling chamber (10).

이러한 냉기의 순환싸이클에 따라 냉기의 공급 및 귀환의 순환이 자연스럽게 일어나게 되며, 냉각실(10)의 하단으로 귀환된 냉기는 냉각실(10) 상부로 상승하면서 증발기(20)의 표면에서 생성되는 극저온의 냉기와 열교환되면서 온도강하되어 F-팬(30)으로 유입되면서 재차 냉동실(F) 고내로 공급되는 순환구조를 이루는 것이다.The circulation of the cold air supply and return occurs naturally according to the circulation cycle of the cold air, and the cold air returned to the lower end of the cooling chamber 10 rises to the upper part of the cooling chamber 10 and the cryogenic temperature generated on the surface of the evaporator 20. The temperature is dropped while the heat exchange with the cold flows into the F-fan 30 to form a circulation structure that is supplied into the freezer compartment F again.

한편, 냉각실(10)에 설치된 증발기(20)의 표면에 착상된 성에의 제거를 위하여 제상모드로 변환되면서 제상히터(70)에 의한 제상작업이 진행되면, 주지된 바와같이 자연대류 현상에서 나타나듯이, 더운공기는 상승되므로 제상히터(70)로부터 발열된 더운공기는 증발기(20)의 표면에 부착된 냉각핀(미도시)들 사이를 따라 대류되면서 상승되게 된다.On the other hand, when the defrosting operation by the defrost heater 70 proceeds to the defrost mode to remove the frost formed on the surface of the evaporator 20 installed in the cooling chamber 10, as shown in the natural convection phenomenon As the hot air is raised, the hot air generated from the defrost heater 70 is raised while convectioned along cooling fins (not shown) attached to the surface of the evaporator 20.

이때에, 리턱덕트(60)의 후단에 증발기(20)가 설치된 냉각실(10)측으로만 개방 작동하도록 설치된 다이어프램(90)에 의하여 제상히터(70)에 의한 제상열기가 냉동실(F) 고내로는 유입되지 못하게 된다.At this time, the defrost heater 70 by the defrost heater 70 is opened into the freezer compartment F by the diaphragm 90 installed to open only to the cooling chamber 10 side in which the evaporator 20 is installed at the rear end of the limit duct 60. Will not flow.

따라서, 루버 A(12)와 냉각실(10) 사이에는 냉기와 온기의 교반이 일어나지 않게 되므로 루버 B(14)에 절연물인 스티로 폼을 내장할 필요가 없게 되는 것이다.Therefore, since the agitation of cold and warm air does not occur between the louver A 12 and the cooling chamber 10, the louver B 14 does not need to incorporate a styrofoam which is an insulator.

이상의 설명은 본 고안에 따른 바람직한 일실시예의 설명에 불과할 뿐이며, 본 고안의 구성 및 요지의 범위내에서 다양한 변형과 변경이 가능함을 쉽게 이해할수 있을 것이다.The above description is only a description of a preferred embodiment according to the present invention, it will be readily understood that various modifications and changes are possible within the scope and configuration of the present invention.

이상에서 살펴 본 바와 같이, 본 고안에 따른 냉장고의 냉동실 리턴덕트는, 기존과 같이 루버의 하단에 귀환공을 형성함으로써 이를 단열시키기 위하여 별도의 루버절연물이 필요하던 것이 제거됨으로써 원가상승의 요인이 제거되는 효과가 있고, 아울러 제상작용시 제상히터로부터 발열된 제상열기가 역류되어 고내 온도상승으로 인한 냉각균형의 파괴나 냉각모드시 역류된 냉기에 의하여 고내후방면을 구성하는 루버표면에 성에가 착상되는 문제 등을 효과적으로 방지할 수 있게된 유용한 장점이 있는 것이다.As described above, the freezer return duct of the refrigerator according to the present invention eliminates the need for a separate louver insulator in order to insulate it by forming a return hole at the bottom of the louver as in the past, thereby eliminating the cost increase factor. In addition, defrosting heat generated from the defrost heater during defrosting action is reversed, and frost is formed on the surface of the louver that constitutes the inside and rear surfaces of the louver due to the destruction of the cooling equilibrium due to the high temperature rise in the high temperature or the reflux of the reflux in the cooling mode. There is a useful advantage that can effectively prevent problems.

Claims (2)

냉각실(10)에서 생성된 냉기가 냉동실(F)로 공급된 후에 냉각실(10)로 재차 귀환되는 통로인 냉동실 리턴덕트에 있어서, 상기 냉동실(F)의 양측 내상 배면에 형성된 단열재 내부에 냉동실(F)과 냉각실(10)이 연통되는 리턴덕트(60)를 형성하여서 된 것을 특징으로 하는 냉장고의 냉동실 리턴덕트.In the freezer compartment return duct, which is a passage in which the cold air generated in the cooling chamber 10 is supplied to the freezing chamber F and then returned to the cooling chamber 10 again, the freezing chamber inside the heat insulating material formed on the inner back surface of both sides of the freezing chamber F. (F) The freezer compartment return duct of the refrigerator characterized by forming a return duct 60 in which the cooling chamber 10 communicates. 제1항에 있어서, 상기 리턴덕트(60)는 냉각실(10)측 단부에 냉각실(10)측으로만 개방되는 다이어프램(90)을 설치한 것을 특징으로 하는 냉장고의 냉동실 리턴덕트.The freezing compartment return duct of claim 1, wherein the return duct (60) is provided with a diaphragm (90) opened only at the cooling chamber (10) side at an end of the cooling chamber (10) side.
KR2019970011938U 1997-05-26 1997-05-26 Freezing storage chamber return duct of a refrigerator KR200157340Y1 (en)

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KR200157340Y1 true KR200157340Y1 (en) 1999-09-15

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