KR0145659B1 - Defrosting apparatus of a refrigerator - Google Patents

Defrosting apparatus of a refrigerator

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Publication number
KR0145659B1
KR0145659B1 KR1019930017703A KR930017703A KR0145659B1 KR 0145659 B1 KR0145659 B1 KR 0145659B1 KR 1019930017703 A KR1019930017703 A KR 1019930017703A KR 930017703 A KR930017703 A KR 930017703A KR 0145659 B1 KR0145659 B1 KR 0145659B1
Authority
KR
South Korea
Prior art keywords
diaphragm
return duct
refrigerator
evaporator
cold air
Prior art date
Application number
KR1019930017703A
Other languages
Korean (ko)
Other versions
KR950009185A (en
Inventor
박진구
신준철
Original Assignee
배순훈
대우전자주식회사
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 배순훈, 대우전자주식회사 filed Critical 배순훈
Priority to KR1019930017703A priority Critical patent/KR0145659B1/en
Priority to BR9403434A priority patent/BR9403434A/en
Priority to TW83108129A priority patent/TW246712B/zh
Priority to CN94117395A priority patent/CN1111343A/en
Priority to JP6234455A priority patent/JPH0783556A/en
Priority to AU71684/94A priority patent/AU685140B2/en
Priority to EP94306536A priority patent/EP0644385A1/en
Publication of KR950009185A publication Critical patent/KR950009185A/en
Application granted granted Critical
Publication of KR0145659B1 publication Critical patent/KR0145659B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water

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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)
  • Defrosting Systems (AREA)

Abstract

이 발명은 냉장고의 제상장치에 관한 것으로서, 특히 리턴덕트(200)를 상, 하부로 양분하는 격판(4)을 전열성이 좋은 금속재질로 하는 한편, 그 전열면적을 증가하는 복수개의 요입·요철부(400)(410)를 형성하고 각 요입부에 전열선(5)을 결합한 특징적인 구성에 의해, 냉동·냉장실의 냉기들 사이의 온도차로 인하여 격판에서 열교환이 일어날 때 수분함량이 큰 냉장실 냉기중의 수분이 격판에 착상되어 성에로 변하거나 또는 응결됨에 따라 증발기의 성에 착상률이 감소하는 효과가 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a defrosting apparatus for a refrigerator. In particular, a plurality of recesses and recesses for increasing the heat transfer area of the diaphragm 4 for dividing the return duct 200 into upper and lower parts is made of a good heat transfer material. By forming the parts 400 and 410 and coupling the heating wire 5 to each recess, the cold water in the refrigerator compartment having a large moisture content when heat exchange occurs in the diaphragm due to the temperature difference between the cold air in the freezer and refrigerator compartment. As moisture in the diaphragm is implanted on the diaphragm and becomes condensed or condensed, there is an effect of decreasing the rate of implantation in the evaporator.

Description

냉장고의 제상장치Defroster of the refrigerator

제1도는 종래 제상장치의 단면도1 is a cross-sectional view of a conventional defrosting apparatus

제2도는 본 발명의 사시도2 is a perspective view of the present invention

제3도는 본 발명의 측단면도3 is a side cross-sectional view of the present invention.

제4도는 제3도의 A-A선 단면도4 is a cross-sectional view taken along the line A-A of FIG.

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

1 : 냉장고 본체 10 : 냉동실1: refrigerator body 10: freezer

110 : 냉장실 2 : 사절판110: cold room 2: trimming plate

200 : 리턴덕트 200A : 냉동 리턴덕트200: return duct 200A: refrigeration return duct

200B : 냉장 리턴덕트 201 : 상면200B: refrigerated return duct 201: upper surface

202 : 바닥면 210, 220 : 돌기202: floor surface 210, 220: projection

3 : 증발기 4 : 격판3: evaporator 4: diaphragm

400 : 요입부 410 : 요철부400: recessed portion 410: uneven portion

5 : 전열선5: heating wire

본 발명은 냉장고의 제상장치에 관한 것으로서, 특히 전열성이 우수한 금속재질의 격판으로 리턴덕트를 상·하부로 양분하고 그 전열성을 증가하는 요입·요철부를 연속반복적으로 형성하여 각 요입부에 전열선을 결합하여 냉기중의 수분이 상기 격판에 응결 또는 착상되어 수분함량이 저하된 냉기가 증발기로 향하도록 함으로서 증발기의 성에 발생율을 감소하고 그에 따라 전열히터의 가동시간을 단축하며 또한 냉장고 효율을 증가한 냉장고의 제상장치에 관한 것이다.The present invention relates to a defroster of a refrigerator, and in particular, a metal plate having excellent heat resistance, which divides the return duct into the upper and lower portions, and continuously forms recesses and uneven portions that increase the heat transfer property of each heating element. By condensing or forming moisture in the cold air onto the diaphragm to direct cold air having a reduced water content to the evaporator, the incidence rate of the evaporator is reduced, thereby reducing the operating time of the electric heater and increasing the refrigerator efficiency. It relates to a defrosting device.

종래의 제상장치는 제 1 도에 도시한 바와같이, 냉동실(100)과 냉장실(110)을 갖는 냉장고(1)의 사절판(2)에 리턴덕트(200)가 형성되고 냉동실(100)후방에는 증발기(3)가 배치된 상태에서 증발기(3)직하방에 전열히터(300)가 설치되 있었다. 이러한 종래의 제상장치는 냉장고의 작동시 냉기가 상기 증발기(3)를 거쳐 냉동·냉동실(100)(110)내를 순환할 때 냉기중에 포함된 수분이 증발기 표면에 착상되어 성에로 변화게 되면 열교환에 저장을 초래하기 때문에 주기적으로 냉장고의 작동을 중지시킨 상태에서 상기 전열히터(300)를 작동시켰다. 이로서 증발기 표면의 성에를 녹여 제거한 뒤 재차 냉장고를 작동시켰다. 그러나 냉기중에 포함된 수분량이 많을 경우에는 냉장고의 작동중지 시간이 잦아져 냉동 및 냉장효율이 저하되고 또한 전열히터의 작동시간이 길어짐에 따라 열손실이 극심한 등의 문제가 있었다.In the conventional defrosting apparatus, as shown in FIG. 1, a return duct 200 is formed on the trimming plate 2 of the refrigerator 1 having the freezing compartment 100 and the refrigerating compartment 110, and is located behind the freezing compartment 100. In the state where the evaporator 3 is arranged, the heat transfer heater 300 was installed directly under the evaporator 3. This conventional defrosting device is heat exchanged when the moisture contained in the cold air is formed on the surface of the evaporator when the cool air circulates in the freezer and freezer chambers 100 and 110 through the evaporator 3 when the refrigerator operates. The electric heater 300 was operated in a state where the operation of the refrigerator is stopped periodically because it causes storage. As a result, the frost on the surface of the evaporator was dissolved and removed, and the refrigerator was operated again. However, when the amount of moisture contained in the cold air has a lot of problems such as the loss of freezing and refrigeration efficiency due to the frequent operation stop time of the refrigerator and the operation time of the electric heater is prolonged.

본 발명은 상기의 점을 감안하여 개발한 것으로서, 그 목적은 증발기의 성에 발생율을 감소하여 열교환 효율을 향상하고 또한 전열히터의 작동시간을 단축하여 냉장고효율을 향상한 냉장고의 제상장치를 제공함에 있다.The present invention was developed in view of the above, and an object thereof is to provide a defrosting apparatus for a refrigerator, which reduces an incidence rate of an evaporator, thereby improving heat exchange efficiency and shortening an operating time of an electric heater, thereby improving refrigerator efficiency. .

상기의 목적을 달성하기 위한 본 발명은 리턴덕트를 상·하부로 양분하는 격판을 전열성이 좋은 금속재질로 사용하였다. 한편, 냉동실의 냉기를 평면으로된 냉각판으로 전도시켜 냉장고의 공기와 열교환하는 방법은 일본공개실용신안공보 소53-1415160(78. 11. 18)에 공지되어 있었다. 본 발명은 이인용고안과 달리 격판을 사용하여 리턴덕트를 상하로 양분하면서 동시에 전열효율을 증진하기 위해 그 전열면적을 증가하는 요입부와 요철부를 복수개 형성하고 각 요입부에는 전열선을 결합함으로서 증발기로 리턴되는 냉기중에 포함된 수분이 상기 격판에 응결 또는 착상되어 대부분이 제거된 상태의 냉기가 증발기로 순환하게 하여 증발기표면에 착상되는 성에량을 감소하는 특징이 있다.In order to achieve the above object, the present invention uses a diaphragm for dividing the return duct into the upper and lower parts as a metal having good heat conductivity. On the other hand, a method of conducting heat exchange with air in a refrigerator by conducting cold air in a freezer compartment into a flat cooling plate is known from Japanese Patent Application Laid-Open No. 53-1415160 (78. 11. 18). The present invention, unlike the two-seat design to divide the return duct up and down by using a diaphragm and at the same time to increase the heat transfer efficiency to form a plurality of indentations and concave-convex parts to increase the heat transfer area and return to the evaporator by combining the heating wire in each recess Moisture contained in the cold air is condensed or formed on the diaphragm is characterized by reducing the amount of frost formed on the surface of the evaporator by causing the cold air in the state that most of the removed is circulated to the evaporator.

이하 본 발명의 바람직한 실시예를 첨부도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제 2 도는 본 발명 격판의 사시도로서, 상기 격판(4)은 전열성이 좋은 알루미늄 등의 금속재질로 하고, 그 전열면적을 증가하기 위하여 요입부(400)와 요철부(410)를 연속반복적으로 복수개 형성한다. 한쳔 격판의 양측에는 브래킷(420)을 설치하여 후술하는 리턴덕트에 설치한다. 또한 상기 각 요입부(400)에는 전열선(5)을 결합하고, 격판이 후방으로 기울어지도록 양측에 상기 브래킷(420)을 결합한다.2 is a perspective view of the diaphragm of the present invention, wherein the diaphragm 4 is made of a metal material such as aluminum having good heat transfer property, and the recessed part 400 and the uneven part 410 are repeatedly repeatedly formed in order to increase the heat transfer area. A plurality is formed. Brackets 420 are installed on both sides of the diaphragm to be installed in the return duct to be described later. In addition, each of the concave portion 400 is coupled to the heating wire (5), the bracket 420 is coupled to both sides so that the diaphragm is inclined backward.

제 3 도는 본 발명의 측단면도로서, 사절판(2)에 의해 냉동·냉장실(100)(110)로 분리되고 냉동실(100)후방에는 증발기(3)가 설치된 상태에서 상기 사절판의 리턴덕트 상에 격판(4)을 결합하여 상부에는 냉동실과 증발기 하부를 연결하는 냉동 리턴덕트(200A)를 형성하고, 하부에는 냉장실과 증발기하부를 연결하는 냉장 리턴덕트(200B)를 형성한다.3 is a side cross-sectional view of the present invention, which is separated into a freezing / freezing chamber (100) (110) by a trimming plate (2), and an evaporator (3) is installed at the rear of the freezing chamber (100). Combining the diaphragm 4 to the upper portion to form a freezing return duct (200A) connecting the freezer compartment and the lower part of the evaporator, the lower portion forms a refrigerated return duct (200B) connecting the refrigerator compartment and the lower part of the evaporator.

제 4 도는 제 3 도의 A-A 선 단면도로서, 상기 냉기 리턴덕트(200A)의 상면(201)에 상기 각 요입부(400)와 대응하는 돌기(210)를 형성하고, 냉장 리턴덕트(200B)의 바닥면(202)에 상기 각 요철부(410)와 대응하는 돌기(220)를 형성하여 이들 덕트(200A)(200B)를 통과하는 냉기가 상기 격판(4)과 활발히 접촉할 수 있게 한다.FIG. 4 is a cross-sectional view taken along line AA of FIG. 3 to form projections 210 corresponding to the recesses 400 on the upper surface 201 of the cold air return duct 200A, and the bottom of the refrigerated return duct 200B. The projections 220 corresponding to the concave-convex portions 410 are formed on the surface 202 to allow the cold air passing through these ducts 200A and 200B to actively contact the diaphragm 4.

한편, 냉장 리턴덕트(200B)의 바닥면(202)에는 다수개의 지주(230)를 형성하여 요철부(410)를 떠받치게 함으로서 격판(4)이 처지지 않게 한다.On the other hand, the bottom surface 202 of the refrigerated return duct 200B to form a plurality of struts 230 to support the uneven portion 410 so that the plate 4 does not sag.

미설명 부호 120은 제상수를 냉장고 외부로 배출하는 배출구를 나타낸다.Reference numeral 120 denotes an outlet for discharging the defrost water to the outside of the refrigerator.

상기와 같이 구성한 본 발명은, 냉동실(100)의 냉기가 냉동 리턴덕트(200A)를 통해 증발기(3)하부로 순환하고 냉장실(110)의 냉기가 냉장 리턴덕트(200B)를 통하여 증발기(3)하부로 순환하는 것으로, 상기 과정에서 냉동실의 냉기가 냉장실의 냉기보다 더 낮은 온도를 유지하기 때문에 냉동실 냉기와 냉장실 냉기가 전열성이 좋은 격판(4)을 사이에 두고 열교환이 일어난다. 이 과정에서 수분을 비교적 많이 포함하고 있는 냉장실 냉기의 수분이 격판(4)에 응결되거나 또는 착상되어 성에로 변한다. 따라서 냉장 리턴덕트(200B)를 통과하는 냉기중의 수분함량이 현격히 감소하기 때문에 그만큼 증발기에 착상되는 성에량이 감소한다.According to the present invention configured as described above, the cold air in the freezer compartment 100 circulates under the evaporator 3 through the freezing return duct 200A, and the cold air in the refrigerating compartment 110 passes through the refrigerated return duct 200B. By circulating to the bottom, since the cold air of the freezer compartment maintains a lower temperature than the cold air of the refrigerating compartment, heat exchange occurs between the freezer compartment cold and the cold compartment cold air between the plates 4 having good heat transfer. In this process, moisture in the refrigerating compartment cold air, which contains a relatively large amount of moisture, condenses or forms on the diaphragm 4 to become frost. Therefore, since the moisture content in the cold air passing through the refrigerated return duct 200B is significantly reduced, the amount of frost formed on the evaporator is reduced accordingly.

한편 상기 격판에 응결된 수분은 경사진 격판을 따라 증발기 하부쪽의 배수구(120)로 향하게 되고, 또한 냉동실과 냉장실의 온도차가 심하면 격판(4)에 성에가 착상되는데 이때 전열선(5)을 작동하여 그 성에를 녹인 다음 경사진 격판을 따라 배수구(120)로 흐르게 한다.On the other hand, the moisture condensed on the diaphragm is directed toward the drain 120 of the lower side of the evaporator along the inclined diaphragm, and when the temperature difference between the freezer compartment and the refrigerating compartment is severe, frost is formed on the diaphragm 4, by which the heating wire 5 operates. Melt the frost and then flow to the drain 120 along the inclined diaphragm.

이상에서와 같이 본 발명에 따르면 냉동·냉장실내의 냉기중에 포함된 수분을 리턴덕트의 격판으로 1차 제거하여 줌에 따라 증발기의 성에 발생율이 감소하여 그 열교환효율이 향상되며 격판에 성에가 착상되는 경우에는 전열선에 의해 성에를 녹여 경사진 격판에 따라 배수구로 흐르게 하는 것이다. 이와같이 실시되는 발명은 또한 증발기 제상을 위한 전열히터의 작동시간이 단축되어 냉장고 효율이 향상되는 등의 효과가 있다.As described above, according to the present invention, by removing the moisture contained in the cold air in the freezing and refrigerating chamber with the diaphragm of the return duct, the generation rate of the frost in the evaporator is reduced, thereby improving the heat exchange efficiency and forming the frost on the diaphragm. In this case, the frost is melted by the heating wire and flows to the drain according to the inclined partition. The invention thus carried out also has the effect of shortening the operating time of the heat transfer heater for evaporator defrosting to improve the efficiency of the refrigerator.

Claims (2)

냉장실과 냉동실사이의 격판으로 열교환이 가능하도록 한 것에 있어서, 냉장고의 리턴덕트상에 상기 격판을 설치하여 상부의 냉동 리턴덕트와 하부의 냉장 리턴덕트로 분할하며, 상기 격판을 알루미늄 재질로 하고, 그 전열면적을 증가하는 요입부와 요철부를 연속 반복적으로 복수개 형성하며, 상기 각 요입부에는 전열선을 결합하여서 됨을 특징으로 하는 냉장고의 제상장치.In the heat exchange between the refrigerating compartment and the freezing compartment, the diaphragm is installed on the return duct of the refrigerator and divided into an upper refrigeration return duct and a lower refrigeration return duct. The diaphragm is made of aluminum. And a plurality of concave and concave convex portions which increase the heat transfer area are continuously and repeatedly formed, and each of the concave portions has a heating wire coupled thereto. 제 1 항에 있어서, 상기 냉동 리턴덕트의 상면에 상기 각 요입부와 대응하는 돌기를 형성하고, 상기 냉장 리턴덕트의 바닥면에 상기 각 요철부와 대응하는 돌기를 형성하여서 됨을 특징으로 하는 냉장고 제상장치.2. The refrigerator defrost according to claim 1, wherein a protrusion corresponding to each recessed part is formed on an upper surface of the refrigeration return duct, and a protrusion corresponding to each recessed portion is formed on a bottom surface of the refrigerated return duct. Device.
KR1019930017703A 1993-09-04 1993-09-04 Defrosting apparatus of a refrigerator KR0145659B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1019930017703A KR0145659B1 (en) 1993-09-04 1993-09-04 Defrosting apparatus of a refrigerator
BR9403434A BR9403434A (en) 1993-09-04 1994-09-02 System to reduce the formation of frost in a refrigerator
TW83108129A TW246712B (en) 1993-09-04 1994-09-03
CN94117395A CN1111343A (en) 1993-09-04 1994-09-04 System for reducing frost in a refrigerator
JP6234455A JPH0783556A (en) 1993-09-04 1994-09-05 Frosting reducer for refrigerator
AU71684/94A AU685140B2 (en) 1993-09-04 1994-09-05 System for reducing frost in a refrigerator
EP94306536A EP0644385A1 (en) 1993-09-04 1994-09-05 System for reducing frost in a refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930017703A KR0145659B1 (en) 1993-09-04 1993-09-04 Defrosting apparatus of a refrigerator

Publications (2)

Publication Number Publication Date
KR950009185A KR950009185A (en) 1995-04-21
KR0145659B1 true KR0145659B1 (en) 1998-08-17

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Application Number Title Priority Date Filing Date
KR1019930017703A KR0145659B1 (en) 1993-09-04 1993-09-04 Defrosting apparatus of a refrigerator

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KR950009185A (en) 1995-04-21

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