KR870002911Y1 - Evaporator of refrigerator - Google Patents

Evaporator of refrigerator Download PDF

Info

Publication number
KR870002911Y1
KR870002911Y1 KR2019840007563U KR840007563U KR870002911Y1 KR 870002911 Y1 KR870002911 Y1 KR 870002911Y1 KR 2019840007563 U KR2019840007563 U KR 2019840007563U KR 840007563 U KR840007563 U KR 840007563U KR 870002911 Y1 KR870002911 Y1 KR 870002911Y1
Authority
KR
South Korea
Prior art keywords
evaporator
fins
heat transfer
heating tube
refrigerator
Prior art date
Application number
KR2019840007563U
Other languages
Korean (ko)
Other versions
KR860003030U (en
Inventor
김인영
호정환
Original Assignee
대우전자주식회사
김용원
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.)
Filing date
Publication date
Application filed by 대우전자주식회사, 김용원 filed Critical 대우전자주식회사
Priority to KR2019840007563U priority Critical patent/KR870002911Y1/en
Publication of KR860003030U publication Critical patent/KR860003030U/en
Application granted granted Critical
Publication of KR870002911Y1 publication Critical patent/KR870002911Y1/en

Links

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
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators

Abstract

내용 없음.No content.

Description

냉장고용 증발기Evaporator for Refrigerator

제1도는 본고안에 의한 냉장고용 증발기의 부분 사시도.1 is a partial perspective view of an evaporator for a refrigerator according to the present invention.

제2도는 동 부분 정면도.2 is a front view of the same part.

제3도는 본고안에 사용되는 가열관의 단면도.3 is a cross-sectional view of a heating tube used in the present article.

제4도는 종래 증발기의 일예를 도시하는 부분 정면도.4 is a partial front view showing an example of a conventional evaporator.

제5도는 제4도의 가-가선 단면도.5 is a cross-sectional view of FIG.

제6도는 종래 다른 예를 도시하는 부분 정면도.6 is a partial front view showing another conventional example.

제7도는 제6도의 나-나선 단면도.7 is a helical cross-sectional view of FIG.

제8도는 종래 또 다른 예를 도시하는 부분 정면도.8 is a partial front view showing another conventional example.

제9도는 제8도의 예에 사용되는 핀의 측면도.9 is a side view of the pin used in the example of FIG.

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

1 : 냉매관 2 : 가열관1: refrigerant tube 2: heating tube

3 : 냉매관 삽입용칼라공 4 : U형 전열판3: Refrigerant pipe insert color ball 4: U type heat transfer plate

5 : 소편핀 6 : 닥트5: small pin 6: duct

본 고안은 냉장고용 증발기에 관한 것으로 특히 제상기구가 설치된 냉장고용 증발기의 개량에 관한 것이다.The present invention relates to an evaporator for a refrigerator and in particular to an improvement of an evaporator for a refrigerator provided with a defrosting mechanism.

일반적으로 냉장고나 냉동고의 증발기는 표면온도가 0℃ 이하로 되어 사용시 그 표면에 서리가 생기게 되므로 전기 히터가 내장된 가열관 등의 제상기구를 설치하여 표면에 결착된 서리를 제거함으로써 착상(着霜)에 의한 풍량의 감소 및 냉각 능력 저하 등을 방지할 필요가 있다.Generally, the evaporator of a refrigerator or a freezer has a surface temperature of 0 ° C. or lower, and when it is used, frost is generated on the surface thereof. Thus, a defroster such as a heating tube with an electric heater is installed to remove frost from the surface. It is necessary to prevent a decrease in the amount of air flow and a decrease in cooling capacity due to

종래 이러한 목적을 달성하기 위해서 다양한 증발기가 안출되어 있으나, 이들은 다음과 같이 많은 문제점이 있었다.Conventionally, various evaporators have been devised to achieve this purpose, but these have many problems as follows.

즉, 제4도 및 제5도에 도시한 바와 같이, 냉매관(11)과, 히터(12')가 내장된 히터관(12)을 삽지하기 위한 U자형 삽지홈(13)(14)이 교호로 형성된 평판상의 기다란 핀(Fin)(15)을 닥트(16) 내에 설치한 것이었으나, 이는 대경의 냉매관(11)을 끼우기 위해서는 삽지홈(13)의 성형을 위한 타발(打拔) 작업시 소재의 손실이 크며, 전열면적이 축소될 뿐 아니라, 냉매관(11)과 핀(15) 간의 접촉 면적이 적기 때문에 접촉열 저항이 커져서 전열기능이 저하되는 폐단이 있었다.That is, as shown in Figs. 4 and 5, the U-shaped insertion grooves 13 and 14 for inserting the refrigerant pipe 11 and the heater pipe 12 in which the heater 12 'is embedded are provided. An alternating plate-shaped long fin 15 was installed in the duct 16. However, in order to insert the large diameter refrigerant pipe 11, the punching work for forming the insertion groove 13 was performed. The loss of the starting material, the heat transfer area is reduced, as well as the contact area between the refrigerant pipe 11 and the fin 15 is small, the contact heat resistance is increased, there was a closed end of the heat transfer function is reduced.

또한 제6도 및 제7도에 도시한 바와 같이, 냉매관(21)을 관삽하는 삽입공(23)과, 히터관(22)을 삽지하기 위한 U자형 삽지홈(24)을 형성한 평판상의 기다란 핀(25)로 구성된 것이 있었으나, 이는 냉매관 삽입용 칼라(27)와 헤어핀 튜브(hairpin tube)(28)가 별도로 필요하며 이들을 용접해야 하므로 제조공정이 복잡해지고, 용접부에서 냉매의 유동저항이 증대되고 용접작업의 불량 및 용접부의 부식에 따른 냉매누설등의 문제가 있었다.In addition, as shown in FIG. 6 and FIG. 7, the flat plate which formed the insertion hole 23 for inserting the refrigerant pipe 21, and the U-shaped insertion groove 24 for inserting the heater pipe 22 is formed. Although there were ones composed of elongated fins 25, this requires a separate refrigerant pipe insert collar 27 and a hairpin tube 28 and welds them, which complicates the manufacturing process and increases the flow resistance of the refrigerant in the weld. There was a problem of increased refrigerant leakage due to poor welding work and corrosion of the weld.

또한 이들 종래 증발기에 있어서는 닥트(16)(26)의 기류유입구로부터 유출부까지 핀의 주요부가 연속되어 전열대표 치수가 길어지므로 기류 유출측에서는 온도 경계층이 두껍게 형성되어 평균적인 열전달율이 크게 저하되는 폐단이 있다.In these conventional evaporators, since the main portion of the fin continues from the air inlet to the outlet of the ducts 16 and 26, the heat transfer representative dimension is increased, so that the temperature boundary layer is formed thick at the airflow outlet, so that the average heat transfer rate is greatly reduced. have.

이들의 폐단 및 문제점을 제거하기 위해 특히 공고 제84-788호와 같은 증발기가 일본의(주)히다찌제작소에 의해 안출되어 있으며, 이는 제8도 및 제9도에 도시한 바와 같이, 냉매관(31)을 관삽하는 한쌍의 삽입용 칼라공(33)과, 네모서리에 가열관(32)에 접촉되는 협지부(34)가 형성된 소편의 핀(35)을 다수이용하여 냉매관(31)과 가열관(32)을 지지하는 것으로 닥트(36)의 기류 유입축과 유출측의 착상량에 따라 착상이 많은 곳에는 핀(35)의 간격을 크게하여 착상에 따른 통풍저항의 증대를 방지하고 적은 곳에는 핀(35)의 간격을 작게하여 전열면적을 증대시키도록 한 것이나, 이 또한 제상을 위한 가열관(32)과 핀(35)간의 접촉면적이 적어서 열전달량이 적게 되므로 효율적인 제상능력을 발휘할 수 없는 폐단이 있었다.In order to eliminate these shortcomings and problems, an evaporator such as Gazette No. 84-788 has been devised by Hitachi Co., Ltd. of Japan, which is a refrigerant tube (as shown in FIGS. 8 and 9). 31 and a refrigerant pipe 31 by using a plurality of small-sized pins 35 formed with a pair of insertion collar holes 33 for inserting the pipes 31 and a clamping portion 34 in contact with the heating tube 32 at the corners. By supporting the heating tube 32, the spacing of the fins 35 is increased in places where there is a lot of frosting according to the amount of frost on the airflow inlet shaft and the outflow side of the duct 36 to prevent an increase in ventilation resistance due to the frosting. In this case, the spacing of the fins 35 is increased to increase the heat transfer area. However, since the contact area between the heating tube 32 and the fins 35 for defrosting is small, the amount of heat transfer is small, so that efficient defrosting ability can be exhibited. There was no closure.

본고안은 종래 이러한 제반 폐단 및 문제점을 해소하기 위하여 안출된 것으로 이를 첨부도면에 따라서 상세히 설명하면 다음과 같다.The present invention has been devised in order to solve these problems and problems, which will be described in detail according to the accompanying drawings.

즉, 본고안은 제1도 내지 제3도에 도시한 바와 같이, 냉매관(1)이 관삽되는 삽입용 칼라공(3)이 형성되고 네모서리에 가열관(2)이 협지되는 소편핀(5)을 닥트(6)내에 기류유입측과 유출측에서의 간격을 착상량에 비례하여 달리 하여서되는 통상의 것에 있어서, 인접하는 핀(5)의 네모서리 사이에 가열관(2)이 협삽되는 U형 전열판(4)을 계산하여서 된 것이다.That is, the present invention, as shown in Figures 1 to 3, the small collar pin (3) is formed in the insertion collar hole (3) through which the refrigerant pipe (1) is inserted and the heating tube (2) is sandwiched in the corner ( 5) The U-shape in which the heating tube 2 is interposed between the four corners of the adjacent fins 5 in a conventional one in which the distance between the airflow inlet side and the outlet side in the duct 6 is changed in proportion to the amount of implantation. The heat transfer plate 4 was calculated.

이와 같이 구성된 본고안은 냉매관(1)과 가열관(2)을 다수의 소편핀(5)을 이용하여 지지하므로써 상술한 히다찌 특허에서와 같이 닥트(6)의 기류유입측과 유출측중 착상량이 많은 곳에는 핀(5)의 간격을 크게하여 기류의 통풍저항을 감소시키고 적은 곳에는 핀(5)의 간격을 작게하여 전열면적을 크게하므로써, 제4도 내지 제7도에 도시한 종래의 증발기에서의 문제점인, 닥트내의 기류의 유입측에서 유출측까지 핀이 일체로 연속되어 전열 대표치수의 증대에 따라 유출측에서의 온도경계층이 두껍게 발달되어 평균적인 열전달율이 저하되는 것을 방지할 수 있으며, 또한 제6도 및 제7도에 도시한 종래 증발기에서와 같이 냉매관 삽입용 칼라(27)와 헤어핀 튜브(28)간의 용접작업이 필요치 않게 되어 제작공정의 간소화와 원가 절감을 기할 수 있으며, 용접부에서의 냉매유동 저항과 부식에 의한 냉매유출 등을 방지할 수 있다.In this manner, the present invention supports the refrigerant pipe (1) and the heating pipe (2) by using a plurality of small pieces of pin (5), so that the concept of the airflow inlet and outlet side of the duct (6), as in the Hitachi patent described above Where the amount is large, the spacing resistance of the airflow is reduced by increasing the spacing of the fins 5, and the spacing of the fins is reduced by increasing the heat transfer area by decreasing the spacing of the fins 5 in a small place, thereby increasing the heat transfer area. Fins are continuously integrated from the inflow side to the outflow side of the airflow in the duct, which is a problem in the evaporator, so that the temperature boundary layer at the outflow side becomes thicker as the representative heat transfer dimension increases, and the average heat transfer rate can be prevented from being lowered. As in the conventional evaporator shown in FIGS. 6 and 7, the welding work between the refrigerant pipe inserting collar 27 and the hairpin tube 28 is not required, thereby simplifying the manufacturing process and reducing the cost. Of it is possible to prevent such refrigerant leakage caused by the refrigerant flow resistance and corrosion.

또한, 히다찌 특허에서와는 달리 핀(5)의 네모서리에 U형 전열판(4)을 개재하여 가열관(2)을 접촉시켰으므로 가열관(2)과 핀(5)간의 전열면적이 대폭증대되어 신속하고 균일한 제상능력을 발휘할 수 있는 것이다.In addition, unlike the Hitachi patent, since the heating tube 2 is brought into contact with the four corners of the fin 5 via the U-shaped heat transfer plate 4, the heat transfer area between the heating tube 2 and the fin 5 is greatly increased and rapidly. And can exhibit a uniform defrosting ability.

또 가열관(2)과 핀(5)이 견고하게 접촉되어 핀(5)과 가열관(2)간에 변형이 생기지 않고 항상 일정한 상태로 유지되는 것이다.In addition, the heating tube 2 and the fins 5 are firmly in contact with each other, so that no deformation occurs between the fins 5 and the heating tube 2 and is always maintained in a constant state.

이상과 같이 본고안에 의하면 다수의 소편핀을 이용하여 닥트의 기류 유입측과 유출측에서의 핀의 간격을 달리하므로써 착상에 의한 통풍 저항의 증대를 방지함과 동시에 가열관과 핀간의 접촉면적을 크게하여 열전달을 증대시키므로써 신속하고 균일한 제상을 할 수 있는 효과가 있는 것이다.As described above, according to the present proposal, by using a plurality of small pieces of fins, the gap between the fins at the inflow and outflow sides of the duct prevents the increase in ventilation resistance due to frosting and increases the contact area between the heating tube and the fins. By increasing the effect is to make a quick and uniform defrost.

Claims (1)

냉매관(1)이 관삽되는 삽입용 칼라공(3)이 형성되고 네모서리에 가열관(2)이 협지되는 소편핀(5)을 닥트(6) 내에 기류 유입측과 유출측에서의 간격을 착상량에 비례하여 달리하여서 되는 통상의 것에 있어서,인접하는 핀(5)의 네모서리 사이에 가열관(2)이 협삽되는 U형 전열판(4)을 개삽하여서 된 것을 특징으로 하는 냉장고용 증발기.Insertion collar hole (3) into which the refrigerant pipe (1) is inserted is formed, and the small piece pin (5) in which the heating tube (2) is sandwiched in the corners is implanted in the duct (6). The evaporator for refrigerators characterized by inserting the U-shaped heat exchanger plate (4) by which the heating pipe (2) is inserted between the four corners of the adjacent fin (5).
KR2019840007563U 1984-08-03 1984-08-03 Evaporator of refrigerator KR870002911Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019840007563U KR870002911Y1 (en) 1984-08-03 1984-08-03 Evaporator of refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019840007563U KR870002911Y1 (en) 1984-08-03 1984-08-03 Evaporator of refrigerator

Publications (2)

Publication Number Publication Date
KR860003030U KR860003030U (en) 1986-03-31
KR870002911Y1 true KR870002911Y1 (en) 1987-08-26

Family

ID=19236441

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019840007563U KR870002911Y1 (en) 1984-08-03 1984-08-03 Evaporator of refrigerator

Country Status (1)

Country Link
KR (1) KR870002911Y1 (en)

Also Published As

Publication number Publication date
KR860003030U (en) 1986-03-31

Similar Documents

Publication Publication Date Title
JPS589911B2 (en) Evaporator for refrigerator
US5186022A (en) Evaporator structure for refrigerator-freezer
KR900006245B1 (en) Heat exchanger
KR870002911Y1 (en) Evaporator of refrigerator
KR870001630Y1 (en) Evaporator for refrigerator
KR100366451B1 (en) Evaporator combined with dual-tube and fins for refrigerator
JPS6183890A (en) Heat exchanger for freezing machine
KR840000788B1 (en) Evaporator for freezer
KR20020038005A (en) Conductible fin for evaporator
JP3886244B2 (en) Heat exchanger
KR100344802B1 (en) vaporiger for refrigerator
JPS6099978A (en) Defroster for evaporator for refrigerator
JPS593249Y2 (en) Heat exchanger with plate fins
KR0119416Y1 (en) Heat exchanger structure for refrigerator
JPS5918296Y2 (en) refrigerator
RU2072488C1 (en) Air cooler
KR890005980Y1 (en) Evaporator with defrost heater
JP2001124459A (en) Heat carrying circuit
KR100517603B1 (en) Heat-exchanger
KR0145659B1 (en) Defrosting apparatus of a refrigerator
KR20020086143A (en) Evap0rator for refrigerator
KR20020021912A (en) Conductible tube for evaporator
JPH01244268A (en) Refrigerator
KR200178429Y1 (en) Circulating device of a cooling air
KR20000060550A (en) Tri-tube type heat exchanger for Evaporator

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19990731

Year of fee payment: 13

EXPY Expiration of term