KR100304876B1 - Heat exchanger for refrigerator - Google Patents

Heat exchanger for refrigerator Download PDF

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Publication number
KR100304876B1
KR100304876B1 KR1019980002934A KR19980002934A KR100304876B1 KR 100304876 B1 KR100304876 B1 KR 100304876B1 KR 1019980002934 A KR1019980002934 A KR 1019980002934A KR 19980002934 A KR19980002934 A KR 19980002934A KR 100304876 B1 KR100304876 B1 KR 100304876B1
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KR
South Korea
Prior art keywords
refrigerant
heat exchanger
pipe
pipes
refrigerator
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KR1019980002934A
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Korean (ko)
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KR19990068984A (en
Inventor
박종진
Original Assignee
구자홍
엘지전자주식회사
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Priority to KR1019980002934A priority Critical patent/KR100304876B1/en
Priority to JP23922198A priority patent/JP3223166B2/en
Priority to US09/139,795 priority patent/US6230511B1/en
Priority to CN98120587A priority patent/CN1124458C/en
Publication of KR19990068984A publication Critical patent/KR19990068984A/en
Application granted granted Critical
Publication of KR100304876B1 publication Critical patent/KR100304876B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/124—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and being formed of pins

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Defrosting Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE: A heat exchanger for a refrigerator is provided to reduce the pressure loss in a pipe, to enhance evaporation efficiency, and to save power by simplifying a refrigerant circulating path in a heat exchanger. CONSTITUTION: In a refrigerator has a tri-tube type heat exchanger. The tri-tube type heat exchanger comprises a first and a second refrigerant pipes(500,510), a defrosting pipe(520) integrated with the first and second refrigerant pipes, and cooling fins(530) integrally formed between the refrigerant pipes and the defrosting pipe. The upper portions of the refrigerant pipes are connected with each other via a first connecting pipe(600), and the right end of the heat exchanger is connected via a second connecting pipe. A refrigerant discharge pipe is connected to the upper portion of the first connecting pipe, and a refrigerant inlet pipe is connected to the upper portion of the second connecting pipe. The refrigerant flowing in through the refrigerant inlet pipe dividedly flows in through the first and second refrigerant pipes. Thereafter, the refrigerant is joined in the refrigerant discharge pipe, and is discharged out of the heat exchanger. According to the one-way circulation of the refrigerant, a refrigerant circulating path is simplified.

Description

냉장고용 열교환기{heat exchanger for refrigerator}Heat exchanger for refrigerator

본 발명은 냉장고분야에 관한 것으로서, 더욱 상세하게는 냉장고용 열교환기에 관한 것이다.The present invention relates to the field of refrigerators, and more particularly to a heat exchanger for a refrigerator.

일반적으로 냉장고는 냉매를 압축 ― 응축 ― 팽창 ― 증발시키는 냉동사이클을 반복함에 따라 고내를 저온화시켜 음식물을 장기간동안 신선하게 보관할 수 있도록 한 냉동 냉장장치로서, 요식업소뿐만아니라 일반가정에서도 거의 필수적으로 사용되고 있는 일반화된 가전제품이다.In general, a refrigerator is a refrigeration refrigerating device that allows food to be kept fresh for a long period of time by reducing the temperature in the refrigerator by repeating a refrigeration cycle of compressing, condensing, expanding and evaporating refrigerant. It is a generalized home appliance used.

상기 냉장고의 기본적인 구성을 개략적으로 설명하면 다음과 같다.The basic configuration of the refrigerator will be described below.

다만, 설명과정에서 포함되는 구성요소들은 일반적으로 공지된 사항이므로 도시는 생략하기로 한다.However, components included in the description process are generally known, and thus the illustration is omitted.

냉장고는 저온 저압상태의 가스냉매를 고온 고압상태로 승온 승압시키는 압축기(Compressor)와, 상기 압축기로부터 유입되는 고온 고압가스상태의 냉매를 냉각 응축하여 온도 40℃, 압력 9atm의 액체냉매로 변환시키는 응축기(Condenser)와, 다른 부분의 냉매관 직경에 비해 축관되어 유입되는 냉매를 감압시키는 모세관(Capillary tube)과, 상기 모세관을 통한 냉매를 저온 저압상태로 증발하면서 이에 비해 상대적으로 고온인 고내의 공기와 열교환됨에 따라 고내를 저온화시키는 증발기(Evaporator)등으로 구성되어 있다.The refrigerator includes a compressor for raising and lowering the gas refrigerant of low temperature and low pressure to a high temperature and high pressure state, and a condenser for cooling and condensing the refrigerant of the high temperature and high pressure gas flowing from the compressor into a liquid refrigerant having a temperature of 40 ° C. and a pressure of 9 atm. (Condenser), a capillary tube for depressurizing the refrigerant introduced through the condenser compared to the diameter of the refrigerant tube of the other part, and the air in the refrigerator at a relatively high temperature while evaporating the refrigerant through the capillary at a low temperature and low pressure. It is composed of an evaporator which lowers the inside of the furnace as it is heat exchanged.

상기의 장치들을 필수적으로 갖추고 있는 통상적인 냉장고의 형태는 도 1에서와 같이 냉장고의 외형을 구성하고 있는 단열재인 외부케이스(1)와, 상기 외부케이스의 내측 상부 또는 하부에 위치하며 증발기(이하“열교환기”라 함)(5)에 의해 열교환된 냉기가 직접 유입되어 약 -18℃의 실내온도를 유지하는 냉동실(2)과, 상기 냉동실과 베리어(Barrier)(4)에 의해 구분되며 냉동실측으로부터 냉기가 공급되는 과정에서 열교환됨에 따라 상기 냉동실(2)에 비해 고온(0∼7℃)상태의 실내온도를 유지하는 냉장실(3)로 대별되어 있으며, 상기 냉동실(2)과 냉장실(3)의 전방에는 각 실을 개폐하기 위한 도어(2a)(3a)가 각각 구비되어 있다.The conventional refrigerator is essentially equipped with the above-mentioned devices, as shown in FIG. Cold air heat exchanged by the heat exchanger (5) is introduced into the freezer compartment (2) and the freezer compartment (Barrier) (4) to maintain an indoor temperature of about -18 ℃, the freezer compartment side As it is heat exchanged in the process of supplying cold air from the refrigerator compartment 2 is divided into a refrigerator compartment (3) for maintaining a room temperature of a high temperature (0 ~ 7 ℃) state, compared to the freezer compartment (2), the freezer compartment (2) and the refrigerating compartment (3) In front of the doors, doors 2a and 3a for opening and closing the chambers are respectively provided.

한편, 상기 열교환기(5)는 도 2 에서와 같이 냉매가 흐르는 튜브(50)와, 상기 튜브의 표면에 일정간격으로 무수히 많이 고정되어 증발열을 방열하기 위한 냉각핀(51)과, 상기 냉각핀과 냉각핀사이에 설치되어 튜브(50)와 외기와의 온도차로 인해 발생되는 서리를 제상하기 위한 제상관(52)으로 이루어져 있다.On the other hand, the heat exchanger 5 is a tube 50 through which the refrigerant flows, as shown in FIG. It is installed between the cooling fins and consists of a defrost pipe 52 for defrosting the frost generated by the temperature difference between the tube 50 and the outside air.

이와 같은 열교환기(5)는 직선형의 튜브(50) 외주면에 얇은 판으로 된 냉각핀(51)을 일정간격으로 배열한 다음 튜브(50)를 확관하여 고정시킨후 이를 사형으로 다단절곡한 형상을 이루고 있다.Such a heat exchanger (5) is arranged in a predetermined interval on the cooling fins 51 made of a thin plate on the outer peripheral surface of the straight tube 50, and then fixed by expanding the tube 50 to form a multi-fold bent shape. It is coming true.

그러나 상기와 같은 열교환기는 튜브(50)와 냉각핀(51)의 접촉저항으로 인하여 제상시간이 지연되는등 제상효율이 좋지못한 단점이 있으며, 열교환기의 제작시 별개로 분리되어 있는 튜브(50)와 냉각핀(51)을 고정하기 위한 작업이 필수적으로 이루어져야 했기 때문에 작업공수가 증가하고, 이에 따라 수공비가 많이 들게 되므로 가격경쟁력에서 불리한 조건을 갖고 있었다.However, the heat exchanger as described above has a disadvantage in that the defrosting time is deteriorated due to a delay in the defrosting time due to the contact resistance between the tube 50 and the cooling fins 51. And because the work for fixing the cooling fins (51) had to be made essentially because of the increase in labor and, accordingly, a lot of manual costs, had a disadvantage in the price competitiveness.

상기와 같은 핀 앤드 튜브(Fin & Tube)타입 열교환기의 문제점을 해결하기 위해 도 3에서와 같은 트라이-튜브(Tri-tube)형 열교환기가 개발되었는데, 이 열교환기는 통기성을 향상시킴으로써 열교환효율을 배가시켰으며, 재질이 알루미늄(Al)으로 되어 성형성이 좋으며, 자중을 경량화할 수 있는 등의 장점들이 있다.In order to solve the problems of the fin & tube type heat exchanger as described above, a tri-tube type heat exchanger as shown in FIG. 3 has been developed. The heat exchanger doubles heat exchange efficiency by improving air permeability. The material is made of aluminum (Al), the moldability is good, and there are advantages such as light weight can be reduced.

상기 트라이 튜브형(Tri-tube type) 열교환기의 구성은 도 3에서와 같이 제1, 2 냉매관(500)(510)과, 상기 두 냉매관 사이에 나란하게 배치된 제상관(520)과, 상기 두 냉매관과 제상관 사이에서 이들의 길이방향을 따라 일체로 형성된 냉각핀(Fin)(530)으로 이루어져 있으며, 상기 냉각핀(530)상에는 장공형의 루버(Louvre)(540)가 일정간격으로 무수히 많이 형성되어 있으며, 상기 루버에는 이 루버로 통과하는 공기에 방향성을 부여하기 위해 30∼60°로 경사진 경사판(550)이 루버를 가로질러 형성되어 있고, 일체형으로 된 상기의 제 1, 2 냉매관(500)(510), 제상관(520), 핀(530)을 “U”자형으로 연속반복되게 절곡하여 최종적인 열교환기의 형태를 이루고 있다.The tri-tube type heat exchanger includes a first and second refrigerant pipes 500 and 510 and a defrost pipe 520 disposed side by side between the two refrigerant pipes as shown in FIG. It consists of cooling fins (Fin) 530 integrally formed in the longitudinal direction between the two refrigerant pipes and the defrost pipe, the long louver (Louvre) (540) on the cooling fins (530) a predetermined interval The louver is formed innumerably, and the inclined plate 550, which is inclined at 30 to 60 °, is formed across the louver to impart direction to the air passing through the louver, and the above-mentioned first, 2 refrigerant pipes 500, 510, defrost pipe 520, fin 530 is bent in a continuous "U" shape to form a final heat exchanger.

이와 같은 트라이-튜브형 열교환기의 냉매순환경로는 도 4a에서와 같이 열교환기의 좌측으로부터 우측을 향해 유동하며, 우측 끝부분에 다다르면 다시 좌측을 향해 유동하는 사이클을 이루게 된다.The refrigerant net environment of the tri-tube type heat exchanger flows from the left side to the right side of the heat exchanger as shown in FIG. 4A, and reaches a right end to form a cycle that flows toward the left side again.

이를 도 4a와 4c를 참조하여 좀더 상세히 설명하면, 제 2 냉매관(510)의 좌측 끝단으로 유입된 냉매는 제 2 냉매관의 우측끝단을 향해 유동하고 우측끝단에 도달하게 되면 제 1, 2 냉매관(500)(510)이 연결관(560)에 의해 연결되어 있으므로 이 연결관(560)을 통해 제 1 냉매관(500)으로 유입된다.4A and 4C, the refrigerant flowing into the left end of the second refrigerant pipe 510 flows toward the right end of the second refrigerant pipe and reaches the right end of the first and second refrigerants. Since the pipes 500 and 510 are connected by the connecting pipe 560, the pipes 500 and 510 are introduced into the first refrigerant pipe 500 through the connecting pipe 560.

이렇게 유입된 냉매는 제 1 냉매관(500)의 좌측을 향해 유동하여 좌측 끝단에 형성된 냉매토출관(570)을 통해 압축기(도시는 생략함)로 유입되는 순환과정을 거치게 된다.The introduced refrigerant flows toward the left side of the first refrigerant pipe 500 to undergo a circulation process flowing into the compressor (not shown) through the refrigerant discharge pipe 570 formed at the left end.

그러나 이와 같은 열교환기의 냉매순환구조는 냉매의 입구측과 출구측이 열교환기의 좌측에 몰려있으므로 수많은 “U”자형 밴딩관(냉매관)을 경유하여 우측끝단으로 갔다가 다시 좌측끝단으로 되돌아 와야 하는 순환과정을 거쳐야 한다.However, since the refrigerant circulation structure of the heat exchanger has the inlet and outlet sides of the refrigerant gathered on the left side of the heat exchanger, it has to go to the right end via numerous “U” -shaped banding pipes (refrigerant pipe) and then return to the left end again. It must go through a cycle.

이에 따라 냉매의 압력손실에 의한 에너지 손실을 가져오게 되어 열교환효율을 저하시키는 문제점이 있었다.Accordingly, there is a problem in that energy loss due to pressure loss of the refrigerant is reduced, thereby reducing heat exchange efficiency.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출한 것으로서, 그 목적은 열교환기내를 흐르는 냉매의 순환경로를 단순화하여 열교환효율을 향상시키기 위한 것이다.The present invention has been made to solve the conventional problems as described above, the object is to improve the heat exchange efficiency by simplifying the circulation path of the refrigerant flowing in the heat exchanger.

상기의 목적을 달성하기 위한 본 발명은 나란한 한쌍의 제 1, 2 냉매관과, 상기 두 냉매관 사이에 나란하게 배열된 제상관과, 상기 두 냉매관과 제상관 사이에 형성된 평판형의 냉각핀을 일체로 성형하고, 일체로 된 상기 두 냉매관과 제상관과 냉각핀을 “U”자형으로 연속반복되게 절곡하여 형성된 트라이-튜브형 열교환기를 구비한 냉장고에 있어서; 상기 열교환기를 정면에서 보았을 때 우측단에는 냉매가 유입되는 단일의 냉매유입관을 형성하여 냉매유입관을 통해 유입된 냉매가 제 1, 2 냉매관으로 양분하여 공급되도록 하고, 열교환기의 좌측단에는 단일의 냉매토출관을 형성하여 제 1, 2 냉매관을 통해 양분된 냉매를 하나로 모아 외부로 토출되도록 한 것을 특징으로 하는 냉장고용 열교환기를 제공함에 있다.The present invention for achieving the above object is a pair of first and second refrigerant pipes in parallel, a defrost pipe arranged side by side between the two refrigerant pipes, and a flat cooling fin formed between the two refrigerant pipes and the defrost pipes A refrigerator comprising a tri-tube heat exchanger formed by integrally molding and bending the two refrigerant pipes, the defrost pipe, and the cooling fins integrally repeatedly in a “U” shape; When the heat exchanger is viewed from the front, a single refrigerant inlet tube is formed at the right end to allow refrigerant to flow in, so that the refrigerant introduced through the refrigerant inlet tube is bisected and supplied to the first and second refrigerant tubes, and at the left end of the heat exchanger. It is to provide a heat exchanger for a refrigerator, characterized in that by forming a single refrigerant discharge pipe to collect the refrigerant divided by the first, the second refrigerant pipe into one to be discharged to the outside.

도 1은 일반적인 냉장고의 일예를 도시한 측단면도1 is a side cross-sectional view showing an example of a typical refrigerator.

도 2는 종래 핀 앤드 튜브(Fin & tube)타입 열교환기를 도시한 정면도Figure 2 is a front view showing a conventional fin and tube type heat exchanger

도 3은 종래 트라이-튜브(Tri-tube)타입 열교환기의 일부 사시도3 is a partial perspective view of a conventional tri-tube type heat exchanger

도 4a는 상기 도 3의 정면도4A is a front view of FIG. 3

도 4b는 상기 도 4a의 좌측면도FIG. 4B is a left side view of FIG. 4A

도 4c는 상기 도 4a의 우측면도FIG. 4C is a right side view of FIG. 4A

도 5a는 본 발명 트라이-튜브 열교환기의 좌측면도5A is a left side view of the present invention tri-tube heat exchanger

도 5b는 본 발명 트라이-튜브 열교환기의 우측면도5B is a right side view of the present invention tri-tube heat exchanger

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

500, 510 : 제 1, 2 냉매관 570 : 냉매토출관500, 510: first and second refrigerant pipe 570: refrigerant discharge pipe

600 : 제 1 연결관 600a : 제 2 연결관600: first connector 600a: second connector

580 : 냉매유입관580: refrigerant inlet pipe

이하, 첨부된 도 5a 내지 5b를 참조하여 본 발명의 열교환기에 대해 상세히 설명하면 다음과 같다.Hereinafter, the heat exchanger of the present invention will be described in detail with reference to FIGS. 5A to 5B.

본 발명의 열교환기는 나란한 한쌍의 제 1, 2 냉매관(500)(510)과, 상기 두냉매관 사이에 나란하게 배열된 제상관(520)과, 상기 두 냉매관과 제상관 사이에 형성된 평판형의 냉각핀(530)을 일체로 성형하고, 일체로 된 상기 두 냉매관(500)(510)과 제상관(520)과 냉각핀(530)을 “U”자형으로 연속반복되게 절곡하여 형성된 트라이-튜브형 열교환기를 구비한 냉장고에 있어서;The heat exchanger of the present invention includes a pair of first and second refrigerant pipes 500 and 510 side by side, a defrost pipe 520 arranged side by side between the two refrigerant pipes, and a flat plate formed between the two refrigerant pipes and the defrost pipes. Formed by integrally molding the cooling fins 530 and bending the two refrigerant pipes 500 and 510 and the defrosting pipe 520 and the cooling fins 530 which are integrated into the U-shaped shape. A refrigerator having a tri-tube type heat exchanger;

상기 열교환기를 정면에서 보았을 때 그 우측단에는 냉매가 유입되는 단일의 냉매유입관(580)을 형성하여 냉매유입관을 통해 유입된 냉매가 제 1, 2 냉매관(500)(510)으로 양분하여 공급되도록 하고, 열교환기의 좌측단에는 단일의 냉매토출관(590)을 형성하여 제 1, 2 냉매관(500)(510)을 통해 토출되는 냉매를 하나로 모아 외부로 토출되도록 한 것이다.When the heat exchanger is viewed from the front, a single refrigerant inlet tube 580 is formed at the right end thereof to introduce refrigerant into the first and second refrigerant tubes 500 and 510. A single refrigerant discharge pipe 590 is formed at the left end of the heat exchanger to collect the refrigerant discharged through the first and second refrigerant pipes 500 and 510 into one and discharge it to the outside.

즉, 도 5a 내지 5b에서와 같이 트라이-튜브(Tri-tube)형 열교환기는 제 1, 2 냉매관(500)(510)과, 그 사이에 일체로 형성된 제상관(520)과, 상기 두 냉매관(500)(510)과 제상관(520)사이에 일체로 형성된 냉각핀(530)으로 구성되어 있다.That is, as illustrated in FIGS. 5A to 5B, the tri-tube type heat exchanger includes first and second refrigerant pipes 500 and 510, a defrost pipe 520 integrally formed therebetween, and the two refrigerants. Consists of a cooling fin 530 integrally formed between the pipe (500) 510 and the defrost pipe (520).

상기 열교환기를 도 4a를 기준하여 좌측에서 보면 도 4b에서와 같이 제 1, 2 냉매관(500)(510)의 상부가 제 1 연결관(600)에 의해 서로 연결되어 있으며, 열교환기의 우측단도 제 2 연결관(600a)에 의해 연결되어 있다.When the heat exchanger is viewed from the left side with reference to FIG. 4A, upper portions of the first and second refrigerant pipes 500 and 510 are connected to each other by the first connection pipe 600, as shown in FIG. It is connected by the 2nd connection pipe 600a.

상기 제 1 연결관(600)의 상부에는 냉매가 외부로 토출되는 냉매토출관(590)이 연결되어 있으며, 제 2 연결관(600a)의 상부에는 냉매유입관(580)이 연결되어 있다.A refrigerant discharge pipe 590 through which the refrigerant is discharged to the outside is connected to an upper portion of the first connection pipe 600, and a refrigerant inlet pipe 580 is connected to an upper portion of the second connection pipe 600a.

따라서, 상기 냉매유입관(580)으로 유입된 냉매는 “∩”형의 제 2연결관(600a)에 의해 제 1, 2 냉매관(500)(510)으로 양분되어 유입되어 도 4a의 좌측으로 이동되다가 제 1, 2 냉매관(500)(510)의 좌측 상단에 형성된 제 1 연결관(600)을 통해 냉매토출관(590)으로 합류되어 열교환기의 외부로 토출된다.Therefore, the refrigerant introduced into the refrigerant inlet pipe 580 is bisected into the first and second refrigerant pipes 500 and 510 by the second connection pipe 600a of the “∩” type and flows to the left side of FIG. 4A. After being moved, the first and second refrigerant pipes 500 and 510 are joined to the refrigerant discharge pipe 590 through the first connection pipe 600 formed at the upper left and are discharged to the outside of the heat exchanger.

그러므로 열교환기 내에서의 냉기순환은 종래에는 왕복운동이었다면 본 발명은 편도운동이므로 냉매의 순환경로를 단순화할 수 있게 된다.Therefore, if the cold air circulation in the heat exchanger is conventionally a reciprocating motion, since the present invention is a one-way motion, the circulation path of the refrigerant can be simplified.

이상과 같은 본 발명의 열교환기를 적용함으로써 열교환기 내에서의 냉매순환경로를 단순화하여 관 내측 압력손실을 줄이는 효과가 있다.By applying the heat exchanger of the present invention as described above it has the effect of reducing the pressure loss inside the pipe by simplifying the refrigerant coolant environment path in the heat exchanger.

또한 상기의 효과에 의해 증발성능의 향상 및 소비전력절감의 효과도 얻을 수 있다.In addition, the effect of the above-mentioned improvement in evaporation performance and power consumption can be obtained.

Claims (1)

나란한 한쌍의 제 1, 2 냉매관과, 상기 두 냉매관 사이에 나란하게 배열된 제상관과, 상기 두 냉매관과 제상관 사이에 형성된 평판형의 냉각핀을 일체로 성형하고, 일체로 된 상기 두 냉매관과 제상관과 냉각핀을 “U”자형으로 연속반복되게 절곡하여 형성된 트라이-튜브형 열교환기를 구비한 냉장고에 있어서;A pair of parallel first and second refrigerant pipes, a defrost pipe arranged side by side between the two refrigerant pipes, and a flat plate-like cooling fin formed between the two refrigerant pipes and the defrost pipes integrally and integrally A refrigerator having a tri-tube heat exchanger formed by continuously bending two refrigerant tubes, a defrost tube, and a cooling fin in a “U” shape; 상기 열교환기를 정면에서 보았을 때 우측단에는 냉매가 유입되는 단일의 냉매유입관을 형성하여 냉매유입관을 통해 유입된 냉매가 제 1, 2 냉매관으로 양분하여 공급되도록 하고, 열교환기의 좌측단에는 단일의 냉매토출관을 형성하여 제 1, 2 냉매관을 통해 양분된 냉매를 하나로 모아 외부로 토출되도록 한 것을 특징으로 하는 냉장고용 열교환기.When the heat exchanger is viewed from the front, a single refrigerant inlet tube is formed at the right end to allow refrigerant to flow in, so that the refrigerant introduced through the refrigerant inlet tube is bisected and supplied to the first and second refrigerant tubes, and at the left end of the heat exchanger. A heat exchanger for a refrigerator, wherein a single refrigerant discharge pipe is formed to collect the refrigerant divided by the first and second refrigerant pipes into one and discharge them to the outside.
KR1019980002934A 1997-08-26 1998-02-03 Heat exchanger for refrigerator KR100304876B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019980002934A KR100304876B1 (en) 1998-02-03 1998-02-03 Heat exchanger for refrigerator
JP23922198A JP3223166B2 (en) 1997-08-26 1998-08-25 refrigerator
US09/139,795 US6230511B1 (en) 1997-08-26 1998-08-25 Evaporator in refrigerator
CN98120587A CN1124458C (en) 1997-08-26 1998-08-26 Evaporator in refrigerator

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KR1019980002934A KR100304876B1 (en) 1998-02-03 1998-02-03 Heat exchanger for refrigerator

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KR19990068984A KR19990068984A (en) 1999-09-06
KR100304876B1 true KR100304876B1 (en) 2001-09-24

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