KR100752635B1 - Heat exchanger for refrigerator - Google Patents

Heat exchanger for refrigerator Download PDF

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Publication number
KR100752635B1
KR100752635B1 KR1020060039724A KR20060039724A KR100752635B1 KR 100752635 B1 KR100752635 B1 KR 100752635B1 KR 1020060039724 A KR1020060039724 A KR 1020060039724A KR 20060039724 A KR20060039724 A KR 20060039724A KR 100752635 B1 KR100752635 B1 KR 100752635B1
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KR
South Korea
Prior art keywords
refrigerant
guide tube
refrigerator
heat exchanger
refrigerant guide
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Application number
KR1020060039724A
Other languages
Korean (ko)
Inventor
김승진
남승원
배수용
김혁중
Original Assignee
삼성광주전자 주식회사
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Priority to KR1020060039724A priority Critical patent/KR100752635B1/en
Priority to EP07250621A priority patent/EP1852668A3/en
Priority to US11/710,981 priority patent/US20070256448A1/en
Priority to CN2007100863792A priority patent/CN101067530B/en
Application granted granted Critical
Publication of KR100752635B1 publication Critical patent/KR100752635B1/en

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    • 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
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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
    • F25B39/00—Evaporators; Condensers
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • 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
    • F28F1/24—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 extending transversely
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means

Abstract

A heat exchanger for a refrigerator is provided to improve the heat exchange efficiency between a refrigerant flowing in a refrigerant guide pipe and external air by allowing the refrigerant to flow equally along the entire inner wall of the refrigerant guide pipe. A heat exchanger for a refrigerator includes a refrigerant guide pipe(30) guiding a refrigerant, and a plurality of heat exchange fins(40) formed on an outer periphery of the refrigerant guide pipe to increase a heat exchange area of the refrigerant guide pipe. A turbulent flow forming member(60) is installed in the refrigerant guide pipe and induce a turbulent flow of the refrigerant in the refrigerant guide pipe. The refrigerant guide pipe combined with the heat exchange fins and the turbulent flow forming member is bent in a zigzag manner. The turbulent flow forming member is made of an elastically transformable material and is fixed in the refrigerant guide pipe in the process of bending the refrigerant guide pipe.

Description

냉장고용 열교환기 {HEAT EXCHANGER FOR REFRIGERATOR}Heat Exchanger for Refrigerator {HEAT EXCHANGER FOR REFRIGERATOR}

도 1은 종래 냉장고용 열교환기의 요부 구조를 도시한 단면도이다. 1 is a cross-sectional view showing the main structure of a conventional heat exchanger for a refrigerator.

도 2는 종래 냉장고용 열교환기의 요부 구조를 도시한 단면도로, 냉매안내관을 따라 유동하는 냉매의 흐름이 층류를 형성한 상태를 나타낸 것이다. Figure 2 is a cross-sectional view showing the main structure of a conventional heat exchanger for a refrigerator, and shows a state in which the flow of the refrigerant flowing along the refrigerant guide tube forms a laminar flow.

도 3은 본 발명의 바람직한 일 실시예에 따른 냉장고의 전체적인 구조를 개략적으로 도시한 측단면도이다.Figure 3 is a side cross-sectional view schematically showing the overall structure of a refrigerator according to an embodiment of the present invention.

도 4는 본 발명의 바람직한 일 실시예에 따른 냉장고에 있어서, 냉동사이클의 구성을 도시한 구성도이다. 4 is a block diagram showing the configuration of a refrigeration cycle in the refrigerator according to an embodiment of the present invention.

도 5는 본 발명의 바람직한 일 실시예에 따른 냉장고용 열교환기의 구조를 도시한 사시도이다.5 is a perspective view showing the structure of a heat exchanger for a refrigerator according to an embodiment of the present invention.

도 6은 도 5의 요부를 발취하여 도시한 측단면도이다.6 is a side cross-sectional view showing the main portion of FIG.

도 7은 도 5를 절취선 A-A를 따라 절취한 후 화살표 방향에서 바라본 단면도이다. FIG. 7 is a cross-sectional view taken along the line A-A of FIG. 5 and viewed from the arrow direction.

도 8 내지 도 10은 도 5의 냉장고용 열교환기의 조립과정 중 일부를 순서대로 도시한 단면도 및 사시도이며, 도 10은 냉매안내관의 일부를 절개하여 도시한 것이다.8 to 10 are cross-sectional views and perspective views sequentially illustrating a part of an assembly process of the refrigerator heat exchanger of FIG. 5, and FIG. 10 is a cutaway view of a portion of a refrigerant guide tube.

도 11 내지 도 13은 본 발명의 다른 실시예에 따른 난류유도부재의 구조를 각각 도시한 사시도이다. 11 to 13 are perspective views each showing a structure of a turbulence guide member according to another embodiment of the present invention.

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

3: 압축기 4: 응축기3: compressor 4: condenser

5: 모세관 6: 증발기5: capillary 6: evaporator

8: 모세관 10: 본체8: capillary 10: body

30: 냉매안내관 40: 열교환핀30: refrigerant guide tube 40: heat exchange fin

60,60,60´´´: 난류유도부재60,60,60´´´: Turbulent induction member

본 발명은 냉장고용 열교환기에 관한 것으로, 더욱 상세하게는 냉매안내관을 따라 흐르는 냉매의 유동이 난류를 형성하도록 하여 열교환 효율이 향상되도록 한 냉장고용 열교환기에 관한 것이다.The present invention relates to a heat exchanger for a refrigerator, and more particularly, to a heat exchanger for a refrigerator to improve the heat exchange efficiency by allowing the flow of the refrigerant flowing along the refrigerant guide tube to form a turbulent flow.

일반적으로 냉장고는 냉동사이클의 증발기를 통해 생성된 냉기로 저장실을 냉각시킴으로써, 저장실에 저장된 저장물이 냉장 또는 냉동 상태로 보관되도록 하는 장치이다.In general, a refrigerator is a device that cools a storage compartment with cold water generated through an evaporator of a refrigeration cycle, so that the storage stored in the storage compartment is stored in a refrigerated or frozen state.

냉동사이클은 압축기와 응축기 및 모세관과 증발기가 냉매관을 통해 폐회로를 이루도록 마련되는데, 이중 압축기는 냉매를 고온고압의 기체상태로 압축시키고, 응축기는 압축기로부터 전달된 냉매를 고온고압의 액체상태로 응축시키며, 응축기에서 응축된 고온고압의 액체상태 냉매는 상기 모세관을 거치는 과정에서 교축 팽창되며 저온 저압의 액체상태 냉매가 되고, 증발기는 모세관을 거친 저온 저압의 액체상태 냉매를 증발시켜 저온 저압의 기체상태 냉매가 되도록 하며, 상기 증발기는 저장실 후방 내측에 설치된다.The refrigeration cycle is provided so that the compressor, the condenser, the capillary tube and the evaporator form a closed circuit through the refrigerant tube. The dual compressor compresses the refrigerant into a gaseous state of high pressure and high pressure, and the condenser condenses the refrigerant delivered from the compressor into the high temperature and high pressure liquid state. The high temperature and high pressure liquid refrigerant condensed in the condenser is throttled and expanded to become a low temperature low pressure liquid refrigerant through the capillary tube, and the evaporator evaporates the low temperature low pressure liquid refrigerant through the capillary tube to form a low temperature low pressure gaseous state. The evaporator is installed inside the storage compartment behind the refrigerant chamber.

따라서 냉동사이클을 순환하는 냉매는 응축기에서 응축되면서 주위로 열을 방출하고, 증발기에서 증발되면서 저장실 내부 공기의 열을 흡수하게 되며, 저장실의 공기는 이러한 증발기와 열교환하면서 냉기로 전환된다. Therefore, the refrigerant circulating in the refrigeration cycle condenses in the condenser and releases heat to the surroundings, and the evaporator absorbs the heat of the air in the storage compartment while evaporating in the evaporator.

여기서 증발기와 응축기는 냉장고용 열교환기를 형성하게 되는데, 이러한 냉장고용 열교환기는 도 1에 도시된 바와 같이, 통상의 냉매관으로 형성되는 냉매안내관(1)과, 열교환면적을 증대시키도록 상기 냉매안내관(1)의 외주에 결합되는 복수개의 열교환핀(2)을 구비하며, 상기 냉매안내관(1)은 단면이 원형으로 마련되는 일반적인 파이프형상을 취하게 된다. Here, the evaporator and the condenser form a heat exchanger for a refrigerator. The refrigerator heat exchanger, as shown in FIG. 1, has a refrigerant guide tube 1 formed of a conventional refrigerant pipe, and the refrigerant guide to increase a heat exchange area. It is provided with a plurality of heat exchange fins (2) coupled to the outer periphery of the pipe (1), the refrigerant guide pipe (1) is to take the general pipe shape having a circular cross section.

그러나 이러한 종래 냉장고용 열교환기는 상기 냉매안내관(1)이 단순한 원형 단면의 파이프형상으로 마련되어 냉매안내관(1)을 따라 유동하는 냉매의 흐름이 층류를 형성하기 때문에, 도 2에 도시된 바와 같이 냉매안내관(1) 내벽에 근접한 냉매(a)는 주위공기와 활발히 열교환되는 반면 냉매안내관(1) 안쪽 냉매(b)는 주위공기와 열교환이 어렵게 되는 등 냉매안내관(1)을 따라 유동하는 냉매가 주위공기와 골고루 열교환되지 못하게 되어 열교환효율이 저하되는 문제점이 있었다.However, such a conventional heat exchanger for a refrigerator has the refrigerant guide tube 1 formed in a pipe shape having a simple circular cross section so that the flow of the refrigerant flowing along the refrigerant guide tube 1 forms a laminar flow, as shown in FIG. 2. The refrigerant (a) near the inner wall of the refrigerant guide tube (1) actively exchanges heat with the surrounding air, while the refrigerant (b) inside the refrigerant guide tube (1) flows along the refrigerant guide tube (1) such that heat exchange with the ambient air becomes difficult. Since the refrigerant is not evenly exchanged with the ambient air, there was a problem that the heat exchange efficiency is lowered.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 이러한 본 발명은 목적은 냉매안내관을 따라 유동하는 냉매의 흐름을 개선하여 열교환효율이 향상되도 록 마련된 냉장고용 열교환기를 제공하는 것이다. The present invention is to solve such a problem, an object of the present invention is to provide a refrigerator heat exchanger is provided to improve the heat exchange efficiency by improving the flow of the refrigerant flowing along the refrigerant guide tube.

이러한 목적을 달성하기 위한 본 발명에 따른 냉장고용 열교환기는 냉매를 안내하는 냉매안내관과, 상기 냉매안내관의 열교환면적을 증대시키도록 상기 냉매안내관의 외주에 마련된 복수개의 열교환핀을 구비하고, 상기 냉매안내관의 내부에는 상기 냉매안내관을 따라 유동하는 냉매의 흐름이 난류를 형성하도록 냉매의 흐름을 유도하는 난류유도부재가 마련된 것을 특징으로 한다. The heat exchanger for a refrigerator according to the present invention for achieving the above object comprises a refrigerant guide tube for guiding the refrigerant and a plurality of heat exchange fins provided on the outer periphery of the refrigerant guide tube to increase the heat exchange area of the refrigerant guide tube, Inside the coolant guide tube is characterized in that the turbulence inducing member for inducing the flow of the coolant to guide the flow of the coolant flowing along the coolant guide tube to form a turbulent flow.

그리고 상기 난류유도부재는 상기 냉매안내관의 길이방향을 따라 배치된 것을 특징으로 한다 .And the turbulence guide member is characterized in that it is disposed along the longitudinal direction of the refrigerant guide pipe.

또한 상기 난류유도부재는 지그재그방식으로 밴딩된 와이어를 포함하는 것을 특징으로 한다. In addition, the turbulence induction member is characterized in that it comprises a wire banded in a zigzag manner.

또한 상기 난류유도부재는 코일스프링형태로 마련된 것을 특징으로 한다. In addition, the turbulence induction member is characterized in that it is provided in the form of a coil spring.

또한 상기 난류유도부재는 비틀려진 형태의 판상으로 마련된 것을 특징으로 한다. In addition, the turbulence induction member is characterized in that it is provided in a plate shape of the twisted form.

또한 상기 난류유도부재에는 외주에 상기 냉매안내관을 따라 유동하는 냉매의 흐름과 교차하는 방향으로 돌출된 복수개의 돌기가 형성된 것을 특징으로 한다. In addition, the turbulence guide member is characterized in that the outer periphery is formed with a plurality of protrusions protruding in the direction intersecting the flow of the refrigerant flowing along the refrigerant guide tube.

또한 상기 냉장고용 열교환기는 직선형태를 유지하는 상기 냉매안내관 외주에 상기 열교환핀을 결합시키고 상기 냉매안내관에 상기 난류유도부재를 삽입한 상태에서 상기 냉매안내관을 지그방식으로 밴딩시켜 마련되고, 상기 난류유도부재는 탄성변형 가능한 재질로 형성되어 상기 냉매안내관이 밴딩되는 과정에서 상기 냉매안내관 내부에 위치가 고정된 것을 특징으로 한다. In addition, the heat exchanger for the refrigerator is provided by coupling the heat exchange fins to the outer circumference of the refrigerant guide tube maintaining a straight shape and bending the refrigerant guide tube in a jig manner while inserting the turbulent induction member into the refrigerant guide tube. The turbulence guide member is formed of an elastically deformable material, and the position is fixed inside the refrigerant guide tube during the bending of the refrigerant guide tube.

또한 본 발명에 있어서 상기 냉장고용 열교환기는 냉장고의 냉동사이클에 채용되는 증발기 또는 응축기인 것을 특징으로 한다. In addition, the refrigerator heat exchanger in the present invention is characterized in that the evaporator or condenser employed in the refrigeration cycle of the refrigerator.

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

본 실시예에 따른 냉장고는 도 3과 도 4에 도시된 바와 같이, 냉동사이클 구성요소가 설치되는 본체(10)를 구비하며, 본체(10)의 내부에는 전면으로 개방된 저장실(11)이 형성되고, 본체(10)의 전면에는 저장실(11)을 개폐하도록 회동 가능하게 힌지결합된 도어(20)가 설치된다.As shown in FIGS. 3 and 4, the refrigerator according to the present exemplary embodiment includes a main body 10 in which a refrigeration cycle component is installed, and a storage compartment 11 open to the front is formed in the main body 10. And, the front of the main body 10 is provided with a door 20 is hinged rotatably to open and close the storage compartment (11).

또 냉동사이클은 압축기(3)와 응축기(4) 및 모세관(5)과 증발기(6)가 냉매관(8)을 통해 폐회로를 이루도록 마련되며, 상기 모세관(5)은 팽창밸브와 같은 다른 형태의 팽창장치를 채용하여도 무방하다. In addition, the refrigeration cycle is provided such that the compressor (3), the condenser (4), the capillary tube (5) and the evaporator (6) form a closed circuit through the refrigerant pipe (8), the capillary tube (5) of another type such as an expansion valve An expansion device may be used.

이중 압축기(3)는 냉매를 고온고압의 기체상태로 압축시키고, 응축기(4)는 압축기(3)로부터 전달된 냉매를 고온고압의 액체상태로 응축시킨다. 이러한 압축기(3)와 응축기(4)는 본체(10)의 하부에 저장실(11)과 구획 형성된 기계실(12)에 설치되며, 기계실(12)은 본체(10) 외부의 공기가 기계실(12) 내부로 유통될 수 있게 본체(10) 외부와 통하도록 형성된다.The dual compressor 3 compresses the refrigerant into a gaseous state of high temperature and high pressure, and the condenser 4 condenses the refrigerant transferred from the compressor 3 into a liquid state of high temperature and high pressure. The compressor 3 and the condenser 4 are installed in the machine chamber 12 partitioned with the storage compartment 11 at the lower portion of the main body 10, and the air outside the main body 10 is the machine chamber 12. It is formed to communicate with the outside of the main body 10 to be distributed inside.

또 응축기(4)에서 응축된 고온고압의 액체상태 냉매는 상기 모세관(5)을 거치는 과정에서 교축 팽창되어 저온 저압의 액체상태 냉매가 되고, 증발기(6)는 모세관(5)을 거친 저온 저압의 액체상태 냉매를 증발시켜 저온 저압의 기체상태 냉매 가 되도록 하며, 상기 증발기(6)는 저장실(11) 후방 내측에 설치되고, 본체(10)에 있어서 증발기(6) 일측에는 냉각된 공기를 저장실(11)로 순환시키기 위한 순환팬(13)이 설치된다. 참고로 미설명 부호 7은 응축기(4)와 모세관(5) 사이를 연결하는 냉매관(8)의 중도에 설치되는 드라이어로써, 이러한 드라이어(7)는 응축기(4)에서 응축된 냉매가스에 포함되어 있는 수분을 제거하는 역할을 한다.In addition, the high temperature and high pressure liquid refrigerant condensed in the condenser 4 is axially expanded in the course of passing through the capillary tube 5 to become a low temperature low pressure liquid refrigerant, and the evaporator 6 is a low temperature low pressure through the capillary tube 5. The liquid refrigerant is evaporated to become a gaseous refrigerant having a low temperature and low pressure, and the evaporator 6 is installed inside the storage compartment 11 rear side, and one side of the evaporator 6 in the main body 10 stores the cooled air in the storage compartment ( A circulation fan 13 for circulating 11 is installed. For reference, reference numeral 7 denotes a dryer installed in the middle of the refrigerant pipe 8 connecting the condenser 4 and the capillary tube 5, and the dryer 7 is included in the refrigerant gas condensed in the condenser 4. It removes the moisture.

따라서 냉동사이클을 순환하는 냉매는 응축기(4)에서 기계실(12) 쪽 공기와 열교환되어 응축되면서 주위로 열을 방출하고, 증발기(6)에서 저장실(11) 내부의 공기와 열교환되어 증발되면서 저장실(11) 내부 공기의 열을 흡수하게 되는데, 저장실(11)의 공기는 이와 같이 증발기(6)와 열교환하면서 냉기로 전환되며, 이러한 증발기(6)와 상기 응축기(4)는 냉장고용 열교환기를 형성하게 된다.Therefore, the refrigerant circulating in the refrigeration cycle is heat exchanged with the air in the machine room 12 in the condenser (4) to condense and release heat to the surroundings, and in the evaporator (6) heat exchange with the air inside the storage chamber 11 to evaporate the storage compartment ( 11) absorbs the heat of the internal air, the air in the storage chamber 11 is converted to cold while heat exchange with the evaporator 6 in this way, the evaporator 6 and the condenser 4 to form a heat exchanger for the refrigerator do.

도 5에는 본 실시예에 따른 냉장고용 열교환기(4,6)가 도시된다. 5 shows a refrigerator heat exchanger 4, 6 according to the present embodiment.

도 5에 도시된 바와 같이, 상기 열교환기(4,6)는 통상의 냉매관으로 형성되는 냉매안내관(30)과, 열교환면적을 증대시키도록 냉매안내관(30)의 외주에 결합되는 복수개의 열교환핀(40)을 구비하며, 각 열교환핀(40)의 중앙 내측은 냉매안내관(30)의 외주에 결합되도록 관통되어 있다. As shown in FIG. 5, the heat exchangers 4 and 6 are coupled to the outer circumference of the refrigerant guide tube 30 and the refrigerant guide tube 30 to increase the heat exchange area. Two heat exchange fins 40, the center inner side of each heat exchange fin 40 is penetrated to be coupled to the outer circumference of the refrigerant guide pipe (30).

상기 냉매안내관(30)은 동재질로 형성되고 원형의 단면을 구비하도록 마련되며, 이러한 냉매안내관(30)은 최초 직선의 파이프형태로 제작된다. 따라서 열교환기(4,6)는 직선형태를 유지하는 냉매안내관(30)의 외주에 상기 복수개의 열교환핀(40)을 결합시킨 상태에서 냉매안내관(30)을 지그재그방식으로 반복적으로 밴딩시켜 다단의 다열 구조를 이루도록 마련되며, 이 상태에서 좌우 양측에는 열교환 기(4.6)의 형태를 유지시키기 위한 지지대(51,52)가 결합된다. The refrigerant guide tube 30 is formed of the same material and is provided to have a circular cross section, and the refrigerant guide tube 30 is manufactured in the form of a first straight pipe. Therefore, the heat exchangers 4 and 6 repeatedly band the refrigerant guide tubes 30 in a zigzag manner in a state in which the plurality of heat exchange fins 40 are coupled to the outer circumference of the refrigerant guide tubes 30 maintaining a straight shape. It is provided to form a multi-stage multi-column structure, in which the support (51, 52) for maintaining the shape of the heat exchanger (4.6) is coupled to the left and right sides.

한편, 도 6 및 도 7에 도시된 바와 같이, 본 실시예에 따른 냉장고용 열교환기(4,6)에 있어서, 열교환기(4,6)를 형성하는 냉매안내관(30)의 내부에는 냉매안내관(30)을 따라 유동하는 냉매의 흐름이 난류를 형성하도록 냉매의 흐름을 유도하는 난류유도부재(60)가 마련된다. 6 and 7, in the refrigerator heat exchangers 4 and 6 according to the present embodiment, a refrigerant is provided inside the refrigerant guide tube 30 forming the heat exchangers 4 and 6. The turbulence guide member 60 is provided to guide the flow of the coolant so that the flow of the coolant flowing along the guide tube 30 forms the turbulent flow.

이러한 난류유도부재(60)는 냉매안내관(30)의 길이방향을 따라 배치되고, 냉매안내관(30) 전구간의 냉매의 유동이 난류를 형성하도록 냉매안내관(30)의 전구간에 걸쳐 형성되는 것이 바람직한데, 본 실시예에 있어서 난류유도부재(60)는 냉매안내관(30)의 길이방향과 교차하는 방향으로 밴딩된 복수의 밴딩부(61)를 구비하도록 지그재그방식으로 밴딩된 와이어를 통해 구성된다. The turbulence guide member 60 is disposed along the longitudinal direction of the refrigerant guide tube 30, and is formed over the entire period of the refrigerant guide tube 30 so that the flow of the refrigerant between the refrigerant guide tube 30 bulbs forms turbulent flow. Preferably, in the present embodiment, the turbulence guide member 60 is provided with a plurality of banding portions 61 that are bent in a direction crossing the longitudinal direction of the refrigerant guide tube 30. It is composed.

따라서 이러한 난류유도부재(60)가 냉매안내관(30)의 내부에 마련된 상태에서는 냉매안내관(30)을 따라 유동하던 냉매가 난류유도부재(60)의 각 밴딩부(61)에 부딪치게 되면서 층류가 아닌 난류를 형성하게 되고, 냉매안내관(30)을 통한 냉매의 흐름이 불규칙한 난류를 형성하게 되면, 냉매안내관(30)을 따라 안내되는 냉매 전체가 골고루 냉매안내관(30)의 내벽 쪽으로 유동하여 냉매안내관(30) 외측 공기와 활발하게 열교환작용을 수행하게 되어 열교환기(4,6)의 열교환효율이 큰 폭으로 향상된다. Therefore, in the state where the turbulence guide member 60 is provided inside the refrigerant guide tube 30, the refrigerant flowing along the refrigerant guide tube 30 hits each of the bending portions 61 of the turbulence guide member 60, thereby causing laminar flow. If not to form a turbulent flow, and the flow of the refrigerant through the refrigerant guide tube 30 is irregular turbulence, the entire refrigerant guided along the refrigerant guide tube 30 evenly toward the inner wall of the refrigerant guide tube 30 By flowing and actively performing heat exchange with the air outside the refrigerant guide tube 30, the heat exchange efficiency of the heat exchangers 4 and 6 is greatly improved.

또 이러한 난류유도부재(60)는 탄성변형 가능한 재질을 통해 형성되고 냉매안내관(30)의 내부로 용이하게 삽입되도록 냉매안내관(30)의 지름보다 다소 작은 폭을 갖도록 마련되는데, 이러한 난류유도부재(60)는 별도의 고정수단을 통하지 않 고서도 열교환기(4,6)의 조립시 냉매안내관(30)의 내부에 그 위치가 고정되도록 설치된다. In addition, the turbulence induction member 60 is formed through an elastically deformable material and is provided to have a width smaller than the diameter of the refrigerant guide tube 30 so as to be easily inserted into the refrigerant guide tube 30. The member 60 is installed so that its position is fixed inside the refrigerant guide pipe 30 when assembling the heat exchangers 4 and 6 without going through a separate fixing means.

상세히 설명하면, 상기 열교환기는 도 8과 같이 지그재그방식으로 밴딩되기 전에 일직선상태를 유지하고 있는 냉매안내관(30)의 외주에 먼저 열교환핀(40)을 결합하고, 이 상태의 냉매안내관(30) 내부에 도 9와 같이, 상기 난류유도부재(60)를 삽입한 상태에서 상기 냉매안내관(30)을 다단의 다열구조를 이루도록 지그재그 방식으로 밴딩하여 도 10의 상태가 되도록 한 후 양측에 상기 지지대(51,52)가 결합되도록 하여 조립되는데, 냉매안내관(30)이 밴딩되기 전에 냉매안내관(30) 내부에 삽입되어 있던 난류유도부재(60)는 냉매안내관(30)이 밴딩되는 과정에서 냉매안내관(30)과 함께 밴딩되고, 냉매안내관(30)의 밴딩작업이 완료된 상태에서 상기 난류유도부재(60)는 밴딩된 냉매안내관(30)의 굴곡부에 걸려 지지되며 냉매안내관(30)의 내부에서 그 위치가 고정된다.In detail, the heat exchanger first couples the heat exchange fins 40 to the outer circumference of the refrigerant guide tube 30 which is maintained in a straight state before bending in a zigzag manner as shown in FIG. 8, and the refrigerant guide tube 30 in this state. 9) inside the turbulence guide member 60, the refrigerant guide tube 30 is inserted in a zigzag manner to form a multi-stage multi-stage structure in a state of FIG. The support 51 and 52 are assembled to be coupled to each other, and the turbulence guide member 60 inserted into the coolant guide tube 30 before the coolant guide tube 30 is bent is connected to the coolant guide tube 30. Bending together with the refrigerant guide tube 30 in the process, in the state where the bending of the refrigerant guide tube 30 is completed, the turbulence guide member 60 is supported by the bent portion of the bent refrigerant guide tube 30 and the refrigerant guide Its position is fixed inside the tube 30.

따라서 본 실시예에 따른 냉장고용 열교환기(4,6)는 상기 난류유도부재(60)의 설치로 인해 열교환효율이 향상되면서도 난류유도부재(60)의 고정을 위한 별도의 고정수단이 필요치 않게 되어 난류유도부재(60)의 추가에 따른 비용부담이 적게 발생하게 된다. Therefore, the heat exchanger for refrigerators 4 and 6 according to the present embodiment do not need a separate fixing means for fixing the turbulence guide member 60 while improving heat exchange efficiency due to the installation of the turbulence guide member 60. Less cost burden due to the addition of the turbulence induction member 60.

또한 도 11 내지 도 13에는 본 발명의 다른 실시예에 따른 난류유도부재(60´,60˝,60´´´)가 각각 도시된다. 11 to 13 also show turbulence guide members 60 ', 60', 60 '' according to another embodiment of the present invention, respectively.

즉, 다른 실시예에 있어서, 난류유도부재(60´,60˝,60´´´)는 도 11에 도시된 바와 같이 코일스프링형태로 마련되거나, 도 12와 같이 비틀려진 형태의 판상 으로도 마련될 수 있고, 도 13과 같이 냉매안내관(30)의 길이방향으로 형성된 봉형상의 몸체(61´´´)와, 상기 몸체(61´´´)의 외주에 냉매안내관(30)을 따라 유동하는 냉매의 흐름과 교차되는 방향으로 돌출된 복수의 돌기(62´´´)를 구비하도록 마련될 수도 있는데, 이와 같이 난류유도부재(60,60´,60˝,60´´´)는 냉매안내관(30) 내부를 유동하는 냉매에 저항으로 작용하여 냉매안내관(30) 내부 냉매의 유동을 난류로 유도하는 범위 내에서 이 밖의 여러 가지 다른 다양한 형태로도 구현 가능하다. That is, in another embodiment, the turbulence inducing members 60 ', 60', 60 '' are also provided in the form of coil springs as shown in FIG. 11 or in the form of a twisted plate as shown in FIG. 13, a rod-shaped body 61′´´ formed in the longitudinal direction of the refrigerant guide tube 30 and flows along the refrigerant guide tube 30 on the outer circumference of the body 61 ′ ′ ′ as shown in FIG. 13. It may be provided to have a plurality of projections (62 '') protruding in the direction intersecting the flow of the refrigerant to be, the turbulence induction member (60, 60 ', 60', 60 '') is guided to the refrigerant By acting as a resistance to the refrigerant flowing in the tube 30, the refrigerant guide tube 30 may be implemented in various other various forms within the range of inducing the flow of the refrigerant into turbulent flow.

또 다른 실시예에 따른 난류유도부재(60,60˝,60´´´) 역시 탄성변형 가능한 재질로 마련될 경우 첫 실시예에 따른 난류유도부재(60)처럼 열교환기(4,6)의 조립시 냉매안내관(30)이 밴딩되는 과정에서 그 위치가 고정될 수 있게 된다. When the turbulence inducing members 60, 60˝, 60´´´ according to another embodiment are also made of an elastically deformable material, the heat exchanger 4,6 may be assembled like the turbulence inducing member 60 according to the first embodiment. When the refrigerant guide pipe 30 is bent in the position can be fixed.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 냉장고용 열교환기는 냉매안내관을 따라 유동되는 냉매의 흐름이 냉매안내관의 내부에 설치된 난류유도부재에 의해 불규칙한 난류를 형성하게 된다. As described above in detail, the heat exchanger for a refrigerator according to the present invention forms an irregular turbulence by a turbulent induction member installed in the refrigerant guide tube, in which the flow of the refrigerant flowing along the refrigerant guide tube.

따라서 본 발명에 따른 냉장고용 열교환기는 냉매안내관을 따라 안내되는 냉매 전체가 냉매안내관의 내벽 쪽으로 골고루 유동하게 되면서 냉매안내관 외측 공기와 활발하게 열교환작용을 수행하게 되어 열교환기의 열교환효율을 큰 폭으로 향상시킬 수 있게 된다. Therefore, in the heat exchanger for a refrigerator according to the present invention, the entire refrigerant guided along the refrigerant guide tube flows evenly toward the inner wall of the refrigerant guide tube, thereby actively performing heat exchange with the air outside the refrigerant guide tube, thereby increasing the heat exchange efficiency of the heat exchanger. The width can be improved.

Claims (8)

냉매를 안내하는 냉매안내관과, 상기 냉매안내관의 열교환면적을 증대시키도록 상기 냉매안내관의 외주에 마련된 복수개의 열교환핀을 구비하는 냉장고용 열교환기에 있어서, In the heat exchanger for refrigerator having a refrigerant guide tube for guiding the refrigerant and a plurality of heat exchange fins provided on the outer periphery of the refrigerant guide tube to increase the heat exchange area of the refrigerant guide tube, 상기 냉매안내관의 내부에는 상기 냉매안내관을 따라 유동하는 냉매의 흐름이 난류를 형성하도록 냉매의 흐름을 유도하는 난류유도부재가 마련되고, Inside the coolant guide tube is provided with a turbulence induction member for inducing the flow of the coolant so that the flow of the coolant flowing along the coolant guide tube forms a turbulent flow, 상기 냉장고용 열교환기는 직선형태를 유지하는 상기 냉매안내관 외주에 상기 열교환핀을 결합시키고 상기 냉매안내관에 상기 난류유도부재를 삽입한 상태에서 상기 냉매안내관을 지그재그방식으로 밴딩시켜 마련되며, The heat exchanger for the refrigerator is provided by coupling the heat exchange fins to the outer circumference of the refrigerant guide tube maintaining a straight shape and banding the refrigerant guide tube in a zigzag manner with the turbulent induction member inserted into the refrigerant guide tube. 상기 난류유도부재는 탄성변형 가능한 재질로 형성되어 상기 냉매안내관이 밴딩되는 과정에서 상기 냉매안내관 내부에 위치가 고정된 것을 특징으로 하는 냉장고용 열교환기. The turbulence induction member is formed of an elastically deformable material, the heat exchanger for a refrigerator, characterized in that the position is fixed inside the refrigerant guide tube in the process of bending the refrigerant guide tube. 제 1항에 있어서,The method of claim 1, 상기 난류유도부재는 상기 냉매안내관의 길이방향을 따라 배치된 것을 특징으로 하는 냉장고용 열교환기.The turbulence induction member is a heat exchanger for a refrigerator, characterized in that disposed along the longitudinal direction of the refrigerant guide pipe. 제 2항에 있어서,The method of claim 2, 상기 난류유도부재는 지그재그방식으로 밴딩된 와이어를 포함하는 것을 특징으로 하는 냉장고용 열교환기. The turbulence induction member is a refrigerator heat exchanger, characterized in that it comprises a wire banded in a zigzag manner. 제 2항에 있어서,The method of claim 2, 상기 난류유도부재는 코일스프링 형태로 마련된 것을 특징으로 하는 냉장고용 열교환기.The turbulence induction member is a heat exchanger for a refrigerator, characterized in that provided in the form of a coil spring. 제 2항에 있어서,The method of claim 2, 상기 난류유도부재는 비틀려진 형태의 판상으로 마련된 것을 특징으로 하는 냉장고용 열교환기.The turbulence induction member is a heat exchanger for a refrigerator, characterized in that provided in a plate shape of the twisted form. 제 2항에 있어서,The method of claim 2, 상기 난류유도부재에는 외주에 상기 냉매안내관을 따라 유동하는 냉매의 흐름과 교차하는 방향으로 돌출된 복수개의 돌기가 형성된 것을 특징으로 하는 냉장고용 열교환기.And a plurality of protrusions protruding in the turbulent guide member in a direction intersecting with a flow of the refrigerant flowing along the refrigerant guide tube on an outer circumference thereof. 삭제delete 제 1항에 있어서,The method of claim 1, 상기 냉장고용 열교환기는 냉장고의 냉동사이클에 채용되는 증발기 또는 응축기인 것을 특징으로 하는 냉장고용 열교환기.The heat exchanger for a refrigerator is a heat exchanger for a refrigerator, characterized in that the evaporator or condenser employed in the refrigeration cycle of the refrigerator.
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