KR100752636B1 - Heat exchanger for refrigerator and manufacturing method of its tube - Google Patents

Heat exchanger for refrigerator and manufacturing method of its tube Download PDF

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Publication number
KR100752636B1
KR100752636B1 KR1020060039725A KR20060039725A KR100752636B1 KR 100752636 B1 KR100752636 B1 KR 100752636B1 KR 1020060039725 A KR1020060039725 A KR 1020060039725A KR 20060039725 A KR20060039725 A KR 20060039725A KR 100752636 B1 KR100752636 B1 KR 100752636B1
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KR
South Korea
Prior art keywords
tube
refrigerator
heat exchanger
plate
refrigerant
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Application number
KR1020060039725A
Other languages
Korean (ko)
Inventor
김승진
남승원
배수용
김혁중
Original Assignee
삼성광주전자 주식회사
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Priority to KR1020060039725A priority Critical patent/KR100752636B1/en
Priority to EP07250620A priority patent/EP1852669A1/en
Priority to US11/710,982 priority patent/US20070256824A1/en
Priority to CNA2007100863773A priority patent/CN101067529A/en
Application granted granted Critical
Publication of KR100752636B1 publication Critical patent/KR100752636B1/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
    • 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
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/205—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with annular guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
    • B21H8/005—Embossing sheets or rolls
    • 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
    • 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
    • F28F1/32—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 the means having portions engaging further tubular elements
    • 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
    • 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
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/182—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing especially adapted for evaporator or condenser surfaces
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators
    • 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
    • Y10T29/49378—Finned tube
    • Y10T29/49384—Internally finned

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

Abstract

A heat exchanger for a refrigerator is provided to activate heat exchange between a refrigerant flowing in a tube and external air by inducing a turbulent flow of refrigerant due to unevenness of an inner periphery of a tube. A heat exchanger for a refrigerator includes a tube(30) guiding a refrigerant, and a plurality of heat exchange fins formed at an outer periphery of the tube to increase a heat exchange area of the tube. Projections and recesses(31) are formed on an inner periphery of the tube in a direction perpendicular to the longitudinal direction of the tube, in order to induce a turbulent flow of refrigerant in the tube.

Description

냉장고용 열교환기 및 그 튜브의 제조방법{HEAT EXCHANGER FOR REFRIGERATOR AND MANUFACTURING METHOD OF ITS TUBE}Heat exchanger for refrigerator and method for manufacturing the tube {HEAT EXCHANGER FOR REFRIGERATOR AND MANUFACTURING METHOD OF ITS TUBE}

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 8은 5를 절취선 B-B를 따라 절취한 후 화살표 방향에서 바라본 단면도이다. 8 is a cross-sectional view taken from the arrow direction after cutting 5 along the cutting line B-B.

도 9와 도 10은 본 발명의 바람직한 일 실시예에 따른 냉장고용 열교환기에 있어서 튜브의 제조과정을 나타낸 것으로, 각가 준비단계와 결합단계 과정을 나타낸 것이다. 9 and 10 show the manufacturing process of the tube in the heat exchanger for a refrigerator in accordance with one preferred embodiment of the present invention, each of which shows a preparation step and a coupling step process.

도 11과 도 12는 각각 본 발명의 따른 냉장고용 열교환기 튜브의 제조과정에 있어서, 준비단계를 거친 플레이트의 구조를 도시한 사시도로, 다른 실시예에 따른 요철의 구조를 나타낸 것이다. 11 and 12 are perspective views showing the structure of a plate that has been prepared in the manufacturing process of the heat exchanger tube for a refrigerator according to the present invention, respectively, showing the structure of the unevenness according to another embodiment.

도 13은 도 12를 절취선 C-C를 따라 절취한 후 화살표 방향에서 바라본 단면도이다. FIG. 13 is a cross-sectional view taken along the line C-C of FIG. 12 and seen from the arrow direction.

* 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: 튜브 31,31´,31˝: 요철30: Tube 31,31´, 31 °: Uneven

31´a: 요철형성부재 40: 열교환핀31′a: Uneven member 40: Heat exchanger fin

60: 플레이트60: plate

본 발명은 냉장고용 열교환기에 관한 것으로, 더욱 상세하게는 튜브를 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 the flow of the refrigerant flowing along the 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 튜브(1)와, 튜브(1)의 열교환면적을 증대시키도록 상기 튜브(1)의 외주에 결합되는 복수개의 열교환핀(2)을 구비하며, 상기 튜브(1)는 단면이 원형으로 마련되는 일반적인 파이프형상을 취하게 된다. Here, the evaporator and the condenser form a heat exchanger for a refrigerator, and as shown in FIG. 1, the heat exchanger for the refrigerator (1) and the tube (1) are formed to increase the heat exchange area of the tube (1). It is provided with a plurality of heat exchange fins (2) coupled to the outer periphery of the tube (1), the tube (1) takes a general pipe shape having a circular cross section.

그러나 이러한 종래 냉장고용 열교환기는 상기 튜브(1)가 단순한 원형 단면의 파이프형상으로 마련되어 튜브(1)를 따라 유동하는 냉매의 흐름이 층류를 형성 하기 때문에, 도 2에 도시된 바와 같이 튜브(1) 내벽에 근접한 냉매(a)는 튜브(1) 외부의 공기와 활발히 열교환되는 반면 튜브(1) 중심쪽 냉매(b)는 튜브(1) 외부 공기와 열교환이 어렵게 되는 등 튜브(1)를 따라 유동하는 냉매가 주위공기와 골고루 열교환되지 못하게 되어 열교환효율이 저하되는 문제점이 있었다.However, such a conventional refrigerator heat exchanger has a tube 1 having a simple circular cross-sectional shape, so that the flow of the refrigerant flowing along the tube 1 forms a laminar flow, so that the tube 1 is shown in FIG. 2. The refrigerant a near the inner wall actively exchanges with the air outside the tube 1 while the refrigerant b in the center of the tube 1 flows along the tube 1 such that heat exchange with the air outside the tube 1 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 냉매를 안내하는 튜브의 구조를 개선하여 열교환효율이 향상되도록 마련된 냉장고용 열교환기를 제공하는 것이다. The present invention is to solve such a problem, it is an object of the present invention to provide a refrigerator heat exchanger provided to improve the heat exchange efficiency by improving the structure of the tube for guiding the refrigerant.

또한 본 발명의 또 다른 목적은 냉장고용 열교환기의 열교환효율을 향상시키도록 마련된 냉장고용 열교환기의 튜브 제조방법을 제공하는 것이다. In addition, another object of the present invention is to provide a method of manufacturing a tube of a heat exchanger for a refrigerator provided to improve the heat exchange efficiency of the heat exchanger for a refrigerator.

이러한 목적을 달성하기 위한 본 발명에 따른 냉장고용 열교환기는 냉매를 안내하는 튜브와, 상기 튜브의 열교환면적을 증대시키도록 상기 튜브의 외주에 마련된 복수개의 열교환핀을 구비하고, 상기 튜브의 내주에는 상기 튜브를 따라 유동하는 냉매의 흐름이 난류를 형성하도록 냉매의 흐름을 유도하는 요철이 마련된 것을 특징으로 한다. Refrigerator heat exchanger according to the present invention for achieving this object is provided with a tube for guiding the refrigerant and a plurality of heat exchange fins provided on the outer periphery of the tube to increase the heat exchange area of the tube, the inner circumference of the tube It is characterized in that the irregularities are provided to guide the flow of the refrigerant to form a turbulent flow of the refrigerant flowing along the tube.

그리고 상기 요철의 길이방향은 상기 튜브의 길이방향과 교차하도록 마련된 것을 특징으로 한다. And the longitudinal direction of the unevenness is characterized in that it is provided to cross the longitudinal direction of the tube.

또한 상기 요철은 상기 튜브의 내주면을 가공하여 마련된 것을 특징으로 한다. In addition, the unevenness is characterized in that provided by processing the inner peripheral surface of the tube.

또한 상기 요철은 상기 튜브의 내주면에 복수의 요철형성부재를 결합하여 마련된 것을 특징으로 한다.In addition, the unevenness is characterized in that provided by coupling a plurality of unevenness forming member on the inner peripheral surface of the tube.

또한 상기 요철은 상기 튜브의 내주면에 소정재질의 미세가루를 덩어리를 형성하도록 결합시켜 마련된 것을 특징으로 한다. In addition, the unevenness is characterized in that it is provided by combining to form a lump of fine powder of a predetermined material on the inner peripheral surface of the tube.

또한 본 발명에 따른 냉장고용 열교환기는 냉장고의 냉동사이클에 채용되는 증발기와 응축기를 포함하는 것을 특징으로 한다.In addition, the refrigerator heat exchanger according to the present invention is characterized in that it comprises an evaporator and a condenser employed in the refrigeration cycle of the refrigerator.

그리고 본 발명에 따른 냉장고용 열교환기의 튜브 제조방법은 플레이트 일면에 요철을 마련하는 준비단계와, 상기 요철이 마련된 플레이트의 일면이 내주면을 형성하도록 상기 플레이트를 원통형상이 되도록 가공한 상태에서 상기 플레이트의 폭방향 양단을 상호 결합시키는 결합단계를 포함하는 것을 특징으로 한다. And the tube manufacturing method of the heat exchanger for a refrigerator according to the present invention is a step of preparing the irregularities on one surface of the plate, and the plate is processed to form a cylindrical shape so that one surface of the plate provided with the irregularities to form an inner peripheral surface of the plate And a coupling step of coupling both ends in the width direction.

또한 상기 결합단계에서 상기 플레이트의 폭방향 양단은 상호 용접되고, 상기 준비단계에서 상기 요철은 상기 플레이트의 폭방향 양단 안쪽에 마련된 것을 특징으로 한다.In addition, both ends of the width direction of the plate is welded to each other in the coupling step, and the unevenness in the preparation step is characterized in that it is provided inside the width direction both ends of the plate.

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 냉매 관(8)을 통해 폐회로를 이루도록 마련되며, 상기 모세관(5)은 팽창밸브와 같은 다른 형태의 팽창장치로 대체되어도 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 It may be replaced by an expansion device.

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 상기 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 room 12 partitioned with the storage compartment 11 at the lower part of the main body 10, and the air outside the main body 10 is the machine room 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 냉매가 되도록 한다. 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 a low temperature low pressure gaseous refrigerant. The evaporator 6 is installed inside the rear of the storage chamber 11, and a circulation fan 13 for circulating the cooled air to the storage chamber 11 is installed at one side of the evaporator 6 in the main body 10. 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 중공의 튜브(30)와, 열교환면적을 증대시키도록 튜브(30)의 외주에 결합되는 복수개의 열교환핀(40)을 구비하며, 각 열교환핀(40)의 중앙 내측은 튜브(30)의 외주에 결합되도록 관통되어 있다. As shown in FIG. 5, the heat exchangers 4 and 6 have a hollow tube 30 formed of a conventional refrigerant tube, and a plurality of heat exchangers coupled to the outer circumference of the tube 30 to increase the heat exchange area. The fin 40 is provided, and the center inner side of each heat exchange fin 40 penetrates to be coupled to the outer circumference of the tube 30.

상기 튜브(30)는 동재질을 통해 원형의 단면을 구비하도록 마련되고, 상기 열교환기(4,6)는 이러한 튜브(30) 외주에 상기 복수개의 열교환핀(40)을 결합시킨 후 상기 튜브(30)를 지그재그방식으로 반복적으로 밴딩시켜 다단의 다열 구조를 이루도록 한 상태에서 좌우 양측에는 열교환기(4.6)의 형태를 유지시키기 위한 지지대(51,52)를 결합하여 조립된다. The tube 30 is provided to have a circular cross section through the same material, the heat exchanger (4, 6) is coupled to the plurality of heat exchange fins 40 to the outer periphery of the tube 30, the tube ( 30) is repeatedly assembled in a zigzag manner to combine the supports 51 and 52 for maintaining the shape of the heat exchanger 4.6 on both left and right sides in a state of forming a multi-stage multi-stage structure.

한편, 도 6 내지 도 8에 도시된 바와 같이, 본 실시예에 따른 냉장고용 열교환기(4,6)에 있어서, 상기 튜브(30)의 내주에는 요철(31)이 형성되어 튜브(30)를 따라 유동하는 냉매의 흐름이 난류를 형성하도록 유도하게 된다. 이러한 요철(31)은 튜브(30)를 따라 유동하는 냉매의 흐름에 보다 강한 저항으로 작용하기 위해 그 길이방향이 튜브(30)의 길이방향과 교차하도록 마련되는 것이 바람직하며, 규칙전인 패턴은 물론 불규칙적인 패턴을 형성하도록 마련될 수도 있다. 6 to 8, in the refrigerator heat exchangers 4 and 6 according to the present embodiment, an unevenness 31 is formed on the inner circumference of the tube 30 to form the tube 30. The flow of refrigerant flowing along will lead to the formation of turbulent flow. Such unevenness 31 is preferably provided so that its longitudinal direction intersects the longitudinal direction of the tube 30 in order to act as a stronger resistance to the flow of the refrigerant flowing along the tube 30, as well as the regular pattern It may be provided to form an irregular pattern.

따라서 이러한 요철(31)이 튜브(30)의 내주에 마련된 상태에서는 튜브(30)를 따라 유동하던 냉매가 요철(31)에 부딪치게 되면서 층류가 아닌 난류를 형성하게 되고, 튜브(30)를 통한 냉매의 흐름이 불규칙한 난류를 형성하게 되면, 튜브(30)를 따라 안내되는 냉매 전체가 골고루 튜브(30)의 내벽 쪽으로 유동하여 튜브(30) 외 측 공기와 활발하게 열교환작용을 수행하게 되어 열교환기(4,6)의 열교환효율이 큰 폭으로 향상된다.Therefore, in the state in which the unevenness 31 is provided on the inner circumference of the tube 30, the coolant flowing along the tube 30 hits the unevenness 31 to form turbulent flow, not laminar flow, and the coolant through the tube 30. When the flow forms irregular turbulent flow, the entire refrigerant guided along the tube 30 evenly flows toward the inner wall of the tube 30 to actively exchange heat with the air outside the tube 30 to exchange heat. The heat exchange efficiency of 4 and 6 is greatly improved.

그리고 상기 튜브(30)가 이미 원통형상으로 마련된 상태에서 좁은 튜브(30)의 내경으로 인해 상기 요철(31)을 튜브(30)의 내주에 형성하는 작업이 다소 어려울 수 있다. 따라서 상기 요철(31)을 튜브(30)의 내주에 용이하게 형성할 수 있도록 상기 튜브(30)는 플레이트(60)를 롤포밍가공하여 원통형의 파이프형태로 제조되고, 상기 요철(31)은 이러한 튜브(30)의 제조과정 중 상기 플레이트(60)의 일면에 형성된다. In addition, since the inner diameter of the narrow tube 30 in the state in which the tube 30 is already provided in a cylindrical shape, it may be difficult to form the irregularities 31 on the inner circumference of the tube 30. Therefore, the tube 30 is formed in the form of a cylindrical pipe by roll forming the plate 60 so that the irregularities 31 can be easily formed on the inner circumference of the tube 30. It is formed on one surface of the plate 60 during the manufacturing process of the tube (30).

이러한 튜브(30)의 제조과정을 구체적으로 설명하면 다음과 같다.Referring to the manufacturing process of the tube 30 in detail.

상기 튜브(30)를 제조하기 위해서는 먼저 튜브(30)를 형성할 동재질의 플레이트(60)를 준비한 상태에서 상기 플레이트(60)의 일면에 상기 요철(31)을 마련하는 준비단계가 진행된다. In order to manufacture the tube 30, a preparation step of providing the concave-convex 31 on one surface of the plate 60 is performed while preparing a plate 60 of the same material to form the tube 30.

이때는 도 9에 도시된 바와 같이, 상기 플레이트(60)를 일반 롤러(100)와 외주에 치형이 형성된 롤러(200) 사이에 위치시킨 상태에서 상기 각 롤러(100,200)를 상호 반대방향으로 회전시키게 되는데, 플레이트(60)는 이러한 각 롤러(100,200) 사이에서 가압되면서 그 일면에 상기 요철(31)이 형성된다. In this case, as shown in FIG. 9, the rollers 60 and 200 are rotated in opposite directions in a state where the plate 60 is positioned between the general roller 100 and the roller 200 having teeth formed on the outer circumference thereof. The plate 60 is pressed between the rollers 100 and 200, and the unevenness 31 is formed on one surface thereof.

물론 상기 요철(31)은 프레스가공을 통해서 형성하거나, 스크래치공구 등을 이용하여 상기 플레이트(60)의 일면을 긁어내는 간단한 작업을 통해서도 형성할 수 있다. Of course, the concave-convex 31 may be formed through press working or through a simple operation of scraping one surface of the plate 60 using a scratch tool or the like.

상기 준비단계 이후에는 도 10에 도시된 바와 같이, 상기 요철(31)이 마련된 플레이트(60)의 일면이 내주면을 형성하도록 상기 플레이트(60)를 롤포밍가공을 통해 원통형상이 되도록 하고 상기 플레이트(60)의 폭방향 양단(61,62)을 상호 결합시키는 결합단계 작업이 이루어지며, 상기 플레이트(60)는 이러한 준비단계와 결합단계를 순차적으로 거쳐 상기 튜브(30)로 제작된다. After the preparation step, as shown in Figure 10, so that one surface of the plate 60 is provided with the concave-convex 31 to form an inner circumferential surface to form a cylindrical shape through the roll forming process and the plate 60 Coupling step operation is performed to couple the widthwise ends (61, 62) of each other), the plate 60 is made of the tube 30 through the preparation step and the coupling step sequentially.

따라서 본 실시예에 따른 냉장고용 열교환기(4,6)의 튜브(30)는 튜브(30)의 내주에 마련되는 상기 요철(31)을 튜브(30)의 제작과정 중에 용이하게 형성할 수 있게 된다.Therefore, the tube 30 of the heat exchanger 4 and 6 for refrigerators according to the present embodiment may easily form the unevenness 31 provided in the inner circumference of the tube 30 during the manufacturing process of the tube 30. do.

그리고 상기 결합단계에서 상기 플레이트(60)의 폭방향 양단(61,62)은 용접가공을 통해 상호 결합되고, 이때는 플레이트(60)의 폭방향 양단(61,62)이 상호 일치된 상태에서 이루어져야 용접가공이 용이해지면서도 보다 기밀성 있는 튜브(30)를 제조할 수 있게 되는데, 상기 요철(31)이 플레이트(60)의 폭방향 양단(61,62) 부분 형성되는 경우에는 요철(31)이 형성되는 과정에서 플레이트(60)의 폭방향 양단(61,62) 측이 변형되면서 그 두께가 서로 달라질 우려가 있다. 따라서 상기 준비단계에서는 상기 요철(31)이 플레이트(60)의 폭방향 양단(61,62) 안쪽에 마련되도록 하여 상기 요철(31)이 형성되는 과정에서 플레이트(60)의 폭방향 양단(61,62) 측이 변형되지 않도록 하는 것이 바람직하다.In the joining step, both ends 61 and 62 of the width direction of the plate 60 are coupled to each other by welding, in which case the ends of the plate 60 to be matched with each other in the width direction both ends 61 and 62 of the plate 60 are welded. It is possible to manufacture a more airtight tube 30 while being easy to process, when the concave-convex 31 is formed at both ends 61 and 62 of the width direction of the plate 60, the concave-convex 31 is formed. In the process, as the widthwise both ends 61 and 62 of the plate 60 are deformed, the thickness thereof may be different from each other. Therefore, in the preparation step, the unevenness 31 is provided inside the widthwise both ends 61 and 62 of the plate 60 so that the unevenness 31 is formed in the widthwise both ends 61 of the plate 60. 62) it is desirable not to deform the side.

또한 상기 준비단계에서 플레이트(60) 일면을 가공하여 형성되는 상기 요철은 본 실시예와 다른 방법을 통해서도 플레이트(60)의 일면에 마련될 수 있다. In addition, the irregularities formed by processing one surface of the plate 60 in the preparation step may be provided on one surface of the plate 60 through a method different from this embodiment.

도 11과 도 12에는 본 발명의 다른 실시예에 따른 요철(31´,31˝)이 형성된 플레이트(60)의 구조가 도시되며, 이때는 튜브(30) 제조과정에서 준비단계를 거친 상태를 나타낸 것이다. 11 and 12 are shown the structure of the plate 60 is formed with the irregularities (31 ', 31') according to another embodiment of the present invention, in this case shows a state that went through the preparation step in the tube 30 manufacturing process .

먼저, 다른 실시예도 11에 있어서, 플레이트(60)의 일면에 마련되는 요철(31´)은 플레이트(60)의 일면에 소정 길이의 봉형상으로 마련되는 별도의 요철형성부재(31´a)를 복수개 결합시켜 마련되고, 이때 각 요철형성부재(31´a)는 용접작업 등을 통해 플레이트(60)에 결합된다. First, in another embodiment of FIG. 11, the unevenness 31 ′ provided on one surface of the plate 60 includes a separate unevenness forming member 31′a provided on one surface of the plate 60 in a rod shape having a predetermined length. A plurality of couplings are provided, and each concave-convex forming member 31'a is coupled to the plate 60 through a welding operation.

또 도 12 및 도 13에 도시된 바와 같이, 요철(31˝)은 상기 플레이트(60)의 일면에 소정재질의 미세가루를 덩어리를 형성하도록 결합시켜 마련할 수도 있다. 12 and 13, the concave-convex (31˝) may be provided by combining the fine powder of a predetermined material on one surface of the plate 60 to form a lump.

상기 미세가루는 금속가루나 돌가루와 같이 다양한 재질을 통해 구현 가능하며, 이러한 미세가루는 접착제 등을 통해 플레이트(60)의 일면에 덩어리 형태를 이루도록 접착되고, 플레이트(60)의 일면은 이러한 요철(31˝)에 의한 울퉁불퉁한 면을 형성하게 된다. The fine powder can be implemented through various materials such as metal powder or stone powder, and the fine powder is adhered to one surface of the plate 60 through an adhesive or the like to form a lump, and one surface of the plate 60 has such irregularities ( 31˝) to form a bumpy surface.

이와 같이 튜브(30) 제조과정 중 준비단계에서 플레이트(60)의 일면에 형성되는 요철(31,31´,31˝)은 열교환기(4,6)의 튜브(30) 내부를 유동하는 냉매에 저항으로 작용하여 튜브(30) 내부 냉매의 유동을 난류로 유도할 수 있는 범위 내에서 이 밖의 여러 가지 다른 형태로도 구현 가능하다. As such, the unevenness 31, 31 ′, 31 ′ formed on one surface of the plate 60 in the preparation step of the tube 30 manufacturing process may be applied to the refrigerant flowing inside the tube 30 of the heat exchanger 4, 6. It can also be implemented in various other forms within the range that can act as a resistance to induce the flow of the refrigerant inside the tube 30 to turbulent flow.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 냉장고용 열교환기는 튜브를 따라 유동되는 냉매의 흐름이 튜브의 내주에 마련된 요철에 의해 불규칙한 난류를 형성하게 된다. 따라서 본 발명에 따른 냉장고용 열교환기는 튜브를 따라 안내되는 냉매가 튜브의 내벽 쪽으로 골고루 유동하게 되면서 튜브 외측 공기와 활 발하게 열교환작용을 수행하게 되어 열교환효율을 큰 폭으로 향상시킬 수 있게 된다. As described above in detail, the heat exchanger for a refrigerator according to the present invention forms an irregular turbulence due to irregularities provided in the inner circumference of the tube. Therefore, the heat exchanger for a refrigerator according to the present invention performs a heat exchange action with the air outside the tube while the refrigerant guided along the tube is evenly flowed toward the inner wall of the tube, thereby greatly improving heat exchange efficiency.

또한 본 발명은 냉장고용 열교환기의 상기 튜브는 플레이트를 롤포밍가공하여 원통형의 파이프형태로 제조되고, 상기 요철은 이러한 튜브의 제조시 상기 플레이트의 일면에 형성되기 때문에, 상기 요철을 튜브의 내주에 보다 용이하게 형성할 수 있게 된다.In addition, according to the present invention, the tube of the heat exchanger for a refrigerator is formed in the form of a cylindrical pipe by roll forming a plate, and the unevenness is formed on one surface of the plate during the manufacture of such a tube, so that the unevenness It can be formed more easily.

Claims (11)

삭제delete 삭제delete 삭제delete 냉매를 안내하는 튜브와, 상기 튜브의 열교환면적을 증대시키도록 상기 튜브의 외주에 마련된 복수개의 열교환핀을 구비하는 냉장고용 열교환기에 있어서, In the heat exchanger for refrigerator having a tube for guiding the refrigerant and a plurality of heat exchange fins provided on the outer periphery of the tube to increase the heat exchange area of the tube, 상기 튜브의 내주에는 상기 튜브를 따라 유동하는 냉매의 흐름이 난류를 형성하도록 냉매의 흐름을 유도하는 요철이 마련되고,The inner circumference of the tube is provided with unevenness to guide the flow of the refrigerant to form a turbulent flow of the refrigerant flowing along the tube, 상기 요철은 상기 튜브의 내주면에 복수의 요철형성부재를 결합하여 마련된 것을 특징으로 하는 냉장고용 열교환기. The unevenness is a heat exchanger for a refrigerator, characterized in that provided by coupling a plurality of uneven forming member on the inner peripheral surface of the tube. 냉매를 안내하는 튜브와, 상기 튜브의 열교환면적을 증대시키도록 상기 튜브의 외주에 마련된 복수개의 열교환핀을 구비하는 냉장고용 열교환기에 있어서, In the heat exchanger for refrigerator having a tube for guiding the refrigerant and a plurality of heat exchange fins provided on the outer periphery of the tube to increase the heat exchange area of the tube, 상기 튜브의 내주에는 상기 튜브를 따라 유동하는 냉매의 흐름이 난류를 형성하도록 냉매의 흐름을 유도하는 요철이 마련되고,The inner circumference of the tube is provided with unevenness to guide the flow of the refrigerant to form a turbulent flow of the refrigerant flowing along the tube, 상기 요철은 상기 튜브의 내주면에 소정재질의 미세가루를 덩어리를 형성하도록 결합시켜 마련된 것을 특징으로 하는 냉장고용 열교환기.The unevenness is a heat exchanger for a refrigerator, characterized in that the coupling is provided on the inner peripheral surface of the tube to form a lump of a predetermined material. 제 4항 또는 제5항에 있어서,The method according to claim 4 or 5, 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. 삭제delete 삭제delete 삭제delete 냉매를 안내하는 튜브와, 상기 튜브의 열교환면적을 증대시키도록 상기 튜브의 외주에 마련된 복수개의 열교환핀을 구비하는 냉장고용 열교환기에 있어서, In the heat exchanger for refrigerator having a tube for guiding the refrigerant and a plurality of heat exchange fins provided on the outer periphery of the tube to increase the heat exchange area of the tube, 상기 튜브는 플레이트 일면에 요철을 마련하는 준비단계와, 상기 요철이 마련된 플레이트의 일면이 내주면을 형성하도록 상기 플레이트를 원통형상이 되도록 가공한 상태에서 상기 플레이트의 폭방향 양단을 상호 결합시키는 결합단계를 포함하여 제조되고, The tube includes a preparatory step of providing irregularities on one surface of the plate, and a coupling step of mutually coupling both ends of the plate in a widthwise state in a state in which the plate is processed to have a cylindrical shape so that one surface of the plate provided with the unevenness forms an inner circumferential surface. Manufactured by 상기 준비단계에서 상기 요철은 상기 플레이트의 일면에 복수의 요철형성부재를 결합시켜 마련된 것을 특징으로 하는 냉장고용 열교환기의 튜브 제조방법.The unevenness in the preparation step is a tube manufacturing method of the heat exchanger for a refrigerator, characterized in that provided by coupling a plurality of uneven surface forming member on one surface of the plate. 냉매를 안내하는 튜브와, 상기 튜브의 열교환면적을 증대시키도록 상기 튜브의 외주에 마련된 복수개의 열교환핀을 구비하는 냉장고용 열교환기에 있어서, In the heat exchanger for refrigerator having a tube for guiding the refrigerant and a plurality of heat exchange fins provided on the outer periphery of the tube to increase the heat exchange area of the tube, 상기 튜브는 플레이트 일면에 요철을 마련하는 준비단계와, 상기 요철이 마련된 플레이트의 일면이 내주면을 형성하도록 상기 플레이트를 원통형상이 되도록 가공한 상태에서 상기 플레이트의 폭방향 양단을 상호 결합시키는 결합단계를 포함하여 제조되고, The tube includes a preparatory step of providing irregularities on one surface of the plate, and a coupling step of mutually coupling both ends of the plate in a widthwise state in a state in which the plate is processed to have a cylindrical shape so that one surface of the plate provided with the unevenness forms an inner circumferential surface. Manufactured by 상기 준비단계에서 상기 요철은 상기 플레이트의 일면에 소정재질의 미세가루를 덩어리를 형성하도록 결합시켜 마련된 것을 특징으로 하는 냉장고용 열교환기의 튜브 제조방법.In the preparing step, the unevenness is a tube manufacturing method of a heat exchanger for a refrigerator, characterized in that the coupling is provided to form a lump of a fine material of a predetermined material on one surface of the plate.
KR1020060039725A 2006-05-02 2006-05-02 Heat exchanger for refrigerator and manufacturing method of its tube KR100752636B1 (en)

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EP07250620A EP1852669A1 (en) 2006-05-02 2007-02-15 Heat exchanger for refrigerator and method for manufacturing a tube thereof
US11/710,982 US20070256824A1 (en) 2006-05-02 2007-02-27 Heat exchanger for refrigerator and method for manufacturing a tube thereof
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